1285 files changed, 44917 insertions, 16329 deletions

diff --git a/.qmake.conf b/.qmake.conf
index c92e38c48f..08e1a4723c 100644
--- a/.qmake.conf
+++ b/.qmake.conf
@@ -4,4 +4,4 @@ CONFIG += warning_clean
 QT_SOURCE_TREE = $$PWD
 QT_BUILD_TREE = $$shadowed($$PWD)
 
-MODULE_VERSION = 5.13.0
+MODULE_VERSION = 5.14.0
diff --git a/config_help.txt b/config_help.txt
index ebcfa3fb42..1d37b322bd 100644
--- a/config_help.txt
+++ b/config_help.txt
@@ -241,7 +241,7 @@ Core options:
   -inotify ............. Enable inotify support
   -iconv ............... Enable iconv(3) support [posix/sun/gnu/no] (Unix only)
   -icu ................. Enable ICU support [auto]
-  -pcre ................ Select used libpcre2 [system/qt]
+  -pcre ................ Select used libpcre2 [system/qt/no]
   -pps ................. Enable PPS support [auto] (QNX only)
   -zlib ................ Select used zlib [system/qt]
 
@@ -296,7 +296,6 @@ Gui, printing, widget options:
     -gbm ............... Enable backends for GBM [auto] (Linux only)
     -kms ............... Enable backends for KMS [auto] (Linux only)
     -linuxfb ........... Enable Linux Framebuffer support [auto] (Linux only)
-    -mirclient ......... Enable Mir client support [no] (Linux only)
     -xcb ............... Enable X11 support. Select used xcb-* libraries [system/qt/no]
                          (-qt-xcb still uses system version of libxcb itself)
 
diff --git a/examples/corelib/serialization/convert/cborconverter.cpp b/examples/corelib/serialization/convert/cborconverter.cpp
index ad69983eb1..f907bb0af6 100644
--- a/examples/corelib/serialization/convert/cborconverter.cpp
+++ b/examples/corelib/serialization/convert/cborconverter.cpp
@@ -226,7 +226,7 @@ void CborDiagnosticDumper::saveFile(QIODevice *f, const QVariant &contents, cons
 
     QTextStream out(f);
     out << convertFromVariant(contents, Double).toDiagnosticNotation(opts)
-        << endl;
+        << Qt::endl;
 }
 
 CborConverter::CborConverter()
diff --git a/examples/corelib/serialization/convert/textconverter.cpp b/examples/corelib/serialization/convert/textconverter.cpp
index e80e69a0b5..7aed08f96c 100644
--- a/examples/corelib/serialization/convert/textconverter.cpp
+++ b/examples/corelib/serialization/convert/textconverter.cpp
@@ -66,7 +66,7 @@ static void dumpVariant(QTextStream &out, const QVariant &v)
     case QVariant::String: {
         const QStringList list = v.toStringList();
         for (const QString &s : list)
-            out << s << endl;
+            out << s << Qt::endl;
         break;
     }
 
@@ -80,11 +80,11 @@ static void dumpVariant(QTextStream &out, const QVariant &v)
     }
 
     case QMetaType::Nullptr:
-        out << "(null)" << endl;
+        out << "(null)" << Qt::endl;
         break;
 
     default:
-        out << v.toString() << endl;
+        out << v.toString() << Qt::endl;
         break;
     }
 }
diff --git a/examples/corelib/tools/doc/src/customtype.qdoc b/examples/corelib/tools/doc/src/customtype.qdoc
index 91b814808a..7ccfc95c70 100644
--- a/examples/corelib/tools/doc/src/customtype.qdoc
+++ b/examples/corelib/tools/doc/src/customtype.qdoc
@@ -117,8 +117,8 @@
 
     \snippet tools/customtype/main.cpp storing a custom value
 
-    Alternatively, the QVariant::fromValue() and qVariantSetValue() functions
-    can be used if you are using a compiler without support for member template
+    Alternatively, the QVariant::fromValue() function can be used if
+    you are using a compiler without support for member template
     functions.
 
     The value can be retrieved using the QVariant::value() member template
@@ -126,9 +126,6 @@
 
     \snippet tools/customtype/main.cpp retrieving a custom value
 
-    Alternatively, the qVariantValue() template function can be used if
-    you are using a compiler without support for member template functions.
-
     \section1 Further Reading
 
     The custom \c Message type can also be used with direct signal-slot
diff --git a/examples/network/bearermonitor/bearermonitor.pro b/examples/network/bearermonitor/bearermonitor.pro
index 7d90b408e0..16ac41298a 100644
--- a/examples/network/bearermonitor/bearermonitor.pro
+++ b/examples/network/bearermonitor/bearermonitor.pro
@@ -13,7 +13,7 @@ FORMS = bearermonitor_240_320.ui \
         bearermonitor_640_480.ui \
         sessionwidget.ui
 
-win32:LIBS += -lws2_32
+win32: QMAKE_USE += ws2_32
 
 CONFIG += console
 
diff --git a/examples/opengl/contextinfo/widget.cpp b/examples/opengl/contextinfo/widget.cpp
index b1b7076503..0762c91662 100644
--- a/examples/opengl/contextinfo/widget.cpp
+++ b/examples/opengl/contextinfo/widget.cpp
@@ -384,7 +384,7 @@ void Widget::renderWindowReady()
     m_output->append(tr("Qt OpenGL library handle: %1")
                      .arg(QString::number(qintptr(QOpenGLContext::openGLModuleHandle()), 16)));
 
-    QList<QByteArray> extensionList = context->extensions().toList();
+    QList<QByteArray> extensionList = context->extensions().values();
     std::sort(extensionList.begin(), extensionList.end());
     m_extensions->append(tr("Found %1 extensions:").arg(extensionList.count()));
     for (const QByteArray &ext : qAsConst(extensionList))
diff --git a/examples/vulkan/hellovulkancubes/renderer.cpp b/examples/vulkan/hellovulkancubes/renderer.cpp
index 5ada79ce79..f104d79002 100644
--- a/examples/vulkan/hellovulkancubes/renderer.cpp
+++ b/examples/vulkan/hellovulkancubes/renderer.cpp
@@ -49,6 +49,7 @@
 ****************************************************************************/
 
 #include "renderer.h"
+#include "qrandom.h"
 #include <QVulkanFunctions>
 #include <QtConcurrentRun>
 #include <QTime>
@@ -77,8 +78,6 @@ Renderer::Renderer(VulkanWindow *w, int initialCount)
       m_cam(QVector3D(0.0f, 0.0f, 20.0f)), // starting camera position
       m_instCount(initialCount)
 {
-    qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
-
     m_floorModel.translate(0, -5, 0);
     m_floorModel.rotate(-90, 1, 0, 0);
     m_floorModel.scale(20, 100, 1);
@@ -793,7 +792,9 @@ void Renderer::ensureInstanceBuffer()
             qDebug("Preparing instances %d..%d", m_preparedInstCount, m_instCount - 1);
         char *p = m_instData.data();
         p += m_preparedInstCount * PER_INSTANCE_DATA_SIZE;
-        auto gen = [](float a, float b) { return float((qrand() % int(b - a + 1)) + a); };
+        auto gen = [](int a, int b) {
+            return float(QRandomGenerator::global()->bounded(double(b - a)) + a);
+        };
         for (int i = m_preparedInstCount; i < m_instCount; ++i) {
             // Apply a random translation to each instance of the mesh.
             float t[] = { gen(-5, 5), gen(-4, 6), gen(-30, 5) };
diff --git a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp
index 81daa9bb96..cf95a0e6a0 100644
--- a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp
+++ b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp
@@ -140,12 +140,12 @@ void VulkanRenderer::initResources()
     m_devFuncs = inst->deviceFunctions(m_window->device());
 
     QString info;
-    info += QString().sprintf("Number of physical devices: %d\n", m_window->availablePhysicalDevices().count());
+    info += QString::asprintf("Number of physical devices: %d\n", m_window->availablePhysicalDevices().count());
 
     QVulkanFunctions *f = inst->functions();
     VkPhysicalDeviceProperties props;
     f->vkGetPhysicalDeviceProperties(m_window->physicalDevice(), &props);
-    info += QString().sprintf("Active physical device name: '%s' version %d.%d.%d\nAPI version %d.%d.%d\n",
+    info += QString::asprintf("Active physical device name: '%s' version %d.%d.%d\nAPI version %d.%d.%d\n",
                               props.deviceName,
                               VK_VERSION_MAJOR(props.driverVersion), VK_VERSION_MINOR(props.driverVersion),
                               VK_VERSION_PATCH(props.driverVersion),
@@ -154,19 +154,19 @@ void VulkanRenderer::initResources()
 
     info += QStringLiteral("Supported instance layers:\n");
     for (const QVulkanLayer &layer : inst->supportedLayers())
-        info += QString().sprintf("    %s v%u\n", layer.name.constData(), layer.version);
+        info += QString::asprintf("    %s v%u\n", layer.name.constData(), layer.version);
     info += QStringLiteral("Enabled instance layers:\n");
     for (const QByteArray &layer : inst->layers())
-        info += QString().sprintf("    %s\n", layer.constData());
+        info += QString::asprintf("    %s\n", layer.constData());
 
     info += QStringLiteral("Supported instance extensions:\n");
     for (const QVulkanExtension &ext : inst->supportedExtensions())
-        info += QString().sprintf("    %s v%u\n", ext.name.constData(), ext.version);
+        info += QString::asprintf("    %s v%u\n", ext.name.constData(), ext.version);
     info += QStringLiteral("Enabled instance extensions:\n");
     for (const QByteArray &ext : inst->extensions())
-        info += QString().sprintf("    %s\n", ext.constData());
+        info += QString::asprintf("    %s\n", ext.constData());
 
-    info += QString().sprintf("Color format: %u\nDepth-stencil format: %u\n",
+    info += QString::asprintf("Color format: %u\nDepth-stencil format: %u\n",
                               m_window->colorFormat(), m_window->depthStencilFormat());
 
     info += QStringLiteral("Supported sample counts:");
diff --git a/examples/widgets/graphicsview/diagramscene/arrow.cpp b/examples/widgets/graphicsview/diagramscene/arrow.cpp
index 88160d9399..525e0b3fbb 100644
--- a/examples/widgets/graphicsview/diagramscene/arrow.cpp
+++ b/examples/widgets/graphicsview/diagramscene/arrow.cpp
@@ -113,15 +113,13 @@ void Arrow::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
     QLineF centerLine(myStartItem->pos(), myEndItem->pos());
     QPolygonF endPolygon = myEndItem->polygon();
     QPointF p1 = endPolygon.first() + myEndItem->pos();
-    QPointF p2;
     QPointF intersectPoint;
-    QLineF polyLine;
     for (int i = 1; i < endPolygon.count(); ++i) {
-        p2 = endPolygon.at(i) + myEndItem->pos();
-        polyLine = QLineF(p1, p2);
-        QLineF::IntersectType intersectType =
-            polyLine.intersect(centerLine, &intersectPoint);
-        if (intersectType == QLineF::BoundedIntersection)
+        QPointF p2 = endPolygon.at(i) + myEndItem->pos();
+        QLineF polyLine = QLineF(p1, p2);
+        QLineF::IntersectionType intersectionType =
+            polyLine.intersects(centerLine, &intersectPoint);
+        if (intersectionType == QLineF::BoundedIntersection)
             break;
         p1 = p2;
     }
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
index 07f92f61c1..3327d4d5df 100644
--- a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
@@ -473,7 +473,7 @@ void MainWindow::createToolbars()
         fontSizeCombo->addItem(QString().setNum(i));
     QIntValidator *validator = new QIntValidator(2, 64, this);
     fontSizeCombo->setValidator(validator);
-    connect(fontSizeCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged),
+    connect(fontSizeCombo, &QComboBox::currentTextChanged,
             this, &MainWindow::fontSizeChanged);
 
     fontColorToolButton = new QToolButton;
@@ -536,7 +536,7 @@ void MainWindow::createToolbars()
     scales << tr("50%") << tr("75%") << tr("100%") << tr("125%") << tr("150%");
     sceneScaleCombo->addItems(scales);
     sceneScaleCombo->setCurrentIndex(2);
-    connect(sceneScaleCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged),
+    connect(sceneScaleCombo, &QComboBox::currentTextChanged,
             this, &MainWindow::sceneScaleChanged);
 
     pointerToolbar = addToolBar(tr("Pointer type"));
diff --git a/examples/widgets/graphicsview/embeddeddialogs/embeddeddialog.cpp b/examples/widgets/graphicsview/embeddeddialogs/embeddeddialog.cpp
index 0c831360cf..9fa24fcd17 100644
--- a/examples/widgets/graphicsview/embeddeddialogs/embeddeddialog.cpp
+++ b/examples/widgets/graphicsview/embeddeddialogs/embeddeddialog.cpp
@@ -73,7 +73,7 @@ EmbeddedDialog::EmbeddedDialog(QWidget *parent)
             this, &EmbeddedDialog::spacingChanged);
     connect(ui->fontComboBox, &QFontComboBox::currentFontChanged,
             this, &EmbeddedDialog::fontChanged);
-    connect(ui->style, QOverload<const QString &>::of(&QComboBox::activated),
+    connect(ui->style, &QComboBox::textActivated,
             this, &EmbeddedDialog::styleChanged);
 }
 
diff --git a/examples/widgets/painting/affine/xform.cpp b/examples/widgets/painting/affine/xform.cpp
index dc01acf453..482e0f3268 100644
--- a/examples/widgets/painting/affine/xform.cpp
+++ b/examples/widgets/painting/affine/xform.cpp
@@ -160,10 +160,7 @@ void XFormView::updateCtrlPoints(const QPolygonF &points)
     ctrlPoints = points;
 
     QLineF line(ctrlPoints.at(0), ctrlPoints.at(1));
-    m_rotation = line.angle(QLineF(0, 0, 1, 0));
-    if (line.dy() < 0)
-        m_rotation = 360 - m_rotation;
-
+    m_rotation = 360 - QLineF(0, 0, 1, 0).angleTo(line);
     if (trans.isNull())
         emit rotationChanged(int(m_rotation*10));
 }
diff --git a/examples/widgets/painting/gradients/gradients.cpp b/examples/widgets/painting/gradients/gradients.cpp
index 7abaef771b..8df45be8d9 100644
--- a/examples/widgets/painting/gradients/gradients.cpp
+++ b/examples/widgets/painting/gradients/gradients.cpp
@@ -564,9 +564,7 @@ void GradientRenderer::paint(QPainter *p)
 
     } else {
         QLineF l(pts.at(0), pts.at(1));
-        qreal angle = l.angle(QLineF(0, 0, 1, 0));
-        if (l.dy() > 0)
-            angle = 360 - angle;
+        qreal angle = QLineF(0, 0, 1, 0).angleTo(l);
         g = QConicalGradient(pts.at(0), angle);
     }
 
diff --git a/examples/widgets/painting/pathstroke/pathstroke.cpp b/examples/widgets/painting/pathstroke/pathstroke.cpp
index 03e55bb2a2..e4009f0b1a 100644
--- a/examples/widgets/painting/pathstroke/pathstroke.cpp
+++ b/examples/widgets/painting/pathstroke/pathstroke.cpp
@@ -611,7 +611,8 @@ bool PathStrokeRenderer::event(QEvent *e)
             case Qt::TouchPointPressed:
             {
                 // find the point, move it
-                QSet<int> activePoints = QSet<int>::fromList(m_fingerPointMapping.values());
+                const auto mappedPoints = m_fingerPointMapping.values();
+                QSet<int> activePoints = QSet<int>(mappedPoints.begin(), mappedPoints.end());
                 int activePoint = -1;
                 qreal distance = -1;
                 const int pointsCount = m_points.size();
diff --git a/examples/widgets/painting/shared/hoverpoints.cpp b/examples/widgets/painting/shared/hoverpoints.cpp
index 74c78088ad..2032fb5a2c 100644
--- a/examples/widgets/painting/shared/hoverpoints.cpp
+++ b/examples/widgets/painting/shared/hoverpoints.cpp
@@ -180,7 +180,8 @@ bool HoverPoints::eventFilter(QObject *object, QEvent *event)
                     case Qt::TouchPointPressed:
                         {
                             // find the point, move it
-                            QSet<int> activePoints = QSet<int>::fromList(m_fingerPointMapping.values());
+                            const auto mappedPoints = m_fingerPointMapping.values();
+                            QSet<int> activePoints = QSet<int>(mappedPoints.begin(), mappedPoints.end());
                             int activePoint = -1;
                             qreal distance = -1;
                             const int pointsCount = m_points.size();
diff --git a/examples/widgets/qnx/foreignwindows/collector.cpp b/examples/widgets/qnx/foreignwindows/collector.cpp
new file mode 100644
index 0000000000..4b9e774945
--- /dev/null
+++ b/examples/widgets/qnx/foreignwindows/collector.cpp
@@ -0,0 +1,176 @@
+/***************************************************************************
+**
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QDebug>
+#include <QHBoxLayout>
+#include <QWindow>
+
+#include <algorithm>
+#include <screen/screen.h>
+
+#include "collector.h"
+
+constexpr int MANAGER_EVENT_NAME_SUGGESTION = 9999;
+
+Collector::Collector(QWidget *parent)
+    : QWidget(parent)
+{
+    QApplication::instance()->installNativeEventFilter(this);
+
+    QLayout *layout = new QHBoxLayout(this);
+    setLayout(layout);
+}
+
+Collector::~Collector()
+{
+    QApplication::instance()->removeNativeEventFilter(this);
+}
+
+bool Collector::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
+{
+    Q_UNUSED(result);
+
+    if (eventType == QByteArrayLiteral("screen_event_t"))
+        return filterQnxScreenEvent(static_cast<screen_event_t>(message));
+
+    return false;
+}
+
+bool Collector::filterQnxScreenEvent(screen_event_t event)
+{
+    int objectType = SCREEN_OBJECT_TYPE_CONTEXT;
+    screen_get_event_property_iv(event, SCREEN_PROPERTY_OBJECT_TYPE, &objectType);
+
+    if (objectType == SCREEN_OBJECT_TYPE_WINDOW)
+        return filterQnxScreenWindowEvent(event);
+
+    return false;
+}
+
+bool Collector::filterQnxScreenWindowEvent(screen_event_t event)
+{
+    int eventType = SCREEN_EVENT_NONE;
+    screen_get_event_property_iv(event, SCREEN_PROPERTY_TYPE, &eventType);
+    screen_window_t window = nullptr;
+    screen_get_event_property_pv(event,
+                                 SCREEN_PROPERTY_WINDOW,
+                                 reinterpret_cast<void **>(&window));
+
+    if (eventType == SCREEN_EVENT_CREATE)
+        return filterQnxScreenWindowCreateEvent(window, event);
+    else if (eventType == SCREEN_EVENT_CLOSE)
+        return filterQnxScreenWindowCloseEvent(window, event);
+    else if (eventType == SCREEN_EVENT_MANAGER)
+        return filterQnxScreenWindowManagerEvent(window, event);
+
+    return false;
+}
+
+bool Collector::filterQnxScreenWindowCreateEvent(screen_window_t window, screen_event_t event)
+{
+    Q_UNUSED(event);
+    WId winId = reinterpret_cast<WId>(window);
+
+    QByteArray parentGroup(256, 0);
+    screen_get_window_property_cv(window,
+            SCREEN_PROPERTY_PARENT,
+            parentGroup.length(),
+            parentGroup.data());
+    parentGroup.resize(strlen(parentGroup.constData()));
+
+    QByteArray group(256, 0);
+    screen_get_window_property_cv(reinterpret_cast<screen_window_t>(windowHandle()->winId()),
+            SCREEN_PROPERTY_GROUP,
+            group.length(),
+            group.data());
+    group.resize(strlen(group.constData()));
+
+    if (parentGroup != group)
+        return false;
+
+    Collectible collectible;
+    collectible.window = QWindow::fromWinId(winId);
+    collectible.widget = QWidget::createWindowContainer(collectible.window, this);
+    layout()->addWidget(collectible.widget);
+    m_collectibles.append(collectible);
+
+    return false;
+}
+
+bool Collector::filterQnxScreenWindowCloseEvent(screen_window_t window, screen_event_t event)
+{
+    Q_UNUSED(event);
+    WId winId = reinterpret_cast<WId>(window);
+    auto it = std::find_if(m_collectibles.begin(), m_collectibles.end(),
+                           [winId] (const Collectible &collectible) {
+                               return collectible.window->winId() == winId;
+                           });
+    if (it != m_collectibles.end()) {
+        delete it->widget;
+        // it->window is deleted by it->widget.
+        m_collectibles.erase(it);
+    }
+
+    return false;
+}
+
+bool Collector::filterQnxScreenWindowManagerEvent(screen_window_t window, screen_event_t event)
+{
+    int managerEventType = 0;
+    screen_get_event_property_iv(event, SCREEN_PROPERTY_SUBTYPE, &managerEventType);
+
+    if (managerEventType == MANAGER_EVENT_NAME_SUGGESTION)
+        return filterQnxScreenWindowManagerNameEvent(window, event);
+
+    return false;
+}
+
+bool Collector::filterQnxScreenWindowManagerNameEvent(screen_window_t window, screen_event_t event)
+{
+    Q_UNUSED(window);
+    int dataSize = 0;
+    screen_get_event_property_iv(event, SCREEN_PROPERTY_SIZE, &dataSize);
+    if (dataSize > 0) {
+        QByteArray data(dataSize, 0);
+        screen_get_event_property_cv(event, SCREEN_PROPERTY_USER_DATA, data.size(), data.data());
+    }
+
+    return false;
+}
diff --git a/src/plugins/platforms/mirclient/qmirclientscreenobserver.h b/examples/widgets/qnx/foreignwindows/collector.h
index ad927319c1..2b1ed499ff 100644
--- a/src/plugins/platforms/mirclient/qmirclientscreenobserver.h
+++ b/examples/widgets/qnx/foreignwindows/collector.h
@@ -1,6 +1,6 @@
-/****************************************************************************
+/***************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins of the Qt Toolkit.
@@ -37,42 +37,39 @@
 **
 ****************************************************************************/
 
+#ifndef COLLECTOR_H_
+#define COLLECTOR_H_
 
-#ifndef QMIRCLIENTSCREENOBSERVER_H
-#define QMIRCLIENTSCREENOBSERVER_H
+#include <QAbstractNativeEventFilter>
+#include <QWidget>
+#include <QVector>
 
-#include <QObject>
+#include <screen/screen.h>
 
-#include <mir_toolkit/mir_connection.h>
-
-class QMirClientScreen;
-
-class QMirClientScreenObserver : public QObject
+class Collector : public QWidget, public QAbstractNativeEventFilter
 {
-    Q_OBJECT
-
 public:
-    QMirClientScreenObserver(MirConnection *connection);
-
-    QList<QMirClientScreen*> screens() const { return mScreenList; }
-    QMirClientScreen *findScreenWithId(int id);
+    explicit Collector(QWidget *parent = nullptr);
+    ~Collector() override;
 
-    void handleScreenPropertiesChange(QMirClientScreen *screen, int dpi,
-                                      MirFormFactor formFactor, float scale);
-
-Q_SIGNALS:
-    void screenAdded(QMirClientScreen *screen);
-    void screenRemoved(QMirClientScreen *screen);
-
-private Q_SLOTS:
-    void update();
+    bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) override;
 
 private:
-    QMirClientScreen *findScreenWithId(const QList<QMirClientScreen *> &list, int id);
-    void removeScreen(QMirClientScreen *screen);
+    struct Collectible
+    {
+        QWindow *window;
+        QWidget *widget;
+    };
+    QVector<Collectible> m_collectibles;
 
-    MirConnection *mMirConnection;
-    QList<QMirClientScreen*> mScreenList;
+    bool filterQnxScreenEvent(screen_event_t event);
+    bool filterQnxScreenWindowEvent(screen_event_t event);
+    bool filterQnxScreenWindowCreateEvent(screen_window_t window, screen_event_t event);
+    bool filterQnxScreenWindowCloseEvent(screen_window_t window, screen_event_t event);
+    bool filterQnxScreenWindowManagerEvent(screen_window_t window, screen_event_t event);
+    bool filterQnxScreenWindowManagerNameEvent(screen_window_t window,
+                                               screen_event_t event);
 };
 
-#endif // QMIRCLIENTSCREENOBSERVER_H
+
+#endif /* COLLECTOR_H_ */
diff --git a/examples/widgets/qnx/foreignwindows/foreignwindows.pro b/examples/widgets/qnx/foreignwindows/foreignwindows.pro
new file mode 100644
index 0000000000..09ff8633eb
--- /dev/null
+++ b/examples/widgets/qnx/foreignwindows/foreignwindows.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+
+HEADERS += collector.h
+SOURCES += main.cpp collector.cpp
+LIBS += -lscreen
+
+QT += widgets
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/qnx/foreignwindows
+INSTALLS += target
diff --git a/src/plugins/platforms/mirclient/qmirclientdesktopwindow.cpp b/examples/widgets/qnx/foreignwindows/main.cpp
index 123f805c25..128e93cf88 100644
--- a/src/plugins/platforms/mirclient/qmirclientdesktopwindow.cpp
+++ b/examples/widgets/qnx/foreignwindows/main.cpp
@@ -1,6 +1,6 @@
-/****************************************************************************
+/***************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins of the Qt Toolkit.
@@ -37,14 +37,17 @@
 **
 ****************************************************************************/
 
+#include <QApplication>
 
-#include "qmirclientdesktopwindow.h"
+#include "collector.h"
 
-// local
-#include "qmirclientlogging.h"
-
-QMirClientDesktopWindow::QMirClientDesktopWindow(QWindow *window)
-    : QPlatformWindow(window)
+int main(int argc, char *argv[])
 {
-    qCDebug(mirclient, "QMirClientDesktopWindow(window=%p)", window);
+    QApplication app(argc, argv);
+
+    Collector collector;
+    collector.resize(640, 480);
+    collector.show();
+
+    return app.exec();
 }
diff --git a/examples/widgets/richtext/textedit/example.md b/examples/widgets/richtext/textedit/example.md
new file mode 100644
index 0000000000..a16a9197b4
--- /dev/null
+++ b/examples/widgets/richtext/textedit/example.md
@@ -0,0 +1,102 @@
+# QTextEdit
+
+The QTextEdit widget is an advanced editor that supports formatted rich text.
+It can be used to display HTML and other rich document formats. Internally,
+QTextEdit uses the QTextDocument class to describe both the high-level
+structure of each document and the low-level formatting of paragraphs.
+
+If you are viewing this document in the textedit example, you can edit this
+document to explore Qt's rich text editing features. We have included some
+comments in each of the following sections to encourage you to experiment.
+
+## Font and Paragraph Styles
+
+QTextEdit supports **bold**, *italic*, &amp; ~~strikethrough~~ font styles, and
+can display <span style="font-size:10pt; font-weight:600;
+color:#00007f;">multicolored</span> text. Font families such as <span
+style="font-family:Times New Roman">Times New Roman</span> and `Courier`
+can also be used directly. *If you place the cursor in a region of styled text,
+the controls in the tool bars will change to reflect the current style.*
+
+Paragraphs can be formatted so that the text is left-aligned, right-aligned,
+centered, or fully justified.
+
+*Try changing the alignment of some text and resize the editor to see how the
+text layout changes.*
+
+## Lists
+
+Different kinds of lists can be included in rich text documents. Standard
+bullet lists can be nested, using different symbols for each level of the list:
+
+- Disc symbols are typically used for top-level list items.
+  * Circle symbols can be used to distinguish between items in lower-level
+    lists.
+    + Square symbols provide a reasonable alternative to discs and circles.
+
+Ordered lists can be created that can be used for tables of contents. Different
+characters can be used to enumerate items, and we can use both Roman and Arabic
+numerals in the same list structure:
+
+1. Introduction
+2. Qt Tools
+    1) Qt Assistant
+    2) Qt Designer
+        1. Form Editor
+        2. Component Architecture
+    3) Qt Linguist
+
+The list will automatically be renumbered if you add or remove items. *Try
+adding new sections to the above list or removing existing item to see the
+numbers change.*
+
+Task lists can be used to track progress on projects:
+
+- [ ] This is not yet done
+- This is just a bullet point
+- [x] This is done
+
+## Images
+
+Inline images are treated like ordinary ranges of characters in the text
+editor, so they flow with the surrounding text. Images can also be selected in
+the same way as text, making it easy to cut, copy, and paste them.
+
+![logo](images/logo32.png "logo") *Try to select this image by clicking and
+dragging over it with the mouse, or use the text cursor to select it by holding
+down Shift and using the arrow keys. You can then cut or copy it, and paste it
+into different parts of this document.*
+
+## Tables
+
+QTextEdit can arrange and format tables, supporting features such as row and
+column spans, text formatting within cells, and size constraints for columns.
+
+|               | Development Tools | Programming Techniques | Graphical User Interfaces |
+| ------------: | ----------------- | ---------------------- | ------------------------- |
+| 9:00 - 11:00  |                     Introduction to Qt                               |||
+| 11:00 - 13:00 | Using qmake       | Object-oriented Programming | Layouts in Qt        |
+| 13:00 - 15:00 | Qt Designer Tutorial | Extreme Programming | Writing Custom Styles     |
+| 15:00 - 17:00 | Qt Linguist and Internationalization | &nbsp; | &nbsp; |
+
+*Try adding text to the cells in the table and experiment with the alignment of
+the paragraphs.*
+
+## Hyperlinks
+
+QTextEdit is designed to support hyperlinks between documents, and this feature
+is used extensively in 
+[Qt Assistant](http://doc.qt.io/qt-5/qtassistant-index.html). Hyperlinks are
+automatically created when an HTML file is imported into an editor. Since the
+rich text framework supports hyperlinks natively, they can also be created
+programatically.
+
+## Undo and Redo
+
+Full support for undo and redo operations is built into QTextEdit and the
+underlying rich text framework. Operations on a document can be packaged
+together to make editing a more comfortable experience for the user.
+
+*Try making changes to this document and press `Ctrl+Z` to undo them. You can
+always recover the original contents of the document.*
+
diff --git a/examples/widgets/richtext/textedit/images/mac/checkbox-checked.png b/examples/widgets/richtext/textedit/images/mac/checkbox-checked.png
new file mode 100644
index 0000000000..a072d7fb5c
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/mac/checkbox-checked.png
diff --git a/examples/widgets/richtext/textedit/images/mac/checkbox.png b/examples/widgets/richtext/textedit/images/mac/checkbox.png
new file mode 100644
index 0000000000..4064909712
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/mac/checkbox.png
diff --git a/examples/widgets/richtext/textedit/images/mac/format-indent-less.png b/examples/widgets/richtext/textedit/images/mac/format-indent-less.png
new file mode 100644
index 0000000000..e38074e78b
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/mac/format-indent-less.png
diff --git a/examples/widgets/richtext/textedit/images/mac/format-indent-more.png b/examples/widgets/richtext/textedit/images/mac/format-indent-more.png
new file mode 100644
index 0000000000..1bdeabd354
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/mac/format-indent-more.png
diff --git a/examples/widgets/richtext/textedit/images/win/checkbox-checked.png b/examples/widgets/richtext/textedit/images/win/checkbox-checked.png
new file mode 100644
index 0000000000..a072d7fb5c
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/win/checkbox-checked.png
diff --git a/examples/widgets/richtext/textedit/images/win/checkbox.png b/examples/widgets/richtext/textedit/images/win/checkbox.png
new file mode 100644
index 0000000000..4064909712
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/win/checkbox.png
diff --git a/examples/widgets/richtext/textedit/images/win/format-indent-less.png b/examples/widgets/richtext/textedit/images/win/format-indent-less.png
new file mode 100644
index 0000000000..e38074e78b
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/win/format-indent-less.png
diff --git a/examples/widgets/richtext/textedit/images/win/format-indent-more.png b/examples/widgets/richtext/textedit/images/win/format-indent-more.png
new file mode 100644
index 0000000000..1bdeabd354
--- /dev/null
+++ b/examples/widgets/richtext/textedit/images/win/format-indent-more.png
diff --git a/examples/widgets/richtext/textedit/textedit.cpp b/examples/widgets/richtext/textedit/textedit.cpp
index 00ea0325dc..996bb8e0a4 100644
--- a/examples/widgets/richtext/textedit/textedit.cpp
+++ b/examples/widgets/richtext/textedit/textedit.cpp
@@ -71,6 +71,7 @@
 #include <QCloseEvent>
 #include <QMessageBox>
 #include <QMimeData>
+#include <QMimeDatabase>
 #if defined(QT_PRINTSUPPORT_LIB)
 #include <QtPrintSupport/qtprintsupportglobal.h>
 #if QT_CONFIG(printer)
@@ -316,6 +317,14 @@ void TextEdit::setupTextActions()
     actionAlignJustify->setShortcut(Qt::CTRL + Qt::Key_J);
     actionAlignJustify->setCheckable(true);
     actionAlignJustify->setPriority(QAction::LowPriority);
+    const QIcon indentMoreIcon = QIcon::fromTheme("format-indent-more", QIcon(rsrcPath + "/format-indent-more.png"));
+    actionIndentMore = menu->addAction(indentMoreIcon, tr("&Indent"), this, &TextEdit::indent);
+    actionIndentMore->setShortcut(Qt::CTRL + Qt::Key_BracketRight);
+    actionIndentMore->setPriority(QAction::LowPriority);
+    const QIcon indentLessIcon = QIcon::fromTheme("format-indent-less", QIcon(rsrcPath + "/format-indent-less.png"));
+    actionIndentLess = menu->addAction(indentLessIcon, tr("&Unindent"), this, &TextEdit::unindent);
+    actionIndentLess->setShortcut(Qt::CTRL + Qt::Key_BracketLeft);
+    actionIndentLess->setPriority(QAction::LowPriority);
 
     // Make sure the alignLeft  is always left of the alignRight
     QActionGroup *alignGroup = new QActionGroup(this);
@@ -334,6 +343,10 @@ void TextEdit::setupTextActions()
 
     tb->addActions(alignGroup->actions());
     menu->addActions(alignGroup->actions());
+    tb->addAction(actionIndentMore);
+    tb->addAction(actionIndentLess);
+    menu->addAction(actionIndentMore);
+    menu->addAction(actionIndentLess);
 
     menu->addSeparator();
 
@@ -342,6 +355,15 @@ void TextEdit::setupTextActions()
     actionTextColor = menu->addAction(pix, tr("&Color..."), this, &TextEdit::textColor);
     tb->addAction(actionTextColor);
 
+    menu->addSeparator();
+
+    const QIcon checkboxIcon = QIcon::fromTheme("status-checkbox-checked", QIcon(rsrcPath + "/checkbox-checked.png"));
+    actionToggleCheckState = menu->addAction(checkboxIcon, tr("Chec&ked"), this, &TextEdit::setChecked);
+    actionToggleCheckState->setShortcut(Qt::CTRL + Qt::Key_K);
+    actionToggleCheckState->setCheckable(true);
+    actionToggleCheckState->setPriority(QAction::LowPriority);
+    tb->addAction(actionToggleCheckState);
+
     tb = addToolBar(tr("Format Actions"));
     tb->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
     addToolBarBreak(Qt::TopToolBarArea);
@@ -353,6 +375,8 @@ void TextEdit::setupTextActions()
     comboStyle->addItem("Bullet List (Disc)");
     comboStyle->addItem("Bullet List (Circle)");
     comboStyle->addItem("Bullet List (Square)");
+    comboStyle->addItem("Task List (Unchecked)");
+    comboStyle->addItem("Task List (Checked)");
     comboStyle->addItem("Ordered List (Decimal)");
     comboStyle->addItem("Ordered List (Alpha lower)");
     comboStyle->addItem("Ordered List (Alpha upper)");
@@ -369,7 +393,7 @@ void TextEdit::setupTextActions()
 
     comboFont = new QFontComboBox(tb);
     tb->addWidget(comboFont);
-    connect(comboFont, QOverload<const QString &>::of(&QComboBox::activated), this, &TextEdit::textFamily);
+    connect(comboFont, &QComboBox::textActivated, this, &TextEdit::textFamily);
 
     comboSize = new QComboBox(tb);
     comboSize->setObjectName("comboSize");
@@ -381,7 +405,7 @@ void TextEdit::setupTextActions()
         comboSize->addItem(QString::number(size));
     comboSize->setCurrentIndex(standardSizes.indexOf(QApplication::font().pointSize()));
 
-    connect(comboSize, QOverload<const QString &>::of(&QComboBox::activated), this, &TextEdit::textSize);
+    connect(comboSize, &QComboBox::textActivated, this, &TextEdit::textSize);
 }
 
 bool TextEdit::load(const QString &f)
@@ -395,11 +419,18 @@ bool TextEdit::load(const QString &f)
     QByteArray data = file.readAll();
     QTextCodec *codec = Qt::codecForHtml(data);
     QString str = codec->toUnicode(data);
+    QUrl baseUrl = (f.front() == QLatin1Char(':') ? QUrl(f) : QUrl::fromLocalFile(f)).adjusted(QUrl::RemoveFilename);
+    textEdit->document()->setBaseUrl(baseUrl);
     if (Qt::mightBeRichText(str)) {
         textEdit->setHtml(str);
     } else {
-        str = QString::fromLocal8Bit(data);
-        textEdit->setPlainText(str);
+#if QT_CONFIG(textmarkdownreader)
+        QMimeDatabase db;
+        if (db.mimeTypeForFileNameAndData(f, data).name() == QLatin1String("text/markdown"))
+            textEdit->setMarkdown(str);
+        else
+#endif
+            textEdit->setPlainText(QString::fromLocal8Bit(data));
     }
 
     setCurrentFileName(f);
@@ -451,7 +482,15 @@ void TextEdit::fileOpen()
     QFileDialog fileDialog(this, tr("Open File..."));
     fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
     fileDialog.setFileMode(QFileDialog::ExistingFile);
-    fileDialog.setMimeTypeFilters(QStringList() << "text/html" << "text/plain");
+    fileDialog.setMimeTypeFilters(QStringList()
+#if QT_CONFIG(texthtmlparser)
+                                  << "text/html"
+#endif
+#if QT_CONFIG(textmarkdownreader)
+
+                                  << "text/markdown"
+#endif
+                                  << "text/plain");
     if (fileDialog.exec() != QDialog::Accepted)
         return;
     const QString fn = fileDialog.selectedFiles().first();
@@ -485,9 +524,18 @@ bool TextEdit::fileSaveAs()
     QFileDialog fileDialog(this, tr("Save as..."));
     fileDialog.setAcceptMode(QFileDialog::AcceptSave);
     QStringList mimeTypes;
-    mimeTypes << "application/vnd.oasis.opendocument.text" << "text/html" << "text/plain";
+    mimeTypes << "text/plain"
+#if QT_CONFIG(textodfwriter)
+              << "application/vnd.oasis.opendocument.text"
+#endif
+#if QT_CONFIG(textmarkdownwriter)
+              << "text/markdown"
+#endif
+              << "text/html";
     fileDialog.setMimeTypeFilters(mimeTypes);
+#if QT_CONFIG(textodfwriter)
     fileDialog.setDefaultSuffix("odt");
+#endif
     if (fileDialog.exec() != QDialog::Accepted)
         return false;
     const QString fn = fileDialog.selectedFiles().first();
@@ -592,6 +640,7 @@ void TextEdit::textStyle(int styleIndex)
 {
     QTextCursor cursor = textEdit->textCursor();
     QTextListFormat::Style style = QTextListFormat::ListStyleUndefined;
+    QTextBlockFormat::MarkerType marker = QTextBlockFormat::NoMarker;
 
     switch (styleIndex) {
     case 1:
@@ -604,18 +653,32 @@ void TextEdit::textStyle(int styleIndex)
         style = QTextListFormat::ListSquare;
         break;
     case 4:
-        style = QTextListFormat::ListDecimal;
+        if (cursor.currentList())
+            style = cursor.currentList()->format().style();
+        else
+            style = QTextListFormat::ListDisc;
+        marker = QTextBlockFormat::Unchecked;
         break;
     case 5:
-        style = QTextListFormat::ListLowerAlpha;
+        if (cursor.currentList())
+            style = cursor.currentList()->format().style();
+        else
+            style = QTextListFormat::ListDisc;
+        marker = QTextBlockFormat::Checked;
         break;
     case 6:
-        style = QTextListFormat::ListUpperAlpha;
+        style = QTextListFormat::ListDecimal;
         break;
     case 7:
-        style = QTextListFormat::ListLowerRoman;
+        style = QTextListFormat::ListLowerAlpha;
         break;
     case 8:
+        style = QTextListFormat::ListUpperAlpha;
+        break;
+    case 9:
+        style = QTextListFormat::ListLowerRoman;
+        break;
+    case 10:
         style = QTextListFormat::ListUpperRoman;
         break;
     default:
@@ -628,7 +691,7 @@ void TextEdit::textStyle(int styleIndex)
 
     if (style == QTextListFormat::ListStyleUndefined) {
         blockFmt.setObjectIndex(-1);
-        int headingLevel = styleIndex >= 9 ? styleIndex - 9 + 1 : 0; // H1 to H6, or Standard
+        int headingLevel = styleIndex >= 11 ? styleIndex - 11 + 1 : 0; // H1 to H6, or Standard
         blockFmt.setHeadingLevel(headingLevel);
         cursor.setBlockFormat(blockFmt);
 
@@ -640,6 +703,8 @@ void TextEdit::textStyle(int styleIndex)
         cursor.mergeCharFormat(fmt);
         textEdit->mergeCurrentCharFormat(fmt);
     } else {
+        blockFmt.setMarker(marker);
+        cursor.setBlockFormat(blockFmt);
         QTextListFormat listFmt;
         if (cursor.currentList()) {
             listFmt = cursor.currentList()->format();
@@ -678,6 +743,45 @@ void TextEdit::textAlign(QAction *a)
         textEdit->setAlignment(Qt::AlignJustify);
 }
 
+void TextEdit::setChecked(bool checked)
+{
+    textStyle(checked ? 5 : 4);
+}
+
+void TextEdit::indent()
+{
+    modifyIndentation(1);
+}
+
+void TextEdit::unindent()
+{
+    modifyIndentation(-1);
+}
+
+void TextEdit::modifyIndentation(int amount)
+{
+    QTextCursor cursor = textEdit->textCursor();
+    cursor.beginEditBlock();
+    if (cursor.currentList()) {
+        QTextListFormat listFmt = cursor.currentList()->format();
+        // See whether the line above is the list we want to move this item into,
+        // or whether we need a new list.
+        QTextCursor above(cursor);
+        above.movePosition(QTextCursor::Up);
+        if (above.currentList() && listFmt.indent() + amount == above.currentList()->format().indent()) {
+            above.currentList()->add(cursor.block());
+        } else {
+            listFmt.setIndent(listFmt.indent() + amount);
+            cursor.createList(listFmt);
+        }
+    } else {
+        QTextBlockFormat blockFmt = cursor.blockFormat();
+        blockFmt.setIndent(blockFmt.indent() + amount);
+        cursor.setBlockFormat(blockFmt);
+    }
+    cursor.endEditBlock();
+}
+
 void TextEdit::currentCharFormatChanged(const QTextCharFormat &format)
 {
     fontChanged(format.font());
@@ -700,27 +804,40 @@ void TextEdit::cursorPositionChanged()
             comboStyle->setCurrentIndex(3);
             break;
         case QTextListFormat::ListDecimal:
-            comboStyle->setCurrentIndex(4);
+            comboStyle->setCurrentIndex(6);
             break;
         case QTextListFormat::ListLowerAlpha:
-            comboStyle->setCurrentIndex(5);
+            comboStyle->setCurrentIndex(7);
             break;
         case QTextListFormat::ListUpperAlpha:
-            comboStyle->setCurrentIndex(6);
+            comboStyle->setCurrentIndex(8);
             break;
         case QTextListFormat::ListLowerRoman:
-            comboStyle->setCurrentIndex(7);
+            comboStyle->setCurrentIndex(9);
             break;
         case QTextListFormat::ListUpperRoman:
-            comboStyle->setCurrentIndex(8);
+            comboStyle->setCurrentIndex(10);
             break;
         default:
             comboStyle->setCurrentIndex(-1);
             break;
         }
+        switch (textEdit->textCursor().block().blockFormat().marker()) {
+        case QTextBlockFormat::NoMarker:
+            actionToggleCheckState->setChecked(false);
+            break;
+        case QTextBlockFormat::Unchecked:
+            comboStyle->setCurrentIndex(4);
+            actionToggleCheckState->setChecked(false);
+            break;
+        case QTextBlockFormat::Checked:
+            comboStyle->setCurrentIndex(5);
+            actionToggleCheckState->setChecked(true);
+            break;
+        }
     } else {
         int headingLevel = textEdit->textCursor().blockFormat().headingLevel();
-        comboStyle->setCurrentIndex(headingLevel ? headingLevel + 8 : 0);
+        comboStyle->setCurrentIndex(headingLevel ? headingLevel + 10 : 0);
     }
 }
 
diff --git a/examples/widgets/richtext/textedit/textedit.h b/examples/widgets/richtext/textedit/textedit.h
index ae0b13a4cc..9e50166c6f 100644
--- a/examples/widgets/richtext/textedit/textedit.h
+++ b/examples/widgets/richtext/textedit/textedit.h
@@ -96,6 +96,9 @@ private slots:
     void textStyle(int styleIndex);
     void textColor();
     void textAlign(QAction *a);
+    void setChecked(bool checked);
+    void indent();
+    void unindent();
 
     void currentCharFormatChanged(const QTextCharFormat &format);
     void cursorPositionChanged();
@@ -110,6 +113,7 @@ private:
     void setupTextActions();
     bool maybeSave();
     void setCurrentFileName(const QString &fileName);
+    void modifyIndentation(int amount);
 
     void mergeFormatOnWordOrSelection(const QTextCharFormat &format);
     void fontChanged(const QFont &f);
@@ -125,6 +129,9 @@ private:
     QAction *actionAlignCenter;
     QAction *actionAlignRight;
     QAction *actionAlignJustify;
+    QAction *actionIndentLess;
+    QAction *actionIndentMore;
+    QAction *actionToggleCheckState;
     QAction *actionUndo;
     QAction *actionRedo;
 #ifndef QT_NO_CLIPBOARD
diff --git a/examples/widgets/richtext/textedit/textedit.qrc b/examples/widgets/richtext/textedit/textedit.qrc
index 7d6efd7d67..1641acc207 100644
--- a/examples/widgets/richtext/textedit/textedit.qrc
+++ b/examples/widgets/richtext/textedit/textedit.qrc
@@ -1,6 +1,8 @@
 <!DOCTYPE RCC><RCC version="1.0">
 <qresource prefix="/">
   <file>images/logo32.png</file>
+  <file>images/mac/checkbox.png</file>
+  <file>images/mac/checkbox-checked.png</file>
   <file>images/mac/editcopy.png</file>
   <file>images/mac/editcut.png</file>
   <file>images/mac/editpaste.png</file>
@@ -11,6 +13,8 @@
   <file>images/mac/fileopen.png</file>
   <file>images/mac/fileprint.png</file>
   <file>images/mac/filesave.png</file>
+  <file>images/mac/format-indent-less.png</file>
+  <file>images/mac/format-indent-more.png</file>
   <file>images/mac/textbold.png</file>
   <file>images/mac/textcenter.png</file>
   <file>images/mac/textitalic.png</file>
@@ -20,6 +24,8 @@
   <file>images/mac/textunder.png</file>
   <file>images/mac/zoomin.png</file>
   <file>images/mac/zoomout.png</file>
+  <file>images/win/checkbox.png</file>
+  <file>images/win/checkbox-checked.png</file>
   <file>images/win/editcopy.png</file>
   <file>images/win/editcut.png</file>
   <file>images/win/editpaste.png</file>
@@ -30,6 +36,8 @@
   <file>images/win/fileopen.png</file>
   <file>images/win/fileprint.png</file>
   <file>images/win/filesave.png</file>
+  <file>images/win/format-indent-less.png</file>
+  <file>images/win/format-indent-more.png</file>
   <file>images/win/textbold.png</file>
   <file>images/win/textcenter.png</file>
   <file>images/win/textitalic.png</file>
diff --git a/examples/widgets/statemachine/factorial/main.cpp b/examples/widgets/statemachine/factorial/main.cpp
index 2d25822828..e9431596fe 100644
--- a/examples/widgets/statemachine/factorial/main.cpp
+++ b/examples/widgets/statemachine/factorial/main.cpp
@@ -49,7 +49,6 @@
 ****************************************************************************/
 
 #include <QtCore>
-#include <stdio.h>
 
 //! [0]
 class Factorial : public QObject
@@ -143,7 +142,7 @@ public:
 
     void onTransition(QEvent *) override
     {
-        fprintf(stdout, "%d\n", m_fact->property("fac").toInt());
+        qInfo() << m_fact->property("fac").toInt();
     }
 
 private:
diff --git a/examples/widgets/tools/plugandpaint/app/interfaces.h b/examples/widgets/tools/plugandpaint/app/interfaces.h
index a1e91e13ff..705e578809 100644
--- a/examples/widgets/tools/plugandpaint/app/interfaces.h
+++ b/examples/widgets/tools/plugandpaint/app/interfaces.h
@@ -68,7 +68,7 @@ QT_END_NAMESPACE
 class BrushInterface
 {
 public:
-    virtual ~BrushInterface() {}
+    virtual ~BrushInterface() = default;
 
     virtual QStringList brushes() const = 0;
     virtual QRect mousePress(const QString &brush, QPainter &painter,
@@ -84,7 +84,7 @@ public:
 class ShapeInterface
 {
 public:
-    virtual ~ShapeInterface() {}
+    virtual ~ShapeInterface() = default;
 
     virtual QStringList shapes() const = 0;
     virtual QPainterPath generateShape(const QString &shape,
@@ -96,7 +96,7 @@ public:
 class FilterInterface
 {
 public:
-    virtual ~FilterInterface() {}
+    virtual ~FilterInterface() = default;
 
     virtual QStringList filters() const = 0;
     virtual QImage filterImage(const QString &filter, const QImage &image,
diff --git a/examples/widgets/widgets/charactermap/mainwindow.cpp b/examples/widgets/widgets/charactermap/mainwindow.cpp
index e84ded5afb..77aad145e7 100644
--- a/examples/widgets/widgets/charactermap/mainwindow.cpp
+++ b/examples/widgets/widgets/charactermap/mainwindow.cpp
@@ -114,9 +114,9 @@ MainWindow::MainWindow(QWidget *parent)
             this, &MainWindow::findSizes);
     connect(fontCombo, &QFontComboBox::currentFontChanged,
             characterWidget, &CharacterWidget::updateFont);
-    connect(sizeCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged),
+    connect(sizeCombo, &QComboBox::currentTextChanged,
             characterWidget, &CharacterWidget::updateSize);
-    connect(styleCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged),
+    connect(styleCombo, &QComboBox::currentTextChanged,
             characterWidget, &CharacterWidget::updateStyle);
 //! [4] //! [5]
     connect(characterWidget, &CharacterWidget::characterSelected,
diff --git a/examples/widgets/widgets/icons/iconpreviewarea.cpp b/examples/widgets/widgets/icons/iconpreviewarea.cpp
index 1a2f514ba8..7a73a137cd 100644
--- a/examples/widgets/widgets/icons/iconpreviewarea.cpp
+++ b/examples/widgets/widgets/icons/iconpreviewarea.cpp
@@ -79,8 +79,6 @@ IconPreviewArea::IconPreviewArea(QWidget *parent)
 }
 //! [0]
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-
 //! [42]
 QVector<QIcon::Mode> IconPreviewArea::iconModes()
 {
@@ -107,44 +105,6 @@ QStringList IconPreviewArea::iconStateNames()
 }
 //! [42]
 
-#else // Q_COMPILER_INITIALIZER_LISTS
-
-//! [43]
-QVector<QIcon::Mode> IconPreviewArea::iconModes()
-{
-    static QVector<QIcon::Mode> result;
-    if (result.isEmpty())
-        result << QIcon::Normal << QIcon::Active << QIcon::Disabled << QIcon::Selected;
-    return result;
-}
-//! [43]
-
-QVector<QIcon::State> IconPreviewArea::iconStates()
-{
-    static QVector<QIcon::State> result;
-    if (result.isEmpty())
-        result << QIcon::Off << QIcon::On;
-    return result;
-}
-
-QStringList IconPreviewArea::iconModeNames()
-{
-    static QStringList result;
-    if (result.isEmpty())
-        result << tr("Normal") << tr("Active") << tr("Disabled") << tr("Selected");
-    return result;
-}
-
-QStringList IconPreviewArea::iconStateNames()
-{
-    static QStringList result;
-    if (result.isEmpty())
-        result << tr("Off") << tr("On");
-    return result;
-}
-
-#endif // !Q_COMPILER_INITIALIZER_LISTS
-
 //! [1]
 void IconPreviewArea::setIcon(const QIcon &icon)
 {
diff --git a/examples/widgets/widgets/imageviewer/imageviewer.cpp b/examples/widgets/widgets/imageviewer/imageviewer.cpp
index fed551dade..2fc8ff63de 100644
--- a/examples/widgets/widgets/imageviewer/imageviewer.cpp
+++ b/examples/widgets/widgets/imageviewer/imageviewer.cpp
@@ -106,6 +106,8 @@ bool ImageViewer::loadFile(const QString &fileName)
 void ImageViewer::setImage(const QImage &newImage)
 {
     image = newImage;
+    if (image.colorSpace().isValid())
+        image.convertToColorSpace(QColorSpace::SRgb);
     imageLabel->setPixmap(QPixmap::fromImage(image));
 //! [4]
     scaleFactor = 1.0;
diff --git a/examples/widgets/widgets/spinboxes/window.cpp b/examples/widgets/widgets/spinboxes/window.cpp
index fd7c5b527e..82e19527a7 100644
--- a/examples/widgets/widgets/spinboxes/window.cpp
+++ b/examples/widgets/widgets/spinboxes/window.cpp
@@ -176,7 +176,7 @@ void Window::createDateTimeEdits()
     formatComboBox->addItem("hh:mm ap");
 //! [9] //! [10]
 
-    connect(formatComboBox, QOverload<const QString &>::of(&QComboBox::activated),
+    connect(formatComboBox, &QComboBox::textActivated,
             this, &Window::setFormatString);
 //! [10]
 
diff --git a/examples/widgets/widgets/styles/widgetgallery.cpp b/examples/widgets/widgets/styles/widgetgallery.cpp
index f0a0336a94..34c010df74 100644
--- a/examples/widgets/widgets/styles/widgetgallery.cpp
+++ b/examples/widgets/widgets/styles/widgetgallery.cpp
@@ -79,7 +79,7 @@ WidgetGallery::WidgetGallery(QWidget *parent)
 //! [0]
 
 //! [1]
-    connect(styleComboBox, QOverload<const QString &>::of(&QComboBox::activated),
+    connect(styleComboBox, &QComboBox::textActivated,
 //! [1] //! [2]
             this, &WidgetGallery::changeStyle);
     connect(useStylePaletteCheckBox, &QCheckBox::toggled,
diff --git a/examples/xml/htmlinfo/main.cpp b/examples/xml/htmlinfo/main.cpp
index 22bf36f33c..bc19ae4a82 100644
--- a/examples/xml/htmlinfo/main.cpp
+++ b/examples/xml/htmlinfo/main.cpp
@@ -54,10 +54,10 @@ void parseHtmlFile(QTextStream &out, const QString &fileName)
 {
     QFile file(fileName);
 
-    out << "Analysis of HTML file: " << fileName << endl;
+    out << "Analysis of HTML file: " << fileName << Qt::endl;
 
     if (!file.open(QIODevice::ReadOnly)) {
-        out << "  Couldn't open the file." << endl << endl << endl;
+        out << "  Couldn't open the file." << Qt::endl << Qt::endl << Qt::endl;
         return;
     }
 
@@ -85,22 +85,22 @@ void parseHtmlFile(QTextStream &out, const QString &fileName)
 //! [2]
     if (reader.hasError()) {
         out << "  The HTML file isn't well-formed: " << reader.errorString()
-            << endl << endl << endl;
+            << Qt::endl << Qt::endl << Qt::endl;
         return;
     }
 //! [2]
 
-    out << "  Title: \"" << title << '"' << endl
-        << "  Number of paragraphs: " << paragraphCount << endl
-        << "  Number of links: " << links.size() << endl
-        << "  Showing first few links:" << endl;
+    out << "  Title: \"" << title << '"' << Qt::endl
+        << "  Number of paragraphs: " << paragraphCount << Qt::endl
+        << "  Number of links: " << links.size() << Qt::endl
+        << "  Showing first few links:" << Qt::endl;
 
     while (links.size() > 5)
         links.removeLast();
 
     for (const QString &link : qAsConst(links))
-        out << "    " << link << endl;
-    out << endl << endl;
+        out << "    " << link << Qt::endl;
+    out << Qt::endl << Qt::endl;
 }
 
 int main(int argc, char **argv)
diff --git a/mkspecs/android-clang/qmake.conf b/mkspecs/android-clang/qmake.conf
index 20c6efee16..bb02a3639f 100644
--- a/mkspecs/android-clang/qmake.conf
+++ b/mkspecs/android-clang/qmake.conf
@@ -47,6 +47,4 @@ exists($$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so): \
 else: \
     ANDROID_CXX_STL_LIBS = $$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so.$$replace(ANDROID_PLATFORM, "android-", "")
 
-QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
-
 include(../common/android-base-tail.conf)
diff --git a/mkspecs/common/clang.conf b/mkspecs/common/clang.conf
index df210fe42d..aead581478 100644
--- a/mkspecs/common/clang.conf
+++ b/mkspecs/common/clang.conf
@@ -16,10 +16,13 @@ QMAKE_LINK_SHLIB        = $$QMAKE_CXX
 CONFIG                 += clang_pch_style
 QMAKE_PCH_OUTPUT_EXT    = .pch
 
+QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
+
 QMAKE_CFLAGS_ISYSTEM             = -isystem
 QMAKE_CFLAGS_PRECOMPILE          = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
 QMAKE_CFLAGS_USE_PRECOMPILE      = -Xclang -include-pch -Xclang ${QMAKE_PCH_OUTPUT}
-QMAKE_CFLAGS_LTCG                = -flto
+QMAKE_CFLAGS_LTCG                = -flto=thin
+QMAKE_CFLAGS_LTCG_FATOBJECTS     = -flto
 QMAKE_CFLAGS_DISABLE_LTCG        = -fno-lto
 QMAKE_CFLAGS_GNUC99              = -std=gnu99
 QMAKE_CFLAGS_GNUC11              = -std=gnu11
@@ -27,6 +30,7 @@ QMAKE_CFLAGS_GNUC11              = -std=gnu11
 QMAKE_CXXFLAGS_PRECOMPILE        = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
 QMAKE_CXXFLAGS_USE_PRECOMPILE    = $$QMAKE_CFLAGS_USE_PRECOMPILE
 QMAKE_CXXFLAGS_LTCG              = $$QMAKE_CFLAGS_LTCG
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS   = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
 QMAKE_CXXFLAGS_DISABLE_LTCG      = $$QMAKE_CFLAGS_DISABLE_LTCG
 QMAKE_CXXFLAGS_CXX11             = -std=c++11
 QMAKE_CXXFLAGS_CXX14             = -std=c++1y
diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf
index 44b4267207..4d82321cba 100644
--- a/mkspecs/common/gcc-base.conf
+++ b/mkspecs/common/gcc-base.conf
@@ -38,7 +38,7 @@ QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os
 
 !equals(QMAKE_HOST.os, Windows): QMAKE_CFLAGS += -pipe
 QMAKE_CFLAGS_DEPS          += -M
-QMAKE_CFLAGS_WARN_ON       += -Wall -W
+QMAKE_CFLAGS_WARN_ON       += -Wall -Wextra
 QMAKE_CFLAGS_WARN_OFF      += -w
 QMAKE_CFLAGS_RELEASE       += $$QMAKE_CFLAGS_OPTIMIZE
 QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += $$QMAKE_CFLAGS_OPTIMIZE -g
diff --git a/mkspecs/common/rtems-base.conf b/mkspecs/common/rtems-base.conf
new file mode 100644
index 0000000000..0a015c3173
--- /dev/null
+++ b/mkspecs/common/rtems-base.conf
@@ -0,0 +1,73 @@
+#
+# Base qmake configuration for GCC on RTEMS
+#
+#
+#
+MAKEFILE_GENERATOR      = UNIX
+
+QMAKE_PLATFORM          = rtems
+
+include(unix.conf)
+include(gcc-base-unix.conf)
+include(g++-unix.conf)
+
+rtems_bsp = $$(RTEMS_BSP)
+isEmpty(rtems_bsp) {
+    error("This qmakespec requires $RTEMS_BSP to be set")
+}
+
+rtems_compiler = $$(RTEMS_COMPILER)
+isEmpty(rtems_compiler) {
+    error("This qmakespec requires $RTEMS_COMPILER to be set")
+}
+
+isEmpty(RTEMS_CPU_FLAGS) {
+    error("The qmakespec is expected to set \$\$RTEMS_CPU_FLAGS")
+}
+
+RTEMS_FLAGS = \
+    -B$$rtems_bsp \
+    -specs bsp_specs \
+    -qrtems \
+    $$RTEMS_CPU_FLAGS
+
+QMAKE_CFLAGS_OPTIMIZE_FULL  = $$QMAKE_CFLAGS_OPTIMIZE
+QMAKE_CFLAGS_OPTIMIZE_DEBUG = -O0 -g
+
+QMAKE_CFLAGS_DEBUG      = $$QMAKE_CFLAGS_OPTIMIZE_DEBUG
+QMAKE_CFLAGS_WARN_ON    = -Wall
+QMAKE_CFLAGS_PIC        =
+QMAKE_CFLAGS_SHLIB      =
+QMAKE_CFLAGS_STATIC_LIB =
+QMAKE_CFLAGS_APP        =
+QMAKE_CFLAGS           += $$RTEMS_FLAGS
+
+QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
+QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
+QMAKE_CXXFLAGS_SHLIB    =
+QMAKE_CXXFLAGS_STATIC_LIB =
+QMAKE_CXXFLAGS_APP      =
+QMAKE_CXXFLAGS         += $$RTEMS_FLAGS
+
+QMAKE_CXXFLAGS_CXX11    =
+QMAKE_CXXFLAGS_CXX14    =
+QMAKE_CXXFLAGS_CXX1Z    =
+
+QMAKE_LFLAGS_GCSECTIONS = -Wl,--gc-sections
+QMAKE_LFLAGS           += $$RTEMS_FLAGS $$QMAKE_LFLAGS_GCSECTIONS
+
+QMAKE_CC                = $${rtems_compiler}-gcc
+QMAKE_CXX               = $${rtems_compiler}-g++
+QMAKE_AR                = $${rtems_compiler}-ar cqs
+QMAKE_OBJCOPY           = $${rtems_compiler}-objcopy
+QMAKE_NM                = $${rtems_compiler}-nm -P
+QMAKE_RANLIB            = $${rtems_compiler}-ranlib
+QMAKE_STRIP             = $${rtems_compiler}-strip
+
+QMAKE_LINK_C            = $$QMAKE_CC
+QMAKE_LINK_C_SHLIB      =
+
+QMAKE_LINK              = $$QMAKE_CXX
+QMAKE_LINK_SHLIB        =
+
+load(qt_config)
diff --git a/src/plugins/platforms/mirclient/qmirclientorientationchangeevent_p.h b/mkspecs/common/rtems/qplatformdefs.h
index 5abd3262dc..1baa7c7d74 100644
--- a/src/plugins/platforms/mirclient/qmirclientorientationchangeevent_p.h
+++ b/mkspecs/common/rtems/qplatformdefs.h
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 The Qt Company. All rights reserved.
 ** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the plugins of the Qt Toolkit.
+** This file is part of the qmake spec of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
@@ -37,25 +37,34 @@
 **
 ****************************************************************************/
 
+#ifndef Q_RTEMS_PLATFORMDEFS_H
+#define Q_RTEMS_PLATFORMDEFS_H
 
-#ifndef QMIRCLIENTORIENTATIONCHANGEEVENT_P_H
-#define QMIRCLIENTORIENTATIONCHANGEEVENT_P_H
+// Get Qt defines/settings
 
-#include <QEvent>
-#include "qmirclientlogging.h"
+#include "qglobal.h"
 
-class OrientationChangeEvent : public QEvent {
-public:
-    enum Orientation { TopUp, LeftUp, TopDown, RightUp };
+#include <pthread.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/select.h>
 
-    OrientationChangeEvent(QEvent::Type type, Orientation orientation)
-        : QEvent(type)
-        , mOrientation(orientation)
-    {
-    }
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
 
-    static const QEvent::Type mType;
-    Orientation mOrientation;
-};
+#include <pwd.h>
+#include <grp.h>
 
-#endif // QMIRCLIENTORIENTATIONCHANGEEVENT_P_H
+#include "../posix/qplatformdefs.h"
+
+
+#ifdef __STRICT_ANSI__
+#undef __STRICT_ANSI__
+#endif
+
+#undef QT_OPEN_LARGEFILE
+#define QT_OPEN_LARGEFILE 0
+
+#endif // Q_RTEMS_PLATFORMDEFS_H
diff --git a/mkspecs/features/data/testserver/Dockerfile b/mkspecs/features/data/testserver/Dockerfile
new file mode 100644
index 0000000000..8fb664a1d2
--- /dev/null
+++ b/mkspecs/features/data/testserver/Dockerfile
@@ -0,0 +1,27 @@
+# This Dockerfile is used to provision the shared scripts (e.g. startup.sh) and configurations. It
+# relies on the arguments passed by docker-compose file to build additional images for each service.
+# To lean more how it works, please check the topic "Use multi-stage builds".
+# https://docs.docker.com/develop/develop-images/multistage-build/
+
+ARG provisioningImage
+FROM $provisioningImage as testserver_tier2
+
+# Add and merge the testdata into service folder
+ARG serviceDir
+ARG shareDir=$serviceDir
+COPY $serviceDir $shareDir service/
+
+# create the shared script of testserver
+RUN echo "#!/usr/bin/env bash\n" \
+         "set -ex\n" \
+         "for RUN_CMD; do \$RUN_CMD; done\n" \
+         "service dbus restart\n" \
+         "service avahi-daemon restart\n" \
+         "sleep infinity\n" > startup.sh
+RUN chmod +x startup.sh
+
+# rewrite the default configurations of avahi-daemon
+ARG test_domain
+RUN sed -i -e "s,#domain-name=local,domain-name=${test_domain:-test-net.qt.local}," \
+        -e "s,#publish-aaaa-on-ipv4=yes,publish-aaaa-on-ipv4=no," \
+        /etc/avahi/avahi-daemon.conf
diff --git a/mkspecs/features/ltcg.prf b/mkspecs/features/ltcg.prf
index ccf0226272..d113caf35c 100644
--- a/mkspecs/features/ltcg.prf
+++ b/mkspecs/features/ltcg.prf
@@ -2,7 +2,7 @@ CONFIG(release, debug|release) {
     # We need fat object files when creating static libraries on some platforms
     # so the linker will know to load a particular object from the library
     # in the first place. On others, we have special ar and nm to create the symbol
-    # tables so the linker will know  better. For other compilers, we disable LTCG
+    # tables so the linker will know better. For other compilers, we disable LTCG
     # for static libraries.
     msvc {
         # Nothing to do
diff --git a/mkspecs/features/qt_configure.prf b/mkspecs/features/qt_configure.prf
index 94eb012b81..7c48badfaf 100644
--- a/mkspecs/features/qt_configure.prf
+++ b/mkspecs/features/qt_configure.prf
@@ -61,6 +61,13 @@ defineTest(qtConfCommandlineSetInput) {
     val = $${2}
     !isEmpty($${currentConfig}.commandline.options.$${arg}.name): \
         arg = $$eval($${currentConfig}.commandline.options.$${arg}.name)
+    !isEmpty(config.input.$$arg) {
+        oldval = $$eval(config.input.$$arg)
+        equals(oldval, $$val): \
+            qtConfAddNote("Option '$$arg' with value '$$val' was specified twice")
+        else: \
+            qtConfAddNote("Overriding option '$$arg' with '$$val' (was: '$$oldval')")
+    }
 
     config.input.$$arg = $$val
     export(config.input.$$arg)
diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
index 51b5bde67a..8bd2d92421 100644
--- a/mkspecs/features/qt_module.prf
+++ b/mkspecs/features/qt_module.prf
@@ -317,5 +317,6 @@ win32 {
     # On other platforms, Qt's own compilation goes needs to compile the Qt 5.0 API
     DEFINES *= QT_DISABLE_DEPRECATED_BEFORE=0x050000
 }
+DEFINES *= QT_DEPRECATED_WARNINGS_SINCE=0x060000
 
 TARGET = $$qt5LibraryTarget($$TARGET$$QT_LIBINFIX)  # Do this towards the end
diff --git a/tests/auto/testserver.pri b/mkspecs/features/unsupported/testserver.prf
index 26e7f6ab8a..6507a360c5 100644
--- a/tests/auto/testserver.pri
+++ b/mkspecs/features/unsupported/testserver.prf
@@ -58,9 +58,9 @@ debug_and_release:!build_pass: return()
 
 DOCKER_ENABLED = 1
 
-equals(QMAKE_HOST.os, Darwin) {
+equals(QMAKE_HOST.os, Darwin) | equals(QMAKE_HOST.os, Windows) {
     DOCKER_ENABLED = 0
-    message("Not using docker network test server on macOS, see QTQAINFRA-2717 and QTQAINFRA-2750")
+    message("Not using docker network test server on macOS and Windows, see QTQAINFRA-2717 and QTQAINFRA-2750")
 }
 
 TESTSERVER_VERSION = ""
@@ -93,7 +93,7 @@ isEmpty(TESTSERVER_VERSION) {
         # but it causes a port conflict if the user is running a service that
         # binds the same port on the host. An alternative solution is to deploy
         # the docker environment into VirtualBox using docker-machine.
-        TESTSERVER_COMPOSE_FILE = \
+        isEmpty(TESTSERVER_COMPOSE_FILE): TESTSERVER_COMPOSE_FILE = \
             $$dirname(_QMAKE_CONF_)/tests/testserver/docker-compose-for-macOS.yml
 
         # The connection configuration for the target machine
@@ -102,11 +102,12 @@ isEmpty(TESTSERVER_VERSION) {
         # The environment variables passed to the docker-compose file
         TEST_ENV = 'MACHINE_IP=$(shell docker-machine ip qt-test-server)'
         TEST_ENV += 'TEST_DOMAIN=$$DNSDOMAIN'
+        TEST_ENV += 'SHARED_DATA=$$PWD/../data/testserver'
         TEST_CMD = env
     } else:equals(QMAKE_HOST.os, Windows) {
         # There is no docker bridge on Windows. It is impossible to ping a container.
         # Use docker-machine to deploy the docker environment into VirtualBox.
-        TESTSERVER_COMPOSE_FILE = \
+        isEmpty(TESTSERVER_COMPOSE_FILE): TESTSERVER_COMPOSE_FILE = \
             $$dirname(_QMAKE_CONF_)/tests/testserver/docker-compose-for-windows.yml
 
         # The connection configuration for the target machine
@@ -115,6 +116,7 @@ isEmpty(TESTSERVER_VERSION) {
         # The environment variables passed to the docker-compose file
         TEST_ENV = '\$\$env:MACHINE_IP = docker-machine ip qt-test-server;'
         TEST_ENV += '\$\$env:TEST_DOMAIN = $$shell_quote(\"$$DNSDOMAIN\");'
+        TEST_ENV += '\$\$env:SHARED_DATA = $$shell_quote(\"$$PWD/../data/testserver\");'
 
         # Docker-compose CLI environment variables:
         # Enable path conversion from Windows-style to Unix-style in volume definitions.
@@ -123,12 +125,15 @@ isEmpty(TESTSERVER_VERSION) {
         TEST_CMD = 'PowerShell -noprofile'
         CONFIG += PowerShell
     } else {
-        TESTSERVER_COMPOSE_FILE = $$dirname(_QMAKE_CONF_)/tests/testserver/docker-compose.yml
-
+        isEmpty(TESTSERVER_COMPOSE_FILE): TESTSERVER_COMPOSE_FILE = \
+            $$dirname(_QMAKE_CONF_)/tests/testserver/docker-compose.yml
         # The environment variables passed to the docker-compose file
         TEST_ENV = 'TEST_DOMAIN=$$DNSDOMAIN'
+        TEST_ENV += 'SHARED_DATA=$$PWD/../data/testserver'
         TEST_CMD = env
     }
+    !exists($$TESTSERVER_COMPOSE_FILE): error("Invalid TESTSERVER_COMPOSE_FILE specified")
+
 
     # The domain name is relevant to https keycert (qnetworkreply/crts/qt-test-net-cacert.pem).
     DEFINES += QT_TEST_SERVER QT_TEST_SERVER_DOMAIN=$$shell_quote(\"$${DNSDOMAIN}\")
@@ -198,7 +203,7 @@ isEmpty(TESTSERVER_VERSION) {
     # Bring up test servers and make sure the services are ready.
     !isEmpty(TEST_CMD): testserver_test.commands = $$TEST_CMD $$TEST_ENV
     testserver_test.commands += docker-compose $$MACHINE_CONFIG -f $$TESTSERVER_COMPOSE_FILE up \
-                                --detach --force-recreate --timeout 1 $${QT_TEST_SERVER_LIST} &&
+                                --build -d --force-recreate --timeout 1 $${QT_TEST_SERVER_LIST} &&
 
     # Check test cases with docker-based test servers.
     testserver_test.commands += $(MAKE) -f $(MAKEFILE) check_network &&
diff --git a/mkspecs/win32-clang-g++/qmake.conf b/mkspecs/win32-clang-g++/qmake.conf
index 4630ec4602..59d42176f0 100644
--- a/mkspecs/win32-clang-g++/qmake.conf
+++ b/mkspecs/win32-clang-g++/qmake.conf
@@ -24,4 +24,12 @@ QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
 QMAKE_LINK              = $${CROSS_COMPILE}clang++
 QMAKE_LINK_C            = $${CROSS_COMPILE}clang
 
+QMAKE_CFLAGS_LTCG       = -flto=thin
+QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
+QMAKE_CFLAGS_LTCG_FATOBJECTS = -flto
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
+QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
+
+QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
+
 load(qt_config)
diff --git a/mkspecs/win32-clang-msvc/qmake.conf b/mkspecs/win32-clang-msvc/qmake.conf
index 9a7f70454d..5da7e2d1b2 100644
--- a/mkspecs/win32-clang-msvc/qmake.conf
+++ b/mkspecs/win32-clang-msvc/qmake.conf
@@ -39,9 +39,16 @@ QMAKE_CXXFLAGS         += -Wno-microsoft-enum-value
 QMAKE_LINK              = lld-link
 QMAKE_LIB               = llvm-lib /NOLOGO
 
-QMAKE_CFLAGS_LTCG       = -flto
+QMAKE_CFLAGS_LTCG       = -flto=thin
 QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
+QMAKE_CFLAGS_LTCG_FATOBJECTS = -flto
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
 # Leave QMAKE_LFLAGS_LTCG empty because lld-link doesn't need any additional parameters
 QMAKE_LFLAGS_LTCG       =
 
+QMAKE_CFLAGS_OPTIMIZE_SIZE = /clang:-Oz
+QMAKE_CFLAGS_OPTIMIZE_FULL = /clang:-O3
+
+QMAKE_LFLAGS_RELEASE   += /OPT:REF,ICF,LBR
+
 load(qt_config)
diff --git a/qmake/Makefile.win32 b/qmake/Makefile.win32
index 506e9deb19..6ab40c6765 100644
--- a/qmake/Makefile.win32
+++ b/qmake/Makefile.win32
@@ -24,10 +24,8 @@ LINKER            = link
 CFLAGS_EXTRA      = /MP /wd4577 $(CFLAGS_CRT)
 !endif  # !win32-icc
 
-!if "$(QMAKESPEC)" != "win32-clang-msvc"
 CFLAGS_PCH        = -Yuqmake_pch.h -FIqmake_pch.h -Fpqmake_pch.pch
 PCH_OBJECT        = qmake_pch.obj
-!endif
 
 CFLAGS_BARE = -c -Fo./ -Fdqmake.pdb \
               -W2 -nologo -O2 \
diff --git a/qmake/generators/mac/pbuilder_pbx.cpp b/qmake/generators/mac/pbuilder_pbx.cpp
index 07832041a7..3bed28afdf 100644
--- a/qmake/generators/mac/pbuilder_pbx.cpp
+++ b/qmake/generators/mac/pbuilder_pbx.cpp
@@ -541,7 +541,7 @@ ProjectBuilderMakefileGenerator::writeMakeParts(QTextStream &t)
             debug_msg(1, "pbuilder: Creating file: %s", mkfile.toLatin1().constData());
             QTextStream mkt(&mkf);
             writeHeader(mkt);
-            mkt << "QMAKE    = " << var("QMAKE_QMAKE") << endl;
+            mkt << "QMAKE    = " << var("QMAKE_QMAKE") << Qt::endl;
             project->values("QMAKE_MAKE_QMAKE_EXTRA_COMMANDS")
                 << "@echo 'warning: Xcode project has been regenerated, custom settings have been lost. " \
                    "Use CONFIG+=no_autoqmake to prevent this behavior in the future, " \
@@ -740,15 +740,15 @@ ProjectBuilderMakefileGenerator::writeMakeParts(QTextStream &t)
             debug_msg(1, "pbuilder: Creating file: %s", mkfile.toLatin1().constData());
             QTextStream mkt(&mkf);
             writeHeader(mkt);
-            mkt << "MOC       = " << var("QMAKE_MOC") << endl;
-            mkt << "UIC       = " << var("QMAKE_UIC") << endl;
-            mkt << "LEX       = " << var("QMAKE_LEX") << endl;
-            mkt << "LEXFLAGS  = " << var("QMAKE_LEXFLAGS") << endl;
-            mkt << "YACC      = " << var("QMAKE_YACC") << endl;
-            mkt << "YACCFLAGS = " << var("QMAKE_YACCFLAGS") << endl;
+            mkt << "MOC       = " << var("QMAKE_MOC") << Qt::endl;
+            mkt << "UIC       = " << var("QMAKE_UIC") << Qt::endl;
+            mkt << "LEX       = " << var("QMAKE_LEX") << Qt::endl;
+            mkt << "LEXFLAGS  = " << var("QMAKE_LEXFLAGS") << Qt::endl;
+            mkt << "YACC      = " << var("QMAKE_YACC") << Qt::endl;
+            mkt << "YACCFLAGS = " << var("QMAKE_YACCFLAGS") << Qt::endl;
             mkt << "DEFINES       = "
                 << varGlue("PRL_EXPORT_DEFINES","-D"," -D"," ")
-                << varGlue("DEFINES","-D"," -D","") << endl;
+                << varGlue("DEFINES","-D"," -D","") << Qt::endl;
             mkt << "INCPATH       =";
             {
                 const ProStringList &incs = project->values("INCLUDEPATH");
@@ -757,9 +757,9 @@ ProjectBuilderMakefileGenerator::writeMakeParts(QTextStream &t)
             }
             if(!project->isEmpty("QMAKE_FRAMEWORKPATH_FLAGS"))
                mkt << " " << var("QMAKE_FRAMEWORKPATH_FLAGS");
-            mkt << endl;
-            mkt << "DEL_FILE  = " << var("QMAKE_DEL_FILE") << endl;
-            mkt << "MOVE      = " << var("QMAKE_MOVE") << endl << endl;
+            mkt << Qt::endl;
+            mkt << "DEL_FILE  = " << var("QMAKE_DEL_FILE") << Qt::endl;
+            mkt << "MOVE      = " << var("QMAKE_MOVE") << Qt::endl << Qt::endl;
             mkt << "preprocess: compilers\n";
             mkt << "clean preprocess_clean: compiler_clean\n\n";
             writeExtraTargets(mkt);
@@ -789,7 +789,7 @@ ProjectBuilderMakefileGenerator::writeMakeParts(QTextStream &t)
                         }
                     }
                 }
-                mkt << endl;
+                mkt << Qt::endl;
                 writeExtraCompilerTargets(mkt);
                 writingUnixMakefileGenerator = false;
             }
@@ -994,12 +994,12 @@ ProjectBuilderMakefileGenerator::writeMakeParts(QTextStream &t)
             tmp = project->values("SUBLIBS");
             for(int i = 0; i < tmp.count(); i++)
                 t << escapeFilePath("tmp/lib" + tmp[i] + ".a") << ' ';
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
             mkt << "sublibs: $(SUBLIBS)\n\n";
             tmp = project->values("SUBLIBS");
             for(int i = 0; i < tmp.count(); i++)
                 t << escapeFilePath("tmp/lib" + tmp[i] + ".a") + ":\n\t"
-                  << var(ProKey("MAKELIB" + tmp[i])) << endl << endl;
+                  << var(ProKey("MAKELIB" + tmp[i])) << Qt::endl << Qt::endl;
             mkt.flush();
             mkf.close();
             writingUnixMakefileGenerator = false;
diff --git a/qmake/generators/makefile.cpp b/qmake/generators/makefile.cpp
index b634ec622b..1a7a7a4322 100644
--- a/qmake/generators/makefile.cpp
+++ b/qmake/generators/makefile.cpp
@@ -994,25 +994,25 @@ MakefileGenerator::writePrlFile(QTextStream &t)
     QString bdir = Option::output_dir;
     if(bdir.isEmpty())
         bdir = qmake_getpwd();
-    t << "QMAKE_PRL_BUILD_DIR =" << qv(bdir) << endl;
+    t << "QMAKE_PRL_BUILD_DIR =" << qv(bdir) << Qt::endl;
 
-    t << "QMAKE_PRO_INPUT =" << qv(project->projectFile().section('/', -1)) << endl;
+    t << "QMAKE_PRO_INPUT =" << qv(project->projectFile().section('/', -1)) << Qt::endl;
 
     if(!project->isEmpty("QMAKE_ABSOLUTE_SOURCE_PATH"))
-        t << "QMAKE_PRL_SOURCE_DIR =" << qv(project->first("QMAKE_ABSOLUTE_SOURCE_PATH")) << endl;
-    t << "QMAKE_PRL_TARGET =" << qv(project->first("LIB_TARGET")) << endl;
+        t << "QMAKE_PRL_SOURCE_DIR =" << qv(project->first("QMAKE_ABSOLUTE_SOURCE_PATH")) << Qt::endl;
+    t << "QMAKE_PRL_TARGET =" << qv(project->first("LIB_TARGET")) << Qt::endl;
     if(!project->isEmpty("PRL_EXPORT_DEFINES"))
-        t << "QMAKE_PRL_DEFINES =" << qv(project->values("PRL_EXPORT_DEFINES")) << endl;
+        t << "QMAKE_PRL_DEFINES =" << qv(project->values("PRL_EXPORT_DEFINES")) << Qt::endl;
     if(!project->isEmpty("PRL_EXPORT_CFLAGS"))
-        t << "QMAKE_PRL_CFLAGS =" << qv(project->values("PRL_EXPORT_CFLAGS")) << endl;
+        t << "QMAKE_PRL_CFLAGS =" << qv(project->values("PRL_EXPORT_CFLAGS")) << Qt::endl;
     if(!project->isEmpty("PRL_EXPORT_CXXFLAGS"))
-        t << "QMAKE_PRL_CXXFLAGS =" << qv(project->values("PRL_EXPORT_CXXFLAGS")) << endl;
+        t << "QMAKE_PRL_CXXFLAGS =" << qv(project->values("PRL_EXPORT_CXXFLAGS")) << Qt::endl;
     if(!project->isEmpty("CONFIG"))
-        t << "QMAKE_PRL_CONFIG =" << qv(project->values("CONFIG")) << endl;
+        t << "QMAKE_PRL_CONFIG =" << qv(project->values("CONFIG")) << Qt::endl;
     if(!project->isEmpty("TARGET_VERSION_EXT"))
-        t << "QMAKE_PRL_VERSION = " << project->first("TARGET_VERSION_EXT") << endl;
+        t << "QMAKE_PRL_VERSION = " << project->first("TARGET_VERSION_EXT") << Qt::endl;
     else if(!project->isEmpty("VERSION"))
-        t << "QMAKE_PRL_VERSION = " << project->first("VERSION") << endl;
+        t << "QMAKE_PRL_VERSION = " << project->first("VERSION") << Qt::endl;
     if(project->isActiveConfig("staticlib") || project->isActiveConfig("explicitlib")) {
         ProStringList libs;
         if (!project->isActiveConfig("staticlib"))
@@ -1022,7 +1022,7 @@ MakefileGenerator::writePrlFile(QTextStream &t)
         t << "QMAKE_PRL_LIBS =";
         for (ProStringList::Iterator it = libs.begin(); it != libs.end(); ++it)
             t << qv(project->values((*it).toKey()));
-        t << endl;
+        t << Qt::endl;
     }
 }
 
@@ -1055,15 +1055,15 @@ MakefileGenerator::writeProjectMakefile()
         t << "install: ";
         for(it = targets.begin(); it != targets.end(); ++it)
             t << (*it)->target << "-install ";
-        t << endl;
+        t << Qt::endl;
 
         //uninstall
         t << "uninstall: ";
         for(it = targets.begin(); it != targets.end(); ++it)
             t << (*it)->target << "-uninstall ";
-        t << endl;
+        t << Qt::endl;
     } else {
-        t << "first: " << targets.first()->target << endl
+        t << "first: " << targets.first()->target << Qt::endl
           << "install: " << targets.first()->target << "-install\n"
           << "uninstall: " << targets.first()->target << "-uninstall\n";
     }
@@ -1072,7 +1072,7 @@ MakefileGenerator::writeProjectMakefile()
     if(!project->isActiveConfig("no_autoqmake")) {
         QString mkf = escapeDependencyPath(fileFixify(Option::output.fileName()));
         for(QList<SubTarget*>::Iterator it = targets.begin(); it != targets.end(); ++it)
-            t << escapeDependencyPath((*it)->makefile) << ": " << mkf << endl;
+            t << escapeDependencyPath((*it)->makefile) << ": " << mkf << Qt::endl;
     }
     qDeleteAll(targets);
     return true;
@@ -1186,7 +1186,7 @@ MakefileGenerator::writeObj(QTextStream &t, const char *src)
             p.replace(stringObj, escapeFilePath(dstf));
             t << "\n\t" << p;
         }
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
 }
 
@@ -1380,14 +1380,14 @@ MakefileGenerator::writeInstalls(QTextStream &t, bool noBuild)
                 QString tmp_dst = fileFixify((*pit).toQString(), FileFixifyAbsolute, false);
                 t << mkdir_p_asstring(filePrefixRoot(root, tmp_dst)) << "\n\t";
             }
-            t << target << endl << endl;
+            t << target << Qt::endl << Qt::endl;
             if(!uninst.isEmpty()) {
                 t << "uninstall_" << (*it) << ": FORCE";
                 for (int i = uninst.size(); --i >= 0; )
                     t << "\n\t" << uninst.at(i);
                 t << "\n\t-$(DEL_DIR) " << escapeFilePath(filePrefixRoot(root, dst)) << " \n\n";
             }
-            t << endl;
+            t << Qt::endl;
 
             if (installConfigValues.indexOf("no_default_install") == -1) {
                 all_installs += QString("install_") + (*it) + " ";
@@ -1824,7 +1824,7 @@ MakefileGenerator::writeExtraTargets(QTextStream &t)
         t << escapeDependencyPath(targ) << ":" << deps;
         if(!cmd.isEmpty())
             t << "\n\t" << cmd;
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
 }
 
@@ -1916,7 +1916,7 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
                         FileFixifyFromOutdir));
             }
         }
-        t << endl;
+        t << Qt::endl;
 
         if (config.indexOf("no_clean") == -1) {
             QStringList raw_clean = project->values(ProKey(*it + ".clean")).toQStringList();
@@ -1981,7 +1981,7 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
                     }
                 }
             }
-            t << endl;
+            t << Qt::endl;
         }
         QStringList tmp_dep = project->values(ProKey(*it + ".depends")).toQStringList();
         if (config.indexOf("combine") != -1) {
@@ -2065,7 +2065,7 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
             } else {
                 t << " " << valList(escapeDependencyPaths(inputs)) << " " << valList(finalizeDependencyPaths(deps));
             }
-            t << "\n\t" << cmd << endl << endl;
+            t << "\n\t" << cmd << Qt::endl << Qt::endl;
             continue;
         }
         for (ProStringList::ConstIterator input = tmp_inputs.cbegin(); input != tmp_inputs.cend(); ++input) {
@@ -2177,10 +2177,10 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
                     ++i;
             }
             t << escapeDependencyPath(out) << ": " << valList(finalizeDependencyPaths(deps)) << "\n\t"
-              << cmd << endl << endl;
+              << cmd << Qt::endl << Qt::endl;
         }
     }
-    t << "compiler_clean: " << clean_targets << endl << endl;
+    t << "compiler_clean: " << clean_targets << Qt::endl << Qt::endl;
 }
 
 void
@@ -2196,17 +2196,17 @@ MakefileGenerator::writeExtraCompilerVariables(QTextStream &t)
                 first = false;
             }
             t << "QMAKE_COMP_" << (*varit) << " = "
-              << valList(project->values((*varit).toKey())) << endl;
+              << valList(project->values((*varit).toKey())) << Qt::endl;
         }
     }
     if(!first)
-        t << endl;
+        t << Qt::endl;
 }
 
 void
 MakefileGenerator::writeExtraVariables(QTextStream &t)
 {
-    t << endl;
+    t << Qt::endl;
 
     ProStringList outlist;
     const ProValueMap &vars = project->variables();
@@ -2220,7 +2220,7 @@ MakefileGenerator::writeExtraVariables(QTextStream &t)
     }
     if (!outlist.isEmpty()) {
         t << "####### Custom Variables\n";
-        t << outlist.join('\n') << endl << endl;
+        t << outlist.join('\n') << Qt::endl << Qt::endl;
     }
 }
 
@@ -2236,11 +2236,11 @@ MakefileGenerator::writeExportedVariables(QTextStream &t)
         const ProString &name = project->first(ProKey(exp + ".name"));
         const ProString &value = project->first(ProKey(exp + ".value"));
         if (!value.isEmpty())
-            t << name << " = " << value << endl;
+            t << name << " = " << value << Qt::endl;
         else
             t << name << " =\n";
     }
-    t << endl;
+    t << Qt::endl;
 }
 
 bool
@@ -2248,7 +2248,7 @@ MakefileGenerator::writeDummyMakefile(QTextStream &t)
 {
     if (project->values("QMAKE_FAILED_REQUIREMENTS").isEmpty())
         return false;
-    t << "QMAKE    = " << var("QMAKE_QMAKE") << endl;
+    t << "QMAKE    = " << var("QMAKE_QMAKE") << Qt::endl;
     const ProStringList &qut = project->values("QMAKE_EXTRA_TARGETS");
     for (ProStringList::ConstIterator it = qut.begin(); it != qut.end(); ++it)
         t << *it << " ";
@@ -2264,7 +2264,7 @@ MakefileGenerator::writeDummyMakefile(QTextStream &t)
 bool
 MakefileGenerator::writeStubMakefile(QTextStream &t)
 {
-    t << "QMAKE    = " << var("QMAKE_QMAKE") << endl;
+    t << "QMAKE    = " << var("QMAKE_QMAKE") << Qt::endl;
     const ProStringList &qut = project->values("QMAKE_EXTRA_TARGETS");
     for (ProStringList::ConstIterator it = qut.begin(); it != qut.end(); ++it)
         t << *it << " ";
@@ -2293,22 +2293,22 @@ MakefileGenerator::writeMakefile(QTextStream &t)
 void
 MakefileGenerator::writeDefaultVariables(QTextStream &t)
 {
-    t << "QMAKE         = " << var("QMAKE_QMAKE") << endl;
-    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << endl;
-    t << "CHK_DIR_EXISTS= " << var("QMAKE_CHK_DIR_EXISTS") << endl;
-    t << "MKDIR         = " << var("QMAKE_MKDIR") << endl;
-    t << "COPY          = " << var("QMAKE_COPY") << endl;
-    t << "COPY_FILE     = " << var("QMAKE_COPY_FILE") << endl;
-    t << "COPY_DIR      = " << var("QMAKE_COPY_DIR") << endl;
-    t << "INSTALL_FILE  = " << var("QMAKE_INSTALL_FILE") << endl;
-    t << "INSTALL_PROGRAM = " << var("QMAKE_INSTALL_PROGRAM") << endl;
-    t << "INSTALL_DIR   = " << var("QMAKE_INSTALL_DIR") << endl;
-    t << "QINSTALL      = " << var("QMAKE_QMAKE") << " -install qinstall" << endl;
-    t << "QINSTALL_PROGRAM = " << var("QMAKE_QMAKE") << " -install qinstall -exe" << endl;
-    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << endl;
-    t << "SYMLINK       = " << var("QMAKE_SYMBOLIC_LINK") << endl;
-    t << "DEL_DIR       = " << var("QMAKE_DEL_DIR") << endl;
-    t << "MOVE          = " << var("QMAKE_MOVE") << endl;
+    t << "QMAKE         = " << var("QMAKE_QMAKE") << Qt::endl;
+    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << Qt::endl;
+    t << "CHK_DIR_EXISTS= " << var("QMAKE_CHK_DIR_EXISTS") << Qt::endl;
+    t << "MKDIR         = " << var("QMAKE_MKDIR") << Qt::endl;
+    t << "COPY          = " << var("QMAKE_COPY") << Qt::endl;
+    t << "COPY_FILE     = " << var("QMAKE_COPY_FILE") << Qt::endl;
+    t << "COPY_DIR      = " << var("QMAKE_COPY_DIR") << Qt::endl;
+    t << "INSTALL_FILE  = " << var("QMAKE_INSTALL_FILE") << Qt::endl;
+    t << "INSTALL_PROGRAM = " << var("QMAKE_INSTALL_PROGRAM") << Qt::endl;
+    t << "INSTALL_DIR   = " << var("QMAKE_INSTALL_DIR") << Qt::endl;
+    t << "QINSTALL      = " << var("QMAKE_QMAKE") << " -install qinstall" << Qt::endl;
+    t << "QINSTALL_PROGRAM = " << var("QMAKE_QMAKE") << " -install qinstall -exe" << Qt::endl;
+    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << Qt::endl;
+    t << "SYMLINK       = " << var("QMAKE_SYMBOLIC_LINK") << Qt::endl;
+    t << "DEL_DIR       = " << var("QMAKE_DEL_DIR") << Qt::endl;
+    t << "MOVE          = " << var("QMAKE_MOVE") << Qt::endl;
 }
 
 QString MakefileGenerator::buildArgs(bool withExtra)
@@ -2349,18 +2349,18 @@ void
 MakefileGenerator::writeHeader(QTextStream &t)
 {
     t << "#############################################################################\n";
-    t << "# Makefile for building: " << escapeFilePath(var("TARGET")) << endl;
+    t << "# Makefile for building: " << escapeFilePath(var("TARGET")) << Qt::endl;
     t << "# Generated by qmake (" QMAKE_VERSION_STR ") (Qt " QT_VERSION_STR ")\n";
-    t << "# Project:  " << fileFixify(project->projectFile()) << endl;
-    t << "# Template: " << var("TEMPLATE") << endl;
+    t << "# Project:  " << fileFixify(project->projectFile()) << Qt::endl;
+    t << "# Template: " << var("TEMPLATE") << Qt::endl;
     if(!project->isActiveConfig("build_pass"))
-        t << "# Command: " << build_args().replace(QLatin1String("$(QMAKE)"), var("QMAKE_QMAKE")) << endl;
+        t << "# Command: " << build_args().replace(QLatin1String("$(QMAKE)"), var("QMAKE_QMAKE")) << Qt::endl;
     t << "#############################################################################\n";
-    t << endl;
+    t << Qt::endl;
     QString ofile = Option::fixPathToTargetOS(Option::output.fileName());
     if (ofile.lastIndexOf(Option::dir_sep) != -1)
         ofile.remove(0, ofile.lastIndexOf(Option::dir_sep) +1);
-    t << "MAKEFILE      = " << escapeFilePath(ofile) << endl << endl;
+    t << "MAKEFILE      = " << escapeFilePath(ofile) << Qt::endl << Qt::endl;
     t << "EQ            = =\n\n";
 }
 
@@ -2492,7 +2492,7 @@ MakefileGenerator::writeSubDirs(QTextStream &t)
 void MakefileGenerator::writeSubMakeCall(QTextStream &t, const QString &callPrefix,
                                          const QString &makeArguments)
 {
-    t << callPrefix << "$(MAKE)" << makeArguments << endl;
+    t << callPrefix << "$(MAKE)" << makeArguments << Qt::endl;
 }
 
 void
@@ -2517,14 +2517,14 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
     // blasted includes
     const ProStringList &qeui = project->values("QMAKE_EXTRA_INCLUDES");
     for (ProStringList::ConstIterator qeui_it = qeui.begin(); qeui_it != qeui.end(); ++qeui_it)
-        t << "include " << (*qeui_it) << endl;
+        t << "include " << (*qeui_it) << Qt::endl;
 
     if (!(flags & SubTargetSkipDefaultVariables)) {
         writeDefaultVariables(t);
         t << "SUBTARGETS    = ";     // subtargets are sub-directory
         for(int target = 0; target < targets.size(); ++target)
             t << " \\\n\t\t" << targets.at(target)->target;
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
     writeExtraVariables(t);
 
@@ -2580,7 +2580,7 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
             if (!dont_recurse)
                 writeSubMakeCall(t, out_directory_cdin, makefilein + " qmake_all");
             else
-                t << endl;
+                t << Qt::endl;
         }
 
         { //actually compile
@@ -2621,7 +2621,7 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
                                out_directory_cdin, makefilein + " " + s);
         }
     }
-    t << endl;
+    t << Qt::endl;
 
     if (!(flags & SubTargetSkipDefaultTargets)) {
         writeMakeQmake(t, true);
@@ -2670,7 +2670,7 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
         } else if(suffix == "distclean") {
             QString ofile = fileFixify(Option::output.fileName());
             if(!ofile.isEmpty())
-                t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << endl;
+                t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << Qt::endl;
             t << fixFileVarGlue("QMAKE_DISTCLEAN", "\t-$(DEL_FILE) ", " ", "\n");
         }
     }
@@ -2683,7 +2683,7 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
                  cmd = var(ProKey(*qut_it + ".commands")), deps;
         if(targ.isEmpty())
             targ = (*qut_it).toQString();
-        t << endl;
+        t << Qt::endl;
 
         const ProStringList &deplist = project->values(ProKey(*qut_it + ".depends"));
         for (ProStringList::ConstIterator dep_it = deplist.begin(); dep_it != deplist.end(); ++dep_it) {
@@ -2696,7 +2696,8 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
             QSet<QString> recurse;
             const ProKey rkey(*qut_it + ".recurse");
             if (project->isSet(rkey)) {
-                recurse = project->values(rkey).toQStringList().toSet();
+                const QStringList values = project->values(rkey).toQStringList();
+                recurse = QSet<QString>(values.begin(), values.end());
             } else {
                 for(int target = 0; target < targets.size(); ++target)
                     recurse.insert(targets.at(target)->name);
@@ -2758,7 +2759,7 @@ MakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::SubT
             deps += " FORCE";
         t << escapeDependencyPath(Option::fixPathToTargetOS(targ, false)) << ":" << deps << "\n";
         if(!cmd.isEmpty())
-            t << "\t" << cmd << endl;
+            t << "\t" << cmd << Qt::endl;
     }
 
     if(flags & SubTargetInstalls) {
@@ -2776,7 +2777,7 @@ MakefileGenerator::writeMakeQmake(QTextStream &t, bool noDummyQmakeAll)
     if(project->isEmpty("QMAKE_FAILED_REQUIREMENTS") && !project->isEmpty("QMAKE_INTERNAL_PRL_FILE")) {
         QStringList files = escapeFilePaths(fileFixify(Option::mkfile::project_files));
         t << escapeDependencyPath(project->first("QMAKE_INTERNAL_PRL_FILE").toQString()) << ": \n\t"
-          << "@$(QMAKE) -prl " << files.join(' ') << ' ' << buildArgs(true) << endl;
+          << "@$(QMAKE) -prl " << files.join(' ') << ' ' << buildArgs(true) << Qt::endl;
     }
 
         QString qmake = build_args();
@@ -2795,10 +2796,10 @@ MakefileGenerator::writeMakeQmake(QTextStream &t, bool noDummyQmakeAll)
             }
             const ProStringList &included = escapeDependencyPaths(project->values("QMAKE_INTERNAL_INCLUDED_FILES"));
             t << included.join(QString(" \\\n\t\t")) << "\n\t"
-              << qmake << endl;
+              << qmake << Qt::endl;
             const ProStringList &extraCommands = project->values("QMAKE_MAKE_QMAKE_EXTRA_COMMANDS");
             if (!extraCommands.isEmpty())
-                t << "\t" << extraCommands.join(QString("\n\t")) << endl;
+                t << "\t" << extraCommands.join(QString("\n\t")) << Qt::endl;
             for(int include = 0; include < included.size(); ++include) {
                 const ProString &i = included.at(include);
                 if(!i.isEmpty())
@@ -2806,7 +2807,7 @@ MakefileGenerator::writeMakeQmake(QTextStream &t, bool noDummyQmakeAll)
             }
         }
         if(project->first("QMAKE_ORIG_TARGET") != "qmake") {
-            t << "qmake: FORCE\n\t@" << qmake << endl << endl;
+            t << "qmake: FORCE\n\t@" << qmake << Qt::endl << Qt::endl;
             if (!noDummyQmakeAll)
                 t << "qmake_all: FORCE\n\n";
         }
@@ -3298,11 +3299,11 @@ MakefileGenerator::writePkgConfigFile()
     if(includeDir.isEmpty())
         includeDir = prefix + "/include";
 
-    t << "prefix=" << prefix << endl;
+    t << "prefix=" << prefix << Qt::endl;
     t << "exec_prefix=${prefix}\n"
       << "libdir=" << pkgConfigFixPath(libDir) << "\n"
-      << "includedir=" << pkgConfigFixPath(includeDir) << endl;
-    t << endl;
+      << "includedir=" << pkgConfigFixPath(includeDir) << Qt::endl;
+    t << Qt::endl;
 
     //extra PKGCONFIG variables
     const ProStringList &pkgconfig_vars = project->values("QMAKE_PKGCONFIG_VARIABLES");
@@ -3323,17 +3324,17 @@ MakefileGenerator::writePkgConfigFile()
             }
         }
         if (!val.isEmpty())
-            t << var << "=" << val << endl;
+            t << var << "=" << val << Qt::endl;
     }
 
-    t << endl;
+    t << Qt::endl;
 
     QString name = project->first("QMAKE_PKGCONFIG_NAME").toQString();
     if(name.isEmpty()) {
         name = project->first("QMAKE_ORIG_TARGET").toQString().toLower();
         name.replace(0, 1, name[0].toUpper());
     }
-    t << "Name: " << name << endl;
+    t << "Name: " << name << Qt::endl;
     QString desc = project->values("QMAKE_PKGCONFIG_DESCRIPTION").join(' ');
     if(desc.isEmpty()) {
         if(name.isEmpty()) {
@@ -3351,12 +3352,12 @@ MakefileGenerator::writePkgConfigFile()
             desc += " Application";
         }
     }
-    t << "Description: " << desc << endl;
+    t << "Description: " << desc << Qt::endl;
     ProString version = project->first("QMAKE_PKGCONFIG_VERSION");
     if (version.isEmpty())
         version = project->first("VERSION");
     if (!version.isEmpty())
-        t << "Version: " << version << endl;
+        t << "Version: " << version << Qt::endl;
 
     // libs
     t << "Libs: ";
@@ -3393,7 +3394,7 @@ MakefileGenerator::writePkgConfigFile()
         t << "Libs.private:";
         for (ProStringList::ConstIterator it = libs.cbegin(); it != libs.cend(); ++it)
             t << ' ' << fixLibFlags((*it).toKey()).join(' ');
-        t << endl;
+        t << Qt::endl;
     }
 
     // flags
@@ -3411,15 +3412,15 @@ MakefileGenerator::writePkgConfigFile()
         && libDir != QLatin1String("/Library/Frameworks")) {
             t << " -F${libdir}";
     }
-    t << endl;
+    t << Qt::endl;
 
     // requires
     const QString requires = project->values("QMAKE_PKGCONFIG_REQUIRES").join(' ');
     if (!requires.isEmpty()) {
-        t << "Requires: " << requires << endl;
+        t << "Requires: " << requires << Qt::endl;
     }
 
-    t << endl;
+    t << Qt::endl;
 }
 
 static QString windowsifyPath(const QString &str)
diff --git a/qmake/generators/metamakefile.cpp b/qmake/generators/metamakefile.cpp
index 8ebd0c61ce..f9159ccd75 100644
--- a/qmake/generators/metamakefile.cpp
+++ b/qmake/generators/metamakefile.cpp
@@ -27,7 +27,6 @@
 ****************************************************************************/
 
 #include "metamakefile.h"
-#include "qregexp.h"
 #include "qdir.h"
 #include "qdebug.h"
 #include "makefile.h"
diff --git a/qmake/generators/projectgenerator.cpp b/qmake/generators/projectgenerator.cpp
index ef34955eb1..f729ec89ef 100644
--- a/qmake/generators/projectgenerator.cpp
+++ b/qmake/generators/projectgenerator.cpp
@@ -324,14 +324,14 @@ ProjectGenerator::init()
 bool
 ProjectGenerator::writeMakefile(QTextStream &t)
 {
-    t << "######################################################################" << endl;
-    t << "# Automatically generated by qmake (" QMAKE_VERSION_STR ") " << QDateTime::currentDateTime().toString() << endl;
-    t << "######################################################################" << endl << endl;
+    t << "######################################################################" << Qt::endl;
+    t << "# Automatically generated by qmake (" QMAKE_VERSION_STR ") " << QDateTime::currentDateTime().toString() << Qt::endl;
+    t << "######################################################################" << Qt::endl << Qt::endl;
     if (!Option::globals->extra_cmds[QMakeEvalBefore].isEmpty())
-        t << Option::globals->extra_cmds[QMakeEvalBefore] << endl;
+        t << Option::globals->extra_cmds[QMakeEvalBefore] << Qt::endl;
     t << getWritableVar("TEMPLATE_ASSIGN", false);
     if(project->first("TEMPLATE_ASSIGN") == "subdirs") {
-        t << endl << "# Directories" << "\n"
+        t << Qt::endl << "# Directories" << "\n"
           << getWritableVar("SUBDIRS");
     } else {
         //figure out target
@@ -343,7 +343,7 @@ ProjectGenerator::writeMakefile(QTextStream &t)
         t << getWritableVar("TARGET_ASSIGN")
           << getWritableVar("CONFIG", false)
           << getWritableVar("CONFIG_REMOVE", false)
-          << getWritableVar("INCLUDEPATH") << endl;
+          << getWritableVar("INCLUDEPATH") << Qt::endl;
 
         t << "# You can make your code fail to compile if you use deprecated APIs.\n"
              "# In order to do so, uncomment the following line.\n"
@@ -362,7 +362,7 @@ ProjectGenerator::writeMakefile(QTextStream &t)
           << getWritableVar("TRANSLATIONS");
     }
     if (!Option::globals->extra_cmds[QMakeEvalAfter].isEmpty())
-        t << Option::globals->extra_cmds[QMakeEvalAfter] << endl;
+        t << Option::globals->extra_cmds[QMakeEvalAfter] << Qt::endl;
     return true;
 }
 
diff --git a/qmake/generators/unix/unixmake.cpp b/qmake/generators/unix/unixmake.cpp
index 7f42fbe09e..836737e77d 100644
--- a/qmake/generators/unix/unixmake.cpp
+++ b/qmake/generators/unix/unixmake.cpp
@@ -28,7 +28,6 @@
 
 #include "unixmake.h"
 #include "option.h"
-#include <qregexp.h>
 #include <qfile.h>
 #include <qhash.h>
 #include <qdir.h>
diff --git a/qmake/generators/unix/unixmake2.cpp b/qmake/generators/unix/unixmake2.cpp
index 7d8c70ec3b..a384439aac 100644
--- a/qmake/generators/unix/unixmake2.cpp
+++ b/qmake/generators/unix/unixmake2.cpp
@@ -83,8 +83,8 @@ void
 UnixMakefileGenerator::writeDefaultVariables(QTextStream &t)
 {
     MakefileGenerator::writeDefaultVariables(t);
-    t << "TAR           = " << var("QMAKE_TAR") << endl;
-    t << "COMPRESS      = " << var("QMAKE_GZIP") << endl;
+    t << "TAR           = " << var("QMAKE_TAR") << Qt::endl;
+    t << "COMPRESS      = " << var("QMAKE_GZIP") << Qt::endl;
 
     if (project->isEmpty("QMAKE_DISTNAME")) {
         ProString distname = project->first("QMAKE_ORIG_TARGET");
@@ -92,13 +92,13 @@ UnixMakefileGenerator::writeDefaultVariables(QTextStream &t)
             distname += project->first("VERSION");
         project->values("QMAKE_DISTNAME") = distname;
     }
-    t << "DISTNAME      = " << fileVar("QMAKE_DISTNAME") << endl;
+    t << "DISTNAME      = " << fileVar("QMAKE_DISTNAME") << Qt::endl;
 
     if (project->isEmpty("QMAKE_DISTDIR"))
         project->values("QMAKE_DISTDIR") = project->first("QMAKE_DISTNAME");
     t << "DISTDIR = " << escapeFilePath(fileFixify(
             (project->isEmpty("OBJECTS_DIR") ? ProString(".tmp/") : project->first("OBJECTS_DIR")) + project->first("QMAKE_DISTDIR"),
-            FileFixifyFromOutdir | FileFixifyAbsolute)) << endl;
+            FileFixifyFromOutdir | FileFixifyAbsolute)) << Qt::endl;
 }
 
 void
@@ -106,10 +106,10 @@ UnixMakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::
 {
     MakefileGenerator::writeSubTargets(t, targets, flags);
 
-    t << "dist: distdir FORCE" << endl;
+    t << "dist: distdir FORCE" << Qt::endl;
     t << "\t(cd `dirname $(DISTDIR)` && $(TAR) $(DISTNAME).tar $(DISTNAME) && $(COMPRESS) $(DISTNAME).tar)"
          " && $(MOVE) `dirname $(DISTDIR)`/$(DISTNAME).tar.gz . && $(DEL_FILE) -r $(DISTDIR)";
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     t << "distdir:";
     for (int target = 0; target < targets.size(); ++target) {
@@ -118,7 +118,7 @@ UnixMakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::
     }
     t << " FORCE\n\t"
       << mkdir_p_asstring("$(DISTDIR)", false) << "\n\t"
-      << "$(COPY_FILE) --parents " << fileVar("DISTFILES") << " $(DISTDIR)" << Option::dir_sep << endl << endl;
+      << "$(COPY_FILE) --parents " << fileVar("DISTFILES") << " $(DISTDIR)" << Option::dir_sep << Qt::endl << Qt::endl;
 
     const QString abs_source_path = project->first("QMAKE_ABSOLUTE_SOURCE_PATH").toQString();
     for (int target = 0; target < targets.size(); ++target) {
@@ -151,7 +151,7 @@ UnixMakefileGenerator::writeSubTargets(QTextStream &t, QList<MakefileGenerator::
         t << subtarget->target << "-distdir: FORCE";
         writeSubTargetCall(t, in_directory, in, out_directory, escapeFilePath(out),
                            out_directory_cdin, makefilein);
-        t << endl;
+        t << Qt::endl;
     }
 }
 
@@ -183,11 +183,11 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
     writeExportedVariables(t);
 
     t << "####### Compiler, tools and options\n\n";
-    t << "CC            = " << var("QMAKE_CC") << endl;
-    t << "CXX           = " << var("QMAKE_CXX") << endl;
+    t << "CC            = " << var("QMAKE_CC") << Qt::endl;
+    t << "CXX           = " << var("QMAKE_CXX") << Qt::endl;
     t << "DEFINES       = "
       << varGlue("PRL_EXPORT_DEFINES","-D"," -D"," ")
-      << varGlue("DEFINES","-D"," -D","") << endl;
+      << varGlue("DEFINES","-D"," -D","") << Qt::endl;
     t << "CFLAGS        = " << var("QMAKE_CFLAGS") << " $(DEFINES)\n";
     t << "CXXFLAGS      = " << var("QMAKE_CXXFLAGS") << " $(DEFINES)\n";
     t << "INCPATH       =";
@@ -208,38 +208,38 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
     }
     if(!project->isEmpty("QMAKE_FRAMEWORKPATH_FLAGS"))
        t << " " << var("QMAKE_FRAMEWORKPATH_FLAGS");
-    t << endl;
+    t << Qt::endl;
 
     writeDefaultVariables(t);
 
     if(!project->isActiveConfig("staticlib")) {
-        t << "LINK          = " << var("QMAKE_LINK") << endl;
-        t << "LFLAGS        = " << var("QMAKE_LFLAGS") << endl;
+        t << "LINK          = " << var("QMAKE_LINK") << Qt::endl;
+        t << "LFLAGS        = " << var("QMAKE_LFLAGS") << Qt::endl;
         t << "LIBS          = $(SUBLIBS) " << fixLibFlags("LIBS").join(' ') << ' '
                                            << fixLibFlags("LIBS_PRIVATE").join(' ') << ' '
                                            << fixLibFlags("QMAKE_LIBS").join(' ') << ' '
-                                           << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << endl;
+                                           << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << Qt::endl;
     }
 
-    t << "AR            = " << var("QMAKE_AR") << endl;
-    t << "RANLIB        = " << var("QMAKE_RANLIB") << endl;
-    t << "SED           = " << var("QMAKE_STREAM_EDITOR") << endl;
-    t << "STRIP         = " << var("QMAKE_STRIP") << endl;
+    t << "AR            = " << var("QMAKE_AR") << Qt::endl;
+    t << "RANLIB        = " << var("QMAKE_RANLIB") << Qt::endl;
+    t << "SED           = " << var("QMAKE_STREAM_EDITOR") << Qt::endl;
+    t << "STRIP         = " << var("QMAKE_STRIP") << Qt::endl;
 
-    t << endl;
+    t << Qt::endl;
 
     t << "####### Output directory\n\n";
     // This is used in commands by some .prf files.
     if (! project->values("OBJECTS_DIR").isEmpty())
-        t << "OBJECTS_DIR   = " << fileVar("OBJECTS_DIR") << endl;
+        t << "OBJECTS_DIR   = " << fileVar("OBJECTS_DIR") << Qt::endl;
     else
         t << "OBJECTS_DIR   = ./\n";
-    t << endl;
+    t << Qt::endl;
 
     /* files */
     t << "####### Files\n\n";
     // This is used by the dist target.
-    t << "SOURCES       = " << fileVarList("SOURCES") << ' ' << fileVarList("GENERATED_SOURCES") << endl;
+    t << "SOURCES       = " << fileVarList("SOURCES") << ' ' << fileVarList("GENERATED_SOURCES") << Qt::endl;
     if(do_incremental) {
         const ProStringList &objs = project->values("OBJECTS");
         const ProStringList &incrs = project->values("QMAKE_INCREMENTAL");
@@ -259,59 +259,59 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 t << "\\\n\t\t" << (*objit);
         }
         if(incrs_out.count() == objs.count()) { //we just switched places, no real incrementals to be done!
-            t << escapeFilePaths(incrs_out).join(QString(" \\\n\t\t")) << endl;
+            t << escapeFilePaths(incrs_out).join(QString(" \\\n\t\t")) << Qt::endl;
         } else if(!incrs_out.count()) {
-            t << endl;
+            t << Qt::endl;
         } else {
             src_incremental = true;
-            t << endl;
+            t << Qt::endl;
             t << "INCREMENTAL_OBJECTS = "
-              << escapeFilePaths(incrs_out).join(QString(" \\\n\t\t")) << endl;
+              << escapeFilePaths(incrs_out).join(QString(" \\\n\t\t")) << Qt::endl;
         }
     } else {
         // Used all over the place in both deps and commands.
-        t << "OBJECTS       = " << valList(escapeDependencyPaths(project->values("OBJECTS"))) << endl;
+        t << "OBJECTS       = " << valList(escapeDependencyPaths(project->values("OBJECTS"))) << Qt::endl;
     }
     if(do_incremental && !src_incremental)
         do_incremental = false;
     t << "DIST          = " << valList(fileFixify(project->values("DISTFILES").toQStringList())) << " "
-                            << fileVarList("HEADERS") << ' ' << fileVarList("SOURCES") << endl;
-    t << "QMAKE_TARGET  = " << fileVar("QMAKE_ORIG_TARGET") << endl;
+                            << fileVarList("HEADERS") << ' ' << fileVarList("SOURCES") << Qt::endl;
+    t << "QMAKE_TARGET  = " << fileVar("QMAKE_ORIG_TARGET") << Qt::endl;
     QString destd = fileVar("DESTDIR");
     // When building on non-MSys MinGW, the path ends with a backslash, which
     // GNU make will interpret that as a line continuation. Doubling the backslash
     // avoids the problem, at the cost of the variable containing *both* backslashes.
     if (destd.endsWith('\\'))
         destd += '\\';
-    t << "DESTDIR       = " << destd << endl;
-    t << "TARGET        = " << fileVar("TARGET") << endl;
+    t << "DESTDIR       = " << destd << Qt::endl;
+    t << "TARGET        = " << fileVar("TARGET") << Qt::endl;
     if(project->isActiveConfig("plugin")) {
-        t << "TARGETD       = " << fileVar("TARGET") << endl;
+        t << "TARGETD       = " << fileVar("TARGET") << Qt::endl;
     } else if(!project->isActiveConfig("staticlib") && project->values("QMAKE_APP_FLAG").isEmpty()) {
-        t << "TARGETA       = " << fileVar("TARGETA") << endl;
+        t << "TARGETA       = " << fileVar("TARGETA") << Qt::endl;
         if(!project->isEmpty("QMAKE_BUNDLE")) {
-            t << "TARGETD       = " << fileVar("TARGET_x.y") << endl;
-            t << "TARGET0       = " << fileVar("TARGET_") << endl;
+            t << "TARGETD       = " << fileVar("TARGET_x.y") << Qt::endl;
+            t << "TARGET0       = " << fileVar("TARGET_") << Qt::endl;
         } else if (!project->isActiveConfig("unversioned_libname")) {
-            t << "TARGET0       = " << fileVar("TARGET_") << endl;
+            t << "TARGET0       = " << fileVar("TARGET_") << Qt::endl;
             if (project->isEmpty("QMAKE_HPUX_SHLIB")) {
-                t << "TARGETD       = " << fileVar("TARGET_x.y.z") << endl;
-                t << "TARGET1       = " << fileVar("TARGET_x") << endl;
-                t << "TARGET2       = " << fileVar("TARGET_x.y") << endl;
+                t << "TARGETD       = " << fileVar("TARGET_x.y.z") << Qt::endl;
+                t << "TARGET1       = " << fileVar("TARGET_x") << Qt::endl;
+                t << "TARGET2       = " << fileVar("TARGET_x.y") << Qt::endl;
             } else {
-                t << "TARGETD       = " << fileVar("TARGET_x") << endl;
+                t << "TARGETD       = " << fileVar("TARGET_x") << Qt::endl;
             }
         }
     }
     writeExtraCompilerVariables(t);
     writeExtraVariables(t);
-    t << endl;
+    t << Qt::endl;
 
     // blasted includes
     const ProStringList &qeui = project->values("QMAKE_EXTRA_INCLUDES");
     ProStringList::ConstIterator it;
     for(it = qeui.begin(); it != qeui.end(); ++it)
-        t << "include " << escapeDependencyPath(*it) << endl;
+        t << "include " << escapeDependencyPath(*it) << Qt::endl;
 
     /* rules */
     t << "first:" << (!project->isActiveConfig("no_default_goal_deps") ? " all" : "") << "\n";
@@ -321,7 +321,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
             ProStringList objects = project->values("OBJECTS");
             for (ProStringList::Iterator it = objects.begin(); it != objects.end(); ++it) {
                 QString d_file = (*it).toQString().replace(QRegExp(Option::obj_ext + "$"), ".d");
-                t << "-include " << escapeDependencyPath(d_file) << endl;
+                t << "-include " << escapeDependencyPath(d_file) << Qt::endl;
                 project->values("QMAKE_DISTCLEAN") << d_file;
             }
         } else {
@@ -379,8 +379,8 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                             QStringList deps = findDependencies((*it).toQString()).filter(QRegExp(
                                         "((^|/)" + Option::h_moc_mod + "|" + Option::cpp_moc_ext + "$)"));
                             if(!deps.isEmpty())
-                                t << d_file_d << ": " << finalizeDependencyPaths(deps).join(' ') << endl;
-                            t << "-include " << d_file_d << endl;
+                                t << d_file_d << ": " << finalizeDependencyPaths(deps).join(' ') << Qt::endl;
+                            t << "-include " << d_file_d << Qt::endl;
                             project->values("QMAKE_DISTCLEAN") += d_file;
                         }
                     }
@@ -399,7 +399,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
         for (ProStringList::ConstIterator it = l.begin(); it != l.end(); ++it)
             t << escapeFilePath(libdir + project->first("QMAKE_PREFIX_STATICLIB") + (*it) + '.'
                                 + project->first("QMAKE_EXTENSION_STATICLIB")) << ' ';
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
     QString target_deps;
     if ((project->isActiveConfig("depend_prl") || project->isActiveConfig("fast_depend_prl"))
@@ -504,7 +504,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
             t << "$(LINK) $(LFLAGS) " << var("QMAKE_LINK_O_FLAG") << "$(TARGET) " << incr_deps << " " << incr_objs << " $(OBJCOMP) $(LIBS)";
             if(!project->isEmpty("QMAKE_POST_LINK"))
                 t << "\n\t" << var("QMAKE_POST_LINK");
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         } else {
             t << depVar("TARGET") << ": " << depVar("PRE_TARGETDEPS") << " $(OBJECTS) "
               << target_deps << ' ' << depVar("POST_TARGETDEPS") << "\n\t";
@@ -517,7 +517,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 if (!project->isEmpty("QMAKE_POST_LINK"))
                     t << "\n\t" << var("QMAKE_POST_LINK");
             }
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         }
         allDeps = ' ' + depVar("TARGET");
     } else if(!project->isActiveConfig("staticlib")) {
@@ -548,7 +548,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 //actual target
                 const QString link_deps = "$(OBJECTS) ";
                 t << incr_target_dir_d << ": " << link_deps << "\n\t"
-                  << "ld -r  -o " << incr_target_dir_f << ' ' << link_deps << endl;
+                  << "ld -r  -o " << incr_target_dir_f << ' ' << link_deps << Qt::endl;
                 //communicated below
                 ProStringList &cmd = project->values("QMAKE_LINK_SHLIB_CMD");
                 cmd[0] = cmd.at(0).toQString().replace(QLatin1String("$(OBJECTS) "), QLatin1String("$(INCREMENTAL_OBJECTS)")); //ick
@@ -606,7 +606,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                   << "-$(MOVE) $(TARGET) " << destdir << "$(TARGET)";
             if(!project->isEmpty("QMAKE_POST_LINK"))
                 t << "\n\t" << var("QMAKE_POST_LINK");
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         } else if(!project->isEmpty("QMAKE_BUNDLE")) {
             bundledFiles << destdir_r + var("TARGET");
             t << "\n\t"
@@ -620,7 +620,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                              " Versions/Current/$(TARGET) $(DESTDIR)$(TARGET0)") << "\n\t";
             if(!project->isEmpty("QMAKE_POST_LINK"))
                 t << "\n\t" << var("QMAKE_POST_LINK");
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         } else if(project->isEmpty("QMAKE_HPUX_SHLIB")) {
             t << "\n\t";
 
@@ -654,7 +654,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
             }
             if(!project->isEmpty("QMAKE_POST_LINK"))
                 t << "\n\t" << var("QMAKE_POST_LINK");
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         } else {
             t << "\n\t"
               << "-$(DEL_FILE) $(TARGET) $(TARGET0)\n\t"
@@ -668,9 +668,9 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                    << "-$(MOVE) $(TARGET0) " << destdir << "$(TARGET0)\n\t";
             if(!project->isEmpty("QMAKE_POST_LINK"))
                 t << "\n\t" << var("QMAKE_POST_LINK");
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         }
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
 
         if (! project->isActiveConfig("plugin")) {
             t << "staticlib: " << depVar("TARGETA") << "\n\n";
@@ -688,7 +688,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 t << "\n\t" << var("QMAKE_POST_LINK");
             if(!project->isEmpty("QMAKE_RANLIB"))
                 t << "\n\t$(RANLIB) $(TARGETA)";
-            t << endl << endl;
+            t << Qt::endl << Qt::endl;
         }
     } else {
         QString destdir_r = project->first("DESTDIR").toQString();
@@ -708,7 +708,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
             t << "\t" << var("QMAKE_POST_LINK") << "\n";
         if (!project->isEmpty("QMAKE_RANLIB"))
             t << "\t$(RANLIB) " << destdir << "$(TARGET)\n";
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
 
     writeMakeQmake(t);
@@ -722,7 +722,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
         }
         if(!meta_files.isEmpty())
             t << escapeDependencyPaths(meta_files).join(" ") << ": \n\t"
-              << "@$(QMAKE) -prl " << escapeFilePath(project->projectFile()) << ' ' << buildArgs(true) << endl;
+              << "@$(QMAKE) -prl " << escapeFilePath(project->projectFile()) << ' ' << buildArgs(true) << Qt::endl;
     }
 
     if (!project->isEmpty("QMAKE_BUNDLE")) {
@@ -743,7 +743,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
               << "@echo \"APPL"
               << (project->isEmpty("QMAKE_PKGINFO_TYPEINFO")
                   ? QString::fromLatin1("????") : project->first("QMAKE_PKGINFO_TYPEINFO").left(4))
-              << "\" > " << pkginfo_f << endl;
+              << "\" > " << pkginfo_f << Qt::endl;
         }
         if (!project->first("QMAKE_BUNDLE_RESOURCE_FILE").isEmpty()) {
             ProString resources = project->first("QMAKE_BUNDLE_RESOURCE_FILE");
@@ -852,7 +852,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                   << "-e \"s,\\$${EXECUTABLE_NAME}," << (app_bundle_name.isEmpty() ? app_bundle_name : plugin_bundle_name) << ",g\" "
                   << "-e \"s,@TYPEINFO@,"<< typeInfo << ",g\" "
                   << "-e \"s,\\$${QMAKE_PKGINFO_TYPEINFO},"<< typeInfo << ",g\" "
-                  << "" << info_plist << " >" << info_plist_out << endl;
+                  << "" << info_plist << " >" << info_plist_out << Qt::endl;
                 //copy the icon
                 if (!project->isEmpty("ICON")) {
                     QString dir = bundle_dir + "Contents/Resources/";
@@ -863,7 +863,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                     t << escapeDependencyPath(icon_path) << ": " << escapeDependencyPath(icon) << "\n\t"
                       << mkdir_p_asstring(dir) << "\n\t"
                       << "@$(DEL_FILE) " << icon_path_f << "\n\t"
-                      << "@$(COPY_FILE) " << escapeFilePath(icon) << ' ' << icon_path_f << endl;
+                      << "@$(COPY_FILE) " << escapeFilePath(icon) << ' ' << icon_path_f << Qt::endl;
                 }
             } else {
                 ProString lib_bundle_name = var("QMAKE_FRAMEWORK_BUNDLE_NAME");
@@ -880,7 +880,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                   << "-e \"s,\\$${EXECUTABLE_NAME}," << lib_bundle_name << ",g\" "
                   << "-e \"s,@TYPEINFO@," << typeInfo << ",g\" "
                   << "-e \"s,\\$${QMAKE_PKGINFO_TYPEINFO}," << typeInfo << ",g\" "
-                  << "" << info_plist << " >" << info_plist_out << endl;
+                  << "" << info_plist << " >" << info_plist_out << Qt::endl;
             }
             break;
         } // project->isActiveConfig("no_plist")
@@ -924,10 +924,10 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                     QFileInfo fi(fileInfo(fn));
                     if(fi.isDir())
                         t << "@$(DEL_FILE) -r " << dst << "\n\t"
-                          << "@$(COPY_DIR) " << src << " " << dst << endl;
+                          << "@$(COPY_DIR) " << src << " " << dst << Qt::endl;
                     else
                         t << "@$(DEL_FILE) " << dst << "\n\t"
-                          << "@$(COPY_FILE) " << src << " " << dst << endl;
+                          << "@$(COPY_FILE) " << src << " " << dst << Qt::endl;
                 }
             }
         }
@@ -940,7 +940,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 alldeps << symIt.key();
                 t << escapeDependencyPath(symIt.key()) << ":\n\t"
                   << mkdir_p_asstring(bundle_dir) << "\n\t"
-                  << "@$(SYMLINK) " << escapeFilePath(symIt.value()) << ' ' << bundle_dir_f << endl;
+                  << "@$(SYMLINK) " << escapeFilePath(symIt.value()) << ' ' << bundle_dir_f << Qt::endl;
             }
 
             if (!project->isActiveConfig("shallow_bundle")) {
@@ -952,24 +952,24 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                   << mkdir_p_asstring(bundle_dir + "Versions") << "\n\t"
                   << "@-$(DEL_FILE) " << currentLink_f << "\n\t"
                   << "@$(SYMLINK) " << project->first("QMAKE_FRAMEWORK_VERSION")
-                             << ' ' << currentLink_f << endl;
+                             << ' ' << currentLink_f << Qt::endl;
             }
         }
     }
 
-    t << endl << "all: " << deps
+    t << Qt::endl << "all: " << deps
       << valGlue(escapeDependencyPaths(project->values("ALL_DEPS")), " \\\n\t\t", " \\\n\t\t", "")
-      << allDeps << endl << endl;
+      << allDeps << Qt::endl << Qt::endl;
 
     t << "dist: distdir FORCE\n\t";
     t << "(cd `dirname $(DISTDIR)` && $(TAR) $(DISTNAME).tar $(DISTNAME) && $(COMPRESS) $(DISTNAME).tar)"
          " && $(MOVE) `dirname $(DISTDIR)`" << Option::dir_sep << "$(DISTNAME).tar.gz ."
          " && $(DEL_FILE) -r $(DISTDIR)";
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     t << "distdir: FORCE\n\t"
       << mkdir_p_asstring("$(DISTDIR)", false) << "\n\t"
-      << "$(COPY_FILE) --parents $(DIST) $(DISTDIR)" << Option::dir_sep << endl;
+      << "$(COPY_FILE) --parents $(DIST) $(DISTDIR)" << Option::dir_sep << Qt::endl;
     if(!project->isEmpty("QMAKE_EXTRA_COMPILERS")) {
         const ProStringList &quc = project->values("QMAKE_EXTRA_COMPILERS");
         for (ProStringList::ConstIterator it = quc.begin(); it != quc.end(); ++it) {
@@ -979,20 +979,20 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                 if(val.isEmpty())
                     continue;
                 t << "\t$(COPY_FILE) --parents " << escapeFilePaths(val).join(' ')
-                                                 << " $(DISTDIR)" << Option::dir_sep << endl;
+                                                 << " $(DISTDIR)" << Option::dir_sep << Qt::endl;
             }
         }
     }
     if(!project->isEmpty("TRANSLATIONS"))
-        t << "\t$(COPY_FILE) --parents " << fileVar("TRANSLATIONS") << " $(DISTDIR)" << Option::dir_sep << endl;
-    t << endl << endl;
+        t << "\t$(COPY_FILE) --parents " << fileVar("TRANSLATIONS") << " $(DISTDIR)" << Option::dir_sep << Qt::endl;
+    t << Qt::endl << Qt::endl;
 
     QString clean_targets = " compiler_clean " + depVar("CLEAN_DEPS");
     if(do_incremental) {
         t << "incrclean:\n";
         if(src_incremental)
             t << "\t-$(DEL_FILE) $(INCREMENTAL_OBJECTS)\n";
-        t << endl;
+        t << Qt::endl;
     }
 
     t << "clean:" << clean_targets << "\n\t";
@@ -1060,7 +1060,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
         t << "-$(DEL_FILE) $(INCREMENTAL_OBJECTS)\n\t";
     t << fileVarGlue("QMAKE_CLEAN","-$(DEL_FILE) "," ","\n\t")
       << "-$(DEL_FILE) *~ core *.core\n"
-      << fileVarGlue("CLEAN_FILES","\t-$(DEL_FILE) "," ","") << endl << endl;
+      << fileVarGlue("CLEAN_FILES","\t-$(DEL_FILE) "," ","") << Qt::endl << Qt::endl;
 
     ProString destdir = project->first("DESTDIR");
     if (!destdir.isEmpty() && !destdir.endsWith(Option::dir_sep))
@@ -1068,7 +1068,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
     t << "distclean: clean " << depVar("DISTCLEAN_DEPS") << '\n';
     if(!project->isEmpty("QMAKE_BUNDLE")) {
         QString bundlePath = escapeFilePath(destdir + project->first("QMAKE_BUNDLE"));
-        t << "\t-$(DEL_FILE) -r " << bundlePath << endl;
+        t << "\t-$(DEL_FILE) -r " << bundlePath << Qt::endl;
     } else if (project->isActiveConfig("staticlib") || project->isActiveConfig("plugin")) {
         t << "\t-$(DEL_FILE) " << escapeFilePath(destdir) << "$(TARGET) \n";
     } else if (project->values("QMAKE_APP_FLAG").isEmpty()) {
@@ -1087,9 +1087,9 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
     {
         QString ofile = fileFixify(Option::output.fileName());
         if(!ofile.isEmpty())
-            t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << endl;
+            t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << Qt::endl;
     }
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     t << "####### Sub-libraries\n\n";
     if (!project->values("SUBLIBS").isEmpty()) {
@@ -1100,7 +1100,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
         for (it = l.begin(); it != l.end(); ++it)
             t << escapeDependencyPath(libdir + project->first("QMAKE_PREFIX_STATICLIB") + (*it) + '.'
                                       + project->first("QMAKE_EXTENSION_STATICLIB")) << ":\n\t"
-              << var(ProKey("MAKELIB" + *it)) << endl << endl;
+              << var(ProKey("MAKELIB" + *it)) << Qt::endl << Qt::endl;
     }
 
     if(doPrecompiledHeaders() && !project->isEmpty("PRECOMPILED_HEADER")) {
@@ -1184,7 +1184,7 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
                     compilerExecutable = "$(CXX)";
 
                 // compile command
-                t << "\n\t" << compilerExecutable << cflags << " $(INCPATH) " << pchArchFlags << endl << endl;
+                t << "\n\t" << compilerExecutable << cflags << " $(INCPATH) " << pchArchFlags << Qt::endl << Qt::endl;
             }
         }
     }
diff --git a/qmake/generators/win32/mingw_make.cpp b/qmake/generators/win32/mingw_make.cpp
index de7363e51b..eb771a695a 100644
--- a/qmake/generators/win32/mingw_make.cpp
+++ b/qmake/generators/win32/mingw_make.cpp
@@ -99,7 +99,7 @@ bool MingwMakefileGenerator::writeMakefile(QTextStream &t)
             writePkgConfigFile();
 
         if(Option::mkfile::do_stub_makefile) {
-            t << "QMAKE    = " << var("QMAKE_QMAKE") << endl;
+            t << "QMAKE    = " << var("QMAKE_QMAKE") << Qt::endl;
             const ProStringList &qut = project->values("QMAKE_EXTRA_TARGETS");
             for (ProStringList::ConstIterator it = qut.begin(); it != qut.end(); ++it)
                 t << escapeDependencyPath(*it) << ' ';
@@ -148,7 +148,7 @@ void createLdResponseFile(const QString &fileName, const ProStringList &objList)
                 .replace(QLatin1Char('\t'), QLatin1String("\\\t"))
                 .replace(QLatin1Char('"'), QLatin1String("\\\""))
                 .replace(QLatin1Char('\''), QLatin1String("\\'"));
-            t << path << endl;
+            t << path << Qt::endl;
         }
         t.flush();
         file.close();
@@ -162,9 +162,9 @@ void createArObjectScriptFile(const QString &fileName, const QString &target, co
     if (file.open(QIODevice::WriteOnly | QIODevice::Text)) {
         QTextStream t(&file);
         // ### quoting?
-        t << "CREATE " << target << endl;
+        t << "CREATE " << target << Qt::endl;
         for (ProStringList::ConstIterator it = objList.constBegin(); it != objList.constEnd(); ++it) {
-            t << "ADDMOD " << *it << endl;
+            t << "ADDMOD " << *it << Qt::endl;
         }
         t << "SAVE\n";
         t.flush();
@@ -183,13 +183,13 @@ void MingwMakefileGenerator::writeMingwParts(QTextStream &t)
           << finalizeDependencyPaths(findDependencies(header)).join(" \\\n\t\t")
           << "\n\t" << mkdir_p_asstring(preCompHeaderOut)
           << "\n\t$(CC) -x c-header -c $(CFLAGS) $(INCPATH) -o " << escapeFilePath(cHeader)
-          << ' ' << escapeFilePath(header) << endl << endl;
+          << ' ' << escapeFilePath(header) << Qt::endl << Qt::endl;
         QString cppHeader = preCompHeaderOut + Option::dir_sep + "c++";
         t << escapeDependencyPath(cppHeader) << ": " << escapeDependencyPath(header) << " "
           << finalizeDependencyPaths(findDependencies(header)).join(" \\\n\t\t")
           << "\n\t" << mkdir_p_asstring(preCompHeaderOut)
           << "\n\t$(CXX) -x c++-header -c $(CXXFLAGS) $(INCPATH) -o " << escapeFilePath(cppHeader)
-          << ' ' << escapeFilePath(header) << endl << endl;
+          << ' ' << escapeFilePath(header) << Qt::endl << Qt::endl;
     }
 }
 
@@ -274,21 +274,21 @@ void MingwMakefileGenerator::writeIncPart(QTextStream &t)
             t << "-I";
         t << escapeFilePath(inc) << ' ';
     }
-    t << endl;
+    t << Qt::endl;
 }
 
 void MingwMakefileGenerator::writeLibsPart(QTextStream &t)
 {
     if(project->isActiveConfig("staticlib") && project->first("TEMPLATE") == "lib") {
-        t << "LIB        =        " << var("QMAKE_LIB") << endl;
+        t << "LIB        =        " << var("QMAKE_LIB") << Qt::endl;
     } else {
-        t << "LINKER      =        " << var("QMAKE_LINK") << endl;
-        t << "LFLAGS        =        " << var("QMAKE_LFLAGS") << endl;
+        t << "LINKER      =        " << var("QMAKE_LINK") << Qt::endl;
+        t << "LFLAGS        =        " << var("QMAKE_LFLAGS") << Qt::endl;
         t << "LIBS        =        "
           << fixLibFlags("LIBS").join(' ') << ' '
           << fixLibFlags("LIBS_PRIVATE").join(' ') << ' '
           << fixLibFlags("QMAKE_LIBS").join(' ') << ' '
-          << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << endl;
+          << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << Qt::endl;
     }
 }
 
@@ -350,7 +350,7 @@ void MingwMakefileGenerator::writeBuildRulesPart(QTextStream &t)
     }
     if(!project->isEmpty("QMAKE_POST_LINK"))
         t << "\n\t" <<var("QMAKE_POST_LINK");
-    t << endl;
+    t << Qt::endl;
 }
 
 void MingwMakefileGenerator::writeRcFilePart(QTextStream &t)
diff --git a/qmake/generators/win32/msbuild_objectmodel.cpp b/qmake/generators/win32/msbuild_objectmodel.cpp
index 08a8c2168d..3116238aa0 100644
--- a/qmake/generators/win32/msbuild_objectmodel.cpp
+++ b/qmake/generators/win32/msbuild_objectmodel.cpp
@@ -34,6 +34,7 @@
 #include <qscopedpointer.h>
 #include <qstringlist.h>
 #include <qfileinfo.h>
+#include <qregexp.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/qmake/generators/win32/msvc_nmake.cpp b/qmake/generators/win32/msvc_nmake.cpp
index 63d89a5388..f48eea9202 100644
--- a/qmake/generators/win32/msvc_nmake.cpp
+++ b/qmake/generators/win32/msvc_nmake.cpp
@@ -143,7 +143,7 @@ void NmakeMakefileGenerator::writeNmakeParts(QTextStream &t)
         t << escapeDependencyPath(precompObj) << ": " << escapeDependencyPath(precompH) << ' '
           << finalizeDependencyPaths(findDependencies(precompH)).join(" \\\n\t\t")
           << "\n\t$(CXX) " + precompRule +" $(CXXFLAGS) $(INCPATH) -TP "
-          << escapeFilePath(precompH) << endl << endl;
+          << escapeFilePath(precompH) << Qt::endl << Qt::endl;
     }
     if (usePCHC) {
         QString precompRuleC = QString("-c -Yc -Fp%1 -Fo%2")
@@ -151,7 +151,7 @@ void NmakeMakefileGenerator::writeNmakeParts(QTextStream &t)
         t << escapeDependencyPath(precompObjC) << ": " << escapeDependencyPath(precompH) << ' '
           << finalizeDependencyPaths(findDependencies(precompH)).join(" \\\n\t\t")
           << "\n\t$(CC) " + precompRuleC +" $(CFLAGS) $(INCPATH) -TC "
-          << escapeFilePath(precompH) << endl << endl;
+          << escapeFilePath(precompH) << Qt::endl << Qt::endl;
     }
 }
 
@@ -314,7 +314,7 @@ void NmakeMakefileGenerator::writeImplicitRulesPart(QTextStream &t)
         t << " " << (*cit);
     for(QStringList::Iterator cppit = Option::cpp_ext.begin(); cppit != Option::cpp_ext.end(); ++cppit)
         t << " " << (*cppit);
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     bool useInferenceRules = !project->isActiveConfig("no_batch");
     QSet<QString> source_directories;
@@ -346,7 +346,7 @@ void NmakeMakefileGenerator::writeImplicitRulesPart(QTextStream &t)
         QHash<QString, QString> fileNames;
         bool duplicatesFound = false;
         const QStringList sourceFilesFilter = sourceFilesForImplicitRulesFilter();
-        QStringList fixifiedSourceDirs = fileFixify(source_directories.toList(), FileFixifyAbsolute);
+        QStringList fixifiedSourceDirs = fileFixify(QList<QString>(source_directories.constBegin(), source_directories.constEnd()), FileFixifyAbsolute);
         fixifiedSourceDirs.removeDuplicates();
         for (const QString &sourceDir : qAsConst(fixifiedSourceDirs)) {
             QDirIterator dit(sourceDir, sourceFilesFilter, QDir::Files | QDir::NoDotAndDotDot);
@@ -393,9 +393,9 @@ void NmakeMakefileGenerator::writeImplicitRulesPart(QTextStream &t)
         }
     } else {
         for(QStringList::Iterator cppit = Option::cpp_ext.begin(); cppit != Option::cpp_ext.end(); ++cppit)
-            t << (*cppit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CXX_IMP") << endl << endl;
+            t << (*cppit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CXX_IMP") << Qt::endl << Qt::endl;
         for(QStringList::Iterator cit = Option::c_ext.begin(); cit != Option::c_ext.end(); ++cit)
-            t << (*cit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CC_IMP") << endl << endl;
+            t << (*cit) << Option::obj_ext << ":\n\t" << var("QMAKE_RUN_CC_IMP") << Qt::endl << Qt::endl;
     }
 
 }
@@ -498,7 +498,7 @@ void NmakeMakefileGenerator::writeBuildRulesPart(QTextStream &t)
     if(!project->isEmpty("QMAKE_POST_LINK")) {
         t << "\n\t" << var("QMAKE_POST_LINK");
     }
-    t << endl;
+    t << Qt::endl;
 }
 
 void NmakeMakefileGenerator::writeLinkCommand(QTextStream &t, const QString &extraFlags, const QString &extraInlineFileContent)
diff --git a/qmake/generators/win32/msvc_objectmodel.cpp b/qmake/generators/win32/msvc_objectmodel.cpp
index 15c8838054..45f23e52bd 100644
--- a/qmake/generators/win32/msvc_objectmodel.cpp
+++ b/qmake/generators/win32/msvc_objectmodel.cpp
@@ -34,6 +34,7 @@
 
 #include <qscopedpointer.h>
 #include <qfileinfo.h>
+#include <qregexp.h>
 
 using namespace QMakeInternal;
 
diff --git a/qmake/generators/win32/msvc_objectmodel.h b/qmake/generators/win32/msvc_objectmodel.h
index b356f1bb73..33eff0d914 100644
--- a/qmake/generators/win32/msvc_objectmodel.h
+++ b/qmake/generators/win32/msvc_objectmodel.h
@@ -923,7 +923,7 @@ struct VCFilterFile
 inline QDebug operator<<(QDebug dbg, const VCFilterFile &p)
 {
     dbg.nospace() << "VCFilterFile(file(" << p.file
-                  << ") excludeFromBuild(" << p.excludeFromBuild << "))" << endl;
+                  << ") excludeFromBuild(" << p.excludeFromBuild << "))" << Qt::endl;
     return dbg.space();
 }
 #endif
diff --git a/qmake/generators/win32/winmakefile.cpp b/qmake/generators/win32/winmakefile.cpp
index 16f9361d13..8ee86ac395 100644
--- a/qmake/generators/win32/winmakefile.cpp
+++ b/qmake/generators/win32/winmakefile.cpp
@@ -320,11 +320,11 @@ void Win32MakefileGenerator::processRcFileVar()
         int rcCodePage = project->intValue("RC_CODEPAGE", 1200);    // default: Unicode
 
         ts << "#include <windows.h>\n";
-        ts << endl;
+        ts << Qt::endl;
         if (!rcIcons.isEmpty()) {
             for (int i = 0; i < rcIcons.size(); ++i)
-                ts << QString("IDI_ICON%1\tICON\tDISCARDABLE\t%2").arg(i + 1).arg(cQuoted(rcIcons[i])) << endl;
-            ts << endl;
+                ts << QString("IDI_ICON%1\tICON\tDISCARDABLE\t%2").arg(i + 1).arg(cQuoted(rcIcons[i])) << Qt::endl;
+            ts << Qt::endl;
         }
         if (!manifestFile.isEmpty()) {
             QString manifestResourceId;
@@ -335,8 +335,8 @@ void Win32MakefileGenerator::processRcFileVar()
             ts << manifestResourceId << " RT_MANIFEST \"" << manifestFile << "\"\n";
         }
         ts << "VS_VERSION_INFO VERSIONINFO\n";
-        ts << "\tFILEVERSION " << QString(versionString).replace(".", ",") << endl;
-        ts << "\tPRODUCTVERSION " << QString(versionString).replace(".", ",") << endl;
+        ts << "\tFILEVERSION " << QString(versionString).replace(".", ",") << Qt::endl;
+        ts << "\tPRODUCTVERSION " << QString(versionString).replace(".", ",") << Qt::endl;
         ts << "\tFILEFLAGSMASK 0x3fL\n";
         ts << "#ifdef _DEBUG\n";
         ts << "\tFILEFLAGS VS_FF_DEBUG\n";
@@ -369,11 +369,11 @@ void Win32MakefileGenerator::processRcFileVar()
         ts << "\t\tBEGIN\n";
         ts << "\t\t\tVALUE \"Translation\", "
            << QString("0x%1").arg(rcLang, 4, 16, QLatin1Char('0'))
-           << ", " << QString("%1").arg(rcCodePage, 4) << endl;
+           << ", " << QString("%1").arg(rcCodePage, 4) << Qt::endl;
         ts << "\t\tEND\n";
         ts << "\tEND\n";
         ts << "/* End of Version info */\n";
-        ts << endl;
+        ts << Qt::endl;
 
         ts.flush();
 
@@ -470,7 +470,7 @@ void Win32MakefileGenerator::writeCleanParts(QTextStream &t)
             }
         }
     }
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     t << "distclean: clean " << depVar("DISTCLEAN_DEPS");
     {
@@ -503,9 +503,9 @@ void Win32MakefileGenerator::writeCleanParts(QTextStream &t)
     {
         QString ofile = fileFixify(Option::output.fileName());
         if(!ofile.isEmpty())
-            t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << endl;
+            t << "\t-$(DEL_FILE) " << escapeFilePath(ofile) << Qt::endl;
     }
-    t << endl;
+    t << Qt::endl;
 }
 
 void Win32MakefileGenerator::writeIncPart(QTextStream &t)
@@ -519,7 +519,7 @@ void Win32MakefileGenerator::writeIncPart(QTextStream &t)
         if(!inc.isEmpty())
             t << "-I" << escapeFilePath(inc) << ' ';
     }
-    t << endl;
+    t << Qt::endl;
 }
 
 void Win32MakefileGenerator::writeStandardParts(QTextStream &t)
@@ -527,51 +527,51 @@ void Win32MakefileGenerator::writeStandardParts(QTextStream &t)
     writeExportedVariables(t);
 
     t << "####### Compiler, tools and options\n\n";
-    t << "CC            = " << var("QMAKE_CC") << endl;
-    t << "CXX           = " << var("QMAKE_CXX") << endl;
+    t << "CC            = " << var("QMAKE_CC") << Qt::endl;
+    t << "CXX           = " << var("QMAKE_CXX") << Qt::endl;
     t << "DEFINES       = "
       << varGlue("PRL_EXPORT_DEFINES","-D"," -D"," ")
-      << varGlue("DEFINES","-D"," -D","") << endl;
+      << varGlue("DEFINES","-D"," -D","") << Qt::endl;
     t << "CFLAGS        = " << var("QMAKE_CFLAGS") << " $(DEFINES)\n";
     t << "CXXFLAGS      = " << var("QMAKE_CXXFLAGS") << " $(DEFINES)\n";
 
     writeIncPart(t);
     writeLibsPart(t);
 
-    t << "QMAKE         = " << var("QMAKE_QMAKE") << endl;
+    t << "QMAKE         = " << var("QMAKE_QMAKE") << Qt::endl;
     t << "IDC           = " << (project->isEmpty("QMAKE_IDC") ? QString("idc") : var("QMAKE_IDC"))
-                            << endl;
+                            << Qt::endl;
     t << "IDL           = " << (project->isEmpty("QMAKE_IDL") ? QString("midl") : var("QMAKE_IDL"))
-                            << endl;
-    t << "ZIP           = " << var("QMAKE_ZIP") << endl;
-    t << "DEF_FILE      = " << fileVar("DEF_FILE") << endl;
-    t << "RES_FILE      = " << fileVar("RES_FILE") << endl; // Not on mingw, can't see why not though...
-    t << "COPY          = " << var("QMAKE_COPY") << endl;
-    t << "SED           = " << var("QMAKE_STREAM_EDITOR") << endl;
-    t << "COPY_FILE     = " << var("QMAKE_COPY_FILE") << endl;
-    t << "COPY_DIR      = " << var("QMAKE_COPY_DIR") << endl;
-    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << endl;
-    t << "DEL_DIR       = " << var("QMAKE_DEL_DIR") << endl;
-    t << "MOVE          = " << var("QMAKE_MOVE") << endl;
-    t << "CHK_DIR_EXISTS= " << var("QMAKE_CHK_DIR_EXISTS") << endl;
-    t << "MKDIR         = " << var("QMAKE_MKDIR") << endl;
-    t << "INSTALL_FILE    = " << var("QMAKE_INSTALL_FILE") << endl;
-    t << "INSTALL_PROGRAM = " << var("QMAKE_INSTALL_PROGRAM") << endl;
-    t << "INSTALL_DIR     = " << var("QMAKE_INSTALL_DIR") << endl;
-    t << "QINSTALL        = " << var("QMAKE_QMAKE") << " -install qinstall" << endl;
-    t << "QINSTALL_PROGRAM = " << var("QMAKE_QMAKE") << " -install qinstall -exe" << endl;
-    t << endl;
+                            << Qt::endl;
+    t << "ZIP           = " << var("QMAKE_ZIP") << Qt::endl;
+    t << "DEF_FILE      = " << fileVar("DEF_FILE") << Qt::endl;
+    t << "RES_FILE      = " << fileVar("RES_FILE") << Qt::endl; // Not on mingw, can't see why not though...
+    t << "COPY          = " << var("QMAKE_COPY") << Qt::endl;
+    t << "SED           = " << var("QMAKE_STREAM_EDITOR") << Qt::endl;
+    t << "COPY_FILE     = " << var("QMAKE_COPY_FILE") << Qt::endl;
+    t << "COPY_DIR      = " << var("QMAKE_COPY_DIR") << Qt::endl;
+    t << "DEL_FILE      = " << var("QMAKE_DEL_FILE") << Qt::endl;
+    t << "DEL_DIR       = " << var("QMAKE_DEL_DIR") << Qt::endl;
+    t << "MOVE          = " << var("QMAKE_MOVE") << Qt::endl;
+    t << "CHK_DIR_EXISTS= " << var("QMAKE_CHK_DIR_EXISTS") << Qt::endl;
+    t << "MKDIR         = " << var("QMAKE_MKDIR") << Qt::endl;
+    t << "INSTALL_FILE    = " << var("QMAKE_INSTALL_FILE") << Qt::endl;
+    t << "INSTALL_PROGRAM = " << var("QMAKE_INSTALL_PROGRAM") << Qt::endl;
+    t << "INSTALL_DIR     = " << var("QMAKE_INSTALL_DIR") << Qt::endl;
+    t << "QINSTALL        = " << var("QMAKE_QMAKE") << " -install qinstall" << Qt::endl;
+    t << "QINSTALL_PROGRAM = " << var("QMAKE_QMAKE") << " -install qinstall -exe" << Qt::endl;
+    t << Qt::endl;
 
     t << "####### Output directory\n\n";
     if(!project->values("OBJECTS_DIR").isEmpty())
-        t << "OBJECTS_DIR   = " << escapeFilePath(var("OBJECTS_DIR").remove(QRegExp("\\\\$"))) << endl;
+        t << "OBJECTS_DIR   = " << escapeFilePath(var("OBJECTS_DIR").remove(QRegExp("\\\\$"))) << Qt::endl;
     else
         t << "OBJECTS_DIR   = . \n";
-    t << endl;
+    t << Qt::endl;
 
     t << "####### Files\n\n";
     t << "SOURCES       = " << valList(escapeFilePaths(project->values("SOURCES")))
-      << " " << valList(escapeFilePaths(project->values("GENERATED_SOURCES"))) << endl;
+      << " " << valList(escapeFilePaths(project->values("GENERATED_SOURCES"))) << Qt::endl;
 
     // do this here so we can set DEST_TARGET to be the complete path to the final target if it is needed.
     QString orgDestDir = var("DESTDIR");
@@ -587,14 +587,14 @@ void Win32MakefileGenerator::writeStandardParts(QTextStream &t)
     writeExtraVariables(t);
 
     t << "DIST          = " << fileVarList("DISTFILES") << ' '
-      << fileVarList("HEADERS") << ' ' << fileVarList("SOURCES") << endl;
-    t << "QMAKE_TARGET  = " << fileVar("QMAKE_ORIG_TARGET") << endl;  // unused
+      << fileVarList("HEADERS") << ' ' << fileVarList("SOURCES") << Qt::endl;
+    t << "QMAKE_TARGET  = " << fileVar("QMAKE_ORIG_TARGET") << Qt::endl;  // unused
     // The comment is important to maintain variable compatibility with Unix
     // Makefiles, while not interpreting a trailing-slash as a linebreak
     t << "DESTDIR        = " << escapeFilePath(destDir) << " #avoid trailing-slash linebreak\n";
-    t << "TARGET         = " << escapeFilePath(target) << endl;
-    t << "DESTDIR_TARGET = " << fileVar("DEST_TARGET") << endl;
-    t << endl;
+    t << "TARGET         = " << escapeFilePath(target) << Qt::endl;
+    t << "DESTDIR_TARGET = " << fileVar("DEST_TARGET") << Qt::endl;
+    t << Qt::endl;
 
     writeImplicitRulesPart(t);
 
@@ -606,10 +606,10 @@ void Win32MakefileGenerator::writeStandardParts(QTextStream &t)
             const ProStringList &dlldirs = project->values("DLLDESTDIR");
             for (ProStringList::ConstIterator dlldir = dlldirs.begin(); dlldir != dlldirs.end(); ++dlldir) {
                 t << "\t-$(COPY_FILE) $(DESTDIR_TARGET) "
-                  << escapeFilePath(Option::fixPathToTargetOS((*dlldir).toQString(), false)) << endl;
+                  << escapeFilePath(Option::fixPathToTargetOS((*dlldir).toQString(), false)) << Qt::endl;
             }
         }
-        t << endl;
+        t << Qt::endl;
 
         writeRcFilePart(t);
     }
@@ -642,33 +642,33 @@ void Win32MakefileGenerator::writeStandardParts(QTextStream &t)
             }
         }
     }
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 
     writeCleanParts(t);
     writeExtraTargets(t);
     writeExtraCompilerTargets(t);
-    t << endl << endl;
+    t << Qt::endl << Qt::endl;
 }
 
 void Win32MakefileGenerator::writeLibsPart(QTextStream &t)
 {
     if(project->isActiveConfig("staticlib") && project->first("TEMPLATE") == "lib") {
-        t << "LIBAPP        = " << var("QMAKE_LIB") << endl;
-        t << "LIBFLAGS      = " << var("QMAKE_LIBFLAGS") << endl;
+        t << "LIBAPP        = " << var("QMAKE_LIB") << Qt::endl;
+        t << "LIBFLAGS      = " << var("QMAKE_LIBFLAGS") << Qt::endl;
     } else {
-        t << "LINKER        = " << var("QMAKE_LINK") << endl;
-        t << "LFLAGS        = " << var("QMAKE_LFLAGS") << endl;
+        t << "LINKER        = " << var("QMAKE_LINK") << Qt::endl;
+        t << "LFLAGS        = " << var("QMAKE_LFLAGS") << Qt::endl;
         t << "LIBS          = " << fixLibFlags("LIBS").join(' ') << ' '
                                 << fixLibFlags("LIBS_PRIVATE").join(' ') << ' '
                                 << fixLibFlags("QMAKE_LIBS").join(' ') << ' '
-                                << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << endl;
+                                << fixLibFlags("QMAKE_LIBS_PRIVATE").join(' ') << Qt::endl;
     }
 }
 
 void Win32MakefileGenerator::writeObjectsPart(QTextStream &t)
 {
     // Used in both deps and commands.
-    t << "OBJECTS       = " << valList(escapeDependencyPaths(project->values("OBJECTS"))) << endl;
+    t << "OBJECTS       = " << valList(escapeDependencyPaths(project->values("OBJECTS"))) << Qt::endl;
 }
 
 void Win32MakefileGenerator::writeImplicitRulesPart(QTextStream &t)
@@ -710,7 +710,7 @@ void Win32MakefileGenerator::writeRcFilePart(QTextStream &t)
           << var("QMAKE_RC") << (project->isActiveConfig("debug") ? " -D_DEBUG" : "")
           << defines << incPathStr << " -fo " << escapeFilePath(res_file)
           << ' ' << escapeFilePath(rc_file);
-        t << endl << endl;
+        t << Qt::endl << Qt::endl;
     }
 }
 
diff --git a/qmake/generators/xmloutput.cpp b/qmake/generators/xmloutput.cpp
index e92749a126..2f48763550 100644
--- a/qmake/generators/xmloutput.cpp
+++ b/qmake/generators/xmloutput.cpp
@@ -237,7 +237,7 @@ void XmlOutput::newTagOpen(const QString &tag)
     closeOpen();
 
     if (format == NewLine)
-        xmlFile << endl << currentIndent;
+        xmlFile << Qt::endl << currentIndent;
     xmlFile << '<' << doConversion(tag);
     currentState = Attribute;
     tagStack.append(tag);
@@ -271,7 +271,7 @@ void XmlOutput::closeTag()
         case Tag:
             decreaseIndent(); // <--- Pre-decrease indent
             if (format == NewLine)
-                xmlFile << endl << currentIndent;
+                xmlFile << Qt::endl << currentIndent;
             xmlFile << "</" << doConversion(tagStack.last()) << '>';
             tagStack.pop_back();
             break;
@@ -343,7 +343,7 @@ void XmlOutput::addAttribute(const QString &attribute, const QString &value)
             break;
     }
     if (format == NewLine)
-        xmlFile << endl;
+        xmlFile << Qt::endl;
     xmlFile << currentIndent << doConversion(attribute) << "=\"" << doConversion(value) << "\"";
 }
 
diff --git a/qmake/library/ioutils.cpp b/qmake/library/ioutils.cpp
index 3e49a99cd5..d2171274d8 100644
--- a/qmake/library/ioutils.cpp
+++ b/qmake/library/ioutils.cpp
@@ -30,6 +30,7 @@
 
 #include <qdir.h>
 #include <qfile.h>
+#include <qregexp.h>
 
 #ifdef Q_OS_WIN
 #  include <windows.h>
diff --git a/qmake/library/proitems.h b/qmake/library/proitems.h
index 71e5e05367..6882f2802f 100644
--- a/qmake/library/proitems.h
+++ b/qmake/library/proitems.h
@@ -429,7 +429,7 @@ class ProFunctionDef {
 public:
     ProFunctionDef(ProFile *pro, int offset) : m_pro(pro), m_offset(offset) { m_pro->ref(); }
     ProFunctionDef(const ProFunctionDef &o) : m_pro(o.m_pro), m_offset(o.m_offset) { m_pro->ref(); }
-    ProFunctionDef(ProFunctionDef &&other) Q_DECL_NOTHROW
+    ProFunctionDef(ProFunctionDef &&other) noexcept
         : m_pro(other.m_pro), m_offset(other.m_offset) { other.m_pro = nullptr; }
     ~ProFunctionDef() { m_pro->deref(); }
     ProFunctionDef &operator=(const ProFunctionDef &o)
@@ -442,13 +442,13 @@ public:
         }
         return *this;
     }
-    ProFunctionDef &operator=(ProFunctionDef &&other) Q_DECL_NOTHROW
+    ProFunctionDef &operator=(ProFunctionDef &&other) noexcept
     {
         ProFunctionDef moved(std::move(other));
         swap(moved);
         return *this;
     }
-    void swap(ProFunctionDef &other) Q_DECL_NOTHROW
+    void swap(ProFunctionDef &other) noexcept
     {
         qSwap(m_pro, other.m_pro);
         qSwap(m_offset, other.m_offset);
diff --git a/qmake/library/qmakebuiltins.cpp b/qmake/library/qmakebuiltins.cpp
index dd7766c8e0..3c4e509fc6 100644
--- a/qmake/library/qmakebuiltins.cpp
+++ b/qmake/library/qmakebuiltins.cpp
@@ -882,8 +882,7 @@ QMakeEvaluator::VisitReturn QMakeEvaluator::evaluateBuiltinExpand(
         ret += values(map(args.at(0)));
         break;
     case E_LIST: {
-        QString tmp;
-        tmp.sprintf(".QMAKE_INTERNAL_TMP_variableName_%d", m_listCount++);
+        QString tmp(QString::asprintf(".QMAKE_INTERNAL_TMP_variableName_%d", m_listCount++));
         ret = ProStringList(ProString(tmp));
         ProStringList lst;
         for (const ProString &arg : args)
diff --git a/qmake/library/qmakeevaluator_p.h b/qmake/library/qmakeevaluator_p.h
index f888bc5765..da83ff0de2 100644
--- a/qmake/library/qmakeevaluator_p.h
+++ b/qmake/library/qmakeevaluator_p.h
@@ -31,8 +31,6 @@
 
 #include "proitems.h"
 
-#include <qregexp.h>
-
 #define debugMsg if (!m_debugLevel) {} else debugMsgInternal
 #define traceMsg if (!m_debugLevel) {} else traceMsgInternal
 #ifdef PROEVALUATOR_DEBUG
diff --git a/qmake/library/qmakeglobals.cpp b/qmake/library/qmakeglobals.cpp
index daf4707779..1d76cecc45 100644
--- a/qmake/library/qmakeglobals.cpp
+++ b/qmake/library/qmakeglobals.cpp
@@ -38,7 +38,6 @@
 #include <qfile.h>
 #include <qfileinfo.h>
 #include <qlist.h>
-#include <qregexp.h>
 #include <qset.h>
 #include <qstack.h>
 #include <qstring.h>
diff --git a/qmake/qmake.pro b/qmake/qmake.pro
index 5399e8c298..6a6116c8db 100644
--- a/qmake/qmake.pro
+++ b/qmake/qmake.pro
@@ -96,7 +96,7 @@ HEADERS += \
 bp = $$shadowed(..)
 INCLUDEPATH += \
     $$bp/include $$bp/include/QtCore \
-    $$bp/include/QtCore/$$QT_VERSION $$bp/include/QtCore/$$QT_VERSION/QtCore
+    $$bp/include/QtCore/$$QT_VERSION $$bp/include/QtCore/$$QT_VERSION/QtCore \
     $$bp/src/corelib/global
 
 VPATH += \
@@ -182,18 +182,17 @@ HEADERS += \
     qglobal.h \
     qhash.h \
     qiodevice.h \
-    qjson.h \
+    qjson_p.h \
     qjsonarray.h \
     qjsondocument.h \
     qjsonobject.h \
-    qjsonparser.h \
+    qjsonparser_p.h \
     qjsonvalue.h \
-    qjsonwriter.h \
+    qjsonwriter_p.h \
     qlinkedlist.h \
     qlist.h \
     qlocale.h \
     qlocale_tools_p.h \
-    qmalloc.h \
     qmap.h \
     qmetatype.h \
     qnumeric.h \
@@ -204,12 +203,12 @@ HEADERS += \
     qsystemerror_p.h \
     qtemporaryfile.h \
     qtextstream.h \
-    qutfcodec.h \
+    qutfcodec_p.h \
     quuid.h \
     qvector.h \
     qversionnumber.h \
     qxmlstream.h \
-    qxmlutils.h
+    qxmlutils_p.h
 
 unix {
     SOURCES += \
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp b/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
index 704ea9774a..de3bcb2bbf 100644
--- a/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
+++ b/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
@@ -1471,7 +1471,7 @@ static bool indic_shape_syllable(HB_Bool openType, HB_ShaperItem *item, bool inv
         while (finalOrder[toMove].form && fixed < len-1) {
             IDEBUG("        fixed = %d, toMove=%d, moving form %d with pos %d", fixed, toMove, finalOrder[toMove].form, finalOrder[toMove].position);
             for (i = fixed; i < len; i++) {
-//                IDEBUG() << "           i=" << i << "uc=" << hex << uc[i] << "form=" << form(uc[i])
+//                IDEBUG() << "           i=" << i << "uc=" << Qt::hex << uc[i] << "form=" << form(uc[i])
 //                         << "position=" << position[i];
                 if (form(uc[i]) == finalOrder[toMove].form &&
                      position[i] == finalOrder[toMove].position) {
diff --git a/src/3rdparty/harfbuzz/tests/shaping/main.cpp b/src/3rdparty/harfbuzz/tests/shaping/main.cpp
index 10818c565c..16f469029b 100644
--- a/src/3rdparty/harfbuzz/tests/shaping/main.cpp
+++ b/src/3rdparty/harfbuzz/tests/shaping/main.cpp
@@ -370,7 +370,7 @@ void tst_QScriptEngine::greek()
             QString str;
             str.append(uc);
             if (str.normalized(QString::NormalizationForm_D).normalized(QString::NormalizationForm_C) != str) {
-                //qDebug() << "skipping" << hex << uc;
+                //qDebug() << "skipping" << Qt::hex << uc;
                 continue;
             }
             if (uc == 0x1fc1 || uc == 0x1fed)
@@ -389,7 +389,7 @@ void tst_QScriptEngine::greek()
             QString str;
             str.append(uc);
             if (str.normalized(QString::NormalizationForm_D).normalized(QString::NormalizationForm_C) != str) {
-                //qDebug() << "skipping" << hex << uc;
+                //qDebug() << "skipping" << Qt::hex << uc;
                 continue;
             }
             if (uc == 0x1fc1 || uc == 0x1fed)
diff --git a/src/3rdparty/md4c.pri b/src/3rdparty/md4c.pri
new file mode 100644
index 0000000000..e0150dc6ed
--- /dev/null
+++ b/src/3rdparty/md4c.pri
@@ -0,0 +1,3 @@
+INCLUDEPATH +=  $$PWD/md4c
+HEADERS +=      $$PWD/md4c/md4c.h
+SOURCES +=      $$PWD/md4c/md4c.c
diff --git a/src/3rdparty/md4c/LICENSE.md b/src/3rdparty/md4c/LICENSE.md
new file mode 100644
index 0000000000..d58ef9341d
--- /dev/null
+++ b/src/3rdparty/md4c/LICENSE.md
@@ -0,0 +1,22 @@
+
+# The MIT License (MIT)
+
+Copyright © 2016-2019 Martin Mitáš
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the “Software�),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS�, WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/src/3rdparty/md4c/md4c.c b/src/3rdparty/md4c/md4c.c
new file mode 100644
index 0000000000..13c7bd3433
--- /dev/null
+++ b/src/3rdparty/md4c/md4c.c
@@ -0,0 +1,6024 @@
+/*
+ * MD4C: Markdown parser for C
+ * (http://github.com/mity/md4c)
+ *
+ * Copyright (c) 2016-2019 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "md4c.h"
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/*****************************
+ ***  Miscellaneous Stuff  ***
+ *****************************/
+
+#ifdef _MSC_VER
+    /* MSVC does not understand "inline" when building as pure C (not C++).
+     * However it understands "__inline" */
+    #ifndef __cplusplus
+        #define inline __inline
+    #endif
+#endif
+
+#ifdef _T
+    #undef _T
+#endif
+#if defined MD4C_USE_UTF16
+    #define _T(x)           L##x
+#else
+    #define _T(x)           x
+#endif
+
+/* Misc. macros. */
+#define SIZEOF_ARRAY(a)     (sizeof(a) / sizeof(a[0]))
+
+#define STRINGIZE_(x)       #x
+#define STRINGIZE(x)        STRINGIZE_(x)
+
+#ifndef TRUE
+    #define TRUE            1
+    #define FALSE           0
+#endif
+
+
+/************************
+ ***  Internal Types  ***
+ ************************/
+
+/* These are omnipresent so lets save some typing. */
+#define CHAR    MD_CHAR
+#define SZ      MD_SIZE
+#define OFF     MD_OFFSET
+
+typedef struct MD_MARK_tag MD_MARK;
+typedef struct MD_BLOCK_tag MD_BLOCK;
+typedef struct MD_CONTAINER_tag MD_CONTAINER;
+typedef struct MD_REF_DEF_tag MD_REF_DEF;
+
+
+/* During analyzes of inline marks, we need to manage some "mark chains",
+ * of (yet unresolved) openers. This structure holds start/end of the chain.
+ * The chain internals are then realized through MD_MARK::prev and ::next.
+ */
+typedef struct MD_MARKCHAIN_tag MD_MARKCHAIN;
+struct MD_MARKCHAIN_tag {
+    int head;   /* Index of first mark in the chain, or -1 if empty. */
+    int tail;   /* Index of last mark in the chain, or -1 if empty. */
+};
+
+/* Context propagated through all the parsing. */
+typedef struct MD_CTX_tag MD_CTX;
+struct MD_CTX_tag {
+    /* Immutable stuff (parameters of md_parse()). */
+    const CHAR* text;
+    SZ size;
+    MD_PARSER parser;
+    void* userdata;
+
+    /* Helper temporary growing buffer. */
+    CHAR* buffer;
+    unsigned alloc_buffer;
+
+    /* Reference definitions. */
+    MD_REF_DEF* ref_defs;
+    int n_ref_defs;
+    int alloc_ref_defs;
+    void** ref_def_hashtable;
+    int ref_def_hashtable_size;
+
+    /* Stack of inline/span markers.
+     * This is only used for parsing a single block contents but by storing it
+     * here we may reuse the stack for subsequent blocks; i.e. we have fewer
+     * (re)allocations. */
+    MD_MARK* marks;
+    int n_marks;
+    int alloc_marks;
+
+#if defined MD4C_USE_UTF16
+    char mark_char_map[128];
+#else
+    char mark_char_map[256];
+#endif
+
+    /* For resolving of inline spans. */
+    MD_MARKCHAIN mark_chains[8];
+#define PTR_CHAIN               ctx->mark_chains[0]
+#define TABLECELLBOUNDARIES     ctx->mark_chains[1]
+#define BACKTICK_OPENERS        ctx->mark_chains[2]
+#define LOWERTHEN_OPENERS       ctx->mark_chains[3]
+#define ASTERISK_OPENERS        ctx->mark_chains[4]
+#define UNDERSCORE_OPENERS      ctx->mark_chains[5]
+#define TILDE_OPENERS           ctx->mark_chains[6]
+#define BRACKET_OPENERS         ctx->mark_chains[7]
+#define OPENERS_CHAIN_FIRST     2
+#define OPENERS_CHAIN_LAST      7
+
+    int n_table_cell_boundaries;
+
+    /* For resolving links. */
+    int unresolved_link_head;
+    int unresolved_link_tail;
+
+    /* For block analysis.
+     * Notes:
+     *   -- It holds MD_BLOCK as well as MD_LINE structures. After each
+     *      MD_BLOCK, its (multiple) MD_LINE(s) follow.
+     *   -- For MD_BLOCK_HTML and MD_BLOCK_CODE, MD_VERBATIMLINE(s) are used
+     *      instead of MD_LINE(s).
+     */
+    void* block_bytes;
+    MD_BLOCK* current_block;
+    int n_block_bytes;
+    int alloc_block_bytes;
+
+    /* For container block analysis. */
+    MD_CONTAINER* containers;
+    int n_containers;
+    int alloc_containers;
+
+    int last_line_has_list_loosening_effect;
+    int last_list_item_starts_with_two_blank_lines;
+
+    /* Minimal indentation to call the block "indented code block". */
+    unsigned code_indent_offset;
+
+    /* Contextual info for line analysis. */
+    SZ code_fence_length;   /* For checking closing fence length. */
+    int html_block_type;    /* For checking closing raw HTML condition. */
+};
+
+typedef enum MD_LINETYPE_tag MD_LINETYPE;
+enum MD_LINETYPE_tag {
+    MD_LINE_BLANK,
+    MD_LINE_HR,
+    MD_LINE_ATXHEADER,
+    MD_LINE_SETEXTHEADER,
+    MD_LINE_SETEXTUNDERLINE,
+    MD_LINE_INDENTEDCODE,
+    MD_LINE_FENCEDCODE,
+    MD_LINE_HTML,
+    MD_LINE_TEXT,
+    MD_LINE_TABLE,
+    MD_LINE_TABLEUNDERLINE
+};
+
+typedef struct MD_LINE_ANALYSIS_tag MD_LINE_ANALYSIS;
+struct MD_LINE_ANALYSIS_tag {
+    MD_LINETYPE type    : 16;
+    unsigned data       : 16;
+    OFF beg;
+    OFF end;
+    unsigned indent;        /* Indentation level. */
+};
+
+typedef struct MD_LINE_tag MD_LINE;
+struct MD_LINE_tag {
+    OFF beg;
+    OFF end;
+};
+
+typedef struct MD_VERBATIMLINE_tag MD_VERBATIMLINE;
+struct MD_VERBATIMLINE_tag {
+    OFF beg;
+    OFF end;
+    OFF indent;
+};
+
+
+/*******************
+ ***  Debugging  ***
+ *******************/
+
+#define MD_LOG(msg)                                                     \
+    do {                                                                \
+        if(ctx->parser.debug_log != NULL)                               \
+            ctx->parser.debug_log((msg), ctx->userdata);                \
+    } while(0)
+
+#ifdef DEBUG
+    #define MD_ASSERT(cond)                                             \
+            do {                                                        \
+                if(!(cond)) {                                           \
+                    MD_LOG(__FILE__ ":" STRINGIZE(__LINE__) ": "        \
+                           "Assertion '" STRINGIZE(cond) "' failed.");  \
+                    exit(1);                                            \
+                }                                                       \
+            } while(0)
+
+    #define MD_UNREACHABLE()        MD_ASSERT(1 == 0)
+#else
+    #ifdef __GNUC__
+        #define MD_ASSERT(cond)     do { if(!(cond)) __builtin_unreachable(); } while(0)
+        #define MD_UNREACHABLE()    do { __builtin_unreachable(); } while(0)
+    #elif defined _MSC_VER  &&  _MSC_VER > 120
+        #define MD_ASSERT(cond)     do { __assume(cond); } while(0)
+        #define MD_UNREACHABLE()    do { __assume(0); } while(0)
+    #else
+        #define MD_ASSERT(cond)     do {} while(0)
+        #define MD_UNREACHABLE()    do {} while(0)
+    #endif
+#endif
+
+
+/*****************
+ ***  Helpers  ***
+ *****************/
+
+/* Character accessors. */
+#define CH(off)                 (ctx->text[(off)])
+#define STR(off)                (ctx->text + (off))
+
+/* Character classification.
+ * Note we assume ASCII compatibility of code points < 128 here. */
+#define ISIN_(ch, ch_min, ch_max)       ((ch_min) <= (unsigned)(ch) && (unsigned)(ch) <= (ch_max))
+#define ISANYOF_(ch, palette)           (md_strchr((palette), (ch)) != NULL)
+#define ISANYOF2_(ch, ch1, ch2)         ((ch) == (ch1) || (ch) == (ch2))
+#define ISANYOF3_(ch, ch1, ch2, ch3)    ((ch) == (ch1) || (ch) == (ch2) || (ch) == (ch3))
+#define ISASCII_(ch)                    ((unsigned)(ch) <= 127)
+#define ISBLANK_(ch)                    (ISANYOF2_((ch), _T(' '), _T('\t')))
+#define ISNEWLINE_(ch)                  (ISANYOF2_((ch), _T('\r'), _T('\n')))
+#define ISWHITESPACE_(ch)               (ISBLANK_(ch) || ISANYOF2_((ch), _T('\v'), _T('\f')))
+#define ISCNTRL_(ch)                    ((unsigned)(ch) <= 31 || (unsigned)(ch) == 127)
+#define ISPUNCT_(ch)                    (ISIN_(ch, 33, 47) || ISIN_(ch, 58, 64) || ISIN_(ch, 91, 96) || ISIN_(ch, 123, 126))
+#define ISUPPER_(ch)                    (ISIN_(ch, _T('A'), _T('Z')))
+#define ISLOWER_(ch)                    (ISIN_(ch, _T('a'), _T('z')))
+#define ISALPHA_(ch)                    (ISUPPER_(ch) || ISLOWER_(ch))
+#define ISDIGIT_(ch)                    (ISIN_(ch, _T('0'), _T('9')))
+#define ISXDIGIT_(ch)                   (ISDIGIT_(ch) || ISIN_(ch, _T('A'), _T('F')) || ISIN_(ch, _T('a'), _T('f')))
+#define ISALNUM_(ch)                    (ISALPHA_(ch) || ISDIGIT_(ch))
+
+#define ISANYOF(off, palette)           ISANYOF_(CH(off), (palette))
+#define ISANYOF2(off, ch1, ch2)         ISANYOF2_(CH(off), (ch1), (ch2))
+#define ISANYOF3(off, ch1, ch2, ch3)    ISANYOF3_(CH(off), (ch1), (ch2), (ch3))
+#define ISASCII(off)                    ISASCII_(CH(off))
+#define ISBLANK(off)                    ISBLANK_(CH(off))
+#define ISNEWLINE(off)                  ISNEWLINE_(CH(off))
+#define ISWHITESPACE(off)               ISWHITESPACE_(CH(off))
+#define ISCNTRL(off)                    ISCNTRL_(CH(off))
+#define ISPUNCT(off)                    ISPUNCT_(CH(off))
+#define ISUPPER(off)                    ISUPPER_(CH(off))
+#define ISLOWER(off)                    ISLOWER_(CH(off))
+#define ISALPHA(off)                    ISALPHA_(CH(off))
+#define ISDIGIT(off)                    ISDIGIT_(CH(off))
+#define ISXDIGIT(off)                   ISXDIGIT_(CH(off))
+#define ISALNUM(off)                    ISALNUM_(CH(off))
+static inline const CHAR*
+md_strchr(const CHAR* str, CHAR ch)
+{
+    OFF i;
+    for(i = 0; str[i] != _T('\0'); i++) {
+        if(ch == str[i])
+            return (str + i);
+    }
+    return NULL;
+}
+
+/* Case insensitive check of string equality. */
+static inline int
+md_ascii_case_eq(const CHAR* s1, const CHAR* s2, SZ n)
+{
+    OFF i;
+    for(i = 0; i < n; i++) {
+        CHAR ch1 = s1[i];
+        CHAR ch2 = s2[i];
+
+        if(ISLOWER_(ch1))
+            ch1 += ('A'-'a');
+        if(ISLOWER_(ch2))
+            ch2 += ('A'-'a');
+        if(ch1 != ch2)
+            return FALSE;
+    }
+    return TRUE;
+}
+
+static inline int
+md_ascii_eq(const CHAR* s1, const CHAR* s2, SZ n)
+{
+    return memcmp(s1, s2, n * sizeof(CHAR)) == 0;
+}
+
+static int
+md_text_with_null_replacement(MD_CTX* ctx, MD_TEXTTYPE type, const CHAR* str, SZ size)
+{
+    OFF off = 0;
+    int ret = 0;
+
+    while(1) {
+        while(off < size  &&  str[off] != _T('\0'))
+            off++;
+
+        if(off > 0) {
+            ret = ctx->parser.text(type, str, off, ctx->userdata);
+            if(ret != 0)
+                return ret;
+
+            str += off;
+            size -= off;
+            off = 0;
+        }
+
+        if(off >= size)
+            return 0;
+
+        ret = ctx->parser.text(MD_TEXT_NULLCHAR, _T(""), 1, ctx->userdata);
+        if(ret != 0)
+            return ret;
+        off++;
+    }
+}
+
+
+#define MD_CHECK(func)                                                  \
+    do {                                                                \
+        ret = (func);                                                   \
+        if(ret < 0)                                                     \
+            goto abort;                                                 \
+    } while(0)
+
+
+#define MD_TEMP_BUFFER(sz)                                              \
+    do {                                                                \
+        if(sz > ctx->alloc_buffer) {                                    \
+            CHAR* new_buffer;                                           \
+            SZ new_size = ((sz) + (sz) / 2 + 128) & ~127;               \
+                                                                        \
+            new_buffer = realloc(ctx->buffer, new_size);                \
+            if(new_buffer == NULL) {                                    \
+                MD_LOG("realloc() failed.");                            \
+                ret = -1;                                               \
+                goto abort;                                             \
+            }                                                           \
+                                                                        \
+            ctx->buffer = new_buffer;                                   \
+            ctx->alloc_buffer = new_size;                               \
+        }                                                               \
+    } while(0)
+
+
+#define MD_ENTER_BLOCK(type, arg)                                       \
+    do {                                                                \
+        ret = ctx->parser.enter_block((type), (arg), ctx->userdata);         \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from enter_block() callback.");             \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_LEAVE_BLOCK(type, arg)                                       \
+    do {                                                                \
+        ret = ctx->parser.leave_block((type), (arg), ctx->userdata);         \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from leave_block() callback.");             \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_ENTER_SPAN(type, arg)                                        \
+    do {                                                                \
+        ret = ctx->parser.enter_span((type), (arg), ctx->userdata);          \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from enter_span() callback.");              \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_LEAVE_SPAN(type, arg)                                        \
+    do {                                                                \
+        ret = ctx->parser.leave_span((type), (arg), ctx->userdata);          \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from leave_span() callback.");              \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_TEXT(type, str, size)                                        \
+    do {                                                                \
+        if(size > 0) {                                                  \
+            ret = ctx->parser.text((type), (str), (size), ctx->userdata);    \
+            if(ret != 0) {                                              \
+                MD_LOG("Aborted from text() callback.");                \
+                goto abort;                                             \
+            }                                                           \
+        }                                                               \
+    } while(0)
+
+#define MD_TEXT_INSECURE(type, str, size)                               \
+    do {                                                                \
+        if(size > 0) {                                                  \
+            ret = md_text_with_null_replacement(ctx, type, str, size);  \
+            if(ret != 0) {                                              \
+                MD_LOG("Aborted from text() callback.");                \
+                goto abort;                                             \
+            }                                                           \
+        }                                                               \
+    } while(0)
+
+
+
+/*************************
+ ***  Unicode Support  ***
+ *************************/
+
+typedef struct MD_UNICODE_FOLD_INFO_tag MD_UNICODE_FOLD_INFO;
+struct MD_UNICODE_FOLD_INFO_tag {
+    int codepoints[3];
+    int n_codepoints;
+};
+
+
+#if defined MD4C_USE_UTF16 || defined MD4C_USE_UTF8
+    static int
+    md_is_unicode_whitespace__(int codepoint)
+    {
+        /* The ASCII ones are the most frequently used ones, so lets check them first. */
+        if(codepoint <= 0x7f)
+            return ISWHITESPACE_(codepoint);
+
+        /* Check for Unicode codepoints in Zs class above 127. */
+        if(codepoint == 0x00a0 || codepoint == 0x1680)
+            return TRUE;
+        if(0x2000 <= codepoint && codepoint <= 0x200a)
+            return TRUE;
+        if(codepoint == 0x202f || codepoint == 0x205f || codepoint == 0x3000)
+            return TRUE;
+
+        return FALSE;
+    }
+
+    static int
+    md_unicode_cmp__(const void* p_codepoint_a, const void* p_codepoint_b)
+    {
+        return (*(const int*)p_codepoint_a - *(const int*)p_codepoint_b);
+    }
+
+    static int
+    md_is_unicode_punct__(int codepoint)
+    {
+        /* non-ASCII (above 127) Unicode punctuation codepoints (classes
+         * Pc, Pd, Pe, Pf, Pi, Po, Ps).
+         *
+         * Warning: Keep the array sorted.
+         */
+        static const int punct_list[] = {
+            0x00a1, 0x00a7, 0x00ab, 0x00b6, 0x00b7, 0x00bb, 0x00bf, 0x037e, 0x0387, 0x055a, 0x055b, 0x055c, 0x055d, 0x055e, 0x055f, 0x0589,
+            0x058a, 0x05be, 0x05c0, 0x05c3, 0x05c6, 0x05f3, 0x05f4, 0x0609, 0x060a, 0x060c, 0x060d, 0x061b, 0x061e, 0x061f, 0x066a, 0x066b,
+            0x066c, 0x066d, 0x06d4, 0x0700, 0x0701, 0x0702, 0x0703, 0x0704, 0x0705, 0x0706, 0x0707, 0x0708, 0x0709, 0x070a, 0x070b, 0x070c,
+            0x070d, 0x07f7, 0x07f8, 0x07f9, 0x0830, 0x0831, 0x0832, 0x0833, 0x0834, 0x0835, 0x0836, 0x0837, 0x0838, 0x0839, 0x083a, 0x083b,
+            0x083c, 0x083d, 0x083e, 0x085e, 0x0964, 0x0965, 0x0970, 0x0af0, 0x0df4, 0x0e4f, 0x0e5a, 0x0e5b, 0x0f04, 0x0f05, 0x0f06, 0x0f07,
+            0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e, 0x0f0f, 0x0f10, 0x0f11, 0x0f12, 0x0f14, 0x0f3a, 0x0f3b, 0x0f3c, 0x0f3d,
+            0x0f85, 0x0fd0, 0x0fd1, 0x0fd2, 0x0fd3, 0x0fd4, 0x0fd9, 0x0fda, 0x104a, 0x104b, 0x104c, 0x104d, 0x104e, 0x104f, 0x10fb, 0x1360,
+            0x1361, 0x1362, 0x1363, 0x1364, 0x1365, 0x1366, 0x1367, 0x1368, 0x1400, 0x166d, 0x166e, 0x169b, 0x169c, 0x16eb, 0x16ec, 0x16ed,
+            0x1735, 0x1736, 0x17d4, 0x17d5, 0x17d6, 0x17d8, 0x17d9, 0x17da, 0x1800, 0x1801, 0x1802, 0x1803, 0x1804, 0x1805, 0x1806, 0x1807,
+            0x1808, 0x1809, 0x180a, 0x1944, 0x1945, 0x1a1e, 0x1a1f, 0x1aa0, 0x1aa1, 0x1aa2, 0x1aa3, 0x1aa4, 0x1aa5, 0x1aa6, 0x1aa8, 0x1aa9,
+            0x1aaa, 0x1aab, 0x1aac, 0x1aad, 0x1b5a, 0x1b5b, 0x1b5c, 0x1b5d, 0x1b5e, 0x1b5f, 0x1b60, 0x1bfc, 0x1bfd, 0x1bfe, 0x1bff, 0x1c3b,
+            0x1c3c, 0x1c3d, 0x1c3e, 0x1c3f, 0x1c7e, 0x1c7f, 0x1cc0, 0x1cc1, 0x1cc2, 0x1cc3, 0x1cc4, 0x1cc5, 0x1cc6, 0x1cc7, 0x1cd3, 0x2010,
+            0x2011, 0x2012, 0x2013, 0x2014, 0x2015, 0x2016, 0x2017, 0x2018, 0x2019, 0x201a, 0x201b, 0x201c, 0x201d, 0x201e, 0x201f, 0x2020,
+            0x2021, 0x2022, 0x2023, 0x2024, 0x2025, 0x2026, 0x2027, 0x2030, 0x2031, 0x2032, 0x2033, 0x2034, 0x2035, 0x2036, 0x2037, 0x2038,
+            0x2039, 0x203a, 0x203b, 0x203c, 0x203d, 0x203e, 0x203f, 0x2040, 0x2041, 0x2042, 0x2043, 0x2045, 0x2046, 0x2047, 0x2048, 0x2049,
+            0x204a, 0x204b, 0x204c, 0x204d, 0x204e, 0x204f, 0x2050, 0x2051, 0x2053, 0x2054, 0x2055, 0x2056, 0x2057, 0x2058, 0x2059, 0x205a,
+            0x205b, 0x205c, 0x205d, 0x205e, 0x207d, 0x207e, 0x208d, 0x208e, 0x2308, 0x2309, 0x230a, 0x230b, 0x2329, 0x232a, 0x2768, 0x2769,
+            0x276a, 0x276b, 0x276c, 0x276d, 0x276e, 0x276f, 0x2770, 0x2771, 0x2772, 0x2773, 0x2774, 0x2775, 0x27c5, 0x27c6, 0x27e6, 0x27e7,
+            0x27e8, 0x27e9, 0x27ea, 0x27eb, 0x27ec, 0x27ed, 0x27ee, 0x27ef, 0x2983, 0x2984, 0x2985, 0x2986, 0x2987, 0x2988, 0x2989, 0x298a,
+            0x298b, 0x298c, 0x298d, 0x298e, 0x298f, 0x2990, 0x2991, 0x2992, 0x2993, 0x2994, 0x2995, 0x2996, 0x2997, 0x2998, 0x29d8, 0x29d9,
+            0x29da, 0x29db, 0x29fc, 0x29fd, 0x2cf9, 0x2cfa, 0x2cfb, 0x2cfc, 0x2cfe, 0x2cff, 0x2d70, 0x2e00, 0x2e01, 0x2e02, 0x2e03, 0x2e04,
+            0x2e05, 0x2e06, 0x2e07, 0x2e08, 0x2e09, 0x2e0a, 0x2e0b, 0x2e0c, 0x2e0d, 0x2e0e, 0x2e0f, 0x2e10, 0x2e11, 0x2e12, 0x2e13, 0x2e14,
+            0x2e15, 0x2e16, 0x2e17, 0x2e18, 0x2e19, 0x2e1a, 0x2e1b, 0x2e1c, 0x2e1d, 0x2e1e, 0x2e1f, 0x2e20, 0x2e21, 0x2e22, 0x2e23, 0x2e24,
+            0x2e25, 0x2e26, 0x2e27, 0x2e28, 0x2e29, 0x2e2a, 0x2e2b, 0x2e2c, 0x2e2d, 0x2e2e, 0x2e30, 0x2e31, 0x2e32, 0x2e33, 0x2e34, 0x2e35,
+            0x2e36, 0x2e37, 0x2e38, 0x2e39, 0x2e3a, 0x2e3b, 0x2e3c, 0x2e3d, 0x2e3e, 0x2e3f, 0x2e40, 0x2e41, 0x2e42, 0x2e43, 0x2e44, 0x3001,
+            0x3002, 0x3003, 0x3008, 0x3009, 0x300a, 0x300b, 0x300c, 0x300d, 0x300e, 0x300f, 0x3010, 0x3011, 0x3014, 0x3015, 0x3016, 0x3017,
+            0x3018, 0x3019, 0x301a, 0x301b, 0x301c, 0x301d, 0x301e, 0x301f, 0x3030, 0x303d, 0x30a0, 0x30fb, 0xa4fe, 0xa4ff, 0xa60d, 0xa60e,
+            0xa60f, 0xa673, 0xa67e, 0xa6f2, 0xa6f3, 0xa6f4, 0xa6f5, 0xa6f6, 0xa6f7, 0xa874, 0xa875, 0xa876, 0xa877, 0xa8ce, 0xa8cf, 0xa8f8,
+            0xa8f9, 0xa8fa, 0xa8fc, 0xa92e, 0xa92f, 0xa95f, 0xa9c1, 0xa9c2, 0xa9c3, 0xa9c4, 0xa9c5, 0xa9c6, 0xa9c7, 0xa9c8, 0xa9c9, 0xa9ca,
+            0xa9cb, 0xa9cc, 0xa9cd, 0xa9de, 0xa9df, 0xaa5c, 0xaa5d, 0xaa5e, 0xaa5f, 0xaade, 0xaadf, 0xaaf0, 0xaaf1, 0xabeb, 0xfd3e, 0xfd3f,
+            0xfe10, 0xfe11, 0xfe12, 0xfe13, 0xfe14, 0xfe15, 0xfe16, 0xfe17, 0xfe18, 0xfe19, 0xfe30, 0xfe31, 0xfe32, 0xfe33, 0xfe34, 0xfe35,
+            0xfe36, 0xfe37, 0xfe38, 0xfe39, 0xfe3a, 0xfe3b, 0xfe3c, 0xfe3d, 0xfe3e, 0xfe3f, 0xfe40, 0xfe41, 0xfe42, 0xfe43, 0xfe44, 0xfe45,
+            0xfe46, 0xfe47, 0xfe48, 0xfe49, 0xfe4a, 0xfe4b, 0xfe4c, 0xfe4d, 0xfe4e, 0xfe4f, 0xfe50, 0xfe51, 0xfe52, 0xfe54, 0xfe55, 0xfe56,
+            0xfe57, 0xfe58, 0xfe59, 0xfe5a, 0xfe5b, 0xfe5c, 0xfe5d, 0xfe5e, 0xfe5f, 0xfe60, 0xfe61, 0xfe63, 0xfe68, 0xfe6a, 0xfe6b, 0xff01,
+            0xff02, 0xff03, 0xff05, 0xff06, 0xff07, 0xff08, 0xff09, 0xff0a, 0xff0c, 0xff0d, 0xff0e, 0xff0f, 0xff1a, 0xff1b, 0xff1f, 0xff20,
+            0xff3b, 0xff3c, 0xff3d, 0xff3f, 0xff5b, 0xff5d, 0xff5f, 0xff60, 0xff61, 0xff62, 0xff63, 0xff64, 0xff65, 0x10100, 0x10101, 0x10102,
+            0x1039f, 0x103d0, 0x1056f, 0x10857, 0x1091f, 0x1093f, 0x10a50, 0x10a51, 0x10a52, 0x10a53, 0x10a54, 0x10a55, 0x10a56, 0x10a57, 0x10a58, 0x10a7f,
+            0x10af0, 0x10af1, 0x10af2, 0x10af3, 0x10af4, 0x10af5, 0x10af6, 0x10b39, 0x10b3a, 0x10b3b, 0x10b3c, 0x10b3d, 0x10b3e, 0x10b3f, 0x10b99, 0x10b9a,
+            0x10b9b, 0x10b9c, 0x11047, 0x11048, 0x11049, 0x1104a, 0x1104b, 0x1104c, 0x1104d, 0x110bb, 0x110bc, 0x110be, 0x110bf, 0x110c0, 0x110c1, 0x11140,
+            0x11141, 0x11142, 0x11143, 0x11174, 0x11175, 0x111c5, 0x111c6, 0x111c7, 0x111c8, 0x111c9, 0x111cd, 0x111db, 0x111dd, 0x111de, 0x111df, 0x11238,
+            0x11239, 0x1123a, 0x1123b, 0x1123c, 0x1123d, 0x112a9, 0x1144b, 0x1144c, 0x1144d, 0x1144e, 0x1144f, 0x1145b, 0x1145d, 0x114c6, 0x115c1, 0x115c2,
+            0x115c3, 0x115c4, 0x115c5, 0x115c6, 0x115c7, 0x115c8, 0x115c9, 0x115ca, 0x115cb, 0x115cc, 0x115cd, 0x115ce, 0x115cf, 0x115d0, 0x115d1, 0x115d2,
+            0x115d3, 0x115d4, 0x115d5, 0x115d6, 0x115d7, 0x11641, 0x11642, 0x11643, 0x11660, 0x11661, 0x11662, 0x11663, 0x11664, 0x11665, 0x11666, 0x11667,
+            0x11668, 0x11669, 0x1166a, 0x1166b, 0x1166c, 0x1173c, 0x1173d, 0x1173e, 0x11c41, 0x11c42, 0x11c43, 0x11c44, 0x11c45, 0x11c70, 0x11c71, 0x12470,
+            0x12471, 0x12472, 0x12473, 0x12474, 0x16a6e, 0x16a6f, 0x16af5, 0x16b37, 0x16b38, 0x16b39, 0x16b3a, 0x16b3b, 0x16b44, 0x1bc9f, 0x1da87, 0x1da88,
+            0x1da89, 0x1da8a, 0x1da8b, 0x1e95e, 0x1e95f
+        };
+
+        /* The ASCII ones are the most frequently used ones, so lets check them first. */
+        if(codepoint <= 0x7f)
+            return ISPUNCT_(codepoint);
+
+        return (bsearch(&codepoint, punct_list, SIZEOF_ARRAY(punct_list), sizeof(int), md_unicode_cmp__) != NULL);
+    }
+
+    static void
+    md_get_unicode_fold_info(int codepoint, MD_UNICODE_FOLD_INFO* info)
+    {
+        /* This maps single codepoint within a range to a single codepoint
+         * within an offseted range. */
+        static const struct {
+            int min_codepoint;
+            int max_codepoint;
+            int offset;
+        } range_map[] = {
+            { 0x00c0, 0x00d6, 32 }, { 0x00d8, 0x00de, 32 }, { 0x0388, 0x038a, 37 }, { 0x0391, 0x03a1, 32 }, { 0x03a3, 0x03ab, 32 }, { 0x0400, 0x040f, 80 },
+            { 0x0410, 0x042f, 32 }, { 0x0531, 0x0556, 48 }, { 0x1f08, 0x1f0f, -8 }, { 0x1f18, 0x1f1d, -8 }, { 0x1f28, 0x1f2f, -8 }, { 0x1f38, 0x1f3f, -8 },
+            { 0x1f48, 0x1f4d, -8 }, { 0x1f68, 0x1f6f, -8 }, { 0x1fc8, 0x1fcb, -86 }, { 0x2160, 0x216f, 16 }, { 0x24b6, 0x24cf, 26 }, { 0xff21, 0xff3a, 32 },
+            { 0x10400, 0x10425, 40 }
+        };
+
+        /* This maps single codepoint to another single codepoint. */
+        static const struct {
+            int src_codepoint;
+            int dest_codepoint;
+        } single_map[] = {
+            { 0x00b5, 0x03bc }, { 0x0100, 0x0101 }, { 0x0102, 0x0103 }, { 0x0104, 0x0105 }, { 0x0106, 0x0107 }, { 0x0108, 0x0109 }, { 0x010a, 0x010b }, { 0x010c, 0x010d },
+            { 0x010e, 0x010f }, { 0x0110, 0x0111 }, { 0x0112, 0x0113 }, { 0x0114, 0x0115 }, { 0x0116, 0x0117 }, { 0x0118, 0x0119 }, { 0x011a, 0x011b }, { 0x011c, 0x011d },
+            { 0x011e, 0x011f }, { 0x0120, 0x0121 }, { 0x0122, 0x0123 }, { 0x0124, 0x0125 }, { 0x0126, 0x0127 }, { 0x0128, 0x0129 }, { 0x012a, 0x012b }, { 0x012c, 0x012d },
+            { 0x012e, 0x012f }, { 0x0132, 0x0133 }, { 0x0134, 0x0135 }, { 0x0136, 0x0137 }, { 0x0139, 0x013a }, { 0x013b, 0x013c }, { 0x013d, 0x013e }, { 0x013f, 0x0140 },
+            { 0x0141, 0x0142 }, { 0x0143, 0x0144 }, { 0x0145, 0x0146 }, { 0x0147, 0x0148 }, { 0x014a, 0x014b }, { 0x014c, 0x014d }, { 0x014e, 0x014f }, { 0x0150, 0x0151 },
+            { 0x0152, 0x0153 }, { 0x0154, 0x0155 }, { 0x0156, 0x0157 }, { 0x0158, 0x0159 }, { 0x015a, 0x015b }, { 0x015c, 0x015d }, { 0x015e, 0x015f }, { 0x0160, 0x0161 },
+            { 0x0162, 0x0163 }, { 0x0164, 0x0165 }, { 0x0166, 0x0167 }, { 0x0168, 0x0169 }, { 0x016a, 0x016b }, { 0x016c, 0x016d }, { 0x016e, 0x016f }, { 0x0170, 0x0171 },
+            { 0x0172, 0x0173 }, { 0x0174, 0x0175 }, { 0x0176, 0x0177 }, { 0x0178, 0x00ff }, { 0x0179, 0x017a }, { 0x017b, 0x017c }, { 0x017d, 0x017e }, { 0x017f, 0x0073 },
+            { 0x0181, 0x0253 }, { 0x0182, 0x0183 }, { 0x0184, 0x0185 }, { 0x0186, 0x0254 }, { 0x0187, 0x0188 }, { 0x0189, 0x0256 }, { 0x018a, 0x0257 }, { 0x018b, 0x018c },
+            { 0x018e, 0x01dd }, { 0x018f, 0x0259 }, { 0x0190, 0x025b }, { 0x0191, 0x0192 }, { 0x0193, 0x0260 }, { 0x0194, 0x0263 }, { 0x0196, 0x0269 }, { 0x0197, 0x0268 },
+            { 0x0198, 0x0199 }, { 0x019c, 0x026f }, { 0x019d, 0x0272 }, { 0x019f, 0x0275 }, { 0x01a0, 0x01a1 }, { 0x01a2, 0x01a3 }, { 0x01a4, 0x01a5 }, { 0x01a6, 0x0280 },
+            { 0x01a7, 0x01a8 }, { 0x01a9, 0x0283 }, { 0x01ac, 0x01ad }, { 0x01ae, 0x0288 }, { 0x01af, 0x01b0 }, { 0x01b1, 0x028a }, { 0x01b2, 0x028b }, { 0x01b3, 0x01b4 },
+            { 0x01b5, 0x01b6 }, { 0x01b7, 0x0292 }, { 0x01b8, 0x01b9 }, { 0x01bc, 0x01bd }, { 0x01c4, 0x01c6 }, { 0x01c5, 0x01c6 }, { 0x01c7, 0x01c9 }, { 0x01c8, 0x01c9 },
+            { 0x01ca, 0x01cc }, { 0x01cb, 0x01cc }, { 0x01cd, 0x01ce }, { 0x01cf, 0x01d0 }, { 0x01d1, 0x01d2 }, { 0x01d3, 0x01d4 }, { 0x01d5, 0x01d6 }, { 0x01d7, 0x01d8 },
+            { 0x01d9, 0x01da }, { 0x01db, 0x01dc }, { 0x01de, 0x01df }, { 0x01e0, 0x01e1 }, { 0x01e2, 0x01e3 }, { 0x01e4, 0x01e5 }, { 0x01e6, 0x01e7 }, { 0x01e8, 0x01e9 },
+            { 0x01ea, 0x01eb }, { 0x01ec, 0x01ed }, { 0x01ee, 0x01ef }, { 0x01f1, 0x01f3 }, { 0x01f2, 0x01f3 }, { 0x01f4, 0x01f5 }, { 0x01f6, 0x0195 }, { 0x01f7, 0x01bf },
+            { 0x01f8, 0x01f9 }, { 0x01fa, 0x01fb }, { 0x01fc, 0x01fd }, { 0x01fe, 0x01ff }, { 0x0200, 0x0201 }, { 0x0202, 0x0203 }, { 0x0204, 0x0205 }, { 0x0206, 0x0207 },
+            { 0x0208, 0x0209 }, { 0x020a, 0x020b }, { 0x020c, 0x020d }, { 0x020e, 0x020f }, { 0x0210, 0x0211 }, { 0x0212, 0x0213 }, { 0x0214, 0x0215 }, { 0x0216, 0x0217 },
+            { 0x0218, 0x0219 }, { 0x021a, 0x021b }, { 0x021c, 0x021d }, { 0x021e, 0x021f }, { 0x0220, 0x019e }, { 0x0222, 0x0223 }, { 0x0224, 0x0225 }, { 0x0226, 0x0227 },
+            { 0x0228, 0x0229 }, { 0x022a, 0x022b }, { 0x022c, 0x022d }, { 0x022e, 0x022f }, { 0x0230, 0x0231 }, { 0x0232, 0x0233 }, { 0x0345, 0x03b9 }, { 0x0386, 0x03ac },
+            { 0x038c, 0x03cc }, { 0x038e, 0x03cd }, { 0x038f, 0x03ce }, { 0x03c2, 0x03c3 }, { 0x03d0, 0x03b2 }, { 0x03d1, 0x03b8 }, { 0x03d5, 0x03c6 }, { 0x03d6, 0x03c0 },
+            { 0x03d8, 0x03d9 }, { 0x03da, 0x03db }, { 0x03dc, 0x03dd }, { 0x03de, 0x03df }, { 0x03e0, 0x03e1 }, { 0x03e2, 0x03e3 }, { 0x03e4, 0x03e5 }, { 0x03e6, 0x03e7 },
+            { 0x03e8, 0x03e9 }, { 0x03ea, 0x03eb }, { 0x03ec, 0x03ed }, { 0x03ee, 0x03ef }, { 0x03f0, 0x03ba }, { 0x03f1, 0x03c1 }, { 0x03f2, 0x03c3 }, { 0x03f4, 0x03b8 },
+            { 0x03f5, 0x03b5 }, { 0x0460, 0x0461 }, { 0x0462, 0x0463 }, { 0x0464, 0x0465 }, { 0x0466, 0x0467 }, { 0x0468, 0x0469 }, { 0x046a, 0x046b }, { 0x046c, 0x046d },
+            { 0x046e, 0x046f }, { 0x0470, 0x0471 }, { 0x0472, 0x0473 }, { 0x0474, 0x0475 }, { 0x0476, 0x0477 }, { 0x0478, 0x0479 }, { 0x047a, 0x047b }, { 0x047c, 0x047d },
+            { 0x047e, 0x047f }, { 0x0480, 0x0481 }, { 0x048a, 0x048b }, { 0x048c, 0x048d }, { 0x048e, 0x048f }, { 0x0490, 0x0491 }, { 0x0492, 0x0493 }, { 0x0494, 0x0495 },
+            { 0x0496, 0x0497 }, { 0x0498, 0x0499 }, { 0x049a, 0x049b }, { 0x049c, 0x049d }, { 0x049e, 0x049f }, { 0x04a0, 0x04a1 }, { 0x04a2, 0x04a3 }, { 0x04a4, 0x04a5 },
+            { 0x04a6, 0x04a7 }, { 0x04a8, 0x04a9 }, { 0x04aa, 0x04ab }, { 0x04ac, 0x04ad }, { 0x04ae, 0x04af }, { 0x04b0, 0x04b1 }, { 0x04b2, 0x04b3 }, { 0x04b4, 0x04b5 },
+            { 0x04b6, 0x04b7 }, { 0x04b8, 0x04b9 }, { 0x04ba, 0x04bb }, { 0x04bc, 0x04bd }, { 0x04be, 0x04bf }, { 0x04c1, 0x04c2 }, { 0x04c3, 0x04c4 }, { 0x04c5, 0x04c6 },
+            { 0x04c7, 0x04c8 }, { 0x04c9, 0x04ca }, { 0x04cb, 0x04cc }, { 0x04cd, 0x04ce }, { 0x04d0, 0x04d1 }, { 0x04d2, 0x04d3 }, { 0x04d4, 0x04d5 }, { 0x04d6, 0x04d7 },
+            { 0x04d8, 0x04d9 }, { 0x04da, 0x04db }, { 0x04dc, 0x04dd }, { 0x04de, 0x04df }, { 0x04e0, 0x04e1 }, { 0x04e2, 0x04e3 }, { 0x04e4, 0x04e5 }, { 0x04e6, 0x04e7 },
+            { 0x04e8, 0x04e9 }, { 0x04ea, 0x04eb }, { 0x04ec, 0x04ed }, { 0x04ee, 0x04ef }, { 0x04f0, 0x04f1 }, { 0x04f2, 0x04f3 }, { 0x04f4, 0x04f5 }, { 0x04f8, 0x04f9 },
+            { 0x0500, 0x0501 }, { 0x0502, 0x0503 }, { 0x0504, 0x0505 }, { 0x0506, 0x0507 }, { 0x0508, 0x0509 }, { 0x050a, 0x050b }, { 0x050c, 0x050d }, { 0x050e, 0x050f },
+            { 0x1e00, 0x1e01 }, { 0x1e02, 0x1e03 }, { 0x1e04, 0x1e05 }, { 0x1e06, 0x1e07 }, { 0x1e08, 0x1e09 }, { 0x1e0a, 0x1e0b }, { 0x1e0c, 0x1e0d }, { 0x1e0e, 0x1e0f },
+            { 0x1e10, 0x1e11 }, { 0x1e12, 0x1e13 }, { 0x1e14, 0x1e15 }, { 0x1e16, 0x1e17 }, { 0x1e18, 0x1e19 }, { 0x1e1a, 0x1e1b }, { 0x1e1c, 0x1e1d }, { 0x1e1e, 0x1e1f },
+            { 0x1e20, 0x1e21 }, { 0x1e22, 0x1e23 }, { 0x1e24, 0x1e25 }, { 0x1e26, 0x1e27 }, { 0x1e28, 0x1e29 }, { 0x1e2a, 0x1e2b }, { 0x1e2c, 0x1e2d }, { 0x1e2e, 0x1e2f },
+            { 0x1e30, 0x1e31 }, { 0x1e32, 0x1e33 }, { 0x1e34, 0x1e35 }, { 0x1e36, 0x1e37 }, { 0x1e38, 0x1e39 }, { 0x1e3a, 0x1e3b }, { 0x1e3c, 0x1e3d }, { 0x1e3e, 0x1e3f },
+            { 0x1e40, 0x1e41 }, { 0x1e42, 0x1e43 }, { 0x1e44, 0x1e45 }, { 0x1e46, 0x1e47 }, { 0x1e48, 0x1e49 }, { 0x1e4a, 0x1e4b }, { 0x1e4c, 0x1e4d }, { 0x1e4e, 0x1e4f },
+            { 0x1e50, 0x1e51 }, { 0x1e52, 0x1e53 }, { 0x1e54, 0x1e55 }, { 0x1e56, 0x1e57 }, { 0x1e58, 0x1e59 }, { 0x1e5a, 0x1e5b }, { 0x1e5c, 0x1e5d }, { 0x1e5e, 0x1e5f },
+            { 0x1e60, 0x1e61 }, { 0x1e62, 0x1e63 }, { 0x1e64, 0x1e65 }, { 0x1e66, 0x1e67 }, { 0x1e68, 0x1e69 }, { 0x1e6a, 0x1e6b }, { 0x1e6c, 0x1e6d }, { 0x1e6e, 0x1e6f },
+            { 0x1e70, 0x1e71 }, { 0x1e72, 0x1e73 }, { 0x1e74, 0x1e75 }, { 0x1e76, 0x1e77 }, { 0x1e78, 0x1e79 }, { 0x1e7a, 0x1e7b }, { 0x1e7c, 0x1e7d }, { 0x1e7e, 0x1e7f },
+            { 0x1e80, 0x1e81 }, { 0x1e82, 0x1e83 }, { 0x1e84, 0x1e85 }, { 0x1e86, 0x1e87 }, { 0x1e88, 0x1e89 }, { 0x1e8a, 0x1e8b }, { 0x1e8c, 0x1e8d }, { 0x1e8e, 0x1e8f },
+            { 0x1e90, 0x1e91 }, { 0x1e92, 0x1e93 }, { 0x1e94, 0x1e95 }, { 0x1e9b, 0x1e61 }, { 0x1ea0, 0x1ea1 }, { 0x1ea2, 0x1ea3 }, { 0x1ea4, 0x1ea5 }, { 0x1ea6, 0x1ea7 },
+            { 0x1ea8, 0x1ea9 }, { 0x1eaa, 0x1eab }, { 0x1eac, 0x1ead }, { 0x1eae, 0x1eaf }, { 0x1eb0, 0x1eb1 }, { 0x1eb2, 0x1eb3 }, { 0x1eb4, 0x1eb5 }, { 0x1eb6, 0x1eb7 },
+            { 0x1eb8, 0x1eb9 }, { 0x1eba, 0x1ebb }, { 0x1ebc, 0x1ebd }, { 0x1ebe, 0x1ebf }, { 0x1ec0, 0x1ec1 }, { 0x1ec2, 0x1ec3 }, { 0x1ec4, 0x1ec5 }, { 0x1ec6, 0x1ec7 },
+            { 0x1ec8, 0x1ec9 }, { 0x1eca, 0x1ecb }, { 0x1ecc, 0x1ecd }, { 0x1ece, 0x1ecf }, { 0x1ed0, 0x1ed1 }, { 0x1ed2, 0x1ed3 }, { 0x1ed4, 0x1ed5 }, { 0x1ed6, 0x1ed7 },
+            { 0x1ed8, 0x1ed9 }, { 0x1eda, 0x1edb }, { 0x1edc, 0x1edd }, { 0x1ede, 0x1edf }, { 0x1ee0, 0x1ee1 }, { 0x1ee2, 0x1ee3 }, { 0x1ee4, 0x1ee5 }, { 0x1ee6, 0x1ee7 },
+            { 0x1ee8, 0x1ee9 }, { 0x1eea, 0x1eeb }, { 0x1eec, 0x1eed }, { 0x1eee, 0x1eef }, { 0x1ef0, 0x1ef1 }, { 0x1ef2, 0x1ef3 }, { 0x1ef4, 0x1ef5 }, { 0x1ef6, 0x1ef7 },
+            { 0x1ef8, 0x1ef9 }, { 0x1f59, 0x1f51 }, { 0x1f5b, 0x1f53 }, { 0x1f5d, 0x1f55 }, { 0x1f5f, 0x1f57 }, { 0x1fb8, 0x1fb0 }, { 0x1fb9, 0x1fb1 }, { 0x1fba, 0x1f70 },
+            { 0x1fbb, 0x1f71 }, { 0x1fbe, 0x03b9 }, { 0x1fd8, 0x1fd0 }, { 0x1fd9, 0x1fd1 }, { 0x1fda, 0x1f76 }, { 0x1fdb, 0x1f77 }, { 0x1fe8, 0x1fe0 }, { 0x1fe9, 0x1fe1 },
+            { 0x1fea, 0x1f7a }, { 0x1feb, 0x1f7b }, { 0x1fec, 0x1fe5 }, { 0x1ff8, 0x1f78 }, { 0x1ff9, 0x1f79 }, { 0x1ffa, 0x1f7c }, { 0x1ffb, 0x1f7d }, { 0x2126, 0x03c9 },
+            { 0x212a, 0x006b }, { 0x212b, 0x00e5 },
+        };
+
+        /* This maps single codepoint to two codepoints. */
+        static const struct {
+            int src_codepoint;
+            int dest_codepoint0;
+            int dest_codepoint1;
+        } double_map[] = {
+            { 0x00df, 0x0073, 0x0073 }, { 0x0130, 0x0069, 0x0307 }, { 0x0149, 0x02bc, 0x006e }, { 0x01f0, 0x006a, 0x030c }, { 0x0587, 0x0565, 0x0582 }, { 0x1e96, 0x0068, 0x0331 },
+            { 0x1e97, 0x0074, 0x0308 }, { 0x1e98, 0x0077, 0x030a }, { 0x1e99, 0x0079, 0x030a }, { 0x1e9a, 0x0061, 0x02be }, { 0x1f50, 0x03c5, 0x0313 }, { 0x1f80, 0x1f00, 0x03b9 },
+            { 0x1f81, 0x1f01, 0x03b9 }, { 0x1f82, 0x1f02, 0x03b9 }, { 0x1f83, 0x1f03, 0x03b9 }, { 0x1f84, 0x1f04, 0x03b9 }, { 0x1f85, 0x1f05, 0x03b9 }, { 0x1f86, 0x1f06, 0x03b9 },
+            { 0x1f87, 0x1f07, 0x03b9 }, { 0x1f88, 0x1f00, 0x03b9 }, { 0x1f89, 0x1f01, 0x03b9 }, { 0x1f8a, 0x1f02, 0x03b9 }, { 0x1f8b, 0x1f03, 0x03b9 }, { 0x1f8c, 0x1f04, 0x03b9 },
+            { 0x1f8d, 0x1f05, 0x03b9 }, { 0x1f8e, 0x1f06, 0x03b9 }, { 0x1f8f, 0x1f07, 0x03b9 }, { 0x1f90, 0x1f20, 0x03b9 }, { 0x1f91, 0x1f21, 0x03b9 }, { 0x1f92, 0x1f22, 0x03b9 },
+            { 0x1f93, 0x1f23, 0x03b9 }, { 0x1f94, 0x1f24, 0x03b9 }, { 0x1f95, 0x1f25, 0x03b9 }, { 0x1f96, 0x1f26, 0x03b9 }, { 0x1f97, 0x1f27, 0x03b9 }, { 0x1f98, 0x1f20, 0x03b9 },
+            { 0x1f99, 0x1f21, 0x03b9 }, { 0x1f9a, 0x1f22, 0x03b9 }, { 0x1f9b, 0x1f23, 0x03b9 }, { 0x1f9c, 0x1f24, 0x03b9 }, { 0x1f9d, 0x1f25, 0x03b9 }, { 0x1f9e, 0x1f26, 0x03b9 },
+            { 0x1f9f, 0x1f27, 0x03b9 }, { 0x1fa0, 0x1f60, 0x03b9 }, { 0x1fa1, 0x1f61, 0x03b9 }, { 0x1fa2, 0x1f62, 0x03b9 }, { 0x1fa3, 0x1f63, 0x03b9 }, { 0x1fa4, 0x1f64, 0x03b9 },
+            { 0x1fa5, 0x1f65, 0x03b9 }, { 0x1fa6, 0x1f66, 0x03b9 }, { 0x1fa7, 0x1f67, 0x03b9 }, { 0x1fa8, 0x1f60, 0x03b9 }, { 0x1fa9, 0x1f61, 0x03b9 }, { 0x1faa, 0x1f62, 0x03b9 },
+            { 0x1fab, 0x1f63, 0x03b9 }, { 0x1fac, 0x1f64, 0x03b9 }, { 0x1fad, 0x1f65, 0x03b9 }, { 0x1fae, 0x1f66, 0x03b9 }, { 0x1faf, 0x1f67, 0x03b9 }, { 0x1fb2, 0x1f70, 0x03b9 },
+            { 0x1fb3, 0x03b1, 0x03b9 }, { 0x1fb4, 0x03ac, 0x03b9 }, { 0x1fb6, 0x03b1, 0x0342 }, { 0x1fbc, 0x03b1, 0x03b9 }, { 0x1fc2, 0x1f74, 0x03b9 }, { 0x1fc3, 0x03b7, 0x03b9 },
+            { 0x1fc4, 0x03ae, 0x03b9 }, { 0x1fc6, 0x03b7, 0x0342 }, { 0x1fcc, 0x03b7, 0x03b9 }, { 0x1fd6, 0x03b9, 0x0342 }, { 0x1fe4, 0x03c1, 0x0313 }, { 0x1fe6, 0x03c5, 0x0342 },
+            { 0x1ff2, 0x1f7c, 0x03b9 }, { 0x1ff3, 0x03c9, 0x03b9 }, { 0x1ff4, 0x03ce, 0x03b9 }, { 0x1ff6, 0x03c9, 0x0342 }, { 0x1ffc, 0x03c9, 0x03b9 }, { 0xfb00, 0x0066, 0x0066 },
+            { 0xfb01, 0x0066, 0x0069 }, { 0xfb02, 0x0066, 0x006c }, { 0xfb05, 0x0073, 0x0074 }, { 0xfb06, 0x0073, 0x0074 }, { 0xfb13, 0x0574, 0x0576 }, { 0xfb14, 0x0574, 0x0565 },
+            { 0xfb15, 0x0574, 0x056b }, { 0xfb16, 0x057e, 0x0576 }, { 0xfb17, 0x0574, 0x056d }
+        };
+
+        /* This maps single codepoint to three codepoints. */
+        static const struct {
+            int src_codepoint;
+            int dest_codepoint0;
+            int dest_codepoint1;
+            int dest_codepoint2;
+        } triple_map[] = {
+            { 0x0390, 0x03b9, 0x0308, 0x0301 }, { 0x03b0, 0x03c5, 0x0308, 0x0301 }, { 0x1f52, 0x03c5, 0x0313, 0x0300 }, { 0x1f54, 0x03c5, 0x0313, 0x0301 },
+            { 0x1f56, 0x03c5, 0x0313, 0x0342 }, { 0x1fb7, 0x03b1, 0x0342, 0x03b9 }, { 0x1fc7, 0x03b7, 0x0342, 0x03b9 }, { 0x1fd2, 0x03b9, 0x0308, 0x0300 },
+            { 0x1fd3, 0x03b9, 0x0308, 0x0301 }, { 0x1fd7, 0x03b9, 0x0308, 0x0342 }, { 0x1fe2, 0x03c5, 0x0308, 0x0300 }, { 0x1fe3, 0x03c5, 0x0308, 0x0301 },
+            { 0x1fe7, 0x03c5, 0x0308, 0x0342 }, { 0x1ff7, 0x03c9, 0x0342, 0x03b9 }, { 0xfb03, 0x0066, 0x0066, 0x0069 }, { 0xfb04, 0x0066, 0x0066, 0x006c }
+        };
+
+        int i;
+
+        /* Fast path for ASCII characters. */
+        if(codepoint <= 0x7f) {
+            info->codepoints[0] = codepoint;
+            if(ISUPPER_(codepoint))
+                info->codepoints[0] += 'a' - 'A';
+            info->n_codepoints = 1;
+            return;
+        }
+
+        for(i = 0; i < SIZEOF_ARRAY(range_map); i++) {
+            if(range_map[i].min_codepoint <= codepoint && codepoint <= range_map[i].max_codepoint) {
+                info->codepoints[0] = codepoint + range_map[i].offset;
+                info->n_codepoints = 1;
+                return;
+            }
+        }
+
+        for(i = 0; i < SIZEOF_ARRAY(single_map); i++) {
+            if(codepoint == single_map[i].src_codepoint) {
+                info->codepoints[0] = single_map[i].dest_codepoint;
+                info->n_codepoints = 1;
+                return;
+            }
+        }
+
+        for(i = 0; i < SIZEOF_ARRAY(double_map); i++) {
+            if(codepoint == double_map[i].src_codepoint) {
+                info->codepoints[0] = double_map[i].dest_codepoint0;
+                info->codepoints[1] = double_map[i].dest_codepoint1;
+                info->n_codepoints = 2;
+                return;
+            }
+        }
+
+        for(i = 0; i < SIZEOF_ARRAY(triple_map); i++) {
+            if(codepoint == triple_map[i].src_codepoint) {
+                info->codepoints[0] = triple_map[i].dest_codepoint0;
+                info->codepoints[1] = triple_map[i].dest_codepoint1;
+                info->codepoints[2] = triple_map[i].dest_codepoint2;
+                info->n_codepoints = 3;
+                return;
+            }
+        }
+
+        info->codepoints[0] = codepoint;
+        info->n_codepoints = 1;
+    }
+#endif
+
+
+#if defined MD4C_USE_UTF16
+    #define IS_UTF16_SURROGATE_HI(word)     (((WORD)(word) & 0xfc00) == 0xd800)
+    #define IS_UTF16_SURROGATE_LO(word)     (((WORD)(word) & 0xfc00) == 0xdc00)
+    #define UTF16_DECODE_SURROGATE(hi, lo)  (0x10000 + ((((unsigned)(hi) & 0x3ff) << 10) | (((unsigned)(lo) & 0x3ff) << 0)))
+
+    static int
+    md_decode_utf16le__(const CHAR* str, SZ str_size, SZ* p_size)
+    {
+        if(IS_UTF16_SURROGATE_HI(str[0])) {
+            if(1 < str_size && IS_UTF16_SURROGATE_LO(str[1])) {
+                if(p_size != NULL)
+                    *p_size = 2;
+                return UTF16_DECODE_SURROGATE(str[0], str[1]);
+            }
+        }
+
+        if(p_size != NULL)
+            *p_size = 1;
+        return str[0];
+    }
+
+    static int
+    md_decode_utf16le_before__(MD_CTX* ctx, OFF off)
+    {
+        if(off > 2 && IS_UTF16_SURROGATE_HI(CH(off-2)) && IS_UTF16_SURROGATE_LO(CH(off-1)))
+            return UTF16_DECODE_SURROGATE(CH(off-2), CH(off-1));
+
+        return CH(off);
+    }
+
+    /* No whitespace uses surrogates, so no decoding needed here. */
+    #define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
+    #define ISUNICODEWHITESPACE(off)        md_is_unicode_whitespace__(CH(off))
+    #define ISUNICODEWHITESPACEBEFORE(off)  md_is_unicode_whitespace__(CH((off)-1))
+
+    #define ISUNICODEPUNCT(off)             md_is_unicode_punct__(md_decode_utf16le__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEPUNCTBEFORE(off)       md_is_unicode_punct__(md_decode_utf16le_before__(ctx, off))
+
+    static inline int
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
+    {
+        return md_decode_utf16le__(str+off, str_size-off, p_char_size);
+    }
+#elif defined MD4C_USE_UTF8
+    #define IS_UTF8_LEAD1(byte)     ((unsigned char)(byte) <= 0x7f)
+    #define IS_UTF8_LEAD2(byte)     (((unsigned char)(byte) & 0xe0) == 0xc0)
+    #define IS_UTF8_LEAD3(byte)     (((unsigned char)(byte) & 0xf0) == 0xe0)
+    #define IS_UTF8_LEAD4(byte)     (((unsigned char)(byte) & 0xf8) == 0xf0)
+    #define IS_UTF8_TAIL(byte)      (((unsigned char)(byte) & 0xc0) == 0x80)
+
+    static int
+    md_decode_utf8__(const CHAR* str, SZ str_size, SZ* p_size)
+    {
+        if(!IS_UTF8_LEAD1(str[0])) {
+            if(IS_UTF8_LEAD2(str[0])) {
+                if(1 < str_size && IS_UTF8_TAIL(str[1])) {
+                    if(p_size != NULL)
+                        *p_size = 2;
+
+                    return (((unsigned int)str[0] & 0x1f) << 6) |
+                           (((unsigned int)str[1] & 0x3f) << 0);
+                }
+            } else if(IS_UTF8_LEAD3(str[0])) {
+                if(2 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2])) {
+                    if(p_size != NULL)
+                        *p_size = 3;
+
+                    return (((unsigned int)str[0] & 0x0f) << 12) |
+                           (((unsigned int)str[1] & 0x3f) << 6) |
+                           (((unsigned int)str[2] & 0x3f) << 0);
+                }
+            } else if(IS_UTF8_LEAD4(str[0])) {
+                if(3 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2]) && IS_UTF8_TAIL(str[3])) {
+                    if(p_size != NULL)
+                        *p_size = 4;
+
+                    return (((unsigned int)str[0] & 0x07) << 18) |
+                           (((unsigned int)str[1] & 0x3f) << 12) |
+                           (((unsigned int)str[2] & 0x3f) << 6) |
+                           (((unsigned int)str[3] & 0x3f) << 0);
+                }
+            }
+        }
+
+        if(p_size != NULL)
+            *p_size = 1;
+        return str[0];
+    }
+
+    static int
+    md_decode_utf8_before__(MD_CTX* ctx, OFF off)
+    {
+        if(!IS_UTF8_LEAD1(CH(off-1))) {
+            if(off > 1 && IS_UTF8_LEAD2(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-2) & 0x1f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+
+            if(off > 2 && IS_UTF8_LEAD3(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-3) & 0x0f) << 12) |
+                       (((unsigned int)CH(off-2) & 0x3f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+
+            if(off > 3 && IS_UTF8_LEAD4(CH(off-4)) && IS_UTF8_TAIL(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-4) & 0x07) << 18) |
+                       (((unsigned int)CH(off-3) & 0x3f) << 12) |
+                       (((unsigned int)CH(off-2) & 0x3f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+        }
+
+        return CH(off-1);
+    }
+
+    #define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
+    #define ISUNICODEWHITESPACE(off)        md_is_unicode_whitespace__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEWHITESPACEBEFORE(off)  md_is_unicode_whitespace__(md_decode_utf8_before__(ctx, off))
+
+    #define ISUNICODEPUNCT(off)             md_is_unicode_punct__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEPUNCTBEFORE(off)       md_is_unicode_punct__(md_decode_utf8_before__(ctx, off))
+
+    static inline int
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
+    {
+        return md_decode_utf8__(str+off, str_size-off, p_char_size);
+    }
+#else
+    #define ISUNICODEWHITESPACE_(codepoint) ISWHITESPACE_(codepoint)
+    #define ISUNICODEWHITESPACE(off)        ISWHITESPACE(off)
+    #define ISUNICODEWHITESPACEBEFORE(off)  ISWHITESPACE((off)-1)
+
+    #define ISUNICODEPUNCT(off)             ISPUNCT(off)
+    #define ISUNICODEPUNCTBEFORE(off)       ISPUNCT((off)-1)
+
+    static inline void
+    md_get_unicode_fold_info(int codepoint, MD_UNICODE_FOLD_INFO* info)
+    {
+        info->codepoints[0] = codepoint;
+        if(ISUPPER_(codepoint))
+            info->codepoints[0] += 'a' - 'A';
+        info->n_codepoints = 1;
+    }
+
+    static inline int
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_size)
+    {
+        *p_size = 1;
+        return str[off];
+    }
+#endif
+
+
+/*************************************
+ ***  Helper string manipulations  ***
+ *************************************/
+
+/* Fill buffer with copy of the string between 'beg' and 'end' but replace any
+ * line breaks with given replacement character.
+ *
+ * NOTE: Caller is responsible to make sure the buffer is large enough.
+ * (Given the output is always shorter then input, (end - beg) is good idea
+ * what the caller should allocate.)
+ */
+static void
+md_merge_lines(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
+               CHAR line_break_replacement_char, CHAR* buffer, SZ* p_size)
+{
+    CHAR* ptr = buffer;
+    int line_index = 0;
+    OFF off = beg;
+
+    while(1) {
+        const MD_LINE* line = &lines[line_index];
+        OFF line_end = line->end;
+        if(end < line_end)
+            line_end = end;
+
+        while(off < line_end) {
+            *ptr = CH(off);
+            ptr++;
+            off++;
+        }
+
+        if(off >= end) {
+            *p_size = ptr - buffer;
+            return;
+        }
+
+        *ptr = line_break_replacement_char;
+        ptr++;
+
+        line_index++;
+        off = lines[line_index].beg;
+    }
+}
+
+/* Wrapper of md_merge_lines() which allocates new buffer for the output string.
+ */
+static int
+md_merge_lines_alloc(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
+                    CHAR line_break_replacement_char, CHAR** p_str, SZ* p_size)
+{
+    CHAR* buffer;
+
+    buffer = (CHAR*) malloc(sizeof(CHAR) * (end - beg));
+    if(buffer == NULL) {
+        MD_LOG("malloc() failed.");
+        return -1;
+    }
+
+    md_merge_lines(ctx, beg, end, lines, n_lines,
+                line_break_replacement_char, buffer, p_size);
+
+    *p_str = buffer;
+    return 0;
+}
+
+static OFF
+md_skip_unicode_whitespace(const CHAR* label, OFF off, SZ size)
+{
+    SZ char_size;
+    int codepoint;
+
+    while(off < size) {
+        codepoint = md_decode_unicode(label, off, size, &char_size);
+        if(!ISUNICODEWHITESPACE_(codepoint)  &&  !ISNEWLINE_(label[off]))
+            break;
+        off += char_size;
+    }
+
+    return off;
+}
+
+
+/******************************
+ ***  Recognizing raw HTML  ***
+ ******************************/
+
+/* md_is_html_tag() may be called when processing inlines (inline raw HTML)
+ * or when breaking document to blocks (checking for start of HTML block type 7).
+ *
+ * When breaking document to blocks, we do not yet know line boundaries, but
+ * in that case the whole tag has to live on a single line. We distinguish this
+ * by n_lines == 0.
+ */
+static int
+md_is_html_tag(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    int attr_state;
+    OFF off = beg;
+    OFF line_end = (n_lines > 0) ? lines[0].end : ctx->size;
+    int i = 0;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 1 >= line_end)
+        return FALSE;
+    off++;
+
+    /* For parsing attributes, we need a little state automaton below.
+     * State -1: no attributes are allowed.
+     * State 0: attribute could follow after some whitespace.
+     * State 1: after a whitespace (attribute name may follow).
+     * State 2: after attribute name ('=' MAY follow).
+     * State 3: after '=' (value specification MUST follow).
+     * State 41: in middle of unquoted attribute value.
+     * State 42: in middle of single-quoted attribute value.
+     * State 43: in middle of double-quoted attribute value.
+     */
+    attr_state = 0;
+
+    if(CH(off) == _T('/')) {
+        /* Closer tag "</ ... >". No attributes may be present. */
+        attr_state = -1;
+        off++;
+    }
+
+    /* Tag name */
+    if(off >= line_end  ||  !ISALPHA(off))
+        return FALSE;
+    off++;
+    while(off < line_end  &&  (ISALNUM(off)  ||  CH(off) == _T('-')))
+        off++;
+
+    /* (Optional) attributes (if not closer), (optional) '/' (if not closer)
+     * and final '>'. */
+    while(1) {
+        while(off < line_end  &&  !ISNEWLINE(off)) {
+            if(attr_state > 40) {
+                if(attr_state == 41 && (ISBLANK(off) || ISANYOF(off, _T("\"'=<>`")))) {
+                    attr_state = 0;
+                    off--;  /* Put the char back for re-inspection in the new state. */
+                } else if(attr_state == 42 && CH(off) == _T('\'')) {
+                    attr_state = 0;
+                } else if(attr_state == 43 && CH(off) == _T('"')) {
+                    attr_state = 0;
+                }
+                off++;
+            } else if(ISWHITESPACE(off)) {
+                if(attr_state == 0)
+                    attr_state = 1;
+                off++;
+            } else if(attr_state <= 2 && CH(off) == _T('>')) {
+                /* End. */
+                goto done;
+            } else if(attr_state <= 2 && CH(off) == _T('/') && off+1 < line_end && CH(off+1) == _T('>')) {
+                /* End with digraph '/>' */
+                off++;
+                goto done;
+            } else if((attr_state == 1 || attr_state == 2) && (ISALPHA(off) || CH(off) == _T('_') || CH(off) == _T(':'))) {
+                off++;
+                /* Attribute name */
+                while(off < line_end && (ISALNUM(off) || ISANYOF(off, _T("_.:-"))))
+                    off++;
+                attr_state = 2;
+            } else if(attr_state == 2 && CH(off) == _T('=')) {
+                /* Attribute assignment sign */
+                off++;
+                attr_state = 3;
+            } else if(attr_state == 3) {
+                /* Expecting start of attribute value. */
+                if(CH(off) == _T('"'))
+                    attr_state = 43;
+                else if(CH(off) == _T('\''))
+                    attr_state = 42;
+                else if(!ISANYOF(off, _T("\"'=<>`"))  &&  !ISNEWLINE(off))
+                    attr_state = 41;
+                else
+                    return FALSE;
+                off++;
+            } else {
+                /* Anything unexpected. */
+                return FALSE;
+            }
+        }
+
+        /* We have to be on a single line. See definition of start condition
+         * of HTML block, type 7. */
+        if(n_lines == 0)
+            return FALSE;
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+        line_end = lines[i].end;
+
+        if(attr_state == 0  ||  attr_state == 41)
+            attr_state = 1;
+
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_html_comment(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+    int i = 0;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 4 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('!')  ||  CH(off+2) != _T('-')  ||  CH(off+3) != _T('-'))
+        return FALSE;
+    off += 4;
+
+    /* ">" and "->" must follow the opening. */
+    if(off < lines[0].end  &&  CH(off) == _T('>'))
+        return FALSE;
+    if(off+1 < lines[0].end  &&  CH(off) == _T('-')  &&  CH(off+1) == _T('>'))
+        return FALSE;
+
+    while(1) {
+        while(off + 2 < lines[i].end) {
+            if(CH(off) == _T('-')  &&  CH(off+1) == _T('-')) {
+                if(CH(off+2) == _T('>')) {
+                    /* Success. */
+                    off += 2;
+                    goto done;
+                } else {
+                    /* "--" is prohibited inside the comment. */
+                    return FALSE;
+                }
+            }
+
+            off++;
+        }
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_html_processing_instruction(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+    int i = 0;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 2 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('?'))
+        return FALSE;
+    off += 2;
+
+    while(1) {
+        while(off + 1 < lines[i].end) {
+            if(CH(off) == _T('?')  &&  CH(off+1) == _T('>')) {
+                /* Success. */
+                off++;
+                goto done;
+            }
+
+            off++;
+        }
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_html_declaration(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+    int i = 0;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 2 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('!'))
+        return FALSE;
+    off += 2;
+
+    /* Declaration name. */
+    if(off >= lines[0].end  ||  !ISALPHA(off))
+        return FALSE;
+    off++;
+    while(off < lines[0].end  &&  ISALPHA(off))
+        off++;
+    if(off < lines[0].end  &&  !ISWHITESPACE(off))
+        return FALSE;
+
+    while(1) {
+        while(off < lines[i].end) {
+            if(CH(off) == _T('>')) {
+                /* Success. */
+                goto done;
+            }
+
+            off++;
+        }
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_html_cdata(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    static const CHAR open_str[] = _T("<![CDATA[");
+    static const SZ open_size = SIZEOF_ARRAY(open_str) - 1;
+
+    OFF off = beg;
+    int i = 0;
+
+    if(off + open_size >= lines[0].end)
+        return FALSE;
+    if(memcmp(STR(off), open_str, open_size) != 0)
+        return FALSE;
+    off += open_size;
+
+    while(1) {
+        while(off + 2 < lines[i].end) {
+            if(CH(off) == _T(']')  &&  CH(off+1) == _T(']')  &&  CH(off+2) == _T('>')) {
+                /* Success. */
+                off += 2;
+                goto done;
+            }
+
+            off++;
+        }
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_html_any(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    if(md_is_html_tag(ctx, lines, n_lines, beg, max_end, p_end) == TRUE)
+        return TRUE;
+    if(md_is_html_comment(ctx, lines, n_lines, beg, max_end, p_end) == TRUE)
+        return TRUE;
+    if(md_is_html_processing_instruction(ctx, lines, n_lines, beg, max_end, p_end) == TRUE)
+        return TRUE;
+    if(md_is_html_declaration(ctx, lines, n_lines, beg, max_end, p_end) == TRUE)
+        return TRUE;
+    if(md_is_html_cdata(ctx, lines, n_lines, beg, max_end, p_end) == TRUE)
+        return TRUE;
+
+    return FALSE;
+}
+
+
+/****************************
+ ***  Recognizing Entity  ***
+ ****************************/
+
+static int
+md_is_hex_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < max_end  &&  ISXDIGIT_(text[off])  &&  off - beg <= 8)
+        off++;
+
+    if(1 <= off - beg  &&  off - beg <= 8) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_dec_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < max_end  &&  ISDIGIT_(text[off])  &&  off - beg <= 8)
+        off++;
+
+    if(1 <= off - beg  &&  off - beg <= 8) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_named_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    if(off < max_end  &&  ISALPHA_(text[off]))
+        off++;
+    else
+        return FALSE;
+
+    while(off < max_end  &&  ISALNUM_(text[off])  &&  off - beg <= 48)
+        off++;
+
+    if(2 <= off - beg  &&  off - beg <= 48) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_entity_str(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    int is_contents;
+    OFF off = beg;
+
+    MD_ASSERT(text[off] == _T('&'));
+    off++;
+
+    if(off+2 < max_end  &&  text[off] == _T('#')  &&  (text[off+1] == _T('x') || text[off+1] == _T('X')))
+        is_contents = md_is_hex_entity_contents(ctx, text, off+2, max_end, &off);
+    else if(off+1 < max_end  &&  text[off] == _T('#'))
+        is_contents = md_is_dec_entity_contents(ctx, text, off+1, max_end, &off);
+    else
+        is_contents = md_is_named_entity_contents(ctx, text, off, max_end, &off);
+
+    if(is_contents  &&  off < max_end  &&  text[off] == _T(';')) {
+        *p_end = off+1;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static inline int
+md_is_entity(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end)
+{
+    return md_is_entity_str(ctx, ctx->text, beg, max_end, p_end);
+}
+
+
+/******************************
+ ***  Attribute Management  ***
+ ******************************/
+
+typedef struct MD_ATTRIBUTE_BUILD_tag MD_ATTRIBUTE_BUILD;
+struct MD_ATTRIBUTE_BUILD_tag {
+    CHAR* text;
+    MD_TEXTTYPE* substr_types;
+    OFF* substr_offsets;
+    int substr_count;
+    int substr_alloc;
+    MD_TEXTTYPE trivial_types[1];
+    OFF trivial_offsets[2];
+};
+
+
+#define MD_BUILD_ATTR_NO_ESCAPES    0x0001
+
+static int
+md_build_attr_append_substr(MD_CTX* ctx, MD_ATTRIBUTE_BUILD* build,
+                            MD_TEXTTYPE type, OFF off)
+{
+    if(build->substr_count >= build->substr_alloc) {
+        MD_TEXTTYPE* new_substr_types;
+        OFF* new_substr_offsets;
+
+        build->substr_alloc = (build->substr_alloc == 0 ? 8 : build->substr_alloc * 2);
+
+        new_substr_types = (MD_TEXTTYPE*) realloc(build->substr_types,
+                                    build->substr_alloc * sizeof(MD_TEXTTYPE));
+        if(new_substr_types == NULL) {
+            MD_LOG("realloc() failed.");
+            return -1;
+        }
+        /* Note +1 to reserve space for final offset (== raw_size). */
+        new_substr_offsets = (OFF*) realloc(build->substr_offsets,
+                                    (build->substr_alloc+1) * sizeof(OFF));
+        if(new_substr_offsets == NULL) {
+            MD_LOG("realloc() failed.");
+            free(new_substr_types);
+            return -1;
+        }
+
+        build->substr_types = new_substr_types;
+        build->substr_offsets = new_substr_offsets;
+    }
+
+    build->substr_types[build->substr_count] = type;
+    build->substr_offsets[build->substr_count] = off;
+    build->substr_count++;
+    return 0;
+}
+
+static void
+md_free_attribute(MD_CTX* ctx, MD_ATTRIBUTE_BUILD* build)
+{
+    if(build->substr_alloc > 0) {
+        free(build->text);
+        free(build->substr_types);
+        free(build->substr_offsets);
+    }
+}
+
+static int
+md_build_attribute(MD_CTX* ctx, const CHAR* raw_text, SZ raw_size,
+                   unsigned flags, MD_ATTRIBUTE* attr, MD_ATTRIBUTE_BUILD* build)
+{
+    OFF raw_off, off;
+    int is_trivial;
+    int ret = 0;
+
+    memset(build, 0, sizeof(MD_ATTRIBUTE_BUILD));
+
+    /* If there is no backslash and no ampersand, build trivial attribute
+     * without any malloc(). */
+    is_trivial = TRUE;
+    for(raw_off = 0; raw_off < raw_size; raw_off++) {
+        if(ISANYOF3_(raw_text[raw_off], _T('\\'), _T('&'), _T('\0'))) {
+            is_trivial = FALSE;
+            break;
+        }
+    }
+
+    if(is_trivial) {
+        build->text = (CHAR*) (raw_size ? raw_text : NULL);
+        build->substr_types = build->trivial_types;
+        build->substr_offsets = build->trivial_offsets;
+        build->substr_count = 1;
+        build->substr_alloc = 0;
+        build->trivial_types[0] = MD_TEXT_NORMAL;
+        build->trivial_offsets[0] = 0;
+        build->trivial_offsets[1] = raw_size;
+        off = raw_size;
+    } else {
+        build->text = (CHAR*) malloc(raw_size * sizeof(CHAR));
+        if(build->text == NULL) {
+            MD_LOG("malloc() failed.");
+            goto abort;
+        }
+
+        raw_off = 0;
+        off = 0;
+
+        while(raw_off < raw_size) {
+            if(raw_text[raw_off] == _T('\0')) {
+                MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_NULLCHAR, off));
+                memcpy(build->text + off, raw_text + raw_off, 1);
+                off++;
+                raw_off++;
+                continue;
+            }
+
+            if(raw_text[raw_off] == _T('&')) {
+                OFF ent_end;
+
+                if(md_is_entity_str(ctx, raw_text, raw_off, raw_size, &ent_end)) {
+                    MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_ENTITY, off));
+                    memcpy(build->text + off, raw_text + raw_off, ent_end - raw_off);
+                    off += ent_end - raw_off;
+                    raw_off = ent_end;
+                    continue;
+                }
+            }
+
+            if(build->substr_count == 0  ||  build->substr_types[build->substr_count-1] != MD_TEXT_NORMAL)
+                MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_NORMAL, off));
+
+            if(!(flags & MD_BUILD_ATTR_NO_ESCAPES)  &&
+               raw_text[raw_off] == _T('\\')  &&  raw_off+1 < raw_size  &&
+               (ISPUNCT_(raw_text[raw_off+1]) || ISNEWLINE_(raw_text[raw_off+1])))
+                raw_off++;
+
+            build->text[off++] = raw_text[raw_off++];
+        }
+        build->substr_offsets[build->substr_count] = off;
+    }
+
+    attr->text = build->text;
+    attr->size = off;
+    attr->substr_offsets = build->substr_offsets;
+    attr->substr_types = build->substr_types;
+    return 0;
+
+abort:
+    md_free_attribute(ctx, build);
+    return -1;
+}
+
+
+/*********************************************
+ ***  Dictionary of Reference Definitions  ***
+ *********************************************/
+
+#define MD_FNV1A_BASE       2166136261
+#define MD_FNV1A_PRIME      16777619
+
+static inline unsigned
+md_fnv1a(unsigned base, const void* data, size_t n)
+{
+    const unsigned char* buf = (const unsigned char*) data;
+    unsigned hash = base;
+    size_t i;
+
+    for(i = 0; i < n; i++) {
+        hash ^= buf[i];
+        hash *= MD_FNV1A_PRIME;
+    }
+
+    return hash;
+}
+
+
+struct MD_REF_DEF_tag {
+    CHAR* label;
+    CHAR* title;
+    unsigned hash;
+    SZ label_size                   : 24;
+    unsigned label_needs_free       :  1;
+    unsigned title_needs_free       :  1;
+    SZ title_size;
+    OFF dest_beg;
+    OFF dest_end;
+};
+
+/* Label equivalence is quite complicated with regards to whitespace and case
+ * folding. This complicates computing a hash of it as well as direct comparison
+ * of two labels. */
+
+static unsigned
+md_link_label_hash(const CHAR* label, SZ size)
+{
+    unsigned hash = MD_FNV1A_BASE;
+    OFF off;
+    int codepoint;
+    int is_whitespace = FALSE;
+
+    off = md_skip_unicode_whitespace(label, 0, size);
+    while(off < size) {
+        SZ char_size;
+
+        codepoint = md_decode_unicode(label, off, size, &char_size);
+        is_whitespace = ISUNICODEWHITESPACE_(codepoint) || ISNEWLINE_(label[off]);
+
+        if(is_whitespace) {
+            codepoint = ' ';
+            hash = md_fnv1a(hash, &codepoint, 1 * sizeof(int));
+
+            off = md_skip_unicode_whitespace(label, off, size);
+        } else {
+            MD_UNICODE_FOLD_INFO fold_info;
+
+            md_get_unicode_fold_info(codepoint, &fold_info);
+            hash = md_fnv1a(hash, fold_info.codepoints, fold_info.n_codepoints * sizeof(int));
+
+            off += char_size;
+        }
+    }
+
+    if(!is_whitespace) {
+        codepoint = ' ';
+        hash = md_fnv1a(hash, &codepoint, 1 * sizeof(int));
+    }
+
+    return hash;
+}
+
+static int
+md_link_label_cmp(const CHAR* a_label, SZ a_size, const CHAR* b_label, SZ b_size)
+{
+    OFF a_off;
+    OFF b_off;
+
+    /* The slow path, with Unicode case folding and Unicode whitespace collapsing. */
+    a_off = md_skip_unicode_whitespace(a_label, 0, a_size);
+    b_off = md_skip_unicode_whitespace(b_label, 0, b_size);
+    while(a_off < a_size  ||  b_off < b_size) {
+        int a_codepoint, b_codepoint;
+        SZ a_char_size, b_char_size;
+        int a_is_whitespace, b_is_whitespace;
+
+        if(a_off < a_size) {
+            a_codepoint = md_decode_unicode(a_label, a_off, a_size, &a_char_size);
+            a_is_whitespace = ISUNICODEWHITESPACE_(a_codepoint) || ISNEWLINE_(a_label[a_off]);
+        } else {
+            /* Treat end of label as a whitespace. */
+            a_codepoint = -1;
+            a_is_whitespace = TRUE;
+        }
+
+        if(b_off < b_size) {
+            b_codepoint = md_decode_unicode(b_label, b_off, b_size, &b_char_size);
+            b_is_whitespace = ISUNICODEWHITESPACE_(b_codepoint) || ISNEWLINE_(b_label[b_off]);
+        } else {
+            /* Treat end of label as a whitespace. */
+            b_codepoint = -1;
+            b_is_whitespace = TRUE;
+        }
+
+        if(a_is_whitespace || b_is_whitespace) {
+            if(!a_is_whitespace || !b_is_whitespace)
+                return (a_is_whitespace ? -1 : +1);
+
+            a_off = md_skip_unicode_whitespace(a_label, a_off, a_size);
+            b_off = md_skip_unicode_whitespace(b_label, b_off, b_size);
+        } else {
+            MD_UNICODE_FOLD_INFO a_fold_info, b_fold_info;
+            int cmp;
+
+            md_get_unicode_fold_info(a_codepoint, &a_fold_info);
+            md_get_unicode_fold_info(b_codepoint, &b_fold_info);
+
+            if(a_fold_info.n_codepoints != b_fold_info.n_codepoints)
+                return (a_fold_info.n_codepoints - b_fold_info.n_codepoints);
+            cmp = memcmp(a_fold_info.codepoints, b_fold_info.codepoints, a_fold_info.n_codepoints * sizeof(int));
+            if(cmp != 0)
+                return cmp;
+
+            a_off += a_char_size;
+            b_off += b_char_size;
+        }
+    }
+
+    return 0;
+}
+
+typedef struct MD_REF_DEF_LIST_tag MD_REF_DEF_LIST;
+struct MD_REF_DEF_LIST_tag {
+    int n_ref_defs;
+    int alloc_ref_defs;
+    MD_REF_DEF* ref_defs[];  /* Valid items always  point into ctx->ref_defs[] */
+};
+
+static int
+md_ref_def_cmp(const void* a, const void* b)
+{
+    const MD_REF_DEF* a_ref = *(const MD_REF_DEF**)a;
+    const MD_REF_DEF* b_ref = *(const MD_REF_DEF**)b;
+
+    if(a_ref->hash < b_ref->hash)
+        return -1;
+    else if(a_ref->hash > b_ref->hash)
+        return +1;
+    else
+        return md_link_label_cmp(a_ref->label, a_ref->label_size, b_ref->label, b_ref->label_size);
+}
+
+static int
+md_ref_def_cmp_stable(const void* a, const void* b)
+{
+    int cmp;
+
+    cmp = md_ref_def_cmp(a, b);
+
+    /* Ensure stability of the sorting. */
+    if(cmp == 0) {
+        const MD_REF_DEF* a_ref = *(const MD_REF_DEF**)a;
+        const MD_REF_DEF* b_ref = *(const MD_REF_DEF**)b;
+
+        if(a_ref < b_ref)
+            cmp = -1;
+        else if(a_ref > b_ref)
+            cmp = +1;
+        else
+            cmp = 0;
+    }
+
+    return cmp;
+}
+
+static int
+md_build_ref_def_hashtable(MD_CTX* ctx)
+{
+    int i, j;
+
+    if(ctx->n_ref_defs == 0)
+        return 0;
+
+    ctx->ref_def_hashtable_size = (ctx->n_ref_defs * 5) / 4;
+    ctx->ref_def_hashtable = malloc(ctx->ref_def_hashtable_size * sizeof(void*));
+    if(ctx->ref_def_hashtable == NULL) {
+        MD_LOG("malloc() failed.");
+        goto abort;
+    }
+    memset(ctx->ref_def_hashtable, 0, ctx->ref_def_hashtable_size * sizeof(void*));
+
+    /* Each member of ctx->ref_def_hashtable[] can be:
+     *  -- NULL,
+     *  -- pointer to the MD_REF_DEF in ctx->ref_defs[], or
+     *  -- pointer to a MD_REF_DEF_LIST, which holds multiple pointers to
+     *     such MD_REF_DEFs.
+     */
+    for(i = 0; i < ctx->n_ref_defs; i++) {
+        MD_REF_DEF* def = &ctx->ref_defs[i];
+        void* bucket;
+        MD_REF_DEF_LIST* list;
+
+        def->hash = md_link_label_hash(def->label, def->label_size);
+        bucket = ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size];
+
+        if(bucket == NULL) {
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = def;
+            continue;
+        }
+
+        if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs) {
+            /* The bucket already contains one ref. def. Lets see whether it
+             * is the same label (ref. def. duplicate) or different one
+             * (hash conflict). */
+            MD_REF_DEF* old_def = (MD_REF_DEF*) bucket;
+
+            if(md_link_label_cmp(def->label, def->label_size, old_def->label, old_def->label_size) == 0) {
+                /* Ignore this ref. def. */
+                continue;
+            }
+
+            /* Make the bucket capable of holding more ref. defs. */
+            list = (MD_REF_DEF_LIST*) malloc(sizeof(MD_REF_DEF_LIST) + 4 * sizeof(MD_REF_DEF));
+            if(list == NULL) {
+                MD_LOG("malloc() failed.");
+                goto abort;
+            }
+            list->ref_defs[0] = old_def;
+            list->ref_defs[1] = def;
+            list->n_ref_defs = 2;
+            list->alloc_ref_defs = 4;
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = list;
+            continue;
+        }
+
+        /* Append the def to the bucket list. */
+        list = (MD_REF_DEF_LIST*) bucket;
+        if(list->n_ref_defs >= list->alloc_ref_defs) {
+            MD_REF_DEF_LIST* list_tmp = (MD_REF_DEF_LIST*) realloc(list,
+                        sizeof(MD_REF_DEF_LIST) + 2 * list->alloc_ref_defs * sizeof(MD_REF_DEF));
+            if(list_tmp == NULL) {
+                MD_LOG("realloc() failed.");
+                goto abort;
+            }
+            list = list_tmp;
+            list->alloc_ref_defs *= 2;
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = list;
+        }
+
+        list->ref_defs[list->n_ref_defs] = def;
+        list->n_ref_defs++;
+    }
+
+    /* Sort the complex buckets so we can use bsearch() with them. */
+    for(i = 0; i < ctx->ref_def_hashtable_size; i++) {
+        void* bucket = ctx->ref_def_hashtable[i];
+        MD_REF_DEF_LIST* list;
+
+        if(bucket == NULL)
+            continue;
+        if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs)
+            continue;
+
+        list = (MD_REF_DEF_LIST*) bucket;
+        qsort(list->ref_defs, list->n_ref_defs, sizeof(MD_REF_DEF*), md_ref_def_cmp_stable);
+
+        /* Disable duplicates. */
+        for(j = 1; j < list->n_ref_defs; j++) {
+            if(md_ref_def_cmp(&list->ref_defs[j-1], &list->ref_defs[j]) == 0)
+                list->ref_defs[j] = list->ref_defs[j-1];
+        }
+    }
+
+    return 0;
+
+abort:
+    return -1;
+}
+
+static void
+md_free_ref_def_hashtable(MD_CTX* ctx)
+{
+    if(ctx->ref_def_hashtable != NULL) {
+        int i;
+
+        for(i = 0; i < ctx->ref_def_hashtable_size; i++) {
+            void* bucket = ctx->ref_def_hashtable[i];
+            if(bucket == NULL)
+                continue;
+            if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs)
+                continue;
+            free(bucket);
+        }
+
+        free(ctx->ref_def_hashtable);
+    }
+}
+
+static const MD_REF_DEF*
+md_lookup_ref_def(MD_CTX* ctx, const CHAR* label, SZ label_size)
+{
+    unsigned hash;
+    void* bucket;
+
+    if(ctx->ref_def_hashtable_size == 0)
+        return NULL;
+
+    hash = md_link_label_hash(label, label_size);
+    bucket = ctx->ref_def_hashtable[hash % ctx->ref_def_hashtable_size];
+
+    if(bucket == NULL) {
+        return NULL;
+    } else if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs) {
+        const MD_REF_DEF* def = (MD_REF_DEF*) bucket;
+
+        if(md_link_label_cmp(def->label, def->label_size, label, label_size) == 0)
+            return def;
+        else
+            return NULL;
+    } else {
+        MD_REF_DEF_LIST* list = (MD_REF_DEF_LIST*) bucket;
+        MD_REF_DEF key_buf;
+        const MD_REF_DEF* key = &key_buf;
+        const MD_REF_DEF** ret;
+
+        key_buf.label = (CHAR*) label;
+        key_buf.label_size = label_size;
+        key_buf.hash = md_link_label_hash(key_buf.label, key_buf.label_size);
+
+        ret = (const MD_REF_DEF**) bsearch(&key, list->ref_defs,
+                    list->n_ref_defs, sizeof(MD_REF_DEF*), md_ref_def_cmp);
+        if(ret != NULL)
+            return *ret;
+        else
+            return NULL;
+    }
+}
+
+
+/***************************
+ ***  Recognizing Links  ***
+ ***************************/
+
+/* Note this code is partially shared between processing inlines and blocks
+ * as reference definitions and links share some helper parser functions.
+ */
+
+typedef struct MD_LINK_ATTR_tag MD_LINK_ATTR;
+struct MD_LINK_ATTR_tag {
+    OFF dest_beg;
+    OFF dest_end;
+
+    CHAR* title;
+    SZ title_size;
+    int title_needs_free;
+};
+
+
+static int
+md_is_link_label(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg,
+                 OFF* p_end, int* p_beg_line_index, int* p_end_line_index,
+                 OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    OFF contents_beg = 0;
+    OFF contents_end = 0;
+    int line_index = 0;
+    int len = 0;
+
+    if(CH(off) != _T('['))
+        return FALSE;
+    off++;
+
+    while(1) {
+        OFF line_end = lines[line_index].end;
+
+        while(off < line_end) {
+            if(CH(off) == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                if(contents_end == 0) {
+                    contents_beg = off;
+                    *p_beg_line_index = line_index;
+                }
+                contents_end = off + 2;
+                off += 2;
+            } else if(CH(off) == _T('[')) {
+                return FALSE;
+            } else if(CH(off) == _T(']')) {
+                if(contents_beg < contents_end) {
+                    /* Success. */
+                    *p_contents_beg = contents_beg;
+                    *p_contents_end = contents_end;
+                    *p_end = off+1;
+                    *p_end_line_index = line_index;
+                    return TRUE;
+                } else {
+                    /* Link label must have some non-whitespace contents. */
+                    return FALSE;
+                }
+            } else {
+                int codepoint;
+                SZ char_size;
+
+                codepoint = md_decode_unicode(ctx->text, off, ctx->size, &char_size);
+                if(!ISUNICODEWHITESPACE_(codepoint)) {
+                    if(contents_end == 0) {
+                        contents_beg = off;
+                        *p_beg_line_index = line_index;
+                    }
+                    contents_end = off + char_size;
+                }
+
+                off += char_size;
+            }
+
+            len++;
+            if(len > 999)
+                return FALSE;
+        }
+
+        line_index++;
+        len++;
+        if(line_index < n_lines)
+            off = lines[line_index].beg;
+        else
+            break;
+    }
+
+    return FALSE;
+}
+
+static int
+md_is_link_destination_A(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end,
+                         OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+
+    if(off >= max_end  ||  CH(off) != _T('<'))
+        return FALSE;
+    off++;
+
+    while(off < max_end) {
+        if(CH(off) == _T('\\')  &&  off+1 < max_end  &&  ISPUNCT(off+1)) {
+            off += 2;
+            continue;
+        }
+
+        if(ISWHITESPACE(off)  ||  CH(off) == _T('<'))
+            return FALSE;
+
+        if(CH(off) == _T('>')) {
+            /* Success. */
+            *p_contents_beg = beg+1;
+            *p_contents_end = off;
+            *p_end = off+1;
+            return TRUE;
+        }
+
+        off++;
+    }
+
+    return FALSE;
+}
+
+static int
+md_is_link_destination_B(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end,
+                         OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    int parenthesis_level = 0;
+
+    while(off < max_end) {
+        if(CH(off) == _T('\\')  &&  off+1 < max_end  &&  ISPUNCT(off+1)) {
+            off += 2;
+            continue;
+        }
+
+        if(ISWHITESPACE(off) || ISCNTRL(off))
+            break;
+
+        /* Link destination may include balanced pairs of unescaped '(' ')'.
+         * Note we limit the maximal nesting level by 32 to protect us from
+         * https://github.com/jgm/cmark/issues/214 */
+        if(CH(off) == _T('(')) {
+            parenthesis_level++;
+            if(parenthesis_level > 32)
+                return FALSE;
+        } else if(CH(off) == _T(')')) {
+            if(parenthesis_level == 0)
+                break;
+            parenthesis_level--;
+        }
+
+        off++;
+    }
+
+    if(parenthesis_level != 0  ||  off == beg)
+        return FALSE;
+
+    /* Success. */
+    *p_contents_beg = beg;
+    *p_contents_end = off;
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_link_title(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg,
+                 OFF* p_end, int* p_beg_line_index, int* p_end_line_index,
+                 OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    CHAR closer_char;
+    int line_index = 0;
+
+    /* Optional white space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+
+    *p_beg_line_index = line_index;
+
+    /* First char determines how to detect end of it. */
+    switch(CH(off)) {
+        case _T('"'):   closer_char = _T('"'); break;
+        case _T('\''):  closer_char = _T('\''); break;
+        case _T('('):   closer_char = _T(')'); break;
+        default:        return FALSE;
+    }
+    off++;
+
+    *p_contents_beg = off;
+
+    while(line_index < n_lines) {
+        OFF line_end = lines[line_index].end;
+
+        while(off < line_end) {
+            if(CH(off) == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                off++;
+            } else if(CH(off) == closer_char) {
+                /* Success. */
+                *p_contents_end = off;
+                *p_end = off+1;
+                *p_end_line_index = line_index;
+                return TRUE;
+            }
+
+            off++;
+        }
+
+        line_index++;
+    }
+
+    return FALSE;
+}
+
+/* Returns 0 if it is not a reference definition.
+ *
+ * Returns N > 0 if it is a reference definition. N then corresponds to the
+ * number of lines forming it). In this case the definition is stored for
+ * resolving any links referring to it.
+ *
+ * Returns -1 in case of an error (out of memory).
+ */
+static int
+md_is_link_reference_definition_helper(
+            MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+            int (*is_link_dest_fn)(MD_CTX*, OFF, OFF, OFF*, OFF*, OFF*))
+{
+    OFF label_contents_beg;
+    OFF label_contents_end;
+    int label_contents_line_index = -1;
+    int label_is_multiline;
+    CHAR* label;
+    SZ label_size;
+    int label_needs_free = FALSE;
+    OFF dest_contents_beg;
+    OFF dest_contents_end;
+    OFF title_contents_beg;
+    OFF title_contents_end;
+    int title_contents_line_index;
+    int title_is_multiline;
+    OFF off;
+    int line_index = 0;
+    int tmp_line_index;
+    MD_REF_DEF* def;
+    int ret;
+
+    /* Link label. */
+    if(!md_is_link_label(ctx, lines, n_lines, lines[0].beg,
+                &off, &label_contents_line_index, &line_index,
+                &label_contents_beg, &label_contents_end))
+        return FALSE;
+    label_is_multiline = (label_contents_line_index != line_index);
+
+    /* Colon. */
+    if(off >= lines[line_index].end  ||  CH(off) != _T(':'))
+        return FALSE;
+    off++;
+
+    /* Optional white space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+
+    /* Link destination. */
+    if(!is_link_dest_fn(ctx, off, lines[line_index].end,
+                        &off, &dest_contents_beg, &dest_contents_end))
+        return FALSE;
+
+    /* (Optional) title. Note we interpret it as an title only if nothing
+     * more follows on its last line. */
+    if(md_is_link_title(ctx, lines + line_index, n_lines - line_index, off,
+                &off, &title_contents_line_index, &tmp_line_index,
+                &title_contents_beg, &title_contents_end)
+        &&  off >= lines[line_index + tmp_line_index].end)
+    {
+        title_is_multiline = (tmp_line_index != title_contents_line_index);
+        title_contents_line_index += line_index;
+        line_index += tmp_line_index;
+    } else {
+        /* Not a title. */
+        title_is_multiline = FALSE;
+        title_contents_beg = off;
+        title_contents_end = off;
+        title_contents_line_index = 0;
+    }
+
+    /* Nothing more can follow on the last line. */
+    if(off < lines[line_index].end)
+        return FALSE;
+
+    /* Construct label. */
+    if(!label_is_multiline) {
+        label = (CHAR*) STR(label_contents_beg);
+        label_size = label_contents_end - label_contents_beg;
+        label_needs_free = FALSE;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, label_contents_beg, label_contents_end,
+                    lines + label_contents_line_index, n_lines - label_contents_line_index,
+                    _T(' '), &label, &label_size));
+        label_needs_free = TRUE;
+    }
+
+    /* Store the reference definition. */
+    if(ctx->n_ref_defs >= ctx->alloc_ref_defs) {
+        MD_REF_DEF* new_defs;
+
+        ctx->alloc_ref_defs = (ctx->alloc_ref_defs > 0 ? ctx->alloc_ref_defs * 2 : 16);
+        new_defs = (MD_REF_DEF*) realloc(ctx->ref_defs, ctx->alloc_ref_defs * sizeof(MD_REF_DEF));
+        if(new_defs == NULL) {
+            MD_LOG("realloc() failed.");
+            ret = -1;
+            goto abort;
+        }
+
+        ctx->ref_defs = new_defs;
+    }
+
+    def = &ctx->ref_defs[ctx->n_ref_defs];
+    memset(def, 0, sizeof(MD_REF_DEF));
+
+    def->label = label;
+    def->label_size = label_size;
+    def->label_needs_free = label_needs_free;
+
+    def->dest_beg = dest_contents_beg;
+    def->dest_end = dest_contents_end;
+
+    if(title_contents_beg >= title_contents_end) {
+        def->title = NULL;
+        def->title_size = 0;
+    } else if(!title_is_multiline) {
+        def->title = (CHAR*) STR(title_contents_beg);
+        def->title_size = title_contents_end - title_contents_beg;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, title_contents_beg, title_contents_end,
+                    lines + title_contents_line_index, n_lines - title_contents_line_index,
+                    _T('\n'), &def->title, &def->title_size));
+        def->title_needs_free = TRUE;
+    }
+
+    /* Success. */
+    ctx->n_ref_defs++;
+    return line_index + 1;
+
+abort:
+    /* Failure. */
+    if(label_needs_free)
+        free(label);
+    return -1;
+}
+
+static inline int
+md_is_link_reference_definition(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    int ret;
+    ret = md_is_link_reference_definition_helper(ctx, lines, n_lines, md_is_link_destination_A);
+    if(ret == 0)
+        ret = md_is_link_reference_definition_helper(ctx, lines, n_lines, md_is_link_destination_B);
+    return ret;
+}
+
+static int
+md_is_link_reference(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                     OFF beg, OFF end, MD_LINK_ATTR* attr)
+{
+    const MD_REF_DEF* def;
+    const MD_LINE* beg_line;
+    const MD_LINE* end_line;
+    CHAR* label;
+    SZ label_size;
+    int ret;
+
+    MD_ASSERT(CH(beg) == _T('[') || CH(beg) == _T('!'));
+    MD_ASSERT(CH(end-1) == _T(']'));
+
+    beg += (CH(beg) == _T('!') ? 2 : 1);
+    end--;
+
+    /* Find lines corresponding to the beg and end positions. */
+    MD_ASSERT(lines[0].beg <= beg);
+    beg_line = lines;
+    while(beg >= beg_line->end)
+        beg_line++;
+
+    MD_ASSERT(end <= lines[n_lines-1].end);
+    end_line = beg_line;
+    while(end >= end_line->end)
+        end_line++;
+
+    if(beg_line != end_line) {
+        MD_CHECK(md_merge_lines_alloc(ctx, beg, end, beg_line,
+                 n_lines - (beg_line - lines), _T(' '), &label, &label_size));
+    } else {
+        label = (CHAR*) STR(beg);
+        label_size = end - beg;
+    }
+
+    def = md_lookup_ref_def(ctx, label, label_size);
+    if(def != NULL) {
+        attr->dest_beg = def->dest_beg;
+        attr->dest_end = def->dest_end;
+        attr->title = def->title;
+        attr->title_size = def->title_size;
+        attr->title_needs_free = FALSE;
+    }
+
+    if(beg_line != end_line)
+        free(label);
+
+    ret = (def != NULL);
+
+abort:
+    return ret;
+}
+
+static int
+md_is_inline_link_spec_helper(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                              OFF beg, OFF* p_end, MD_LINK_ATTR* attr,
+                              int (*is_link_dest_fn)(MD_CTX*, OFF, OFF, OFF*, OFF*, OFF*))
+{
+    int line_index = 0;
+    int tmp_line_index;
+    OFF title_contents_beg;
+    OFF title_contents_end;
+    int title_contents_line_index;
+    int title_is_multiline;
+    OFF off = beg;
+    int ret = FALSE;
+
+    while(off >= lines[line_index].end)
+        line_index++;
+
+    MD_ASSERT(CH(off) == _T('('));
+    off++;
+
+    /* Optional white space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end  &&  ISNEWLINE(off)) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+
+    /* Link destination may be omitted, but only when not also having a title. */
+    if(off < ctx->size  &&  CH(off) == _T(')')) {
+        attr->dest_beg = off;
+        attr->dest_end = off;
+        attr->title = NULL;
+        attr->title_size = 0;
+        attr->title_needs_free = FALSE;
+        off++;
+        *p_end = off;
+        return TRUE;
+    }
+
+    /* Link destination. */
+    if(!is_link_dest_fn(ctx, off, lines[line_index].end,
+                        &off, &attr->dest_beg, &attr->dest_end))
+        return FALSE;
+
+    /* (Optional) title. */
+    if(md_is_link_title(ctx, lines + line_index, n_lines - line_index, off,
+                &off, &title_contents_line_index, &tmp_line_index,
+                &title_contents_beg, &title_contents_end))
+    {
+        title_is_multiline = (tmp_line_index != title_contents_line_index);
+        title_contents_line_index += line_index;
+        line_index += tmp_line_index;
+    } else {
+        /* Not a title. */
+        title_is_multiline = FALSE;
+        title_contents_beg = off;
+        title_contents_end = off;
+        title_contents_line_index = 0;
+    }
+
+    /* Optional whitespace followed with final ')'. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end  &&  ISNEWLINE(off)) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+    if(CH(off) != _T(')'))
+        goto abort;
+    off++;
+
+    if(title_contents_beg >= title_contents_end) {
+        attr->title = NULL;
+        attr->title_size = 0;
+        attr->title_needs_free = FALSE;
+    } else if(!title_is_multiline) {
+        attr->title = (CHAR*) STR(title_contents_beg);
+        attr->title_size = title_contents_end - title_contents_beg;
+        attr->title_needs_free = FALSE;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, title_contents_beg, title_contents_end,
+                    lines + title_contents_line_index, n_lines - title_contents_line_index,
+                    _T('\n'), &attr->title, &attr->title_size));
+        attr->title_needs_free = TRUE;
+    }
+
+    *p_end = off;
+    ret = TRUE;
+
+abort:
+    return ret;
+}
+
+static inline int
+md_is_inline_link_spec(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                       OFF beg, OFF* p_end, MD_LINK_ATTR* attr)
+{
+    return md_is_inline_link_spec_helper(ctx, lines, n_lines, beg, p_end, attr, md_is_link_destination_A) ||
+           md_is_inline_link_spec_helper(ctx, lines, n_lines, beg, p_end, attr, md_is_link_destination_B);
+}
+
+static void
+md_free_ref_defs(MD_CTX* ctx)
+{
+    int i;
+
+    for(i = 0; i < ctx->n_ref_defs; i++) {
+        MD_REF_DEF* def = &ctx->ref_defs[i];
+
+        if(def->label_needs_free)
+            free(def->label);
+        if(def->title_needs_free)
+            free(def->title);
+    }
+
+    free(ctx->ref_defs);
+}
+
+
+/******************************************
+ ***  Processing Inlines (a.k.a Spans)  ***
+ ******************************************/
+
+/* We process inlines in few phases:
+ *
+ * (1) We go through the block text and collect all significant characters
+ *     which may start/end a span or some other significant position into
+ *     ctx->marks[]. Core of this is what md_collect_marks() does.
+ *
+ *     We also do some very brief preliminary context-less analysis, whether
+ *     it might be opener or closer (e.g. of an emphasis span).
+ *
+ *     This speeds the other steps as we do not need to re-iterate over all
+ *     characters anymore.
+ *
+ * (2) We analyze each potential mark types, in order by their precedence.
+ *
+ *     In each md_analyze_XXX() function, we re-iterate list of the marks,
+ *     skipping already resolved regions (in preceding precedences) and try to
+ *     resolve them.
+ *
+ * (2.1) For trivial marks, which are single (e.g. HTML entity), we just mark
+ *       them as resolved.
+ *
+ * (2.2) For range-type marks, we analyze whether the mark could be closer
+ *       and, if yes, whether there is some preceding opener it could satisfy.
+ *
+ *       If not we check whether it could be really an opener and if yes, we
+ *       remember it so subsequent closers may resolve it.
+ *
+ * (3) Finally, when all marks were analyzed, we render the block contents
+ *     by calling MD_RENDERER::text() callback, interrupting by ::enter_span()
+ *     or ::close_span() whenever we reach a resolved mark.
+ */
+
+
+/* The mark structure.
+ *
+ * '\\': Maybe escape sequence.
+ * '\0': NULL char.
+ *  '*': Maybe (strong) emphasis start/end.
+ *  '_': Maybe (strong) emphasis start/end.
+ *  '~': Maybe strikethrough start/end (needs MD_FLAG_STRIKETHROUGH).
+ *  '`': Maybe code span start/end.
+ *  '&': Maybe start of entity.
+ *  ';': Maybe end of entity.
+ *  '<': Maybe start of raw HTML or autolink.
+ *  '>': Maybe end of raw HTML or autolink.
+ *  '[': Maybe start of link label or link text.
+ *  '!': Equivalent of '[' for image.
+ *  ']': Maybe end of link label or link text.
+ *  '@': Maybe permissive e-mail auto-link (needs MD_FLAG_PERMISSIVEEMAILAUTOLINKS).
+ *  ':': Maybe permissive URL auto-link (needs MD_FLAG_PERMISSIVEURLAUTOLINKS).
+ *  '.': Maybe permissive WWW auto-link (needs MD_FLAG_PERMISSIVEWWWAUTOLINKS).
+ *  'D': Dummy mark, it reserves a space for splitting a previous mark
+ *       (e.g. emphasis) or to make more space for storing some special data
+ *       related to the preceding mark (e.g. link).
+ *
+ * Note that not all instances of these chars in the text imply creation of the
+ * structure. Only those which have (or may have, after we see more context)
+ * the special meaning.
+ *
+ * (Keep this struct as small as possible to fit as much of them into CPU
+ * cache line.)
+ */
+struct MD_MARK_tag {
+    OFF beg;
+    OFF end;
+
+    /* For unresolved openers, 'prev' and 'next' form the chain of open openers
+     * of given type 'ch'.
+     *
+     * During resolving, we disconnect from the chain and point to the
+     * corresponding counterpart so opener points to its closer and vice versa.
+     */
+    int prev;
+    int next;
+    CHAR ch;
+    unsigned char flags;
+};
+
+/* Mark flags (these apply to ALL mark types). */
+#define MD_MARK_POTENTIAL_OPENER            0x01  /* Maybe opener. */
+#define MD_MARK_POTENTIAL_CLOSER            0x02  /* Maybe closer. */
+#define MD_MARK_OPENER                      0x04  /* Definitely opener. */
+#define MD_MARK_CLOSER                      0x08  /* Definitely closer. */
+#define MD_MARK_RESOLVED                    0x10  /* Resolved in any definite way. */
+
+/* Mark flags specific for various mark types (so they can share bits). */
+#define MD_MARK_EMPH_INTRAWORD              0x20  /* Helper for the "rule of 3". */
+#define MD_MARK_EMPH_MODULO3_0              0x40
+#define MD_MARK_EMPH_MODULO3_1              0x80
+#define MD_MARK_EMPH_MODULO3_2              (0x40 | 0x80)
+#define MD_MARK_EMPH_MODULO3_MASK           (0x40 | 0x80)
+#define MD_MARK_AUTOLINK                    0x20  /* Distinguisher for '<', '>'. */
+#define MD_MARK_VALIDPERMISSIVEAUTOLINK     0x20  /* For permissive autolinks. */
+
+
+static MD_MARK*
+md_push_mark(MD_CTX* ctx)
+{
+    if(ctx->n_marks >= ctx->alloc_marks) {
+        MD_MARK* new_marks;
+
+        ctx->alloc_marks = (ctx->alloc_marks > 0 ? ctx->alloc_marks * 2 : 64);
+        new_marks = realloc(ctx->marks, ctx->alloc_marks * sizeof(MD_MARK));
+        if(new_marks == NULL) {
+            MD_LOG("realloc() failed.");
+            return NULL;
+        }
+
+        ctx->marks = new_marks;
+    }
+
+    return &ctx->marks[ctx->n_marks++];
+}
+
+#define PUSH_MARK_()                                                    \
+        do {                                                            \
+            mark = md_push_mark(ctx);                                   \
+            if(mark == NULL) {                                          \
+                ret = -1;                                               \
+                goto abort;                                             \
+            }                                                           \
+        } while(0)
+
+#define PUSH_MARK(ch_, beg_, end_, flags_)                              \
+        do {                                                            \
+            PUSH_MARK_();                                               \
+            mark->beg = (beg_);                                         \
+            mark->end = (end_);                                         \
+            mark->prev = -1;                                            \
+            mark->next = -1;                                            \
+            mark->ch = (char)(ch_);                                     \
+            mark->flags = (flags_);                                     \
+        } while(0)
+
+
+static void
+md_mark_chain_append(MD_CTX* ctx, MD_MARKCHAIN* chain, int mark_index)
+{
+    if(chain->tail >= 0)
+        ctx->marks[chain->tail].next = mark_index;
+    else
+        chain->head = mark_index;
+
+    ctx->marks[mark_index].prev = chain->tail;
+    chain->tail = mark_index;
+}
+
+/* Sometimes, we need to store a pointer into the mark. It is quite rare
+ * so we do not bother to make MD_MARK use union, and it can only happen
+ * for dummy marks. */
+static inline void
+md_mark_store_ptr(MD_CTX* ctx, int mark_index, void* ptr)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    MD_ASSERT(mark->ch == 'D');
+
+    /* Check only members beg and end are misused for this. */
+    MD_ASSERT(sizeof(void*) <= 2 * sizeof(OFF));
+    memcpy(mark, &ptr, sizeof(void*));
+}
+
+static inline void*
+md_mark_get_ptr(MD_CTX* ctx, int mark_index)
+{
+    void* ptr;
+    MD_MARK* mark = &ctx->marks[mark_index];
+    MD_ASSERT(mark->ch == 'D');
+    memcpy(&ptr, mark, sizeof(void*));
+    return ptr;
+}
+
+static void
+md_resolve_range(MD_CTX* ctx, MD_MARKCHAIN* chain, int opener_index, int closer_index)
+{
+    MD_MARK* opener = &ctx->marks[opener_index];
+    MD_MARK* closer = &ctx->marks[closer_index];
+
+    /* Remove opener from the list of openers. */
+    if(chain != NULL) {
+        if(opener->prev >= 0)
+            ctx->marks[opener->prev].next = opener->next;
+        else
+            chain->head = opener->next;
+
+        if(opener->next >= 0)
+            ctx->marks[opener->next].prev = opener->prev;
+        else
+            chain->tail = opener->prev;
+    }
+
+    /* Interconnect opener and closer and mark both as resolved. */
+    opener->next = closer_index;
+    opener->flags |= MD_MARK_OPENER | MD_MARK_RESOLVED;
+    closer->prev = opener_index;
+    closer->flags |= MD_MARK_CLOSER | MD_MARK_RESOLVED;
+}
+
+
+#define MD_ROLLBACK_ALL         0
+#define MD_ROLLBACK_CROSSING    1
+
+/* In the range ctx->marks[opener_index] ... [closer_index], undo some or all
+ * resolvings accordingly to these rules:
+ *
+ * (1) All openers BEFORE the range corresponding to any closer inside the
+ *     range are un-resolved and they are re-added to their respective chains
+ *     of unresolved openers. This ensures we can reuse the opener for closers
+ *     AFTER the range.
+ *
+ * (2) If 'how' is MD_ROLLBACK_ALL, then ALL resolved marks inside the range
+ *     are discarded.
+ *
+ * (3) If 'how' is MD_ROLLBACK_CROSSING, only closers with openers handled
+ *     in (1) are discarded. I.e. pairs of openers and closers which are both
+ *     inside the range are retained as well as any unpaired marks.
+ */
+static void
+md_rollback(MD_CTX* ctx, int opener_index, int closer_index, int how)
+{
+    int i;
+    int mark_index;
+
+    /* Cut all unresolved openers at the mark index. */
+    for(i = OPENERS_CHAIN_FIRST; i < OPENERS_CHAIN_LAST+1; i++) {
+        MD_MARKCHAIN* chain = &ctx->mark_chains[i];
+
+        while(chain->tail >= opener_index)
+            chain->tail = ctx->marks[chain->tail].prev;
+
+        if(chain->tail >= 0)
+            ctx->marks[chain->tail].next = -1;
+        else
+            chain->head = -1;
+    }
+
+    /* Go backwards so that un-resolved openers are re-added into their
+     * respective chains, in the right order. */
+    mark_index = closer_index - 1;
+    while(mark_index > opener_index) {
+        MD_MARK* mark = &ctx->marks[mark_index];
+        int mark_flags = mark->flags;
+        int discard_flag = (how == MD_ROLLBACK_ALL);
+
+        if(mark->flags & MD_MARK_CLOSER) {
+            int mark_opener_index = mark->prev;
+
+            /* Undo opener BEFORE the range. */
+            if(mark_opener_index < opener_index) {
+                MD_MARK* mark_opener = &ctx->marks[mark_opener_index];
+                MD_MARKCHAIN* chain;
+
+                mark_opener->flags &= ~(MD_MARK_OPENER | MD_MARK_CLOSER | MD_MARK_RESOLVED);
+
+                switch(mark_opener->ch) {
+                    case '*':   chain = &ASTERISK_OPENERS; break;
+                    case '_':   chain = &UNDERSCORE_OPENERS; break;
+                    case '`':   chain = &BACKTICK_OPENERS; break;
+                    case '<':   chain = &LOWERTHEN_OPENERS; break;
+                    case '~':   chain = &TILDE_OPENERS; break;
+                    default:    MD_UNREACHABLE(); break;
+                }
+                md_mark_chain_append(ctx, chain, mark_opener_index);
+
+                discard_flag = 1;
+            }
+        }
+
+        /* And reset our flags. */
+        if(discard_flag)
+            mark->flags &= ~(MD_MARK_OPENER | MD_MARK_CLOSER | MD_MARK_RESOLVED);
+
+        /* Jump as far as we can over unresolved or non-interesting marks. */
+        switch(how) {
+            case MD_ROLLBACK_CROSSING:
+                if((mark_flags & MD_MARK_CLOSER)  &&  mark->prev > opener_index) {
+                    /* If we are closer with opener INSIDE the range, there may
+                     * not be any other crosser inside the subrange. */
+                    mark_index = mark->prev;
+                    break;
+                }
+                /* Pass through. */
+            default:
+                mark_index--;
+                break;
+        }
+    }
+}
+
+static void
+md_build_mark_char_map(MD_CTX* ctx)
+{
+    memset(ctx->mark_char_map, 0, sizeof(ctx->mark_char_map));
+
+    ctx->mark_char_map['\\'] = 1;
+    ctx->mark_char_map['*'] = 1;
+    ctx->mark_char_map['_'] = 1;
+    ctx->mark_char_map['`'] = 1;
+    ctx->mark_char_map['&'] = 1;
+    ctx->mark_char_map[';'] = 1;
+    ctx->mark_char_map['<'] = 1;
+    ctx->mark_char_map['>'] = 1;
+    ctx->mark_char_map['['] = 1;
+    ctx->mark_char_map['!'] = 1;
+    ctx->mark_char_map[']'] = 1;
+    ctx->mark_char_map['\0'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_STRIKETHROUGH)
+        ctx->mark_char_map['~'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEEMAILAUTOLINKS)
+        ctx->mark_char_map['@'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEURLAUTOLINKS)
+        ctx->mark_char_map[':'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEWWWAUTOLINKS)
+        ctx->mark_char_map['.'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_TABLES)
+        ctx->mark_char_map['|'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_COLLAPSEWHITESPACE) {
+        int i;
+
+        for(i = 0; i < sizeof(ctx->mark_char_map); i++) {
+            if(ISWHITESPACE_(i))
+                ctx->mark_char_map[i] = 1;
+        }
+    }
+}
+
+static int
+md_collect_marks(MD_CTX* ctx, const MD_LINE* lines, int n_lines, int table_mode)
+{
+    int i;
+    int ret = 0;
+    MD_MARK* mark;
+
+    for(i = 0; i < n_lines; i++) {
+        const MD_LINE* line = &lines[i];
+        OFF off = line->beg;
+        OFF line_end = line->end;
+
+        while(TRUE) {
+            CHAR ch;
+
+#ifdef MD4C_USE_UTF16
+    /* For UTF-16, mark_char_map[] covers only ASCII. */
+    #define IS_MARK_CHAR(off)   ((CH(off) < SIZEOF_ARRAY(ctx->mark_char_map))  &&  \
+                                (ctx->mark_char_map[(unsigned char) CH(off)]))
+#else
+    /* For 8-bit encodings, mark_char_map[] covers all 256 elements. */
+    #define IS_MARK_CHAR(off)   (ctx->mark_char_map[(unsigned char) CH(off)])
+#endif
+
+            /* Optimization: Fast path (with some loop unrolling). */
+            while(off + 4 < line_end  &&  !IS_MARK_CHAR(off+0)  &&  !IS_MARK_CHAR(off+1)
+                                      &&  !IS_MARK_CHAR(off+2)  &&  !IS_MARK_CHAR(off+3))
+                off += 4;
+            while(off < line_end  &&  !IS_MARK_CHAR(off+0))
+                off++;
+
+            if(off >= line_end)
+                break;
+
+            ch = CH(off);
+
+            /* A backslash escape.
+             * It can go beyond line->end as it may involve escaped new
+             * line to form a hard break. */
+            if(ch == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                /* Hard-break cannot be on the last line of the block. */
+                if(!ISNEWLINE(off+1)  ||  i+1 < n_lines)
+                    PUSH_MARK(ch, off, off+2, MD_MARK_RESOLVED);
+
+                /* If '`' or '>' follows, we need both marks as the backslash
+                 * may be inside a code span or an autolink where escaping is
+                 * disabled. */
+                if(CH(off+1) == _T('`') || CH(off+1) == _T('>'))
+                    off++;
+                else
+                    off += 2;
+                continue;
+            }
+
+            /* A potential (string) emphasis start/end. */
+            if(ch == _T('*')  ||  ch == _T('_')) {
+                OFF tmp = off+1;
+                int left_level;     /* What precedes: 0 = whitespace; 1 = punctuation; 2 = other char. */
+                int right_level;    /* What follows: 0 = whitespace; 1 = punctuation; 2 = other char. */
+
+                while(tmp < line_end  &&  CH(tmp) == ch)
+                    tmp++;
+
+                if(off == line->beg  ||  ISUNICODEWHITESPACEBEFORE(off))
+                    left_level = 0;
+                else if(ISUNICODEPUNCTBEFORE(off))
+                    left_level = 1;
+                else
+                    left_level = 2;
+
+                if(tmp == line_end  ||  ISUNICODEWHITESPACE(tmp))
+                    right_level = 0;
+                else if(ISUNICODEPUNCT(tmp))
+                    right_level = 1;
+                else
+                    right_level = 2;
+
+                /* Intra-word underscore doesn't have special meaning. */
+                if(ch == _T('_')  &&  left_level == 2  &&  right_level == 2) {
+                    left_level = 0;
+                    right_level = 0;
+                }
+
+                if(left_level != 0  ||  right_level != 0) {
+                    unsigned flags = 0;
+
+                    if(left_level > 0  &&  left_level >= right_level)
+                        flags |= MD_MARK_POTENTIAL_CLOSER;
+                    if(right_level > 0  &&  right_level >= left_level)
+                        flags |= MD_MARK_POTENTIAL_OPENER;
+                    if(left_level == 2  &&  right_level == 2)
+                        flags |= MD_MARK_EMPH_INTRAWORD;
+
+                    /* For "the rule of three" we need to remember the original
+                     * size of the mark (modulo three), before we potentially
+                     * split the mark when being later resolved partially by some
+                     * shorter closer. */
+                    switch((tmp - off) % 3) {
+                        case 0: flags |= MD_MARK_EMPH_MODULO3_0; break;
+                        case 1: flags |= MD_MARK_EMPH_MODULO3_1; break;
+                        case 2: flags |= MD_MARK_EMPH_MODULO3_2; break;
+                    }
+
+                    PUSH_MARK(ch, off, tmp, flags);
+
+                    /* During resolving, multiple asterisks may have to be
+                     * split into independent span start/ends. Consider e.g.
+                     * "**foo* bar*". Therefore we push also some empty dummy
+                     * marks to have enough space for that. */
+                    off++;
+                    while(off < tmp) {
+                        PUSH_MARK('D', off, off, 0);
+                        off++;
+                    }
+                    continue;
+                }
+
+                off = tmp;
+                continue;
+            }
+
+            /* A potential code span start/end. */
+            if(ch == _T('`')) {
+                OFF tmp = off+1;
+
+                while(tmp < line_end  &&  CH(tmp) == _T('`'))
+                    tmp++;
+
+                /* We limit code span marks to lower then 256 backticks. This
+                 * solves a pathologic case of too many openers, each of
+                 * different length: Their resolving is then O(n^2). */
+                if(tmp - off < 256)
+                    PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER | MD_MARK_POTENTIAL_CLOSER);
+
+                off = tmp;
+                continue;
+            }
+
+            /* A potential entity start. */
+            if(ch == _T('&')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_OPENER);
+                off++;
+                continue;
+            }
+
+            /* A potential entity end. */
+            if(ch == _T(';')) {
+                /* We surely cannot be entity unless the previous mark is '&'. */
+                if(ctx->n_marks > 0  &&  ctx->marks[ctx->n_marks-1].ch == _T('&'))
+                    PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_CLOSER);
+
+                off++;
+                continue;
+            }
+
+            /* A potential autolink or raw HTML start/end. */
+            if(ch == _T('<') || ch == _T('>')) {
+                if(!(ctx->parser.flags & MD_FLAG_NOHTMLSPANS))
+                    PUSH_MARK(ch, off, off+1, (ch == _T('<') ? MD_MARK_POTENTIAL_OPENER : MD_MARK_POTENTIAL_CLOSER));
+
+                off++;
+                continue;
+            }
+
+            /* A potential link or its part. */
+            if(ch == _T('[')  ||  (ch == _T('!') && off+1 < line_end && CH(off+1) == _T('['))) {
+                OFF tmp = (ch == _T('[') ? off+1 : off+2);
+                PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER);
+                off = tmp;
+                /* Two dummies to make enough place for data we need if it is
+                 * a link. */
+                PUSH_MARK('D', off, off, 0);
+                PUSH_MARK('D', off, off, 0);
+                continue;
+            }
+            if(ch == _T(']')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_CLOSER);
+                off++;
+                continue;
+            }
+
+            /* A potential permissive e-mail autolink. */
+            if(ch == _T('@')) {
+                if(line->beg + 1 <= off  &&  ISALNUM(off-1)  &&
+                    off + 3 < line->end  &&  ISALNUM(off+1))
+                {
+                    PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_OPENER);
+                    /* Push a dummy as a reserve for a closer. */
+                    PUSH_MARK('D', off, off, 0);
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential permissive URL autolink. */
+            if(ch == _T(':')) {
+                static struct {
+                    const CHAR* scheme;
+                    SZ scheme_size;
+                    const CHAR* suffix;
+                    SZ suffix_size;
+                } scheme_map[] = {
+                    /* In the order from the most frequently used, arguably. */
+                    { _T("http"), 4,    _T("//"), 2 },
+                    { _T("https"), 5,   _T("//"), 2 },
+                    { _T("ftp"), 3,     _T("//"), 2 }
+                };
+                int scheme_index;
+
+                for(scheme_index = 0; scheme_index < SIZEOF_ARRAY(scheme_map); scheme_index++) {
+                    const CHAR* scheme = scheme_map[scheme_index].scheme;
+                    const SZ scheme_size = scheme_map[scheme_index].scheme_size;
+                    const CHAR* suffix = scheme_map[scheme_index].suffix;
+                    const SZ suffix_size = scheme_map[scheme_index].suffix_size;
+
+                    if(line->beg + scheme_size <= off  &&  md_ascii_eq(STR(off-scheme_size), scheme, scheme_size)  &&
+                        (line->beg + scheme_size == off || ISWHITESPACE(off-scheme_size-1) || ISANYOF(off-scheme_size-1, _T("*_~([")))  &&
+                        off + 1 + suffix_size < line->end  &&  md_ascii_eq(STR(off+1), suffix, suffix_size))
+                    {
+                        PUSH_MARK(ch, off-scheme_size, off+1+suffix_size, MD_MARK_POTENTIAL_OPENER);
+                        /* Push a dummy as a reserve for a closer. */
+                        PUSH_MARK('D', off, off, 0);
+                        off += 1 + suffix_size;
+                        continue;
+                    }
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential permissive WWW autolink. */
+            if(ch == _T('.')) {
+                if(line->beg + 3 <= off  &&  md_ascii_eq(STR(off-3), _T("www"), 3)  &&
+                    (line->beg + 3 == off || ISWHITESPACE(off-4) || ISANYOF(off-4, _T("*_~([")))  &&
+                    off + 1 < line_end)
+                {
+                    PUSH_MARK(ch, off-3, off+1, MD_MARK_POTENTIAL_OPENER);
+                    /* Push a dummy as a reserve for a closer. */
+                    PUSH_MARK('D', off, off, 0);
+                    off++;
+                    continue;
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential table cell boundary. */
+            if(table_mode  &&  ch == _T('|')) {
+                PUSH_MARK(ch, off, off+1, 0);
+                off++;
+                continue;
+            }
+
+            /* A potential strikethrough start/end. */
+            if(ch == _T('~')) {
+                OFF tmp = off+1;
+
+                while(tmp < line_end  &&  CH(tmp) == _T('~'))
+                    tmp++;
+
+                PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER | MD_MARK_POTENTIAL_CLOSER);
+                off = tmp;
+            }
+
+            /* Turn non-trivial whitespace into single space. */
+            if(ISWHITESPACE_(ch)) {
+                OFF tmp = off+1;
+
+                while(tmp < line_end  &&  ISWHITESPACE(tmp))
+                    tmp++;
+
+                if(tmp - off > 1  ||  ch != _T(' '))
+                    PUSH_MARK(ch, off, tmp, MD_MARK_RESOLVED);
+
+                off = tmp;
+                continue;
+            }
+
+            /* NULL character. */
+            if(ch == _T('\0')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_RESOLVED);
+                off++;
+                continue;
+            }
+
+            off++;
+        }
+    }
+
+    /* Add a dummy mark at the end of the mark vector to simplify
+     * process_inlines(). */
+    PUSH_MARK(127, ctx->size, ctx->size, MD_MARK_RESOLVED);
+
+abort:
+    return ret;
+}
+
+
+/* Analyze whether the back-tick is really start/end mark of a code span.
+ * If yes, reset all marks inside of it and setup flags of both marks. */
+static void
+md_analyze_backtick(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    int opener_index = BACKTICK_OPENERS.tail;
+
+    /* Try to find unresolved opener of the same length. If we find it,
+     * we form a code span. */
+    while(opener_index >= 0) {
+        MD_MARK* opener = &ctx->marks[opener_index];
+
+        if(opener->end - opener->beg == mark->end - mark->beg) {
+            /* Rollback anything found inside it.
+             * (e.g. the code span contains some back-ticks or other special
+             * chars we misinterpreted.) */
+            md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_ALL);
+
+            /* Resolve the span. */
+            md_resolve_range(ctx, &BACKTICK_OPENERS, opener_index, mark_index);
+
+            /* Append any space or new line inside the span into the mark
+             * itself to swallow it. */
+            while(CH(opener->end) == _T(' ')  ||  ISNEWLINE(opener->end))
+                opener->end++;
+            if(mark->beg > opener->end) {
+                while(CH(mark->beg-1) == _T(' ')  ||  ISNEWLINE(mark->beg-1))
+                    mark->beg--;
+            }
+
+            /* Done. */
+            return;
+        }
+
+        opener_index = ctx->marks[opener_index].prev;
+    }
+
+    /* We didn't find any matching opener, so we ourselves may be the opener
+     * of some upcoming closer. We also have to handle specially if there is
+     * a backslash mark before it as that can cancel the first backtick. */
+    if(mark_index > 0  &&  (mark-1)->beg == mark->beg - 1  &&  (mark-1)->ch == '\\') {
+        if(mark->end - mark->beg == 1) {
+            /* Single escaped backtick. */
+            return;
+        }
+
+        /* Remove the escaped backtick from the opener. */
+        mark->beg++;
+    }
+
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER)
+        md_mark_chain_append(ctx, &BACKTICK_OPENERS, mark_index);
+}
+
+static int
+md_is_autolink_uri(MD_CTX* ctx, OFF beg, OFF end)
+{
+    OFF off = beg;
+
+    /* Check for scheme. */
+    if(off >= end  ||  !ISASCII(off))
+        return FALSE;
+    off++;
+    while(1) {
+        if(off >= end)
+            return FALSE;
+        if(off - beg > 32)
+            return FALSE;
+        if(CH(off) == _T(':')  &&  off - beg >= 2)
+            break;
+        if(!ISALNUM(off) && CH(off) != _T('+') && CH(off) != _T('-') && CH(off) != _T('.'))
+            return FALSE;
+        off++;
+    }
+
+    /* Check the path after the scheme. */
+    while(off < end) {
+        if(ISWHITESPACE(off) || ISCNTRL(off) || CH(off) == _T('<') || CH(off) == _T('>'))
+            return FALSE;
+        off++;
+    }
+
+    return TRUE;
+}
+
+static int
+md_is_autolink_email(MD_CTX* ctx, OFF beg, OFF end)
+{
+    OFF off = beg;
+    int label_len;
+
+    /* The code should correspond to this regexp:
+            /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+
+            @[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?
+            (?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
+     */
+
+    /* Username (before '@'). */
+    while(off < end  &&  (ISALNUM(off) || ISANYOF(off, _T(".!#$%&'*+/=?^_`{|}~-"))))
+        off++;
+    if(off <= beg)
+        return FALSE;
+
+    /* '@' */
+    if(off >= end  ||  CH(off) != _T('@'))
+        return FALSE;
+    off++;
+
+    /* Labels delimited with '.'; each label is sequence of 1 - 62 alnum
+     * characters or '-', but '-' is not allowed as first or last char. */
+    label_len = 0;
+    while(off < end) {
+        if(ISALNUM(off))
+            label_len++;
+        else if(CH(off) == _T('-')  &&  label_len > 0)
+            label_len++;
+        else if(CH(off) == _T('.')  &&  label_len > 0  &&  CH(off-1) != _T('-'))
+            label_len = 0;
+        else
+            return FALSE;
+
+        if(label_len > 63)
+            return FALSE;
+
+        off++;
+    }
+
+    if(label_len <= 0  ||  CH(off-1) == _T('-'))
+        return FALSE;
+
+    return TRUE;
+}
+
+static int
+md_is_autolink(MD_CTX* ctx, OFF beg, OFF end, int* p_missing_mailto)
+{
+    MD_ASSERT(CH(beg) == _T('<'));
+    MD_ASSERT(CH(end-1) == _T('>'));
+
+    beg++;
+    end--;
+
+    if(md_is_autolink_uri(ctx, beg, end))
+        return TRUE;
+
+    if(md_is_autolink_email(ctx, beg, end)) {
+        *p_missing_mailto = 1;
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static void
+md_analyze_lt_gt(MD_CTX* ctx, int mark_index, const MD_LINE* lines, int n_lines)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    int opener_index;
+
+    /* If it is an opener ('<'), remember it. */
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER) {
+        md_mark_chain_append(ctx, &LOWERTHEN_OPENERS, mark_index);
+        return;
+    }
+
+    /* Otherwise we are potential closer and we try to resolve with since all
+     * the chained unresolved openers. */
+    opener_index = LOWERTHEN_OPENERS.head;
+    while(opener_index >= 0) {
+        MD_MARK* opener = &ctx->marks[opener_index];
+        OFF detected_end;
+        int is_autolink = 0;
+        int is_missing_mailto = 0;
+        int is_raw_html = 0;
+
+        is_autolink = (md_is_autolink(ctx, opener->beg, mark->end, &is_missing_mailto));
+
+        if(is_autolink) {
+            if(is_missing_mailto)
+                opener->ch = _T('@');
+        } else {
+            /* Identify the line where the opening mark lives. */
+            int line_index = 0;
+            while(1) {
+                if(opener->beg < lines[line_index].end)
+                    break;
+                line_index++;
+            }
+
+            is_raw_html = (md_is_html_any(ctx, lines + line_index,
+                    n_lines - line_index, opener->beg, mark->end, &detected_end));
+        }
+
+        /* Check whether the range forms a valid raw HTML. */
+        if(is_autolink || is_raw_html) {
+            md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_ALL);
+            md_resolve_range(ctx, &LOWERTHEN_OPENERS, opener_index, mark_index);
+
+            if(is_raw_html) {
+                /* If this fails, it means we have missed some earlier opportunity
+                 * to resolve the opener of raw HTML. */
+                MD_ASSERT(detected_end == mark->end);
+
+                /* Make these marks zero width so the '<' and '>' are part of its
+                 * contents. */
+                opener->end = opener->beg;
+                mark->beg = mark->end;
+
+                opener->flags &= ~MD_MARK_AUTOLINK;
+                mark->flags &= ~MD_MARK_AUTOLINK;
+            } else {
+                opener->flags |= MD_MARK_AUTOLINK;
+                mark->flags |= MD_MARK_AUTOLINK;
+            }
+
+            /* And we are done. */
+            return;
+        }
+
+        opener_index = opener->next;
+    }
+}
+
+static void
+md_analyze_bracket(MD_CTX* ctx, int mark_index)
+{
+    /* We cannot really resolve links here as for that we would need
+     * more context. E.g. a following pair of brackets (reference link),
+     * or enclosing pair of brackets (if the inner is the link, the outer
+     * one cannot be.)
+     *
+     * Therefore we here only construct a list of resolved '[' ']' pairs
+     * ordered by position of the closer. This allows ur to analyze what is
+     * or is not link in the right order, from inside to outside in case
+     * of nested brackets.
+     *
+     * The resolving itself is deferred into md_resolve_links().
+     */
+
+    MD_MARK* mark = &ctx->marks[mark_index];
+
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER) {
+        md_mark_chain_append(ctx, &BRACKET_OPENERS, mark_index);
+        return;
+    }
+
+    if(BRACKET_OPENERS.tail >= 0) {
+        /* Pop the opener from the chain. */
+        int opener_index = BRACKET_OPENERS.tail;
+        MD_MARK* opener = &ctx->marks[opener_index];
+        if(opener->prev >= 0)
+            ctx->marks[opener->prev].next = -1;
+        else
+            BRACKET_OPENERS.head = -1;
+        BRACKET_OPENERS.tail = opener->prev;
+
+        /* Interconnect the opener and closer. */
+        opener->next = mark_index;
+        mark->prev = opener_index;
+
+        /* Add the pair into chain of potential links for md_resolve_links().
+         * Note we misuse opener->prev for this as opener->next points to its
+         * closer. */
+        if(ctx->unresolved_link_tail >= 0)
+            ctx->marks[ctx->unresolved_link_tail].prev = opener_index;
+        else
+            ctx->unresolved_link_head = opener_index;
+        ctx->unresolved_link_tail = opener_index;
+        opener->prev = -1;
+    }
+}
+
+/* Forward declaration. */
+static void md_analyze_link_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                                     int mark_beg, int mark_end);
+
+static int
+md_resolve_links(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    int opener_index = ctx->unresolved_link_head;
+    OFF last_link_beg = 0;
+    OFF last_link_end = 0;
+    OFF last_img_beg = 0;
+    OFF last_img_end = 0;
+
+    while(opener_index >= 0) {
+        MD_MARK* opener = &ctx->marks[opener_index];
+        int closer_index = opener->next;
+        MD_MARK* closer = &ctx->marks[closer_index];
+        int next_index = opener->prev;
+        MD_MARK* next_opener;
+        MD_MARK* next_closer;
+        MD_LINK_ATTR attr;
+        int is_link = FALSE;
+
+        if(next_index >= 0) {
+            next_opener = &ctx->marks[next_index];
+            next_closer = &ctx->marks[next_opener->next];
+        } else {
+            next_opener = NULL;
+            next_closer = NULL;
+        }
+
+        /* If nested ("[ [ ] ]"), we need to make sure that:
+         *   - The outer does not end inside of (...) belonging to the inner.
+         *   - The outer cannot be link if the inner is link (i.e. not image).
+         *
+         * (Note we here analyze from inner to outer as the marks are ordered
+         * by closer->beg.)
+         */
+        if((opener->beg < last_link_beg  &&  closer->end < last_link_end)  ||
+           (opener->beg < last_img_beg  &&  closer->end < last_img_end)  ||
+           (opener->beg < last_link_end  &&  opener->ch == '['))
+        {
+            opener_index = next_index;
+            continue;
+        }
+
+        if(next_opener != NULL  &&  next_opener->beg == closer->end) {
+            if(next_closer->beg > closer->end + 1) {
+                /* Might be full reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, next_opener->beg, next_closer->end, &attr);
+            } else {
+                /* Might be shortcut reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, opener->beg, closer->end, &attr);
+            }
+
+            if(is_link < 0)
+                return -1;
+
+            if(is_link) {
+                /* Eat the 2nd "[...]". */
+                closer->end = next_closer->end;
+            }
+        } else {
+            if(closer->end < ctx->size  &&  CH(closer->end) == _T('(')) {
+                /* Might be inline link. */
+                OFF inline_link_end = UINT_MAX;
+
+                is_link = md_is_inline_link_spec(ctx, lines, n_lines, closer->end, &inline_link_end, &attr);
+                if(is_link < 0)
+                    return -1;
+
+                /* Check the closing ')' is not inside an already resolved range
+                 * (i.e. a range with a higher priority), e.g. a code span. */
+                if(is_link) {
+                    int i = closer_index + 1;
+
+                    while(i < ctx->n_marks) {
+                        MD_MARK* mark = &ctx->marks[i];
+
+                        if(mark->beg >= inline_link_end)
+                            break;
+                        if((mark->flags & (MD_MARK_OPENER | MD_MARK_RESOLVED)) == (MD_MARK_OPENER | MD_MARK_RESOLVED)) {
+                            if(ctx->marks[mark->next].beg >= inline_link_end) {
+                                /* Cancel the link status. */
+                                if(attr.title_needs_free)
+                                    free(attr.title);
+                                is_link = FALSE;
+                                break;
+                            }
+
+                            i = mark->next + 1;
+                        } else {
+                            i++;
+                        }
+                    }
+                }
+
+                if(is_link) {
+                    /* Eat the "(...)" */
+                    closer->end = inline_link_end;
+                }
+            }
+
+            if(!is_link) {
+                /* Might be collapsed reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, opener->beg, closer->end, &attr);
+                if(is_link < 0)
+                    return -1;
+            }
+        }
+
+        if(is_link) {
+            /* Resolve the brackets as a link. */
+            opener->flags |= MD_MARK_OPENER | MD_MARK_RESOLVED;
+            closer->flags |= MD_MARK_CLOSER | MD_MARK_RESOLVED;
+
+            /* If it is a link, we store the destination and title in the two
+             * dummy marks after the opener. */
+            MD_ASSERT(ctx->marks[opener_index+1].ch == 'D');
+            ctx->marks[opener_index+1].beg = attr.dest_beg;
+            ctx->marks[opener_index+1].end = attr.dest_end;
+
+            MD_ASSERT(ctx->marks[opener_index+2].ch == 'D');
+            md_mark_store_ptr(ctx, opener_index+2, attr.title);
+            if(attr.title_needs_free)
+                md_mark_chain_append(ctx, &PTR_CHAIN, opener_index+2);
+            ctx->marks[opener_index+2].prev = attr.title_size;
+
+            if(opener->ch == '[') {
+                last_link_beg = opener->beg;
+                last_link_end = closer->end;
+            } else {
+                last_img_beg = opener->beg;
+                last_img_end = closer->end;
+            }
+
+            md_analyze_link_contents(ctx, lines, n_lines, opener_index+1, closer_index);
+        }
+
+        opener_index = next_index;
+    }
+
+    return 0;
+}
+
+/* Analyze whether the mark '&' starts a HTML entity.
+ * If so, update its flags as well as flags of corresponding closer ';'. */
+static void
+md_analyze_entity(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    MD_MARK* closer;
+    OFF off;
+
+    /* Cannot be entity if there is no closer as the next mark.
+     * (Any other mark between would mean strange character which cannot be
+     * part of the entity.
+     *
+     * So we can do all the work on '&' and do not call this later for the
+     * closing mark ';'.
+     */
+    if(mark_index + 1 >= ctx->n_marks)
+        return;
+    closer = &ctx->marks[mark_index+1];
+    if(closer->ch != ';')
+        return;
+
+    if(md_is_entity(ctx, opener->beg, closer->end, &off)) {
+        MD_ASSERT(off == closer->end);
+
+        md_resolve_range(ctx, NULL, mark_index, mark_index+1);
+        opener->end = closer->end;
+    }
+}
+
+static void
+md_analyze_table_cell_boundary(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    mark->flags |= MD_MARK_RESOLVED;
+
+    md_mark_chain_append(ctx, &TABLECELLBOUNDARIES, mark_index);
+    ctx->n_table_cell_boundaries++;
+}
+
+/* Split a longer mark into two. The new mark takes the given count of
+ * characters. May only be called if an adequate number of dummy 'D' marks
+ * follows.
+ */
+static int
+md_split_simple_pairing_mark(MD_CTX* ctx, int mark_index, SZ n)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    int new_mark_index = mark_index + (mark->end - mark->beg - n);
+    MD_MARK* dummy = &ctx->marks[new_mark_index];
+
+    MD_ASSERT(mark->end - mark->beg > n);
+    MD_ASSERT(dummy->ch == 'D');
+
+    memcpy(dummy, mark, sizeof(MD_MARK));
+    mark->end -= n;
+    dummy->beg = mark->end;
+
+    return new_mark_index;
+}
+
+static void
+md_analyze_simple_pairing_mark(MD_CTX* ctx, MD_MARKCHAIN* chain, int mark_index,
+                               int apply_rule_of_three)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+
+    /* If we can be a closer, try to resolve with the preceding opener. */
+    if((mark->flags & MD_MARK_POTENTIAL_CLOSER)  &&  chain->tail >= 0) {
+        int opener_index = chain->tail;
+        MD_MARK* opener = &ctx->marks[opener_index];
+        SZ opener_size = opener->end - opener->beg;
+        SZ closer_size = mark->end - mark->beg;
+
+        /* Apply the "rule of three". */
+        if(apply_rule_of_three) {
+            while((mark->flags & MD_MARK_EMPH_INTRAWORD) || (opener->flags & MD_MARK_EMPH_INTRAWORD)) {
+                SZ opener_orig_size_modulo3;
+
+                switch(opener->flags & MD_MARK_EMPH_MODULO3_MASK) {
+                    case MD_MARK_EMPH_MODULO3_0:    opener_orig_size_modulo3 = 0; break;
+                    case MD_MARK_EMPH_MODULO3_1:    opener_orig_size_modulo3 = 1; break;
+                    case MD_MARK_EMPH_MODULO3_2:    opener_orig_size_modulo3 = 2; break;
+                    default:                        MD_UNREACHABLE(); break;
+                }
+
+                if((opener_orig_size_modulo3 + closer_size) % 3 != 0) {
+                    /* This opener is suitable. */
+                    break;
+                }
+
+                if(opener->prev >= 0) {
+                    /* Try previous opener. */
+                    opener_index = opener->prev;
+                    opener = &ctx->marks[opener_index];
+                    opener_size = opener->end - opener->beg;
+                    closer_size = mark->end - mark->beg;
+                } else {
+                    /* No suitable opener found. */
+                    goto cannot_resolve;
+                }
+            }
+        }
+
+        if(opener_size > closer_size) {
+            opener_index = md_split_simple_pairing_mark(ctx, opener_index, closer_size);
+            md_mark_chain_append(ctx, chain, opener_index);
+        } else if(opener_size < closer_size) {
+            md_split_simple_pairing_mark(ctx, mark_index, closer_size - opener_size);
+        }
+
+        md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_CROSSING);
+        md_resolve_range(ctx, chain, opener_index, mark_index);
+        return;
+    }
+
+cannot_resolve:
+    /* If not resolved, and we can be an opener, remember the mark for
+     * the future. */
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER)
+        md_mark_chain_append(ctx, chain, mark_index);
+}
+
+static inline void
+md_analyze_asterisk(MD_CTX* ctx, int mark_index)
+{
+    md_analyze_simple_pairing_mark(ctx, &ASTERISK_OPENERS, mark_index, 1);
+}
+
+static inline void
+md_analyze_underscore(MD_CTX* ctx, int mark_index)
+{
+    md_analyze_simple_pairing_mark(ctx, &UNDERSCORE_OPENERS, mark_index, 1);
+}
+
+static void
+md_analyze_tilde(MD_CTX* ctx, int mark_index)
+{
+    /* We attempt to be Github Flavored Markdown compatible here. GFM says
+     * that length of the tilde sequence is not important at all. Note that
+     * implies the TILDE_OPENERS chain can have at most one item. */
+
+    if(TILDE_OPENERS.head >= 0) {
+        /* The chain already contains an opener, so we may resolve the span. */
+        int opener_index = TILDE_OPENERS.head;
+
+        md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_CROSSING);
+        md_resolve_range(ctx, &TILDE_OPENERS, opener_index, mark_index);
+    } else {
+        /* We can only be opener. */
+        md_mark_chain_append(ctx, &TILDE_OPENERS, mark_index);
+    }
+}
+
+static void
+md_analyze_permissive_url_autolink(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    int closer_index = mark_index + 1;
+    MD_MARK* closer = &ctx->marks[closer_index];
+    MD_MARK* next_resolved_mark;
+    OFF off = opener->end;
+    int seen_dot = FALSE;
+    int seen_underscore_or_hyphen[2] = { FALSE, FALSE };
+
+    /* Check for domain. */
+    while(off < ctx->size) {
+        if(ISALNUM(off)) {
+            off++;
+        } else if(CH(off) == _T('.')) {
+            seen_dot = TRUE;
+            seen_underscore_or_hyphen[0] = seen_underscore_or_hyphen[1];
+            seen_underscore_or_hyphen[1] = FALSE;
+            off++;
+        } else if(ISANYOF2(off, _T('-'), _T('_'))) {
+            seen_underscore_or_hyphen[1] = TRUE;
+            off++;
+        } else {
+            break;
+        }
+    }
+
+    if(off <= opener->end || !seen_dot || seen_underscore_or_hyphen[0] || seen_underscore_or_hyphen[1])
+        return;
+
+    /* Check for path. */
+    next_resolved_mark = closer + 1;
+    while(next_resolved_mark->ch == 'D' || !(next_resolved_mark->flags & MD_MARK_RESOLVED))
+        next_resolved_mark++;
+    while(off < next_resolved_mark->beg  &&  CH(off) != _T('<')  &&  !ISWHITESPACE(off)  &&  !ISNEWLINE(off))
+        off++;
+
+    /* Path validation. */
+    if(ISANYOF(off-1, _T("?!.,:*_~)"))) {
+        if(CH(off-1) != _T(')')) {
+            off--;
+        } else {
+            int parenthesis_balance = 0;
+            OFF tmp;
+
+            for(tmp = opener->end; tmp < off; tmp++) {
+                if(CH(tmp) == _T('('))
+                    parenthesis_balance++;
+                else if(CH(tmp) == _T(')'))
+                    parenthesis_balance--;
+            }
+
+            if(parenthesis_balance < 0)
+                off--;
+        }
+    }
+
+    /* Ok. Lets call it auto-link. Adapt opener and create closer to zero
+     * length so all the contents becomes the link text. */
+    MD_ASSERT(closer->ch == 'D');
+    opener->end = opener->beg;
+    closer->ch = opener->ch;
+    closer->beg = off;
+    closer->end = off;
+    md_resolve_range(ctx, NULL, mark_index, closer_index);
+}
+
+/* The permissive autolinks do not have to be enclosed in '<' '>' but we
+ * instead impose stricter rules what is understood as an e-mail address
+ * here. Actually any non-alphanumeric characters with exception of '.'
+ * are prohibited both in username and after '@'. */
+static void
+md_analyze_permissive_email_autolink(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    int closer_index;
+    MD_MARK* closer;
+    OFF beg = opener->beg;
+    OFF end = opener->end;
+    int dot_count = 0;
+
+    MD_ASSERT(CH(beg) == _T('@'));
+
+    /* Scan for name before '@'. */
+    while(beg > 0  &&  (ISALNUM(beg-1) || ISANYOF(beg-1, _T(".-_+"))))
+        beg--;
+
+    /* Scan for domain after '@'. */
+    while(end < ctx->size  &&  (ISALNUM(end) || ISANYOF(end, _T(".-_")))) {
+        if(CH(end) == _T('.'))
+            dot_count++;
+        end++;
+    }
+    if(CH(end-1) == _T('.')) {  /* Final '.' not part of it. */
+        dot_count--;
+        end--;
+    }
+    else if(ISANYOF2(end-1, _T('-'), _T('_'))) /* These are forbidden at the end. */
+        return;
+    if(CH(end-1) == _T('@')  ||  dot_count == 0)
+        return;
+
+    /* Ok. Lets call it auto-link. Adapt opener and create closer to zero
+     * length so all the contents becomes the link text. */
+    closer_index = mark_index + 1;
+    closer = &ctx->marks[closer_index];
+    MD_ASSERT(closer->ch == 'D');
+
+    opener->beg = beg;
+    opener->end = beg;
+    closer->ch = opener->ch;
+    closer->beg = end;
+    closer->end = end;
+    md_resolve_range(ctx, NULL, mark_index, closer_index);
+}
+
+static inline void
+md_analyze_marks(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                 int mark_beg, int mark_end, const CHAR* mark_chars)
+{
+    int i = mark_beg;
+
+    while(i < mark_end) {
+        MD_MARK* mark = &ctx->marks[i];
+
+        /* Skip resolved spans. */
+        if(mark->flags & MD_MARK_RESOLVED) {
+            if(mark->flags & MD_MARK_OPENER) {
+                MD_ASSERT(i < mark->next);
+                i = mark->next + 1;
+            } else {
+                i++;
+            }
+            continue;
+        }
+
+        /* Skip marks we do not want to deal with. */
+        if(!ISANYOF_(mark->ch, mark_chars)) {
+            i++;
+            continue;
+        }
+
+        /* Analyze the mark. */
+        switch(mark->ch) {
+            case '`':   md_analyze_backtick(ctx, i); break;
+            case '<':   /* Pass through. */
+            case '>':   md_analyze_lt_gt(ctx, i, lines, n_lines); break;
+            case '[':   /* Pass through. */
+            case '!':   /* Pass through. */
+            case ']':   md_analyze_bracket(ctx, i); break;
+            case '&':   md_analyze_entity(ctx, i); break;
+            case '|':   md_analyze_table_cell_boundary(ctx, i); break;
+            case '*':   md_analyze_asterisk(ctx, i); break;
+            case '_':   md_analyze_underscore(ctx, i); break;
+            case '~':   md_analyze_tilde(ctx, i); break;
+            case '.':   /* Pass through. */
+            case ':':   md_analyze_permissive_url_autolink(ctx, i); break;
+            case '@':   md_analyze_permissive_email_autolink(ctx, i); break;
+        }
+
+        i++;
+    }
+}
+
+/* Analyze marks (build ctx->marks). */
+static int
+md_analyze_inlines(MD_CTX* ctx, const MD_LINE* lines, int n_lines, int table_mode)
+{
+    int ret;
+
+    /* Reset the previously collected stack of marks. */
+    ctx->n_marks = 0;
+
+    /* Collect all marks. */
+    MD_CHECK(md_collect_marks(ctx, lines, n_lines, table_mode));
+
+    /* We analyze marks in few groups to handle their precedence. */
+    /* (1) Entities; code spans; autolinks; raw HTML. */
+    md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("&`<>"));
+    BACKTICK_OPENERS.head = -1;
+    BACKTICK_OPENERS.tail = -1;
+    LOWERTHEN_OPENERS.head = -1;
+    LOWERTHEN_OPENERS.tail = -1;
+
+    if(table_mode) {
+        /* (2) Analyze table cell boundaries.
+         * Note we reset TABLECELLBOUNDARIES chain prior to the call md_analyze_marks(),
+         * not after, because caller may need it. */
+        MD_ASSERT(n_lines == 1);
+        TABLECELLBOUNDARIES.head = -1;
+        TABLECELLBOUNDARIES.tail = -1;
+        ctx->n_table_cell_boundaries = 0;
+        md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("|"));
+        return ret;
+    }
+
+    /* (3) Links. */
+    md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("[]!"));
+    MD_CHECK(md_resolve_links(ctx, lines, n_lines));
+    BRACKET_OPENERS.head = -1;
+    BRACKET_OPENERS.tail = -1;
+    ctx->unresolved_link_head = -1;
+    ctx->unresolved_link_tail = -1;
+
+    /* (4) Emphasis and strong emphasis; permissive autolinks. */
+    md_analyze_link_contents(ctx, lines, n_lines, 0, ctx->n_marks);
+
+abort:
+    return ret;
+}
+
+static void
+md_analyze_link_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                         int mark_beg, int mark_end)
+{
+    md_analyze_marks(ctx, lines, n_lines, mark_beg, mark_end, _T("*_~@:."));
+    ASTERISK_OPENERS.head = -1;
+    ASTERISK_OPENERS.tail = -1;
+    UNDERSCORE_OPENERS.head = -1;
+    UNDERSCORE_OPENERS.tail = -1;
+    TILDE_OPENERS.head = -1;
+    TILDE_OPENERS.tail = -1;
+}
+
+static int
+md_enter_leave_span_a(MD_CTX* ctx, int enter, MD_SPANTYPE type,
+                      const CHAR* dest, SZ dest_size, int prohibit_escapes_in_dest,
+                      const CHAR* title, SZ title_size)
+{
+    MD_ATTRIBUTE_BUILD href_build = { 0 };
+    MD_ATTRIBUTE_BUILD title_build = { 0 };
+    MD_SPAN_A_DETAIL det;
+    int ret = 0;
+
+    /* Note we here rely on fact that MD_SPAN_A_DETAIL and
+     * MD_SPAN_IMG_DETAIL are binary-compatible. */
+    memset(&det, 0, sizeof(MD_SPAN_A_DETAIL));
+    MD_CHECK(md_build_attribute(ctx, dest, dest_size,
+                    (prohibit_escapes_in_dest ? MD_BUILD_ATTR_NO_ESCAPES : 0),
+                    &det.href, &href_build));
+    MD_CHECK(md_build_attribute(ctx, title, title_size, 0, &det.title, &title_build));
+
+    if(enter)
+        MD_ENTER_SPAN(type, &det);
+    else
+        MD_LEAVE_SPAN(type, &det);
+
+abort:
+    md_free_attribute(ctx, &href_build);
+    md_free_attribute(ctx, &title_build);
+    return ret;
+}
+
+/* Render the output, accordingly to the analyzed ctx->marks. */
+static int
+md_process_inlines(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    MD_TEXTTYPE text_type;
+    const MD_LINE* line = lines;
+    MD_MARK* prev_mark = NULL;
+    MD_MARK* mark;
+    OFF off = lines[0].beg;
+    OFF end = lines[n_lines-1].end;
+    int enforce_hardbreak = 0;
+    int ret = 0;
+
+    /* Find first resolved mark. Note there is always at least one resolved
+     * mark,  the dummy last one after the end of the latest line we actually
+     * never really reach. This saves us of a lot of special checks and cases
+     * in this function. */
+    mark = ctx->marks;
+    while(!(mark->flags & MD_MARK_RESOLVED))
+        mark++;
+
+    text_type = MD_TEXT_NORMAL;
+
+    while(1) {
+        /* Process the text up to the next mark or end-of-line. */
+        OFF tmp = (line->end < mark->beg ? line->end : mark->beg);
+        if(tmp > off) {
+            MD_TEXT(text_type, STR(off), tmp - off);
+            off = tmp;
+        }
+
+        /* If reached the mark, process it and move to next one. */
+        if(off >= mark->beg) {
+            switch(mark->ch) {
+                case '\\':      /* Backslash escape. */
+                    if(ISNEWLINE(mark->beg+1))
+                        enforce_hardbreak = 1;
+                    else
+                        MD_TEXT(text_type, STR(mark->beg+1), 1);
+                    break;
+
+                case ' ':       /* Non-trivial space. */
+                    MD_TEXT(text_type, _T(" "), 1);
+                    break;
+
+                case '`':       /* Code span. */
+                    if(mark->flags & MD_MARK_OPENER) {
+                        MD_ENTER_SPAN(MD_SPAN_CODE, NULL);
+                        text_type = MD_TEXT_CODE;
+                    } else {
+                        MD_LEAVE_SPAN(MD_SPAN_CODE, NULL);
+                        text_type = MD_TEXT_NORMAL;
+                    }
+                    break;
+
+                case '_':
+                case '*':       /* Emphasis, strong emphasis. */
+                    if(mark->flags & MD_MARK_OPENER) {
+                        if((mark->end - off) % 2) {
+                            MD_ENTER_SPAN(MD_SPAN_EM, NULL);
+                            off++;
+                        }
+                        while(off + 1 < mark->end) {
+                            MD_ENTER_SPAN(MD_SPAN_STRONG, NULL);
+                            off += 2;
+                        }
+                    } else {
+                        while(off + 1 < mark->end) {
+                            MD_LEAVE_SPAN(MD_SPAN_STRONG, NULL);
+                            off += 2;
+                        }
+                        if((mark->end - off) % 2) {
+                            MD_LEAVE_SPAN(MD_SPAN_EM, NULL);
+                            off++;
+                        }
+                    }
+                    break;
+
+                case '~':
+                    if(mark->flags & MD_MARK_OPENER)
+                        MD_ENTER_SPAN(MD_SPAN_DEL, NULL);
+                    else
+                        MD_LEAVE_SPAN(MD_SPAN_DEL, NULL);
+                    break;
+
+                case '[':       /* Link, image. */
+                case '!':
+                case ']':
+                {
+                    const MD_MARK* opener = (mark->ch != ']' ? mark : &ctx->marks[mark->prev]);
+                    const MD_MARK* dest_mark = opener+1;
+                    const MD_MARK* title_mark = opener+2;
+
+                    MD_ASSERT(dest_mark->ch == 'D');
+                    MD_ASSERT(title_mark->ch == 'D');
+
+                    MD_CHECK(md_enter_leave_span_a(ctx, (mark->ch != ']'),
+                                (opener->ch == '!' ? MD_SPAN_IMG : MD_SPAN_A),
+                                STR(dest_mark->beg), dest_mark->end - dest_mark->beg, FALSE,
+                                md_mark_get_ptr(ctx, title_mark - ctx->marks), title_mark->prev));
+
+                    /* link/image closer may span multiple lines. */
+                    if(mark->ch == ']') {
+                        while(mark->end > line->end)
+                            line++;
+                    }
+
+                    break;
+                }
+
+                case '<':
+                case '>':       /* Autolink or raw HTML. */
+                    if(!(mark->flags & MD_MARK_AUTOLINK)) {
+                        /* Raw HTML. */
+                        if(mark->flags & MD_MARK_OPENER)
+                            text_type = MD_TEXT_HTML;
+                        else
+                            text_type = MD_TEXT_NORMAL;
+                        break;
+                    }
+                    /* Pass through, if auto-link. */
+
+                case '@':       /* Permissive e-mail autolink. */
+                case ':':       /* Permissive URL autolink. */
+                case '.':       /* Permissive WWW autolink. */
+                {
+                    MD_MARK* opener = ((mark->flags & MD_MARK_OPENER) ? mark : &ctx->marks[mark->prev]);
+                    MD_MARK* closer = &ctx->marks[opener->next];
+                    const CHAR* dest = STR(opener->end);
+                    SZ dest_size = closer->beg - opener->end;
+
+                    /* For permissive auto-links we do not know closer mark
+                     * position at the time of md_collect_marks(), therefore
+                     * it can be out-of-order in ctx->marks[].
+                     *
+                     * With this flag, we make sure that we output the closer
+                     * only if we processed the opener. */
+                    if(mark->flags & MD_MARK_OPENER)
+                        closer->flags |= MD_MARK_VALIDPERMISSIVEAUTOLINK;
+
+                    if(opener->ch == '@' || opener->ch == '.') {
+                        dest_size += 7;
+                        MD_TEMP_BUFFER(dest_size * sizeof(CHAR));
+                        memcpy(ctx->buffer,
+                                (opener->ch == '@' ? _T("mailto:") : _T("http://")),
+                                7 * sizeof(CHAR));
+                        memcpy(ctx->buffer + 7, dest, (dest_size-7) * sizeof(CHAR));
+                        dest = ctx->buffer;
+                    }
+
+                    if(closer->flags & MD_MARK_VALIDPERMISSIVEAUTOLINK)
+                        MD_CHECK(md_enter_leave_span_a(ctx, (mark->flags & MD_MARK_OPENER),
+                                    MD_SPAN_A, dest, dest_size, TRUE, NULL, 0));
+                    break;
+                }
+
+                case '&':       /* Entity. */
+                    MD_TEXT(MD_TEXT_ENTITY, STR(mark->beg), mark->end - mark->beg);
+                    break;
+
+                case '\0':
+                    MD_TEXT(MD_TEXT_NULLCHAR, _T(""), 1);
+                    break;
+
+                case 127:
+                    goto abort;
+            }
+
+            off = mark->end;
+
+            /* Move to next resolved mark. */
+            prev_mark = mark;
+            mark++;
+            while(!(mark->flags & MD_MARK_RESOLVED)  ||  mark->beg < off)
+                mark++;
+        }
+
+        /* If reached end of line, move to next one. */
+        if(off >= line->end) {
+            /* If it is the last line, we are done. */
+            if(off >= end)
+                break;
+
+            if(text_type == MD_TEXT_CODE) {
+                /* Inside code spans, new lines are transformed into single
+                 * spaces. */
+                MD_ASSERT(prev_mark != NULL);
+                MD_ASSERT(prev_mark->ch == '`'  &&  (prev_mark->flags & MD_MARK_OPENER));
+                MD_ASSERT(mark->ch == '`'  &&  (mark->flags & MD_MARK_CLOSER));
+
+                if(prev_mark->end < off  &&  off < mark->beg)
+                    MD_TEXT(MD_TEXT_CODE, _T(" "), 1);
+            } else if(text_type == MD_TEXT_HTML) {
+                /* Inside raw HTML, we output the new line verbatim, including
+                 * any trailing spaces. */
+                OFF tmp = off;
+
+                while(tmp < end  &&  ISBLANK(tmp))
+                    tmp++;
+                if(tmp > off)
+                    MD_TEXT(MD_TEXT_HTML, STR(off), tmp - off);
+                MD_TEXT(MD_TEXT_HTML, _T("\n"), 1);
+            } else {
+                /* Output soft or hard line break. */
+                MD_TEXTTYPE break_type = MD_TEXT_SOFTBR;
+
+                if(text_type == MD_TEXT_NORMAL) {
+                    if(enforce_hardbreak)
+                        break_type = MD_TEXT_BR;
+                    else if((CH(line->end) == _T(' ') && CH(line->end+1) == _T(' ')))
+                        break_type = MD_TEXT_BR;
+                }
+
+                MD_TEXT(break_type, _T("\n"), 1);
+            }
+
+            /* Move to the next line. */
+            line++;
+            off = line->beg;
+
+            enforce_hardbreak = 0;
+        }
+    }
+
+abort:
+    return ret;
+}
+
+
+/***************************
+ ***  Processing Tables  ***
+ ***************************/
+
+static void
+md_analyze_table_alignment(MD_CTX* ctx, OFF beg, OFF end, MD_ALIGN* align, int n_align)
+{
+    static const MD_ALIGN align_map[] = { MD_ALIGN_DEFAULT, MD_ALIGN_LEFT, MD_ALIGN_RIGHT, MD_ALIGN_CENTER };
+    OFF off = beg;
+
+    while(n_align > 0) {
+        int index = 0;  /* index into align_map[] */
+
+        while(CH(off) != _T('-'))
+            off++;
+        if(off > beg  &&  CH(off-1) == _T(':'))
+            index |= 1;
+        while(off < end  &&  CH(off) == _T('-'))
+            off++;
+        if(off < end  &&  CH(off) == _T(':'))
+            index |= 2;
+
+        *align = align_map[index];
+        align++;
+        n_align--;
+    }
+
+}
+
+/* Forward declaration. */
+static int md_process_normal_block_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines);
+
+static int
+md_process_table_cell(MD_CTX* ctx, MD_BLOCKTYPE cell_type, MD_ALIGN align, OFF beg, OFF end)
+{
+    MD_LINE line;
+    MD_BLOCK_TD_DETAIL det;
+    int ret = 0;
+
+    while(beg < end  &&  ISWHITESPACE(beg))
+        beg++;
+    while(end > beg  &&  ISWHITESPACE(end-1))
+        end--;
+
+    det.align = align;
+    line.beg = beg;
+    line.end = end;
+
+    MD_ENTER_BLOCK(cell_type, &det);
+    MD_CHECK(md_process_normal_block_contents(ctx, &line, 1));
+    MD_LEAVE_BLOCK(cell_type, &det);
+
+abort:
+    return ret;
+}
+
+static int
+md_process_table_row(MD_CTX* ctx, MD_BLOCKTYPE cell_type, OFF beg, OFF end,
+                     const MD_ALIGN* align, int col_count)
+{
+    MD_LINE line;
+    OFF* pipe_offs = NULL;
+    int i, j, n;
+    int ret = 0;
+
+    line.beg = beg;
+    line.end = end;
+
+    /* Break the line into table cells by identifying pipe characters who
+     * form the cell boundary. */
+    MD_CHECK(md_analyze_inlines(ctx, &line, 1, TRUE));
+
+    /* We have to remember the cell boundaries in local buffer because
+     * ctx->marks[] shall be reused during cell contents processing. */
+    n = ctx->n_table_cell_boundaries;
+    pipe_offs = (OFF*) malloc(n * sizeof(OFF));
+    if(pipe_offs == NULL) {
+        MD_LOG("malloc() failed.");
+        ret = -1;
+        goto abort;
+    }
+    for(i = TABLECELLBOUNDARIES.head, j = 0; i >= 0; i = ctx->marks[i].next) {
+        MD_MARK* mark = &ctx->marks[i];
+        pipe_offs[j++] = mark->beg;
+    }
+
+    /* Process cells. */
+    MD_ENTER_BLOCK(MD_BLOCK_TR, NULL);
+    j = 0;
+    if(beg < pipe_offs[0]  &&  j < col_count)
+        MD_CHECK(md_process_table_cell(ctx, cell_type, align[j++], beg, pipe_offs[0]));
+    for(i = 0; i < n-1  &&  j < col_count; i++)
+        MD_CHECK(md_process_table_cell(ctx, cell_type, align[j++], pipe_offs[i]+1, pipe_offs[i+1]));
+    if(pipe_offs[n-1] < end-1  &&  j < col_count)
+        MD_CHECK(md_process_table_cell(ctx, cell_type, align[j++], pipe_offs[n-1]+1, end));
+    /* Make sure we call enough table cells even if the current table contains
+     * too few of them. */
+    while(j < col_count)
+        MD_CHECK(md_process_table_cell(ctx, cell_type, align[j++], 0, 0));
+
+    MD_LEAVE_BLOCK(MD_BLOCK_TR, NULL);
+
+abort:
+    free(pipe_offs);
+
+    /* Free any temporary memory blocks stored within some dummy marks. */
+    for(i = PTR_CHAIN.head; i >= 0; i = ctx->marks[i].next)
+        free(md_mark_get_ptr(ctx, i));
+    PTR_CHAIN.head = -1;
+    PTR_CHAIN.tail = -1;
+
+    return ret;
+}
+
+static int
+md_process_table_block_contents(MD_CTX* ctx, int col_count, const MD_LINE* lines, int n_lines)
+{
+    MD_ALIGN* align;
+    int i;
+    int ret = 0;
+
+    /* At least two lines have to be present: The column headers and the line
+     * with the underlines. */
+    MD_ASSERT(n_lines >= 2);
+
+    align = malloc(col_count * sizeof(MD_ALIGN));
+    if(align == NULL) {
+        MD_LOG("malloc() failed.");
+        ret = -1;
+        goto abort;
+    }
+
+    md_analyze_table_alignment(ctx, lines[1].beg, lines[1].end, align, col_count);
+
+    MD_ENTER_BLOCK(MD_BLOCK_THEAD, NULL);
+    MD_CHECK(md_process_table_row(ctx, MD_BLOCK_TH,
+                        lines[0].beg, lines[0].end, align, col_count));
+    MD_LEAVE_BLOCK(MD_BLOCK_THEAD, NULL);
+
+    MD_ENTER_BLOCK(MD_BLOCK_TBODY, NULL);
+    for(i = 2; i < n_lines; i++) {
+        MD_CHECK(md_process_table_row(ctx, MD_BLOCK_TD,
+                        lines[i].beg, lines[i].end, align, col_count));
+    }
+    MD_LEAVE_BLOCK(MD_BLOCK_TBODY, NULL);
+
+abort:
+    free(align);
+    return ret;
+}
+
+static int
+md_is_table_row(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    MD_LINE line;
+    int i;
+    int ret = FALSE;
+
+    line.beg = beg;
+    line.end = beg;
+
+    /* Find end of line. */
+    while(line.end < ctx->size  &&  !ISNEWLINE(line.end))
+        line.end++;
+
+    MD_CHECK(md_analyze_inlines(ctx, &line, 1, TRUE));
+
+    if(TABLECELLBOUNDARIES.head >= 0) {
+        if(p_end != NULL)
+            *p_end = line.end;
+        ret = TRUE;
+    }
+
+abort:
+    /* Free any temporary memory blocks stored within some dummy marks. */
+    for(i = PTR_CHAIN.head; i >= 0; i = ctx->marks[i].next)
+        free(md_mark_get_ptr(ctx, i));
+    PTR_CHAIN.head = -1;
+    PTR_CHAIN.tail = -1;
+
+    return ret;
+}
+
+
+/**************************
+ ***  Processing Block  ***
+ **************************/
+
+#define MD_BLOCK_CONTAINER_OPENER   0x01
+#define MD_BLOCK_CONTAINER_CLOSER   0x02
+#define MD_BLOCK_CONTAINER          (MD_BLOCK_CONTAINER_OPENER | MD_BLOCK_CONTAINER_CLOSER)
+#define MD_BLOCK_LOOSE_LIST         0x04
+
+struct MD_BLOCK_tag {
+    MD_BLOCKTYPE type  :  8;
+    unsigned flags     :  8;
+
+    /* MD_BLOCK_H:      Header level (1 - 6)
+     * MD_BLOCK_CODE:   Non-zero if fenced, zero if indented.
+     * MD_BLOCK_LI:     Task mark character (0 if not task list item, 'x', 'X' or ' ').
+     * MD_BLOCK_TABLE:  Column count (as determined by the table underline).
+     */
+    unsigned data      : 16;
+
+    /* Leaf blocks:     Count of lines (MD_LINE or MD_VERBATIMLINE) on the block.
+     * MD_BLOCK_LI:     Task mark offset in the input doc.
+     * MD_BLOCK_OL:     Start item number.
+     */
+    unsigned n_lines;
+};
+
+struct MD_CONTAINER_tag {
+    CHAR ch;
+    unsigned is_loose    : 8;
+    unsigned is_task     : 8;
+    unsigned start;
+    unsigned mark_indent;
+    unsigned contents_indent;
+    OFF block_byte_off;
+    OFF task_mark_off;
+};
+
+
+static int
+md_process_normal_block_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    int i;
+    int ret;
+
+    MD_CHECK(md_analyze_inlines(ctx, lines, n_lines, FALSE));
+    MD_CHECK(md_process_inlines(ctx, lines, n_lines));
+
+abort:
+    /* Free any temporary memory blocks stored within some dummy marks. */
+    for(i = PTR_CHAIN.head; i >= 0; i = ctx->marks[i].next)
+        free(md_mark_get_ptr(ctx, i));
+    PTR_CHAIN.head = -1;
+    PTR_CHAIN.tail = -1;
+
+    return ret;
+}
+
+static int
+md_process_verbatim_block_contents(MD_CTX* ctx, MD_TEXTTYPE text_type, const MD_VERBATIMLINE* lines, int n_lines)
+{
+    static const CHAR indent_chunk_str[] = _T("                ");
+    static const SZ indent_chunk_size = SIZEOF_ARRAY(indent_chunk_str) - 1;
+
+    int i;
+    int ret = 0;
+
+    for(i = 0; i < n_lines; i++) {
+        const MD_VERBATIMLINE* line = &lines[i];
+        int indent = line->indent;
+
+        MD_ASSERT(indent >= 0);
+
+        /* Output code indentation. */
+        while(indent > SIZEOF_ARRAY(indent_chunk_str)) {
+            MD_TEXT(text_type, indent_chunk_str, indent_chunk_size);
+            indent -= SIZEOF_ARRAY(indent_chunk_str);
+        }
+        if(indent > 0)
+            MD_TEXT(text_type, indent_chunk_str, indent);
+
+        /* Output the code line itself. */
+        MD_TEXT_INSECURE(text_type, STR(line->beg), line->end - line->beg);
+
+        /* Enforce end-of-line. */
+        MD_TEXT(text_type, _T("\n"), 1);
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_process_code_block_contents(MD_CTX* ctx, int is_fenced, const MD_VERBATIMLINE* lines, int n_lines)
+{
+    if(is_fenced) {
+        /* Skip the first line in case of fenced code: It is the fence.
+         * (Only the starting fence is present due to logic in md_analyze_line().) */
+        lines++;
+        n_lines--;
+    } else {
+        /* Ignore blank lines at start/end of indented code block. */
+        while(n_lines > 0  &&  lines[0].beg == lines[0].end) {
+            lines++;
+            n_lines--;
+        }
+        while(n_lines > 0  &&  lines[n_lines-1].beg == lines[n_lines-1].end) {
+            n_lines--;
+        }
+    }
+
+    if(n_lines == 0)
+        return 0;
+
+    return md_process_verbatim_block_contents(ctx, MD_TEXT_CODE, lines, n_lines);
+}
+
+static int
+md_setup_fenced_code_detail(MD_CTX* ctx, const MD_BLOCK* block, MD_BLOCK_CODE_DETAIL* det,
+                            MD_ATTRIBUTE_BUILD* info_build, MD_ATTRIBUTE_BUILD* lang_build)
+{
+    const MD_VERBATIMLINE* fence_line = (const MD_VERBATIMLINE*)(block + 1);
+    OFF beg = fence_line->beg;
+    OFF end = fence_line->end;
+    OFF lang_end;
+    CHAR fence_ch = CH(fence_line->beg);
+    int ret = 0;
+
+    /* Skip the fence itself. */
+    while(beg < ctx->size  &&  CH(beg) == fence_ch)
+        beg++;
+    /* Trim initial spaces. */
+    while(beg < ctx->size  &&  CH(beg) == _T(' '))
+        beg++;
+
+    /* Trim trailing spaces. */
+    while(end > beg  &&  CH(end-1) == _T(' '))
+        end--;
+
+    /* Build info string attribute. */
+    MD_CHECK(md_build_attribute(ctx, STR(beg), end - beg, 0, &det->info, info_build));
+
+    /* Build info string attribute. */
+    lang_end = beg;
+    while(lang_end < end  &&  !ISWHITESPACE(lang_end))
+        lang_end++;
+    MD_CHECK(md_build_attribute(ctx, STR(beg), lang_end - beg, 0, &det->lang, lang_build));
+
+abort:
+    return ret;
+}
+
+static int
+md_process_leaf_block(MD_CTX* ctx, const MD_BLOCK* block)
+{
+    union {
+        MD_BLOCK_H_DETAIL header;
+        MD_BLOCK_CODE_DETAIL code;
+    } det;
+    MD_ATTRIBUTE_BUILD info_build;
+    MD_ATTRIBUTE_BUILD lang_build;
+    int is_in_tight_list;
+    int clean_fence_code_detail = FALSE;
+    int ret = 0;
+
+    memset(&det, 0, sizeof(det));
+
+    if(ctx->n_containers == 0)
+        is_in_tight_list = FALSE;
+    else
+        is_in_tight_list = !ctx->containers[ctx->n_containers-1].is_loose;
+
+    switch(block->type) {
+        case MD_BLOCK_H:
+            det.header.level = block->data;
+            break;
+
+        case MD_BLOCK_CODE:
+            /* For fenced code block, we may need to set the info string. */
+            if(block->data != 0) {
+                memset(&det.code, 0, sizeof(MD_BLOCK_CODE_DETAIL));
+                clean_fence_code_detail = TRUE;
+                MD_CHECK(md_setup_fenced_code_detail(ctx, block, &det.code, &info_build, &lang_build));
+            }
+            break;
+
+        default:
+            /* Noop. */
+            break;
+    }
+
+    if(!is_in_tight_list  ||  block->type != MD_BLOCK_P)
+        MD_ENTER_BLOCK(block->type, (void*) &det);
+
+    /* Process the block contents accordingly to is type. */
+    switch(block->type) {
+        case MD_BLOCK_HR:
+            /* noop */
+            break;
+
+        case MD_BLOCK_CODE:
+            MD_CHECK(md_process_code_block_contents(ctx, (block->data != 0),
+                            (const MD_VERBATIMLINE*)(block + 1), block->n_lines));
+            break;
+
+        case MD_BLOCK_HTML:
+            MD_CHECK(md_process_verbatim_block_contents(ctx, MD_TEXT_HTML,
+                            (const MD_VERBATIMLINE*)(block + 1), block->n_lines));
+            break;
+
+        case MD_BLOCK_TABLE:
+            MD_CHECK(md_process_table_block_contents(ctx, block->data,
+                            (const MD_LINE*)(block + 1), block->n_lines));
+            break;
+
+        default:
+            MD_CHECK(md_process_normal_block_contents(ctx,
+                            (const MD_LINE*)(block + 1), block->n_lines));
+            break;
+    }
+
+    if(!is_in_tight_list  ||  block->type != MD_BLOCK_P)
+        MD_LEAVE_BLOCK(block->type, (void*) &det);
+
+abort:
+    if(clean_fence_code_detail) {
+        md_free_attribute(ctx, &info_build);
+        md_free_attribute(ctx, &lang_build);
+    }
+    return ret;
+}
+
+static int
+md_process_all_blocks(MD_CTX* ctx)
+{
+    int byte_off = 0;
+    int ret = 0;
+
+    /* ctx->containers now is not needed for detection of lists and list items
+     * so we reuse it for tracking what lists are loose or tight. We rely
+     * on the fact the vector is large enough to hold the deepest nesting
+     * level of lists. */
+    ctx->n_containers = 0;
+
+    while(byte_off < ctx->n_block_bytes) {
+        MD_BLOCK* block = (MD_BLOCK*)((char*)ctx->block_bytes + byte_off);
+        union {
+            MD_BLOCK_UL_DETAIL ul;
+            MD_BLOCK_OL_DETAIL ol;
+            MD_BLOCK_LI_DETAIL li;
+        } det;
+
+        switch(block->type) {
+            case MD_BLOCK_UL:
+                det.ul.is_tight = (block->flags & MD_BLOCK_LOOSE_LIST) ? FALSE : TRUE;
+                det.ul.mark = (CHAR) block->data;
+                break;
+
+            case MD_BLOCK_OL:
+                det.ol.start = block->n_lines;
+                det.ol.is_tight =  (block->flags & MD_BLOCK_LOOSE_LIST) ? FALSE : TRUE;
+                det.ol.mark_delimiter = (CHAR) block->data;
+                break;
+
+            case MD_BLOCK_LI:
+                det.li.is_task = (block->data != 0);
+                det.li.task_mark = (CHAR) block->data;
+                det.li.task_mark_offset = (OFF) block->n_lines;
+                break;
+
+            default:
+                /* noop */
+                break;
+        }
+
+        if(block->flags & MD_BLOCK_CONTAINER) {
+            if(block->flags & MD_BLOCK_CONTAINER_CLOSER) {
+                MD_LEAVE_BLOCK(block->type, &det);
+
+                if(block->type == MD_BLOCK_UL || block->type == MD_BLOCK_OL || block->type == MD_BLOCK_QUOTE)
+                    ctx->n_containers--;
+            }
+
+            if(block->flags & MD_BLOCK_CONTAINER_OPENER) {
+                MD_ENTER_BLOCK(block->type, &det);
+
+                if(block->type == MD_BLOCK_UL || block->type == MD_BLOCK_OL) {
+                    ctx->containers[ctx->n_containers].is_loose = (block->flags & MD_BLOCK_LOOSE_LIST);
+                    ctx->n_containers++;
+                } else if(block->type == MD_BLOCK_QUOTE) {
+                    /* This causes that any text in a block quote, even if
+                     * nested inside a tight list item, is wrapped with
+                     * <p>...</p>. */
+                    ctx->containers[ctx->n_containers].is_loose = TRUE;
+                    ctx->n_containers++;
+                }
+            }
+        } else {
+            MD_CHECK(md_process_leaf_block(ctx, block));
+
+            if(block->type == MD_BLOCK_CODE || block->type == MD_BLOCK_HTML)
+                byte_off += block->n_lines * sizeof(MD_VERBATIMLINE);
+            else
+                byte_off += block->n_lines * sizeof(MD_LINE);
+        }
+
+        byte_off += sizeof(MD_BLOCK);
+    }
+
+    ctx->n_block_bytes = 0;
+
+abort:
+    return ret;
+}
+
+
+/************************************
+ ***  Grouping Lines into Blocks  ***
+ ************************************/
+
+static void*
+md_push_block_bytes(MD_CTX* ctx, int n_bytes)
+{
+    void* ptr;
+
+    if(ctx->n_block_bytes + n_bytes > ctx->alloc_block_bytes) {
+        void* new_block_bytes;
+
+        ctx->alloc_block_bytes = (ctx->alloc_block_bytes > 0 ? ctx->alloc_block_bytes * 2 : 512);
+        new_block_bytes = realloc(ctx->block_bytes, ctx->alloc_block_bytes);
+        if(new_block_bytes == NULL) {
+            MD_LOG("realloc() failed.");
+            return NULL;
+        }
+
+        /* Fix the ->current_block after the reallocation. */
+        if(ctx->current_block != NULL) {
+            OFF off_current_block = (char*) ctx->current_block - (char*) ctx->block_bytes;
+            ctx->current_block = (MD_BLOCK*) ((char*) new_block_bytes + off_current_block);
+        }
+
+        ctx->block_bytes = new_block_bytes;
+    }
+
+    ptr = (char*)ctx->block_bytes + ctx->n_block_bytes;
+    ctx->n_block_bytes += n_bytes;
+    return ptr;
+}
+
+static int
+md_start_new_block(MD_CTX* ctx, const MD_LINE_ANALYSIS* line)
+{
+    MD_BLOCK* block;
+
+    MD_ASSERT(ctx->current_block == NULL);
+
+    block = (MD_BLOCK*) md_push_block_bytes(ctx, sizeof(MD_BLOCK));
+    if(block == NULL)
+        return -1;
+
+    switch(line->type) {
+        case MD_LINE_HR:
+            block->type = MD_BLOCK_HR;
+            break;
+
+        case MD_LINE_ATXHEADER:
+        case MD_LINE_SETEXTHEADER:
+            block->type = MD_BLOCK_H;
+            break;
+
+        case MD_LINE_FENCEDCODE:
+        case MD_LINE_INDENTEDCODE:
+            block->type = MD_BLOCK_CODE;
+            break;
+
+        case MD_LINE_TEXT:
+            block->type = MD_BLOCK_P;
+            break;
+
+        case MD_LINE_HTML:
+            block->type = MD_BLOCK_HTML;
+            break;
+
+        case MD_LINE_BLANK:
+        case MD_LINE_SETEXTUNDERLINE:
+        case MD_LINE_TABLEUNDERLINE:
+        default:
+            MD_UNREACHABLE();
+            break;
+    }
+
+    block->flags = 0;
+    block->data = line->data;
+    block->n_lines = 0;
+
+    ctx->current_block = block;
+    return 0;
+}
+
+/* Eat from start of current (textual) block any reference definitions and
+ * remember them so we can resolve any links referring to them.
+ *
+ * (Reference definitions can only be at start of it as they cannot break
+ * a paragraph.)
+ */
+static int
+md_consume_link_reference_definitions(MD_CTX* ctx)
+{
+    MD_LINE* lines = (MD_LINE*) (ctx->current_block + 1);
+    int n_lines = ctx->current_block->n_lines;
+    int n = 0;
+
+    /* Compute how many lines at the start of the block form one or more
+     * reference definitions. */
+    while(n < n_lines) {
+        int n_link_ref_lines;
+
+        n_link_ref_lines = md_is_link_reference_definition(ctx,
+                                    lines + n, n_lines - n);
+        /* Not a reference definition? */
+        if(n_link_ref_lines == 0)
+            break;
+
+        /* We fail if it is the ref. def. but it could not be stored due
+         * a memory allocation error. */
+        if(n_link_ref_lines < 0)
+            return -1;
+
+        n += n_link_ref_lines;
+    }
+
+    /* If there was at least one reference definition, we need to remove
+     * its lines from the block, or perhaps even the whole block. */
+    if(n > 0) {
+        if(n == n_lines) {
+            /* Remove complete block. */
+            ctx->n_block_bytes -= n * sizeof(MD_LINE);
+            ctx->n_block_bytes -= sizeof(MD_BLOCK);
+        } else {
+            /* Remove just some initial lines from the block. */
+            memmove(lines, lines + n, (n_lines - n) * sizeof(MD_LINE));
+            ctx->current_block->n_lines -= n;
+            ctx->n_block_bytes -= n * sizeof(MD_LINE);
+        }
+    }
+
+    return 0;
+}
+
+static int
+md_end_current_block(MD_CTX* ctx)
+{
+    int ret = 0;
+
+    if(ctx->current_block == NULL)
+        return ret;
+
+    /* Check whether there is a reference definition. (We do this here instead
+     * of in md_analyze_line() because reference definition can take multiple
+     * lines.) */
+    if(ctx->current_block->type == MD_BLOCK_P) {
+        MD_LINE* lines = (MD_LINE*) (ctx->current_block + 1);
+        if(CH(lines[0].beg) == _T('['))
+            MD_CHECK(md_consume_link_reference_definitions(ctx));
+    }
+
+    /* Mark we are not building any block anymore. */
+    ctx->current_block = NULL;
+
+abort:
+    return ret;
+}
+
+static int
+md_add_line_into_current_block(MD_CTX* ctx, const MD_LINE_ANALYSIS* analysis)
+{
+    MD_ASSERT(ctx->current_block != NULL);
+
+    if(ctx->current_block->type == MD_BLOCK_CODE || ctx->current_block->type == MD_BLOCK_HTML) {
+        MD_VERBATIMLINE* line;
+
+        line = (MD_VERBATIMLINE*) md_push_block_bytes(ctx, sizeof(MD_VERBATIMLINE));
+        if(line == NULL)
+            return -1;
+
+        line->indent = analysis->indent;
+        line->beg = analysis->beg;
+        line->end = analysis->end;
+    } else {
+        MD_LINE* line;
+
+        line = (MD_LINE*) md_push_block_bytes(ctx, sizeof(MD_LINE));
+        if(line == NULL)
+            return -1;
+
+        line->beg = analysis->beg;
+        line->end = analysis->end;
+    }
+    ctx->current_block->n_lines++;
+
+    return 0;
+}
+
+static int
+md_push_container_bytes(MD_CTX* ctx, MD_BLOCKTYPE type, unsigned start,
+                        unsigned data, unsigned flags)
+{
+    MD_BLOCK* block;
+    int ret = 0;
+
+    MD_CHECK(md_end_current_block(ctx));
+
+    block = (MD_BLOCK*) md_push_block_bytes(ctx, sizeof(MD_BLOCK));
+    if(block == NULL)
+        return -1;
+
+    block->type = type;
+    block->flags = flags;
+    block->data = data;
+    block->n_lines = start;
+
+abort:
+    return ret;
+}
+
+
+
+/***********************
+ ***  Line Analysis  ***
+ ***********************/
+
+static int
+md_is_hr_line(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    OFF off = beg + 1;
+    int n = 1;
+
+    while(off < ctx->size  &&  (CH(off) == CH(beg) || CH(off) == _T(' ') || CH(off) == _T('\t'))) {
+        if(CH(off) == CH(beg))
+            n++;
+        off++;
+    }
+
+    if(n < 3)
+        return FALSE;
+
+    /* Nothing else can be present on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_atxheader_line(MD_CTX* ctx, OFF beg, OFF* p_beg, OFF* p_end, unsigned* p_level)
+{
+    int n;
+    OFF off = beg + 1;
+
+    while(off < ctx->size  &&  CH(off) == _T('#')  &&  off - beg < 7)
+        off++;
+    n = off - beg;
+
+    if(n > 6)
+        return FALSE;
+    *p_level = n;
+
+    if(!(ctx->parser.flags & MD_FLAG_PERMISSIVEATXHEADERS)  &&  off < ctx->size  &&
+       CH(off) != _T(' ')  &&  CH(off) != _T('\t')  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+    *p_beg = off;
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_setext_underline(MD_CTX* ctx, OFF beg, OFF* p_end, unsigned* p_level)
+{
+    OFF off = beg + 1;
+
+    while(off < ctx->size  &&  CH(off) == CH(beg))
+        off++;
+
+    while(off < ctx->size  && CH(off) == _T(' '))
+        off++;
+
+    /* Optionally, space(s) can follow. */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* But nothing more is allowed on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    *p_level = (CH(beg) == _T('=') ? 1 : 2);
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_table_underline(MD_CTX* ctx, OFF beg, OFF* p_end, unsigned* p_col_count)
+{
+    OFF off = beg;
+    int found_pipe = FALSE;
+    unsigned col_count = 0;
+
+    if(off < ctx->size  &&  CH(off) == _T('|')) {
+        found_pipe = TRUE;
+        off++;
+        while(off < ctx->size  &&  ISWHITESPACE(off))
+            off++;
+    }
+
+    while(1) {
+        OFF cell_beg;
+        int delimited = FALSE;
+
+        /* Cell underline ("-----", ":----", "----:" or ":----:") */
+        cell_beg = off;
+        if(off < ctx->size  &&  CH(off) == _T(':'))
+            off++;
+        while(off < ctx->size  &&  CH(off) == _T('-'))
+            off++;
+        if(off < ctx->size  &&  CH(off) == _T(':'))
+            off++;
+        if(off - cell_beg < 3)
+            return FALSE;
+
+        col_count++;
+
+        /* Pipe delimiter (optional at the end of line). */
+        while(off < ctx->size  &&  ISWHITESPACE(off))
+            off++;
+        if(off < ctx->size  &&  CH(off) == _T('|')) {
+            delimited = TRUE;
+            found_pipe =  TRUE;
+            off++;
+            while(off < ctx->size  &&  ISWHITESPACE(off))
+                off++;
+        }
+
+        /* Success, if we reach end of line. */
+        if(off >= ctx->size  ||  ISNEWLINE(off))
+            break;
+
+        if(!delimited)
+            return FALSE;
+    }
+
+    if(!found_pipe)
+        return FALSE;
+
+    *p_end = off;
+    *p_col_count = col_count;
+    return TRUE;
+}
+
+static int
+md_is_opening_code_fence(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < ctx->size && CH(off) == CH(beg))
+        off++;
+
+    /* Fence must have at least three characters. */
+    if(off - beg < 3)
+        return FALSE;
+
+    ctx->code_fence_length = off - beg;
+
+    /* Optionally, space(s) can follow. */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* Optionally, an info string can follow. It must not contain '`'. */
+    while(off < ctx->size  &&  CH(off) != _T('`')  &&  !ISNEWLINE(off))
+        off++;
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_closing_code_fence(MD_CTX* ctx, CHAR ch, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+    int ret = FALSE;
+
+    /* Closing fence must have at least the same length and use same char as
+     * opening one. */
+    while(off < ctx->size  &&  CH(off) == ch)
+        off++;
+    if(off - beg < ctx->code_fence_length)
+        goto out;
+
+    /* Optionally, space(s) can follow */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* But nothing more is allowed on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        goto out;
+
+    ret = TRUE;
+
+out:
+    /* Note we set *p_end even on failure: If we are not closing fence, caller
+     * would eat the line anyway without any parsing. */
+    *p_end = off;
+    return ret;
+}
+
+/* Returns type of the raw HTML block, or FALSE if it is not HTML block.
+ * (Refer to CommonMark specification for details about the types.)
+ */
+static int
+md_is_html_block_start_condition(MD_CTX* ctx, OFF beg)
+{
+    typedef struct TAG_tag TAG;
+    struct TAG_tag {
+        const CHAR* name;
+        unsigned len    : 8;
+    };
+
+    /* Type 6 is started by a long list of allowed tags. We use two-level
+     * tree to speed-up the search. */
+#ifdef X
+    #undef X
+#endif
+#define X(name)     { _T(name), sizeof(name)-1 }
+#define Xend        { NULL, 0 }
+    static const TAG t1[] = { X("script"), X("pre"), X("style"), Xend };
+
+    static const TAG a6[] = { X("address"), X("article"), X("aside"), Xend };
+    static const TAG b6[] = { X("base"), X("basefont"), X("blockquote"), X("body"), Xend };
+    static const TAG c6[] = { X("caption"), X("center"), X("col"), X("colgroup"), Xend };
+    static const TAG d6[] = { X("dd"), X("details"), X("dialog"), X("dir"),
+                              X("div"), X("dl"), X("dt"), Xend };
+    static const TAG f6[] = { X("fieldset"), X("figcaption"), X("figure"), X("footer"),
+                              X("form"), X("frame"), X("frameset"), Xend };
+    static const TAG h6[] = { X("h1"), X("head"), X("header"), X("hr"), X("html"), Xend };
+    static const TAG i6[] = { X("iframe"), Xend };
+    static const TAG l6[] = { X("legend"), X("li"), X("link"), Xend };
+    static const TAG m6[] = { X("main"), X("menu"), X("menuitem"), X("meta"), Xend };
+    static const TAG n6[] = { X("nav"), X("noframes"), Xend };
+    static const TAG o6[] = { X("ol"), X("optgroup"), X("option"), Xend };
+    static const TAG p6[] = { X("p"), X("param"), Xend };
+    static const TAG s6[] = { X("section"), X("source"), X("summary"), Xend };
+    static const TAG t6[] = { X("table"), X("tbody"), X("td"), X("tfoot"), X("th"),
+                              X("thead"), X("title"), X("tr"), X("track"), Xend };
+    static const TAG u6[] = { X("ul"), Xend };
+    static const TAG xx[] = { Xend };
+#undef X
+
+    static const TAG* map6[26] = {
+        a6, b6, c6, d6, xx, f6, xx, h6, i6, xx, xx, l6, m6,
+        n6, o6, p6, xx, xx, s6, t6, u6, xx, xx, xx, xx, xx
+    };
+    OFF off = beg + 1;
+    int i;
+
+    /* Check for type 1: <script, <pre, or <style */
+    for(i = 0; t1[i].name != NULL; i++) {
+        if(off + t1[i].len < ctx->size) {
+            if(md_ascii_case_eq(STR(off), t1[i].name, t1[i].len))
+                return 1;
+        }
+    }
+
+    /* Check for type 2: <!-- */
+    if(off + 3 < ctx->size  &&  CH(off) == _T('!')  &&  CH(off+1) == _T('-')  &&  CH(off+2) == _T('-'))
+        return 2;
+
+    /* Check for type 3: <? */
+    if(off < ctx->size  &&  CH(off) == _T('?'))
+        return 3;
+
+    /* Check for type 4 or 5: <! */
+    if(off < ctx->size  &&  CH(off) == _T('!')) {
+        /* Check for type 4: <! followed by uppercase letter. */
+        if(off + 1 < ctx->size  &&  ISUPPER(off+1))
+            return 4;
+
+        /* Check for type 5: <![CDATA[ */
+        if(off + 8 < ctx->size) {
+            if(md_ascii_eq(STR(off), _T("![CDATA["), 8 * sizeof(CHAR)))
+                return 5;
+        }
+    }
+
+    /* Check for type 6: Many possible starting tags listed above. */
+    if(off + 1 < ctx->size  &&  (ISALPHA(off) || (CH(off) == _T('/') && ISALPHA(off+1)))) {
+        int slot;
+        const TAG* tags;
+
+        if(CH(off) == _T('/'))
+            off++;
+
+        slot = (ISUPPER(off) ? CH(off) - 'A' : CH(off) - 'a');
+        tags = map6[slot];
+
+        for(i = 0; tags[i].name != NULL; i++) {
+            if(off + tags[i].len <= ctx->size) {
+                if(md_ascii_case_eq(STR(off), tags[i].name, tags[i].len)) {
+                    OFF tmp = off + tags[i].len;
+                    if(tmp >= ctx->size)
+                        return 6;
+                    if(ISBLANK(tmp) || ISNEWLINE(tmp) || CH(tmp) == _T('>'))
+                        return 6;
+                    if(tmp+1 < ctx->size && CH(tmp) == _T('/') && CH(tmp+1) == _T('>'))
+                        return 6;
+                    break;
+                }
+            }
+        }
+    }
+
+    /* Check for type 7: any COMPLETE other opening or closing tag. */
+    if(off + 1 < ctx->size) {
+        OFF end;
+
+        if(md_is_html_tag(ctx, NULL, 0, beg, ctx->size, &end)) {
+            /* Only optional whitespace and new line may follow. */
+            while(end < ctx->size  &&  ISWHITESPACE(end))
+                end++;
+            if(end >= ctx->size  ||  ISNEWLINE(end))
+                return 7;
+        }
+    }
+
+    return FALSE;
+}
+
+/* Case sensitive check whether there is a substring 'what' between 'beg'
+ * and end of line. */
+static int
+md_line_contains(MD_CTX* ctx, OFF beg, const CHAR* what, SZ what_len, OFF* p_end)
+{
+    OFF i;
+    for(i = beg; i + what_len < ctx->size; i++) {
+        if(ISNEWLINE(i))
+            break;
+        if(memcmp(STR(i), what, what_len * sizeof(CHAR)) == 0) {
+            *p_end = i + what_len;
+            return TRUE;
+        }
+    }
+
+    *p_end = i;
+    return FALSE;
+}
+
+/* Returns type of HTML block end condition or FALSE if not an end condition.
+ *
+ * Note it fills p_end even when it is not end condition as the caller
+ * does not need to analyze contents of a raw HTML block.
+ */
+static int
+md_is_html_block_end_condition(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    switch(ctx->html_block_type) {
+        case 1:
+        {
+            OFF off = beg;
+
+            while(off < ctx->size  &&  !ISNEWLINE(off)) {
+                if(CH(off) == _T('<')) {
+                    if(md_ascii_case_eq(STR(off), _T("</script>"), 9)) {
+                        *p_end = off + 9;
+                        return TRUE;
+                    }
+
+                    if(md_ascii_case_eq(STR(off), _T("</style>"), 8)) {
+                        *p_end = off + 8;
+                        return TRUE;
+                    }
+
+                    if(md_ascii_case_eq(STR(off), _T("</pre>"), 6)) {
+                        *p_end = off + 6;
+                        return TRUE;
+                    }
+                }
+
+                off++;
+            }
+            *p_end = off;
+            return FALSE;
+        }
+
+        case 2:
+            return (md_line_contains(ctx, beg, _T("-->"), 3, p_end) ? 2 : FALSE);
+
+        case 3:
+            return (md_line_contains(ctx, beg, _T("?>"), 2, p_end) ? 3 : FALSE);
+
+        case 4:
+            return (md_line_contains(ctx, beg, _T(">"), 1, p_end) ? 4 : FALSE);
+
+        case 5:
+            return (md_line_contains(ctx, beg, _T("]]>"), 3, p_end) ? 5 : FALSE);
+
+        case 6:     /* Pass through */
+        case 7:
+            *p_end = beg;
+            return (ISNEWLINE(beg) ? ctx->html_block_type : FALSE);
+
+        default:
+            MD_UNREACHABLE();
+    }
+    return FALSE;
+}
+
+
+static int
+md_is_container_compatible(const MD_CONTAINER* pivot, const MD_CONTAINER* container)
+{
+    /* Block quote has no "items" like lists. */
+    if(container->ch == _T('>'))
+        return FALSE;
+
+    if(container->ch != pivot->ch)
+        return FALSE;
+    if(container->mark_indent > pivot->contents_indent)
+        return FALSE;
+
+    return TRUE;
+}
+
+static int
+md_push_container(MD_CTX* ctx, const MD_CONTAINER* container)
+{
+    if(ctx->n_containers >= ctx->alloc_containers) {
+        MD_CONTAINER* new_containers;
+
+        ctx->alloc_containers = (ctx->alloc_containers > 0 ? ctx->alloc_containers * 2 : 16);
+        new_containers = realloc(ctx->containers, ctx->alloc_containers * sizeof(MD_CONTAINER));
+        if(new_containers == NULL) {
+            MD_LOG("realloc() failed.");
+            return -1;
+        }
+
+        ctx->containers = new_containers;
+    }
+
+    memcpy(&ctx->containers[ctx->n_containers++], container, sizeof(MD_CONTAINER));
+    return 0;
+}
+
+static int
+md_enter_child_containers(MD_CTX* ctx, int n_children, unsigned data)
+{
+    int i;
+    int ret = 0;
+
+    for(i = ctx->n_containers - n_children; i < ctx->n_containers; i++) {
+        MD_CONTAINER* c = &ctx->containers[i];
+        int is_ordered_list = FALSE;
+
+        switch(c->ch) {
+            case _T(')'):
+            case _T('.'):
+                is_ordered_list = TRUE;
+                /* Pass through */
+
+            case _T('-'):
+            case _T('+'):
+            case _T('*'):
+                /* Remember offset in ctx->block_bytes so we can revisit the
+                 * block if we detect it is a loose list. */
+                md_end_current_block(ctx);
+                c->block_byte_off = ctx->n_block_bytes;
+
+                MD_CHECK(md_push_container_bytes(ctx,
+                                (is_ordered_list ? MD_BLOCK_OL : MD_BLOCK_UL),
+                                c->start, data, MD_BLOCK_CONTAINER_OPENER));
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                                c->task_mark_off,
+                                (c->is_task ? CH(c->task_mark_off) : 0),
+                                MD_BLOCK_CONTAINER_OPENER));
+                break;
+
+            case _T('>'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_QUOTE, 0, 0, MD_BLOCK_CONTAINER_OPENER));
+                break;
+
+            default:
+                MD_UNREACHABLE();
+                break;
+        }
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_leave_child_containers(MD_CTX* ctx, int n_keep)
+{
+    int ret = 0;
+
+    while(ctx->n_containers > n_keep) {
+        MD_CONTAINER* c = &ctx->containers[ctx->n_containers-1];
+        int is_ordered_list = FALSE;
+
+        switch(c->ch) {
+            case _T(')'):
+            case _T('.'):
+                is_ordered_list = TRUE;
+                /* Pass through */
+
+            case _T('-'):
+            case _T('+'):
+            case _T('*'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                                c->task_mark_off, (c->is_task ? CH(c->task_mark_off) : 0),
+                                MD_BLOCK_CONTAINER_CLOSER));
+                MD_CHECK(md_push_container_bytes(ctx,
+                                (is_ordered_list ? MD_BLOCK_OL : MD_BLOCK_UL), 0,
+                                c->ch, MD_BLOCK_CONTAINER_CLOSER));
+                break;
+
+            case _T('>'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_QUOTE, 0,
+                                0, MD_BLOCK_CONTAINER_CLOSER));
+                break;
+
+            default:
+                MD_UNREACHABLE();
+                break;
+        }
+
+        ctx->n_containers--;
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_is_container_mark(MD_CTX* ctx, unsigned indent, OFF beg, OFF* p_end, MD_CONTAINER* p_container)
+{
+    OFF off = beg;
+    OFF max_end;
+
+    /* Check for block quote mark. */
+    if(off < ctx->size  &&  CH(off) == _T('>')) {
+        off++;
+        p_container->ch = _T('>');
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + 1;
+        *p_end = off;
+        return TRUE;
+    }
+
+    /* Check for list item bullet mark. */
+    if(off+1 < ctx->size  &&  ISANYOF(off, _T("-+*"))  &&  (ISBLANK(off+1) || ISNEWLINE(off+1))) {
+        p_container->ch = CH(off);
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + 1;
+        *p_end = off + 1;
+        return TRUE;
+    }
+
+    /* Check for ordered list item marks. */
+    max_end = off + 9;
+    if(max_end > ctx->size)
+        max_end = ctx->size;
+    p_container->start = 0;
+    while(off < max_end  &&  ISDIGIT(off)) {
+        p_container->start = p_container->start * 10 + CH(off) - _T('0');
+        off++;
+    }
+    if(off+1 < ctx->size  &&  (CH(off) == _T('.') || CH(off) == _T(')'))   &&  (ISBLANK(off+1) || ISNEWLINE(off+1))) {
+        p_container->ch = CH(off);
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + off - beg + 1;
+        *p_end = off + 1;
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static unsigned
+md_line_indentation(MD_CTX* ctx, unsigned total_indent, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+    unsigned indent = total_indent;
+
+    while(off < ctx->size  &&  ISBLANK(off)) {
+        if(CH(off) == _T('\t'))
+            indent = (indent + 4) & ~3;
+        else
+            indent++;
+        off++;
+    }
+
+    *p_end = off;
+    return indent - total_indent;
+}
+
+static const MD_LINE_ANALYSIS md_dummy_blank_line = { MD_LINE_BLANK, 0 };
+
+/* Analyze type of the line and find some its properties. This serves as a
+ * main input for determining type and boundaries of a block. */
+static int
+md_analyze_line(MD_CTX* ctx, OFF beg, OFF* p_end,
+                const MD_LINE_ANALYSIS* pivot_line, MD_LINE_ANALYSIS* line)
+{
+    unsigned total_indent = 0;
+    int n_parents = 0;
+    int n_brothers = 0;
+    int n_children = 0;
+    MD_CONTAINER container = { 0 };
+    int prev_line_has_list_loosening_effect = ctx->last_line_has_list_loosening_effect;
+    OFF off = beg;
+    int ret = 0;
+
+    line->indent = md_line_indentation(ctx, total_indent, off, &off);
+    total_indent += line->indent;
+    line->beg = off;
+
+    /* Given the indentation and block quote marks '>', determine how many of
+     * the current containers are our parents. */
+    while(n_parents < ctx->n_containers) {
+        MD_CONTAINER* c = &ctx->containers[n_parents];
+
+        if(c->ch == _T('>')  &&  line->indent < ctx->code_indent_offset  &&
+            off < ctx->size  &&  CH(off) == _T('>'))
+        {
+            /* Block quote mark. */
+            off++;
+            total_indent++;
+            line->indent = md_line_indentation(ctx, total_indent, off, &off);
+            total_indent += line->indent;
+
+            /* The optional 1st space after '>' is part of the block quote mark. */
+            if(line->indent > 0)
+                line->indent--;
+
+            line->beg = off;
+        } else if(c->ch != _T('>')  &&  line->indent >= c->contents_indent) {
+            /* List. */
+            line->indent -= c->contents_indent;
+        } else {
+            break;
+        }
+
+        n_parents++;
+    }
+
+redo:
+    /* Check whether we are fenced code continuation. */
+    if(pivot_line->type == MD_LINE_FENCEDCODE) {
+        line->beg = off;
+
+        /* We are another MD_LINE_FENCEDCODE unless we are closing fence
+         * which we transform into MD_LINE_BLANK. */
+        if(line->indent < ctx->code_indent_offset) {
+            if(md_is_closing_code_fence(ctx, CH(pivot_line->beg), off, &off)) {
+                line->type = MD_LINE_BLANK;
+                ctx->last_line_has_list_loosening_effect = FALSE;
+                goto done;
+            }
+        }
+
+        if(off >= ctx->size  ||  ISNEWLINE(off)) {
+            /* Blank line does not need any real indentation to be nested inside
+             * a list. */
+            if(n_brothers + n_children == 0) {
+                while(n_parents < ctx->n_containers  &&  ctx->containers[n_parents].ch != _T('>'))
+                    n_parents++;
+            }
+        }
+
+        /* Change indentation accordingly to the initial code fence. */
+        if(n_parents == ctx->n_containers) {
+            if(line->indent > pivot_line->indent)
+                line->indent -= pivot_line->indent;
+            else
+                line->indent = 0;
+
+            line->type = MD_LINE_FENCEDCODE;
+            goto done;
+        }
+    }
+
+    /* Check whether we are HTML block continuation. */
+    if(pivot_line->type == MD_LINE_HTML  &&  ctx->html_block_type > 0) {
+        int html_block_type;
+
+        html_block_type = md_is_html_block_end_condition(ctx, off, &off);
+        if(html_block_type > 0) {
+            MD_ASSERT(html_block_type == ctx->html_block_type);
+
+            /* Make sure this is the last line of the block. */
+            ctx->html_block_type = 0;
+
+            /* Some end conditions serve as blank lines at the same time. */
+            if(html_block_type == 6 || html_block_type == 7) {
+                line->type = MD_LINE_BLANK;
+                line->indent = 0;
+                goto done;
+            }
+        }
+
+        if(n_parents == ctx->n_containers) {
+            line->type = MD_LINE_HTML;
+            goto done;
+        }
+    }
+
+    /* Check for blank line. */
+    if(off >= ctx->size  ||  ISNEWLINE(off)) {
+        /* Blank line does not need any real indentation to be nested inside
+         * a list. */
+        if(n_brothers + n_children == 0) {
+            while(n_parents < ctx->n_containers  &&  ctx->containers[n_parents].ch != _T('>'))
+                n_parents++;
+        }
+
+        if(pivot_line->type == MD_LINE_INDENTEDCODE  &&  n_parents == ctx->n_containers) {
+            line->type = MD_LINE_INDENTEDCODE;
+            if(line->indent > ctx->code_indent_offset)
+                line->indent -= ctx->code_indent_offset;
+            else
+                line->indent = 0;
+            ctx->last_line_has_list_loosening_effect = FALSE;
+        } else {
+            line->type = MD_LINE_BLANK;
+            ctx->last_line_has_list_loosening_effect = (n_parents > 0  &&
+                    n_brothers + n_children == 0  &&
+                    ctx->containers[n_parents-1].ch != _T('>'));
+
+#if 1
+            /* See https://github.com/mity/md4c/issues/6
+             *
+             * This ugly checking tests we are in (yet empty) list item but not
+             * its very first line (with the list item mark).
+             *
+             * If we are such blank line, then any following non-blank line
+             * which would be part of this list item actually ends the list
+             * because "a list item can begin with at most one blank line."
+             */
+            if(n_parents > 0  &&  ctx->containers[n_parents-1].ch != _T('>')  &&
+               n_brothers + n_children == 0  &&  ctx->current_block == NULL  &&
+               ctx->n_block_bytes > sizeof(MD_BLOCK))
+            {
+                MD_BLOCK* top_block = (MD_BLOCK*) ((char*)ctx->block_bytes + ctx->n_block_bytes - sizeof(MD_BLOCK));
+                if(top_block->type == MD_BLOCK_LI)
+                    ctx->last_list_item_starts_with_two_blank_lines = TRUE;
+            }
+#endif
+        }
+        goto done_on_eol;
+    } else {
+#if 1
+        /* This is 2nd half of the hack. If the flag is set (that is there
+         * were 2nd blank line at the start of the list item) and we would also
+         * belonging to such list item, then interrupt the list. */
+        ctx->last_line_has_list_loosening_effect = FALSE;
+        if(ctx->last_list_item_starts_with_two_blank_lines) {
+            if(n_parents > 0  &&  ctx->containers[n_parents-1].ch != _T('>')  &&
+               n_brothers + n_children == 0  &&  ctx->current_block == NULL  &&
+               ctx->n_block_bytes > sizeof(MD_BLOCK))
+            {
+                MD_BLOCK* top_block = (MD_BLOCK*) ((char*)ctx->block_bytes + ctx->n_block_bytes - sizeof(MD_BLOCK));
+                if(top_block->type == MD_BLOCK_LI)
+                    n_parents--;
+            }
+
+            ctx->last_list_item_starts_with_two_blank_lines = FALSE;
+        }
+#endif
+    }
+
+    /* Check whether we are Setext underline. */
+    if(line->indent < ctx->code_indent_offset  &&  pivot_line->type == MD_LINE_TEXT
+        &&  (CH(off) == _T('=') || CH(off) == _T('-'))
+        &&  (n_parents == ctx->n_containers))
+    {
+        unsigned level;
+
+        if(md_is_setext_underline(ctx, off, &off, &level)) {
+            line->type = MD_LINE_SETEXTUNDERLINE;
+            line->data = level;
+            goto done;
+        }
+    }
+
+    /* Check for thematic break line. */
+    if(line->indent < ctx->code_indent_offset  &&  ISANYOF(off, _T("-_*"))) {
+        if(md_is_hr_line(ctx, off, &off)) {
+            line->type = MD_LINE_HR;
+            goto done;
+        }
+    }
+
+    /* Check for "brother" container. I.e. whether we are another list item
+     * in already started list. */
+    if(n_parents < ctx->n_containers  &&  n_brothers + n_children == 0) {
+        OFF tmp;
+
+        if(md_is_container_mark(ctx, line->indent, off, &tmp, &container)  &&
+           md_is_container_compatible(&ctx->containers[n_parents], &container))
+        {
+            pivot_line = &md_dummy_blank_line;
+
+            off = tmp;
+
+            total_indent += container.contents_indent - container.mark_indent;
+            line->indent = md_line_indentation(ctx, total_indent, off, &off);
+            total_indent += line->indent;
+            line->beg = off;
+
+            /* Some of the following whitespace actually still belongs to the mark. */
+            if(off >= ctx->size || ISNEWLINE(off)) {
+                container.contents_indent++;
+            } else if(line->indent <= ctx->code_indent_offset) {
+                container.contents_indent += line->indent;
+                line->indent = 0;
+            } else {
+                container.contents_indent += 1;
+                line->indent--;
+            }
+
+            ctx->containers[n_parents].mark_indent = container.mark_indent;
+            ctx->containers[n_parents].contents_indent = container.contents_indent;
+
+            n_brothers++;
+            goto redo;
+        }
+    }
+
+    /* Check for indented code.
+     * Note indented code block cannot interrupt a paragraph. */
+    if(line->indent >= ctx->code_indent_offset  &&
+        (pivot_line->type == MD_LINE_BLANK || pivot_line->type == MD_LINE_INDENTEDCODE))
+    {
+        line->type = MD_LINE_INDENTEDCODE;
+        MD_ASSERT(line->indent >= ctx->code_indent_offset);
+        line->indent -= ctx->code_indent_offset;
+        line->data = 0;
+        goto done;
+    }
+
+    /* Check for start of a new container block. */
+    if(line->indent < ctx->code_indent_offset  &&
+       md_is_container_mark(ctx, line->indent, off, &off, &container))
+    {
+        if(pivot_line->type == MD_LINE_TEXT  &&  n_parents == ctx->n_containers  &&
+                    (off >= ctx->size || ISNEWLINE(off)))
+        {
+            /* Noop. List mark followed by a blank line cannot interrupt a paragraph. */
+        } else if(pivot_line->type == MD_LINE_TEXT  &&  n_parents == ctx->n_containers  &&
+                    (container.ch == _T('.') || container.ch == _T(')'))  &&  container.start != 1)
+        {
+            /* Noop. Ordered list cannot interrupt a paragraph unless the start index is 1. */
+        } else {
+            total_indent += container.contents_indent - container.mark_indent;
+            line->indent = md_line_indentation(ctx, total_indent, off, &off);
+            total_indent += line->indent;
+
+            line->beg = off;
+            line->data = container.ch;
+
+            /* Some of the following whitespace actually still belongs to the mark. */
+            if(off >= ctx->size || ISNEWLINE(off)) {
+                container.contents_indent++;
+            } else if(line->indent <= ctx->code_indent_offset) {
+                container.contents_indent += line->indent;
+                line->indent = 0;
+            } else {
+                container.contents_indent += 1;
+                line->indent--;
+            }
+
+            if(n_brothers + n_children == 0)
+                pivot_line = &md_dummy_blank_line;
+
+            if(n_children == 0)
+                MD_CHECK(md_leave_child_containers(ctx, n_parents + n_brothers));
+
+            n_children++;
+            MD_CHECK(md_push_container(ctx, &container));
+            goto redo;
+        }
+    }
+
+    /* Check whether we are table continuation. */
+    if(pivot_line->type == MD_LINE_TABLE  &&  md_is_table_row(ctx, off, &off)  &&
+       n_parents == ctx->n_containers)
+    {
+        line->type = MD_LINE_TABLE;
+        goto done;
+    }
+
+    /* Check for ATX header. */
+    if(line->indent < ctx->code_indent_offset  &&  CH(off) == _T('#')) {
+        unsigned level;
+
+        if(md_is_atxheader_line(ctx, off, &line->beg, &off, &level)) {
+            line->type = MD_LINE_ATXHEADER;
+            line->data = level;
+            goto done;
+        }
+    }
+
+    /* Check whether we are starting code fence. */
+    if(CH(off) == _T('`') || CH(off) == _T('~')) {
+        if(md_is_opening_code_fence(ctx, off, &off)) {
+            line->type = MD_LINE_FENCEDCODE;
+            line->data = 1;
+            goto done;
+        }
+    }
+
+    /* Check for start of raw HTML block. */
+    if(CH(off) == _T('<')  &&  !(ctx->parser.flags & MD_FLAG_NOHTMLBLOCKS))
+    {
+        ctx->html_block_type = md_is_html_block_start_condition(ctx, off);
+
+        /* HTML block type 7 cannot interrupt paragraph. */
+        if(ctx->html_block_type == 7  &&  pivot_line->type == MD_LINE_TEXT)
+            ctx->html_block_type = 0;
+
+        if(ctx->html_block_type > 0) {
+            /* The line itself also may immediately close the block. */
+            if(md_is_html_block_end_condition(ctx, off, &off) == ctx->html_block_type) {
+                /* Make sure this is the last line of the block. */
+                ctx->html_block_type = 0;
+            }
+
+            line->type = MD_LINE_HTML;
+            goto done;
+        }
+    }
+
+    /* Check for table underline. */
+    if((ctx->parser.flags & MD_FLAG_TABLES)  &&  pivot_line->type == MD_LINE_TEXT  &&
+       (CH(off) == _T('|') || CH(off) == _T('-') || CH(off) == _T(':'))  &&
+       n_parents == ctx->n_containers)
+    {
+        unsigned col_count;
+
+        if(ctx->current_block != NULL  &&  ctx->current_block->n_lines == 1  &&
+            md_is_table_underline(ctx, off, &off, &col_count)  &&
+            md_is_table_row(ctx, pivot_line->beg, NULL))
+        {
+            line->data = col_count;
+            line->type = MD_LINE_TABLEUNDERLINE;
+            goto done;
+        }
+    }
+
+    /* By default, we are normal text line. */
+    line->type = MD_LINE_TEXT;
+    if(pivot_line->type == MD_LINE_TEXT  &&  n_brothers + n_children == 0) {
+        /* Lazy continuation. */
+        n_parents = ctx->n_containers;
+    }
+
+    /* Check for task mark. */
+    if((ctx->parser.flags & MD_FLAG_TASKLISTS)  &&  n_brothers + n_children > 0  &&
+       ISANYOF_(ctx->containers[ctx->n_containers-1].ch, _T("-+*.)")))
+    {
+        OFF tmp = off;
+
+        while(tmp < ctx->size  &&  tmp < off + 3  &&  ISBLANK(tmp))
+            tmp++;
+        if(tmp + 2 < ctx->size  &&  CH(tmp) == _T('[')  &&
+           ISANYOF(tmp+1, _T("xX "))  &&  CH(tmp+2) == _T(']')  &&
+           (tmp + 3 == ctx->size  ||  ISBLANK(tmp+3)  ||  ISNEWLINE(tmp+3)))
+        {
+            MD_CONTAINER* task_container = (n_children > 0 ? &ctx->containers[ctx->n_containers-1] : &container);
+            task_container->is_task = TRUE;
+            task_container->task_mark_off = tmp + 1;
+            off = tmp + 3;
+            while(ISWHITESPACE(off))
+                off++;
+            line->beg = off;
+        }
+    }
+
+done:
+    /* Scan for end of the line.
+     *
+     * Note this is bottleneck of this function as we itereate over (almost)
+     * all line contents after some initial line indentation. To optimize, we
+     * try to eat multiple chars in every loop iteration.
+     *
+     * (Measured ~6% performance boost of md2html with this optimization for
+     * normal kind of input.)
+     */
+    while(off + 4 < ctx->size  &&  !ISNEWLINE(off+0)  &&  !ISNEWLINE(off+1)
+                               &&  !ISNEWLINE(off+2)  &&  !ISNEWLINE(off+3))
+        off += 4;
+    while(off < ctx->size  &&  !ISNEWLINE(off))
+        off++;
+
+done_on_eol:
+    /* Set end of the line. */
+    line->end = off;
+
+    /* But for ATX header, we should exclude the optional trailing mark. */
+    if(line->type == MD_LINE_ATXHEADER) {
+        OFF tmp = line->end;
+        while(tmp > line->beg && CH(tmp-1) == _T(' '))
+            tmp--;
+        while(tmp > line->beg && CH(tmp-1) == _T('#'))
+            tmp--;
+        if(tmp == line->beg || CH(tmp-1) == _T(' ') || (ctx->parser.flags & MD_FLAG_PERMISSIVEATXHEADERS))
+            line->end = tmp;
+    }
+
+    /* Trim trailing spaces. */
+    if(line->type != MD_LINE_INDENTEDCODE  &&  line->type != MD_LINE_FENCEDCODE) {
+        while(line->end > line->beg && CH(line->end-1) == _T(' '))
+            line->end--;
+    }
+
+    /* Eat also the new line. */
+    if(off < ctx->size && CH(off) == _T('\r'))
+        off++;
+    if(off < ctx->size && CH(off) == _T('\n'))
+        off++;
+
+    *p_end = off;
+
+    /* If we belong to a list after seeing a blank line, the list is loose. */
+    if(prev_line_has_list_loosening_effect  &&  line->type != MD_LINE_BLANK  &&  n_parents + n_brothers > 0) {
+        MD_CONTAINER* c = &ctx->containers[n_parents + n_brothers - 1];
+        if(c->ch != _T('>')) {
+            MD_BLOCK* block = (MD_BLOCK*) (((char*)ctx->block_bytes) + c->block_byte_off);
+            block->flags |= MD_BLOCK_LOOSE_LIST;
+        }
+    }
+
+    /* Leave any containers we are not part of anymore. */
+    if(n_children == 0  &&  n_parents + n_brothers < ctx->n_containers)
+        MD_CHECK(md_leave_child_containers(ctx, n_parents + n_brothers));
+
+    /* Enter any container we found a mark for. */
+    if(n_brothers > 0) {
+        MD_ASSERT(n_brothers == 1);
+        MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                    ctx->containers[n_parents].task_mark_off,
+                    (ctx->containers[n_parents].is_task ? CH(ctx->containers[n_parents].task_mark_off) : 0),
+                    MD_BLOCK_CONTAINER_CLOSER));
+        MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                    container.task_mark_off,
+                    (container.is_task ? CH(container.task_mark_off) : 0),
+                    MD_BLOCK_CONTAINER_OPENER));
+        ctx->containers[n_parents].is_task = container.is_task;
+        ctx->containers[n_parents].task_mark_off = container.task_mark_off;
+    }
+
+    if(n_children > 0)
+        MD_CHECK(md_enter_child_containers(ctx, n_children, line->data));
+
+abort:
+    return ret;
+}
+
+static int
+md_process_line(MD_CTX* ctx, const MD_LINE_ANALYSIS** p_pivot_line, const MD_LINE_ANALYSIS* line)
+{
+    const MD_LINE_ANALYSIS* pivot_line = *p_pivot_line;
+    int ret = 0;
+
+    /* Blank line ends current leaf block. */
+    if(line->type == MD_LINE_BLANK) {
+        MD_CHECK(md_end_current_block(ctx));
+        *p_pivot_line = &md_dummy_blank_line;
+        return 0;
+    }
+
+    /* Some line types form block on their own. */
+    if(line->type == MD_LINE_HR || line->type == MD_LINE_ATXHEADER) {
+        MD_CHECK(md_end_current_block(ctx));
+
+        /* Add our single-line block. */
+        MD_CHECK(md_start_new_block(ctx, line));
+        MD_CHECK(md_add_line_into_current_block(ctx, line));
+        MD_CHECK(md_end_current_block(ctx));
+        *p_pivot_line = &md_dummy_blank_line;
+        return 0;
+    }
+
+    /* MD_LINE_SETEXTUNDERLINE changes meaning of the current block and ends it. */
+    if(line->type == MD_LINE_SETEXTUNDERLINE) {
+        MD_ASSERT(ctx->current_block != NULL);
+        ctx->current_block->type = MD_BLOCK_H;
+        ctx->current_block->data = line->data;
+        MD_CHECK(md_end_current_block(ctx));
+        *p_pivot_line = &md_dummy_blank_line;
+        return 0;
+    }
+
+    /* MD_LINE_TABLEUNDERLINE changes meaning of the current block. */
+    if(line->type == MD_LINE_TABLEUNDERLINE) {
+        MD_ASSERT(ctx->current_block != NULL);
+        MD_ASSERT(ctx->current_block->n_lines == 1);
+        ctx->current_block->type = MD_BLOCK_TABLE;
+        ctx->current_block->data = line->data;
+        MD_ASSERT(pivot_line != &md_dummy_blank_line);
+        ((MD_LINE_ANALYSIS*)pivot_line)->type = MD_LINE_TABLE;
+        MD_CHECK(md_add_line_into_current_block(ctx, line));
+        return 0;
+    }
+
+    /* The current block also ends if the line has different type. */
+    if(line->type != pivot_line->type)
+        MD_CHECK(md_end_current_block(ctx));
+
+    /* The current line may start a new block. */
+    if(ctx->current_block == NULL) {
+        MD_CHECK(md_start_new_block(ctx, line));
+        *p_pivot_line = line;
+    }
+
+    /* In all other cases the line is just a continuation of the current block. */
+    MD_CHECK(md_add_line_into_current_block(ctx, line));
+
+abort:
+    return ret;
+}
+
+static int
+md_process_doc(MD_CTX *ctx)
+{
+    const MD_LINE_ANALYSIS* pivot_line = &md_dummy_blank_line;
+    MD_LINE_ANALYSIS line_buf[2];
+    MD_LINE_ANALYSIS* line = &line_buf[0];
+    OFF off = 0;
+    int ret = 0;
+
+    MD_ENTER_BLOCK(MD_BLOCK_DOC, NULL);
+
+    while(off < ctx->size) {
+        if(line == pivot_line)
+            line = (line == &line_buf[0] ? &line_buf[1] : &line_buf[0]);
+
+        MD_CHECK(md_analyze_line(ctx, off, &off, pivot_line, line));
+        MD_CHECK(md_process_line(ctx, &pivot_line, line));
+    }
+
+    md_end_current_block(ctx);
+
+    MD_CHECK(md_build_ref_def_hashtable(ctx));
+
+    /* Process all blocks. */
+    MD_CHECK(md_leave_child_containers(ctx, 0));
+    MD_CHECK(md_process_all_blocks(ctx));
+
+    MD_LEAVE_BLOCK(MD_BLOCK_DOC, NULL);
+
+abort:
+
+#if 0
+    /* Output some memory consumption statistics. */
+    {
+        char buffer[256];
+        sprintf(buffer, "Alloced %u bytes for block buffer.",
+                    (unsigned)(ctx->alloc_block_bytes));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for containers buffer.",
+                    (unsigned)(ctx->alloc_containers * sizeof(MD_CONTAINER)));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for marks buffer.",
+                    (unsigned)(ctx->alloc_marks * sizeof(MD_MARK)));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for aux. buffer.",
+                    (unsigned)(ctx->alloc_buffer * sizeof(MD_CHAR)));
+        MD_LOG(buffer);
+    }
+#endif
+
+    return ret;
+}
+
+
+/********************
+ ***  Public API  ***
+ ********************/
+
+int
+md_parse(const MD_CHAR* text, MD_SIZE size, const MD_PARSER* parser, void* userdata)
+{
+    MD_CTX ctx;
+    int i;
+    int ret;
+
+    if(parser->abi_version != 0) {
+        if(parser->debug_log != NULL)
+            parser->debug_log("Unsupported abi_version.", userdata);
+        return -1;
+    }
+
+    /* Setup context structure. */
+    memset(&ctx, 0, sizeof(MD_CTX));
+    ctx.text = text;
+    ctx.size = size;
+    memcpy(&ctx.parser, parser, sizeof(MD_PARSER));
+    ctx.userdata = userdata;
+    ctx.code_indent_offset = (ctx.parser.flags & MD_FLAG_NOINDENTEDCODEBLOCKS) ? (OFF)(-1) : 4;
+    md_build_mark_char_map(&ctx);
+
+    /* Reset all unresolved opener mark chains. */
+    for(i = 0; i < SIZEOF_ARRAY(ctx.mark_chains); i++) {
+        ctx.mark_chains[i].head = -1;
+        ctx.mark_chains[i].tail = -1;
+    }
+    ctx.unresolved_link_head = -1;
+    ctx.unresolved_link_tail = -1;
+
+    /* All the work. */
+    ret = md_process_doc(&ctx);
+
+    /* Clean-up. */
+    md_free_ref_defs(&ctx);
+    md_free_ref_def_hashtable(&ctx);
+    free(ctx.buffer);
+    free(ctx.marks);
+    free(ctx.block_bytes);
+    free(ctx.containers);
+
+    return ret;
+}
diff --git a/src/3rdparty/md4c/md4c.h b/src/3rdparty/md4c/md4c.h
new file mode 100644
index 0000000000..10cba67e95
--- /dev/null
+++ b/src/3rdparty/md4c/md4c.h
@@ -0,0 +1,359 @@
+/*
+ * MD4C: Markdown parser for C
+ * (http://github.com/mity/md4c)
+ *
+ * Copyright (c) 2016-2019 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef MD4C_MARKDOWN_H
+#define MD4C_MARKDOWN_H
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+/* Magic to support UTF-16. */
+#if defined MD4C_USE_UTF16
+    #ifdef _WIN32
+        #include <wchar.h>
+        typedef WCHAR       MD_CHAR;
+    #else
+        #error MD4C_USE_UTF16 is only supported on Windows.
+    #endif
+#else
+    typedef char            MD_CHAR;
+#endif
+
+typedef unsigned MD_SIZE;
+typedef unsigned MD_OFFSET;
+
+
+/* Block represents a part of document hierarchy structure like a paragraph
+ * or list item.
+ */
+typedef enum MD_BLOCKTYPE {
+    /* <body>...</body> */
+    MD_BLOCK_DOC = 0,
+
+    /* <blockquote>...</blockquote> */
+    MD_BLOCK_QUOTE,
+
+    /* <ul>...</ul>
+     * Detail: Structure MD_BLOCK_UL_DETAIL. */
+    MD_BLOCK_UL,
+
+    /* <ol>...</ol>
+     * Detail: Structure MD_BLOCK_OL_DETAIL. */
+    MD_BLOCK_OL,
+
+    /* <li>...</li>
+     * Detail: Structure MD_BLOCK_LI_DETAIL. */
+    MD_BLOCK_LI,
+
+    /* <hr> */
+    MD_BLOCK_HR,
+
+    /* <h1>...</h1> (for levels up to 6)
+     * Detail: Structure MD_BLOCK_H_DETAIL. */
+    MD_BLOCK_H,
+
+    /* <pre><code>...</code></pre>
+     * Note the text lines within code blocks are terminated with '\n'
+     * instead of explicit MD_TEXT_BR. */
+    MD_BLOCK_CODE,
+
+    /* Raw HTML block. This itself does not correspond to any particular HTML
+     * tag. The contents of it _is_ raw HTML source intended to be put
+     * in verbatim form to the HTML output. */
+    MD_BLOCK_HTML,
+
+    /* <p>...</p> */
+    MD_BLOCK_P,
+
+    /* <table>...</table> and its contents.
+     * Detail: Structure MD_BLOCK_TD_DETAIL (used with MD_BLOCK_TH and MD_BLOCK_TD)
+     * Note all of these are used only if extension MD_FLAG_TABLES is enabled. */
+    MD_BLOCK_TABLE,
+    MD_BLOCK_THEAD,
+    MD_BLOCK_TBODY,
+    MD_BLOCK_TR,
+    MD_BLOCK_TH,
+    MD_BLOCK_TD
+} MD_BLOCKTYPE;
+
+/* Span represents an in-line piece of a document which should be rendered with
+ * the same font, color and other attributes. A sequence of spans forms a block
+ * like paragraph or list item. */
+typedef enum MD_SPANTYPE {
+    /* <em>...</em> */
+    MD_SPAN_EM,
+
+    /* <strong>...</strong> */
+    MD_SPAN_STRONG,
+
+    /* <a href="xxx">...</a>
+     * Detail: Structure MD_SPAN_A_DETAIL. */
+    MD_SPAN_A,
+
+    /* <img src="xxx">...</a>
+     * Detail: Structure MD_SPAN_IMG_DETAIL.
+     * Note: Image text can contain nested spans and even nested images.
+     * If rendered into ALT attribute of HTML <IMG> tag, it's responsibility
+     * of the renderer to deal with it.
+     */
+    MD_SPAN_IMG,
+
+    /* <code>...</code> */
+    MD_SPAN_CODE,
+
+    /* <del>...</del>
+     * Note: Recognized only when MD_FLAG_STRIKETHROUGH is enabled.
+     */
+    MD_SPAN_DEL
+} MD_SPANTYPE;
+
+/* Text is the actual textual contents of span. */
+typedef enum MD_TEXTTYPE {
+    /* Normal text. */
+    MD_TEXT_NORMAL = 0,
+
+    /* NULL character. CommonMark requires replacing NULL character with
+     * the replacement char U+FFFD, so this allows caller to do that easily. */
+    MD_TEXT_NULLCHAR,
+
+    /* Line breaks.
+     * Note these are not sent from blocks with verbatim output (MD_BLOCK_CODE
+     * or MD_BLOCK_HTML). In such cases, '\n' is part of the text itself. */
+    MD_TEXT_BR,         /* <br> (hard break) */
+    MD_TEXT_SOFTBR,     /* '\n' in source text where it is not semantically meaningful (soft break) */
+
+    /* Entity.
+     * (a) Named entity, e.g. &nbsp; 
+     *     (Note MD4C does not have a list of known entities.
+     *     Anything matching the regexp /&[A-Za-z][A-Za-z0-9]{1,47};/ is
+     *     treated as a named entity.)
+     * (b) Numerical entity, e.g. &#1234;
+     * (c) Hexadecimal entity, e.g. &#x12AB;
+     *
+     * As MD4C is mostly encoding agnostic, application gets the verbatim
+     * entity text into the MD_RENDERER::text_callback(). */
+    MD_TEXT_ENTITY,
+
+    /* Text in a code block (inside MD_BLOCK_CODE) or inlined code (`code`).
+     * If it is inside MD_BLOCK_CODE, it includes spaces for indentation and
+     * '\n' for new lines. MD_TEXT_BR and MD_TEXT_SOFTBR are not sent for this
+     * kind of text. */
+    MD_TEXT_CODE,
+
+    /* Text is a raw HTML. If it is contents of a raw HTML block (i.e. not
+     * an inline raw HTML), then MD_TEXT_BR and MD_TEXT_SOFTBR are not used.
+     * The text contains verbatim '\n' for the new lines. */
+    MD_TEXT_HTML
+} MD_TEXTTYPE;
+
+
+/* Alignment enumeration. */
+typedef enum MD_ALIGN {
+    MD_ALIGN_DEFAULT = 0,   /* When unspecified. */
+    MD_ALIGN_LEFT,
+    MD_ALIGN_CENTER,
+    MD_ALIGN_RIGHT
+} MD_ALIGN;
+
+
+/* String attribute.
+ *
+ * This wraps strings which are outside of a normal text flow and which are
+ * propagated within various detailed structures, but which still may contain
+ * string portions of different types like e.g. entities.
+ *
+ * So, for example, lets consider an image has a title attribute string
+ * set to "foo &quot; bar". (Note the string size is 14.)
+ *
+ * Then the attribute MD_SPAN_IMG_DETAIL::title shall provide the following:
+ *  -- [0]: "foo "   (substr_types[0] == MD_TEXT_NORMAL; substr_offsets[0] == 0)
+ *  -- [1]: "&quot;" (substr_types[1] == MD_TEXT_ENTITY; substr_offsets[1] == 4)
+ *  -- [2]: " bar"   (substr_types[2] == MD_TEXT_NORMAL; substr_offsets[2] == 10)
+ *  -- [3]: (n/a)    (n/a                              ; substr_offsets[3] == 14)
+ *
+ * Note that these conditions are guaranteed:
+ *  -- substr_offsets[0] == 0
+ *  -- substr_offsets[LAST+1] == size
+ *  -- Only MD_TEXT_NORMAL, MD_TEXT_ENTITY, MD_TEXT_NULLCHAR substrings can appear.
+ */
+typedef struct MD_ATTRIBUTE {
+    const MD_CHAR* text;
+    MD_SIZE size;
+    const MD_TEXTTYPE* substr_types;
+    const MD_OFFSET* substr_offsets;
+} MD_ATTRIBUTE;
+
+
+/* Detailed info for MD_BLOCK_UL. */
+typedef struct MD_BLOCK_UL_DETAIL {
+    int is_tight;           /* Non-zero if tight list, zero if loose. */
+    MD_CHAR mark;           /* Item bullet character in MarkDown source of the list, e.g. '-', '+', '*'. */
+} MD_BLOCK_UL_DETAIL;
+
+/* Detailed info for MD_BLOCK_OL. */
+typedef struct MD_BLOCK_OL_DETAIL {
+    unsigned start;         /* Start index of the ordered list. */
+    int is_tight;           /* Non-zero if tight list, zero if loose. */
+    MD_CHAR mark_delimiter; /* Character delimiting the item marks in MarkDown source, e.g. '.' or ')' */
+} MD_BLOCK_OL_DETAIL;
+
+/* Detailed info for MD_BLOCK_LI. */
+typedef struct MD_BLOCK_LI_DETAIL {
+    int is_task;            /* Can be non-zero only with MD_FLAG_TASKLISTS */
+    MD_CHAR task_mark;      /* If is_task, then one of 'x', 'X' or ' '. Undefined otherwise. */
+    MD_OFFSET task_mark_offset;  /* If is_task, then offset in the input of the char between '[' and ']'. */
+} MD_BLOCK_LI_DETAIL;
+
+/* Detailed info for MD_BLOCK_H. */
+typedef struct MD_BLOCK_H_DETAIL {
+    unsigned level;         /* Header level (1 - 6) */
+} MD_BLOCK_H_DETAIL;
+
+/* Detailed info for MD_BLOCK_CODE. */
+typedef struct MD_BLOCK_CODE_DETAIL {
+    MD_ATTRIBUTE info;
+    MD_ATTRIBUTE lang;
+} MD_BLOCK_CODE_DETAIL;
+
+/* Detailed info for MD_BLOCK_TH and MD_BLOCK_TD. */
+typedef struct MD_BLOCK_TD_DETAIL {
+    MD_ALIGN align;
+} MD_BLOCK_TD_DETAIL;
+
+/* Detailed info for MD_SPAN_A. */
+typedef struct MD_SPAN_A_DETAIL {
+    MD_ATTRIBUTE href;
+    MD_ATTRIBUTE title;
+} MD_SPAN_A_DETAIL;
+
+/* Detailed info for MD_SPAN_IMG. */
+typedef struct MD_SPAN_IMG_DETAIL {
+    MD_ATTRIBUTE src;
+    MD_ATTRIBUTE title;
+} MD_SPAN_IMG_DETAIL;
+
+
+/* Flags specifying extensions/deviations from CommonMark specification.
+ *
+ * By default (when MD_RENDERER::flags == 0), we follow CommonMark specification.
+ * The following flags may allow some extensions or deviations from it.
+ */
+#define MD_FLAG_COLLAPSEWHITESPACE          0x0001  /* In MD_TEXT_NORMAL, collapse non-trivial whitespace into single ' ' */
+#define MD_FLAG_PERMISSIVEATXHEADERS        0x0002  /* Do not require space in ATX headers ( ###header ) */
+#define MD_FLAG_PERMISSIVEURLAUTOLINKS      0x0004  /* Recognize URLs as autolinks even without '<', '>' */
+#define MD_FLAG_PERMISSIVEEMAILAUTOLINKS    0x0008  /* Recognize e-mails as autolinks even without '<', '>' and 'mailto:' */
+#define MD_FLAG_NOINDENTEDCODEBLOCKS        0x0010  /* Disable indented code blocks. (Only fenced code works.) */
+#define MD_FLAG_NOHTMLBLOCKS                0x0020  /* Disable raw HTML blocks. */
+#define MD_FLAG_NOHTMLSPANS                 0x0040  /* Disable raw HTML (inline). */
+#define MD_FLAG_TABLES                      0x0100  /* Enable tables extension. */
+#define MD_FLAG_STRIKETHROUGH               0x0200  /* Enable strikethrough extension. */
+#define MD_FLAG_PERMISSIVEWWWAUTOLINKS      0x0400  /* Enable WWW autolinks (even without any scheme prefix, if they begin with 'www.') */
+#define MD_FLAG_TASKLISTS                   0x0800  /* Enable task list extension. */
+
+#define MD_FLAG_PERMISSIVEAUTOLINKS         (MD_FLAG_PERMISSIVEEMAILAUTOLINKS | MD_FLAG_PERMISSIVEURLAUTOLINKS | MD_FLAG_PERMISSIVEWWWAUTOLINKS)
+#define MD_FLAG_NOHTML                      (MD_FLAG_NOHTMLBLOCKS | MD_FLAG_NOHTMLSPANS)
+
+/* Convenient sets of flags corresponding to well-known Markdown dialects.
+ *
+ * Note we may only support subset of features of the referred dialect.
+ * The constant just enables those extensions which bring us as close as
+ * possible given what features we implement.
+ *
+ * ABI compatibility note: Meaning of these can change in time as new
+ * extensions, bringing the dialect closer to the original, are implemented.
+ */
+#define MD_DIALECT_COMMONMARK               0
+#define MD_DIALECT_GITHUB                   (MD_FLAG_PERMISSIVEAUTOLINKS | MD_FLAG_TABLES | MD_FLAG_STRIKETHROUGH | MD_FLAG_TASKLISTS)
+
+/* Renderer structure.
+ */
+typedef struct MD_PARSER {
+    /* Reserved. Set to zero.
+     */
+    unsigned abi_version;
+
+    /* Dialect options. Bitmask of MD_FLAG_xxxx values.
+     */
+    unsigned flags;
+
+    /* Caller-provided rendering callbacks.
+     *
+     * For some block/span types, more detailed information is provided in a
+     * type-specific structure pointed by the argument 'detail'.
+     *
+     * The last argument of all callbacks, 'userdata', is just propagated from
+     * md_parse() and is available for any use by the application.
+     *
+     * Note any strings provided to the callbacks as their arguments or as
+     * members of any detail structure are generally not zero-terminated.
+     * Application has take the respective size information into account.
+     *
+     * Callbacks may abort further parsing of the document by returning non-zero.
+     */
+    int (*enter_block)(MD_BLOCKTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+    int (*leave_block)(MD_BLOCKTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+
+    int (*enter_span)(MD_SPANTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+    int (*leave_span)(MD_SPANTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+
+    int (*text)(MD_TEXTTYPE /*type*/, const MD_CHAR* /*text*/, MD_SIZE /*size*/, void* /*userdata*/);
+
+    /* Debug callback. Optional (may be NULL).
+     *
+     * If provided and something goes wrong, this function gets called.
+     * This is intended for debugging and problem diagnosis for developers;
+     * it is not intended to provide any errors suitable for displaying to an
+     * end user.
+     */
+    void (*debug_log)(const char* /*msg*/, void* /*userdata*/);
+
+    /* Reserved. Set to NULL.
+     */
+    void (*syntax)(void);
+} MD_PARSER;
+
+
+/* For backward compatibility. Do not use in new code. */
+typedef MD_PARSER MD_RENDERER;
+
+
+/* Parse the Markdown document stored in the string 'text' of size 'size'.
+ * The renderer provides callbacks to be called during the parsing so the
+ * caller can render the document on the screen or convert the Markdown
+ * to another format.
+ *
+ * Zero is returned on success. If a runtime error occurs (e.g. a memory
+ * fails), -1 is returned. If the processing is aborted due any callback
+ * returning non-zero, md_parse() the return value of the callback is returned.
+ */
+int md_parse(const MD_CHAR* text, MD_SIZE size, const MD_PARSER* parser, void* userdata);
+
+
+#ifdef __cplusplus
+    }  /* extern "C" { */
+#endif
+
+#endif  /* MD4C_MARKDOWN_H */
diff --git a/src/3rdparty/md4c/qt_attribution.json b/src/3rdparty/md4c/qt_attribution.json
new file mode 100644
index 0000000000..9180ed69b5
--- /dev/null
+++ b/src/3rdparty/md4c/qt_attribution.json
@@ -0,0 +1,15 @@
+{
+    "Id": "md4c",
+    "Name": "MD4C",
+    "QDocModule": "qtgui",
+    "QtUsage": "Optionally used in QTextDocument if configured with textmarkdownreader.",
+
+    "Description": "A CommonMark-compliant Markdown parser.",
+    "Homepage": "https://github.com/mity/md4c",
+    "License": "MIT License",
+    "LicenseId": "MIT",
+    "LicenseFile": "LICENSE.md",
+    "Version": "0.3.0",
+    "DownloadLocation": "https://github.com/mity/md4c/releases/tag/release-0.3.0-rc",
+    "Copyright": "Copyright © 2016-2019 Martin Mitáš"
+}
diff --git a/src/3rdparty/sqlite.pri b/src/3rdparty/sqlite.pri
index 068764c726..6405beb3d0 100644
--- a/src/3rdparty/sqlite.pri
+++ b/src/3rdparty/sqlite.pri
@@ -1,5 +1,6 @@
 CONFIG(release, debug|release):DEFINES *= NDEBUG
-DEFINES += SQLITE_ENABLE_COLUMN_METADATA SQLITE_OMIT_LOAD_EXTENSION SQLITE_OMIT_COMPLETE SQLITE_ENABLE_FTS3 SQLITE_ENABLE_FTS3_PARENTHESIS SQLITE_ENABLE_FTS5 SQLITE_ENABLE_RTREE SQLITE_ENABLE_JSON1
+QT_FOR_CONFIG += core-private
+DEFINES += SQLITE_ENABLE_COLUMN_METADATA SQLITE_OMIT_COMPLETE SQLITE_ENABLE_FTS3 SQLITE_ENABLE_FTS3_PARENTHESIS SQLITE_ENABLE_FTS5 SQLITE_ENABLE_RTREE SQLITE_ENABLE_JSON1
 !contains(CONFIG, largefile):DEFINES += SQLITE_DISABLE_LFS
 qtConfig(posix_fallocate): DEFINES += HAVE_POSIX_FALLOCATE=1
 winrt {
@@ -8,6 +9,7 @@ winrt {
 }
 qnx: DEFINES += _QNX_SOURCE
 !win32:!winrt:!winphone: DEFINES += HAVE_USLEEP=1
+qtConfig(dlopen): QMAKE_USE += libdl
 integrity: QMAKE_CFLAGS += -include qplatformdefs.h
 INCLUDEPATH +=  $$PWD/sqlite
 SOURCES +=      $$PWD/sqlite/sqlite3.c
diff --git a/src/android/java/src/org/qtproject/qt5/android/bindings/QtLoader.java b/src/android/java/src/org/qtproject/qt5/android/bindings/QtLoader.java
index 9d5578ed6d..d3b0600b2f 100644
--- a/src/android/java/src/org/qtproject/qt5/android/bindings/QtLoader.java
+++ b/src/android/java/src/org/qtproject/qt5/android/bindings/QtLoader.java
@@ -159,6 +159,9 @@ public abstract class QtLoader {
     protected ComponentInfo m_contextInfo;
     private Class<?> m_delegateClass;
 
+    private static ArrayList<FileOutputStream> m_fileOutputStreams = new ArrayList<FileOutputStream>();
+    // List of open file streams associated with files copied during installation.
+
     QtLoader(ContextWrapper context, Class<?> clazz) {
         m_context = context;
         m_delegateClass = clazz;
@@ -357,7 +360,7 @@ public abstract class QtLoader {
 
         AssetManager assetsManager = m_context.getAssets();
         InputStream inputStream = null;
-        OutputStream outputStream = null;
+        FileOutputStream outputStream = null;
         try {
             inputStream = assetsManager.open(source);
             outputStream = new FileOutputStream(destinationFile);
@@ -369,8 +372,12 @@ public abstract class QtLoader {
                 inputStream.close();
 
             if (outputStream != null)
-                outputStream.close();
+                // Ensure that the buffered data is flushed to the OS for writing.
+                outputStream.flush();
         }
+        // Mark the output stream as still needing to be written to physical disk.
+        // The output stream will be closed after this sync completes.
+        m_fileOutputStreams.add(outputStream);
     }
 
     private static void createBundledBinary(String source, String destination)
@@ -388,7 +395,7 @@ public abstract class QtLoader {
         destinationFile.createNewFile();
 
         InputStream inputStream = null;
-        OutputStream outputStream = null;
+        FileOutputStream outputStream = null;
         try {
             inputStream = new FileInputStream(source);
             outputStream = new FileOutputStream(destinationFile);
@@ -400,8 +407,12 @@ public abstract class QtLoader {
                 inputStream.close();
 
             if (outputStream != null)
-                outputStream.close();
+                // Ensure that the buffered data is flushed to the OS for writing.
+                outputStream.flush();
         }
+        // Mark the output stream as still needing to be written to physical disk.
+        // The output stream will be closed after this sync completes.
+        m_fileOutputStreams.add(outputStream);
     }
 
     private boolean cleanCacheIfNecessary(String pluginsPrefix, long packageVersion)
@@ -450,27 +461,6 @@ public abstract class QtLoader {
             return;
 
         {
-            File versionFile = new File(pluginsPrefix + "cache.version");
-
-            File parentDirectory = versionFile.getParentFile();
-            if (!parentDirectory.exists())
-                parentDirectory.mkdirs();
-
-            versionFile.createNewFile();
-
-            DataOutputStream outputStream = null;
-            try {
-                outputStream = new DataOutputStream(new FileOutputStream(versionFile));
-                outputStream.writeLong(packageVersion);
-            } catch (Exception e) {
-                e.printStackTrace();
-            } finally {
-                if (outputStream != null)
-                    outputStream.close();
-            }
-        }
-
-        {
             // why can't we load the plugins directly from libs ?!?!
             String key = BUNDLED_IN_LIB_RESOURCE_ID_KEY;
             if (m_contextInfo.metaData.containsKey(key)) {
@@ -499,6 +489,66 @@ public abstract class QtLoader {
             }
 
         }
+
+        // The Java compiler must be assured that variables belonging to this parent thread will not
+        // go out of scope during the runtime of the spawned thread (since in general spawned
+        // threads can outlive their parent threads). Copy variables and declare as 'final' before
+        // passing into the spawned thread.
+        final String pluginsPrefixFinal = pluginsPrefix;
+        final long packageVersionFinal = packageVersion;
+
+        // Spawn a worker thread to write all installed files to physical disk and indicate
+        // successful installation by creating the 'cache.version' file.
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    finalizeInstallation(pluginsPrefixFinal, packageVersionFinal);
+                } catch (Exception e) {
+                    Log.e(QtApplication.QtTAG, e.getMessage());
+                    e.printStackTrace();
+                    return;
+                }
+            }
+        }).start();
+    }
+
+    private void finalizeInstallation(String pluginsPrefix, long packageVersion)
+            throws IOException
+    {
+        {
+            // Write all installed files to physical disk and close each output stream
+            for (FileOutputStream fileOutputStream : m_fileOutputStreams) {
+                fileOutputStream.getFD().sync();
+                fileOutputStream.close();
+            }
+
+            m_fileOutputStreams.clear();
+        }
+
+        {
+            // Create 'cache.version' file
+
+            File versionFile = new File(pluginsPrefix + "cache.version");
+
+            File parentDirectory = versionFile.getParentFile();
+            if (!parentDirectory.exists())
+                parentDirectory.mkdirs();
+
+            versionFile.createNewFile();
+
+            DataOutputStream outputStream = null;
+            try {
+                outputStream = new DataOutputStream(new FileOutputStream(versionFile));
+                outputStream.writeLong(packageVersion);
+            } catch (Exception e) {
+                e.printStackTrace();
+            } finally {
+                if (outputStream != null)
+                    outputStream.close();
+            }
+        }
+
     }
 
     private void deleteRecursively(File directory)
diff --git a/src/concurrent/qtconcurrentcompilertest.h b/src/concurrent/qtconcurrentcompilertest.h
index cddfd06ca1..72cf1670a0 100644
--- a/src/concurrent/qtconcurrentcompilertest.h
+++ b/src/concurrent/qtconcurrentcompilertest.h
@@ -52,7 +52,7 @@ template<class T>
 class HasResultType {
     typedef char Yes;
     typedef void *No;
-    template<typename U> static Yes test(int, const typename U::result_type * = 0);
+    template<typename U> static Yes test(int, const typename U::result_type * = nullptr);
     template<typename U> static No test(double);
 public:
     enum { Value = (sizeof(test<T>(0)) == sizeof(Yes)) };
diff --git a/src/concurrent/qtconcurrentfilterkernel.h b/src/concurrent/qtconcurrentfilterkernel.h
index 9cbea2e671..e921a3d51a 100644
--- a/src/concurrent/qtconcurrentfilterkernel.h
+++ b/src/concurrent/qtconcurrentfilterkernel.h
@@ -266,7 +266,7 @@ public:
         if (keep(*it))
             this->reportResult(&(*it), index);
         else
-            this->reportResult(0, index);
+            this->reportResult(nullptr, index);
         return false;
     }
 
diff --git a/src/concurrent/qtconcurrentfunctionwrappers.h b/src/concurrent/qtconcurrentfunctionwrappers.h
index 734bb29df1..7ba6720e03 100644
--- a/src/concurrent/qtconcurrentfunctionwrappers.h
+++ b/src/concurrent/qtconcurrentfunctionwrappers.h
@@ -225,13 +225,11 @@ struct PushBackWrapper
         return c.push_back(u);
     }
 
-#ifdef Q_COMPILER_RVALUE_REFS
     template <class C, class U>
     inline void operator()(C &c, U &&u) const
     {
         return c.push_back(u);
     }
-#endif
 };
 
 template <typename Functor, bool foo = HasResultType<Functor>::Value>
diff --git a/src/concurrent/qtconcurrentmapkernel.h b/src/concurrent/qtconcurrentmapkernel.h
index 3424124118..87fcf30cf9 100644
--- a/src/concurrent/qtconcurrentmapkernel.h
+++ b/src/concurrent/qtconcurrentmapkernel.h
@@ -74,7 +74,7 @@ public:
         Iterator it = sequenceBeginIterator;
         std::advance(it, beginIndex);
         for (int i = beginIndex; i < endIndex; ++i) {
-            runIteration(it, i, 0);
+            runIteration(it, i, nullptr);
             std::advance(it, 1);
         }
 
diff --git a/src/concurrent/qtconcurrentrun.h b/src/concurrent/qtconcurrentrun.h
index 6001010a78..22dae70460 100644
--- a/src/concurrent/qtconcurrentrun.h
+++ b/src/concurrent/qtconcurrentrun.h
@@ -99,8 +99,6 @@ QFuture<T> run(T (*functionPointer)(Param1, Param2, Param3, Param4, Param5), con
     return (new StoredFunctorCall5<T, T (*)(Param1, Param2, Param3, Param4, Param5), Arg1, Arg2, Arg3, Arg4, Arg5>(functionPointer, arg1, arg2, arg3, arg4, arg5))->start();
 }
 
-#if defined(Q_COMPILER_DECLTYPE) && defined(Q_COMPILER_AUTO_FUNCTION)
-
 template <typename Functor>
 auto run(Functor functor) -> typename std::enable_if<!QtPrivate::HasResultType<Functor>::Value, QFuture<decltype(functor())>>::type
 {
@@ -148,8 +146,6 @@ auto run(Functor functor, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3,
     return (new StoredFunctorCall5<result_type, Functor, Arg1, Arg2, Arg3, Arg4, Arg5>(functor, arg1, arg2, arg3, arg4, arg5))->start();
 }
 
-#endif
-
 template <typename FunctionObject>
 QFuture<typename FunctionObject::result_type> run(FunctionObject functionObject)
 {
@@ -370,8 +366,6 @@ QFuture<T> run(QThreadPool *pool, T (*functionPointer)(Param1, Param2, Param3, P
     return (new StoredFunctorCall5<T, T (*)(Param1, Param2, Param3, Param4, Param5), Arg1, Arg2, Arg3, Arg4, Arg5>(functionPointer, arg1, arg2, arg3, arg4, arg5))->start(pool);
 }
 
-#if defined(Q_COMPILER_DECLTYPE) && defined(Q_COMPILER_AUTO_FUNCTION)
-
 template <typename Functor>
 auto run(QThreadPool *pool, Functor functor) -> typename std::enable_if<!QtPrivate::HasResultType<Functor>::Value, QFuture<decltype(functor())>>::type
 {
@@ -419,8 +413,6 @@ auto run(QThreadPool *pool, Functor functor, const Arg1 &arg1, const Arg2 &arg2,
     return (new StoredFunctorCall5<result_type, Functor, Arg1, Arg2, Arg3, Arg4, Arg5>(functor, arg1, arg2, arg3, arg4, arg5))->start(pool);
 }
 
-#endif
-
 template <typename FunctionObject>
 QFuture<typename FunctionObject::result_type> run(QThreadPool *pool, FunctionObject functionObject)
 {
diff --git a/src/corelib/animation/qabstractanimation.cpp b/src/corelib/animation/qabstractanimation.cpp
index b507049cc4..0be37b7dca 100644
--- a/src/corelib/animation/qabstractanimation.cpp
+++ b/src/corelib/animation/qabstractanimation.cpp
@@ -152,6 +152,7 @@
 #include <QtCore/qthreadstorage.h>
 #include <QtCore/qcoreevent.h>
 #include <QtCore/qpointer.h>
+#include <QtCore/qscopedvaluerollback.h>
 
 #define DEFAULT_TIMER_INTERVAL 16
 #define PAUSE_TIMER_COARSE_THRESHOLD 2000
@@ -315,14 +316,13 @@ void QUnifiedTimer::updateAnimationTimers(qint64 currentTick)
     //* it might happen in some cases that the delta is negative because the animation driver
     //  advances faster than time.elapsed()
     if (delta > 0) {
-        insideTick = true;
+        QScopedValueRollback<bool> guard(insideTick, true);
         if (profilerCallback)
             profilerCallback(delta);
         for (currentAnimationIdx = 0; currentAnimationIdx < animationTimers.count(); ++currentAnimationIdx) {
             QAbstractAnimationTimer *animation = animationTimers.at(currentAnimationIdx);
             animation->updateAnimationsTime(delta);
         }
-        insideTick = false;
         currentAnimationIdx = 0;
     }
 }
@@ -361,10 +361,11 @@ void QUnifiedTimer::localRestart()
 
 void QUnifiedTimer::restart()
 {
-    insideRestart = true;
-    for (int i = 0; i < animationTimers.count(); ++i)
-        animationTimers.at(i)->restartAnimationTimer();
-    insideRestart = false;
+    {
+        QScopedValueRollback<bool> guard(insideRestart, true);
+        for (int i = 0; i < animationTimers.count(); ++i)
+            animationTimers.at(i)->restartAnimationTimer();
+    }
 
     localRestart();
 }
@@ -599,14 +600,13 @@ void QAnimationTimer::updateAnimationsTime(qint64 delta)
     //it might happen in some cases that the time doesn't change because events are delayed
     //when the CPU load is high
     if (delta) {
-        insideTick = true;
+        QScopedValueRollback<bool> guard(insideTick, true);
         for (currentAnimationIdx = 0; currentAnimationIdx < animations.count(); ++currentAnimationIdx) {
             QAbstractAnimation *animation = animations.at(currentAnimationIdx);
             int elapsed = QAbstractAnimationPrivate::get(animation)->totalCurrentTime
                           + (animation->direction() == QAbstractAnimation::Forward ? delta : -delta);
             animation->setCurrentTime(elapsed);
         }
-        insideTick = false;
         currentAnimationIdx = 0;
     }
 }
diff --git a/src/corelib/animation/qabstractanimation_p.h b/src/corelib/animation/qabstractanimation_p.h
index 3b6e8d6cc4..037d3be74f 100644
--- a/src/corelib/animation/qabstractanimation_p.h
+++ b/src/corelib/animation/qabstractanimation_p.h
@@ -78,7 +78,7 @@ public:
           hasRegisteredTimer(false),
           isPause(false),
           isGroup(false),
-          group(0)
+          group(nullptr)
     {
     }
 
diff --git a/src/corelib/animation/qanimationgroup_p.h b/src/corelib/animation/qanimationgroup_p.h
index ff759d11fd..215734b656 100644
--- a/src/corelib/animation/qanimationgroup_p.h
+++ b/src/corelib/animation/qanimationgroup_p.h
@@ -76,7 +76,7 @@ public:
     void disconnectUncontrolledAnimation(QAbstractAnimation *anim)
     {
         //0 for the signal here because we might be called from the animation destructor
-        QObject::disconnect(anim, 0, q_func(), SLOT(_q_uncontrolledAnimationFinished()));
+        QObject::disconnect(anim, nullptr, q_func(), SLOT(_q_uncontrolledAnimationFinished()));
     }
 
     void connectUncontrolledAnimation(QAbstractAnimation *anim)
diff --git a/src/corelib/animation/qpropertyanimation_p.h b/src/corelib/animation/qpropertyanimation_p.h
index 479762f573..cbd3ce287d 100644
--- a/src/corelib/animation/qpropertyanimation_p.h
+++ b/src/corelib/animation/qpropertyanimation_p.h
@@ -64,7 +64,7 @@ class QPropertyAnimationPrivate : public QVariantAnimationPrivate
    Q_DECLARE_PUBLIC(QPropertyAnimation)
 public:
     QPropertyAnimationPrivate()
-        : targetValue(0), propertyType(0), propertyIndex(-1)
+        : targetValue(nullptr), propertyType(0), propertyIndex(-1)
     {
     }
 
diff --git a/src/corelib/animation/qsequentialanimationgroup_p.h b/src/corelib/animation/qsequentialanimationgroup_p.h
index 88dac4f566..c082d6b524 100644
--- a/src/corelib/animation/qsequentialanimationgroup_p.h
+++ b/src/corelib/animation/qsequentialanimationgroup_p.h
@@ -63,7 +63,7 @@ class QSequentialAnimationGroupPrivate : public QAnimationGroupPrivate
     Q_DECLARE_PUBLIC(QSequentialAnimationGroup)
 public:
     QSequentialAnimationGroupPrivate()
-        : currentAnimation(0), currentAnimationIndex(-1), lastLoop(0)
+        : currentAnimation(nullptr), currentAnimationIndex(-1), lastLoop(0)
     { }
 
 
diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index b7bb3196af..a86db142f9 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -1061,7 +1061,7 @@ QString QTextDecoder::toUnicode(const char *chars, int len)
 }
 
 // in qstring.cpp:
-void qt_from_latin1(ushort *dst, const char *str, size_t size) Q_DECL_NOTHROW;
+void qt_from_latin1(ushort *dst, const char *str, size_t size) noexcept;
 
 /*! \overload
 
diff --git a/src/corelib/codecs/qtextcodec_p.h b/src/corelib/codecs/qtextcodec_p.h
index 0e449d994c..7fcf6df984 100644
--- a/src/corelib/codecs/qtextcodec_p.h
+++ b/src/corelib/codecs/qtextcodec_p.h
@@ -98,7 +98,7 @@ public:
 
     struct ConverterState {
         ConverterState(ConversionFlags f = DefaultConversion)
-            : flags(f), remainingChars(0), invalidChars(0), d(0) { state_data[0] = state_data[1] = state_data[2] = 0; }
+            : flags(f), remainingChars(0), invalidChars(0), d(nullptr) { state_data[0] = state_data[1] = state_data[2] = 0; }
         ~ConverterState() { }
         ConversionFlags flags;
         int remainingChars;
diff --git a/src/corelib/codecs/qutfcodec.cpp b/src/corelib/codecs/qutfcodec.cpp
index 643c8ee475..85736fdf02 100644
--- a/src/corelib/codecs/qutfcodec.cpp
+++ b/src/corelib/codecs/qutfcodec.cpp
@@ -54,7 +54,7 @@ static const uchar utf8bom[] = { 0xef, 0xbb, 0xbf };
 
 #if (defined(__SSE2__) && defined(QT_COMPILER_SUPPORTS_SSE2)) \
     || (defined(__ARM_NEON__) && defined(Q_PROCESSOR_ARM_64))
-static Q_ALWAYS_INLINE uint qBitScanReverse(unsigned v) Q_DECL_NOTHROW
+static Q_ALWAYS_INLINE uint qBitScanReverse(unsigned v) noexcept
 {
     uint result = qCountLeadingZeroBits(v);
     // Now Invert the result: clz will count *down* from the msb to the lsb, so the msb index is 31
@@ -504,7 +504,7 @@ QString QUtf8::convertToUnicode(const char *chars, int len)
     This function never throws.
 */
 
-QChar *QUtf8::convertToUnicode(QChar *buffer, const char *chars, int len) Q_DECL_NOTHROW
+QChar *QUtf8::convertToUnicode(QChar *buffer, const char *chars, int len) noexcept
 {
     ushort *dst = reinterpret_cast<ushort *>(buffer);
     const uchar *src = reinterpret_cast<const uchar *>(chars);
diff --git a/src/corelib/codecs/qutfcodec_p.h b/src/corelib/codecs/qutfcodec_p.h
index b24283ac5e..083e16317a 100644
--- a/src/corelib/codecs/qutfcodec_p.h
+++ b/src/corelib/codecs/qutfcodec_p.h
@@ -291,7 +291,7 @@ enum DataEndianness
 
 struct QUtf8
 {
-    static QChar *convertToUnicode(QChar *, const char *, int) Q_DECL_NOTHROW;
+    static QChar *convertToUnicode(QChar *, const char *, int) noexcept;
     static QString convertToUnicode(const char *, int);
     static QString convertToUnicode(const char *, int, QTextCodec::ConverterState *);
     static QByteArray convertFromUnicode(const QChar *, int);
diff --git a/src/corelib/configure.json b/src/corelib/configure.json
index b7eefb58c8..d24867ffa0 100644
--- a/src/corelib/configure.json
+++ b/src/corelib/configure.json
@@ -12,7 +12,7 @@
             "inotify": "boolean",
             "journald": "boolean",
             "mimetype-database": "boolean",
-            "pcre": { "type": "enum", "values": [ "qt", "system" ] },
+            "pcre": { "type": "enum", "values": [ "no", "qt", "system" ] },
             "posix-ipc": { "type": "boolean", "name": "ipc_posix" },
             "pps": { "type": "boolean", "name": "qqnx_pps" },
             "slog2": "boolean",
@@ -235,6 +235,66 @@
             "sources": [
                 "-lslog2"
             ]
+        },
+        "advapi32": {
+            "label": "advapi32",
+            "sources": [
+                "-ladvapi32"
+            ]
+        },
+        "gdi32": {
+            "label": "gdi32",
+            "sources": [
+                "-lgdi32"
+            ]
+        },
+        "kernel32": {
+            "label": "kernel32",
+            "sources": [
+                "-lkernel32"
+            ]
+        },
+        "netapi32": {
+            "label": "netapi32",
+            "sources": [
+                "-lnetapi32"
+            ]
+        },
+        "ole32": {
+            "label": "ole32",
+            "sources": [
+                "-lole32"
+            ]
+        },
+        "shell32": {
+            "label": "shell32",
+            "sources": [
+                "-lshell32"
+            ]
+        },
+        "uuid": {
+            "label": "uuid",
+            "sources": [
+                "-luuid"
+            ]
+        },
+        "user32": {
+            "label": "user32",
+            "sources": [
+                "-luser32"
+            ]
+        },
+        "winmm": {
+            "label": "winmm",
+            "sources": [
+                "-lwinmm"
+            ]
+        },
+        "ws2_32": {
+            "label": "ws2_32",
+            "sources": [
+                "-lws2_32"
+            ]
         }
     },
 
@@ -684,15 +744,18 @@
             "condition": "features.mimetype",
             "output": [ "privateFeature" ]
         },
+        "pcre2": {
+            "label": "PCRE2",
+            "disable": "input.pcre == 'no' || input.pcre == 'system'",
+            "enable": "input.pcre == 'qt'",
+            "output": [ "privateConfig" ]
+        },
         "system-pcre2": {
-            "label": "Using system PCRE2",
-            "disable": "input.pcre == 'qt'",
+            "label": "  Using system PCRE2",
+            "disable": "input.pcre == 'no' || input.pcre == 'qt'",
             "enable": "input.pcre == 'system'",
             "condition": "libs.pcre2",
-            "output": [
-                "privateFeature",
-                { "type": "privateConfig", "negative": true, "name": "pcre2" }
-            ]
+            "output": [ "privateFeature" ]
         },
         "poll_ppoll": {
             "label": "Native ppoll()",
@@ -771,6 +834,7 @@
             "label": "QRegularExpression",
             "purpose": "Provides an API to Perl-compatible regular expressions.",
             "section": "Kernel",
+            "condition": "features.system-pcre2 || features.pcre2",
             "output": [ "publicFeature", "feature" ]
         },
         "sharedmemory": {
@@ -1013,6 +1077,10 @@ If enabled, a binary dump of the Public Suffix List (http://www.publicsuffix.org
 Mozilla License) is included. The data is then also used in QNetworkCookieJar::validateCookie.",
             "section": "Utilities",
             "output": [ "publicFeature" ]
+        },
+        "win32_system_libs": {
+            "label": "Windows System Libraries",
+            "condition": "config.win32 && libs.advapi32 && libs.gdi32 && libs.kernel32 && libs.netapi32 && libs.ole32 && libs.shell32 && libs.uuid && libs.user32 && libs.winmm && libs.ws2_32"
         }
     },
 
@@ -1071,6 +1139,7 @@ Please apply the patch corresponding to your Standard Library vendor, found in
                     "args": "qqnx_pps",
                     "condition": "config.qnx"
                 },
+                "pcre2",
                 "system-pcre2"
             ]
         }
diff --git a/src/corelib/corelib.pro b/src/corelib/corelib.pro
index 4b758532e6..6babbac8f5 100644
--- a/src/corelib/corelib.pro
+++ b/src/corelib/corelib.pro
@@ -47,10 +47,8 @@ include(mimetypes/mimetypes.pri)
 include(platform/platform.pri)
 
 win32 {
-    LIBS_PRIVATE += -lws2_32
-    !winrt {
-        LIBS_PRIVATE += -lkernel32 -luser32 -lshell32 -luuid -lole32 -ladvapi32 -lwinmm
-    }
+    QMAKE_USE_PRIVATE += ws2_32
+    !winrt: QMAKE_USE_PRIVATE += advapi32 kernel32 ole32 shell32 uuid user32 winmm
 }
 
 darwin {
@@ -68,8 +66,6 @@ integrity {
 
 QMAKE_DYNAMIC_LIST_FILE = $$PWD/QtCore.dynlist
 
-contains(DEFINES,QT_EVAL):include(eval.pri)
-
 HOST_BINS = $$[QT_HOST_BINS]
 host_bins.name = host_bins
 host_bins.variable = HOST_BINS
diff --git a/src/corelib/doc/snippets/code/doc_src_qset.cpp b/src/corelib/doc/snippets/code/doc_src_qset.cpp
index 4cd84d7330..7f7cec8b45 100644
--- a/src/corelib/doc/snippets/code/doc_src_qset.cpp
+++ b/src/corelib/doc/snippets/code/doc_src_qset.cpp
@@ -133,7 +133,7 @@ QSet<QString> set;
 ...
 QSet<QString>::iterator it = qFind(set.begin(), set.end(), "Jeanette");
 if (it != set.end())
-    cout << "Found Jeanette" << endl;
+    cout << "Found Jeanette" << Qt::endl;
 //! [10]
 
 
@@ -152,7 +152,7 @@ QSet<QString> set;
 ...
 QSet<QString>::iterator it = qFind(set.begin(), set.end(), "Jeanette");
 if (it != set.constEnd())
-    cout << "Found Jeanette" << endl;
+    cout << "Found Jeanette" << Qt::endl;
 //! [12]
 
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_io_qtextstream.cpp b/src/corelib/doc/snippets/code/src_corelib_io_qtextstream.cpp
index 625c1cf9bc..c30f13df5a 100644
--- a/src/corelib/doc/snippets/code/src_corelib_io_qtextstream.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_io_qtextstream.cpp
@@ -124,12 +124,12 @@ in >> ch1 >> ch2 >> ch3;
 
 //! [8]
 QTextStream out(stdout);
-out << "Qt rocks!" << endl;
+out << "Qt rocks!" << Qt::endl;
 //! [8]
 
 
 //! [9]
-stream << '\n' << flush;
+stream << '\n' << Qt::flush;
 //! [9]
 
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp b/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
index 382b08fdb7..dfa9b670e7 100644
--- a/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
@@ -53,7 +53,7 @@ QFuture<QString> future = ...;
 
 QFuture<QString>::const_iterator i;
 for (i = future.constBegin(); i != future.constEnd(); ++i)
-    cout << *i << endl;
+    cout << *i << Qt::endl;
 //! [0]
 
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qbytearray.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qbytearray.cpp
index 32fccbefbf..ec63e64fe9 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qbytearray.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qbytearray.cpp
@@ -71,7 +71,7 @@ ba[4] = 0xca;
 //! [2]
 for (int i = 0; i < ba.size(); ++i) {
     if (ba.at(i) >= 'a' && ba.at(i) <= 'f')
-        cout << "Found character in range [a-f]" << endl;
+        cout << "Found character in range [a-f]" << Qt::endl;
 }
 //! [2]
 
@@ -88,7 +88,7 @@ x.replace(5, 3, "&");       // x == "rock & roll"
 QByteArray ba("We must be <b>bold</b>, very <b>bold</b>");
 int j = 0;
 while ((j = ba.indexOf("<b>", j)) != -1) {
-    cout << "Found <b> tag at index position " << j << endl;
+    cout << "Found <b> tag at index position " << j << Qt::endl;
     ++j;
 }
 //! [4]
@@ -126,7 +126,7 @@ QByteArray("abc").isEmpty();    // returns false
 QByteArray ba("Hello world");
 char *data = ba.data();
 while (*data) {
-    cout << "[" << *data << "]" << endl;
+    cout << "[" << *data << "]" << Qt::endl;
     ++data;
 }
 //! [8]
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qdatetime.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qdatetime.cpp
index 3ecb67a48f..a477e91548 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qdatetime.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qdatetime.cpp
@@ -128,7 +128,7 @@ qDebug("Time elapsed: %d ms", t.elapsed());
 
 //! [11]
 QDateTime now = QDateTime::currentDateTime();
-QDateTime xmas(QDate(now.date().year(), 12, 25), QTime(0, 0));
+QDateTime xmas(QDate(now.date().year(), 12, 25).startOfDay());
 qDebug("There are %d seconds to Christmas", now.secsTo(xmas));
 //! [11]
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
index a3d2dd7f9e..9813cc98d5 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
@@ -89,7 +89,7 @@ QHash<int, QWidget *> hash;
 ...
 for (int i = 0; i < 1000; ++i) {
     if (hash[i] == okButton)
-        cout << "Found button at index " << i << endl;
+        cout << "Found button at index " << i << Qt::endl;
 }
 //! [6]
 
@@ -98,7 +98,7 @@ for (int i = 0; i < 1000; ++i) {
 QHashIterator<QString, int> i(hash);
 while (i.hasNext()) {
     i.next();
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 }
 //! [7]
 
@@ -106,7 +106,7 @@ while (i.hasNext()) {
 //! [8]
 QHash<QString, int>::const_iterator i = hash.constBegin();
 while (i != hash.constEnd()) {
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
     ++i;
 }
 //! [8]
@@ -122,14 +122,14 @@ hash.insert("plenty", 2000);
 //! [10]
 QList<int> values = hash.values("plenty");
 for (int i = 0; i < values.size(); ++i)
-    cout << values.at(i) << endl;
+    cout << values.at(i) << Qt::endl;
 //! [10]
 
 
 //! [11]
 QHash<QString, int>::iterator i = hash.find("plenty");
 while (i != hash.end() && i.key() == "plenty") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [11]
@@ -139,7 +139,7 @@ while (i != hash.end() && i.key() == "plenty") {
 QHash<QString, int> hash;
 ...
 foreach (int value, hash)
-    cout << value << endl;
+    cout << value << Qt::endl;
 //! [12]
 
 
@@ -201,7 +201,7 @@ QHash<QString, int> hash;
 ...
 QHash<QString, int>::const_iterator i = hash.find("HDR");
 while (i != hash.end() && i.key() == "HDR") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [16]
@@ -216,7 +216,7 @@ hash.insert("December", 12);
 
 QHash<QString, int>::iterator i;
 for (i = hash.begin(); i != hash.end(); ++i)
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 //! [17]
 
 
@@ -274,7 +274,7 @@ hash.insert("December", 12);
 
 QHash<QString, int>::const_iterator i;
 for (i = hash.constBegin(); i != hash.constEnd(); ++i)
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 //! [23]
 
 
@@ -296,23 +296,23 @@ hash3 = hash1 + hash2;
 //! [25]
 QList<int> values = hash.values("plenty");
 for (int i = 0; i < values.size(); ++i)
-    cout << values.at(i) << endl;
+    cout << values.at(i) << Qt::endl;
 //! [25]
 
 
 //! [26]
 QMultiHash<QString, int>::iterator i = hash.find("plenty");
 while (i != hash.end() && i.key() == "plenty") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [26]
 
 //! [27]
 for (QHash<int, QString>::const_iterator it = hash.cbegin(), end = hash.cend(); it != end; ++it) {
-    cout << "The key: " << it.key() << endl
-    cout << "The value: " << it.value() << endl;
-    cout << "Also the value: " << (*it) << endl;
+    cout << "The key: " << it.key() << Qt::endl
+    cout << "The value: " << it.value() << Qt::endl;
+    cout << "Also the value: " << (*it) << Qt::endl;
 }
 //! [27]
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qlinkedlist.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qlinkedlist.cpp
index 7f743bbd25..e0d3c71dc5 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qlinkedlist.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qlinkedlist.cpp
@@ -112,7 +112,7 @@ list.append("December");
 
 QLinkedList<QString>::iterator i;
 for (i = list.begin(); i != list.end(); ++i)
-    cout << *i << endl;
+    cout << *i << Qt::endl;
 //! [7]
 
 
@@ -122,7 +122,7 @@ QLinkedList<QString> list;
 QLinkedList<QString>::iterator it = qFind(list.begin(),
                                           list.end(), "Joel");
 if (it != list.end())
-    cout << "Found Joel" << endl;
+    cout << "Found Joel" << Qt::endl;
 //! [8]
 
 
@@ -182,7 +182,7 @@ list.append("December");
 
 QLinkedList<QString>::const_iterator i;
 for (i = list.constBegin(); i != list.constEnd(); ++i)
-    cout << *i << endl;
+    cout << *i << Qt::endl;
 //! [14]
 
 
@@ -192,7 +192,7 @@ QLinkedList<QString> list;
 QLinkedList<QString>::iterator it = qFind(list.constBegin(),
                                           list.constEnd(), "Joel");
 if (it != list.constEnd())
-    cout << "Found Joel" << endl;
+    cout << "Found Joel" << Qt::endl;
 //! [15]
 
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qlistdata.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qlistdata.cpp
index 0e746cd6e6..a24e599f2f 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qlistdata.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qlistdata.cpp
@@ -73,7 +73,7 @@ if (list[0] == "Bob")
 //! [3]
 for (int i = 0; i < list.size(); ++i) {
     if (list.at(i) == "Jane")
-        cout << "Found Jane at position " << i << endl;
+        cout << "Found Jane at position " << i << Qt::endl;
 }
 //! [3]
 
@@ -89,7 +89,7 @@ while (!list.isEmpty())
 //! [5]
 int i = list.indexOf("Jane");
 if (i != -1)
-    cout << "First occurrence of Jane is at position " << i << endl;
+    cout << "First occurrence of Jane is at position " << i << Qt::endl;
 //! [5]
 
 
@@ -180,7 +180,7 @@ list.append("December");
 
 QList<QString>::iterator i;
 for (i = list.begin(); i != list.end(); ++i)
-    cout << *i << endl;
+    cout << *i << Qt::endl;
 //! [15]
 
 
@@ -213,7 +213,7 @@ list.append("December");
 
 QList<QString>::const_iterator i;
 for (i = list.constBegin(); i != list.constEnd(); ++i)
-    cout << *i << endl;
+    cout << *i << Qt::endl;
 //! [19]
 
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qmap.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qmap.cpp
index bd59758f71..506022f082 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qmap.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qmap.cpp
@@ -89,7 +89,7 @@ QMap<int, QWidget *> map;
 ...
 for (int i = 0; i < 1000; ++i) {
     if (map[i] == okButton)
-        cout << "Found button at index " << i << endl;
+        cout << "Found button at index " << i << Qt::endl;
 }
 //! [6]
 
@@ -98,7 +98,7 @@ for (int i = 0; i < 1000; ++i) {
 QMapIterator<QString, int> i(map);
 while (i.hasNext()) {
     i.next();
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 }
 //! [7]
 
@@ -106,7 +106,7 @@ while (i.hasNext()) {
 //! [8]
 QMap<QString, int>::const_iterator i = map.constBegin();
 while (i != map.constEnd()) {
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
     ++i;
 }
 //! [8]
@@ -122,14 +122,14 @@ map.insert("plenty", 2000);
 //! [10]
 QList<int> values = map.values("plenty");
 for (int i = 0; i < values.size(); ++i)
-    cout << values.at(i) << endl;
+    cout << values.at(i) << Qt::endl;
 //! [10]
 
 
 //! [11]
 QMap<QString, int>::iterator i = map.find("plenty");
 while (i != map.end() && i.key() == "plenty") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [11]
@@ -139,7 +139,7 @@ while (i != map.end() && i.key() == "plenty") {
 QMap<QString, int> map;
 ...
 foreach (int value, map)
-    cout << value << endl;
+    cout << value << Qt::endl;
 //! [12]
 
 
@@ -175,7 +175,7 @@ QMap<QString, int> map;
 ...
 QMap<QString, int>::const_iterator i = map.find("HDR");
 while (i != map.end() && i.key() == "HDR") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [14]
@@ -201,7 +201,7 @@ QMap<QString, int> map;
 QMap<QString, int>::const_iterator i = map.lowerBound("HDR");
 QMap<QString, int>::const_iterator upperBound = map.upperBound("HDR");
 while (i != upperBound) {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [16]
@@ -230,7 +230,7 @@ map.insert("December", 12);
 
 QMap<QString, int>::iterator i;
 for (i = map.begin(); i != map.end(); ++i)
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 //! [18]
 
 
@@ -288,7 +288,7 @@ map.insert("December", 12);
 
 QMap<QString, int>::const_iterator i;
 for (i = map.constBegin(); i != map.constEnd(); ++i)
-    cout << i.key() << ": " << i.value() << endl;
+    cout << i.key() << ": " << i.value() << Qt::endl;
 //! [24]
 
 
@@ -310,23 +310,23 @@ map3 = map1 + map2;
 //! [26]
 QList<int> values = map.values("plenty");
 for (int i = 0; i < values.size(); ++i)
-    cout << values.at(i) << endl;
+    cout << values.at(i) << Qt::endl;
 //! [26]
 
 
 //! [27]
 QMultiMap<QString, int>::iterator i = map.find("plenty");
 while (i != map.end() && i.key() == "plenty") {
-    cout << i.value() << endl;
+    cout << i.value() << Qt::endl;
     ++i;
 }
 //! [27]
 
 //! [keyiterator1]
 for (QMap<int, QString>::const_iterator it = map.cbegin(), end = map.cend(); it != end; ++it) {
-    cout << "The key: " << it.key() << endl
-    cout << "The value: " << it.value() << endl;
-    cout << "Also the value: " << (*it) << endl;
+    cout << "The key: " << it.key() << Qt::endl
+    cout << "The value: " << it.value() << Qt::endl;
+    cout << "Also the value: " << (*it) << Qt::endl;
 }
 //! [keyiterator1]
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qqueue.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qqueue.cpp
index b74ac31933..6046c73b0f 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qqueue.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qqueue.cpp
@@ -54,5 +54,5 @@ queue.enqueue(1);
 queue.enqueue(2);
 queue.enqueue(3);
 while (!queue.isEmpty())
-    cout << queue.dequeue() << endl;
+    cout << queue.dequeue() << Qt::endl;
 //! [0]
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qstringiterator.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qstringiterator.cpp
index 7a2b4812ef..eb09fb99e2 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qstringiterator.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qstringiterator.cpp
@@ -72,9 +72,9 @@ while (i.hasNext())
 {
 //! [2]
 QStringIterator i(u"� is the G clef");
-qDebug() << hex << i.next(); // will print 1d11e (U+1D11E, MUSICAL SYMBOL G CLEF)
-qDebug() << hex << i.next(); // will print 20 (U+0020, SPACE)
-qDebug() << hex << i.next(); // will print 69 (U+0069, LATIN SMALL LETTER I)
+qDebug() << Qt::hex << i.next(); // will print 1d11e (U+1D11E, MUSICAL SYMBOL G CLEF)
+qDebug() << Qt::hex << i.next(); // will print 20 (U+0020, SPACE)
+qDebug() << Qt::hex << i.next(); // will print 69 (U+0069, LATIN SMALL LETTER I)
 //! [2]
 }
 
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qvector.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qvector.cpp
index 1f2af4a408..a05233049f 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qvector.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qvector.cpp
@@ -73,7 +73,7 @@ if (vector[0] == "Liz")
 //! [4]
 for (int i = 0; i < vector.size(); ++i) {
     if (vector.at(i) == "Alfonso")
-        cout << "Found Alfonso at position " << i << endl;
+        cout << "Found Alfonso at position " << i << Qt::endl;
 }
 //! [4]
 
@@ -81,7 +81,7 @@ for (int i = 0; i < vector.size(); ++i) {
 //! [5]
 int i = vector.indexOf("Harumi");
 if (i != -1)
-    cout << "First occurrence of Harumi is at position " << i << endl;
+    cout << "First occurrence of Harumi is at position " << i << Qt::endl;
 //! [5]
 
 
diff --git a/src/corelib/doc/snippets/qstack/main.cpp b/src/corelib/doc/snippets/qstack/main.cpp
index af6b960e57..66823bcb59 100644
--- a/src/corelib/doc/snippets/qstack/main.cpp
+++ b/src/corelib/doc/snippets/qstack/main.cpp
@@ -60,6 +60,6 @@ int main(int argc, char *argv[])
     stack.push(2);
     stack.push(3);
     while (!stack.isEmpty())
-        cout << stack.pop() << endl;
+        cout << stack.pop() << Qt::endl;
 //! [0]
 }
diff --git a/src/corelib/doc/snippets/qstringlist/main.cpp b/src/corelib/doc/snippets/qstringlist/main.cpp
index 55c60650fe..80788ccd76 100644
--- a/src/corelib/doc/snippets/qstringlist/main.cpp
+++ b/src/corelib/doc/snippets/qstringlist/main.cpp
@@ -71,20 +71,20 @@ Widget::Widget(QWidget *parent)
 
 //! [1]
     for (int i = 0; i < fonts.size(); ++i)
-         cout << fonts.at(i).toLocal8Bit().constData() << endl;
+         cout << fonts.at(i).toLocal8Bit().constData() << Qt::endl;
 //! [1]
 
 //! [2]
     QStringListIterator javaStyleIterator(fonts);
     while (javaStyleIterator.hasNext())
-         cout << javaStyleIterator.next().toLocal8Bit().constData() << endl;
+         cout << javaStyleIterator.next().toLocal8Bit().constData() << Qt::endl;
 //! [2]
 
 //! [3]
     QStringList::const_iterator constIterator;
     for (constIterator = fonts.constBegin(); constIterator != fonts.constEnd();
            ++constIterator)
-        cout << (*constIterator).toLocal8Bit().constData() << endl;
+        cout << (*constIterator).toLocal8Bit().constData() << Qt::endl;
 //! [3]
 
 //! [4]
diff --git a/src/corelib/eval.pri b/src/corelib/eval.pri
deleted file mode 100644
index efda56b16a..0000000000
--- a/src/corelib/eval.pri
+++ /dev/null
@@ -1,4 +0,0 @@
-SOURCES += \
-        $$QT_SOURCE_TREE/src/corelib/kernel/qtcore_eval.cpp
-INCLUDEPATH += \
-    $$QT_BUILD_TREE/src/corelib/global
diff --git a/src/corelib/global/archdetect.cpp b/src/corelib/global/archdetect.cpp
index 66a5e074f6..1d00b7f5a5 100644
--- a/src/corelib/global/archdetect.cpp
+++ b/src/corelib/global/archdetect.cpp
@@ -67,6 +67,10 @@
 #  define ARCH_PROCESSOR "power"
 #elif defined(Q_PROCESSOR_POWER_64)
 #  define ARCH_PROCESSOR "power64"
+#elif defined(Q_PROCESSOR_RISCV_32)
+#  define ARCH_PROCESSOR "riscv32"
+#elif defined(Q_PROCESSOR_RISCV_64)
+#  define ARCH_PROCESSOR "riscv64"
 #elif defined(Q_PROCESSOR_S390_X)
 #  define ARCH_PROCESSOR "s390x"
 #elif defined(Q_PROCESSOR_S390)
diff --git a/src/corelib/global/global.pri b/src/corelib/global/global.pri
index 029357ff43..428c674307 100644
--- a/src/corelib/global/global.pri
+++ b/src/corelib/global/global.pri
@@ -12,7 +12,6 @@ HEADERS +=  \
         global/qendian_p.h \
         global/qnumeric_p.h \
         global/qnumeric.h \
-        global/qfloat16_p.h \
         global/qfloat16.h \
         global/qglobalstatic.h \
         global/qlibraryinfo.h \
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index 345ab9e8ad..e47f284a42 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -110,12 +110,6 @@
 #    define Q_CC_INTEL  __INTEL_COMPILER
 #  endif
 
-/* only defined for MSVC since that's the only compiler that actually optimizes for this */
-/* might get overridden further down when Q_COMPILER_NOEXCEPT is detected */
-#  ifdef __cplusplus
-#    define Q_DECL_NOTHROW  throw()
-#  endif
-
 #elif defined(__BORLANDC__) || defined(__TURBOC__)
 #  define Q_CC_BOR
 #  define Q_INLINE_TEMPLATE
@@ -1128,16 +1122,11 @@
 #ifdef Q_COMPILER_NOEXCEPT
 # define Q_DECL_NOEXCEPT noexcept
 # define Q_DECL_NOEXCEPT_EXPR(x) noexcept(x)
-# ifdef Q_DECL_NOTHROW
-#  undef Q_DECL_NOTHROW /* override with C++11 noexcept if available */
-# endif
 #else
 # define Q_DECL_NOEXCEPT
 # define Q_DECL_NOEXCEPT_EXPR(x)
 #endif
-#ifndef Q_DECL_NOTHROW
-# define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
-#endif
+#define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
 
 #if defined(Q_COMPILER_ALIGNOF)
 #  undef Q_ALIGNOF
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h
index e9fee5f23e..bd3c219968 100644
--- a/src/corelib/global/qflags.h
+++ b/src/corelib/global/qflags.h
@@ -42,9 +42,7 @@
 #ifndef QFLAGS_H
 #define QFLAGS_H
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 #include <initializer_list>
-#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -54,21 +52,21 @@ class QFlag
 {
     int i;
 public:
-    Q_DECL_CONSTEXPR inline QFlag(int value) Q_DECL_NOTHROW : i(value) {}
-    Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
+    Q_DECL_CONSTEXPR inline QFlag(int value) noexcept : i(value) {}
+    Q_DECL_CONSTEXPR inline operator int() const noexcept { return i; }
 
 #if !defined(Q_CC_MSVC)
     // Microsoft Visual Studio has buggy behavior when it comes to
     // unsigned enums: even if the enum is unsigned, the enum tags are
     // always signed
 #  if !defined(__LP64__) && !defined(Q_CLANG_QDOC)
-    Q_DECL_CONSTEXPR inline QFlag(long value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(ulong value) Q_DECL_NOTHROW : i(int(long(value))) {}
+    Q_DECL_CONSTEXPR inline QFlag(long value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(ulong value) noexcept : i(int(long(value))) {}
 #  endif
-    Q_DECL_CONSTEXPR inline QFlag(uint value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(short value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(ushort value) Q_DECL_NOTHROW : i(int(uint(value))) {}
-    Q_DECL_CONSTEXPR inline operator uint() const Q_DECL_NOTHROW { return uint(i); }
+    Q_DECL_CONSTEXPR inline QFlag(uint value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(short value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(ushort value) noexcept : i(int(uint(value))) {}
+    Q_DECL_CONSTEXPR inline operator uint() const noexcept { return uint(i); }
 #endif
 };
 Q_DECLARE_TYPEINFO(QFlag, Q_PRIMITIVE_TYPE);
@@ -77,12 +75,12 @@ class QIncompatibleFlag
 {
     int i;
 public:
-    Q_DECL_CONSTEXPR inline explicit QIncompatibleFlag(int i) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
+    Q_DECL_CONSTEXPR inline explicit QIncompatibleFlag(int i) noexcept;
+    Q_DECL_CONSTEXPR inline operator int() const noexcept { return i; }
 };
 Q_DECLARE_TYPEINFO(QIncompatibleFlag, Q_PRIMITIVE_TYPE);
 
-Q_DECL_CONSTEXPR inline QIncompatibleFlag::QIncompatibleFlag(int value) Q_DECL_NOTHROW : i(value) {}
+Q_DECL_CONSTEXPR inline QIncompatibleFlag::QIncompatibleFlag(int value) noexcept : i(value) {}
 
 
 #ifndef Q_NO_TYPESAFE_FLAGS
@@ -117,51 +115,47 @@ public:
     Q_DECL_CONSTEXPR inline QFlags(const QFlags &other);
     Q_DECL_CONSTEXPR inline QFlags &operator=(const QFlags &other);
 #endif
-    Q_DECL_CONSTEXPR inline QFlags(Enum flags) Q_DECL_NOTHROW : i(Int(flags)) {}
-    Q_DECL_CONSTEXPR inline QFlags(Zero = Q_NULLPTR) Q_DECL_NOTHROW : i(0) {}
-    Q_DECL_CONSTEXPR inline QFlags(QFlag flag) Q_DECL_NOTHROW : i(flag) {}
+    Q_DECL_CONSTEXPR inline QFlags(Enum flags) noexcept : i(Int(flags)) {}
+    Q_DECL_CONSTEXPR inline QFlags(Zero = nullptr) noexcept : i(0) {}
+    Q_DECL_CONSTEXPR inline QFlags(QFlag flag) noexcept : i(flag) {}
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-    Q_DECL_CONSTEXPR inline QFlags(std::initializer_list<Enum> flags) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline QFlags(std::initializer_list<Enum> flags) noexcept
         : i(initializer_list_helper(flags.begin(), flags.end())) {}
-#endif
 
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(int mask) Q_DECL_NOTHROW { i &= mask; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(uint mask) Q_DECL_NOTHROW { i &= mask; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(Enum mask) Q_DECL_NOTHROW { i &= Int(mask); return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(QFlags other) Q_DECL_NOTHROW { i |= other.i; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(Enum other) Q_DECL_NOTHROW { i |= Int(other); return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(QFlags other) Q_DECL_NOTHROW { i ^= other.i; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(Enum other) Q_DECL_NOTHROW { i ^= Int(other); return *this; }
-
-    Q_DECL_CONSTEXPR inline operator Int() const Q_DECL_NOTHROW { return i; }
-
-    Q_DECL_CONSTEXPR inline QFlags operator|(QFlags other) const Q_DECL_NOTHROW { return QFlags(QFlag(i | other.i)); }
-    Q_DECL_CONSTEXPR inline QFlags operator|(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i | Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator^(QFlags other) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ other.i)); }
-    Q_DECL_CONSTEXPR inline QFlags operator^(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i & Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator~() const Q_DECL_NOTHROW { return QFlags(QFlag(~i)); }
-
-    Q_DECL_CONSTEXPR inline bool operator!() const Q_DECL_NOTHROW { return !i; }
-
-    Q_DECL_CONSTEXPR inline bool testFlag(Enum flag) const Q_DECL_NOTHROW { return (i & Int(flag)) == Int(flag) && (Int(flag) != 0 || i == Int(flag) ); }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &setFlag(Enum flag, bool on = true) Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(int mask) noexcept { i &= mask; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(uint mask) noexcept { i &= mask; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(Enum mask) noexcept { i &= Int(mask); return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(QFlags other) noexcept { i |= other.i; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(Enum other) noexcept { i |= Int(other); return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(QFlags other) noexcept { i ^= other.i; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(Enum other) noexcept { i ^= Int(other); return *this; }
+
+    Q_DECL_CONSTEXPR inline operator Int() const noexcept { return i; }
+
+    Q_DECL_CONSTEXPR inline QFlags operator|(QFlags other) const noexcept { return QFlags(QFlag(i | other.i)); }
+    Q_DECL_CONSTEXPR inline QFlags operator|(Enum other) const noexcept { return QFlags(QFlag(i | Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator^(QFlags other) const noexcept { return QFlags(QFlag(i ^ other.i)); }
+    Q_DECL_CONSTEXPR inline QFlags operator^(Enum other) const noexcept { return QFlags(QFlag(i ^ Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const noexcept { return QFlags(QFlag(i & mask)); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const noexcept { return QFlags(QFlag(i & mask)); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(Enum other) const noexcept { return QFlags(QFlag(i & Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator~() const noexcept { return QFlags(QFlag(~i)); }
+
+    Q_DECL_CONSTEXPR inline bool operator!() const noexcept { return !i; }
+
+    Q_DECL_CONSTEXPR inline bool testFlag(Enum flag) const noexcept { return (i & Int(flag)) == Int(flag) && (Int(flag) != 0 || i == Int(flag) ); }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &setFlag(Enum flag, bool on = true) noexcept
     {
         return on ? (*this |= flag) : (*this &= ~Int(flag));
     }
 
 private:
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     Q_DECL_CONSTEXPR static inline Int initializer_list_helper(typename std::initializer_list<Enum>::const_iterator it,
                                                                typename std::initializer_list<Enum>::const_iterator end)
-    Q_DECL_NOTHROW
+    noexcept
     {
         return (it == end ? Int(0) : (Int(*it) | initializer_list_helper(it + 1, end)));
     }
-#endif
 
     Int i;
 };
@@ -172,13 +166,13 @@ typedef QFlags<Enum> Flags;
 #endif
 
 #define Q_DECLARE_INCOMPATIBLE_FLAGS(Flags) \
-Q_DECL_CONSTEXPR inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) noexcept \
 { return QIncompatibleFlag(int(f1) | f2); }
 
 #define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) \
-Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) noexcept \
 { return QFlags<Flags::enum_type>(f1) | f2; } \
-Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) noexcept \
 { return f2 | f1; } Q_DECLARE_INCOMPATIBLE_FLAGS(Flags)
 
 
diff --git a/src/corelib/global/qfloat16.cpp b/src/corelib/global/qfloat16.cpp
index fd608efe55..2bf6ff00c2 100644
--- a/src/corelib/global/qfloat16.cpp
+++ b/src/corelib/global/qfloat16.cpp
@@ -1,5 +1,6 @@
 /****************************************************************************
 **
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 by Southwest Research Institute (R)
 ** Contact: http://www.qt-project.org/legal
 **
@@ -37,8 +38,9 @@
 **
 ****************************************************************************/
 
-#include "qfloat16_p.h"
+#include "qfloat16.h"
 #include "private/qsimd_p.h"
+#include <cmath> // for fpclassify()'s return values
 
 QT_BEGIN_NAMESPACE
 
@@ -65,28 +67,42 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is equivalent to infinity.
+    \fn bool qIsInf(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is equivalent to infinity.
+
     \sa qIsInf
 */
-Q_REQUIRED_RESULT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW { return qt_is_inf(f); }
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is not a number (NaN).
+    \fn bool qIsNaN(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is not a number (NaN).
+
     \sa qIsNaN
 */
-Q_REQUIRED_RESULT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW { return qt_is_nan(f); }
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is a finite number.
+    \fn bool qIsFinite(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is a finite number.
+
     \sa qIsFinite
 */
-Q_REQUIRED_RESULT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW { return qt_is_finite(f); }
+
+/*!
+  \internal
+  Implements qFpClassify() for qfloat16.
+ */
+
+int qfloat16::fpClassify() const noexcept
+{
+    return isInf() ? FP_INFINITE : isNaN() ? FP_NAN
+        : !b16 ? FP_ZERO : isNormal() ? FP_NORMAL : FP_SUBNORMAL;
+}
 
 /*! \fn int qRound(qfloat16 value)
     \relates <QFloat16>
@@ -129,8 +145,8 @@ extern "C" {
 #  define f16cextern    extern
 #endif
 
-f16cextern void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW;
-f16cextern void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW;
+f16cextern void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) noexcept;
+f16cextern void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) noexcept;
 
 #undef f16cextern
 }
@@ -141,7 +157,7 @@ static inline bool hasFastF16()
     return true;
 }
 
-static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) noexcept
 {
     __fp16 *out_f16 = reinterpret_cast<__fp16 *>(out);
     qsizetype i = 0;
@@ -151,7 +167,7 @@ static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q
         out_f16[i] = __fp16(in[i]);
 }
 
-static void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW
+static void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) noexcept
 {
     const __fp16 *in_f16 = reinterpret_cast<const __fp16 *>(in);
     qsizetype i = 0;
@@ -166,12 +182,12 @@ static inline bool hasFastF16()
     return false;
 }
 
-static void qFloatToFloat16_fast(quint16 *, const float *, qsizetype) Q_DECL_NOTHROW
+static void qFloatToFloat16_fast(quint16 *, const float *, qsizetype) noexcept
 {
     Q_UNREACHABLE();
 }
 
-static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) Q_DECL_NOTHROW
+static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) noexcept
 {
     Q_UNREACHABLE();
 }
@@ -183,7 +199,7 @@ static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) Q_DECL_N
     Converts \a len floats from \a in to qfloat16 and stores them in \a out.
     Both \a in and \a out must have \a len allocated entries.
 */
-Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len) noexcept
 {
     if (hasFastF16())
         return qFloatToFloat16_fast(reinterpret_cast<quint16 *>(out), in, len);
@@ -199,7 +215,7 @@ Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len
     Converts \a len qfloat16 from \a in to floats and stores them in \a out.
     Both \a in and \a out must have \a len allocated entries.
 */
-Q_CORE_EXPORT void qFloatFromFloat16(float *out, const qfloat16 *in, qsizetype len) Q_DECL_NOTHROW
+Q_CORE_EXPORT void qFloatFromFloat16(float *out, const qfloat16 *in, qsizetype len) noexcept
 {
     if (hasFastF16())
         return qFloatFromFloat16_fast(out, reinterpret_cast<const quint16 *>(in), len);
diff --git a/src/corelib/global/qfloat16.h b/src/corelib/global/qfloat16.h
index 42cb1357f1..6f798f8b8f 100644
--- a/src/corelib/global/qfloat16.h
+++ b/src/corelib/global/qfloat16.h
@@ -1,5 +1,6 @@
 /****************************************************************************
 **
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 by Southwest Research Institute (R)
 ** Contact: http://www.qt-project.org/legal
 **
@@ -66,13 +67,37 @@ QT_BEGIN_NAMESPACE
 
 class qfloat16
 {
+    struct Wrap
+    {
+        // To let our private constructor work, without other code seeing
+        // ambiguity when constructing from int, double &c.
+        quint16 b16;
+        constexpr inline explicit Wrap(int value) : b16(value) {}
+    };
 public:
-    Q_DECL_CONSTEXPR inline qfloat16() Q_DECL_NOTHROW : b16(0) { }
-    inline qfloat16(float f) Q_DECL_NOTHROW;
-    inline operator float() const Q_DECL_NOTHROW;
-
+    constexpr inline qfloat16() noexcept : b16(0) {}
+    inline qfloat16(float f) noexcept;
+    inline operator float() const noexcept;
+
+    // Support for qIs{Inf,NaN,Finite}:
+    bool isInf() const noexcept { return ((b16 >> 8) & 0x7e) == 0x7c; }
+    bool isNaN() const noexcept { return ((b16 >> 8) & 0x7e) == 0x7e; }
+    bool isFinite() const noexcept { return ((b16 >> 8) & 0x7c) != 0x7c; }
+    Q_CORE_EXPORT int fpClassify() const noexcept;
+    // Support for std::numeric_limits<qfloat16>
+    static constexpr qfloat16 _limit_epsilon()    noexcept { return qfloat16(Wrap(0x1400)); }
+    static constexpr qfloat16 _limit_min()        noexcept { return qfloat16(Wrap(0x400)); }
+    static constexpr qfloat16 _limit_denorm_min() noexcept { return qfloat16(Wrap(1)); }
+    static constexpr qfloat16 _limit_max()        noexcept { return qfloat16(Wrap(0x7bff)); }
+    static constexpr qfloat16 _limit_lowest()     noexcept { return qfloat16(Wrap(0xfbff)); }
+    static constexpr qfloat16 _limit_infinity()   noexcept { return qfloat16(Wrap(0x7c00)); }
+    static constexpr qfloat16 _limit_quiet_NaN()  noexcept { return qfloat16(Wrap(0x7e00)); }
+    // Signalling NaN is 0x7f00
+    inline constexpr bool isNormal() const noexcept
+    { return b16 == 0 || ((b16 & 0x7c00) && (b16 & 0x7c00) != 0x7c00); }
 private:
     quint16 b16;
+    constexpr inline explicit qfloat16(Wrap nibble) noexcept : b16(nibble.b16) {}
 
     Q_CORE_EXPORT static const quint32 mantissatable[];
     Q_CORE_EXPORT static const quint32 exponenttable[];
@@ -80,27 +105,30 @@ private:
     Q_CORE_EXPORT static const quint32 basetable[];
     Q_CORE_EXPORT static const quint32 shifttable[];
 
-    friend bool qIsNull(qfloat16 f) Q_DECL_NOTHROW;
-    friend qfloat16 operator-(qfloat16 a) Q_DECL_NOTHROW;
+    friend bool qIsNull(qfloat16 f) noexcept;
+    friend qfloat16 operator-(qfloat16 a) noexcept;
 };
 
 Q_DECLARE_TYPEINFO(qfloat16, Q_PRIMITIVE_TYPE);
 
-Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *, const float *, qsizetype length) Q_DECL_NOTHROW;
-Q_CORE_EXPORT void qFloatFromFloat16(float *, const qfloat16 *, qsizetype length) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *, const float *, qsizetype length) noexcept;
+Q_CORE_EXPORT void qFloatFromFloat16(float *, const qfloat16 *, qsizetype length) noexcept;
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW;    // complements qnumeric.h
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW;    // complements qnumeric.h
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW; // complements qnumeric.h
+// Complement qnumeric.h:
+Q_REQUIRED_RESULT inline bool qIsInf(qfloat16 f) noexcept { return f.isInf(); }
+Q_REQUIRED_RESULT inline bool qIsNaN(qfloat16 f) noexcept { return f.isNaN(); }
+Q_REQUIRED_RESULT inline bool qIsFinite(qfloat16 f) noexcept { return f.isFinite(); }
+Q_REQUIRED_RESULT inline int qFpClassify(qfloat16 f) noexcept { return f.fpClassify(); }
+// Q_REQUIRED_RESULT quint32 qFloatDistance(qfloat16 a, qfloat16 b);
 
 // The remainder of these utility functions complement qglobal.h
-Q_REQUIRED_RESULT inline int qRound(qfloat16 d) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline int qRound(qfloat16 d) noexcept
 { return qRound(static_cast<float>(d)); }
 
-Q_REQUIRED_RESULT inline qint64 qRound64(qfloat16 d) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline qint64 qRound64(qfloat16 d) noexcept
 { return qRound64(static_cast<float>(d)); }
 
-Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) noexcept
 {
     float f1 = static_cast<float>(p1);
     float f2 = static_cast<float>(p2);
@@ -113,19 +141,19 @@ Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) Q_DECL_NOT
     return (qAbs(f1 - f2) * 102.5f <= qMin(qAbs(f1), qAbs(f2)));
 }
 
-Q_REQUIRED_RESULT inline bool qIsNull(qfloat16 f) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qIsNull(qfloat16 f) noexcept
 {
     return (f.b16 & static_cast<quint16>(0x7fff)) == 0;
 }
 
-inline int qIntCast(qfloat16 f) Q_DECL_NOTHROW
+inline int qIntCast(qfloat16 f) noexcept
 { return int(static_cast<float>(f)); }
 
 #ifndef Q_QDOC
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wc99-extensions")
 QT_WARNING_DISABLE_GCC("-Wold-style-cast")
-inline qfloat16::qfloat16(float f) Q_DECL_NOTHROW
+inline qfloat16::qfloat16(float f) noexcept
 {
 #if defined(QT_COMPILER_SUPPORTS_F16C) && defined(__F16C__)
     __m128 packsingle = _mm_set_ss(f);
@@ -143,7 +171,7 @@ inline qfloat16::qfloat16(float f) Q_DECL_NOTHROW
 }
 QT_WARNING_POP
 
-inline qfloat16::operator float() const Q_DECL_NOTHROW
+inline qfloat16::operator float() const noexcept
 {
 #if defined(QT_COMPILER_SUPPORTS_F16C) && defined(__F16C__)
     __m128i packhalf = _mm_cvtsi32_si128(b16);
@@ -163,23 +191,23 @@ inline qfloat16::operator float() const Q_DECL_NOTHROW
 }
 #endif
 
-inline qfloat16 operator-(qfloat16 a) Q_DECL_NOTHROW
+inline qfloat16 operator-(qfloat16 a) noexcept
 {
     qfloat16 f;
     f.b16 = a.b16 ^ quint16(0x8000);
     return f;
 }
 
-inline qfloat16 operator+(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
-inline qfloat16 operator-(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
-inline qfloat16 operator*(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
-inline qfloat16 operator/(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
+inline qfloat16 operator+(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
+inline qfloat16 operator-(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
+inline qfloat16 operator*(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
+inline qfloat16 operator/(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
 
 #define QF16_MAKE_ARITH_OP_FP(FP, OP) \
-    inline FP operator OP(qfloat16 lhs, FP rhs) Q_DECL_NOTHROW { return static_cast<FP>(lhs) OP rhs; } \
-    inline FP operator OP(FP lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<FP>(rhs); }
+    inline FP operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
+    inline FP operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
 #define QF16_MAKE_ARITH_OP_EQ_FP(FP, OP_EQ, OP) \
-    inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) Q_DECL_NOTHROW \
+    inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) noexcept \
     { lhs = qfloat16(float(static_cast<FP>(lhs) OP rhs)); return lhs; }
 #define QF16_MAKE_ARITH_OP(FP) \
     QF16_MAKE_ARITH_OP_FP(FP, +) \
@@ -197,8 +225,8 @@ QF16_MAKE_ARITH_OP(float)
 #undef QF16_MAKE_ARITH_OP_FP
 
 #define QF16_MAKE_ARITH_OP_INT(OP) \
-    inline double operator OP(qfloat16 lhs, int rhs) Q_DECL_NOTHROW { return static_cast<double>(lhs) OP rhs; } \
-    inline double operator OP(int lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<double>(rhs); }
+    inline double operator OP(qfloat16 lhs, int rhs) noexcept { return static_cast<double>(lhs) OP rhs; } \
+    inline double operator OP(int lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<double>(rhs); }
 QF16_MAKE_ARITH_OP_INT(+)
 QF16_MAKE_ARITH_OP_INT(-)
 QF16_MAKE_ARITH_OP_INT(*)
@@ -209,16 +237,16 @@ QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
 QT_WARNING_DISABLE_GCC("-Wfloat-equal")
 
-inline bool operator>(qfloat16 a, qfloat16 b)  Q_DECL_NOTHROW { return static_cast<float>(a) >  static_cast<float>(b); }
-inline bool operator<(qfloat16 a, qfloat16 b)  Q_DECL_NOTHROW { return static_cast<float>(a) <  static_cast<float>(b); }
-inline bool operator>=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) >= static_cast<float>(b); }
-inline bool operator<=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) <= static_cast<float>(b); }
-inline bool operator==(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) == static_cast<float>(b); }
-inline bool operator!=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) != static_cast<float>(b); }
+inline bool operator>(qfloat16 a, qfloat16 b)  noexcept { return static_cast<float>(a) >  static_cast<float>(b); }
+inline bool operator<(qfloat16 a, qfloat16 b)  noexcept { return static_cast<float>(a) <  static_cast<float>(b); }
+inline bool operator>=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) >= static_cast<float>(b); }
+inline bool operator<=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) <= static_cast<float>(b); }
+inline bool operator==(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) == static_cast<float>(b); }
+inline bool operator!=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) != static_cast<float>(b); }
 
 #define QF16_MAKE_BOOL_OP_FP(FP, OP) \
-    inline bool operator OP(qfloat16 lhs, FP rhs) Q_DECL_NOTHROW { return static_cast<FP>(lhs) OP rhs; } \
-    inline bool operator OP(FP lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<FP>(rhs); }
+    inline bool operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
+    inline bool operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
 #define QF16_MAKE_BOOL_OP(FP) \
     QF16_MAKE_BOOL_OP_FP(FP, <) \
     QF16_MAKE_BOOL_OP_FP(FP, >) \
@@ -233,8 +261,8 @@ QF16_MAKE_BOOL_OP(float)
 #undef QF16_MAKE_BOOL_OP_FP
 
 #define QF16_MAKE_BOOL_OP_INT(OP) \
-    inline bool operator OP(qfloat16 a, int b) Q_DECL_NOTHROW { return static_cast<float>(a) OP b; } \
-    inline bool operator OP(int a, qfloat16 b) Q_DECL_NOTHROW { return a OP static_cast<float>(b); }
+    inline bool operator OP(qfloat16 a, int b) noexcept { return static_cast<float>(a) OP b; } \
+    inline bool operator OP(int a, qfloat16 b) noexcept { return a OP static_cast<float>(b); }
 QF16_MAKE_BOOL_OP_INT(>)
 QF16_MAKE_BOOL_OP_INT(<)
 QF16_MAKE_BOOL_OP_INT(>=)
@@ -248,7 +276,7 @@ QT_WARNING_POP
 /*!
   \internal
 */
-Q_REQUIRED_RESULT inline bool qFuzzyIsNull(qfloat16 f) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qFuzzyIsNull(qfloat16 f) noexcept
 {
     return qAbs(static_cast<float>(f)) <= 0.001f;
 }
@@ -257,4 +285,55 @@ QT_END_NAMESPACE
 
 Q_DECLARE_METATYPE(qfloat16)
 
+namespace std {
+template<>
+class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
+{
+public:
+    /*
+      Treat quint16 b16 as if it were:
+      uint S: 1; // b16 >> 15 (sign)
+      uint E: 5; // (b16 >> 10) & 0x1f (offset exponent)
+      uint M: 10; // b16 & 0x3ff (adjusted mantissa)
+
+      for E == 0: magnitude is M / 2.^{24}
+      for 0 < E < 31: magnitude is (1. + M / 2.^{10}) * 2.^{E - 15)
+      for E == 31: not finite
+     */
+    static constexpr int digits = 11;
+    static constexpr int min_exponent = -13;
+    static constexpr int max_exponent = 16;
+
+    static constexpr int digits10 = 3;
+    static constexpr int max_digits10 = 5;
+    static constexpr int min_exponent10 = -4;
+    static constexpr int max_exponent10 = 4;
+
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) epsilon()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_epsilon(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) (min)()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_min(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) denorm_min()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_denorm_min(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) (max)()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_max(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) lowest()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_lowest(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) infinity()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_infinity(); }
+    static constexpr QT_PREPEND_NAMESPACE(qfloat16) quiet_NaN()
+    { return QT_PREPEND_NAMESPACE(qfloat16)::_limit_quiet_NaN(); }
+};
+
+template<> class numeric_limits<const QT_PREPEND_NAMESPACE(qfloat16)>
+    : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
+template<> class numeric_limits<volatile QT_PREPEND_NAMESPACE(qfloat16)>
+    : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
+template<> class numeric_limits<const volatile QT_PREPEND_NAMESPACE(qfloat16)>
+    : public numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> {};
+
+// Adding overloads to std isn't allowed, so we can't extend this to support
+// for fpclassify(), isnormal() &c. (which, furthermore, are macros on MinGW).
+} // namespace std
+
 #endif // QFLOAT16_H
diff --git a/src/corelib/global/qfloat16_f16c.c b/src/corelib/global/qfloat16_f16c.c
index a7eadc71b7..ba1e16f481 100644
--- a/src/corelib/global/qfloat16_f16c.c
+++ b/src/corelib/global/qfloat16_f16c.c
@@ -54,7 +54,7 @@ extern "C" {
 #endif
 
 QT_FUNCTION_TARGET(F16C)
-void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOEXCEPT
 {
     qsizetype i = 0;
     int epilog_i;
@@ -70,7 +70,7 @@ void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_N
 }
 
 QT_FUNCTION_TARGET(F16C)
-void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW
+void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOEXCEPT
 {
     qsizetype i = 0;
     int epilog_i;
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index 51c9f139cb..88a61562cb 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -1147,12 +1147,12 @@ Q_STATIC_ASSERT((std::is_same<qsizetype, qptrdiff>::value));
     \sa QT_VERSION_STR, QLibraryInfo::version()
 */
 
-const char *qVersion() Q_DECL_NOTHROW
+const char *qVersion() noexcept
 {
     return QT_VERSION_STR;
 }
 
-bool qSharedBuild() Q_DECL_NOTHROW
+bool qSharedBuild() noexcept
 {
 #ifdef QT_SHARED
     return true;
@@ -1891,6 +1891,42 @@ bool qSharedBuild() Q_DECL_NOTHROW
 */
 
 /*!
+    \macro Q_PROCESSOR_RISCV
+    \relates <QtGlobal>
+    \since 5.13
+
+    Defined if the application is compiled for RISC-V processors. Qt currently
+    supports two RISC-V variants: \l Q_PROCESSOR_RISCV_32 and \l
+    Q_PROCESSOR_RISCV_64.
+
+    \sa QSysInfo::buildCpuArchitecture()
+*/
+
+/*!
+    \macro Q_PROCESSOR_RISCV_32
+    \relates <QtGlobal>
+    \since 5.13
+
+    Defined if the application is compiled for 32-bit RISC-V processors. The \l
+    Q_PROCESSOR_RISCV macro is also defined when Q_PROCESSOR_RISCV_32 is
+    defined.
+
+    \sa QSysInfo::buildCpuArchitecture()
+*/
+
+/*!
+    \macro Q_PROCESSOR_RISCV_64
+    \relates <QtGlobal>
+    \since 5.13
+
+    Defined if the application is compiled for 64-bit RISC-V processors. The \l
+    Q_PROCESSOR_RISCV macro is also defined when Q_PROCESSOR_RISCV_64 is
+    defined.
+
+    \sa QSysInfo::buildCpuArchitecture()
+*/
+
+/*!
     \macro Q_PROCESSOR_S390
     \relates <QtGlobal>
 
@@ -3213,7 +3249,7 @@ QByteArray QSysInfo::bootUniqueId()
     The Q_CHECK_PTR macro calls this function if an allocation check
     fails.
 */
-void qt_check_pointer(const char *n, int l) Q_DECL_NOTHROW
+void qt_check_pointer(const char *n, int l) noexcept
 {
     // make separate printing calls so that the first one may flush;
     // the second one could want to allocate memory (fputs prints a
@@ -3240,7 +3276,7 @@ void qBadAlloc()
    Allows you to call std::terminate() without including <exception>.
    Called internally from QT_TERMINATE_ON_EXCEPTION
 */
-Q_NORETURN void qTerminate() Q_DECL_NOTHROW
+Q_NORETURN void qTerminate() noexcept
 {
     std::terminate();
 }
@@ -3249,7 +3285,7 @@ Q_NORETURN void qTerminate() Q_DECL_NOTHROW
 /*
   The Q_ASSERT macro calls this function when the test fails.
 */
-void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW
+void qt_assert(const char *assertion, const char *file, int line) noexcept
 {
     QMessageLogger(file, line, nullptr).fatal("ASSERT: \"%s\" in file %s, line %d", assertion, file, line);
 }
@@ -3257,7 +3293,7 @@ void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW
 /*
   The Q_ASSERT_X macro calls this function when the test fails.
 */
-void qt_assert_x(const char *where, const char *what, const char *file, int line) Q_DECL_NOTHROW
+void qt_assert_x(const char *where, const char *what, const char *file, int line) noexcept
 {
     QMessageLogger(file, line, nullptr).fatal("ASSERT failure in %s: \"%s\", file %s, line %d", where, what, file, line);
 }
@@ -3464,7 +3500,7 @@ QString qEnvironmentVariable(const char *varName)
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsSet()
 */
-bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT
+bool qEnvironmentVariableIsEmpty(const char *varName) noexcept
 {
     QMutexLocker locker(&environmentMutex);
 #ifdef Q_CC_MSVC
@@ -3499,7 +3535,7 @@ bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsSet()
 */
-int qEnvironmentVariableIntValue(const char *varName, bool *ok) Q_DECL_NOEXCEPT
+int qEnvironmentVariableIntValue(const char *varName, bool *ok) noexcept
 {
     static const int NumBinaryDigitsPerOctalDigit = 3;
     static const int MaxDigitsForOctalInt =
@@ -3568,7 +3604,7 @@ int qEnvironmentVariableIntValue(const char *varName, bool *ok) Q_DECL_NOEXCEPT
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsEmpty()
 */
-bool qEnvironmentVariableIsSet(const char *varName) Q_DECL_NOEXCEPT
+bool qEnvironmentVariableIsSet(const char *varName) noexcept
 {
     QMutexLocker locker(&environmentMutex);
 #ifdef Q_CC_MSVC
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 223ebbcabe..0a0c434a07 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -307,6 +307,14 @@ typedef double qreal;
 #  define QT_DEPRECATED_CONSTRUCTOR
 #endif
 
+#ifndef QT_DEPRECATED_WARNINGS_SINCE
+# ifdef QT_DISABLE_DEPRECATED_BEFORE
+#  define QT_DEPRECATED_WARNINGS_SINCE QT_DISABLE_DEPRECATED_BEFORE
+# else
+#  define QT_DEPRECATED_WARNINGS_SINCE QT_VERSION
+# endif
+#endif
+
 #ifndef QT_DISABLE_DEPRECATED_BEFORE
 #define QT_DISABLE_DEPRECATED_BEFORE QT_VERSION_CHECK(5, 0, 0)
 #endif
@@ -330,6 +338,51 @@ typedef double qreal;
 #endif
 
 /*
+  QT_DEPRECATED_VERSION(major, minor) and QT_DEPRECATED_VERSION_X(major, minor, text)
+  outputs a deprecation warning if QT_DEPRECATED_WARNINGS_SINCE is equal or greater
+  than the version specified as major, minor. This makes it possible to deprecate a
+  function without annoying a user who needs to stick at a specified minimum version
+  and therefore can't use the new function.
+*/
+#if QT_DEPRECATED_WARNINGS_SINCE >= QT_VERSION_CHECK(5, 12, 0)
+# define QT_DEPRECATED_VERSION_X_5_12(text) QT_DEPRECATED_X(text)
+# define QT_DEPRECATED_VERSION_5_12         QT_DEPRECATED
+#else
+# define QT_DEPRECATED_VERSION_X_5_12(text)
+# define QT_DEPRECATED_VERSION_5_12
+#endif
+
+#if QT_DEPRECATED_WARNINGS_SINCE >= QT_VERSION_CHECK(5, 13, 0)
+# define QT_DEPRECATED_VERSION_X_5_13(text) QT_DEPRECATED_X(text)
+# define QT_DEPRECATED_VERSION_5_13         QT_DEPRECATED
+#else
+# define QT_DEPRECATED_VERSION_X_5_13(text)
+# define QT_DEPRECATED_VERSION_5_13
+#endif
+
+#if QT_DEPRECATED_WARNINGS_SINCE >= QT_VERSION_CHECK(5, 14, 0)
+# define QT_DEPRECATED_VERSION_X_5_14(text) QT_DEPRECATED_X(text)
+# define QT_DEPRECATED_VERSION_5_14         QT_DEPRECATED
+#else
+# define QT_DEPRECATED_VERSION_X_5_14(text)
+# define QT_DEPRECATED_VERSION_5_14
+#endif
+
+#if QT_DEPRECATED_WARNINGS_SINCE >= QT_VERSION_CHECK(5, 15, 0)
+# define QT_DEPRECATED_VERSION_X_5_15(text) QT_DEPRECATED_X(text)
+# define QT_DEPRECATED_VERSION_5_15         QT_DEPRECATED
+#else
+# define QT_DEPRECATED_VERSION_X_5_15(text)
+# define QT_DEPRECATED_VERSION_5_15
+#endif
+
+#define QT_DEPRECATED_VERSION_X_5(minor, text)      QT_DEPRECATED_VERSION_X_5_##minor(text)
+#define QT_DEPRECATED_VERSION_X(major, minor, text) QT_DEPRECATED_VERSION_X_##major(minor, text)
+
+#define QT_DEPRECATED_VERSION_5(minor)      QT_DEPRECATED_VERSION_5_##minor()
+#define QT_DEPRECATED_VERSION(major, minor) QT_DEPRECATED_VERSION_##major(minor)
+
+/*
    The Qt modules' export macros.
    The options are:
     - defined(QT_STATIC): Qt was built or is being built in static mode
@@ -369,8 +422,8 @@ typedef double qreal;
    operator to disable copying (the compiler gives an error message).
 */
 #define Q_DISABLE_COPY(Class) \
-    Class(const Class &) Q_DECL_EQ_DELETE;\
-    Class &operator=(const Class &) Q_DECL_EQ_DELETE;
+    Class(const Class &) = delete;\
+    Class &operator=(const Class &) = delete;
 
 #define Q_DISABLE_MOVE(Class) \
     Class(Class &&) = delete; \
@@ -411,7 +464,7 @@ typedef double qreal;
 #if !defined(QT_NAMESPACE) && defined(__cplusplus) && !defined(Q_QDOC)
 extern "C"
 #endif
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION const char *qVersion(void) Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION const char *qVersion(void) Q_DECL_NOEXCEPT;
 
 #if defined(__cplusplus)
 
@@ -456,11 +509,8 @@ namespace QtPrivate {
 
     template <class T> struct AlignOf : AlignOf_Default<T> { };
     template <class T> struct AlignOf<T &> : AlignOf<T> {};
-    template <size_t N, class T> struct AlignOf<T[N]> : AlignOf<T> {};
-
-#ifdef Q_COMPILER_RVALUE_REFS
     template <class T> struct AlignOf<T &&> : AlignOf<T> {};
-#endif
+    template <size_t N, class T> struct AlignOf<T[N]> : AlignOf<T> {};
 
 #if defined(Q_PROCESSOR_X86_32) && !defined(Q_OS_WIN)
     template <class T> struct AlignOf_WorkaroundForI386Abi { enum { Value = sizeof(T) }; };
@@ -730,7 +780,7 @@ inline void qt_noop(void) {}
 #  define QT_CATCH(A) catch (A)
 #  define QT_THROW(A) throw A
 #  define QT_RETHROW throw
-Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() Q_DECL_NOTHROW;
+Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() noexcept;
 #  ifdef Q_COMPILER_NOEXCEPT
 #    define QT_TERMINATE_ON_EXCEPTION(expr) do { expr; } while (false)
 #  else
@@ -738,7 +788,7 @@ Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() Q_DECL_NOTHROW;
 #  endif
 #endif
 
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qSharedBuild() Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qSharedBuild() noexcept;
 
 #ifndef Q_OUTOFLINE_TEMPLATE
 #  define Q_OUTOFLINE_TEMPLATE
@@ -781,7 +831,7 @@ Q_CORE_EXPORT QString qt_error_string(int errorCode = -1);
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
-Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line) noexcept;
 
 #if !defined(Q_ASSERT)
 #  if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
@@ -799,7 +849,7 @@ Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line)
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
-Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *file, int line) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *file, int line) noexcept;
 
 #if !defined(Q_ASSERT_X)
 #  if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
@@ -809,7 +859,7 @@ Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *
 #  endif
 #endif
 
-Q_NORETURN Q_CORE_EXPORT void qt_check_pointer(const char *, int) Q_DECL_NOTHROW;
+Q_NORETURN Q_CORE_EXPORT void qt_check_pointer(const char *, int) noexcept;
 Q_DECL_COLD_FUNCTION
 Q_CORE_EXPORT void qBadAlloc();
 
@@ -852,38 +902,23 @@ Q_REQUIRED_RESULT Q_DECL_CONSTEXPR static inline Q_DECL_UNUSED  bool qFuzzyIsNul
     return qAbs(f) <= 0.00001f;
 }
 
-/*
-   This function tests a double for a null value. It doesn't
-   check whether the actual value is 0 or close to 0, but whether
-   it is binary 0, disregarding sign.
-*/
-Q_REQUIRED_RESULT static inline Q_DECL_UNUSED bool qIsNull(double d)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
+QT_WARNING_DISABLE_GCC("-Wfloat-equal")
+QT_WARNING_DISABLE_INTEL(1572)
+
+Q_REQUIRED_RESULT Q_DECL_CONSTEXPR static inline Q_DECL_UNUSED bool qIsNull(double d) noexcept
 {
-    union U {
-        double d;
-        quint64 u;
-    };
-    U val;
-    val.d = d;
-    return (val.u & Q_UINT64_C(0x7fffffffffffffff)) == 0;
+    return d == 0.0;
 }
 
-/*
-   This function tests a float for a null value. It doesn't
-   check whether the actual value is 0 or close to 0, but whether
-   it is binary 0, disregarding sign.
-*/
-Q_REQUIRED_RESULT static inline Q_DECL_UNUSED bool qIsNull(float f)
+Q_REQUIRED_RESULT Q_DECL_CONSTEXPR static inline Q_DECL_UNUSED bool qIsNull(float f) noexcept
 {
-    union U {
-        float f;
-        quint32 u;
-    };
-    U val;
-    val.f = f;
-    return (val.u & 0x7fffffff) == 0;
+    return f == 0.0f;
 }
 
+QT_WARNING_POP
+
 /*
    Compilers which follow outdated template instantiation rules
    require a class to have a comparison operator to exist when
@@ -910,14 +945,14 @@ namespace SwapExceptionTester { // insulate users from the "using std::swap" bel
     using std::swap; // import std::swap
     template <typename T>
     void checkSwap(T &t)
-        Q_DECL_NOEXCEPT_EXPR(noexcept(swap(t, t)));
+        noexcept(noexcept(swap(t, t)));
     // declared, but not implemented (only to be used in unevaluated contexts (noexcept operator))
 }
 } // namespace QtPrivate
 
 template <typename T>
 inline void qSwap(T &value1, T &value2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(QtPrivate::SwapExceptionTester::checkSwap(value1)))
+    noexcept(noexcept(QtPrivate::SwapExceptionTester::checkSwap(value1)))
 {
     using std::swap;
     swap(value1, value2);
@@ -968,10 +1003,10 @@ QT_WARNING_DISABLE_MSVC(4530) /* C++ exception handler used, but unwind semantic
 
 // this adds const to non-const objects (like std::as_const)
 template <typename T>
-Q_DECL_CONSTEXPR typename std::add_const<T>::type &qAsConst(T &t) Q_DECL_NOTHROW { return t; }
+Q_DECL_CONSTEXPR typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
 // prevent rvalue arguments:
 template <typename T>
-void qAsConst(const T &&) Q_DECL_EQ_DELETE;
+void qAsConst(const T &&) = delete;
 
 #ifndef QT_NO_FOREACH
 
@@ -1130,11 +1165,11 @@ template <typename... Args>
 struct QNonConstOverload
 {
     template <typename R, typename T>
-    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R, typename T>
-    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...)) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...)) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1142,11 +1177,11 @@ template <typename... Args>
 struct QConstOverload
 {
     template <typename R, typename T>
-    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R, typename T>
-    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...) const) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...) const) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1159,11 +1194,11 @@ struct QOverload : QConstOverload<Args...>, QNonConstOverload<Args...>
     using QNonConstOverload<Args...>::operator();
 
     template <typename R>
-    Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R>
-    static Q_DECL_CONSTEXPR auto of(R (*ptr)(Args...)) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (*ptr)(Args...)) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1184,9 +1219,9 @@ Q_CORE_EXPORT QString qEnvironmentVariable(const char *varName, const QString &d
 Q_CORE_EXPORT bool qputenv(const char *varName, const QByteArray& value);
 Q_CORE_EXPORT bool qunsetenv(const char *varName);
 
-Q_CORE_EXPORT bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT;
-Q_CORE_EXPORT bool qEnvironmentVariableIsSet(const char *varName) Q_DECL_NOEXCEPT;
-Q_CORE_EXPORT int  qEnvironmentVariableIntValue(const char *varName, bool *ok=nullptr) Q_DECL_NOEXCEPT;
+Q_CORE_EXPORT bool qEnvironmentVariableIsEmpty(const char *varName) noexcept;
+Q_CORE_EXPORT bool qEnvironmentVariableIsSet(const char *varName) noexcept;
+Q_CORE_EXPORT int  qEnvironmentVariableIntValue(const char *varName, bool *ok=nullptr) noexcept;
 
 inline int qIntCast(double f) { return int(f); }
 inline int qIntCast(float f) { return int(f); }
diff --git a/src/corelib/global/qglobalstatic.h b/src/corelib/global/qglobalstatic.h
index 555bdf04c1..4f89876793 100644
--- a/src/corelib/global/qglobalstatic.h
+++ b/src/corelib/global/qglobalstatic.h
@@ -79,14 +79,14 @@ enum GuardValues {
     Q_GLOBAL_STATIC_INTERNAL_DECORATION Type *innerFunction()   \
     {                                                           \
         struct HolderBase {                                     \
-            ~HolderBase() Q_DECL_NOTHROW                        \
+            ~HolderBase() noexcept                        \
             { if (guard.load() == QtGlobalStatic::Initialized)  \
                   guard.store(QtGlobalStatic::Destroyed); }     \
         };                                                      \
         static struct Holder : public HolderBase {              \
             Type value;                                         \
             Holder()                                            \
-                Q_DECL_NOEXCEPT_EXPR(noexcept(Type ARGS))       \
+                noexcept(noexcept(Type ARGS))       \
                 : value ARGS                                    \
             { guard.store(QtGlobalStatic::Initialized); }       \
         } holder;                                               \
@@ -131,8 +131,8 @@ struct QGlobalStatic
 
     bool isDestroyed() const { return guard.load() <= QtGlobalStatic::Destroyed; }
     bool exists() const { return guard.load() == QtGlobalStatic::Initialized; }
-    operator Type *() { if (isDestroyed()) return 0; return innerFunction(); }
-    Type *operator()() { if (isDestroyed()) return 0; return innerFunction(); }
+    operator Type *() { if (isDestroyed()) return nullptr; return innerFunction(); }
+    Type *operator()() { if (isDestroyed()) return nullptr; return innerFunction(); }
     Type *operator->()
     {
       Q_ASSERT_X(!isDestroyed(), "Q_GLOBAL_STATIC", "The global static was used after being destroyed");
diff --git a/src/corelib/global/qhooks.cpp b/src/corelib/global/qhooks.cpp
index bbddb1cbf1..020dee3710 100644
--- a/src/corelib/global/qhooks.cpp
+++ b/src/corelib/global/qhooks.cpp
@@ -67,7 +67,7 @@ quintptr Q_CORE_EXPORT qtHookData[] = {
     // The required sizes and offsets are tested in tests/auto/other/toolsupport.
     // When this fails and the change was intentional, adjust the test and
     // adjust this value here.
-    16
+    17
 };
 
 Q_STATIC_ASSERT(QHooks::LastHookIndex == sizeof(qtHookData) / sizeof(qtHookData[0]));
diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index 4119012d85..c3eb469767 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -350,7 +350,7 @@ QLibraryInfo::buildDate()
   \since 5.3
 */
 
-const char *QLibraryInfo::build() Q_DECL_NOTHROW
+const char *QLibraryInfo::build() noexcept
 {
     return QT_BUILD_STR;
 }
@@ -377,7 +377,7 @@ QLibraryInfo::isDebugBuild()
 
     \sa qVersion()
 */
-QVersionNumber QLibraryInfo::version() Q_DECL_NOTHROW
+QVersionNumber QLibraryInfo::version() noexcept
 {
     return QVersionNumber(QT_VERSION_MAJOR, QT_VERSION_MINOR, QT_VERSION_PATCH);
 }
@@ -717,11 +717,6 @@ void qt_core_boilerplate()
 
     QT_PREPEND_NAMESPACE(qDumpCPUFeatures)();
 
-#ifdef QT_EVAL
-    extern void qt_core_eval_init(QCoreApplicationPrivate::Type);
-    qt_core_eval_init(QCoreApplicationPrivate::Tty);
-#endif
-
     exit(0);
 }
 
diff --git a/src/corelib/global/qlibraryinfo.h b/src/corelib/global/qlibraryinfo.h
index 80fc5bd4fc..20fd3897f7 100644
--- a/src/corelib/global/qlibraryinfo.h
+++ b/src/corelib/global/qlibraryinfo.h
@@ -62,12 +62,12 @@ public:
 #endif // QT_DEPRECATED_SINCE(5, 5)
 #endif // datestring
 
-    static const char * build() Q_DECL_NOTHROW;
+    static const char * build() noexcept;
 
     static bool isDebugBuild();
 
 #ifndef QT_BOOTSTRAPPED
-    static QVersionNumber version() Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static QVersionNumber version() noexcept Q_DECL_CONST_FUNCTION;
 #endif
 
     enum LibraryLocation
diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index ece97077c1..4941ca45aa 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -347,7 +347,7 @@ using namespace QtPrivate;
 */
 
 #if defined(Q_CC_MSVC) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
-static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) Q_DECL_NOEXCEPT
+static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) noexcept
 {
     size_t len = qstrlen(s);
     if (len + 1 > space) {
@@ -530,7 +530,7 @@ QDebug QMessageLogger::debug(QMessageLogger::CategoryFunction catFunc) const
 
     \sa QNoDebug, qDebug()
 */
-QNoDebug QMessageLogger::noDebug() const Q_DECL_NOTHROW
+QNoDebug QMessageLogger::noDebug() const noexcept
 {
     return QNoDebug();
 }
@@ -876,7 +876,7 @@ QDebug QMessageLogger::critical(QMessageLogger::CategoryFunction catFunc) const
 
     \sa qFatal()
 */
-void QMessageLogger::fatal(const char *msg, ...) const Q_DECL_NOTHROW
+void QMessageLogger::fatal(const char *msg, ...) const noexcept
 {
     QString message;
 
diff --git a/src/corelib/global/qlogging.h b/src/corelib/global/qlogging.h
index dded09999b..8f39780112 100644
--- a/src/corelib/global/qlogging.h
+++ b/src/corelib/global/qlogging.h
@@ -121,7 +121,7 @@ public:
     Q_NORETURN
 #endif
     Q_DECL_COLD_FUNCTION
-    void fatal(const char *msg, ...) const Q_DECL_NOTHROW Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
+    void fatal(const char *msg, ...) const noexcept Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
 
 #ifndef QT_NO_DEBUG_STREAM
     QDebug debug() const;
@@ -137,7 +137,7 @@ public:
     QDebug critical(const QLoggingCategory &cat) const;
     QDebug critical(CategoryFunction catFunc) const;
 
-    QNoDebug noDebug() const Q_DECL_NOTHROW;
+    QNoDebug noDebug() const noexcept;
 #endif // QT_NO_DEBUG_STREAM
 
 private:
diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index 6488426e64..06aef81afc 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -50,10 +50,10 @@ QT_BEGIN_NAMESPACE
 
 #if !defined(Q_QDOC) && !defined(Q_MOC_RUN)
 struct QMetaObject;
-const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT; // defined in qobject.h (which can't be included here)
+const QMetaObject *qt_getQtMetaObject() noexcept; // defined in qobject.h (which can't be included here)
 #define QT_Q_ENUM(ENUM) \
-    inline const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return qt_getQtMetaObject(); } \
-    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; }
+    inline const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return qt_getQtMetaObject(); } \
+    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; }
 #define QT_Q_FLAG(ENUM) QT_Q_ENUM(ENUM)
 #else
 #define QT_Q_ENUM Q_ENUM
@@ -1198,7 +1198,8 @@ public:
     enum TextFormat {
         PlainText,
         RichText,
-        AutoText
+        AutoText,
+        MarkdownText
     };
 
     enum AspectRatioMode {
@@ -1614,7 +1615,7 @@ public:
         TitleBarArea    // For move
     };
 
-#if defined(Q_COMPILER_CLASS_ENUM) && defined(Q_COMPILER_CONSTEXPR)
+#if defined(Q_COMPILER_CONSTEXPR)
     enum class Initialization {
         Uninitialized
     };
diff --git a/src/corelib/global/qnumeric.cpp b/src/corelib/global/qnumeric.cpp
index fc2b052edf..11440f40a4 100644
--- a/src/corelib/global/qnumeric.cpp
+++ b/src/corelib/global/qnumeric.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -46,6 +46,7 @@ QT_BEGIN_NAMESPACE
 /*!
     Returns \c true if the double \a {d} is equivalent to infinity.
     \relates <QtGlobal>
+    \sa qInf()
 */
 Q_CORE_EXPORT bool qIsInf(double d) { return qt_is_inf(d); }
 
@@ -64,6 +65,7 @@ Q_CORE_EXPORT bool qIsFinite(double d) { return qt_is_finite(d); }
 /*!
     Returns \c true if the float \a {f} is equivalent to infinity.
     \relates <QtGlobal>
+    \sa qInf()
 */
 Q_CORE_EXPORT bool qIsInf(float f) { return qt_is_inf(f); }
 
@@ -88,15 +90,37 @@ Q_CORE_EXPORT double qSNaN() { return qt_snan(); }
 /*!
     Returns the bit pattern of a quiet NaN as a double.
     \relates <QtGlobal>
+    \sa qIsNaN()
 */
 Q_CORE_EXPORT double qQNaN() { return qt_qnan(); }
 
 /*!
     Returns the bit pattern for an infinite number as a double.
     \relates <QtGlobal>
+    \sa qIsInf()
 */
 Q_CORE_EXPORT double qInf() { return qt_inf(); }
 
+/*!
+    \relates <QtGlobal>
+    Classifies a floating-point value.
+
+    The return values are defined in \c{<cmath>}: returns one of the following,
+    determined by the floating-point class of \a val:
+    \list
+    \li FP_NAN not a number
+    \li FP_INFINITE infinities (positive or negative)
+    \li FP_ZERO zero (positive or negative)
+    \li FP_NORMAL finite with a full mantissa
+    \li FP_SUBNORMAL finite with a reduced mantissa
+    \endlist
+*/
+Q_CORE_EXPORT int qFpClassify(double val) { return qt_fpclassify(val); }
+
+/*!
+    \overload
+*/
+Q_CORE_EXPORT int qFpClassify(float val) { return qt_fpclassify(val); }
 
 
 /*!
diff --git a/src/corelib/global/qnumeric.h b/src/corelib/global/qnumeric.h
index 535a96aaec..6a0c64712f 100644
--- a/src/corelib/global/qnumeric.h
+++ b/src/corelib/global/qnumeric.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -48,9 +48,11 @@ QT_BEGIN_NAMESPACE
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(double d);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(double d);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(double d);
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(double val);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(float f);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(float f);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(float f);
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(float val);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qSNaN();
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN();
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf();
diff --git a/src/corelib/global/qnumeric_p.h b/src/corelib/global/qnumeric_p.h
index 4a225b2599..21f9cfbef0 100644
--- a/src/corelib/global/qnumeric_p.h
+++ b/src/corelib/global/qnumeric_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2018 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -85,9 +85,11 @@ namespace qnumeric_std_wrapper {
 Q_DECL_CONST_FUNCTION static inline bool math_h_isnan(double d) { using namespace std; return isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isinf(double d) { using namespace std; return isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isfinite(double d) { using namespace std; return isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int math_h_fpclassify(double d) { using namespace std; return fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isnan(float f) { using namespace std; return isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isinf(float f) { using namespace std; return isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isfinite(float f) { using namespace std; return isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int math_h_fpclassify(float f) { using namespace std; return fpclassify(f); }
 }
 QT_END_NAMESPACE
 // These macros from math.h conflict with the real functions in the std namespace.
@@ -95,6 +97,7 @@ QT_END_NAMESPACE
 #    undef isnan
 #    undef isinf
 #    undef isfinite
+#    undef fpclassify
 #  endif // defined(isnan)
 #endif
 
@@ -106,20 +109,24 @@ namespace qnumeric_std_wrapper {
 Q_DECL_CONST_FUNCTION static inline bool isnan(double d) { return math_h_isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(double d) { return math_h_isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(double d) { return math_h_isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(double d) { return math_h_fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool isnan(float f) { return math_h_isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(float f) { return math_h_isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(float f) { return math_h_isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(float f) { return math_h_fpclassify(f); }
 #else
 Q_DECL_CONST_FUNCTION static inline bool isnan(double d) { return std::isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(double d) { return std::isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(double d) { return std::isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(double d) { return std::fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool isnan(float f) { return std::isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(float f) { return std::isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(float f) { return std::isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(float f) { return std::fpclassify(f); }
 #endif
 }
 
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_infinity,
                       "platform has no definition for infinity for type double");
@@ -127,7 +134,7 @@ Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() Q_DECL_NOEX
 }
 
 // Signaling NaN
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_signaling_NaN,
                       "platform has no definition for signaling NaN for type double");
@@ -135,7 +142,7 @@ Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() Q_DECL_NOE
 }
 
 // Quiet NaN
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_qnan() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_qnan() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_quiet_NaN,
                       "platform has no definition for quiet NaN for type double");
@@ -157,6 +164,11 @@ Q_DECL_CONST_FUNCTION static inline bool qt_is_finite(double d)
     return qnumeric_std_wrapper::isfinite(d);
 }
 
+Q_DECL_CONST_FUNCTION static inline int qt_fpclassify(double d)
+{
+    return qnumeric_std_wrapper::fpclassify(d);
+}
+
 Q_DECL_CONST_FUNCTION static inline bool qt_is_inf(float f)
 {
     return qnumeric_std_wrapper::isinf(f);
@@ -172,6 +184,11 @@ Q_DECL_CONST_FUNCTION static inline bool qt_is_finite(float f)
     return qnumeric_std_wrapper::isfinite(f);
 }
 
+Q_DECL_CONST_FUNCTION static inline int qt_fpclassify(float f)
+{
+    return qnumeric_std_wrapper::fpclassify(f);
+}
+
 #ifndef Q_CLANG_QDOC
 namespace {
 /*!
diff --git a/src/corelib/global/qoperatingsystemversion.cpp b/src/corelib/global/qoperatingsystemversion.cpp
index 94dc261b41..42a1275621 100644
--- a/src/corelib/global/qoperatingsystemversion.cpp
+++ b/src/corelib/global/qoperatingsystemversion.cpp
@@ -340,7 +340,6 @@ QString QOperatingSystemVersion::name() const
     }
 }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 /*!
     \fn bool QOperatingSystemVersion::isAnyOfType(std::initializer_list<OSType> types) const
 
@@ -355,7 +354,6 @@ bool QOperatingSystemVersion::isAnyOfType(std::initializer_list<OSType> types) c
     }
     return false;
 }
-#endif
 
 /*!
     \variable QOperatingSystemVersion::Windows7
diff --git a/src/corelib/global/qoperatingsystemversion.h b/src/corelib/global/qoperatingsystemversion.h
index df01e5438a..e99e4f8997 100644
--- a/src/corelib/global/qoperatingsystemversion.h
+++ b/src/corelib/global/qoperatingsystemversion.h
@@ -119,9 +119,7 @@ public:
     Q_DECL_CONSTEXPR int segmentCount() const
     { return m_micro >= 0 ? 3 : m_minor >= 0 ? 2 : m_major >= 0 ? 1 : 0; }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     bool isAnyOfType(std::initializer_list<OSType> types) const;
-#endif
     Q_DECL_CONSTEXPR OSType type() const { return m_os; }
     QString name() const;
 
diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h
index 1f327c352e..8d65720850 100644
--- a/src/corelib/global/qprocessordetection.h
+++ b/src/corelib/global/qprocessordetection.h
@@ -282,6 +282,20 @@
 // Q_BYTE_ORDER not defined, use endianness auto-detection
 
 /*
+    RISC-V family, known variants: 32- and 64-bit
+
+    RISC-V is little-endian.
+*/
+#elif defined(__riscv)
+#  define Q_PROCESSOR_RISCV
+#  if __riscv_xlen == 64
+#    define Q_PROCESSOR_RISCV_64
+#  else
+#    define Q_PROCESSOR_RISCV_32
+#  endif
+#  define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+
+/*
     S390 family, known variant: S390X (64-bit)
 
     S390 is big-endian.
diff --git a/src/corelib/global/qrandom.cpp b/src/corelib/global/qrandom.cpp
index 90df8653a7..2ee8f0dd01 100644
--- a/src/corelib/global/qrandom.cpp
+++ b/src/corelib/global/qrandom.cpp
@@ -91,7 +91,7 @@ DECLSPEC_IMPORT BOOLEAN WINAPI SystemFunction036(PVOID RandomBuffer, ULONG Rando
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_PROCESSOR_X86) && QT_COMPILER_SUPPORTS_HERE(RDRND)
-static qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW;
+static qsizetype qt_random_cpu(void *buffer, qsizetype count) noexcept;
 
 #  ifdef Q_PROCESSOR_X86_64
 #    define _rdrandXX_step _rdrand64_step
@@ -99,7 +99,7 @@ static qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW;
 #    define _rdrandXX_step _rdrand32_step
 #  endif
 
-static QT_FUNCTION_TARGET(RDRND) qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW
+static QT_FUNCTION_TARGET(RDRND) qsizetype qt_random_cpu(void *buffer, qsizetype count) noexcept
 {
     unsigned *ptr = reinterpret_cast<unsigned *>(buffer);
     unsigned *end = ptr + count;
@@ -134,7 +134,7 @@ enum {
 struct QRandomGenerator::SystemGenerator
 {
 #if QT_CONFIG(getentropy)
-    static qsizetype fillBuffer(void *buffer, qsizetype count) Q_DECL_NOTHROW
+    static qsizetype fillBuffer(void *buffer, qsizetype count) noexcept
     {
         // getentropy can read at most 256 bytes, so break the reading
         qsizetype read = 0;
@@ -204,13 +204,13 @@ struct QRandomGenerator::SystemGenerator
     }
 
 #elif defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-    qsizetype fillBuffer(void *buffer, qsizetype count) Q_DECL_NOTHROW
+    qsizetype fillBuffer(void *buffer, qsizetype count) noexcept
     {
         auto RtlGenRandom = SystemFunction036;
         return RtlGenRandom(buffer, ULONG(count)) ? count: 0;
     }
 #elif defined(Q_OS_WINRT)
-    qsizetype fillBuffer(void *, qsizetype) Q_DECL_NOTHROW
+    qsizetype fillBuffer(void *, qsizetype) noexcept
     {
         // always use the fallback
         return 0;
@@ -219,7 +219,7 @@ struct QRandomGenerator::SystemGenerator
 
     static SystemGenerator &self();
     typedef quint32 result_type;
-    void generate(quint32 *begin, quint32 *end) Q_DECL_NOEXCEPT_EXPR(FillBufferNoexcept);
+    void generate(quint32 *begin, quint32 *end) noexcept(FillBufferNoexcept);
 
     // For std::mersenne_twister_engine implementations that use something
     // other than quint32 (unsigned int) to fill their buffers.
@@ -242,7 +242,7 @@ struct QRandomGenerator::SystemGenerator
 
 #if defined(Q_OS_WIN)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     // on Windows, rand_s is a high-quality random number generator
     // and it requires no seeding
@@ -254,14 +254,14 @@ static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
 }
 #elif QT_CONFIG(getentropy)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *, qsizetype) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *, qsizetype) noexcept
 {
     // no fallback necessary, getentropy cannot fail under normal circumstances
     Q_UNREACHABLE();
 }
 #elif defined(Q_OS_BSD4) && !defined(__GLIBC__)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     // BSDs have arc4random(4) and these work even in chroot(2)
     arc4random_buf(ptr, left * sizeof(*ptr));
@@ -280,7 +280,7 @@ Q_NEVER_INLINE
 #ifdef Q_CC_GNU
 __attribute__((cold))   // this function is pretty big, so optimize for size
 #endif
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     quint32 scratch[12];    // see element count below
     quint32 *end = scratch;
@@ -354,7 +354,7 @@ static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
 #endif
 
 Q_NEVER_INLINE void QRandomGenerator::SystemGenerator::generate(quint32 *begin, quint32 *end)
-    Q_DECL_NOEXCEPT_EXPR(FillBufferNoexcept)
+    noexcept(FillBufferNoexcept)
 {
     quint32 *buffer = begin;
     qsizetype count = end - begin;
@@ -1167,7 +1167,7 @@ QRandomGenerator &QRandomGenerator::operator=(const QRandomGenerator &other)
     return *this;
 }
 
-QRandomGenerator::QRandomGenerator(std::seed_seq &sseq) Q_DECL_NOTHROW
+QRandomGenerator::QRandomGenerator(std::seed_seq &sseq) noexcept
     : type(MersenneTwister)
 {
     Q_ASSERT(this != system());
diff --git a/src/corelib/global/qrandom.h b/src/corelib/global/qrandom.h
index 46d3e0e152..2f72528266 100644
--- a/src/corelib/global/qrandom.h
+++ b/src/corelib/global/qrandom.h
@@ -68,7 +68,7 @@ public:
     QRandomGenerator(const quint32 *seedBuffer, qsizetype len)
         : QRandomGenerator(seedBuffer, seedBuffer + len)
     {}
-    Q_CORE_EXPORT QRandomGenerator(std::seed_seq &sseq) Q_DECL_NOTHROW;
+    Q_CORE_EXPORT QRandomGenerator(std::seed_seq &sseq) noexcept;
     Q_CORE_EXPORT QRandomGenerator(const quint32 *begin, const quint32 *end);
 
     // copy constructor & assignment operator (move unnecessary)
@@ -165,7 +165,7 @@ public:
     typedef quint32 result_type;
     result_type operator()() { return generate(); }
     void seed(quint32 s = 1) { *this = { s }; }
-    void seed(std::seed_seq &sseq) Q_DECL_NOTHROW { *this = { sseq }; }
+    void seed(std::seed_seq &sseq) noexcept { *this = { sseq }; }
     Q_CORE_EXPORT void discard(unsigned long long z);
     static Q_DECL_CONSTEXPR result_type min() { return std::numeric_limits<result_type>::min(); }
     static Q_DECL_CONSTEXPR result_type max() { return std::numeric_limits<result_type>::max(); }
@@ -228,7 +228,7 @@ public:
     QRandomGenerator64(const quint32 *seedBuffer, qsizetype len)
         : QRandomGenerator(seedBuffer, len)
     {}
-    QRandomGenerator64(std::seed_seq &sseq) Q_DECL_NOTHROW
+    QRandomGenerator64(std::seed_seq &sseq) noexcept
         : QRandomGenerator(sseq)
     {}
     QRandomGenerator64(const quint32 *begin, const quint32 *end)
diff --git a/src/corelib/global/qtrace_p.h b/src/corelib/global/qtrace_p.h
index 4cef126bb6..d9011c6066 100644
--- a/src/corelib/global/qtrace_p.h
+++ b/src/corelib/global/qtrace_p.h
@@ -122,6 +122,7 @@
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_TRACEPOINT) && !defined(QT_BOOTSTRAPPED)
+#  define Q_HAS_TRACEPOINTS 1
 #  define Q_TRACE(x, ...) QtPrivate::trace_ ## x(__VA_ARGS__)
 #  define Q_TRACE_EXIT(x, ...) \
     const auto qTraceExit_ ## x ## __COUNTER__ = qScopeGuard([&]() { Q_TRACE(x, __VA_ARGS__); });
@@ -131,6 +132,7 @@ QT_BEGIN_NAMESPACE
 #  define Q_UNCONDITIONAL_TRACE(x, ...) QtPrivate::do_trace_ ## x(__VA_ARGS__)
 #  define Q_TRACE_ENABLED(x) QtPrivate::trace_ ## x ## _enabled()
 #else
+#  define Q_HAS_TRACEPOINTS 0
 #  define Q_TRACE(x, ...)
 #  define Q_TRACE_EXIT(x, ...)
 #  define Q_TRACE_SCOPE(x, ...)
diff --git a/src/corelib/global/qtypeinfo.h b/src/corelib/global/qtypeinfo.h
index 567ff5c08e..636dc24c07 100644
--- a/src/corelib/global/qtypeinfo.h
+++ b/src/corelib/global/qtypeinfo.h
@@ -308,7 +308,7 @@ Q_DECLARE_TYPEINFO_BODY(QFlags<T>, Q_PRIMITIVE_TYPE);
 #define Q_DECLARE_SHARED_IMPL(TYPE, FLAGS) \
 Q_DECLARE_TYPEINFO(TYPE, FLAGS); \
 inline void swap(TYPE &value1, TYPE &value2) \
-    Q_DECL_NOEXCEPT_EXPR(noexcept(value1.swap(value2))) \
+    noexcept(noexcept(value1.swap(value2))) \
 { value1.swap(value2); }
 #define Q_DECLARE_SHARED(TYPE) Q_DECLARE_SHARED_IMPL(TYPE, Q_MOVABLE_TYPE)
 #define Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(TYPE) \
diff --git a/src/corelib/io/io.pri b/src/corelib/io/io.pri
index 9b6044752f..13b43ad8f7 100644
--- a/src/corelib/io/io.pri
+++ b/src/corelib/io/io.pri
@@ -158,7 +158,8 @@ win32 {
             io/qwindowspipereader.cpp \
             io/qwindowspipewriter.cpp
 
-        LIBS += -lmpr -lnetapi32 -luserenv
+        LIBS += -lmpr -luserenv
+        QMAKE_USE_PRIVATE += netapi32
     } else {
         SOURCES += \
                 io/qstandardpaths_winrt.cpp \
diff --git a/src/corelib/io/qabstractfileengine_p.h b/src/corelib/io/qabstractfileengine_p.h
index 4a7fe7bff5..c88b66c7ce 100644
--- a/src/corelib/io/qabstractfileengine_p.h
+++ b/src/corelib/io/qabstractfileengine_p.h
@@ -193,7 +193,7 @@ public:
         uchar *address;
     };
 
-    virtual bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0);
+    virtual bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr);
     virtual bool supportsExtension(Extension extension) const;
 
     // Factory
diff --git a/src/corelib/io/qdebug.cpp b/src/corelib/io/qdebug.cpp
index 15c5e0ce96..6dc12cd83f 100644
--- a/src/corelib/io/qdebug.cpp
+++ b/src/corelib/io/qdebug.cpp
@@ -166,7 +166,7 @@ void QDebug::putUcs4(uint ucs4)
 {
     maybeQuote('\'');
     if (ucs4 < 0x20) {
-        stream->ts << "\\x" << hex << ucs4 << reset;
+        stream->ts << "\\x" << Qt::hex << ucs4 << Qt::reset;
     } else if (ucs4 < 0x80) {
         stream->ts << char(ucs4);
     } else {
@@ -174,7 +174,7 @@ void QDebug::putUcs4(uint ucs4)
             stream->ts << "\\u" << qSetFieldWidth(4);
         else
             stream->ts << "\\U" << qSetFieldWidth(8);
-        stream->ts << hex << qSetPadChar(QLatin1Char('0')) << ucs4 << reset;
+        stream->ts << Qt::hex << qSetPadChar(QLatin1Char('0')) << ucs4 << Qt::reset;
     }
     maybeQuote('\'');
 }
@@ -834,7 +834,7 @@ QDebug &QDebug::resetFormat()
     that QDebugStateSaver stores for the duration of the current block.
 
     The settings of the internal QTextStream are also saved and restored,
-    so that using << hex in a QDebug operator doesn't affect other QDebug
+    so that using << Qt::hex in a QDebug operator doesn't affect other QDebug
     operators.
 
     \since 5.1
diff --git a/src/corelib/io/qdebug.h b/src/corelib/io/qdebug.h
index 91fde75fa5..889fb6b571 100644
--- a/src/corelib/io/qdebug.h
+++ b/src/corelib/io/qdebug.h
@@ -116,7 +116,7 @@ public:
     inline QDebug(const QDebug &o):stream(o.stream) { ++stream->ref; }
     inline QDebug &operator=(const QDebug &other);
     ~QDebug();
-    inline void swap(QDebug &other) Q_DECL_NOTHROW { qSwap(stream, other.stream); }
+    inline void swap(QDebug &other) noexcept { qSwap(stream, other.stream); }
 
     QDebug &resetFormat();
 
@@ -161,9 +161,7 @@ public:
     inline QDebug &operator<<(QLatin1String t) { putByteArray(t.latin1(), t.size(), ContainsLatin1); return maybeSpace(); }
     inline QDebug &operator<<(const QByteArray & t) { putByteArray(t.constData(), t.size(), ContainsBinary); return maybeSpace(); }
     inline QDebug &operator<<(const void * t) { stream->ts << t; return maybeSpace(); }
-#ifdef Q_COMPILER_NULLPTR
     inline QDebug &operator<<(std::nullptr_t) { stream->ts << "(nullptr)"; return maybeSpace(); }
-#endif
     inline QDebug &operator<<(QTextStreamFunction f) {
         stream->ts << f;
         return *this;
@@ -352,7 +350,7 @@ void qt_QMetaEnum_flagDebugOperator(QDebug &debug, size_t sizeofT, Int value)
 {
     const QDebugStateSaver saver(debug);
     debug.resetFormat();
-    debug.nospace() << "QFlags(" << hex << showbase;
+    debug.nospace() << "QFlags(" << Qt::hex << Qt::showbase;
     bool needSeparator = false;
     for (uint i = 0; i < sizeofT * 8; ++i) {
         if (value & (Int(1) << i)) {
diff --git a/src/corelib/io/qdir.h b/src/corelib/io/qdir.h
index 9abb833ab1..45a40995f8 100644
--- a/src/corelib/io/qdir.h
+++ b/src/corelib/io/qdir.h
@@ -109,11 +109,9 @@ public:
     QT_DEPRECATED_X("Use QDir::setPath() instead")
     QDir &operator=(const QString &path);
 #endif
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDir &operator=(QDir &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDir &operator=(QDir &&other) noexcept { swap(other); return *this; }
 
-    void swap(QDir &other) Q_DECL_NOTHROW
+    void swap(QDir &other) noexcept
     { qSwap(d_ptr, other.d_ptr); }
 
     void setPath(const QString &path);
@@ -190,7 +188,7 @@ public:
 
     static QFileInfoList drives();
 
-    Q_DECL_CONSTEXPR static inline QChar listSeparator() Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR static inline QChar listSeparator() noexcept
     {
 #if defined(Q_OS_WIN)
         return QLatin1Char(';');
diff --git a/src/corelib/io/qdiriterator.cpp b/src/corelib/io/qdiriterator.cpp
index ccde9745bf..21214ee273 100644
--- a/src/corelib/io/qdiriterator.cpp
+++ b/src/corelib/io/qdiriterator.cpp
@@ -93,6 +93,7 @@
 #include "qdir_p.h"
 #include "qabstractfileengine_p.h"
 
+#include <QtCore/qregexp.h>
 #include <QtCore/qset.h>
 #include <QtCore/qstack.h>
 #include <QtCore/qvariant.h>
diff --git a/src/corelib/io/qfileinfo.h b/src/corelib/io/qfileinfo.h
index baea18fab1..111517325d 100644
--- a/src/corelib/io/qfileinfo.h
+++ b/src/corelib/io/qfileinfo.h
@@ -67,11 +67,9 @@ public:
     ~QFileInfo();
 
     QFileInfo &operator=(const QFileInfo &fileinfo);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QFileInfo &operator=(QFileInfo &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QFileInfo &operator=(QFileInfo &&other) noexcept { swap(other); return *this; }
 
-    void swap(QFileInfo &other) Q_DECL_NOTHROW
+    void swap(QFileInfo &other) noexcept
     { qSwap(d_ptr, other.d_ptr); }
 
     bool operator==(const QFileInfo &fileinfo) const;
diff --git a/src/corelib/io/qfileinfo_p.h b/src/corelib/io/qfileinfo_p.h
index e4b28f4519..36f440812f 100644
--- a/src/corelib/io/qfileinfo_p.h
+++ b/src/corelib/io/qfileinfo_p.h
@@ -80,7 +80,7 @@ public:
     };
 
     inline QFileInfoPrivate()
-        : QSharedData(), fileEngine(0),
+        : QSharedData(), fileEngine(nullptr),
         cachedFlags(0),
         isDefaultConstructed(true),
         cache_enabled(true), fileFlags(0), fileSize(0)
diff --git a/src/corelib/io/qfilesystemengine_p.h b/src/corelib/io/qfilesystemengine_p.h
index 09ec2d6a10..e44837747c 100644
--- a/src/corelib/io/qfilesystemengine_p.h
+++ b/src/corelib/io/qfilesystemengine_p.h
@@ -130,7 +130,7 @@ public:
     static bool removeFile(const QFileSystemEntry &entry, QSystemError &error);
 
     static bool setPermissions(const QFileSystemEntry &entry, QFile::Permissions permissions, QSystemError &error,
-                               QFileSystemMetaData *data = 0);
+                               QFileSystemMetaData *data = nullptr);
 
     // unused, therefore not implemented
     static bool setFileTime(const QFileSystemEntry &entry, const QDateTime &newDate,
diff --git a/src/corelib/io/qfilesystemmetadata_p.h b/src/corelib/io/qfilesystemmetadata_p.h
index 4d2a5acb9b..81f4b3ba13 100644
--- a/src/corelib/io/qfilesystemmetadata_p.h
+++ b/src/corelib/io/qfilesystemmetadata_p.h
@@ -76,7 +76,7 @@ class Q_AUTOTEST_EXPORT QFileSystemMetaData
 {
 public:
     QFileSystemMetaData()
-        : knownFlagsMask(0),
+        : knownFlagsMask(nullptr),
           size_(-1)
     {
     }
@@ -184,7 +184,7 @@ public:
 
     void clear()
     {
-        knownFlagsMask = 0;
+        knownFlagsMask = nullptr;
     }
 
     void clearFlags(MetaDataFlags flags = AllMetaDataFlags)
diff --git a/src/corelib/io/qfilesystemwatcher_fsevents.mm b/src/corelib/io/qfilesystemwatcher_fsevents.mm
index f594fad803..fb3b6f86fd 100644
--- a/src/corelib/io/qfilesystemwatcher_fsevents.mm
+++ b/src/corelib/io/qfilesystemwatcher_fsevents.mm
@@ -407,7 +407,7 @@ QStringList QFseventsFileSystemWatcherEngine::addPaths(const QStringList &paths,
         stopStream();
         if (!startStream()) {
             // ok, something went wrong, let's try to restore the previous state
-            watchingState = qMove(oldState);
+            watchingState = std::move(oldState);
             // and because we don't know which path caused the issue (if any), fail on all of them
             p = paths;
 
@@ -474,7 +474,7 @@ QStringList QFseventsFileSystemWatcherEngine::removePaths(const QStringList &pat
 
     if (needsRestart) {
         if (!restartStream()) {
-            watchingState = qMove(oldState);
+            watchingState = std::move(oldState);
             startStream();
         }
     }
diff --git a/src/corelib/io/qfilesystemwatcher_inotify.cpp b/src/corelib/io/qfilesystemwatcher_inotify.cpp
index a5e629b646..9d008947ba 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_inotify.cpp
@@ -388,7 +388,7 @@ void QInotifyFileSystemWatcherEngine::readFromInotify()
         const inotify_event &event = **it;
         ++it;
 
-        // qDebug() << "inotify event, wd" << event.wd << "mask" << hex << event.mask;
+        // qDebug() << "inotify event, wd" << event.wd << "mask" << Qt::hex << event.mask;
 
         int id = event.wd;
         QString path = getPathFromID(id);
diff --git a/src/corelib/io/qfilesystemwatcher_win.cpp b/src/corelib/io/qfilesystemwatcher_win.cpp
index 66985f8982..eb626fd541 100644
--- a/src/corelib/io/qfilesystemwatcher_win.cpp
+++ b/src/corelib/io/qfilesystemwatcher_win.cpp
@@ -79,7 +79,7 @@ static Qt::HANDLE createChangeNotification(const QString &path, uint flags)
         nativePath.append(QLatin1Char('\\'));
     const HANDLE result = FindFirstChangeNotification(reinterpret_cast<const wchar_t *>(nativePath.utf16()),
                                                       FALSE, flags);
-    DEBUG() << __FUNCTION__ << nativePath << hex <<showbase << flags << "returns" << result;
+    DEBUG() << __FUNCTION__ << nativePath << Qt::hex <<showbase << flags << "returns" << result;
     return result;
 }
 
@@ -108,7 +108,11 @@ public:
     // Call from QFileSystemWatcher::addPaths() to set up notifications on drives
     void addPath(const QString &path);
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEventFilter(const QByteArray &, void *messageIn, qintptr *) override;
+#else
     bool nativeEventFilter(const QByteArray &, void *messageIn, long *) override;
+#endif
 
 signals:
     void driveAdded();
@@ -255,7 +259,11 @@ inline void QWindowsRemovableDriveListener::handleDbtDriveArrivalRemoval(const M
     }
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWindowsRemovableDriveListener::nativeEventFilter(const QByteArray &, void *messageIn, qintptr *)
+#else
 bool QWindowsRemovableDriveListener::nativeEventFilter(const QByteArray &, void *messageIn, long *)
+#endif
 {
     const MSG *msg = reinterpret_cast<const MSG *>(messageIn);
     if (msg->message == WM_DEVICECHANGE) {
@@ -424,7 +432,7 @@ QStringList QWindowsFileSystemWatcherEngine::addPaths(const QStringList &paths,
                 // Requesting to add a file whose directory has been added previously.
                 // Recreate the notification handle to add the missing notification attributes
                 // for files (FILE_NOTIFY_CHANGE_ATTRIBUTES...)
-                DEBUG() << "recreating" << absolutePath << hex << showbase << hit.value().flags
+                DEBUG() << "recreating" << absolutePath << Qt::hex << Qt::showbase << hit.value().flags
                     << "->" << flags;
                 const Qt::HANDLE fileHandle = createChangeNotification(absolutePath, flags);
                 if (fileHandle != INVALID_HANDLE_VALUE) {
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 6b091a8eef..0f416f4886 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -115,7 +115,7 @@ public:
     virtual bool isUnnamedFile() const
     { return false; }
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr) override;
     bool supportsExtension(Extension extension) const override;
 
     //FS only!!
diff --git a/src/corelib/io/qipaddress.cpp b/src/corelib/io/qipaddress.cpp
index 039e291b43..d9f7916dd4 100644
--- a/src/corelib/io/qipaddress.cpp
+++ b/src/corelib/io/qipaddress.cpp
@@ -253,7 +253,7 @@ const QChar *parseIp6(IPv6Address &address, const QChar *begin, const QChar *end
 
 static inline QChar toHex(uchar c)
 {
-    return QtMiscUtils::toHexLower(c);
+    return QChar::fromLatin1(QtMiscUtils::toHexLower(c));
 }
 
 void toString(QString &appendTo, IPv6Address address)
diff --git a/src/corelib/io/qloggingcategory.h b/src/corelib/io/qloggingcategory.h
index 91e3144300..5825095729 100644
--- a/src/corelib/io/qloggingcategory.h
+++ b/src/corelib/io/qloggingcategory.h
@@ -111,8 +111,6 @@ private:
 #define Q_DECLARE_LOGGING_CATEGORY(name) \
     extern const QLoggingCategory &name();
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) || defined(Q_MOC_RUN)
-
 #define Q_LOGGING_CATEGORY(name, ...) \
     const QLoggingCategory &name() \
     { \
@@ -148,39 +146,6 @@ private:
     for (bool qt_category_enabled = category().isCriticalEnabled(); qt_category_enabled; qt_category_enabled = false) \
         QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC, category().categoryName()).critical(__VA_ARGS__)
 
-#else // defined(Q_COMPILER_VARIADIC_MACROS) || defined(Q_MOC_RUN)
-
-// Optional msgType argument not supported
-#define Q_LOGGING_CATEGORY(name, string) \
-    const QLoggingCategory &name() \
-    { \
-        static const QLoggingCategory category(string); \
-        return category; \
-    }
-
-// check for enabled category inside QMessageLogger.
-#if !defined(QT_NO_DEBUG_OUTPUT)
-#  define qCDebug qDebug
-#else
-#  define qCDebug(category) QT_NO_QDEBUG_MACRO()
-#endif
-
-#if !defined(QT_NO_INFO_OUTPUT)
-#  define qCInfo qInfo
-#else
-#  define qCInfo(category) QT_NO_QDEBUG_MACRO()
-#endif
-
-#if !defined(QT_NO_WARNING_OUTPUT)
-#  define qCWarning qWarning
-#else
-#  define qCWarning(category) QT_NO_QDEBUG_MACRO()
-#endif
-
-#define qCCritical qCritical
-
-#endif // Q_COMPILER_VARIADIC_MACROS || defined(Q_MOC_RUN)
-
 QT_END_NAMESPACE
 
 #endif // QLOGGINGCATEGORY_H
diff --git a/src/corelib/io/qnoncontiguousbytedevice.cpp b/src/corelib/io/qnoncontiguousbytedevice.cpp
index beca6ccbf7..d1806aa12b 100644
--- a/src/corelib/io/qnoncontiguousbytedevice.cpp
+++ b/src/corelib/io/qnoncontiguousbytedevice.cpp
@@ -534,7 +534,7 @@ QNonContiguousByteDevice* QNonContiguousByteDeviceFactory::create(QSharedPointer
 */
 QSharedPointer<QNonContiguousByteDevice> QNonContiguousByteDeviceFactory::createShared(QSharedPointer<QRingBuffer> ringBuffer)
 {
-    return QSharedPointer<QNonContiguousByteDeviceRingBufferImpl>::create(qMove(ringBuffer));
+    return QSharedPointer<QNonContiguousByteDeviceRingBufferImpl>::create(std::move(ringBuffer));
 }
 
 /*!
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 9557a1d24b..0b964e6a21 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -42,6 +42,7 @@
 
 #include <qdebug.h>
 #include <qdir.h>
+#include <qscopedvaluerollback.h>
 #if defined(Q_OS_WIN)
 #include <qtimer.h>
 #endif
@@ -1068,9 +1069,8 @@ bool QProcessPrivate::tryReadFromChannel(Channel *channel)
     if (currentReadChannel == channelIdx) {
         didRead = true;
         if (!emittedReadyRead) {
-            emittedReadyRead = true;
+            QScopedValueRollback<bool> guard(emittedReadyRead, true);
             emit q->readyRead();
-            emittedReadyRead = false;
         }
     }
     emit q->channelReadyRead(int(channelIdx));
diff --git a/src/corelib/io/qprocess.h b/src/corelib/io/qprocess.h
index a2e3c01f7c..9fda5fba11 100644
--- a/src/corelib/io/qprocess.h
+++ b/src/corelib/io/qprocess.h
@@ -72,12 +72,10 @@ public:
     QProcessEnvironment();
     QProcessEnvironment(const QProcessEnvironment &other);
     ~QProcessEnvironment();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QProcessEnvironment &operator=(QProcessEnvironment && other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QProcessEnvironment &operator=(QProcessEnvironment && other) noexcept { swap(other); return *this; }
     QProcessEnvironment &operator=(const QProcessEnvironment &other);
 
-    void swap(QProcessEnvironment &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QProcessEnvironment &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QProcessEnvironment &other) const;
     inline bool operator!=(const QProcessEnvironment &other) const
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index eb2d1ed048..00acb81158 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -246,7 +246,7 @@ public:
             // if you add "= 4" here, increase the number of bits below
         };
 
-        Channel() : process(0), notifier(0), type(Normal), closed(false), append(false)
+        Channel() : process(nullptr), notifier(nullptr), type(Normal), closed(false), append(false)
         {
             pipe[0] = INVALID_Q_PIPE;
             pipe[1] = INVALID_Q_PIPE;
diff --git a/src/corelib/io/qresource_p.h b/src/corelib/io/qresource_p.h
index 7451de8809..fedf95bb33 100644
--- a/src/corelib/io/qresource_p.h
+++ b/src/corelib/io/qresource_p.h
@@ -108,7 +108,7 @@ public:
     Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) override;
     Iterator *endEntryList() override;
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr) override;
     bool supportsExtension(Extension extension) const override;
 };
 
diff --git a/src/corelib/io/qstorageinfo.h b/src/corelib/io/qstorageinfo.h
index 4ab7a353ef..237e68d2a1 100644
--- a/src/corelib/io/qstorageinfo.h
+++ b/src/corelib/io/qstorageinfo.h
@@ -62,11 +62,9 @@ public:
     ~QStorageInfo();
 
     QStorageInfo &operator=(const QStorageInfo &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QStorageInfo &operator=(QStorageInfo &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QStorageInfo &operator=(QStorageInfo &&other) noexcept { swap(other); return *this; }
 
-    inline void swap(QStorageInfo &other) Q_DECL_NOTHROW
+    inline void swap(QStorageInfo &other) noexcept
     { qSwap(d, other.d); }
 
     void setPath(const QString &path);
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index 6d82981fd6..b4090f710e 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -4159,7 +4159,7 @@ QList<QUrl> QUrl::fromStringList(const QStringList &urls, ParsingMode mode)
     \relates QHash
     \since 5.0
 */
-uint qHash(const QUrl &url, uint seed) Q_DECL_NOTHROW
+uint qHash(const QUrl &url, uint seed) noexcept
 {
     if (!url.d)
         return qHash(-1, seed); // the hash of an unset port (-1)
diff --git a/src/corelib/io/qurl.h b/src/corelib/io/qurl.h
index 5062ef7905..94269e4369 100644
--- a/src/corelib/io/qurl.h
+++ b/src/corelib/io/qurl.h
@@ -119,7 +119,7 @@ class QTypeInfo<QUrlTwoFlags<E1, E2> > : public QTypeInfoMerger<QUrlTwoFlags<E1,
 
 class QUrl;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_CORE_EXPORT uint qHash(const QUrl &url, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QUrl &url, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QUrl
 {
@@ -182,15 +182,13 @@ public:
     QUrl(const QString &url, ParsingMode mode = TolerantMode);
     QUrl &operator=(const QString &url);
 #endif
-#ifdef Q_COMPILER_RVALUE_REFS
-    QUrl(QUrl &&other) Q_DECL_NOTHROW : d(other.d)
+    QUrl(QUrl &&other) noexcept : d(other.d)
     { other.d = nullptr; }
-    inline QUrl &operator=(QUrl &&other) Q_DECL_NOTHROW
+    inline QUrl &operator=(QUrl &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
     ~QUrl();
 
-    inline void swap(QUrl &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QUrl &other) noexcept { qSwap(d, other.d); }
 
     void setUrl(const QString &url, ParsingMode mode = TolerantMode);
     QString url(FormattingOptions options = FormattingOptions(PrettyDecoded)) const;
@@ -361,7 +359,7 @@ public:
     static QList<QUrl> fromStringList(const QStringList &uris, ParsingMode mode = TolerantMode);
 
     static void setIdnWhitelist(const QStringList &);
-    friend Q_CORE_EXPORT uint qHash(const QUrl &url, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QUrl &url, uint seed) noexcept;
 
 private:
     QUrlPrivate *d;
diff --git a/src/corelib/io/qurl_p.h b/src/corelib/io/qurl_p.h
index 1b9237e58a..e75de32e03 100644
--- a/src/corelib/io/qurl_p.h
+++ b/src/corelib/io/qurl_p.h
@@ -59,7 +59,7 @@ QT_BEGIN_NAMESPACE
 
 // in qurlrecode.cpp
 extern Q_AUTOTEST_EXPORT int qt_urlRecode(QString &appendTo, const QChar *begin, const QChar *end,
-                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = 0);
+                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = nullptr);
 
 // in qurlidna.cpp
 enum AceLeadingDot { AllowLeadingDot, ForbidLeadingDot };
diff --git a/src/corelib/io/qurlquery.cpp b/src/corelib/io/qurlquery.cpp
index 10c3f836c8..d76107abfd 100644
--- a/src/corelib/io/qurlquery.cpp
+++ b/src/corelib/io/qurlquery.cpp
@@ -434,7 +434,7 @@ bool QUrlQuery::operator ==(const QUrlQuery &other) const
     Returns the hash value for \a key,
     using \a seed to seed the calculation.
 */
-uint qHash(const QUrlQuery &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QUrlQuery &key, uint seed) noexcept
 {
     if (const QUrlQueryPrivate *d = key.d) {
         QtPrivate::QHashCombine hash;
diff --git a/src/corelib/io/qurlquery.h b/src/corelib/io/qurlquery.h
index e3688aae2c..89d0f88059 100644
--- a/src/corelib/io/qurlquery.h
+++ b/src/corelib/io/qurlquery.h
@@ -52,7 +52,7 @@
 
 QT_BEGIN_NAMESPACE
 
-Q_CORE_EXPORT uint qHash(const QUrlQuery &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QUrlQuery &key, uint seed = 0) noexcept;
 
 class QUrlQueryPrivate;
 class Q_CORE_EXPORT QUrlQuery
@@ -70,16 +70,14 @@ public:
 
     QUrlQuery(const QUrlQuery &other);
     QUrlQuery &operator=(const QUrlQuery &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QUrlQuery &operator=(QUrlQuery &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QUrlQuery &operator=(QUrlQuery &&other) noexcept { swap(other); return *this; }
     ~QUrlQuery();
 
     bool operator==(const QUrlQuery &other) const;
     bool operator!=(const QUrlQuery &other) const
     { return !(*this == other); }
 
-    void swap(QUrlQuery &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QUrlQuery &other) noexcept { qSwap(d, other.d); }
 
     bool isEmpty() const;
     bool isDetached() const;
@@ -111,7 +109,7 @@ public:
 
 private:
     friend class QUrl;
-    friend Q_CORE_EXPORT uint qHash(const QUrlQuery &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QUrlQuery &key, uint seed) noexcept;
     QSharedDataPointer<QUrlQueryPrivate> d;
 public:
     typedef QSharedDataPointer<QUrlQueryPrivate> DataPtr;
diff --git a/src/corelib/io/qurlrecode.cpp b/src/corelib/io/qurlrecode.cpp
index 443ae18b21..f23480c755 100644
--- a/src/corelib/io/qurlrecode.cpp
+++ b/src/corelib/io/qurlrecode.cpp
@@ -692,7 +692,7 @@ qt_urlRecode(QString &appendTo, const QChar *begin, const QChar *end,
 }
 
 // qstring.cpp
-bool qt_is_ascii(const char *&ptr, const char *end) Q_DECL_NOTHROW;
+bool qt_is_ascii(const char *&ptr, const char *end) noexcept;
 
 /*!
     \internal
diff --git a/src/corelib/io/qwindowspipereader.cpp b/src/corelib/io/qwindowspipereader.cpp
index 15c9f52cf3..1f03ac5d5a 100644
--- a/src/corelib/io/qwindowspipereader.cpp
+++ b/src/corelib/io/qwindowspipereader.cpp
@@ -40,6 +40,7 @@
 #include "qwindowspipereader_p.h"
 #include "qiodevice_p.h"
 #include <qelapsedtimer.h>
+#include <qscopedvaluerollback.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -301,9 +302,8 @@ void QWindowsPipeReader::emitPendingReadyRead()
 {
     if (readyReadPending) {
         readyReadPending = false;
-        inReadyRead = true;
+        QScopedValueRollback<bool> guard(inReadyRead, true);
         emit readyRead();
-        inReadyRead = false;
     }
 }
 
diff --git a/src/corelib/io/qwindowspipewriter.cpp b/src/corelib/io/qwindowspipewriter.cpp
index 92e8b6db52..32536f495b 100644
--- a/src/corelib/io/qwindowspipewriter.cpp
+++ b/src/corelib/io/qwindowspipewriter.cpp
@@ -39,6 +39,7 @@
 
 #include "qwindowspipewriter_p.h"
 #include "qiodevice_p.h"
+#include <qscopedvaluerollback.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -111,9 +112,8 @@ void QWindowsPipeWriter::emitPendingBytesWrittenValue()
 
         emit canWrite();
         if (!inBytesWritten) {
-            inBytesWritten = true;
+            QScopedValueRollback<bool> guard(inBytesWritten, true);
             emit bytesWritten(bytes);
-            inBytesWritten = false;
         }
     }
 }
diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp
index 25a80a640c..d171b313e6 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.cpp
+++ b/src/corelib/itemmodels/qabstractitemmodel.cpp
@@ -45,6 +45,7 @@
 #include <qmimedata.h>
 #include <qdebug.h>
 #include <qvector.h>
+#include <qregexp.h>
 #include <qstack.h>
 #include <qbitarray.h>
 #include <qdatetime.h>
diff --git a/src/corelib/itemmodels/qabstractitemmodel.h b/src/corelib/itemmodels/qabstractitemmodel.h
index c34876d1d6..43649cf79b 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.h
+++ b/src/corelib/itemmodels/qabstractitemmodel.h
@@ -57,12 +57,12 @@ class Q_CORE_EXPORT QModelIndex
 {
     friend class QAbstractItemModel;
 public:
-    Q_DECL_CONSTEXPR inline QModelIndex() Q_DECL_NOTHROW : r(-1), c(-1), i(0), m(nullptr) {}
+    Q_DECL_CONSTEXPR inline QModelIndex() noexcept : r(-1), c(-1), i(0), m(nullptr) {}
     // compiler-generated copy/move ctors/assignment operators are fine!
-    Q_DECL_CONSTEXPR inline int row() const Q_DECL_NOTHROW { return r; }
-    Q_DECL_CONSTEXPR inline int column() const Q_DECL_NOTHROW { return c; }
-    Q_DECL_CONSTEXPR inline quintptr internalId() const Q_DECL_NOTHROW { return i; }
-    inline void *internalPointer() const Q_DECL_NOTHROW { return reinterpret_cast<void*>(i); }
+    Q_DECL_CONSTEXPR inline int row() const noexcept { return r; }
+    Q_DECL_CONSTEXPR inline int column() const noexcept { return c; }
+    Q_DECL_CONSTEXPR inline quintptr internalId() const noexcept { return i; }
+    inline void *internalPointer() const noexcept { return reinterpret_cast<void*>(i); }
     inline QModelIndex parent() const;
     inline QModelIndex sibling(int row, int column) const;
     inline QModelIndex siblingAtColumn(int column) const;
@@ -72,13 +72,13 @@ public:
 #endif
     inline QVariant data(int role = Qt::DisplayRole) const;
     inline Qt::ItemFlags flags() const;
-    Q_DECL_CONSTEXPR inline const QAbstractItemModel *model() const Q_DECL_NOTHROW { return m; }
-    Q_DECL_CONSTEXPR inline bool isValid() const Q_DECL_NOTHROW { return (r >= 0) && (c >= 0) && (m != nullptr); }
-    Q_DECL_CONSTEXPR inline bool operator==(const QModelIndex &other) const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline const QAbstractItemModel *model() const noexcept { return m; }
+    Q_DECL_CONSTEXPR inline bool isValid() const noexcept { return (r >= 0) && (c >= 0) && (m != nullptr); }
+    Q_DECL_CONSTEXPR inline bool operator==(const QModelIndex &other) const noexcept
         { return (other.r == r) && (other.i == i) && (other.c == c) && (other.m == m); }
-    Q_DECL_CONSTEXPR inline bool operator!=(const QModelIndex &other) const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline bool operator!=(const QModelIndex &other) const noexcept
         { return !(*this == other); }
-    Q_DECL_CONSTEXPR inline bool operator<(const QModelIndex &other) const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline bool operator<(const QModelIndex &other) const noexcept
         {
             return  r <  other.r
                 || (r == other.r && (c <  other.c
@@ -86,9 +86,9 @@ public:
                                                   || (i == other.i && std::less<const QAbstractItemModel *>()(m, other.m))))));
         }
 private:
-    inline QModelIndex(int arow, int acolumn, void *ptr, const QAbstractItemModel *amodel) Q_DECL_NOTHROW
+    inline QModelIndex(int arow, int acolumn, void *ptr, const QAbstractItemModel *amodel) noexcept
         : r(arow), c(acolumn), i(reinterpret_cast<quintptr>(ptr)), m(amodel) {}
-    Q_DECL_CONSTEXPR inline QModelIndex(int arow, int acolumn, quintptr id, const QAbstractItemModel *amodel) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline QModelIndex(int arow, int acolumn, quintptr id, const QAbstractItemModel *amodel) noexcept
         : r(arow), c(acolumn), i(id), m(amodel) {}
     int r, c;
     quintptr i;
@@ -103,7 +103,7 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QModelIndex &);
 class QPersistentModelIndexData;
 
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-uint qHash(const QPersistentModelIndex &index, uint seed = 0) Q_DECL_NOTHROW;
+uint qHash(const QPersistentModelIndex &index, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QPersistentModelIndex
 {
@@ -117,13 +117,11 @@ public:
     inline bool operator!=(const QPersistentModelIndex &other) const
     { return !operator==(other); }
     QPersistentModelIndex &operator=(const QPersistentModelIndex &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QPersistentModelIndex(QPersistentModelIndex &&other) Q_DECL_NOTHROW
+    inline QPersistentModelIndex(QPersistentModelIndex &&other) noexcept
         : d(other.d) { other.d = nullptr; }
-    inline QPersistentModelIndex &operator=(QPersistentModelIndex &&other) Q_DECL_NOTHROW
+    inline QPersistentModelIndex &operator=(QPersistentModelIndex &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    inline void swap(QPersistentModelIndex &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QPersistentModelIndex &other) noexcept { qSwap(d, other.d); }
     bool operator==(const QModelIndex &other) const;
     bool operator!=(const QModelIndex &other) const;
     QPersistentModelIndex &operator=(const QModelIndex &other);
@@ -143,14 +141,14 @@ public:
     bool isValid() const;
 private:
     QPersistentModelIndexData *d;
-    friend uint qHash(const QPersistentModelIndex &, uint seed) Q_DECL_NOTHROW;
+    friend uint qHash(const QPersistentModelIndex &, uint seed) noexcept;
 #ifndef QT_NO_DEBUG_STREAM
     friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);
 #endif
 };
 Q_DECLARE_SHARED(QPersistentModelIndex)
 
-inline uint qHash(const QPersistentModelIndex &index, uint seed) Q_DECL_NOTHROW
+inline uint qHash(const QPersistentModelIndex &index, uint seed) noexcept
 { return qHash(index.d, seed); }
 
 
@@ -464,7 +462,7 @@ inline QVariant QModelIndex::data(int arole) const
 inline Qt::ItemFlags QModelIndex::flags() const
 { return m ? m->flags(*this) : Qt::ItemFlags(); }
 
-inline uint qHash(const QModelIndex &index) Q_DECL_NOTHROW
+inline uint qHash(const QModelIndex &index) noexcept
 { return uint((uint(index.row()) << 4) + index.column() + index.internalId()); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/itemmodels/qabstractitemmodel_p.h b/src/corelib/itemmodels/qabstractitemmodel_p.h
index e6085eca94..92a440a125 100644
--- a/src/corelib/itemmodels/qabstractitemmodel_p.h
+++ b/src/corelib/itemmodels/qabstractitemmodel_p.h
@@ -98,7 +98,7 @@ public:
     void itemsMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation);
     bool allowMove(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation);
 
-    inline QModelIndex createIndex(int row, int column, void *data = 0) const {
+    inline QModelIndex createIndex(int row, int column, void *data = nullptr) const {
         return q_func()->createIndex(row, column, data);
     }
 
diff --git a/src/corelib/itemmodels/qabstractproxymodel_p.h b/src/corelib/itemmodels/qabstractproxymodel_p.h
index f7bd5cc691..a95687c970 100644
--- a/src/corelib/itemmodels/qabstractproxymodel_p.h
+++ b/src/corelib/itemmodels/qabstractproxymodel_p.h
@@ -62,7 +62,7 @@ class Q_CORE_EXPORT QAbstractProxyModelPrivate : public QAbstractItemModelPrivat
 {
     Q_DECLARE_PUBLIC(QAbstractProxyModel)
 public:
-    QAbstractProxyModelPrivate() : QAbstractItemModelPrivate(), model(0) {}
+    QAbstractProxyModelPrivate() : QAbstractItemModelPrivate(), model(nullptr) {}
     QAbstractItemModel *model;
     virtual void _q_sourceModelDestroyed();
     void mapDropCoordinatesToSource(int row, int column, const QModelIndex &parent,
diff --git a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
index a20024f468..0319d215a1 100644
--- a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
+++ b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
@@ -55,7 +55,7 @@ public:
 
     struct SourceModelForRowResult
     {
-        SourceModelForRowResult() : sourceModel(Q_NULLPTR), sourceRow(-1) {}
+        SourceModelForRowResult() : sourceModel(nullptr), sourceRow(-1) {}
         QAbstractItemModel *sourceModel;
         int sourceRow;
     };
diff --git a/src/corelib/itemmodels/qitemselectionmodel.cpp b/src/corelib/itemmodels/qitemselectionmodel.cpp
index 1bacb63b17..c93a4d15b9 100644
--- a/src/corelib/itemmodels/qitemselectionmodel.cpp
+++ b/src/corelib/itemmodels/qitemselectionmodel.cpp
@@ -1273,10 +1273,10 @@ struct IsNotValid {
     typedef bool result_type;
     struct is_transparent : std::true_type {};
     template <typename T>
-    Q_DECL_CONSTEXPR bool operator()(T &t) const Q_DECL_NOEXCEPT_EXPR(noexcept(t.isValid()))
+    Q_DECL_CONSTEXPR bool operator()(T &t) const noexcept(noexcept(t.isValid()))
     { return !t.isValid(); }
     template <typename T>
-    Q_DECL_CONSTEXPR bool operator()(T *t) const Q_DECL_NOEXCEPT_EXPR(noexcept(t->isValid()))
+    Q_DECL_CONSTEXPR bool operator()(T *t) const noexcept(noexcept(t->isValid()))
     { return !t->isValid(); }
 };
 }
diff --git a/src/corelib/itemmodels/qitemselectionmodel.h b/src/corelib/itemmodels/qitemselectionmodel.h
index 1c924053a5..3c3f9fb1ac 100644
--- a/src/corelib/itemmodels/qitemselectionmodel.h
+++ b/src/corelib/itemmodels/qitemselectionmodel.h
@@ -60,19 +60,17 @@ public:
     // ### Qt 6: remove them all, the compiler-generated ones are fine
     inline QItemSelectionRange(const QItemSelectionRange &other)
         : tl(other.tl), br(other.br) {}
-# ifdef Q_COMPILER_RVALUE_REFS
-    QItemSelectionRange(QItemSelectionRange &&other) Q_DECL_NOTHROW
+    QItemSelectionRange(QItemSelectionRange &&other) noexcept
         : tl(std::move(other.tl)), br(std::move(other.br)) {}
-    QItemSelectionRange &operator=(QItemSelectionRange &&other) Q_DECL_NOTHROW
+    QItemSelectionRange &operator=(QItemSelectionRange &&other) noexcept
     { tl = std::move(other.tl); br = std::move(other.br); return *this; }
-# endif
     QItemSelectionRange &operator=(const QItemSelectionRange &other)
     { tl = other.tl; br = other.br; return *this; }
 #endif // Qt < 6
     QItemSelectionRange(const QModelIndex &topL, const QModelIndex &bottomR) : tl(topL), br(bottomR) {}
     explicit QItemSelectionRange(const QModelIndex &index) : tl(index), br(tl) {}
 
-    void swap(QItemSelectionRange &other) Q_DECL_NOTHROW
+    void swap(QItemSelectionRange &other) noexcept
     {
         qSwap(tl, other.tl);
         qSwap(br, other.br);
@@ -249,7 +247,7 @@ Q_TEMPLATE_EXTERN template class Q_CORE_EXPORT QList<QItemSelectionRange>;
 class Q_CORE_EXPORT QItemSelection : public QList<QItemSelectionRange>
 {
 public:
-    QItemSelection() Q_DECL_NOTHROW : QList<QItemSelectionRange>() {}
+    QItemSelection() noexcept : QList<QItemSelectionRange>() {}
     QItemSelection(const QModelIndex &topLeft, const QModelIndex &bottomRight);
 
     // reusing QList::swap() here is OK!
diff --git a/src/corelib/itemmodels/qitemselectionmodel_p.h b/src/corelib/itemmodels/qitemselectionmodel_p.h
index e12a0c2928..ba85f22be3 100644
--- a/src/corelib/itemmodels/qitemselectionmodel_p.h
+++ b/src/corelib/itemmodels/qitemselectionmodel_p.h
@@ -62,7 +62,7 @@ class QItemSelectionModelPrivate: public QObjectPrivate
     Q_DECLARE_PUBLIC(QItemSelectionModel)
 public:
     QItemSelectionModelPrivate()
-      : model(0),
+      : model(nullptr),
         currentCommand(QItemSelectionModel::NoUpdate),
         tableSelected(false), tableColCount(0), tableRowCount(0) {}
 
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri
index 3f7bf3cd47..789bcb7927 100644
--- a/src/corelib/kernel/kernel.pri
+++ b/src/corelib/kernel/kernel.pri
@@ -7,7 +7,7 @@ HEADERS += \
         kernel/qdeadlinetimer.h \
         kernel/qdeadlinetimer_p.h \
         kernel/qelapsedtimer.h \
-        kernel/qeventloop.h\
+        kernel/qeventloop.h \
         kernel/qpointer.h \
         kernel/qcorecmdlineargs_p.h \
         kernel/qcoreapplication.h \
diff --git a/src/corelib/kernel/qabstracteventdispatcher.cpp b/src/corelib/kernel/qabstracteventdispatcher.cpp
index ea08ff571f..186c2e743b 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.cpp
+++ b/src/corelib/kernel/qabstracteventdispatcher.cpp
@@ -470,7 +470,11 @@ void QAbstractEventDispatcher::removeNativeEventFilter(QAbstractNativeEventFilte
     \sa installNativeEventFilter(), QAbstractNativeEventFilter::nativeEventFilter()
     \since 5.0
 */
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QAbstractEventDispatcher::filterNativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QAbstractEventDispatcher::filterNativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
 {
     Q_D(QAbstractEventDispatcher);
     if (!d->eventFilters.isEmpty()) {
diff --git a/src/corelib/kernel/qabstracteventdispatcher.h b/src/corelib/kernel/qabstracteventdispatcher.h
index bd8da5c35d..4ef9c068df 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.h
+++ b/src/corelib/kernel/qabstracteventdispatcher.h
@@ -110,7 +110,11 @@ public:
 
     void installNativeEventFilter(QAbstractNativeEventFilter *filterObj);
     void removeNativeEventFilter(QAbstractNativeEventFilter *filterObj);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool filterNativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
     bool filterNativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
 #if QT_DEPRECATED_SINCE(5, 0)
     QT_DEPRECATED bool filterEvent(void *message)
     { return filterNativeEvent("", message, nullptr); }
diff --git a/src/corelib/kernel/qabstractnativeeventfilter.cpp b/src/corelib/kernel/qabstractnativeeventfilter.cpp
index dcbb92f044..eaadea4c12 100644
--- a/src/corelib/kernel/qabstractnativeeventfilter.cpp
+++ b/src/corelib/kernel/qabstractnativeeventfilter.cpp
@@ -74,6 +74,7 @@ QAbstractNativeEventFilter::~QAbstractNativeEventFilter()
         eventDispatcher->removeNativeEventFilter(this);
 }
 
+// ### fixme Qt 6: result will be qintptr *
 /*!
     \fn bool QAbstractNativeEventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
 
diff --git a/src/corelib/kernel/qabstractnativeeventfilter.h b/src/corelib/kernel/qabstractnativeeventfilter.h
index d7baa42513..a468bffd61 100644
--- a/src/corelib/kernel/qabstractnativeeventfilter.h
+++ b/src/corelib/kernel/qabstractnativeeventfilter.h
@@ -52,7 +52,11 @@ public:
     QAbstractNativeEventFilter();
     virtual ~QAbstractNativeEventFilter();
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    virtual bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result) = 0;
+#else
     virtual bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) = 0;
+#endif
 
 private:
     Q_DISABLE_COPY(QAbstractNativeEventFilter)
diff --git a/src/corelib/kernel/qcore_foundation.mm b/src/corelib/kernel/qcore_foundation.mm
index 56eabc4b8c..623d462749 100644
--- a/src/corelib/kernel/qcore_foundation.mm
+++ b/src/corelib/kernel/qcore_foundation.mm
@@ -501,7 +501,7 @@ NSTimeZone *QTimeZone::toNSTimeZone() const
 
     \sa QRectF::fromCGRect()
 */
-CGRect QRect::toCGRect() const Q_DECL_NOTHROW
+CGRect QRect::toCGRect() const noexcept
 {
     return CGRectMake(x(), y(), width(), height());
 }
@@ -513,7 +513,7 @@ CGRect QRect::toCGRect() const Q_DECL_NOTHROW
 
     \sa fromCGRect()
 */
-CGRect QRectF::toCGRect() const Q_DECL_NOTHROW
+CGRect QRectF::toCGRect() const noexcept
 {
     return CGRectMake(x(), y(), width(), height());
 }
@@ -525,7 +525,7 @@ CGRect QRectF::toCGRect() const Q_DECL_NOTHROW
 
     \sa toCGRect()
 */
-QRectF QRectF::fromCGRect(CGRect rect) Q_DECL_NOTHROW
+QRectF QRectF::fromCGRect(CGRect rect) noexcept
 {
     return QRectF(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
 }
@@ -539,7 +539,7 @@ QRectF QRectF::fromCGRect(CGRect rect) Q_DECL_NOTHROW
 
     \sa QPointF::fromCGPoint()
 */
-CGPoint QPoint::toCGPoint() const Q_DECL_NOTHROW
+CGPoint QPoint::toCGPoint() const noexcept
 {
     return CGPointMake(x(), y());
 }
@@ -551,7 +551,7 @@ CGPoint QPoint::toCGPoint() const Q_DECL_NOTHROW
 
     \sa fromCGPoint()
 */
-CGPoint QPointF::toCGPoint() const Q_DECL_NOTHROW
+CGPoint QPointF::toCGPoint() const noexcept
 {
     return CGPointMake(x(), y());
 }
@@ -563,7 +563,7 @@ CGPoint QPointF::toCGPoint() const Q_DECL_NOTHROW
 
     \sa toCGPoint()
 */
-QPointF QPointF::fromCGPoint(CGPoint point) Q_DECL_NOTHROW
+QPointF QPointF::fromCGPoint(CGPoint point) noexcept
 {
     return QPointF(point.x, point.y);
 }
@@ -577,7 +577,7 @@ QPointF QPointF::fromCGPoint(CGPoint point) Q_DECL_NOTHROW
 
     \sa QSizeF::fromCGSize()
 */
-CGSize QSize::toCGSize() const Q_DECL_NOTHROW
+CGSize QSize::toCGSize() const noexcept
 {
     return CGSizeMake(width(), height());
 }
@@ -589,7 +589,7 @@ CGSize QSize::toCGSize() const Q_DECL_NOTHROW
 
     \sa fromCGSize()
 */
-CGSize QSizeF::toCGSize() const Q_DECL_NOTHROW
+CGSize QSizeF::toCGSize() const noexcept
 {
     return CGSizeMake(width(), height());
 }
@@ -601,7 +601,7 @@ CGSize QSizeF::toCGSize() const Q_DECL_NOTHROW
 
     \sa toCGSize()
 */
-QSizeF QSizeF::fromCGSize(CGSize size) Q_DECL_NOTHROW
+QSizeF QSizeF::fromCGSize(CGSize size) noexcept
 {
     return QSizeF(size.width, size.height);
 }
diff --git a/src/corelib/kernel/qcore_mac_objc.mm b/src/corelib/kernel/qcore_mac_objc.mm
index 6687eb88a5..6b51eb65d9 100644
--- a/src/corelib/kernel/qcore_mac_objc.mm
+++ b/src/corelib/kernel/qcore_mac_objc.mm
@@ -371,7 +371,7 @@ bool operator<(const KeyPair &entry, const Qt::Key &key)
 struct qtKey2CocoaKeySortLessThan
 {
     typedef bool result_type;
-    Q_DECL_CONSTEXPR result_type operator()(const KeyPair &entry1, const KeyPair &entry2) const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR result_type operator()(const KeyPair &entry1, const KeyPair &entry2) const noexcept
     {
         return entry1.qtKey < entry2.qtKey;
     }
diff --git a/src/corelib/kernel/qcore_mac_p.h b/src/corelib/kernel/qcore_mac_p.h
index f96e7358a2..920105ee9e 100644
--- a/src/corelib/kernel/qcore_mac_p.h
+++ b/src/corelib/kernel/qcore_mac_p.h
@@ -90,7 +90,7 @@ public:
     QAppleRefCounted(const QAppleRefCounted &other) : value(other.value) { if (value) RetainFunction(value); }
     ~QAppleRefCounted() { if (value) ReleaseFunction(value); }
     operator T() const { return value; }
-    void swap(QAppleRefCounted &other) Q_DECL_NOEXCEPT_EXPR(noexcept(qSwap(value, other.value)))
+    void swap(QAppleRefCounted &other) noexcept(noexcept(qSwap(value, other.value)))
     { qSwap(value, other.value); }
     QAppleRefCounted &operator=(const QAppleRefCounted &other)
     { QAppleRefCounted copy(other); swap(copy); return *this; }
diff --git a/src/corelib/kernel/qcore_unix_p.h b/src/corelib/kernel/qcore_unix_p.h
index 5a2a29a327..7f58813535 100644
--- a/src/corelib/kernel/qcore_unix_p.h
+++ b/src/corelib/kernel/qcore_unix_p.h
@@ -171,7 +171,7 @@ inline void qt_ignore_sigpipe()
         struct sigaction noaction;
         memset(&noaction, 0, sizeof(noaction));
         noaction.sa_handler = SIG_IGN;
-        ::sigaction(SIGPIPE, &noaction, 0);
+        ::sigaction(SIGPIPE, &noaction, nullptr);
         atom.store(1);
     }
 }
@@ -347,7 +347,7 @@ static inline pid_t qt_safe_waitpid(pid_t pid, int *status, int options)
 #endif
 
 // in qelapsedtimer_mac.cpp or qtimestamp_unix.cpp
-timespec qt_gettime() Q_DECL_NOTHROW;
+timespec qt_gettime() noexcept;
 void qt_nanosleep(timespec amount);
 QByteArray qt_readlink(const char *path);
 
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 9a3d5c6ef4..625790abb8 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -256,15 +256,6 @@ void QCoreApplicationPrivate::processCommandLineArguments()
 
 // Support for introspection
 
-#ifndef QT_NO_QOBJECT
-QSignalSpyCallbackSet Q_CORE_EXPORT qt_signal_spy_callback_set = { 0, 0, 0, 0 };
-
-void qt_register_signal_spy_callbacks(const QSignalSpyCallbackSet &callback_set)
-{
-    qt_signal_spy_callback_set = callback_set;
-}
-#endif
-
 extern "C" void Q_CORE_EXPORT qt_startup_hook()
 {
 }
@@ -378,7 +369,7 @@ uint QCoreApplicationPrivate::attribs =
     (1 << Qt::AA_SynthesizeMouseForUnhandledTabletEvents);
 
 struct QCoreApplicationData {
-    QCoreApplicationData() Q_DECL_NOTHROW {
+    QCoreApplicationData() noexcept {
         applicationNameSet = false;
         applicationVersionSet = false;
     }
@@ -866,11 +857,6 @@ void QCoreApplicationPrivate::init()
     eventDispatcherReady();
 #endif
 
-#ifdef QT_EVAL
-    extern void qt_core_eval_init(QCoreApplicationPrivate::Type);
-    qt_core_eval_init(application_type);
-#endif
-
     processCommandLineArguments();
 
     qt_call_pre_routines();
diff --git a/src/corelib/kernel/qcoreapplication_p.h b/src/corelib/kernel/qcoreapplication_p.h
index b3479414ab..14ca3efd7f 100644
--- a/src/corelib/kernel/qcoreapplication_p.h
+++ b/src/corelib/kernel/qcoreapplication_p.h
@@ -149,7 +149,7 @@ public:
     QString cachedApplicationDirPath;
     static QString *cachedApplicationFilePath;
     static void setApplicationFilePath(const QString &path);
-    static inline void clearApplicationFilePath() { delete cachedApplicationFilePath; cachedApplicationFilePath = 0; }
+    static inline void clearApplicationFilePath() { delete cachedApplicationFilePath; cachedApplicationFilePath = nullptr; }
 
 #ifndef QT_NO_QOBJECT
     void execCleanup();
diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp
index cacbb1e495..aabd32b4a8 100644
--- a/src/corelib/kernel/qcoreevent.cpp
+++ b/src/corelib/kernel/qcoreevent.cpp
@@ -421,7 +421,7 @@ struct QBasicAtomicBitField {
     QBasicAtomicInteger<uint> next;
     QBasicAtomicInteger<uint> data[NumInts];
 
-    bool allocateSpecific(int which) Q_DECL_NOTHROW
+    bool allocateSpecific(int which) noexcept
     {
         QBasicAtomicInteger<uint> &entry = data[which / BitsPerInt];
         const uint old = entry.load();
@@ -437,7 +437,7 @@ struct QBasicAtomicBitField {
         // loop.
     }
 
-    int allocateNext() Q_DECL_NOTHROW
+    int allocateNext() noexcept
     {
         // Unroll loop to iterate over ints, then bits? Would save
         // potentially a lot of cmpxchgs, because we can scan the
@@ -463,7 +463,7 @@ typedef QBasicAtomicBitField<QEvent::MaxUser - QEvent::User + 1> UserEventTypeRe
 
 static UserEventTypeRegistry userEventTypeRegistry;
 
-static inline int registerEventTypeZeroBased(int id) Q_DECL_NOTHROW
+static inline int registerEventTypeZeroBased(int id) noexcept
 {
     // if the type hint hasn't been registered yet, take it:
     if (id < UserEventTypeRegistry::NumBits && id >= 0 && userEventTypeRegistry.allocateSpecific(id))
@@ -486,7 +486,7 @@ static inline int registerEventTypeZeroBased(int id) Q_DECL_NOTHROW
     Returns -1 if all available values are already taken or the
     program is shutting down.
 */
-int QEvent::registerEventType(int hint) Q_DECL_NOTHROW
+int QEvent::registerEventType(int hint) noexcept
 {
     const int result = registerEventTypeZeroBased(QEvent::MaxUser - hint);
     return result < 0 ? -1 : QEvent::MaxUser - result ;
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index ac974ba411..05af1a6132 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -307,7 +307,7 @@ public:
     inline void accept() { m_accept = true; }
     inline void ignore() { m_accept = false; }
 
-    static int registerEventType(int hint = -1) Q_DECL_NOTHROW;
+    static int registerEventType(int hint = -1) noexcept;
 
 protected:
     QEventPrivate *d;
diff --git a/src/corelib/kernel/qdeadlinetimer.cpp b/src/corelib/kernel/qdeadlinetimer.cpp
index 49874b94b4..06b56bb09b 100644
--- a/src/corelib/kernel/qdeadlinetimer.cpp
+++ b/src/corelib/kernel/qdeadlinetimer.cpp
@@ -464,7 +464,7 @@ inline bool TimeReference::toNanoseconds(qint64 *result) const
 
     \sa hasExpired(), isForever(), remainingTime(), setRemainingTime()
 */
-QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) Q_DECL_NOTHROW
+QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) noexcept
     : t2(0)
 {
     setRemainingTime(msecs, type);
@@ -536,7 +536,7 @@ QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) Q_DECL_NOTHROW
 
     \sa setPreciseRemainingTime(), hasExpired(), isForever(), remainingTime()
 */
-void QDeadlineTimer::setRemainingTime(qint64 msecs, Qt::TimerType timerType) Q_DECL_NOTHROW
+void QDeadlineTimer::setRemainingTime(qint64 msecs, Qt::TimerType timerType) noexcept
 {
     if (msecs == -1) {
         *this = QDeadlineTimer(Forever, timerType);
@@ -562,7 +562,7 @@ void QDeadlineTimer::setRemainingTime(qint64 msecs, Qt::TimerType timerType) Q_D
 
     \sa setRemainingTime(), hasExpired(), isForever(), remainingTime()
 */
-void QDeadlineTimer::setPreciseRemainingTime(qint64 secs, qint64 nsecs, Qt::TimerType timerType) Q_DECL_NOTHROW
+void QDeadlineTimer::setPreciseRemainingTime(qint64 secs, qint64 nsecs, Qt::TimerType timerType) noexcept
 {
     if (secs == -1) {
         *this = QDeadlineTimer(Forever, timerType);
@@ -619,7 +619,7 @@ void QDeadlineTimer::setPreciseRemainingTime(qint64 secs, qint64 nsecs, Qt::Time
 
     \sa isForever(), remainingTime()
 */
-bool QDeadlineTimer::hasExpired() const Q_DECL_NOTHROW
+bool QDeadlineTimer::hasExpired() const noexcept
 {
     if (isForever())
         return false;
@@ -666,7 +666,7 @@ void QDeadlineTimer::setTimerType(Qt::TimerType timerType)
 
     \sa remainingTimeNSecs(), isForever(), hasExpired()
 */
-qint64 QDeadlineTimer::remainingTime() const Q_DECL_NOTHROW
+qint64 QDeadlineTimer::remainingTime() const noexcept
 {
     if (isForever())
         return -1;
@@ -694,7 +694,7 @@ qint64 QDeadlineTimer::remainingTime() const Q_DECL_NOTHROW
 
     \sa remainingTime(), isForever(), hasExpired()
 */
-qint64 QDeadlineTimer::remainingTimeNSecs() const Q_DECL_NOTHROW
+qint64 QDeadlineTimer::remainingTimeNSecs() const noexcept
 {
     if (isForever())
         return -1;
@@ -708,7 +708,7 @@ qint64 QDeadlineTimer::remainingTimeNSecs() const Q_DECL_NOTHROW
     not deal with Forever. In case of underflow the result is saturated to
     the minimum possible value, on overflow  - the maximum possible value.
 */
-qint64 QDeadlineTimer::rawRemainingTimeNSecs() const Q_DECL_NOTHROW
+qint64 QDeadlineTimer::rawRemainingTimeNSecs() const noexcept
 {
     QDeadlineTimer now = current(timerType());
     TimeReference ref(t1, t2);
@@ -744,7 +744,7 @@ qint64 QDeadlineTimer::rawRemainingTimeNSecs() const Q_DECL_NOTHROW
 
     \sa remainingTime(), deadlineNSecs(), setDeadline()
 */
-qint64 QDeadlineTimer::deadline() const Q_DECL_NOTHROW
+qint64 QDeadlineTimer::deadline() const noexcept
 {
     if (isForever())
         return TimeReference::Max;
@@ -777,7 +777,7 @@ qint64 QDeadlineTimer::deadline() const Q_DECL_NOTHROW
 
     \sa remainingTime(), deadlineNSecs()
 */
-qint64 QDeadlineTimer::deadlineNSecs() const Q_DECL_NOTHROW
+qint64 QDeadlineTimer::deadlineNSecs() const noexcept
 {
     if (isForever())
         return TimeReference::Max;
@@ -802,7 +802,7 @@ qint64 QDeadlineTimer::deadlineNSecs() const Q_DECL_NOTHROW
 
     \sa setPreciseDeadline(), deadline(), deadlineNSecs(), setRemainingTime()
 */
-void QDeadlineTimer::setDeadline(qint64 msecs, Qt::TimerType timerType) Q_DECL_NOTHROW
+void QDeadlineTimer::setDeadline(qint64 msecs, Qt::TimerType timerType) noexcept
 {
     if (msecs == TimeReference::Max) {
         *this = QDeadlineTimer(Forever, timerType);
@@ -829,7 +829,7 @@ void QDeadlineTimer::setDeadline(qint64 msecs, Qt::TimerType timerType) Q_DECL_N
 
     \sa setDeadline(), deadline(), deadlineNSecs(), setRemainingTime()
 */
-void QDeadlineTimer::setPreciseDeadline(qint64 secs, qint64 nsecs, Qt::TimerType timerType) Q_DECL_NOTHROW
+void QDeadlineTimer::setPreciseDeadline(qint64 secs, qint64 nsecs, Qt::TimerType timerType) noexcept
 {
     type = timerType;
 
@@ -849,7 +849,7 @@ void QDeadlineTimer::setPreciseDeadline(qint64 secs, qint64 nsecs, Qt::TimerType
     \note if \a dt was created as expired, its deadline is indeterminate and
     adding an amount of time may or may not cause it to become unexpired.
 */
-QDeadlineTimer QDeadlineTimer::addNSecs(QDeadlineTimer dt, qint64 nsecs) Q_DECL_NOTHROW
+QDeadlineTimer QDeadlineTimer::addNSecs(QDeadlineTimer dt, qint64 nsecs) noexcept
 {
     if (dt.isForever())
         return dt;
diff --git a/src/corelib/kernel/qdeadlinetimer.h b/src/corelib/kernel/qdeadlinetimer.h
index f9ad4063e5..9dd92481d2 100644
--- a/src/corelib/kernel/qdeadlinetimer.h
+++ b/src/corelib/kernel/qdeadlinetimer.h
@@ -63,49 +63,49 @@ class Q_CORE_EXPORT QDeadlineTimer
 public:
     enum ForeverConstant { Forever };
 
-    Q_DECL_CONSTEXPR QDeadlineTimer(Qt::TimerType type_ = Qt::CoarseTimer) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QDeadlineTimer(Qt::TimerType type_ = Qt::CoarseTimer) noexcept
         : t1(0), t2(0), type(type_) {}
-    Q_DECL_CONSTEXPR QDeadlineTimer(ForeverConstant, Qt::TimerType type_ = Qt::CoarseTimer) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QDeadlineTimer(ForeverConstant, Qt::TimerType type_ = Qt::CoarseTimer) noexcept
         : t1(std::numeric_limits<qint64>::max()), t2(0), type(type_) {}
-    explicit QDeadlineTimer(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
+    explicit QDeadlineTimer(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) noexcept;
 
-    void swap(QDeadlineTimer &other) Q_DECL_NOTHROW
+    void swap(QDeadlineTimer &other) noexcept
     { qSwap(t1, other.t1); qSwap(t2, other.t2); qSwap(type, other.type); }
 
-    Q_DECL_CONSTEXPR bool isForever() const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR bool isForever() const noexcept
     { return t1 == (std::numeric_limits<qint64>::max)(); }
-    bool hasExpired() const Q_DECL_NOTHROW;
+    bool hasExpired() const noexcept;
 
-    Qt::TimerType timerType() const Q_DECL_NOTHROW
+    Qt::TimerType timerType() const noexcept
     { return Qt::TimerType(type & 0xff); }
     void setTimerType(Qt::TimerType type);
 
-    qint64 remainingTime() const Q_DECL_NOTHROW;
-    qint64 remainingTimeNSecs() const Q_DECL_NOTHROW;
-    void setRemainingTime(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
+    qint64 remainingTime() const noexcept;
+    qint64 remainingTimeNSecs() const noexcept;
+    void setRemainingTime(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) noexcept;
     void setPreciseRemainingTime(qint64 secs, qint64 nsecs = 0,
-                                 Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
+                                 Qt::TimerType type = Qt::CoarseTimer) noexcept;
 
-    qint64 deadline() const Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
-    qint64 deadlineNSecs() const Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
-    void setDeadline(qint64 msecs, Qt::TimerType timerType = Qt::CoarseTimer) Q_DECL_NOTHROW;
+    qint64 deadline() const noexcept Q_DECL_PURE_FUNCTION;
+    qint64 deadlineNSecs() const noexcept Q_DECL_PURE_FUNCTION;
+    void setDeadline(qint64 msecs, Qt::TimerType timerType = Qt::CoarseTimer) noexcept;
     void setPreciseDeadline(qint64 secs, qint64 nsecs = 0,
-                            Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
+                            Qt::TimerType type = Qt::CoarseTimer) noexcept;
 
-    static QDeadlineTimer addNSecs(QDeadlineTimer dt, qint64 nsecs) Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
-    static QDeadlineTimer current(Qt::TimerType timerType = Qt::CoarseTimer) Q_DECL_NOTHROW;
+    static QDeadlineTimer addNSecs(QDeadlineTimer dt, qint64 nsecs) noexcept Q_DECL_PURE_FUNCTION;
+    static QDeadlineTimer current(Qt::TimerType timerType = Qt::CoarseTimer) noexcept;
 
-    friend bool operator==(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator==(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return d1.t1 == d2.t1 && d1.t2 == d2.t2; }
-    friend bool operator!=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator!=(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return !(d1 == d2); }
-    friend bool operator<(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator<(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return d1.t1 < d2.t1 || (d1.t1 == d2.t1 && d1.t2 < d2.t2); }
-    friend bool operator<=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator<=(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return d1 == d2 || d1 < d2; }
-    friend bool operator>(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator>(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return d2 < d1; }
-    friend bool operator>=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
+    friend bool operator>=(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return !(d1 < d2); }
 
     friend Q_CORE_EXPORT QDeadlineTimer operator+(QDeadlineTimer dt, qint64 msecs);
@@ -159,7 +159,7 @@ public:
             setPreciseRemainingTime(0, std::chrono::nanoseconds(remaining).count(), type_);
     }
 
-    std::chrono::nanoseconds remainingTimeAsDuration() const Q_DECL_NOTHROW
+    std::chrono::nanoseconds remainingTimeAsDuration() const noexcept
     {
         if (isForever())
             return std::chrono::nanoseconds::max();
@@ -185,7 +185,7 @@ private:
     unsigned t2;
     unsigned type;
 
-    qint64 rawRemainingTimeNSecs() const Q_DECL_NOTHROW;
+    qint64 rawRemainingTimeNSecs() const noexcept;
 
 public:
     // This is not a public function, it's here only for Qt's internal convenience...
diff --git a/src/corelib/kernel/qelapsedtimer.cpp b/src/corelib/kernel/qelapsedtimer.cpp
index e578b5b8b3..adb554b624 100644
--- a/src/corelib/kernel/qelapsedtimer.cpp
+++ b/src/corelib/kernel/qelapsedtimer.cpp
@@ -236,7 +236,7 @@ static const qint64 invalidData = Q_INT64_C(0x8000000000000000);
 
     \sa isValid(), start(), restart()
 */
-void QElapsedTimer::invalidate() Q_DECL_NOTHROW
+void QElapsedTimer::invalidate() noexcept
 {
      t1 = t2 = invalidData;
 }
@@ -247,7 +247,7 @@ void QElapsedTimer::invalidate() Q_DECL_NOTHROW
 
     \sa invalidate(), start(), restart()
 */
-bool QElapsedTimer::isValid() const Q_DECL_NOTHROW
+bool QElapsedTimer::isValid() const noexcept
 {
     return t1 != invalidData && t2 != invalidData;
 }
@@ -260,7 +260,7 @@ bool QElapsedTimer::isValid() const Q_DECL_NOTHROW
 
     \sa elapsed(), QDeadlineTimer
 */
-bool QElapsedTimer::hasExpired(qint64 timeout) const Q_DECL_NOTHROW
+bool QElapsedTimer::hasExpired(qint64 timeout) const noexcept
 {
     // if timeout is -1, quint64(timeout) is LLINT_MAX, so this will be
     // considered as never expired
diff --git a/src/corelib/kernel/qelapsedtimer.h b/src/corelib/kernel/qelapsedtimer.h
index 7954b41bf4..873847f6b6 100644
--- a/src/corelib/kernel/qelapsedtimer.h
+++ b/src/corelib/kernel/qelapsedtimer.h
@@ -62,28 +62,28 @@ public:
     {
     }
 
-    static ClockType clockType() Q_DECL_NOTHROW;
-    static bool isMonotonic() Q_DECL_NOTHROW;
+    static ClockType clockType() noexcept;
+    static bool isMonotonic() noexcept;
 
-    void start() Q_DECL_NOTHROW;
-    qint64 restart() Q_DECL_NOTHROW;
-    void invalidate() Q_DECL_NOTHROW;
-    bool isValid() const Q_DECL_NOTHROW;
+    void start() noexcept;
+    qint64 restart() noexcept;
+    void invalidate() noexcept;
+    bool isValid() const noexcept;
 
-    qint64 nsecsElapsed() const Q_DECL_NOTHROW;
-    qint64 elapsed() const Q_DECL_NOTHROW;
-    bool hasExpired(qint64 timeout) const Q_DECL_NOTHROW;
+    qint64 nsecsElapsed() const noexcept;
+    qint64 elapsed() const noexcept;
+    bool hasExpired(qint64 timeout) const noexcept;
 
-    qint64 msecsSinceReference() const Q_DECL_NOTHROW;
-    qint64 msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW;
-    qint64 secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW;
+    qint64 msecsSinceReference() const noexcept;
+    qint64 msecsTo(const QElapsedTimer &other) const noexcept;
+    qint64 secsTo(const QElapsedTimer &other) const noexcept;
 
-    bool operator==(const QElapsedTimer &other) const Q_DECL_NOTHROW
+    bool operator==(const QElapsedTimer &other) const noexcept
     { return t1 == other.t1 && t2 == other.t2; }
-    bool operator!=(const QElapsedTimer &other) const Q_DECL_NOTHROW
+    bool operator!=(const QElapsedTimer &other) const noexcept
     { return !(*this == other); }
 
-    friend bool Q_CORE_EXPORT operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW;
+    friend bool Q_CORE_EXPORT operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept;
 
 private:
     qint64 t1;
diff --git a/src/corelib/kernel/qelapsedtimer_generic.cpp b/src/corelib/kernel/qelapsedtimer_generic.cpp
index fdeb385188..fe959e3c94 100644
--- a/src/corelib/kernel/qelapsedtimer_generic.cpp
+++ b/src/corelib/kernel/qelapsedtimer_generic.cpp
@@ -48,7 +48,7 @@ QT_BEGIN_NAMESPACE
 
     \sa isMonotonic()
 */
-QElapsedTimer::ClockType QElapsedTimer::clockType() Q_DECL_NOTHROW
+QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
 {
     return SystemTime;
 }
@@ -60,7 +60,7 @@ QElapsedTimer::ClockType QElapsedTimer::clockType() Q_DECL_NOTHROW
 
     \sa clockType(), QElapsedTimer::ClockType
 */
-bool QElapsedTimer::isMonotonic() Q_DECL_NOTHROW
+bool QElapsedTimer::isMonotonic() noexcept
 {
     return false;
 }
@@ -75,7 +75,7 @@ bool QElapsedTimer::isMonotonic() Q_DECL_NOTHROW
 
     \sa restart(), invalidate(), elapsed()
 */
-void QElapsedTimer::start() Q_DECL_NOTHROW
+void QElapsedTimer::start() noexcept
 {
     restart();
 }
@@ -97,7 +97,7 @@ void QElapsedTimer::start() Q_DECL_NOTHROW
 
     \sa start(), invalidate(), elapsed(), isValid()
 */
-qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
+qint64 QElapsedTimer::restart() noexcept
 {
     qint64 old = t1;
     t1 = QDateTime::currentMSecsSinceEpoch();
@@ -118,7 +118,7 @@ qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
 
     \sa start(), restart(), hasExpired(), invalidate()
 */
-qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::nsecsElapsed() const noexcept
 {
     return elapsed() * 1000000;
 }
@@ -132,7 +132,7 @@ qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
 
     \sa start(), restart(), hasExpired(), isValid(), invalidate()
 */
-qint64 QElapsedTimer::elapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::elapsed() const noexcept
 {
     return QDateTime::currentMSecsSinceEpoch() - t1;
 }
@@ -152,7 +152,7 @@ qint64 QElapsedTimer::elapsed() const Q_DECL_NOTHROW
 
     \sa clockType(), elapsed()
 */
-qint64 QElapsedTimer::msecsSinceReference() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsSinceReference() const noexcept
 {
     return t1;
 }
@@ -167,7 +167,7 @@ qint64 QElapsedTimer::msecsSinceReference() const Q_DECL_NOTHROW
 
     \sa secsTo(), elapsed()
 */
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
 {
     qint64 diff = other.t1 - t1;
     return diff;
@@ -183,7 +183,7 @@ qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
 
     \sa msecsTo(), elapsed()
 */
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
 {
     return msecsTo(other) / 1000;
 }
@@ -197,12 +197,12 @@ qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
     and the other isn't. However, two invalid timers are equal and thus this
     function will return false.
 */
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW
+bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
 {
     return v1.t1 < v2.t1;
 }
 
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) Q_DECL_NOTHROW
+QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
 {
     QDeadlineTimer result;
     result.t1 = QDateTime::currentMSecsSinceEpoch() * 1000 * 1000;
diff --git a/src/corelib/kernel/qelapsedtimer_mac.cpp b/src/corelib/kernel/qelapsedtimer_mac.cpp
index 7490693991..5370cf7b3d 100644
--- a/src/corelib/kernel/qelapsedtimer_mac.cpp
+++ b/src/corelib/kernel/qelapsedtimer_mac.cpp
@@ -58,12 +58,12 @@ typedef __int128_t LargeInt;
 typedef qint64 LargeInt;
 #endif
 
-QElapsedTimer::ClockType QElapsedTimer::clockType() Q_DECL_NOTHROW
+QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
 {
     return MachAbsoluteTime;
 }
 
-bool QElapsedTimer::isMonotonic() Q_DECL_NOTHROW
+bool QElapsedTimer::isMonotonic() noexcept
 {
     return true;
 }
@@ -87,7 +87,7 @@ static qint64 absoluteToMSecs(qint64 cpuTime)
     return absoluteToNSecs(cpuTime) / 1000000;
 }
 
-timespec qt_gettime() Q_DECL_NOTHROW
+timespec qt_gettime() noexcept
 {
     timespec tv;
 
@@ -107,13 +107,13 @@ void qt_nanosleep(timespec amount)
     EINTR_LOOP(r, nanosleep(&amount, &amount));
 }
 
-void QElapsedTimer::start() Q_DECL_NOTHROW
+void QElapsedTimer::start() noexcept
 {
     t1 = mach_absolute_time();
     t2 = 0;
 }
 
-qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
+qint64 QElapsedTimer::restart() noexcept
 {
     qint64 old = t1;
     t1 = mach_absolute_time();
@@ -122,39 +122,39 @@ qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
     return absoluteToMSecs(t1 - old);
 }
 
-qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::nsecsElapsed() const noexcept
 {
     uint64_t cpu_time = mach_absolute_time();
     return absoluteToNSecs(cpu_time - t1);
 }
 
-qint64 QElapsedTimer::elapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::elapsed() const noexcept
 {
     uint64_t cpu_time = mach_absolute_time();
     return absoluteToMSecs(cpu_time - t1);
 }
 
-qint64 QElapsedTimer::msecsSinceReference() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsSinceReference() const noexcept
 {
     return absoluteToMSecs(t1);
 }
 
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
 {
     return absoluteToMSecs(other.t1 - t1);
 }
 
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
 {
     return msecsTo(other) / 1000;
 }
 
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW
+bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
 {
     return v1.t1 < v2.t1;
 }
 
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) Q_DECL_NOTHROW
+QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
 {
     Q_STATIC_ASSERT(!QDeadlineTimerNanosecondsInT2);
     QDeadlineTimer result;
diff --git a/src/corelib/kernel/qelapsedtimer_unix.cpp b/src/corelib/kernel/qelapsedtimer_unix.cpp
index e166d4e3d2..ccc2eeafa3 100644
--- a/src/corelib/kernel/qelapsedtimer_unix.cpp
+++ b/src/corelib/kernel/qelapsedtimer_unix.cpp
@@ -150,12 +150,12 @@ static int unixCheckClockType()
 #endif
 }
 
-bool QElapsedTimer::isMonotonic() Q_DECL_NOTHROW
+bool QElapsedTimer::isMonotonic() noexcept
 {
     return clockType() == MonotonicClock;
 }
 
-QElapsedTimer::ClockType QElapsedTimer::clockType() Q_DECL_NOTHROW
+QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
 {
     return unixCheckClockType() == CLOCK_REALTIME ? SystemTime : MonotonicClock;
 }
@@ -169,7 +169,7 @@ static inline void do_gettime(qint64 *sec, qint64 *frac)
 }
 
 // used in qcore_unix.cpp and qeventdispatcher_unix.cpp
-struct timespec qt_gettime() Q_DECL_NOTHROW
+struct timespec qt_gettime() noexcept
 {
     qint64 sec, frac;
     do_gettime(&sec, &frac);
@@ -204,17 +204,17 @@ static qint64 elapsedAndRestart(qint64 sec, qint64 frac,
     return (sec * Q_INT64_C(1000000000) + frac) / Q_INT64_C(1000000);
 }
 
-void QElapsedTimer::start() Q_DECL_NOTHROW
+void QElapsedTimer::start() noexcept
 {
     do_gettime(&t1, &t2);
 }
 
-qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
+qint64 QElapsedTimer::restart() noexcept
 {
     return elapsedAndRestart(t1, t2, &t1, &t2);
 }
 
-qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::nsecsElapsed() const noexcept
 {
     qint64 sec, frac;
     do_gettime(&sec, &frac);
@@ -223,34 +223,34 @@ qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
     return sec * Q_INT64_C(1000000000) + frac;
 }
 
-qint64 QElapsedTimer::elapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::elapsed() const noexcept
 {
     return nsecsElapsed() / Q_INT64_C(1000000);
 }
 
-qint64 QElapsedTimer::msecsSinceReference() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsSinceReference() const noexcept
 {
     return t1 * Q_INT64_C(1000) + t2 / Q_INT64_C(1000000);
 }
 
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
 {
     qint64 secs = other.t1 - t1;
     qint64 fraction = other.t2 - t2;
     return (secs * Q_INT64_C(1000000000) + fraction) / Q_INT64_C(1000000);
 }
 
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
 {
     return other.t1 - t1;
 }
 
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW
+bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
 {
     return v1.t1 < v2.t1 || (v1.t1 == v2.t1 && v1.t2 < v2.t2);
 }
 
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) Q_DECL_NOTHROW
+QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
 {
     Q_STATIC_ASSERT(QDeadlineTimerNanosecondsInT2);
     QDeadlineTimer result;
diff --git a/src/corelib/kernel/qelapsedtimer_win.cpp b/src/corelib/kernel/qelapsedtimer_win.cpp
index 3beb158b8a..8becb17461 100644
--- a/src/corelib/kernel/qelapsedtimer_win.cpp
+++ b/src/corelib/kernel/qelapsedtimer_win.cpp
@@ -101,25 +101,25 @@ quint64 qt_msectime()
     return ticksToNanoseconds(getTickCount()) / 1000000;
 }
 
-QElapsedTimer::ClockType QElapsedTimer::clockType() Q_DECL_NOTHROW
+QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
 {
     resolveCounterFrequency();
 
     return counterFrequency > 0 ? PerformanceCounter : TickCounter;
 }
 
-bool QElapsedTimer::isMonotonic() Q_DECL_NOTHROW
+bool QElapsedTimer::isMonotonic() noexcept
 {
     return true;
 }
 
-void QElapsedTimer::start() Q_DECL_NOTHROW
+void QElapsedTimer::start() noexcept
 {
     t1 = getTickCount();
     t2 = 0;
 }
 
-qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
+qint64 QElapsedTimer::restart() noexcept
 {
     qint64 oldt1 = t1;
     t1 = getTickCount();
@@ -127,40 +127,40 @@ qint64 QElapsedTimer::restart() Q_DECL_NOTHROW
     return ticksToNanoseconds(t1 - oldt1) / 1000000;
 }
 
-qint64 QElapsedTimer::nsecsElapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::nsecsElapsed() const noexcept
 {
     qint64 elapsed = getTickCount() - t1;
     return ticksToNanoseconds(elapsed);
 }
 
-qint64 QElapsedTimer::elapsed() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::elapsed() const noexcept
 {
     qint64 elapsed = getTickCount() - t1;
     return ticksToNanoseconds(elapsed) / 1000000;
 }
 
-qint64 QElapsedTimer::msecsSinceReference() const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsSinceReference() const noexcept
 {
     return ticksToNanoseconds(t1) / 1000000;
 }
 
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
 {
     qint64 difference = other.t1 - t1;
     return ticksToNanoseconds(difference) / 1000000;
 }
 
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW
+qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
 {
     return msecsTo(other) / 1000;
 }
 
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW
+bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
 {
     return (v1.t1 - v2.t1) < 0;
 }
 
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) Q_DECL_NOTHROW
+QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
 {
     Q_STATIC_ASSERT(!QDeadlineTimerNanosecondsInT2);
     QDeadlineTimer result;
diff --git a/src/corelib/kernel/qeventdispatcher_cf.mm b/src/corelib/kernel/qeventdispatcher_cf.mm
index b7b379e2c1..33c231987f 100644
--- a/src/corelib/kernel/qeventdispatcher_cf.mm
+++ b/src/corelib/kernel/qeventdispatcher_cf.mm
@@ -190,7 +190,7 @@ Q_ENUM_PRINTER(Result);
 
 QDebug operator<<(QDebug s, timespec tv)
 {
-    s << tv.tv_sec << "." << qSetFieldWidth(9) << qSetPadChar(QChar(48)) << tv.tv_nsec << reset;
+    s << tv.tv_sec << "." << qSetFieldWidth(9) << qSetPadChar(QChar(48)) << tv.tv_nsec << Qt::reset;
     return s;
 }
 
diff --git a/src/corelib/kernel/qeventdispatcher_glib_p.h b/src/corelib/kernel/qeventdispatcher_glib_p.h
index 88ff316ee5..313825d0a7 100644
--- a/src/corelib/kernel/qeventdispatcher_glib_p.h
+++ b/src/corelib/kernel/qeventdispatcher_glib_p.h
@@ -66,8 +66,8 @@ class Q_CORE_EXPORT QEventDispatcherGlib : public QAbstractEventDispatcher
     Q_DECLARE_PRIVATE(QEventDispatcherGlib)
 
 public:
-    explicit QEventDispatcherGlib(QObject *parent = 0);
-    explicit QEventDispatcherGlib(GMainContext *context, QObject *parent = 0);
+    explicit QEventDispatcherGlib(QObject *parent = nullptr);
+    explicit QEventDispatcherGlib(GMainContext *context, QObject *parent = nullptr);
     ~QEventDispatcherGlib();
 
     bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
@@ -102,7 +102,7 @@ class Q_CORE_EXPORT QEventDispatcherGlibPrivate : public QAbstractEventDispatche
 {
 
 public:
-    QEventDispatcherGlibPrivate(GMainContext *context = 0);
+    QEventDispatcherGlibPrivate(GMainContext *context = nullptr);
     GMainContext *mainContext;
     GPostEventSource *postEventSource;
     GSocketNotifierSource *socketNotifierSource;
diff --git a/src/corelib/kernel/qeventdispatcher_unix_p.h b/src/corelib/kernel/qeventdispatcher_unix_p.h
index 0fd068b074..f37edfc967 100644
--- a/src/corelib/kernel/qeventdispatcher_unix_p.h
+++ b/src/corelib/kernel/qeventdispatcher_unix_p.h
@@ -64,10 +64,10 @@ class QEventDispatcherUNIXPrivate;
 
 struct Q_CORE_EXPORT QSocketNotifierSetUNIX final
 {
-    inline QSocketNotifierSetUNIX() Q_DECL_NOTHROW;
+    inline QSocketNotifierSetUNIX() noexcept;
 
-    inline bool isEmpty() const Q_DECL_NOTHROW;
-    inline short events() const Q_DECL_NOTHROW;
+    inline bool isEmpty() const noexcept;
+    inline short events() const noexcept;
 
     QSocketNotifier *notifiers[3];
 };
@@ -102,7 +102,7 @@ class Q_CORE_EXPORT QEventDispatcherUNIX : public QAbstractEventDispatcher
     Q_DECLARE_PRIVATE(QEventDispatcherUNIX)
 
 public:
-    explicit QEventDispatcherUNIX(QObject *parent = 0);
+    explicit QEventDispatcherUNIX(QObject *parent = nullptr);
     ~QEventDispatcherUNIX();
 
     bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
@@ -123,7 +123,7 @@ public:
     void flush() override;
 
 protected:
-    QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = 0);
+    QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = nullptr);
 };
 
 class Q_CORE_EXPORT QEventDispatcherUNIXPrivate : public QAbstractEventDispatcherPrivate
@@ -150,19 +150,19 @@ public:
     QAtomicInt interrupt; // bool
 };
 
-inline QSocketNotifierSetUNIX::QSocketNotifierSetUNIX() Q_DECL_NOTHROW
+inline QSocketNotifierSetUNIX::QSocketNotifierSetUNIX() noexcept
 {
-    notifiers[0] = 0;
-    notifiers[1] = 0;
-    notifiers[2] = 0;
+    notifiers[0] = nullptr;
+    notifiers[1] = nullptr;
+    notifiers[2] = nullptr;
 }
 
-inline bool QSocketNotifierSetUNIX::isEmpty() const Q_DECL_NOTHROW
+inline bool QSocketNotifierSetUNIX::isEmpty() const noexcept
 {
     return !notifiers[0] && !notifiers[1] && !notifiers[2];
 }
 
-inline short QSocketNotifierSetUNIX::events() const Q_DECL_NOTHROW
+inline short QSocketNotifierSetUNIX::events() const noexcept
 {
     short result = 0;
 
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index 685d765adb..84378454ca 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -136,7 +136,11 @@ LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPA
     msg.wParam = wp;
     msg.lParam = lp;
     QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr result;
+#else
     long result;
+#endif
     if (!dispatcher) {
         if (message == WM_TIMER)
             KillTimer(hwnd, wp);
diff --git a/src/corelib/kernel/qfunctions_fake_env_p.h b/src/corelib/kernel/qfunctions_fake_env_p.h
index 7010d2cf5d..68d17ed4a1 100644
--- a/src/corelib/kernel/qfunctions_fake_env_p.h
+++ b/src/corelib/kernel/qfunctions_fake_env_p.h
@@ -72,8 +72,8 @@ Q_DECLARE_TYPEINFO(Variable, Q_MOVABLE_TYPE);
 struct NameEquals {
     typedef bool result_type;
     const char *name;
-    explicit NameEquals(const char *name) Q_DECL_NOTHROW : name(name) {}
-    result_type operator()(const Variable &other) const Q_DECL_NOTHROW
+    explicit NameEquals(const char *name) noexcept : name(name) {}
+    result_type operator()(const Variable &other) const noexcept
     { return qstrcmp(other.name, name) == 0; }
 };
 
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index 8b2febbbb7..56217262f2 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -341,7 +341,7 @@ const char *QMetaObject::className() const
 
     \since 5.7
 */
-bool QMetaObject::inherits(const QMetaObject *metaObject) const Q_DECL_NOEXCEPT
+bool QMetaObject::inherits(const QMetaObject *metaObject) const noexcept
 {
     const QMetaObject *m = this;
     do {
@@ -3023,6 +3023,18 @@ int QMetaProperty::propertyIndex() const
 }
 
 /*!
+  \since 5.14
+
+  Returns this property's index relative within the enclosing meta object.
+*/
+int QMetaProperty::relativePropertyIndex() const
+{
+    if (!mobj)
+        return -1;
+    return idx;
+}
+
+/*!
     Returns \c true if the property's type is an enumeration value that
     is used as a flag; otherwise returns \c false.
 
diff --git a/src/corelib/kernel/qmetaobject.h b/src/corelib/kernel/qmetaobject.h
index 51ace3d5f7..10b14a7e03 100644
--- a/src/corelib/kernel/qmetaobject.h
+++ b/src/corelib/kernel/qmetaobject.h
@@ -183,7 +183,7 @@ private:
     // signature() has been renamed to methodSignature() in Qt 5.
     // Warning, that function returns a QByteArray; check the life time if
     // you convert to char*.
-    char *signature(struct renamedInQt5_warning_checkTheLifeTime * = nullptr) Q_DECL_EQ_DELETE;
+    char *signature(struct renamedInQt5_warning_checkTheLifeTime * = nullptr) = delete;
 #endif
     static QMetaMethod fromSignalImpl(const QMetaObject *, void **);
 
@@ -253,6 +253,7 @@ public:
     QVariant::Type type() const;
     int userType() const;
     int propertyIndex() const;
+    int relativePropertyIndex() const;
 
     bool isReadable() const;
     bool isWritable() const;
diff --git a/src/corelib/kernel/qmetaobject_moc_p.h b/src/corelib/kernel/qmetaobject_moc_p.h
index ad258acfcd..8c7900767b 100644
--- a/src/corelib/kernel/qmetaobject_moc_p.h
+++ b/src/corelib/kernel/qmetaobject_moc_p.h
@@ -138,7 +138,7 @@ static QByteArray normalizeTypeInternal(const char *t, const char *e, bool fixSc
             { "struct ", 7 },
             { "class ", 6 },
             { "enum ", 5 },
-            { 0, 0 }
+            { nullptr, 0 }
         };
         int i = 0;
         do {
@@ -146,7 +146,7 @@ static QByteArray normalizeTypeInternal(const char *t, const char *e, bool fixSc
                 t += optional[i].len;
                 break;
             }
-        } while (optional[++i].keyword != 0);
+        } while (optional[++i].keyword != nullptr);
     }
 
     bool star = false;
diff --git a/src/corelib/kernel/qmetaobject_p.h b/src/corelib/kernel/qmetaobject_p.h
index 522bd78e42..0cd9da2eac 100644
--- a/src/corelib/kernel/qmetaobject_p.h
+++ b/src/corelib/kernel/qmetaobject_p.h
@@ -54,6 +54,7 @@
 
 #include <QtCore/qglobal.h>
 #include <QtCore/qobjectdefs.h>
+#include <QtCore/qmutex.h>
 #ifndef QT_NO_QOBJECT
 #include <private/qobject_p.h> // For QObjectPrivate::Connection
 #endif
@@ -168,7 +169,6 @@ Q_DECLARE_TYPEINFO(QArgumentType, Q_MOVABLE_TYPE);
 typedef QVarLengthArray<QArgumentType, 10> QArgumentTypeArray;
 
 class QMetaMethodPrivate;
-class QMutex;
 
 struct QMetaObjectPrivate
 {
@@ -226,15 +226,15 @@ struct QMetaObjectPrivate
     static QObjectPrivate::Connection *connect(const QObject *sender, int signal_index,
                         const QMetaObject *smeta,
                         const QObject *receiver, int method_index_relative,
-                        const QMetaObject *rmeta = 0,
-                        int type = 0, int *types = 0);
+                        const QMetaObject *rmeta = nullptr,
+                        int type = 0, int *types = nullptr);
     static bool disconnect(const QObject *sender, int signal_index,
                            const QMetaObject *smeta,
                            const QObject *receiver, int method_index, void **slot,
                            DisconnectType = DisconnectAll);
-    static inline bool disconnectHelper(QObjectPrivate::Connection *c,
+    static inline bool disconnectHelper(QObjectPrivate::ConnectionData *connections, int signalIndex,
                                         const QObject *receiver, int method_index, void **slot,
-                                        QMutex *senderMutex, DisconnectType = DisconnectAll);
+                                        QBasicMutex *senderMutex, DisconnectType = DisconnectAll);
 #endif
 };
 
diff --git a/src/corelib/kernel/qmetaobjectbuilder_p.h b/src/corelib/kernel/qmetaobjectbuilder_p.h
index 6100835bad..6d43be7811 100644
--- a/src/corelib/kernel/qmetaobjectbuilder_p.h
+++ b/src/corelib/kernel/qmetaobjectbuilder_p.h
@@ -173,7 +173,7 @@ public:
     void setStaticMetacallFunction(QMetaObjectBuilder::StaticMetacallFunction value);
 
     QMetaObject *toMetaObject() const;
-    QByteArray toRelocatableData(bool * = 0) const;
+    QByteArray toRelocatableData(bool * = nullptr) const;
     static void fromRelocatableData(QMetaObject *, const QMetaObject *, const QByteArray &);
 
 #ifndef QT_NO_DATASTREAM
@@ -196,7 +196,7 @@ private:
 class Q_CORE_EXPORT QMetaMethodBuilder
 {
 public:
-    QMetaMethodBuilder() : _mobj(0), _index(0) {}
+    QMetaMethodBuilder() : _mobj(nullptr), _index(0) {}
 
     int index() const;
 
@@ -238,7 +238,7 @@ private:
 class Q_CORE_EXPORT QMetaPropertyBuilder
 {
 public:
-    QMetaPropertyBuilder() : _mobj(0), _index(0) {}
+    QMetaPropertyBuilder() : _mobj(nullptr), _index(0) {}
 
     int index() const { return _index; }
 
@@ -294,7 +294,7 @@ private:
 class Q_CORE_EXPORT QMetaEnumBuilder
 {
 public:
-    QMetaEnumBuilder() : _mobj(0), _index(0) {}
+    QMetaEnumBuilder() : _mobj(nullptr), _index(0) {}
 
     int index() const { return _index; }
 
diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 45d0b5df6c..855d36794d 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -51,6 +51,7 @@
 #include "quuid.h"
 #include "qvariant.h"
 #include "qdatastream.h"
+#include "qregexp.h"
 #include "qmetatypeswitcher_p.h"
 
 #if QT_CONFIG(regularexpression)
@@ -915,7 +916,7 @@ template <int... TypeIds> struct MetaTypeOffsets<QtPrivate::IndexesList<TypeIds.
     short offsets[sizeof...(TypeIds)];
     constexpr MetaTypeOffsets() : offsets{calculateOffsetForTypeId(TypeIds)...} {}
 
-    const char *operator[](int typeId) const Q_DECL_NOTHROW
+    const char *operator[](int typeId) const noexcept
     {
         short o = offsets[typeId];
         return o < 0 ? nullptr : metaTypeStrings + o;
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index a47fbfe28d..79ee5eec11 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -849,7 +849,7 @@ struct VariantData
     const uint flags;
 private:
     // copy constructor allowed to be implicit to silence level 4 warning from MSVC
-    VariantData &operator=(const VariantData &) Q_DECL_EQ_DELETE;
+    VariantData &operator=(const VariantData &) = delete;
 };
 
 template<typename const_iterator>
diff --git a/src/corelib/kernel/qmetatype_p.h b/src/corelib/kernel/qmetatype_p.h
index 94e9228778..0846193e66 100644
--- a/src/corelib/kernel/qmetatype_p.h
+++ b/src/corelib/kernel/qmetatype_p.h
@@ -87,7 +87,7 @@ template<> \
 class QTypeModuleInfo<TYPE > \
 { \
 public: \
-    enum Module { \
+    enum Module : bool { \
         IsCore = (((MODULE) == (QModulesPrivate::Core))), \
         IsWidget = (((MODULE) == (QModulesPrivate::Widgets))), \
         IsGui = (((MODULE) == (QModulesPrivate::Gui))), \
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 94b7ccd761..d5ef3ff816 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Copyright (C) 2013 Olivier Goffart <ogoffart@woboq.com>
 ** Contact: https://www.qt.io/licensing/
@@ -77,6 +77,12 @@ QT_BEGIN_NAMESPACE
 
 static int DIRECT_CONNECTION_ONLY = 0;
 
+Q_CORE_EXPORT QBasicAtomicPointer<QSignalSpyCallbackSet> qt_signal_spy_callback_set = Q_BASIC_ATOMIC_INITIALIZER(nullptr);
+
+void qt_register_signal_spy_callbacks(QSignalSpyCallbackSet *callback_set)
+{
+    qt_signal_spy_callback_set.store(callback_set);
+}
 
 QDynamicMetaObjectData::~QDynamicMetaObjectData()
 {
@@ -146,10 +152,9 @@ static QBasicMutex _q_ObjectMutexPool[131];
  * \internal
  * mutex to be locked when accessing the connectionlists or the senders list
  */
-static inline QMutex *signalSlotLock(const QObject *o)
+static inline QBasicMutex *signalSlotLock(const QObject *o)
 {
-    return static_cast<QMutex *>(&_q_ObjectMutexPool[
-        uint(quintptr(o)) % sizeof(_q_ObjectMutexPool)/sizeof(QBasicMutex)]);
+    return &_q_ObjectMutexPool[uint(quintptr(o)) % sizeof(_q_ObjectMutexPool)/sizeof(QBasicMutex)];
 }
 
 #if QT_VERSION < 0x60000
@@ -160,39 +165,6 @@ extern "C" Q_CORE_EXPORT void qt_removeObject(QObject *)
 {}
 #endif
 
-struct QConnectionSenderSwitcher {
-    QObject *receiver;
-    QObjectPrivate::Sender *previousSender;
-    QObjectPrivate::Sender currentSender;
-    bool switched;
-
-    inline QConnectionSenderSwitcher() : switched(false) {}
-
-    inline QConnectionSenderSwitcher(QObject *receiver, QObject *sender, int signal_absolute_id)
-    {
-        switchSender(receiver, sender, signal_absolute_id);
-    }
-
-    inline void switchSender(QObject *receiver, QObject *sender, int signal_absolute_id)
-    {
-        this->receiver = receiver;
-        currentSender.sender = sender;
-        currentSender.signal = signal_absolute_id;
-        currentSender.ref = 1;
-        previousSender = QObjectPrivate::setCurrentSender(receiver, &currentSender);
-        switched = true;
-    }
-
-    inline ~QConnectionSenderSwitcher()
-    {
-        if (switched)
-            QObjectPrivate::resetCurrentSender(receiver, &currentSender, previousSender);
-    }
-private:
-    Q_DISABLE_COPY(QConnectionSenderSwitcher)
-};
-
-
 void (*QAbstractDeclarativeData::destroyed)(QAbstractDeclarativeData *, QObject *) = 0;
 void (*QAbstractDeclarativeData::destroyed_qml1)(QAbstractDeclarativeData *, QObject *) = 0;
 void (*QAbstractDeclarativeData::parentChanged)(QAbstractDeclarativeData *, QObject *, QObject *) = 0;
@@ -209,7 +181,7 @@ QMetaObject *QObjectData::dynamicMetaObject() const
 }
 
 QObjectPrivate::QObjectPrivate(int version)
-    : threadData(0), connectionLists(0), senders(0), currentSender(0), currentChildBeingDeleted(0)
+    : threadData(0), currentChildBeingDeleted(0)
 {
 #ifdef QT_BUILD_INTERNAL
     // Don't check the version parameter in internal builds.
@@ -232,7 +204,6 @@ QObjectPrivate::QObjectPrivate(int version)
     receiveChildEvents = true;
     postedEvents = 0;
     extraData = 0;
-    connectedSignals[0] = connectedSignals[1] = 0;
     metaObject = 0;
     isWindow = false;
     deleteLaterCalled = false;
@@ -285,59 +256,22 @@ static void computeOffsets(const QMetaObject *metaobject, int *signalOffset, int
     }
 }
 
-/*
-    This vector contains the all connections from an object.
-
-    Each object may have one vector containing the lists of
-    connections for a given signal. The index in the vector correspond
-    to the signal index. The signal index is the one returned by
-    QObjectPrivate::signalIndex (not QMetaObject::indexOfSignal).
-    Negative index means connections to all signals.
-
-    This vector is protected by the object mutex (signalSlotMutexes())
-
-    Each Connection is also part of a 'senders' linked list. The mutex
-    of the receiver must be locked when touching the pointers of this
-    linked list.
-*/
-class QObjectConnectionListVector : public QVector<QObjectPrivate::ConnectionList>
-{
-public:
-    bool orphaned; //the QObject owner of this vector has been destroyed while the vector was inUse
-    bool dirty; //some Connection have been disconnected (their receiver is 0) but not removed from the list yet
-    int inUse; //number of functions that are currently accessing this object or its connections
-    QObjectPrivate::ConnectionList allsignals;
-
-    QObjectConnectionListVector()
-        : QVector<QObjectPrivate::ConnectionList>(), orphaned(false), dirty(false), inUse(0)
-    { }
-
-    QObjectPrivate::ConnectionList &operator[](int at)
-    {
-        if (at < 0)
-            return allsignals;
-        return QVector<QObjectPrivate::ConnectionList>::operator[](at);
-    }
-};
-
 // Used by QAccessibleWidget
 bool QObjectPrivate::isSender(const QObject *receiver, const char *signal) const
 {
     Q_Q(const QObject);
     int signal_index = signalIndex(signal);
-    if (signal_index < 0)
+    ConnectionData *cd = connections.load();
+    if (signal_index < 0 || !cd)
         return false;
-    QMutexLocker locker(signalSlotLock(q));
-    if (connectionLists) {
-        if (signal_index < connectionLists->count()) {
-            const QObjectPrivate::Connection *c =
-                connectionLists->at(signal_index).first;
-
-            while (c) {
-                if (c->receiver == receiver)
-                    return true;
-                c = c->nextConnectionList;
-            }
+    QBasicMutexLocker locker(signalSlotLock(q));
+    if (signal_index < cd->signalVectorCount()) {
+        const QObjectPrivate::Connection *c = cd->signalVector.load()->at(signal_index).first.load();
+
+        while (c) {
+            if (c->receiver.load() == receiver)
+                return true;
+            c = c->nextConnectionList.load();
         }
     }
     return false;
@@ -346,21 +280,19 @@ bool QObjectPrivate::isSender(const QObject *receiver, const char *signal) const
 // Used by QAccessibleWidget
 QObjectList QObjectPrivate::receiverList(const char *signal) const
 {
-    Q_Q(const QObject);
     QObjectList returnValue;
     int signal_index = signalIndex(signal);
-    if (signal_index < 0)
+    ConnectionData *cd = connections.load();
+    if (signal_index < 0 || !cd)
         return returnValue;
-    QMutexLocker locker(signalSlotLock(q));
-    if (connectionLists) {
-        if (signal_index < connectionLists->count()) {
-            const QObjectPrivate::Connection *c = connectionLists->at(signal_index).first;
-
-            while (c) {
-                if (c->receiver)
-                    returnValue << c->receiver;
-                c = c->nextConnectionList;
-            }
+    if (signal_index < cd->signalVectorCount()) {
+        const QObjectPrivate::Connection *c = cd->signalVector.load()->at(signal_index).first.load();
+
+        while (c) {
+            QObject *r = c->receiver.load();
+            if (r)
+                returnValue << r;
+            c = c->nextConnectionList.load();
         }
     }
     return returnValue;
@@ -370,9 +302,12 @@ QObjectList QObjectPrivate::receiverList(const char *signal) const
 QObjectList QObjectPrivate::senderList() const
 {
     QObjectList returnValue;
-    QMutexLocker locker(signalSlotLock(q_func()));
-    for (Connection *c = senders; c; c = c->next)
-        returnValue << c->sender;
+    ConnectionData *cd = connections.load();
+    if (cd) {
+        QBasicMutexLocker locker(signalSlotLock(q_func()));
+        for (Connection *c = cd->senders; c; c = c->next)
+            returnValue << c->sender;
+    }
     return returnValue;
 }
 
@@ -389,79 +324,187 @@ QObjectList QObjectPrivate::senderList() const
 void QObjectPrivate::addConnection(int signal, Connection *c)
 {
     Q_ASSERT(c->sender == q_ptr);
-    if (!connectionLists)
-        connectionLists = new QObjectConnectionListVector();
-    if (signal >= connectionLists->count())
-        connectionLists->resize(signal + 1);
-
-    ConnectionList &connectionList = (*connectionLists)[signal];
-    if (connectionList.last) {
-        connectionList.last->nextConnectionList = c;
+    ensureConnectionData();
+    ConnectionData *cd = connections.load();
+    cd->resizeSignalVector(signal + 1);
+
+    ConnectionList &connectionList = cd->connectionsForSignal(signal);
+    if (connectionList.last.load()) {
+        Q_ASSERT(connectionList.last.load()->receiver.load());
+        connectionList.last.load()->nextConnectionList.store(c);
     } else {
-        connectionList.first = c;
+        connectionList.first.store(c);
     }
-    connectionList.last = c;
+    c->id = ++cd->currentConnectionId;
+    c->prevConnectionList = connectionList.last.load();
+    connectionList.last.store(c);
 
-    cleanConnectionLists();
+    QObjectPrivate *rd = QObjectPrivate::get(c->receiver.load());
+    rd->ensureConnectionData();
 
-    c->prev = &(QObjectPrivate::get(c->receiver)->senders);
+    c->prev = &(rd->connections.load()->senders);
     c->next = *c->prev;
     *c->prev = c;
     if (c->next)
         c->next->prev = &c->next;
+}
+
+void QObjectPrivate::ConnectionData::removeConnection(QObjectPrivate::Connection *c)
+{
+    Q_ASSERT(c->receiver.load());
+    ConnectionList &connections = signalVector.load()->at(c->signal_index);
+    c->receiver.store(nullptr);
+    QThreadData *td = c->receiverThreadData.load();
+    if (td)
+        td->deref();
+    c->receiverThreadData.store(nullptr);
 
-    if (signal < 0) {
-        connectedSignals[0] = connectedSignals[1] = ~0;
-    } else if (signal < (int)sizeof(connectedSignals) * 8) {
-        connectedSignals[signal >> 5] |= (1 << (signal & 0x1f));
+#ifndef QT_NO_DEBUG
+    bool found = false;
+    for (Connection *cc = connections.first.load(); cc; cc = cc->nextConnectionList.load()) {
+        if (cc == c) {
+            found = true;
+            break;
+        }
     }
+    Q_ASSERT(found);
+#endif
+
+    // remove from the senders linked list
+    *c->prev = c->next;
+    if (c->next)
+        c->next->prev = c->prev;
+    c->prev = nullptr;
+
+    if (connections.first.load() == c)
+        connections.first.store(c->nextConnectionList.load());
+    if (connections.last.load() == c)
+        connections.last.store(c->prevConnectionList);
+    Q_ASSERT(signalVector.load()->at(c->signal_index).first.load() != c);
+    Q_ASSERT(signalVector.load()->at(c->signal_index).last.load() != c);
+
+    // keep c->nextConnectionList intact, as it might still get accessed by activate
+    Connection *n = c->nextConnectionList.load();
+    if (n)
+        n->prevConnectionList = c->prevConnectionList;
+    if (c->prevConnectionList)
+        c->prevConnectionList->nextConnectionList.store(n);
+    c->prevConnectionList = nullptr;
+
+    Q_ASSERT(c != orphaned.load());
+    // add c to orphanedConnections
+    c->nextInOrphanList = orphaned.load();
+    orphaned.store(c);
+
+#ifndef QT_NO_DEBUG
+    found = false;
+    for (Connection *cc = connections.first.load(); cc; cc = cc->nextConnectionList.load()) {
+        if (cc == c) {
+            found = true;
+            break;
+        }
+    }
+    Q_ASSERT(!found);
+#endif
+
 }
 
-void QObjectPrivate::cleanConnectionLists()
+void QObjectPrivate::ConnectionData::cleanOrphanedConnectionsImpl(QObject *sender)
 {
-    if (connectionLists->dirty && !connectionLists->inUse) {
-        // remove broken connections
-        bool allConnected = false;
-        for (int signal = -1; signal < connectionLists->count(); ++signal) {
-            QObjectPrivate::ConnectionList &connectionList =
-                (*connectionLists)[signal];
-
-            // Set to the last entry in the connection list that was *not*
-            // deleted.  This is needed to update the list's last pointer
-            // at the end of the cleanup.
-            QObjectPrivate::Connection *last = 0;
-
-            QObjectPrivate::Connection **prev = &connectionList.first;
-            QObjectPrivate::Connection *c = *prev;
-            bool connected = false; // whether the signal is still connected somewhere
-            while (c) {
-                if (c->receiver) {
-                    last = c;
-                    prev = &c->nextConnectionList;
-                    c = *prev;
-                    connected = true;
-                } else {
-                    QObjectPrivate::Connection *next = c->nextConnectionList;
-                    *prev = next;
-                    c->deref();
-                    c = next;
-                }
-            }
+    ConnectionOrSignalVector *c = nullptr;
+    {
+        QBasicMutexLocker l(signalSlotLock(sender));
+        if (ref > 1)
+            return;
 
-            // Correct the connection list's last pointer.
-            // As conectionList.last could equal last, this could be a noop
-            connectionList.last = last;
+        // Since ref == 1, no activate() is in process since we locked the mutex. That implies,
+        // that nothing can reference the orphaned connection objects anymore and they can
+        // be safely deleted
+        c = orphaned.load();
+        orphaned.store(nullptr);
+    }
+    deleteOrphaned(c);
+}
 
-            if (!allConnected && !connected && signal >= 0
-                && size_t(signal) < sizeof(connectedSignals) * 8) {
-                // This signal is no longer connected
-                connectedSignals[signal >> 5] &= ~(1 << (signal & 0x1f));
-            } else if (signal == -1) {
-                allConnected = connected;
-            }
+void QObjectPrivate::ConnectionData::deleteOrphaned(QObjectPrivate::ConnectionOrSignalVector *o)
+{
+    while (o) {
+        QObjectPrivate::ConnectionOrSignalVector *next = nullptr;
+        if (SignalVector *v = ConnectionOrSignalVector::asSignalVector(o)) {
+            next = v->nextInOrphanList;
+            free(v);
+        } else {
+            QObjectPrivate::Connection *c = static_cast<Connection *>(o);
+            next = c->nextInOrphanList;
+            Q_ASSERT(!c->receiver.load());
+            Q_ASSERT(!c->prev);
+            c->freeSlotObject();
+            c->deref();
         }
-        connectionLists->dirty = false;
+        o = next;
+    }
+}
+
+/*! \internal
+
+  Returns \c true if the signal with index \a signal_index from object \a sender is connected.
+
+  \a signal_index must be the index returned by QObjectPrivate::signalIndex;
+*/
+bool QObjectPrivate::isSignalConnected(uint signalIndex, bool checkDeclarative) const
+{
+    if (checkDeclarative && isDeclarativeSignalConnected(signalIndex))
+        return true;
+
+    ConnectionData *cd = connections.load();
+    if (!cd)
+        return false;
+    SignalVector *signalVector = cd->signalVector.load();
+    if (!signalVector)
+        return false;
+
+    if (signalVector->at(-1).first.load())
+        return true;
+
+    if (signalIndex < uint(cd->signalVectorCount())) {
+        const QObjectPrivate::Connection *c = signalVector->at(signalIndex).first.load();
+        while (c) {
+            if (c->receiver.load())
+                return true;
+            c = c->nextConnectionList.load();
+        }
+    }
+    return false;
+}
+
+bool QObjectPrivate::maybeSignalConnected(uint signalIndex) const
+{
+    ConnectionData *cd = connections.load();
+    if (!cd)
+        return false;
+    SignalVector *signalVector = cd->signalVector.load();
+    if (!signalVector)
+        return false;
+
+    if (signalVector->at(-1).first)
+        return true;
+
+    if (signalIndex < uint(cd->signalVectorCount())) {
+        const QObjectPrivate::Connection *c = signalVector->at(signalIndex).first;
+        return c != nullptr;
     }
+    return false;
+}
+
+/*!
+    \internal
+ */
+QAbstractMetaCallEvent::~QAbstractMetaCallEvent()
+{
+#if QT_CONFIG(thread)
+    if (semaphore_)
+        semaphore_->release();
+#endif
 }
 
 /*!
@@ -470,8 +513,8 @@ void QObjectPrivate::cleanConnectionLists()
 QMetaCallEvent::QMetaCallEvent(ushort method_offset, ushort method_relative, QObjectPrivate::StaticMetaCallFunction callFunction,
                                const QObject *sender, int signalId,
                                int nargs, int *types, void **args, QSemaphore *semaphore)
-    : QEvent(MetaCall), slotObj_(0), sender_(sender), signalId_(signalId),
-      nargs_(nargs), types_(types), args_(args), semaphore_(semaphore),
+    : QAbstractMetaCallEvent(sender, signalId, semaphore),
+      slotObj_(nullptr), nargs_(nargs), types_(types), args_(args),
       callFunction_(callFunction), method_offset_(method_offset), method_relative_(method_relative)
 { }
 
@@ -480,9 +523,9 @@ QMetaCallEvent::QMetaCallEvent(ushort method_offset, ushort method_relative, QOb
  */
 QMetaCallEvent::QMetaCallEvent(QtPrivate::QSlotObjectBase *slotO, const QObject *sender, int signalId,
                                int nargs, int *types, void **args, QSemaphore *semaphore)
-    : QEvent(MetaCall), slotObj_(slotO), sender_(sender), signalId_(signalId),
-      nargs_(nargs), types_(types), args_(args), semaphore_(semaphore),
-      callFunction_(0), method_offset_(0), method_relative_(ushort(-1))
+    : QAbstractMetaCallEvent(sender, signalId, semaphore),
+      slotObj_(slotO), nargs_(nargs), types_(types), args_(args),
+      callFunction_(nullptr), method_offset_(0), method_relative_(ushort(-1))
 {
     if (slotObj_)
         slotObj_->ref();
@@ -501,10 +544,6 @@ QMetaCallEvent::~QMetaCallEvent()
         free(types_);
         free(args_);
     }
-#if QT_CONFIG(thread)
-    if (semaphore_)
-        semaphore_->release();
-#endif
     if (slotObj_)
         slotObj_->destroyIfLastRef();
 }
@@ -921,92 +960,56 @@ QObject::~QObject()
         }
     }
 
-    // set ref to zero to indicate that this object has been deleted
-    if (d->currentSender != 0)
-        d->currentSender->ref = 0;
-    d->currentSender = 0;
+    QObjectPrivate::ConnectionData *cd = d->connections.load();
+    if (cd) {
+        if (cd->currentSender) {
+            cd->currentSender->receiverDeleted();
+            cd->currentSender = nullptr;
+        }
 
-    if (d->connectionLists || d->senders) {
-        QMutex *signalSlotMutex = signalSlotLock(this);
-        QMutexLocker locker(signalSlotMutex);
+        QBasicMutex *signalSlotMutex = signalSlotLock(this);
+        QBasicMutexLocker locker(signalSlotMutex);
 
         // disconnect all receivers
-        if (d->connectionLists) {
-            ++d->connectionLists->inUse;
-            int connectionListsCount = d->connectionLists->count();
-            for (int signal = -1; signal < connectionListsCount; ++signal) {
-                QObjectPrivate::ConnectionList &connectionList =
-                    (*d->connectionLists)[signal];
-
-                while (QObjectPrivate::Connection *c = connectionList.first) {
-                    if (!c->receiver) {
-                        connectionList.first = c->nextConnectionList;
-                        c->deref();
-                        continue;
-                    }
+        int receiverCount = cd->signalVectorCount();
+        for (int signal = -1; signal < receiverCount; ++signal) {
+            QObjectPrivate::ConnectionList &connectionList = cd->connectionsForSignal(signal);
 
-                    QMutex *m = signalSlotLock(c->receiver);
-                    bool needToUnlock = QOrderedMutexLocker::relock(signalSlotMutex, m);
+            while (QObjectPrivate::Connection *c = connectionList.first.load()) {
+                Q_ASSERT(c->receiver);
 
-                    if (c->receiver) {
-                        *c->prev = c->next;
-                        if (c->next) c->next->prev = c->prev;
-                    }
-                    c->receiver = 0;
-                    if (needToUnlock)
-                        m->unlock();
-
-                    connectionList.first = c->nextConnectionList;
-
-                    // The destroy operation must happen outside the lock
-                    if (c->isSlotObject) {
-                        c->isSlotObject = false;
-                        locker.unlock();
-                        c->slotObj->destroyIfLastRef();
-                        locker.relock();
-                    }
-                    c->deref();
+                QBasicMutex *m = signalSlotLock(c->receiver.load());
+                bool needToUnlock = QOrderedMutexLocker::relock(signalSlotMutex, m);
+                if (c->receiver) {
+                    cd->removeConnection(c);
+                    Q_ASSERT(connectionList.first.load() != c);
                 }
+                if (needToUnlock)
+                    m->unlock();
             }
-
-            if (!--d->connectionLists->inUse) {
-                delete d->connectionLists;
-            } else {
-                d->connectionLists->orphaned = true;
-            }
-            d->connectionLists = 0;
         }
 
         /* Disconnect all senders:
-         * This loop basically just does
-         *     for (node = d->senders; node; node = node->next) { ... }
-         *
-         * We need to temporarily unlock the receiver mutex to destroy the functors or to lock the
-         * sender's mutex. And when the mutex is released, node->next might be destroyed by another
-         * thread. That's why we set node->prev to &node, that way, if node is destroyed, node will
-         * be updated.
          */
-        QObjectPrivate::Connection *node = d->senders;
-        while (node) {
+        while (QObjectPrivate::Connection *node = cd->senders) {
+            Q_ASSERT(node->receiver);
             QObject *sender = node->sender;
             // Send disconnectNotify before removing the connection from sender's connection list.
             // This ensures any eventual destructor of sender will block on getting receiver's lock
             // and not finish until we release it.
             sender->disconnectNotify(QMetaObjectPrivate::signal(sender->metaObject(), node->signal_index));
-            QMutex *m = signalSlotLock(sender);
-            node->prev = &node;
+            QBasicMutex *m = signalSlotLock(sender);
             bool needToUnlock = QOrderedMutexLocker::relock(signalSlotMutex, m);
             //the node has maybe been removed while the mutex was unlocked in relock?
-            if (!node || node->sender != sender) {
+            if (node != cd->senders) {
                 // We hold the wrong mutex
                 Q_ASSERT(needToUnlock);
                 m->unlock();
                 continue;
             }
-            node->receiver = 0;
-            QObjectConnectionListVector *senderLists = sender->d_func()->connectionLists;
-            if (senderLists)
-                senderLists->dirty = true;
+
+            QObjectPrivate::ConnectionData *senderData = sender->d_func()->connections.load();
+            Q_ASSERT(senderData);
 
             QtPrivate::QSlotObjectBase *slotObj = nullptr;
             if (node->isSlotObject) {
@@ -1014,19 +1017,24 @@ QObject::~QObject()
                 node->isSlotObject = false;
             }
 
-            node = node->next;
+            senderData->removeConnection(node);
             if (needToUnlock)
                 m->unlock();
 
             if (slotObj) {
-                if (node)
-                    node->prev = &node;
                 locker.unlock();
                 slotObj->destroyIfLastRef();
                 locker.relock();
             }
         }
+
+        // invalidate all connections on the object and make sure
+        // activate() will skip them
+        cd->currentConnectionId.store(0);
     }
+    if (cd && !cd->ref.deref())
+        delete cd;
+    d->connections.store(nullptr);
 
     if (!d->children.isEmpty())
         d->deleteChildren();
@@ -1253,9 +1261,13 @@ bool QObject::event(QEvent *e)
 
     case QEvent::MetaCall:
         {
-            QMetaCallEvent *mce = static_cast<QMetaCallEvent*>(e);
+            QAbstractMetaCallEvent *mce = static_cast<QAbstractMetaCallEvent*>(e);
 
-            QConnectionSenderSwitcher sw(this, const_cast<QObject*>(mce->sender()), mce->signalId());
+            if (!d_func()->connections.load()) {
+                QBasicMutexLocker locker(signalSlotLock(this));
+                d_func()->ensureConnectionData();
+            }
+            QObjectPrivate::Sender sender(this, const_cast<QObject*>(mce->sender()), mce->signalId());
 
             mce->placeMetaCall(this);
             break;
@@ -1415,7 +1427,7 @@ bool QObject::eventFilter(QObject * /* watched */, QEvent * /* event */)
     \sa signalsBlocked(), QSignalBlocker
 */
 
-bool QObject::blockSignals(bool block) Q_DECL_NOTHROW
+bool QObject::blockSignals(bool block) noexcept
 {
     Q_D(QObject);
     bool previous = d->blockSig;
@@ -1516,6 +1528,9 @@ void QObject::moveToThread(QThread *targetThread)
     if (!targetData)
         targetData = new QThreadData(0);
 
+    // make sure nobody adds/removes connections to this object while we're moving it
+    QMutexLocker l(signalSlotLock(this));
+
     QOrderedMutexLocker locker(&currentData->postEventList.mutex,
                                &targetData->postEventList.mutex);
 
@@ -1565,9 +1580,31 @@ void QObjectPrivate::setThreadData_helper(QThreadData *currentData, QThreadData
     }
 
     // the current emitting thread shouldn't restore currentSender after calling moveToThread()
-    if (currentSender)
-        currentSender->ref = 0;
-    currentSender = 0;
+    ConnectionData *cd = connections.load();
+    if (cd) {
+        if (cd->currentSender) {
+            cd->currentSender->receiverDeleted();
+            cd->currentSender = nullptr;
+        }
+
+        // adjust the receiverThreadId values in the Connections
+        if (cd) {
+            auto *c = cd->senders;
+            while (c) {
+                QObject *r = c->receiver.load();
+                if (r) {
+                    Q_ASSERT(r == q);
+                    targetData->ref();
+                    QThreadData *old = c->receiverThreadData.load();
+                    if (old)
+                        old->deref();
+                    c->receiverThreadData.store(targetData);
+                }
+                c = c->next;
+            }
+        }
+
+    }
 
     // set new thread data
     targetData->ref();
@@ -2376,13 +2413,14 @@ QObject *QObject::sender() const
 {
     Q_D(const QObject);
 
-    QMutexLocker locker(signalSlotLock(this));
-    if (!d->currentSender)
-        return 0;
+    QBasicMutexLocker locker(signalSlotLock(this));
+    QObjectPrivate::ConnectionData *cd = d->connections.load();
+    if (!cd || !cd->currentSender)
+        return nullptr;
 
-    for (QObjectPrivate::Connection *c = d->senders; c; c = c->next) {
-        if (c->sender == d->currentSender->sender)
-            return d->currentSender->sender;
+    for (QObjectPrivate::Connection *c = cd->senders; c; c = c->next) {
+        if (c->sender == cd->currentSender->sender)
+            return cd->currentSender->sender;
     }
 
     return 0;
@@ -2417,14 +2455,15 @@ int QObject::senderSignalIndex() const
 {
     Q_D(const QObject);
 
-    QMutexLocker locker(signalSlotLock(this));
-    if (!d->currentSender)
+    QBasicMutexLocker locker(signalSlotLock(this));
+    QObjectPrivate::ConnectionData *cd = d->connections.load();
+    if (!cd || !cd->currentSender)
         return -1;
 
-    for (QObjectPrivate::Connection *c = d->senders; c; c = c->next) {
-        if (c->sender == d->currentSender->sender) {
+    for (QObjectPrivate::Connection *c = cd->senders; c; c = c->next) {
+        if (c->sender == cd->currentSender->sender) {
             // Convert from signal range to method range
-            return QMetaObjectPrivate::signal(c->sender->metaObject(), d->currentSender->signal).methodIndex();
+            return QMetaObjectPrivate::signal(c->sender->metaObject(), cd->currentSender->signal).methodIndex();
         }
     }
 
@@ -2480,15 +2519,13 @@ int QObject::receivers(const char *signal) const
                                                              signal_index);
         }
 
-        QMutexLocker locker(signalSlotLock(this));
-        if (d->connectionLists) {
-            if (signal_index < d->connectionLists->count()) {
-                const QObjectPrivate::Connection *c =
-                    d->connectionLists->at(signal_index).first;
-                while (c) {
-                    receivers += c->receiver ? 1 : 0;
-                    c = c->nextConnectionList;
-                }
+        QObjectPrivate::ConnectionData *cd = d->connections.load();
+        QBasicMutexLocker locker(signalSlotLock(this));
+        if (cd && signal_index < cd->signalVectorCount()) {
+            const QObjectPrivate::Connection *c = cd->signalVector.load()->at(signal_index).first.load();
+            while (c) {
+                receivers += c->receiver.load() ? 1 : 0;
+                c = c->nextConnectionList.load();
             }
         }
     }
@@ -2528,22 +2565,8 @@ bool QObject::isSignalConnected(const QMetaMethod &signal) const
 
     signalIndex += QMetaObjectPrivate::signalOffset(signal.mobj);
 
-    QMutexLocker locker(signalSlotLock(this));
-    if (d->connectionLists) {
-        if (signalIndex < sizeof(d->connectedSignals) * 8 && !d->connectionLists->dirty)
-            return d->isSignalConnected(signalIndex);
-
-        if (signalIndex < uint(d->connectionLists->count())) {
-            const QObjectPrivate::Connection *c =
-                d->connectionLists->at(signalIndex).first;
-            while (c) {
-                if (c->receiver)
-                    return true;
-                c = c->nextConnectionList;
-            }
-        }
-    }
-    return d->isDeclarativeSignalConnected(signalIndex);
+    QBasicMutexLocker locker(signalSlotLock(this));
+    return d->isSignalConnected(signalIndex, true);
 }
 
 /*!
@@ -3306,24 +3329,22 @@ QObjectPrivate::Connection *QMetaObjectPrivate::connect(const QObject *sender,
 
     int method_offset = rmeta ? rmeta->methodOffset() : 0;
     Q_ASSERT(!rmeta || QMetaObjectPrivate::get(rmeta)->revision >= 6);
-    QObjectPrivate::StaticMetaCallFunction callFunction =
-        rmeta ? rmeta->d.static_metacall : 0;
+    QObjectPrivate::StaticMetaCallFunction callFunction = rmeta ? rmeta->d.static_metacall : nullptr;
 
     QOrderedMutexLocker locker(signalSlotLock(sender),
                                signalSlotLock(receiver));
 
-    if (type & Qt::UniqueConnection) {
-        QObjectConnectionListVector *connectionLists = QObjectPrivate::get(s)->connectionLists;
-        if (connectionLists && connectionLists->count() > signal_index) {
-            const QObjectPrivate::Connection *c2 =
-                (*connectionLists)[signal_index].first;
+    QObjectPrivate::ConnectionData *scd  = QObjectPrivate::get(s)->connections.load();
+    if (type & Qt::UniqueConnection && scd) {
+        if (scd->signalVectorCount() > signal_index) {
+            const QObjectPrivate::Connection *c2 = scd->signalVector.load()->at(signal_index).first.load();
 
             int method_index_absolute = method_index + method_offset;
 
             while (c2) {
-                if (!c2->isSlotObject && c2->receiver == receiver && c2->method() == method_index_absolute)
-                    return 0;
-                c2 = c2->nextConnectionList;
+                if (!c2->isSlotObject && c2->receiver.load() == receiver && c2->method() == method_index_absolute)
+                    return nullptr;
+                c2 = c2->nextConnectionList.load();
             }
         }
         type &= Qt::UniqueConnection - 1;
@@ -3332,13 +3353,15 @@ QObjectPrivate::Connection *QMetaObjectPrivate::connect(const QObject *sender,
     QScopedPointer<QObjectPrivate::Connection> c(new QObjectPrivate::Connection);
     c->sender = s;
     c->signal_index = signal_index;
-    c->receiver = r;
+    c->receiver.store(r);
+    QThreadData *td = r->d_func()->threadData;
+    td->ref();
+    c->receiverThreadData.store(td);
     c->method_relative = method_index;
     c->method_offset = method_offset;
     c->connectionType = type;
     c->isSlotObject = false;
     c->argumentTypes.store(types);
-    c->nextConnectionList = 0;
     c->callFunction = callFunction;
 
     QObjectPrivate::get(s)->addConnection(signal_index, c.data());
@@ -3384,47 +3407,38 @@ bool QMetaObject::disconnectOne(const QObject *sender, int signal_index,
     \internal
     Helper function to remove the connection from the senders list and set the receivers to \nullptr
  */
-bool QMetaObjectPrivate::disconnectHelper(QObjectPrivate::Connection *c,
+bool QMetaObjectPrivate::disconnectHelper(QObjectPrivate::ConnectionData *connections, int signalIndex,
                                           const QObject *receiver, int method_index, void **slot,
-                                          QMutex *senderMutex, DisconnectType disconnectType)
+                                          QBasicMutex *senderMutex, DisconnectType disconnectType)
 {
     bool success = false;
+
+    auto &connectionList = connections->connectionsForSignal(signalIndex);
+    auto *c = connectionList.first.load();
     while (c) {
-        if (c->receiver
-            && (receiver == 0 || (c->receiver == receiver
+        QObject *r = c->receiver.load();
+        if (r && (receiver == nullptr || (r == receiver
                            && (method_index < 0 || (!c->isSlotObject && c->method() == method_index))
-                           && (slot == 0 || (c->isSlotObject && c->slotObj->compare(slot)))))) {
+                           && (slot == nullptr || (c->isSlotObject && c->slotObj->compare(slot)))))) {
             bool needToUnlock = false;
-            QMutex *receiverMutex = 0;
-            if (c->receiver) {
-                receiverMutex = signalSlotLock(c->receiver);
+            QBasicMutex *receiverMutex = nullptr;
+            if (r) {
+                receiverMutex = signalSlotLock(r);
                 // need to relock this receiver and sender in the correct order
                 needToUnlock = QOrderedMutexLocker::relock(senderMutex, receiverMutex);
             }
-            if (c->receiver) {
-                *c->prev = c->next;
-                if (c->next)
-                    c->next->prev = c->prev;
-            }
+            if (c->receiver.load())
+                connections->removeConnection(c);
 
             if (needToUnlock)
                 receiverMutex->unlock();
 
-            c->receiver = 0;
-
-            if (c->isSlotObject) {
-                c->isSlotObject = false;
-                senderMutex->unlock();
-                c->slotObj->destroyIfLastRef();
-                senderMutex->lock();
-            }
-
             success = true;
 
             if (disconnectType == DisconnectOne)
                 return success;
         }
-        c = c->nextConnectionList;
+        c = c->nextConnectionList.load();
     }
     return success;
 }
@@ -3443,43 +3457,34 @@ bool QMetaObjectPrivate::disconnect(const QObject *sender,
 
     QObject *s = const_cast<QObject *>(sender);
 
-    QMutex *senderMutex = signalSlotLock(sender);
-    QMutexLocker locker(senderMutex);
+    QBasicMutex *senderMutex = signalSlotLock(sender);
+    QBasicMutexLocker locker(senderMutex);
 
-    QObjectConnectionListVector *connectionLists = QObjectPrivate::get(s)->connectionLists;
-    if (!connectionLists)
+    QObjectPrivate::ConnectionData *scd  = QObjectPrivate::get(s)->connections.load();
+    if (!scd)
         return false;
 
-    // prevent incoming connections changing the connectionLists while unlocked
-    ++connectionLists->inUse;
-
     bool success = false;
-    if (signal_index < 0) {
-        // remove from all connection lists
-        for (int sig_index = -1; sig_index < connectionLists->count(); ++sig_index) {
-            QObjectPrivate::Connection *c =
-                (*connectionLists)[sig_index].first;
-            if (disconnectHelper(c, receiver, method_index, slot, senderMutex, disconnectType)) {
-                success = true;
-                connectionLists->dirty = true;
+    {
+        // prevent incoming connections changing the connections->receivers while unlocked
+        QObjectPrivate::ConnectionDataPointer connections(scd);
+
+        if (signal_index < 0) {
+            // remove from all connection lists
+            for (int sig_index = -1; sig_index < scd->signalVectorCount(); ++sig_index) {
+                if (disconnectHelper(connections.data(), sig_index, receiver, method_index, slot, senderMutex, disconnectType))
+                    success = true;
             }
-        }
-    } else if (signal_index < connectionLists->count()) {
-        QObjectPrivate::Connection *c =
-            (*connectionLists)[signal_index].first;
-        if (disconnectHelper(c, receiver, method_index, slot, senderMutex, disconnectType)) {
-            success = true;
-            connectionLists->dirty = true;
+        } else if (signal_index < scd->signalVectorCount()) {
+            if (disconnectHelper(connections.data(), signal_index, receiver, method_index, slot, senderMutex, disconnectType))
+                success = true;
         }
     }
 
-    --connectionLists->inUse;
-    Q_ASSERT(connectionLists->inUse >= 0);
-    if (connectionLists->orphaned && !connectionLists->inUse)
-        delete connectionLists;
-
     locker.unlock();
     if (success) {
+        scd->cleanOrphanedConnections(s);
+
         QMetaMethod smethod = QMetaObjectPrivate::signal(smeta, signal_index);
         if (smethod.isValid())
             s->disconnectNotify(smethod);
@@ -3595,8 +3600,7 @@ void QMetaObject::connectSlotsByName(QObject *o)
 
     \a signal must be in the signal index range (see QObjectPrivate::signalIndex()).
 */
-static void queued_activate(QObject *sender, int signal, QObjectPrivate::Connection *c, void **argv,
-                            QMutexLocker &locker)
+static void queued_activate(QObject *sender, int signal, QObjectPrivate::Connection *c, void **argv)
 {
     const int *argumentTypes = c->argumentTypes.load();
     if (!argumentTypes) {
@@ -3626,131 +3630,109 @@ static void queued_activate(QObject *sender, int signal, QObjectPrivate::Connect
         for (int n = 1; n < nargs; ++n)
             types[n] = argumentTypes[n-1];
 
-        locker.unlock();
         for (int n = 1; n < nargs; ++n)
             args[n] = QMetaType::create(types[n], argv[n]);
-        locker.relock();
-
-        if (!c->receiver) {
-            locker.unlock();
-            // we have been disconnected while the mutex was unlocked
-            for (int n = 1; n < nargs; ++n)
-                QMetaType::destroy(types[n], args[n]);
-            free(types);
-            free(args);
-            locker.relock();
-            return;
-        }
+    }
+
+    QBasicMutexLocker locker(signalSlotLock(c->receiver.load()));
+    if (!c->receiver.load()) {
+        // the connection has been disconnected before we got the lock
+        locker.unlock();
+        for (int n = 1; n < nargs; ++n)
+            QMetaType::destroy(types[n], args[n]);
+        free(types);
+        free(args);
+        return;
     }
 
     QMetaCallEvent *ev = c->isSlotObject ?
         new QMetaCallEvent(c->slotObj, sender, signal, nargs, types, args) :
         new QMetaCallEvent(c->method_offset, c->method_relative, c->callFunction, sender, signal, nargs, types, args);
-    QCoreApplication::postEvent(c->receiver, ev);
+    QCoreApplication::postEvent(c->receiver.load(), ev);
 }
 
-/*!
-    \internal
- */
-void QMetaObject::activate(QObject *sender, const QMetaObject *m, int local_signal_index,
-                           void **argv)
-{
-    activate(sender, QMetaObjectPrivate::signalOffset(m), local_signal_index, argv);
-}
-
-/*!
-    \internal
- */
-void QMetaObject::activate(QObject *sender, int signalOffset, int local_signal_index, void **argv)
+template <bool callbacks_enabled>
+void doActivate(QObject *sender, int signal_index, void **argv)
 {
-    int signal_index = signalOffset + local_signal_index;
+    QObjectPrivate *sp = QObjectPrivate::get(sender);
 
-    if (sender->d_func()->blockSig)
+    if (sp->blockSig)
         return;
 
     Q_TRACE_SCOPE(QMetaObject_activate, sender, signal_index);
 
-    if (sender->d_func()->isDeclarativeSignalConnected(signal_index)
+    if (sp->isDeclarativeSignalConnected(signal_index)
             && QAbstractDeclarativeData::signalEmitted) {
         Q_TRACE_SCOPE(QMetaObject_activate_declarative_signal, sender, signal_index);
-        QAbstractDeclarativeData::signalEmitted(sender->d_func()->declarativeData, sender,
+        QAbstractDeclarativeData::signalEmitted(sp->declarativeData, sender,
                                                 signal_index, argv);
     }
 
-    if (!sender->d_func()->isSignalConnected(signal_index, /*checkDeclarative =*/ false)
-        && !qt_signal_spy_callback_set.signal_begin_callback
-        && !qt_signal_spy_callback_set.signal_end_callback) {
-        // The possible declarative connection is done, and nothing else is connected, so:
-        return;
-    }
+    const QSignalSpyCallbackSet *signal_spy_set = callbacks_enabled ? qt_signal_spy_callback_set.load() : nullptr;
 
     void *empty_argv[] = { nullptr };
     if (!argv)
         argv = empty_argv;
 
-    if (qt_signal_spy_callback_set.signal_begin_callback != 0) {
-        qt_signal_spy_callback_set.signal_begin_callback(sender, signal_index, argv);
+    if (!sp->maybeSignalConnected(signal_index)) {
+        // The possible declarative connection is done, and nothing else is connected
+        if (callbacks_enabled && signal_spy_set->signal_begin_callback != nullptr)
+            signal_spy_set->signal_begin_callback(sender, signal_index, argv);
+        if (callbacks_enabled && signal_spy_set->signal_end_callback != nullptr)
+            signal_spy_set->signal_end_callback(sender, signal_index);
+        return;
     }
 
-    {
-    QMutexLocker locker(signalSlotLock(sender));
-    struct ConnectionListsRef {
-        QObjectConnectionListVector *connectionLists;
-        ConnectionListsRef(QObjectConnectionListVector *connectionLists) : connectionLists(connectionLists)
-        {
-            if (connectionLists)
-                ++connectionLists->inUse;
-        }
-        ~ConnectionListsRef()
-        {
-            if (!connectionLists)
-                return;
-
-            --connectionLists->inUse;
-            Q_ASSERT(connectionLists->inUse >= 0);
-            if (connectionLists->orphaned) {
-                if (!connectionLists->inUse)
-                    delete connectionLists;
-            }
-        }
+    if (callbacks_enabled && signal_spy_set->signal_begin_callback != nullptr)
+        signal_spy_set->signal_begin_callback(sender, signal_index, argv);
 
-        QObjectConnectionListVector *operator->() const { return connectionLists; }
-    };
-    ConnectionListsRef connectionLists = sender->d_func()->connectionLists;
-    if (!connectionLists.connectionLists) {
-        locker.unlock();
-        if (qt_signal_spy_callback_set.signal_end_callback != 0)
-            qt_signal_spy_callback_set.signal_end_callback(sender, signal_index);
-        return;
-    }
+    bool senderDeleted = false;
+    {
+    Q_ASSERT(sp->connections);
+    QObjectPrivate::ConnectionDataPointer connections(sp->connections.load());
+    QObjectPrivate::SignalVector *signalVector = connections->signalVector.load();
 
     const QObjectPrivate::ConnectionList *list;
-    if (signal_index < connectionLists->count())
-        list = &connectionLists->at(signal_index);
+    if (signal_index < signalVector->count())
+        list = &signalVector->at(signal_index);
     else
-        list = &connectionLists->allsignals;
+        list = &signalVector->at(-1);
 
     Qt::HANDLE currentThreadId = QThread::currentThreadId();
+    bool inSenderThread = currentThreadId == QObjectPrivate::get(sender)->threadData->threadId.load();
 
+    // We need to check against the highest connection id to ensure that signals added
+    // during the signal emission are not emitted in this emission.
+    uint highestConnectionId = connections->currentConnectionId.load();
     do {
-        QObjectPrivate::Connection *c = list->first;
-        if (!c) continue;
-        // We need to check against last here to ensure that signals added
-        // during the signal emission are not emitted in this emission.
-        QObjectPrivate::Connection *last = list->last;
+        QObjectPrivate::Connection *c = list->first.load();
+        if (!c)
+            continue;
 
         do {
-            if (!c->receiver)
+            QObject * const receiver = c->receiver.load();
+            if (!receiver)
                 continue;
 
-            QObject * const receiver = c->receiver;
-            const bool receiverInSameThread = currentThreadId == receiver->d_func()->threadData->threadId.load();
+            QThreadData *td = c->receiverThreadData.load();
+            if (!td)
+                continue;
+
+            bool receiverInSameThread;
+            if (inSenderThread) {
+                receiverInSameThread = currentThreadId == td->threadId.load();
+            } else {
+                // need to lock before reading the threadId, because moveToThread() could interfere
+                QMutexLocker lock(signalSlotLock(receiver));
+                receiverInSameThread = currentThreadId == td->threadId.load();
+            }
+
 
             // determine if this connection should be sent immediately or
             // put into the event queue
             if ((c->connectionType == Qt::AutoConnection && !receiverInSameThread)
                 || (c->connectionType == Qt::QueuedConnection)) {
-                queued_activate(sender, signal_index, c, argv, locker);
+                queued_activate(sender, signal_index, c, argv);
                 continue;
 #if QT_CONFIG(thread)
             } else if (c->connectionType == Qt::BlockingQueuedConnection) {
@@ -3761,92 +3743,105 @@ void QMetaObject::activate(QObject *sender, int signalOffset, int local_signal_i
                     receiver->metaObject()->className(), receiver);
                 }
                 QSemaphore semaphore;
-                QMetaCallEvent *ev = c->isSlotObject ?
-                    new QMetaCallEvent(c->slotObj, sender, signal_index, 0, 0, argv, &semaphore) :
-                    new QMetaCallEvent(c->method_offset, c->method_relative, c->callFunction, sender, signal_index, 0, 0, argv, &semaphore);
-                QCoreApplication::postEvent(receiver, ev);
-                locker.unlock();
+                {
+                    QBasicMutexLocker locker(signalSlotLock(sender));
+                    if (!c->receiver)
+                        continue;
+                    QMetaCallEvent *ev = c->isSlotObject ?
+                        new QMetaCallEvent(c->slotObj, sender, signal_index, 0, 0, argv, &semaphore) :
+                        new QMetaCallEvent(c->method_offset, c->method_relative, c->callFunction, sender, signal_index, 0, 0, argv, &semaphore);
+                    QCoreApplication::postEvent(receiver, ev);
+                }
                 semaphore.acquire();
-                locker.relock();
                 continue;
 #endif
             }
 
-            QConnectionSenderSwitcher sw;
+            QObjectPrivate::Sender senderData(receiverInSameThread ? receiver : nullptr, sender, signal_index);
 
-            if (receiverInSameThread) {
-                sw.switchSender(receiver, sender, signal_index);
-            }
             if (c->isSlotObject) {
                 c->slotObj->ref();
                 QScopedPointer<QtPrivate::QSlotObjectBase, QSlotObjectBaseDeleter> obj(c->slotObj);
-                locker.unlock();
 
                 {
                     Q_TRACE_SCOPE(QMetaObject_activate_slot_functor, obj.data());
                     obj->call(receiver, argv);
                 }
-
-                // Make sure the slot object gets destroyed before the mutex is locked again, as the
-                // destructor of the slot object might also lock a mutex from the signalSlotLock() mutex pool,
-                // and that would deadlock if the pool happens to return the same mutex.
-                obj.reset();
-
-                locker.relock();
             } else if (c->callFunction && c->method_offset <= receiver->metaObject()->methodOffset()) {
                 //we compare the vtable to make sure we are not in the destructor of the object.
-                const int methodIndex = c->method();
                 const int method_relative = c->method_relative;
                 const auto callFunction = c->callFunction;
-                locker.unlock();
-                if (qt_signal_spy_callback_set.slot_begin_callback != 0)
-                    qt_signal_spy_callback_set.slot_begin_callback(receiver, methodIndex, argv);
+                const int methodIndex = (Q_HAS_TRACEPOINTS || callbacks_enabled) ? c->method() : 0;
+                if (callbacks_enabled && signal_spy_set->slot_begin_callback != nullptr)
+                    signal_spy_set->slot_begin_callback(receiver, methodIndex, argv);
 
                 {
                     Q_TRACE_SCOPE(QMetaObject_activate_slot, receiver, methodIndex);
                     callFunction(receiver, QMetaObject::InvokeMetaMethod, method_relative, argv);
                 }
 
-                if (qt_signal_spy_callback_set.slot_end_callback != 0)
-                    qt_signal_spy_callback_set.slot_end_callback(receiver, methodIndex);
-                locker.relock();
+                if (callbacks_enabled && signal_spy_set->slot_end_callback != nullptr)
+                    signal_spy_set->slot_end_callback(receiver, methodIndex);
             } else {
                 const int method = c->method_relative + c->method_offset;
-                locker.unlock();
 
-                if (qt_signal_spy_callback_set.slot_begin_callback != 0) {
-                    qt_signal_spy_callback_set.slot_begin_callback(receiver, method, argv);
+                if (callbacks_enabled && signal_spy_set->slot_begin_callback != nullptr) {
+                    signal_spy_set->slot_begin_callback(receiver, method, argv);
                 }
 
                 {
                     Q_TRACE_SCOPE(QMetaObject_activate_slot, receiver, method);
-                    metacall(receiver, QMetaObject::InvokeMetaMethod, method, argv);
+                    QMetaObject::metacall(receiver, QMetaObject::InvokeMetaMethod, method, argv);
                 }
 
-                if (qt_signal_spy_callback_set.slot_end_callback != 0)
-                    qt_signal_spy_callback_set.slot_end_callback(receiver, method);
-
-                locker.relock();
+                if (callbacks_enabled && signal_spy_set->slot_end_callback != nullptr)
+                    signal_spy_set->slot_end_callback(receiver, method);
             }
+        } while ((c = c->nextConnectionList.load()) != nullptr && c->id <= highestConnectionId);
 
-            if (connectionLists->orphaned)
-                break;
-        } while (c != last && (c = c->nextConnectionList) != 0);
-
-        if (connectionLists->orphaned)
-            break;
-    } while (list != &connectionLists->allsignals &&
+    } while (list != &signalVector->at(-1) &&
         //start over for all signals;
-        ((list = &connectionLists->allsignals), true));
+        ((list = &signalVector->at(-1)), true));
 
+        if (connections->currentConnectionId.load() == 0)
+            senderDeleted = true;
     }
+    if (!senderDeleted)
+        sp->connections.load()->cleanOrphanedConnections(sender);
+
+    if (callbacks_enabled && signal_spy_set->signal_end_callback != nullptr)
+        signal_spy_set->signal_end_callback(sender, signal_index);
+}
+
+/*!
+    \internal
+ */
+void QMetaObject::activate(QObject *sender, const QMetaObject *m, int local_signal_index,
+                           void **argv)
+{
+    int signal_index = local_signal_index + QMetaObjectPrivate::signalOffset(m);
 
-    if (qt_signal_spy_callback_set.signal_end_callback != 0)
-        qt_signal_spy_callback_set.signal_end_callback(sender, signal_index);
+    if (Q_UNLIKELY(qt_signal_spy_callback_set.load()))
+        doActivate<true>(sender, signal_index, argv);
+    else
+        doActivate<false>(sender, signal_index, argv);
 }
 
 /*!
     \internal
+ */
+void QMetaObject::activate(QObject *sender, int signalOffset, int local_signal_index, void **argv)
+{
+    int signal_index = signalOffset + local_signal_index;
+
+    if (Q_UNLIKELY(qt_signal_spy_callback_set.load()))
+        doActivate<true>(sender, signal_index, argv);
+    else
+        doActivate<false>(sender, signal_index, argv);
+ }
+
+/*!
+    \internal
    signal_index comes from indexOfMethod()
 */
 void QMetaObject::activate(QObject *sender, int signal_index, void **argv)
@@ -3859,7 +3854,7 @@ void QMetaObject::activate(QObject *sender, int signal_index, void **argv)
 
 /*!
     \internal
-    Returns the signal index used in the internal connectionLists vector.
+    Returns the signal index used in the internal connections->receivers vector.
 
     It is different from QMetaObject::indexOfSignal():  indexOfSignal is the same as indexOfMethod
     while QObjectPrivate::signalIndex is smaller because it doesn't give index to slots.
@@ -4042,6 +4037,7 @@ static void dumpRecursive(int level, const QObject *object)
     }
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
     \overload
     \obsolete
@@ -4055,6 +4051,7 @@ void QObject::dumpObjectTree()
 {
     const_cast<const QObject *>(this)->dumpObjectTree();
 }
+#endif
 
 /*!
     Dumps a tree of children to the debug output.
@@ -4069,6 +4066,7 @@ void QObject::dumpObjectTree() const
     dumpRecursive(0, this);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
     \overload
     \obsolete
@@ -4083,6 +4081,7 @@ void QObject::dumpObjectInfo()
 {
     const_cast<const QObject *>(this)->dumpObjectInfo();
 }
+#endif
 
 /*!
     Dumps information about signal connections, etc. for this object
@@ -4099,37 +4098,40 @@ void QObject::dumpObjectInfo() const
            objectName().isEmpty() ? "unnamed" : objectName().toLocal8Bit().data());
 
     Q_D(const QObject);
-    QMutexLocker locker(signalSlotLock(this));
+    QBasicMutexLocker locker(signalSlotLock(this));
 
     // first, look for connections where this object is the sender
     qDebug("  SIGNALS OUT");
 
-    if (d->connectionLists) {
-        for (int signal_index = 0; signal_index < d->connectionLists->count(); ++signal_index) {
+    QObjectPrivate::ConnectionData *cd = d->connections.load();
+    if (cd && cd->signalVectorCount()) {
+        QObjectPrivate::SignalVector *signalVector = cd->signalVector.load();
+        for (int signal_index = 0; signal_index < signalVector->count(); ++signal_index) {
+            const QObjectPrivate::Connection *c = signalVector->at(signal_index).first.load();
+            if (!c)
+                continue;
             const QMetaMethod signal = QMetaObjectPrivate::signal(metaObject(), signal_index);
             qDebug("        signal: %s", signal.methodSignature().constData());
 
             // receivers
-            const QObjectPrivate::Connection *c =
-                d->connectionLists->at(signal_index).first;
             while (c) {
-                if (!c->receiver) {
+                if (!c->receiver.load()) {
                     qDebug("          <Disconnected receiver>");
-                    c = c->nextConnectionList;
+                    c = c->nextConnectionList.load();
                     continue;
                 }
                 if (c->isSlotObject) {
                     qDebug("          <functor or function pointer>");
-                    c = c->nextConnectionList;
+                    c = c->nextConnectionList.load();
                     continue;
                 }
-                const QMetaObject *receiverMetaObject = c->receiver->metaObject();
+                const QMetaObject *receiverMetaObject = c->receiver.load()->metaObject();
                 const QMetaMethod method = receiverMetaObject->method(c->method());
                 qDebug("          --> %s::%s %s",
                        receiverMetaObject->className(),
-                       c->receiver->objectName().isEmpty() ? "unnamed" : qPrintable(c->receiver->objectName()),
+                       c->receiver.load()->objectName().isEmpty() ? "unnamed" : qPrintable(c->receiver.load()->objectName()),
                        method.methodSignature().constData());
-                c = c->nextConnectionList;
+                c = c->nextConnectionList.load();
             }
         }
     } else {
@@ -4139,8 +4141,8 @@ void QObject::dumpObjectInfo() const
     // now look for connections where this object is the receiver
     qDebug("  SIGNALS IN");
 
-    if (d->senders) {
-        for (QObjectPrivate::Connection *s = d->senders; s; s = s->next) {
+    if (cd && cd->senders) {
+        for (QObjectPrivate::Connection *s = cd->senders; s; s = s->next) {
             QByteArray slotName = QByteArrayLiteral("<unknown>");
             if (!s->isSlotObject) {
                 const QMetaMethod slot = metaObject()->method(s->method());
@@ -4875,18 +4877,17 @@ QMetaObject::Connection QObjectPrivate::connectImpl(const QObject *sender, int s
     QOrderedMutexLocker locker(signalSlotLock(sender),
                                signalSlotLock(receiver));
 
-    if (type & Qt::UniqueConnection && slot) {
-        QObjectConnectionListVector *connectionLists = QObjectPrivate::get(s)->connectionLists;
-        if (connectionLists && connectionLists->count() > signal_index) {
-            const QObjectPrivate::Connection *c2 =
-                (*connectionLists)[signal_index].first;
+    if (type & Qt::UniqueConnection && slot && QObjectPrivate::get(s)->connections.load()) {
+        QObjectPrivate::ConnectionData *connections = QObjectPrivate::get(s)->connections.load();
+        if (connections->signalVectorCount() > signal_index) {
+            const QObjectPrivate::Connection *c2 = connections->signalVector.load()->at(signal_index).first.load();
 
             while (c2) {
-                if (c2->receiver == receiver && c2->isSlotObject && c2->slotObj->compare(slot)) {
+                if (c2->receiver.load() == receiver && c2->isSlotObject && c2->slotObj->compare(slot)) {
                     slotObj->destroyIfLastRef();
                     return QMetaObject::Connection();
                 }
-                c2 = c2->nextConnectionList;
+                c2 = c2->nextConnectionList.load();
             }
         }
         type = static_cast<Qt::ConnectionType>(type ^ Qt::UniqueConnection);
@@ -4895,7 +4896,10 @@ QMetaObject::Connection QObjectPrivate::connectImpl(const QObject *sender, int s
     QScopedPointer<QObjectPrivate::Connection> c(new QObjectPrivate::Connection);
     c->sender = s;
     c->signal_index = signal_index;
-    c->receiver = r;
+    QThreadData *td = r->d_func()->threadData;
+    td->ref();
+    c->receiverThreadData.store(td);
+    c->receiver.store(r);
     c->slotObj = slotObj;
     c->connectionType = type;
     c->isSlotObject = true;
@@ -4927,35 +4931,35 @@ bool QObject::disconnect(const QMetaObject::Connection &connection)
 {
     QObjectPrivate::Connection *c = static_cast<QObjectPrivate::Connection *>(connection.d_ptr);
 
-    if (!c || !c->receiver)
+    if (!c)
+        return false;
+    QObject *receiver = c->receiver.load();
+    if (!receiver)
         return false;
 
-    QMutex *senderMutex = signalSlotLock(c->sender);
-    QMutex *receiverMutex = signalSlotLock(c->receiver);
+    QBasicMutex *senderMutex = signalSlotLock(c->sender);
+    QBasicMutex *receiverMutex = signalSlotLock(receiver);
 
+    QObjectPrivate::ConnectionData *connections;
     {
         QOrderedMutexLocker locker(senderMutex, receiverMutex);
 
-        QObjectConnectionListVector *connectionLists = QObjectPrivate::get(c->sender)->connectionLists;
-        Q_ASSERT(connectionLists);
-        connectionLists->dirty = true;
+        // load receiver once again and recheck to ensure nobody else has removed the connection in the meantime
+        receiver = c->receiver.load();
+        if (!receiver)
+            return false;
 
-        *c->prev = c->next;
-        if (c->next)
-            c->next->prev = c->prev;
-        c->receiver = 0;
+        connections = QObjectPrivate::get(c->sender)->connections.load();
+        Q_ASSERT(connections);
+        connections->removeConnection(c);
     }
 
-    // destroy the QSlotObject, if possible
-    if (c->isSlotObject) {
-        c->slotObj->destroyIfLastRef();
-        c->isSlotObject = false;
-    }
+    connections->cleanOrphanedConnections(c->sender);
 
     c->sender->disconnectNotify(QMetaObjectPrivate::signal(c->sender->metaObject(),
                                                            c->signal_index));
 
-    const_cast<QMetaObject::Connection &>(connection).d_ptr = 0;
+    const_cast<QMetaObject::Connection &>(connection).d_ptr = nullptr;
     c->deref(); // has been removed from the QMetaObject::Connection object
 
     return true;
@@ -5137,7 +5141,7 @@ bool QMetaObject::Connection::isConnected_helper() const
     Q_ASSERT(d_ptr);    // we're only called from operator RestrictedBool() const
     QObjectPrivate::Connection *c = static_cast<QObjectPrivate::Connection *>(d_ptr);
 
-    return c->receiver;
+    return c->receiver.load();
 }
 
 
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 63c5a9ad73..1d83731441 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -142,8 +142,8 @@ public:
     inline bool isWidgetType() const { return d_ptr->isWidget; }
     inline bool isWindowType() const { return d_ptr->isWindow; }
 
-    inline bool signalsBlocked() const Q_DECL_NOTHROW { return d_ptr->blockSig; }
-    bool blockSignals(bool b) Q_DECL_NOTHROW;
+    inline bool signalsBlocked() const noexcept { return d_ptr->blockSig; }
+    bool blockSignals(bool b) noexcept;
 
     QThread *thread() const;
     void moveToThread(QThread *thread);
@@ -436,7 +436,7 @@ protected:
     QScopedPointer<QObjectData> d_ptr;
 
     static const QMetaObject staticQtMetaObject;
-    friend inline const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT;
+    friend inline const QMetaObject *qt_getQtMetaObject() noexcept;
 
     friend struct QMetaObject;
     friend struct QMetaObjectPrivate;
@@ -467,7 +467,7 @@ inline QMetaObject::Connection QObject::connect(const QObject *asender, const ch
                                             const char *amember, Qt::ConnectionType atype) const
 { return connect(asender, asignal, this, amember, atype); }
 
-inline const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT
+inline const QMetaObject *qt_getQtMetaObject() noexcept
 { return &QObject::staticQtMetaObject; }
 
 #ifndef QT_NO_USERDATA
@@ -540,17 +540,15 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
 class QSignalBlocker
 {
 public:
-    inline explicit QSignalBlocker(QObject *o) Q_DECL_NOTHROW;
-    inline explicit QSignalBlocker(QObject &o) Q_DECL_NOTHROW;
+    inline explicit QSignalBlocker(QObject *o) noexcept;
+    inline explicit QSignalBlocker(QObject &o) noexcept;
     inline ~QSignalBlocker();
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QSignalBlocker(QSignalBlocker &&other) Q_DECL_NOTHROW;
-    inline QSignalBlocker &operator=(QSignalBlocker &&other) Q_DECL_NOTHROW;
-#endif
+    inline QSignalBlocker(QSignalBlocker &&other) noexcept;
+    inline QSignalBlocker &operator=(QSignalBlocker &&other) noexcept;
 
-    inline void reblock() Q_DECL_NOTHROW;
-    inline void unblock() Q_DECL_NOTHROW;
+    inline void reblock() noexcept;
+    inline void unblock() noexcept;
 private:
     Q_DISABLE_COPY(QSignalBlocker)
     QObject * m_o;
@@ -558,20 +556,19 @@ private:
     bool m_inhibited;
 };
 
-QSignalBlocker::QSignalBlocker(QObject *o) Q_DECL_NOTHROW
+QSignalBlocker::QSignalBlocker(QObject *o) noexcept
     : m_o(o),
       m_blocked(o && o->blockSignals(true)),
       m_inhibited(false)
 {}
 
-QSignalBlocker::QSignalBlocker(QObject &o) Q_DECL_NOTHROW
+QSignalBlocker::QSignalBlocker(QObject &o) noexcept
     : m_o(&o),
       m_blocked(o.blockSignals(true)),
       m_inhibited(false)
 {}
 
-#ifdef Q_COMPILER_RVALUE_REFS
-QSignalBlocker::QSignalBlocker(QSignalBlocker &&other) Q_DECL_NOTHROW
+QSignalBlocker::QSignalBlocker(QSignalBlocker &&other) noexcept
     : m_o(other.m_o),
       m_blocked(other.m_blocked),
       m_inhibited(other.m_inhibited)
@@ -579,7 +576,7 @@ QSignalBlocker::QSignalBlocker(QSignalBlocker &&other) Q_DECL_NOTHROW
     other.m_o = nullptr;
 }
 
-QSignalBlocker &QSignalBlocker::operator=(QSignalBlocker &&other) Q_DECL_NOTHROW
+QSignalBlocker &QSignalBlocker::operator=(QSignalBlocker &&other) noexcept
 {
     if (this != &other) {
         // if both *this and other block the same object's signals:
@@ -594,7 +591,6 @@ QSignalBlocker &QSignalBlocker::operator=(QSignalBlocker &&other) Q_DECL_NOTHROW
     }
     return *this;
 }
-#endif
 
 QSignalBlocker::~QSignalBlocker()
 {
@@ -602,13 +598,13 @@ QSignalBlocker::~QSignalBlocker()
         m_o->blockSignals(m_blocked);
 }
 
-void QSignalBlocker::reblock() Q_DECL_NOTHROW
+void QSignalBlocker::reblock() noexcept
 {
     if (m_o) m_o->blockSignals(true);
     m_inhibited = false;
 }
 
-void QSignalBlocker::unblock() Q_DECL_NOTHROW
+void QSignalBlocker::unblock() noexcept
 {
     if (m_o) m_o->blockSignals(m_blocked);
     m_inhibited = true;
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index a762e6f529..2fb11ecc64 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2013 Olivier Goffart <ogoffart@woboq.com>
 ** Contact: https://www.qt.io/licensing/
 **
@@ -79,9 +79,9 @@ struct QSignalSpyCallbackSet
     EndCallback signal_end_callback,
                 slot_end_callback;
 };
-void Q_CORE_EXPORT qt_register_signal_spy_callbacks(const QSignalSpyCallbackSet &callback_set);
+void Q_CORE_EXPORT qt_register_signal_spy_callbacks(QSignalSpyCallbackSet *callback_set);
 
-extern QSignalSpyCallbackSet Q_CORE_EXPORT qt_signal_spy_callback_set;
+extern Q_CORE_EXPORT QBasicAtomicPointer<QSignalSpyCallbackSet> qt_signal_spy_callback_set;
 
 enum { QObjectPrivateVersion = QT_VERSION };
 
@@ -124,54 +124,199 @@ public:
     };
 
     typedef void (*StaticMetaCallFunction)(QObject *, QMetaObject::Call, int, void **);
-    struct Connection
+    struct Connection;
+    struct SignalVector;
+
+    struct ConnectionOrSignalVector {
+        union {
+            // linked list of orphaned connections that need cleaning up
+            ConnectionOrSignalVector *nextInOrphanList;
+            // linked list of connections connected to slots in this object
+            Connection *next;
+        };
+
+        static SignalVector *asSignalVector(ConnectionOrSignalVector *c) {
+            if (reinterpret_cast<quintptr>(c) & 1)
+                return reinterpret_cast<SignalVector *>(reinterpret_cast<quintptr>(c) & ~quintptr(1u));
+            return nullptr;
+        }
+        static Connection *fromSignalVector(SignalVector *v) {
+            return reinterpret_cast<Connection *>(reinterpret_cast<quintptr>(v) | quintptr(1u));
+        }
+    };
+
+    struct Connection : public ConnectionOrSignalVector
     {
+        // linked list of connections connected to slots in this object, next is in base class
+        Connection **prev;
+        // linked list of connections connected to signals in this object
+        QAtomicPointer<Connection> nextConnectionList;
+        Connection *prevConnectionList;
+
         QObject *sender;
-        QObject *receiver;
+        QAtomicPointer<QObject> receiver;
+        QAtomicPointer<QThreadData> receiverThreadData;
         union {
             StaticMetaCallFunction callFunction;
             QtPrivate::QSlotObjectBase *slotObj;
         };
-        // The next pointer for the singly-linked ConnectionList
-        Connection *nextConnectionList;
-        //senders linked list
-        Connection *next;
-        Connection **prev;
         QAtomicPointer<const int> argumentTypes;
         QAtomicInt ref_;
+        uint id = 0;
         ushort method_offset;
         ushort method_relative;
-        uint signal_index : 27; // In signal range (see QObjectPrivate::signalIndex())
+        int signal_index : 27; // In signal range (see QObjectPrivate::signalIndex())
         ushort connectionType : 3; // 0 == auto, 1 == direct, 2 == queued, 4 == blocking
         ushort isSlotObject : 1;
         ushort ownArgumentTypes : 1;
-        Connection() : nextConnectionList(nullptr), ref_(2), ownArgumentTypes(true) {
+        Connection() : ref_(2), ownArgumentTypes(true) {
             //ref_ is 2 for the use in the internal lists, and for the use in QMetaObject::Connection
         }
         ~Connection();
         int method() const { Q_ASSERT(!isSlotObject); return method_offset + method_relative; }
         void ref() { ref_.ref(); }
+        void freeSlotObject()
+        {
+            if (isSlotObject) {
+                slotObj->destroyIfLastRef();
+                isSlotObject = false;
+            }
+        }
         void deref() {
             if (!ref_.deref()) {
-                Q_ASSERT(!receiver);
+                Q_ASSERT(!receiver.load());
+                Q_ASSERT(!isSlotObject);
                 delete this;
             }
         }
     };
     // ConnectionList is a singly-linked list
     struct ConnectionList {
-        ConnectionList() : first(nullptr), last(nullptr) {}
-        Connection *first;
-        Connection *last;
+        QAtomicPointer<Connection> first;
+        QAtomicPointer<Connection> last;
     };
 
     struct Sender
     {
+        Sender(QObject *receiver, QObject *sender, int signal)
+            : receiver(receiver), sender(sender), signal(signal)
+        {
+            if (receiver) {
+                ConnectionData *cd = receiver->d_func()->connections.load();
+                previous = cd->currentSender;
+                cd->currentSender = this;
+            }
+        }
+        ~Sender()
+        {
+            if (receiver)
+                receiver->d_func()->connections.load()->currentSender = previous;
+        }
+        void receiverDeleted()
+        {
+            Sender *s = this;
+            while (s) {
+                s->receiver = nullptr;
+                s = s->previous;
+            }
+        }
+        Sender *previous;
+        QObject *receiver;
         QObject *sender;
         int signal;
-        int ref;
     };
 
+    struct SignalVector : public ConnectionOrSignalVector {
+        quintptr allocated;
+        // ConnectionList signals[]
+        ConnectionList &at(int i)
+        {
+            return reinterpret_cast<ConnectionList *>(this + 1)[i + 1];
+        }
+        const ConnectionList &at(int i) const
+        {
+            return reinterpret_cast<const ConnectionList *>(this + 1)[i + 1];
+        }
+        int count() { return static_cast<int>(allocated); }
+    };
+
+
+
+    /*
+        This contains the all connections from and to an object.
+
+        The signalVector contains the lists of connections for a given signal. The index in the vector correspond
+        to the signal index. The signal index is the one returned by QObjectPrivate::signalIndex (not
+        QMetaObject::indexOfSignal). allsignals contains a list of special connections that will get invoked on
+        any signal emission. This is done by connecting to signal index -1.
+
+        This vector is protected by the object mutex (signalSlotLock())
+
+        Each Connection is also part of a 'senders' linked list. This one contains all connections connected
+        to a slot in this object. The mutex of the receiver must be locked when touching the pointers of this
+        linked list.
+    */
+    struct ConnectionData {
+        // the id below is used to avoid activating new connections. When the object gets
+        // deleted it's set to 0, so that signal emission stops
+        QAtomicInteger<uint> currentConnectionId;
+        QAtomicInt ref;
+        QAtomicPointer<SignalVector> signalVector;
+        Connection *senders = nullptr;
+        Sender *currentSender = nullptr;   // object currently activating the object
+        QAtomicPointer<Connection> orphaned;
+
+        ~ConnectionData()
+        {
+            deleteOrphaned(orphaned.load());
+            SignalVector *v = signalVector.load();
+            if (v)
+                free(v);
+        }
+
+        // must be called on the senders connection data
+        // assumes the senders and receivers lock are held
+        void removeConnection(Connection *c);
+        void cleanOrphanedConnections(QObject *sender)
+        {
+            if (orphaned.load() && ref == 1)
+                cleanOrphanedConnectionsImpl(sender);
+        }
+        void cleanOrphanedConnectionsImpl(QObject *sender);
+
+        ConnectionList &connectionsForSignal(int signal)
+        {
+            return signalVector.load()->at(signal);
+        }
+
+        void resizeSignalVector(uint size) {
+            SignalVector *vector = this->signalVector.load();
+            if (vector && vector->allocated > size)
+                return;
+            size = (size + 7) & ~7;
+            SignalVector *newVector = reinterpret_cast<SignalVector *>(malloc(sizeof(SignalVector) + (size + 1) * sizeof(ConnectionList)));
+            int start = -1;
+            if (vector) {
+                memcpy(newVector, vector, sizeof(SignalVector) + (vector->allocated + 1) * sizeof(ConnectionList));
+                start = vector->count();
+            }
+            for (int i = start; i < int(size); ++i)
+                newVector->at(i) = ConnectionList();
+            newVector->next = nullptr;
+            newVector->allocated = size;
+
+            signalVector.store(newVector);
+            if (vector) {
+                vector->nextInOrphanList = orphaned.load();
+                orphaned.store(ConnectionOrSignalVector::fromSignalVector(vector));
+            }
+        }
+        int signalVectorCount() const {
+            return  signalVector ? signalVector.load()->count() : -1;
+        }
+
+        static void deleteOrphaned(ConnectionOrSignalVector *c);
+    };
 
     QObjectPrivate(int version = QObjectPrivateVersion);
     virtual ~QObjectPrivate();
@@ -187,13 +332,6 @@ public:
     QObjectList senderList() const;
 
     void addConnection(int signal, Connection *c);
-    void cleanConnectionLists();
-
-    static inline Sender *setCurrentSender(QObject *receiver,
-                                    Sender *sender);
-    static inline void resetCurrentSender(QObject *receiver,
-                                   Sender *currentSender,
-                                   Sender *previousSender);
 
     static QObjectPrivate *get(QObject *o) {
         return o->d_func();
@@ -201,7 +339,8 @@ public:
     static const QObjectPrivate *get(const QObject *o) { return o->d_func(); }
 
     int signalIndex(const char *signalName, const QMetaObject **meta = nullptr) const;
-    inline bool isSignalConnected(uint signalIdx, bool checkDeclarative = true) const;
+    bool isSignalConnected(uint signalIdx, bool checkDeclarative = true) const;
+    bool maybeSignalConnected(uint signalIndex) const;
     inline bool isDeclarativeSignalConnected(uint signalIdx) const;
 
     // To allow abitrary objects to call connectNotify()/disconnectNotify() without making
@@ -224,15 +363,21 @@ public:
                                                const int *types, const QMetaObject *senderMetaObject);
     static QMetaObject::Connection connect(const QObject *sender, int signal_index, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type);
     static bool disconnect(const QObject *sender, int signal_index, void **slot);
+
+    void ensureConnectionData()
+    {
+        if (connections.load())
+            return;
+        ConnectionData *cd = new ConnectionData;
+        cd->ref.ref();
+        connections.store(cd);
+    }
 public:
     ExtraData *extraData;    // extra data set by the user
     QThreadData *threadData; // id of the thread that owns the object
 
-    QObjectConnectionListVector *connectionLists;
-
-    Connection *senders;     // linked list of connections connected to this object
-    Sender *currentSender;   // object currently activating the object
-    mutable quint32 connectedSignals[2];
+    using ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>;
+    QAtomicPointer<ConnectionData> connections;
 
     union {
         QObject *currentChildBeingDeleted; // should only be used when QObjectData::isDeletingChildren is set
@@ -246,47 +391,12 @@ public:
 
 Q_DECLARE_TYPEINFO(QObjectPrivate::ConnectionList, Q_MOVABLE_TYPE);
 
-/*! \internal
-
-  Returns \c true if the signal with index \a signal_index from object \a sender is connected.
-  Signals with indices above a certain range are always considered connected (see connectedSignals
-  in QObjectPrivate).
-
-  \a signal_index must be the index returned by QObjectPrivate::signalIndex;
-*/
-inline bool QObjectPrivate::isSignalConnected(uint signal_index, bool checkDeclarative) const
-{
-    return signal_index >= sizeof(connectedSignals) * 8
-        || (connectedSignals[signal_index >> 5] & (1 << (signal_index & 0x1f))
-        || (checkDeclarative && isDeclarativeSignalConnected(signal_index)));
-}
-
 inline bool QObjectPrivate::isDeclarativeSignalConnected(uint signal_index) const
 {
     return declarativeData && QAbstractDeclarativeData::isSignalConnected
             && QAbstractDeclarativeData::isSignalConnected(declarativeData, q_func(), signal_index);
 }
 
-inline QObjectPrivate::Sender *QObjectPrivate::setCurrentSender(QObject *receiver,
-                                                         Sender *sender)
-{
-    Sender *previousSender = receiver->d_func()->currentSender;
-    receiver->d_func()->currentSender = sender;
-    return previousSender;
-}
-
-inline void QObjectPrivate::resetCurrentSender(QObject *receiver,
-                                        Sender *currentSender,
-                                        Sender *previousSender)
-{
-    // ref is set to zero when this object is deleted during the metacall
-    if (currentSender->ref == 1)
-        receiver->d_func()->currentSender = previousSender;
-    // if we've recursed, we need to tell the caller about the objects deletion
-    if (previousSender)
-        previousSender->ref = currentSender->ref;
-}
-
 inline void QObjectPrivate::connectNotify(const QMetaMethod &signal)
 {
     q_ptr->connectNotify(signal);
@@ -372,7 +482,26 @@ Q_DECLARE_TYPEINFO(QObjectPrivate::Connection, Q_MOVABLE_TYPE);
 Q_DECLARE_TYPEINFO(QObjectPrivate::Sender, Q_MOVABLE_TYPE);
 
 class QSemaphore;
-class Q_CORE_EXPORT QMetaCallEvent : public QEvent
+class Q_CORE_EXPORT QAbstractMetaCallEvent : public QEvent
+{
+public:
+    QAbstractMetaCallEvent(const QObject *sender, int signalId, QSemaphore *semaphore = nullptr)
+        : QEvent(MetaCall), signalId_(signalId), sender_(sender), semaphore_(semaphore)
+    {}
+    ~QAbstractMetaCallEvent();
+
+    virtual void placeMetaCall(QObject *object) = 0;
+
+    inline const QObject *sender() const { return sender_; }
+    inline int signalId() const { return signalId_; }
+
+private:
+    int signalId_;
+    const QObject *sender_;
+    QSemaphore *semaphore_;
+};
+
+class Q_CORE_EXPORT QMetaCallEvent : public QAbstractMetaCallEvent
 {
 public:
     QMetaCallEvent(ushort method_offset, ushort method_relative, QObjectPrivate::StaticMetaCallFunction callFunction , const QObject *sender, int signalId,
@@ -383,23 +512,18 @@ public:
     QMetaCallEvent(QtPrivate::QSlotObjectBase *slotObj, const QObject *sender, int signalId,
                    int nargs = 0, int *types = nullptr, void **args = nullptr, QSemaphore *semaphore = nullptr);
 
-    ~QMetaCallEvent();
+    ~QMetaCallEvent() override;
 
     inline int id() const { return method_offset_ + method_relative_; }
-    inline const QObject *sender() const { return sender_; }
-    inline int signalId() const { return signalId_; }
     inline void **args() const { return args_; }
 
-    virtual void placeMetaCall(QObject *object);
+    virtual void placeMetaCall(QObject *object) override;
 
 private:
     QtPrivate::QSlotObjectBase *slotObj_;
-    const QObject *sender_;
-    int signalId_;
     int nargs_;
     int *types_;
     void **args_;
-    QSemaphore *semaphore_;
     QObjectPrivate::StaticMetaCallFunction callFunction_;
     ushort method_offset_;
     ushort method_relative_;
diff --git a/src/corelib/kernel/qobjectdefs.h b/src/corelib/kernel/qobjectdefs.h
index 059bb44e10..0bceab6fb4 100644
--- a/src/corelib/kernel/qobjectdefs.h
+++ b/src/corelib/kernel/qobjectdefs.h
@@ -64,11 +64,7 @@ class QString;
 // The following macros can be defined by tools that understand Qt
 // to have the information from the macro.
 #ifndef QT_ANNOTATE_CLASS
-# ifndef Q_COMPILER_VARIADIC_MACROS
-#  define QT_ANNOTATE_CLASS(type, x)
-# else
-#  define QT_ANNOTATE_CLASS(type, ...)
-# endif
+# define QT_ANNOTATE_CLASS(type, ...)
 #endif
 #ifndef QT_ANNOTATE_CLASS2
 # define QT_ANNOTATE_CLASS2(type, a1, a2)
@@ -105,11 +101,7 @@ class QString;
 #endif
 #define Q_PLUGIN_METADATA(x) QT_ANNOTATE_CLASS(qt_plugin_metadata, x)
 #define Q_INTERFACES(x) QT_ANNOTATE_CLASS(qt_interfaces, x)
-#ifdef Q_COMPILER_VARIADIC_MACROS
-# define Q_PROPERTY(...) QT_ANNOTATE_CLASS(qt_property, __VA_ARGS__)
-#else
-# define Q_PROPERTY(text) QT_ANNOTATE_CLASS(qt_property, text)
-#endif
+#define Q_PROPERTY(...) QT_ANNOTATE_CLASS(qt_property, __VA_ARGS__)
 #define Q_PRIVATE_PROPERTY(d, text) QT_ANNOTATE_CLASS2(qt_private_property, d, text)
 #ifndef Q_REVISION
 # define Q_REVISION(v)
@@ -119,13 +111,13 @@ class QString;
 #define Q_ENUMS(x) QT_ANNOTATE_CLASS(qt_enums, x)
 #define Q_FLAGS(x) QT_ANNOTATE_CLASS(qt_enums, x)
 #define Q_ENUM_IMPL(ENUM) \
-    friend Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return &staticMetaObject; } \
-    friend Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; }
+    friend Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return &staticMetaObject; } \
+    friend Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; }
 #define Q_ENUM(x) Q_ENUMS(x) Q_ENUM_IMPL(x)
 #define Q_FLAG(x) Q_FLAGS(x) Q_ENUM_IMPL(x)
 #define Q_ENUM_NS_IMPL(ENUM) \
-    inline Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return &staticMetaObject; } \
-    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; }
+    inline Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return &staticMetaObject; } \
+    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; }
 #define Q_ENUM_NS(x) Q_ENUMS(x) Q_ENUM_NS_IMPL(x)
 #define Q_FLAG_NS(x) Q_FLAGS(x) Q_ENUM_NS_IMPL(x)
 #define Q_SCRIPTABLE QT_ANNOTATE_FUNCTION(qt_scriptable)
@@ -340,7 +332,7 @@ struct Q_CORE_EXPORT QMetaObject
     const char *className() const;
     const QMetaObject *superClass() const;
 
-    bool inherits(const QMetaObject *metaObject) const Q_DECL_NOEXCEPT;
+    bool inherits(const QMetaObject *metaObject) const noexcept;
     QObject *cast(QObject *obj) const;
     const QObject *cast(const QObject *obj) const;
 
@@ -584,6 +576,7 @@ struct Q_CORE_EXPORT QMetaObject
 
 private:
     static bool invokeMethodImpl(QObject *object, QtPrivate::QSlotObjectBase *slot, Qt::ConnectionType type, void *ret);
+    friend class QTimer;
 };
 
 class Q_CORE_EXPORT QMetaObject::Connection {
@@ -605,8 +598,8 @@ public:
     operator RestrictedBool() const { return d_ptr && isConnected_helper() ? &Connection::d_ptr : nullptr; }
 #endif
 
-    Connection(Connection &&o) Q_DECL_NOTHROW : d_ptr(o.d_ptr) { o.d_ptr = nullptr; }
-    Connection &operator=(Connection &&other) Q_DECL_NOTHROW
+    Connection(Connection &&o) noexcept : d_ptr(o.d_ptr) { o.d_ptr = nullptr; }
+    Connection &operator=(Connection &&other) noexcept
     { qSwap(d_ptr, other.d_ptr); return *this; }
 };
 
diff --git a/src/corelib/kernel/qobjectdefs_impl.h b/src/corelib/kernel/qobjectdefs_impl.h
index aa6bd84e95..31ecc8b20d 100644
--- a/src/corelib/kernel/qobjectdefs_impl.h
+++ b/src/corelib/kernel/qobjectdefs_impl.h
@@ -386,8 +386,8 @@ namespace QtPrivate {
     public:
         explicit QSlotObjectBase(ImplFn fn) : m_ref(1), m_impl(fn) {}
 
-        inline int ref() Q_DECL_NOTHROW { return m_ref.ref(); }
-        inline void destroyIfLastRef() Q_DECL_NOTHROW
+        inline int ref() noexcept { return m_ref.ref(); }
+        inline void destroyIfLastRef() noexcept
         { if (!m_ref.deref()) m_impl(Destroy, this, nullptr, nullptr, nullptr); }
 
         inline bool compare(void **a) { bool ret = false; m_impl(Compare, this, nullptr, a, &ret); return ret; }
diff --git a/src/corelib/kernel/qppsattribute.cpp b/src/corelib/kernel/qppsattribute.cpp
index 6be462edb5..166d590872 100644
--- a/src/corelib/kernel/qppsattribute.cpp
+++ b/src/corelib/kernel/qppsattribute.cpp
@@ -145,7 +145,6 @@ QPpsAttribute &QPpsAttribute::operator=(const QPpsAttribute &other)
     return *this;
 }
 
-#ifdef Q_COMPILER_RVALUE_REFS
 QPpsAttribute::QPpsAttribute(QPpsAttribute &&other) : d(other.d)
 {
     other.d->type = QPpsAttribute::None;
@@ -156,7 +155,6 @@ QPpsAttribute &QPpsAttribute::operator=(QPpsAttribute &&other)
     qSwap(d, other.d);
     return *this;
 }
-#endif
 
 bool QPpsAttribute::operator==(const QPpsAttribute &other) const
 {
diff --git a/src/corelib/kernel/qppsattribute_p.h b/src/corelib/kernel/qppsattribute_p.h
index b59dcd5851..d6611cb675 100644
--- a/src/corelib/kernel/qppsattribute_p.h
+++ b/src/corelib/kernel/qppsattribute_p.h
@@ -96,10 +96,8 @@ public:
     bool operator==(const QPpsAttribute &other) const;
     bool operator!=(const QPpsAttribute &other) const;
 
-#ifdef Q_COMPILER_RVALUE_REFS
     QPpsAttribute(QPpsAttribute &&other);
     QPpsAttribute &operator=(QPpsAttribute &&other);
-#endif
 
     bool isValid() const;
     Type type() const;
diff --git a/src/corelib/kernel/qsharedmemory_p.h b/src/corelib/kernel/qsharedmemory_p.h
index 95fe0d1083..59802eb6ce 100644
--- a/src/corelib/kernel/qsharedmemory_p.h
+++ b/src/corelib/kernel/qsharedmemory_p.h
@@ -98,7 +98,7 @@ public:
     {
         if (q_sm && q_sm->lock())
             return true;
-        q_sm = 0;
+        q_sm = nullptr;
         return false;
     }
 
diff --git a/src/corelib/kernel/qtcore_eval.cpp b/src/corelib/kernel/qtcore_eval.cpp
deleted file mode 100644
index 5437210699..0000000000
--- a/src/corelib/kernel/qtcore_eval.cpp
+++ /dev/null
@@ -1,560 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <qcoreevent.h>
-#include <qdatetime.h>
-#include <qlibraryinfo.h>
-#include <qobject.h>
-#include <qcoreapplication.h>
-#include <private/qcoreapplication_p.h>
-
-#include "stdio.h"
-#include "stdlib.h"
-
-QT_BEGIN_NAMESPACE
-
-#include "qconfig_eval.cpp"
-
-static const char boilerplate_supported_but_time_limited[] =
-    "\nQt %1 Evaluation License\n"
-    "Copyright (C) 2016 The Qt Company Ltd.\n"
-    "This trial version may only be used for evaluation purposes\n"
-    "and will shut down after 120 minutes.\n"
-    "Registered to:\n"
-    "   Licensee: %2\n\n"
-    "The evaluation expires in %4 days\n\n"
-    "Contact http://www.qt.io/contact-us for pricing and purchasing information.\n";
-
-static const char boilerplate_supported[] =
-    "\nQt %1 Evaluation License\n"
-    "Copyright (C) 2016 The Qt Company Ltd.\n"
-    "This trial version may only be used for evaluation purposes\n"
-    "Registered to:\n"
-    "   Licensee: %2\n\n"
-    "The evaluation expires in %4 days\n\n"
-    "Contact http://www.qt.io/contact-us for pricing and purchasing information.\n";
-
-static const char boilerplate_expired[] =
-    "This software is using the trial version of the Qt GUI toolkit.\n"
-    "The trial period has expired. If you need more time to\n"
-    "evaluate Qt, or if you have any questions about Qt, contact us\n"
-    "at: http://www.qt.io/contact-us.\n\n";
-
-static const char will_shutdown_1min[] =
-    "\nThe evaluation of Qt will SHUT DOWN in 1 minute.\n"
-    "Contact http://www.qt.io/contact-us for pricing and purchasing information.\n";
-
-static const char will_shutdown_now[] =
-    "\nThe evaluation of Qt has now reached its automatic\n"
-    "timeout and will shut down.\n"
-    "Contact http://www.qt.io/contact-us for pricing and purchasing information.\n";
-
-enum EvaluationStatus {
-    EvaluationNotSupported = 0,
-    EvaluationSupportedButTimeLimited,
-    EvaluationSupported
-};
-
-static EvaluationStatus qt_eval_is_supported()
-{
-    const volatile char *const license_key = qt_eval_key_data + 12;
-
-    // fast fail
-    if (!qt_eval_key_data[0] || !*license_key)
-        return EvaluationNotSupported;
-
-    // is this an unsupported evaluation?
-    const volatile char *typecode = license_key;
-    int field = 2;
-    for ( ; field && *typecode; ++typecode)
-        if (*typecode == '-')
-            --field;
-
-    if (!field && typecode[1] == '4' && typecode[2] == 'M') {
-        if (typecode[0] == 'Q')
-            return EvaluationSupportedButTimeLimited;
-        else if (typecode[0] == 'R' || typecode[0] == 'Z')
-            return EvaluationSupported;
-    }
-    return EvaluationNotSupported;
-}
-
-static int qt_eval_days_left()
-{
-    const volatile char *const expiry_date = qt_eval_expiry_date + 12;
-
-    QDate today = QDate::currentDate();
-    QDate lastday = QDate::fromString(
-                QString::fromLatin1(const_cast<const char*>(expiry_date)), Qt::ISODate);
-    return today.daysTo(lastday);
-}
-
-static bool qt_eval_is_expired()
-{
-    return qt_eval_days_left() < 0;
-}
-
-static QString qt_eval_string()
-{
-    const char *msg;
-    switch (qt_eval_is_supported()) {
-    case EvaluationSupportedButTimeLimited:
-        msg = boilerplate_supported_but_time_limited;
-        break;
-    case EvaluationSupported:
-        msg = boilerplate_supported;
-        break;
-    default:
-        return QString();
-    }
-
-    return QString::fromLatin1(msg)
-        .arg(QLatin1String(QT_VERSION_STR))
-        .arg(QLibraryInfo::licensee())
-        .arg(qt_eval_days_left());
-}
-
-#define WARN_TIMEOUT 60 * 1000 * 119
-#define KILL_DELAY 60 * 1000 * 1
-
-class QCoreFuriCuri : public QObject
-{
-public:
-
-    int warn;
-    int kill;
-
-    QCoreFuriCuri() : QObject(), warn(-1), kill(-1)
-    {
-        if (qt_eval_is_supported() == EvaluationSupportedButTimeLimited) {
-            warn = startTimer(WARN_TIMEOUT);
-            kill = 0;
-        }
-    }
-
-    void timerEvent(QTimerEvent *e) override {
-        if (e->timerId() == warn) {
-            killTimer(warn);
-            fprintf(stderr, "%s\n", will_shutdown_1min);
-            kill = startTimer(KILL_DELAY);
-        } else if (e->timerId() == kill) {
-            fprintf(stderr, "%s\n", will_shutdown_now);
-            QCoreApplication::instance()->quit();
-        }
-    }
-};
-
-#if defined(QT_BUILD_CORE_LIB) || defined (QT_BOOTSTRAPPED)
-
-void qt_core_eval_init(QCoreApplicationPrivate::Type type)
-{
-    if (type != QCoreApplicationPrivate::Tty)
-        return;
-
-    if (!qt_eval_is_supported())
-        return;
-
-    if (qt_eval_is_expired()) {
-        fprintf(stderr, "%s\n", boilerplate_expired);
-        exit(0);
-    } else {
-        fprintf(stderr, "%s\n", qPrintable(qt_eval_string()));
-        Q_UNUSED(new QCoreFuriCuri());
-    }
-}
-#endif
-
-#ifdef QT_BUILD_WIDGETS_LIB
-
-QT_BEGIN_INCLUDE_NAMESPACE
-#include <qdialog.h>
-#include <qlabel.h>
-#include <qlayout.h>
-#include <qmessagebox.h>
-#if QT_CONFIG(pushbutton)
-#include <qpushbutton.h>
-#endif
-#include <qtimer.h>
-#include <qapplication.h>
-QT_END_INCLUDE_NAMESPACE
-
-
-static const char * const qtlogo_eval_xpm[] = {
-/* columns rows colors chars-per-pixel */
-"46 55 174 2",
-"   c #002E02",
-".  c #00370D",
-"X  c #003A0E",
-"o  c #003710",
-"O  c #013C13",
-"+  c #043E1A",
-"@  c #084F0A",
-"#  c #0B520C",
-"$  c #054413",
-"%  c #0C4C17",
-"&  c #07421D",
-"*  c #09451D",
-"=  c #0D491E",
-"-  c #125515",
-";  c #13541A",
-":  c #17591B",
-">  c #1B5C1D",
-",  c #1F611F",
-"<  c #20621E",
-"1  c #337B1E",
-"2  c #0B4521",
-"3  c #0F4923",
-"4  c #114B24",
-"5  c #154D2A",
-"6  c #175323",
-"7  c #1C5924",
-"8  c #1C532F",
-"9  c #1E5432",
-"0  c #245936",
-"q  c #265938",
-"w  c #295C3B",
-"e  c #246324",
-"r  c #266823",
-"t  c #2A6C24",
-"y  c #276628",
-"u  c #2D7026",
-"i  c #327427",
-"p  c #367927",
-"a  c #37782A",
-"s  c #397C2A",
-"d  c #2E613E",
-"f  c #336C37",
-"g  c #2F6040",
-"h  c #356545",
-"j  c #3C6B4E",
-"k  c #3F6C51",
-"l  c #406E4F",
-"z  c #406D52",
-"x  c #477457",
-"c  c #497557",
-"v  c #4B7857",
-"b  c #517B5E",
-"n  c #3C8423",
-"m  c #3E812C",
-"M  c #53A61D",
-"N  c #41862C",
-"B  c #458A2D",
-"V  c #498F2D",
-"C  c #479324",
-"Z  c #489226",
-"A  c #4D952C",
-"S  c #478B30",
-"D  c #488C30",
-"F  c #4D9232",
-"G  c #509632",
-"H  c #549A33",
-"J  c #589F35",
-"K  c #56A526",
-"L  c #57A821",
-"P  c #5BAA27",
-"I  c #57A32A",
-"U  c #5CA72E",
-"Y  c #5DAB2A",
-"T  c #5CA336",
-"R  c #60AD2E",
-"E  c #63B12D",
-"W  c #65AF35",
-"Q  c #62A53F",
-"!  c #65AE39",
-"~  c #66B036",
-"^  c #6AB437",
-"/  c #67B138",
-"(  c #6AB339",
-")  c #6DB838",
-"_  c #70BA3C",
-"`  c #4D8545",
-"'  c #4E8942",
-"]  c #548851",
-"[  c #6FAF4A",
-"{  c #6DB243",
-"}  c #71B546",
-"|  c #70B840",
-" . c #73B648",
-".. c #79BA4E",
-"X. c #7CBB53",
-"o. c #598266",
-"O. c #62886D",
-"+. c #6A8F75",
-"@. c #6B9173",
-"#. c #70937A",
-"$. c #799F79",
-"%. c #7BAF66",
-"&. c #81BD5B",
-"*. c #85BF60",
-"=. c #85AC7F",
-"-. c #8DBA7B",
-";. c #87C061",
-":. c #8AC364",
-">. c #8DC46A",
-",. c #90C56E",
-"<. c #93C771",
-"1. c #96CA73",
-"2. c #9ACB7C",
-"3. c #9FD07D",
-"4. c #779981",
-"5. c #7F9F89",
-"6. c #809F88",
-"7. c #82A18B",
-"8. c #86A192",
-"9. c #8DA994",
-"0. c #8FA998",
-"q. c #94AF9B",
-"w. c #97B991",
-"e. c #97B19E",
-"r. c #9DB6A3",
-"t. c #A3BCA7",
-"y. c #A6BCAB",
-"u. c #A9BEB1",
-"i. c #9ECD81",
-"p. c #A2CF85",
-"a. c #A5D284",
-"s. c #A6D189",
-"d. c #A9D28E",
-"f. c #ABD491",
-"g. c #B1D797",
-"h. c #B1D699",
-"j. c #B5D89E",
-"k. c #ADC5AC",
-"l. c #B1CAAE",
-"z. c #B9DAA3",
-"x. c #BDDDA8",
-"c. c #ADC1B4",
-"v. c #B2C6B6",
-"b. c #B5C6BC",
-"n. c #B6C9BA",
-"m. c #BCD1BA",
-"M. c #C6E1B4",
-"N. c #CDE5BD",
-"B. c #C2D2C6",
-"V. c #CADEC2",
-"C. c #C6D3CC",
-"Z. c #C8D7CB",
-"A. c #CEDAD2",
-"S. c #D2DDD4",
-"D. c #D3E9C6",
-"F. c #D7EBC9",
-"G. c #D9EBCD",
-"H. c #DEEED4",
-"J. c #D6E0D9",
-"K. c #DAE4DC",
-"L. c #E0EFD7",
-"P. c #E5F2DD",
-"I. c #DFE8E0",
-"U. c #E4EBE5",
-"Y. c #E9EFEA",
-"T. c #EDF4EB",
-"R. c #F0FAE6",
-"E. c #F1F8EC",
-"W. c #EDF0F0",
-"Q. c #F4F7F3",
-"!. c #F6F9F4",
-"~. c #F8FAF7",
-"^. c #FEFEFE",
-"/. c None",
-/* pixels */
-"/././././.c h ' Q / W _ &.p././././././././././././././././././././././././././././././././.",
-"/././.4 O % Z ~ ~ W ~ W R U R R ( X.>.p././././././././././././././././././././././././././.",
-"/./.. * = J _ ~ ~ ~ ~ ~ / / / / W W U P P U W  .;.2././././././././././././././././././././.",
-"/.= = & a ) W ~ ~ ~ ~ ~ / W / ~ ~ ~ ^ ( ( ^ ~ R R U P Y ~  .;.2././././././././././././././.",
-"O.O = = T ^ W ~ ~ ~ ~ ~ ~ W W / W ~ ~ ~ ~ ~ ~ ~ ( ( ( ( ~ W Y Y Y Y W { &.1././././././././.",
-"0 = * 7 ~ ~ ~ ~ ~ ~ ~ ~ ~ / / W ~ ~ ~ ~ ~ ~ ~ ~ W W W ~ ~ ~ ~ ( ( ( W W R U P U W { X.1.f./.",
-"= = & e ^ W ~ ~ ~ ~ ~ ~ ~ ~ / / ~ ~ ~ ~ ~ ~ ~ ~ W ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ^ ( ( / ~ W R U U Y ",
-"= = & e ^ W ~ ~ ~ ~ ~ ~ ~ ~ W W ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ( W ~ ~ ~ ^ ^ ( ",
-"= = * e ^ W ~ ~ ~ ~ ~ ~ / W / W ! ( / ~ W ^ ( ( ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ~ W W ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ ! ~ ~ ~ ~ ~ ~ W W ^ _ ~ K Y W W R P Y W ( ~ ~ ~ ~ ~ ~ ~ W / ~ ~ ~ ^ W ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ ~ ~ ~ ~ W ) W 1 ` w.V.L.H.D.z.,.~ Y ^ ~ ~ ~ ~ ~ W ~ ~ ~ ( ~ W W ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ ~ ~ ~ W ) V = 8.~.^.^.^.^.^.^.^.U.<.Y ~ ~ ~ ~ ~ W W ! ~ Y W ^ W ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ ~ ~ W ^ B O u.^.~.^.^.^.^.~.~.^.^.^.h.Y ^ ~ ~ ^ F $ k.R.G.1.Y / ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ ~ ~ ~ / W ( J X 7.^.~.^.^.^.^.^.^.^.^.^.^.^.s.Y / W ) a 2 U.^.^.d.U ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W / ~ ~ ~ ^ > w ~.^.^.^.^.^.F.%.v c.^.^.^.^.~.X.W ~ ^ > h ^.^.^.d.P ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ W ^ H o e.^.^.^.^.^.G.Y E n . y.^.^.^.^.M.Y ( ! $ @.^.~.^.f.U ( / ~ ~ W ~ ~ ",
-"= = & e ^ W ~ W ! ) t 4 U.^.^.^.^.^.>.U ( _ , 9 ~.^.^.^.~...^ A   y.^.~.^.s.M W Y ~ ~ ~ ~ ~ ",
-"= 3 & e ^ W ~ ( ^ ( $ c ^.^.^.^.^.E.) ~ ~ ^ S o n.^.^.^.^.=.- l.v.Y.^.^.^.M.:.:.X.~ ~ ~ ~ ~ ",
-"= = & e ^ ! W W ( J X 7.^.^.^.^.^.F.Y ( W ^ T X 6.^.^.~.^.c.. J.^.^.^.^.^.^.^.^.P.~ ~ ~ ~ ~ ",
-"= = & r ^ W / W ) B o v.^.~.^.^.^.M.U / ~ ~ ! $ o.^.^.^.^.K.* S.^.^.^.^.^.^.^.^.P.~ ~ ~ ~ ~ ",
-"= = & e ^ ! ~ W ) a + S.^.^.^.^.^.z.P ( W ~ ( % z ^.^.^.^.~.f t.U.^.^.^.^.~.^.^.P.~ ~ ~ ~ ~ ",
-"* = & e ^ W ~ W ) t 3 Y.^.^.^.^.^.f.P ( ~ ~ ^ ; h ^.^.^.^.^.:.@ j ^.^.^.^.h.{ X.&.~ ~ ~ ~ ~ ",
-"3 = & e ^ W ~ ~ ^ e 8 Q.^.^.^.^.^.s.P ~ ~ W ^ > 0 ~.^.^.^.^.1.# z ^.^.^.^.d.L W R ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ ^ > q ~.^.^.^.^.^.p.U ^ ~ W ) e 9 ~.^.^.^.^.3.# k ^.^.^.^.f.Y ( / ~ ~ ~ ~ ~ ",
-"= = & e ^ W / W ^ > w ~.^.^.^.^.^.i.Y / ~ W ^ e 8 Q.^.^.^.^.a.# z ^.^.^.^.f.Y / ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W / W ^ > w ^.^.^.^.^.^.2.Y / ~ ~ ) e 8 Q.^.^.^.^.s.# z ^.^.^.^.d.P ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W W W ^ > q ^.^.^.^.^.^.p.Y / ~ ~ ^ e 9 Q.^.^.^.^.a.@ z ^.^.^.^.f.U / ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W / W ) 7 9 Q.^.^.^.^.^.a.P / ~ W ) , 9 Q.^.^.^.^.3.# z ^.^.~.^.f.P ^ ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W / W ) r 5 T.^.^.^.^.^.d.Y / ~ W ) > q ~.^.^.^.^.1.# k ^.^.^.^.f.Y ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ / / W ) i 2 I.^.^.^.^.^.h.P ( ~ W ( > g ^.^.^.^.^.:.# z ^.^.^.^.f.P / ~ ~ ~ ~ ~ ~ ",
-"= = & e ( W / W ) m O Z.^.^.^.^.^.x.P / ~ ~ ( ; j ^.^.^.^.~.&.- k ^.^.~.^.f.P / ~ ~ ~ ~ ~ ~ ",
-"= = & e ( W / W ) F o y.^.~.^.^.^.N.U ( ~ ~ W $ b ^.^.^.^.R._ - k ^.^.^.^.f.Y ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ ^ J X 4.^.^.^.^.^.L.~ ~ W ^ T X #.^.^.^.^.F.~ ; j ^.^.^.^.f.U ( ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ ~ ~ ~ / ^ % l ^.^.^.^.^.!. .R ^ ^ G . r.^.~.^.^.j.E : j ^.^.^.^.f.P ) ( ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ W ) u = U.^.^.^.^.^.1.Y ! ) a & K.^.^.^.^.;.~ : j ^.^.~.^.z.M I I / ~ ~ W ~ ",
-"= = & e ( W ~ ~ W ( G . q.^.^.^.^.^.D.U ^ ! X o.^.^.^.^.P.~ ^ > g ^.^.^.^.E.-.$.m.X.W ~ ~ ~ ",
-"= = & e ^ / ~ ~ ^ ! ( > w ~.^.^.^.^.^.h.T > j T.^.^.~.^.a.Y _ i 3 U.^.^.^.^.^.^.^.X.R ~ ~ ~ ",
-"= = & e ^ / ~ ~ W W ^ H . 9.^.~.^.^.^.^.K.C.~.^.^.^.^.H.W W ^ T . q.^.~.^.^.^.^.^.X.R ~ ~ ~ ",
-"= = + e ^ W / ~ W W W ) m + B.^.~.^.^.^.^.^.^.^.^.^.E.X.Y ( W ^ B 6 y.^.^.^.E.D.2.( ~ ~ ~ ~ ",
-"= = * e ^ ! / ! W ^ W W ) a 4 b.^.^.^.^.^.^.^.^.^.P...Y ( ! W ! ^ W Z [ *.X.{ Y U ~ ~ ~ ~ ~ ",
-"= = & e ( W ~ ~ W / W / W ) A < +.A.~.^.^.^.^.!.p.W R ~ ~ ~ ~ ~ W / ) E U W W / ^ ~ ~ ~ ~ ~ ",
-"= = & e ^ W ~ ~ / W / / / W ( _ Z X 6.^.^.^.^.E.W ~ ^ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ / ~ ~ ~ ~ ~ ~ ~ ~ ",
-"= = & e ^ ~ ~ ~ W W / W ~ ~ ~ ~ ) ; h ^.^.^.^.^.d.M U ~ / ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ",
-"= = & e ^ W ~ ~ ^ W W / ~ ~ ~ W ) p + S.^.^.^.^.~.M.f. .W ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~  .",
-"= = & e ^ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ( T O +.^.~.^.^.^.^.^.&.Y ( ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ( Y 2.",
-"= = & e ( W ~ ~ ~ ~ ~ ~ ~ ~ ~ / W ) N + b.^.^.^.^.^.^.&.R ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W /.",
-"= = & e ^ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W ^ N 7 r.W.^.^.^.!.X.W ~ ~ W ~ W ~ ~ ~ ~ ~ ~ / ( ( K p./.",
-"= = & e ( W ~ ~ W ~ ~ ~ ~ ~ ~ ~ ~ ~ W ( W C Q &.:.X.| ~ ~ ~ ~ W ~ / ~ ( / ( ~ W E U P 1././.",
-"= = + e ^ / / / ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W / ) ^ R Y W W ~ ~ ( / ( / W R Y Y U R ( X.,././././.",
-"= = * e ( / ~ / ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ W W W ! ( ( ( W W E U P Y W ( X.,.d./././././././././.",
-"= = * e ( W ~ ~ ~ ~ W ! ~ W ~ W ~ ( ( / ^ W W U Y P W ( X.,.d./././././././././././././././.",
-"8 $ * e ( W ~ ~ ~ ! ( ( ( / ( W R Y Y Y R ( X.>.d./././././././././././././././././././././.",
-"/.d . y ^ / / / ( W Y Y P P W ( X.>.d./././././././././././././././././././././././././././.",
-"/./.h : ^ R R R W ( X.<.f./././././././././././././././././././././././././././././././././.",
-"/././.] _ *.3./././././././././././././././././././././././././././././././././././././././."
-};
-
-class EvalMessageBox : public QDialog
-{
-public:
-    EvalMessageBox(bool expired)
-    {
-        setWindowTitle(QLatin1String(" "));
-
-        QString str = expired ? QLatin1String(boilerplate_expired) : qt_eval_string();
-        str = str.trimmed();
-
-        QFrame *border = new QFrame(this);
-
-        QLabel *pixmap_label = new QLabel(border);
-        pixmap_label->setPixmap(QPixmap(qtlogo_eval_xpm));
-        pixmap_label->setAlignment(Qt::AlignTop);
-
-        QLabel *text_label = new QLabel(str, border);
-
-        QHBoxLayout *pm_and_text_layout = new QHBoxLayout();
-        pm_and_text_layout->addWidget(pixmap_label);
-        pm_and_text_layout->addWidget(text_label);
-
-        QVBoxLayout *master_layout = new QVBoxLayout(border);
-        master_layout->addLayout(pm_and_text_layout);
-
-        QVBoxLayout *border_layout = new QVBoxLayout(this);
-        border_layout->setMargin(0);
-        border_layout->addWidget(border);
-
-        if (expired) {
-            QPushButton *cmd = new QPushButton(QLatin1String("OK"), border);
-            cmd->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
-            cmd->setDefault(true);
-
-            QHBoxLayout *button_layout = new QHBoxLayout();
-            master_layout->addLayout(button_layout);
-            button_layout->addWidget(cmd);
-
-            connect(cmd, SIGNAL(clicked()), this, SLOT(close()));
-        } else {
-            border->setFrameShape(QFrame::WinPanel);
-            border->setFrameShadow(QFrame::Raised);
-            setParent(parentWidget(), Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
-            QTimer::singleShot(7000, this, SLOT(close()));
-            setAttribute(Qt::WA_DeleteOnClose);
-            setAttribute(Qt::WA_QuitOnClose, false);
-        }
-
-        setFixedSize(sizeHint());
-    }
-};
-
-class QGuiFuriCuri : public QCoreFuriCuri
-{
-public:
-    void timerEvent(QTimerEvent *e) {
-        if (e->timerId() == warn) {
-            killTimer(warn);
-            QMessageBox::information(0, QLatin1String("Automatic Timeout"), QLatin1String(will_shutdown_1min));
-            kill = startTimer(KILL_DELAY);
-        } else if (e->timerId() == kill) {
-            killTimer(kill);
-            QMessageBox::information(0, QLatin1String("Automatic Timeout"), QLatin1String(will_shutdown_now));
-            qApp->quit();
-        }
-    }
-};
-
-
-void qt_gui_eval_init(QCoreApplicationPrivate::Type type)
-{
-    Q_UNUSED(type);
-
-    if (!qt_eval_is_supported())
-        return;
-
-    if (qt_eval_is_expired()) {
-        EvalMessageBox box(true);
-        box.exec();
-        ::exit(0);
-    } else {
-        Q_UNUSED(new QGuiFuriCuri());
-    }
-}
-
-static QString qt_eval_title_prefix()
-{
-    return QLatin1String("[Qt Evaluation] ");
-}
-
-QString qt_eval_adapt_window_title(const QString &title)
-{
-    if (!qt_eval_is_supported())
-        return title;
-    return qt_eval_title_prefix() + title;
-}
-
-void qt_eval_init_widget(QWidget *w)
-{
-    if (!qt_eval_is_supported())
-        return;
-    if (w->isTopLevel() && w->windowTitle().isEmpty() && w->windowType() != Qt::Desktop ) {
-        w->setWindowTitle(QLatin1String(" "));
-    }
-}
-#endif
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qtestsupport_core.cpp b/src/corelib/kernel/qtestsupport_core.cpp
index c54b933f94..7bd81ed498 100644
--- a/src/corelib/kernel/qtestsupport_core.cpp
+++ b/src/corelib/kernel/qtestsupport_core.cpp
@@ -102,7 +102,7 @@ Q_CORE_EXPORT void QTest::qWait(int ms)
     int remaining = ms;
     do {
         QCoreApplication::processEvents(QEventLoop::AllEvents, remaining);
-        QCoreApplication::sendPostedEvents(Q_NULLPTR, QEvent::DeferredDelete);
+        QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete);
         remaining = timer.remainingTime();
         if (remaining <= 0)
             break;
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index 13f027074a..188d529f04 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -42,6 +42,8 @@
 #include "qabstracteventdispatcher.h"
 #include "qcoreapplication.h"
 #include "qobject_p.h"
+#include "qthread.h"
+#include "qcoreapplication_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -343,6 +345,33 @@ void QTimer::singleShotImpl(int msec, Qt::TimerType timerType,
                             const QObject *receiver,
                             QtPrivate::QSlotObjectBase *slotObj)
 {
+    if (msec == 0) {
+        bool deleteReceiver = false;
+        // Optimize: set a receiver context when none is given, such that we can use
+        // QMetaObject::invokeMethod which is more efficient than going through a timer.
+        // We need a QObject living in the current thread. But the QThread itself lives
+        // in a different thread - with the exception of the main QThread which lives in
+        // itself. And QThread::currentThread() is among the few QObjects we know that will
+        // most certainly be there. Note that one can actually call singleShot before the
+        // QApplication is created!
+        if (!receiver && QThread::currentThread() == QCoreApplicationPrivate::mainThread()) {
+            // reuse main thread as context object
+            receiver = QThread::currentThread();
+        } else if (!receiver) {
+            // Create a receiver context object on-demand. According to the benchmarks,
+            // this is still more efficient than going through a timer.
+            receiver = new QObject;
+            deleteReceiver = true;
+        }
+
+        QMetaObject::invokeMethodImpl(const_cast<QObject *>(receiver), slotObj,
+                                      Qt::QueuedConnection, nullptr);
+
+        if (deleteReceiver)
+            const_cast<QObject *>(receiver)->deleteLater();
+        return;
+    }
+
     new QSingleShotTimer(msec, timerType, receiver, slotObj);
 }
 
diff --git a/src/corelib/kernel/qtimer.h b/src/corelib/kernel/qtimer.h
index 66f317c567..ae5552f1c9 100644
--- a/src/corelib/kernel/qtimer.h
+++ b/src/corelib/kernel/qtimer.h
@@ -218,7 +218,7 @@ private:
     inline int startTimer(int){ return -1;}
     inline void killTimer(int){}
 
-    static Q_DECL_CONSTEXPR Qt::TimerType defaultTypeFor(int msecs) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR Qt::TimerType defaultTypeFor(int msecs) noexcept
     { return msecs >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer; }
     static void singleShotImpl(int msec, Qt::TimerType timerType,
                                const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj);
diff --git a/src/corelib/kernel/qtimerinfo_unix.cpp b/src/corelib/kernel/qtimerinfo_unix.cpp
index c3b8c86063..39010c19cb 100644
--- a/src/corelib/kernel/qtimerinfo_unix.cpp
+++ b/src/corelib/kernel/qtimerinfo_unix.cpp
@@ -215,7 +215,7 @@ static timespec roundToMillisecond(timespec val)
 QDebug operator<<(QDebug s, timeval tv)
 {
     QDebugStateSaver saver(s);
-    s.nospace() << tv.tv_sec << "." << qSetFieldWidth(6) << qSetPadChar(QChar(48)) << tv.tv_usec << reset;
+    s.nospace() << tv.tv_sec << "." << qSetFieldWidth(6) << qSetPadChar(QChar(48)) << tv.tv_usec << Qt::reset;
     return s;
 }
 QDebug operator<<(QDebug s, Qt::TimerType t)
@@ -373,7 +373,7 @@ static void calculateNextTimeout(QTimerInfo *t, timespec currentTime)
 
 #ifdef QTIMERINFO_DEBUG
     if (t->timerType != Qt::PreciseTimer)
-    qDebug() << "timer" << t->timerType << hex << t->id << dec << "interval" << t->interval
+    qDebug() << "timer" << t->timerType << Qt::hex << t->id << Qt::dec << "interval" << t->interval
             << "originally expected at" << t->expected << "will fire at" << t->timeout
             << "or" << (t->timeout - t->expected) << "s late";
 #endif
@@ -500,7 +500,7 @@ void QTimerInfoList::registerTimer(int timerId, int interval, Qt::TimerType time
     t->cumulativeError = 0;
     t->count = 0;
     if (t->timerType != Qt::PreciseTimer)
-    qDebug() << "timer" << t->timerType << hex <<t->id << dec << "interval" << t->interval << "expected at"
+    qDebug() << "timer" << t->timerType << Qt::hex <<t->id << Qt::dec << "interval" << t->interval << "expected at"
             << t->expected << "will fire first at" << t->timeout;
 #endif
 }
@@ -620,7 +620,7 @@ int QTimerInfoList::activateTimers()
         currentTimerInfo->cumulativeError += diff;
         ++currentTimerInfo->count;
         if (currentTimerInfo->timerType != Qt::PreciseTimer)
-        qDebug() << "timer" << currentTimerInfo->timerType << hex << currentTimerInfo->id << dec << "interval"
+        qDebug() << "timer" << currentTimerInfo->timerType << Qt::hex << currentTimerInfo->id << Qt::dec << "interval"
                 << currentTimerInfo->interval << "firing at" << currentTime
                 << "(orig" << currentTimerInfo->expected << "scheduled at" << currentTimerInfo->timeout
                 << ") off by" << diff << "activation" << currentTimerInfo->count
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 3b7be3d12f..1ac47f3972 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2018 Intel Corporation.
 ** Copyright (C) 2015 Olivier Goffart <ogoffart@woboq.com>
 ** Contact: https://www.qt.io/licensing/
@@ -55,6 +55,7 @@
 #include "qstringlist.h"
 #include "qurl.h"
 #include "qlocale.h"
+#include "qregexp.h"
 #include "quuid.h"
 #if QT_CONFIG(itemmodel)
 #include "qabstractitemmodel.h"
@@ -1462,6 +1463,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
     if (size <= sizeof(QVariant::Private::Data)
             && (type.flags() & (QMetaType::MovableType | QMetaType::IsEnumeration))) {
         type.construct(&d->data.ptr, copy);
+        d->is_null = d->data.ptr == nullptr;
         d->is_shared = false;
     } else {
         // Private::Data contains long long, and long double is the biggest standard type.
@@ -1472,6 +1474,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
         void *data = operator new(offset + size);
         void *ptr = static_cast<char *>(data) + offset;
         type.construct(ptr, copy);
+        d->is_null = ptr == nullptr;
         d->is_shared = true;
         d->data.shared = new (data) QVariant::PrivateShared(ptr);
     }
@@ -4002,8 +4005,8 @@ static int numericCompare(const QVariant::Private *d1, const QVariant::Private *
         return 0;
 
     // only do fuzzy comparisons for finite, non-zero numbers
-    int c1 = std::fpclassify(r1);
-    int c2 = std::fpclassify(r2);
+    int c1 = qFpClassify(r1);
+    int c2 = qFpClassify(r2);
     if ((c1 == FP_NORMAL || c1 == FP_SUBNORMAL) && (c2 == FP_NORMAL || c2 == FP_SUBNORMAL)) {
         if (qFuzzyCompare(r1, r2))
             return 0;
@@ -4280,6 +4283,7 @@ QDebug operator<<(QDebug dbg, const QVariant::Type p)
     \sa fromValue()
 */
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
     \fn template<typename T> QVariant qVariantFromValue(const T &value)
     \relates QVariant
@@ -4317,6 +4321,7 @@ QDebug operator<<(QDebug dbg, const QVariant::Type p)
 
     \sa QVariant::setValue()
 */
+#endif
 
 /*!
     \fn template<typename T> T qvariant_cast(const QVariant &value)
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index 3cc6d559c1..e094ebff52 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -92,9 +92,6 @@ class QUrl;
 class QVariant;
 class QVariantComparisonHelper;
 
-template <typename T>
-inline QVariant qVariantFromValue(const T &);
-
 template<typename T>
 inline T qvariant_cast(const QVariant &);
 
@@ -204,7 +201,7 @@ class Q_CORE_EXPORT QVariant
         LastType = 0xffffffff // need this so that gcc >= 3.4 allocates 32 bits for Type
     };
 
-    QVariant() Q_DECL_NOTHROW : d() {}
+    QVariant() noexcept : d() {}
     ~QVariant();
     QVariant(Type type);
     QVariant(int typeId, const void *copy);
@@ -270,14 +267,12 @@ class Q_CORE_EXPORT QVariant
 #endif
 
     QVariant& operator=(const QVariant &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QVariant(QVariant &&other) Q_DECL_NOTHROW : d(other.d)
+    inline QVariant(QVariant &&other) noexcept : d(other.d)
     { other.d = Private(); }
-    inline QVariant &operator=(QVariant &&other) Q_DECL_NOTHROW
+    inline QVariant &operator=(QVariant &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
 
-    inline void swap(QVariant &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QVariant &other) noexcept { qSwap(d, other.d); }
 
     Type type() const;
     int userType() const;
@@ -365,7 +360,7 @@ class Q_CORE_EXPORT QVariant
 
     template<typename T>
     static inline QVariant fromValue(const T &value)
-    { return qVariantFromValue(value); }
+    { return QVariant(qMetaTypeId<T>(), &value, QTypeInfo<T>::isPointer); }
 
 #if QT_HAS_INCLUDE(<variant>) && __cplusplus >= 201703L
     template<typename... Types>
@@ -390,20 +385,20 @@ class Q_CORE_EXPORT QVariant
     };
     struct Private
     {
-        inline Private() Q_DECL_NOTHROW : type(Invalid), is_shared(false), is_null(true)
+        inline Private() noexcept : type(Invalid), is_shared(false), is_null(true)
         { data.ptr = nullptr; }
 
         // Internal constructor for initialized variants.
-        explicit inline Private(uint variantType) Q_DECL_NOTHROW
+        explicit inline Private(uint variantType) noexcept
             : type(variantType), is_shared(false), is_null(false)
         {}
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
-        Private(const Private &other) Q_DECL_NOTHROW
+        Private(const Private &other) noexcept
             : data(other.data), type(other.type),
               is_shared(other.is_shared), is_null(other.is_null)
         {}
-        Private &operator=(const Private &other) Q_DECL_NOTHROW = default;
+        Private &operator=(const Private &other) noexcept = default;
 #endif
         union Data
         {
@@ -491,27 +486,27 @@ public:
 
 private:
     // force compile error, prevent QVariant(bool) to be called
-    inline QVariant(void *) Q_DECL_EQ_DELETE;
+    inline QVariant(void *) = delete;
     // QVariant::Type is marked as \obsolete, but we don't want to
     // provide a constructor from its intended replacement,
     // QMetaType::Type, instead, because the idea behind these
     // constructors is flawed in the first place. But we also don't
     // want QVariant(QMetaType::String) to compile and falsely be an
     // int variant, so delete this constructor:
-    QVariant(QMetaType::Type) Q_DECL_EQ_DELETE;
+    QVariant(QMetaType::Type) = delete;
 
     // These constructors don't create QVariants of the type associcated
     // with the enum, as expected, but they would create a QVariant of
     // type int with the value of the enum value.
     // Use QVariant v = QColor(Qt::red) instead of QVariant v = Qt::red for
     // example.
-    QVariant(Qt::GlobalColor) Q_DECL_EQ_DELETE;
-    QVariant(Qt::BrushStyle) Q_DECL_EQ_DELETE;
-    QVariant(Qt::PenStyle) Q_DECL_EQ_DELETE;
-    QVariant(Qt::CursorShape) Q_DECL_EQ_DELETE;
+    QVariant(Qt::GlobalColor) = delete;
+    QVariant(Qt::BrushStyle) = delete;
+    QVariant(Qt::PenStyle) = delete;
+    QVariant(Qt::CursorShape) = delete;
 #ifdef QT_NO_CAST_FROM_ASCII
     // force compile error when implicit conversion is not wanted
-    inline QVariant(const char *) Q_DECL_EQ_DELETE;
+    inline QVariant(const char *) = delete;
 #endif
 public:
     typedef Private DataPtr;
@@ -519,50 +514,61 @@ public:
     inline const DataPtr &data_ptr() const { return d; }
 };
 
+#if QT_DEPRECATED_SINCE(5, 14)
 template <typename T>
+QT_DEPRECATED_X("Use QVariant::fromValue() instead.")
 inline QVariant qVariantFromValue(const T &t)
 {
-    return QVariant(qMetaTypeId<T>(), &t, QTypeInfo<T>::isPointer);
+    return QVariant::fromValue(t);
+}
+
+template <typename T>
+QT_DEPRECATED_X("Use QVariant::setValue() instead.")
+inline void qVariantSetValue(QVariant &v, const T &t)
+{
+    v.setValue(t);
 }
+#endif
 
-template <>
-inline QVariant qVariantFromValue(const QVariant &t) { return t; }
+template<>
+inline QVariant QVariant::fromValue(const QVariant &value)
+{
+    return value;
+}
 
 #if QT_HAS_INCLUDE(<variant>) && __cplusplus >= 201703L
-template <>
-inline QVariant qVariantFromValue(const std::monostate &) { return QVariant(); }
+template<>
+inline QVariant QVariant::fromValue(const std::monostate &)
+{
+    return QVariant();
+}
 #endif
 
-template <typename T>
-inline void qVariantSetValue(QVariant &v, const T &t)
+inline bool QVariant::isValid() const { return d.type != Invalid; }
+
+template<typename T>
+inline void QVariant::setValue(const T &avalue)
 {
-    //if possible we reuse the current QVariant private
+    // If possible we reuse the current QVariant private.
     const uint type = qMetaTypeId<T>();
-    QVariant::Private &d = v.data_ptr();
-    if (v.isDetached() && (type == d.type || (type <= uint(QVariant::Char) && d.type <= uint(QVariant::Char)))) {
+    if (isDetached() && (type == d.type || (type <= uint(QVariant::Char) && d.type <= uint(QVariant::Char)))) {
         d.type = type;
         d.is_null = false;
         T *old = reinterpret_cast<T*>(d.is_shared ? d.data.shared->ptr : &d.data.ptr);
         if (QTypeInfo<T>::isComplex)
             old->~T();
-        new (old) T(t); //call the copy constructor
+        new (old) T(avalue); // call the copy constructor
     } else {
-        v = QVariant(type, &t, QTypeInfo<T>::isPointer);
+        *this = QVariant(type, &avalue, QTypeInfo<T>::isPointer);
     }
 }
 
-template <>
-inline void qVariantSetValue<QVariant>(QVariant &v, const QVariant &t)
+template<>
+inline void QVariant::setValue(const QVariant &avalue)
 {
-    v = t;
+    *this = avalue;
 }
 
-inline bool QVariant::isValid() const { return d.type != Invalid; }
-
-template<typename T>
-inline void QVariant::setValue(const T &avalue)
-{ qVariantSetValue(*this, avalue); }
-
 #ifndef QT_NO_DATASTREAM
 Q_CORE_EXPORT QDataStream& operator>> (QDataStream& s, QVariant& p);
 Q_CORE_EXPORT QDataStream& operator<< (QDataStream& s, const QVariant& p);
diff --git a/src/corelib/kernel/qvariant_p.h b/src/corelib/kernel/qvariant_p.h
index b22b7c231e..3d87beac83 100644
--- a/src/corelib/kernel/qvariant_p.h
+++ b/src/corelib/kernel/qvariant_p.h
@@ -88,7 +88,7 @@ inline T *v_cast(const QVariant::Private *nd, T * = 0)
 #else // every other compiler in this world
 
 template <typename T>
-inline const T *v_cast(const QVariant::Private *d, T * = 0)
+inline const T *v_cast(const QVariant::Private *d, T * = nullptr)
 {
     return !QVariantIntegrator<T>::CanUseInternalSpace
             ? static_cast<const T *>(d->data.shared->ptr)
@@ -96,7 +96,7 @@ inline const T *v_cast(const QVariant::Private *d, T * = 0)
 }
 
 template <typename T>
-inline T *v_cast(QVariant::Private *d, T * = 0)
+inline T *v_cast(QVariant::Private *d, T * = nullptr)
 {
     return !QVariantIntegrator<T>::CanUseInternalSpace
             ? static_cast<T *>(d->data.shared->ptr)
@@ -154,7 +154,7 @@ inline void v_construct(QVariant::Private *x, const T &t)
 
 // constructs a new variant if copy is 0, otherwise copy-constructs
 template <class T>
-inline void v_construct(QVariant::Private *x, const void *copy, T * = 0)
+inline void v_construct(QVariant::Private *x, const void *copy, T * = nullptr)
 {
     if (copy)
         v_construct<T>(x, *static_cast<const T *>(copy));
@@ -164,7 +164,7 @@ inline void v_construct(QVariant::Private *x, const void *copy, T * = 0)
 
 // deletes the internal structures
 template <class T>
-inline void v_clear(QVariant::Private *d, T* = 0)
+inline void v_clear(QVariant::Private *d, T* = nullptr)
 {
 
     if (!QVariantIntegrator<T>::CanUseInternalSpace) {
@@ -264,7 +264,7 @@ class QVariantIsNull
         struct No { char unused[2]; };
         Q_STATIC_ASSERT(sizeof(Yes) != sizeof(No));
 
-        template<class C> static decltype(static_cast<const C*>(0)->isNull(), Yes()) test(int);
+        template<class C> static decltype(static_cast<const C*>(nullptr)->isNull(), Yes()) test(int);
         template<class C> static No test(...);
     public:
         static const bool Value = (sizeof(test<T>(0)) == sizeof(Yes));
diff --git a/src/corelib/mimetypes/qmimeglobpattern_p.h b/src/corelib/mimetypes/qmimeglobpattern_p.h
index bb6f64320b..cf27d6ab30 100644
--- a/src/corelib/mimetypes/qmimeglobpattern_p.h
+++ b/src/corelib/mimetypes/qmimeglobpattern_p.h
@@ -88,7 +88,7 @@ public:
     {
     }
 
-    void swap(QMimeGlobPattern &other) Q_DECL_NOTHROW
+    void swap(QMimeGlobPattern &other) noexcept
     {
         qSwap(m_pattern,         other.m_pattern);
         qSwap(m_mimeType,        other.m_mimeType);
diff --git a/src/corelib/mimetypes/qmimemagicrule_p.h b/src/corelib/mimetypes/qmimemagicrule_p.h
index 6962a6ca59..5091d483b6 100644
--- a/src/corelib/mimetypes/qmimemagicrule_p.h
+++ b/src/corelib/mimetypes/qmimemagicrule_p.h
@@ -69,7 +69,7 @@ public:
     QMimeMagicRule(const QString &typeStr, const QByteArray &value, const QString &offsets,
                    const QByteArray &mask, QString *errorString);
 
-    void swap(QMimeMagicRule &other) Q_DECL_NOTHROW
+    void swap(QMimeMagicRule &other) noexcept
     {
         qSwap(m_type,          other.m_type);
         qSwap(m_value,         other.m_value);
diff --git a/src/corelib/mimetypes/qmimemagicrulematcher_p.h b/src/corelib/mimetypes/qmimemagicrulematcher_p.h
index 5e74e2e3fc..fe714987e6 100644
--- a/src/corelib/mimetypes/qmimemagicrulematcher_p.h
+++ b/src/corelib/mimetypes/qmimemagicrulematcher_p.h
@@ -66,7 +66,7 @@ class QMimeMagicRuleMatcher
 public:
     explicit QMimeMagicRuleMatcher(const QString &mime, unsigned priority = 65535);
 
-    void swap(QMimeMagicRuleMatcher &other) Q_DECL_NOTHROW
+    void swap(QMimeMagicRuleMatcher &other) noexcept
     {
         qSwap(m_list,     other.m_list);
         qSwap(m_priority, other.m_priority);
diff --git a/src/corelib/mimetypes/qmimeprovider.cpp b/src/corelib/mimetypes/qmimeprovider.cpp
index 37c8e3b157..7e2696b719 100644
--- a/src/corelib/mimetypes/qmimeprovider.cpp
+++ b/src/corelib/mimetypes/qmimeprovider.cpp
@@ -460,6 +460,7 @@ void QMimeBinaryProvider::addAllMimeTypes(QList<QMimeType> &result)
 void QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate &data)
 {
 #ifdef QT_NO_XMLSTREAMREADER
+    Q_UNUSED(data);
     qWarning("Cannot load mime type since QXmlStreamReader is not available.");
     return;
 #else
diff --git a/src/corelib/mimetypes/qmimetype.cpp b/src/corelib/mimetypes/qmimetype.cpp
index 55c7de0c87..cf01c9503b 100644
--- a/src/corelib/mimetypes/qmimetype.cpp
+++ b/src/corelib/mimetypes/qmimetype.cpp
@@ -192,7 +192,7 @@ bool QMimeType::operator==(const QMimeType &other) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
  */
-uint qHash(const QMimeType &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QMimeType &key, uint seed) noexcept
 {
     return qHash(key.d->name, seed);
 }
diff --git a/src/corelib/mimetypes/qmimetype.h b/src/corelib/mimetypes/qmimetype.h
index 8287f1434b..6d6f9eb488 100644
--- a/src/corelib/mimetypes/qmimetype.h
+++ b/src/corelib/mimetypes/qmimetype.h
@@ -55,7 +55,7 @@ class QMimeTypePrivate;
 class QStringList;
 class QMimeType;
 
-Q_CORE_EXPORT uint qHash(const QMimeType &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QMimeType &key, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QMimeType
 {
@@ -78,10 +78,8 @@ public:
     QMimeType();
     QMimeType(const QMimeType &other);
     QMimeType &operator=(const QMimeType &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QMimeType &operator=(QMimeType &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
-    void swap(QMimeType &other) Q_DECL_NOTHROW
+    QMimeType &operator=(QMimeType &&other) noexcept { swap(other); return *this; }
+    void swap(QMimeType &other) noexcept
     {
         qSwap(d, other.d);
     }
@@ -121,7 +119,7 @@ protected:
     friend class QMimeXMLProvider;
     friend class QMimeBinaryProvider;
     friend class QMimeTypePrivate;
-    friend Q_CORE_EXPORT uint qHash(const QMimeType &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QMimeType &key, uint seed) noexcept;
 
     QExplicitlySharedDataPointer<QMimeTypePrivate> d;
 };
diff --git a/src/corelib/mimetypes/qmimetype_p.h b/src/corelib/mimetypes/qmimetype_p.h
index 5a36e6613c..0d6b4b4b12 100644
--- a/src/corelib/mimetypes/qmimetype_p.h
+++ b/src/corelib/mimetypes/qmimetype_p.h
@@ -84,26 +84,6 @@ public:
 
 QT_END_NAMESPACE
 
-#define QMIMETYPE_BUILDER \
-    QT_BEGIN_NAMESPACE \
-    static QMimeType buildQMimeType ( \
-                         const QString &name, \
-                         const QString &genericIconName, \
-                         const QString &iconName, \
-                         const QStringList &globPatterns \
-                     ) \
-    { \
-        QMimeTypePrivate qMimeTypeData; \
-        qMimeTypeData.name = name; \
-        qMimeTypeData.loaded = true; \
-        qMimeTypeData.genericIconName = genericIconName; \
-        qMimeTypeData.iconName = iconName; \
-        qMimeTypeData.globPatterns = globPatterns; \
-        return QMimeType(qMimeTypeData); \
-    } \
-    QT_END_NAMESPACE
-
-#ifdef Q_COMPILER_RVALUE_REFS
 #define QMIMETYPE_BUILDER_FROM_RVALUE_REFS \
     QT_BEGIN_NAMESPACE \
     static QMimeType buildQMimeType ( \
@@ -122,6 +102,5 @@ QT_END_NAMESPACE
         return QMimeType(qMimeTypeData); \
     } \
     QT_END_NAMESPACE
-#endif
 
 #endif   // QMIMETYPE_P_H
diff --git a/src/corelib/mimetypes/qmimetypeparser.cpp b/src/corelib/mimetypes/qmimetypeparser.cpp
index d10575cfe9..815e0aa03b 100644
--- a/src/corelib/mimetypes/qmimetypeparser.cpp
+++ b/src/corelib/mimetypes/qmimetypeparser.cpp
@@ -194,8 +194,9 @@ static CreateMagicMatchRuleResult createMagicMatchRule(const QXmlStreamAttribute
 bool QMimeTypeParserBase::parse(QIODevice *dev, const QString &fileName, QString *errorMessage)
 {
 #ifdef QT_NO_XMLSTREAMREADER
+    Q_UNUSED(dev);
     if (errorMessage)
-        *errorMessage = QString::fromLatin1("QXmlStreamReader is not available, cannot parse.");
+        *errorMessage = QString::fromLatin1("QXmlStreamReader is not available, cannot parse '%1'.").arg(fileName);
     return false;
 #else
     QMimeTypePrivate data;
diff --git a/src/corelib/plugin/qfactoryloader.cpp b/src/corelib/plugin/qfactoryloader.cpp
index 35c64180d4..8e349f23ce 100644
--- a/src/corelib/plugin/qfactoryloader.cpp
+++ b/src/corelib/plugin/qfactoryloader.cpp
@@ -239,7 +239,7 @@ void QFactoryLoader::update()
             library = QLibraryPrivate::findOrCreate(QFileInfo(fileName).canonicalFilePath());
             if (!library->isPlugin()) {
                 if (qt_debug_component()) {
-                    qDebug() << library->errorString << endl
+                    qDebug() << library->errorString << Qt::endl
                              << "         not a plugin";
                 }
                 library->release();
diff --git a/src/corelib/plugin/qlibrary_p.h b/src/corelib/plugin/qlibrary_p.h
index 3f650501c8..1a216c98b5 100644
--- a/src/corelib/plugin/qlibrary_p.h
+++ b/src/corelib/plugin/qlibrary_p.h
@@ -96,7 +96,7 @@ public:
     void setLoadHints(QLibrary::LoadHints lh);
 
     static QLibraryPrivate *findOrCreate(const QString &fileName, const QString &version = QString(),
-                                         QLibrary::LoadHints loadHints = 0);
+                                         QLibrary::LoadHints loadHints = nullptr);
     static QStringList suffixes_sys(const QString &fullVersion);
     static QStringList prefixes_sys();
 
diff --git a/src/corelib/plugin/qplugin.h b/src/corelib/plugin/qplugin.h
index 676b5047d6..c176155c28 100644
--- a/src/corelib/plugin/qplugin.h
+++ b/src/corelib/plugin/qplugin.h
@@ -75,7 +75,12 @@ typedef QObject *(*QtPluginInstanceFunction)();
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 typedef const char *(*QtPluginMetaDataFunction)();
 #else
-typedef QPair<const uchar *, size_t> (*QtPluginMetaDataFunction)();
+struct QPluginMetaData
+{
+    const uchar *data;
+    size_t size;
+};
+typedef QPluginMetaData (*QtPluginMetaDataFunction)();
 #endif
 
 
@@ -84,12 +89,14 @@ struct Q_CORE_EXPORT QStaticPlugin
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 public:
     constexpr QStaticPlugin(QtPluginInstanceFunction i, QtPluginMetaDataFunction m)
-        : instance(i), rawMetaData(m().first), rawMetaDataSize(m().second)
+        : instance(i), rawMetaData(m().data), rawMetaDataSize(m().size)
+    {}
     QtPluginInstanceFunction instance;
 private:
     // ### Qt 6: revise, as this is not standard-layout
     const void *rawMetaData;
-    qsizetype rawMetaDataSize
+    qsizetype rawMetaDataSize;
+public:
 #elif !defined(Q_QDOC)
     // Note: This struct is initialized using an initializer list.
     // As such, it cannot have any new constructors or variables.
@@ -154,6 +161,16 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 
 #if defined(QT_STATICPLUGIN)
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+#  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME) \
+    static QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGINCLASSNAME() \
+    Q_PLUGIN_INSTANCE(PLUGINCLASS) \
+    static QPluginMetaData qt_plugin_query_metadata_##PLUGINCLASSNAME() \
+        { return { qt_pluginMetaData, sizeof qt_pluginMetaData }; } \
+    const QT_PREPEND_NAMESPACE(QStaticPlugin) qt_static_plugin_##PLUGINCLASSNAME() { \
+        return { qt_plugin_instance_##PLUGINCLASSNAME, qt_plugin_query_metadata_##PLUGINCLASSNAME}; \
+    }
+#else
 #  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME) \
     static QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGINCLASSNAME() \
     Q_PLUGIN_INSTANCE(PLUGINCLASS) \
@@ -162,13 +179,15 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
         QT_PREPEND_NAMESPACE(QStaticPlugin) plugin = { qt_plugin_instance_##PLUGINCLASSNAME, qt_plugin_query_metadata_##PLUGINCLASSNAME}; \
         return plugin; \
     }
+#endif
 
-#elif QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+#else
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 
 #  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME)      \
             Q_EXTERN_C Q_DECL_EXPORT \
-            auto qt_plugin_query_metadata() \
-            { return qMakePair<const void *, size_t>(qt_pluginMetaData, sizeof qt_pluginMetaData); } \
+            QPluginMetaData qt_plugin_query_metadata() \
+            { return { qt_pluginMetaData, sizeof qt_pluginMetaData }; } \
             Q_EXTERN_C Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance() \
             Q_PLUGIN_INSTANCE(PLUGINCLASS)
 
@@ -183,6 +202,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 
 #endif
 
+#endif
 
 #define Q_EXPORT_PLUGIN(PLUGIN) \
             Q_EXPORT_PLUGIN2(PLUGIN, PLUGIN)
diff --git a/src/corelib/plugin/qplugin_p.h b/src/corelib/plugin/qplugin_p.h
index 717129268b..ce45ebf700 100644
--- a/src/corelib/plugin/qplugin_p.h
+++ b/src/corelib/plugin/qplugin_p.h
@@ -60,7 +60,8 @@ enum class QtPluginMetaDataKeys {
     Requirements,
     IID,
     ClassName,
-    MetaData
+    MetaData,
+    URI
 };
 
 // F(IntKey, StringKey, Description)
@@ -68,7 +69,8 @@ enum class QtPluginMetaDataKeys {
 #define QT_PLUGIN_FOREACH_METADATA(F) \
     F(QtPluginMetaDataKeys::IID, "IID", "Plugin's Interface ID")                \
     F(QtPluginMetaDataKeys::ClassName, "className", "Plugin class name")        \
-    F(QtPluginMetaDataKeys::MetaData, "MetaData", "Other meta data")
+    F(QtPluginMetaDataKeys::MetaData, "MetaData", "Other meta data")            \
+    F(QtPluginMetaDataKeys::URI, "URI", "Plugin URI")
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/plugin/quuid.cpp b/src/corelib/plugin/quuid.cpp
index 8bb5e1463a..83873edf6f 100644
--- a/src/corelib/plugin/quuid.cpp
+++ b/src/corelib/plugin/quuid.cpp
@@ -397,7 +397,7 @@ QUuid::QUuid(const QString &text)
 
     \sa toString(), QUuid()
 */
-QUuid QUuid::fromString(QStringView text) Q_DECL_NOTHROW
+QUuid QUuid::fromString(QStringView text) noexcept
 {
     if (text.size() > MaxStringUuidLength)
         text = text.left(MaxStringUuidLength); // text.truncate(MaxStringUuidLength);
@@ -427,7 +427,7 @@ QUuid QUuid::fromString(QStringView text) Q_DECL_NOTHROW
 
     \sa toString(), QUuid()
 */
-QUuid QUuid::fromString(QLatin1String text) Q_DECL_NOTHROW
+QUuid QUuid::fromString(QLatin1String text) noexcept
 {
     if (Q_UNLIKELY(text.size() < MaxStringUuidLength - 2
                    || (text.front() == QLatin1Char('{') && text.size() < MaxStringUuidLength - 1))) {
@@ -864,7 +864,7 @@ QDataStream &operator>>(QDataStream &s, QUuid &id)
     Returns \c true if this is the null UUID
     {00000000-0000-0000-0000-000000000000}; otherwise returns \c false.
 */
-bool QUuid::isNull() const Q_DECL_NOTHROW
+bool QUuid::isNull() const noexcept
 {
     return data4[0] == 0 && data4[1] == 0 && data4[2] == 0 && data4[3] == 0 &&
            data4[4] == 0 && data4[5] == 0 && data4[6] == 0 && data4[7] == 0 &&
@@ -913,7 +913,7 @@ bool QUuid::isNull() const Q_DECL_NOTHROW
 
     \sa version()
 */
-QUuid::Variant QUuid::variant() const Q_DECL_NOTHROW
+QUuid::Variant QUuid::variant() const noexcept
 {
     if (isNull())
         return VarUnknown;
@@ -934,7 +934,7 @@ QUuid::Variant QUuid::variant() const Q_DECL_NOTHROW
 
     \sa variant()
 */
-QUuid::Version QUuid::version() const Q_DECL_NOTHROW
+QUuid::Version QUuid::version() const noexcept
 {
     // Check the 4 MSB of data3
     Version ver = (Version)(data3>>12);
@@ -957,7 +957,7 @@ QUuid::Version QUuid::version() const Q_DECL_NOTHROW
 
     \sa variant()
 */
-bool QUuid::operator<(const QUuid &other) const Q_DECL_NOTHROW
+bool QUuid::operator<(const QUuid &other) const noexcept
 {
     if (variant() != other.variant())
         return variant() < other.variant();
@@ -984,7 +984,7 @@ bool QUuid::operator<(const QUuid &other) const Q_DECL_NOTHROW
 
     \sa variant()
 */
-bool QUuid::operator>(const QUuid &other) const Q_DECL_NOTHROW
+bool QUuid::operator>(const QUuid &other) const noexcept
 {
     return other < *this;
 }
@@ -1089,7 +1089,7 @@ QDebug operator<<(QDebug dbg, const QUuid &id)
     \relates QUuid
     Returns a hash of the UUID \a uuid, using \a seed to seed the calculation.
 */
-uint qHash(const QUuid &uuid, uint seed) Q_DECL_NOTHROW
+uint qHash(const QUuid &uuid, uint seed) noexcept
 {
     return uuid.data1 ^ uuid.data2 ^ (uuid.data3 << 16)
             ^ ((uuid.data4[0] << 24) | (uuid.data4[1] << 16) | (uuid.data4[2] << 8) | uuid.data4[3])
diff --git a/src/corelib/plugin/quuid.h b/src/corelib/plugin/quuid.h
index 08a1843640..713ca070c8 100644
--- a/src/corelib/plugin/quuid.h
+++ b/src/corelib/plugin/quuid.h
@@ -93,13 +93,13 @@ public:
 
 #if defined(Q_COMPILER_UNIFORM_INIT) && !defined(Q_CLANG_QDOC)
 
-    Q_DECL_CONSTEXPR QUuid() Q_DECL_NOTHROW : data1(0), data2(0), data3(0), data4{0,0,0,0,0,0,0,0} {}
+    Q_DECL_CONSTEXPR QUuid() noexcept : data1(0), data2(0), data3(0), data4{0,0,0,0,0,0,0,0} {}
 
     Q_DECL_CONSTEXPR QUuid(uint l, ushort w1, ushort w2, uchar b1, uchar b2, uchar b3,
-                           uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) Q_DECL_NOTHROW
+                           uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) noexcept
         : data1(l), data2(w1), data3(w2), data4{b1, b2, b3, b4, b5, b6, b7, b8} {}
 #else
-    QUuid() Q_DECL_NOTHROW
+    QUuid() noexcept
     {
         data1 = 0;
         data2 = 0;
@@ -107,7 +107,7 @@ public:
         for(int i = 0; i < 8; i++)
             data4[i] = 0;
     }
-    QUuid(uint l, ushort w1, ushort w2, uchar b1, uchar b2, uchar b3, uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) Q_DECL_NOTHROW
+    QUuid(uint l, ushort w1, ushort w2, uchar b1, uchar b2, uchar b3, uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) noexcept
     {
         data1 = l;
         data2 = w1;
@@ -124,8 +124,8 @@ public:
 #endif
 
     QUuid(const QString &);
-    static QUuid fromString(QStringView string) Q_DECL_NOTHROW;
-    static QUuid fromString(QLatin1String string) Q_DECL_NOTHROW;
+    static QUuid fromString(QStringView string) noexcept;
+    static QUuid fromString(QLatin1String string) noexcept;
     QUuid(const char *);
     QString toString() const;
     QString toString(StringFormat mode) const; // ### Qt6: merge with previous
@@ -134,9 +134,9 @@ public:
     QByteArray toByteArray(StringFormat mode) const; // ### Qt6: merge with previous
     QByteArray toRfc4122() const;
     static QUuid fromRfc4122(const QByteArray &);
-    bool isNull() const Q_DECL_NOTHROW;
+    bool isNull() const noexcept;
 
-    Q_DECL_RELAXED_CONSTEXPR bool operator==(const QUuid &orig) const Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR bool operator==(const QUuid &orig) const noexcept
     {
         if (data1 != orig.data1 || data2 != orig.data2 ||
              data3 != orig.data3)
@@ -149,24 +149,24 @@ public:
         return true;
     }
 
-    Q_DECL_RELAXED_CONSTEXPR bool operator!=(const QUuid &orig) const Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR bool operator!=(const QUuid &orig) const noexcept
     {
         return !(*this == orig);
     }
 
-    bool operator<(const QUuid &other) const Q_DECL_NOTHROW;
-    bool operator>(const QUuid &other) const Q_DECL_NOTHROW;
+    bool operator<(const QUuid &other) const noexcept;
+    bool operator>(const QUuid &other) const noexcept;
 
 #if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
     // On Windows we have a type GUID that is used by the platform API, so we
     // provide convenience operators to cast from and to this type.
 #if defined(Q_COMPILER_UNIFORM_INIT) && !defined(Q_CLANG_QDOC)
-    Q_DECL_CONSTEXPR QUuid(const GUID &guid) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QUuid(const GUID &guid) noexcept
         : data1(guid.Data1), data2(guid.Data2), data3(guid.Data3),
           data4{guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
                 guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]} {}
 #else
-    QUuid(const GUID &guid) Q_DECL_NOTHROW
+    QUuid(const GUID &guid) noexcept
     {
         data1 = guid.Data1;
         data2 = guid.Data2;
@@ -176,24 +176,24 @@ public:
     }
 #endif
 
-    Q_DECL_RELAXED_CONSTEXPR QUuid &operator=(const GUID &guid) Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR QUuid &operator=(const GUID &guid) noexcept
     {
         *this = QUuid(guid);
         return *this;
     }
 
-    Q_DECL_RELAXED_CONSTEXPR operator GUID() const Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR operator GUID() const noexcept
     {
         GUID guid = { data1, data2, data3, { data4[0], data4[1], data4[2], data4[3], data4[4], data4[5], data4[6], data4[7] } };
         return guid;
     }
 
-    Q_DECL_RELAXED_CONSTEXPR bool operator==(const GUID &guid) const Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR bool operator==(const GUID &guid) const noexcept
     {
         return *this == QUuid(guid);
     }
 
-    Q_DECL_RELAXED_CONSTEXPR bool operator!=(const GUID &guid) const Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR bool operator!=(const GUID &guid) const noexcept
     {
         return !(*this == guid);
     }
@@ -216,8 +216,8 @@ public:
     }
 
 
-    QUuid::Variant variant() const Q_DECL_NOTHROW;
-    QUuid::Version version() const Q_DECL_NOTHROW;
+    QUuid::Variant variant() const noexcept;
+    QUuid::Version version() const noexcept;
 
 #if defined(Q_OS_DARWIN) || defined(Q_CLANG_QDOC)
     static QUuid fromCFUUID(CFUUIDRef uuid);
@@ -243,11 +243,11 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QUuid &);
 Q_CORE_EXPORT QDebug operator<<(QDebug, const QUuid &);
 #endif
 
-Q_CORE_EXPORT uint qHash(const QUuid &uuid, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QUuid &uuid, uint seed = 0) noexcept;
 
-inline bool operator<=(const QUuid &lhs, const QUuid &rhs) Q_DECL_NOTHROW
+inline bool operator<=(const QUuid &lhs, const QUuid &rhs) noexcept
 { return !(rhs < lhs); }
-inline bool operator>=(const QUuid &lhs, const QUuid &rhs) Q_DECL_NOTHROW
+inline bool operator>=(const QUuid &lhs, const QUuid &rhs) noexcept
 { return !(lhs < rhs); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/serialization/qcborvalue.cpp b/src/corelib/serialization/qcborvalue.cpp
index 288446878c..b2e0ba6d53 100644
--- a/src/corelib/serialization/qcborvalue.cpp
+++ b/src/corelib/serialization/qcborvalue.cpp
@@ -766,8 +766,8 @@ static void writeDoubleToCbor(QCborStreamWriter &writer, double d, QCborValue::E
     if (qt_is_nan(d)) {
         if (opt & QCborValue::UseFloat16) {
             if ((opt & QCborValue::UseFloat16) == QCborValue::UseFloat16)
-                return writer.append(qfloat16(qt_qnan()));
-            return writer.append(float(qt_qnan()));
+                return writer.append(std::numeric_limits<qfloat16>::quiet_NaN());
+            return writer.append(std::numeric_limits<float>::quiet_NaN());
         }
         return writer.append(qt_qnan());
     }
@@ -2941,7 +2941,7 @@ static QDebug debugContents(QDebug &dbg, const QCborValue &v)
     }
     if (v.isSimpleType())
         return dbg << v.toSimpleType();
-    return dbg << "<unknown type " << hex << int(v.type()) << dec << '>';
+    return dbg << "<unknown type " << Qt::hex << int(v.type()) << Qt::dec << '>';
 }
 QDebug operator<<(QDebug dbg, const QCborValue &v)
 {
diff --git a/src/corelib/serialization/qdatastream.cpp b/src/corelib/serialization/qdatastream.cpp
index 02c1d1c573..2c29b81f7c 100644
--- a/src/corelib/serialization/qdatastream.cpp
+++ b/src/corelib/serialization/qdatastream.cpp
@@ -98,6 +98,10 @@ QT_BEGIN_NAMESPACE
     ensures that you get integers of the size you want and insulates
     you from compiler and platform differences.
 
+    Enumerations can be serialized through QDataStream without the
+    need of manually defining streaming operators. Enum classes are
+    serialized using the declared size.
+
     To take one example, a \c{char *} string is written as a 32-bit
     integer equal to the length of the string including the '\\0' byte,
     followed by all the characters of the string including the
@@ -561,6 +565,7 @@ void QDataStream::setByteOrder(ByteOrder bo)
     \value Qt_5_11 Same as Qt_5_6
     \value Qt_5_12 Version 18 (Qt 5.12)
     \value Qt_5_13 Version 19 (Qt 5.13)
+    \value Qt_5_14 Same as Qt_5_13
     \omitvalue Qt_DefaultCompiledVersion
 
     \sa setVersion(), version()
diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index 81134f74b0..60d429d707 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -100,10 +100,19 @@ public:
         Qt_5_11 = Qt_5_10,
         Qt_5_12 = 18,
         Qt_5_13 = 19,
-#if QT_VERSION >= 0x050e00
+        Qt_5_14 = Qt_5_13,
+#if QT_VERSION >= 0x050f00
+        Qt_5_15 = Qt_5_14,
+        Qt_DefaultCompiledVersion = Qt_5_15
+#elif QT_VERSION >= 0x060000
+        Qt_6_0 = Qt_5_15,
+        Qt_DefaultCompiledVersion = Qt_6_0
+#else
+        Qt_DefaultCompiledVersion = Qt_5_14
+#endif
+#if QT_VERSION >= 0x060100
 #error Add the datastream version for this Qt version and update Qt_DefaultCompiledVersion
 #endif
-        Qt_DefaultCompiledVersion = Qt_5_13
     };
 
     enum ByteOrder {
@@ -377,6 +386,16 @@ inline QDataStream &operator>>(QDataStream &s, QFlags<Enum> &e)
 { return s >> e.i; }
 
 template <typename T>
+typename std::enable_if<std::is_enum<T>::value, QDataStream &>::type&
+operator<<(QDataStream &s, const T &t)
+{ return s << static_cast<typename std::underlying_type<T>::type>(t); }
+
+template <typename T>
+typename std::enable_if<std::is_enum<T>::value, QDataStream &>::type&
+operator>>(QDataStream &s, T &t)
+{ return s >> reinterpret_cast<typename std::underlying_type<T>::type &>(t); }
+
+template <typename T>
 inline QDataStream &operator>>(QDataStream &s, QList<T> &l)
 {
     return QtPrivate::readArrayBasedContainer(s, l);
diff --git a/src/corelib/serialization/qjson_p.h b/src/corelib/serialization/qjson_p.h
index 40b2414e4a..85fb2a1254 100644
--- a/src/corelib/serialization/qjson_p.h
+++ b/src/corelib/serialization/qjson_p.h
@@ -304,7 +304,7 @@ public:
         return *this;
     }
 
-    QLatin1String toQLatin1String() const Q_DECL_NOTHROW {
+    QLatin1String toQLatin1String() const noexcept {
         return QLatin1String(d->latin1, d->length);
     }
 
@@ -339,23 +339,23 @@ public:
 };
 
 #define DEF_OP(op) \
-    inline bool operator op(Latin1String lhs, Latin1String rhs) Q_DECL_NOTHROW \
+    inline bool operator op(Latin1String lhs, Latin1String rhs) noexcept \
     { \
         return lhs.toQLatin1String() op rhs.toQLatin1String(); \
     } \
-    inline bool operator op(QLatin1String lhs, Latin1String rhs) Q_DECL_NOTHROW \
+    inline bool operator op(QLatin1String lhs, Latin1String rhs) noexcept \
     { \
         return lhs op rhs.toQLatin1String(); \
     } \
-    inline bool operator op(Latin1String lhs, QLatin1String rhs) Q_DECL_NOTHROW \
+    inline bool operator op(Latin1String lhs, QLatin1String rhs) noexcept \
     { \
         return lhs.toQLatin1String() op rhs; \
     } \
-    inline bool operator op(const QString &lhs, Latin1String rhs) Q_DECL_NOTHROW \
+    inline bool operator op(const QString &lhs, Latin1String rhs) noexcept \
     { \
         return lhs op rhs.toQLatin1String(); \
     } \
-    inline bool operator op(Latin1String lhs, const QString &rhs) Q_DECL_NOTHROW \
+    inline bool operator op(Latin1String lhs, const QString &rhs) noexcept \
     { \
         return lhs.toQLatin1String() op rhs; \
     } \
@@ -686,7 +686,7 @@ public:
     {
     }
     inline Data(int reserved, QJsonValue::Type valueType)
-        : rawData(0), compactionCounter(0), ownsData(true)
+        : rawData(nullptr), compactionCounter(0), ownsData(true)
     {
         Q_ASSERT(valueType == QJsonValue::Array || valueType == QJsonValue::Object);
 
@@ -728,7 +728,7 @@ public:
             size = qMax(size + reserve, qMin(size *2, (int)Value::MaxSize));
             if (size > Value::MaxSize) {
                 qWarning("QJson: Document too large to store in data structure");
-                return 0;
+                return nullptr;
             }
         }
         char *raw = (char *)malloc(size);
diff --git a/src/corelib/serialization/qjsonarray.h b/src/corelib/serialization/qjsonarray.h
index ba346fb848..983a6753b5 100644
--- a/src/corelib/serialization/qjsonarray.h
+++ b/src/corelib/serialization/qjsonarray.h
@@ -42,9 +42,7 @@
 
 #include <QtCore/qjsonvalue.h>
 #include <QtCore/qiterator.h>
-#if defined(Q_COMPILER_INITIALIZER_LISTS)
 #include <initializer_list>
-#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -58,21 +56,19 @@ class Q_CORE_EXPORT QJsonArray
 public:
     QJsonArray();
 
-#if defined(Q_COMPILER_INITIALIZER_LISTS) || defined(Q_QDOC)
     QJsonArray(std::initializer_list<QJsonValue> args)
     {
         initialize();
         for (std::initializer_list<QJsonValue>::const_iterator i = args.begin(); i != args.end(); ++i)
             append(*i);
     }
-#endif
 
     ~QJsonArray();
 
     QJsonArray(const QJsonArray &other);
     QJsonArray &operator =(const QJsonArray &other);
 
-    QJsonArray(QJsonArray &&other) Q_DECL_NOTHROW
+    QJsonArray(QJsonArray &&other) noexcept
         : d(other.d),
           a(other.a)
     {
@@ -80,7 +76,7 @@ public:
         other.a = nullptr;
     }
 
-    QJsonArray &operator =(QJsonArray &&other) Q_DECL_NOTHROW
+    QJsonArray &operator =(QJsonArray &&other) noexcept
     {
         swap(other);
         return *this;
@@ -115,7 +111,7 @@ public:
     bool operator==(const QJsonArray &other) const;
     bool operator!=(const QJsonArray &other) const;
 
-    void swap(QJsonArray &other) Q_DECL_NOTHROW
+    void swap(QJsonArray &other) noexcept
     {
         qSwap(d, other.d);
         qSwap(a, other.a);
diff --git a/src/corelib/serialization/qjsondocument.h b/src/corelib/serialization/qjsondocument.h
index a749439b7d..a8006a6cc5 100644
--- a/src/corelib/serialization/qjsondocument.h
+++ b/src/corelib/serialization/qjsondocument.h
@@ -93,19 +93,19 @@ public:
     QJsonDocument(const QJsonDocument &other);
     QJsonDocument &operator =(const QJsonDocument &other);
 
-    QJsonDocument(QJsonDocument &&other) Q_DECL_NOTHROW
+    QJsonDocument(QJsonDocument &&other) noexcept
         : d(other.d)
     {
         other.d = nullptr;
     }
 
-    QJsonDocument &operator =(QJsonDocument &&other) Q_DECL_NOTHROW
+    QJsonDocument &operator =(QJsonDocument &&other) noexcept
     {
         swap(other);
         return *this;
     }
 
-    void swap(QJsonDocument &other) Q_DECL_NOTHROW
+    void swap(QJsonDocument &other) noexcept
     {
         qSwap(d, other.d);
     }
diff --git a/src/corelib/serialization/qjsonobject.h b/src/corelib/serialization/qjsonobject.h
index 80fe6b2f3f..d8e2ab9ca7 100644
--- a/src/corelib/serialization/qjsonobject.h
+++ b/src/corelib/serialization/qjsonobject.h
@@ -42,10 +42,8 @@
 
 #include <QtCore/qjsonvalue.h>
 #include <QtCore/qiterator.h>
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 #include <QtCore/qpair.h>
 #include <initializer_list>
-#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -60,34 +58,32 @@ class Q_CORE_EXPORT QJsonObject
 public:
     QJsonObject();
 
-#if defined(Q_COMPILER_INITIALIZER_LISTS) || defined(Q_QDOC)
     QJsonObject(std::initializer_list<QPair<QString, QJsonValue> > args)
     {
         initialize();
         for (std::initializer_list<QPair<QString, QJsonValue> >::const_iterator i = args.begin(); i != args.end(); ++i)
             insert(i->first, i->second);
     }
-#endif
 
     ~QJsonObject();
 
     QJsonObject(const QJsonObject &other);
     QJsonObject &operator =(const QJsonObject &other);
 
-    QJsonObject(QJsonObject &&other) Q_DECL_NOTHROW
+    QJsonObject(QJsonObject &&other) noexcept
         : d(other.d), o(other.o)
     {
         other.d = nullptr;
         other.o = nullptr;
     }
 
-    QJsonObject &operator =(QJsonObject &&other) Q_DECL_NOTHROW
+    QJsonObject &operator =(QJsonObject &&other) noexcept
     {
         swap(other);
         return *this;
     }
 
-    void swap(QJsonObject &other) Q_DECL_NOTHROW
+    void swap(QJsonObject &other) noexcept
     {
         qSwap(d, other.d);
         qSwap(o, other.o);
diff --git a/src/corelib/serialization/qjsonparser.cpp b/src/corelib/serialization/qjsonparser.cpp
index bfba95520e..f29348d593 100644
--- a/src/corelib/serialization/qjsonparser.cpp
+++ b/src/corelib/serialization/qjsonparser.cpp
@@ -316,7 +316,7 @@ QJsonDocument Parser::parse(QJsonParseError *error)
     eatBOM();
     char token = nextToken();
 
-    DEBUG << hex << (uint)token;
+    DEBUG << Qt::hex << (uint)token;
     if (token == BeginArray) {
         if (!parseArray())
             goto error;
diff --git a/src/corelib/serialization/qjsonvalue.h b/src/corelib/serialization/qjsonvalue.h
index 0339eb59f7..37d84f9e60 100644
--- a/src/corelib/serialization/qjsonvalue.h
+++ b/src/corelib/serialization/qjsonvalue.h
@@ -92,7 +92,7 @@ public:
     QJsonValue(const QJsonValue &other);
     QJsonValue &operator =(const QJsonValue &other);
 
-    QJsonValue(QJsonValue &&other) Q_DECL_NOTHROW
+    QJsonValue(QJsonValue &&other) noexcept
         : ui(other.ui),
           d(other.d),
           t(other.t)
@@ -102,13 +102,13 @@ public:
         other.t = Null;
     }
 
-    QJsonValue &operator =(QJsonValue &&other) Q_DECL_NOTHROW
+    QJsonValue &operator =(QJsonValue &&other) noexcept
     {
         swap(other);
         return *this;
     }
 
-    void swap(QJsonValue &other) Q_DECL_NOTHROW
+    void swap(QJsonValue &other) noexcept
     {
         qSwap(ui, other.ui);
         qSwap(d, other.d);
diff --git a/src/corelib/serialization/qtextstream.cpp b/src/corelib/serialization/qtextstream.cpp
index c9ba183a50..ef2a9c97ee 100644
--- a/src/corelib/serialization/qtextstream.cpp
+++ b/src/corelib/serialization/qtextstream.cpp
@@ -135,30 +135,30 @@ static const int QTEXTSTREAM_BUFFERSIZE = 16384;
 
     \table
     \header \li Manipulator        \li Description
-    \row    \li \c bin             \li Same as setIntegerBase(2).
-    \row    \li \c oct             \li Same as setIntegerBase(8).
-    \row    \li \c dec             \li Same as setIntegerBase(10).
-    \row    \li \c hex             \li Same as setIntegerBase(16).
-    \row    \li \c showbase        \li Same as setNumberFlags(numberFlags() | ShowBase).
-    \row    \li \c forcesign       \li Same as setNumberFlags(numberFlags() | ForceSign).
-    \row    \li \c forcepoint      \li Same as setNumberFlags(numberFlags() | ForcePoint).
-    \row    \li \c noshowbase      \li Same as setNumberFlags(numberFlags() & ~ShowBase).
-    \row    \li \c noforcesign     \li Same as setNumberFlags(numberFlags() & ~ForceSign).
-    \row    \li \c noforcepoint    \li Same as setNumberFlags(numberFlags() & ~ForcePoint).
-    \row    \li \c uppercasebase   \li Same as setNumberFlags(numberFlags() | UppercaseBase).
-    \row    \li \c uppercasedigits \li Same as setNumberFlags(numberFlags() | UppercaseDigits).
-    \row    \li \c lowercasebase   \li Same as setNumberFlags(numberFlags() & ~UppercaseBase).
-    \row    \li \c lowercasedigits \li Same as setNumberFlags(numberFlags() & ~UppercaseDigits).
-    \row    \li \c fixed           \li Same as setRealNumberNotation(FixedNotation).
-    \row    \li \c scientific      \li Same as setRealNumberNotation(ScientificNotation).
-    \row    \li \c left            \li Same as setFieldAlignment(AlignLeft).
-    \row    \li \c right           \li Same as setFieldAlignment(AlignRight).
-    \row    \li \c center          \li Same as setFieldAlignment(AlignCenter).
-    \row    \li \c endl            \li Same as operator<<('\\n') and flush().
-    \row    \li \c flush           \li Same as flush().
-    \row    \li \c reset           \li Same as reset().
-    \row    \li \c ws              \li Same as skipWhiteSpace().
-    \row    \li \c bom             \li Same as setGenerateByteOrderMark(true).
+    \row    \li \c Qt::bin             \li Same as setIntegerBase(2).
+    \row    \li \c Qt::oct             \li Same as setIntegerBase(8).
+    \row    \li \c Qt::dec             \li Same as setIntegerBase(10).
+    \row    \li \c Qt::hex             \li Same as setIntegerBase(16).
+    \row    \li \c Qt::showbase        \li Same as setNumberFlags(numberFlags() | ShowBase).
+    \row    \li \c Qt::forcesign       \li Same as setNumberFlags(numberFlags() | ForceSign).
+    \row    \li \c Qt::forcepoint      \li Same as setNumberFlags(numberFlags() | ForcePoint).
+    \row    \li \c Qt::noshowbase      \li Same as setNumberFlags(numberFlags() & ~ShowBase).
+    \row    \li \c Qt::noforcesign     \li Same as setNumberFlags(numberFlags() & ~ForceSign).
+    \row    \li \c Qt::noforcepoint    \li Same as setNumberFlags(numberFlags() & ~ForcePoint).
+    \row    \li \c Qt::uppercasebase   \li Same as setNumberFlags(numberFlags() | UppercaseBase).
+    \row    \li \c Qt::uppercasedigits \li Same as setNumberFlags(numberFlags() | UppercaseDigits).
+    \row    \li \c Qt::lowercasebase   \li Same as setNumberFlags(numberFlags() & ~UppercaseBase).
+    \row    \li \c Qt::lowercasedigits \li Same as setNumberFlags(numberFlags() & ~UppercaseDigits).
+    \row    \li \c Qt::fixed           \li Same as setRealNumberNotation(FixedNotation).
+    \row    \li \c Qt::scientific      \li Same as setRealNumberNotation(ScientificNotation).
+    \row    \li \c Qt::left            \li Same as setFieldAlignment(AlignLeft).
+    \row    \li \c Qt::right           \li Same as setFieldAlignment(AlignRight).
+    \row    \li \c Qt::center          \li Same as setFieldAlignment(AlignCenter).
+    \row    \li \c Qt::endl            \li Same as operator<<('\\n') and flush().
+    \row    \li \c Qt::flush           \li Same as flush().
+    \row    \li \c Qt::reset           \li Same as reset().
+    \row    \li \c Qt::ws              \li Same as skipWhiteSpace().
+    \row    \li \c Qt::bom             \li Same as setGenerateByteOrderMark(true).
     \endtable
 
     In addition, Qt provides three global manipulators that take a
@@ -2356,7 +2356,7 @@ void QTextStreamPrivate::putNumber(qulonglong number, bool negative)
     } else if (negative) {
         // Workaround for backward compatibility for writing negative
         // numbers in octal and hex:
-        // QTextStream(result) << showbase << hex << -1 << oct << -1
+        // QTextStream(result) << Qt::showbase << Qt::hex << -1 << oct << -1
         // should output: -0x1 -0b1
         result = dd->unsLongLongToString(number, -1, base, -1, flags);
         result.prepend(locale.negativeSign());
@@ -2689,6 +2689,11 @@ QTextStream &QTextStream::operator<<(const void *ptr)
     d->params.numberFlags = oldFlags;
     return *this;
 }
+#if defined(Q_QDOC) || QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+namespace Qt {
+#else
+namespace QTextStreamFunctions {
+#endif
 
 /*!
     \relates QTextStream
@@ -2973,7 +2978,7 @@ QTextStream &center(QTextStream &stream)
 */
 QTextStream &endl(QTextStream &stream)
 {
-    return stream << QLatin1Char('\n') << flush;
+    return stream << QLatin1Char('\n') << Qt::flush;
 }
 
 /*!
@@ -3015,6 +3020,8 @@ QTextStream &ws(QTextStream &stream)
     return stream;
 }
 
+} // namespace QTextStreamFunctions
+
 /*!
     \fn QTextStreamManipulator qSetFieldWidth(int width)
     \relates QTextStream
@@ -3037,6 +3044,12 @@ QTextStream &ws(QTextStream &stream)
 */
 
 #if QT_CONFIG(textcodec)
+
+#if defined(Q_QDOC) || QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+namespace Qt {
+#else
+namespace QTextStreamFunctions {
+#endif
 /*!
     \relates QTextStream
 
@@ -3051,6 +3064,8 @@ QTextStream &bom(QTextStream &stream)
     return stream;
 }
 
+} // namespace QTextStreamFunctions
+
 /*!
     Sets the codec for this stream to \a codec. The codec is used for
     decoding any data that is read from the assigned device, and for
@@ -3200,6 +3215,43 @@ QLocale QTextStream::locale() const
     return d->locale;
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && !defined(Q_QDOC)
+// Binary compatible definitions for Qt<5.14
+Q_CORE_EXPORT QTextStream &bin(QTextStream &s) { return Qt::bin(s); }
+Q_CORE_EXPORT QTextStream &oct(QTextStream &s) { return Qt::oct(s); }
+Q_CORE_EXPORT QTextStream &dec(QTextStream &s) { return Qt::dec(s); }
+Q_CORE_EXPORT QTextStream &hex(QTextStream &s) { return Qt::hex(s); }
+
+Q_CORE_EXPORT QTextStream &showbase(QTextStream &s) { return Qt::showbase(s); }
+Q_CORE_EXPORT QTextStream &forcesign(QTextStream &s) { return Qt::forcesign(s); }
+Q_CORE_EXPORT QTextStream &forcepoint(QTextStream &s) { return Qt::forcepoint(s); }
+Q_CORE_EXPORT QTextStream &noshowbase(QTextStream &s) { return Qt::noshowbase(s); }
+Q_CORE_EXPORT QTextStream &noforcesign(QTextStream &s) { return Qt::noforcesign(s); }
+Q_CORE_EXPORT QTextStream &noforcepoint(QTextStream &s) { return Qt::noforcepoint(s); }
+
+Q_CORE_EXPORT QTextStream &uppercasebase(QTextStream &s) { return Qt::uppercasebase(s); }
+Q_CORE_EXPORT QTextStream &uppercasedigits(QTextStream &s) { return Qt::uppercasedigits(s); }
+Q_CORE_EXPORT QTextStream &lowercasebase(QTextStream &s) { return Qt::lowercasebase(s); }
+Q_CORE_EXPORT QTextStream &lowercasedigits(QTextStream &s) { return Qt::lowercasedigits(s); }
+
+Q_CORE_EXPORT QTextStream &fixed(QTextStream &s) { return Qt::fixed(s); }
+Q_CORE_EXPORT QTextStream &scientific(QTextStream &s) { return Qt::scientific(s); }
+
+Q_CORE_EXPORT QTextStream &left(QTextStream &s) { return Qt::left(s); }
+Q_CORE_EXPORT QTextStream &right(QTextStream &s) { return Qt::right(s); }
+Q_CORE_EXPORT QTextStream &center(QTextStream &s) { return Qt::center(s); }
+
+Q_CORE_EXPORT QTextStream &endl(QTextStream &s) { return Qt::endl(s); }
+Q_CORE_EXPORT QTextStream &flush(QTextStream &s) { return Qt::flush(s); }
+Q_CORE_EXPORT QTextStream &reset(QTextStream &s) { return Qt::reset(s); }
+
+Q_CORE_EXPORT QTextStream &ws(QTextStream &s) { return Qt::ws(s); }
+
+#if QT_CONFIG(textcodec)
+Q_CORE_EXPORT QTextStream &bom(QTextStream &s) { return Qt::bom(s); }
+#endif
+#endif
+
 QT_END_NAMESPACE
 
 #ifndef QT_NO_QOBJECT
diff --git a/src/corelib/serialization/qtextstream.h b/src/corelib/serialization/qtextstream.h
index 1d86a18b9c..4efa84f1f1 100644
--- a/src/corelib/serialization/qtextstream.h
+++ b/src/corelib/serialization/qtextstream.h
@@ -213,8 +213,8 @@ typedef void (QTextStream::*QTSMFC)(QChar); // manipulator w/QChar argument
 class Q_CORE_EXPORT QTextStreamManipulator
 {
 public:
-    Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFI m, int a) Q_DECL_NOTHROW : mf(m), mc(nullptr), arg(a), ch() {}
-    Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFC m, QChar c) Q_DECL_NOTHROW : mf(nullptr), mc(m), arg(-1), ch(c) {}
+    Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFI m, int a) noexcept : mf(m), mc(nullptr), arg(a), ch() {}
+    Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFC m, QChar c) noexcept : mf(nullptr), mc(m), arg(-1), ch(c) {}
     void exec(QTextStream &s) { if (mf) { (s.*mf)(arg); } else { (s.*mc)(ch); } }
 
 private:
@@ -233,6 +233,13 @@ inline QTextStream &operator<<(QTextStream &s, QTextStreamFunction f)
 inline QTextStream &operator<<(QTextStream &s, QTextStreamManipulator m)
 { m.exec(s); return s; }
 
+#if defined(Q_QDOC) || QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+namespace Qt {
+#else
+// This namespace only exists for 'using namespace' declarations.
+namespace QTextStreamFunctions {
+#endif
+
 Q_CORE_EXPORT QTextStream &bin(QTextStream &s);
 Q_CORE_EXPORT QTextStream &oct(QTextStream &s);
 Q_CORE_EXPORT QTextStream &dec(QTextStream &s);
@@ -265,6 +272,18 @@ Q_CORE_EXPORT QTextStream &bom(QTextStream &s);
 
 Q_CORE_EXPORT QTextStream &ws(QTextStream &s);
 
+} // namespace QTextStreamFunctions
+
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && !defined(Q_QDOC)
+namespace Qt {
+using namespace QTextStreamFunctions;
+}
+
+// We use 'using namespace' as that doesn't cause
+// conflicting definitions compiler errors.
+using namespace QTextStreamFunctions;
+#endif // QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && !defined(Q_QDOC)
+
 inline QTextStreamManipulator qSetFieldWidth(int width)
 {
     QTSMFI func = &QTextStream::setFieldWidth;
diff --git a/src/corelib/serialization/qxmlstream.cpp b/src/corelib/serialization/qxmlstream.cpp
index 0170be7602..d43d9c4e14 100644
--- a/src/corelib/serialization/qxmlstream.cpp
+++ b/src/corelib/serialization/qxmlstream.cpp
@@ -2285,12 +2285,14 @@ QXmlStreamAttribute::QXmlStreamAttribute()
     m_isDefault = false;
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   Destructs an attribute.
  */
 QXmlStreamAttribute::~QXmlStreamAttribute()
 {
 }
+#endif
 
 /*!  Constructs an attribute in the namespace described with \a
   namespaceUri with \a name and value \a value.
@@ -2366,6 +2368,7 @@ QXmlStreamAttribute::QXmlStreamAttribute(const QString &qualifiedName, const QSt
  */
 
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   Creates a copy of \a other.
  */
@@ -2386,7 +2389,7 @@ QXmlStreamAttribute& QXmlStreamAttribute::operator=(const QXmlStreamAttribute &o
     m_isDefault = other.m_isDefault;
     return *this;
 }
-
+#endif
 
 /*!
     \class QXmlStreamAttributes
@@ -2442,6 +2445,8 @@ QXmlStreamAttribute& QXmlStreamAttribute::operator=(const QXmlStreamAttribute &o
 QXmlStreamNotationDeclaration::QXmlStreamNotationDeclaration()
 {
 }
+
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   Creates a copy of \a other.
  */
@@ -2467,6 +2472,7 @@ Destructs this notation declaration.
 QXmlStreamNotationDeclaration::~QXmlStreamNotationDeclaration()
 {
 }
+#endif
 
 /*! \fn QStringRef QXmlStreamNotationDeclaration::name() const
 
@@ -2539,6 +2545,7 @@ QXmlStreamNamespaceDeclaration::QXmlStreamNamespaceDeclaration(const QString &pr
     m_namespaceUri = namespaceUri;
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   Creates a copy of \a other.
  */
@@ -2562,6 +2569,7 @@ Destructs this namespace declaration.
 QXmlStreamNamespaceDeclaration::~QXmlStreamNamespaceDeclaration()
 {
 }
+#endif
 
 /*! \fn QStringRef QXmlStreamNamespaceDeclaration::prefix() const
 
@@ -2609,6 +2617,7 @@ QXmlStreamEntityDeclaration::QXmlStreamEntityDeclaration()
 {
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   Creates a copy of \a other.
  */
@@ -2636,6 +2645,7 @@ QXmlStreamEntityDeclaration& QXmlStreamEntityDeclaration::operator=(const QXmlSt
 QXmlStreamEntityDeclaration::~QXmlStreamEntityDeclaration()
 {
 }
+#endif
 
 /*! \fn QXmlStreamStringRef::swap(QXmlStreamStringRef &other)
     \since 5.6
diff --git a/src/corelib/serialization/qxmlstream.h b/src/corelib/serialization/qxmlstream.h
index d30c6bc01f..7d0aa64570 100644
--- a/src/corelib/serialization/qxmlstream.h
+++ b/src/corelib/serialization/qxmlstream.h
@@ -59,19 +59,15 @@ public:
     inline QXmlStreamStringRef(const QStringRef &aString)
         :m_string(aString.string()?*aString.string():QString()), m_position(aString.position()), m_size(aString.size()){}
     QXmlStreamStringRef(const QString &aString) : m_string(aString), m_position(0), m_size(m_string.size()) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QXmlStreamStringRef(QString &&aString) Q_DECL_NOTHROW : m_string(std::move(aString)), m_position(0), m_size(m_string.size()) {}
-#endif
+    QXmlStreamStringRef(QString &&aString) noexcept : m_string(std::move(aString)), m_position(0), m_size(m_string.size()) {}
 
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     QXmlStreamStringRef(const QXmlStreamStringRef &other) // = default
         : m_string(other.m_string), m_position(other.m_position), m_size(other.m_size) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QXmlStreamStringRef(QXmlStreamStringRef &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamStringRef(QXmlStreamStringRef &&other) noexcept // = default
         : m_string(std::move(other.m_string)), m_position(other.m_position), m_size(other.m_size) {}
-    QXmlStreamStringRef &operator=(QXmlStreamStringRef &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamStringRef &operator=(QXmlStreamStringRef &&other) noexcept // = default
     { swap(other); return *this; }
-#endif
     QXmlStreamStringRef &operator=(const QXmlStreamStringRef &other) // = default
     { m_string = other.m_string; m_position = other.m_position; m_size = other.m_size; return *this; }
     inline ~QXmlStreamStringRef() {} // ### this prevents (or deprecates) all the move/copy special member functions,
@@ -79,7 +75,7 @@ public:
                                      // ### Qt 5, since that would change the way its passed to functions. In Qt 6, remove all.
 #endif // Qt < 6.0
 
-    void swap(QXmlStreamStringRef &other) Q_DECL_NOTHROW
+    void swap(QXmlStreamStringRef &other) noexcept
     {
         qSwap(m_string, other.m_string);
         qSwap(m_position, other.m_position);
@@ -108,11 +104,10 @@ class Q_CORE_EXPORT QXmlStreamAttribute {
 public:
     QXmlStreamAttribute();
     QXmlStreamAttribute(const QString &qualifiedName, const QString &value);
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QXmlStreamAttribute(const QString &namespaceUri, const QString &name, const QString &value);
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QXmlStreamAttribute(const QXmlStreamAttribute &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QXmlStreamAttribute(QXmlStreamAttribute &&other) Q_DECL_NOTHROW // = default;
+    QXmlStreamAttribute(QXmlStreamAttribute &&other) noexcept // = default;
         : m_name(std::move(other.m_name)),
           m_namespaceUri(std::move(other.m_namespaceUri)),
           m_qualifiedName(std::move(other.m_qualifiedName)),
@@ -122,7 +117,7 @@ public:
     {
         other.reserved = nullptr;
     }
-    QXmlStreamAttribute &operator=(QXmlStreamAttribute &&other) Q_DECL_NOTHROW // = default;
+    QXmlStreamAttribute &operator=(QXmlStreamAttribute &&other) noexcept // = default;
     {
         m_name = std::move(other.m_name);
         m_namespaceUri = std::move(other.m_namespaceUri);
@@ -132,7 +127,6 @@ public:
         m_isDefault = other.m_isDefault;
         return *this;
     }
-#endif
     QXmlStreamAttribute& operator=(const QXmlStreamAttribute &);
     ~QXmlStreamAttribute();
 #endif // < Qt 6
@@ -197,23 +191,23 @@ class Q_CORE_EXPORT QXmlStreamNamespaceDeclaration {
     friend class QXmlStreamReaderPrivate;
 public:
     QXmlStreamNamespaceDeclaration();
+    QXmlStreamNamespaceDeclaration(const QString &prefix, const QString &namespaceUri);
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QXmlStreamNamespaceDeclaration(const QXmlStreamNamespaceDeclaration &);
-    QXmlStreamNamespaceDeclaration(QXmlStreamNamespaceDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamNamespaceDeclaration(QXmlStreamNamespaceDeclaration &&other) noexcept // = default
         : m_prefix(std::move(other.m_prefix)),
           m_namespaceUri(std::move(other.m_namespaceUri)),
           reserved(other.reserved)
     {
         other.reserved = nullptr;
     }
-    QXmlStreamNamespaceDeclaration &operator=(QXmlStreamNamespaceDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamNamespaceDeclaration &operator=(QXmlStreamNamespaceDeclaration &&other) noexcept // = default
     {
         m_prefix = std::move(other.m_prefix);
         m_namespaceUri = std::move(other.m_namespaceUri);
         qSwap(reserved, other.reserved);
         return *this;
     }
-    QXmlStreamNamespaceDeclaration(const QString &prefix, const QString &namespaceUri);
     ~QXmlStreamNamespaceDeclaration();
     QXmlStreamNamespaceDeclaration& operator=(const QXmlStreamNamespaceDeclaration &);
 #endif // < Qt 6
@@ -242,7 +236,7 @@ public:
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     ~QXmlStreamNotationDeclaration();
     QXmlStreamNotationDeclaration(const QXmlStreamNotationDeclaration &);
-    QXmlStreamNotationDeclaration(QXmlStreamNotationDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamNotationDeclaration(QXmlStreamNotationDeclaration &&other) noexcept // = default
         : m_name(std::move(other.m_name)),
           m_systemId(std::move(other.m_systemId)),
           m_publicId(std::move(other.m_publicId)),
@@ -251,7 +245,7 @@ public:
         other.reserved = nullptr;
     }
     QXmlStreamNotationDeclaration& operator=(const QXmlStreamNotationDeclaration &);
-    QXmlStreamNotationDeclaration &operator=(QXmlStreamNotationDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamNotationDeclaration &operator=(QXmlStreamNotationDeclaration &&other) noexcept // = default
     {
         m_name = std::move(other.m_name);
         m_systemId = std::move(other.m_systemId);
@@ -287,7 +281,7 @@ public:
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     ~QXmlStreamEntityDeclaration();
     QXmlStreamEntityDeclaration(const QXmlStreamEntityDeclaration &);
-    QXmlStreamEntityDeclaration(QXmlStreamEntityDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamEntityDeclaration(QXmlStreamEntityDeclaration &&other) noexcept // = default
         : m_name(std::move(other.m_name)),
           m_notationName(std::move(other.m_notationName)),
           m_systemId(std::move(other.m_systemId)),
@@ -298,7 +292,7 @@ public:
         other.reserved = nullptr;
     }
     QXmlStreamEntityDeclaration& operator=(const QXmlStreamEntityDeclaration &);
-    QXmlStreamEntityDeclaration &operator=(QXmlStreamEntityDeclaration &&other) Q_DECL_NOTHROW // = default
+    QXmlStreamEntityDeclaration &operator=(QXmlStreamEntityDeclaration &&other) noexcept // = default
     {
         m_name = std::move(other.m_name);
         m_notationName = std::move(other.m_notationName);
diff --git a/src/corelib/serialization/qxmlstream_p.h b/src/corelib/serialization/qxmlstream_p.h
index 61f501f81b..cde66a48a3 100644
--- a/src/corelib/serialization/qxmlstream_p.h
+++ b/src/corelib/serialization/qxmlstream_p.h
@@ -162,12 +162,12 @@ public:
 
 
 const char *const QXmlStreamReader_Table::spell [] = {
-  "end of file", 0, " ", "<", ">", "&", "#", "\'", "\"", "[", 
+  "end of file", nullptr, " ", "<", ">", "&", "#", "\'", "\"", "[",
   "]", "(", ")", "|", "=", "%", "/", ":", ";", ",", 
   "-", "+", "*", ".", "?", "!", "[a-zA-Z]", "[0-9]", "[CDATA[", "DOCTYPE", 
   "ELEMENT", "ATTLIST", "ENTITY", "NOTATION", "SYSTEM", "PUBLIC", "NDATA", "REQUIRED", "IMPLIED", "FIXED", 
-  "EMPTY", "ANY", "PCDATA", 0, 0, 0, 0, "CDATA", "ID", "IDREF", 
-  "IDREFS", "ENTITIES", "NMTOKEN", "NMTOKENS", "<?xml", "version", 0};
+  "EMPTY", "ANY", "PCDATA", nullptr, nullptr, nullptr, nullptr, "CDATA", "ID", "IDREF",
+  "IDREFS", "ENTITIES", "NMTOKEN", "NMTOKENS", "<?xml", "version", nullptr};
 
 const short QXmlStreamReader_Table::lhs [] = {
   57, 57, 59, 59, 59, 59, 59, 59, 59, 59, 
@@ -645,7 +645,7 @@ template <typename T> class QXmlStreamSimpleStack {
     T *data;
     int tos, cap;
 public:
-    inline QXmlStreamSimpleStack():data(0), tos(-1), cap(0){}
+    inline QXmlStreamSimpleStack():data(nullptr), tos(-1), cap(0){}
     inline ~QXmlStreamSimpleStack(){ if (data) free(data); }
 
     inline void reserve(int extraCapacity) {
@@ -995,7 +995,7 @@ public:
     int fastScanLiteralContent();
     int fastScanSpace();
     int fastScanContentCharList();
-    int fastScanName(int *prefix = 0);
+    int fastScanName(int *prefix = nullptr);
     inline int fastScanNMTOKEN();
 
 
diff --git a/src/corelib/statemachine/qstate_p.h b/src/corelib/statemachine/qstate_p.h
index 7fb40392e7..ec746caae1 100644
--- a/src/corelib/statemachine/qstate_p.h
+++ b/src/corelib/statemachine/qstate_p.h
@@ -68,14 +68,14 @@ QT_BEGIN_NAMESPACE
 struct QPropertyAssignment
 {
     QPropertyAssignment()
-        : object(0), explicitlySet(true) {}
+        : object(nullptr), explicitlySet(true) {}
     QPropertyAssignment(QObject *o, const QByteArray &n,
                         const QVariant &v, bool es = true)
         : object(o), propertyName(n), value(v), explicitlySet(es)
         {}
 
     bool objectDeleted() const { return !object; }
-    void write() const { Q_ASSERT(object != 0); object->setProperty(propertyName, value); }
+    void write() const { Q_ASSERT(object != nullptr); object->setProperty(propertyName, value); }
     bool hasTarget(QObject *o, const QByteArray &pn) const
     { return object == o && propertyName == pn; }
 
@@ -99,8 +99,8 @@ public:
     QStatePrivate();
     ~QStatePrivate();
 
-    static QStatePrivate *get(QState *q) { return q ? q->d_func() : 0; }
-    static const QStatePrivate *get(const QState *q) { return q? q->d_func() : 0; }
+    static QStatePrivate *get(QState *q) { return q ? q->d_func() : nullptr; }
+    static const QStatePrivate *get(const QState *q) { return q? q->d_func() : nullptr; }
 
     QList<QAbstractState*> childStates() const;
     QList<QHistoryState*> historyStates() const;
diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index ee3f7be279..be48dbc92f 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -370,10 +370,11 @@ static QList<QAbstractState *> getEffectiveTargetStates(QAbstractTransition *tra
             QList<QAbstractState*> historyConfiguration = QHistoryStatePrivate::get(historyState)->configuration;
             if (!historyConfiguration.isEmpty()) {
                 // There is a saved history, so apply that.
-                targets.unite(historyConfiguration.toSet());
+                targets.unite(QSet<QAbstractState *>(historyConfiguration.constBegin(), historyConfiguration.constEnd()));
             } else if (QAbstractTransition *defaultTransition = historyState->defaultTransition()) {
                 // No saved history, take all default transition targets.
-                targets.unite(defaultTransition->targetStates().toSet());
+                const auto &targetStates = defaultTransition->targetStates();
+                targets.unite(QSet<QAbstractState *>(targetStates.constBegin(), targetStates.constEnd()));
             } else {
                 // Woops, we found a history state without a default state. That's not valid!
                 QStateMachinePrivate *m = QStateMachinePrivate::get(historyState->machine());
@@ -384,7 +385,7 @@ static QList<QAbstractState *> getEffectiveTargetStates(QAbstractTransition *tra
         }
     }
 
-    targetsList = targets.toList();
+    targetsList = targets.values();
     cache->insert(transition, targetsList);
     return targetsList;
 }
@@ -740,7 +741,7 @@ QList<QAbstractState*> QStateMachinePrivate::computeExitSet(const QList<QAbstrac
 {
     Q_ASSERT(cache);
 
-    QList<QAbstractState*> statesToExit_sorted = computeExitSet_Unordered(enabledTransitions, cache).toList();
+    QList<QAbstractState*> statesToExit_sorted = computeExitSet_Unordered(enabledTransitions, cache).values();
     std::sort(statesToExit_sorted.begin(), statesToExit_sorted.end(), stateExitLessThan);
     return statesToExit_sorted;
 }
@@ -777,7 +778,7 @@ QSet<QAbstractState*> QStateMachinePrivate::computeExitSet_Unordered(QAbstractTr
         // makes the state machine invalid.
         if (error == QStateMachine::NoError)
             setError(QStateMachine::NoCommonAncestorForTransitionError, t->sourceState());
-        QList<QAbstractState *> lst = pendingErrorStates.toList();
+        QList<QAbstractState *> lst = pendingErrorStates.values();
         lst.prepend(t->sourceState());
 
         domain = findLCCA(lst);
@@ -879,7 +880,7 @@ QList<QAbstractState*> QStateMachinePrivate::computeEntrySet(const QList<QAbstra
         pendingErrorStatesForDefaultEntry.clear();
     }
 
-    QList<QAbstractState*> statesToEnter_sorted = statesToEnter.toList();
+    QList<QAbstractState*> statesToEnter_sorted = statesToEnter.values();
     std::sort(statesToEnter_sorted.begin(), statesToEnter_sorted.end(), stateEntryLessThan);
     return statesToEnter_sorted;
 }
diff --git a/src/corelib/statemachine/qstatemachine_p.h b/src/corelib/statemachine/qstatemachine_p.h
index f3366ca5f7..d6fdd72dc1 100644
--- a/src/corelib/statemachine/qstatemachine_p.h
+++ b/src/corelib/statemachine/qstatemachine_p.h
@@ -108,7 +108,7 @@ public:
     ~QStateMachinePrivate();
 
     static QStateMachinePrivate *get(QStateMachine *q)
-    { return q ? q->d_func() : 0; }
+    { return q ? q->d_func() : nullptr; }
 
     QState *findLCA(const QList<QAbstractState*> &states, bool onlyCompound = false) const;
     QState *findLCCA(const QList<QAbstractState*> &states) const;
@@ -218,18 +218,18 @@ public:
         QByteArray prop;
         // two overloads because friends can't have default arguments
         friend uint qHash(const RestorableId &key, uint seed)
-            Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(std::declval<QByteArray>())))
+            noexcept(noexcept(qHash(std::declval<QByteArray>())))
         { return qHash(qMakePair(key.obj, key.prop), seed); }
-        friend uint qHash(const RestorableId &key) Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(key, 0U)))
+        friend uint qHash(const RestorableId &key) noexcept(noexcept(qHash(key, 0U)))
         { return qHash(key, 0U); }
-        friend bool operator==(const RestorableId &lhs, const RestorableId &rhs) Q_DECL_NOTHROW
+        friend bool operator==(const RestorableId &lhs, const RestorableId &rhs) noexcept
         { return lhs.obj == rhs.obj && lhs.prop == rhs.prop; }
-        friend bool operator!=(const RestorableId &lhs, const RestorableId &rhs) Q_DECL_NOTHROW
+        friend bool operator!=(const RestorableId &lhs, const RestorableId &rhs) noexcept
         { return !operator==(lhs, rhs); }
     public:
-        explicit RestorableId(QObject *o, QByteArray p) Q_DECL_NOTHROW : guard(o), obj(o), prop(qMove(p)) {}
-        QObject *object() const Q_DECL_NOTHROW { return guard; }
-        QByteArray propertyName() const Q_DECL_NOTHROW { return prop; }
+        explicit RestorableId(QObject *o, QByteArray p) noexcept : guard(o), obj(o), prop(std::move(p)) {}
+        QObject *object() const noexcept { return guard; }
+        QByteArray propertyName() const noexcept { return prop; }
     };
     QHash<QAbstractState*, QHash<RestorableId, QVariant> > registeredRestorablesForState;
     bool hasRestorable(QAbstractState *state, QObject *object, const QByteArray &propertyName) const;
@@ -271,7 +271,7 @@ public:
         QList<QAbstractAnimation*> handledAnimations;
         QList<QAbstractAnimation*> localResetEndValues;
 
-        void swap(InitializeAnimationResult &other) Q_DECL_NOTHROW
+        void swap(InitializeAnimationResult &other) noexcept
         {
             qSwap(handledAnimations,   other.handledAnimations);
             qSwap(localResetEndValues, other.localResetEndValues);
@@ -313,7 +313,7 @@ public:
         DelayedEvent(QEvent *e, int tid)
             : event(e), timerId(tid) {}
         DelayedEvent()
-            : event(0), timerId(0) {}
+            : event(nullptr), timerId(0) {}
     };
     QHash<int, DelayedEvent> delayedEvents;
     QHash<int, int> timerIdToDelayedEventId;
diff --git a/src/corelib/thread/qatomic.h b/src/corelib/thread/qatomic.h
index f842534c38..280ce96b76 100644
--- a/src/corelib/thread/qatomic.h
+++ b/src/corelib/thread/qatomic.h
@@ -57,15 +57,15 @@ class QAtomicInteger : public QBasicAtomicInteger<T>
 public:
     // Non-atomic API
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
-    constexpr QAtomicInteger(T value = 0) Q_DECL_NOTHROW : QBasicAtomicInteger<T>(value) {}
+    constexpr QAtomicInteger(T value = 0) noexcept : QBasicAtomicInteger<T>(value) {}
 #else
-    inline QAtomicInteger(T value = 0) Q_DECL_NOTHROW
+    inline QAtomicInteger(T value = 0) noexcept
     {
         this->_q_value = value;
     }
 #endif
 
-    inline QAtomicInteger(const QAtomicInteger &other) Q_DECL_NOTHROW
+    inline QAtomicInteger(const QAtomicInteger &other) noexcept
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
         : QBasicAtomicInteger<T>()
 #endif
@@ -73,7 +73,7 @@ public:
         this->storeRelease(other.loadAcquire());
     }
 
-    inline QAtomicInteger &operator=(const QAtomicInteger &other) Q_DECL_NOTHROW
+    inline QAtomicInteger &operator=(const QAtomicInteger &other) noexcept
     {
         this->storeRelease(other.loadAcquire());
         return *this;
@@ -159,7 +159,7 @@ public:
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     constexpr
 #endif
-    QAtomicInt(int value = 0) Q_DECL_NOTHROW : QAtomicInteger<int>(value) {}
+    QAtomicInt(int value = 0) noexcept : QAtomicInteger<int>(value) {}
 };
 
 // High-level atomic pointer operations
@@ -168,14 +168,14 @@ class QAtomicPointer : public QBasicAtomicPointer<T>
 {
 public:
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
-    constexpr QAtomicPointer(T *value = nullptr) Q_DECL_NOTHROW : QBasicAtomicPointer<T>(value) {}
+    constexpr QAtomicPointer(T *value = nullptr) noexcept : QBasicAtomicPointer<T>(value) {}
 #else
-    inline QAtomicPointer(T *value = nullptr) Q_DECL_NOTHROW
+    inline QAtomicPointer(T *value = nullptr) noexcept
     {
         this->store(value);
     }
 #endif
-    inline QAtomicPointer(const QAtomicPointer<T> &other) Q_DECL_NOTHROW
+    inline QAtomicPointer(const QAtomicPointer<T> &other) noexcept
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
         : QBasicAtomicPointer<T>()
 #endif
@@ -183,7 +183,7 @@ public:
         this->storeRelease(other.loadAcquire());
     }
 
-    inline QAtomicPointer<T> &operator=(const QAtomicPointer<T> &other) Q_DECL_NOTHROW
+    inline QAtomicPointer<T> &operator=(const QAtomicPointer<T> &other) noexcept
     {
         this->storeRelease(other.loadAcquire());
         return *this;
diff --git a/src/corelib/thread/qatomic_bootstrap.h b/src/corelib/thread/qatomic_bootstrap.h
index b463f817bd..c4279ee7b1 100644
--- a/src/corelib/thread/qatomic_bootstrap.h
+++ b/src/corelib/thread/qatomic_bootstrap.h
@@ -56,16 +56,16 @@ template <typename T> struct QAtomicOps: QGenericAtomicOps<QAtomicOps<T> >
 {
     typedef T Type;
 
-    static bool ref(T &_q_value) Q_DECL_NOTHROW
+    static bool ref(T &_q_value) noexcept
     {
         return ++_q_value != 0;
     }
-    static bool deref(T &_q_value) Q_DECL_NOTHROW
+    static bool deref(T &_q_value) noexcept
     {
         return --_q_value != 0;
     }
 
-    static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue = 0) Q_DECL_NOTHROW
+    static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
     {
         if (currentValue)
             *currentValue = _q_value;
@@ -76,7 +76,7 @@ template <typename T> struct QAtomicOps: QGenericAtomicOps<QAtomicOps<T> >
         return false;
     }
 
-    static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW
+    static T fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept
     {
         T tmp = _q_value;
         _q_value = newValue;
@@ -84,7 +84,7 @@ template <typename T> struct QAtomicOps: QGenericAtomicOps<QAtomicOps<T> >
     }
 
     template <typename AdditiveType> static
-    T fetchAndAddRelaxed(T &_q_value, AdditiveType valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelaxed(T &_q_value, AdditiveType valueToAdd) noexcept
     {
         T returnValue = _q_value;
         _q_value += valueToAdd;
diff --git a/src/corelib/thread/qatomic_cxx11.h b/src/corelib/thread/qatomic_cxx11.h
index 2fc0bf5419..2851bae73e 100644
--- a/src/corelib/thread/qatomic_cxx11.h
+++ b/src/corelib/thread/qatomic_cxx11.h
@@ -222,43 +222,43 @@ template <typename X> struct QAtomicOps
     typedef std::atomic<X> Type;
 
     template <typename T> static inline
-    T load(const std::atomic<T> &_q_value) Q_DECL_NOTHROW
+    T load(const std::atomic<T> &_q_value) noexcept
     {
         return _q_value.load(std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T load(const volatile std::atomic<T> &_q_value) Q_DECL_NOTHROW
+    T load(const volatile std::atomic<T> &_q_value) noexcept
     {
         return _q_value.load(std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T loadAcquire(const std::atomic<T> &_q_value) Q_DECL_NOTHROW
+    T loadAcquire(const std::atomic<T> &_q_value) noexcept
     {
         return _q_value.load(std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T loadAcquire(const volatile std::atomic<T> &_q_value) Q_DECL_NOTHROW
+    T loadAcquire(const volatile std::atomic<T> &_q_value) noexcept
     {
         return _q_value.load(std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    void store(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    void store(std::atomic<T> &_q_value, T newValue) noexcept
     {
         _q_value.store(newValue, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    void storeRelease(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    void storeRelease(std::atomic<T> &_q_value, T newValue) noexcept
     {
         _q_value.store(newValue, std::memory_order_release);
     }
 
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return isTestAndSetNative(); }
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() noexcept { return isTestAndSetNative(); }
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() noexcept { return false; }
     template <typename T>
     static inline bool ref(std::atomic<T> &_q_value)
     {
@@ -266,17 +266,17 @@ template <typename X> struct QAtomicOps
     }
 
     template <typename T>
-    static inline bool deref(std::atomic<T> &_q_value) Q_DECL_NOTHROW
+    static inline bool deref(std::atomic<T> &_q_value) noexcept
     {
         return --_q_value != 0;
     }
 
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept
     { return QAtomicTraits<sizeof(X)>::isLockFree(); }
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return false; }
 
     template <typename T>
-    static bool testAndSetRelaxed(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) Q_DECL_NOTHROW
+    static bool testAndSetRelaxed(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
     {
         bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_relaxed, std::memory_order_relaxed);
         if (currentValue)
@@ -285,7 +285,7 @@ template <typename X> struct QAtomicOps
     }
 
     template <typename T>
-    static bool testAndSetAcquire(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) Q_DECL_NOTHROW
+    static bool testAndSetAcquire(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
     {
         bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_acquire, std::memory_order_acquire);
         if (currentValue)
@@ -294,7 +294,7 @@ template <typename X> struct QAtomicOps
     }
 
     template <typename T>
-    static bool testAndSetRelease(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) Q_DECL_NOTHROW
+    static bool testAndSetRelease(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
     {
         bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_release, std::memory_order_relaxed);
         if (currentValue)
@@ -303,7 +303,7 @@ template <typename X> struct QAtomicOps
     }
 
     template <typename T>
-    static bool testAndSetOrdered(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) Q_DECL_NOTHROW
+    static bool testAndSetOrdered(std::atomic<T> &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
     {
         bool tmp = _q_value.compare_exchange_strong(expectedValue, newValue, std::memory_order_acq_rel, std::memory_order_acquire);
         if (currentValue)
@@ -311,158 +311,158 @@ template <typename X> struct QAtomicOps
         return tmp;
     }
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return isTestAndSetNative(); }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return isTestAndSetNative(); }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return false; }
 
     template <typename T>
-    static T fetchAndStoreRelaxed(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    static T fetchAndStoreRelaxed(std::atomic<T> &_q_value, T newValue) noexcept
     {
         return _q_value.exchange(newValue, std::memory_order_relaxed);
     }
 
     template <typename T>
-    static T fetchAndStoreAcquire(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    static T fetchAndStoreAcquire(std::atomic<T> &_q_value, T newValue) noexcept
     {
         return _q_value.exchange(newValue, std::memory_order_acquire);
     }
 
     template <typename T>
-    static T fetchAndStoreRelease(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    static T fetchAndStoreRelease(std::atomic<T> &_q_value, T newValue) noexcept
     {
         return _q_value.exchange(newValue, std::memory_order_release);
     }
 
     template <typename T>
-    static T fetchAndStoreOrdered(std::atomic<T> &_q_value, T newValue) Q_DECL_NOTHROW
+    static T fetchAndStoreOrdered(std::atomic<T> &_q_value, T newValue) noexcept
     {
         return _q_value.exchange(newValue, std::memory_order_acq_rel);
     }
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return isTestAndSetNative(); }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return isTestAndSetNative(); }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return false; }
 
     template <typename T> static inline
-    T fetchAndAddRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_add(valueToAdd, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T fetchAndAddAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_add(valueToAdd, std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T fetchAndAddRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_add(valueToAdd, std::memory_order_release);
     }
 
     template <typename T> static inline
-    T fetchAndAddOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_add(valueToAdd, std::memory_order_acq_rel);
     }
 
     template <typename T> static inline
-    T fetchAndSubRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_sub(valueToAdd, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T fetchAndSubAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_sub(valueToAdd, std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T fetchAndSubRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_sub(valueToAdd, std::memory_order_release);
     }
 
     template <typename T> static inline
-    T fetchAndSubOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_sub(valueToAdd, std::memory_order_acq_rel);
     }
 
     template <typename T> static inline
-    T fetchAndAndRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_and(valueToAdd, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T fetchAndAndAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_and(valueToAdd, std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T fetchAndAndRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_and(valueToAdd, std::memory_order_release);
     }
 
     template <typename T> static inline
-    T fetchAndAndOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_and(valueToAdd, std::memory_order_acq_rel);
     }
 
     template <typename T> static inline
-    T fetchAndOrRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_or(valueToAdd, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T fetchAndOrAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_or(valueToAdd, std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T fetchAndOrRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_or(valueToAdd, std::memory_order_release);
     }
 
     template <typename T> static inline
-    T fetchAndOrOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_or(valueToAdd, std::memory_order_acq_rel);
     }
 
     template <typename T> static inline
-    T fetchAndXorRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorRelaxed(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_xor(valueToAdd, std::memory_order_relaxed);
     }
 
     template <typename T> static inline
-    T fetchAndXorAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorAcquire(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_xor(valueToAdd, std::memory_order_acquire);
     }
 
     template <typename T> static inline
-    T fetchAndXorRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorRelease(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_xor(valueToAdd, std::memory_order_release);
     }
 
     template <typename T> static inline
-    T fetchAndXorOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorOrdered(std::atomic<T> &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         return _q_value.fetch_xor(valueToAdd, std::memory_order_acq_rel);
     }
 };
 
-#if defined(Q_COMPILER_CONSTEXPR) && defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
+#if defined(Q_COMPILER_CONSTEXPR)
 #  define Q_BASIC_ATOMIC_INITIALIZER(a)     { a }
 #else
 #  define Q_BASIC_ATOMIC_INITIALIZER(a)     { ATOMIC_VAR_INIT(a) }
diff --git a/src/corelib/thread/qatomic_msvc.h b/src/corelib/thread/qatomic_msvc.h
index 5eae2bdc48..67b5224cd7 100644
--- a/src/corelib/thread/qatomic_msvc.h
+++ b/src/corelib/thread/qatomic_msvc.h
@@ -269,24 +269,24 @@ template <> struct QAtomicWindowsType<4> { typedef long Type; };
 
 template <int N> struct QAtomicOpsBySize : QGenericAtomicOps<QAtomicOpsBySize<N> >
 {
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return true; }
-    template <typename T> static bool ref(T &_q_value) Q_DECL_NOTHROW;
-    template <typename T> static bool deref(T &_q_value) Q_DECL_NOTHROW;
-
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return true; }
-    template <typename T> static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() noexcept { return true; }
+    template <typename T> static bool ref(T &_q_value) noexcept;
+    template <typename T> static bool deref(T &_q_value) noexcept;
+
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return true; }
+    template <typename T> static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept;
     template <typename T>
-    static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW;
+    static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept;
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return true; }
-    template <typename T> static T fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return true; }
+    template <typename T> static T fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept;
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return true; }
-    template <typename T> static T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return true; }
+    template <typename T> static T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept;
 
 private:
     typedef typename QAtomicWindowsType<N>::Type Type;
@@ -303,76 +303,76 @@ struct QAtomicOps : QAtomicOpsBySize<sizeof(T)>
 };
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<4>::ref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<4>::ref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Increment)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<4>::deref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<4>::deref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Decrement)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue);
 }
 
 template<> template <typename T>
-inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<4>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept
 {
     *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange)(atomic(&_q_value), newValue, expectedValue));
     return *currentValue == expectedValue;
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<4>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<4>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Exchange)(atomic(&_q_value), value(newValue));
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<4>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<4>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(ExchangeAdd)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale));
 }
 
 #ifdef Q_ATOMIC_INT16_IS_SUPPORTED
 template<> template<typename T>
-inline bool QAtomicOpsBySize<2>::ref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<2>::ref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Increment16)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<2>::deref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<2>::deref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Decrement16)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue);
 }
 
 template<> template <typename T>
-inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<2>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept
 {
     *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange16)(atomic(&_q_value), newValue, expectedValue));
     return *currentValue == expectedValue;
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<2>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<2>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Exchange16)(atomic(&_q_value), value(newValue));
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<2>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<2>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(ExchangeAdd16)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale));
 }
@@ -380,38 +380,38 @@ inline T QAtomicOpsBySize<2>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAd
 
 #ifdef Q_ATOMIC_INT64_IS_SUPPORTED
 template<> template<typename T>
-inline bool QAtomicOpsBySize<8>::ref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<8>::ref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Increment64)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<8>::deref(T &_q_value) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<8>::deref(T &_q_value) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Decrement64)(atomic(&_q_value)) != 0;
 }
 
 template<> template<typename T>
-inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), value(newValue), value(expectedValue)) == value(expectedValue);
 }
 
 template<> template <typename T>
-inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) Q_DECL_NOTHROW
+inline bool QAtomicOpsBySize<8>::testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue) noexcept
 {
     *currentValue = T(QT_INTERLOCKED_FUNCTION(CompareExchange64)(atomic(&_q_value), newValue, expectedValue));
     return *currentValue == expectedValue;
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<8>::fetchAndStoreRelaxed(T &_q_value, T newValue) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<8>::fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(Exchange64)(atomic(&_q_value), value(newValue));
 }
 
 template<> template<typename T>
-inline T QAtomicOpsBySize<8>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+inline T QAtomicOpsBySize<8>::fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
 {
     return QT_INTERLOCKED_FUNCTION(ExchangeAdd64)(atomic(&_q_value), value<T>(valueToAdd * QAtomicAdditiveType<T>::AddScale));
 }
@@ -423,41 +423,41 @@ struct QAtomicOps<T *> : QGenericAtomicOps<QAtomicOps<T *> >
 {
     typedef T *Type;
 
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return true; }
-    static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) Q_DECL_NOTHROW;
-    static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return true; }
+    static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) noexcept;
+    static bool testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) noexcept;
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return true; }
-    static T *fetchAndStoreRelaxed(T *&_q_value, T *newValue) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return true; }
+    static T *fetchAndStoreRelaxed(T *&_q_value, T *newValue) noexcept;
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return true; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return true; }
-    static T *fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return true; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return true; }
+    static T *fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) noexcept;
 };
 
 template <typename T>
-inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) Q_DECL_NOTHROW
+inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue) noexcept
 {
     return QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue) == expectedValue;
 }
 
 template <typename T>
-inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) Q_DECL_NOTHROW
+inline bool QAtomicOps<T *>::testAndSetRelaxed(T *&_q_value, T *expectedValue, T *newValue, T **currentValue) noexcept
 {
     *currentValue = reinterpret_cast<T *>(QT_INTERLOCKED_COMPARE_EXCHANGE_POINTER(&_q_value, newValue, expectedValue));
     return *currentValue == expectedValue;
 }
 
 template <typename T>
-inline T *QAtomicOps<T *>::fetchAndStoreRelaxed(T *&_q_value, T *newValue) Q_DECL_NOTHROW
+inline T *QAtomicOps<T *>::fetchAndStoreRelaxed(T *&_q_value, T *newValue) noexcept
 {
     return reinterpret_cast<T *>(QT_INTERLOCKED_EXCHANGE_POINTER(&_q_value, newValue));
 }
 
 template <typename T>
-inline T *QAtomicOps<T *>::fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) Q_DECL_NOTHROW
+inline T *QAtomicOps<T *>::fetchAndAddRelaxed(T *&_q_value, qptrdiff valueToAdd) noexcept
 {
     return reinterpret_cast<T *>(QT_INTERLOCKED_EXCHANGE_ADD_POINTER(&_q_value, valueToAdd * sizeof(T)));
 }
diff --git a/src/corelib/thread/qbasicatomic.h b/src/corelib/thread/qbasicatomic.h
index 6b6ac10713..7d2e06a499 100644
--- a/src/corelib/thread/qbasicatomic.h
+++ b/src/corelib/thread/qbasicatomic.h
@@ -75,7 +75,7 @@ QT_END_NAMESPACE
 
 // New atomics
 
-#if defined(Q_COMPILER_CONSTEXPR) && defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
+#if defined(Q_COMPILER_CONSTEXPR)
 # if defined(Q_CC_CLANG) && Q_CC_CLANG < 303
    /*
       Do not define QT_BASIC_ATOMIC_HAS_CONSTRUCTORS for Clang before version 3.3.
@@ -100,125 +100,125 @@ public:
 
     // Everything below is either implemented in ../arch/qatomic_XXX.h or (as fallback) in qgenericatomic.h
 
-    T load() const Q_DECL_NOTHROW { return Ops::load(_q_value); }
-    void store(T newValue) Q_DECL_NOTHROW { Ops::store(_q_value, newValue); }
+    T load() const noexcept { return Ops::load(_q_value); }
+    void store(T newValue) noexcept { Ops::store(_q_value, newValue); }
 
-    T loadAcquire() const Q_DECL_NOTHROW { return Ops::loadAcquire(_q_value); }
-    void storeRelease(T newValue) Q_DECL_NOTHROW { Ops::storeRelease(_q_value, newValue); }
-    operator T() const Q_DECL_NOTHROW { return loadAcquire(); }
-    T operator=(T newValue) Q_DECL_NOTHROW { storeRelease(newValue); return newValue; }
+    T loadAcquire() const noexcept { return Ops::loadAcquire(_q_value); }
+    void storeRelease(T newValue) noexcept { Ops::storeRelease(_q_value, newValue); }
+    operator T() const noexcept { return loadAcquire(); }
+    T operator=(T newValue) noexcept { storeRelease(newValue); return newValue; }
 
-    static Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return Ops::isReferenceCountingNative(); }
-    static Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return Ops::isReferenceCountingWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isReferenceCountingNative() noexcept { return Ops::isReferenceCountingNative(); }
+    static Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() noexcept { return Ops::isReferenceCountingWaitFree(); }
 
-    bool ref() Q_DECL_NOTHROW { return Ops::ref(_q_value); }
-    bool deref() Q_DECL_NOTHROW { return Ops::deref(_q_value); }
+    bool ref() noexcept { return Ops::ref(_q_value); }
+    bool deref() noexcept { return Ops::deref(_q_value); }
 
-    static Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return Ops::isTestAndSetNative(); }
-    static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return Ops::isTestAndSetWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return Ops::isTestAndSetNative(); }
+    static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return Ops::isTestAndSetWaitFree(); }
 
-    bool testAndSetRelaxed(T expectedValue, T newValue) Q_DECL_NOTHROW
+    bool testAndSetRelaxed(T expectedValue, T newValue) noexcept
     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue); }
-    bool testAndSetAcquire(T expectedValue, T newValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(T expectedValue, T newValue) noexcept
     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue); }
-    bool testAndSetRelease(T expectedValue, T newValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(T expectedValue, T newValue) noexcept
     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue); }
-    bool testAndSetOrdered(T expectedValue, T newValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(T expectedValue, T newValue) noexcept
     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue); }
 
-    bool testAndSetRelaxed(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
+    bool testAndSetRelaxed(T expectedValue, T newValue, T &currentValue) noexcept
     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetAcquire(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(T expectedValue, T newValue, T &currentValue) noexcept
     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetRelease(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(T expectedValue, T newValue, T &currentValue) noexcept
     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetOrdered(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(T expectedValue, T newValue, T &currentValue) noexcept
     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue, &currentValue); }
 
-    static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return Ops::isFetchAndStoreNative(); }
-    static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndStoreWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return Ops::isFetchAndStoreNative(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return Ops::isFetchAndStoreWaitFree(); }
 
-    T fetchAndStoreRelaxed(T newValue) Q_DECL_NOTHROW
+    T fetchAndStoreRelaxed(T newValue) noexcept
     { return Ops::fetchAndStoreRelaxed(_q_value, newValue); }
-    T fetchAndStoreAcquire(T newValue) Q_DECL_NOTHROW
+    T fetchAndStoreAcquire(T newValue) noexcept
     { return Ops::fetchAndStoreAcquire(_q_value, newValue); }
-    T fetchAndStoreRelease(T newValue) Q_DECL_NOTHROW
+    T fetchAndStoreRelease(T newValue) noexcept
     { return Ops::fetchAndStoreRelease(_q_value, newValue); }
-    T fetchAndStoreOrdered(T newValue) Q_DECL_NOTHROW
+    T fetchAndStoreOrdered(T newValue) noexcept
     { return Ops::fetchAndStoreOrdered(_q_value, newValue); }
 
-    static Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return Ops::isFetchAndAddNative(); }
-    static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndAddWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return Ops::isFetchAndAddNative(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return Ops::isFetchAndAddWaitFree(); }
 
-    T fetchAndAddRelaxed(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelaxed(T valueToAdd) noexcept
     { return Ops::fetchAndAddRelaxed(_q_value, valueToAdd); }
-    T fetchAndAddAcquire(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddAcquire(T valueToAdd) noexcept
     { return Ops::fetchAndAddAcquire(_q_value, valueToAdd); }
-    T fetchAndAddRelease(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelease(T valueToAdd) noexcept
     { return Ops::fetchAndAddRelease(_q_value, valueToAdd); }
-    T fetchAndAddOrdered(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddOrdered(T valueToAdd) noexcept
     { return Ops::fetchAndAddOrdered(_q_value, valueToAdd); }
 
-    T fetchAndSubRelaxed(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubRelaxed(T valueToAdd) noexcept
     { return Ops::fetchAndSubRelaxed(_q_value, valueToAdd); }
-    T fetchAndSubAcquire(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubAcquire(T valueToAdd) noexcept
     { return Ops::fetchAndSubAcquire(_q_value, valueToAdd); }
-    T fetchAndSubRelease(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubRelease(T valueToAdd) noexcept
     { return Ops::fetchAndSubRelease(_q_value, valueToAdd); }
-    T fetchAndSubOrdered(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndSubOrdered(T valueToAdd) noexcept
     { return Ops::fetchAndSubOrdered(_q_value, valueToAdd); }
 
-    T fetchAndAndRelaxed(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndRelaxed(T valueToAdd) noexcept
     { return Ops::fetchAndAndRelaxed(_q_value, valueToAdd); }
-    T fetchAndAndAcquire(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndAcquire(T valueToAdd) noexcept
     { return Ops::fetchAndAndAcquire(_q_value, valueToAdd); }
-    T fetchAndAndRelease(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndRelease(T valueToAdd) noexcept
     { return Ops::fetchAndAndRelease(_q_value, valueToAdd); }
-    T fetchAndAndOrdered(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAndOrdered(T valueToAdd) noexcept
     { return Ops::fetchAndAndOrdered(_q_value, valueToAdd); }
 
-    T fetchAndOrRelaxed(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrRelaxed(T valueToAdd) noexcept
     { return Ops::fetchAndOrRelaxed(_q_value, valueToAdd); }
-    T fetchAndOrAcquire(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrAcquire(T valueToAdd) noexcept
     { return Ops::fetchAndOrAcquire(_q_value, valueToAdd); }
-    T fetchAndOrRelease(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrRelease(T valueToAdd) noexcept
     { return Ops::fetchAndOrRelease(_q_value, valueToAdd); }
-    T fetchAndOrOrdered(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndOrOrdered(T valueToAdd) noexcept
     { return Ops::fetchAndOrOrdered(_q_value, valueToAdd); }
 
-    T fetchAndXorRelaxed(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorRelaxed(T valueToAdd) noexcept
     { return Ops::fetchAndXorRelaxed(_q_value, valueToAdd); }
-    T fetchAndXorAcquire(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorAcquire(T valueToAdd) noexcept
     { return Ops::fetchAndXorAcquire(_q_value, valueToAdd); }
-    T fetchAndXorRelease(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorRelease(T valueToAdd) noexcept
     { return Ops::fetchAndXorRelease(_q_value, valueToAdd); }
-    T fetchAndXorOrdered(T valueToAdd) Q_DECL_NOTHROW
+    T fetchAndXorOrdered(T valueToAdd) noexcept
     { return Ops::fetchAndXorOrdered(_q_value, valueToAdd); }
 
-    T operator++() Q_DECL_NOTHROW
+    T operator++() noexcept
     { return fetchAndAddOrdered(1) + 1; }
-    T operator++(int) Q_DECL_NOTHROW
+    T operator++(int) noexcept
     { return fetchAndAddOrdered(1); }
-    T operator--() Q_DECL_NOTHROW
+    T operator--() noexcept
     { return fetchAndSubOrdered(1) - 1; }
-    T operator--(int) Q_DECL_NOTHROW
+    T operator--(int) noexcept
     { return fetchAndSubOrdered(1); }
 
-    T operator+=(T v) Q_DECL_NOTHROW
+    T operator+=(T v) noexcept
     { return fetchAndAddOrdered(v) + v; }
-    T operator-=(T v) Q_DECL_NOTHROW
+    T operator-=(T v) noexcept
     { return fetchAndSubOrdered(v) - v; }
-    T operator&=(T v) Q_DECL_NOTHROW
+    T operator&=(T v) noexcept
     { return fetchAndAndOrdered(v) & v; }
-    T operator|=(T v) Q_DECL_NOTHROW
+    T operator|=(T v) noexcept
     { return fetchAndOrOrdered(v) | v; }
-    T operator^=(T v) Q_DECL_NOTHROW
+    T operator^=(T v) noexcept
     { return fetchAndXorOrdered(v) ^ v; }
 
 
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     QBasicAtomicInteger() = default;
-    constexpr QBasicAtomicInteger(T value) Q_DECL_NOTHROW : _q_value(value) {}
+    constexpr QBasicAtomicInteger(T value) noexcept : _q_value(value) {}
     QBasicAtomicInteger(const QBasicAtomicInteger &) = delete;
     QBasicAtomicInteger &operator=(const QBasicAtomicInteger &) = delete;
     QBasicAtomicInteger &operator=(const QBasicAtomicInteger &) volatile = delete;
@@ -236,85 +236,85 @@ public:
 
     AtomicType _q_value;
 
-    Type load() const Q_DECL_NOTHROW { return Ops::load(_q_value); }
-    void store(Type newValue) Q_DECL_NOTHROW { Ops::store(_q_value, newValue); }
-    operator Type() const Q_DECL_NOTHROW { return loadAcquire(); }
-    Type operator=(Type newValue) Q_DECL_NOTHROW { storeRelease(newValue); return newValue; }
+    Type load() const noexcept { return Ops::load(_q_value); }
+    void store(Type newValue) noexcept { Ops::store(_q_value, newValue); }
+    operator Type() const noexcept { return loadAcquire(); }
+    Type operator=(Type newValue) noexcept { storeRelease(newValue); return newValue; }
 
     // Atomic API, implemented in qatomic_XXX.h
-    Type loadAcquire() const Q_DECL_NOTHROW { return Ops::loadAcquire(_q_value); }
-    void storeRelease(Type newValue) Q_DECL_NOTHROW { Ops::storeRelease(_q_value, newValue); }
+    Type loadAcquire() const noexcept { return Ops::loadAcquire(_q_value); }
+    void storeRelease(Type newValue) noexcept { Ops::storeRelease(_q_value, newValue); }
 
-    static Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return Ops::isTestAndSetNative(); }
-    static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return Ops::isTestAndSetWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept { return Ops::isTestAndSetNative(); }
+    static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept { return Ops::isTestAndSetWaitFree(); }
 
-    bool testAndSetRelaxed(Type expectedValue, Type newValue) Q_DECL_NOTHROW
+    bool testAndSetRelaxed(Type expectedValue, Type newValue) noexcept
     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue); }
-    bool testAndSetAcquire(Type expectedValue, Type newValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(Type expectedValue, Type newValue) noexcept
     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue); }
-    bool testAndSetRelease(Type expectedValue, Type newValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(Type expectedValue, Type newValue) noexcept
     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue); }
-    bool testAndSetOrdered(Type expectedValue, Type newValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(Type expectedValue, Type newValue) noexcept
     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue); }
 
-    bool testAndSetRelaxed(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
+    bool testAndSetRelaxed(Type expectedValue, Type newValue, Type &currentValue) noexcept
     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetAcquire(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(Type expectedValue, Type newValue, Type &currentValue) noexcept
     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetRelease(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(Type expectedValue, Type newValue, Type &currentValue) noexcept
     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue, &currentValue); }
-    bool testAndSetOrdered(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(Type expectedValue, Type newValue, Type &currentValue) noexcept
     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue, &currentValue); }
 
-    static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return Ops::isFetchAndStoreNative(); }
-    static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndStoreWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return Ops::isFetchAndStoreNative(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return Ops::isFetchAndStoreWaitFree(); }
 
-    Type fetchAndStoreRelaxed(Type newValue) Q_DECL_NOTHROW
+    Type fetchAndStoreRelaxed(Type newValue) noexcept
     { return Ops::fetchAndStoreRelaxed(_q_value, newValue); }
-    Type fetchAndStoreAcquire(Type newValue) Q_DECL_NOTHROW
+    Type fetchAndStoreAcquire(Type newValue) noexcept
     { return Ops::fetchAndStoreAcquire(_q_value, newValue); }
-    Type fetchAndStoreRelease(Type newValue) Q_DECL_NOTHROW
+    Type fetchAndStoreRelease(Type newValue) noexcept
     { return Ops::fetchAndStoreRelease(_q_value, newValue); }
-    Type fetchAndStoreOrdered(Type newValue) Q_DECL_NOTHROW
+    Type fetchAndStoreOrdered(Type newValue) noexcept
     { return Ops::fetchAndStoreOrdered(_q_value, newValue); }
 
-    static Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return Ops::isFetchAndAddNative(); }
-    static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndAddWaitFree(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return Ops::isFetchAndAddNative(); }
+    static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return Ops::isFetchAndAddWaitFree(); }
 
-    Type fetchAndAddRelaxed(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndAddRelaxed(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndAddRelaxed(_q_value, valueToAdd); }
-    Type fetchAndAddAcquire(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndAddAcquire(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndAddAcquire(_q_value, valueToAdd); }
-    Type fetchAndAddRelease(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndAddRelease(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndAddRelease(_q_value, valueToAdd); }
-    Type fetchAndAddOrdered(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndAddOrdered(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndAddOrdered(_q_value, valueToAdd); }
 
-    Type fetchAndSubRelaxed(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndSubRelaxed(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndSubRelaxed(_q_value, valueToAdd); }
-    Type fetchAndSubAcquire(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndSubAcquire(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndSubAcquire(_q_value, valueToAdd); }
-    Type fetchAndSubRelease(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndSubRelease(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndSubRelease(_q_value, valueToAdd); }
-    Type fetchAndSubOrdered(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type fetchAndSubOrdered(qptrdiff valueToAdd) noexcept
     { return Ops::fetchAndSubOrdered(_q_value, valueToAdd); }
 
-    Type operator++() Q_DECL_NOTHROW
+    Type operator++() noexcept
     { return fetchAndAddOrdered(1) + 1; }
-    Type operator++(int) Q_DECL_NOTHROW
+    Type operator++(int) noexcept
     { return fetchAndAddOrdered(1); }
-    Type operator--() Q_DECL_NOTHROW
+    Type operator--() noexcept
     { return fetchAndSubOrdered(1) - 1; }
-    Type operator--(int) Q_DECL_NOTHROW
+    Type operator--(int) noexcept
     { return fetchAndSubOrdered(1); }
-    Type operator+=(qptrdiff valueToAdd) Q_DECL_NOTHROW
+    Type operator+=(qptrdiff valueToAdd) noexcept
     { return fetchAndAddOrdered(valueToAdd) + valueToAdd; }
-    Type operator-=(qptrdiff valueToSub) Q_DECL_NOTHROW
+    Type operator-=(qptrdiff valueToSub) noexcept
     { return fetchAndSubOrdered(valueToSub) - valueToSub; }
 
 #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     QBasicAtomicPointer() = default;
-    constexpr QBasicAtomicPointer(Type value) Q_DECL_NOTHROW : _q_value(value) {}
+    constexpr QBasicAtomicPointer(Type value) noexcept : _q_value(value) {}
     QBasicAtomicPointer(const QBasicAtomicPointer &) = delete;
     QBasicAtomicPointer &operator=(const QBasicAtomicPointer &) = delete;
     QBasicAtomicPointer &operator=(const QBasicAtomicPointer &) volatile = delete;
diff --git a/src/corelib/thread/qfutex_p.h b/src/corelib/thread/qfutex_p.h
index 483664c783..136f6bca8c 100644
--- a/src/corelib/thread/qfutex_p.h
+++ b/src/corelib/thread/qfutex_p.h
@@ -85,7 +85,7 @@ QT_BEGIN_NAMESPACE
 namespace QtLinuxFutex {
     constexpr inline bool futexAvailable() { return true; }
     inline int _q_futex(int *addr, int op, int val, quintptr val2 = 0,
-                        int *addr2 = nullptr, int val3 = 0) Q_DECL_NOTHROW
+                        int *addr2 = nullptr, int val3 = 0) noexcept
     {
         // we use __NR_futex because some libcs (like Android's bionic) don't
         // provide SYS_futex etc.
diff --git a/src/corelib/thread/qgenericatomic.h b/src/corelib/thread/qgenericatomic.h
index 89c4fe9a11..f8333e7de6 100644
--- a/src/corelib/thread/qgenericatomic.h
+++ b/src/corelib/thread/qgenericatomic.h
@@ -72,32 +72,32 @@ template <typename BaseClass> struct QGenericAtomicOps
 {
     template <typename T> struct AtomicType { typedef T Type; typedef T *PointerType; };
 
-    template <typename T> static void acquireMemoryFence(const T &_q_value) Q_DECL_NOTHROW
+    template <typename T> static void acquireMemoryFence(const T &_q_value) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
     }
-    template <typename T> static void releaseMemoryFence(const T &_q_value) Q_DECL_NOTHROW
+    template <typename T> static void releaseMemoryFence(const T &_q_value) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
     }
-    template <typename T> static void orderedMemoryFence(const T &) Q_DECL_NOTHROW
+    template <typename T> static void orderedMemoryFence(const T &) noexcept
     {
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T load(const T &_q_value) Q_DECL_NOTHROW
+    T load(const T &_q_value) noexcept
     {
         return _q_value;
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    void store(T &_q_value, X newValue) Q_DECL_NOTHROW
+    void store(T &_q_value, X newValue) noexcept
     {
         _q_value = newValue;
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T loadAcquire(const T &_q_value) Q_DECL_NOTHROW
+    T loadAcquire(const T &_q_value) noexcept
     {
         T tmp = *static_cast<const volatile T *>(&_q_value);
         BaseClass::acquireMemoryFence(_q_value);
@@ -105,24 +105,24 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    void storeRelease(T &_q_value, X newValue) Q_DECL_NOTHROW
+    void storeRelease(T &_q_value, X newValue) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         *static_cast<volatile T *>(&_q_value) = newValue;
     }
 
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingNative() noexcept
     { return BaseClass::isFetchAndAddNative(); }
-    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW
+    static inline Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() noexcept
     { return BaseClass::isFetchAndAddWaitFree(); }
     template <typename T> static Q_ALWAYS_INLINE
-    bool ref(T &_q_value) Q_DECL_NOTHROW
+    bool ref(T &_q_value) noexcept
     {
         return BaseClass::fetchAndAddRelaxed(_q_value, 1) != T(-1);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    bool deref(T &_q_value) Q_DECL_NOTHROW
+    bool deref(T &_q_value) noexcept
     {
          return BaseClass::fetchAndAddRelaxed(_q_value, -1) != 1;
     }
@@ -130,16 +130,16 @@ template <typename BaseClass> struct QGenericAtomicOps
 #if 0
     // These functions have no default implementation
     // Archictectures must implement them
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW;
-    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW;
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetNative() noexcept;
+    static inline Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() noexcept;
     template <typename T, typename X> static inline
-    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue) Q_DECL_NOTHROW;
+    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue) noexcept;
     template <typename T, typename X> static inline
-    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue, X *currentValue) Q_DECL_NOTHROW;
+    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept;
 #endif
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue) noexcept
     {
         bool tmp = BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
         BaseClass::acquireMemoryFence(_q_value);
@@ -147,21 +147,21 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue, X *currentValue) Q_DECL_NOTHROW
+    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
     {
         bool tmp = BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
         BaseClass::acquireMemoryFence(_q_value);
@@ -169,24 +169,24 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue, X *currentValue) Q_DECL_NOTHROW
+    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue, X *currentValue) Q_DECL_NOTHROW
+    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
     }
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return false; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreNative() noexcept { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() noexcept { return false; }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreRelaxed(T &_q_value, X newValue) Q_DECL_NOTHROW
+    T fetchAndStoreRelaxed(T &_q_value, X newValue) noexcept
     {
         // implement fetchAndStore on top of testAndSet
         Q_FOREVER {
@@ -197,7 +197,7 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreAcquire(T &_q_value, X newValue) Q_DECL_NOTHROW
+    T fetchAndStoreAcquire(T &_q_value, X newValue) noexcept
     {
         T tmp = BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
         BaseClass::acquireMemoryFence(_q_value);
@@ -205,23 +205,23 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreRelease(T &_q_value, X newValue) Q_DECL_NOTHROW
+    T fetchAndStoreRelease(T &_q_value, X newValue) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
     }
 
     template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreOrdered(T &_q_value, X newValue) Q_DECL_NOTHROW
+    T fetchAndStoreOrdered(T &_q_value, X newValue) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
     }
 
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return false; }
-    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddNative() noexcept { return false; }
+    static inline Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() noexcept { return false; }
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         // implement fetchAndAdd on top of testAndSet
         Q_FOREVER {
@@ -232,7 +232,7 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         T tmp = BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
         BaseClass::acquireMemoryFence(_q_value);
@@ -240,14 +240,14 @@ template <typename BaseClass> struct QGenericAtomicOps
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) Q_DECL_NOTHROW
+    T fetchAndAddOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
@@ -256,7 +256,7 @@ template <typename BaseClass> struct QGenericAtomicOps
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_MSVC(4146)   // unary minus operator applied to unsigned type, result still unsigned
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) Q_DECL_NOTHROW
+    T fetchAndSubRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
     {
         // implement fetchAndSub on top of fetchAndAdd
         return fetchAndAddRelaxed(_q_value, -operand);
@@ -264,7 +264,7 @@ QT_WARNING_DISABLE_MSVC(4146)   // unary minus operator applied to unsigned type
 QT_WARNING_POP
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) Q_DECL_NOTHROW
+    T fetchAndSubAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
     {
         T tmp = BaseClass::fetchAndSubRelaxed(_q_value, operand);
         BaseClass::acquireMemoryFence(_q_value);
@@ -272,21 +272,21 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) Q_DECL_NOTHROW
+    T fetchAndSubRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndSubRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) Q_DECL_NOTHROW
+    T fetchAndSubOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndSubRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndAndRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         // implement fetchAndAnd on top of testAndSet
         T tmp = BaseClass::load(_q_value);
@@ -297,7 +297,7 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndAndAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         T tmp = BaseClass::fetchAndAndRelaxed(_q_value, operand);
         BaseClass::acquireMemoryFence(_q_value);
@@ -305,21 +305,21 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndAndRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndAndRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndAndOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndAndRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndOrRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         // implement fetchAndOr on top of testAndSet
         T tmp = BaseClass::load(_q_value);
@@ -330,7 +330,7 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndOrAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         T tmp = BaseClass::fetchAndOrRelaxed(_q_value, operand);
         BaseClass::acquireMemoryFence(_q_value);
@@ -338,21 +338,21 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndOrRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndOrRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndOrOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndOrRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndXorRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         // implement fetchAndXor on top of testAndSet
         T tmp = BaseClass::load(_q_value);
@@ -363,7 +363,7 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndXorAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         T tmp = BaseClass::fetchAndXorRelaxed(_q_value, operand);
         BaseClass::acquireMemoryFence(_q_value);
@@ -371,14 +371,14 @@ QT_WARNING_POP
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndXorRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::releaseMemoryFence(_q_value);
         return BaseClass::fetchAndXorRelaxed(_q_value, operand);
     }
 
     template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) Q_DECL_NOTHROW
+    T fetchAndXorOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
     {
         BaseClass::orderedMemoryFence(_q_value);
         return BaseClass::fetchAndXorRelaxed(_q_value, operand);
diff --git a/src/corelib/thread/qmutex.cpp b/src/corelib/thread/qmutex.cpp
index 3881ac017e..4f55e50fe5 100644
--- a/src/corelib/thread/qmutex.cpp
+++ b/src/corelib/thread/qmutex.cpp
@@ -82,7 +82,7 @@ public:
     QMutex mutex;
 
     bool lock(int timeout) QT_MUTEX_LOCK_NOEXCEPT;
-    void unlock() Q_DECL_NOTHROW;
+    void unlock() noexcept;
 };
 
 /*
@@ -329,7 +329,7 @@ bool QMutex::tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
 
     \sa lock()
 */
-void QMutex::unlock() Q_DECL_NOTHROW
+void QMutex::unlock() noexcept
 {
     QMutexData *current;
     if (fastTryUnlock(current))
@@ -348,7 +348,7 @@ void QMutex::unlock() Q_DECL_NOTHROW
     Returns \c true if the mutex is recursive.
 */
 
-bool QBasicMutex::isRecursive() Q_DECL_NOTHROW
+bool QBasicMutex::isRecursive() noexcept
 {
     return QT_PREPEND_NAMESPACE(isRecursive)(d_ptr.loadAcquire());
 }
@@ -358,7 +358,7 @@ bool QBasicMutex::isRecursive() Q_DECL_NOTHROW
 
     Returns \c true if the mutex is recursive.
 */
-bool QBasicMutex::isRecursive() const Q_DECL_NOTHROW
+bool QBasicMutex::isRecursive() const noexcept
 {
     return QT_PREPEND_NAMESPACE(isRecursive)(d_ptr.loadAcquire());
 }
@@ -600,7 +600,7 @@ bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
 /*!
     \internal
 */
-void QBasicMutex::unlockInternal() Q_DECL_NOTHROW
+void QBasicMutex::unlockInternal() noexcept
 {
     QMutexData *copy = d_ptr.loadAcquire();
     Q_ASSERT(copy); //we must be locked
@@ -675,7 +675,7 @@ void QMutexPrivate::release()
 }
 
 // atomically subtract "value" to the waiters, and remove the QMutexPrivate::BigNumber flag
-void QMutexPrivate::derefWaiters(int value) Q_DECL_NOTHROW
+void QMutexPrivate::derefWaiters(int value) noexcept
 {
     int old_waiters;
     int new_waiters;
@@ -716,7 +716,7 @@ inline bool QRecursiveMutexPrivate::lock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
 /*!
    \internal
  */
-inline void QRecursiveMutexPrivate::unlock() Q_DECL_NOTHROW
+inline void QRecursiveMutexPrivate::unlock() noexcept
 {
     if (count > 0) {
         count--;
diff --git a/src/corelib/thread/qmutex.h b/src/corelib/thread/qmutex.h
index 837355a602..d7796092d1 100644
--- a/src/corelib/thread/qmutex.h
+++ b/src/corelib/thread/qmutex.h
@@ -57,7 +57,7 @@ QT_BEGIN_NAMESPACE
 #if QT_CONFIG(thread) || defined(Q_CLANG_QDOC)
 
 #ifdef Q_OS_LINUX
-# define QT_MUTEX_LOCK_NOEXCEPT Q_DECL_NOTHROW
+# define QT_MUTEX_LOCK_NOEXCEPT noexcept
 #else
 # define QT_MUTEX_LOCK_NOEXCEPT
 #endif
@@ -80,39 +80,39 @@ public:
     }
 
     // BasicLockable concept
-    inline void unlock() Q_DECL_NOTHROW {
+    inline void unlock() noexcept {
         Q_ASSERT(d_ptr.load()); //mutex must be locked
         if (!fastTryUnlock())
             unlockInternal();
     }
 
-    bool tryLock() Q_DECL_NOTHROW {
+    bool tryLock() noexcept {
         return fastTryLock();
     }
 
     // Lockable concept
-    bool try_lock() Q_DECL_NOTHROW { return tryLock(); }
+    bool try_lock() noexcept { return tryLock(); }
 
-    bool isRecursive() Q_DECL_NOTHROW; //### Qt6: remove me
-    bool isRecursive() const Q_DECL_NOTHROW;
+    bool isRecursive() noexcept; //### Qt6: remove me
+    bool isRecursive() const noexcept;
 
 private:
-    inline bool fastTryLock() Q_DECL_NOTHROW {
+    inline bool fastTryLock() noexcept {
         return d_ptr.testAndSetAcquire(nullptr, dummyLocked());
     }
-    inline bool fastTryUnlock() Q_DECL_NOTHROW {
+    inline bool fastTryUnlock() noexcept {
         return d_ptr.testAndSetRelease(dummyLocked(), nullptr);
     }
-    inline bool fastTryLock(QMutexData *&current) Q_DECL_NOTHROW {
+    inline bool fastTryLock(QMutexData *&current) noexcept {
         return d_ptr.testAndSetAcquire(nullptr, dummyLocked(), current);
     }
-    inline bool fastTryUnlock(QMutexData *&current) Q_DECL_NOTHROW {
+    inline bool fastTryUnlock(QMutexData *&current) noexcept {
         return d_ptr.testAndSetRelease(dummyLocked(), nullptr, current);
     }
 
     void lockInternal() QT_MUTEX_LOCK_NOEXCEPT;
     bool lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT;
-    void unlockInternal() Q_DECL_NOTHROW;
+    void unlockInternal() noexcept;
 
     QBasicAtomicPointer<QMutexData> d_ptr;
     static inline QMutexData *dummyLocked() {
@@ -134,7 +134,7 @@ public:
     void lock() QT_MUTEX_LOCK_NOEXCEPT;
     bool tryLock(int timeout = 0) QT_MUTEX_LOCK_NOEXCEPT;
     // BasicLockable concept
-    void unlock() Q_DECL_NOTHROW;
+    void unlock() noexcept;
 
     // Lockable concept
     bool try_lock() QT_MUTEX_LOCK_NOEXCEPT { return tryLock(); }
@@ -158,7 +158,7 @@ public:
     }
 #endif
 
-    bool isRecursive() const Q_DECL_NOTHROW
+    bool isRecursive() const noexcept
     { return QBasicMutex::isRecursive(); }
 
 private:
@@ -212,7 +212,7 @@ public:
 #endif
     inline ~QMutexLocker() { unlock(); }
 
-    inline void unlock() Q_DECL_NOTHROW
+    inline void unlock() noexcept
     {
         if ((val & quintptr(1u)) == quintptr(1u)) {
             val &= ~quintptr(1u);
@@ -257,24 +257,24 @@ class Q_CORE_EXPORT QMutex
 public:
     enum RecursionMode { NonRecursive, Recursive };
 
-    inline Q_DECL_CONSTEXPR explicit QMutex(RecursionMode = NonRecursive) Q_DECL_NOTHROW { }
+    inline Q_DECL_CONSTEXPR explicit QMutex(RecursionMode = NonRecursive) noexcept { }
 
-    inline void lock() Q_DECL_NOTHROW {}
-    inline bool tryLock(int timeout = 0) Q_DECL_NOTHROW { Q_UNUSED(timeout); return true; }
-    inline bool try_lock() Q_DECL_NOTHROW { return true; }
-    inline void unlock() Q_DECL_NOTHROW {}
-    inline bool isRecursive() const Q_DECL_NOTHROW { return true; }
+    inline void lock() noexcept {}
+    inline bool tryLock(int timeout = 0) noexcept { Q_UNUSED(timeout); return true; }
+    inline bool try_lock() noexcept { return true; }
+    inline void unlock() noexcept {}
+    inline bool isRecursive() const noexcept { return true; }
 
 #if QT_HAS_INCLUDE(<chrono>)
     template <class Rep, class Period>
-    inline bool try_lock_for(std::chrono::duration<Rep, Period> duration) Q_DECL_NOTHROW
+    inline bool try_lock_for(std::chrono::duration<Rep, Period> duration) noexcept
     {
         Q_UNUSED(duration);
         return true;
     }
 
     template<class Clock, class Duration>
-    inline bool try_lock_until(std::chrono::time_point<Clock, Duration> timePoint) Q_DECL_NOTHROW
+    inline bool try_lock_until(std::chrono::time_point<Clock, Duration> timePoint) noexcept
     {
         Q_UNUSED(timePoint);
         return true;
@@ -288,12 +288,12 @@ private:
 class Q_CORE_EXPORT QMutexLocker
 {
 public:
-    inline explicit QMutexLocker(QMutex *) Q_DECL_NOTHROW {}
-    inline ~QMutexLocker() Q_DECL_NOTHROW {}
+    inline explicit QMutexLocker(QMutex *) noexcept {}
+    inline ~QMutexLocker() noexcept {}
 
-    inline void unlock() Q_DECL_NOTHROW {}
-    void relock() Q_DECL_NOTHROW {}
-    inline QMutex *mutex() const Q_DECL_NOTHROW { return nullptr; }
+    inline void unlock() noexcept {}
+    void relock() noexcept {}
+    inline QMutex *mutex() const noexcept { return nullptr; }
 
 private:
     Q_DISABLE_COPY(QMutexLocker)
diff --git a/src/corelib/thread/qmutex_linux.cpp b/src/corelib/thread/qmutex_linux.cpp
index 507e72cb76..b006ff1033 100644
--- a/src/corelib/thread/qmutex_linux.cpp
+++ b/src/corelib/thread/qmutex_linux.cpp
@@ -106,7 +106,7 @@ static inline QMutexData *dummyFutexValue()
 }
 
 template <bool IsTimed> static inline
-bool lockInternal_helper(QBasicAtomicPointer<QMutexData> &d_ptr, int timeout = -1, QElapsedTimer *elapsedTimer = 0) Q_DECL_NOTHROW
+bool lockInternal_helper(QBasicAtomicPointer<QMutexData> &d_ptr, int timeout = -1, QElapsedTimer *elapsedTimer = 0) noexcept
 {
     if (!IsTimed)
         timeout = -1;
@@ -153,13 +153,13 @@ bool lockInternal_helper(QBasicAtomicPointer<QMutexData> &d_ptr, int timeout = -
     return true;
 }
 
-void QBasicMutex::lockInternal() Q_DECL_NOTHROW
+void QBasicMutex::lockInternal() noexcept
 {
     Q_ASSERT(!isRecursive());
     lockInternal_helper<false>(d_ptr);
 }
 
-bool QBasicMutex::lockInternal(int timeout) Q_DECL_NOTHROW
+bool QBasicMutex::lockInternal(int timeout) noexcept
 {
     Q_ASSERT(!isRecursive());
     QElapsedTimer elapsedTimer;
@@ -167,7 +167,7 @@ bool QBasicMutex::lockInternal(int timeout) Q_DECL_NOTHROW
     return lockInternal_helper<true>(d_ptr, timeout, &elapsedTimer);
 }
 
-void QBasicMutex::unlockInternal() Q_DECL_NOTHROW
+void QBasicMutex::unlockInternal() noexcept
 {
     QMutexData *d = d_ptr.load();
     Q_ASSERT(d); //we must be locked
diff --git a/src/corelib/thread/qmutex_mac.cpp b/src/corelib/thread/qmutex_mac.cpp
index 9a8d9bc750..923f89f697 100644
--- a/src/corelib/thread/qmutex_mac.cpp
+++ b/src/corelib/thread/qmutex_mac.cpp
@@ -79,7 +79,7 @@ bool QMutexPrivate::wait(int timeout)
     return (r == KERN_SUCCESS);
 }
 
-void QMutexPrivate::wakeUp() Q_DECL_NOTHROW
+void QMutexPrivate::wakeUp() noexcept
 {
     semaphore_signal(mach_semaphore);
 }
diff --git a/src/corelib/thread/qmutex_p.h b/src/corelib/thread/qmutex_p.h
index ec9bfc1152..5025f836b9 100644
--- a/src/corelib/thread/qmutex_p.h
+++ b/src/corelib/thread/qmutex_p.h
@@ -92,7 +92,7 @@ public:
     QMutexPrivate();
 
     bool wait(int timeout = -1);
-    void wakeUp() Q_DECL_NOTHROW;
+    void wakeUp() noexcept;
 
     // Control the lifetime of the privates
     QAtomicInt refCount;
@@ -125,7 +125,7 @@ public:
                                     when the mutex is unlocked.
                                   */
     enum { BigNumber = 0x100000 }; //Must be bigger than the possible number of waiters (number of threads)
-    void derefWaiters(int value) Q_DECL_NOTHROW;
+    void derefWaiters(int value) noexcept;
 
     //platform specific stuff
 #if defined(Q_OS_MAC)
diff --git a/src/corelib/thread/qmutex_unix.cpp b/src/corelib/thread/qmutex_unix.cpp
index 3ee24a292c..a92ac4f943 100644
--- a/src/corelib/thread/qmutex_unix.cpp
+++ b/src/corelib/thread/qmutex_unix.cpp
@@ -99,7 +99,7 @@ bool QMutexPrivate::wait(int timeout)
     return true;
 }
 
-void QMutexPrivate::wakeUp() Q_DECL_NOTHROW
+void QMutexPrivate::wakeUp() noexcept
 {
     report_error(sem_post(&semaphore), "QMutex::unlock", "sem_post");
 }
@@ -146,7 +146,7 @@ bool QMutexPrivate::wait(int timeout)
     return ret;
 }
 
-void QMutexPrivate::wakeUp() Q_DECL_NOTHROW
+void QMutexPrivate::wakeUp() noexcept
 {
     report_error(pthread_mutex_lock(&mutex), "QMutex::unlock", "mutex lock");
     wakeup = true;
diff --git a/src/corelib/thread/qmutex_win.cpp b/src/corelib/thread/qmutex_win.cpp
index 3c314a4c0c..e221bc89cb 100644
--- a/src/corelib/thread/qmutex_win.cpp
+++ b/src/corelib/thread/qmutex_win.cpp
@@ -64,7 +64,7 @@ bool QMutexPrivate::wait(int timeout)
     return (WaitForSingleObjectEx(event, timeout < 0 ? INFINITE : timeout, FALSE) == WAIT_OBJECT_0);
 }
 
-void QMutexPrivate::wakeUp() Q_DECL_NOTHROW
+void QMutexPrivate::wakeUp() noexcept
 { SetEvent(event); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/thread/qorderedmutexlocker_p.h b/src/corelib/thread/qorderedmutexlocker_p.h
index ded102d32d..e0a67388d4 100644
--- a/src/corelib/thread/qorderedmutexlocker_p.h
+++ b/src/corelib/thread/qorderedmutexlocker_p.h
@@ -58,6 +58,8 @@
 
 QT_BEGIN_NAMESPACE
 
+#if QT_CONFIG(thread)
+
 /*
   Locks 2 mutexes in a defined order, avoiding a recursive lock if
   we're trying to lock the same mutex twice.
@@ -65,9 +67,9 @@ QT_BEGIN_NAMESPACE
 class QOrderedMutexLocker
 {
 public:
-    QOrderedMutexLocker(QMutex *m1, QMutex *m2)
-        : mtx1((m1 == m2) ? m1 : (std::less<QMutex *>()(m1, m2) ? m1 : m2)),
-          mtx2((m1 == m2) ?  0 : (std::less<QMutex *>()(m1, m2) ? m2 : m1)),
+    QOrderedMutexLocker(QBasicMutex *m1, QBasicMutex *m2)
+        : mtx1((m1 == m2) ? m1 : (std::less<QBasicMutex *>()(m1, m2) ? m1 : m2)),
+          mtx2((m1 == m2) ?  0 : (std::less<QBasicMutex *>()(m1, m2) ? m2 : m1)),
           locked(false)
     {
         relock();
@@ -95,12 +97,12 @@ public:
         }
     }
 
-    static bool relock(QMutex *mtx1, QMutex *mtx2)
+    static bool relock(QBasicMutex *mtx1, QBasicMutex *mtx2)
     {
         // mtx1 is already locked, mtx2 not... do we need to unlock and relock?
         if (mtx1 == mtx2)
             return false;
-        if (std::less<QMutex *>()(mtx1, mtx2)) {
+        if (std::less<QBasicMutex *>()(mtx1, mtx2)) {
             mtx2->lock();
             return true;
         }
@@ -113,10 +115,58 @@ public:
     }
 
 private:
-    QMutex *mtx1, *mtx2;
+    QBasicMutex *mtx1, *mtx2;
     bool locked;
 };
 
+class QBasicMutexLocker
+{
+public:
+    inline explicit QBasicMutexLocker(QBasicMutex *m) QT_MUTEX_LOCK_NOEXCEPT
+        : m(m), isLocked(true)
+    {
+        m->lock();
+    }
+    inline ~QBasicMutexLocker() { if (isLocked) unlock(); }
+
+    inline void unlock() noexcept
+    {
+        isLocked = false;
+        m->unlock();
+    }
+
+    inline void relock() QT_MUTEX_LOCK_NOEXCEPT
+    {
+        isLocked = true;
+        m->lock();
+    }
+
+private:
+    Q_DISABLE_COPY(QBasicMutexLocker)
+
+    QBasicMutex *m;
+    bool isLocked;
+};
+
+#else
+
+class QOrderedMutexLocker
+{
+public:
+    QOrderedMutexLocker(QBasicMutex *, QBasicMutex *) {}
+    ~QOrderedMutexLocker() {}
+
+    void relock() {}
+    void unlock() {}
+
+    static bool relock(QBasicMutex *, QBasicMutex *) {}
+};
+
+using QBasicMutexLocker = QMutexLocker;
+
+#endif
+
+
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h
index 65fa76fd6d..139fde9214 100644
--- a/src/corelib/thread/qreadwritelock.h
+++ b/src/corelib/thread/qreadwritelock.h
@@ -180,18 +180,18 @@ class Q_CORE_EXPORT QReadWriteLock
 {
 public:
     enum RecursionMode { NonRecursive, Recursive };
-    inline explicit QReadWriteLock(RecursionMode = NonRecursive) Q_DECL_NOTHROW { }
+    inline explicit QReadWriteLock(RecursionMode = NonRecursive) noexcept { }
     inline ~QReadWriteLock() { }
 
-    static inline void lockForRead() Q_DECL_NOTHROW { }
-    static inline bool tryLockForRead() Q_DECL_NOTHROW { return true; }
-    static inline bool tryLockForRead(int timeout) Q_DECL_NOTHROW { Q_UNUSED(timeout); return true; }
+    static inline void lockForRead() noexcept { }
+    static inline bool tryLockForRead() noexcept { return true; }
+    static inline bool tryLockForRead(int timeout) noexcept { Q_UNUSED(timeout); return true; }
 
-    static inline void lockForWrite() Q_DECL_NOTHROW { }
-    static inline bool tryLockForWrite() Q_DECL_NOTHROW { return true; }
-    static inline bool tryLockForWrite(int timeout) Q_DECL_NOTHROW { Q_UNUSED(timeout); return true; }
+    static inline void lockForWrite() noexcept { }
+    static inline bool tryLockForWrite() noexcept { return true; }
+    static inline bool tryLockForWrite(int timeout) noexcept { Q_UNUSED(timeout); return true; }
 
-    static inline void unlock() Q_DECL_NOTHROW { }
+    static inline void unlock() noexcept { }
 
 private:
     Q_DISABLE_COPY(QReadWriteLock)
@@ -200,12 +200,12 @@ private:
 class Q_CORE_EXPORT QReadLocker
 {
 public:
-    inline QReadLocker(QReadWriteLock *) Q_DECL_NOTHROW { }
-    inline ~QReadLocker() Q_DECL_NOTHROW { }
+    inline QReadLocker(QReadWriteLock *) noexcept { }
+    inline ~QReadLocker() noexcept { }
 
-    static inline void unlock() Q_DECL_NOTHROW { }
-    static inline void relock() Q_DECL_NOTHROW { }
-    static inline QReadWriteLock *readWriteLock() Q_DECL_NOTHROW { return nullptr; }
+    static inline void unlock() noexcept { }
+    static inline void relock() noexcept { }
+    static inline QReadWriteLock *readWriteLock() noexcept { return nullptr; }
 
 private:
     Q_DISABLE_COPY(QReadLocker)
@@ -214,12 +214,12 @@ private:
 class Q_CORE_EXPORT QWriteLocker
 {
 public:
-    inline explicit QWriteLocker(QReadWriteLock *) Q_DECL_NOTHROW { }
-    inline ~QWriteLocker() Q_DECL_NOTHROW { }
+    inline explicit QWriteLocker(QReadWriteLock *) noexcept { }
+    inline ~QWriteLocker() noexcept { }
 
-    static inline void unlock() Q_DECL_NOTHROW { }
-    static inline void relock() Q_DECL_NOTHROW { }
-    static inline QReadWriteLock *readWriteLock() Q_DECL_NOTHROW { return nullptr; }
+    static inline void unlock() noexcept { }
+    static inline void relock() noexcept { }
+    static inline QReadWriteLock *readWriteLock() noexcept { return nullptr; }
 
 private:
     Q_DISABLE_COPY(QWriteLocker)
diff --git a/src/corelib/thread/qresultstore.h b/src/corelib/thread/qresultstore.h
index 1f29e8d187..7a65089396 100644
--- a/src/corelib/thread/qresultstore.h
+++ b/src/corelib/thread/qresultstore.h
@@ -142,7 +142,7 @@ public:
     template <typename T>
     int addResult(int index, const T *result)
     {
-        if (result == 0)
+        if (result == nullptr)
             return addResult(index, static_cast<void *>(nullptr));
         else
             return addResult(index, static_cast<void *>(new T(*result)));
@@ -158,7 +158,7 @@ public:
     int addResults(int index, const QVector<T> *results, int totalCount)
     {
         if (m_filterMode == true && results->count() != totalCount && 0 == results->count())
-            return addResults(index, 0, 0, totalCount);
+            return addResults(index, nullptr, 0, totalCount);
         else
             return addResults(index, new QVector<T>(*results), results->count(), totalCount);
     }
diff --git a/src/corelib/thread/qsemaphore.h b/src/corelib/thread/qsemaphore.h
index b830ff1bfd..58c12997ad 100644
--- a/src/corelib/thread/qsemaphore.h
+++ b/src/corelib/thread/qsemaphore.h
@@ -75,14 +75,14 @@ class QSemaphoreReleaser
 {
 public:
     QSemaphoreReleaser() = default;
-    explicit QSemaphoreReleaser(QSemaphore &sem, int n = 1) Q_DECL_NOTHROW
+    explicit QSemaphoreReleaser(QSemaphore &sem, int n = 1) noexcept
         : m_sem(&sem), m_n(n) {}
-    explicit QSemaphoreReleaser(QSemaphore *sem, int n = 1) Q_DECL_NOTHROW
+    explicit QSemaphoreReleaser(QSemaphore *sem, int n = 1) noexcept
         : m_sem(sem), m_n(n) {}
-    QSemaphoreReleaser(QSemaphoreReleaser &&other) Q_DECL_NOTHROW
+    QSemaphoreReleaser(QSemaphoreReleaser &&other) noexcept
         : m_sem(other.m_sem), m_n(other.m_n)
     { other.m_sem = nullptr; }
-    QSemaphoreReleaser &operator=(QSemaphoreReleaser &&other) Q_DECL_NOTHROW
+    QSemaphoreReleaser &operator=(QSemaphoreReleaser &&other) noexcept
     { QSemaphoreReleaser moved(std::move(other)); swap(moved); return *this; }
 
     ~QSemaphoreReleaser()
@@ -91,16 +91,16 @@ public:
             m_sem->release(m_n);
     }
 
-    void swap(QSemaphoreReleaser &other) Q_DECL_NOTHROW
+    void swap(QSemaphoreReleaser &other) noexcept
     {
         qSwap(m_sem, other.m_sem);
         qSwap(m_n, other.m_n);
     }
 
-    QSemaphore *semaphore() const Q_DECL_NOTHROW
+    QSemaphore *semaphore() const noexcept
     { return m_sem; }
 
-    QSemaphore *cancel() Q_DECL_NOTHROW
+    QSemaphore *cancel() noexcept
     {
         QSemaphore *old = m_sem;
         m_sem = nullptr;
diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp
index 9f60de1f87..b9b9f3e354 100644
--- a/src/corelib/thread/qthread.cpp
+++ b/src/corelib/thread/qthread.cpp
@@ -839,7 +839,7 @@ bool QThread::event(QEvent* event)
     return QObject::event(event);
 }
 
-Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
+Qt::HANDLE QThread::currentThreadId() noexcept
 {
     return Qt::HANDLE(currentThread());
 }
@@ -849,7 +849,7 @@ QThread *QThread::currentThread()
     return QThreadData::current()->thread;
 }
 
-int QThread::idealThreadCount() Q_DECL_NOTHROW
+int QThread::idealThreadCount() noexcept
 {
     return 1;
 }
diff --git a/src/corelib/thread/qthread.h b/src/corelib/thread/qthread.h
index b6c5bf47d0..c7a6dc8f1a 100644
--- a/src/corelib/thread/qthread.h
+++ b/src/corelib/thread/qthread.h
@@ -70,9 +70,9 @@ class Q_CORE_EXPORT QThread : public QObject
 {
     Q_OBJECT
 public:
-    static Qt::HANDLE currentThreadId() Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
+    static Qt::HANDLE currentThreadId() noexcept Q_DECL_PURE_FUNCTION;
     static QThread *currentThread();
-    static int idealThreadCount() Q_DECL_NOTHROW;
+    static int idealThreadCount() noexcept;
     static void yieldCurrentThread();
 
     explicit QThread(QObject *parent = nullptr);
@@ -209,7 +209,6 @@ struct Callable
     {
     }
 
-#if defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
     // Apply the same semantics of a lambda closure type w.r.t. the special
     // member functions, if possible: delete the copy assignment operator,
     // bring back all the others as per the RO5 (cf. §8.1.5.1/11 [expr.prim.lambda.closure])
@@ -218,7 +217,6 @@ struct Callable
     Callable(Callable &&) = default;
     Callable &operator=(const Callable &) = delete;
     Callable &operator=(Callable &&) = default;
-#endif
 
     void operator()()
     {
diff --git a/src/corelib/thread/qthread_p.h b/src/corelib/thread/qthread_p.h
index 7d9442ab79..209225de98 100644
--- a/src/corelib/thread/qthread_p.h
+++ b/src/corelib/thread/qthread_p.h
@@ -89,7 +89,7 @@ public:
     QEvent *event;
     int priority;
     inline QPostEvent()
-        : receiver(0), event(0), priority(0)
+        : receiver(nullptr), event(nullptr), priority(0)
     { }
     inline QPostEvent(QObject *r, QEvent *e, int p)
         : receiver(r), event(e), priority(p)
@@ -148,7 +148,7 @@ private:
 class Q_CORE_EXPORT QDaemonThread : public QThread
 {
 public:
-    QDaemonThread(QObject *parent = 0);
+    QDaemonThread(QObject *parent = nullptr);
     ~QDaemonThread();
 };
 
@@ -157,7 +157,7 @@ class QThreadPrivate : public QObjectPrivate
     Q_DECLARE_PUBLIC(QThread)
 
 public:
-    QThreadPrivate(QThreadData *d = 0);
+    QThreadPrivate(QThreadData *d = nullptr);
     ~QThreadPrivate();
 
     void setPriority(QThread::Priority prio);
@@ -187,8 +187,8 @@ public:
 #endif // Q_OS_UNIX
 
 #ifdef Q_OS_WIN
-    static unsigned int __stdcall start(void *) Q_DECL_NOEXCEPT;
-    static void finish(void *, bool lockAnyway=true) Q_DECL_NOEXCEPT;
+    static unsigned int __stdcall start(void *) noexcept;
+    static void finish(void *, bool lockAnyway=true) noexcept;
 
     Qt::HANDLE handle;
     unsigned int id;
@@ -248,7 +248,7 @@ public:
 #endif
     static void clearCurrentThreadData();
     static QThreadData *get2(QThread *thread)
-    { Q_ASSERT_X(thread != 0, "QThread", "internal error"); return thread->d_func()->data; }
+    { Q_ASSERT_X(thread != nullptr, "QThread", "internal error"); return thread->d_func()->data; }
 
 
     void ref();
@@ -281,7 +281,7 @@ public:
 
     public:
         FlaggedDebugSignatures() : idx(0)
-        { std::fill_n(locations, Count, static_cast<char*>(0)); }
+        { std::fill_n(locations, Count, static_cast<char*>(nullptr)); }
 
         void store(const char* method)
         { locations[idx++ % Count] = method; }
@@ -328,7 +328,7 @@ class QAdoptedThread : public QThread
     Q_DECLARE_PRIVATE(QThread)
 
 public:
-    QAdoptedThread(QThreadData *data = 0);
+    QAdoptedThread(QThreadData *data = nullptr);
     ~QAdoptedThread();
     void init();
 
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index a13f8ca215..8328e514a8 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -443,7 +443,7 @@ void QThreadPrivate::finish(void *arg)
  ** QThread
  *************************************************************************/
 
-Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
+Qt::HANDLE QThread::currentThreadId() noexcept
 {
     // requires a C cast here otherwise we run into trouble on AIX
     return to_HANDLE(pthread_self());
@@ -454,7 +454,7 @@ Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
 #  define _SC_NPROCESSORS_ONLN 84
 #endif
 
-int QThread::idealThreadCount() Q_DECL_NOTHROW
+int QThread::idealThreadCount() noexcept
 {
     int cores = 1;
 
diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index e56fe2c6ae..ee73280707 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -372,7 +372,7 @@ QAbstractEventDispatcher *QThreadPrivate::createEventDispatcher(QThreadData *dat
 
 #if QT_CONFIG(thread)
 
-unsigned int __stdcall QT_ENSURE_STACK_ALIGNED_FOR_SSE QThreadPrivate::start(void *arg) Q_DECL_NOEXCEPT
+unsigned int __stdcall QT_ENSURE_STACK_ALIGNED_FOR_SSE QThreadPrivate::start(void *arg) noexcept
 {
     QThread *thr = reinterpret_cast<QThread *>(arg);
     QThreadData *data = QThreadData::get2(thr);
@@ -406,7 +406,7 @@ unsigned int __stdcall QT_ENSURE_STACK_ALIGNED_FOR_SSE QThreadPrivate::start(voi
     return 0;
 }
 
-void QThreadPrivate::finish(void *arg, bool lockAnyway) Q_DECL_NOEXCEPT
+void QThreadPrivate::finish(void *arg, bool lockAnyway) noexcept
 {
     QThread *thr = reinterpret_cast<QThread *>(arg);
     QThreadPrivate *d = thr->d_func();
@@ -447,12 +447,12 @@ void QThreadPrivate::finish(void *arg, bool lockAnyway) Q_DECL_NOEXCEPT
  ** QThread
  *************************************************************************/
 
-Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
+Qt::HANDLE QThread::currentThreadId() noexcept
 {
     return reinterpret_cast<Qt::HANDLE>(quintptr(GetCurrentThreadId()));
 }
 
-int QThread::idealThreadCount() Q_DECL_NOTHROW
+int QThread::idealThreadCount() noexcept
 {
     SYSTEM_INFO sysinfo;
 #ifndef Q_OS_WINRT
diff --git a/src/corelib/thread/qthreadpool_p.h b/src/corelib/thread/qthreadpool_p.h
index 952e02ef20..01852d8366 100644
--- a/src/corelib/thread/qthreadpool_p.h
+++ b/src/corelib/thread/qthreadpool_p.h
@@ -162,7 +162,7 @@ public:
     void tryToStartMoreThreads();
     bool tooManyThreadsActive() const;
 
-    void startThread(QRunnable *runnable = 0);
+    void startThread(QRunnable *runnable = nullptr);
     void reset();
     bool waitForDone(int msecs);
     bool waitForDone(const QDeadlineTimer &timer);
diff --git a/src/corelib/thread/qthreadstorage.h b/src/corelib/thread/qthreadstorage.h
index 55fc482da3..9eb8672e92 100644
--- a/src/corelib/thread/qthreadstorage.h
+++ b/src/corelib/thread/qthreadstorage.h
@@ -69,7 +69,7 @@ inline
 T *&qThreadStorage_localData(QThreadStorageData &d, T **)
 {
     void **v = d.get();
-    if (!v) v = d.set(0);
+    if (!v) v = d.set(nullptr);
     return *(reinterpret_cast<T**>(v));
 }
 
@@ -139,7 +139,7 @@ public:
     inline ~QThreadStorage() { }
 
     inline bool hasLocalData() const
-    { return d.get() != 0; }
+    { return d.get() != nullptr; }
 
     inline T& localData()
     { return qThreadStorage_localData(d, reinterpret_cast<T*>(0)); }
diff --git a/src/corelib/tools/qalgorithms.h b/src/corelib/tools/qalgorithms.h
index 0146e22fa3..f1243b5c61 100644
--- a/src/corelib/tools/qalgorithms.h
+++ b/src/corelib/tools/qalgorithms.h
@@ -533,7 +533,7 @@ QT_DEPRECATED_X("Use std::binary_search") Q_OUTOFLINE_TEMPLATE RandomAccessItera
 #if defined QT_HAS_CONSTEXPR_BUILTINS
 #if defined(Q_CC_GNU) || defined(Q_CC_CLANG)
 #  define QT_HAS_BUILTIN_CTZS
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctzs(quint16 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctzs(quint16 v) noexcept
 {
 #  if QT_HAS_BUILTIN(__builtin_ctzs)
     return __builtin_ctzs(v);
@@ -542,7 +542,7 @@ Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctzs(quint16 v) Q_DECL_NOTHROW
 #  endif
 }
 #define QT_HAS_BUILTIN_CLZS
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) noexcept
 {
 #  if QT_HAS_BUILTIN(__builtin_clzs)
     return __builtin_clzs(v);
@@ -551,40 +551,40 @@ Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) Q_DECL_NOTHROW
 #  endif
 }
 #define QT_HAS_BUILTIN_CTZ
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctz(quint32 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctz(quint32 v) noexcept
 {
     return __builtin_ctz(v);
 }
 #define QT_HAS_BUILTIN_CLZ
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clz(quint32 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clz(quint32 v) noexcept
 {
     return __builtin_clz(v);
 }
 #define QT_HAS_BUILTIN_CTZLL
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctzll(quint64 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_ctzll(quint64 v) noexcept
 {
     return __builtin_ctzll(v);
 }
 #define QT_HAS_BUILTIN_CLZLL
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clzll(quint64 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_clzll(quint64 v) noexcept
 {
     return __builtin_clzll(v);
 }
 #define QALGORITHMS_USE_BUILTIN_POPCOUNT
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint32 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint32 v) noexcept
 {
     return __builtin_popcount(v);
 }
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint8 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint8 v) noexcept
 {
     return __builtin_popcount(v);
 }
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint16 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcount(quint16 v) noexcept
 {
     return __builtin_popcount(v);
 }
 #define QALGORITHMS_USE_BUILTIN_POPCOUNTLL
-Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) noexcept
 {
     return __builtin_popcountll(v);
 }
@@ -630,12 +630,12 @@ Q_ALWAYS_INLINE unsigned long qt_builtin_clzll(quint64 val)
 }
 #endif // MSVC 64bit
 #  define QT_HAS_BUILTIN_CTZS
-Q_ALWAYS_INLINE uint qt_builtin_ctzs(quint16 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_ctzs(quint16 v) noexcept
 {
     return qt_builtin_ctz(v);
 }
 #define QT_HAS_BUILTIN_CLZS
-Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) noexcept
 {
     return qt_builtin_clz(v) - 16U;
 }
@@ -652,19 +652,19 @@ Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) Q_DECL_NOTHROW
 #if defined(__AVX__) || defined(__SSE4_2__) || defined(__POPCNT__)
 #define QALGORITHMS_USE_BUILTIN_POPCOUNT
 #define QALGORITHMS_USE_BUILTIN_POPCOUNTLL
-Q_ALWAYS_INLINE uint qt_builtin_popcount(quint32 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_popcount(quint32 v) noexcept
 {
     return __popcnt(v);
 }
-Q_ALWAYS_INLINE uint qt_builtin_popcount(quint8 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_popcount(quint8 v) noexcept
 {
     return __popcnt16(v);
 }
-Q_ALWAYS_INLINE uint qt_builtin_popcount(quint16 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_popcount(quint16 v) noexcept
 {
     return __popcnt16(v);
 }
-Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) Q_DECL_NOTHROW
+Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) noexcept
 {
 #if Q_PROCESSOR_WORDSIZE == 8
     return __popcnt64(v);
@@ -685,7 +685,7 @@ Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) Q_DECL_NOTHROW
 
 } //namespace QAlgorithmsPrivate
 
-Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint32 v) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint32 v) noexcept
 {
 #ifdef QALGORITHMS_USE_BUILTIN_POPCOUNT
     return QAlgorithmsPrivate::qt_builtin_popcount(v);
@@ -698,7 +698,7 @@ Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint32
 #endif
 }
 
-Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint8 v) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint8 v) noexcept
 {
 #ifdef QALGORITHMS_USE_BUILTIN_POPCOUNT
     return QAlgorithmsPrivate::qt_builtin_popcount(v);
@@ -708,7 +708,7 @@ Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint8
 #endif
 }
 
-Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint16 v) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint16 v) noexcept
 {
 #ifdef QALGORITHMS_USE_BUILTIN_POPCOUNT
     return QAlgorithmsPrivate::qt_builtin_popcount(v);
@@ -719,7 +719,7 @@ Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint16
 #endif
 }
 
-Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint64 v) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint64 v) noexcept
 {
 #ifdef QALGORITHMS_USE_BUILTIN_POPCOUNTLL
     return QAlgorithmsPrivate::qt_builtin_popcountll(v);
@@ -734,7 +734,7 @@ Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(quint64
 #endif
 }
 
-Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(long unsigned int v) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(long unsigned int v) noexcept
 {
     return qPopulationCount(static_cast<quint64>(v));
 }
@@ -744,7 +744,7 @@ Q_DECL_CONST_FUNCTION QT_POPCOUNT_CONSTEXPR inline uint qPopulationCount(long un
 #endif
 #undef QT_POPCOUNT_CONSTEXPR
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint32 v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint32 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CTZ)
     return v ? QAlgorithmsPrivate::qt_builtin_ctz(v) : 32U;
@@ -762,7 +762,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint32 v) Q_DECL_NO
 #endif
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint8 v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint8 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CTZ)
     return v ? QAlgorithmsPrivate::qt_builtin_ctz(v) : 8U;
@@ -777,7 +777,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint8 v) Q_DECL_NOT
 #endif
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint16 v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint16 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CTZS)
     return v ? QAlgorithmsPrivate::qt_builtin_ctzs(v) : 16U;
@@ -793,7 +793,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint16 v) Q_DECL_NO
 #endif
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint64 v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint64 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CTZLL)
     return v ? QAlgorithmsPrivate::qt_builtin_ctzll(v) : 64;
@@ -804,12 +804,12 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint64 v) Q_DECL_NO
 #endif
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(unsigned long v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(unsigned long v) noexcept
 {
     return qCountTrailingZeroBits(QIntegerForSizeof<long>::Unsigned(v));
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint32 v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint32 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CLZ)
     return v ? QAlgorithmsPrivate::qt_builtin_clz(v) : 32U;
@@ -824,7 +824,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint32 v) Q_DECL_NOT
 #endif
 }
 
-QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint8 v) Q_DECL_NOTHROW
+QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint8 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CLZ)
     return v ? QAlgorithmsPrivate::qt_builtin_clz(v)-24U : 8U;
@@ -836,7 +836,7 @@ QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint8 v) Q_DECL
 #endif
 }
 
-QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint16 v) Q_DECL_NOTHROW
+QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint16 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CLZS)
     return v ? QAlgorithmsPrivate::qt_builtin_clzs(v) : 16U;
@@ -849,7 +849,7 @@ QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint16 v) Q_DEC
 #endif
 }
 
-QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint64 v) Q_DECL_NOTHROW
+QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint64 v) noexcept
 {
 #if defined(QT_HAS_BUILTIN_CLZLL)
     return v ? QAlgorithmsPrivate::qt_builtin_clzll(v) : 64U;
@@ -864,7 +864,7 @@ QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint64 v) Q_DEC
 #endif
 }
 
-QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(unsigned long v) Q_DECL_NOTHROW
+QT_POPCOUNT_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(unsigned long v) noexcept
 {
     return qCountLeadingZeroBits(QIntegerForSizeof<long>::Unsigned(v));
 }
diff --git a/src/corelib/tools/qarraydata.cpp b/src/corelib/tools/qarraydata.cpp
index a91d833e3b..bcc0688a91 100644
--- a/src/corelib/tools/qarraydata.cpp
+++ b/src/corelib/tools/qarraydata.cpp
@@ -87,7 +87,7 @@ static QArrayData *reallocateData(QArrayData *header, size_t allocSize, uint opt
 }
 
 QArrayData *QArrayData::allocate(size_t objectSize, size_t alignment,
-        size_t capacity, AllocationOptions options) Q_DECL_NOTHROW
+        size_t capacity, AllocationOptions options) noexcept
 {
     // Alignment is a power of two
     Q_ASSERT(alignment >= Q_ALIGNOF(QArrayData)
@@ -135,7 +135,7 @@ QArrayData *QArrayData::allocate(size_t objectSize, size_t alignment,
 }
 
 QArrayData *QArrayData::reallocateUnaligned(QArrayData *data, size_t objectSize, size_t capacity,
-                                            AllocationOptions options) Q_DECL_NOTHROW
+                                            AllocationOptions options) noexcept
 {
     Q_ASSERT(data);
     Q_ASSERT(data->isMutable());
@@ -150,7 +150,7 @@ QArrayData *QArrayData::reallocateUnaligned(QArrayData *data, size_t objectSize,
 }
 
 void QArrayData::deallocate(QArrayData *data, size_t objectSize,
-        size_t alignment) Q_DECL_NOTHROW
+        size_t alignment) noexcept
 {
     // Alignment is a power of two
     Q_ASSERT(alignment >= Q_ALIGNOF(QArrayData)
diff --git a/src/corelib/tools/qarraydata.h b/src/corelib/tools/qarraydata.h
index a642fb9b39..7e3f8c9dbd 100644
--- a/src/corelib/tools/qarraydata.h
+++ b/src/corelib/tools/qarraydata.h
@@ -113,14 +113,14 @@ struct Q_CORE_EXPORT QArrayData
     }
 
     Q_REQUIRED_RESULT static QArrayData *allocate(size_t objectSize, size_t alignment,
-            size_t capacity, AllocationOptions options = Default) Q_DECL_NOTHROW;
+            size_t capacity, AllocationOptions options = Default) noexcept;
     Q_REQUIRED_RESULT static QArrayData *reallocateUnaligned(QArrayData *data, size_t objectSize,
-            size_t newCapacity, AllocationOptions newOptions = Default) Q_DECL_NOTHROW;
+            size_t newCapacity, AllocationOptions newOptions = Default) noexcept;
     static void deallocate(QArrayData *data, size_t objectSize,
-            size_t alignment) Q_DECL_NOTHROW;
+            size_t alignment) noexcept;
 
     static const QArrayData shared_null[2];
-    static QArrayData *sharedNull() Q_DECL_NOTHROW { return const_cast<QArrayData*>(shared_null); }
+    static QArrayData *sharedNull() noexcept { return const_cast<QArrayData*>(shared_null); }
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QArrayData::AllocationOptions)
@@ -254,7 +254,7 @@ struct QTypedArrayData
         return result;
     }
 
-    static QTypedArrayData *sharedNull() Q_DECL_NOTHROW
+    static QTypedArrayData *sharedNull() noexcept
     {
         Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData));
         return static_cast<QTypedArrayData *>(QArrayData::sharedNull());
@@ -306,8 +306,6 @@ struct QArrayDataPointerRef
 // accomplished by hiding a static const instance of QStaticArrayData, which is
 // POD.
 
-#if defined(Q_COMPILER_VARIADIC_MACROS)
-#if defined(Q_COMPILER_LAMBDA)
 // Hide array inside a lambda
 #define Q_ARRAY_LITERAL(Type, ...)                                              \
     ([]() -> QArrayDataPointerRef<Type> {                                       \
@@ -324,10 +322,7 @@ struct QArrayDataPointerRef
             return StaticWrapper::get();                                        \
         }())                                                                    \
     /**/
-#endif
-#endif // defined(Q_COMPILER_VARIADIC_MACROS)
 
-#if defined(Q_ARRAY_LITERAL)
 #define Q_ARRAY_LITERAL_IMPL(Type, ...)                                         \
     union { Type type_must_be_POD; } dummy; Q_UNUSED(dummy)                     \
                                                                                 \
@@ -342,31 +337,6 @@ struct QArrayDataPointerRef
         { static_cast<QTypedArrayData<Type> *>(                                 \
             const_cast<QArrayData *>(&literal.header)) };                       \
     /**/
-#else
-// As a fallback, memory is allocated and data copied to the heap.
-
-// The fallback macro does NOT use variadic macros and does NOT support
-// variable number of arguments. It is suitable for char arrays.
-
-namespace QtPrivate {
-    template <class T, size_t N>
-    inline QArrayDataPointerRef<T> qMakeArrayLiteral(const T (&array)[N])
-    {
-        union { T type_must_be_POD; } dummy; Q_UNUSED(dummy)
-
-        QArrayDataPointerRef<T> result = { QTypedArrayData<T>::allocate(N) };
-        Q_CHECK_PTR(result.ptr);
-
-        ::memcpy(result.ptr->data(), array, N * sizeof(T));
-        result.ptr->size = N;
-
-        return result;
-    }
-}
-
-#define Q_ARRAY_LITERAL(Type, Array) \
-    QT_PREPEND_NAMESPACE(QtPrivate::qMakeArrayLiteral)<Type>( Array )
-#endif // !defined(Q_ARRAY_LITERAL)
 
 namespace QtPrivate {
 struct Q_CORE_EXPORT QContainerImplHelper
diff --git a/src/corelib/tools/qarraydatapointer.h b/src/corelib/tools/qarraydatapointer.h
index 51cfa6e849..0322615f91 100644
--- a/src/corelib/tools/qarraydatapointer.h
+++ b/src/corelib/tools/qarraydatapointer.h
@@ -52,7 +52,7 @@ private:
     typedef QArrayDataOps<T> DataOps;
 
 public:
-    QArrayDataPointer() Q_DECL_NOTHROW
+    QArrayDataPointer() noexcept
         : d(Data::sharedNull())
     {
     }
@@ -82,20 +82,18 @@ public:
         return *this;
     }
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    QArrayDataPointer(QArrayDataPointer &&other) Q_DECL_NOTHROW
+    QArrayDataPointer(QArrayDataPointer &&other) noexcept
         : d(other.d)
     {
         other.d = Data::sharedNull();
     }
 
-    QArrayDataPointer &operator=(QArrayDataPointer &&other) Q_DECL_NOTHROW
+    QArrayDataPointer &operator=(QArrayDataPointer &&other) noexcept
     {
         QArrayDataPointer moved(std::move(other));
         this->swap(moved);
         return *this;
     }
-#endif
 
     DataOps &operator*() const
     {
@@ -150,7 +148,7 @@ public:
     bool isSharable() const { return d->isSharable(); }
 #endif
 
-    void swap(QArrayDataPointer &other) Q_DECL_NOTHROW
+    void swap(QArrayDataPointer &other) noexcept
     {
         qSwap(d, other.d);
     }
diff --git a/src/corelib/tools/qbitarray.h b/src/corelib/tools/qbitarray.h
index ff40bf5654..9b0e931aca 100644
--- a/src/corelib/tools/qbitarray.h
+++ b/src/corelib/tools/qbitarray.h
@@ -50,21 +50,19 @@ class Q_CORE_EXPORT QBitArray
 {
     friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QBitArray &);
     friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QBitArray &);
-    friend Q_CORE_EXPORT uint qHash(const QBitArray &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QBitArray &key, uint seed) noexcept;
     QByteArray d;
 
 public:
-    inline QBitArray() Q_DECL_NOTHROW {}
+    inline QBitArray() noexcept {}
     explicit QBitArray(int size, bool val = false);
     QBitArray(const QBitArray &other) : d(other.d) {}
     inline QBitArray &operator=(const QBitArray &other) { d = other.d; return *this; }
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QBitArray(QBitArray &&other) Q_DECL_NOTHROW : d(std::move(other.d)) {}
-    inline QBitArray &operator=(QBitArray &&other) Q_DECL_NOTHROW
+    inline QBitArray(QBitArray &&other) noexcept : d(std::move(other.d)) {}
+    inline QBitArray &operator=(QBitArray &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
 
-    inline void swap(QBitArray &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QBitArray &other) noexcept { qSwap(d, other.d); }
 
     inline int size() const { return (d.size() << 3) - *d.constData(); }
     inline int count() const { return (d.size() << 3) - *d.constData(); }
diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp
index 6cc41a8956..720a91af49 100644
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@@ -165,7 +165,7 @@ int qFindByteArray(
     This function returns SIZE_MAX (~0) on overflow or if the memory block size
     would not fit an int.
 */
-size_t qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) Q_DECL_NOTHROW
+size_t qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) noexcept
 {
     unsigned count = unsigned(elementCount);
     unsigned size = unsigned(elementSize);
@@ -206,7 +206,7 @@ size_t qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t heade
     needed.
 */
 CalculateGrowingBlockSizeResult
-qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) Q_DECL_NOTHROW
+qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) noexcept
 {
     CalculateGrowingBlockSizeResult result = {
         std::numeric_limits<size_t>::max(),std::numeric_limits<size_t>::max()
@@ -1281,7 +1281,7 @@ QByteArray qUncompress(const uchar* data, int nbytes)
     Assigns \a other to this byte array and returns a reference to
     this byte array.
 */
-QByteArray &QByteArray::operator=(const QByteArray & other) Q_DECL_NOTHROW
+QByteArray &QByteArray::operator=(const QByteArray & other) noexcept
 {
     other.d->ref.ref();
     if (!d->ref.deref())
@@ -3282,10 +3282,10 @@ static QByteArray toCase_template(T &input, const uchar * table)
     }
 
     if (firstBad == e)
-        return qMove(input);
+        return std::move(input);
 
     // transform the rest
-    QByteArray s = qMove(input);    // will copy if T is const QByteArray
+    QByteArray s = std::move(input);    // will copy if T is const QByteArray
     char *b = s.begin();            // will detach if necessary
     char *p = b + (firstBad - orig_begin);
     e = b + s.size();
@@ -4136,10 +4136,9 @@ ushort QByteArray::toUShort(bool *ok, int base) const
 
 double QByteArray::toDouble(bool *ok) const
 {
-    QByteArray nulled = nulTerminated();
     bool nonNullOk = false;
     int processed = 0;
-    double d = qt_asciiToDouble(nulled.constData(), nulled.length(),
+    double d = qt_asciiToDouble(constData(), size(),
                                 nonNullOk, processed, WhitespacesAllowed);
     if (ok)
         *ok = nonNullOk;
diff --git a/src/corelib/tools/qbytearray.h b/src/corelib/tools/qbytearray.h
index 8ee3a29ecc..14fcddce7c 100644
--- a/src/corelib/tools/qbytearray.h
+++ b/src/corelib/tools/qbytearray.h
@@ -168,22 +168,20 @@ public:
     };
     Q_DECLARE_FLAGS(Base64Options, Base64Option)
 
-    inline QByteArray() Q_DECL_NOTHROW;
+    inline QByteArray() noexcept;
     QByteArray(const char *, int size = -1);
     QByteArray(int size, char c);
     QByteArray(int size, Qt::Initialization);
-    inline QByteArray(const QByteArray &) Q_DECL_NOTHROW;
+    inline QByteArray(const QByteArray &) noexcept;
     inline ~QByteArray();
 
-    QByteArray &operator=(const QByteArray &) Q_DECL_NOTHROW;
+    QByteArray &operator=(const QByteArray &) noexcept;
     QByteArray &operator=(const char *str);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QByteArray(QByteArray && other) Q_DECL_NOTHROW : d(other.d) { other.d = Data::sharedNull(); }
-    inline QByteArray &operator=(QByteArray &&other) Q_DECL_NOTHROW
+    inline QByteArray(QByteArray && other) noexcept : d(other.d) { other.d = Data::sharedNull(); }
+    inline QByteArray &operator=(QByteArray &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
 
-    inline void swap(QByteArray &other) Q_DECL_NOTHROW
+    inline void swap(QByteArray &other) noexcept
     { qSwap(d, other.d); }
 
     inline int size() const;
@@ -472,7 +470,7 @@ public:
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QByteArray::Base64Options)
 
-inline QByteArray::QByteArray() Q_DECL_NOTHROW : d(Data::sharedNull()) { }
+inline QByteArray::QByteArray() noexcept : d(Data::sharedNull()) { }
 inline QByteArray::~QByteArray() { if (!d->ref.deref()) Data::deallocate(d); }
 inline int QByteArray::size() const
 { return d->size; }
@@ -502,7 +500,7 @@ inline void QByteArray::detach()
 { if (d->ref.isShared() || (d->offset != sizeof(QByteArrayData))) reallocData(uint(d->size) + 1u, d->detachFlags()); }
 inline bool QByteArray::isDetached() const
 { return !d->ref.isShared(); }
-inline QByteArray::QByteArray(const QByteArray &a) Q_DECL_NOTHROW : d(a.d)
+inline QByteArray::QByteArray(const QByteArray &a) noexcept : d(a.d)
 { d->ref.ref(); }
 
 inline int QByteArray::capacity() const
@@ -617,41 +615,41 @@ inline int QByteArray::compare(const QByteArray &a, Qt::CaseSensitivity cs) cons
     return cs == Qt::CaseSensitive ? qstrcmp(*this, a) :
                                      qstrnicmp(data(), size(), a.data(), a.size());
 }
-inline bool operator==(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator==(const QByteArray &a1, const QByteArray &a2) noexcept
 { return (a1.size() == a2.size()) && (memcmp(a1.constData(), a2.constData(), a1.size())==0); }
-inline bool operator==(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+inline bool operator==(const QByteArray &a1, const char *a2) noexcept
 { return a2 ? qstrcmp(a1,a2) == 0 : a1.isEmpty(); }
-inline bool operator==(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator==(const char *a1, const QByteArray &a2) noexcept
 { return a1 ? qstrcmp(a1,a2) == 0 : a2.isEmpty(); }
-inline bool operator!=(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator!=(const QByteArray &a1, const QByteArray &a2) noexcept
 { return !(a1==a2); }
-inline bool operator!=(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+inline bool operator!=(const QByteArray &a1, const char *a2) noexcept
 { return a2 ? qstrcmp(a1,a2) != 0 : !a1.isEmpty(); }
-inline bool operator!=(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator!=(const char *a1, const QByteArray &a2) noexcept
 { return a1 ? qstrcmp(a1,a2) != 0 : !a2.isEmpty(); }
-inline bool operator<(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator<(const QByteArray &a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) < 0; }
- inline bool operator<(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+ inline bool operator<(const QByteArray &a1, const char *a2) noexcept
 { return qstrcmp(a1, a2) < 0; }
-inline bool operator<(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator<(const char *a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) < 0; }
-inline bool operator<=(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator<=(const QByteArray &a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) <= 0; }
-inline bool operator<=(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+inline bool operator<=(const QByteArray &a1, const char *a2) noexcept
 { return qstrcmp(a1, a2) <= 0; }
-inline bool operator<=(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator<=(const char *a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) <= 0; }
-inline bool operator>(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator>(const QByteArray &a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) > 0; }
-inline bool operator>(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+inline bool operator>(const QByteArray &a1, const char *a2) noexcept
 { return qstrcmp(a1, a2) > 0; }
-inline bool operator>(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator>(const char *a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) > 0; }
-inline bool operator>=(const QByteArray &a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator>=(const QByteArray &a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) >= 0; }
-inline bool operator>=(const QByteArray &a1, const char *a2) Q_DECL_NOTHROW
+inline bool operator>=(const QByteArray &a1, const char *a2) noexcept
 { return qstrcmp(a1, a2) >= 0; }
-inline bool operator>=(const char *a1, const QByteArray &a2) Q_DECL_NOTHROW
+inline bool operator>=(const char *a1, const QByteArray &a2) noexcept
 { return qstrcmp(a1, a2) >= 0; }
 #if !defined(QT_USE_QSTRINGBUILDER)
 inline const QByteArray operator+(const QByteArray &a1, const QByteArray &a2)
diff --git a/src/corelib/tools/qbytearraymatcher.cpp b/src/corelib/tools/qbytearraymatcher.cpp
index 72f0e0519d..d2eb4e0e3c 100644
--- a/src/corelib/tools/qbytearraymatcher.cpp
+++ b/src/corelib/tools/qbytearraymatcher.cpp
@@ -404,7 +404,7 @@ int qFindByteArray(
 /*!
     \internal
 */
-int QStaticByteArrayMatcherBase::indexOfIn(const char *needle, uint nlen, const char *haystack, int hlen, int from) const Q_DECL_NOTHROW
+int QStaticByteArrayMatcherBase::indexOfIn(const char *needle, uint nlen, const char *haystack, int hlen, int from) const noexcept
 {
     if (from < 0)
         from = 0;
diff --git a/src/corelib/tools/qbytearraymatcher.h b/src/corelib/tools/qbytearraymatcher.h
index dafaea9c12..0eedfc1d20 100644
--- a/src/corelib/tools/qbytearraymatcher.h
+++ b/src/corelib/tools/qbytearraymatcher.h
@@ -90,15 +90,15 @@ class QStaticByteArrayMatcherBase
         uchar data[256];
     } m_skiptable;
 protected:
-    explicit Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcherBase(const char *pattern, uint n) Q_DECL_NOTHROW
+    explicit Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcherBase(const char *pattern, uint n) noexcept
         : m_skiptable(generate(pattern, n)) {}
     // compiler-generated copy/more ctors/assignment operators are ok!
     // compiler-generated dtor is ok!
 
-    Q_CORE_EXPORT int indexOfIn(const char *needle, uint nlen, const char *haystack, int hlen, int from) const Q_DECL_NOTHROW;
+    Q_CORE_EXPORT int indexOfIn(const char *needle, uint nlen, const char *haystack, int hlen, int from) const noexcept;
 
 private:
-    static Q_DECL_RELAXED_CONSTEXPR Skiptable generate(const char *pattern, uint n) Q_DECL_NOTHROW
+    static Q_DECL_RELAXED_CONSTEXPR Skiptable generate(const char *pattern, uint n) noexcept
     {
         const auto uchar_max = (std::numeric_limits<uchar>::max)();
         uchar max = n > uchar_max ? uchar_max : n;
@@ -140,23 +140,23 @@ class QStaticByteArrayMatcher : QStaticByteArrayMatcherBase
     char m_pattern[N];
     Q_STATIC_ASSERT_X(N > 2, "QStaticByteArrayMatcher makes no sense for finding a single-char pattern");
 public:
-    explicit Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcher(const char (&patternToMatch)[N]) Q_DECL_NOTHROW
+    explicit Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcher(const char (&patternToMatch)[N]) noexcept
         : QStaticByteArrayMatcherBase(patternToMatch, N - 1), m_pattern()
     {
         for (uint i = 0; i < N; ++i)
             m_pattern[i] = patternToMatch[i];
     }
 
-    int indexIn(const QByteArray &haystack, int from = 0) const Q_DECL_NOTHROW
+    int indexIn(const QByteArray &haystack, int from = 0) const noexcept
     { return this->indexOfIn(m_pattern, N - 1, haystack.data(), haystack.size(), from); }
-    int indexIn(const char *haystack, int hlen, int from = 0) const Q_DECL_NOTHROW
+    int indexIn(const char *haystack, int hlen, int from = 0) const noexcept
     { return this->indexOfIn(m_pattern, N - 1, haystack, hlen, from); }
 
     QByteArray pattern() const { return QByteArray(m_pattern, int(N - 1)); }
 };
 
 template <uint N>
-Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcher<N> qMakeStaticByteArrayMatcher(const char (&pattern)[N]) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR QStaticByteArrayMatcher<N> qMakeStaticByteArrayMatcher(const char (&pattern)[N]) noexcept
 { return QStaticByteArrayMatcher<N>(pattern); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qcache.h b/src/corelib/tools/qcache.h
index 8c0e7860f7..4fcde46fbc 100644
--- a/src/corelib/tools/qcache.h
+++ b/src/corelib/tools/qcache.h
@@ -51,7 +51,7 @@ class QCache
     struct Node {
         inline Node() : keyPtr(0) {}
         inline Node(T *data, int cost)
-            : keyPtr(0), t(data), c(cost), p(0), n(0) {}
+            : keyPtr(nullptr), t(data), c(cost), p(nullptr), n(nullptr) {}
         const Key *keyPtr; T *t; int c; Node *p,*n;
     };
     Node *f, *l;
@@ -71,14 +71,14 @@ class QCache
     inline T *relink(const Key &key) {
         typename QHash<Key, Node>::iterator i = hash.find(key);
         if (typename QHash<Key, Node>::const_iterator(i) == hash.constEnd())
-            return 0;
+            return nullptr;
 
         Node &n = *i;
         if (f != &n) {
             if (n.p) n.p->n = n.n;
             if (n.n) n.n->p = n.p;
             if (l == &n) l = n.p;
-            n.p = 0;
+            n.p = nullptr;
             n.n = f;
             f->p = &n;
             f = &n;
@@ -89,7 +89,7 @@ class QCache
     Q_DISABLE_COPY(QCache)
 
 public:
-    inline explicit QCache(int maxCost = 100) Q_DECL_NOTHROW;
+    inline explicit QCache(int maxCost = 100) noexcept;
     inline ~QCache() { clear(); }
 
     inline int maxCost() const { return mx; }
@@ -116,13 +116,13 @@ private:
 };
 
 template <class Key, class T>
-inline QCache<Key, T>::QCache(int amaxCost) Q_DECL_NOTHROW
-    : f(0), l(0), mx(amaxCost), total(0) {}
+inline QCache<Key, T>::QCache(int amaxCost) noexcept
+    : f(nullptr), l(nullptr), mx(amaxCost), total(0) {}
 
 template <class Key, class T>
 inline void QCache<Key,T>::clear()
 { while (f) { delete f->t; f = f->n; }
- hash.clear(); l = 0; total = 0; }
+ hash.clear(); l = nullptr; total = 0; }
 
 template <class Key, class T>
 inline void QCache<Key,T>::setMaxCost(int m)
@@ -153,11 +153,11 @@ inline T *QCache<Key,T>::take(const Key &key)
 {
     typename QHash<Key, Node>::iterator i = hash.find(key);
     if (i == hash.end())
-        return 0;
+        return nullptr;
 
     Node &n = *i;
     T *t = n.t;
-    n.t = 0;
+    n.t = nullptr;
     unlink(n);
     return t;
 }
diff --git a/src/corelib/tools/qchar.cpp b/src/corelib/tools/qchar.cpp
index 47c853084b..d6061defc3 100644
--- a/src/corelib/tools/qchar.cpp
+++ b/src/corelib/tools/qchar.cpp
@@ -733,7 +733,7 @@ QT_BEGIN_NAMESPACE
     Note that this gives no indication of whether the character is
     available in a particular font.
 */
-bool QChar::isPrint(uint ucs4) Q_DECL_NOTHROW
+bool QChar::isPrint(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -766,7 +766,7 @@ bool QChar::isPrint(uint ucs4) Q_DECL_NOTHROW
 /*!
     \internal
 */
-bool QT_FASTCALL QChar::isSpace_helper(uint ucs4) Q_DECL_NOTHROW
+bool QT_FASTCALL QChar::isSpace_helper(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -792,7 +792,7 @@ bool QT_FASTCALL QChar::isSpace_helper(uint ucs4) Q_DECL_NOTHROW
     Returns \c true if the UCS-4-encoded character specified by \a ucs4 is
     a mark (Mark_* categories); otherwise returns \c false.
 */
-bool QChar::isMark(uint ucs4) Q_DECL_NOTHROW
+bool QChar::isMark(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -816,7 +816,7 @@ bool QChar::isMark(uint ucs4) Q_DECL_NOTHROW
     Returns \c true if the UCS-4-encoded character specified by \a ucs4 is
     a punctuation mark (Punctuation_* categories); otherwise returns \c false.
 */
-bool QChar::isPunct(uint ucs4) Q_DECL_NOTHROW
+bool QChar::isPunct(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -844,7 +844,7 @@ bool QChar::isPunct(uint ucs4) Q_DECL_NOTHROW
     Returns \c true if the UCS-4-encoded character specified by \a ucs4 is
     a symbol (Symbol_* categories); otherwise returns \c false.
 */
-bool QChar::isSymbol(uint ucs4) Q_DECL_NOTHROW
+bool QChar::isSymbol(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -874,7 +874,7 @@ bool QChar::isSymbol(uint ucs4) Q_DECL_NOTHROW
 /*!
     \internal
 */
-bool QT_FASTCALL QChar::isLetter_helper(uint ucs4) Q_DECL_NOTHROW
+bool QT_FASTCALL QChar::isLetter_helper(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -909,7 +909,7 @@ bool QT_FASTCALL QChar::isLetter_helper(uint ucs4) Q_DECL_NOTHROW
 /*!
     \internal
 */
-bool QT_FASTCALL QChar::isNumber_helper(uint ucs4) Q_DECL_NOTHROW
+bool QT_FASTCALL QChar::isNumber_helper(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -938,7 +938,7 @@ bool QT_FASTCALL QChar::isNumber_helper(uint ucs4) Q_DECL_NOTHROW
 /*!
     \internal
 */
-bool QT_FASTCALL QChar::isLetterOrNumber_helper(uint ucs4) Q_DECL_NOTHROW
+bool QT_FASTCALL QChar::isLetterOrNumber_helper(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -1101,7 +1101,7 @@ bool QT_FASTCALL QChar::isLetterOrNumber_helper(uint ucs4) Q_DECL_NOTHROW
     Returns the numeric value of the digit specified by the UCS-4-encoded
     character, \a ucs4, or -1 if the character is not a digit.
 */
-int QChar::digitValue(uint ucs4) Q_DECL_NOTHROW
+int QChar::digitValue(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return -1;
@@ -1118,7 +1118,7 @@ int QChar::digitValue(uint ucs4) Q_DECL_NOTHROW
     \overload
     Returns the category of the UCS-4-encoded character specified by \a ucs4.
 */
-QChar::Category QChar::category(uint ucs4) Q_DECL_NOTHROW
+QChar::Category QChar::category(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::Other_NotAssigned;
@@ -1135,7 +1135,7 @@ QChar::Category QChar::category(uint ucs4) Q_DECL_NOTHROW
     \overload
     Returns the direction of the UCS-4-encoded character specified by \a ucs4.
 */
-QChar::Direction QChar::direction(uint ucs4) Q_DECL_NOTHROW
+QChar::Direction QChar::direction(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::DirL;
@@ -1158,7 +1158,7 @@ QChar::Direction QChar::direction(uint ucs4) Q_DECL_NOTHROW
     character specified by \a ucs4
     (needed for certain languages such as Arabic or Syriac).
 */
-QChar::JoiningType QChar::joiningType(uint ucs4) Q_DECL_NOTHROW
+QChar::JoiningType QChar::joiningType(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::Joining_None;
@@ -1181,7 +1181,7 @@ QChar::JoiningType QChar::joiningType(uint ucs4) Q_DECL_NOTHROW
     Returns information about the joining properties of the UCS-4-encoded
     character specified by \a ucs4 (needed for certain languages such as Arabic).
 */
-QChar::Joining QChar::joining(uint ucs4) Q_DECL_NOTHROW
+QChar::Joining QChar::joining(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::OtherJoining;
@@ -1217,7 +1217,7 @@ QChar::Joining QChar::joining(uint ucs4) Q_DECL_NOTHROW
 
     \sa mirroredChar()
 */
-bool QChar::hasMirrored(uint ucs4) Q_DECL_NOTHROW
+bool QChar::hasMirrored(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return false;
@@ -1299,7 +1299,7 @@ bool QChar::hasMirrored(uint ucs4) Q_DECL_NOTHROW
 
     \sa hasMirrored()
 */
-uint QChar::mirroredChar(uint ucs4) Q_DECL_NOTHROW
+uint QChar::mirroredChar(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return ucs4;
@@ -1383,7 +1383,7 @@ QString QChar::decomposition(uint ucs4)
     Returns the tag defining the composition of the UCS-4-encoded character
     specified by \a ucs4. Returns QChar::NoDecomposition if no decomposition exists.
 */
-QChar::Decomposition QChar::decompositionTag(uint ucs4) Q_DECL_NOTHROW
+QChar::Decomposition QChar::decompositionTag(uint ucs4) noexcept
 {
     if (ucs4 >= Hangul_SBase && ucs4 < Hangul_SBase + Hangul_SCount)
         return QChar::Canonical;
@@ -1409,7 +1409,7 @@ QChar::Decomposition QChar::decompositionTag(uint ucs4) Q_DECL_NOTHROW
     Returns the combining class for the UCS-4-encoded character specified by
     \a ucs4, as defined in the Unicode standard.
 */
-unsigned char QChar::combiningClass(uint ucs4) Q_DECL_NOTHROW
+unsigned char QChar::combiningClass(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return 0;
@@ -1430,7 +1430,7 @@ unsigned char QChar::combiningClass(uint ucs4) Q_DECL_NOTHROW
     Returns the Unicode script property value for the character specified in
     its UCS-4-encoded form as \a ucs4.
 */
-QChar::Script QChar::script(uint ucs4) Q_DECL_NOTHROW
+QChar::Script QChar::script(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::Script_Unknown;
@@ -1448,7 +1448,7 @@ QChar::Script QChar::script(uint ucs4) Q_DECL_NOTHROW
     Returns the Unicode version that introduced the character specified in
     its UCS-4-encoded form as \a ucs4.
 */
-QChar::UnicodeVersion QChar::unicodeVersion(uint ucs4) Q_DECL_NOTHROW
+QChar::UnicodeVersion QChar::unicodeVersion(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return QChar::Unicode_Unassigned;
@@ -1458,14 +1458,14 @@ QChar::UnicodeVersion QChar::unicodeVersion(uint ucs4) Q_DECL_NOTHROW
 /*!
     Returns the most recent supported Unicode version.
 */
-QChar::UnicodeVersion QChar::currentUnicodeVersion() Q_DECL_NOTHROW
+QChar::UnicodeVersion QChar::currentUnicodeVersion() noexcept
 {
     return UNICODE_DATA_VERSION;
 }
 
 
 template <typename Traits, typename T>
-Q_DECL_CONST_FUNCTION static inline T convertCase_helper(T uc) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION static inline T convertCase_helper(T uc) noexcept
 {
     const QUnicodeTables::Properties *prop = qGetProp(uc);
 
@@ -1491,7 +1491,7 @@ Q_DECL_CONST_FUNCTION static inline T convertCase_helper(T uc) Q_DECL_NOTHROW
     by \a ucs4 if the character is uppercase or titlecase; otherwise returns
     the character itself.
 */
-uint QChar::toLower(uint ucs4) Q_DECL_NOTHROW
+uint QChar::toLower(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return ucs4;
@@ -1511,7 +1511,7 @@ uint QChar::toLower(uint ucs4) Q_DECL_NOTHROW
     by \a ucs4 if the character is lowercase or titlecase; otherwise returns
     the character itself.
 */
-uint QChar::toUpper(uint ucs4) Q_DECL_NOTHROW
+uint QChar::toUpper(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return ucs4;
@@ -1531,7 +1531,7 @@ uint QChar::toUpper(uint ucs4) Q_DECL_NOTHROW
     by \a ucs4 if the character is lowercase or uppercase; otherwise returns
     the character itself.
 */
-uint QChar::toTitleCase(uint ucs4) Q_DECL_NOTHROW
+uint QChar::toTitleCase(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return ucs4;
@@ -1546,7 +1546,7 @@ static inline uint foldCase(const ushort *ch, const ushort *start)
     return convertCase_helper<QUnicodeTables::CasefoldTraits>(ucs4);
 }
 
-static inline uint foldCase(uint ch, uint &last) Q_DECL_NOTHROW
+static inline uint foldCase(uint ch, uint &last) noexcept
 {
     uint ucs4 = ch;
     if (QChar::isLowSurrogate(ucs4) && QChar::isHighSurrogate(last))
@@ -1555,12 +1555,12 @@ static inline uint foldCase(uint ch, uint &last) Q_DECL_NOTHROW
     return convertCase_helper<QUnicodeTables::CasefoldTraits>(ucs4);
 }
 
-static inline ushort foldCase(ushort ch) Q_DECL_NOTHROW
+static inline ushort foldCase(ushort ch) noexcept
 {
     return convertCase_helper<QUnicodeTables::CasefoldTraits>(ch);
 }
 
-static inline QChar foldCase(QChar ch) Q_DECL_NOTHROW
+static inline QChar foldCase(QChar ch) noexcept
 {
     return QChar(foldCase(ch.unicode()));
 }
@@ -1577,7 +1577,7 @@ static inline QChar foldCase(QChar ch) Q_DECL_NOTHROW
     Returns the case folded equivalent of the UCS-4-encoded character specified
     by \a ucs4. For most Unicode characters this is the same as toLower().
 */
-uint QChar::toCaseFolded(uint ucs4) Q_DECL_NOTHROW
+uint QChar::toCaseFolded(uint ucs4) noexcept
 {
     if (ucs4 > LastValidCodePoint)
         return ucs4;
diff --git a/src/corelib/tools/qchar.h b/src/corelib/tools/qchar.h
index 8590b91ba3..be344838ed 100644
--- a/src/corelib/tools/qchar.h
+++ b/src/corelib/tools/qchar.h
@@ -50,9 +50,9 @@ class QString;
 struct QLatin1Char
 {
 public:
-    Q_DECL_CONSTEXPR inline explicit QLatin1Char(char c) Q_DECL_NOTHROW : ch(c) {}
-    Q_DECL_CONSTEXPR inline char toLatin1() const Q_DECL_NOTHROW { return ch; }
-    Q_DECL_CONSTEXPR inline ushort unicode() const Q_DECL_NOTHROW { return ushort(uchar(ch)); }
+    Q_DECL_CONSTEXPR inline explicit QLatin1Char(char c) noexcept : ch(c) {}
+    Q_DECL_CONSTEXPR inline char toLatin1() const noexcept { return ch; }
+    Q_DECL_CONSTEXPR inline ushort unicode() const noexcept { return ushort(uchar(ch)); }
 
 private:
     char ch;
@@ -78,30 +78,30 @@ public:
         LastValidCodePoint = 0x10ffff
     };
 
-    Q_DECL_CONSTEXPR QChar() Q_DECL_NOTHROW : ucs(0) {}
-    Q_DECL_CONSTEXPR QChar(ushort rc) Q_DECL_NOTHROW : ucs(rc) {} // implicit
-    Q_DECL_CONSTEXPR QChar(uchar c, uchar r) Q_DECL_NOTHROW : ucs(ushort((r << 8) | c)) {}
-    Q_DECL_CONSTEXPR QChar(short rc) Q_DECL_NOTHROW : ucs(ushort(rc)) {} // implicit
-    Q_DECL_CONSTEXPR QChar(uint rc) Q_DECL_NOTHROW : ucs(ushort(rc & 0xffff)) {}
-    Q_DECL_CONSTEXPR QChar(int rc) Q_DECL_NOTHROW : ucs(ushort(rc & 0xffff)) {}
-    Q_DECL_CONSTEXPR QChar(SpecialCharacter s) Q_DECL_NOTHROW : ucs(ushort(s)) {} // implicit
-    Q_DECL_CONSTEXPR QChar(QLatin1Char ch) Q_DECL_NOTHROW : ucs(ch.unicode()) {} // implicit
+    Q_DECL_CONSTEXPR QChar() noexcept : ucs(0) {}
+    Q_DECL_CONSTEXPR QChar(ushort rc) noexcept : ucs(rc) {} // implicit
+    Q_DECL_CONSTEXPR QChar(uchar c, uchar r) noexcept : ucs(ushort((r << 8) | c)) {}
+    Q_DECL_CONSTEXPR QChar(short rc) noexcept : ucs(ushort(rc)) {} // implicit
+    Q_DECL_CONSTEXPR QChar(uint rc) noexcept : ucs(ushort(rc & 0xffff)) {}
+    Q_DECL_CONSTEXPR QChar(int rc) noexcept : ucs(ushort(rc & 0xffff)) {}
+    Q_DECL_CONSTEXPR QChar(SpecialCharacter s) noexcept : ucs(ushort(s)) {} // implicit
+    Q_DECL_CONSTEXPR QChar(QLatin1Char ch) noexcept : ucs(ch.unicode()) {} // implicit
 #if defined(Q_COMPILER_UNICODE_STRINGS)
-    Q_DECL_CONSTEXPR QChar(char16_t ch) Q_DECL_NOTHROW : ucs(ushort(ch)) {} // implicit
+    Q_DECL_CONSTEXPR QChar(char16_t ch) noexcept : ucs(ushort(ch)) {} // implicit
 #endif
 #if defined(Q_OS_WIN)
     Q_STATIC_ASSERT(sizeof(wchar_t) == sizeof(ushort));
 #endif
 #if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
 #   if !defined(_WCHAR_T_DEFINED) || defined(_NATIVE_WCHAR_T_DEFINED)
-    Q_DECL_CONSTEXPR QChar(wchar_t ch) Q_DECL_NOTHROW : ucs(ushort(ch)) {} // implicit
+    Q_DECL_CONSTEXPR QChar(wchar_t ch) noexcept : ucs(ushort(ch)) {} // implicit
 #   endif
 #endif
 
 #ifndef QT_NO_CAST_FROM_ASCII
-    QT_ASCII_CAST_WARN Q_DECL_CONSTEXPR explicit QChar(char c) Q_DECL_NOTHROW : ucs(uchar(c)) { }
+    QT_ASCII_CAST_WARN Q_DECL_CONSTEXPR explicit QChar(char c) noexcept : ucs(uchar(c)) { }
 #ifndef QT_RESTRICTED_CAST_FROM_ASCII
-    QT_ASCII_CAST_WARN Q_DECL_CONSTEXPR explicit QChar(uchar c) Q_DECL_NOTHROW : ucs(c) { }
+    QT_ASCII_CAST_WARN Q_DECL_CONSTEXPR explicit QChar(uchar c) noexcept : ucs(c) { }
 #endif
 #endif
     // Unicode information
@@ -411,11 +411,11 @@ public:
     };
     // ****** WHEN ADDING FUNCTIONS, CONSIDER ADDING TO QCharRef TOO
 
-    inline Category category() const Q_DECL_NOTHROW { return QChar::category(ucs); }
-    inline Direction direction() const Q_DECL_NOTHROW { return QChar::direction(ucs); }
-    inline JoiningType joiningType() const Q_DECL_NOTHROW { return QChar::joiningType(ucs); }
+    inline Category category() const noexcept { return QChar::category(ucs); }
+    inline Direction direction() const noexcept { return QChar::direction(ucs); }
+    inline JoiningType joiningType() const noexcept { return QChar::joiningType(ucs); }
 #if QT_DEPRECATED_SINCE(5, 3)
-    QT_DEPRECATED inline Joining joining() const Q_DECL_NOTHROW
+    QT_DEPRECATED inline Joining joining() const noexcept
     {
         switch (QChar::joiningType(ucs)) {
         case QChar::Joining_Causing: return QChar::Center;
@@ -428,198 +428,198 @@ public:
         }
     }
 #endif
-    inline unsigned char combiningClass() const Q_DECL_NOTHROW { return QChar::combiningClass(ucs); }
+    inline unsigned char combiningClass() const noexcept { return QChar::combiningClass(ucs); }
 
-    inline QChar mirroredChar() const Q_DECL_NOTHROW { return QChar::mirroredChar(ucs); }
-    inline bool hasMirrored() const Q_DECL_NOTHROW { return QChar::hasMirrored(ucs); }
+    inline QChar mirroredChar() const noexcept { return QChar::mirroredChar(ucs); }
+    inline bool hasMirrored() const noexcept { return QChar::hasMirrored(ucs); }
 
     QString decomposition() const;
-    inline Decomposition decompositionTag() const Q_DECL_NOTHROW { return QChar::decompositionTag(ucs); }
+    inline Decomposition decompositionTag() const noexcept { return QChar::decompositionTag(ucs); }
 
-    inline int digitValue() const Q_DECL_NOTHROW { return QChar::digitValue(ucs); }
-    inline QChar toLower() const Q_DECL_NOTHROW { return QChar::toLower(ucs); }
-    inline QChar toUpper() const Q_DECL_NOTHROW { return QChar::toUpper(ucs); }
-    inline QChar toTitleCase() const Q_DECL_NOTHROW { return QChar::toTitleCase(ucs); }
-    inline QChar toCaseFolded() const Q_DECL_NOTHROW { return QChar::toCaseFolded(ucs); }
+    inline int digitValue() const noexcept { return QChar::digitValue(ucs); }
+    inline QChar toLower() const noexcept { return QChar::toLower(ucs); }
+    inline QChar toUpper() const noexcept { return QChar::toUpper(ucs); }
+    inline QChar toTitleCase() const noexcept { return QChar::toTitleCase(ucs); }
+    inline QChar toCaseFolded() const noexcept { return QChar::toCaseFolded(ucs); }
 
-    inline Script script() const Q_DECL_NOTHROW { return QChar::script(ucs); }
+    inline Script script() const noexcept { return QChar::script(ucs); }
 
-    inline UnicodeVersion unicodeVersion() const Q_DECL_NOTHROW { return QChar::unicodeVersion(ucs); }
+    inline UnicodeVersion unicodeVersion() const noexcept { return QChar::unicodeVersion(ucs); }
 
 #if QT_DEPRECATED_SINCE(5, 0)
-    QT_DEPRECATED Q_DECL_CONSTEXPR inline char toAscii() const Q_DECL_NOTHROW { return toLatin1(); }
+    QT_DEPRECATED Q_DECL_CONSTEXPR inline char toAscii() const noexcept { return toLatin1(); }
 #endif
-    Q_DECL_CONSTEXPR inline char toLatin1() const Q_DECL_NOTHROW { return ucs > 0xff ? '\0' : char(ucs); }
-    Q_DECL_CONSTEXPR inline ushort unicode() const Q_DECL_NOTHROW { return ucs; }
-    Q_DECL_RELAXED_CONSTEXPR inline ushort &unicode() Q_DECL_NOTHROW { return ucs; }
+    Q_DECL_CONSTEXPR inline char toLatin1() const noexcept { return ucs > 0xff ? '\0' : char(ucs); }
+    Q_DECL_CONSTEXPR inline ushort unicode() const noexcept { return ucs; }
+    Q_DECL_RELAXED_CONSTEXPR inline ushort &unicode() noexcept { return ucs; }
 
 #if QT_DEPRECATED_SINCE(5, 0)
-    QT_DEPRECATED static Q_DECL_CONSTEXPR inline QChar fromAscii(char c) Q_DECL_NOTHROW
+    QT_DEPRECATED static Q_DECL_CONSTEXPR inline QChar fromAscii(char c) noexcept
     { return fromLatin1(c); }
 #endif
-    static Q_DECL_CONSTEXPR inline QChar fromLatin1(char c) Q_DECL_NOTHROW { return QChar(ushort(uchar(c))); }
-
-    Q_DECL_CONSTEXPR inline bool isNull() const Q_DECL_NOTHROW { return ucs == 0; }
-
-    inline bool isPrint() const Q_DECL_NOTHROW { return QChar::isPrint(ucs); }
-    Q_DECL_CONSTEXPR inline bool isSpace() const Q_DECL_NOTHROW { return QChar::isSpace(ucs); }
-    inline bool isMark() const Q_DECL_NOTHROW { return QChar::isMark(ucs); }
-    inline bool isPunct() const Q_DECL_NOTHROW { return QChar::isPunct(ucs); }
-    inline bool isSymbol() const Q_DECL_NOTHROW { return QChar::isSymbol(ucs); }
-    Q_DECL_CONSTEXPR inline bool isLetter() const Q_DECL_NOTHROW { return QChar::isLetter(ucs); }
-    Q_DECL_CONSTEXPR inline bool isNumber() const Q_DECL_NOTHROW { return QChar::isNumber(ucs); }
-    Q_DECL_CONSTEXPR inline bool isLetterOrNumber() const Q_DECL_NOTHROW { return QChar::isLetterOrNumber(ucs); }
-    Q_DECL_CONSTEXPR inline bool isDigit() const Q_DECL_NOTHROW { return QChar::isDigit(ucs); }
-    Q_DECL_CONSTEXPR inline bool isLower() const Q_DECL_NOTHROW { return QChar::isLower(ucs); }
-    Q_DECL_CONSTEXPR inline bool isUpper() const Q_DECL_NOTHROW { return QChar::isUpper(ucs); }
-    Q_DECL_CONSTEXPR inline bool isTitleCase() const Q_DECL_NOTHROW { return QChar::isTitleCase(ucs); }
-
-    Q_DECL_CONSTEXPR inline bool isNonCharacter() const Q_DECL_NOTHROW { return QChar::isNonCharacter(ucs); }
-    Q_DECL_CONSTEXPR inline bool isHighSurrogate() const Q_DECL_NOTHROW { return QChar::isHighSurrogate(ucs); }
-    Q_DECL_CONSTEXPR inline bool isLowSurrogate() const Q_DECL_NOTHROW { return QChar::isLowSurrogate(ucs); }
-    Q_DECL_CONSTEXPR inline bool isSurrogate() const Q_DECL_NOTHROW { return QChar::isSurrogate(ucs); }
-
-    Q_DECL_CONSTEXPR inline uchar cell() const Q_DECL_NOTHROW { return uchar(ucs & 0xff); }
-    Q_DECL_CONSTEXPR inline uchar row() const Q_DECL_NOTHROW { return uchar((ucs>>8)&0xff); }
-    Q_DECL_RELAXED_CONSTEXPR inline void setCell(uchar acell) Q_DECL_NOTHROW { ucs = ushort((ucs & 0xff00) + acell); }
-    Q_DECL_RELAXED_CONSTEXPR inline void setRow(uchar arow) Q_DECL_NOTHROW { ucs = ushort((ushort(arow)<<8) + (ucs&0xff)); }
-
-    static Q_DECL_CONSTEXPR inline bool isNonCharacter(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline QChar fromLatin1(char c) noexcept { return QChar(ushort(uchar(c))); }
+
+    Q_DECL_CONSTEXPR inline bool isNull() const noexcept { return ucs == 0; }
+
+    inline bool isPrint() const noexcept { return QChar::isPrint(ucs); }
+    Q_DECL_CONSTEXPR inline bool isSpace() const noexcept { return QChar::isSpace(ucs); }
+    inline bool isMark() const noexcept { return QChar::isMark(ucs); }
+    inline bool isPunct() const noexcept { return QChar::isPunct(ucs); }
+    inline bool isSymbol() const noexcept { return QChar::isSymbol(ucs); }
+    Q_DECL_CONSTEXPR inline bool isLetter() const noexcept { return QChar::isLetter(ucs); }
+    Q_DECL_CONSTEXPR inline bool isNumber() const noexcept { return QChar::isNumber(ucs); }
+    Q_DECL_CONSTEXPR inline bool isLetterOrNumber() const noexcept { return QChar::isLetterOrNumber(ucs); }
+    Q_DECL_CONSTEXPR inline bool isDigit() const noexcept { return QChar::isDigit(ucs); }
+    Q_DECL_CONSTEXPR inline bool isLower() const noexcept { return QChar::isLower(ucs); }
+    Q_DECL_CONSTEXPR inline bool isUpper() const noexcept { return QChar::isUpper(ucs); }
+    Q_DECL_CONSTEXPR inline bool isTitleCase() const noexcept { return QChar::isTitleCase(ucs); }
+
+    Q_DECL_CONSTEXPR inline bool isNonCharacter() const noexcept { return QChar::isNonCharacter(ucs); }
+    Q_DECL_CONSTEXPR inline bool isHighSurrogate() const noexcept { return QChar::isHighSurrogate(ucs); }
+    Q_DECL_CONSTEXPR inline bool isLowSurrogate() const noexcept { return QChar::isLowSurrogate(ucs); }
+    Q_DECL_CONSTEXPR inline bool isSurrogate() const noexcept { return QChar::isSurrogate(ucs); }
+
+    Q_DECL_CONSTEXPR inline uchar cell() const noexcept { return uchar(ucs & 0xff); }
+    Q_DECL_CONSTEXPR inline uchar row() const noexcept { return uchar((ucs>>8)&0xff); }
+    Q_DECL_RELAXED_CONSTEXPR inline void setCell(uchar acell) noexcept { ucs = ushort((ucs & 0xff00) + acell); }
+    Q_DECL_RELAXED_CONSTEXPR inline void setRow(uchar arow) noexcept { ucs = ushort((ushort(arow)<<8) + (ucs&0xff)); }
+
+    static Q_DECL_CONSTEXPR inline bool isNonCharacter(uint ucs4) noexcept
     {
         return ucs4 >= 0xfdd0 && (ucs4 <= 0xfdef || (ucs4 & 0xfffe) == 0xfffe);
     }
-    static Q_DECL_CONSTEXPR inline bool isHighSurrogate(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline bool isHighSurrogate(uint ucs4) noexcept
     {
         return ((ucs4 & 0xfffffc00) == 0xd800);
     }
-    static Q_DECL_CONSTEXPR inline bool isLowSurrogate(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline bool isLowSurrogate(uint ucs4) noexcept
     {
         return ((ucs4 & 0xfffffc00) == 0xdc00);
     }
-    static Q_DECL_CONSTEXPR inline bool isSurrogate(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline bool isSurrogate(uint ucs4) noexcept
     {
         return (ucs4 - 0xd800u < 2048u);
     }
-    static Q_DECL_CONSTEXPR inline bool requiresSurrogates(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline bool requiresSurrogates(uint ucs4) noexcept
     {
         return (ucs4 >= 0x10000);
     }
-    static Q_DECL_CONSTEXPR inline uint surrogateToUcs4(ushort high, ushort low) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline uint surrogateToUcs4(ushort high, ushort low) noexcept
     {
         return (uint(high)<<10) + low - 0x35fdc00;
     }
-    static Q_DECL_CONSTEXPR inline uint surrogateToUcs4(QChar high, QChar low) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline uint surrogateToUcs4(QChar high, QChar low) noexcept
     {
         return surrogateToUcs4(high.ucs, low.ucs);
     }
-    static Q_DECL_CONSTEXPR inline ushort highSurrogate(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline ushort highSurrogate(uint ucs4) noexcept
     {
         return ushort((ucs4>>10) + 0xd7c0);
     }
-    static Q_DECL_CONSTEXPR inline ushort lowSurrogate(uint ucs4) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR inline ushort lowSurrogate(uint ucs4) noexcept
     {
         return ushort(ucs4%0x400 + 0xdc00);
     }
 
-    static Category QT_FASTCALL category(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static Direction QT_FASTCALL direction(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static JoiningType QT_FASTCALL joiningType(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static Category QT_FASTCALL category(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static Direction QT_FASTCALL direction(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static JoiningType QT_FASTCALL joiningType(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 #if QT_DEPRECATED_SINCE(5, 3)
-    QT_DEPRECATED static Joining QT_FASTCALL joining(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    QT_DEPRECATED static Joining QT_FASTCALL joining(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 #endif
-    static unsigned char QT_FASTCALL combiningClass(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static unsigned char QT_FASTCALL combiningClass(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
-    static uint QT_FASTCALL mirroredChar(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL hasMirrored(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static uint QT_FASTCALL mirroredChar(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL hasMirrored(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
     static QString QT_FASTCALL decomposition(uint ucs4);
-    static Decomposition QT_FASTCALL decompositionTag(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static Decomposition QT_FASTCALL decompositionTag(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
-    static int QT_FASTCALL digitValue(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static uint QT_FASTCALL toLower(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static uint QT_FASTCALL toUpper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static uint QT_FASTCALL toTitleCase(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static uint QT_FASTCALL toCaseFolded(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static int QT_FASTCALL digitValue(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static uint QT_FASTCALL toLower(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static uint QT_FASTCALL toUpper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static uint QT_FASTCALL toTitleCase(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static uint QT_FASTCALL toCaseFolded(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
-    static Script QT_FASTCALL script(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static Script QT_FASTCALL script(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
-    static UnicodeVersion QT_FASTCALL unicodeVersion(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static UnicodeVersion QT_FASTCALL unicodeVersion(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
-    static UnicodeVersion QT_FASTCALL currentUnicodeVersion() Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static UnicodeVersion QT_FASTCALL currentUnicodeVersion() noexcept Q_DECL_CONST_FUNCTION;
 
-    static bool QT_FASTCALL isPrint(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static Q_DECL_CONSTEXPR inline bool isSpace(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static bool QT_FASTCALL isPrint(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static Q_DECL_CONSTEXPR inline bool isSpace(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     {
         // note that [0x09..0x0d] + 0x85 are exceptional Cc-s and must be handled explicitly
         return ucs4 == 0x20 || (ucs4 <= 0x0d && ucs4 >= 0x09)
                 || (ucs4 > 127 && (ucs4 == 0x85 || ucs4 == 0xa0 || QChar::isSpace_helper(ucs4)));
     }
-    static bool QT_FASTCALL isMark(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL isPunct(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL isSymbol(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static Q_DECL_CONSTEXPR inline bool isLetter(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static bool QT_FASTCALL isMark(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isPunct(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isSymbol(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static Q_DECL_CONSTEXPR inline bool isLetter(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     {
         return (ucs4 >= 'A' && ucs4 <= 'z' && (ucs4 >= 'a' || ucs4 <= 'Z'))
                 || (ucs4 > 127 && QChar::isLetter_helper(ucs4));
     }
-    static Q_DECL_CONSTEXPR inline bool isNumber(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isNumber(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     { return (ucs4 <= '9' && ucs4 >= '0') || (ucs4 > 127 && QChar::isNumber_helper(ucs4)); }
-    static Q_DECL_CONSTEXPR inline bool isLetterOrNumber(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isLetterOrNumber(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     {
         return (ucs4 >= 'A' && ucs4 <= 'z' && (ucs4 >= 'a' || ucs4 <= 'Z'))
                 || (ucs4 >= '0' && ucs4 <= '9')
                 || (ucs4 > 127 && QChar::isLetterOrNumber_helper(ucs4));
     }
-    static Q_DECL_CONSTEXPR inline bool isDigit(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isDigit(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     { return (ucs4 <= '9' && ucs4 >= '0') || (ucs4 > 127 && QChar::category(ucs4) == Number_DecimalDigit); }
-    static Q_DECL_CONSTEXPR inline bool isLower(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isLower(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     { return (ucs4 <= 'z' && ucs4 >= 'a') || (ucs4 > 127 && QChar::category(ucs4) == Letter_Lowercase); }
-    static Q_DECL_CONSTEXPR inline bool isUpper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isUpper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     { return (ucs4 <= 'Z' && ucs4 >= 'A') || (ucs4 > 127 && QChar::category(ucs4) == Letter_Uppercase); }
-    static Q_DECL_CONSTEXPR inline bool isTitleCase(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION
+    static Q_DECL_CONSTEXPR inline bool isTitleCase(uint ucs4) noexcept Q_DECL_CONST_FUNCTION
     { return ucs4 > 127 && QChar::category(ucs4) == Letter_Titlecase; }
 
 private:
-    static bool QT_FASTCALL isSpace_helper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL isLetter_helper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL isNumber_helper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
-    static bool QT_FASTCALL isLetterOrNumber_helper(uint ucs4) Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isSpace_helper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isLetter_helper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isNumber_helper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
+    static bool QT_FASTCALL isLetterOrNumber_helper(uint ucs4) noexcept Q_DECL_CONST_FUNCTION;
 
 #ifdef QT_NO_CAST_FROM_ASCII
-    QChar(char c) Q_DECL_NOTHROW;
-    QChar(uchar c) Q_DECL_NOTHROW;
+    QChar(char c) noexcept;
+    QChar(uchar c) noexcept;
 #endif
 
-    friend Q_DECL_CONSTEXPR bool operator==(QChar, QChar) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR bool operator< (QChar, QChar) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR bool operator==(QChar, QChar) noexcept;
+    friend Q_DECL_CONSTEXPR bool operator< (QChar, QChar) noexcept;
     ushort ucs;
 };
 
 Q_DECLARE_TYPEINFO(QChar, Q_MOVABLE_TYPE);
 
-Q_DECL_CONSTEXPR inline bool operator==(QChar c1, QChar c2) Q_DECL_NOTHROW { return c1.ucs == c2.ucs; }
-Q_DECL_CONSTEXPR inline bool operator< (QChar c1, QChar c2) Q_DECL_NOTHROW { return c1.ucs <  c2.ucs; }
+Q_DECL_CONSTEXPR inline bool operator==(QChar c1, QChar c2) noexcept { return c1.ucs == c2.ucs; }
+Q_DECL_CONSTEXPR inline bool operator< (QChar c1, QChar c2) noexcept { return c1.ucs <  c2.ucs; }
 
-Q_DECL_CONSTEXPR inline bool operator!=(QChar c1, QChar c2) Q_DECL_NOTHROW { return !operator==(c1, c2); }
-Q_DECL_CONSTEXPR inline bool operator>=(QChar c1, QChar c2) Q_DECL_NOTHROW { return !operator< (c1, c2); }
-Q_DECL_CONSTEXPR inline bool operator> (QChar c1, QChar c2) Q_DECL_NOTHROW { return  operator< (c2, c1); }
-Q_DECL_CONSTEXPR inline bool operator<=(QChar c1, QChar c2) Q_DECL_NOTHROW { return !operator< (c2, c1); }
+Q_DECL_CONSTEXPR inline bool operator!=(QChar c1, QChar c2) noexcept { return !operator==(c1, c2); }
+Q_DECL_CONSTEXPR inline bool operator>=(QChar c1, QChar c2) noexcept { return !operator< (c1, c2); }
+Q_DECL_CONSTEXPR inline bool operator> (QChar c1, QChar c2) noexcept { return  operator< (c2, c1); }
+Q_DECL_CONSTEXPR inline bool operator<=(QChar c1, QChar c2) noexcept { return !operator< (c2, c1); }
 
 
-Q_DECL_CONSTEXPR inline bool operator==(QChar lhs, std::nullptr_t) Q_DECL_NOTHROW { return lhs.isNull(); }
-Q_DECL_CONSTEXPR inline bool operator< (QChar,     std::nullptr_t) Q_DECL_NOTHROW { return false; }
-Q_DECL_CONSTEXPR inline bool operator==(std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return rhs.isNull(); }
-Q_DECL_CONSTEXPR inline bool operator< (std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return !rhs.isNull(); }
+Q_DECL_CONSTEXPR inline bool operator==(QChar lhs, std::nullptr_t) noexcept { return lhs.isNull(); }
+Q_DECL_CONSTEXPR inline bool operator< (QChar,     std::nullptr_t) noexcept { return false; }
+Q_DECL_CONSTEXPR inline bool operator==(std::nullptr_t, QChar rhs) noexcept { return rhs.isNull(); }
+Q_DECL_CONSTEXPR inline bool operator< (std::nullptr_t, QChar rhs) noexcept { return !rhs.isNull(); }
 
-Q_DECL_CONSTEXPR inline bool operator!=(QChar lhs, std::nullptr_t) Q_DECL_NOTHROW { return !operator==(lhs, nullptr); }
-Q_DECL_CONSTEXPR inline bool operator>=(QChar lhs, std::nullptr_t) Q_DECL_NOTHROW { return !operator< (lhs, nullptr); }
-Q_DECL_CONSTEXPR inline bool operator> (QChar lhs, std::nullptr_t) Q_DECL_NOTHROW { return  operator< (nullptr, lhs); }
-Q_DECL_CONSTEXPR inline bool operator<=(QChar lhs, std::nullptr_t) Q_DECL_NOTHROW { return !operator< (nullptr, lhs); }
+Q_DECL_CONSTEXPR inline bool operator!=(QChar lhs, std::nullptr_t) noexcept { return !operator==(lhs, nullptr); }
+Q_DECL_CONSTEXPR inline bool operator>=(QChar lhs, std::nullptr_t) noexcept { return !operator< (lhs, nullptr); }
+Q_DECL_CONSTEXPR inline bool operator> (QChar lhs, std::nullptr_t) noexcept { return  operator< (nullptr, lhs); }
+Q_DECL_CONSTEXPR inline bool operator<=(QChar lhs, std::nullptr_t) noexcept { return !operator< (nullptr, lhs); }
 
-Q_DECL_CONSTEXPR inline bool operator!=(std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return !operator==(nullptr, rhs); }
-Q_DECL_CONSTEXPR inline bool operator>=(std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return !operator< (nullptr, rhs); }
-Q_DECL_CONSTEXPR inline bool operator> (std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return  operator< (rhs, nullptr); }
-Q_DECL_CONSTEXPR inline bool operator<=(std::nullptr_t, QChar rhs) Q_DECL_NOTHROW { return !operator< (rhs, nullptr); }
+Q_DECL_CONSTEXPR inline bool operator!=(std::nullptr_t, QChar rhs) noexcept { return !operator==(nullptr, rhs); }
+Q_DECL_CONSTEXPR inline bool operator>=(std::nullptr_t, QChar rhs) noexcept { return !operator< (nullptr, rhs); }
+Q_DECL_CONSTEXPR inline bool operator> (std::nullptr_t, QChar rhs) noexcept { return  operator< (rhs, nullptr); }
+Q_DECL_CONSTEXPR inline bool operator<=(std::nullptr_t, QChar rhs) noexcept { return !operator< (rhs, nullptr); }
 
 #ifndef QT_NO_DATASTREAM
 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, QChar);
diff --git a/src/corelib/tools/qcollator.cpp b/src/corelib/tools/qcollator.cpp
index 76dcf35833..6e85027462 100644
--- a/src/corelib/tools/qcollator.cpp
+++ b/src/corelib/tools/qcollator.cpp
@@ -46,7 +46,6 @@
 
 QT_BEGIN_NAMESPACE
 
-
 /*!
     \class QCollator
     \inmodule QtCore
@@ -59,20 +58,32 @@ QT_BEGIN_NAMESPACE
     \ingroup string-processing
     \ingroup shared
 
-    QCollator is initialized with a QLocale and an optional collation strategy. It tries to
-    initialize the collator with the specified values. The collator can then be used to compare
-    and sort strings in a locale dependent fashion.
+    QCollator is initialized with a QLocale and an optional collation strategy.
+    It tries to initialize the collator with the specified values. The collator
+    can then be used to compare and sort strings in a locale dependent fashion.
 
-    A QCollator object can be used together with template based sorting algorithms such as std::sort
-    to sort a list of QStrings.
+    A QCollator object can be used together with template based sorting
+    algorithms such as std::sort to sort a list of QStrings.
 
-    In addition to the locale and collation strategy, several optional flags can be set that influence
-    the result of the collation.
+    In addition to the locale and collation strategy, several optional flags can
+    be set that influence the result of the collation.
 */
 
 /*!
-    Constructs a QCollator from \a locale. If \a locale is not specified
-    the system's default locale is used.
+  \since 5.13
+
+  Constructs a QCollator using the system's default collation locale.
+
+  \sa setLocale(), QLocale::collation()
+*/
+QCollator::QCollator()
+    : d(new QCollatorPrivate(QLocale::system().collation()))
+{
+    d->init();
+}
+
+/*!
+    Constructs a QCollator from \a locale.
 
     \sa setLocale()
  */
@@ -128,9 +139,9 @@ QCollator &QCollator::operator=(const QCollator &other)
 
     Move constructor. Moves from \a other into this collator.
 
-    Note that a moved-from QCollator can only be destroyed or assigned
-    to. The effect of calling other functions than the destructor or
-    one of the assignment operators is undefined.
+    Note that a moved-from QCollator can only be destroyed or assigned to.
+    The effect of calling other functions than the destructor or one of the
+    assignment operators is undefined.
 */
 
 /*!
@@ -138,9 +149,9 @@ QCollator &QCollator::operator=(const QCollator &other)
 
     Move-assigns from \a other to this collator.
 
-    Note that a moved-from QCollator can only be destroyed or assigned
-    to. The effect of calling other functions than the destructor or
-    one of the assignment operators is undefined.
+    Note that a moved-from QCollator can only be destroyed or assigned to.
+    The effect of calling other functions than the destructor or one of the
+    assignment operators is undefined.
 */
 
 /*!
@@ -218,7 +229,8 @@ Qt::CaseSensitivity QCollator::caseSensitivity() const
 
     Enables numeric sorting mode when \a on is set to true.
 
-    This will enable proper sorting of numeric digits, so that e.g. 100 sorts after 99.
+    This will enable proper sorting of numeric digits, so that e.g. 100 sorts
+    after 99.
 
     By default this mode is off.
 
@@ -248,11 +260,13 @@ bool QCollator::numericMode() const
 /*!
     \fn void QCollator::setIgnorePunctuation(bool on)
 
-    If \a on is set to true, punctuation characters and symbols are ignored when determining sort order.
+    If \a on is set to true, punctuation characters and symbols are ignored when
+    determining sort order.
 
     The default is locale dependent.
 
-    \note This method is not currently supported if Qt is configured to not use ICU on Linux.
+    \note This method is not currently supported if Qt is configured to not use
+    ICU on Linux.
 
     \sa ignorePunctuation()
  */
@@ -268,7 +282,8 @@ void QCollator::setIgnorePunctuation(bool on)
 /*!
     \fn bool QCollator::ignorePunctuation() const
 
-    Returns \c true if punctuation characters and symbols are ignored when determining sort order.
+    Returns \c true if punctuation characters and symbols are ignored when
+    determining sort order.
 
     \sa setIgnorePunctuation()
  */
@@ -278,35 +293,66 @@ bool QCollator::ignorePunctuation() const
 }
 
 /*!
-    \fn int QCollator::compare(const QString &s1, const QString &s2) const
+    \since 5.13
+    \fn bool QCollator::operator()(QStringView s1, QStringView s2) const
+    \internal
+*/
 
-    Compares \a s1 with \a s2. Returns an integer less than, equal to, or greater than zero
-    depending on whether \a s1 is smaller, equal or larger than \a s2.
- */
+/*!
+    \since 5.13
+    \fn int QCollator::compare(QStringView s1, QStringView s2) const
+
+    Compares \a s1 with \a s2.
 
+    Returns an integer less than, equal to, or greater than zero depending on
+    whether \a s1 sorts before, with or after \a s2.
+*/
+#if QT_STRINGVIEW_LEVEL < 2
 /*!
     \fn bool QCollator::operator()(const QString &s1, const QString &s2) const
     \internal
 */
 
 /*!
-    \fn int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
     \overload
 
-    Compares \a s1 with \a s2. Returns an integer less than, equal to, or greater than zero
-    depending on whether \a s1 is smaller, equal or larger than \a s2.
+    Compares \a s1 with \a s2.
+
+    Returns an integer less than, equal to, or greater than zero depending on
+    whether \a s1 sorts before, with or after \a s2.
+*/
+int QCollator::compare(const QString &s1, const QString &s2) const
+{
+    return compare(QStringView(s1), QStringView(s2));
+}
+
+/*!
+    \overload
+
+    Compares \a s1 with \a s2.
+
+    Returns an integer less than, equal to, or greater than zero depending on
+    whether \a s1 sorts before, with or after \a s2.
  */
+int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
+{
+    return compare(QStringView(s1), QStringView(s2));
+}
 
 /*!
-    \fn int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
     \overload
 
-    Compares \a s1 with \a s2. \a len1 and \a len2 specify the length of the
-    QChar arrays pointer to by \a s1 and \a s2.
+    Compares \a s1 with \a s2. \a len1 and \a len2 specify the lengths of the
+    QChar arrays pointed to by \a s1 and \a s2.
 
-    Returns an integer less than, equal to, or greater than zero
-    depending on whether \a s1 is smaller, equal or larger than \a s2.
+    Returns an integer less than, equal to, or greater than zero depending on
+    whether \a s1 sorts before, with or after \a s2.
 */
+int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
+{
+    return compare(QStringView(s1, len1), QStringView(s2, len2));
+}
+#endif // QT_STRINGVIEW_LEVEL < 2
 
 /*!
     \fn QCollatorSortKey QCollator::sortKey(const QString &string) const
@@ -314,9 +360,9 @@ bool QCollator::ignorePunctuation() const
     Returns a sortKey for \a string.
 
     Creating the sort key is usually somewhat slower, than using the compare()
-    methods directly. But if the string is compared repeatedly (e.g. when sorting
-    a whole list of strings), it's usually faster to create the sort keys for each
-    string and then sort using the keys.
+    methods directly. But if the string is compared repeatedly (e.g. when
+    sorting a whole list of strings), it's usually faster to create the sort
+    keys for each string and then sort using the keys.
 
     \note Not supported with the C (a.k.a. POSIX) locale on Darwin.
  */
@@ -328,8 +374,8 @@ bool QCollator::ignorePunctuation() const
 
     \since 5.2
 
-    The QCollatorSortKey class is always created by QCollator::sortKey()
-    and is used for fast strings collation, for example when collating many strings.
+    The QCollatorSortKey class is always created by QCollator::sortKey() and is
+    used for fast strings collation, for example when collating many strings.
 
     \reentrant
     \ingroup i18n
@@ -398,9 +444,11 @@ QCollatorSortKey& QCollatorSortKey::operator=(const QCollatorSortKey &other)
 /*!
     \fn int QCollatorSortKey::compare(const QCollatorSortKey &otherKey) const
 
-    Compares the key to \a otherKey. Returns a negative value if the key
-    is less than \a otherKey, 0 if the key is equal to \a otherKey or a
-    positive value if the key is greater than \a otherKey.
+    Compares this key to \a otherKey.
+
+    Returns a negative value if the key is less than \a otherKey, 0 if the key
+    is equal to \a otherKey or a positive value if the key is greater than \a
+    otherKey.
 
     \sa operator<()
  */
diff --git a/src/corelib/tools/qcollator.h b/src/corelib/tools/qcollator.h
index 6fa199cb0f..6bb5038371 100644
--- a/src/corelib/tools/qcollator.h
+++ b/src/corelib/tools/qcollator.h
@@ -57,11 +57,9 @@ public:
     QCollatorSortKey(const QCollatorSortKey &other);
     ~QCollatorSortKey();
     QCollatorSortKey &operator=(const QCollatorSortKey &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QCollatorSortKey &operator=(QCollatorSortKey &&other) Q_DECL_NOTHROW
+    inline QCollatorSortKey &operator=(QCollatorSortKey &&other) noexcept
     { swap(other); return *this; }
-#endif
-    void swap(QCollatorSortKey &other) Q_DECL_NOTHROW
+    void swap(QCollatorSortKey &other) noexcept
     { d.swap(other.d); }
 
     int compare(const QCollatorSortKey &key) const;
@@ -83,18 +81,17 @@ inline bool operator<(const QCollatorSortKey &lhs, const QCollatorSortKey &rhs)
 class Q_CORE_EXPORT QCollator
 {
 public:
-    explicit QCollator(const QLocale &locale = QLocale());
+    QCollator();
+    explicit QCollator(const QLocale &locale);
     QCollator(const QCollator &);
     ~QCollator();
     QCollator &operator=(const QCollator &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QCollator(QCollator &&other) Q_DECL_NOTHROW
+    QCollator(QCollator &&other) noexcept
         : d(other.d) { other.d = nullptr; }
-    QCollator &operator=(QCollator &&other) Q_DECL_NOTHROW
+    QCollator &operator=(QCollator &&other) noexcept
     { swap(other); return *this; }
-#endif
 
-    void swap(QCollator &other) Q_DECL_NOTHROW
+    void swap(QCollator &other) noexcept
     { qSwap(d, other.d); }
 
     void setLocale(const QLocale &locale);
@@ -109,12 +106,18 @@ public:
     void setIgnorePunctuation(bool on);
     bool ignorePunctuation() const;
 
+#if QT_STRINGVIEW_LEVEL < 2
     int compare(const QString &s1, const QString &s2) const;
     int compare(const QStringRef &s1, const QStringRef &s2) const;
     int compare(const QChar *s1, int len1, const QChar *s2, int len2) const;
 
     bool operator()(const QString &s1, const QString &s2) const
     { return compare(s1, s2) < 0; }
+#endif
+    int compare(QStringView s1, QStringView s2) const;
+
+    bool operator()(QStringView s1, QStringView s2) const
+    { return compare(s1, s2) < 0; }
 
     QCollatorSortKey sortKey(const QString &string) const;
 
diff --git a/src/corelib/tools/qcollator_icu.cpp b/src/corelib/tools/qcollator_icu.cpp
index ab45b9a1a1..8acda45070 100644
--- a/src/corelib/tools/qcollator_icu.cpp
+++ b/src/corelib/tools/qcollator_icu.cpp
@@ -78,7 +78,8 @@ void QCollatorPrivate::init()
     // and does case sensitive comparison.
     // UCOL_QUATERNARY is used as default in a few languages such as Japanese to take care of some
     // additional differences in those languages.
-    UColAttributeValue val = (caseSensitivity == Qt::CaseSensitive) ? UCOL_DEFAULT_STRENGTH : UCOL_SECONDARY;
+    UColAttributeValue val = (caseSensitivity == Qt::CaseSensitive)
+        ? UCOL_DEFAULT_STRENGTH : UCOL_SECONDARY;
 
     status = U_ZERO_ERROR;
     ucol_setAttribute(collator, UCOL_STRENGTH, val, &status);
@@ -91,7 +92,8 @@ void QCollatorPrivate::init()
         qWarning("ucol_setAttribute: numeric collation failed: %d", status);
 
     status = U_ZERO_ERROR;
-    ucol_setAttribute(collator, UCOL_ALTERNATE_HANDLING, ignorePunctuation ? UCOL_SHIFTED : UCOL_NON_IGNORABLE, &status);
+    ucol_setAttribute(collator, UCOL_ALTERNATE_HANDLING,
+                      ignorePunctuation ? UCOL_SHIFTED : UCOL_NON_IGNORABLE, &status);
     if (U_FAILURE(status))
         qWarning("ucol_setAttribute: Alternate handling failed: %d", status);
 
@@ -105,37 +107,20 @@ void QCollatorPrivate::cleanup()
     collator = nullptr;
 }
 
-int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
+int QCollator::compare(QStringView s1, QStringView s2) const
 {
     if (d->dirty)
         d->init();
 
-    if (d->collator)
-        return ucol_strcoll(d->collator, (const UChar *)s1, len1, (const UChar *)s2, len2);
-
-    return QString::compare_helper(s1, len1, s2, len2, d->caseSensitivity);
-}
-
-int QCollator::compare(const QString &s1, const QString &s2) const
-{
-    if (d->dirty)
-        d->init();
-
-    if (d->collator)
-        return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
-
-    return QString::compare(s1, s2, d->caseSensitivity);
-}
-
-int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
-{
-    if (d->dirty)
-        d->init();
-
-    if (d->collator)
-        return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
+    if (d->collator) {
+        return ucol_strcoll(d->collator,
+                            reinterpret_cast<const UChar *>(s1.data()), s1.size(),
+                            reinterpret_cast<const UChar *>(s2.data()), s2.size());
+    }
 
-    return QStringRef::compare(s1, s2, d->caseSensitivity);
+    return QString::compare_helper(s1.data(), s1.size(),
+                                   s2.data(), s2.size(),
+                                   d->caseSensitivity);
 }
 
 QCollatorSortKey QCollator::sortKey(const QString &string) const
diff --git a/src/corelib/tools/qcollator_macx.cpp b/src/corelib/tools/qcollator_macx.cpp
index 42e67e0c12..071d7c048f 100644
--- a/src/corelib/tools/qcollator_macx.cpp
+++ b/src/corelib/tools/qcollator_macx.cpp
@@ -65,12 +65,12 @@ void QCollatorPrivate::init()
         return;
 
     LocaleRef localeRef;
-    int rc = LocaleRefFromLocaleString(QLocalePrivate::get(locale)->bcp47Name().constData(), &localeRef);
-    if (rc != 0)
-        qWarning("couldn't initialize the locale");
+    OSStatus status =
+        LocaleRefFromLocaleString(QLocalePrivate::get(locale)->bcp47Name().constData(), &localeRef);
+    if (status != 0)
+        qWarning("Couldn't initialize the locale (%d)", int(status));
 
     UInt32 options = 0;
-
     if (caseSensitivity == Qt::CaseInsensitive)
         options |= kUCCollateCaseInsensitiveMask;
     if (numericMode)
@@ -78,14 +78,9 @@ void QCollatorPrivate::init()
     if (!ignorePunctuation)
         options |= kUCCollatePunctuationSignificantMask;
 
-    OSStatus status = UCCreateCollator(
-        localeRef,
-        0,
-        options,
-        &collator
-    );
+    status = UCCreateCollator(localeRef, 0, options, &collator);
     if (status != 0)
-        qWarning("Couldn't initialize the collator");
+        qWarning("Couldn't initialize the collator (%d)", int(status));
 
     dirty = false;
 }
@@ -97,18 +92,18 @@ void QCollatorPrivate::cleanup()
     collator = 0;
 }
 
-int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
+int QCollator::compare(QStringView s1, QStringView s2) const
 {
     if (d->dirty)
         d->init();
     if (!d->collator)
-        return QStringView(s1, len1).compare(QStringView(s2, len2), caseSensitivity());
+        return s1.compare(s2, caseSensitivity());
 
     SInt32 result;
     Boolean equivalent;
     UCCompareText(d->collator,
-                  reinterpret_cast<const UniChar *>(s1), len1,
-                  reinterpret_cast<const UniChar *>(s2), len2,
+                  reinterpret_cast<const UniChar *>(s1.data()), s1.size(),
+                  reinterpret_cast<const UniChar *>(s2.data()), s2.size(),
                   &equivalent,
                   &result);
     if (equivalent)
@@ -116,16 +111,6 @@ int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) con
     return result < 0 ? -1 : 1;
 }
 
-int QCollator::compare(const QString &str1, const QString &str2) const
-{
-    return compare(str1.constData(), str1.size(), str2.constData(), str2.size());
-}
-
-int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
-{
-    return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
-}
-
 QCollatorSortKey QCollator::sortKey(const QString &string) const
 {
     if (d->dirty)
@@ -139,13 +124,14 @@ QCollatorSortKey QCollator::sortKey(const QString &string) const
     //Documentation recommends having it 5 times as big as the input
     QVector<UCCollationValue> ret(string.size() * 5);
     ItemCount actualSize;
-    int status = UCGetCollationKey(d->collator, reinterpret_cast<const UniChar *>(string.constData()), string.count(),
-                                   ret.size(), &actualSize, ret.data());
+    int status = UCGetCollationKey(d->collator,
+                                   reinterpret_cast<const UniChar *>(string.constData()),
+                                   string.count(), ret.size(), &actualSize, ret.data());
 
-    ret.resize(actualSize+1);
+    ret.resize(actualSize + 1);
     if (status == kUCOutputBufferTooSmall) {
-        UCGetCollationKey(d->collator, reinterpret_cast<const UniChar *>(string.constData()), string.count(),
-                          ret.size(), &actualSize, ret.data());
+        UCGetCollationKey(d->collator, reinterpret_cast<const UniChar *>(string.constData()),
+                          string.count(), ret.size(), &actualSize, ret.data());
     }
     ret[actualSize] = 0;
     return QCollatorSortKey(new QCollatorSortKeyPrivate(std::move(ret)));
diff --git a/src/corelib/tools/qcollator_posix.cpp b/src/corelib/tools/qcollator_posix.cpp
index 81f97a02e1..9cbc539ebe 100644
--- a/src/corelib/tools/qcollator_posix.cpp
+++ b/src/corelib/tools/qcollator_posix.cpp
@@ -65,7 +65,7 @@ void QCollatorPrivate::cleanup()
 {
 }
 
-static void stringToWCharArray(QVarLengthArray<wchar_t> &ret, const QString &string)
+static void stringToWCharArray(QVarLengthArray<wchar_t> &ret, QStringView string)
 {
     ret.resize(string.length());
     int len = string.toWCharArray(ret.data());
@@ -73,12 +73,7 @@ static void stringToWCharArray(QVarLengthArray<wchar_t> &ret, const QString &str
     ret[len] = 0;
 }
 
-int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
-{
-    return compare(QString::fromRawData(s1, len1), QString::fromRawData(s2, len2));
-}
-
-int QCollator::compare(const QString &s1, const QString &s2) const
+int QCollator::compare(QStringView s1, QStringView s2) const
 {
     if (d->isC())
         return s1.compare(s2, caseSensitivity());
@@ -91,11 +86,6 @@ int QCollator::compare(const QString &s1, const QString &s2) const
     return std::wcscoll(array1.constData(), array2.constData());
 }
 
-int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
-{
-    return compare(s1.toString(), s2.toString());
-}
-
 QCollatorSortKey QCollator::sortKey(const QString &string) const
 {
     if (d->dirty)
diff --git a/src/corelib/tools/qcollator_win.cpp b/src/corelib/tools/qcollator_win.cpp
index 10cfdaa264..9d81de882f 100644
--- a/src/corelib/tools/qcollator_win.cpp
+++ b/src/corelib/tools/qcollator_win.cpp
@@ -87,30 +87,30 @@ void QCollatorPrivate::cleanup()
 {
 }
 
-
-int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
+int QCollator::compare(QStringView s1, QStringView s2) const
 {
     if (d->isC())
-        return QString::compare_helper(s1, len1, s2, len2, d->caseSensitivity);
+        return s1.compare(s2, d->caseSensitivity);
 
     if (d->dirty)
         d->init();
 
     //* from Windows documentation *
-    // Returns one of the following values if successful. To maintain the C runtime convention of
-    // comparing strings, the value 2 can be subtracted from a nonzero return value. Then, the
-    // meaning of <0, ==0, and >0 is consistent with the C runtime.
+    // Returns one of the following values if successful. To maintain the C
+    // runtime convention of comparing strings, the value 2 can be subtracted
+    // from a nonzero return value. Then, the meaning of <0, ==0, and >0 is
+    // consistent with the C runtime.
     // [...] The function returns 0 if it does not succeed.
     // https://docs.microsoft.com/en-us/windows/desktop/api/stringapiset/nf-stringapiset-comparestringex#return-value
 
 #ifndef USE_COMPARESTRINGEX
     const int ret = CompareString(d->localeID, d->collator,
-                                  reinterpret_cast<const wchar_t*>(s1), len1,
-                                  reinterpret_cast<const wchar_t*>(s2), len2);
+                                  reinterpret_cast<const wchar_t *>(s1.data()), s1.size(),
+                                  reinterpret_cast<const wchar_t *>(s2.data()), s2.size());
 #else
     const int ret = CompareStringEx(LPCWSTR(d->localeName.utf16()), d->collator,
-                                    reinterpret_cast<LPCWSTR>(s1), len1,
-                                    reinterpret_cast<LPCWSTR>(s2), len2,
+                                    reinterpret_cast<LPCWSTR>(s1.data()), s1.size(),
+                                    reinterpret_cast<LPCWSTR>(s2.data()), s2.size(),
                                     nullptr, nullptr, 0);
 #endif
     if (Q_LIKELY(ret))
@@ -132,16 +132,6 @@ int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) con
     return 0;
 }
 
-int QCollator::compare(const QString &str1, const QString &str2) const
-{
-    return compare(str1.constData(), str1.size(), str2.constData(), str2.size());
-}
-
-int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
-{
-    return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
-}
-
 QCollatorSortKey QCollator::sortKey(const QString &string) const
 {
     if (d->dirty)
@@ -170,7 +160,9 @@ QCollatorSortKey QCollator::sortKey(const QString &string) const
                            NULL, NULL, 0);
 #endif
     if (finalSize == 0) {
-        qWarning() << "there were problems when generating the ::sortKey by LCMapStringW with error:" << GetLastError();
+        qWarning()
+            << "there were problems when generating the ::sortKey by LCMapStringW with error:"
+            << GetLastError();
     }
     return QCollatorSortKey(new QCollatorSortKeyPrivate(std::move(ret)));
 }
diff --git a/src/corelib/tools/qcommandlineoption.cpp b/src/corelib/tools/qcommandlineoption.cpp
index c2b86014ba..aff684fad2 100644
--- a/src/corelib/tools/qcommandlineoption.cpp
+++ b/src/corelib/tools/qcommandlineoption.cpp
@@ -254,7 +254,7 @@ namespace {
         typedef QString argument_type;
 
         Q_NEVER_INLINE
-        result_type operator()(const QString &name) const Q_DECL_NOEXCEPT
+        result_type operator()(const QString &name) const noexcept
         {
             if (Q_UNLIKELY(name.isEmpty()))
                 return warn("be empty");
@@ -271,7 +271,7 @@ namespace {
         }
 
         Q_NEVER_INLINE
-        static bool warn(const char *what) Q_DECL_NOEXCEPT
+        static bool warn(const char *what) noexcept
         {
             qWarning("QCommandLineOption: Option names cannot %s", what);
             return true;
diff --git a/src/corelib/tools/qcommandlineoption.h b/src/corelib/tools/qcommandlineoption.h
index 276be042de..e2ca64acef 100644
--- a/src/corelib/tools/qcommandlineoption.h
+++ b/src/corelib/tools/qcommandlineoption.h
@@ -71,11 +71,9 @@ public:
     ~QCommandLineOption();
 
     QCommandLineOption &operator=(const QCommandLineOption &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QCommandLineOption &operator=(QCommandLineOption &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QCommandLineOption &operator=(QCommandLineOption &&other) noexcept { swap(other); return *this; }
 
-    void swap(QCommandLineOption &other) Q_DECL_NOTHROW
+    void swap(QCommandLineOption &other) noexcept
     { qSwap(d, other.d); }
 
     QStringList names() const;
diff --git a/src/corelib/tools/qcommandlineparser.cpp b/src/corelib/tools/qcommandlineparser.cpp
index 6817d73143..489724ac47 100644
--- a/src/corelib/tools/qcommandlineparser.cpp
+++ b/src/corelib/tools/qcommandlineparser.cpp
@@ -362,8 +362,10 @@ bool QCommandLineParser::addOption(const QCommandLineOption &option)
 
     if (!optionNames.isEmpty()) {
         for (const QString &name : optionNames) {
-            if (d->nameHash.contains(name))
+            if (d->nameHash.contains(name)) {
+                qWarning() << "QCommandLineParser: already having an option named" << name;
                 return false;
+            }
         }
 
         d->commandLineOptionList.append(option);
diff --git a/src/corelib/tools/qcontainertools_impl.h b/src/corelib/tools/qcontainertools_impl.h
new file mode 100644
index 0000000000..86a16eb32b
--- /dev/null
+++ b/src/corelib/tools/qcontainertools_impl.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
+** Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#if 0
+#pragma qt_sync_skip_header_check
+#pragma qt_sync_stop_processing
+#endif
+
+#ifndef QCONTAINERTOOLS_IMPL_H
+#define QCONTAINERTOOLS_IMPL_H
+
+#include <QtCore/qglobal.h>
+#include <iterator>
+
+#ifndef Q_QDOC
+
+QT_BEGIN_NAMESPACE
+
+namespace QtPrivate
+{
+template <typename Iterator>
+using IfIsInputIterator = typename std::enable_if<
+    std::is_convertible<typename std::iterator_traits<Iterator>::iterator_category, std::input_iterator_tag>::value,
+    bool>::type;
+
+template <typename Iterator>
+using IfIsForwardIterator = typename std::enable_if<
+    std::is_convertible<typename std::iterator_traits<Iterator>::iterator_category, std::forward_iterator_tag>::value,
+    bool>::type;
+
+template <typename Iterator>
+using IfIsNotForwardIterator = typename std::enable_if<
+    !std::is_convertible<typename std::iterator_traits<Iterator>::iterator_category, std::forward_iterator_tag>::value,
+    bool>::type;
+
+template <typename Container,
+          typename InputIterator,
+          IfIsNotForwardIterator<InputIterator> = true>
+void reserveIfForwardIterator(Container *, InputIterator, InputIterator)
+{
+}
+
+template <typename Container,
+          typename ForwardIterator,
+          IfIsForwardIterator<ForwardIterator> = true>
+void reserveIfForwardIterator(Container *c, ForwardIterator f, ForwardIterator l)
+{
+    c->reserve(static_cast<typename Container::size_type>(std::distance(f, l)));
+}
+
+// for detecting expression validity
+template <typename ... T>
+using void_t = void;
+
+template <typename Iterator, typename = void_t<>>
+struct AssociativeIteratorHasKeyAndValue : std::false_type
+{
+};
+
+template <typename Iterator>
+struct AssociativeIteratorHasKeyAndValue<
+        Iterator,
+        void_t<decltype(std::declval<Iterator &>().key()),
+               decltype(std::declval<Iterator &>().value())>
+    >
+    : std::true_type
+{
+};
+
+template <typename Iterator, typename = void_t<>, typename = void_t<>>
+struct AssociativeIteratorHasFirstAndSecond : std::false_type
+{
+};
+
+template <typename Iterator>
+struct AssociativeIteratorHasFirstAndSecond<
+        Iterator,
+        void_t<decltype(std::declval<Iterator &>()->first),
+               decltype(std::declval<Iterator &>()->second)>
+    >
+    : std::true_type
+{
+};
+
+template <typename Iterator>
+using IfAssociativeIteratorHasKeyAndValue =
+    typename std::enable_if<AssociativeIteratorHasKeyAndValue<Iterator>::value, bool>::type;
+
+template <typename Iterator>
+using IfAssociativeIteratorHasFirstAndSecond =
+    typename std::enable_if<AssociativeIteratorHasFirstAndSecond<Iterator>::value, bool>::type;
+
+} // namespace QtPrivate
+
+QT_END_NAMESPACE
+
+#endif // Q_QDOC
+
+#endif // QCONTAINERTOOLS_IMPL_H
diff --git a/src/corelib/tools/qcontiguouscache.h b/src/corelib/tools/qcontiguouscache.h
index fdb9c6d19a..433e3f9ea4 100644
--- a/src/corelib/tools/qcontiguouscache.h
+++ b/src/corelib/tools/qcontiguouscache.h
@@ -107,10 +107,8 @@ public:
 #endif
 
     QContiguousCache<T> &operator=(const QContiguousCache<T> &other);
-#ifdef Q_COMPILER_RVALUE_REFS
     inline QContiguousCache<T> &operator=(QContiguousCache<T> &&other)
     { qSwap(d, other.d); return *this; }
-#endif
     inline void swap(QContiguousCache<T> &other) { qSwap(d, other.d); }
     bool operator==(const QContiguousCache<T> &other) const;
     inline bool operator!=(const QContiguousCache<T> &other) const { return !(*this == other); }
diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp
index 511dbf0db8..cc98f80feb 100644
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -259,7 +259,7 @@ static QString toOffsetString(Qt::DateFormat format, int offset)
 
 #if QT_CONFIG(datestring)
 // Parse offset in [+-]HH[[:]mm] format
-static int fromOffsetString(const QStringRef &offsetString, bool *valid) Q_DECL_NOTHROW
+static int fromOffsetString(const QStringRef &offsetString, bool *valid) noexcept
 {
     *valid = false;
 
@@ -617,6 +617,268 @@ int QDate::weekNumber(int *yearNumber) const
     return week;
 }
 
+static bool inDateTimeRange(qint64 jd, bool start)
+{
+    using Bounds = std::numeric_limits<qint64>;
+    if (jd < Bounds::min() + JULIAN_DAY_FOR_EPOCH)
+        return false;
+    jd -= JULIAN_DAY_FOR_EPOCH;
+    const qint64 maxDay = Bounds::max() / MSECS_PER_DAY;
+    const qint64 minDay = Bounds::min() / MSECS_PER_DAY - 1;
+    // (Divisions rounded towards zero, as MSECS_PER_DAY has factors other than two.)
+    // Range includes start of last day and end of first:
+    if (start)
+        return jd > minDay && jd <= maxDay;
+    return jd >= minDay && jd < maxDay;
+}
+
+static QDateTime toEarliest(const QDate &day, const QDateTime &form)
+{
+    const Qt::TimeSpec spec = form.timeSpec();
+    const int offset = (spec == Qt::OffsetFromUTC) ? form.offsetFromUtc() : 0;
+#if QT_CONFIG(timezone)
+    QTimeZone zone;
+    if (spec == Qt::TimeZone)
+        zone = form.timeZone();
+#endif
+    auto moment = [=](QTime time) {
+        switch (spec) {
+        case Qt::OffsetFromUTC: return QDateTime(day, time, spec, offset);
+#if QT_CONFIG(timezone)
+        case Qt::TimeZone: return QDateTime(day, time, zone);
+#endif
+        default: return QDateTime(day, time, spec);
+        }
+    };
+    // Longest routine time-zone transition is 2 hours:
+    QDateTime when = moment(QTime(2, 0));
+    if (!when.isValid()) {
+        // Noon should be safe ...
+        when = moment(QTime(12, 0));
+        if (!when.isValid()) {
+            // ... unless it's a 24-hour jump (moving the date-line)
+            when = moment(QTime(23, 59, 59, 999));
+            if (!when.isValid())
+                return QDateTime();
+        }
+    }
+    int high = when.time().msecsSinceStartOfDay() / 60000;
+    int low = 0;
+    // Binary chop to the right minute
+    while (high > low + 1) {
+        int mid = (high + low) / 2;
+        QDateTime probe = moment(QTime(mid / 60, mid % 60));
+        if (probe.isValid() && probe.date() == day) {
+            high = mid;
+            when = probe;
+        } else {
+            low = mid;
+        }
+    }
+    return when;
+}
+
+/*!
+    \since 5.14
+    \fn QDateTime QDate::startOfDay(Qt::TimeSpec spec, int offsetSeconds) const
+    \fn QDateTime QDate::startOfDay(const QTimeZone &zone) const
+
+    Returns the start-moment of the day.  Usually, this shall be midnight at the
+    start of the day: however, if a time-zone transition causes the given date
+    to skip over that midnight (e.g. a DST spring-forward skipping from the end
+    of the previous day to 01:00 of the new day), the actual earliest time in
+    the day is returned.  This can only arise when the start-moment is specified
+    in terms of a time-zone (by passing its QTimeZone as \a zone) or in terms of
+    local time (by passing Qt::LocalTime as \a spec; this is its default).
+
+    The \a offsetSeconds is ignored unless \a spec is Qt::OffsetFromUTC, when it
+    gives the implied zone's offset from UTC.  As UTC and such zones have no
+    transitions, the start of the day is QTime(0, 0) in these cases.
+
+    In the rare case of a date that was entirely skipped (this happens when a
+    zone east of the international date-line switches to being west of it), the
+    return shall be invalid.  Passing Qt::TimeZone as \a spec (instead of
+    passing a QTimeZone) or passing an invalid time-zone as \a zone will also
+    produce an invalid result, as shall dates that start outside the range
+    representable by QDateTime.
+
+    \sa endOfDay()
+*/
+QDateTime QDate::startOfDay(Qt::TimeSpec spec, int offsetSeconds) const
+{
+    if (!inDateTimeRange(jd, true))
+        return QDateTime();
+
+    switch (spec) {
+    case Qt::TimeZone: // should pass a QTimeZone instead of Qt::TimeZone
+        qWarning() << "Called QDate::startOfDay(Qt::TimeZone) on" << *this;
+        return QDateTime();
+    case Qt::OffsetFromUTC:
+    case Qt::UTC:
+        return QDateTime(*this, QTime(0, 0), spec, offsetSeconds);
+
+    case Qt::LocalTime:
+        if (offsetSeconds)
+            qWarning("Ignoring offset (%d seconds) passed with Qt::LocalTime", offsetSeconds);
+        break;
+    }
+    QDateTime when(*this, QTime(0, 0), spec);
+    if (!when.isValid())
+        when = toEarliest(*this, when);
+
+    return when.isValid() ? when : QDateTime();
+}
+
+#if QT_CONFIG(timezone)
+/*!
+  \overload
+  \since 5.14
+*/
+QDateTime QDate::startOfDay(const QTimeZone &zone) const
+{
+    if (!inDateTimeRange(jd, true) || !zone.isValid())
+        return QDateTime();
+
+    QDateTime when(*this, QTime(0, 0), zone);
+    if (when.isValid())
+        return when;
+
+    // The start of the day must have fallen in a spring-forward's gap; find the spring-forward:
+    if (zone.hasTransitions()) {
+        QTimeZone::OffsetData tran = zone.previousTransition(QDateTime(*this, QTime(23, 59, 59, 999), zone));
+        const QDateTime &at = tran.atUtc.toTimeZone(zone);
+        if (at.isValid() && at.date() == *this)
+            return at;
+    }
+
+    when = toEarliest(*this, when);
+    return when.isValid() ? when : QDateTime();
+}
+#endif // timezone
+
+static QDateTime toLatest(const QDate &day, const QDateTime &form)
+{
+    const Qt::TimeSpec spec = form.timeSpec();
+    const int offset = (spec == Qt::OffsetFromUTC) ? form.offsetFromUtc() : 0;
+#if QT_CONFIG(timezone)
+    QTimeZone zone;
+    if (spec == Qt::TimeZone)
+        zone = form.timeZone();
+#endif
+    auto moment = [=](QTime time) {
+        switch (spec) {
+        case Qt::OffsetFromUTC: return QDateTime(day, time, spec, offset);
+#if QT_CONFIG(timezone)
+        case Qt::TimeZone: return QDateTime(day, time, zone);
+#endif
+        default: return QDateTime(day, time, spec);
+        }
+    };
+    // Longest routine time-zone transition is 2 hours:
+    QDateTime when = moment(QTime(21, 59, 59, 999));
+    if (!when.isValid()) {
+        // Noon should be safe ...
+        when = moment(QTime(12, 0));
+        if (!when.isValid()) {
+            // ... unless it's a 24-hour jump (moving the date-line)
+            when = moment(QTime(0, 0));
+            if (!when.isValid())
+                return QDateTime();
+        }
+    }
+    int high = 24 * 60;
+    int low = when.time().msecsSinceStartOfDay() / 60000;
+    // Binary chop to the right minute
+    while (high > low + 1) {
+        int mid = (high + low) / 2;
+        QDateTime probe = moment(QTime(mid / 60, mid % 60, 59, 999));
+        if (probe.isValid() && probe.date() == day) {
+            low = mid;
+            when = probe;
+        } else {
+            high = mid;
+        }
+    }
+    return when;
+}
+
+/*!
+    \since 5.14
+    \fn QDateTime QDate::endOfDay(Qt::TimeSpec spec, int offsetSeconds) const
+    \fn QDateTime QDate::endOfDay(const QTimeZone &zone) const
+
+    Returns the end-moment of the day.  Usually, this is one millisecond before
+    the midnight at the end of the day: however, if a time-zone transition
+    causes the given date to skip over that midnight (e.g. a DST spring-forward
+    skipping from just before 23:00 to the start of the next day), the actual
+    latest time in the day is returned.  This can only arise when the
+    start-moment is specified in terms of a time-zone (by passing its QTimeZone
+    as \a zone) or in terms of local time (by passing Qt::LocalTime as \a spec;
+    this is its default).
+
+    The \a offsetSeconds is ignored unless \a spec is Qt::OffsetFromUTC, when it
+    gives the implied zone's offset from UTC.  As UTC and such zones have no
+    transitions, the end of the day is QTime(23, 59, 59, 999) in these cases.
+
+    In the rare case of a date that was entirely skipped (this happens when a
+    zone east of the international date-line switches to being west of it), the
+    return shall be invalid.  Passing Qt::TimeZone as \a spec (instead of
+    passing a QTimeZone) will also produce an invalid result, as shall dates
+    that end outside the range representable by QDateTime.
+
+    \sa startOfDay()
+*/
+QDateTime QDate::endOfDay(Qt::TimeSpec spec, int offsetSeconds) const
+{
+    if (!inDateTimeRange(jd, false))
+        return QDateTime();
+
+    switch (spec) {
+    case Qt::TimeZone: // should pass a QTimeZone instead of Qt::TimeZone
+        qWarning() << "Called QDate::endOfDay(Qt::TimeZone) on" << *this;
+        return QDateTime();
+    case Qt::UTC:
+    case Qt::OffsetFromUTC:
+        return QDateTime(*this, QTime(23, 59, 59, 999), spec, offsetSeconds);
+
+    case Qt::LocalTime:
+        if (offsetSeconds)
+            qWarning("Ignoring offset (%d seconds) passed with Qt::LocalTime", offsetSeconds);
+        break;
+    }
+    QDateTime when(*this, QTime(23, 59, 59, 999), spec);
+    if (!when.isValid())
+        when = toLatest(*this, when);
+    return when.isValid() ? when : QDateTime();
+}
+
+#if QT_CONFIG(timezone)
+/*!
+  \overload
+  \since 5.14
+*/
+QDateTime QDate::endOfDay(const QTimeZone &zone) const
+{
+    if (!inDateTimeRange(jd, false) || !zone.isValid())
+        return QDateTime();
+
+    QDateTime when(*this, QTime(23, 59, 59, 999), zone);
+    if (when.isValid())
+        return when;
+
+    // The end of the day must have fallen in a spring-forward's gap; find the spring-forward:
+    if (zone.hasTransitions()) {
+        QTimeZone::OffsetData tran = zone.nextTransition(QDateTime(*this, QTime(0, 0), zone));
+        const QDateTime &at = tran.atUtc.toTimeZone(zone);
+        if (at.isValid() && at.date() == *this)
+            return at;
+    }
+
+    when = toLatest(*this, when);
+    return when.isValid() ? when : QDateTime();
+}
+#endif // timezone
+
 #if QT_DEPRECATED_SINCE(5, 11) && QT_CONFIG(textdate)
 /*!
     \since 4.5
@@ -1467,9 +1729,9 @@ bool QDate::isLeapYear(int y)
 /*!
     \fn QTime::QTime()
 
-    Constructs a null time object. A null time can be a QTime(0, 0, 0, 0)
-    (i.e., midnight) object, except that isNull() returns \c true and isValid()
-    returns \c false.
+    Constructs a null time object. For a null time, isNull() returns \c true and
+    isValid() returns \c false. If you need a zero time, use QTime(0, 0).  For
+    the start of a day, see QDate::startOfDay().
 
     \sa isNull(), isValid()
 */
@@ -2393,8 +2655,8 @@ static void msecsToTime(qint64 msecs, QDate *date, QTime *time)
     qint64 jd = JULIAN_DAY_FOR_EPOCH;
     qint64 ds = 0;
 
-    if (qAbs(msecs) >= MSECS_PER_DAY) {
-        jd += (msecs / MSECS_PER_DAY);
+    if (msecs >= MSECS_PER_DAY || msecs <= -MSECS_PER_DAY) {
+        jd += msecs / MSECS_PER_DAY;
         msecs %= MSECS_PER_DAY;
     }
 
@@ -3135,7 +3397,7 @@ inline qint64 QDateTimePrivate::zoneMSecsToEpochMSecs(qint64 zoneMSecs, const QT
 
     \sa isValid()
 */
-QDateTime::QDateTime() Q_DECL_NOEXCEPT_EXPR(Data::CanBeSmall)
+QDateTime::QDateTime() noexcept(Data::CanBeSmall)
 {
 }
 
@@ -3146,7 +3408,7 @@ QDateTime::QDateTime() Q_DECL_NOEXCEPT_EXPR(Data::CanBeSmall)
 */
 
 QDateTime::QDateTime(const QDate &date)
-    : d(QDateTimePrivate::create(date, QTime(0, 0, 0), Qt::LocalTime, 0))
+    : d(QDateTimePrivate::create(date, QTime(0, 0), Qt::LocalTime, 0))
 {
 }
 
@@ -3214,7 +3476,7 @@ QDateTime::QDateTime(const QDate &date, const QTime &time, const QTimeZone &time
 /*!
     Constructs a copy of the \a other datetime.
 */
-QDateTime::QDateTime(const QDateTime &other) Q_DECL_NOTHROW
+QDateTime::QDateTime(const QDateTime &other) noexcept
     : d(other.d)
 {
 }
@@ -3224,7 +3486,7 @@ QDateTime::QDateTime(const QDateTime &other) Q_DECL_NOTHROW
     Moves the content of the temporary \a other datetime to this object and
     leaves \a other in an unspecified (but proper) state.
 */
-QDateTime::QDateTime(QDateTime &&other) Q_DECL_NOTHROW
+QDateTime::QDateTime(QDateTime &&other) noexcept
     : d(std::move(other.d))
 {
 }
@@ -3241,7 +3503,7 @@ QDateTime::~QDateTime()
     copy.
 */
 
-QDateTime &QDateTime::operator=(const QDateTime &other) Q_DECL_NOTHROW
+QDateTime &QDateTime::operator=(const QDateTime &other) noexcept
 {
     d = other.d;
     return *this;
@@ -4469,7 +4731,7 @@ QDateTime QDateTime::currentDateTimeUtc()
     return QDateTime(d, t, Qt::UTC);
 }
 
-qint64 QDateTime::currentMSecsSinceEpoch() Q_DECL_NOTHROW
+qint64 QDateTime::currentMSecsSinceEpoch() noexcept
 {
     SYSTEMTIME st;
     memset(&st, 0, sizeof(SYSTEMTIME));
@@ -4480,7 +4742,7 @@ qint64 QDateTime::currentMSecsSinceEpoch() Q_DECL_NOTHROW
                    - julianDayFromDate(1970, 1, 1)) * Q_INT64_C(86400000);
 }
 
-qint64 QDateTime::currentSecsSinceEpoch() Q_DECL_NOTHROW
+qint64 QDateTime::currentSecsSinceEpoch() noexcept
 {
     SYSTEMTIME st;
     memset(&st, 0, sizeof(SYSTEMTIME));
@@ -4512,7 +4774,7 @@ QDateTime QDateTime::currentDateTimeUtc()
     return fromMSecsSinceEpoch(currentMSecsSinceEpoch(), Qt::UTC);
 }
 
-qint64 QDateTime::currentMSecsSinceEpoch() Q_DECL_NOTHROW
+qint64 QDateTime::currentMSecsSinceEpoch() noexcept
 {
     // posix compliant system
     // we have milliseconds
@@ -4521,7 +4783,7 @@ qint64 QDateTime::currentMSecsSinceEpoch() Q_DECL_NOTHROW
     return qint64(tv.tv_sec) * Q_INT64_C(1000) + tv.tv_usec / 1000;
 }
 
-qint64 QDateTime::currentSecsSinceEpoch() Q_DECL_NOTHROW
+qint64 QDateTime::currentSecsSinceEpoch() noexcept
 {
     struct timeval tv;
     gettimeofday(&tv, 0);
@@ -5418,7 +5680,7 @@ uint qHash(const QDateTime &key, uint seed)
 
     Returns the hash value for the \a key, using \a seed to seed the calculation.
 */
-uint qHash(const QDate &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QDate &key, uint seed) noexcept
 {
     return qHash(key.toJulianDay(), seed);
 }
@@ -5429,7 +5691,7 @@ uint qHash(const QDate &key, uint seed) Q_DECL_NOTHROW
 
     Returns the hash value for the \a key, using \a seed to seed the calculation.
 */
-uint qHash(const QTime &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QTime &key, uint seed) noexcept
 {
     return qHash(key.msecsSinceStartOfDay(), seed);
 }
diff --git a/src/corelib/tools/qdatetime.h b/src/corelib/tools/qdatetime.h
index 8b2a60acaa..79fd25d762 100644
--- a/src/corelib/tools/qdatetime.h
+++ b/src/corelib/tools/qdatetime.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -55,6 +55,7 @@ Q_FORWARD_DECLARE_OBJC_CLASS(NSDate);
 QT_BEGIN_NAMESPACE
 
 class QTimeZone;
+class QDateTime;
 
 class Q_CORE_EXPORT QDate
 {
@@ -81,6 +82,13 @@ public:
     int daysInYear() const;
     int weekNumber(int *yearNum = nullptr) const;
 
+    QDateTime startOfDay(Qt::TimeSpec spec = Qt::LocalTime, int offsetSeconds = 0) const;
+    QDateTime endOfDay(Qt::TimeSpec spec = Qt::LocalTime, int offsetSeconds = 0) const;
+#if QT_CONFIG(timezone)
+    QDateTime startOfDay(const QTimeZone &zone) const;
+    QDateTime endOfDay(const QTimeZone &zone) const;
+#endif
+
 #if QT_DEPRECATED_SINCE(5, 10) && QT_CONFIG(textdate)
     QT_DEPRECATED_X("Use QLocale::monthName or QLocale::standaloneMonthName")
         static QString shortMonthName(int month, MonthNameType type = DateFormat);
@@ -258,7 +266,7 @@ class Q_CORE_EXPORT QDateTime
     };
 
 public:
-    QDateTime() Q_DECL_NOEXCEPT_EXPR(Data::CanBeSmall);
+    QDateTime() noexcept(Data::CanBeSmall);
     explicit QDateTime(const QDate &);
     QDateTime(const QDate &, const QTime &, Qt::TimeSpec spec = Qt::LocalTime);
     // ### Qt 6: Merge with above with default offsetSeconds = 0
@@ -266,16 +274,14 @@ public:
 #if QT_CONFIG(timezone)
     QDateTime(const QDate &date, const QTime &time, const QTimeZone &timeZone);
 #endif // timezone
-    QDateTime(const QDateTime &other) Q_DECL_NOTHROW;
-    QDateTime(QDateTime &&other) Q_DECL_NOTHROW;
+    QDateTime(const QDateTime &other) noexcept;
+    QDateTime(QDateTime &&other) noexcept;
     ~QDateTime();
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDateTime &operator=(QDateTime &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
-    QDateTime &operator=(const QDateTime &other) Q_DECL_NOTHROW;
+    QDateTime &operator=(QDateTime &&other) noexcept { swap(other); return *this; }
+    QDateTime &operator=(const QDateTime &other) noexcept;
 
-    void swap(QDateTime &other) Q_DECL_NOTHROW { qSwap(d.d, other.d.d); }
+    void swap(QDateTime &other) noexcept { qSwap(d.d, other.d.d); }
 
     bool isNull() const;
     bool isValid() const;
@@ -366,8 +372,8 @@ public:
     static QDateTime fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone);
 #endif
 
-    static qint64 currentMSecsSinceEpoch() Q_DECL_NOTHROW;
-    static qint64 currentSecsSinceEpoch() Q_DECL_NOTHROW;
+    static qint64 currentMSecsSinceEpoch() noexcept;
+    static qint64 currentSecsSinceEpoch() noexcept;
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
     static QDateTime fromCFDate(CFDateRef date);
@@ -410,8 +416,8 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &);
 // QDateTime is not noexcept for now -- to be revised once
 // timezone and calendaring support is added
 Q_CORE_EXPORT uint qHash(const QDateTime &key, uint seed = 0);
-Q_CORE_EXPORT uint qHash(const QDate &key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT uint qHash(const QTime &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QDate &key, uint seed = 0) noexcept;
+Q_CORE_EXPORT uint qHash(const QTime &key, uint seed = 0) noexcept;
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/tools/qdatetime_p.h b/src/corelib/tools/qdatetime_p.h
index b3d00745d0..6018f8f7b0 100644
--- a/src/corelib/tools/qdatetime_p.h
+++ b/src/corelib/tools/qdatetime_p.h
@@ -135,7 +135,7 @@ public:
 #if QT_CONFIG(timezone)
     static qint64 zoneMSecsToEpochMSecs(qint64 msecs, const QTimeZone &zone,
                                         DaylightStatus hint = UnknownDaylightTime,
-                                        QDate *localDate = 0, QTime *localTime = 0);
+                                        QDate *localDate = nullptr, QTime *localTime = nullptr);
 
     // Inlined for its one caller in qdatetime.cpp
     inline void setUtcOffsetByTZ(qint64 atMSecsSinceEpoch);
diff --git a/src/corelib/tools/qdatetimeparser.cpp b/src/corelib/tools/qdatetimeparser.cpp
index e8470f6cde..e1dc596d2d 100644
--- a/src/corelib/tools/qdatetimeparser.cpp
+++ b/src/corelib/tools/qdatetimeparser.cpp
@@ -47,7 +47,6 @@
 #if QT_CONFIG(timezone)
 #include "qtimezone.h"
 #endif
-#include "qregexp.h"
 #include "qdebug.h"
 
 //#define QDATETIMEPARSER_DEBUG
@@ -1983,7 +1982,7 @@ QString QDateTimeParser::stateName(State s) const
 #if QT_CONFIG(datestring)
 bool QDateTimeParser::fromString(const QString &t, QDate *date, QTime *time) const
 {
-    QDateTime val(QDate(1900, 1, 1), QDATETIMEEDIT_TIME_MIN);
+    QDateTime val(QDate(1900, 1, 1).startOfDay());
     const StateNode tmp = parse(t, -1, val, false);
     if (tmp.state != Acceptable || tmp.conflicts) {
         return false;
@@ -2011,20 +2010,20 @@ QDateTime QDateTimeParser::getMinimum() const
 {
     // Cache the most common case
     if (spec == Qt::LocalTime) {
-        static const QDateTime localTimeMin(QDATETIMEEDIT_DATE_MIN, QDATETIMEEDIT_TIME_MIN, Qt::LocalTime);
+        static const QDateTime localTimeMin(QDATETIMEEDIT_DATE_MIN.startOfDay(Qt::LocalTime));
         return localTimeMin;
     }
-    return QDateTime(QDATETIMEEDIT_DATE_MIN, QDATETIMEEDIT_TIME_MIN, spec);
+    return QDateTime(QDATETIMEEDIT_DATE_MIN.startOfDay(spec));
 }
 
 QDateTime QDateTimeParser::getMaximum() const
 {
     // Cache the most common case
     if (spec == Qt::LocalTime) {
-        static const QDateTime localTimeMax(QDATETIMEEDIT_DATE_MAX, QDATETIMEEDIT_TIME_MAX, Qt::LocalTime);
+        static const QDateTime localTimeMax(QDATETIMEEDIT_DATE_MAX.endOfDay(Qt::LocalTime));
         return localTimeMax;
     }
-    return QDateTime(QDATETIMEEDIT_DATE_MAX, QDATETIMEEDIT_TIME_MAX, spec);
+    return QDateTime(QDATETIMEEDIT_DATE_MAX.endOfDay(spec));
 }
 
 QString QDateTimeParser::getAmPmText(AmPm ap, Case cs) const
diff --git a/src/corelib/tools/qdatetimeparser_p.h b/src/corelib/tools/qdatetimeparser_p.h
index f7e6e351fe..d9e39f0795 100644
--- a/src/corelib/tools/qdatetimeparser_p.h
+++ b/src/corelib/tools/qdatetimeparser_p.h
@@ -65,14 +65,11 @@
 
 QT_REQUIRE_CONFIG(datetimeparser);
 
-#define QDATETIMEEDIT_TIME_MIN QTime(0, 0, 0, 0)
-#define QDATETIMEEDIT_TIME_MAX QTime(23, 59, 59, 999)
+#define QDATETIMEEDIT_TIME_MIN QTime(0, 0) // Prefer QDate::startOfDay()
+#define QDATETIMEEDIT_TIME_MAX QTime(23, 59, 59, 999) // Prefer QDate::endOfDay()
 #define QDATETIMEEDIT_DATE_MIN QDate(100, 1, 1)
 #define QDATETIMEEDIT_COMPAT_DATE_MIN QDate(1752, 9, 14)
 #define QDATETIMEEDIT_DATE_MAX QDate(9999, 12, 31)
-#define QDATETIMEEDIT_DATETIME_MIN QDateTime(QDATETIMEEDIT_DATE_MIN, QDATETIMEEDIT_TIME_MIN)
-#define QDATETIMEEDIT_COMPAT_DATETIME_MIN QDateTime(QDATETIMEEDIT_COMPAT_DATE_MIN, QDATETIMEEDIT_TIME_MIN)
-#define QDATETIMEEDIT_DATETIME_MAX QDateTime(QDATETIMEEDIT_DATE_MAX, QDATETIMEEDIT_TIME_MAX)
 #define QDATETIMEEDIT_DATE_INITIAL QDate(2000, 1, 1)
 
 QT_BEGIN_NAMESPACE
@@ -86,7 +83,7 @@ public:
         DateTimeEdit
     };
     QDateTimeParser(QVariant::Type t, Context ctx)
-        : currentSectionIndex(-1), display(0), cachedDay(-1), parserType(t),
+        : currentSectionIndex(-1), display(nullptr), cachedDay(-1), parserType(t),
         fixday(false), spec(Qt::LocalTime), context(ctx)
     {
         defaultLocale = QLocale::system();
@@ -218,9 +215,9 @@ private:
     ParsedSection parseSection(const QDateTime &currentValue, int sectionIndex,
                                int offset, QString *text) const;
     int findMonth(const QString &str1, int monthstart, int sectionIndex,
-                  QString *monthName = 0, int *used = 0) const;
+                  QString *monthName = nullptr, int *used = nullptr) const;
     int findDay(const QString &str1, int intDaystart, int sectionIndex,
-                QString *dayName = 0, int *used = 0) const;
+                QString *dayName = nullptr, int *used = nullptr) const;
     ParsedSection findTimeZone(QStringRef str, const QDateTime &when,
                                int maxVal, int minVal) const;
 #if QT_CONFIG(timezone)
@@ -236,7 +233,7 @@ private:
         PossiblePM = 3,
         PossibleBoth = 4
     };
-    AmPmFinder findAmPm(QString &str, int index, int *used = 0) const;
+    AmPmFinder findAmPm(QString &str, int index, int *used = nullptr) const;
 #endif // datestring
 
     bool potentialValue(const QStringRef &str, int min, int max, int index,
diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp
index f82048db0f..9169b5c7f1 100644
--- a/src/corelib/tools/qeasingcurve.cpp
+++ b/src/corelib/tools/qeasingcurve.cpp
@@ -339,6 +339,23 @@ struct TCBPoint {
 };
 Q_DECLARE_TYPEINFO(TCBPoint, Q_PRIMITIVE_TYPE);
 
+QDataStream &operator<<(QDataStream &stream, const TCBPoint &point)
+{
+    stream << point._point
+           << point._t
+           << point._c
+           << point._b;
+    return stream;
+}
+
+QDataStream &operator>>(QDataStream &stream, TCBPoint &point)
+{
+    stream >> point._point
+           >> point._t
+           >> point._c
+           >> point._b;
+    return stream;
+}
 
 typedef QVector<TCBPoint> TCBPoints;
 
@@ -363,6 +380,34 @@ public:
 
 };
 
+QDataStream &operator<<(QDataStream &stream, QEasingCurveFunction *func)
+{
+    if (func) {
+        stream << func->_p;
+        stream << func->_a;
+        stream << func->_o;
+        if (stream.version() > QDataStream::Qt_5_12) {
+            stream << func->_bezierCurves;
+            stream << func->_tcbPoints;
+        }
+    }
+    return stream;
+}
+
+QDataStream &operator>>(QDataStream &stream, QEasingCurveFunction *func)
+{
+    if (func) {
+        stream >> func->_p;
+        stream >> func->_a;
+        stream >> func->_o;
+        if (stream.version() > QDataStream::Qt_5_12) {
+            stream >> func->_bezierCurves;
+            stream >> func->_tcbPoints;
+        }
+    }
+    return stream;
+}
+
 static QEasingCurve::EasingFunction curveToFunc(QEasingCurve::Type curve);
 
 qreal QEasingCurveFunction::value(qreal t)
@@ -1480,9 +1525,7 @@ QDataStream &operator<<(QDataStream &stream, const QEasingCurve &easing)
     bool hasConfig = easing.d_ptr->config;
     stream << hasConfig;
     if (hasConfig) {
-        stream << easing.d_ptr->config->_p;
-        stream << easing.d_ptr->config->_a;
-        stream << easing.d_ptr->config->_o;
+        stream << easing.d_ptr->config;
     }
     return stream;
 }
@@ -1515,9 +1558,7 @@ QDataStream &operator>>(QDataStream &stream, QEasingCurve &easing)
     easing.d_ptr->config = nullptr;
     if (hasConfig) {
         QEasingCurveFunction *config = curveToFunctionObject(type);
-        stream >> config->_p;
-        stream >> config->_a;
-        stream >> config->_o;
+        stream >> config;
         easing.d_ptr->config = config;
     }
     return stream;
diff --git a/src/corelib/tools/qeasingcurve.h b/src/corelib/tools/qeasingcurve.h
index 74bde5825a..725ddd5dcc 100644
--- a/src/corelib/tools/qeasingcurve.h
+++ b/src/corelib/tools/qeasingcurve.h
@@ -80,13 +80,11 @@ public:
 
     QEasingCurve &operator=(const QEasingCurve &other)
     { if ( this != &other ) { QEasingCurve copy(other); swap(copy); } return *this; }
-#ifdef Q_COMPILER_RVALUE_REFS
-    QEasingCurve(QEasingCurve &&other) Q_DECL_NOTHROW : d_ptr(other.d_ptr) { other.d_ptr = nullptr; }
-    QEasingCurve &operator=(QEasingCurve &&other) Q_DECL_NOTHROW
+    QEasingCurve(QEasingCurve &&other) noexcept : d_ptr(other.d_ptr) { other.d_ptr = nullptr; }
+    QEasingCurve &operator=(QEasingCurve &&other) noexcept
     { qSwap(d_ptr, other.d_ptr); return *this; }
-#endif
 
-    void swap(QEasingCurve &other) Q_DECL_NOTHROW { qSwap(d_ptr, other.d_ptr); }
+    void swap(QEasingCurve &other) noexcept { qSwap(d_ptr, other.d_ptr); }
 
     bool operator==(const QEasingCurve &other) const;
     inline bool operator!=(const QEasingCurve &other) const
diff --git a/src/corelib/tools/qfreelist_p.h b/src/corelib/tools/qfreelist_p.h
index 63be0952ff..d72d6e1b4b 100644
--- a/src/corelib/tools/qfreelist_p.h
+++ b/src/corelib/tools/qfreelist_p.h
@@ -249,11 +249,11 @@ inline int QFreeList<T, ConstantsType>::next()
 
         if (!v) {
             v = allocate((id & ConstantsType::IndexMask) - at, ConstantsType::Sizes[block]);
-            if (!_v[block].testAndSetRelease(0, v)) {
+            if (!_v[block].testAndSetRelease(nullptr, v)) {
                 // race with another thread lost
                 delete [] v;
                 v = _v[block].loadAcquire();
-                Q_ASSERT(v != 0);
+                Q_ASSERT(v != nullptr);
             }
         }
 
diff --git a/src/corelib/tools/qhash.cpp b/src/corelib/tools/qhash.cpp
index 32e9a4269c..5c7e535c30 100644
--- a/src/corelib/tools/qhash.cpp
+++ b/src/corelib/tools/qhash.cpp
@@ -197,7 +197,7 @@ static uint crc32(...)
 }
 #endif
 
-static inline uint hash(const uchar *p, size_t len, uint seed) Q_DECL_NOTHROW
+static inline uint hash(const uchar *p, size_t len, uint seed) noexcept
 {
     uint h = seed;
 
@@ -210,12 +210,12 @@ static inline uint hash(const uchar *p, size_t len, uint seed) Q_DECL_NOTHROW
     return h;
 }
 
-uint qHashBits(const void *p, size_t len, uint seed) Q_DECL_NOTHROW
+uint qHashBits(const void *p, size_t len, uint seed) noexcept
 {
     return hash(static_cast<const uchar*>(p), int(len), seed);
 }
 
-static inline uint hash(const QChar *p, size_t len, uint seed) Q_DECL_NOTHROW
+static inline uint hash(const QChar *p, size_t len, uint seed) noexcept
 {
     uint h = seed;
 
@@ -228,29 +228,29 @@ static inline uint hash(const QChar *p, size_t len, uint seed) Q_DECL_NOTHROW
     return h;
 }
 
-uint qHash(const QByteArray &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QByteArray &key, uint seed) noexcept
 {
     return hash(reinterpret_cast<const uchar *>(key.constData()), size_t(key.size()), seed);
 }
 
 #if QT_STRINGVIEW_LEVEL < 2
-uint qHash(const QString &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QString &key, uint seed) noexcept
 {
     return hash(key.unicode(), size_t(key.size()), seed);
 }
 
-uint qHash(const QStringRef &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QStringRef &key, uint seed) noexcept
 {
     return hash(key.unicode(), size_t(key.size()), seed);
 }
 #endif
 
-uint qHash(QStringView key, uint seed) Q_DECL_NOTHROW
+uint qHash(QStringView key, uint seed) noexcept
 {
     return hash(key.data(), key.size(), seed);
 }
 
-uint qHash(const QBitArray &bitArray, uint seed) Q_DECL_NOTHROW
+uint qHash(const QBitArray &bitArray, uint seed) noexcept
 {
     int m = bitArray.d.size() - 1;
     uint result = hash(reinterpret_cast<const uchar *>(bitArray.d.constData()),
@@ -264,7 +264,7 @@ uint qHash(const QBitArray &bitArray, uint seed) Q_DECL_NOTHROW
     return result;
 }
 
-uint qHash(QLatin1String key, uint seed) Q_DECL_NOTHROW
+uint qHash(QLatin1String key, uint seed) noexcept
 {
     return hash(reinterpret_cast<const uchar *>(key.data()), size_t(key.size()), seed);
 }
@@ -398,7 +398,7 @@ void qSetGlobalQHashSeed(int newSeed)
     This function can hash discontiguous memory by invoking it on each chunk,
     passing the previous's result in the next call's \a chained argument.
 */
-uint qt_hash(QStringView key, uint chained) Q_DECL_NOTHROW
+uint qt_hash(QStringView key, uint chained) noexcept
 {
     auto n = key.size();
     auto p = key.utf16();
@@ -938,7 +938,7 @@ void QHashData::checkSanity()
 
     Returns the hash value for the \a key, using \a seed to seed the calculation.
 */
-uint qHash(float key, uint seed) Q_DECL_NOTHROW
+uint qHash(float key, uint seed) noexcept
 {
     return key != 0.0f ? hash(reinterpret_cast<const uchar *>(&key), sizeof(key), seed) : seed ;
 }
@@ -948,7 +948,7 @@ uint qHash(float key, uint seed) Q_DECL_NOTHROW
 
     Returns the hash value for the \a key, using \a seed to seed the calculation.
 */
-uint qHash(double key, uint seed) Q_DECL_NOTHROW
+uint qHash(double key, uint seed) noexcept
 {
     return key != 0.0  ? hash(reinterpret_cast<const uchar *>(&key), sizeof(key), seed) : seed ;
 }
@@ -959,7 +959,7 @@ uint qHash(double key, uint seed) Q_DECL_NOTHROW
 
     Returns the hash value for the \a key, using \a seed to seed the calculation.
 */
-uint qHash(long double key, uint seed) Q_DECL_NOTHROW
+uint qHash(long double key, uint seed) noexcept
 {
     return key != 0.0L ? hash(reinterpret_cast<const uchar *>(&key), sizeof(key), seed) : seed ;
 }
@@ -1251,6 +1251,17 @@ uint qHash(long double key, uint seed) Q_DECL_NOTHROW
     compiled in C++11 mode.
 */
 
+/*! \fn template <class Key, class T> template <class InputIterator> QHash<Key, T>::QHash(InputIterator begin, InputIterator end)
+    \since 5.14
+
+    Constructs a hash with a copy of each of the elements in the iterator range
+    [\a begin, \a end). Either the elements iterated by the range must be
+    objects with \c{first} and \c{second} data members (like \c{QPair},
+    \c{std::pair}, etc.) convertible to \c Key and to \c T respectively; or the
+    iterators must have \c{key()} and \c{value()} member functions, returning a
+    key convertible to \c Key and a value convertible to \c T respectively.
+*/
+
 /*! \fn template <class Key, class T> QHash<Key, T>::QHash(const QHash &other)
 
     Constructs a copy of \a other.
@@ -2586,6 +2597,17 @@ uint qHash(long double key, uint seed) Q_DECL_NOTHROW
     \sa operator=()
 */
 
+/*! \fn template <class Key, class T> template <class InputIterator> QMultiHash::QMultiHash(InputIterator begin, InputIterator end)
+    \since 5.14
+
+    Constructs a multi-hash with a copy of each of the elements in the iterator range
+    [\a begin, \a end). Either the elements iterated by the range must be
+    objects with \c{first} and \c{second} data members (like \c{QPair},
+    \c{std::pair}, etc.) convertible to \c Key and to \c T respectively; or the
+    iterators must have \c{key()} and \c{value()} member functions, returning a
+    key convertible to \c Key and a value convertible to \c T respectively.
+*/
+
 /*! \fn template <class Key, class T> QMultiHash<Key, T>::iterator QMultiHash<Key, T>::replace(const Key &key, const T &value)
 
     Inserts a new item with the \a key and a value of \a value.
diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index a586ca5671..4b4cb2d5f0 100644
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -46,12 +46,10 @@
 #include <QtCore/qlist.h>
 #include <QtCore/qrefcount.h>
 #include <QtCore/qhashfunctions.h>
-
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-#include <initializer_list>
-#endif
+#include <QtCore/qcontainertools_impl.h>
 
 #include <algorithm>
+#include <initializer_list>
 
 #if defined(Q_CC_MSVC)
 #pragma warning( push )
@@ -240,8 +238,7 @@ class QHash
     static inline int alignOfNode() { return qMax<int>(sizeof(void*), Q_ALIGNOF(Node)); }
 
 public:
-    inline QHash() Q_DECL_NOTHROW : d(const_cast<QHashData *>(&QHashData::shared_null)) { }
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    inline QHash() noexcept : d(const_cast<QHashData *>(&QHashData::shared_null)) { }
     inline QHash(std::initializer_list<std::pair<Key,T> > list)
         : d(const_cast<QHashData *>(&QHashData::shared_null))
     {
@@ -249,17 +246,36 @@ public:
         for (typename std::initializer_list<std::pair<Key,T> >::const_iterator it = list.begin(); it != list.end(); ++it)
             insert(it->first, it->second);
     }
-#endif
     QHash(const QHash &other) : d(other.d) { d->ref.ref(); if (!d->sharable) detach(); }
     ~QHash() { if (!d->ref.deref()) freeData(d); }
 
     QHash &operator=(const QHash &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QHash(QHash &&other) Q_DECL_NOTHROW : d(other.d) { other.d = const_cast<QHashData *>(&QHashData::shared_null); }
-    QHash &operator=(QHash &&other) Q_DECL_NOTHROW
+    QHash(QHash &&other) noexcept : d(other.d) { other.d = const_cast<QHashData *>(&QHashData::shared_null); }
+    QHash &operator=(QHash &&other) noexcept
     { QHash moved(std::move(other)); swap(moved); return *this; }
+#ifdef Q_QDOC
+    template <typename InputIterator>
+    QHash(InputIterator f, InputIterator l);
+#else
+    template <typename InputIterator, QtPrivate::IfAssociativeIteratorHasKeyAndValue<InputIterator> = true>
+    QHash(InputIterator f, InputIterator l)
+        : QHash()
+    {
+        QtPrivate::reserveIfForwardIterator(this, f, l);
+        for (; f != l; ++f)
+            insert(f.key(), f.value());
+    }
+
+    template <typename InputIterator, QtPrivate::IfAssociativeIteratorHasFirstAndSecond<InputIterator> = true>
+    QHash(InputIterator f, InputIterator l)
+        : QHash()
+    {
+        QtPrivate::reserveIfForwardIterator(this, f, l);
+        for (; f != l; ++f)
+            insert(f->first, f->second);
+    }
 #endif
-    void swap(QHash &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QHash &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QHash &other) const;
     bool operator!=(const QHash &other) const { return !(*this == other); }
@@ -473,7 +489,7 @@ public:
     inline const_key_value_iterator constKeyValueEnd() const { return const_key_value_iterator(end()); }
 
     QPair<iterator, iterator> equal_range(const Key &key);
-    QPair<const_iterator, const_iterator> equal_range(const Key &key) const Q_DECL_NOTHROW;
+    QPair<const_iterator, const_iterator> equal_range(const Key &key) const noexcept;
     iterator erase(iterator it) { return erase(const_iterator(it.i)); }
     iterator erase(const_iterator it);
 
@@ -512,11 +528,11 @@ private:
 
     static void duplicateNode(QHashData::Node *originalNode, void *newNode);
 
-    bool isValidIterator(const iterator &it) const Q_DECL_NOTHROW
+    bool isValidIterator(const iterator &it) const noexcept
     { return isValidNode(it.i); }
-    bool isValidIterator(const const_iterator &it) const Q_DECL_NOTHROW
+    bool isValidIterator(const const_iterator &it) const noexcept
     { return isValidNode(it.i); }
-    bool isValidNode(QHashData::Node *node) const Q_DECL_NOTHROW
+    bool isValidNode(QHashData::Node *node) const noexcept
     {
 #if defined(QT_DEBUG) && !defined(Q_HASH_NO_ITERATOR_DEBUG)
         while (node->next)
@@ -993,7 +1009,7 @@ QPair<typename QHash<Key, T>::iterator, typename QHash<Key, T>::iterator> QHash<
 }
 
 template <class Key, class T>
-QPair<typename QHash<Key, T>::const_iterator, typename QHash<Key, T>::const_iterator> QHash<Key, T>::equal_range(const Key &akey) const Q_DECL_NOTHROW
+QPair<typename QHash<Key, T>::const_iterator, typename QHash<Key, T>::const_iterator> QHash<Key, T>::equal_range(const Key &akey) const noexcept
 {
     Node *node = *findNode(akey);
     const_iterator firstIt = const_iterator(node);
@@ -1020,23 +1036,39 @@ template <class Key, class T>
 class QMultiHash : public QHash<Key, T>
 {
 public:
-    QMultiHash() Q_DECL_NOTHROW {}
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    QMultiHash() noexcept {}
     inline QMultiHash(std::initializer_list<std::pair<Key,T> > list)
     {
         this->reserve(int(list.size()));
         for (typename std::initializer_list<std::pair<Key,T> >::const_iterator it = list.begin(); it != list.end(); ++it)
             insert(it->first, it->second);
     }
+#ifdef Q_QDOC
+    template <typename InputIterator>
+    QMultiHash(InputIterator f, InputIterator l);
+#else
+    template <typename InputIterator, QtPrivate::IfAssociativeIteratorHasKeyAndValue<InputIterator> = true>
+    QMultiHash(InputIterator f, InputIterator l)
+    {
+        QtPrivate::reserveIfForwardIterator(this, f, l);
+        for (; f != l; ++f)
+            insert(f.key(), f.value());
+    }
+
+    template <typename InputIterator, QtPrivate::IfAssociativeIteratorHasFirstAndSecond<InputIterator> = true>
+    QMultiHash(InputIterator f, InputIterator l)
+    {
+        QtPrivate::reserveIfForwardIterator(this, f, l);
+        for (; f != l; ++f)
+            insert(f->first, f->second);
+    }
 #endif
     // compiler-generated copy/move ctors/assignment operators are fine!
     // compiler-generated destructor is fine!
 
     QMultiHash(const QHash<Key, T> &other) : QHash<Key, T>(other) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QMultiHash(QHash<Key, T> &&other) Q_DECL_NOTHROW : QHash<Key, T>(std::move(other)) {}
-#endif
-    void swap(QMultiHash &other) Q_DECL_NOTHROW { QHash<Key, T>::swap(other); } // prevent QMultiHash<->QHash swaps
+    QMultiHash(QHash<Key, T> &&other) noexcept : QHash<Key, T>(std::move(other)) {}
+    void swap(QMultiHash &other) noexcept { QHash<Key, T>::swap(other); } // prevent QMultiHash<->QHash swaps
 
     inline typename QHash<Key, T>::iterator replace(const Key &key, const T &value)
     { return QHash<Key, T>::insert(key, value); }
@@ -1130,7 +1162,7 @@ Q_DECLARE_MUTABLE_ASSOCIATIVE_ITERATOR(Hash)
 
 template <class Key, class T>
 uint qHash(const QHash<Key, T> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(std::declval<Key&>())) && noexcept(qHash(std::declval<T&>())))
+    noexcept(noexcept(qHash(std::declval<Key&>())) && noexcept(qHash(std::declval<T&>())))
 {
     QtPrivate::QHashCombineCommutative hash;
     for (auto it = key.begin(), end = key.end(); it != end; ++it) {
@@ -1143,7 +1175,7 @@ uint qHash(const QHash<Key, T> &key, uint seed = 0)
 
 template <class Key, class T>
 inline uint qHash(const QMultiHash<Key, T> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(std::declval<Key&>())) && noexcept(qHash(std::declval<T&>())))
+    noexcept(noexcept(qHash(std::declval<Key&>())) && noexcept(qHash(std::declval<T&>())))
 {
     const QHash<Key, T> &key2 = key;
     return qHash(key2, seed);
diff --git a/src/corelib/tools/qhashfunctions.h b/src/corelib/tools/qhashfunctions.h
index d013c26d66..5e714806ff 100644
--- a/src/corelib/tools/qhashfunctions.h
+++ b/src/corelib/tools/qhashfunctions.h
@@ -67,54 +67,54 @@ class QLatin1String;
 Q_CORE_EXPORT int qGlobalQHashSeed();
 Q_CORE_EXPORT void qSetGlobalQHashSeed(int newSeed);
 
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHashBits(const void *p, size_t size, uint seed = 0) Q_DECL_NOTHROW;
-
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(char key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(uchar key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(signed char key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ushort key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(short key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(uint key, uint seed = 0) Q_DECL_NOTHROW { return key ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(int key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ulong key, uint seed = 0) Q_DECL_NOTHROW
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHashBits(const void *p, size_t size, uint seed = 0) noexcept;
+
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(char key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(uchar key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(signed char key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ushort key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(short key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(uint key, uint seed = 0) noexcept { return key ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(int key, uint seed = 0) noexcept { return uint(key) ^ seed; }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ulong key, uint seed = 0) noexcept
 {
     return (sizeof(ulong) > sizeof(uint))
         ? (uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed)
         : (uint(key & (~0U)) ^ seed);
 }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(long key, uint seed = 0) Q_DECL_NOTHROW { return qHash(ulong(key), seed); }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(quint64 key, uint seed = 0) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(long key, uint seed = 0) noexcept { return qHash(ulong(key), seed); }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(quint64 key, uint seed = 0) noexcept
 {
     return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed;
 }
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(qint64 key, uint seed = 0) Q_DECL_NOTHROW { return qHash(quint64(key), seed); }
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(float key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(double key, uint seed = 0) Q_DECL_NOTHROW;
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(qint64 key, uint seed = 0) noexcept { return qHash(quint64(key), seed); }
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(float key, uint seed = 0) noexcept;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(double key, uint seed = 0) noexcept;
 #if !defined(Q_OS_DARWIN) || defined(Q_CLANG_QDOC)
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(long double key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION uint qHash(long double key, uint seed = 0) noexcept;
 #endif
-Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(const QChar key, uint seed = 0) Q_DECL_NOTHROW { return qHash(key.unicode(), seed); }
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QByteArray &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(const QChar key, uint seed = 0) noexcept { return qHash(key.unicode(), seed); }
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QByteArray &key, uint seed = 0) noexcept;
 #if QT_STRINGVIEW_LEVEL < 2
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QString &key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QStringRef &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QString &key, uint seed = 0) noexcept;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QStringRef &key, uint seed = 0) noexcept;
 #endif
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(QStringView key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QBitArray &key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(QLatin1String key, uint seed = 0) Q_DECL_NOTHROW;
-Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qt_hash(QStringView key, uint chained = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(QStringView key, uint seed = 0) noexcept;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QBitArray &key, uint seed = 0) noexcept;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qHash(QLatin1String key, uint seed = 0) noexcept;
+Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qt_hash(QStringView key, uint chained = 0) noexcept;
 
-Q_DECL_CONST_FUNCTION inline uint qHash(std::nullptr_t, uint seed = 0) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION inline uint qHash(std::nullptr_t, uint seed = 0) noexcept
 {
     return qHash(reinterpret_cast<quintptr>(nullptr), seed);
 }
 
-template <class T> inline uint qHash(const T *key, uint seed = 0) Q_DECL_NOTHROW
+template <class T> inline uint qHash(const T *key, uint seed = 0) noexcept
 {
     return qHash(reinterpret_cast<quintptr>(key), seed);
 }
 template<typename T> inline uint qHash(const T &t, uint seed)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(t)))
+    noexcept(noexcept(qHash(t)))
 { return qHash(t) ^ seed; }
 
 namespace QtPrivate {
@@ -122,7 +122,7 @@ namespace QtPrivate {
 struct QHashCombine {
     typedef uint result_type;
     template <typename T>
-    Q_DECL_CONSTEXPR result_type operator()(uint seed, const T &t) const Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(t)))
+    Q_DECL_CONSTEXPR result_type operator()(uint seed, const T &t) const noexcept(noexcept(qHash(t)))
     // combiner taken from N3876 / boost::hash_combine
     { return seed ^ (qHash(t) + 0x9e3779b9 + (seed << 6) + (seed >> 2)) ; }
 };
@@ -135,7 +135,7 @@ struct QHashCombineCommutative {
     // QHash). Therefore, provide a commutative combiner, too.
     typedef uint result_type;
     template <typename T>
-    Q_DECL_CONSTEXPR result_type operator()(uint seed, const T &t) const Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(t)))
+    Q_DECL_CONSTEXPR result_type operator()(uint seed, const T &t) const noexcept(noexcept(qHash(t)))
     { return seed + qHash(t); } // don't use xor!
 };
 
@@ -143,20 +143,20 @@ struct QHashCombineCommutative {
 
 template <typename InputIterator>
 inline uint qHashRange(InputIterator first, InputIterator last, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(*first))) // assume iterator operations don't throw
+    noexcept(noexcept(qHash(*first))) // assume iterator operations don't throw
 {
     return std::accumulate(first, last, seed, QtPrivate::QHashCombine());
 }
 
 template <typename InputIterator>
 inline uint qHashRangeCommutative(InputIterator first, InputIterator last, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(*first))) // assume iterator operations don't throw
+    noexcept(noexcept(qHash(*first))) // assume iterator operations don't throw
 {
     return std::accumulate(first, last, seed, QtPrivate::QHashCombineCommutative());
 }
 
 template <typename T1, typename T2> inline uint qHash(const QPair<T1, T2> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(key.first, seed)) && noexcept(qHash(key.second, seed)))
+    noexcept(noexcept(qHash(key.first, seed)) && noexcept(qHash(key.second, seed)))
 {
     uint h1 = qHash(key.first, seed);
     uint h2 = qHash(key.second, seed);
@@ -164,7 +164,7 @@ template <typename T1, typename T2> inline uint qHash(const QPair<T1, T2> &key,
 }
 
 template <typename T1, typename T2> inline uint qHash(const std::pair<T1, T2> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(key.first, seed)) && noexcept(qHash(key.second, seed)))
+    noexcept(noexcept(qHash(key.first, seed)) && noexcept(qHash(key.second, seed)))
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.first);
diff --git a/src/corelib/tools/qiterator.h b/src/corelib/tools/qiterator.h
index 586d26cbad..82212c3eb5 100644
--- a/src/corelib/tools/qiterator.h
+++ b/src/corelib/tools/qiterator.h
@@ -190,15 +190,15 @@ public:
     typedef const value_type &reference;
 
     QKeyValueIterator() = default;
-    Q_DECL_CONSTEXPR explicit QKeyValueIterator(Iterator o) Q_DECL_NOEXCEPT_EXPR(std::is_nothrow_move_constructible<Iterator>::value)
+    Q_DECL_CONSTEXPR explicit QKeyValueIterator(Iterator o) noexcept(std::is_nothrow_move_constructible<Iterator>::value)
         : i(std::move(o)) {}
 
     std::pair<Key, T> operator*() const {
         return std::pair<Key, T>(i.key(), i.value());
     }
 
-    friend bool operator==(QKeyValueIterator lhs, QKeyValueIterator rhs) Q_DECL_NOEXCEPT { return lhs.i == rhs.i; }
-    friend bool operator!=(QKeyValueIterator lhs, QKeyValueIterator rhs) Q_DECL_NOEXCEPT { return lhs.i != rhs.i; }
+    friend bool operator==(QKeyValueIterator lhs, QKeyValueIterator rhs) noexcept { return lhs.i == rhs.i; }
+    friend bool operator!=(QKeyValueIterator lhs, QKeyValueIterator rhs) noexcept { return lhs.i != rhs.i; }
 
     inline QKeyValueIterator &operator++() { ++i; return *this; }
     inline QKeyValueIterator operator++(int) { return QKeyValueIterator(i++);}
diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp
index 949f63ea15..3afd23d76b 100644
--- a/src/corelib/tools/qline.cpp
+++ b/src/corelib/tools/qline.cpp
@@ -347,7 +347,7 @@ QDataStream &operator>>(QDataStream &stream, QLine &line)
     function to determine whether the QLineF represents a valid line
     or a null line.
 
-    The intersect() function determines the IntersectType for this
+    The intersects() function determines the IntersectionType for this
     line and a given line, while the angleTo() function returns the
     angle between the lines. In addition, the unitVector() function
     returns a line that has the same starting point as this line, but
@@ -370,6 +370,11 @@ QDataStream &operator>>(QDataStream &stream, QLine &line)
 
 /*!
     \enum QLineF::IntersectType
+    \obsolete Use QLineF::IntersectionType instead
+*/
+
+/*!
+    \enum QLineF::IntersectionType
 
     Describes the intersection between two lines.
 
@@ -657,8 +662,10 @@ QLineF QLineF::unitVector() const
     return f;
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
     \fn QLineF::IntersectType QLineF::intersect(const QLineF &line, QPointF *intersectionPoint) const
+    \obsolete Use intersects() instead
 
     Returns a value indicating whether or not \e this line intersects
     with the given \a line.
@@ -670,6 +677,23 @@ QLineF QLineF::unitVector() const
 
 QLineF::IntersectType QLineF::intersect(const QLineF &l, QPointF *intersectionPoint) const
 {
+    return intersects(l, intersectionPoint);
+}
+#endif
+
+/*!
+    \fn QLineF::IntersectionType QLineF::intersects(const QLineF &line, QPointF *intersectionPoint) const
+    \since 5.14
+
+    Returns a value indicating whether or not \e this line intersects
+    with the given \a line.
+
+    The actual intersection point is extracted to \a intersectionPoint
+    (if the pointer is valid). If the lines are parallel, the
+    intersection point is undefined.
+*/
+QLineF::IntersectionType QLineF::intersects(const QLineF &l, QPointF *intersectionPoint) const
+{
     // ipmlementation is based on Graphics Gems III's "Faster Line Segment Intersection"
     const QPointF a = pt2 - pt1;
     const QPointF b = l.pt1 - l.pt2;
@@ -805,6 +829,7 @@ qreal QLineF::angleTo(const QLineF &l) const
         return delta_normalized;
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
   \fn qreal QLineF::angle(const QLineF &line) const
 
@@ -837,6 +862,7 @@ qreal QLineF::angle(const QLineF &l) const
     if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line );
     return rad * 360 / M_2PI;
 }
+#endif
 
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/corelib/tools/qline.h b/src/corelib/tools/qline.h
index 6361c1af9f..c96d624afd 100644
--- a/src/corelib/tools/qline.h
+++ b/src/corelib/tools/qline.h
@@ -215,6 +215,7 @@ class Q_CORE_EXPORT QLineF {
 public:
 
     enum IntersectType { NoIntersection, BoundedIntersection, UnboundedIntersection };
+    using IntersectionType = IntersectType;
 
     Q_DECL_CONSTEXPR inline QLineF();
     Q_DECL_CONSTEXPR inline QLineF(const QPointF &pt1, const QPointF &pt2);
@@ -248,10 +249,14 @@ public:
     Q_REQUIRED_RESULT QLineF unitVector() const;
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QLineF normalVector() const;
 
-    // ### Qt 6: rename intersects() or intersection() and rename IntersectType IntersectionType
-    IntersectType intersect(const QLineF &l, QPointF *intersectionPoint) const;
+    IntersectionType intersects(const QLineF &l, QPointF *intersectionPoint) const;
 
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_VERSION_X(5, 14, "Use intersects() instead")
+    IntersectType intersect(const QLineF &l, QPointF *intersectionPoint) const;
+    QT_DEPRECATED_X("Use angleTo() instead, take care that the return value is between 0 and 360 degree.")
     qreal angle(const QLineF &l) const;
+#endif
 
     Q_DECL_CONSTEXPR inline QPointF pointAt(qreal t) const;
     inline void translate(const QPointF &p);
diff --git a/src/corelib/tools/qlinkedlist.cpp b/src/corelib/tools/qlinkedlist.cpp
index d9d93862e5..c0450f5cd8 100644
--- a/src/corelib/tools/qlinkedlist.cpp
+++ b/src/corelib/tools/qlinkedlist.cpp
@@ -153,6 +153,14 @@ const QLinkedListData QLinkedListData::shared_null = {
     initializer lists.
 */
 
+/*! \fn template <class T> template<typename InputIterator> QLinkedList<T>::QLinkedList(InputIterator first, InputIterator last)
+    \since 5.14
+
+    Constructs a list with the contents in the iterator range [\a first, \a last).
+
+    The value type of \c InputIterator must be convertible to \c T.
+*/
+
 /*! \fn template <class T> QLinkedList<T>::~QLinkedList()
 
     Destroys the list. References to the values in the list, and all
diff --git a/src/corelib/tools/qlinkedlist.h b/src/corelib/tools/qlinkedlist.h
index 1e6d4df474..8994449fbf 100644
--- a/src/corelib/tools/qlinkedlist.h
+++ b/src/corelib/tools/qlinkedlist.h
@@ -42,16 +42,13 @@
 
 #include <QtCore/qiterator.h>
 #include <QtCore/qrefcount.h>
+#include <QtCore/qcontainertools_impl.h>
 
+#include <algorithm>
+#include <initializer_list>
 #include <iterator>
 #include <list>
 
-#include <algorithm>
-
-#if defined(Q_COMPILER_INITIALIZER_LISTS)
-# include <initializer_list>
-#endif
-
 QT_BEGIN_NAMESPACE
 
 
@@ -80,24 +77,23 @@ class QLinkedList
     union { QLinkedListData *d; QLinkedListNode<T> *e; };
 
 public:
-    inline QLinkedList() Q_DECL_NOTHROW : d(const_cast<QLinkedListData *>(&QLinkedListData::shared_null)) { }
+    inline QLinkedList() noexcept : d(const_cast<QLinkedListData *>(&QLinkedListData::shared_null)) { }
     inline QLinkedList(const QLinkedList<T> &l) : d(l.d) { d->ref.ref(); if (!d->sharable) detach(); }
-#if defined(Q_COMPILER_INITIALIZER_LISTS)
     inline QLinkedList(std::initializer_list<T> list)
-        : d(const_cast<QLinkedListData *>(&QLinkedListData::shared_null))
+        : QLinkedList(list.begin(), list.end()) {}
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    inline QLinkedList(InputIterator first, InputIterator last)
+        : QLinkedList()
     {
-        std::copy(list.begin(), list.end(), std::back_inserter(*this));
+        std::copy(first, last, std::back_inserter(*this));
     }
-#endif
     ~QLinkedList();
     QLinkedList<T> &operator=(const QLinkedList<T> &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QLinkedList(QLinkedList<T> &&other) Q_DECL_NOTHROW
+    QLinkedList(QLinkedList<T> &&other) noexcept
         : d(other.d) { other.d = const_cast<QLinkedListData *>(&QLinkedListData::shared_null); }
-    QLinkedList<T> &operator=(QLinkedList<T> &&other) Q_DECL_NOTHROW
+    QLinkedList<T> &operator=(QLinkedList<T> &&other) noexcept
     { QLinkedList moved(std::move(other)); swap(moved); return *this; }
-#endif
-    inline void swap(QLinkedList<T> &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QLinkedList<T> &other) noexcept { qSwap(d, other.d); }
     bool operator==(const QLinkedList<T> &l) const;
     inline bool operator!=(const QLinkedList<T> &l) const { return !(*this == l); }
 
@@ -137,10 +133,10 @@ public:
         inline iterator() : i(nullptr) {}
         inline iterator(Node *n) : i(n) {}
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-        iterator(const iterator &other) Q_DECL_NOTHROW : i(other.i) {}
-        iterator &operator=(const iterator &other) Q_DECL_NOTHROW { i = other.i; return *this; }
-        iterator(iterator &&other) Q_DECL_NOTHROW : i(other.i) {}
-        iterator &operator=(iterator &&other) Q_DECL_NOTHROW { return *this = other; }
+        iterator(const iterator &other) noexcept : i(other.i) {}
+        iterator &operator=(const iterator &other) noexcept { i = other.i; return *this; }
+        iterator(iterator &&other) noexcept : i(other.i) {}
+        iterator &operator=(iterator &&other) noexcept { return *this = other; }
 #endif
         inline T &operator*() const { return i->t; }
         inline T *operator->() const { return &i->t; }
@@ -176,10 +172,10 @@ public:
         inline const_iterator(Node *n) : i(n) {}
         inline const_iterator(iterator ci) : i(ci.i){}
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-        const_iterator(const const_iterator &other) Q_DECL_NOTHROW : i(other.i) {}
-        const_iterator &operator=(const const_iterator &other) Q_DECL_NOTHROW { i = other.i; return *this; }
-        const_iterator(const_iterator &&other) Q_DECL_NOTHROW : i(other.i) {}
-        const_iterator &operator=(const_iterator &&other) Q_DECL_NOTHROW { return *this = other; }
+        const_iterator(const const_iterator &other) noexcept : i(other.i) {}
+        const_iterator &operator=(const const_iterator &other) noexcept { i = other.i; return *this; }
+        const_iterator(const_iterator &&other) noexcept : i(other.i) {}
+        const_iterator &operator=(const_iterator &&other) noexcept { return *this = other; }
 #endif
         inline const T &operator*() const { return i->t; }
         inline const T *operator->() const { return &i->t; }
@@ -203,20 +199,20 @@ public:
     typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 
     inline iterator begin() { detach(); return e->n; }
-    inline const_iterator begin() const Q_DECL_NOTHROW { return e->n; }
-    inline const_iterator cbegin() const Q_DECL_NOTHROW { return e->n; }
-    inline const_iterator constBegin() const Q_DECL_NOTHROW { return e->n; }
+    inline const_iterator begin() const noexcept { return e->n; }
+    inline const_iterator cbegin() const noexcept { return e->n; }
+    inline const_iterator constBegin() const noexcept { return e->n; }
     inline iterator end() { detach(); return e; }
-    inline const_iterator end() const Q_DECL_NOTHROW { return e; }
-    inline const_iterator cend() const Q_DECL_NOTHROW { return e; }
-    inline const_iterator constEnd() const Q_DECL_NOTHROW { return e; }
+    inline const_iterator end() const noexcept { return e; }
+    inline const_iterator cend() const noexcept { return e; }
+    inline const_iterator constEnd() const noexcept { return e; }
 
     reverse_iterator rbegin() { return reverse_iterator(end()); }
     reverse_iterator rend() { return reverse_iterator(begin()); }
-    const_reverse_iterator rbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
 
     iterator insert(iterator before, const T &t);
     iterator erase(iterator pos);
diff --git a/src/corelib/tools/qlist.cpp b/src/corelib/tools/qlist.cpp
index 6f8084c676..48617f0539 100644
--- a/src/corelib/tools/qlist.cpp
+++ b/src/corelib/tools/qlist.cpp
@@ -545,6 +545,14 @@ void **QListData::erase(void **xi)
     \since 5.2
 */
 
+/*! \fn template <class T> template<typename InputIterator> QList<T>::QList(InputIterator first, InputIterator last)
+    \since 5.14
+
+    Constructs a QList with the contents in the iterator range [\a first, \a last).
+
+    The value type of \c InputIterator must be convertible to \c T.
+*/
+
 /*!
     \fn template <class T> QList<T> QList<T>::mid(int pos, int length) const
 
diff --git a/src/corelib/tools/qlist.h b/src/corelib/tools/qlist.h
index e593ba9aa3..04c1f12f5f 100644
--- a/src/corelib/tools/qlist.h
+++ b/src/corelib/tools/qlist.h
@@ -46,12 +46,13 @@
 #include <QtCore/qarraydata.h>
 #include <QtCore/qhashfunctions.h>
 #include <QtCore/qvector.h>
+#include <QtCore/qcontainertools_impl.h>
 
-#include <iterator>
-#include <list>
 #include <algorithm>
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 #include <initializer_list>
+#include <iterator>
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+#include <list>
 #endif
 
 #include <stdlib.h>
@@ -111,11 +112,11 @@ struct Q_CORE_EXPORT QListData {
     void remove(int i);
     void remove(int i, int n);
     void move(int from, int to);
-    inline int size() const Q_DECL_NOTHROW { return d->end - d->begin; }
-    inline bool isEmpty() const Q_DECL_NOTHROW { return d->end  == d->begin; }
-    inline void **at(int i) const Q_DECL_NOTHROW { return d->array + d->begin + i; }
-    inline void **begin() const Q_DECL_NOTHROW { return d->array + d->begin; }
-    inline void **end() const Q_DECL_NOTHROW { return d->array + d->end; }
+    inline int size() const noexcept { return d->end - d->begin; }
+    inline bool isEmpty() const noexcept { return d->end  == d->begin; }
+    inline void **at(int i) const noexcept { return d->array + d->begin + i; }
+    inline void **begin() const noexcept { return d->array + d->begin; }
+    inline void **end() const noexcept { return d->array + d->end; }
 };
 
 namespace QtPrivate {
@@ -156,26 +157,23 @@ private:
     union { QListData p; QListData::Data *d; };
 
 public:
-    inline QList() Q_DECL_NOTHROW : d(const_cast<QListData::Data *>(&QListData::shared_null)) { }
+    inline QList() noexcept : d(const_cast<QListData::Data *>(&QListData::shared_null)) { }
     QList(const QList<T> &l);
     ~QList();
     QList<T> &operator=(const QList<T> &l);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QList(QList<T> &&other) Q_DECL_NOTHROW
+    inline QList(QList<T> &&other) noexcept
         : d(other.d) { other.d = const_cast<QListData::Data *>(&QListData::shared_null); }
-    inline QList &operator=(QList<T> &&other) Q_DECL_NOTHROW
+    inline QList &operator=(QList<T> &&other) noexcept
     { QList moved(std::move(other)); swap(moved); return *this; }
-#endif
-    inline void swap(QList<T> &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    inline void swap(QList<T> &other) noexcept { qSwap(d, other.d); }
     inline QList(std::initializer_list<T> args)
-        : d(const_cast<QListData::Data *>(&QListData::shared_null))
-    { reserve(int(args.size())); std::copy(args.begin(), args.end(), std::back_inserter(*this)); }
-#endif
+        : QList(args.begin(), args.end()) {}
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    QList(InputIterator first, InputIterator last);
     bool operator==(const QList<T> &l) const;
     inline bool operator!=(const QList<T> &l) const { return !(*this == l); }
 
-    inline int size() const Q_DECL_NOTHROW { return p.size(); }
+    inline int size() const noexcept { return p.size(); }
 
     inline void detach() { if (d->ref.isShared()) detach_helper(); }
 
@@ -198,9 +196,9 @@ public:
             d->ref.setSharable(sharable);
     }
 #endif
-    inline bool isSharedWith(const QList<T> &other) const Q_DECL_NOTHROW { return d == other.d; }
+    inline bool isSharedWith(const QList<T> &other) const noexcept { return d == other.d; }
 
-    inline bool isEmpty() const Q_DECL_NOTHROW { return p.isEmpty(); }
+    inline bool isEmpty() const noexcept { return p.isEmpty(); }
 
     void clear();
 
@@ -243,36 +241,36 @@ public:
         typedef T *pointer;
         typedef T &reference;
 
-        inline iterator() Q_DECL_NOTHROW : i(nullptr) {}
-        inline iterator(Node *n) Q_DECL_NOTHROW : i(n) {}
+        inline iterator() noexcept : i(nullptr) {}
+        inline iterator(Node *n) noexcept : i(n) {}
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
         // can't remove it in Qt 5, since doing so would make the type trivial,
         // which changes the way it's passed to functions by value.
-        inline iterator(const iterator &o) Q_DECL_NOTHROW : i(o.i){}
-        inline iterator &operator=(const iterator &o) Q_DECL_NOTHROW
+        inline iterator(const iterator &o) noexcept : i(o.i){}
+        inline iterator &operator=(const iterator &o) noexcept
         { i = o.i; return *this; }
 #endif
         inline T &operator*() const { return i->t(); }
         inline T *operator->() const { return &i->t(); }
         inline T &operator[](difference_type j) const { return i[j].t(); }
-        inline bool operator==(const iterator &o) const Q_DECL_NOTHROW { return i == o.i; }
-        inline bool operator!=(const iterator &o) const Q_DECL_NOTHROW { return i != o.i; }
-        inline bool operator<(const iterator& other) const Q_DECL_NOTHROW { return i < other.i; }
-        inline bool operator<=(const iterator& other) const Q_DECL_NOTHROW { return i <= other.i; }
-        inline bool operator>(const iterator& other) const Q_DECL_NOTHROW { return i > other.i; }
-        inline bool operator>=(const iterator& other) const Q_DECL_NOTHROW { return i >= other.i; }
+        inline bool operator==(const iterator &o) const noexcept { return i == o.i; }
+        inline bool operator!=(const iterator &o) const noexcept { return i != o.i; }
+        inline bool operator<(const iterator& other) const noexcept { return i < other.i; }
+        inline bool operator<=(const iterator& other) const noexcept { return i <= other.i; }
+        inline bool operator>(const iterator& other) const noexcept { return i > other.i; }
+        inline bool operator>=(const iterator& other) const noexcept { return i >= other.i; }
 #ifndef QT_STRICT_ITERATORS
-        inline bool operator==(const const_iterator &o) const Q_DECL_NOTHROW
+        inline bool operator==(const const_iterator &o) const noexcept
             { return i == o.i; }
-        inline bool operator!=(const const_iterator &o) const Q_DECL_NOTHROW
+        inline bool operator!=(const const_iterator &o) const noexcept
             { return i != o.i; }
-        inline bool operator<(const const_iterator& other) const Q_DECL_NOTHROW
+        inline bool operator<(const const_iterator& other) const noexcept
             { return i < other.i; }
-        inline bool operator<=(const const_iterator& other) const Q_DECL_NOTHROW
+        inline bool operator<=(const const_iterator& other) const noexcept
             { return i <= other.i; }
-        inline bool operator>(const const_iterator& other) const Q_DECL_NOTHROW
+        inline bool operator>(const const_iterator& other) const noexcept
             { return i > other.i; }
-        inline bool operator>=(const const_iterator& other) const Q_DECL_NOTHROW
+        inline bool operator>=(const const_iterator& other) const noexcept
             { return i >= other.i; }
 #endif
         inline iterator &operator++() { ++i; return *this; }
@@ -298,29 +296,29 @@ public:
         typedef const T *pointer;
         typedef const T &reference;
 
-        inline const_iterator() Q_DECL_NOTHROW : i(nullptr) {}
-        inline const_iterator(Node *n) Q_DECL_NOTHROW : i(n) {}
+        inline const_iterator() noexcept : i(nullptr) {}
+        inline const_iterator(Node *n) noexcept : i(n) {}
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
         // can't remove it in Qt 5, since doing so would make the type trivial,
         // which changes the way it's passed to functions by value.
-        inline const_iterator(const const_iterator &o) Q_DECL_NOTHROW : i(o.i) {}
-        inline const_iterator &operator=(const const_iterator &o) Q_DECL_NOTHROW
+        inline const_iterator(const const_iterator &o) noexcept : i(o.i) {}
+        inline const_iterator &operator=(const const_iterator &o) noexcept
         { i = o.i; return *this; }
 #endif
 #ifdef QT_STRICT_ITERATORS
-        inline explicit const_iterator(const iterator &o) Q_DECL_NOTHROW : i(o.i) {}
+        inline explicit const_iterator(const iterator &o) noexcept : i(o.i) {}
 #else
-        inline const_iterator(const iterator &o) Q_DECL_NOTHROW : i(o.i) {}
+        inline const_iterator(const iterator &o) noexcept : i(o.i) {}
 #endif
         inline const T &operator*() const { return i->t(); }
         inline const T *operator->() const { return &i->t(); }
         inline const T &operator[](difference_type j) const { return i[j].t(); }
-        inline bool operator==(const const_iterator &o) const Q_DECL_NOTHROW { return i == o.i; }
-        inline bool operator!=(const const_iterator &o) const Q_DECL_NOTHROW { return i != o.i; }
-        inline bool operator<(const const_iterator& other) const Q_DECL_NOTHROW { return i < other.i; }
-        inline bool operator<=(const const_iterator& other) const Q_DECL_NOTHROW { return i <= other.i; }
-        inline bool operator>(const const_iterator& other) const Q_DECL_NOTHROW { return i > other.i; }
-        inline bool operator>=(const const_iterator& other) const Q_DECL_NOTHROW { return i >= other.i; }
+        inline bool operator==(const const_iterator &o) const noexcept { return i == o.i; }
+        inline bool operator!=(const const_iterator &o) const noexcept { return i != o.i; }
+        inline bool operator<(const const_iterator& other) const noexcept { return i < other.i; }
+        inline bool operator<=(const const_iterator& other) const noexcept { return i <= other.i; }
+        inline bool operator>(const const_iterator& other) const noexcept { return i > other.i; }
+        inline bool operator>=(const const_iterator& other) const noexcept { return i >= other.i; }
         inline const_iterator &operator++() { ++i; return *this; }
         inline const_iterator operator++(int) { Node *n = i; ++i; return n; }
         inline const_iterator &operator--() { i--; return *this; }
@@ -338,19 +336,19 @@ public:
     typedef std::reverse_iterator<iterator> reverse_iterator;
     typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
     inline iterator begin() { detach(); return reinterpret_cast<Node *>(p.begin()); }
-    inline const_iterator begin() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.begin()); }
-    inline const_iterator cbegin() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.begin()); }
-    inline const_iterator constBegin() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.begin()); }
+    inline const_iterator begin() const noexcept { return reinterpret_cast<Node *>(p.begin()); }
+    inline const_iterator cbegin() const noexcept { return reinterpret_cast<Node *>(p.begin()); }
+    inline const_iterator constBegin() const noexcept { return reinterpret_cast<Node *>(p.begin()); }
     inline iterator end() { detach(); return reinterpret_cast<Node *>(p.end()); }
-    inline const_iterator end() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.end()); }
-    inline const_iterator cend() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.end()); }
-    inline const_iterator constEnd() const Q_DECL_NOTHROW { return reinterpret_cast<Node *>(p.end()); }
+    inline const_iterator end() const noexcept { return reinterpret_cast<Node *>(p.end()); }
+    inline const_iterator cend() const noexcept { return reinterpret_cast<Node *>(p.end()); }
+    inline const_iterator constEnd() const noexcept { return reinterpret_cast<Node *>(p.end()); }
     reverse_iterator rbegin() { return reverse_iterator(end()); }
     reverse_iterator rend() { return reverse_iterator(begin()); }
-    const_reverse_iterator rbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
     iterator insert(iterator before, const T &t);
     iterator erase(iterator pos);
     iterator erase(iterator first, iterator last);
@@ -405,16 +403,22 @@ public:
     inline QList<T> &operator<<(const QList<T> &l)
     { *this += l; return *this; }
 
+    static QList<T> fromVector(const QVector<T> &vector);
     QVector<T> toVector() const;
-    QSet<T> toSet() const;
 
-    static QList<T> fromVector(const QVector<T> &vector);
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+    Q_DECL_DEPRECATED_X("Use QList<T>(set.begin(), set.end()) instead.")
     static QList<T> fromSet(const QSet<T> &set);
+    Q_DECL_DEPRECATED_X("Use QSet<T>(list.begin(), list.end()) instead.")
+    QSet<T> toSet() const;
 
+    Q_DECL_DEPRECATED_X("Use QList<T>(list.begin(), list.end()) instead.")
     static inline QList<T> fromStdList(const std::list<T> &list)
     { QList<T> tmp; std::copy(list.begin(), list.end(), std::back_inserter(tmp)); return tmp; }
+    Q_DECL_DEPRECATED_X("Use std::list<T>(list.begin(), list.end()) instead.")
     inline std::list<T> toStdList() const
     { std::list<T> tmp; std::copy(constBegin(), constEnd(), std::back_inserter(tmp)); return tmp; }
+#endif
 
 private:
     Node *detach_helper_grow(int i, int n);
@@ -427,7 +431,7 @@ private:
     void node_copy(Node *from, Node *to, Node *src);
     void node_destruct(Node *from, Node *to);
 
-    bool isValidIterator(const iterator &i) const Q_DECL_NOTHROW
+    bool isValidIterator(const iterator &i) const noexcept
     {
         const std::less<const Node *> less = {};
         return !less(i.i, cbegin().i) && !less(cend().i, i.i);
@@ -530,7 +534,7 @@ inline typename QList<T>::iterator QList<T>::insert(iterator before, const T &t)
     Q_ASSERT_X(isValidIterator(before), "QList::insert", "The specified iterator argument 'before' is invalid");
 
     int iBefore = int(before.i - reinterpret_cast<Node *>(p.begin()));
-    Node *n = 0;
+    Node *n = nullptr;
     if (d->ref.isShared())
         n = detach_helper_grow(iBefore, 1);
     else
@@ -710,7 +714,7 @@ inline void QList<T>::swapItemsAt(int i, int j)
     Q_ASSERT_X(i >= 0 && i < p.size() && j >= 0 && j < p.size(),
                 "QList<T>::swap", "index out of range");
     detach();
-    std::swap(d->array[d->begin + i], d->array[d->begin + j]);
+    qSwap(d->array[d->begin + i], d->array[d->begin + j]);
 }
 
 template <typename T>
@@ -847,6 +851,15 @@ Q_OUTOFLINE_TEMPLATE QList<T>::~QList()
 }
 
 template <typename T>
+template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator>>
+QList<T>::QList(InputIterator first, InputIterator last)
+    : QList()
+{
+    QtPrivate::reserveIfForwardIterator(this, first, last);
+    std::copy(first, last, std::back_inserter(*this));
+}
+
+template <typename T>
 Q_OUTOFLINE_TEMPLATE bool QList<T>::operator==(const QList<T> &l) const
 {
     if (d == l.d)
@@ -1125,14 +1138,14 @@ Q_DECLARE_MUTABLE_SEQUENTIAL_ITERATOR(List)
 
 template <typename T>
 uint qHash(const QList<T> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHashRange(key.cbegin(), key.cend(), seed)))
+    noexcept(noexcept(qHashRange(key.cbegin(), key.cend(), seed)))
 {
     return qHashRange(key.cbegin(), key.cend(), seed);
 }
 
 template <typename T>
 bool operator<(const QList<T> &lhs, const QList<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
+    noexcept(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
                                                                rhs.begin(), rhs.end())))
 {
     return std::lexicographical_compare(lhs.begin(), lhs.end(),
@@ -1141,21 +1154,21 @@ bool operator<(const QList<T> &lhs, const QList<T> &rhs)
 
 template <typename T>
 inline bool operator>(const QList<T> &lhs, const QList<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return rhs < lhs;
 }
 
 template <typename T>
 inline bool operator<=(const QList<T> &lhs, const QList<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs > rhs);
 }
 
 template <typename T>
 inline bool operator>=(const QList<T> &lhs, const QList<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs < rhs);
 }
diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp
index 152c2edb50..f6eaa53c3a 100644
--- a/src/corelib/tools/qlocale.cpp
+++ b/src/corelib/tools/qlocale.cpp
@@ -94,7 +94,7 @@ QT_BEGIN_INCLUDE_NAMESPACE
 #include "qlocale_data_p.h"
 QT_END_INCLUDE_NAMESPACE
 
-QLocale::Language QLocalePrivate::codeToLanguage(QStringView code) Q_DECL_NOTHROW
+QLocale::Language QLocalePrivate::codeToLanguage(QStringView code) noexcept
 {
     const auto len = code.size();
     if (len != 2 && len != 3)
@@ -138,7 +138,7 @@ QLocale::Language QLocalePrivate::codeToLanguage(QStringView code) Q_DECL_NOTHRO
     return QLocale::C;
 }
 
-QLocale::Script QLocalePrivate::codeToScript(QStringView code) Q_DECL_NOTHROW
+QLocale::Script QLocalePrivate::codeToScript(QStringView code) noexcept
 {
     const auto len = code.size();
     if (len != 4)
@@ -158,7 +158,7 @@ QLocale::Script QLocalePrivate::codeToScript(QStringView code) Q_DECL_NOTHROW
     return QLocale::AnyScript;
 }
 
-QLocale::Country QLocalePrivate::codeToCountry(QStringView code) Q_DECL_NOTHROW
+QLocale::Country QLocalePrivate::codeToCountry(QStringView code) noexcept
 {
     const auto len = code.size();
     if (len != 2 && len != 3)
@@ -982,7 +982,7 @@ bool QLocale::operator!=(const QLocale &other) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QLocale &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QLocale &key, uint seed) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.d->m_data);
@@ -4143,6 +4143,29 @@ QStringList QLocale::uiLanguages() const
 }
 
 /*!
+  \since 5.13
+
+  Returns the locale to use for collation.
+
+  The result is usually this locale; however, the system locale (which is
+  commonly the default locale) will return the system collation locale.
+  The result is suitable for passing to QCollator's constructor.
+
+  \sa QCollator
+*/
+QLocale QLocale::collation() const
+{
+#ifndef QT_NO_SYSTEMLOCALE
+    if (d->m_data == systemData()) {
+        QString res = systemLocale()->query(QSystemLocale::Collation, QVariant()).toString();
+        if (!res.isEmpty())
+            return QLocale(res);
+    }
+#endif
+    return *this;
+}
+
+/*!
     \since 4.8
 
     Returns a native name of the language for the locale. For example
diff --git a/src/corelib/tools/qlocale.h b/src/corelib/tools/qlocale.h
index 2b4f131552..977c4c6c9c 100644
--- a/src/corelib/tools/qlocale.h
+++ b/src/corelib/tools/qlocale.h
@@ -59,7 +59,7 @@ class QTextStreamPrivate;
 
 class QLocalePrivate;
 
-Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QLocale
 {
@@ -939,13 +939,11 @@ public:
     QLocale(Language language, Country country = AnyCountry);
     QLocale(Language language, Script script, Country country);
     QLocale(const QLocale &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QLocale &operator=(QLocale &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QLocale &operator=(QLocale &&other) noexcept { swap(other); return *this; }
     QLocale &operator=(const QLocale &other);
     ~QLocale();
 
-    void swap(QLocale &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QLocale &other) noexcept { qSwap(d, other.d); }
 
     Language language() const;
     Script script() const;
@@ -1048,7 +1046,7 @@ public:
     QString pmText() const;
 
     MeasurementSystem measurementSystem() const;
-
+    QLocale collation() const;
     Qt::LayoutDirection textDirection() const;
 
     QString toUpper(const QString &str) const;
@@ -1108,7 +1106,7 @@ private:
     QLocale(QLocalePrivate &dd);
     friend class QLocalePrivate;
     friend class QSystemLocale;
-    friend Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed) noexcept;
 
     QSharedDataPointer<QLocalePrivate> d;
 };
diff --git a/src/corelib/tools/qlocale_p.h b/src/corelib/tools/qlocale_p.h
index 70430beb00..15398ded32 100644
--- a/src/corelib/tools/qlocale_p.h
+++ b/src/corelib/tools/qlocale_p.h
@@ -113,6 +113,7 @@ public:
         Weekdays, // QList<Qt::DayOfWeek>
         CurrencySymbol, // QString in: CurrencyToStringArgument
         CurrencyToString, // QString in: qlonglong, qulonglong or double
+        Collation, // QString
         UILanguages, // QStringList
         StringToStandardQuotation, // QString in: QStringRef to quote
         StringToAlternateQuotation, // QString in: QStringRef to quote
@@ -249,7 +250,7 @@ public:
         if (qIsInf(d))
             return float(d);
         if (std::fabs(d) > std::numeric_limits<float>::max()) {
-            if (ok != 0)
+            if (ok != nullptr)
                 *ok = false;
             const float huge = std::numeric_limits<float>::infinity();
             return d < 0 ? -huge : huge;
@@ -358,16 +359,16 @@ public:
 
     QByteArray bcp47Name(char separator = '-') const;
 
-    inline QLatin1String languageCode() const { return QLocalePrivate::languageToCode(QLocale::Language(m_data->m_language_id)); }
-    inline QLatin1String scriptCode() const { return QLocalePrivate::scriptToCode(QLocale::Script(m_data->m_script_id)); }
-    inline QLatin1String countryCode() const { return QLocalePrivate::countryToCode(QLocale::Country(m_data->m_country_id)); }
+    inline QLatin1String languageCode() const { return languageToCode(QLocale::Language(m_data->m_language_id)); }
+    inline QLatin1String scriptCode() const { return scriptToCode(QLocale::Script(m_data->m_script_id)); }
+    inline QLatin1String countryCode() const { return countryToCode(QLocale::Country(m_data->m_country_id)); }
 
     static QLatin1String languageToCode(QLocale::Language language);
     static QLatin1String scriptToCode(QLocale::Script script);
     static QLatin1String countryToCode(QLocale::Country country);
-    static QLocale::Language codeToLanguage(QStringView code) Q_DECL_NOTHROW;
-    static QLocale::Script codeToScript(QStringView code) Q_DECL_NOTHROW;
-    static QLocale::Country codeToCountry(QStringView code) Q_DECL_NOTHROW;
+    static QLocale::Language codeToLanguage(QStringView code) noexcept;
+    static QLocale::Script codeToScript(QStringView code) noexcept;
+    static QLocale::Country codeToCountry(QStringView code) noexcept;
     static void getLangAndCountry(const QString &name, QLocale::Language &lang,
                                   QLocale::Script &script, QLocale::Country &cntry);
 
diff --git a/src/corelib/tools/qlocale_unix.cpp b/src/corelib/tools/qlocale_unix.cpp
index f202082213..ff4274d932 100644
--- a/src/corelib/tools/qlocale_unix.cpp
+++ b/src/corelib/tools/qlocale_unix.cpp
@@ -69,6 +69,7 @@ struct QSystemLocaleData
     QLocale lc_messages;
     QByteArray lc_messages_var;
     QByteArray lc_measurement_var;
+    QByteArray lc_collate_var;
     QStringList uiLanguages;
 };
 
@@ -82,6 +83,7 @@ void QSystemLocaleData::readEnvironment()
     QByteArray monetary = all.isEmpty() ? qgetenv("LC_MONETARY") : all;
     lc_messages_var     = all.isEmpty() ? qgetenv("LC_MESSAGES") : all;
     lc_measurement_var  = all.isEmpty() ? qgetenv("LC_MEASUREMENT") : all;
+    lc_collate_var      = all.isEmpty() ? qgetenv("LC_COLLATE") : all;
     QByteArray lang = qgetenv("LANG");
     if (lang.isEmpty())
         lang = QByteArray("C");
@@ -95,6 +97,8 @@ void QSystemLocaleData::readEnvironment()
         lc_messages_var = lang;
     if (lc_measurement_var.isEmpty())
         lc_measurement_var = lang;
+    if (lc_collate_var.isEmpty())
+        lc_collate_var = lang;
     lc_numeric = QLocale(QString::fromLatin1(numeric));
     lc_time = QLocale(QString::fromLatin1(time));
     lc_monetary = QLocale(QString::fromLatin1(monetary));
@@ -247,13 +251,15 @@ QVariant QSystemLocale::query(QueryType type, QVariant in) const
         return QString();
     }
     case MeasurementSystem: {
-        const QString meas_locale = QString::fromLatin1(d->lc_measurement_var.constData(), d->lc_measurement_var.size());
+        const QString meas_locale = QString::fromLatin1(d->lc_measurement_var);
         if (meas_locale.compare(QLatin1String("Metric"), Qt::CaseInsensitive) == 0)
             return QLocale::MetricSystem;
         if (meas_locale.compare(QLatin1String("Other"), Qt::CaseInsensitive) == 0)
             return QLocale::MetricSystem;
         return QVariant((int)QLocale(meas_locale).measurementSystem());
     }
+    case Collation:
+        return QString::fromLatin1(d->lc_collate_var);
     case UILanguages: {
         if (!d->uiLanguages.isEmpty())
             return d->uiLanguages;
diff --git a/src/corelib/tools/qlocale_win.cpp b/src/corelib/tools/qlocale_win.cpp
index ebc4430046..dc904ad02d 100644
--- a/src/corelib/tools/qlocale_win.cpp
+++ b/src/corelib/tools/qlocale_win.cpp
@@ -120,6 +120,7 @@ struct QSystemLocalePrivate
     QVariant toString(const QTime &, QLocale::FormatType);
     QVariant toString(const QDateTime &, QLocale::FormatType);
     QVariant measurementSystem();
+    QVariant collation();
     QVariant amText();
     QVariant pmText();
     QVariant firstDayOfWeek();
@@ -455,6 +456,11 @@ QVariant QSystemLocalePrivate::measurementSystem()
     return QLocale::MetricSystem;
 }
 
+QVariant QSystemLocalePrivate::collation()
+{
+    return getLocaleInfo(LOCALE_SSORTLOCALE);
+}
+
 QVariant QSystemLocalePrivate::amText()
 {
     wchar_t output[15]; // maximum length including  terminating zero character for Win2003+
@@ -808,6 +814,8 @@ QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const
         return QVariant(QLocale::AnyScript);
     case MeasurementSystem:
         return d->measurementSystem();
+    case Collation:
+        return d->collation();
     case AMText:
         return d->amText();
     case PMText:
diff --git a/src/corelib/tools/qmap.h b/src/corelib/tools/qmap.h
index 1cf9299e26..18c681581f 100644
--- a/src/corelib/tools/qmap.h
+++ b/src/corelib/tools/qmap.h
@@ -49,13 +49,10 @@
 #include <QtCore/qdebug.h>
 #endif
 
-#include <map>
-#include <new>
 #include <functional>
-
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 #include <initializer_list>
-#endif
+#include <map>
+#include <new>
 
 QT_BEGIN_NAMESPACE
 
@@ -100,10 +97,10 @@ struct Q_CORE_EXPORT QMapNodeBase
 
     template <typename T>
     static typename std::enable_if<QTypeInfo<T>::isComplex>::type
-    callDestructorIfNecessary(T &t) Q_DECL_NOTHROW { Q_UNUSED(t); t.~T(); } // Q_UNUSED: silence MSVC unused 't' warning
+    callDestructorIfNecessary(T &t) noexcept { Q_UNUSED(t); t.~T(); } // Q_UNUSED: silence MSVC unused 't' warning
     template <typename T>
     static typename std::enable_if<!QTypeInfo<T>::isComplex>::type
-    callDestructorIfNecessary(T &) Q_DECL_NOTHROW {}
+    callDestructorIfNecessary(T &) noexcept {}
 };
 
 template <class Key, class T>
@@ -142,7 +139,7 @@ private:
             rightNode()->destroySubTree();
     }
 
-    QMapNode() Q_DECL_EQ_DELETE;
+    QMapNode() = delete;
     Q_DISABLE_COPY(QMapNode)
 };
 
@@ -325,32 +322,28 @@ class QMap
     QMapData<Key, T> *d;
 
 public:
-    inline QMap() Q_DECL_NOTHROW : d(static_cast<QMapData<Key, T> *>(const_cast<QMapDataBase *>(&QMapDataBase::shared_null))) { }
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    inline QMap() noexcept : d(static_cast<QMapData<Key, T> *>(const_cast<QMapDataBase *>(&QMapDataBase::shared_null))) { }
     inline QMap(std::initializer_list<std::pair<Key,T> > list)
         : d(static_cast<QMapData<Key, T> *>(const_cast<QMapDataBase *>(&QMapDataBase::shared_null)))
     {
         for (typename std::initializer_list<std::pair<Key,T> >::const_iterator it = list.begin(); it != list.end(); ++it)
             insert(it->first, it->second);
     }
-#endif
     QMap(const QMap<Key, T> &other);
 
     inline ~QMap() { if (!d->ref.deref()) d->destroy(); }
 
     QMap<Key, T> &operator=(const QMap<Key, T> &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QMap(QMap<Key, T> &&other) Q_DECL_NOTHROW
+    inline QMap(QMap<Key, T> &&other) noexcept
         : d(other.d)
     {
         other.d = static_cast<QMapData<Key, T> *>(
                 const_cast<QMapDataBase *>(&QMapDataBase::shared_null));
     }
 
-    inline QMap<Key, T> &operator=(QMap<Key, T> &&other) Q_DECL_NOTHROW
+    inline QMap<Key, T> &operator=(QMap<Key, T> &&other) noexcept
     { QMap moved(std::move(other)); swap(moved); return *this; }
-#endif
-    inline void swap(QMap<Key, T> &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QMap<Key, T> &other) noexcept { qSwap(d, other.d); }
     explicit QMap(const typename std::map<Key, T> &other);
     std::map<Key, T> toStdMap() const;
 
@@ -1187,19 +1180,15 @@ template <class Key, class T>
 class QMultiMap : public QMap<Key, T>
 {
 public:
-    QMultiMap() Q_DECL_NOTHROW {}
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    QMultiMap() noexcept {}
     inline QMultiMap(std::initializer_list<std::pair<Key,T> > list)
     {
         for (typename std::initializer_list<std::pair<Key,T> >::const_iterator it = list.begin(); it != list.end(); ++it)
             insert(it->first, it->second);
     }
-#endif
     QMultiMap(const QMap<Key, T> &other) : QMap<Key, T>(other) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QMultiMap(QMap<Key, T> &&other) Q_DECL_NOTHROW : QMap<Key, T>(std::move(other)) {}
-#endif
-    void swap(QMultiMap<Key, T> &other) Q_DECL_NOTHROW { QMap<Key, T>::swap(other); }
+    QMultiMap(QMap<Key, T> &&other) noexcept : QMap<Key, T>(std::move(other)) {}
+    void swap(QMultiMap<Key, T> &other) noexcept { QMap<Key, T>::swap(other); }
 
     inline typename QMap<Key, T>::iterator replace(const Key &key, const T &value)
     { return QMap<Key, T>::insert(key, value); }
diff --git a/src/corelib/tools/qmargins.h b/src/corelib/tools/qmargins.h
index 0c73235d26..447037daaa 100644
--- a/src/corelib/tools/qmargins.h
+++ b/src/corelib/tools/qmargins.h
@@ -51,28 +51,28 @@ QT_BEGIN_NAMESPACE
 class QMargins
 {
 public:
-    Q_DECL_CONSTEXPR QMargins() Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QMargins(int left, int top, int right, int bottom) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR int left() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR int top() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR int right() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR int bottom() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR void setLeft(int left) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setTop(int top) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setRight(int right) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setBottom(int bottom) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator+=(const QMargins &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator-=(const QMargins &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator+=(int) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator-=(int) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator*=(int) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QMargins() noexcept;
+    Q_DECL_CONSTEXPR QMargins(int left, int top, int right, int bottom) noexcept;
+
+    Q_DECL_CONSTEXPR bool isNull() const noexcept;
+
+    Q_DECL_CONSTEXPR int left() const noexcept;
+    Q_DECL_CONSTEXPR int top() const noexcept;
+    Q_DECL_CONSTEXPR int right() const noexcept;
+    Q_DECL_CONSTEXPR int bottom() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR void setLeft(int left) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setTop(int top) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setRight(int right) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setBottom(int bottom) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator+=(const QMargins &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator-=(const QMargins &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator+=(int) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator-=(int) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator*=(int) noexcept;
     Q_DECL_RELAXED_CONSTEXPR QMargins &operator/=(int);
-    Q_DECL_RELAXED_CONSTEXPR QMargins &operator*=(qreal) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR QMargins &operator*=(qreal) noexcept;
     Q_DECL_RELAXED_CONSTEXPR QMargins &operator/=(qreal);
 
 private:
@@ -81,8 +81,8 @@ private:
     int m_right;
     int m_bottom;
 
-    friend Q_DECL_CONSTEXPR inline bool operator==(const QMargins &, const QMargins &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline bool operator!=(const QMargins &, const QMargins &) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR inline bool operator==(const QMargins &, const QMargins &) noexcept;
+    friend Q_DECL_CONSTEXPR inline bool operator!=(const QMargins &, const QMargins &) noexcept;
 };
 
 Q_DECLARE_TYPEINFO(QMargins, Q_MOVABLE_TYPE);
@@ -99,40 +99,40 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QMargins &);
   QMargins inline functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QMargins::QMargins() Q_DECL_NOTHROW : m_left(0), m_top(0), m_right(0), m_bottom(0) {}
+Q_DECL_CONSTEXPR inline QMargins::QMargins() noexcept : m_left(0), m_top(0), m_right(0), m_bottom(0) {}
 
-Q_DECL_CONSTEXPR inline QMargins::QMargins(int aleft, int atop, int aright, int abottom) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins::QMargins(int aleft, int atop, int aright, int abottom) noexcept
     : m_left(aleft), m_top(atop), m_right(aright), m_bottom(abottom) {}
 
-Q_DECL_CONSTEXPR inline bool QMargins::isNull() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QMargins::isNull() const noexcept
 { return m_left==0 && m_top==0 && m_right==0 && m_bottom==0; }
 
-Q_DECL_CONSTEXPR inline int QMargins::left() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QMargins::left() const noexcept
 { return m_left; }
 
-Q_DECL_CONSTEXPR inline int QMargins::top() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QMargins::top() const noexcept
 { return m_top; }
 
-Q_DECL_CONSTEXPR inline int QMargins::right() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QMargins::right() const noexcept
 { return m_right; }
 
-Q_DECL_CONSTEXPR inline int QMargins::bottom() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QMargins::bottom() const noexcept
 { return m_bottom; }
 
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setLeft(int aleft) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setLeft(int aleft) noexcept
 { m_left = aleft; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setTop(int atop) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setTop(int atop) noexcept
 { m_top = atop; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setRight(int aright) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setRight(int aright) noexcept
 { m_right = aright; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setBottom(int abottom) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMargins::setBottom(int abottom) noexcept
 { m_bottom = abottom; }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QMargins &m1, const QMargins &m2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QMargins &m1, const QMargins &m2) noexcept
 {
     return
             m1.m_left == m2.m_left &&
@@ -141,7 +141,7 @@ Q_DECL_CONSTEXPR inline bool operator==(const QMargins &m1, const QMargins &m2)
             m1.m_bottom == m2.m_bottom;
 }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QMargins &m1, const QMargins &m2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QMargins &m1, const QMargins &m2) noexcept
 {
     return
             m1.m_left != m2.m_left ||
@@ -150,55 +150,55 @@ Q_DECL_CONSTEXPR inline bool operator!=(const QMargins &m1, const QMargins &m2)
             m1.m_bottom != m2.m_bottom;
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &m1, const QMargins &m2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &m1, const QMargins &m2) noexcept
 {
     return QMargins(m1.left() + m2.left(), m1.top() + m2.top(),
                     m1.right() + m2.right(), m1.bottom() + m2.bottom());
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &m1, const QMargins &m2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &m1, const QMargins &m2) noexcept
 {
     return QMargins(m1.left() - m2.left(), m1.top() - m2.top(),
                     m1.right() - m2.right(), m1.bottom() - m2.bottom());
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &lhs, int rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &lhs, int rhs) noexcept
 {
     return QMargins(lhs.left() + rhs, lhs.top() + rhs,
                     lhs.right() + rhs, lhs.bottom() + rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator+(int lhs, const QMargins &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator+(int lhs, const QMargins &rhs) noexcept
 {
     return QMargins(rhs.left() + lhs, rhs.top() + lhs,
                     rhs.right() + lhs, rhs.bottom() + lhs);
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &lhs, int rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &lhs, int rhs) noexcept
 {
     return QMargins(lhs.left() - rhs, lhs.top() - rhs,
                     lhs.right() - rhs, lhs.bottom() - rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator*(const QMargins &margins, int factor) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator*(const QMargins &margins, int factor) noexcept
 {
     return QMargins(margins.left() * factor, margins.top() * factor,
                     margins.right() * factor, margins.bottom() * factor);
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator*(int factor, const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator*(int factor, const QMargins &margins) noexcept
 {
     return QMargins(margins.left() * factor, margins.top() * factor,
                     margins.right() * factor, margins.bottom() * factor);
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator*(const QMargins &margins, qreal factor) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator*(const QMargins &margins, qreal factor) noexcept
 {
     return QMargins(qRound(margins.left() * factor), qRound(margins.top() * factor),
                     qRound(margins.right() * factor), qRound(margins.bottom() * factor));
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator*(qreal factor, const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator*(qreal factor, const QMargins &margins) noexcept
 {
     return QMargins(qRound(margins.left() * factor), qRound(margins.top() * factor),
                     qRound(margins.right() * factor), qRound(margins.bottom() * factor));
@@ -216,17 +216,17 @@ Q_DECL_CONSTEXPR inline QMargins operator/(const QMargins &margins, qreal diviso
                     qRound(margins.right() / divisor), qRound(margins.bottom() / divisor));
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator+=(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator+=(const QMargins &margins) noexcept
 {
     return *this = *this + margins;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator-=(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator-=(const QMargins &margins) noexcept
 {
     return *this = *this - margins;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator+=(int margin) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator+=(int margin) noexcept
 {
     m_left += margin;
     m_top += margin;
@@ -235,7 +235,7 @@ Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator+=(int margin) Q_DEC
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator-=(int margin) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator-=(int margin) noexcept
 {
     m_left -= margin;
     m_top -= margin;
@@ -244,7 +244,7 @@ Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator-=(int margin) Q_DEC
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator*=(int factor) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator*=(int factor) noexcept
 {
     return *this = *this * factor;
 }
@@ -254,7 +254,7 @@ Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator/=(int divisor)
     return *this = *this / divisor;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator*=(qreal factor) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator*=(qreal factor) noexcept
 {
     return *this = *this * factor;
 }
@@ -264,12 +264,12 @@ Q_DECL_RELAXED_CONSTEXPR inline QMargins &QMargins::operator/=(qreal divisor)
     return *this = *this / divisor;
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator+(const QMargins &margins) noexcept
 {
     return margins;
 }
 
-Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins operator-(const QMargins &margins) noexcept
 {
     return QMargins(-margins.left(), -margins.top(), -margins.right(), -margins.bottom());
 }
@@ -285,30 +285,30 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QMargins &);
 class QMarginsF
 {
 public:
-    Q_DECL_CONSTEXPR QMarginsF() Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QMarginsF(qreal left, qreal top, qreal right, qreal bottom) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QMarginsF(const QMargins &margins) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR qreal left() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR qreal top() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR qreal right() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR qreal bottom() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR void setLeft(qreal left) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setTop(qreal top) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setRight(qreal right) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR void setBottom(qreal bottom) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator+=(const QMarginsF &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator-=(const QMarginsF &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator+=(qreal addend) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator-=(qreal subtrahend) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator*=(qreal factor) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QMarginsF() noexcept;
+    Q_DECL_CONSTEXPR QMarginsF(qreal left, qreal top, qreal right, qreal bottom) noexcept;
+    Q_DECL_CONSTEXPR QMarginsF(const QMargins &margins) noexcept;
+
+    Q_DECL_CONSTEXPR bool isNull() const noexcept;
+
+    Q_DECL_CONSTEXPR qreal left() const noexcept;
+    Q_DECL_CONSTEXPR qreal top() const noexcept;
+    Q_DECL_CONSTEXPR qreal right() const noexcept;
+    Q_DECL_CONSTEXPR qreal bottom() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR void setLeft(qreal left) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setTop(qreal top) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setRight(qreal right) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR void setBottom(qreal bottom) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator+=(const QMarginsF &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator-=(const QMarginsF &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator+=(qreal addend) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator-=(qreal subtrahend) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator*=(qreal factor) noexcept;
     Q_DECL_RELAXED_CONSTEXPR QMarginsF &operator/=(qreal divisor);
 
-    Q_DECL_CONSTEXPR inline QMargins toMargins() const Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR inline QMargins toMargins() const noexcept;
 
 private:
     qreal m_left;
@@ -332,44 +332,44 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QMarginsF &);
   QMarginsF inline functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF() Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF() noexcept
     : m_left(0), m_top(0), m_right(0), m_bottom(0) {}
 
-Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(qreal aleft, qreal atop, qreal aright, qreal abottom) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(qreal aleft, qreal atop, qreal aright, qreal abottom) noexcept
     : m_left(aleft), m_top(atop), m_right(aright), m_bottom(abottom) {}
 
-Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(const QMargins &margins) noexcept
     : m_left(margins.left()), m_top(margins.top()), m_right(margins.right()), m_bottom(margins.bottom()) {}
 
-Q_DECL_CONSTEXPR inline bool QMarginsF::isNull() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QMarginsF::isNull() const noexcept
 { return qFuzzyIsNull(m_left) && qFuzzyIsNull(m_top) && qFuzzyIsNull(m_right) && qFuzzyIsNull(m_bottom); }
 
-Q_DECL_CONSTEXPR inline qreal QMarginsF::left() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QMarginsF::left() const noexcept
 { return m_left; }
 
-Q_DECL_CONSTEXPR inline qreal QMarginsF::top() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QMarginsF::top() const noexcept
 { return m_top; }
 
-Q_DECL_CONSTEXPR inline qreal QMarginsF::right() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QMarginsF::right() const noexcept
 { return m_right; }
 
-Q_DECL_CONSTEXPR inline qreal QMarginsF::bottom() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QMarginsF::bottom() const noexcept
 { return m_bottom; }
 
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setLeft(qreal aleft) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setLeft(qreal aleft) noexcept
 { m_left = aleft; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setTop(qreal atop) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setTop(qreal atop) noexcept
 { m_top = atop; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setRight(qreal aright) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setRight(qreal aright) noexcept
 { m_right = aright; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setBottom(qreal abottom) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QMarginsF::setBottom(qreal abottom) noexcept
 { m_bottom = abottom; }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
 {
     return qFuzzyCompare(lhs.left(), rhs.left())
            && qFuzzyCompare(lhs.top(), rhs.top())
@@ -377,48 +377,48 @@ Q_DECL_CONSTEXPR inline bool operator==(const QMarginsF &lhs, const QMarginsF &r
            && qFuzzyCompare(lhs.bottom(), rhs.bottom());
 }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
 {
     return !operator==(lhs, rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
 {
     return QMarginsF(lhs.left() + rhs.left(), lhs.top() + rhs.top(),
                      lhs.right() + rhs.right(), lhs.bottom() + rhs.bottom());
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
 {
     return QMarginsF(lhs.left() - rhs.left(), lhs.top() - rhs.top(),
                      lhs.right() - rhs.right(), lhs.bottom() - rhs.bottom());
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, qreal rhs) noexcept
 {
     return QMarginsF(lhs.left() + rhs, lhs.top() + rhs,
                      lhs.right() + rhs, lhs.bottom() + rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator+(qreal lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator+(qreal lhs, const QMarginsF &rhs) noexcept
 {
     return QMarginsF(rhs.left() + lhs, rhs.top() + lhs,
                      rhs.right() + lhs, rhs.bottom() + lhs);
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, qreal rhs) noexcept
 {
     return QMarginsF(lhs.left() - rhs, lhs.top() - rhs,
                      lhs.right() - rhs, lhs.bottom() - rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator*(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator*(const QMarginsF &lhs, qreal rhs) noexcept
 {
     return QMarginsF(lhs.left() * rhs, lhs.top() * rhs,
                      lhs.right() * rhs, lhs.bottom() * rhs);
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator*(qreal lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator*(qreal lhs, const QMarginsF &rhs) noexcept
 {
     return QMarginsF(rhs.left() * lhs, rhs.top() * lhs,
                      rhs.right() * lhs, rhs.bottom() * lhs);
@@ -430,17 +430,17 @@ Q_DECL_CONSTEXPR inline QMarginsF operator/(const QMarginsF &lhs, qreal divisor)
                      lhs.right() / divisor, lhs.bottom() / divisor);
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator+=(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator+=(const QMarginsF &margins) noexcept
 {
     return *this = *this + margins;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator-=(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator-=(const QMarginsF &margins) noexcept
 {
     return *this = *this - margins;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator+=(qreal addend) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator+=(qreal addend) noexcept
 {
     m_left += addend;
     m_top += addend;
@@ -449,7 +449,7 @@ Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator+=(qreal addend) Q
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator-=(qreal subtrahend) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator-=(qreal subtrahend) noexcept
 {
     m_left -= subtrahend;
     m_top -= subtrahend;
@@ -458,7 +458,7 @@ Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator-=(qreal subtrahen
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator*=(qreal factor) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator*=(qreal factor) noexcept
 {
     return *this = *this * factor;
 }
@@ -468,17 +468,17 @@ Q_DECL_RELAXED_CONSTEXPR inline QMarginsF &QMarginsF::operator/=(qreal divisor)
     return *this = *this / divisor;
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &margins) noexcept
 {
     return margins;
 }
 
-Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &margins) noexcept
 {
     return QMarginsF(-margins.left(), -margins.top(), -margins.right(), -margins.bottom());
 }
 
-Q_DECL_CONSTEXPR inline QMargins QMarginsF::toMargins() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QMargins QMarginsF::toMargins() const noexcept
 {
     return QMargins(qRound(m_left), qRound(m_top), qRound(m_right), qRound(m_bottom));
 }
diff --git a/src/corelib/tools/qpair.h b/src/corelib/tools/qpair.h
index 94977fc826..9ebf88bc8f 100644
--- a/src/corelib/tools/qpair.h
+++ b/src/corelib/tools/qpair.h
@@ -52,41 +52,39 @@ struct QPair
     typedef T2 second_type;
 
     Q_DECL_CONSTEXPR QPair()
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_default_constructible<T1>::value &&
+        noexcept((std::is_nothrow_default_constructible<T1>::value &&
                               std::is_nothrow_default_constructible<T2>::value))
         : first(), second() {}
     Q_DECL_CONSTEXPR QPair(const T1 &t1, const T2 &t2)
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_copy_constructible<T1>::value &&
+        noexcept((std::is_nothrow_copy_constructible<T1>::value &&
                               std::is_nothrow_copy_constructible<T2>::value))
         : first(t1), second(t2) {}
     // compiler-generated copy/move ctor/assignment operators are fine!
 
     template <typename TT1, typename TT2>
     Q_DECL_CONSTEXPR QPair(const QPair<TT1, TT2> &p)
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_constructible<T1, TT1&>::value &&
+        noexcept((std::is_nothrow_constructible<T1, TT1&>::value &&
                               std::is_nothrow_constructible<T2, TT2&>::value))
         : first(p.first), second(p.second) {}
     template <typename TT1, typename TT2>
     Q_DECL_RELAXED_CONSTEXPR QPair &operator=(const QPair<TT1, TT2> &p)
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_assignable<T1, TT1&>::value &&
+        noexcept((std::is_nothrow_assignable<T1, TT1&>::value &&
                               std::is_nothrow_assignable<T2, TT2&>::value))
     { first = p.first; second = p.second; return *this; }
-#ifdef Q_COMPILER_RVALUE_REFS
     template <typename TT1, typename TT2>
     Q_DECL_CONSTEXPR QPair(QPair<TT1, TT2> &&p)
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_constructible<T1, TT1>::value &&
+        noexcept((std::is_nothrow_constructible<T1, TT1>::value &&
                               std::is_nothrow_constructible<T2, TT2>::value))
         // can't use std::move here as it's not constexpr in C++11:
         : first(static_cast<TT1 &&>(p.first)), second(static_cast<TT2 &&>(p.second)) {}
     template <typename TT1, typename TT2>
     Q_DECL_RELAXED_CONSTEXPR QPair &operator=(QPair<TT1, TT2> &&p)
-        Q_DECL_NOEXCEPT_EXPR((std::is_nothrow_assignable<T1, TT1>::value &&
+        noexcept((std::is_nothrow_assignable<T1, TT1>::value &&
                               std::is_nothrow_assignable<T2, TT2>::value))
     { first = std::move(p.first); second = std::move(p.second); return *this; }
-#endif
 
     Q_DECL_RELAXED_CONSTEXPR void swap(QPair &other)
-        Q_DECL_NOEXCEPT_EXPR(noexcept(qSwap(other.first, other.first)) && noexcept(qSwap(other.second, other.second)))
+        noexcept(noexcept(qSwap(other.first, other.first)) && noexcept(qSwap(other.second, other.second)))
     {
         // use qSwap() to pick up ADL swaps automatically:
         qSwap(first, other.first);
@@ -97,8 +95,13 @@ struct QPair
     T2 second;
 };
 
+#if defined(__cpp_deduction_guides) && __cpp_deduction_guides >= 201606
+template<class T1, class T2>
+QPair(T1, T2) -> QPair<T1, T2>;
+#endif
+
 template <typename T1, typename T2>
-void swap(QPair<T1, T2> &lhs, QPair<T1, T2> &rhs) Q_DECL_NOEXCEPT_EXPR(noexcept(lhs.swap(rhs)))
+void swap(QPair<T1, T2> &lhs, QPair<T1, T2> &rhs) noexcept(noexcept(lhs.swap(rhs)))
 { lhs.swap(rhs); }
 
 // mark QPair<T1,T2> as complex/movable/primitive depending on the
@@ -108,45 +111,45 @@ class QTypeInfo<QPair<T1, T2> > : public QTypeInfoMerger<QPair<T1, T2>, T1, T2>
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator==(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(p1.first == p2.first && p1.second == p2.second))
+    noexcept(noexcept(p1.first == p2.first && p1.second == p2.second))
 { return p1.first == p2.first && p1.second == p2.second; }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator!=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(!(p1 == p2)))
+    noexcept(noexcept(!(p1 == p2)))
 { return !(p1 == p2); }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator<(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second)))
+    noexcept(noexcept(p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second)))
 {
     return p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second);
 }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator>(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(p2 < p1))
+    noexcept(noexcept(p2 < p1))
 {
     return p2 < p1;
 }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator<=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(!(p2 < p1)))
+    noexcept(noexcept(!(p2 < p1)))
 {
     return !(p2 < p1);
 }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_INLINE_TEMPLATE bool operator>=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(!(p1 < p2)))
+    noexcept(noexcept(!(p1 < p2)))
 {
     return !(p1 < p2);
 }
 
 template <class T1, class T2>
 Q_DECL_CONSTEXPR Q_OUTOFLINE_TEMPLATE QPair<T1, T2> qMakePair(const T1 &x, const T2 &y)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(QPair<T1, T2>(x, y)))
+    noexcept(noexcept(QPair<T1, T2>(x, y)))
 {
     return QPair<T1, T2>(x, y);
 }
diff --git a/src/corelib/tools/qpoint.h b/src/corelib/tools/qpoint.h
index d7323f7707..34df673b93 100644
--- a/src/corelib/tools/qpoint.h
+++ b/src/corelib/tools/qpoint.h
@@ -94,7 +94,7 @@ public:
     friend Q_DECL_CONSTEXPR inline const QPoint operator/(const QPoint &, qreal);
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT CGPoint toCGPoint() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT CGPoint toCGPoint() const noexcept;
 #endif
 
 private:
@@ -256,8 +256,8 @@ public:
     Q_DECL_CONSTEXPR QPoint toPoint() const;
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT static QPointF fromCGPoint(CGPoint point) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT CGPoint toCGPoint() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT static QPointF fromCGPoint(CGPoint point) noexcept;
+    Q_REQUIRED_RESULT CGPoint toCGPoint() const noexcept;
 #endif
 
 private:
diff --git a/src/corelib/tools/qqueue.h b/src/corelib/tools/qqueue.h
index b55f210577..d5a60ada56 100644
--- a/src/corelib/tools/qqueue.h
+++ b/src/corelib/tools/qqueue.h
@@ -50,11 +50,11 @@ class QQueue : public QList<T>
 {
 public:
     // compiler-generated special member functions are fine!
-    inline void swap(QQueue<T> &other) Q_DECL_NOTHROW { QList<T>::swap(other); } // prevent QList<->QQueue swaps
+    inline void swap(QQueue<T> &other) noexcept { QList<T>::swap(other); } // prevent QList<->QQueue swaps
 #ifndef Q_QDOC
     // bring in QList::swap(int, int). We cannot say using QList<T>::swap,
     // because we don't want to make swap(QList&) available.
-    inline void swap(int i, int j) { QList<T>::swap(i, j); }
+    Q_DECL_DEPRECATED inline void swap(int i, int j) { QList<T>::swapItemsAt(i, j); }
 #endif
     inline void enqueue(const T &t) { QList<T>::append(t); }
     inline T dequeue() { return QList<T>::takeFirst(); }
diff --git a/src/corelib/tools/qrect.cpp b/src/corelib/tools/qrect.cpp
index 6e51deebea..d622f92530 100644
--- a/src/corelib/tools/qrect.cpp
+++ b/src/corelib/tools/qrect.cpp
@@ -300,7 +300,7 @@ QT_BEGIN_NAMESPACE
     \sa isValid(), isEmpty()
 */
 
-QRect QRect::normalized() const Q_DECL_NOTHROW
+QRect QRect::normalized() const noexcept
 {
     QRect r;
     if (x2 < x1 - 1) {                                // swap bad x values
@@ -820,7 +820,7 @@ QRect QRect::normalized() const Q_DECL_NOTHROW
     \sa intersects()
 */
 
-bool QRect::contains(const QPoint &p, bool proper) const Q_DECL_NOTHROW
+bool QRect::contains(const QPoint &p, bool proper) const noexcept
 {
     int l, r;
     if (x2 < x1 - 1) {
@@ -884,7 +884,7 @@ bool QRect::contains(const QPoint &p, bool proper) const Q_DECL_NOTHROW
     rectangle (not on the edge).
 */
 
-bool QRect::contains(const QRect &r, bool proper) const Q_DECL_NOTHROW
+bool QRect::contains(const QRect &r, bool proper) const noexcept
 {
     if (isNull() || r.isNull())
         return false;
@@ -962,7 +962,7 @@ bool QRect::contains(const QRect &r, bool proper) const Q_DECL_NOTHROW
     \sa operator|=(), united()
 */
 
-QRect QRect::operator|(const QRect &r) const Q_DECL_NOTHROW
+QRect QRect::operator|(const QRect &r) const noexcept
 {
     if (isNull())
         return r;
@@ -1033,7 +1033,7 @@ QRect QRect::operator|(const QRect &r) const Q_DECL_NOTHROW
     \sa operator&=(), intersected()
 */
 
-QRect QRect::operator&(const QRect &r) const Q_DECL_NOTHROW
+QRect QRect::operator&(const QRect &r) const noexcept
 {
     if (isNull() || r.isNull())
         return QRect();
@@ -1112,7 +1112,7 @@ QRect QRect::operator&(const QRect &r) const Q_DECL_NOTHROW
     \sa contains()
 */
 
-bool QRect::intersects(const QRect &r) const Q_DECL_NOTHROW
+bool QRect::intersects(const QRect &r) const noexcept
 {
     if (isNull() || r.isNull())
         return false;
@@ -1540,7 +1540,7 @@ QDebug operator<<(QDebug dbg, const QRect &r)
     \sa isValid(), isEmpty()
 */
 
-QRectF QRectF::normalized() const Q_DECL_NOTHROW
+QRectF QRectF::normalized() const noexcept
 {
     QRectF r = *this;
     if (r.w < 0) {
@@ -1964,7 +1964,7 @@ QRectF QRectF::normalized() const Q_DECL_NOTHROW
     \sa intersects()
 */
 
-bool QRectF::contains(const QPointF &p) const Q_DECL_NOTHROW
+bool QRectF::contains(const QPointF &p) const noexcept
 {
     qreal l = xp;
     qreal r = xp;
@@ -2010,7 +2010,7 @@ bool QRectF::contains(const QPointF &p) const Q_DECL_NOTHROW
     otherwise returns \c false.
 */
 
-bool QRectF::contains(const QRectF &r) const Q_DECL_NOTHROW
+bool QRectF::contains(const QRectF &r) const noexcept
 {
     qreal l1 = xp;
     qreal r1 = xp;
@@ -2148,7 +2148,7 @@ bool QRectF::contains(const QRectF &r) const Q_DECL_NOTHROW
     \sa united(), operator|=()
 */
 
-QRectF QRectF::operator|(const QRectF &r) const Q_DECL_NOTHROW
+QRectF QRectF::operator|(const QRectF &r) const noexcept
 {
     if (isNull())
         return r;
@@ -2217,7 +2217,7 @@ QRectF QRectF::operator|(const QRectF &r) const Q_DECL_NOTHROW
     \sa operator&=(), intersected()
 */
 
-QRectF QRectF::operator&(const QRectF &r) const Q_DECL_NOTHROW
+QRectF QRectF::operator&(const QRectF &r) const noexcept
 {
     qreal l1 = xp;
     qreal r1 = xp;
@@ -2302,7 +2302,7 @@ QRectF QRectF::operator&(const QRectF &r) const Q_DECL_NOTHROW
     \sa contains()
 */
 
-bool QRectF::intersects(const QRectF &r) const Q_DECL_NOTHROW
+bool QRectF::intersects(const QRectF &r) const noexcept
 {
     qreal l1 = xp;
     qreal r1 = xp;
@@ -2369,7 +2369,7 @@ bool QRectF::intersects(const QRectF &r) const Q_DECL_NOTHROW
     \sa toRect()
 */
 
-QRect QRectF::toAlignedRect() const Q_DECL_NOTHROW
+QRect QRectF::toAlignedRect() const noexcept
 {
     int xmin = int(qFloor(xp));
     int xmax = int(qCeil(xp + w));
diff --git a/src/corelib/tools/qrect.h b/src/corelib/tools/qrect.h
index 3b40055b5a..7aa2312f38 100644
--- a/src/corelib/tools/qrect.h
+++ b/src/corelib/tools/qrect.h
@@ -57,104 +57,104 @@ QT_BEGIN_NAMESPACE
 class Q_CORE_EXPORT QRect
 {
 public:
-    Q_DECL_CONSTEXPR QRect() Q_DECL_NOTHROW : x1(0), y1(0), x2(-1), y2(-1) {}
-    Q_DECL_CONSTEXPR QRect(const QPoint &topleft, const QPoint &bottomright) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QRect(const QPoint &topleft, const QSize &size) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QRect(int left, int top, int width, int height) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline bool isNull() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isEmpty() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isValid() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline int left() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int top() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int right() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int bottom() const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QRect normalized() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline int x() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int y() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setLeft(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setTop(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setRight(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottom(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setX(int x) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setY(int y) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void setTopLeft(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottomRight(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setTopRight(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottomLeft(const QPoint &p) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline QPoint topLeft() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QPoint bottomRight() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QPoint topRight() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QPoint bottomLeft() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QPoint center() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void moveLeft(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTop(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveRight(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottom(int pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTopLeft(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomRight(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTopRight(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomLeft(const QPoint &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveCenter(const QPoint &p) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void translate(int dx, int dy) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void translate(const QPoint &p) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect translated(int dx, int dy) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect translated(const QPoint &p) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect transposed() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(int x, int t) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(const QPoint &p) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void setRect(int x, int y, int w, int h) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QRect() noexcept : x1(0), y1(0), x2(-1), y2(-1) {}
+    Q_DECL_CONSTEXPR QRect(const QPoint &topleft, const QPoint &bottomright) noexcept;
+    Q_DECL_CONSTEXPR QRect(const QPoint &topleft, const QSize &size) noexcept;
+    Q_DECL_CONSTEXPR QRect(int left, int top, int width, int height) noexcept;
+
+    Q_DECL_CONSTEXPR inline bool isNull() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
+
+    Q_DECL_CONSTEXPR inline int left() const noexcept;
+    Q_DECL_CONSTEXPR inline int top() const noexcept;
+    Q_DECL_CONSTEXPR inline int right() const noexcept;
+    Q_DECL_CONSTEXPR inline int bottom() const noexcept;
+    Q_REQUIRED_RESULT QRect normalized() const noexcept;
+
+    Q_DECL_CONSTEXPR inline int x() const noexcept;
+    Q_DECL_CONSTEXPR inline int y() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setLeft(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setTop(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setRight(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottom(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setX(int x) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setY(int y) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void setTopLeft(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottomRight(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setTopRight(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottomLeft(const QPoint &p) noexcept;
+
+    Q_DECL_CONSTEXPR inline QPoint topLeft() const noexcept;
+    Q_DECL_CONSTEXPR inline QPoint bottomRight() const noexcept;
+    Q_DECL_CONSTEXPR inline QPoint topRight() const noexcept;
+    Q_DECL_CONSTEXPR inline QPoint bottomLeft() const noexcept;
+    Q_DECL_CONSTEXPR inline QPoint center() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void moveLeft(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTop(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveRight(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottom(int pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTopLeft(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomRight(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTopRight(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomLeft(const QPoint &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveCenter(const QPoint &p) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void translate(int dx, int dy) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void translate(const QPoint &p) noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect translated(int dx, int dy) const noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect translated(const QPoint &p) const noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect transposed() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(int x, int t) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(const QPoint &p) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void setRect(int x, int y, int w, int h) noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline void getRect(int *x, int *y, int *w, int *h) const;
 
-    Q_DECL_RELAXED_CONSTEXPR inline void setCoords(int x1, int y1, int x2, int y2) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR inline void setCoords(int x1, int y1, int x2, int y2) noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline void getCoords(int *x1, int *y1, int *x2, int *y2) const;
 
-    Q_DECL_RELAXED_CONSTEXPR inline void adjust(int x1, int y1, int x2, int y2) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect adjusted(int x1, int y1, int x2, int y2) const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline QSize size() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int width() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int height() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(int w) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(int h) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setSize(const QSize &s) Q_DECL_NOTHROW;
-
-    QRect operator|(const QRect &r) const Q_DECL_NOTHROW;
-    QRect operator&(const QRect &r) const Q_DECL_NOTHROW;
-    inline QRect& operator|=(const QRect &r) Q_DECL_NOTHROW;
-    inline QRect& operator&=(const QRect &r) Q_DECL_NOTHROW;
-
-    bool contains(const QRect &r, bool proper = false) const Q_DECL_NOTHROW;
-    bool contains(const QPoint &p, bool proper=false) const Q_DECL_NOTHROW;
-    inline bool contains(int x, int y) const Q_DECL_NOTHROW;
-    inline bool contains(int x, int y, bool proper) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT inline QRect united(const QRect &other) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT inline QRect intersected(const QRect &other) const Q_DECL_NOTHROW;
-    bool intersects(const QRect &r) const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline QRect marginsAdded(const QMargins &margins) const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QRect marginsRemoved(const QMargins &margins) const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QRect &operator+=(const QMargins &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QRect &operator-=(const QMargins &margins) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR inline void adjust(int x1, int y1, int x2, int y2) noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect adjusted(int x1, int y1, int x2, int y2) const noexcept;
+
+    Q_DECL_CONSTEXPR inline QSize size() const noexcept;
+    Q_DECL_CONSTEXPR inline int width() const noexcept;
+    Q_DECL_CONSTEXPR inline int height() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(int w) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(int h) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setSize(const QSize &s) noexcept;
+
+    QRect operator|(const QRect &r) const noexcept;
+    QRect operator&(const QRect &r) const noexcept;
+    inline QRect& operator|=(const QRect &r) noexcept;
+    inline QRect& operator&=(const QRect &r) noexcept;
+
+    bool contains(const QRect &r, bool proper = false) const noexcept;
+    bool contains(const QPoint &p, bool proper=false) const noexcept;
+    inline bool contains(int x, int y) const noexcept;
+    inline bool contains(int x, int y, bool proper) const noexcept;
+    Q_REQUIRED_RESULT inline QRect united(const QRect &other) const noexcept;
+    Q_REQUIRED_RESULT inline QRect intersected(const QRect &other) const noexcept;
+    bool intersects(const QRect &r) const noexcept;
+
+    Q_DECL_CONSTEXPR inline QRect marginsAdded(const QMargins &margins) const noexcept;
+    Q_DECL_CONSTEXPR inline QRect marginsRemoved(const QMargins &margins) const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QRect &operator+=(const QMargins &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QRect &operator-=(const QMargins &margins) noexcept;
 
 #if QT_DEPRECATED_SINCE(5, 0)
-    Q_REQUIRED_RESULT QT_DEPRECATED QRect unite(const QRect &r) const Q_DECL_NOTHROW { return united(r); }
-    Q_REQUIRED_RESULT QT_DEPRECATED QRect intersect(const QRect &r) const Q_DECL_NOTHROW { return intersected(r); }
+    Q_REQUIRED_RESULT QT_DEPRECATED QRect unite(const QRect &r) const noexcept { return united(r); }
+    Q_REQUIRED_RESULT QT_DEPRECATED QRect intersect(const QRect &r) const noexcept { return intersected(r); }
 #endif
 
-    friend Q_DECL_CONSTEXPR inline bool operator==(const QRect &, const QRect &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline bool operator!=(const QRect &, const QRect &) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR inline bool operator==(const QRect &, const QRect &) noexcept;
+    friend Q_DECL_CONSTEXPR inline bool operator!=(const QRect &, const QRect &) noexcept;
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT CGRect toCGRect() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT CGRect toCGRect() const noexcept;
 #endif
 
 private:
@@ -165,8 +165,8 @@ private:
 };
 Q_DECLARE_TYPEINFO(QRect, Q_MOVABLE_TYPE);
 
-Q_DECL_CONSTEXPR inline bool operator==(const QRect &, const QRect &) Q_DECL_NOTHROW;
-Q_DECL_CONSTEXPR inline bool operator!=(const QRect &, const QRect &) Q_DECL_NOTHROW;
+Q_DECL_CONSTEXPR inline bool operator==(const QRect &, const QRect &) noexcept;
+Q_DECL_CONSTEXPR inline bool operator!=(const QRect &, const QRect &) noexcept;
 
 
 /*****************************************************************************
@@ -181,97 +181,97 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QRect &);
   QRect inline member functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QRect::QRect(int aleft, int atop, int awidth, int aheight) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect::QRect(int aleft, int atop, int awidth, int aheight) noexcept
     : x1(aleft), y1(atop), x2(aleft + awidth - 1), y2(atop + aheight - 1) {}
 
-Q_DECL_CONSTEXPR inline QRect::QRect(const QPoint &atopLeft, const QPoint &abottomRight) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect::QRect(const QPoint &atopLeft, const QPoint &abottomRight) noexcept
     : x1(atopLeft.x()), y1(atopLeft.y()), x2(abottomRight.x()), y2(abottomRight.y()) {}
 
-Q_DECL_CONSTEXPR inline QRect::QRect(const QPoint &atopLeft, const QSize &asize) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect::QRect(const QPoint &atopLeft, const QSize &asize) noexcept
     : x1(atopLeft.x()), y1(atopLeft.y()), x2(atopLeft.x()+asize.width() - 1), y2(atopLeft.y()+asize.height() - 1) {}
 
-Q_DECL_CONSTEXPR inline bool QRect::isNull() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRect::isNull() const noexcept
 { return x2 == x1 - 1 && y2 == y1 - 1; }
 
-Q_DECL_CONSTEXPR inline bool QRect::isEmpty() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRect::isEmpty() const noexcept
 { return x1 > x2 || y1 > y2; }
 
-Q_DECL_CONSTEXPR inline bool QRect::isValid() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRect::isValid() const noexcept
 { return x1 <= x2 && y1 <= y2; }
 
-Q_DECL_CONSTEXPR inline int QRect::left() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::left() const noexcept
 { return x1; }
 
-Q_DECL_CONSTEXPR inline int QRect::top() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::top() const noexcept
 { return y1; }
 
-Q_DECL_CONSTEXPR inline int QRect::right() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::right() const noexcept
 { return x2; }
 
-Q_DECL_CONSTEXPR inline int QRect::bottom() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::bottom() const noexcept
 { return y2; }
 
-Q_DECL_CONSTEXPR inline int QRect::x() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::x() const noexcept
 { return x1; }
 
-Q_DECL_CONSTEXPR inline int QRect::y() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::y() const noexcept
 { return y1; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setLeft(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setLeft(int pos) noexcept
 { x1 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTop(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTop(int pos) noexcept
 { y1 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setRight(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setRight(int pos) noexcept
 { x2 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottom(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottom(int pos) noexcept
 { y2 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTopLeft(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTopLeft(const QPoint &p) noexcept
 { x1 = p.x(); y1 = p.y(); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottomRight(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottomRight(const QPoint &p) noexcept
 { x2 = p.x(); y2 = p.y(); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTopRight(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setTopRight(const QPoint &p) noexcept
 { x2 = p.x(); y1 = p.y(); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottomLeft(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setBottomLeft(const QPoint &p) noexcept
 { x1 = p.x(); y2 = p.y(); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setX(int ax) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setX(int ax) noexcept
 { x1 = ax; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setY(int ay) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setY(int ay) noexcept
 { y1 = ay; }
 
-Q_DECL_CONSTEXPR inline QPoint QRect::topLeft() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPoint QRect::topLeft() const noexcept
 { return QPoint(x1, y1); }
 
-Q_DECL_CONSTEXPR inline QPoint QRect::bottomRight() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPoint QRect::bottomRight() const noexcept
 { return QPoint(x2, y2); }
 
-Q_DECL_CONSTEXPR inline QPoint QRect::topRight() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPoint QRect::topRight() const noexcept
 { return QPoint(x2, y1); }
 
-Q_DECL_CONSTEXPR inline QPoint QRect::bottomLeft() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPoint QRect::bottomLeft() const noexcept
 { return QPoint(x1, y2); }
 
-Q_DECL_CONSTEXPR inline QPoint QRect::center() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPoint QRect::center() const noexcept
 { return QPoint(int((qint64(x1)+x2)/2), int((qint64(y1)+y2)/2)); } // cast avoids overflow on addition
 
-Q_DECL_CONSTEXPR inline int QRect::width() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::width() const noexcept
 { return  x2 - x1 + 1; }
 
-Q_DECL_CONSTEXPR inline int QRect::height() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QRect::height() const noexcept
 { return  y2 - y1 + 1; }
 
-Q_DECL_CONSTEXPR inline QSize QRect::size() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSize QRect::size() const noexcept
 { return QSize(width(), height()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(int dx, int dy) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(int dx, int dy) noexcept
 {
     x1 += dx;
     y1 += dy;
@@ -279,7 +279,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(int dx, int dy) Q_DECL_NOT
     y2 += dy;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(const QPoint &p) noexcept
 {
     x1 += p.x();
     y1 += p.y();
@@ -287,16 +287,16 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::translate(const QPoint &p) Q_DECL_NO
     y2 += p.y();
 }
 
-Q_DECL_CONSTEXPR inline QRect QRect::translated(int dx, int dy) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::translated(int dx, int dy) const noexcept
 { return QRect(QPoint(x1 + dx, y1 + dy), QPoint(x2 + dx, y2 + dy)); }
 
-Q_DECL_CONSTEXPR inline QRect QRect::translated(const QPoint &p) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::translated(const QPoint &p) const noexcept
 { return QRect(QPoint(x1 + p.x(), y1 + p.y()), QPoint(x2 + p.x(), y2 + p.y())); }
 
-Q_DECL_CONSTEXPR inline QRect QRect::transposed() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::transposed() const noexcept
 { return QRect(topLeft(), size().transposed()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(int ax, int ay) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(int ax, int ay) noexcept
 {
     x2 += ax - x1;
     y2 += ay - y1;
@@ -304,7 +304,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(int ax, int ay) Q_DECL_NOTHRO
     y1 = ay;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(const QPoint &p) noexcept
 {
     x2 += p.x() - x1;
     y2 += p.y() - y1;
@@ -312,49 +312,49 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTo(const QPoint &p) Q_DECL_NOTHR
     y1 = p.y();
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveLeft(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveLeft(int pos) noexcept
 { x2 += (pos - x1); x1 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTop(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTop(int pos) noexcept
 { y2 += (pos - y1); y1 = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveRight(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveRight(int pos) noexcept
 {
     x1 += (pos - x2);
     x2 = pos;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottom(int pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottom(int pos) noexcept
 {
     y1 += (pos - y2);
     y2 = pos;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTopLeft(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTopLeft(const QPoint &p) noexcept
 {
     moveLeft(p.x());
     moveTop(p.y());
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottomRight(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottomRight(const QPoint &p) noexcept
 {
     moveRight(p.x());
     moveBottom(p.y());
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTopRight(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveTopRight(const QPoint &p) noexcept
 {
     moveRight(p.x());
     moveTop(p.y());
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottomLeft(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveBottomLeft(const QPoint &p) noexcept
 {
     moveLeft(p.x());
     moveBottom(p.y());
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveCenter(const QPoint &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::moveCenter(const QPoint &p) noexcept
 {
     int w = x2 - x1;
     int h = y2 - y1;
@@ -372,7 +372,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::getRect(int *ax, int *ay, int *aw, i
     *ah = y2 - y1 + 1;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setRect(int ax, int ay, int aw, int ah) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setRect(int ax, int ay, int aw, int ah) noexcept
 {
     x1 = ax;
     y1 = ay;
@@ -388,7 +388,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::getCoords(int *xp1, int *yp1, int *x
     *yp2 = y2;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setCoords(int xp1, int yp1, int xp2, int yp2) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setCoords(int xp1, int yp1, int xp2, int yp2) noexcept
 {
     x1 = xp1;
     y1 = yp1;
@@ -396,10 +396,10 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::setCoords(int xp1, int yp1, int xp2,
     y2 = yp2;
 }
 
-Q_DECL_CONSTEXPR inline QRect QRect::adjusted(int xp1, int yp1, int xp2, int yp2) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::adjusted(int xp1, int yp1, int xp2, int yp2) const noexcept
 { return QRect(QPoint(x1 + xp1, y1 + yp1), QPoint(x2 + xp2, y2 + yp2)); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::adjust(int dx1, int dy1, int dx2, int dy2) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::adjust(int dx1, int dy1, int dx2, int dy2) noexcept
 {
     x1 += dx1;
     y1 += dy1;
@@ -407,97 +407,97 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRect::adjust(int dx1, int dy1, int dx2, in
     y2 += dy2;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setWidth(int w) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setWidth(int w) noexcept
 { x2 = (x1 + w - 1); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setHeight(int h) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setHeight(int h) noexcept
 { y2 = (y1 + h - 1); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRect::setSize(const QSize &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRect::setSize(const QSize &s) noexcept
 {
     x2 = (s.width()  + x1 - 1);
     y2 = (s.height() + y1 - 1);
 }
 
-inline bool QRect::contains(int ax, int ay, bool aproper) const Q_DECL_NOTHROW
+inline bool QRect::contains(int ax, int ay, bool aproper) const noexcept
 {
     return contains(QPoint(ax, ay), aproper);
 }
 
-inline bool QRect::contains(int ax, int ay) const Q_DECL_NOTHROW
+inline bool QRect::contains(int ax, int ay) const noexcept
 {
     return contains(QPoint(ax, ay), false);
 }
 
-inline QRect& QRect::operator|=(const QRect &r) Q_DECL_NOTHROW
+inline QRect& QRect::operator|=(const QRect &r) noexcept
 {
     *this = *this | r;
     return *this;
 }
 
-inline QRect& QRect::operator&=(const QRect &r) Q_DECL_NOTHROW
+inline QRect& QRect::operator&=(const QRect &r) noexcept
 {
     *this = *this & r;
     return *this;
 }
 
-inline QRect QRect::intersected(const QRect &other) const Q_DECL_NOTHROW
+inline QRect QRect::intersected(const QRect &other) const noexcept
 {
     return *this & other;
 }
 
-inline QRect QRect::united(const QRect &r) const Q_DECL_NOTHROW
+inline QRect QRect::united(const QRect &r) const noexcept
 {
     return *this | r;
 }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QRect &r1, const QRect &r2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QRect &r1, const QRect &r2) noexcept
 {
     return r1.x1==r2.x1 && r1.x2==r2.x2 && r1.y1==r2.y1 && r1.y2==r2.y2;
 }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QRect &r1, const QRect &r2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QRect &r1, const QRect &r2) noexcept
 {
     return r1.x1!=r2.x1 || r1.x2!=r2.x2 || r1.y1!=r2.y1 || r1.y2!=r2.y2;
 }
 
-Q_DECL_CONSTEXPR inline QRect operator+(const QRect &rectangle, const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect operator+(const QRect &rectangle, const QMargins &margins) noexcept
 {
     return QRect(QPoint(rectangle.left() - margins.left(), rectangle.top() - margins.top()),
                  QPoint(rectangle.right() + margins.right(), rectangle.bottom() + margins.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRect operator+(const QMargins &margins, const QRect &rectangle) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect operator+(const QMargins &margins, const QRect &rectangle) noexcept
 {
     return QRect(QPoint(rectangle.left() - margins.left(), rectangle.top() - margins.top()),
                  QPoint(rectangle.right() + margins.right(), rectangle.bottom() + margins.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRect operator-(const QRect &lhs, const QMargins &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect operator-(const QRect &lhs, const QMargins &rhs) noexcept
 {
     return QRect(QPoint(lhs.left() + rhs.left(), lhs.top() + rhs.top()),
                  QPoint(lhs.right() - rhs.right(), lhs.bottom() - rhs.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRect QRect::marginsAdded(const QMargins &margins) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::marginsAdded(const QMargins &margins) const noexcept
 {
     return QRect(QPoint(x1 - margins.left(), y1 - margins.top()),
                  QPoint(x2 + margins.right(), y2 + margins.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRect QRect::marginsRemoved(const QMargins &margins) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRect::marginsRemoved(const QMargins &margins) const noexcept
 {
     return QRect(QPoint(x1 + margins.left(), y1 + margins.top()),
                  QPoint(x2 - margins.right(), y2 - margins.bottom()));
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QRect &QRect::operator+=(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QRect &QRect::operator+=(const QMargins &margins) noexcept
 {
     *this = marginsAdded(margins);
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QRect &QRect::operator-=(const QMargins &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QRect &QRect::operator-=(const QMargins &margins) noexcept
 {
     *this = marginsRemoved(margins);
     return *this;
@@ -511,110 +511,110 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QRect &);
 class Q_CORE_EXPORT QRectF
 {
 public:
-    Q_DECL_CONSTEXPR QRectF() Q_DECL_NOTHROW : xp(0.), yp(0.), w(0.), h(0.) {}
-    Q_DECL_CONSTEXPR QRectF(const QPointF &topleft, const QSizeF &size) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QRectF(const QPointF &topleft, const QPointF &bottomRight) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QRectF(qreal left, qreal top, qreal width, qreal height) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QRectF(const QRect &rect) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline bool isNull() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isEmpty() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isValid() const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QRectF normalized() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline qreal left() const Q_DECL_NOTHROW { return xp; }
-    Q_DECL_CONSTEXPR inline qreal top() const Q_DECL_NOTHROW { return yp; }
-    Q_DECL_CONSTEXPR inline qreal right() const Q_DECL_NOTHROW { return xp + w; }
-    Q_DECL_CONSTEXPR inline qreal bottom() const Q_DECL_NOTHROW { return yp + h; }
-
-    Q_DECL_CONSTEXPR inline qreal x() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline qreal y() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setLeft(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setTop(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setRight(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottom(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setX(qreal pos) Q_DECL_NOTHROW { setLeft(pos); }
-    Q_DECL_RELAXED_CONSTEXPR inline void setY(qreal pos) Q_DECL_NOTHROW { setTop(pos); }
-
-    Q_DECL_CONSTEXPR inline QPointF topLeft() const Q_DECL_NOTHROW { return QPointF(xp, yp); }
-    Q_DECL_CONSTEXPR inline QPointF bottomRight() const Q_DECL_NOTHROW { return QPointF(xp+w, yp+h); }
-    Q_DECL_CONSTEXPR inline QPointF topRight() const Q_DECL_NOTHROW { return QPointF(xp+w, yp); }
-    Q_DECL_CONSTEXPR inline QPointF bottomLeft() const Q_DECL_NOTHROW { return QPointF(xp, yp+h); }
-    Q_DECL_CONSTEXPR inline QPointF center() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void setTopLeft(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottomRight(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setTopRight(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setBottomLeft(const QPointF &p) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void moveLeft(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTop(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveRight(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottom(qreal pos) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTopLeft(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomRight(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTopRight(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomLeft(const QPointF &p) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveCenter(const QPointF &p) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void translate(qreal dx, qreal dy) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void translate(const QPointF &p) Q_DECL_NOTHROW;
-
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF translated(qreal dx, qreal dy) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF translated(const QPointF &p) const Q_DECL_NOTHROW;
-
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF transposed() const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(qreal x, qreal y) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(const QPointF &p) Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline void setRect(qreal x, qreal y, qreal w, qreal h) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QRectF() noexcept : xp(0.), yp(0.), w(0.), h(0.) {}
+    Q_DECL_CONSTEXPR QRectF(const QPointF &topleft, const QSizeF &size) noexcept;
+    Q_DECL_CONSTEXPR QRectF(const QPointF &topleft, const QPointF &bottomRight) noexcept;
+    Q_DECL_CONSTEXPR QRectF(qreal left, qreal top, qreal width, qreal height) noexcept;
+    Q_DECL_CONSTEXPR QRectF(const QRect &rect) noexcept;
+
+    Q_DECL_CONSTEXPR inline bool isNull() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
+    Q_REQUIRED_RESULT QRectF normalized() const noexcept;
+
+    Q_DECL_CONSTEXPR inline qreal left() const noexcept { return xp; }
+    Q_DECL_CONSTEXPR inline qreal top() const noexcept { return yp; }
+    Q_DECL_CONSTEXPR inline qreal right() const noexcept { return xp + w; }
+    Q_DECL_CONSTEXPR inline qreal bottom() const noexcept { return yp + h; }
+
+    Q_DECL_CONSTEXPR inline qreal x() const noexcept;
+    Q_DECL_CONSTEXPR inline qreal y() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setLeft(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setTop(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setRight(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottom(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setX(qreal pos) noexcept { setLeft(pos); }
+    Q_DECL_RELAXED_CONSTEXPR inline void setY(qreal pos) noexcept { setTop(pos); }
+
+    Q_DECL_CONSTEXPR inline QPointF topLeft() const noexcept { return QPointF(xp, yp); }
+    Q_DECL_CONSTEXPR inline QPointF bottomRight() const noexcept { return QPointF(xp+w, yp+h); }
+    Q_DECL_CONSTEXPR inline QPointF topRight() const noexcept { return QPointF(xp+w, yp); }
+    Q_DECL_CONSTEXPR inline QPointF bottomLeft() const noexcept { return QPointF(xp, yp+h); }
+    Q_DECL_CONSTEXPR inline QPointF center() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void setTopLeft(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottomRight(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setTopRight(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setBottomLeft(const QPointF &p) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void moveLeft(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTop(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveRight(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottom(qreal pos) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTopLeft(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomRight(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTopRight(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveBottomLeft(const QPointF &p) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveCenter(const QPointF &p) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void translate(qreal dx, qreal dy) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void translate(const QPointF &p) noexcept;
+
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF translated(qreal dx, qreal dy) const noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF translated(const QPointF &p) const noexcept;
+
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF transposed() const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(qreal x, qreal y) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void moveTo(const QPointF &p) noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline void setRect(qreal x, qreal y, qreal w, qreal h) noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline void getRect(qreal *x, qreal *y, qreal *w, qreal *h) const;
 
-    Q_DECL_RELAXED_CONSTEXPR inline void setCoords(qreal x1, qreal y1, qreal x2, qreal y2) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR inline void setCoords(qreal x1, qreal y1, qreal x2, qreal y2) noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline void getCoords(qreal *x1, qreal *y1, qreal *x2, qreal *y2) const;
 
-    Q_DECL_RELAXED_CONSTEXPR inline void adjust(qreal x1, qreal y1, qreal x2, qreal y2) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF adjusted(qreal x1, qreal y1, qreal x2, qreal y2) const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline QSizeF size() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline qreal width() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline qreal height() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(qreal w) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(qreal h) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setSize(const QSizeF &s) Q_DECL_NOTHROW;
-
-    QRectF operator|(const QRectF &r) const Q_DECL_NOTHROW;
-    QRectF operator&(const QRectF &r) const Q_DECL_NOTHROW;
-    inline QRectF& operator|=(const QRectF &r) Q_DECL_NOTHROW;
-    inline QRectF& operator&=(const QRectF &r) Q_DECL_NOTHROW;
-
-    bool contains(const QRectF &r) const Q_DECL_NOTHROW;
-    bool contains(const QPointF &p) const Q_DECL_NOTHROW;
-    inline bool contains(qreal x, qreal y) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT inline QRectF united(const QRectF &other) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT inline QRectF intersected(const QRectF &other) const Q_DECL_NOTHROW;
-    bool intersects(const QRectF &r) const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline QRectF marginsAdded(const QMarginsF &margins) const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline QRectF marginsRemoved(const QMarginsF &margins) const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QRectF &operator+=(const QMarginsF &margins) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QRectF &operator-=(const QMarginsF &margins) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR inline void adjust(qreal x1, qreal y1, qreal x2, qreal y2) noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRectF adjusted(qreal x1, qreal y1, qreal x2, qreal y2) const noexcept;
+
+    Q_DECL_CONSTEXPR inline QSizeF size() const noexcept;
+    Q_DECL_CONSTEXPR inline qreal width() const noexcept;
+    Q_DECL_CONSTEXPR inline qreal height() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(qreal w) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(qreal h) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setSize(const QSizeF &s) noexcept;
+
+    QRectF operator|(const QRectF &r) const noexcept;
+    QRectF operator&(const QRectF &r) const noexcept;
+    inline QRectF& operator|=(const QRectF &r) noexcept;
+    inline QRectF& operator&=(const QRectF &r) noexcept;
+
+    bool contains(const QRectF &r) const noexcept;
+    bool contains(const QPointF &p) const noexcept;
+    inline bool contains(qreal x, qreal y) const noexcept;
+    Q_REQUIRED_RESULT inline QRectF united(const QRectF &other) const noexcept;
+    Q_REQUIRED_RESULT inline QRectF intersected(const QRectF &other) const noexcept;
+    bool intersects(const QRectF &r) const noexcept;
+
+    Q_DECL_CONSTEXPR inline QRectF marginsAdded(const QMarginsF &margins) const noexcept;
+    Q_DECL_CONSTEXPR inline QRectF marginsRemoved(const QMarginsF &margins) const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QRectF &operator+=(const QMarginsF &margins) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QRectF &operator-=(const QMarginsF &margins) noexcept;
 
 #if QT_DEPRECATED_SINCE(5, 0)
-    Q_REQUIRED_RESULT QT_DEPRECATED QRectF unite(const QRectF &r) const Q_DECL_NOTHROW { return united(r); }
-    Q_REQUIRED_RESULT QT_DEPRECATED QRectF intersect(const QRectF &r) const Q_DECL_NOTHROW { return intersected(r); }
+    Q_REQUIRED_RESULT QT_DEPRECATED QRectF unite(const QRectF &r) const noexcept { return united(r); }
+    Q_REQUIRED_RESULT QT_DEPRECATED QRectF intersect(const QRectF &r) const noexcept { return intersected(r); }
 #endif
 
-    friend Q_DECL_CONSTEXPR inline bool operator==(const QRectF &, const QRectF &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &, const QRectF &) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR inline bool operator==(const QRectF &, const QRectF &) noexcept;
+    friend Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &, const QRectF &) noexcept;
 
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect toRect() const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QRect toAlignedRect() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QRect toRect() const noexcept;
+    Q_REQUIRED_RESULT QRect toAlignedRect() const noexcept;
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT static QRectF fromCGRect(CGRect rect) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT CGRect toCGRect() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT static QRectF fromCGRect(CGRect rect) noexcept;
+    Q_REQUIRED_RESULT CGRect toCGRect() const noexcept;
 #endif
 
 private:
@@ -625,8 +625,8 @@ private:
 };
 Q_DECLARE_TYPEINFO(QRectF, Q_MOVABLE_TYPE);
 
-Q_DECL_CONSTEXPR inline bool operator==(const QRectF &, const QRectF &) Q_DECL_NOTHROW;
-Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &, const QRectF &) Q_DECL_NOTHROW;
+Q_DECL_CONSTEXPR inline bool operator==(const QRectF &, const QRectF &) noexcept;
+Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &, const QRectF &) noexcept;
 
 
 /*****************************************************************************
@@ -641,23 +641,23 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QRectF &);
   QRectF inline member functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QRectF::QRectF(qreal aleft, qreal atop, qreal awidth, qreal aheight) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF::QRectF(qreal aleft, qreal atop, qreal awidth, qreal aheight) noexcept
     : xp(aleft), yp(atop), w(awidth), h(aheight)
 {
 }
 
-Q_DECL_CONSTEXPR inline QRectF::QRectF(const QPointF &atopLeft, const QSizeF &asize) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF::QRectF(const QPointF &atopLeft, const QSizeF &asize) noexcept
     : xp(atopLeft.x()), yp(atopLeft.y()), w(asize.width()), h(asize.height())
 {
 }
 
 
-Q_DECL_CONSTEXPR inline QRectF::QRectF(const QPointF &atopLeft, const QPointF &abottomRight) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF::QRectF(const QPointF &atopLeft, const QPointF &abottomRight) noexcept
     : xp(atopLeft.x()), yp(atopLeft.y()), w(abottomRight.x() - atopLeft.x()), h(abottomRight.y() - atopLeft.y())
 {
 }
 
-Q_DECL_CONSTEXPR inline QRectF::QRectF(const QRect &r) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF::QRectF(const QRect &r) noexcept
     : xp(r.x()), yp(r.y()), w(r.width()), h(r.height())
 {
 }
@@ -666,117 +666,117 @@ QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
 QT_WARNING_DISABLE_GCC("-Wfloat-equal")
 
-Q_DECL_CONSTEXPR inline bool QRectF::isNull() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRectF::isNull() const noexcept
 { return w == 0. && h == 0.; }
 
-Q_DECL_CONSTEXPR inline bool QRectF::isEmpty() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRectF::isEmpty() const noexcept
 { return w <= 0. || h <= 0.; }
 
 QT_WARNING_POP
 
-Q_DECL_CONSTEXPR inline bool QRectF::isValid() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QRectF::isValid() const noexcept
 { return w > 0. && h > 0.; }
 
-Q_DECL_CONSTEXPR inline qreal QRectF::x() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QRectF::x() const noexcept
 { return xp; }
 
-Q_DECL_CONSTEXPR inline qreal QRectF::y() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QRectF::y() const noexcept
 { return yp; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setLeft(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setLeft(qreal pos) noexcept
 { qreal diff = pos - xp; xp += diff; w -= diff; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setRight(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setRight(qreal pos) noexcept
 { w = pos - xp; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTop(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTop(qreal pos) noexcept
 { qreal diff = pos - yp; yp += diff; h -= diff; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottom(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottom(qreal pos) noexcept
 { h = pos - yp; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTopLeft(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTopLeft(const QPointF &p) noexcept
 { setLeft(p.x()); setTop(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTopRight(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setTopRight(const QPointF &p) noexcept
 { setRight(p.x()); setTop(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottomLeft(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottomLeft(const QPointF &p) noexcept
 { setLeft(p.x()); setBottom(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottomRight(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setBottomRight(const QPointF &p) noexcept
 { setRight(p.x()); setBottom(p.y()); }
 
-Q_DECL_CONSTEXPR inline QPointF QRectF::center() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QPointF QRectF::center() const noexcept
 { return QPointF(xp + w/2, yp + h/2); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveLeft(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveLeft(qreal pos) noexcept
 { xp = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTop(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTop(qreal pos) noexcept
 { yp = pos; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveRight(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveRight(qreal pos) noexcept
 { xp = pos - w; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottom(qreal pos) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottom(qreal pos) noexcept
 { yp = pos - h; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTopLeft(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTopLeft(const QPointF &p) noexcept
 { moveLeft(p.x()); moveTop(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTopRight(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTopRight(const QPointF &p) noexcept
 { moveRight(p.x()); moveTop(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottomLeft(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottomLeft(const QPointF &p) noexcept
 { moveLeft(p.x()); moveBottom(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottomRight(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveBottomRight(const QPointF &p) noexcept
 { moveRight(p.x()); moveBottom(p.y()); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveCenter(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveCenter(const QPointF &p) noexcept
 { xp = p.x() - w/2; yp = p.y() - h/2; }
 
-Q_DECL_CONSTEXPR inline qreal QRectF::width() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QRectF::width() const noexcept
 { return w; }
 
-Q_DECL_CONSTEXPR inline qreal QRectF::height() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QRectF::height() const noexcept
 { return h; }
 
-Q_DECL_CONSTEXPR inline QSizeF QRectF::size() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSizeF QRectF::size() const noexcept
 { return QSizeF(w, h); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::translate(qreal dx, qreal dy) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::translate(qreal dx, qreal dy) noexcept
 {
     xp += dx;
     yp += dy;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::translate(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::translate(const QPointF &p) noexcept
 {
     xp += p.x();
     yp += p.y();
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTo(qreal ax, qreal ay) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTo(qreal ax, qreal ay) noexcept
 {
     xp = ax;
     yp = ay;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTo(const QPointF &p) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::moveTo(const QPointF &p) noexcept
 {
     xp = p.x();
     yp = p.y();
 }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::translated(qreal dx, qreal dy) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::translated(qreal dx, qreal dy) const noexcept
 { return QRectF(xp + dx, yp + dy, w, h); }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::translated(const QPointF &p) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::translated(const QPointF &p) const noexcept
 { return QRectF(xp + p.x(), yp + p.y(), w, h); }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::transposed() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::transposed() const noexcept
 { return QRectF(topLeft(), size().transposed()); }
 
 Q_DECL_RELAXED_CONSTEXPR inline void QRectF::getRect(qreal *ax, qreal *ay, qreal *aaw, qreal *aah) const
@@ -787,7 +787,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRectF::getRect(qreal *ax, qreal *ay, qreal
     *aah = this->h;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setRect(qreal ax, qreal ay, qreal aaw, qreal aah) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setRect(qreal ax, qreal ay, qreal aaw, qreal aah) noexcept
 {
     this->xp = ax;
     this->yp = ay;
@@ -803,7 +803,7 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRectF::getCoords(qreal *xp1, qreal *yp1, q
     *yp2 = yp + h;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setCoords(qreal xp1, qreal yp1, qreal xp2, qreal yp2) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setCoords(qreal xp1, qreal yp1, qreal xp2, qreal yp2) noexcept
 {
     xp = xp1;
     yp = yp1;
@@ -811,105 +811,105 @@ Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setCoords(qreal xp1, qreal yp1, qre
     h = yp2 - yp1;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::adjust(qreal xp1, qreal yp1, qreal xp2, qreal yp2) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::adjust(qreal xp1, qreal yp1, qreal xp2, qreal yp2) noexcept
 { xp += xp1; yp += yp1; w += xp2 - xp1; h += yp2 - yp1; }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::adjusted(qreal xp1, qreal yp1, qreal xp2, qreal yp2) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::adjusted(qreal xp1, qreal yp1, qreal xp2, qreal yp2) const noexcept
 { return QRectF(xp + xp1, yp + yp1, w + xp2 - xp1, h + yp2 - yp1); }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setWidth(qreal aw) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setWidth(qreal aw) noexcept
 { this->w = aw; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setHeight(qreal ah) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setHeight(qreal ah) noexcept
 { this->h = ah; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setSize(const QSizeF &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QRectF::setSize(const QSizeF &s) noexcept
 {
     w = s.width();
     h = s.height();
 }
 
-inline bool QRectF::contains(qreal ax, qreal ay) const Q_DECL_NOTHROW
+inline bool QRectF::contains(qreal ax, qreal ay) const noexcept
 {
     return contains(QPointF(ax, ay));
 }
 
-inline QRectF& QRectF::operator|=(const QRectF &r) Q_DECL_NOTHROW
+inline QRectF& QRectF::operator|=(const QRectF &r) noexcept
 {
     *this = *this | r;
     return *this;
 }
 
-inline QRectF& QRectF::operator&=(const QRectF &r) Q_DECL_NOTHROW
+inline QRectF& QRectF::operator&=(const QRectF &r) noexcept
 {
     *this = *this & r;
     return *this;
 }
 
-inline QRectF QRectF::intersected(const QRectF &r) const Q_DECL_NOTHROW
+inline QRectF QRectF::intersected(const QRectF &r) const noexcept
 {
     return *this & r;
 }
 
-inline QRectF QRectF::united(const QRectF &r) const Q_DECL_NOTHROW
+inline QRectF QRectF::united(const QRectF &r) const noexcept
 {
     return *this | r;
 }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QRectF &r1, const QRectF &r2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QRectF &r1, const QRectF &r2) noexcept
 {
     return qFuzzyCompare(r1.xp, r2.xp) && qFuzzyCompare(r1.yp, r2.yp)
            && qFuzzyCompare(r1.w, r2.w) && qFuzzyCompare(r1.h, r2.h);
 }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &r1, const QRectF &r2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QRectF &r1, const QRectF &r2) noexcept
 {
     return !qFuzzyCompare(r1.xp, r2.xp) || !qFuzzyCompare(r1.yp, r2.yp)
            || !qFuzzyCompare(r1.w, r2.w) || !qFuzzyCompare(r1.h, r2.h);
 }
 
-Q_DECL_CONSTEXPR inline QRect QRectF::toRect() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRect QRectF::toRect() const noexcept
 {
     return QRect(QPoint(qRound(xp), qRound(yp)), QPoint(qRound(xp + w) - 1, qRound(yp + h) - 1));
 }
 
-Q_DECL_CONSTEXPR inline QRectF operator+(const QRectF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF operator+(const QRectF &lhs, const QMarginsF &rhs) noexcept
 {
     return QRectF(QPointF(lhs.left() - rhs.left(), lhs.top() - rhs.top()),
                   QSizeF(lhs.width() + rhs.left() + rhs.right(), lhs.height() + rhs.top() + rhs.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRectF operator+(const QMarginsF &lhs, const QRectF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF operator+(const QMarginsF &lhs, const QRectF &rhs) noexcept
 {
     return QRectF(QPointF(rhs.left() - lhs.left(), rhs.top() - lhs.top()),
                   QSizeF(rhs.width() + lhs.left() + lhs.right(), rhs.height() + lhs.top() + lhs.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRectF operator-(const QRectF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF operator-(const QRectF &lhs, const QMarginsF &rhs) noexcept
 {
     return QRectF(QPointF(lhs.left() + rhs.left(), lhs.top() + rhs.top()),
                   QSizeF(lhs.width() - rhs.left() - rhs.right(), lhs.height() - rhs.top() - rhs.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::marginsAdded(const QMarginsF &margins) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::marginsAdded(const QMarginsF &margins) const noexcept
 {
     return QRectF(QPointF(xp - margins.left(), yp - margins.top()),
                   QSizeF(w + margins.left() + margins.right(), h + margins.top() + margins.bottom()));
 }
 
-Q_DECL_CONSTEXPR inline QRectF QRectF::marginsRemoved(const QMarginsF &margins) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QRectF QRectF::marginsRemoved(const QMarginsF &margins) const noexcept
 {
     return QRectF(QPointF(xp + margins.left(), yp + margins.top()),
                   QSizeF(w - margins.left() - margins.right(), h - margins.top() - margins.bottom()));
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QRectF &QRectF::operator+=(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QRectF &QRectF::operator+=(const QMarginsF &margins) noexcept
 {
     *this = marginsAdded(margins);
     return *this;
 }
 
-Q_DECL_RELAXED_CONSTEXPR inline QRectF &QRectF::operator-=(const QMarginsF &margins) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QRectF &QRectF::operator-=(const QMarginsF &margins) noexcept
 {
     *this = marginsRemoved(margins);
     return *this;
diff --git a/src/corelib/tools/qrefcount.h b/src/corelib/tools/qrefcount.h
index 9586c3a79a..71adb41f28 100644
--- a/src/corelib/tools/qrefcount.h
+++ b/src/corelib/tools/qrefcount.h
@@ -51,7 +51,7 @@ namespace QtPrivate
 class RefCount
 {
 public:
-    inline bool ref() Q_DECL_NOTHROW {
+    inline bool ref() noexcept {
         int count = atomic.load();
 #if !defined(QT_NO_UNSHARABLE_CONTAINERS)
         if (count == 0) // !isSharable
@@ -62,7 +62,7 @@ public:
         return true;
     }
 
-    inline bool deref() Q_DECL_NOTHROW {
+    inline bool deref() noexcept {
         int count = atomic.load();
 #if !defined(QT_NO_UNSHARABLE_CONTAINERS)
         if (count == 0) // !isSharable
@@ -74,7 +74,7 @@ public:
     }
 
 #if !defined(QT_NO_UNSHARABLE_CONTAINERS)
-    bool setSharable(bool sharable) Q_DECL_NOTHROW
+    bool setSharable(bool sharable) noexcept
     {
         Q_ASSERT(!isShared());
         if (sharable)
@@ -83,27 +83,27 @@ public:
             return atomic.testAndSetRelaxed(1, 0);
     }
 
-    bool isSharable() const Q_DECL_NOTHROW
+    bool isSharable() const noexcept
     {
         // Sharable === Shared ownership.
         return atomic.load() != 0;
     }
 #endif
 
-    bool isStatic() const Q_DECL_NOTHROW
+    bool isStatic() const noexcept
     {
         // Persistent object, never deleted
         return atomic.load() == -1;
     }
 
-    bool isShared() const Q_DECL_NOTHROW
+    bool isShared() const noexcept
     {
         int count = atomic.load();
         return (count != 1) && (count != 0);
     }
 
-    void initializeOwned() Q_DECL_NOTHROW { atomic.store(1); }
-    void initializeUnsharable() Q_DECL_NOTHROW { atomic.store(0); }
+    void initializeOwned() noexcept { atomic.store(1); }
+    void initializeUnsharable() noexcept { atomic.store(0); }
 
     QBasicAtomicInt atomic;
 };
diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp
index 87b30c952e..d970843dea 100644
--- a/src/corelib/tools/qregexp.cpp
+++ b/src/corelib/tools/qregexp.cpp
@@ -58,9 +58,6 @@
 
 QT_BEGIN_NAMESPACE
 
-int qFindString(const QChar *haystack, int haystackLen, int from,
-    const QChar *needle, int needleLen, Qt::CaseSensitivity cs);
-
 // error strings for the regexp parser
 #define RXERR_OK         QT_TRANSLATE_NOOP("QRegExp", "no error occurred")
 #define RXERR_DISABLED   QT_TRANSLATE_NOOP("QRegExp", "disabled feature used")
@@ -893,7 +890,7 @@ static bool operator==(const QRegExpEngineKey &key1, const QRegExpEngineKey &key
            && key1.cs == key2.cs;
 }
 
-static uint qHash(const QRegExpEngineKey &key, uint seed = 0) Q_DECL_NOTHROW
+static uint qHash(const QRegExpEngineKey &key, uint seed = 0) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.pattern);
@@ -1423,7 +1420,8 @@ void QRegExpMatchState::match(const QChar *str0, int len0, int pos0,
 
 #ifndef QT_NO_REGEXP_OPTIM
     if (eng->trivial && !oneTest) {
-        pos = qFindString(str0, len0, pos0, eng->goodStr.unicode(), eng->goodStr.length(), eng->cs);
+        // ### Qt6: qsize
+        pos = int(QtPrivate::findString(QStringView(str0, len0), pos0, QStringView(eng->goodStr.unicode(), eng->goodStr.length()), eng->cs));
         matchLen = eng->goodStr.length();
         matched = (pos != -1);
     } else
@@ -4048,7 +4046,7 @@ bool QRegExp::operator==(const QRegExp &rx) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QRegExp &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QRegExp &key, uint seed) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.priv->engineKey);
diff --git a/src/corelib/tools/qregexp.h b/src/corelib/tools/qregexp.h
index b3fa242168..8f6de24c74 100644
--- a/src/corelib/tools/qregexp.h
+++ b/src/corelib/tools/qregexp.h
@@ -53,7 +53,7 @@ struct QRegExpPrivate;
 class QStringList;
 class QRegExp;
 
-Q_CORE_EXPORT uint qHash(const QRegExp &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QRegExp &key, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QRegExp
 {
@@ -73,10 +73,8 @@ public:
     QRegExp(const QRegExp &rx);
     ~QRegExp();
     QRegExp &operator=(const QRegExp &rx);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QRegExp &operator=(QRegExp &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
-    void swap(QRegExp &other) Q_DECL_NOTHROW { qSwap(priv, other.priv); }
+    QRegExp &operator=(QRegExp &&other) noexcept { swap(other); return *this; }
+    void swap(QRegExp &other) noexcept { qSwap(priv, other.priv); }
 
     bool operator==(const QRegExp &rx) const;
     inline bool operator!=(const QRegExp &rx) const { return !operator==(rx); }
@@ -112,7 +110,7 @@ public:
 
     static QString escape(const QString &str);
 
-    friend Q_CORE_EXPORT uint qHash(const QRegExp &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QRegExp &key, uint seed) noexcept;
 
 private:
     QRegExpPrivate *priv;
diff --git a/src/corelib/tools/qregularexpression.cpp b/src/corelib/tools/qregularexpression.cpp
index bdaa2d3243..ca1a866842 100644
--- a/src/corelib/tools/qregularexpression.cpp
+++ b/src/corelib/tools/qregularexpression.cpp
@@ -1810,7 +1810,7 @@ bool QRegularExpression::operator==(const QRegularExpression &re) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QRegularExpression &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QRegularExpression &key, uint seed) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.d->pattern);
diff --git a/src/corelib/tools/qregularexpression.h b/src/corelib/tools/qregularexpression.h
index f9e7029550..f799a38ae4 100644
--- a/src/corelib/tools/qregularexpression.h
+++ b/src/corelib/tools/qregularexpression.h
@@ -59,7 +59,7 @@ class QRegularExpressionMatchIterator;
 struct QRegularExpressionPrivate;
 class QRegularExpression;
 
-Q_CORE_EXPORT uint qHash(const QRegularExpression &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_CORE_EXPORT uint qHash(const QRegularExpression &key, uint seed = 0) noexcept;
 
 class Q_CORE_EXPORT QRegularExpression
 {
@@ -86,13 +86,10 @@ public:
     QRegularExpression(const QRegularExpression &re);
     ~QRegularExpression();
     QRegularExpression &operator=(const QRegularExpression &re);
-
-#ifdef Q_COMPILER_RVALUE_REFS
-    QRegularExpression &operator=(QRegularExpression &&re) Q_DECL_NOTHROW
+    QRegularExpression &operator=(QRegularExpression &&re) noexcept
     { d.swap(re.d); return *this; }
-#endif
 
-    void swap(QRegularExpression &other) Q_DECL_NOTHROW { d.swap(other.d); }
+    void swap(QRegularExpression &other) noexcept { d.swap(other.d); }
 
     QString pattern() const;
     void setPattern(const QString &pattern);
@@ -157,7 +154,7 @@ private:
     friend class QRegularExpressionMatch;
     friend struct QRegularExpressionMatchPrivate;
     friend class QRegularExpressionMatchIterator;
-    friend Q_CORE_EXPORT uint qHash(const QRegularExpression &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_CORE_EXPORT uint qHash(const QRegularExpression &key, uint seed) noexcept;
 
     QRegularExpression(QRegularExpressionPrivate &dd);
     QExplicitlySharedDataPointer<QRegularExpressionPrivate> d;
@@ -186,12 +183,9 @@ public:
     ~QRegularExpressionMatch();
     QRegularExpressionMatch(const QRegularExpressionMatch &match);
     QRegularExpressionMatch &operator=(const QRegularExpressionMatch &match);
-
-#ifdef Q_COMPILER_RVALUE_REFS
-    QRegularExpressionMatch &operator=(QRegularExpressionMatch &&match) Q_DECL_NOTHROW
+    QRegularExpressionMatch &operator=(QRegularExpressionMatch &&match) noexcept
     { d.swap(match.d); return *this; }
-#endif
-    void swap(QRegularExpressionMatch &other) Q_DECL_NOTHROW { d.swap(other.d); }
+    void swap(QRegularExpressionMatch &other) noexcept { d.swap(other.d); }
 
     QRegularExpression regularExpression() const;
     QRegularExpression::MatchType matchType() const;
@@ -257,11 +251,9 @@ public:
     ~QRegularExpressionMatchIterator();
     QRegularExpressionMatchIterator(const QRegularExpressionMatchIterator &iterator);
     QRegularExpressionMatchIterator &operator=(const QRegularExpressionMatchIterator &iterator);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QRegularExpressionMatchIterator &operator=(QRegularExpressionMatchIterator &&iterator) Q_DECL_NOTHROW
+    QRegularExpressionMatchIterator &operator=(QRegularExpressionMatchIterator &&iterator) noexcept
     { d.swap(iterator.d); return *this; }
-#endif
-    void swap(QRegularExpressionMatchIterator &other) Q_DECL_NOTHROW { d.swap(other.d); }
+    void swap(QRegularExpressionMatchIterator &other) noexcept { d.swap(other.d); }
 
     bool isValid() const;
 
diff --git a/src/corelib/tools/qringbuffer.cpp b/src/corelib/tools/qringbuffer.cpp
index 59650ed2f7..67cce57d01 100644
--- a/src/corelib/tools/qringbuffer.cpp
+++ b/src/corelib/tools/qringbuffer.cpp
@@ -59,7 +59,7 @@ void QRingChunk::detach()
     const int chunkSize = size();
     QByteArray x(chunkSize, Qt::Uninitialized);
     ::memcpy(x.data(), chunk.constData() + headOffset, chunkSize);
-    chunk = qMove(x);
+    chunk = std::move(x);
     headOffset = 0;
     tailOffset = chunkSize;
 }
diff --git a/src/corelib/tools/qringbuffer_p.h b/src/corelib/tools/qringbuffer_p.h
index 76ab4a5b62..838cb31697 100644
--- a/src/corelib/tools/qringbuffer_p.h
+++ b/src/corelib/tools/qringbuffer_p.h
@@ -65,11 +65,11 @@ class QRingChunk
 {
 public:
     // initialization and cleanup
-    inline QRingChunk() Q_DECL_NOTHROW :
+    inline QRingChunk() noexcept :
         headOffset(0), tailOffset(0)
     {
     }
-    inline QRingChunk(const QRingChunk &other) Q_DECL_NOTHROW :
+    inline QRingChunk(const QRingChunk &other) noexcept :
         chunk(other.chunk), headOffset(other.headOffset), tailOffset(other.tailOffset)
     {
     }
@@ -77,30 +77,30 @@ public:
         chunk(alloc, Qt::Uninitialized), headOffset(0), tailOffset(0)
     {
     }
-    explicit inline QRingChunk(const QByteArray &qba) Q_DECL_NOTHROW :
+    explicit inline QRingChunk(const QByteArray &qba) noexcept :
         chunk(qba), headOffset(0), tailOffset(qba.size())
     {
     }
 
-    inline QRingChunk &operator=(const QRingChunk &other) Q_DECL_NOTHROW
+    inline QRingChunk &operator=(const QRingChunk &other) noexcept
     {
         chunk = other.chunk;
         headOffset = other.headOffset;
         tailOffset = other.tailOffset;
         return *this;
     }
-    inline QRingChunk(QRingChunk &&other) Q_DECL_NOTHROW :
+    inline QRingChunk(QRingChunk &&other) noexcept :
         chunk(other.chunk), headOffset(other.headOffset), tailOffset(other.tailOffset)
     {
         other.headOffset = other.tailOffset = 0;
     }
-    inline QRingChunk &operator=(QRingChunk &&other) Q_DECL_NOTHROW
+    inline QRingChunk &operator=(QRingChunk &&other) noexcept
     {
         swap(other);
         return *this;
     }
 
-    inline void swap(QRingChunk &other) Q_DECL_NOTHROW
+    inline void swap(QRingChunk &other) noexcept
     {
         chunk.swap(other.chunk);
         qSwap(headOffset, other.headOffset);
diff --git a/src/corelib/tools/qscopedpointer.h b/src/corelib/tools/qscopedpointer.h
index 2a4083466b..af0c0ed336 100644
--- a/src/corelib/tools/qscopedpointer.h
+++ b/src/corelib/tools/qscopedpointer.h
@@ -97,7 +97,7 @@ class QScopedPointer
 {
     typedef T *QScopedPointer:: *RestrictedBool;
 public:
-    explicit QScopedPointer(T *p = nullptr) Q_DECL_NOTHROW : d(p)
+    explicit QScopedPointer(T *p = nullptr) noexcept : d(p)
     {
     }
 
@@ -113,12 +113,12 @@ public:
         return *d;
     }
 
-    T *operator->() const Q_DECL_NOTHROW
+    T *operator->() const noexcept
     {
         return d;
     }
 
-    bool operator!() const Q_DECL_NOTHROW
+    bool operator!() const noexcept
     {
         return !d;
     }
@@ -129,28 +129,28 @@ public:
         return isNull() ? nullptr : &QScopedPointer::d;
     }
 #else
-    operator RestrictedBool() const Q_DECL_NOTHROW
+    operator RestrictedBool() const noexcept
     {
         return isNull() ? nullptr : &QScopedPointer::d;
     }
 #endif
 
-    T *data() const Q_DECL_NOTHROW
+    T *data() const noexcept
     {
         return d;
     }
 
-    T *get() const Q_DECL_NOTHROW
+    T *get() const noexcept
     {
         return d;
     }
 
-    bool isNull() const Q_DECL_NOTHROW
+    bool isNull() const noexcept
     {
         return !d;
     }
 
-    void reset(T *other = nullptr) Q_DECL_NOEXCEPT_EXPR(noexcept(Cleanup::cleanup(std::declval<T *>())))
+    void reset(T *other = nullptr) noexcept(noexcept(Cleanup::cleanup(std::declval<T *>())))
     {
         if (d == other)
             return;
@@ -159,14 +159,14 @@ public:
         Cleanup::cleanup(oldD);
     }
 
-    T *take() Q_DECL_NOTHROW
+    T *take() noexcept
     {
         T *oldD = d;
         d = nullptr;
         return oldD;
     }
 
-    void swap(QScopedPointer<T, Cleanup> &other) Q_DECL_NOTHROW
+    void swap(QScopedPointer<T, Cleanup> &other) noexcept
     {
         qSwap(d, other.d);
     }
@@ -181,43 +181,43 @@ private:
 };
 
 template <class T, class Cleanup>
-inline bool operator==(const QScopedPointer<T, Cleanup> &lhs, const QScopedPointer<T, Cleanup> &rhs) Q_DECL_NOTHROW
+inline bool operator==(const QScopedPointer<T, Cleanup> &lhs, const QScopedPointer<T, Cleanup> &rhs) noexcept
 {
     return lhs.data() == rhs.data();
 }
 
 template <class T, class Cleanup>
-inline bool operator!=(const QScopedPointer<T, Cleanup> &lhs, const QScopedPointer<T, Cleanup> &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QScopedPointer<T, Cleanup> &lhs, const QScopedPointer<T, Cleanup> &rhs) noexcept
 {
     return lhs.data() != rhs.data();
 }
 
 template <class T, class Cleanup>
-inline bool operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) noexcept
 {
     return lhs.isNull();
 }
 
 template <class T, class Cleanup>
-inline bool operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) Q_DECL_NOTHROW
+inline bool operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) noexcept
 {
     return rhs.isNull();
 }
 
 template <class T, class Cleanup>
-inline bool operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) noexcept
 {
     return !lhs.isNull();
 }
 
 template <class T, class Cleanup>
-inline bool operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) Q_DECL_NOTHROW
+inline bool operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) noexcept
 {
     return !rhs.isNull();
 }
 
 template <class T, class Cleanup>
-inline void swap(QScopedPointer<T, Cleanup> &p1, QScopedPointer<T, Cleanup> &p2) Q_DECL_NOTHROW
+inline void swap(QScopedPointer<T, Cleanup> &p1, QScopedPointer<T, Cleanup> &p2) noexcept
 { p1.swap(p2); }
 
 template <typename T, typename Cleanup = QScopedPointerArrayDeleter<T> >
@@ -244,7 +244,7 @@ public:
         return this->d[i];
     }
 
-    void swap(QScopedArrayPointer &other) Q_DECL_NOTHROW // prevent QScopedPointer <->QScopedArrayPointer swaps
+    void swap(QScopedArrayPointer &other) noexcept // prevent QScopedPointer <->QScopedArrayPointer swaps
     { QScopedPointer<T, Cleanup>::swap(other); }
 
 private:
@@ -263,7 +263,7 @@ private:
 };
 
 template <typename T, typename Cleanup>
-inline void swap(QScopedArrayPointer<T, Cleanup> &lhs, QScopedArrayPointer<T, Cleanup> &rhs) Q_DECL_NOTHROW
+inline void swap(QScopedArrayPointer<T, Cleanup> &lhs, QScopedArrayPointer<T, Cleanup> &rhs) noexcept
 { lhs.swap(rhs); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qscopedvaluerollback.h b/src/corelib/tools/qscopedvaluerollback.h
index 5f76269388..f904b8dfcb 100644
--- a/src/corelib/tools/qscopedvaluerollback.h
+++ b/src/corelib/tools/qscopedvaluerollback.h
@@ -48,20 +48,20 @@ template <typename T>
 class QScopedValueRollback
 {
 public:
-    explicit QScopedValueRollback(T &var) :
-        varRef(var), oldValue(var)
+    explicit QScopedValueRollback(T &var)
+        : varRef(var), oldValue(var)
     {
     }
 
-    explicit QScopedValueRollback(T &var, T value) :
-        varRef(var), oldValue(var)
+    explicit QScopedValueRollback(T &var, T value)
+        : varRef(var), oldValue(std::move(var))
     {
-        varRef = qMove(value);
+        varRef = std::move(value);
     }
 
     ~QScopedValueRollback()
     {
-        varRef = qMove(oldValue);
+        varRef = std::move(oldValue);
     }
 
     void commit()
@@ -70,7 +70,7 @@ public:
     }
 
 private:
-    T& varRef;
+    T &varRef;
     T oldValue;
 
     Q_DISABLE_COPY(QScopedValueRollback)
diff --git a/src/corelib/tools/qscopeguard.h b/src/corelib/tools/qscopeguard.h
index 31100fcabb..41d0a6af68 100644
--- a/src/corelib/tools/qscopeguard.h
+++ b/src/corelib/tools/qscopeguard.h
@@ -50,10 +50,15 @@ template <typename F> class QScopeGuard;
 template <typename F> QScopeGuard<F> qScopeGuard(F f);
 
 template <typename F>
-class QScopeGuard
+class
+#ifndef __INTEL_COMPILER
+// error #2621: attribute "__warn_unused_result__" does not apply here
+Q_REQUIRED_RESULT
+#endif
+QScopeGuard
 {
 public:
-    QScopeGuard(QScopeGuard &&other) Q_DECL_NOEXCEPT
+    QScopeGuard(QScopeGuard &&other) noexcept
         : m_func(std::move(other.m_func))
         , m_invoke(other.m_invoke)
     {
@@ -66,13 +71,13 @@ public:
             m_func();
     }
 
-    void dismiss() Q_DECL_NOEXCEPT
+    void dismiss() noexcept
     {
         m_invoke = false;
     }
 
 private:
-    explicit QScopeGuard(F f) Q_DECL_NOEXCEPT
+    explicit QScopeGuard(F f) noexcept
         : m_func(std::move(f))
     {
     }
@@ -86,6 +91,10 @@ private:
 
 
 template <typename F>
+#ifndef __INTEL_COMPILER
+// Causes "error #3058: GNU attributes on a template redeclaration have no effect"
+Q_REQUIRED_RESULT
+#endif
 QScopeGuard<F> qScopeGuard(F f)
 {
     return QScopeGuard<F>(std::move(f));
diff --git a/src/corelib/tools/qset.h b/src/corelib/tools/qset.h
index 6640c8486d..83e574bf1c 100644
--- a/src/corelib/tools/qset.h
+++ b/src/corelib/tools/qset.h
@@ -41,10 +41,9 @@
 #define QSET_H
 
 #include <QtCore/qhash.h>
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-#include <initializer_list>
-#endif
+#include <QtCore/qcontainertools_impl.h>
 
+#include <initializer_list>
 #include <iterator>
 
 QT_BEGIN_NAMESPACE
@@ -56,19 +55,21 @@ class QSet
     typedef QHash<T, QHashDummyValue> Hash;
 
 public:
-    inline QSet() Q_DECL_NOTHROW {}
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    inline QSet() noexcept {}
     inline QSet(std::initializer_list<T> list)
+        : QSet(list.begin(), list.end()) {}
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    inline QSet(InputIterator first, InputIterator last)
     {
-        reserve(int(list.size()));
-        for (typename std::initializer_list<T>::const_iterator it = list.begin(); it != list.end(); ++it)
-            insert(*it);
+        QtPrivate::reserveIfForwardIterator(this, first, last);
+        for (; first != last; ++first)
+            insert(*first);
     }
-#endif
+
     // compiler-generated copy/move ctor/assignment operators are fine!
     // compiler-generated destructor is fine!
 
-    inline void swap(QSet<T> &other) Q_DECL_NOTHROW { q_hash.swap(other.q_hash); }
+    inline void swap(QSet<T> &other) noexcept { q_hash.swap(other.q_hash); }
 
     inline bool operator==(const QSet<T> &other) const
         { return q_hash == other.q_hash; }
@@ -176,20 +177,20 @@ public:
     typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 
     inline iterator begin() { return q_hash.begin(); }
-    inline const_iterator begin() const Q_DECL_NOTHROW { return q_hash.begin(); }
-    inline const_iterator cbegin() const Q_DECL_NOTHROW { return q_hash.begin(); }
-    inline const_iterator constBegin() const Q_DECL_NOTHROW { return q_hash.constBegin(); }
+    inline const_iterator begin() const noexcept { return q_hash.begin(); }
+    inline const_iterator cbegin() const noexcept { return q_hash.begin(); }
+    inline const_iterator constBegin() const noexcept { return q_hash.constBegin(); }
     inline iterator end() { return q_hash.end(); }
-    inline const_iterator end() const Q_DECL_NOTHROW { return q_hash.end(); }
-    inline const_iterator cend() const Q_DECL_NOTHROW { return q_hash.end(); }
-    inline const_iterator constEnd() const Q_DECL_NOTHROW { return q_hash.constEnd(); }
+    inline const_iterator end() const noexcept { return q_hash.end(); }
+    inline const_iterator cend() const noexcept { return q_hash.end(); }
+    inline const_iterator constEnd() const noexcept { return q_hash.constEnd(); }
 
     reverse_iterator rbegin() { return reverse_iterator(end()); }
     reverse_iterator rend() { return reverse_iterator(begin()); }
-    const_reverse_iterator rbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
 
     iterator erase(iterator i)
     { return erase(m2c(i)); }
@@ -244,22 +245,25 @@ public:
     inline QSet<T> operator-(const QSet<T> &other) const
         { QSet<T> result = *this; result -= other; return result; }
 
-    QList<T> toList() const;
-    inline QList<T> values() const { return toList(); }
-
+    QList<T> values() const;
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+    Q_DECL_DEPRECATED_X("Use values() instead.")
+    QList<T> toList() const { return values(); }
+    Q_DECL_DEPRECATED_X("Use QSet<T>(list.begin(), list.end()) instead.")
     static QSet<T> fromList(const QList<T> &list);
+#endif
 
 private:
     Hash q_hash;
 
-    static const_iterator m2c(iterator it) Q_DECL_NOTHROW
+    static const_iterator m2c(iterator it) noexcept
     { return const_iterator(typename Hash::const_iterator(it.i.i)); }
 
     bool isValidIterator(const iterator &i) const
     {
         return q_hash.isValidIterator(reinterpret_cast<const typename Hash::iterator&>(i));
     }
-    bool isValidIterator(const const_iterator &i) const Q_DECL_NOTHROW
+    bool isValidIterator(const const_iterator &i) const noexcept
     {
         return q_hash.isValidIterator(reinterpret_cast<const typename Hash::const_iterator&>(i));
     }
@@ -267,7 +271,7 @@ private:
 
 template <typename T>
 uint qHash(const QSet<T> &key, uint seed = 0)
-Q_DECL_NOEXCEPT_EXPR(noexcept(qHashRangeCommutative(key.begin(), key.end(), seed)))
+noexcept(noexcept(qHashRangeCommutative(key.begin(), key.end(), seed)))
 {
     return qHashRangeCommutative(key.begin(), key.end(), seed);
 }
@@ -367,7 +371,7 @@ Q_INLINE_TEMPLATE bool QSet<T>::contains(const QSet<T> &other) const
 }
 
 template <typename T>
-Q_OUTOFLINE_TEMPLATE QList<T> QSet<T>::toList() const
+Q_OUTOFLINE_TEMPLATE QList<T> QSet<T>::values() const
 {
     QList<T> result;
     result.reserve(size());
@@ -379,6 +383,7 @@ Q_OUTOFLINE_TEMPLATE QList<T> QSet<T>::toList() const
     return result;
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
 template <typename T>
 Q_OUTOFLINE_TEMPLATE QSet<T> QList<T>::toSet() const
 {
@@ -400,6 +405,7 @@ QList<T> QList<T>::fromSet(const QSet<T> &set)
 {
     return set.toList();
 }
+#endif
 
 Q_DECLARE_SEQUENTIAL_ITERATOR(Set)
 
diff --git a/src/corelib/tools/qset.qdoc b/src/corelib/tools/qset.qdoc
index 48863f2399..2e7a5a29ce 100644
--- a/src/corelib/tools/qset.qdoc
+++ b/src/corelib/tools/qset.qdoc
@@ -113,6 +113,17 @@
     compiled in C++11 mode.
 */
 
+/*! \fn template <class T> template<typename InputIterator> QSet<T>::QSet(InputIterator first, InputIterator last)
+    \since 5.14
+
+    Constructs a set with the contents in the iterator range [\a first, \a last).
+
+    The value type of \c InputIterator must be convertible to \c T.
+
+    \note If the range [\a first, \a last) contains duplicate elements,
+    the first one is retained.
+*/
+
 /*!
     \fn template <class T> void QSet<T>::swap(QSet<T> &other)
 
diff --git a/src/corelib/tools/qshareddata.h b/src/corelib/tools/qshareddata.h
index 6930cb96a5..c29a509209 100644
--- a/src/corelib/tools/qshareddata.h
+++ b/src/corelib/tools/qshareddata.h
@@ -60,9 +60,8 @@ public:
     inline QSharedData() : ref(0) { }
     inline QSharedData(const QSharedData &) : ref(0) { }
 
-private:
     // using the assignment operator would lead to corruption in the ref-counting
-    QSharedData &operator=(const QSharedData &);
+    QSharedData &operator=(const QSharedData &) = delete;
 };
 
 template <class T> class QSharedDataPointer
@@ -88,7 +87,7 @@ public:
     inline QSharedDataPointer() { d = nullptr; }
     inline ~QSharedDataPointer() { if (d && !d->ref.deref()) delete d; }
 
-    explicit QSharedDataPointer(T *data) Q_DECL_NOTHROW;
+    explicit QSharedDataPointer(T *data) noexcept;
     inline QSharedDataPointer(const QSharedDataPointer<T> &o) : d(o.d) { if (d) d->ref.ref(); }
     inline QSharedDataPointer<T> & operator=(const QSharedDataPointer<T> &o) {
         if (o.d != d) {
@@ -112,19 +111,17 @@ public:
         }
         return *this;
     }
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSharedDataPointer(QSharedDataPointer &&o) Q_DECL_NOTHROW : d(o.d) { o.d = nullptr; }
-    inline QSharedDataPointer<T> &operator=(QSharedDataPointer<T> &&other) Q_DECL_NOTHROW
+    QSharedDataPointer(QSharedDataPointer &&o) noexcept : d(o.d) { o.d = nullptr; }
+    inline QSharedDataPointer<T> &operator=(QSharedDataPointer<T> &&other) noexcept
     {
         QSharedDataPointer moved(std::move(other));
         swap(moved);
         return *this;
     }
-#endif
 
     inline bool operator!() const { return !d; }
 
-    inline void swap(QSharedDataPointer &other) Q_DECL_NOTHROW
+    inline void swap(QSharedDataPointer &other) noexcept
     { qSwap(d, other.d); }
 
 protected:
@@ -181,7 +178,7 @@ public:
     inline QExplicitlySharedDataPointer() { d = nullptr; }
     inline ~QExplicitlySharedDataPointer() { if (d && !d->ref.deref()) delete d; }
 
-    explicit QExplicitlySharedDataPointer(T *data) Q_DECL_NOTHROW;
+    explicit QExplicitlySharedDataPointer(T *data) noexcept;
     inline QExplicitlySharedDataPointer(const QExplicitlySharedDataPointer<T> &o) : d(o.d) { if (d) d->ref.ref(); }
 
     template<class X>
@@ -218,19 +215,17 @@ public:
         }
         return *this;
     }
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QExplicitlySharedDataPointer(QExplicitlySharedDataPointer &&o) Q_DECL_NOTHROW : d(o.d) { o.d = nullptr; }
-    inline QExplicitlySharedDataPointer<T> &operator=(QExplicitlySharedDataPointer<T> &&other) Q_DECL_NOTHROW
+    inline QExplicitlySharedDataPointer(QExplicitlySharedDataPointer &&o) noexcept : d(o.d) { o.d = nullptr; }
+    inline QExplicitlySharedDataPointer<T> &operator=(QExplicitlySharedDataPointer<T> &&other) noexcept
     {
         QExplicitlySharedDataPointer moved(std::move(other));
         swap(moved);
         return *this;
     }
-#endif
 
     inline bool operator!() const { return !d; }
 
-    inline void swap(QExplicitlySharedDataPointer &other) Q_DECL_NOTHROW
+    inline void swap(QExplicitlySharedDataPointer &other) noexcept
     { qSwap(d, other.d); }
 
 protected:
@@ -243,7 +238,7 @@ private:
 };
 
 template <class T>
-Q_INLINE_TEMPLATE QSharedDataPointer<T>::QSharedDataPointer(T *adata) Q_DECL_NOTHROW
+Q_INLINE_TEMPLATE QSharedDataPointer<T>::QSharedDataPointer(T *adata) noexcept
     : d(adata)
 { if (d) d->ref.ref(); }
 
@@ -280,7 +275,7 @@ Q_OUTOFLINE_TEMPLATE void QExplicitlySharedDataPointer<T>::detach_helper()
 }
 
 template <class T>
-Q_INLINE_TEMPLATE QExplicitlySharedDataPointer<T>::QExplicitlySharedDataPointer(T *adata) Q_DECL_NOTHROW
+Q_INLINE_TEMPLATE QExplicitlySharedDataPointer<T>::QExplicitlySharedDataPointer(T *adata) noexcept
     : d(adata)
 { if (d) d->ref.ref(); }
 
@@ -317,12 +312,12 @@ namespace std {
 QT_BEGIN_NAMESPACE
 
 template <class T>
-Q_INLINE_TEMPLATE uint qHash(const QSharedDataPointer<T> &ptr, uint seed = 0) Q_DECL_NOTHROW
+Q_INLINE_TEMPLATE uint qHash(const QSharedDataPointer<T> &ptr, uint seed = 0) noexcept
 {
     return qHash(ptr.data(), seed);
 }
 template <class T>
-Q_INLINE_TEMPLATE uint qHash(const QExplicitlySharedDataPointer<T> &ptr, uint seed = 0) Q_DECL_NOTHROW
+Q_INLINE_TEMPLATE uint qHash(const QExplicitlySharedDataPointer<T> &ptr, uint seed = 0) noexcept
 {
     return qHash(ptr.data(), seed);
 }
diff --git a/src/corelib/tools/qsharedpointer.cpp b/src/corelib/tools/qsharedpointer.cpp
index 8c0f8379fb..568d65df6b 100644
--- a/src/corelib/tools/qsharedpointer.cpp
+++ b/src/corelib/tools/qsharedpointer.cpp
@@ -1266,6 +1266,57 @@
 */
 
 /*!
+    \fn template <class X, class T> std::shared_ptr<X> qSharedPointerObjectCast(const std::shared_ptr<T> &src)
+    \relates QSharedPointer
+    \since 5.14
+
+    Returns a shared pointer to the pointer held by \a src, using a
+    \l qobject_cast() to type \tt X to obtain an internal pointer of the
+    appropriate type. If the \tt qobject_cast fails, the object
+    returned will be null.
+
+    Note that \tt X must have the same cv-qualifiers (\tt const and
+    \tt volatile) that \tt T has, or the code will fail to
+    compile. Use const_pointer_cast to cast away the constness.
+*/
+
+/*!
+    \fn template <class X, class T> std::shared_ptr<X> qobject_pointer_cast(const std::shared_ptr<T> &src)
+    \relates QSharedPointer
+    \since 5.14
+
+    Same as qSharedPointerObjectCast(). This function is provided for STL
+    compatibility.
+*/
+
+/*!
+    \fn template <class X, class T> std::shared_ptr<X> qSharedPointerObjectCast(std::shared_ptr<T> &&src)
+    \relates QSharedPointer
+    \since 5.14
+
+    Returns a shared pointer to the pointer held by \a src, using a
+    \l qobject_cast() to type \tt X to obtain an internal pointer of the
+    appropriate type.
+
+    If the \tt qobject_cast succeeds, the function will return a valid shared
+    pointer, and \a src is reset to null. If the \tt qobject_cast fails, the
+    object returned will be null, and \a src will not be modified.
+
+    Note that \tt X must have the same cv-qualifiers (\tt const and
+    \tt volatile) that \tt T has, or the code will fail to
+    compile. Use const_pointer_cast to cast away the constness.
+*/
+
+/*!
+    \fn template <class X, class T> std::shared_ptr<X> qobject_pointer_cast(std::shared_ptr<T> &&src)
+    \relates QSharedPointer
+    \since 5.14
+
+    Same as qSharedPointerObjectCast(). This function is provided for STL
+    compatibility.
+*/
+
+/*!
     \fn template <class X> template <class T> QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src)
     \relates QSharedPointer
     \relates QWeakPointer
diff --git a/src/corelib/tools/qsharedpointer.h b/src/corelib/tools/qsharedpointer.h
index a2c5f990fc..5d47369687 100644
--- a/src/corelib/tools/qsharedpointer.h
+++ b/src/corelib/tools/qsharedpointer.h
@@ -48,6 +48,8 @@
 # include <QtCore/qsharedpointer_impl.h>
 #else
 
+#include <memory> // for std::shared_ptr
+
 QT_BEGIN_NAMESPACE
 
 
@@ -167,6 +169,10 @@ template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QSha
 template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QWeakPointer<T> &src);
 template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &src);
 template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src);
+template <typename X, class T> std::shared_ptr<X> qobject_pointer_cast(const std::shared_ptr<T> &src);
+template <typename X, class T> std::shared_ptr<X> qobject_pointer_cast(std::shared_ptr<T> &&src);
+template <typename X, class T> std::shared_ptr<X> qSharedPointerObjectCast(const std::shared_ptr<T> &src);
+template <typename X, class T> std::shared_ptr<X> qSharedPointerObjectCast(std::shared_ptr<T> &&src);
 
 template <class X, class T> QWeakPointer<X> qWeakPointerCast(const QWeakPointer<T> &src);
 
diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index bccf8c5740..80543f1983 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -67,6 +67,8 @@ QT_END_NAMESPACE
 #endif
 #include <QtCore/qhashfunctions.h>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 
@@ -233,8 +235,8 @@ namespace QtSharedPointer {
         }
     private:
         // prevent construction
-        ExternalRefCountWithCustomDeleter() Q_DECL_EQ_DELETE;
-        ~ExternalRefCountWithCustomDeleter() Q_DECL_EQ_DELETE;
+        ExternalRefCountWithCustomDeleter() = delete;
+        ~ExternalRefCountWithCustomDeleter() = delete;
         Q_DISABLE_COPY(ExternalRefCountWithCustomDeleter)
     };
 
@@ -278,8 +280,8 @@ namespace QtSharedPointer {
 
     private:
         // prevent construction
-        ExternalRefCountWithContiguousData() Q_DECL_EQ_DELETE;
-        ~ExternalRefCountWithContiguousData() Q_DECL_EQ_DELETE;
+        ExternalRefCountWithContiguousData() = delete;
+        ~ExternalRefCountWithContiguousData() = delete;
         Q_DISABLE_COPY(ExternalRefCountWithContiguousData)
     };
 
@@ -303,18 +305,18 @@ public:
     typedef const value_type &const_reference;
     typedef qptrdiff difference_type;
 
-    T *data() const Q_DECL_NOTHROW { return value; }
-    T *get() const Q_DECL_NOTHROW { return value; }
-    bool isNull() const Q_DECL_NOTHROW { return !data(); }
-    operator RestrictedBool() const Q_DECL_NOTHROW { return isNull() ? nullptr : &QSharedPointer::value; }
-    bool operator !() const Q_DECL_NOTHROW { return isNull(); }
+    T *data() const noexcept { return value; }
+    T *get() const noexcept { return value; }
+    bool isNull() const noexcept { return !data(); }
+    operator RestrictedBool() const noexcept { return isNull() ? nullptr : &QSharedPointer::value; }
+    bool operator !() const noexcept { return isNull(); }
     T &operator*() const { return *data(); }
-    T *operator->() const Q_DECL_NOTHROW { return data(); }
+    T *operator->() const noexcept { return data(); }
 
-    Q_DECL_CONSTEXPR QSharedPointer() Q_DECL_NOTHROW : value(nullptr), d(nullptr) { }
+    Q_DECL_CONSTEXPR QSharedPointer() noexcept : value(nullptr), d(nullptr) { }
     ~QSharedPointer() { deref(); }
 
-    Q_DECL_CONSTEXPR QSharedPointer(std::nullptr_t) Q_DECL_NOTHROW : value(nullptr), d(nullptr) { }
+    Q_DECL_CONSTEXPR QSharedPointer(std::nullptr_t) noexcept : value(nullptr), d(nullptr) { }
 
     template <class X>
     inline explicit QSharedPointer(X *ptr) : value(ptr) // noexcept
@@ -327,22 +329,21 @@ public:
     template <typename Deleter>
     QSharedPointer(std::nullptr_t, Deleter) : value(nullptr), d(nullptr) { }
 
-    QSharedPointer(const QSharedPointer &other) Q_DECL_NOTHROW : value(other.value), d(other.d)
+    QSharedPointer(const QSharedPointer &other) noexcept : value(other.value), d(other.d)
     { if (d) ref(); }
-    QSharedPointer &operator=(const QSharedPointer &other) Q_DECL_NOTHROW
+    QSharedPointer &operator=(const QSharedPointer &other) noexcept
     {
         QSharedPointer copy(other);
         swap(copy);
         return *this;
     }
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSharedPointer(QSharedPointer &&other) Q_DECL_NOTHROW
+    QSharedPointer(QSharedPointer &&other) noexcept
         : value(other.value), d(other.d)
     {
         other.d = nullptr;
         other.value = nullptr;
     }
-    QSharedPointer &operator=(QSharedPointer &&other) Q_DECL_NOTHROW
+    QSharedPointer &operator=(QSharedPointer &&other) noexcept
     {
         QSharedPointer moved(std::move(other));
         swap(moved);
@@ -350,7 +351,7 @@ public:
     }
 
     template <class X>
-    QSharedPointer(QSharedPointer<X> &&other) Q_DECL_NOTHROW
+    QSharedPointer(QSharedPointer<X> &&other) noexcept
         : value(other.value), d(other.d)
     {
         other.d = nullptr;
@@ -358,17 +359,15 @@ public:
     }
 
     template <class X>
-    QSharedPointer &operator=(QSharedPointer<X> &&other) Q_DECL_NOTHROW
+    QSharedPointer &operator=(QSharedPointer<X> &&other) noexcept
     {
         QSharedPointer moved(std::move(other));
         swap(moved);
         return *this;
     }
 
-#endif
-
     template <class X>
-    QSharedPointer(const QSharedPointer<X> &other) Q_DECL_NOTHROW : value(other.value), d(other.d)
+    QSharedPointer(const QSharedPointer<X> &other) noexcept : value(other.value), d(other.d)
     { if (d) ref(); }
 
     template <class X>
@@ -387,7 +386,7 @@ public:
     inline QSharedPointer<T> &operator=(const QWeakPointer<X> &other)
     { internalSet(other.d, other.value); return *this; }
 
-    inline void swap(QSharedPointer &other)
+    inline void swap(QSharedPointer &other) noexcept
     { this->internalSwap(other); }
 
     inline void reset() { clear(); }
@@ -456,9 +455,9 @@ public:
 private:
     explicit QSharedPointer(Qt::Initialization) {}
 
-    void deref() Q_DECL_NOTHROW
+    void deref() noexcept
     { deref(d); }
-    static void deref(Data *dd) Q_DECL_NOTHROW
+    static void deref(Data *dd) noexcept
     {
         if (!dd) return;
         if (!dd->strongref.deref()) {
@@ -499,7 +498,7 @@ private:
         enableSharedFromThis(ptr);
     }
 
-    void internalSwap(QSharedPointer &other) Q_DECL_NOTHROW
+    void internalSwap(QSharedPointer &other) noexcept
     {
         qSwap(d, other.d);
         qSwap(this->value, other.value);
@@ -512,7 +511,7 @@ public:
     template <class X> friend class QWeakPointer;
     template <class X, class Y> friend QSharedPointer<X> QtSharedPointer::copyAndSetPointer(X * ptr, const QSharedPointer<Y> &src);
 #endif
-    void ref() const Q_DECL_NOTHROW { d->weakref.ref(); d->strongref.ref(); }
+    void ref() const noexcept { d->weakref.ref(); d->strongref.ref(); }
 
     inline void internalSet(Data *o, T *actual)
     {
@@ -563,12 +562,12 @@ public:
     typedef const value_type &const_reference;
     typedef qptrdiff difference_type;
 
-    bool isNull() const Q_DECL_NOTHROW { return d == nullptr || d->strongref.load() == 0 || value == nullptr; }
-    operator RestrictedBool() const Q_DECL_NOTHROW { return isNull() ? nullptr : &QWeakPointer::value; }
-    bool operator !() const Q_DECL_NOTHROW { return isNull(); }
-    T *data() const Q_DECL_NOTHROW { return d == nullptr || d->strongref.load() == 0 ? nullptr : value; }
+    bool isNull() const noexcept { return d == nullptr || d->strongref.load() == 0 || value == nullptr; }
+    operator RestrictedBool() const noexcept { return isNull() ? nullptr : &QWeakPointer::value; }
+    bool operator !() const noexcept { return isNull(); }
+    T *data() const noexcept { return d == nullptr || d->strongref.load() == 0 ? nullptr : value; }
 
-    inline QWeakPointer() Q_DECL_NOTHROW : d(nullptr), value(nullptr) { }
+    inline QWeakPointer() noexcept : d(nullptr), value(nullptr) { }
     inline ~QWeakPointer() { if (d && !d->weakref.deref()) delete d; }
 
 #ifndef QT_NO_QOBJECT
@@ -586,26 +585,24 @@ public:
     { return *this = QWeakPointer(ptr); }
 #endif
 
-    QWeakPointer(const QWeakPointer &other) Q_DECL_NOTHROW : d(other.d), value(other.value)
+    QWeakPointer(const QWeakPointer &other) noexcept : d(other.d), value(other.value)
     { if (d) d->weakref.ref(); }
-#ifdef Q_COMPILER_RVALUE_REFS
-    QWeakPointer(QWeakPointer &&other) Q_DECL_NOTHROW
+    QWeakPointer(QWeakPointer &&other) noexcept
         : d(other.d), value(other.value)
     {
         other.d = nullptr;
         other.value = nullptr;
     }
-    QWeakPointer &operator=(QWeakPointer &&other) Q_DECL_NOTHROW
+    QWeakPointer &operator=(QWeakPointer &&other) noexcept
     { QWeakPointer moved(std::move(other)); swap(moved); return *this; }
-#endif
-    QWeakPointer &operator=(const QWeakPointer &other) Q_DECL_NOTHROW
+    QWeakPointer &operator=(const QWeakPointer &other) noexcept
     {
         QWeakPointer copy(other);
         swap(copy);
         return *this;
     }
 
-    void swap(QWeakPointer &other) Q_DECL_NOTHROW
+    void swap(QWeakPointer &other) noexcept
     {
         qSwap(this->d, other.d);
         qSwap(this->value, other.value);
@@ -633,11 +630,11 @@ public:
     }
 
     template <class X>
-    bool operator==(const QWeakPointer<X> &o) const Q_DECL_NOTHROW
+    bool operator==(const QWeakPointer<X> &o) const noexcept
     { return d == o.d && value == static_cast<const T *>(o.value); }
 
     template <class X>
-    bool operator!=(const QWeakPointer<X> &o) const Q_DECL_NOTHROW
+    bool operator!=(const QWeakPointer<X> &o) const noexcept
     { return !(*this == o); }
 
     template <class X>
@@ -653,11 +650,11 @@ public:
     }
 
     template <class X>
-    bool operator==(const QSharedPointer<X> &o) const Q_DECL_NOTHROW
+    bool operator==(const QSharedPointer<X> &o) const noexcept
     { return d == o.d; }
 
     template <class X>
-    bool operator!=(const QSharedPointer<X> &o) const Q_DECL_NOTHROW
+    bool operator!=(const QSharedPointer<X> &o) const noexcept
     { return !(*this == o); }
 
     inline void clear() { *this = QWeakPointer(); }
@@ -708,11 +705,7 @@ template <class T>
 class QEnableSharedFromThis
 {
 protected:
-#ifdef Q_COMPILER_DEFAULT_MEMBERS
     QEnableSharedFromThis() = default;
-#else
-    Q_DECL_CONSTEXPR QEnableSharedFromThis() {}
-#endif
     QEnableSharedFromThis(const QEnableSharedFromThis &) {}
     QEnableSharedFromThis &operator=(const QEnableSharedFromThis &) { return *this; }
 
@@ -739,92 +732,92 @@ public:
 // operator== and operator!=
 //
 template <class T, class X>
-bool operator==(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator==(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2) noexcept
 {
     return ptr1.data() == ptr2.data();
 }
 template <class T, class X>
-bool operator!=(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator!=(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2) noexcept
 {
     return ptr1.data() != ptr2.data();
 }
 
 template <class T, class X>
-bool operator==(const QSharedPointer<T> &ptr1, const X *ptr2) Q_DECL_NOTHROW
+bool operator==(const QSharedPointer<T> &ptr1, const X *ptr2) noexcept
 {
     return ptr1.data() == ptr2;
 }
 template <class T, class X>
-bool operator==(const T *ptr1, const QSharedPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator==(const T *ptr1, const QSharedPointer<X> &ptr2) noexcept
 {
     return ptr1 == ptr2.data();
 }
 template <class T, class X>
-bool operator!=(const QSharedPointer<T> &ptr1, const X *ptr2) Q_DECL_NOTHROW
+bool operator!=(const QSharedPointer<T> &ptr1, const X *ptr2) noexcept
 {
     return !(ptr1 == ptr2);
 }
 template <class T, class X>
-bool operator!=(const T *ptr1, const QSharedPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator!=(const T *ptr1, const QSharedPointer<X> &ptr2) noexcept
 {
     return !(ptr2 == ptr1);
 }
 
 template <class T, class X>
-bool operator==(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator==(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2) noexcept
 {
     return ptr2 == ptr1;
 }
 template <class T, class X>
-bool operator!=(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2) Q_DECL_NOTHROW
+bool operator!=(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2) noexcept
 {
     return ptr2 != ptr1;
 }
 
 template<class T>
-inline bool operator==(const QSharedPointer<T> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator==(const QSharedPointer<T> &lhs, std::nullptr_t) noexcept
 {
     return lhs.isNull();
 }
 
 template<class T>
-inline bool operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) noexcept
 {
     return !lhs.isNull();
 }
 
 template<class T>
-inline bool operator==(std::nullptr_t, const QSharedPointer<T> &rhs) Q_DECL_NOTHROW
+inline bool operator==(std::nullptr_t, const QSharedPointer<T> &rhs) noexcept
 {
     return rhs.isNull();
 }
 
 template<class T>
-inline bool operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) Q_DECL_NOTHROW
+inline bool operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) noexcept
 {
     return !rhs.isNull();
 }
 
 template<class T>
-inline bool operator==(const QWeakPointer<T> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator==(const QWeakPointer<T> &lhs, std::nullptr_t) noexcept
 {
     return lhs.isNull();
 }
 
 template<class T>
-inline bool operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) Q_DECL_NOTHROW
+inline bool operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) noexcept
 {
     return !lhs.isNull();
 }
 
 template<class T>
-inline bool operator==(std::nullptr_t, const QWeakPointer<T> &rhs) Q_DECL_NOTHROW
+inline bool operator==(std::nullptr_t, const QWeakPointer<T> &rhs) noexcept
 {
     return rhs.isNull();
 }
 
 template<class T>
-inline bool operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) Q_DECL_NOTHROW
+inline bool operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) noexcept
 {
     return !rhs.isNull();
 }
@@ -887,18 +880,12 @@ Q_INLINE_TEMPLATE QWeakPointer<T> QSharedPointer<T>::toWeakRef() const
 }
 
 template <class T>
-inline void qSwap(QSharedPointer<T> &p1, QSharedPointer<T> &p2)
-{
-    p1.swap(p2);
-}
+inline void swap(QSharedPointer<T> &p1, QSharedPointer<T> &p2) noexcept
+{ p1.swap(p2); }
 
-QT_END_NAMESPACE
-namespace std {
-    template <class T>
-    inline void swap(QT_PREPEND_NAMESPACE(QSharedPointer)<T> &p1, QT_PREPEND_NAMESPACE(QSharedPointer)<T> &p2)
-    { p1.swap(p2); }
-}
-QT_BEGIN_NAMESPACE
+template <class T>
+inline void swap(QWeakPointer<T> &p1, QWeakPointer<T> &p2) noexcept
+{ p1.swap(p2); }
 
 namespace QtSharedPointer {
 // helper functions:
@@ -996,6 +983,46 @@ qSharedPointerFromVariant(const QVariant &variant)
     return qSharedPointerObjectCast<T>(QtSharedPointer::sharedPointerFromVariant_internal(variant));
 }
 
+// std::shared_ptr helpers
+
+template <typename X, class T>
+std::shared_ptr<X> qobject_pointer_cast(const std::shared_ptr<T> &src)
+{
+    using element_type = typename std::shared_ptr<X>::element_type;
+    return std::shared_ptr<X>(src, qobject_cast<element_type *>(src.get()));
+}
+
+template <typename X, class T>
+std::shared_ptr<X> qobject_pointer_cast(std::shared_ptr<T> &&src)
+{
+    using element_type = typename std::shared_ptr<X>::element_type;
+    auto castResult = qobject_cast<element_type *>(src.get());
+    if (castResult) {
+        auto result = std::shared_ptr<X>(std::move(src), castResult);
+#if __cplusplus <= 201703L
+        // C++2a's move aliasing constructor will leave src empty.
+        // Before C++2a we don't really know if the compiler has support for it.
+        // The move aliasing constructor is the resolution for LWG2996,
+        // which does not impose a feature-testing macro. So: clear src.
+        src.reset();
+#endif
+        return result;
+    }
+    return std::shared_ptr<X>();
+}
+
+template <typename X, class T>
+std::shared_ptr<X> qSharedPointerObjectCast(const std::shared_ptr<T> &src)
+{
+    return qobject_pointer_cast<X>(src);
+}
+
+template <typename X, class T>
+std::shared_ptr<X> qSharedPointerObjectCast(std::shared_ptr<T> &&src)
+{
+    return qobject_pointer_cast<X>(std::move(src));
+}
+
 #endif
 
 template<typename T> Q_DECLARE_TYPEINFO_BODY(QWeakPointer<T>, Q_MOVABLE_TYPE);
diff --git a/src/corelib/tools/qsize.cpp b/src/corelib/tools/qsize.cpp
index 3e97947ad2..fe508ad459 100644
--- a/src/corelib/tools/qsize.cpp
+++ b/src/corelib/tools/qsize.cpp
@@ -163,7 +163,7 @@ QT_BEGIN_NAMESPACE
     \sa setWidth(), setHeight(), transposed()
 */
 
-void QSize::transpose() Q_DECL_NOTHROW
+void QSize::transpose() noexcept
 {
     qSwap(wd, ht);
 }
@@ -222,7 +222,7 @@ void QSize::transpose() Q_DECL_NOTHROW
     Return a size scaled to a rectangle with the given size \a s,
     according to the specified \a mode.
 */
-QSize QSize::scaled(const QSize &s, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW
+QSize QSize::scaled(const QSize &s, Qt::AspectRatioMode mode) const noexcept
 {
     if (mode == Qt::IgnoreAspectRatio || wd == 0 || ht == 0) {
         return s;
@@ -594,7 +594,7 @@ QDebug operator<<(QDebug dbg, const QSize &s)
     \sa setWidth(), setHeight(), transposed()
 */
 
-void QSizeF::transpose() Q_DECL_NOTHROW
+void QSizeF::transpose() noexcept
 {
     qSwap(wd, ht);
 }
@@ -653,7 +653,7 @@ void QSizeF::transpose() Q_DECL_NOTHROW
     Returns a size scaled to a rectangle with the given size \a s,
     according to the specified \a mode.
 */
-QSizeF QSizeF::scaled(const QSizeF &s, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW
+QSizeF QSizeF::scaled(const QSizeF &s, Qt::AspectRatioMode mode) const noexcept
 {
     if (mode == Qt::IgnoreAspectRatio || qIsNull(wd) || qIsNull(ht)) {
         return s;
diff --git a/src/corelib/tools/qsize.h b/src/corelib/tools/qsize.h
index bb29dca7c4..4114609856 100644
--- a/src/corelib/tools/qsize.h
+++ b/src/corelib/tools/qsize.h
@@ -52,46 +52,46 @@ QT_BEGIN_NAMESPACE
 class Q_CORE_EXPORT QSize
 {
 public:
-    Q_DECL_CONSTEXPR QSize() Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QSize(int w, int h) Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline bool isNull() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isEmpty() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isValid() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline int width() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline int height() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(int w) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(int h) Q_DECL_NOTHROW;
-    void transpose() Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize transposed() const Q_DECL_NOTHROW;
-
-    inline void scale(int w, int h, Qt::AspectRatioMode mode) Q_DECL_NOTHROW;
-    inline void scale(const QSize &s, Qt::AspectRatioMode mode) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QSize scaled(int w, int h, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QSize scaled(const QSize &s, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW;
-
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize expandedTo(const QSize &) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize boundedTo(const QSize &) const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline int &rwidth() Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline int &rheight() Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator+=(const QSize &) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator-=(const QSize &) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator*=(qreal c) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QSize() noexcept;
+    Q_DECL_CONSTEXPR QSize(int w, int h) noexcept;
+
+    Q_DECL_CONSTEXPR inline bool isNull() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
+
+    Q_DECL_CONSTEXPR inline int width() const noexcept;
+    Q_DECL_CONSTEXPR inline int height() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(int w) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(int h) noexcept;
+    void transpose() noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize transposed() const noexcept;
+
+    inline void scale(int w, int h, Qt::AspectRatioMode mode) noexcept;
+    inline void scale(const QSize &s, Qt::AspectRatioMode mode) noexcept;
+    Q_REQUIRED_RESULT QSize scaled(int w, int h, Qt::AspectRatioMode mode) const noexcept;
+    Q_REQUIRED_RESULT QSize scaled(const QSize &s, Qt::AspectRatioMode mode) const noexcept;
+
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize expandedTo(const QSize &) const noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize boundedTo(const QSize &) const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline int &rwidth() noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline int &rheight() noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator+=(const QSize &) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator-=(const QSize &) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QSize &operator*=(qreal c) noexcept;
     inline QSize &operator/=(qreal c);
 
-    friend inline Q_DECL_CONSTEXPR bool operator==(const QSize &, const QSize &) Q_DECL_NOTHROW;
-    friend inline Q_DECL_CONSTEXPR bool operator!=(const QSize &, const QSize &) Q_DECL_NOTHROW;
-    friend inline Q_DECL_CONSTEXPR const QSize operator+(const QSize &, const QSize &) Q_DECL_NOTHROW;
-    friend inline Q_DECL_CONSTEXPR const QSize operator-(const QSize &, const QSize &) Q_DECL_NOTHROW;
-    friend inline Q_DECL_CONSTEXPR const QSize operator*(const QSize &, qreal) Q_DECL_NOTHROW;
-    friend inline Q_DECL_CONSTEXPR const QSize operator*(qreal, const QSize &) Q_DECL_NOTHROW;
+    friend inline Q_DECL_CONSTEXPR bool operator==(const QSize &, const QSize &) noexcept;
+    friend inline Q_DECL_CONSTEXPR bool operator!=(const QSize &, const QSize &) noexcept;
+    friend inline Q_DECL_CONSTEXPR const QSize operator+(const QSize &, const QSize &) noexcept;
+    friend inline Q_DECL_CONSTEXPR const QSize operator-(const QSize &, const QSize &) noexcept;
+    friend inline Q_DECL_CONSTEXPR const QSize operator*(const QSize &, qreal) noexcept;
+    friend inline Q_DECL_CONSTEXPR const QSize operator*(qreal, const QSize &) noexcept;
     friend inline const QSize operator/(const QSize &, qreal);
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT CGSize toCGSize() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT CGSize toCGSize() const noexcept;
 #endif
 
 private:
@@ -114,74 +114,74 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QSize &);
   QSize inline functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QSize::QSize() Q_DECL_NOTHROW : wd(-1), ht(-1) {}
+Q_DECL_CONSTEXPR inline QSize::QSize() noexcept : wd(-1), ht(-1) {}
 
-Q_DECL_CONSTEXPR inline QSize::QSize(int w, int h) Q_DECL_NOTHROW : wd(w), ht(h) {}
+Q_DECL_CONSTEXPR inline QSize::QSize(int w, int h) noexcept : wd(w), ht(h) {}
 
-Q_DECL_CONSTEXPR inline bool QSize::isNull() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QSize::isNull() const noexcept
 { return wd==0 && ht==0; }
 
-Q_DECL_CONSTEXPR inline bool QSize::isEmpty() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QSize::isEmpty() const noexcept
 { return wd<1 || ht<1; }
 
-Q_DECL_CONSTEXPR inline bool QSize::isValid() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QSize::isValid() const noexcept
 { return wd>=0 && ht>=0; }
 
-Q_DECL_CONSTEXPR inline int QSize::width() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QSize::width() const noexcept
 { return wd; }
 
-Q_DECL_CONSTEXPR inline int QSize::height() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int QSize::height() const noexcept
 { return ht; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QSize::setWidth(int w) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QSize::setWidth(int w) noexcept
 { wd = w; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QSize::setHeight(int h) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QSize::setHeight(int h) noexcept
 { ht = h; }
 
-Q_DECL_CONSTEXPR inline QSize QSize::transposed() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSize QSize::transposed() const noexcept
 { return QSize(ht, wd); }
 
-inline void QSize::scale(int w, int h, Qt::AspectRatioMode mode) Q_DECL_NOTHROW
+inline void QSize::scale(int w, int h, Qt::AspectRatioMode mode) noexcept
 { scale(QSize(w, h), mode); }
 
-inline void QSize::scale(const QSize &s, Qt::AspectRatioMode mode) Q_DECL_NOTHROW
+inline void QSize::scale(const QSize &s, Qt::AspectRatioMode mode) noexcept
 { *this = scaled(s, mode); }
 
-inline QSize QSize::scaled(int w, int h, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW
+inline QSize QSize::scaled(int w, int h, Qt::AspectRatioMode mode) const noexcept
 { return scaled(QSize(w, h), mode); }
 
-Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rwidth() Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rwidth() noexcept
 { return wd; }
 
-Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rheight() Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rheight() noexcept
 { return ht; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator+=(const QSize &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator+=(const QSize &s) noexcept
 { wd+=s.wd; ht+=s.ht; return *this; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator-=(const QSize &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator-=(const QSize &s) noexcept
 { wd-=s.wd; ht-=s.ht; return *this; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator*=(qreal c) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator*=(qreal c) noexcept
 { wd = qRound(wd*c); ht = qRound(ht*c); return *this; }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QSize &s1, const QSize &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QSize &s1, const QSize &s2) noexcept
 { return s1.wd == s2.wd && s1.ht == s2.ht; }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QSize &s1, const QSize &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QSize &s1, const QSize &s2) noexcept
 { return s1.wd != s2.wd || s1.ht != s2.ht; }
 
-Q_DECL_CONSTEXPR inline const QSize operator+(const QSize & s1, const QSize & s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSize operator+(const QSize & s1, const QSize & s2) noexcept
 { return QSize(s1.wd+s2.wd, s1.ht+s2.ht); }
 
-Q_DECL_CONSTEXPR inline const QSize operator-(const QSize &s1, const QSize &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSize operator-(const QSize &s1, const QSize &s2) noexcept
 { return QSize(s1.wd-s2.wd, s1.ht-s2.ht); }
 
-Q_DECL_CONSTEXPR inline const QSize operator*(const QSize &s, qreal c) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSize operator*(const QSize &s, qreal c) noexcept
 { return QSize(qRound(s.wd*c), qRound(s.ht*c)); }
 
-Q_DECL_CONSTEXPR inline const QSize operator*(qreal c, const QSize &s) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSize operator*(qreal c, const QSize &s) noexcept
 { return QSize(qRound(s.wd*c), qRound(s.ht*c)); }
 
 inline QSize &QSize::operator/=(qreal c)
@@ -197,12 +197,12 @@ inline const QSize operator/(const QSize &s, qreal c)
     return QSize(qRound(s.wd/c), qRound(s.ht/c));
 }
 
-Q_DECL_CONSTEXPR inline QSize QSize::expandedTo(const QSize & otherSize) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSize QSize::expandedTo(const QSize & otherSize) const noexcept
 {
     return QSize(qMax(wd,otherSize.wd), qMax(ht,otherSize.ht));
 }
 
-Q_DECL_CONSTEXPR inline QSize QSize::boundedTo(const QSize & otherSize) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSize QSize::boundedTo(const QSize & otherSize) const noexcept
 {
     return QSize(qMin(wd,otherSize.wd), qMin(ht,otherSize.ht));
 }
@@ -215,50 +215,50 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QSize &);
 class Q_CORE_EXPORT QSizeF
 {
 public:
-    Q_DECL_CONSTEXPR QSizeF() Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QSizeF(const QSize &sz) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR QSizeF(qreal w, qreal h) Q_DECL_NOTHROW;
-
-    inline bool isNull() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isEmpty() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline bool isValid() const Q_DECL_NOTHROW;
-
-    Q_DECL_CONSTEXPR inline qreal width() const Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline qreal height() const Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(qreal w) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(qreal h) Q_DECL_NOTHROW;
-    void transpose() Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF transposed() const Q_DECL_NOTHROW;
-
-    inline void scale(qreal w, qreal h, Qt::AspectRatioMode mode) Q_DECL_NOTHROW;
-    inline void scale(const QSizeF &s, Qt::AspectRatioMode mode) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QSizeF scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QSizeF scaled(const QSizeF &s, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW;
-
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF expandedTo(const QSizeF &) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF boundedTo(const QSizeF &) const Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline qreal &rwidth() Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline qreal &rheight() Q_DECL_NOTHROW;
-
-    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator+=(const QSizeF &) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator-=(const QSizeF &) Q_DECL_NOTHROW;
-    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator*=(qreal c) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QSizeF() noexcept;
+    Q_DECL_CONSTEXPR QSizeF(const QSize &sz) noexcept;
+    Q_DECL_CONSTEXPR QSizeF(qreal w, qreal h) noexcept;
+
+    inline bool isNull() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
+    Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
+
+    Q_DECL_CONSTEXPR inline qreal width() const noexcept;
+    Q_DECL_CONSTEXPR inline qreal height() const noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setWidth(qreal w) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline void setHeight(qreal h) noexcept;
+    void transpose() noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF transposed() const noexcept;
+
+    inline void scale(qreal w, qreal h, Qt::AspectRatioMode mode) noexcept;
+    inline void scale(const QSizeF &s, Qt::AspectRatioMode mode) noexcept;
+    Q_REQUIRED_RESULT QSizeF scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const noexcept;
+    Q_REQUIRED_RESULT QSizeF scaled(const QSizeF &s, Qt::AspectRatioMode mode) const noexcept;
+
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF expandedTo(const QSizeF &) const noexcept;
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF boundedTo(const QSizeF &) const noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline qreal &rwidth() noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline qreal &rheight() noexcept;
+
+    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator+=(const QSizeF &) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator-=(const QSizeF &) noexcept;
+    Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator*=(qreal c) noexcept;
     inline QSizeF &operator/=(qreal c);
 
-    friend Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &, const QSizeF &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &, const QSizeF &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF &, const QSizeF &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &, const QSizeF &) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &, qreal) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal, const QSizeF &) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &, const QSizeF &) noexcept;
+    friend Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &, const QSizeF &) noexcept;
+    friend Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF &, const QSizeF &) noexcept;
+    friend Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &, const QSizeF &) noexcept;
+    friend Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &, qreal) noexcept;
+    friend Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal, const QSizeF &) noexcept;
     friend inline const QSizeF operator/(const QSizeF &, qreal);
 
-    Q_DECL_CONSTEXPR inline QSize toSize() const Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR inline QSize toSize() const noexcept;
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
-    Q_REQUIRED_RESULT static QSizeF fromCGSize(CGSize size) Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT CGSize toCGSize() const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT static QSizeF fromCGSize(CGSize size) noexcept;
+    Q_REQUIRED_RESULT CGSize toCGSize() const noexcept;
 #endif
 
 private:
@@ -282,76 +282,76 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QSizeF &);
   QSizeF inline functions
  *****************************************************************************/
 
-Q_DECL_CONSTEXPR inline QSizeF::QSizeF() Q_DECL_NOTHROW : wd(-1.), ht(-1.) {}
+Q_DECL_CONSTEXPR inline QSizeF::QSizeF() noexcept : wd(-1.), ht(-1.) {}
 
-Q_DECL_CONSTEXPR inline QSizeF::QSizeF(const QSize &sz) Q_DECL_NOTHROW : wd(sz.width()), ht(sz.height()) {}
+Q_DECL_CONSTEXPR inline QSizeF::QSizeF(const QSize &sz) noexcept : wd(sz.width()), ht(sz.height()) {}
 
-Q_DECL_CONSTEXPR inline QSizeF::QSizeF(qreal w, qreal h) Q_DECL_NOTHROW : wd(w), ht(h) {}
+Q_DECL_CONSTEXPR inline QSizeF::QSizeF(qreal w, qreal h) noexcept : wd(w), ht(h) {}
 
-inline bool QSizeF::isNull() const Q_DECL_NOTHROW
+inline bool QSizeF::isNull() const noexcept
 { return qIsNull(wd) && qIsNull(ht); }
 
-Q_DECL_CONSTEXPR inline bool QSizeF::isEmpty() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QSizeF::isEmpty() const noexcept
 { return wd <= 0. || ht <= 0.; }
 
-Q_DECL_CONSTEXPR inline bool QSizeF::isValid() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool QSizeF::isValid() const noexcept
 { return wd >= 0. && ht >= 0.; }
 
-Q_DECL_CONSTEXPR inline qreal QSizeF::width() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QSizeF::width() const noexcept
 { return wd; }
 
-Q_DECL_CONSTEXPR inline qreal QSizeF::height() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline qreal QSizeF::height() const noexcept
 { return ht; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setWidth(qreal w) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setWidth(qreal w) noexcept
 { wd = w; }
 
-Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setHeight(qreal h) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setHeight(qreal h) noexcept
 { ht = h; }
 
-Q_DECL_CONSTEXPR inline QSizeF QSizeF::transposed() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSizeF QSizeF::transposed() const noexcept
 { return QSizeF(ht, wd); }
 
-inline void QSizeF::scale(qreal w, qreal h, Qt::AspectRatioMode mode) Q_DECL_NOTHROW
+inline void QSizeF::scale(qreal w, qreal h, Qt::AspectRatioMode mode) noexcept
 { scale(QSizeF(w, h), mode); }
 
-inline void QSizeF::scale(const QSizeF &s, Qt::AspectRatioMode mode) Q_DECL_NOTHROW
+inline void QSizeF::scale(const QSizeF &s, Qt::AspectRatioMode mode) noexcept
 { *this = scaled(s, mode); }
 
-inline QSizeF QSizeF::scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const Q_DECL_NOTHROW
+inline QSizeF QSizeF::scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const noexcept
 { return scaled(QSizeF(w, h), mode); }
 
-Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rwidth() Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rwidth() noexcept
 { return wd; }
 
-Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rheight() Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rheight() noexcept
 { return ht; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator+=(const QSizeF &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator+=(const QSizeF &s) noexcept
 { wd += s.wd; ht += s.ht; return *this; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator-=(const QSizeF &s) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator-=(const QSizeF &s) noexcept
 { wd -= s.wd; ht -= s.ht; return *this; }
 
-Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator*=(qreal c) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator*=(qreal c) noexcept
 { wd *= c; ht *= c; return *this; }
 
-Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &s1, const QSizeF &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &s1, const QSizeF &s2) noexcept
 { return qFuzzyCompare(s1.wd, s2.wd) && qFuzzyCompare(s1.ht, s2.ht); }
 
-Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &s1, const QSizeF &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &s1, const QSizeF &s2) noexcept
 { return !qFuzzyCompare(s1.wd, s2.wd) || !qFuzzyCompare(s1.ht, s2.ht); }
 
-Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF & s1, const QSizeF & s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF & s1, const QSizeF & s2) noexcept
 { return QSizeF(s1.wd+s2.wd, s1.ht+s2.ht); }
 
-Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &s1, const QSizeF &s2) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &s1, const QSizeF &s2) noexcept
 { return QSizeF(s1.wd-s2.wd, s1.ht-s2.ht); }
 
-Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &s, qreal c) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &s, qreal c) noexcept
 { return QSizeF(s.wd*c, s.ht*c); }
 
-Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal c, const QSizeF &s) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal c, const QSizeF &s) noexcept
 { return QSizeF(s.wd*c, s.ht*c); }
 
 inline QSizeF &QSizeF::operator/=(qreal c)
@@ -367,17 +367,17 @@ inline const QSizeF operator/(const QSizeF &s, qreal c)
     return QSizeF(s.wd/c, s.ht/c);
 }
 
-Q_DECL_CONSTEXPR inline QSizeF QSizeF::expandedTo(const QSizeF & otherSize) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSizeF QSizeF::expandedTo(const QSizeF & otherSize) const noexcept
 {
     return QSizeF(qMax(wd,otherSize.wd), qMax(ht,otherSize.ht));
 }
 
-Q_DECL_CONSTEXPR inline QSizeF QSizeF::boundedTo(const QSizeF & otherSize) const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSizeF QSizeF::boundedTo(const QSizeF & otherSize) const noexcept
 {
     return QSizeF(qMin(wd,otherSize.wd), qMin(ht,otherSize.ht));
 }
 
-Q_DECL_CONSTEXPR inline QSize QSizeF::toSize() const Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline QSize QSizeF::toSize() const noexcept
 {
     return QSize(qRound(wd), qRound(ht));
 }
diff --git a/src/corelib/tools/qstack.h b/src/corelib/tools/qstack.h
index bf04935b50..e59212aa2a 100644
--- a/src/corelib/tools/qstack.h
+++ b/src/corelib/tools/qstack.h
@@ -50,7 +50,7 @@ class QStack : public QVector<T>
 {
 public:
     // compiler-generated special member functions are fine!
-    inline void swap(QStack<T> &other) Q_DECL_NOTHROW { QVector<T>::swap(other); } // prevent QVector<->QStack swaps
+    inline void swap(QStack<T> &other) noexcept { QVector<T>::swap(other); } // prevent QVector<->QStack swaps
     inline void push(const T &t) { QVector<T>::append(t); }
     T pop();
     T &top();
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index ee9d486eb8..a5396bfb69 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -2,6 +2,7 @@
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Copyright (C) 2018 Intel Corporation.
+** Copyright (C) 2019 Mail.ru Group.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -142,19 +143,12 @@ extern "C" void qt_toLatin1_mips_dsp_asm(uchar *dst, const ushort *src, int leng
 #endif
 
 // internal
-int qFindString(const QChar *haystack, int haystackLen, int from,
-    const QChar *needle, int needleLen, Qt::CaseSensitivity cs);
-int qFindStringBoyerMoore(const QChar *haystack, int haystackLen, int from,
-    const QChar *needle, int needleLen, Qt::CaseSensitivity cs);
-static inline int qt_last_index_of(const QChar *haystack, int haystackLen, QChar needle,
-                                   int from, Qt::CaseSensitivity cs);
-static inline int qt_string_count(const QChar *haystack, int haystackLen,
-                                  const QChar *needle, int needleLen,
-                                  Qt::CaseSensitivity cs);
-static inline int qt_string_count(const QChar *haystack, int haystackLen,
-                                  QChar needle, Qt::CaseSensitivity cs);
-static inline int qt_find_latin1_string(const QChar *hay, int size, QLatin1String needle,
-                                        int from, Qt::CaseSensitivity cs);
+qsizetype qFindStringBoyerMoore(QStringView haystack, qsizetype from, QStringView needle, Qt::CaseSensitivity cs);
+static inline qsizetype qFindChar(QStringView str, QChar ch, qsizetype from, Qt::CaseSensitivity cs) noexcept;
+static inline qsizetype qt_last_index_of(QStringView haystack, QChar needle, qsizetype from, Qt::CaseSensitivity cs);
+static inline qsizetype qt_string_count(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs);
+static inline qsizetype qt_string_count(QStringView haystack, QChar needle, Qt::CaseSensitivity cs);
+
 static inline bool qt_starts_with(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs);
 static inline bool qt_starts_with(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs);
 static inline bool qt_starts_with(QStringView haystack, QChar needle, Qt::CaseSensitivity cs);
@@ -162,7 +156,7 @@ static inline bool qt_ends_with(QStringView haystack, QStringView needle, Qt::Ca
 static inline bool qt_ends_with(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs);
 static inline bool qt_ends_with(QStringView haystack, QChar needle, Qt::CaseSensitivity cs);
 
-qsizetype QtPrivate::qustrlen(const ushort *str) Q_DECL_NOTHROW
+qsizetype QtPrivate::qustrlen(const ushort *str) noexcept
 {
     qsizetype result = 0;
 
@@ -208,7 +202,7 @@ qsizetype QtPrivate::qustrlen(const ushort *str) Q_DECL_NOTHROW
     return result;
 }
 
-#if defined(Q_COMPILER_LAMBDA) && !defined(__OPTIMIZE_SIZE__)
+#if !defined(__OPTIMIZE_SIZE__)
 namespace {
 template <uint MaxCount> struct UnrollTailLoop
 {
@@ -460,7 +454,7 @@ static Q_ALWAYS_INLINE __m128i mm_load8_zero_extend(const void *ptr)
 
 // Note: ptr on output may be off by one and point to a preceding US-ASCII
 // character. Usually harmless.
-bool qt_is_ascii(const char *&ptr, const char *end) Q_DECL_NOTHROW
+bool qt_is_ascii(const char *&ptr, const char *end) noexcept
 {
 #if defined(__SSE2__)
     // Testing for the high bit can be done efficiently with just PMOVMSKB
@@ -520,7 +514,7 @@ bool qt_is_ascii(const char *&ptr, const char *end) Q_DECL_NOTHROW
     return true;
 }
 
-bool QtPrivate::isAscii(QLatin1String s) Q_DECL_NOTHROW
+bool QtPrivate::isAscii(QLatin1String s) noexcept
 {
     const char *ptr = s.begin();
     const char *end = s.end();
@@ -547,7 +541,7 @@ static bool isAscii(const QChar *&ptr, const QChar *end)
     return true;
 }
 
-bool QtPrivate::isAscii(QStringView s) Q_DECL_NOTHROW
+bool QtPrivate::isAscii(QStringView s) noexcept
 {
     const QChar *ptr = s.begin();
     const QChar *end = s.end();
@@ -555,7 +549,7 @@ bool QtPrivate::isAscii(QStringView s) Q_DECL_NOTHROW
     return isAscii(ptr, end);
 }
 
-bool QtPrivate::isLatin1(QStringView s) Q_DECL_NOTHROW
+bool QtPrivate::isLatin1(QStringView s) noexcept
 {
     const QChar *ptr = s.begin();
     const QChar *end = s.end();
@@ -595,7 +589,7 @@ bool QtPrivate::isLatin1(QStringView s) Q_DECL_NOTHROW
 }
 
 // conversion between Latin 1 and UTF-16
-void qt_from_latin1(ushort *dst, const char *str, size_t size) Q_DECL_NOTHROW
+void qt_from_latin1(ushort *dst, const char *str, size_t size) noexcept
 {
     /* SIMD:
      * Unpacking with SSE has been shown to improve performance on recent CPUs
@@ -638,7 +632,7 @@ void qt_from_latin1(ushort *dst, const char *str, size_t size) Q_DECL_NOTHROW
     size = size % 8;
     dst += offset;
     str += offset;
-#  if defined(Q_COMPILER_LAMBDA) && !defined(__OPTIMIZE_SIZE__)
+#  if !defined(__OPTIMIZE_SIZE__)
     return UnrollTailLoop<7>::exec(int(size), [=](int i) { dst[i] = (uchar)str[i]; });
 #  endif
 #endif
@@ -833,9 +827,9 @@ static int ucstricmp(const QChar *a, const QChar *ae, const QChar *b, const QCha
     uint alast = 0;
     uint blast = 0;
     while (a < e) {
-//         qDebug() << hex << alast << blast;
-//         qDebug() << hex << "*a=" << *a << "alast=" << alast << "folded=" << foldCase (*a, alast);
-//         qDebug() << hex << "*b=" << *b << "blast=" << blast << "folded=" << foldCase (*b, blast);
+//         qDebug() << Qt::hex << alast << blast;
+//         qDebug() << Qt::hex << "*a=" << *a << "alast=" << alast << "folded=" << foldCase (*a, alast);
+//         qDebug() << Qt::hex << "*b=" << *b << "blast=" << blast << "folded=" << foldCase (*b, blast);
         int diff = foldCase(a->unicode(), alast) - foldCase(b->unicode(), blast);
         if ((diff))
             return diff;
@@ -1152,7 +1146,7 @@ static int ucstrncmp(const QChar *a, const uchar *c, size_t l)
 }
 
 template <typename Number>
-Q_DECL_CONSTEXPR int lencmp(Number lhs, Number rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR int lencmp(Number lhs, Number rhs) noexcept
 {
     return lhs == rhs ? 0 :
            lhs >  rhs ? 1 :
@@ -1176,7 +1170,7 @@ static int ucstrcmp(const QChar *a, size_t alen, const char *b, size_t blen)
     return cmp ? cmp : lencmp(alen, blen);
 }
 
-static int qt_compare_strings(QStringView lhs, QStringView rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+static int qt_compare_strings(QStringView lhs, QStringView rhs, Qt::CaseSensitivity cs) noexcept
 {
     if (cs == Qt::CaseSensitive)
         return ucstrcmp(lhs.begin(), lhs.size(), rhs.begin(), rhs.size());
@@ -1184,7 +1178,7 @@ static int qt_compare_strings(QStringView lhs, QStringView rhs, Qt::CaseSensitiv
         return ucstricmp(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
 }
 
-static int qt_compare_strings(QStringView lhs, QLatin1String rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+static int qt_compare_strings(QStringView lhs, QLatin1String rhs, Qt::CaseSensitivity cs) noexcept
 {
     if (cs == Qt::CaseSensitive)
         return ucstrcmp(lhs.begin(), lhs.size(), rhs.begin(), rhs.size());
@@ -1192,12 +1186,12 @@ static int qt_compare_strings(QStringView lhs, QLatin1String rhs, Qt::CaseSensit
         return ucstricmp(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
 }
 
-static int qt_compare_strings(QLatin1String lhs, QStringView rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+static int qt_compare_strings(QLatin1String lhs, QStringView rhs, Qt::CaseSensitivity cs) noexcept
 {
     return -qt_compare_strings(rhs, lhs, cs);
 }
 
-static int qt_compare_strings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+static int qt_compare_strings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs) noexcept
 {
     if (cs == Qt::CaseInsensitive)
         return qstrnicmp(lhs.data(), lhs.size(), rhs.data(), rhs.size());
@@ -1222,7 +1216,7 @@ static int qt_compare_strings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSens
     of the characters and is very fast, but is not what a human would expect.
     Consider sorting user-visible strings with QString::localeAwareCompare().
 */
-int QtPrivate::compareStrings(QStringView lhs, QStringView rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+int QtPrivate::compareStrings(QStringView lhs, QStringView rhs, Qt::CaseSensitivity cs) noexcept
 {
     return qt_compare_strings(lhs, rhs, cs);
 }
@@ -1242,7 +1236,7 @@ int QtPrivate::compareStrings(QStringView lhs, QStringView rhs, Qt::CaseSensitiv
     of the characters and is very fast, but is not what a human would expect.
     Consider sorting user-visible strings with QString::localeAwareCompare().
 */
-int QtPrivate::compareStrings(QStringView lhs, QLatin1String rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+int QtPrivate::compareStrings(QStringView lhs, QLatin1String rhs, Qt::CaseSensitivity cs) noexcept
 {
     return qt_compare_strings(lhs, rhs, cs);
 }
@@ -1262,7 +1256,7 @@ int QtPrivate::compareStrings(QStringView lhs, QLatin1String rhs, Qt::CaseSensit
     of the characters and is very fast, but is not what a human would expect.
     Consider sorting user-visible strings with QString::localeAwareCompare().
 */
-int QtPrivate::compareStrings(QLatin1String lhs, QStringView rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+int QtPrivate::compareStrings(QLatin1String lhs, QStringView rhs, Qt::CaseSensitivity cs) noexcept
 {
     return qt_compare_strings(lhs, rhs, cs);
 }
@@ -1282,47 +1276,14 @@ int QtPrivate::compareStrings(QLatin1String lhs, QStringView rhs, Qt::CaseSensit
     of the characters and is very fast, but is not what a human would expect.
     Consider sorting user-visible strings with QString::localeAwareCompare().
 */
-int QtPrivate::compareStrings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+int QtPrivate::compareStrings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs) noexcept
 {
     return qt_compare_strings(lhs, rhs, cs);
 }
 
-/*!
-    \internal
-
-    Returns the index position of the first occurrence of the
-    character \a ch in the string given by \a str and \a len,
-    searching forward from index
-    position \a from. Returns -1 if \a ch could not be found.
-*/
-static int findChar(const QChar *str, int len, QChar ch, int from,
-    Qt::CaseSensitivity cs)
-{
-    const ushort *s = (const ushort *)str;
-    ushort c = ch.unicode();
-    if (from < 0)
-        from = qMax(from + len, 0);
-    if (from < len) {
-        const ushort *n = s + from;
-        const ushort *e = s + len;
-        if (cs == Qt::CaseSensitive) {
-            n = QtPrivate::qustrchr(QStringView(n, e), c);
-            if (n != e)
-                return n - s;
-        } else {
-            c = foldCase(c);
-            --n;
-            while (++n != e)
-                if (foldCase(*n) == c)
-                    return  n - s;
-        }
-    }
-    return -1;
-}
-
 #define REHASH(a) \
-    if (sl_minus_1 < sizeof(uint) * CHAR_BIT)  \
-        hashHaystack -= uint(a) << sl_minus_1; \
+    if (sl_minus_1 < sizeof(std::size_t) * CHAR_BIT)  \
+        hashHaystack -= std::size_t(a) << sl_minus_1; \
     hashHaystack <<= 1
 
 inline bool qIsUpper(char ch)
@@ -2089,7 +2050,7 @@ int QString::toUcs4_helper(const ushort *uc, int length, uint *out)
 
   \note This function does not append a null character to the array.
 
-  \sa utf16(), toUcs4(), toLatin1(), toUtf8(), toLocal8Bit(), toStdWString()
+  \sa utf16(), toUcs4(), toLatin1(), toUtf8(), toLocal8Bit(), toStdWString(), QStringView::toWCharArray()
 */
 
 /*! \fn QString::QString(const QString &other)
@@ -2410,7 +2371,7 @@ void QString::expand(int i)
     string.
 */
 
-QString &QString::operator=(const QString &other) Q_DECL_NOTHROW
+QString &QString::operator=(const QString &other) noexcept
 {
     other.d->ref.ref();
     if (!d->ref.deref())
@@ -3396,7 +3357,7 @@ QString &QString::replace(QChar c, QLatin1String after, Qt::CaseSensitivity cs)
   expect. Consider sorting user-interface strings with
   localeAwareCompare().
 */
-bool operator==(const QString &s1, const QString &s2) Q_DECL_NOTHROW
+bool operator==(const QString &s1, const QString &s2) noexcept
 {
     if (s1.d->size != s2.d->size)
         return false;
@@ -3409,7 +3370,7 @@ bool operator==(const QString &s1, const QString &s2) Q_DECL_NOTHROW
     Returns \c true if this string is equal to \a other; otherwise
     returns \c false.
 */
-bool QString::operator==(QLatin1String other) const Q_DECL_NOTHROW
+bool QString::operator==(QLatin1String other) const noexcept
 {
     if (d->size != other.size())
         return false;
@@ -3461,7 +3422,7 @@ bool QString::operator==(QLatin1String other) const Q_DECL_NOTHROW
     expect. Consider sorting user-interface strings using the
     QString::localeAwareCompare() function.
 */
-bool operator<(const QString &s1, const QString &s2) Q_DECL_NOTHROW
+bool operator<(const QString &s1, const QString &s2) noexcept
 {
     return qt_compare_strings(s1, s2, Qt::CaseSensitive) < 0;
 }
@@ -3472,7 +3433,7 @@ bool operator<(const QString &s1, const QString &s2) Q_DECL_NOTHROW
     Returns \c true if this string is lexically less than the parameter
     string called \a other; otherwise returns \c false.
 */
-bool QString::operator<(QLatin1String other) const Q_DECL_NOTHROW
+bool QString::operator<(QLatin1String other) const noexcept
 {
     return qt_compare_strings(*this, other, Qt::CaseSensitive) < 0;
 }
@@ -3581,7 +3542,7 @@ bool QString::operator<(QLatin1String other) const Q_DECL_NOTHROW
     Returns \c true if this string is lexically greater than the parameter
     string \a other; otherwise returns \c false.
 */
-bool QString::operator>(QLatin1String other) const Q_DECL_NOTHROW
+bool QString::operator>(QLatin1String other) const noexcept
 {
     return qt_compare_strings(*this, other, Qt::CaseSensitive) > 0;
 }
@@ -3719,6 +3680,7 @@ bool QString::operator>(QLatin1String other) const Q_DECL_NOTHROW
     \sa QT_NO_CAST_FROM_ASCII
 */
 
+#if QT_STRINGVIEW_LEVEL < 2
 /*!
   Returns the index position of the first occurrence of the string \a
   str in this string, searching forward from index position \a
@@ -3738,8 +3700,28 @@ bool QString::operator>(QLatin1String other) const Q_DECL_NOTHROW
 */
 int QString::indexOf(const QString &str, int from, Qt::CaseSensitivity cs) const
 {
-    return qFindString(unicode(), length(), from, str.unicode(), str.length(), cs);
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), length()), from, QStringView(str.unicode(), str.length()), cs));
 }
+#endif  // QT_STRINGVIEW_LEVEL < 2
+
+/*!
+    \fn int QString::indexOf(QStringView str, int from, Qt::CaseSensitivity cs) const
+    \since 5.14
+    \overload indexOf()
+
+    Returns the index position of the first occurrence of the string view \a str
+    in this string, searching forward from index position \a from.
+    Returns -1 if \a str is not found.
+
+    If \a cs is Qt::CaseSensitive (default), the search is case
+    sensitive; otherwise the search is case insensitive.
+
+    If \a from is -1, the search starts at the last character; if it is
+    -2, at the next to last character and so on.
+
+    \sa QStringView::indexOf(), lastIndexOf(), contains(), count()
+*/
 
 /*!
   \since 4.5
@@ -3762,85 +3744,8 @@ int QString::indexOf(const QString &str, int from, Qt::CaseSensitivity cs) const
 
 int QString::indexOf(QLatin1String str, int from, Qt::CaseSensitivity cs) const
 {
-    return qt_find_latin1_string(unicode(), size(), str, from, cs);
-}
-
-int qFindString(
-    const QChar *haystack0, int haystackLen, int from,
-    const QChar *needle0, int needleLen, Qt::CaseSensitivity cs)
-{
-    const int l = haystackLen;
-    const int sl = needleLen;
-    if (from < 0)
-        from += l;
-    if (uint(sl + from) > (uint)l)
-        return -1;
-    if (!sl)
-        return from;
-    if (!l)
-        return -1;
-
-    if (sl == 1)
-        return findChar(haystack0, haystackLen, needle0[0], from, cs);
-
-    /*
-        We use the Boyer-Moore algorithm in cases where the overhead
-        for the skip table should pay off, otherwise we use a simple
-        hash function.
-    */
-    if (l > 500 && sl > 5)
-        return qFindStringBoyerMoore(haystack0, haystackLen, from,
-            needle0, needleLen, cs);
-
-    auto sv = [sl](const ushort *v) { return QStringView(v, sl); };
-    /*
-        We use some hashing for efficiency's sake. Instead of
-        comparing strings, we compare the hash value of str with that
-        of a part of this QString. Only if that matches, we call
-        qt_string_compare().
-    */
-    const ushort *needle = (const ushort *)needle0;
-    const ushort *haystack = (const ushort *)haystack0 + from;
-    const ushort *end = (const ushort *)haystack0 + (l-sl);
-    const uint sl_minus_1 = sl - 1;
-    uint hashNeedle = 0, hashHaystack = 0;
-    int idx;
-
-    if (cs == Qt::CaseSensitive) {
-        for (idx = 0; idx < sl; ++idx) {
-            hashNeedle = ((hashNeedle<<1) + needle[idx]);
-            hashHaystack = ((hashHaystack<<1) + haystack[idx]);
-        }
-        hashHaystack -= haystack[sl_minus_1];
-
-        while (haystack <= end) {
-            hashHaystack += haystack[sl_minus_1];
-            if (hashHaystack == hashNeedle
-                 && qt_compare_strings(sv(needle), sv(haystack), Qt::CaseSensitive) == 0)
-                return haystack - (const ushort *)haystack0;
-
-            REHASH(*haystack);
-            ++haystack;
-        }
-    } else {
-        const ushort *haystack_start = (const ushort *)haystack0;
-        for (idx = 0; idx < sl; ++idx) {
-            hashNeedle = (hashNeedle<<1) + foldCase(needle + idx, needle);
-            hashHaystack = (hashHaystack<<1) + foldCase(haystack + idx, haystack_start);
-        }
-        hashHaystack -= foldCase(haystack + sl_minus_1, haystack_start);
-
-        while (haystack <= end) {
-            hashHaystack += foldCase(haystack + sl_minus_1, haystack_start);
-            if (hashHaystack == hashNeedle
-                 && qt_compare_strings(sv(needle), sv(haystack), Qt::CaseInsensitive) == 0)
-                return haystack - (const ushort *)haystack0;
-
-            REHASH(foldCase(haystack, haystack_start));
-            ++haystack;
-        }
-    }
-    return -1;
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), size()), from, str, cs));
 }
 
 /*!
@@ -3852,9 +3757,11 @@ int qFindString(
 */
 int QString::indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 {
-    return findChar(unicode(), length(), ch, from, cs);
+    // ### Qt6: qsize
+    return int(qFindChar(QStringView(unicode(), length()), ch, from, cs));
 }
 
+#if QT_STRINGVIEW_LEVEL < 2
 /*!
     \since 4.8
 
@@ -3869,8 +3776,10 @@ int QString::indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 */
 int QString::indexOf(const QStringRef &str, int from, Qt::CaseSensitivity cs) const
 {
-    return qFindString(unicode(), length(), from, str.unicode(), str.length(), cs);
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), length()), from, QStringView(str.unicode(), str.length()), cs));
 }
+#endif // QT_STRINGVIEW_LEVEL < 2
 
 static int lastIndexOfHelper(const ushort *haystack, int from, const ushort *needle, int sl, Qt::CaseSensitivity cs)
 {
@@ -3992,7 +3901,8 @@ int QString::lastIndexOf(QLatin1String str, int from, Qt::CaseSensitivity cs) co
 */
 int QString::lastIndexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 {
-    return qt_last_index_of(unicode(), size(), ch, from, cs);
+    // ### Qt6: qsize
+    return int(qt_last_index_of(QStringView(unicode(), size()), ch, from, cs));
 }
 
 /*!
@@ -4325,7 +4235,8 @@ QString &QString::replace(const QRegularExpression &re, const QString &after)
 
 int QString::count(const QString &str, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), str.unicode(), str.size(), cs);
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), QStringView(str.unicode(), str.size()), cs));
 }
 
 /*!
@@ -4341,8 +4252,9 @@ int QString::count(const QString &str, Qt::CaseSensitivity cs) const
 
 int QString::count(QChar ch, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), ch, cs);
-    }
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), ch, cs));
+}
 
 /*!
     \since 4.8
@@ -4357,7 +4269,8 @@ int QString::count(QChar ch, Qt::CaseSensitivity cs) const
 */
 int QString::count(const QStringRef &str, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), str.unicode(), str.size(), cs);
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), QStringView(str.unicode(), str.size()), cs));
 }
 
 
@@ -4571,7 +4484,7 @@ int QString::indexOf(const QRegularExpression &re, int from, QRegularExpressionM
     if (match.hasMatch()) {
         const int ret = match.capturedStart();
         if (rmatch)
-            *rmatch = qMove(match);
+            *rmatch = std::move(match);
         return ret;
     }
 
@@ -4627,7 +4540,7 @@ int QString::lastIndexOf(const QRegularExpression &re, int from, QRegularExpress
         if (start < endpos) {
             lastIndex = start;
             if (rmatch)
-                *rmatch = qMove(match);
+                *rmatch = std::move(match);
         } else {
             break;
         }
@@ -4670,7 +4583,7 @@ bool QString::contains(const QRegularExpression &re, QRegularExpressionMatch *rm
     QRegularExpressionMatch m = re.match(*this);
     bool hasMatch = m.hasMatch();
     if (hasMatch && rmatch)
-        *rmatch = qMove(m);
+        *rmatch = std::move(m);
     return hasMatch;
 }
 
@@ -4830,7 +4743,7 @@ QString QString::section(const QString &sep, int start, int end, SectionFlags fl
 class qt_section_chunk {
 public:
     qt_section_chunk() {}
-    qt_section_chunk(int l, QStringRef s) : length(l), string(qMove(s)) {}
+    qt_section_chunk(int l, QStringRef s) : length(l), string(std::move(s)) {}
     int length;
     QStringRef string;
 };
@@ -5781,7 +5694,7 @@ QString QString::simplified_helper(QString &str)
 
 namespace {
     template <typename StringView>
-    StringView qt_trimmed(StringView s) Q_DECL_NOTHROW
+    StringView qt_trimmed(StringView s) noexcept
     {
         auto begin = s.begin();
         auto end = s.end();
@@ -5805,12 +5718,12 @@ namespace {
 
     \sa QString::trimmed(), QStringView::trimmed(), QLatin1String::trimmed()
 */
-QStringView QtPrivate::trimmed(QStringView s) Q_DECL_NOTHROW
+QStringView QtPrivate::trimmed(QStringView s) noexcept
 {
     return qt_trimmed(s);
 }
 
-QLatin1String QtPrivate::trimmed(QLatin1String s) Q_DECL_NOTHROW
+QLatin1String QtPrivate::trimmed(QLatin1String s) noexcept
 {
     return qt_trimmed(s);
 }
@@ -6348,7 +6261,7 @@ QString& QString::fill(QChar ch, int size)
 
     Same as compare(*this, \a other, \a cs).
 */
-int QString::compare(const QString &other, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+int QString::compare(const QString &other, Qt::CaseSensitivity cs) const noexcept
 {
     return qt_compare_strings(*this, other, cs);
 }
@@ -6359,7 +6272,7 @@ int QString::compare(const QString &other, Qt::CaseSensitivity cs) const Q_DECL_
     \since 4.5
 */
 int QString::compare_helper(const QChar *data1, int length1, const QChar *data2, int length2,
-                            Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+                            Qt::CaseSensitivity cs) noexcept
 {
     Q_ASSERT(length1 >= 0);
     Q_ASSERT(length2 >= 0);
@@ -6374,7 +6287,7 @@ int QString::compare_helper(const QChar *data1, int length1, const QChar *data2,
 
     Same as compare(*this, \a other, \a cs).
 */
-int QString::compare(QLatin1String other, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+int QString::compare(QLatin1String other, Qt::CaseSensitivity cs) const noexcept
 {
     return qt_compare_strings(*this, other, cs);
 }
@@ -6420,7 +6333,7 @@ int QString::compare_helper(const QChar *data1, int length1, const char *data2,
     \since 4.5
 */
 int QString::compare_helper(const QChar *data1, int length1, QLatin1String s2,
-                            Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+                            Qt::CaseSensitivity cs) noexcept
 {
     Q_ASSERT(length1 >= 0);
     Q_ASSERT(data1 || length1 == 0);
@@ -6722,7 +6635,7 @@ Q_NEVER_INLINE
 static QString detachAndConvertCase(T &str, QStringIterator it)
 {
     Q_ASSERT(!str.isEmpty());
-    QString s = qMove(str);             // will copy if T is const QString
+    QString s = std::move(str);             // will copy if T is const QString
     QChar *pp = s.begin() + it.index(); // will detach if necessary
 
     do {
@@ -6780,7 +6693,7 @@ static QString convertCase(T &str)
             return detachAndConvertCase<Traits>(str, it);
         }
     }
-    return qMove(str);
+    return std::move(str);
 }
 } // namespace QUnicodeTables
 
@@ -6834,6 +6747,7 @@ QString QString::toUpper_helper(QString &str)
     return QUnicodeTables::convertCase<QUnicodeTables::UppercaseTraits>(str);
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
     \obsolete
 
@@ -6847,6 +6761,7 @@ QString &QString::sprintf(const char *cformat, ...)
     va_end(ap);
     return *this;
 }
+#endif
 
 // ### Qt 6: Consider whether this function shouldn't be removed See task 202871.
 /*!
@@ -6892,6 +6807,7 @@ QString QString::asprintf(const char *cformat, ...)
     return s;
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
     \obsolete
 
@@ -6901,6 +6817,7 @@ QString &QString::vsprintf(const char *cformat, va_list ap)
 {
     return *this = vasprintf(cformat, ap);
 }
+#endif
 
 static void append_utf8(QString &qs, const char *cs, int len)
 {
@@ -6910,7 +6827,7 @@ static void append_utf8(QString &qs, const char *cs, int len)
     qs.resize(newEnd - qs.constData());
 }
 
-static uint parse_flag_characters(const char * &c) Q_DECL_NOTHROW
+static uint parse_flag_characters(const char * &c) noexcept
 {
     uint flags = QLocaleData::ZeroPadExponent;
     while (true) {
@@ -6947,7 +6864,7 @@ static int parse_field_width(const char * &c)
 
 enum LengthMod { lm_none, lm_hh, lm_h, lm_l, lm_ll, lm_L, lm_j, lm_z, lm_t };
 
-static inline bool can_consume(const char * &c, char ch) Q_DECL_NOTHROW
+static inline bool can_consume(const char * &c, char ch) noexcept
 {
     if (*c == ch) {
         ++c;
@@ -6956,7 +6873,7 @@ static inline bool can_consume(const char * &c, char ch) Q_DECL_NOTHROW
     return false;
 }
 
-static LengthMod parse_length_modifier(const char * &c) Q_DECL_NOTHROW
+static LengthMod parse_length_modifier(const char * &c) noexcept
 {
     switch (*c++) {
     case 'h': return can_consume(c, 'h') ? lm_hh : lm_h;
@@ -7781,10 +7698,10 @@ static ResultList splitString(const StringSource &source, const QChar *sep,
                               QString::SplitBehavior behavior, Qt::CaseSensitivity cs, const int separatorSize)
 {
     ResultList list;
-    int start = 0;
-    int end;
-    int extra = 0;
-    while ((end = qFindString(source.constData(), source.size(), start + extra, sep, separatorSize, cs)) != -1) {
+    typename StringSource::size_type start = 0;
+    typename StringSource::size_type end;
+    typename StringSource::size_type extra = 0;
+    while ((end = QtPrivate::findString(QStringView(source.constData(), source.size()), start + extra, QStringView(sep, separatorSize), cs)) != -1) {
         if (start != end || behavior == QString::KeepEmptyParts)
             list.append(source.mid(start, end - start));
         start = end + separatorSize;
@@ -8919,7 +8836,7 @@ namespace {
 struct Part
 {
     Part() : stringRef(), number(0) {}
-    Part(const QString &s, int pos, int len, int num = -1) Q_DECL_NOTHROW
+    Part(const QString &s, int pos, int len, int num = -1) noexcept
         : stringRef(&s, pos, len), number(num) {}
 
     QStringRef stringRef;
@@ -9586,6 +9503,25 @@ QString &QString::setRawData(const QChar *unicode, int size)
 */
 
 /*!
+    \fn int QLatin1String::indexOf(QStringView str, int from, Qt::CaseSensitivity cs) const
+    \fn int QLatin1String::indexOf(QLatin1String l1, int from Qt::CaseSensitivity cs) const
+    \fn int QLatin1String::indexOf(QChar c, int from, Qt::CaseSensitivity cs) const
+    \since 5.14
+
+    Returns the index position of the first occurrence of the string-view \a str,
+    Latin-1 string \a l1, or character \a ch, respectively, in this Latin-1 string,
+    searching forward from index position \a from. Returns -1 if \a str is not found.
+
+    If \a cs is Qt::CaseSensitive (default), the search is case
+    sensitive; otherwise the search is case insensitive.
+
+    If \a from is -1, the search starts at the last character; if it is
+    -2, at the next to last character and so on.
+
+    \sa QString::indexOf()
+*/
+
+/*!
     \fn QLatin1String::const_iterator QLatin1String::begin() const
     \since 5.10
 
@@ -10488,7 +10424,7 @@ QString QStringRef::toString() const {
    Returns \c true if string reference \a s1 is lexically equal to string reference \a s2; otherwise
    returns \c false.
 */
-bool operator==(const QStringRef &s1,const QStringRef &s2) Q_DECL_NOTHROW
+bool operator==(const QStringRef &s1,const QStringRef &s2) noexcept
 {
     return s1.size() == s2.size() && qt_compare_strings(s1, s2, Qt::CaseSensitive) == 0;
 }
@@ -10498,7 +10434,7 @@ bool operator==(const QStringRef &s1,const QStringRef &s2) Q_DECL_NOTHROW
    Returns \c true if string \a s1 is lexically equal to string reference \a s2; otherwise
    returns \c false.
 */
-bool operator==(const QString &s1,const QStringRef &s2) Q_DECL_NOTHROW
+bool operator==(const QString &s1,const QStringRef &s2) noexcept
 {
     return s1.size() == s2.size() && qt_compare_strings(s1, s2, Qt::CaseSensitive) == 0;
 }
@@ -10508,7 +10444,7 @@ bool operator==(const QString &s1,const QStringRef &s2) Q_DECL_NOTHROW
    Returns \c true if string  \a s1 is lexically equal to string reference \a s2; otherwise
    returns \c false.
 */
-bool operator==(QLatin1String s1, const QStringRef &s2) Q_DECL_NOTHROW
+bool operator==(QLatin1String s1, const QStringRef &s2) noexcept
 {
     if (s1.size() != s2.size())
         return false;
@@ -10527,7 +10463,7 @@ bool operator==(QLatin1String s1, const QStringRef &s2) Q_DECL_NOTHROW
     expect. Consider sorting user-interface strings using the
     QString::localeAwareCompare() function.
 */
-bool operator<(const QStringRef &s1,const QStringRef &s2) Q_DECL_NOTHROW
+bool operator<(const QStringRef &s1,const QStringRef &s2) noexcept
 {
     return qt_compare_strings(s1, s2, Qt::CaseSensitive) < 0;
 }
@@ -11140,6 +11076,7 @@ QStringRef QString::midRef(int position, int n) const
     \sa QString::chop(), truncate()
 */
 
+#if QT_STRINGVIEW_LEVEL < 2
 /*!
   \since 4.8
 
@@ -11157,8 +11094,28 @@ QStringRef QString::midRef(int position, int n) const
 */
 int QStringRef::indexOf(const QString &str, int from, Qt::CaseSensitivity cs) const
 {
-    return qFindString(unicode(), length(), from, str.unicode(), str.length(), cs);
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), length()), from, QStringView(str.unicode(), str.length()), cs));
 }
+#endif // QT_STRINGVIEW_LEVEL < 2
+
+/*!
+    \fn int QStringRef::indexOf(QStringView str, int from, Qt::CaseSensitivity cs) const
+    \since 5.14
+    \overload indexOf()
+
+    Returns the index position of the first occurrence of the string view \a str
+    in this string reference, searching forward from index position \a from.
+    Returns -1 if \a str is not found.
+
+    If \a cs is Qt::CaseSensitive (default), the search is case
+    sensitive; otherwise the search is case insensitive.
+
+    If \a from is -1, the search starts at the last character; if it is
+    -2, at the next to last character and so on.
+
+    \sa QString::indexOf(), QStringView::indexOf(), lastIndexOf(), contains(), count()
+*/
 
 /*!
     \since 4.8
@@ -11172,7 +11129,8 @@ int QStringRef::indexOf(const QString &str, int from, Qt::CaseSensitivity cs) co
 */
 int QStringRef::indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 {
-    return findChar(unicode(), length(), ch, from, cs);
+    // ### Qt6: qsize
+    return int(qFindChar(QStringView(unicode(), length()), ch, from, cs));
 }
 
 /*!
@@ -11192,9 +11150,11 @@ int QStringRef::indexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 */
 int QStringRef::indexOf(QLatin1String str, int from, Qt::CaseSensitivity cs) const
 {
-    return qt_find_latin1_string(unicode(), size(), str, from, cs);
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), size()), from, str, cs));
 }
 
+#if QT_STRINGVIEW_LEVEL < 2
 /*!
     \since 4.8
 
@@ -11211,8 +11171,10 @@ int QStringRef::indexOf(QLatin1String str, int from, Qt::CaseSensitivity cs) con
 */
 int QStringRef::indexOf(const QStringRef &str, int from, Qt::CaseSensitivity cs) const
 {
-    return qFindString(unicode(), size(), from, str.unicode(), str.size(), cs);
+    // ### Qt6: qsize
+    return int(QtPrivate::findString(QStringView(unicode(), size()), from, QStringView(str.unicode(), str.size()), cs));
 }
+#endif // QT_STRINGVIEW_LEVEL < 2
 
 /*!
   \since 4.8
@@ -11244,7 +11206,8 @@ int QStringRef::lastIndexOf(const QString &str, int from, Qt::CaseSensitivity cs
 */
 int QStringRef::lastIndexOf(QChar ch, int from, Qt::CaseSensitivity cs) const
 {
-    return qt_last_index_of(unicode(), size(), ch, from, cs);
+    // ### Qt6: qsize
+    return int(qt_last_index_of(QStringView(unicode(), size()), ch, from, cs));
 }
 
 template<typename T>
@@ -11320,7 +11283,8 @@ int QStringRef::lastIndexOf(const QStringRef &str, int from, Qt::CaseSensitivity
 */
 int QStringRef::count(const QString &str, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), str.unicode(), str.size(), cs);
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), QStringView(str.unicode(), str.size()), cs));
 }
 
 /*!
@@ -11337,7 +11301,8 @@ int QStringRef::count(const QString &str, Qt::CaseSensitivity cs) const
 */
 int QStringRef::count(QChar ch, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), ch, cs);
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), ch, cs));
 }
 
 /*!
@@ -11354,7 +11319,8 @@ int QStringRef::count(QChar ch, Qt::CaseSensitivity cs) const
 */
 int QStringRef::count(const QStringRef &str, Qt::CaseSensitivity cs) const
 {
-    return qt_string_count(unicode(), size(), str.unicode(), str.size(), cs);
+    // ### Qt6: qsize
+    return int(qt_string_count(QStringView(unicode(), size()), QStringView(str.unicode(), str.size()), cs));
 }
 
 /*!
@@ -11591,16 +11557,16 @@ bool QStringRef::endsWith(const QStringRef &str, Qt::CaseSensitivity cs) const
     \sa indexOf(), count()
 */
 
-static inline int qt_last_index_of(const QChar *haystack, int haystackLen, QChar needle,
-                                   int from, Qt::CaseSensitivity cs)
+static inline qsizetype qt_last_index_of(QStringView haystack, QChar needle,
+                                   qsizetype from, Qt::CaseSensitivity cs)
 {
-    ushort c = needle.unicode();
     if (from < 0)
-        from += haystackLen;
-    if (uint(from) >= uint(haystackLen))
+        from += haystack.size();
+    if (std::size_t(from) >= std::size_t(haystack.size()))
         return -1;
     if (from >= 0) {
-        const ushort *b = reinterpret_cast<const ushort*>(haystack);
+        ushort c = needle.unicode();
+        const ushort *b = reinterpret_cast<const ushort*>(haystack.data());
         const ushort *n = b + from;
         if (cs == Qt::CaseSensitive) {
             for (; n >= b; --n)
@@ -11618,30 +11584,28 @@ static inline int qt_last_index_of(const QChar *haystack, int haystackLen, QChar
 
 }
 
-static inline int qt_string_count(const QChar *haystack, int haystackLen,
-                                  const QChar *needle, int needleLen,
-                                  Qt::CaseSensitivity cs)
+static inline qsizetype qt_string_count(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs)
 {
-    int num = 0;
-    int i = -1;
-    if (haystackLen > 500 && needleLen > 5) {
-        QStringMatcher matcher(needle, needleLen, cs);
-        while ((i = matcher.indexIn(haystack, haystackLen, i + 1)) != -1)
+    qsizetype num = 0;
+    qsizetype i = -1;
+    if (haystack.size() > 500 && needle.size() > 5) {
+        QStringMatcher matcher(needle, cs);
+        while ((i = matcher.indexIn(haystack, i + 1)) != -1)
             ++num;
     } else {
-        while ((i = qFindString(haystack, haystackLen, i + 1, needle, needleLen, cs)) != -1)
+        while ((i = QtPrivate::findString(haystack, i + 1, needle, cs)) != -1)
             ++num;
     }
     return num;
 }
 
-static inline int qt_string_count(const QChar *unicode, int size, QChar ch,
+static inline qsizetype qt_string_count(QStringView haystack, QChar ch,
                                   Qt::CaseSensitivity cs)
 {
     ushort c = ch.unicode();
-    int num = 0;
-    const ushort *b = reinterpret_cast<const ushort*>(unicode);
-    const ushort *i = b + size;
+    qsizetype num = 0;
+    const ushort *b = reinterpret_cast<const ushort*>(haystack.data());
+    const ushort *i = b + haystack.size();
     if (cs == Qt::CaseSensitive) {
         while (i != b)
             if (*--i == c)
@@ -11655,24 +11619,8 @@ static inline int qt_string_count(const QChar *unicode, int size, QChar ch,
     return num;
 }
 
-static inline int qt_find_latin1_string(const QChar *haystack, int size,
-                                        QLatin1String needle,
-                                        int from, Qt::CaseSensitivity cs)
-{
-    if (size < needle.size())
-        return -1;
-
-    const char *latin1 = needle.latin1();
-    int len = needle.size();
-    QVarLengthArray<ushort> s(len);
-    qt_from_latin1(s.data(), latin1, len);
-
-    return qFindString(haystack, size, from,
-                       reinterpret_cast<const QChar*>(s.constData()), len, cs);
-}
-
 template <typename Haystack, typename Needle>
-bool qt_starts_with_impl(Haystack haystack, Needle needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool qt_starts_with_impl(Haystack haystack, Needle needle, Qt::CaseSensitivity cs) noexcept
 {
     if (haystack.isNull())
         return needle.isNull(); // historical behavior, consider changing in ### Qt 6.
@@ -11724,28 +11672,28 @@ static inline bool qt_starts_with(QStringView haystack, QChar needle, Qt::CaseSe
     \sa QtPrivate::endsWith(), QString::endsWith(), QStringView::endsWith(), QLatin1String::endsWith()
 */
 
-bool QtPrivate::startsWith(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::startsWith(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_starts_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::startsWith(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::startsWith(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_starts_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::startsWith(QLatin1String haystack, QStringView needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::startsWith(QLatin1String haystack, QStringView needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_starts_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::startsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::startsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_starts_with_impl(haystack, needle, cs);
 }
 
 template <typename Haystack, typename Needle>
-bool qt_ends_with_impl(Haystack haystack, Needle needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool qt_ends_with_impl(Haystack haystack, Needle needle, Qt::CaseSensitivity cs) noexcept
 {
     if (haystack.isNull())
         return needle.isNull(); // historical behavior, consider changing in ### Qt 6.
@@ -11797,27 +11745,168 @@ static inline bool qt_ends_with(QStringView haystack, QChar needle, Qt::CaseSens
     \sa QtPrivate::startsWith(), QString::endsWith(), QStringView::endsWith(), QLatin1String::endsWith()
 */
 
-bool QtPrivate::endsWith(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::endsWith(QStringView haystack, QStringView needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_ends_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::endsWith(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::endsWith(QStringView haystack, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_ends_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::endsWith(QLatin1String haystack, QStringView needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::endsWith(QLatin1String haystack, QStringView needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_ends_with_impl(haystack, needle, cs);
 }
 
-bool QtPrivate::endsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+bool QtPrivate::endsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
 {
     return qt_ends_with_impl(haystack, needle, cs);
 }
 
 /*!
+    \internal
+
+    Returns the index position of the first occurrence of the
+    character \a ch in the string given by \a str and \a len,
+    searching forward from index
+    position \a from. Returns -1 if \a ch could not be found.
+*/
+
+static inline qsizetype qFindChar(QStringView str, QChar ch, qsizetype from, Qt::CaseSensitivity cs) noexcept
+{
+    if (from < 0)
+        from = qMax(from + str.size(), qsizetype(0));
+    if (from < str.size()) {
+        const ushort *s = (const ushort *)str.data();
+        ushort c = ch.unicode();
+        const ushort *n = s + from;
+        const ushort *e = s + str.size();
+        if (cs == Qt::CaseSensitive) {
+            n = QtPrivate::qustrchr(QStringView(n, e), c);
+            if (n != e)
+                return n - s;
+        } else {
+            c = foldCase(c);
+            --n;
+            while (++n != e)
+                if (foldCase(*n) == c)
+                    return n - s;
+        }
+    }
+    return -1;
+}
+
+qsizetype QtPrivate::findString(QStringView haystack0, qsizetype from, QStringView needle0, Qt::CaseSensitivity cs) noexcept
+{
+    const qsizetype l = haystack0.size();
+    const qsizetype sl = needle0.size();
+    if (from < 0)
+        from += l;
+    if (std::size_t(sl + from) > std::size_t(l))
+        return -1;
+    if (!sl)
+        return from;
+    if (!l)
+        return -1;
+
+    if (sl == 1)
+        return qFindChar(haystack0, needle0[0], from, cs);
+
+    /*
+        We use the Boyer-Moore algorithm in cases where the overhead
+        for the skip table should pay off, otherwise we use a simple
+        hash function.
+    */
+    if (l > 500 && sl > 5)
+        return qFindStringBoyerMoore(haystack0, from, needle0, cs);
+
+    auto sv = [sl](const ushort *v) { return QStringView(v, sl); };
+    /*
+        We use some hashing for efficiency's sake. Instead of
+        comparing strings, we compare the hash value of str with that
+        of a part of this QString. Only if that matches, we call
+        qt_string_compare().
+    */
+    const ushort *needle = (const ushort *)needle0.data();
+    const ushort *haystack = (const ushort *)(haystack0.data()) + from;
+    const ushort *end = (const ushort *)(haystack0.data()) + (l - sl);
+    const std::size_t sl_minus_1 = sl - 1;
+    std::size_t hashNeedle = 0, hashHaystack = 0;
+    qsizetype idx;
+
+    if (cs == Qt::CaseSensitive) {
+        for (idx = 0; idx < sl; ++idx) {
+            hashNeedle = ((hashNeedle<<1) + needle[idx]);
+            hashHaystack = ((hashHaystack<<1) + haystack[idx]);
+        }
+        hashHaystack -= haystack[sl_minus_1];
+
+        while (haystack <= end) {
+            hashHaystack += haystack[sl_minus_1];
+            if (hashHaystack == hashNeedle
+                 && qt_compare_strings(needle0, sv(haystack), Qt::CaseSensitive) == 0)
+                return haystack - (const ushort *)haystack0.data();
+
+            REHASH(*haystack);
+            ++haystack;
+        }
+    } else {
+        const ushort *haystack_start = (const ushort *)haystack0.data();
+        for (idx = 0; idx < sl; ++idx) {
+            hashNeedle = (hashNeedle<<1) + foldCase(needle + idx, needle);
+            hashHaystack = (hashHaystack<<1) + foldCase(haystack + idx, haystack_start);
+        }
+        hashHaystack -= foldCase(haystack + sl_minus_1, haystack_start);
+
+        while (haystack <= end) {
+            hashHaystack += foldCase(haystack + sl_minus_1, haystack_start);
+            if (hashHaystack == hashNeedle
+                 && qt_compare_strings(needle0, sv(haystack), Qt::CaseInsensitive) == 0)
+                return haystack - (const ushort *)haystack0.data();
+
+            REHASH(foldCase(haystack, haystack_start));
+            ++haystack;
+        }
+    }
+    return -1;
+}
+
+qsizetype QtPrivate::findString(QStringView haystack, qsizetype from, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
+{
+    if (haystack.size() < needle.size())
+        return -1;
+
+    QVarLengthArray<ushort> s(needle.size());
+    qt_from_latin1(s.data(), needle.latin1(), needle.size());
+    return QtPrivate::findString(haystack, from, QStringView(reinterpret_cast<const QChar*>(s.constData()), s.size()), cs);
+}
+
+qsizetype QtPrivate::findString(QLatin1String haystack, qsizetype from, QStringView needle, Qt::CaseSensitivity cs) noexcept
+{
+    if (haystack.size() < needle.size())
+        return -1;
+
+    QVarLengthArray<ushort> s(haystack.size());
+    qt_from_latin1(s.data(), haystack.latin1(), haystack.size());
+    return QtPrivate::findString(QStringView(reinterpret_cast<const QChar*>(s.constData()), s.size()), from, needle, cs);
+}
+
+qsizetype QtPrivate::findString(QLatin1String haystack, qsizetype from, QLatin1String needle, Qt::CaseSensitivity cs) noexcept
+{
+    if (haystack.size() < needle.size())
+        return -1;
+
+    QVarLengthArray<ushort> h(haystack.size());
+    qt_from_latin1(h.data(), haystack.latin1(), haystack.size());
+    QVarLengthArray<ushort> n(needle.size());
+    qt_from_latin1(n.data(), needle.latin1(), needle.size());
+    return QtPrivate::findString(QStringView(reinterpret_cast<const QChar*>(h.constData()), h.size()), from,
+                                 QStringView(reinterpret_cast<const QChar*>(n.constData()), n.size()), cs);
+}
+
+/*!
     \since 4.8
 
     Returns a Latin-1 representation of the string as a QByteArray.
@@ -12269,7 +12358,7 @@ QString QString::toHtmlEscaped() const
 /*!
     \internal
  */
-void QAbstractConcatenable::appendLatin1To(const char *a, int len, QChar *out) Q_DECL_NOTHROW
+void QAbstractConcatenable::appendLatin1To(const char *a, int len, QChar *out) noexcept
 {
     qt_from_latin1(reinterpret_cast<ushort *>(out), a, uint(len));
 }
diff --git a/src/corelib/tools/qstring.h b/src/corelib/tools/qstring.h
index b138c3f140..9d75b0f357 100644
--- a/src/corelib/tools/qstring.h
+++ b/src/corelib/tools/qstring.h
@@ -2,6 +2,7 @@
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
+** Copyright (C) 2019 Mail.ru Group.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -91,19 +92,19 @@ template <typename T> class QVector;
 class QLatin1String
 {
 public:
-    Q_DECL_CONSTEXPR inline QLatin1String() Q_DECL_NOTHROW : m_size(0), m_data(nullptr) {}
-    Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s) Q_DECL_NOTHROW : m_size(s ? int(strlen(s)) : 0), m_data(s) {}
+    Q_DECL_CONSTEXPR inline QLatin1String() noexcept : m_size(0), m_data(nullptr) {}
+    Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s) noexcept : m_size(s ? int(strlen(s)) : 0), m_data(s) {}
     Q_DECL_CONSTEXPR explicit QLatin1String(const char *f, const char *l)
         : QLatin1String(f, int(l - f)) {}
-    Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s, int sz) Q_DECL_NOTHROW : m_size(sz), m_data(s) {}
-    inline explicit QLatin1String(const QByteArray &s) Q_DECL_NOTHROW : m_size(int(qstrnlen(s.constData(), s.size()))), m_data(s.constData()) {}
+    Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s, int sz) noexcept : m_size(sz), m_data(s) {}
+    inline explicit QLatin1String(const QByteArray &s) noexcept : m_size(int(qstrnlen(s.constData(), s.size()))), m_data(s.constData()) {}
 
-    Q_DECL_CONSTEXPR const char *latin1() const Q_DECL_NOTHROW { return m_data; }
-    Q_DECL_CONSTEXPR int size() const Q_DECL_NOTHROW { return m_size; }
-    Q_DECL_CONSTEXPR const char *data() const Q_DECL_NOTHROW { return m_data; }
+    Q_DECL_CONSTEXPR const char *latin1() const noexcept { return m_data; }
+    Q_DECL_CONSTEXPR int size() const noexcept { return m_size; }
+    Q_DECL_CONSTEXPR const char *data() const noexcept { return m_data; }
 
-    Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW { return !data(); }
-    Q_DECL_CONSTEXPR bool isEmpty() const Q_DECL_NOTHROW { return !size(); }
+    Q_DECL_CONSTEXPR bool isNull() const noexcept { return !data(); }
+    Q_DECL_CONSTEXPR bool isEmpty() const noexcept { return !size(); }
 
     Q_DECL_CONSTEXPR QLatin1Char at(int i) const
     { return Q_ASSERT(i >= 0), Q_ASSERT(i < size()), QLatin1Char(m_data[i]); }
@@ -112,24 +113,31 @@ public:
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QLatin1Char front() const { return at(0); }
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QLatin1Char back() const { return at(size() - 1); }
 
-    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::startsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::startsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool startsWith(QChar c) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool startsWith(QChar c) const noexcept
     { return !isEmpty() && front() == c; }
-    Q_REQUIRED_RESULT inline bool startsWith(QChar c, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool startsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
     { return QtPrivate::startsWith(*this, QStringView(&c, 1), cs); }
 
-    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::endsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::endsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool endsWith(QChar c) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool endsWith(QChar c) const noexcept
     { return !isEmpty() && back() == c; }
-    Q_REQUIRED_RESULT inline bool endsWith(QChar c, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool endsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
     { return QtPrivate::endsWith(*this, QStringView(&c, 1), cs); }
 
+    Q_REQUIRED_RESULT int indexOf(QStringView s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return int(QtPrivate::findString(*this, from, s, cs)); } // ### Qt6: qsize
+    Q_REQUIRED_RESULT int indexOf(QLatin1String s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return int(QtPrivate::findString(*this, from, s, cs)); } // ### Qt6: qsize
+    Q_REQUIRED_RESULT inline int indexOf(QChar c, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return int(QtPrivate::findString(*this, from, QStringView(&c, 1), cs)); } // ### Qt6: qsize
+
     using value_type = const char;
     using reference = value_type&;
     using const_reference = reference;
@@ -138,18 +146,18 @@ public:
     using difference_type = int; // violates Container concept requirements
     using size_type = int;       // violates Container concept requirements
 
-    Q_DECL_CONSTEXPR const_iterator begin() const Q_DECL_NOTHROW { return data(); }
-    Q_DECL_CONSTEXPR const_iterator cbegin() const Q_DECL_NOTHROW { return data(); }
-    Q_DECL_CONSTEXPR const_iterator end() const Q_DECL_NOTHROW { return data() + size(); }
-    Q_DECL_CONSTEXPR const_iterator cend() const Q_DECL_NOTHROW { return data() + size(); }
+    Q_DECL_CONSTEXPR const_iterator begin() const noexcept { return data(); }
+    Q_DECL_CONSTEXPR const_iterator cbegin() const noexcept { return data(); }
+    Q_DECL_CONSTEXPR const_iterator end() const noexcept { return data() + size(); }
+    Q_DECL_CONSTEXPR const_iterator cend() const noexcept { return data() + size(); }
 
     using reverse_iterator = std::reverse_iterator<iterator>;
     using const_reverse_iterator = reverse_iterator;
 
-    const_reverse_iterator rbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
 
     Q_DECL_CONSTEXPR QLatin1String mid(int pos) const
     { return Q_ASSERT(pos >= 0), Q_ASSERT(pos <= size()), QLatin1String(m_data + pos, m_size - pos); }
@@ -167,14 +175,14 @@ public:
     Q_DECL_RELAXED_CONSTEXPR void truncate(int n)
     { Q_ASSERT(n >= 0); Q_ASSERT(n <= size()); m_size = n; }
 
-    Q_REQUIRED_RESULT QLatin1String trimmed() const Q_DECL_NOTHROW { return QtPrivate::trimmed(*this); }
+    Q_REQUIRED_RESULT QLatin1String trimmed() const noexcept { return QtPrivate::trimmed(*this); }
 
-    inline bool operator==(const QString &s) const Q_DECL_NOTHROW;
-    inline bool operator!=(const QString &s) const Q_DECL_NOTHROW;
-    inline bool operator>(const QString &s) const Q_DECL_NOTHROW;
-    inline bool operator<(const QString &s) const Q_DECL_NOTHROW;
-    inline bool operator>=(const QString &s) const Q_DECL_NOTHROW;
-    inline bool operator<=(const QString &s) const Q_DECL_NOTHROW;
+    inline bool operator==(const QString &s) const noexcept;
+    inline bool operator!=(const QString &s) const noexcept;
+    inline bool operator>(const QString &s) const noexcept;
+    inline bool operator<(const QString &s) const noexcept;
+    inline bool operator>=(const QString &s) const noexcept;
+    inline bool operator<=(const QString &s) const noexcept;
 
 #if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
     inline QT_ASCII_CAST_WARN bool operator==(const char *s) const;
@@ -204,38 +212,38 @@ typedef QLatin1String QLatin1Literal;
 //
 // QLatin1String inline implementations
 //
-inline bool QtPrivate::isLatin1(QLatin1String) Q_DECL_NOTHROW
+inline bool QtPrivate::isLatin1(QLatin1String) noexcept
 { return true; }
 
 //
 // QStringView members that require QLatin1String:
 //
-bool QStringView::startsWith(QLatin1String s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+bool QStringView::startsWith(QLatin1String s, Qt::CaseSensitivity cs) const noexcept
 { return QtPrivate::startsWith(*this, s, cs); }
-bool QStringView::endsWith(QLatin1String s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+bool QStringView::endsWith(QLatin1String s, Qt::CaseSensitivity cs) const noexcept
 { return QtPrivate::endsWith(*this, s, cs); }
+qsizetype QStringView::indexOf(QLatin1String s, qsizetype from, Qt::CaseSensitivity cs) const noexcept
+{ return QtPrivate::findString(*this, from, s, cs); }
 
 class Q_CORE_EXPORT QString
 {
 public:
     typedef QStringData Data;
 
-    inline QString() Q_DECL_NOTHROW;
+    inline QString() noexcept;
     explicit QString(const QChar *unicode, int size = -1);
     QString(QChar c);
     QString(int size, QChar c);
     inline QString(QLatin1String latin1);
-    inline QString(const QString &) Q_DECL_NOTHROW;
+    inline QString(const QString &) noexcept;
     inline ~QString();
     QString &operator=(QChar c);
-    QString &operator=(const QString &) Q_DECL_NOTHROW;
+    QString &operator=(const QString &) noexcept;
     QString &operator=(QLatin1String latin1);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QString(QString && other) Q_DECL_NOTHROW : d(other.d) { other.d = Data::sharedNull(); }
-    inline QString &operator=(QString &&other) Q_DECL_NOTHROW
+    inline QString(QString && other) noexcept : d(other.d) { other.d = Data::sharedNull(); }
+    inline QString &operator=(QString &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    inline void swap(QString &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    inline void swap(QString &other) noexcept { qSwap(d, other.d); }
     inline int size() const { return d->size; }
     inline int count() const { return d->size; }
     inline int length() const;
@@ -320,15 +328,23 @@ public:
                 const QString &a4, const QString &a5, const QString &a6,
                 const QString &a7, const QString &a8, const QString &a9) const;
 
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use vasprintf(), arg() or QTextStream instead")
     QString &vsprintf(const char *format, va_list ap) Q_ATTRIBUTE_FORMAT_PRINTF(2, 0);
+    QT_DEPRECATED_X("Use asprintf(), arg() or QTextStream instead")
     QString &sprintf(const char *format, ...) Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
+#endif
     static QString vasprintf(const char *format, va_list ap) Q_ATTRIBUTE_FORMAT_PRINTF(1, 0);
     static QString asprintf(const char *format, ...) Q_ATTRIBUTE_FORMAT_PRINTF(1, 2);
 
     int indexOf(QChar c, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
-    int indexOf(const QString &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int indexOf(QLatin1String s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
+#if QT_STRINGVIEW_LEVEL < 2
+    int indexOf(const QString &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int indexOf(const QStringRef &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
+#endif
+    Q_REQUIRED_RESULT int indexOf(QStringView s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return int(QtPrivate::findString(*this, from, s, cs)); } // ### Qt6: qsize
     int lastIndexOf(QChar c, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int lastIndexOf(const QString &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int lastIndexOf(QLatin1String s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -395,7 +411,7 @@ public:
     bool startsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool startsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
 #endif
-    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::startsWith(*this, s, cs); }
     bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -404,7 +420,7 @@ public:
     bool endsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool endsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
 #endif
-    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::endsWith(*this, s, cs); }
     bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -609,25 +625,25 @@ public:
     inline QString &setUtf16(const ushort *utf16, int size);
 
 #if QT_STRINGVIEW_LEVEL < 2
-    int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    inline int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
+    int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    inline int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
 #endif
-    int compare(QLatin1String other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    inline int compare(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
+    int compare(QLatin1String other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    inline int compare(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
 
     static inline int compare(const QString &s1, const QString &s2,
-                              Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW
+                              Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept
     { return s1.compare(s2, cs); }
 
     static inline int compare(const QString &s1, QLatin1String s2,
-                              Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW
+                              Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept
     { return s1.compare(s2, cs); }
     static inline int compare(QLatin1String s1, const QString &s2,
-                              Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW
+                              Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept
     { return -s2.compare(s1, cs); }
 
     static int compare(const QString &s1, const QStringRef &s2,
-                       Qt::CaseSensitivity = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                       Qt::CaseSensitivity = Qt::CaseSensitive) noexcept;
 
     int localeAwareCompare(const QString& s) const;
     static int localeAwareCompare(const QString& s1, const QString& s2)
@@ -667,19 +683,19 @@ public:
     static QString number(qulonglong, int base=10);
     static QString number(double, char f='g', int prec=6);
 
-    friend Q_CORE_EXPORT bool operator==(const QString &s1, const QString &s2) Q_DECL_NOTHROW;
-    friend Q_CORE_EXPORT bool operator<(const QString &s1, const QString &s2) Q_DECL_NOTHROW;
-    friend inline bool operator>(const QString &s1, const QString &s2) Q_DECL_NOTHROW { return s2 < s1; }
-    friend inline bool operator!=(const QString &s1, const QString &s2) Q_DECL_NOTHROW { return !(s1 == s2); }
-    friend inline bool operator<=(const QString &s1, const QString &s2) Q_DECL_NOTHROW { return !(s1 > s2); }
-    friend inline bool operator>=(const QString &s1, const QString &s2) Q_DECL_NOTHROW { return !(s1 < s2); }
+    friend Q_CORE_EXPORT bool operator==(const QString &s1, const QString &s2) noexcept;
+    friend Q_CORE_EXPORT bool operator<(const QString &s1, const QString &s2) noexcept;
+    friend inline bool operator>(const QString &s1, const QString &s2) noexcept { return s2 < s1; }
+    friend inline bool operator!=(const QString &s1, const QString &s2) noexcept { return !(s1 == s2); }
+    friend inline bool operator<=(const QString &s1, const QString &s2) noexcept { return !(s1 > s2); }
+    friend inline bool operator>=(const QString &s1, const QString &s2) noexcept { return !(s1 < s2); }
 
-    bool operator==(QLatin1String s) const Q_DECL_NOTHROW;
-    bool operator<(QLatin1String s) const Q_DECL_NOTHROW;
-    bool operator>(QLatin1String s) const Q_DECL_NOTHROW;
-    inline bool operator!=(QLatin1String s) const Q_DECL_NOTHROW { return !operator==(s); }
-    inline bool operator<=(QLatin1String s) const Q_DECL_NOTHROW { return !operator>(s); }
-    inline bool operator>=(QLatin1String s) const Q_DECL_NOTHROW { return !operator<(s); }
+    bool operator==(QLatin1String s) const noexcept;
+    bool operator<(QLatin1String s) const noexcept;
+    bool operator>(QLatin1String s) const noexcept;
+    inline bool operator!=(QLatin1String s) const noexcept { return !operator==(s); }
+    inline bool operator<=(QLatin1String s) const noexcept { return !operator>(s); }
+    inline bool operator>=(QLatin1String s) const noexcept { return !operator<(s); }
 
     // ASCII compatibility
 #if defined(QT_RESTRICTED_CAST_FROM_ASCII)
@@ -840,15 +856,15 @@ private:
 
     Data *d;
 
-    friend inline bool operator==(QChar, const QString &) Q_DECL_NOTHROW;
-    friend inline bool operator< (QChar, const QString &) Q_DECL_NOTHROW;
-    friend inline bool operator> (QChar, const QString &) Q_DECL_NOTHROW;
-    friend inline bool operator==(QChar, const QStringRef &) Q_DECL_NOTHROW;
-    friend inline bool operator< (QChar, const QStringRef &) Q_DECL_NOTHROW;
-    friend inline bool operator> (QChar, const QStringRef &) Q_DECL_NOTHROW;
-    friend inline bool operator==(QChar, QLatin1String) Q_DECL_NOTHROW;
-    friend inline bool operator< (QChar, QLatin1String) Q_DECL_NOTHROW;
-    friend inline bool operator> (QChar, QLatin1String) Q_DECL_NOTHROW;
+    friend inline bool operator==(QChar, const QString &) noexcept;
+    friend inline bool operator< (QChar, const QString &) noexcept;
+    friend inline bool operator> (QChar, const QString &) noexcept;
+    friend inline bool operator==(QChar, const QStringRef &) noexcept;
+    friend inline bool operator< (QChar, const QStringRef &) noexcept;
+    friend inline bool operator> (QChar, const QStringRef &) noexcept;
+    friend inline bool operator==(QChar, QLatin1String) noexcept;
+    friend inline bool operator< (QChar, QLatin1String) noexcept;
+    friend inline bool operator> (QChar, QLatin1String) noexcept;
 
     void reallocData(uint alloc, bool grow = false);
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
@@ -857,13 +873,13 @@ private:
     QString multiArg(int numArgs, const QString **args) const;
     static int compare_helper(const QChar *data1, int length1,
                               const QChar *data2, int length2,
-                              Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                              Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
     static int compare_helper(const QChar *data1, int length1,
                               const char *data2, int length2,
                               Qt::CaseSensitivity cs = Qt::CaseSensitive);
     static int compare_helper(const QChar *data1, int length1,
                               QLatin1String s2,
-                              Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                              Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
     static int localeAwareCompare_helper(const QChar *data1, int length1,
                                          const QChar *data2, int length2);
     static QString toLower_helper(const QString &str);
@@ -952,7 +968,7 @@ inline bool QString::isDetached() const
 { return !d->ref.isShared(); }
 inline void QString::clear()
 { if (!isNull()) *this = QString(); }
-inline QString::QString(const QString &other) Q_DECL_NOTHROW : d(other.d)
+inline QString::QString(const QString &other) noexcept : d(other.d)
 { Q_ASSERT(&other != this); d->ref.ref(); }
 inline int QString::capacity() const
 { return d->alloc ? d->alloc - 1 : 0; }
@@ -1017,12 +1033,7 @@ QT_WARNING_DISABLE_INTEL(111)   // "statement is unreachable"
 
 inline int QString::toWCharArray(wchar_t *array) const
 {
-    if (sizeof(wchar_t) == sizeof(QChar)) {
-        memcpy(array, d->data(), sizeof(QChar) * size());
-        return size();
-    } else {
-        return toUcs4_helper(d->data(), size(), reinterpret_cast<uint *>(array));
-    }
+    return QStringView(*this).toWCharArray(array);
 }
 
 QT_WARNING_POP
@@ -1129,7 +1140,7 @@ inline void QCharRef::setRow(uchar arow) { QChar(*this).setRow(arow); }
 inline void QCharRef::setCell(uchar acell) { QChar(*this).setCell(acell); }
 
 
-inline QString::QString() Q_DECL_NOTHROW : d(Data::sharedNull()) {}
+inline QString::QString() noexcept : d(Data::sharedNull()) {}
 inline QString::~QString() { if (!d->ref.deref()) Data::deallocate(d); }
 
 inline void QString::reserve(int asize)
@@ -1201,34 +1212,34 @@ QT_DEPRECATED_X("use !QString::isNull()")
 inline bool operator!=(const QString &s, QString::Null) { return !s.isNull(); }
 #endif
 
-inline bool operator==(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator==(QLatin1String s1, QLatin1String s2) noexcept
 { return s1.size() == s2.size() && (!s1.size() || !memcmp(s1.latin1(), s2.latin1(), s1.size())); }
-inline bool operator!=(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator!=(QLatin1String s1, QLatin1String s2) noexcept
 { return !operator==(s1, s2); }
-inline bool operator<(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator<(QLatin1String s1, QLatin1String s2) noexcept
 {
     const int len = qMin(s1.size(), s2.size());
     const int r = len ? memcmp(s1.latin1(), s2.latin1(), len) : 0;
     return r < 0 || (r == 0 && s1.size() < s2.size());
 }
-inline bool operator>(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator>(QLatin1String s1, QLatin1String s2) noexcept
 { return operator<(s2, s1); }
-inline bool operator<=(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator<=(QLatin1String s1, QLatin1String s2) noexcept
 { return !operator>(s1, s2); }
-inline bool operator>=(QLatin1String s1, QLatin1String s2) Q_DECL_NOTHROW
+inline bool operator>=(QLatin1String s1, QLatin1String s2) noexcept
 { return !operator<(s1, s2); }
 
-inline bool QLatin1String::operator==(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator==(const QString &s) const noexcept
 { return s == *this; }
-inline bool QLatin1String::operator!=(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator!=(const QString &s) const noexcept
 { return s != *this; }
-inline bool QLatin1String::operator>(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator>(const QString &s) const noexcept
 { return s < *this; }
-inline bool QLatin1String::operator<(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator<(const QString &s) const noexcept
 { return s > *this; }
-inline bool QLatin1String::operator>=(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator>=(const QString &s) const noexcept
 { return s <= *this; }
-inline bool QLatin1String::operator<=(const QString &s) const Q_DECL_NOTHROW
+inline bool QLatin1String::operator<=(const QString &s) const noexcept
 { return s >= *this; }
 
 #if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
@@ -1376,14 +1387,12 @@ inline std::wstring QString::toStdWString() const
 {
     std::wstring str;
     str.resize(length());
-
-#ifdef Q_CC_MSVC
-    // VS2005 crashes if the string is empty
-    if (!length())
-        return str;
+#if __cplusplus >= 201703L
+    str.resize(toWCharArray(str.data()));
+#else
+    if (length())
+        str.resize(toWCharArray(&str.front()));
 #endif
-
-    str.resize(toWCharArray(&(*str.begin())));
     return str;
 }
 
@@ -1437,14 +1446,12 @@ public:
 
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     // ### Qt 6: remove all of these, the implicit ones are fine
-    QStringRef(const QStringRef &other) Q_DECL_NOTHROW
+    QStringRef(const QStringRef &other) noexcept
         :m_string(other.m_string), m_position(other.m_position), m_size(other.m_size)
         {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QStringRef(QStringRef &&other) Q_DECL_NOTHROW : m_string(other.m_string), m_position(other.m_position), m_size(other.m_size) {}
-    QStringRef &operator=(QStringRef &&other) Q_DECL_NOTHROW { return *this = other; }
-#endif
-    QStringRef &operator=(const QStringRef &other) Q_DECL_NOTHROW
+    QStringRef(QStringRef &&other) noexcept : m_string(other.m_string), m_position(other.m_position), m_size(other.m_size) {}
+    QStringRef &operator=(QStringRef &&other) noexcept { return *this = other; }
+    QStringRef &operator=(const QStringRef &other) noexcept
     {
         m_string = other.m_string; m_position = other.m_position;
         m_size = other.m_size; return *this;
@@ -1458,10 +1465,14 @@ public:
     inline int count() const { return m_size; }
     inline int length() const { return m_size; }
 
+#if QT_STRINGVIEW_LEVEL < 2
     int indexOf(const QString &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
+    int indexOf(const QStringRef &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
+#endif
+    Q_REQUIRED_RESULT int indexOf(QStringView s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return int(QtPrivate::findString(*this, from, s, cs)); } // ### Qt6: qsize
     int indexOf(QChar ch, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int indexOf(QLatin1String str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
-    int indexOf(const QStringRef &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int lastIndexOf(const QString &str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int lastIndexOf(QChar ch, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     int lastIndexOf(QLatin1String str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -1487,8 +1498,8 @@ public:
     Q_REQUIRED_RESULT QStringRef chopped(int n) const
     { Q_ASSERT(n >= 0); Q_ASSERT(n <= size()); return left(size() - n); }
 
-    void truncate(int pos) Q_DECL_NOTHROW { m_size = qBound(0, pos, m_size); }
-    void chop(int n) Q_DECL_NOTHROW
+    void truncate(int pos) noexcept { m_size = qBound(0, pos, m_size); }
+    void chop(int n) noexcept
     {
         if (n >= m_size)
             m_size = 0;
@@ -1498,7 +1509,7 @@ public:
 
     bool isRightToLeft() const;
 
-    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::startsWith(*this, s, cs); }
     bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -1507,7 +1518,7 @@ public:
     bool startsWith(const QStringRef &c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
 #endif
 
-    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::endsWith(*this, s, cs); }
     bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
     bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
@@ -1570,19 +1581,19 @@ public:
     inline QT_ASCII_CAST_WARN bool operator>=(const char *s) const;
 #endif
 
-    int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    int compare(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
+    int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    int compare(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
 #if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
     int compare(const QByteArray &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
     { return QString::compare_helper(unicode(), size(), s.data(), qstrnlen(s.data(), s.size()), cs); }
 #endif
     static int compare(const QStringRef &s1, const QString &s2,
-                       Qt::CaseSensitivity = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                       Qt::CaseSensitivity = Qt::CaseSensitive) noexcept;
     static int compare(const QStringRef &s1, const QStringRef &s2,
-                       Qt::CaseSensitivity = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                       Qt::CaseSensitivity = Qt::CaseSensitive) noexcept;
     static int compare(const QStringRef &s1, QLatin1String s2,
-                       Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+                       Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
 
     int localeAwareCompare(const QString &s) const;
     int localeAwareCompare(const QStringRef &s) const;
@@ -1613,162 +1624,162 @@ inline QStringRef::QStringRef(const QString *aString)
     :m_string(aString), m_position(0), m_size(aString?aString->size() : 0){}
 
 // QStringRef <> QStringRef
-Q_CORE_EXPORT bool operator==(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW;
-inline bool operator!=(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW
+Q_CORE_EXPORT bool operator==(const QStringRef &s1, const QStringRef &s2) noexcept;
+inline bool operator!=(const QStringRef &s1, const QStringRef &s2) noexcept
 { return !(s1 == s2); }
-Q_CORE_EXPORT bool operator<(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW;
-inline bool operator>(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW
+Q_CORE_EXPORT bool operator<(const QStringRef &s1, const QStringRef &s2) noexcept;
+inline bool operator>(const QStringRef &s1, const QStringRef &s2) noexcept
 { return s2 < s1; }
-inline bool operator<=(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW
+inline bool operator<=(const QStringRef &s1, const QStringRef &s2) noexcept
 { return !(s1 > s2); }
-inline bool operator>=(const QStringRef &s1, const QStringRef &s2) Q_DECL_NOTHROW
+inline bool operator>=(const QStringRef &s1, const QStringRef &s2) noexcept
 { return !(s1 < s2); }
 
 // QString <> QStringRef
-Q_CORE_EXPORT bool operator==(const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW;
-inline bool operator!=(const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return lhs.compare(rhs) != 0; }
-inline bool operator< (const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return lhs.compare(rhs) <  0; }
-inline bool operator> (const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return lhs.compare(rhs) >  0; }
-inline bool operator<=(const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return lhs.compare(rhs) <= 0; }
-inline bool operator>=(const QString &lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return lhs.compare(rhs) >= 0; }
-
-inline bool operator==(const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs == lhs; }
-inline bool operator!=(const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs != lhs; }
-inline bool operator< (const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs >  lhs; }
-inline bool operator> (const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs <  lhs; }
-inline bool operator<=(const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs >= lhs; }
-inline bool operator>=(const QStringRef &lhs, const QString &rhs) Q_DECL_NOTHROW { return rhs <= lhs; }
+Q_CORE_EXPORT bool operator==(const QString &lhs, const QStringRef &rhs) noexcept;
+inline bool operator!=(const QString &lhs, const QStringRef &rhs) noexcept { return lhs.compare(rhs) != 0; }
+inline bool operator< (const QString &lhs, const QStringRef &rhs) noexcept { return lhs.compare(rhs) <  0; }
+inline bool operator> (const QString &lhs, const QStringRef &rhs) noexcept { return lhs.compare(rhs) >  0; }
+inline bool operator<=(const QString &lhs, const QStringRef &rhs) noexcept { return lhs.compare(rhs) <= 0; }
+inline bool operator>=(const QString &lhs, const QStringRef &rhs) noexcept { return lhs.compare(rhs) >= 0; }
+
+inline bool operator==(const QStringRef &lhs, const QString &rhs) noexcept { return rhs == lhs; }
+inline bool operator!=(const QStringRef &lhs, const QString &rhs) noexcept { return rhs != lhs; }
+inline bool operator< (const QStringRef &lhs, const QString &rhs) noexcept { return rhs >  lhs; }
+inline bool operator> (const QStringRef &lhs, const QString &rhs) noexcept { return rhs <  lhs; }
+inline bool operator<=(const QStringRef &lhs, const QString &rhs) noexcept { return rhs >= lhs; }
+inline bool operator>=(const QStringRef &lhs, const QString &rhs) noexcept { return rhs <= lhs; }
 
 #if QT_STRINGVIEW_LEVEL < 2
-inline int QString::compare(const QStringRef &s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+inline int QString::compare(const QStringRef &s, Qt::CaseSensitivity cs) const noexcept
 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
 #endif
-inline int QString::compare(QStringView s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+inline int QString::compare(QStringView s, Qt::CaseSensitivity cs) const noexcept
 { return -s.compare(*this, cs); }
-inline int QString::compare(const QString &s1, const QStringRef &s2, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+inline int QString::compare(const QString &s1, const QStringRef &s2, Qt::CaseSensitivity cs) noexcept
 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
-inline int QStringRef::compare(const QString &s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+inline int QStringRef::compare(const QString &s, Qt::CaseSensitivity cs) const noexcept
 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
-inline int QStringRef::compare(const QStringRef &s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+inline int QStringRef::compare(const QStringRef &s, Qt::CaseSensitivity cs) const noexcept
 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
-inline int QStringRef::compare(QLatin1String s, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+inline int QStringRef::compare(QLatin1String s, Qt::CaseSensitivity cs) const noexcept
 { return QString::compare_helper(constData(), length(), s, cs); }
-inline int QStringRef::compare(const QStringRef &s1, const QString &s2, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+inline int QStringRef::compare(const QStringRef &s1, const QString &s2, Qt::CaseSensitivity cs) noexcept
 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
-inline int QStringRef::compare(const QStringRef &s1, const QStringRef &s2, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+inline int QStringRef::compare(const QStringRef &s1, const QStringRef &s2, Qt::CaseSensitivity cs) noexcept
 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
-inline int QStringRef::compare(const QStringRef &s1, QLatin1String s2, Qt::CaseSensitivity cs) Q_DECL_NOTHROW
+inline int QStringRef::compare(const QStringRef &s1, QLatin1String s2, Qt::CaseSensitivity cs) noexcept
 { return QString::compare_helper(s1.constData(), s1.length(), s2, cs); }
 
 // QLatin1String <> QStringRef
-Q_CORE_EXPORT bool operator==(QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW;
-inline bool operator!=(QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return rhs.compare(lhs) != 0; }
-inline bool operator< (QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return rhs.compare(lhs) >  0; }
-inline bool operator> (QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return rhs.compare(lhs) <  0; }
-inline bool operator<=(QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return rhs.compare(lhs) >= 0; }
-inline bool operator>=(QLatin1String lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return rhs.compare(lhs) <= 0; }
-
-inline bool operator==(const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs == lhs; }
-inline bool operator!=(const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs != lhs; }
-inline bool operator< (const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs >  lhs; }
-inline bool operator> (const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs <  lhs; }
-inline bool operator<=(const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs >= lhs; }
-inline bool operator>=(const QStringRef &lhs, QLatin1String rhs) Q_DECL_NOTHROW { return rhs <= lhs; }
+Q_CORE_EXPORT bool operator==(QLatin1String lhs, const QStringRef &rhs) noexcept;
+inline bool operator!=(QLatin1String lhs, const QStringRef &rhs) noexcept { return rhs.compare(lhs) != 0; }
+inline bool operator< (QLatin1String lhs, const QStringRef &rhs) noexcept { return rhs.compare(lhs) >  0; }
+inline bool operator> (QLatin1String lhs, const QStringRef &rhs) noexcept { return rhs.compare(lhs) <  0; }
+inline bool operator<=(QLatin1String lhs, const QStringRef &rhs) noexcept { return rhs.compare(lhs) >= 0; }
+inline bool operator>=(QLatin1String lhs, const QStringRef &rhs) noexcept { return rhs.compare(lhs) <= 0; }
+
+inline bool operator==(const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs == lhs; }
+inline bool operator!=(const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs != lhs; }
+inline bool operator< (const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs >  lhs; }
+inline bool operator> (const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs <  lhs; }
+inline bool operator<=(const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs >= lhs; }
+inline bool operator>=(const QStringRef &lhs, QLatin1String rhs) noexcept { return rhs <= lhs; }
 
 // QChar <> QString
-inline bool operator==(QChar lhs, const QString &rhs) Q_DECL_NOTHROW
+inline bool operator==(QChar lhs, const QString &rhs) noexcept
 { return rhs.size() == 1 && lhs == rhs.front(); }
-inline bool operator< (QChar lhs, const QString &rhs) Q_DECL_NOTHROW
+inline bool operator< (QChar lhs, const QString &rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs.data(), rhs.size()) <  0; }
-inline bool operator> (QChar lhs, const QString &rhs) Q_DECL_NOTHROW
+inline bool operator> (QChar lhs, const QString &rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs.data(), rhs.size()) >  0; }
 
-inline bool operator!=(QChar lhs, const QString &rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator<=(QChar lhs, const QString &rhs) Q_DECL_NOTHROW { return !(lhs >  rhs); }
-inline bool operator>=(QChar lhs, const QString &rhs) Q_DECL_NOTHROW { return !(lhs <  rhs); }
+inline bool operator!=(QChar lhs, const QString &rhs) noexcept { return !(lhs == rhs); }
+inline bool operator<=(QChar lhs, const QString &rhs) noexcept { return !(lhs >  rhs); }
+inline bool operator>=(QChar lhs, const QString &rhs) noexcept { return !(lhs <  rhs); }
 
-inline bool operator==(const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs == lhs; }
-inline bool operator!=(const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs == lhs); }
-inline bool operator< (const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs >  lhs; }
-inline bool operator> (const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs <  lhs; }
-inline bool operator<=(const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs <  lhs); }
-inline bool operator>=(const QString &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs >  lhs); }
+inline bool operator==(const QString &lhs, QChar rhs) noexcept { return   rhs == lhs; }
+inline bool operator!=(const QString &lhs, QChar rhs) noexcept { return !(rhs == lhs); }
+inline bool operator< (const QString &lhs, QChar rhs) noexcept { return   rhs >  lhs; }
+inline bool operator> (const QString &lhs, QChar rhs) noexcept { return   rhs <  lhs; }
+inline bool operator<=(const QString &lhs, QChar rhs) noexcept { return !(rhs <  lhs); }
+inline bool operator>=(const QString &lhs, QChar rhs) noexcept { return !(rhs >  lhs); }
 
 // QChar <> QStringRef
-inline bool operator==(QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW
+inline bool operator==(QChar lhs, const QStringRef &rhs) noexcept
 { return rhs.size() == 1 && lhs == rhs.front(); }
-inline bool operator< (QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW
+inline bool operator< (QChar lhs, const QStringRef &rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs.data(), rhs.size()) <  0; }
-inline bool operator> (QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW
+inline bool operator> (QChar lhs, const QStringRef &rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs.data(), rhs.size()) >  0; }
 
-inline bool operator!=(QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator<=(QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return !(lhs >  rhs); }
-inline bool operator>=(QChar lhs, const QStringRef &rhs) Q_DECL_NOTHROW { return !(lhs <  rhs); }
+inline bool operator!=(QChar lhs, const QStringRef &rhs) noexcept { return !(lhs == rhs); }
+inline bool operator<=(QChar lhs, const QStringRef &rhs) noexcept { return !(lhs >  rhs); }
+inline bool operator>=(QChar lhs, const QStringRef &rhs) noexcept { return !(lhs <  rhs); }
 
-inline bool operator==(const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs == lhs; }
-inline bool operator!=(const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs == lhs); }
-inline bool operator< (const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs >  lhs; }
-inline bool operator> (const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs <  lhs; }
-inline bool operator<=(const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs <  lhs); }
-inline bool operator>=(const QStringRef &lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs >  lhs); }
+inline bool operator==(const QStringRef &lhs, QChar rhs) noexcept { return   rhs == lhs; }
+inline bool operator!=(const QStringRef &lhs, QChar rhs) noexcept { return !(rhs == lhs); }
+inline bool operator< (const QStringRef &lhs, QChar rhs) noexcept { return   rhs >  lhs; }
+inline bool operator> (const QStringRef &lhs, QChar rhs) noexcept { return   rhs <  lhs; }
+inline bool operator<=(const QStringRef &lhs, QChar rhs) noexcept { return !(rhs <  lhs); }
+inline bool operator>=(const QStringRef &lhs, QChar rhs) noexcept { return !(rhs >  lhs); }
 
 // QChar <> QLatin1String
-inline bool operator==(QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW
+inline bool operator==(QChar lhs, QLatin1String rhs) noexcept
 { return rhs.size() == 1 && lhs == rhs.front(); }
-inline bool operator< (QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW
+inline bool operator< (QChar lhs, QLatin1String rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs) <  0; }
-inline bool operator> (QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW
+inline bool operator> (QChar lhs, QLatin1String rhs) noexcept
 { return QString::compare_helper(&lhs, 1, rhs) >  0; }
 
-inline bool operator!=(QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator<=(QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW { return !(lhs >  rhs); }
-inline bool operator>=(QChar lhs, QLatin1String rhs) Q_DECL_NOTHROW { return !(lhs <  rhs); }
+inline bool operator!=(QChar lhs, QLatin1String rhs) noexcept { return !(lhs == rhs); }
+inline bool operator<=(QChar lhs, QLatin1String rhs) noexcept { return !(lhs >  rhs); }
+inline bool operator>=(QChar lhs, QLatin1String rhs) noexcept { return !(lhs <  rhs); }
 
-inline bool operator==(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs == lhs; }
-inline bool operator!=(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs == lhs); }
-inline bool operator< (QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs >  lhs; }
-inline bool operator> (QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return   rhs <  lhs; }
-inline bool operator<=(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs <  lhs); }
-inline bool operator>=(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs >  lhs); }
+inline bool operator==(QLatin1String lhs, QChar rhs) noexcept { return   rhs == lhs; }
+inline bool operator!=(QLatin1String lhs, QChar rhs) noexcept { return !(rhs == lhs); }
+inline bool operator< (QLatin1String lhs, QChar rhs) noexcept { return   rhs >  lhs; }
+inline bool operator> (QLatin1String lhs, QChar rhs) noexcept { return   rhs <  lhs; }
+inline bool operator<=(QLatin1String lhs, QChar rhs) noexcept { return !(rhs <  lhs); }
+inline bool operator>=(QLatin1String lhs, QChar rhs) noexcept { return !(rhs >  lhs); }
 
 // QStringView <> QStringView
-inline bool operator==(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
-inline bool operator!=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator< (QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <  0; }
-inline bool operator<=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
-inline bool operator> (QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >  0; }
-inline bool operator>=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
+inline bool operator==(QStringView lhs, QStringView rhs) noexcept { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
+inline bool operator!=(QStringView lhs, QStringView rhs) noexcept { return !(lhs == rhs); }
+inline bool operator< (QStringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
+inline bool operator<=(QStringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
+inline bool operator> (QStringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
+inline bool operator>=(QStringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
 
 // QStringView <> QChar
-inline bool operator==(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs == QStringView(&rhs, 1); }
-inline bool operator!=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs != QStringView(&rhs, 1); }
-inline bool operator< (QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs <  QStringView(&rhs, 1); }
-inline bool operator<=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs <= QStringView(&rhs, 1); }
-inline bool operator> (QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs >  QStringView(&rhs, 1); }
-inline bool operator>=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs >= QStringView(&rhs, 1); }
-
-inline bool operator==(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) == rhs; }
-inline bool operator!=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) != rhs; }
-inline bool operator< (QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) <  rhs; }
-inline bool operator<=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) <= rhs; }
-inline bool operator> (QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) >  rhs; }
-inline bool operator>=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) >= rhs; }
+inline bool operator==(QStringView lhs, QChar rhs) noexcept { return lhs == QStringView(&rhs, 1); }
+inline bool operator!=(QStringView lhs, QChar rhs) noexcept { return lhs != QStringView(&rhs, 1); }
+inline bool operator< (QStringView lhs, QChar rhs) noexcept { return lhs <  QStringView(&rhs, 1); }
+inline bool operator<=(QStringView lhs, QChar rhs) noexcept { return lhs <= QStringView(&rhs, 1); }
+inline bool operator> (QStringView lhs, QChar rhs) noexcept { return lhs >  QStringView(&rhs, 1); }
+inline bool operator>=(QStringView lhs, QChar rhs) noexcept { return lhs >= QStringView(&rhs, 1); }
+
+inline bool operator==(QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) == rhs; }
+inline bool operator!=(QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) != rhs; }
+inline bool operator< (QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) <  rhs; }
+inline bool operator<=(QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) <= rhs; }
+inline bool operator> (QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) >  rhs; }
+inline bool operator>=(QChar lhs, QStringView rhs) noexcept { return QStringView(&lhs, 1) >= rhs; }
 
 // QStringView <> QLatin1String
-inline bool operator==(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
-inline bool operator!=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator< (QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <  0; }
-inline bool operator<=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
-inline bool operator> (QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >  0; }
-inline bool operator>=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
-
-inline bool operator==(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
-inline bool operator!=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
-inline bool operator< (QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <  0; }
-inline bool operator<=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
-inline bool operator> (QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >  0; }
-inline bool operator>=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
+inline bool operator==(QStringView lhs, QLatin1String rhs) noexcept { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
+inline bool operator!=(QStringView lhs, QLatin1String rhs) noexcept { return !(lhs == rhs); }
+inline bool operator< (QStringView lhs, QLatin1String rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
+inline bool operator<=(QStringView lhs, QLatin1String rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
+inline bool operator> (QStringView lhs, QLatin1String rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
+inline bool operator>=(QStringView lhs, QLatin1String rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
+
+inline bool operator==(QLatin1String lhs, QStringView rhs) noexcept { return lhs.size() == rhs.size() && QtPrivate::compareStrings(lhs, rhs) == 0; }
+inline bool operator!=(QLatin1String lhs, QStringView rhs) noexcept { return !(lhs == rhs); }
+inline bool operator< (QLatin1String lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
+inline bool operator<=(QLatin1String lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
+inline bool operator> (QLatin1String lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
+inline bool operator>=(QLatin1String lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
 
 #if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
 // QStringRef <> QByteArray
diff --git a/src/corelib/tools/qstringalgorithms.h b/src/corelib/tools/qstringalgorithms.h
index cc0eda71f3..51a86cfeb5 100644
--- a/src/corelib/tools/qstringalgorithms.h
+++ b/src/corelib/tools/qstringalgorithms.h
@@ -51,31 +51,37 @@ QT_BEGIN_NAMESPACE
 class QByteArray;
 class QLatin1String;
 class QStringView;
+class QChar;
 template <typename T> class QVector;
 
 namespace QtPrivate {
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype qustrlen(const ushort *str) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype qustrlen(const ushort *str) noexcept;
 Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION const ushort *qustrchr(QStringView str, ushort ch) noexcept;
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QStringView   lhs, QStringView   rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QStringView   lhs, QLatin1String rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QLatin1String lhs, QStringView   rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QStringView   lhs, QStringView   rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QStringView   lhs, QLatin1String rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QLatin1String lhs, QStringView   rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION int compareStrings(QLatin1String lhs, QLatin1String rhs, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
 
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QStringView   haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QStringView   haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QLatin1String haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QStringView   haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QStringView   haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QLatin1String haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool startsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QStringView   haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QStringView   haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QLatin1String haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QStringView   haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QStringView   haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QLatin1String haystack, QStringView   needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION bool endsWith(QLatin1String haystack, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION QStringView   trimmed(QStringView   s) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION QLatin1String trimmed(QLatin1String s) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype findString(QStringView haystack, qsizetype from, QStringView needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype findString(QStringView haystack, qsizetype from, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype findString(QLatin1String haystack, qsizetype from, QStringView needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION qsizetype findString(QLatin1String haystack, qsizetype from, QLatin1String needle, Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION QStringView   trimmed(QStringView   s) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT Q_DECL_PURE_FUNCTION QLatin1String trimmed(QLatin1String s) noexcept;
 
 Q_REQUIRED_RESULT Q_CORE_EXPORT QByteArray convertToLatin1(QStringView str);
 Q_REQUIRED_RESULT Q_CORE_EXPORT QByteArray convertToUtf8(QStringView str);
@@ -83,10 +89,10 @@ Q_REQUIRED_RESULT Q_CORE_EXPORT QByteArray convertToLocal8Bit(QStringView str);
 Q_REQUIRED_RESULT Q_CORE_EXPORT QVector<uint> convertToUcs4(QStringView str);
 Q_REQUIRED_RESULT Q_CORE_EXPORT bool isRightToLeft(QStringView string);
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool isAscii(QLatin1String s) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool isAscii(QStringView   s) Q_DECL_NOTHROW;
-Q_REQUIRED_RESULT               bool isLatin1(QLatin1String s) Q_DECL_NOTHROW; // in qstring.h
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool isLatin1(QStringView   s) Q_DECL_NOTHROW;
+Q_REQUIRED_RESULT Q_CORE_EXPORT bool isAscii(QLatin1String s) noexcept;
+Q_REQUIRED_RESULT Q_CORE_EXPORT bool isAscii(QStringView   s) noexcept;
+Q_REQUIRED_RESULT               bool isLatin1(QLatin1String s) noexcept; // in qstring.h
+Q_REQUIRED_RESULT Q_CORE_EXPORT bool isLatin1(QStringView   s) noexcept;
 
 } // namespace QtPRivate
 
diff --git a/src/corelib/tools/qstringalgorithms_p.h b/src/corelib/tools/qstringalgorithms_p.h
index 4bcf697f78..64d9f2e676 100644
--- a/src/corelib/tools/qstringalgorithms_p.h
+++ b/src/corelib/tools/qstringalgorithms_p.h
@@ -77,7 +77,7 @@ template <typename StringType> struct QStringAlgorithms
         if (begin != data)
             memmove(data, begin, (end - begin) * sizeof(Char));
         str.resize(end - begin);
-        return qMove(str);
+        return std::move(str);
     }
 
     static inline StringType trimmed_helper_inplace(const NakedStringType &, const Char *, const Char *)
@@ -118,7 +118,7 @@ template <typename StringType> struct QStringAlgorithms
         const Char *end = str.cend();
         NakedStringType result = isConst || !str.isDetached() ?
                                      StringType(str.size(), Qt::Uninitialized) :
-                                     qMove(str);
+                                     std::move(str);
 
         Char *dst = const_cast<Char *>(result.cbegin());
         Char *ptr = dst;
diff --git a/src/corelib/tools/qstringbuilder.cpp b/src/corelib/tools/qstringbuilder.cpp
index 8afc83819b..cf443ec369 100644
--- a/src/corelib/tools/qstringbuilder.cpp
+++ b/src/corelib/tools/qstringbuilder.cpp
@@ -124,7 +124,7 @@ QT_BEGIN_NAMESPACE
 /*!
     \internal
  */
-void QAbstractConcatenable::convertFromAscii(const char *a, int len, QChar *&out) Q_DECL_NOTHROW
+void QAbstractConcatenable::convertFromAscii(const char *a, int len, QChar *&out) noexcept
 {
     if (Q_UNLIKELY(len == -1)) {
         if (!a)
diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h
index 1d96d70637..b3cf2f695e 100644
--- a/src/corelib/tools/qstringbuilder.h
+++ b/src/corelib/tools/qstringbuilder.h
@@ -58,12 +58,12 @@ QT_BEGIN_NAMESPACE
 struct Q_CORE_EXPORT QAbstractConcatenable
 {
 protected:
-    static void convertFromAscii(const char *a, int len, QChar *&out) Q_DECL_NOTHROW;
-    static inline void convertFromAscii(char a, QChar *&out) Q_DECL_NOTHROW
+    static void convertFromAscii(const char *a, int len, QChar *&out) noexcept;
+    static inline void convertFromAscii(char a, QChar *&out) noexcept
     {
         *out++ = QLatin1Char(a);
     }
-    static void appendLatin1To(const char *a, int len, QChar *out) Q_DECL_NOTHROW;
+    static void appendLatin1To(const char *a, int len, QChar *out) noexcept;
 };
 
 template <typename T> struct QConcatenable {};
@@ -150,7 +150,7 @@ class QStringBuilder <QString, QString> : public QStringBuilderBase<QStringBuild
         const QString &b;
 
     private:
-        QStringBuilder &operator=(const QStringBuilder &) Q_DECL_EQ_DELETE;
+        QStringBuilder &operator=(const QStringBuilder &) = delete;
 };
 
 template <>
@@ -167,7 +167,7 @@ class QStringBuilder <QByteArray, QByteArray> : public QStringBuilderBase<QStrin
         const QByteArray &b;
 
     private:
-        QStringBuilder &operator=(const QStringBuilder &) Q_DECL_EQ_DELETE;
+        QStringBuilder &operator=(const QStringBuilder &) = delete;
 };
 
 
diff --git a/src/corelib/tools/qstringlist.cpp b/src/corelib/tools/qstringlist.cpp
index cc6eaf8ad2..f6da7b1428 100644
--- a/src/corelib/tools/qstringlist.cpp
+++ b/src/corelib/tools/qstringlist.cpp
@@ -38,6 +38,7 @@
 ****************************************************************************/
 
 #include <qstringlist.h>
+#include <qregexp.h>
 #include <qset.h>
 #if QT_CONFIG(regularexpression)
 #  include <qregularexpression.h>
@@ -847,5 +848,12 @@ int QtPrivate::QStringList_removeDuplicates(QStringList *that)
     lists.
 */
 
+ /*! \fn template<typename InputIterator> QStringList::QStringList(InputIterator first, InputIterator last)
+     \since 5.14
+
+     Constructs a QStringList with the contents in the iterator range [\a first, \a last).
+
+     The value type of \c InputIterator must be convertible to \c QString.
+ */
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qstringlist.h b/src/corelib/tools/qstringlist.h
index 6b04b7aef1..81748e9a0b 100644
--- a/src/corelib/tools/qstringlist.h
+++ b/src/corelib/tools/qstringlist.h
@@ -44,6 +44,7 @@
 #define QSTRINGLIST_H
 
 #include <QtCore/qalgorithms.h>
+#include <QtCore/qcontainertools_impl.h>
 #include <QtCore/qregexp.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qstringmatcher.h>
@@ -100,22 +101,19 @@ class QStringList : public QList<QString>
 {
 #endif
 public:
-    inline QStringList() Q_DECL_NOTHROW { }
+    inline QStringList() noexcept { }
     inline explicit QStringList(const QString &i) { append(i); }
     inline QStringList(const QList<QString> &l) : QList<QString>(l) { }
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QStringList(QList<QString> &&l) Q_DECL_NOTHROW : QList<QString>(std::move(l)) { }
-#endif
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    inline QStringList(QList<QString> &&l) noexcept : QList<QString>(std::move(l)) { }
     inline QStringList(std::initializer_list<QString> args) : QList<QString>(args) { }
-#endif
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    inline QStringList(InputIterator first, InputIterator last)
+        : QList<QString>(first, last) { }
 
     QStringList &operator=(const QList<QString> &other)
     { QList<QString>::operator=(other); return *this; }
-#ifdef Q_COMPILER_RVALUE_REFS
-    QStringList &operator=(QList<QString> &&other) Q_DECL_NOTHROW
+    QStringList &operator=(QList<QString> &&other) noexcept
     { QList<QString>::operator=(std::move(other)); return *this; }
-#endif
 
 #if QT_STRINGVIEW_LEVEL < 2
     inline bool contains(const QString &str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
diff --git a/src/corelib/tools/qstringliteral.h b/src/corelib/tools/qstringliteral.h
index 64296b89fc..603f19c0b4 100644
--- a/src/corelib/tools/qstringliteral.h
+++ b/src/corelib/tools/qstringliteral.h
@@ -63,7 +63,7 @@ Q_STATIC_ASSERT_X(sizeof(qunicodechar) == 2,
 
 #define QT_UNICODE_LITERAL(str) u"" str
 #define QStringLiteral(str) \
-    ([]() Q_DECL_NOEXCEPT -> QString { \
+    ([]() noexcept -> QString { \
         enum { Size = sizeof(QT_UNICODE_LITERAL(str))/2 - 1 }; \
         static const QStaticStringData<Size> qstring_literal = { \
             Q_STATIC_STRING_DATA_HEADER_INITIALIZER(Size), \
diff --git a/src/corelib/tools/qstringmatcher.cpp b/src/corelib/tools/qstringmatcher.cpp
index 67d3f0ebc8..417910b6ec 100644
--- a/src/corelib/tools/qstringmatcher.cpp
+++ b/src/corelib/tools/qstringmatcher.cpp
@@ -1,6 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 Mail.ru Group.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -41,43 +42,43 @@
 
 QT_BEGIN_NAMESPACE
 
-static void bm_init_skiptable(const ushort *uc, int len, uchar *skiptable, Qt::CaseSensitivity cs)
+static void bm_init_skiptable(const ushort *uc, qsizetype len, uchar *skiptable, Qt::CaseSensitivity cs)
 {
-    int l = qMin(len, 255);
-    memset(skiptable, l, 256*sizeof(uchar));
+    int l = int(qMin(len, qsizetype(255)));
+    memset(skiptable, l, 256 * sizeof(uchar));
     uc += len - l;
     if (cs == Qt::CaseSensitive) {
         while (l--) {
             skiptable[*uc & 0xff] = l;
-            uc++;
+            ++uc;
         }
     } else {
         const ushort *start = uc;
         while (l--) {
             skiptable[foldCase(uc, start) & 0xff] = l;
-            uc++;
+            ++uc;
         }
     }
 }
 
-static inline int bm_find(const ushort *uc, uint l, int index, const ushort *puc, uint pl,
+static inline qsizetype bm_find(const ushort *uc, qsizetype l, qsizetype index, const ushort *puc, qsizetype pl,
                           const uchar *skiptable, Qt::CaseSensitivity cs)
 {
     if (pl == 0)
-        return index > (int)l ? -1 : index;
-    const uint pl_minus_one = pl - 1;
+        return index > l ? -1 : index;
+    const qsizetype pl_minus_one = pl - 1;
 
     const ushort *current = uc + index + pl_minus_one;
     const ushort *end = uc + l;
     if (cs == Qt::CaseSensitive) {
         while (current < end) {
-            uint skip = skiptable[*current & 0xff];
+            qsizetype skip = skiptable[*current & 0xff];
             if (!skip) {
                 // possible match
                 while (skip < pl) {
                     if (*(current - skip) != puc[pl_minus_one-skip])
                         break;
-                    skip++;
+                    ++skip;
                 }
                 if (skip > pl_minus_one) // we have a match
                     return (current - uc) - pl_minus_one;
@@ -95,13 +96,13 @@ static inline int bm_find(const ushort *uc, uint l, int index, const ushort *puc
         }
     } else {
         while (current < end) {
-            uint skip = skiptable[foldCase(current, uc) & 0xff];
+            qsizetype skip = skiptable[foldCase(current, uc) & 0xff];
             if (!skip) {
                 // possible match
                 while (skip < pl) {
                     if (foldCase(current - skip, uc) != foldCase(puc + pl_minus_one - skip, puc))
                         break;
-                    skip++;
+                    ++skip;
                 }
                 if (skip > pl_minus_one) // we have a match
                     return (current - uc) - pl_minus_one;
@@ -175,14 +176,27 @@ QStringMatcher::QStringMatcher(const QString &pattern, Qt::CaseSensitivity cs)
     by \a uc with the given \a length and case sensitivity specified by \a cs.
 */
 QStringMatcher::QStringMatcher(const QChar *uc, int len, Qt::CaseSensitivity cs)
-    : d_ptr(0), q_cs(cs)
+    : QStringMatcher(QStringView(uc, len), cs)
 {
-    p.uc = uc;
-    p.len = len;
-    bm_init_skiptable((const ushort *)p.uc, len, p.q_skiptable, cs);
 }
 
 /*!
+    \fn QStringMatcher::QStringMatcher(QStringView str, Qt::CaseSensitivity cs)
+    \since 5.14
+
+    Constructs a string matcher that will search for \a pattern, with
+    case sensitivity \a cs.
+
+    Call indexIn() to perform a search.
+*/
+QStringMatcher::QStringMatcher(QStringView str, Qt::CaseSensitivity cs)
+    : d_ptr(nullptr), q_cs(cs)
+{
+    p.uc = str.data();
+    p.len = int(str.size());
+    bm_init_skiptable((const ushort *)p.uc, p.len, p.q_skiptable, cs);
+}
+/*!
     Copies the \a other string matcher to this string matcher.
 */
 QStringMatcher::QStringMatcher(const QStringMatcher &other)
@@ -267,11 +281,7 @@ void QStringMatcher::setCaseSensitivity(Qt::CaseSensitivity cs)
 */
 int QStringMatcher::indexIn(const QString &str, int from) const
 {
-    if (from < 0)
-        from = 0;
-    return bm_find((const ushort *)str.unicode(), str.size(), from,
-                   (const ushort *)p.uc, p.len,
-                   p.q_skiptable, q_cs);
+    return int(indexIn(QStringView(str), from));
 }
 
 /*!
@@ -288,9 +298,25 @@ int QStringMatcher::indexIn(const QString &str, int from) const
 */
 int QStringMatcher::indexIn(const QChar *str, int length, int from) const
 {
+    return int(indexIn(QStringView(str, length), from));
+}
+
+/*!
+    \since 5.14
+
+    Searches the string \a str from character position \a from
+    (default 0, i.e. from the first character), for the string
+    pattern() that was set in the constructor or in the most recent
+    call to setPattern(). Returns the position where the pattern()
+    matched in \a str, or -1 if no match was found.
+
+    \sa setPattern(), setCaseSensitivity()
+*/
+qsizetype QStringMatcher::indexIn(QStringView str, qsizetype from) const
+{
     if (from < 0)
         from = 0;
-    return bm_find((const ushort *)str, length, from,
+    return bm_find((const ushort *)str.data(), str.size(), from,
                    (const ushort *)p.uc, p.len,
                    p.q_skiptable, q_cs);
 }
@@ -307,16 +333,16 @@ int QStringMatcher::indexIn(const QChar *str, int length, int from) const
     \internal
 */
 
-int qFindStringBoyerMoore(
-    const QChar *haystack, int haystackLen, int haystackOffset,
-    const QChar *needle, int needleLen, Qt::CaseSensitivity cs)
+qsizetype qFindStringBoyerMoore(
+    QStringView haystack, qsizetype haystackOffset,
+    QStringView needle, Qt::CaseSensitivity cs)
 {
     uchar skiptable[256];
-    bm_init_skiptable((const ushort *)needle, needleLen, skiptable, cs);
+    bm_init_skiptable((const ushort *)needle.data(), needle.size(), skiptable, cs);
     if (haystackOffset < 0)
         haystackOffset = 0;
-    return bm_find((const ushort *)haystack, haystackLen, haystackOffset,
-                   (const ushort *)needle, needleLen, skiptable, cs);
+    return bm_find((const ushort *)haystack.data(), haystack.size(), haystackOffset,
+                   (const ushort *)needle.data(), needle.size(), skiptable, cs);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qstringmatcher.h b/src/corelib/tools/qstringmatcher.h
index 549bff9f29..6de4353930 100644
--- a/src/corelib/tools/qstringmatcher.h
+++ b/src/corelib/tools/qstringmatcher.h
@@ -1,6 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 Mail.ru Group.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -41,6 +42,7 @@
 #define QSTRINGMATCHER_H
 
 #include <QtCore/qstring.h>
+#include <QtCore/qstringview.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -55,6 +57,8 @@ public:
                    Qt::CaseSensitivity cs = Qt::CaseSensitive);
     QStringMatcher(const QChar *uc, int len,
                    Qt::CaseSensitivity cs = Qt::CaseSensitive);
+    QStringMatcher(QStringView pattern,
+                   Qt::CaseSensitivity cs = Qt::CaseSensitive);
     QStringMatcher(const QStringMatcher &other);
     ~QStringMatcher();
 
@@ -65,6 +69,7 @@ public:
 
     int indexIn(const QString &str, int from = 0) const;
     int indexIn(const QChar *str, int length, int from = 0) const;
+    qsizetype indexIn(QStringView str, qsizetype from = 0) const;
     QString pattern() const;
     inline Qt::CaseSensitivity caseSensitivity() const { return q_cs; }
 
diff --git a/src/corelib/tools/qstringview.cpp b/src/corelib/tools/qstringview.cpp
index b97e989110..160654b419 100644
--- a/src/corelib/tools/qstringview.cpp
+++ b/src/corelib/tools/qstringview.cpp
@@ -38,6 +38,7 @@
 ****************************************************************************/
 
 #include "qstringview.h"
+#include "qstring.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -720,6 +721,25 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn qsizetype QStringView::indexOf(QStringView str, qsizetype from, Qt::CaseSensitivity cs) const
+    \fn qsizetype QStringView::indexOf(QLatin1String l1, qsizetype from Qt::CaseSensitivity cs) const
+    \fn qsizetype QStringView::indexOf(QChar c, qsizetype from, Qt::CaseSensitivity cs) const
+    \since 5.14
+
+    Returns the index position of the first occurrence of the string-view \a str,
+    Latin-1 string \a l1, or character \a ch, respectively, in this string-view,
+    searching forward from index position \a from. Returns -1 if \a str is not found.
+
+    If \a cs is Qt::CaseSensitive (default), the search is case
+    sensitive; otherwise the search is case insensitive.
+
+    If \a from is -1, the search starts at the last character; if it is
+    -2, at the next to last character and so on.
+
+    \sa QString::indexOf()
+*/
+
+/*!
     \fn QByteArray QStringView::toLatin1() const
 
     Returns a Latin-1 representation of the string as a QByteArray.
@@ -794,4 +814,34 @@ QT_BEGIN_NAMESPACE
     \sa QString::isRightToLeft()
 */
 
+/*!
+    \since 5.14
+
+    Transcribes this string into the given \a array.
+
+    Caller is responsible for ensuring \a array is large enough to hold the \t
+    wchar_t encoding of this string (allocating the array with the same length
+    as the string is always sufficient). The array is encoded in UTF-16 on
+    platforms where \t wchar_t is 2 bytes wide (e.g. Windows); otherwise (Unix
+    systems), \t wchar_t is assumed to be 4 bytes wide and the data is written
+    in UCS-4.
+
+    \note This function writes no null terminator to the end of \a array.
+
+    Returns the number of \t wchar_t entries written to \a array.
+
+    \sa QString::toWCharArray()
+*/
+
+int QStringView::toWCharArray(wchar_t *array) const
+{
+    if (sizeof(wchar_t) == sizeof(QChar)) {
+        memcpy(array, data(), sizeof(QChar) * size());
+        return size();
+    } else {
+        return QString::toUcs4_helper(reinterpret_cast<const ushort *>(data()), int(size()),
+                                      reinterpret_cast<uint *>(array));
+    }
+}
+
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qstringview.h b/src/corelib/tools/qstringview.h
index 2e95c2b218..bbf51b24f6 100644
--- a/src/corelib/tools/qstringview.h
+++ b/src/corelib/tools/qstringview.h
@@ -1,6 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2017 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
+** Copyright (C) 2019 Mail.ru Group.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -139,13 +140,13 @@ private:
     using if_compatible_qstring_like = typename std::enable_if<std::is_same<T, QString>::value || std::is_same<T, QStringRef>::value, bool>::type;
 
     template <typename Char, size_t N>
-    static Q_DECL_CONSTEXPR qsizetype lengthHelperArray(const Char (&)[N]) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR qsizetype lengthHelperArray(const Char (&)[N]) noexcept
     {
         return qsizetype(N - 1);
     }
 
     template <typename Char>
-    static qsizetype lengthHelperPointer(const Char *str) Q_DECL_NOTHROW
+    static qsizetype lengthHelperPointer(const Char *str) noexcept
     {
 #if defined(Q_CC_GNU) && !defined(Q_CC_CLANG) && !defined(Q_CC_INTEL)
         if (__builtin_constant_p(*str)) {
@@ -157,21 +158,21 @@ private:
 #endif
         return QtPrivate::qustrlen(reinterpret_cast<const ushort *>(str));
     }
-    static qsizetype lengthHelperPointer(const QChar *str) Q_DECL_NOTHROW
+    static qsizetype lengthHelperPointer(const QChar *str) noexcept
     {
         return QtPrivate::qustrlen(reinterpret_cast<const ushort *>(str));
     }
 
     template <typename Char>
-    static const storage_type *castHelper(const Char *str) Q_DECL_NOTHROW
+    static const storage_type *castHelper(const Char *str) noexcept
     { return reinterpret_cast<const storage_type*>(str); }
-    static Q_DECL_CONSTEXPR const storage_type *castHelper(const storage_type *str) Q_DECL_NOTHROW
+    static Q_DECL_CONSTEXPR const storage_type *castHelper(const storage_type *str) noexcept
     { return str; }
 
 public:
-    Q_DECL_CONSTEXPR QStringView() Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QStringView() noexcept
         : m_size(0), m_data(nullptr) {}
-    Q_DECL_CONSTEXPR QStringView(std::nullptr_t) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QStringView(std::nullptr_t) noexcept
         : QStringView() {}
 
     template <typename Char, if_compatible_char<Char> = true>
@@ -185,38 +186,38 @@ public:
 
 #ifdef Q_CLANG_QDOC
     template <typename Char, size_t N>
-    Q_DECL_CONSTEXPR QStringView(const Char (&array)[N]) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QStringView(const Char (&array)[N]) noexcept;
 
     template <typename Char>
-    Q_DECL_CONSTEXPR QStringView(const Char *str) Q_DECL_NOTHROW;
+    Q_DECL_CONSTEXPR QStringView(const Char *str) noexcept;
 #else
     template <typename Array, if_compatible_array<Array> = true>
-    Q_DECL_CONSTEXPR QStringView(const Array &str) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QStringView(const Array &str) noexcept
         : QStringView(str, lengthHelperArray(str)) {}
 
     template <typename Pointer, if_compatible_pointer<Pointer> = true>
-    Q_DECL_CONSTEXPR QStringView(const Pointer &str) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QStringView(const Pointer &str) noexcept
         : QStringView(str, str ? lengthHelperPointer(str) : 0) {}
 #endif
 
 #ifdef Q_CLANG_QDOC
-    QStringView(const QString &str) Q_DECL_NOTHROW;
-    QStringView(const QStringRef &str) Q_DECL_NOTHROW;
+    QStringView(const QString &str) noexcept;
+    QStringView(const QStringRef &str) noexcept;
 #else
     template <typename String, if_compatible_qstring_like<String> = true>
-    QStringView(const String &str) Q_DECL_NOTHROW
+    QStringView(const String &str) noexcept
         : QStringView(str.isNull() ? nullptr : str.data(), qsizetype(str.size())) {}
 #endif
 
     template <typename StdBasicString, if_compatible_string<StdBasicString> = true>
-    QStringView(const StdBasicString &str) Q_DECL_NOTHROW
+    QStringView(const StdBasicString &str) noexcept
         : QStringView(str.data(), qsizetype(str.size())) {}
 
     Q_REQUIRED_RESULT inline QString toString() const; // defined in qstring.h
 
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR qsizetype size() const Q_DECL_NOTHROW { return m_size; }
-    Q_REQUIRED_RESULT const_pointer data() const Q_DECL_NOTHROW { return reinterpret_cast<const_pointer>(m_data); }
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR const storage_type *utf16() const Q_DECL_NOTHROW { return m_data; }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR qsizetype size() const noexcept { return m_size; }
+    Q_REQUIRED_RESULT const_pointer data() const noexcept { return reinterpret_cast<const_pointer>(m_data); }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR const storage_type *utf16() const noexcept { return m_data; }
 
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QChar operator[](qsizetype n) const
     { return Q_ASSERT(n >= 0), Q_ASSERT(n < size()), QChar(m_data[n]); }
@@ -248,51 +249,59 @@ public:
     Q_DECL_RELAXED_CONSTEXPR void chop(qsizetype n)
     { Q_ASSERT(n >= 0); Q_ASSERT(n <= size()); m_size -= n; }
 
-    Q_REQUIRED_RESULT QStringView trimmed() const Q_DECL_NOTHROW { return QtPrivate::trimmed(*this); }
+    Q_REQUIRED_RESULT QStringView trimmed() const noexcept { return QtPrivate::trimmed(*this); }
 
-    Q_REQUIRED_RESULT int compare(QStringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT int compare(QStringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::compareStrings(*this, other, cs); }
 
-    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::startsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT inline bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT bool startsWith(QChar c) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    Q_REQUIRED_RESULT bool startsWith(QChar c) const noexcept
     { return !empty() && front() == c; }
-    Q_REQUIRED_RESULT bool startsWith(QChar c, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool startsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
     { return QtPrivate::startsWith(*this, QStringView(&c, 1), cs); }
 
-    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
     { return QtPrivate::endsWith(*this, s, cs); }
-    Q_REQUIRED_RESULT inline bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT bool endsWith(QChar c) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    Q_REQUIRED_RESULT bool endsWith(QChar c) const noexcept
     { return !empty() && back() == c; }
-    Q_REQUIRED_RESULT bool endsWith(QChar c, Qt::CaseSensitivity cs) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT bool endsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
     { return QtPrivate::endsWith(*this, QStringView(&c, 1), cs); }
 
-    Q_REQUIRED_RESULT bool isRightToLeft() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT qsizetype indexOf(QChar c, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::findString(*this, from, QStringView(&c, 1), cs); }
+    Q_REQUIRED_RESULT qsizetype indexOf(QStringView s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::findString(*this, from, s, cs); }
+    Q_REQUIRED_RESULT inline qsizetype indexOf(QLatin1String s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+
+    Q_REQUIRED_RESULT bool isRightToLeft() const noexcept
     { return QtPrivate::isRightToLeft(*this); }
 
+    Q_REQUIRED_RESULT Q_CORE_EXPORT int toWCharArray(wchar_t *array) const;
+
     //
     // STL compatibility API:
     //
-    Q_REQUIRED_RESULT const_iterator begin()   const Q_DECL_NOTHROW { return data(); }
-    Q_REQUIRED_RESULT const_iterator end()     const Q_DECL_NOTHROW { return data() + size(); }
-    Q_REQUIRED_RESULT const_iterator cbegin()  const Q_DECL_NOTHROW { return begin(); }
-    Q_REQUIRED_RESULT const_iterator cend()    const Q_DECL_NOTHROW { return end(); }
-    Q_REQUIRED_RESULT const_reverse_iterator rbegin()  const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    Q_REQUIRED_RESULT const_reverse_iterator rend()    const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    Q_REQUIRED_RESULT const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return rbegin(); }
-    Q_REQUIRED_RESULT const_reverse_iterator crend()   const Q_DECL_NOTHROW { return rend(); }
-
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool empty() const Q_DECL_NOTHROW { return size() == 0; }
+    Q_REQUIRED_RESULT const_iterator begin()   const noexcept { return data(); }
+    Q_REQUIRED_RESULT const_iterator end()     const noexcept { return data() + size(); }
+    Q_REQUIRED_RESULT const_iterator cbegin()  const noexcept { return begin(); }
+    Q_REQUIRED_RESULT const_iterator cend()    const noexcept { return end(); }
+    Q_REQUIRED_RESULT const_reverse_iterator rbegin()  const noexcept { return const_reverse_iterator(end()); }
+    Q_REQUIRED_RESULT const_reverse_iterator rend()    const noexcept { return const_reverse_iterator(begin()); }
+    Q_REQUIRED_RESULT const_reverse_iterator crbegin() const noexcept { return rbegin(); }
+    Q_REQUIRED_RESULT const_reverse_iterator crend()   const noexcept { return rend(); }
+
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool empty() const noexcept { return size() == 0; }
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QChar front() const { return Q_ASSERT(!empty()), QChar(m_data[0]); }
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QChar back()  const { return Q_ASSERT(!empty()), QChar(m_data[m_size - 1]); }
 
     //
     // Qt compatibility API:
     //
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW { return !m_data; }
-    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool isEmpty() const Q_DECL_NOTHROW { return empty(); }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool isNull() const noexcept { return !m_data; }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR bool isEmpty() const noexcept { return empty(); }
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR int length() const /* not nothrow! */
     { return Q_ASSERT(int(size()) == size()), int(size()); }
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QChar first() const { return front(); }
@@ -306,7 +315,7 @@ Q_DECLARE_TYPEINFO(QStringView, Q_PRIMITIVE_TYPE);
 template <typename QStringLike, typename std::enable_if<
     std::is_same<QStringLike, QString>::value || std::is_same<QStringLike, QStringRef>::value,
     bool>::type = true>
-inline QStringView qToStringViewIgnoringNull(const QStringLike &s) Q_DECL_NOTHROW
+inline QStringView qToStringViewIgnoringNull(const QStringLike &s) noexcept
 { return QStringView(s.data(), s.size()); }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/qtimezone.cpp b/src/corelib/tools/qtimezone.cpp
index cbc6b50c98..ef323de14a 100644
--- a/src/corelib/tools/qtimezone.cpp
+++ b/src/corelib/tools/qtimezone.cpp
@@ -317,7 +317,7 @@ Q_GLOBAL_STATIC(QTimeZoneSingleton, global_tz);
     Create a null/invalid time zone instance.
 */
 
-QTimeZone::QTimeZone() Q_DECL_NOTHROW
+QTimeZone::QTimeZone() noexcept
     : d(0)
 {
 }
diff --git a/src/corelib/tools/qtimezone.h b/src/corelib/tools/qtimezone.h
index 29d8a4dbe5..62ecee49bb 100644
--- a/src/corelib/tools/qtimezone.h
+++ b/src/corelib/tools/qtimezone.h
@@ -89,7 +89,7 @@ public:
     };
     typedef QVector<OffsetData> OffsetDataList;
 
-    QTimeZone() Q_DECL_NOTHROW;
+    QTimeZone() noexcept;
     explicit QTimeZone(const QByteArray &ianaId);
     explicit QTimeZone(int offsetSeconds);
     /*implicit*/ QTimeZone(const QByteArray &zoneId, int offsetSeconds, const QString &name,
@@ -99,11 +99,9 @@ public:
     ~QTimeZone();
 
     QTimeZone &operator=(const QTimeZone &other);
- #ifdef Q_COMPILER_RVALUE_REFS
-    QTimeZone &operator=(QTimeZone &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QTimeZone &operator=(QTimeZone &&other) noexcept { swap(other); return *this; }
 
-    void swap(QTimeZone &other) Q_DECL_NOTHROW
+    void swap(QTimeZone &other) noexcept
     { d.swap(other.d); }
 
     bool operator==(const QTimeZone &other) const;
diff --git a/src/corelib/tools/qtimezoneprivate_p.h b/src/corelib/tools/qtimezoneprivate_p.h
index 24a9a00f11..b5e9286f6a 100644
--- a/src/corelib/tools/qtimezoneprivate_p.h
+++ b/src/corelib/tools/qtimezoneprivate_p.h
@@ -282,9 +282,9 @@ struct QTzTransitionRule
     quint8 abbreviationIndex;
 };
 Q_DECLARE_TYPEINFO(QTzTransitionRule, Q_PRIMITIVE_TYPE);
-Q_DECL_CONSTEXPR inline bool operator==(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) noexcept
 { return lhs.stdOffset == rhs.stdOffset && lhs.dstOffset == rhs.dstOffset && lhs.abbreviationIndex == rhs.abbreviationIndex; }
-Q_DECL_CONSTEXPR inline bool operator!=(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) noexcept
 { return !operator==(lhs, rhs); }
 
 class Q_AUTOTEST_EXPORT QTzTimeZonePrivate final : public QTimeZonePrivate
diff --git a/src/corelib/tools/qtimezoneprivate_tz.cpp b/src/corelib/tools/qtimezoneprivate_tz.cpp
index 7d85bc077d..f5440799ab 100644
--- a/src/corelib/tools/qtimezoneprivate_tz.cpp
+++ b/src/corelib/tools/qtimezoneprivate_tz.cpp
@@ -468,7 +468,7 @@ struct PosixZone
     static PosixZone invalid() { return {QString(), InvalidOffset}; }
     static PosixZone parse(const char *&pos, const char *end);
 
-    bool hasValidOffset() const Q_DECL_NOTHROW { return offset != InvalidOffset; }
+    bool hasValidOffset() const noexcept { return offset != InvalidOffset; }
 };
 
 } // unnamed namespace
@@ -516,6 +516,10 @@ PosixZone PosixZone::parse(const char *&pos, const char *end)
     QString name = QString::fromUtf8(nameBegin, nameEnd - nameBegin);
     const int offset = zoneEnd > zoneBegin ? parsePosixOffset(zoneBegin, zoneEnd) : InvalidOffset;
     pos = zoneEnd;
+    // UTC+hh:mm:ss or GMT+hh:mm:ss should be read as offsets from UTC, not as a
+    // POSIX rule naming a zone as UTC or GMT and specifying a non-zero offset.
+    if (offset != 0 && (name == QLatin1String("UTC") || name == QLatin1String("GMT")))
+        return invalid();
     return {std::move(name), offset};
 }
 
@@ -654,8 +658,17 @@ void QTzTimeZonePrivate::init(const QByteArray &ianaId)
         tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
         if (!tzif.open(QIODevice::ReadOnly)) {
             tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
-            if (!tzif.open(QIODevice::ReadOnly))
+            if (!tzif.open(QIODevice::ReadOnly)) {
+                // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ
+                const QByteArray zoneInfo = ianaId.split(',').at(0);
+                const char *begin = zoneInfo.constBegin();
+                if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset()
+                    && (begin == zoneInfo.constEnd()
+                        || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) {
+                    m_id = m_posixRule = ianaId;
+                }
                 return;
+            }
         }
     }
 
@@ -1101,6 +1114,13 @@ QByteArray QTzTimeZonePrivate::systemTimeZoneId() const
         }
     }
 
+    // Some systems (e.g. uClibc) have a default value for $TZ in /etc/TZ:
+    if (ianaId.isEmpty()) {
+        QFile zone(QStringLiteral("/etc/TZ"));
+        if (zone.open(QIODevice::ReadOnly))
+            ianaId = zone.readAll().trimmed();
+    }
+
     // Give up for now and return UTC
     if (ianaId.isEmpty())
         ianaId = utcQByteArray();
diff --git a/src/corelib/tools/qtools_p.h b/src/corelib/tools/qtools_p.h
index 17d2ab852a..b239987871 100644
--- a/src/corelib/tools/qtools_p.h
+++ b/src/corelib/tools/qtools_p.h
@@ -57,17 +57,17 @@
 QT_BEGIN_NAMESPACE
 
 namespace QtMiscUtils {
-Q_DECL_CONSTEXPR inline char toHexUpper(uint value) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline char toHexUpper(uint value) noexcept
 {
     return "0123456789ABCDEF"[value & 0xF];
 }
 
-Q_DECL_CONSTEXPR inline char toHexLower(uint value) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline char toHexLower(uint value) noexcept
 {
     return "0123456789abcdef"[value & 0xF];
 }
 
-Q_DECL_CONSTEXPR inline int fromHex(uint c) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int fromHex(uint c) noexcept
 {
     return ((c >= '0') && (c <= '9')) ? int(c - '0') :
            ((c >= 'A') && (c <= 'F')) ? int(c - 'A' + 10) :
@@ -75,12 +75,12 @@ Q_DECL_CONSTEXPR inline int fromHex(uint c) Q_DECL_NOTHROW
            /* otherwise */              -1;
 }
 
-Q_DECL_CONSTEXPR inline char toOct(uint value) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline char toOct(uint value) noexcept
 {
     return '0' + char(value & 0x7);
 }
 
-Q_DECL_CONSTEXPR inline int fromOct(uint c) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline int fromOct(uint c) noexcept
 {
     return ((c >= '0') && (c <= '7')) ? int(c - '0') : -1;
 }
@@ -98,9 +98,9 @@ struct CalculateGrowingBlockSizeResult {
 
 // implemented in qbytearray.cpp
 size_t Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
-qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) Q_DECL_NOTHROW;
+qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) noexcept;
 CalculateGrowingBlockSizeResult Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
-qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) Q_DECL_NOTHROW ;
+qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) noexcept ;
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/tools/qunicodetables.cpp b/src/corelib/tools/qunicodetables.cpp
index 4c4821802d..d57b39ff1f 100644
--- a/src/corelib/tools/qunicodetables.cpp
+++ b/src/corelib/tools/qunicodetables.cpp
@@ -8803,42 +8803,42 @@ static const Properties uc_properties[] = {
     { 12, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 12, 0 }
 };
 
-Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(uint ucs4) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(uint ucs4) noexcept
 {
     return uc_properties + GET_PROP_INDEX(ucs4);
 }
 
-Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(ushort ucs2) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(ushort ucs2) noexcept
 {
     return uc_properties + GET_PROP_INDEX_UCS2(ucs2);
 }
 
-Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) noexcept
 {
     return qGetProp(ucs4);
 }
 
-Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) noexcept
 {
     return qGetProp(ucs2);
 }
 
-Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) Q_DECL_NOTHROW
+Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) noexcept
 {
     return static_cast<GraphemeBreakClass>(qGetProp(ucs4)->graphemeBreakClass);
 }
 
-Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) Q_DECL_NOTHROW
+Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) noexcept
 {
     return static_cast<WordBreakClass>(qGetProp(ucs4)->wordBreakClass);
 }
 
-Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) Q_DECL_NOTHROW
+Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) noexcept
 {
     return static_cast<SentenceBreakClass>(qGetProp(ucs4)->sentenceBreakClass);
 }
 
-Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) Q_DECL_NOTHROW
+Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) noexcept
 {
     return static_cast<LineBreakClass>(qGetProp(ucs4)->lineBreakClass);
 }
diff --git a/src/corelib/tools/qunicodetables_p.h b/src/corelib/tools/qunicodetables_p.h
index 3f2e91a9b2..cb7a211cb6 100644
--- a/src/corelib/tools/qunicodetables_p.h
+++ b/src/corelib/tools/qunicodetables_p.h
@@ -93,8 +93,8 @@ struct Properties {
     ushort script              : 8;
 };
 
-Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) Q_DECL_NOTHROW;
-Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) Q_DECL_NOTHROW;
+Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) noexcept;
+Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) noexcept;
 
 struct LowercaseTraits
 {
@@ -209,20 +209,20 @@ enum LineBreakClass {
     NumLineBreakClasses
 };
 
-Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) Q_DECL_NOTHROW;
-inline GraphemeBreakClass graphemeBreakClass(QChar ch) Q_DECL_NOTHROW
+Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) noexcept;
+inline GraphemeBreakClass graphemeBreakClass(QChar ch) noexcept
 { return graphemeBreakClass(ch.unicode()); }
 
-Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) Q_DECL_NOTHROW;
-inline WordBreakClass wordBreakClass(QChar ch) Q_DECL_NOTHROW
+Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) noexcept;
+inline WordBreakClass wordBreakClass(QChar ch) noexcept
 { return wordBreakClass(ch.unicode()); }
 
-Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) Q_DECL_NOTHROW;
-inline SentenceBreakClass sentenceBreakClass(QChar ch) Q_DECL_NOTHROW
+Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) noexcept;
+inline SentenceBreakClass sentenceBreakClass(QChar ch) noexcept
 { return sentenceBreakClass(ch.unicode()); }
 
-Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) Q_DECL_NOTHROW;
-inline LineBreakClass lineBreakClass(QChar ch) Q_DECL_NOTHROW
+Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) noexcept;
+inline LineBreakClass lineBreakClass(QChar ch) noexcept
 { return lineBreakClass(ch.unicode()); }
 
 } // namespace QUnicodeTables
diff --git a/src/corelib/tools/qunicodetools.cpp b/src/corelib/tools/qunicodetools.cpp
index c9d0868fef..d14118abf7 100644
--- a/src/corelib/tools/qunicodetools.cpp
+++ b/src/corelib/tools/qunicodetools.cpp
@@ -542,7 +542,7 @@ static const uchar breakTable[QUnicodeTables::LineBreak_SA][QUnicodeTables::Line
 
 } // namespace LB
 
-static void getLineBreaks(const ushort *string, quint32 len, QCharAttributes *attributes)
+static void getLineBreaks(const ushort *string, quint32 len, QCharAttributes *attributes, QUnicodeTools::CharAttributeOptions options)
 {
     quint32 nestart = 0;
     LB::NS::Class nelast = LB::NS::XX;
@@ -564,6 +564,31 @@ static void getLineBreaks(const ushort *string, quint32 len, QCharAttributes *at
         QUnicodeTables::LineBreakClass ncls = (QUnicodeTables::LineBreakClass) prop->lineBreakClass;
         QUnicodeTables::LineBreakClass tcls;
 
+        if (options & QUnicodeTools::HangulLineBreakTailoring) {
+            if (Q_UNLIKELY((ncls >= QUnicodeTables::LineBreak_H2
+                        &&  ncls <= QUnicodeTables::LineBreak_JT)
+                        || (ucs4 >= 0x3130 && ucs4 <= 0x318F && ncls == QUnicodeTables::LineBreak_ID))
+                    ) {
+                // LB27: use SPACE for line breaking
+                // "When Korean uses SPACE for line breaking, the classes in rule LB26,
+                // as well as characters of class ID, are often tailored to AL; see Section 8, Customization."
+                // In case of Korean syllables: "3130..318F  HANGUL COMPATIBILITY JAMO"
+                ncls = QUnicodeTables::LineBreak_AL;
+            } else {
+                if (Q_UNLIKELY(ncls == QUnicodeTables::LineBreak_SA)) {
+                    // LB1: resolve SA to AL, except of those that have Category Mn or Mc be resolved to CM
+                    static const int test = FLAG(QChar::Mark_NonSpacing) | FLAG(QChar::Mark_SpacingCombining);
+                    if (FLAG(prop->category) & test)
+                        ncls = QUnicodeTables::LineBreak_CM;
+                }
+                if (Q_UNLIKELY(ncls == QUnicodeTables::LineBreak_CM)) {
+                    // LB10: treat CM that follows SP, BK, CR, LF, NL, or ZW as AL
+                    if (lcls == QUnicodeTables::LineBreak_ZW || lcls >= QUnicodeTables::LineBreak_SP)
+                        ncls = QUnicodeTables::LineBreak_AL;
+                }
+            }
+        }
+
         if (Q_UNLIKELY(ncls == QUnicodeTables::LineBreak_SA)) {
             // LB1: resolve SA to AL, except of those that have Category Mn or Mc be resolved to CM
             static const int test = FLAG(QChar::Mark_NonSpacing) | FLAG(QChar::Mark_SpacingCombining);
@@ -716,7 +741,7 @@ Q_CORE_EXPORT void initCharAttributes(const ushort *string, int length,
     if (options & SentenceBreaks)
         getSentenceBreaks(string, length, attributes);
     if (options & LineBreaks)
-        getLineBreaks(string, length, attributes);
+        getLineBreaks(string, length, attributes, options);
     if (options & WhiteSpaces)
         getWhiteSpaces(string, length, attributes);
 
diff --git a/src/corelib/tools/qunicodetools_p.h b/src/corelib/tools/qunicodetools_p.h
index 5e2d56a226..ed6fcb5d65 100644
--- a/src/corelib/tools/qunicodetools_p.h
+++ b/src/corelib/tools/qunicodetools_p.h
@@ -88,6 +88,7 @@ enum CharAttributeOption {
     SentenceBreaks = 0x04,
     LineBreaks = 0x08,
     WhiteSpaces = 0x10,
+    HangulLineBreakTailoring = 0x20,
     DefaultOptionsCompat = GraphemeBreaks | LineBreaks | WhiteSpaces, // ### remove
 
     DontClearAttributes = 0x1000
diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index 597e7464cb..01fc63b677 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -43,15 +43,14 @@
 #include <QtCore/qcontainerfwd.h>
 #include <QtCore/qglobal.h>
 #include <QtCore/qalgorithms.h>
+#include <QtCore/qcontainertools_impl.h>
 
-#include <new>
-#include <string.h>
-#include <stdlib.h>
 #include <algorithm>
-#ifdef Q_COMPILER_INITIALIZER_LISTS
 #include <initializer_list>
-#endif
 #include <iterator>
+#include <new>
+#include <string.h>
+#include <stdlib.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -69,14 +68,18 @@ public:
         append(other.constData(), other.size());
     }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QVarLengthArray(std::initializer_list<T> args)
-        : a(Prealloc), s(0), ptr(reinterpret_cast<T *>(array))
+        : QVarLengthArray(args.begin(), args.end())
+    {
+    }
+
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    inline QVarLengthArray(InputIterator first, InputIterator last)
+        : QVarLengthArray()
     {
-        if (args.size())
-            append(args.begin(), int(args.size()));
+        QtPrivate::reserveIfForwardIterator(this, first, last);
+        std::copy(first, last, std::back_inserter(*this));
     }
-#endif
 
     inline ~QVarLengthArray() {
         if (QTypeInfo<T>::isComplex) {
@@ -96,7 +99,6 @@ public:
         return *this;
     }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QVarLengthArray<T, Prealloc> &operator=(std::initializer_list<T> list)
     {
         resize(list.size());
@@ -104,7 +106,6 @@ public:
                   QT_MAKE_CHECKED_ARRAY_ITERATOR(this->begin(), this->size()));
         return *this;
     }
-#endif
 
     inline void removeLast() {
         Q_ASSERT(s > 0);
@@ -570,7 +571,7 @@ bool operator!=(const QVarLengthArray<T, Prealloc1> &l, const QVarLengthArray<T,
 
 template <typename T, int Prealloc1, int Prealloc2>
 bool operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
+    noexcept(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
                                                                rhs.begin(), rhs.end())))
 {
     return std::lexicographical_compare(lhs.begin(), lhs.end(),
@@ -579,21 +580,21 @@ bool operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T
 
 template <typename T, int Prealloc1, int Prealloc2>
 inline bool operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return rhs < lhs;
 }
 
 template <typename T, int Prealloc1, int Prealloc2>
 inline bool operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs > rhs);
 }
 
 template <typename T, int Prealloc1, int Prealloc2>
 inline bool operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs < rhs);
 }
diff --git a/src/corelib/tools/qvarlengtharray.qdoc b/src/corelib/tools/qvarlengtharray.qdoc
index bc8df82517..80769e3769 100644
--- a/src/corelib/tools/qvarlengtharray.qdoc
+++ b/src/corelib/tools/qvarlengtharray.qdoc
@@ -110,6 +110,14 @@
     lists.
 */
 
+/*! \fn template<class T, int Prealloc> template<typename InputIterator> QVarLengthArray<T, Prealloc>::QVarLengthArray(InputIterator first, InputIterator last)
+    \since 5.14
+
+    Constructs an array with the contents in the iterator range [\a first, \a last).
+
+    The value type of \c InputIterator must be convertible to \c T.
+*/
+
 
 /*! \fn template<class T, int Prealloc> QVarLengthArray<T, Prealloc>::~QVarLengthArray()
 
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h
index 988d5a9e1b..492afeac75 100644
--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@@ -45,14 +45,15 @@
 #include <QtCore/qrefcount.h>
 #include <QtCore/qarraydata.h>
 #include <QtCore/qhashfunctions.h>
+#include <QtCore/qcontainertools_impl.h>
 
 #include <iterator>
+#include <initializer_list>
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
 #include <vector>
+#endif
 #include <stdlib.h>
 #include <string.h>
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-#include <initializer_list>
-#endif
 
 #include <algorithm>
 
@@ -65,21 +66,21 @@ class QVector
     Data *d;
 
 public:
-    inline QVector() Q_DECL_NOTHROW : d(Data::sharedNull()) { }
+    inline QVector() noexcept : d(Data::sharedNull()) { }
     explicit QVector(int size);
     QVector(int size, const T &t);
     inline QVector(const QVector<T> &v);
     inline ~QVector() { if (!d->ref.deref()) freeData(d); }
     QVector<T> &operator=(const QVector<T> &v);
-#if defined(Q_COMPILER_RVALUE_REFS) || defined(Q_CLANG_QDOC)
-    QVector(QVector<T> &&other) Q_DECL_NOTHROW : d(other.d) { other.d = Data::sharedNull(); }
-    QVector<T> &operator=(QVector<T> &&other) Q_DECL_NOTHROW
+    QVector(QVector<T> &&other) noexcept : d(other.d) { other.d = Data::sharedNull(); }
+    QVector<T> &operator=(QVector<T> &&other) noexcept
     { QVector moved(std::move(other)); swap(moved); return *this; }
-#endif
-    void swap(QVector<T> &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
-#ifdef Q_COMPILER_INITIALIZER_LISTS
+    void swap(QVector<T> &other) noexcept { qSwap(d, other.d); }
     inline QVector(std::initializer_list<T> args);
-#endif
+    QVector<T> &operator=(std::initializer_list<T> args);
+    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    inline QVector(InputIterator first, InputIterator last);
+
     bool operator==(const QVector<T> &v) const;
     inline bool operator!=(const QVector<T> &v) const { return !(*this == v); }
 
@@ -138,9 +139,7 @@ public:
     T &operator[](int i);
     const T &operator[](int i) const;
     void append(const T &t);
-#if defined(Q_COMPILER_RVALUE_REFS) || defined(Q_CLANG_QDOC)
     void append(T &&t);
-#endif
     inline void append(const QVector<T> &l) { *this += l; }
     void prepend(T &&t);
     void prepend(const T &t);
@@ -208,29 +207,29 @@ public:
     typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 #if !defined(QT_STRICT_ITERATORS) || defined(Q_CLANG_QDOC)
     inline iterator begin() { detach(); return d->begin(); }
-    inline const_iterator begin() const Q_DECL_NOTHROW { return d->constBegin(); }
-    inline const_iterator cbegin() const Q_DECL_NOTHROW { return d->constBegin(); }
-    inline const_iterator constBegin() const Q_DECL_NOTHROW { return d->constBegin(); }
+    inline const_iterator begin() const noexcept { return d->constBegin(); }
+    inline const_iterator cbegin() const noexcept { return d->constBegin(); }
+    inline const_iterator constBegin() const noexcept { return d->constBegin(); }
     inline iterator end() { detach(); return d->end(); }
-    inline const_iterator end() const Q_DECL_NOTHROW { return d->constEnd(); }
-    inline const_iterator cend() const Q_DECL_NOTHROW { return d->constEnd(); }
-    inline const_iterator constEnd() const Q_DECL_NOTHROW { return d->constEnd(); }
+    inline const_iterator end() const noexcept { return d->constEnd(); }
+    inline const_iterator cend() const noexcept { return d->constEnd(); }
+    inline const_iterator constEnd() const noexcept { return d->constEnd(); }
 #else
     inline iterator begin(iterator = iterator()) { detach(); return d->begin(); }
-    inline const_iterator begin(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constBegin(); }
-    inline const_iterator cbegin(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constBegin(); }
-    inline const_iterator constBegin(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constBegin(); }
+    inline const_iterator begin(const_iterator = const_iterator()) const noexcept { return d->constBegin(); }
+    inline const_iterator cbegin(const_iterator = const_iterator()) const noexcept { return d->constBegin(); }
+    inline const_iterator constBegin(const_iterator = const_iterator()) const noexcept { return d->constBegin(); }
     inline iterator end(iterator = iterator()) { detach(); return d->end(); }
-    inline const_iterator end(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constEnd(); }
-    inline const_iterator cend(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constEnd(); }
-    inline const_iterator constEnd(const_iterator = const_iterator()) const Q_DECL_NOTHROW { return d->constEnd(); }
+    inline const_iterator end(const_iterator = const_iterator()) const noexcept { return d->constEnd(); }
+    inline const_iterator cend(const_iterator = const_iterator()) const noexcept { return d->constEnd(); }
+    inline const_iterator constEnd(const_iterator = const_iterator()) const noexcept { return d->constEnd(); }
 #endif
     reverse_iterator rbegin() { return reverse_iterator(end()); }
     reverse_iterator rend() { return reverse_iterator(begin()); }
-    const_reverse_iterator rbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
     iterator insert(iterator before, int n, const T &x);
     inline iterator insert(iterator before, const T &x) { return insert(before, 1, x); }
     inline iterator insert(iterator before, T &&x);
@@ -252,6 +251,13 @@ public:
     T value(int i) const;
     T value(int i, const T &defaultValue) const;
 
+    void swapItemsAt(int i, int j) {
+        Q_ASSERT_X(i >= 0 && i < size() && j >= 0 && j < size(),
+                    "QVector<T>::swap", "index out of range");
+        detach();
+        qSwap(d->begin()[i], d->begin()[j]);
+    }
+
     // STL compatibility
     typedef T value_type;
     typedef value_type* pointer;
@@ -263,10 +269,8 @@ public:
     typedef const_iterator ConstIterator;
     typedef int size_type;
     inline void push_back(const T &t) { append(t); }
-#if defined(Q_COMPILER_RVALUE_REFS) || defined(Q_CLANG_QDOC)
     void push_back(T &&t) { append(std::move(t)); }
     void push_front(T &&t) { prepend(std::move(t)); }
-#endif
     inline void push_front(const T &t) { prepend(t); }
     void pop_back() { removeLast(); }
     void pop_front() { removeFirst(); }
@@ -293,14 +297,17 @@ public:
     inline QVector<T> &operator<<(T &&t)
     { append(std::move(t)); return *this; }
 
-    QList<T> toList() const;
-
     static QVector<T> fromList(const QList<T> &list);
+    QList<T> toList() const;
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+    Q_DECL_DEPRECATED_X("Use QVector<T>(vector.begin(), vector.end()) instead.")
     static inline QVector<T> fromStdVector(const std::vector<T> &vector)
     { QVector<T> tmp; tmp.reserve(int(vector.size())); std::copy(vector.begin(), vector.end(), std::back_inserter(tmp)); return tmp; }
+    Q_DECL_DEPRECATED_X("Use std::vector<T>(vector.begin(), vector.end()) instead.")
     inline std::vector<T> toStdVector() const
     { return std::vector<T>(d->begin(), d->end()); }
+#endif
 private:
     // ### Qt6: remove methods, they are unused
     void reallocData(const int size, const int alloc, QArrayData::AllocationOptions options = QArrayData::Default);
@@ -522,11 +529,10 @@ QVector<T>::QVector(int asize, const T &t)
     }
 }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-# if defined(Q_CC_MSVC)
+#if defined(Q_CC_MSVC)
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_MSVC(4127) // conditional expression is constant
-# endif // Q_CC_MSVC
+#endif // Q_CC_MSVC
 
 template <typename T>
 QVector<T>::QVector(std::initializer_list<T> args)
@@ -542,10 +548,27 @@ QVector<T>::QVector(std::initializer_list<T> args)
         d = Data::sharedNull();
     }
 }
-# if defined(Q_CC_MSVC)
+
+template <typename T>
+QVector<T> &QVector<T>::operator=(std::initializer_list<T> args)
+{
+    QVector<T> tmp(args);
+    tmp.swap(*this);
+    return *this;
+}
+
+#if defined(Q_CC_MSVC)
 QT_WARNING_POP
-# endif // Q_CC_MSVC
-#endif // Q_COMPILER_INITALIZER_LISTS
+#endif // Q_CC_MSVC
+
+template <typename T>
+template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator>>
+QVector<T>::QVector(InputIterator first, InputIterator last)
+    : QVector()
+{
+    QtPrivate::reserveIfForwardIterator(this, first, last);
+    std::copy(first, last, std::back_inserter(*this));
+}
 
 template <typename T>
 void QVector<T>::freeData(Data *x)
@@ -763,9 +786,9 @@ void QVector<T>::append(const T &t)
         realloc(isTooSmall ? d->size + 1 : d->alloc, opt);
 
         if (QTypeInfo<T>::isComplex)
-            new (d->end()) T(qMove(copy));
+            new (d->end()) T(std::move(copy));
         else
-            *d->end() = qMove(copy);
+            *d->end() = std::move(copy);
 
     } else {
         if (QTypeInfo<T>::isComplex)
@@ -776,7 +799,6 @@ void QVector<T>::append(const T &t)
     ++d->size;
 }
 
-#ifdef Q_COMPILER_RVALUE_REFS
 template <typename T>
 void QVector<T>::append(T &&t)
 {
@@ -790,7 +812,6 @@ void QVector<T>::append(T &&t)
 
     ++d->size;
 }
-#endif
 
 template <typename T>
 void QVector<T>::removeLast()
@@ -1052,14 +1073,14 @@ Q_DECLARE_MUTABLE_SEQUENTIAL_ITERATOR(Vector)
 
 template <typename T>
 uint qHash(const QVector<T> &key, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHashRange(key.cbegin(), key.cend(), seed)))
+    noexcept(noexcept(qHashRange(key.cbegin(), key.cend(), seed)))
 {
     return qHashRange(key.cbegin(), key.cend(), seed);
 }
 
 template <typename T>
 bool operator<(const QVector<T> &lhs, const QVector<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
+    noexcept(noexcept(std::lexicographical_compare(lhs.begin(), lhs.end(),
                                                                rhs.begin(), rhs.end())))
 {
     return std::lexicographical_compare(lhs.begin(), lhs.end(),
@@ -1068,21 +1089,21 @@ bool operator<(const QVector<T> &lhs, const QVector<T> &rhs)
 
 template <typename T>
 inline bool operator>(const QVector<T> &lhs, const QVector<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return rhs < lhs;
 }
 
 template <typename T>
 inline bool operator<=(const QVector<T> &lhs, const QVector<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs > rhs);
 }
 
 template <typename T>
 inline bool operator>=(const QVector<T> &lhs, const QVector<T> &rhs)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(lhs < rhs))
+    noexcept(noexcept(lhs < rhs))
 {
     return !(lhs < rhs);
 }
diff --git a/src/corelib/tools/qvector.qdoc b/src/corelib/tools/qvector.qdoc
index 75b17a4207..c1b5054f93 100644
--- a/src/corelib/tools/qvector.qdoc
+++ b/src/corelib/tools/qvector.qdoc
@@ -243,6 +243,13 @@
     lists.
 */
 
+/*! \fn template <typename T> template<typename InputIterator> QVector<T>::QVector(InputIterator first, InputIterator last)
+    \since 5.14
+
+    Constructs a vector with the contents in the iterator range [\a first, \a last).
+
+    The value type of \c InputIterator must be convertible to \c T.
+*/
 
 /*! \fn template <typename T> QVector<T>::~QVector()
 
@@ -263,6 +270,17 @@
     \since 5.2
 */
 
+/*!
+    \fn template <typename T> QVector<T> &QVector<T>::operator=(std::initializer_list<T> args)
+
+    Assigns the collection of values in \a args to this QVector instance.
+
+    This operator is only enabled if the compiler supports C++11 initializer
+    lists.
+
+    \since 5.14
+*/
+
 /*! \fn template <typename T> void QVector<T>::swap(QVector<T> &other)
     \since 4.8
 
@@ -270,6 +288,16 @@
     never fails.
 */
 
+/*! \fn template <typename T> void QVector<T>::swapItemsAt(int i, int j)
+    \since 5.14
+
+    Exchange the item at index position \a i with the item at index
+    position \a j. This function assumes that both \a i and \a j are
+    at least 0 but less than size(). To avoid failure, test that both
+    \a i and \a j are at least 0 and less than size().
+*/
+
+
 /*! \fn template <typename T> bool QVector<T>::operator==(const QVector<T> &other) const
 
     Returns \c true if \a other is equal to this vector; otherwise
diff --git a/src/corelib/tools/qversionnumber.cpp b/src/corelib/tools/qversionnumber.cpp
index b96e48252e..58e3c15560 100644
--- a/src/corelib/tools/qversionnumber.cpp
+++ b/src/corelib/tools/qversionnumber.cpp
@@ -235,7 +235,7 @@ QVersionNumber QVersionNumber::normalized() const
 
     \sa commonPrefix()
 */
-bool QVersionNumber::isPrefixOf(const QVersionNumber &other) const Q_DECL_NOTHROW
+bool QVersionNumber::isPrefixOf(const QVersionNumber &other) const noexcept
 {
     if (segmentCount() > other.segmentCount())
         return false;
@@ -259,7 +259,7 @@ bool QVersionNumber::isPrefixOf(const QVersionNumber &other) const Q_DECL_NOTHRO
 
     \snippet qversionnumber/main.cpp 1
 */
-int QVersionNumber::compare(const QVersionNumber &v1, const QVersionNumber &v2) Q_DECL_NOTHROW
+int QVersionNumber::compare(const QVersionNumber &v1, const QVersionNumber &v2) noexcept
 {
     int commonlen;
 
@@ -482,7 +482,7 @@ QVersionNumber QVersionNumber::fromString(QLatin1String string, int *suffixIndex
     if (suffixIndex)
         *suffixIndex = int(lastGoodEnd - string.begin());
 
-    return QVersionNumber(qMove(seg));
+    return QVersionNumber(std::move(seg));
 }
 
 void QVersionNumber::SegmentStorage::setVector(int len, int maj, int min, int mic)
diff --git a/src/corelib/tools/qversionnumber.h b/src/corelib/tools/qversionnumber.h
index 1bfb4aab39..d43b86ba51 100644
--- a/src/corelib/tools/qversionnumber.h
+++ b/src/corelib/tools/qversionnumber.h
@@ -87,7 +87,7 @@ class QVersionNumber
         };
 
         // set the InlineSegmentMarker and set length to zero
-        SegmentStorage() Q_DECL_NOTHROW : dummy(1) {}
+        SegmentStorage() noexcept : dummy(1) {}
 
         SegmentStorage(const QVector<int> &seg)
         {
@@ -119,14 +119,13 @@ class QVersionNumber
             return *this;
         }
 
-#ifdef Q_COMPILER_RVALUE_REFS
-        SegmentStorage(SegmentStorage &&other) Q_DECL_NOTHROW
+        SegmentStorage(SegmentStorage &&other) noexcept
             : dummy(other.dummy)
         {
             other.dummy = 1;
         }
 
-        SegmentStorage &operator=(SegmentStorage &&other) Q_DECL_NOTHROW
+        SegmentStorage &operator=(SegmentStorage &&other) noexcept
         {
             qSwap(dummy, other.dummy);
             return *this;
@@ -139,8 +138,6 @@ class QVersionNumber
             else
                 pointer_segments = new QVector<int>(std::move(seg));
         }
-#endif
-#ifdef Q_COMPILER_INITIALIZER_LISTS
         SegmentStorage(std::initializer_list<int> args)
         {
             if (dataFitsInline(args.begin(), int(args.size()))) {
@@ -149,14 +146,13 @@ class QVersionNumber
                 pointer_segments = new QVector<int>(args);
             }
         }
-#endif
 
         ~SegmentStorage() { if (isUsingPointer()) delete pointer_segments; }
 
-        bool isUsingPointer() const Q_DECL_NOTHROW
+        bool isUsingPointer() const noexcept
         { return (inline_segments[InlineSegmentMarker] & 1) == 0; }
 
-        int size() const Q_DECL_NOTHROW
+        int size() const noexcept
         { return isUsingPointer() ? pointer_segments->size() : (inline_segments[InlineSegmentMarker] >> 1); }
 
         void setInlineSize(int len)
@@ -218,7 +214,7 @@ class QVersionNumber
     } m_segments;
 
 public:
-    inline QVersionNumber() Q_DECL_NOTHROW
+    inline QVersionNumber() noexcept
         : m_segments()
     {}
     inline explicit QVersionNumber(const QVector<int> &seg)
@@ -227,17 +223,13 @@ public:
 
     // compiler-generated copy/move ctor/assignment operators and the destructor are ok
 
-#ifdef Q_COMPILER_RVALUE_REFS
     explicit QVersionNumber(QVector<int> &&seg)
         : m_segments(std::move(seg))
     {}
-#endif
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     inline QVersionNumber(std::initializer_list<int> args)
         : m_segments(args)
     {}
-#endif
 
     inline explicit QVersionNumber(int maj)
     { m_segments.setSegments(1, maj); }
@@ -248,34 +240,34 @@ public:
     inline explicit QVersionNumber(int maj, int min, int mic)
     { m_segments.setSegments(3, maj, min, mic); }
 
-    Q_REQUIRED_RESULT inline bool isNull() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool isNull() const noexcept
     { return segmentCount() == 0; }
 
-    Q_REQUIRED_RESULT inline bool isNormalized() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline bool isNormalized() const noexcept
     { return isNull() || segmentAt(segmentCount() - 1) != 0; }
 
-    Q_REQUIRED_RESULT inline int majorVersion() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline int majorVersion() const noexcept
     { return segmentAt(0); }
 
-    Q_REQUIRED_RESULT inline int minorVersion() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline int minorVersion() const noexcept
     { return segmentAt(1); }
 
-    Q_REQUIRED_RESULT inline int microVersion() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline int microVersion() const noexcept
     { return segmentAt(2); }
 
     Q_REQUIRED_RESULT Q_CORE_EXPORT QVersionNumber normalized() const;
 
     Q_REQUIRED_RESULT Q_CORE_EXPORT QVector<int> segments() const;
 
-    Q_REQUIRED_RESULT inline int segmentAt(int index) const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline int segmentAt(int index) const noexcept
     { return (m_segments.size() > index) ? m_segments.at(index) : 0; }
 
-    Q_REQUIRED_RESULT inline int segmentCount() const Q_DECL_NOTHROW
+    Q_REQUIRED_RESULT inline int segmentCount() const noexcept
     { return m_segments.size(); }
 
-    Q_REQUIRED_RESULT Q_CORE_EXPORT bool isPrefixOf(const QVersionNumber &other) const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT Q_CORE_EXPORT bool isPrefixOf(const QVersionNumber &other) const noexcept;
 
-    Q_REQUIRED_RESULT Q_CORE_EXPORT static int compare(const QVersionNumber &v1, const QVersionNumber &v2) Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT Q_CORE_EXPORT static int compare(const QVersionNumber &v1, const QVersionNumber &v2) noexcept;
 
     Q_REQUIRED_RESULT Q_CORE_EXPORT static Q_DECL_PURE_FUNCTION QVersionNumber commonPrefix(const QVersionNumber &v1, const QVersionNumber &v2);
 
@@ -299,22 +291,22 @@ Q_DECLARE_TYPEINFO(QVersionNumber, Q_MOVABLE_TYPE);
 Q_CORE_EXPORT QDebug operator<<(QDebug, const QVersionNumber &version);
 #endif
 
-Q_REQUIRED_RESULT inline bool operator> (const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator> (const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) > 0; }
 
-Q_REQUIRED_RESULT inline bool operator>=(const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator>=(const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) >= 0; }
 
-Q_REQUIRED_RESULT inline bool operator< (const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator< (const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) < 0; }
 
-Q_REQUIRED_RESULT inline bool operator<=(const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator<=(const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) <= 0; }
 
-Q_REQUIRED_RESULT inline bool operator==(const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator==(const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) == 0; }
 
-Q_REQUIRED_RESULT inline bool operator!=(const QVersionNumber &lhs, const QVersionNumber &rhs) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool operator!=(const QVersionNumber &lhs, const QVersionNumber &rhs) noexcept
 { return QVersionNumber::compare(lhs, rhs) != 0; }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/tools/tools.pri b/src/corelib/tools/tools.pri
index 995bab694e..5dcb6c9ee0 100644
--- a/src/corelib/tools/tools.pri
+++ b/src/corelib/tools/tools.pri
@@ -18,6 +18,7 @@ HEADERS +=  \
         tools/qcollator.h \
         tools/qcollator_p.h \
         tools/qcontainerfwd.h \
+        tools/qcontainertools_impl.h \
         tools/qcryptographichash.h \
         tools/qdatetime.h \
         tools/qdatetime_p.h \
diff --git a/src/dbus/dbus.pro b/src/dbus/dbus.pro
index 920a04315d..2cfd7e086c 100644
--- a/src/dbus/dbus.pro
+++ b/src/dbus/dbus.pro
@@ -9,11 +9,11 @@ qtConfig(dbus-linked) {
 }
 
 win32 { 
-    LIBS_PRIVATE += \
-        -lws2_32 \
-        -ladvapi32 \
-        -lnetapi32 \
-        -luser32
+    QMAKE_USE_PRIVATE += \
+        advapi32 \
+        netapi32 \
+        user32 \
+        ws2_32
 }
 
 DEFINES += QT_NO_FOREACH
diff --git a/src/dbus/qdbusabstractinterface.cpp b/src/dbus/qdbusabstractinterface.cpp
index 148bd54147..220223d74d 100644
--- a/src/dbus/qdbusabstractinterface.cpp
+++ b/src/dbus/qdbusabstractinterface.cpp
@@ -66,11 +66,11 @@ namespace {
 // of to QDBusAbstractInterface::customEvent.
 // See solution in Patch Set 1 of this change in the Qt Gerrit servers.
 // (https://codereview.qt-project.org/#/c/126384/1)
-class DisconnectRelayEvent : public QMetaCallEvent
+class DisconnectRelayEvent : public QAbstractMetaCallEvent
 {
 public:
     DisconnectRelayEvent(QObject *sender, const QMetaMethod &m)
-        : QMetaCallEvent(0, 0, nullptr, sender, m.methodIndex())
+        : QAbstractMetaCallEvent(sender, m.methodIndex())
     {}
 
     void placeMetaCall(QObject *object) override
@@ -185,7 +185,7 @@ bool QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp, void *retu
     if (reply.signature() != QLatin1String("v")) {
         QString errmsg = QLatin1String("Invalid signature `%1' in return from call to "
                                        DBUS_INTERFACE_PROPERTIES);
-        lastError = QDBusError(QDBusError::InvalidSignature, qMove(errmsg).arg(reply.signature()));
+        lastError = QDBusError(QDBusError::InvalidSignature, std::move(errmsg).arg(reply.signature()));
         return false;
     }
 
diff --git a/src/dbus/qdbusargument.h b/src/dbus/qdbusargument.h
index 94a89a4e08..b7cd4c8989 100644
--- a/src/dbus/qdbusargument.h
+++ b/src/dbus/qdbusargument.h
@@ -76,14 +76,12 @@ public:
 
     QDBusArgument();
     QDBusArgument(const QDBusArgument &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDBusArgument(QDBusArgument &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
-    QDBusArgument &operator=(QDBusArgument &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusArgument(QDBusArgument &&other) noexcept : d(other.d) { other.d = nullptr; }
+    QDBusArgument &operator=(QDBusArgument &&other) noexcept { swap(other); return *this; }
     QDBusArgument &operator=(const QDBusArgument &other);
     ~QDBusArgument();
 
-    void swap(QDBusArgument &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDBusArgument &other) noexcept { qSwap(d, other.d); }
 
     // used for marshalling (Qt -> D-BUS)
     QDBusArgument &operator<<(uchar arg);
diff --git a/src/dbus/qdbusargument_p.h b/src/dbus/qdbusargument_p.h
index b678b9606f..3553d3d151 100644
--- a/src/dbus/qdbusargument_p.h
+++ b/src/dbus/qdbusargument_p.h
@@ -71,7 +71,7 @@ class QDBusArgumentPrivate
 {
 public:
     inline QDBusArgumentPrivate(int flags = 0)
-        : message(0), ref(1), capabilities(flags)
+        : message(nullptr), ref(1), capabilities(flags)
     { }
     virtual ~QDBusArgumentPrivate();
 
@@ -104,7 +104,7 @@ public:
 class QDBusMarshaller: public QDBusArgumentPrivate
 {
 public:
-    QDBusMarshaller(int flags) : QDBusArgumentPrivate(flags), parent(0), ba(0), closeCode(0), ok(true), skipSignature(false)
+    QDBusMarshaller(int flags) : QDBusArgumentPrivate(flags), parent(nullptr), ba(nullptr), closeCode(0), ok(true), skipSignature(false)
     { direction = Marshalling; }
     ~QDBusMarshaller();
 
@@ -161,7 +161,7 @@ private:
 class QDBusDemarshaller: public QDBusArgumentPrivate
 {
 public:
-    inline QDBusDemarshaller(int flags) : QDBusArgumentPrivate(flags), parent(0)
+    inline QDBusDemarshaller(int flags) : QDBusArgumentPrivate(flags), parent(nullptr)
     { direction = Demarshalling; }
     ~QDBusDemarshaller();
 
diff --git a/src/dbus/qdbusconnection.h b/src/dbus/qdbusconnection.h
index 3711981f78..368f811602 100644
--- a/src/dbus/qdbusconnection.h
+++ b/src/dbus/qdbusconnection.h
@@ -131,14 +131,12 @@ public:
 
     explicit QDBusConnection(const QString &name);
     QDBusConnection(const QDBusConnection &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDBusConnection(QDBusConnection &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
-    QDBusConnection &operator=(QDBusConnection &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusConnection(QDBusConnection &&other) noexcept : d(other.d) { other.d = nullptr; }
+    QDBusConnection &operator=(QDBusConnection &&other) noexcept { swap(other); return *this; }
     QDBusConnection &operator=(const QDBusConnection &other);
     ~QDBusConnection();
 
-    void swap(QDBusConnection &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDBusConnection &other) noexcept { qSwap(d, other.d); }
 
     bool isConnected() const;
     QString baseService() const;
diff --git a/src/dbus/qdbusconnection_p.h b/src/dbus/qdbusconnection_p.h
index 7769b9ea71..da67a6c5d4 100644
--- a/src/dbus/qdbusconnection_p.h
+++ b/src/dbus/qdbusconnection_p.h
@@ -115,7 +115,7 @@ public:
 
     struct Watcher
     {
-        Watcher(): watch(0), read(0), write(0) {}
+        Watcher(): watch(nullptr), read(nullptr), write(nullptr) {}
         DBusWatch *watch;
         QSocketNotifier *read;
         QSocketNotifier *write;
@@ -132,7 +132,7 @@ public:
 
     struct SignalHook
     {
-        inline SignalHook() : obj(0), midx(-1) { }
+        inline SignalHook() : obj(nullptr), midx(-1) { }
         QString service, path, signature;
         QObject* obj;
         int midx;
@@ -150,9 +150,9 @@ public:
     {
         typedef QVector<ObjectTreeNode> DataList;
 
-        inline ObjectTreeNode() : obj(0), flags(0) { }
+        inline ObjectTreeNode() : obj(nullptr), flags(0) { }
         inline ObjectTreeNode(const QString &n) // intentionally implicit
-            : name(n), obj(0), flags(0) { }
+            : name(n), obj(nullptr), flags(0) { }
         inline bool operator<(const QString &other) const
             { return name < other; }
         inline bool operator<(const QStringRef &other) const
@@ -194,7 +194,7 @@ public:
 
 public:
     // public methods are entry points from other objects
-    explicit QDBusConnectionPrivate(QObject *parent = 0);
+    explicit QDBusConnectionPrivate(QObject *parent = nullptr);
     ~QDBusConnectionPrivate();
 
     void createBusService();
diff --git a/src/dbus/qdbuserror.h b/src/dbus/qdbuserror.h
index c264f62b7d..bcf68dbcdc 100644
--- a/src/dbus/qdbuserror.h
+++ b/src/dbus/qdbuserror.h
@@ -98,18 +98,16 @@ public:
 #endif
     QDBusError(ErrorType error, const QString &message);
     QDBusError(const QDBusError &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDBusError(QDBusError &&other) Q_DECL_NOTHROW
+    QDBusError(QDBusError &&other) noexcept
         : code(other.code), msg(std::move(other.msg)), nm(std::move(other.nm))
     {}
-    QDBusError &operator=(QDBusError &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusError &operator=(QDBusError &&other) noexcept { swap(other); return *this; }
     QDBusError &operator=(const QDBusError &other);
 #ifndef QT_BOOTSTRAPPED
     QDBusError &operator=(const QDBusMessage &msg);
 #endif
 
-    void swap(QDBusError &other) Q_DECL_NOTHROW
+    void swap(QDBusError &other) noexcept
     {
         qSwap(code,   other.code);
         qSwap(msg,    other.msg);
diff --git a/src/dbus/qdbusextratypes.h b/src/dbus/qdbusextratypes.h
index 12961e2702..fdac917947 100644
--- a/src/dbus/qdbusextratypes.h
+++ b/src/dbus/qdbusextratypes.h
@@ -59,18 +59,16 @@ class Q_DBUS_EXPORT QDBusObjectPath
 {
     QString m_path;
 public:
-    QDBusObjectPath() Q_DECL_NOTHROW : m_path() {}
+    QDBusObjectPath() noexcept : m_path() {}
     // compiler-generated copy/move constructor/assignment operators are ok!
     // compiler-generated destructor is ok!
 
     inline explicit QDBusObjectPath(const char *path);
     inline explicit QDBusObjectPath(QLatin1String path);
     inline explicit QDBusObjectPath(const QString &path);
-#ifdef Q_COMPILER_RVALUE_REFS
     explicit QDBusObjectPath(QString &&p) : m_path(std::move(p)) { doCheck(); }
-#endif
 
-    void swap(QDBusObjectPath &other) Q_DECL_NOTHROW { qSwap(m_path, other.m_path); }
+    void swap(QDBusObjectPath &other) noexcept { qSwap(m_path, other.m_path); }
 
     inline void setPath(const QString &path);
 
@@ -114,18 +112,16 @@ class Q_DBUS_EXPORT QDBusSignature
 {
     QString m_signature;
 public:
-    QDBusSignature() Q_DECL_NOTHROW : m_signature() {}
+    QDBusSignature() noexcept : m_signature() {}
     // compiler-generated copy/move constructor/assignment operators are ok!
     // compiler-generated destructor is ok!
 
     inline explicit QDBusSignature(const char *signature);
     inline explicit QDBusSignature(QLatin1String signature);
     inline explicit QDBusSignature(const QString &signature);
-#ifdef Q_COMPILER_RVALUE_REFS
     explicit QDBusSignature(QString &&sig) : m_signature(std::move(sig)) { doCheck(); }
-#endif
 
-    void swap(QDBusSignature &other) Q_DECL_NOTHROW { qSwap(m_signature, other.m_signature); }
+    void swap(QDBusSignature &other) noexcept { qSwap(m_signature, other.m_signature); }
 
     inline void setSignature(const QString &signature);
 
@@ -168,16 +164,14 @@ class QDBusVariant
 {
     QVariant m_variant;
 public:
-    QDBusVariant() Q_DECL_NOTHROW : m_variant() {}
+    QDBusVariant() noexcept : m_variant() {}
     // compiler-generated copy/move constructor/assignment operators are ok!
     // compiler-generated destructor is ok!
 
     inline explicit QDBusVariant(const QVariant &variant);
-#ifdef Q_COMPILER_RVALUE_REFS
-    explicit QDBusVariant(QVariant &&v) Q_DECL_NOTHROW : m_variant(std::move(v)) {}
-#endif
+    explicit QDBusVariant(QVariant &&v) noexcept : m_variant(std::move(v)) {}
 
-    void swap(QDBusVariant &other) Q_DECL_NOTHROW { qSwap(m_variant, other.m_variant); }
+    void swap(QDBusVariant &other) noexcept { qSwap(m_variant, other.m_variant); }
 
     inline void setVariant(const QVariant &variant);
 
diff --git a/src/dbus/qdbusintegrator.cpp b/src/dbus/qdbusintegrator.cpp
index 1125480447..16020aabb1 100644
--- a/src/dbus/qdbusintegrator.cpp
+++ b/src/dbus/qdbusintegrator.cpp
@@ -1196,7 +1196,7 @@ void QDBusConnectionPrivate::doDispatch()
             PendingMessageList::Iterator end = pendingMessages.end();
             for ( ; it != end; ++it) {
                 qDBusDebug() << this << "dequeueing message" << *it;
-                handleMessage(qMove(*it));
+                handleMessage(std::move(*it));
             }
             pendingMessages.clear();
         }
diff --git a/src/dbus/qdbusintegrator_p.h b/src/dbus/qdbusintegrator_p.h
index 3cd029a933..87db910d25 100644
--- a/src/dbus/qdbusintegrator_p.h
+++ b/src/dbus/qdbusintegrator_p.h
@@ -86,7 +86,7 @@ struct QDBusSlotCache
         int slotIdx;
         QVector<int> metaTypes;
 
-        void swap(Data &other) Q_DECL_NOTHROW
+        void swap(Data &other) noexcept
         {
             qSwap(flags,     other.flags);
             qSwap(slotIdx,   other.slotIdx);
@@ -96,41 +96,42 @@ struct QDBusSlotCache
     typedef QMultiHash<QString, Data> Hash;
     Hash hash;
 
-    void swap(QDBusSlotCache &other) Q_DECL_NOTHROW { qSwap(hash, other.hash); }
+    void swap(QDBusSlotCache &other) noexcept { qSwap(hash, other.hash); }
 };
 Q_DECLARE_SHARED(QDBusSlotCache::Data)
 Q_DECLARE_SHARED(QDBusSlotCache)
 
-class QDBusCallDeliveryEvent: public QMetaCallEvent
+class QDBusCallDeliveryEvent: public QAbstractMetaCallEvent
 {
 public:
     QDBusCallDeliveryEvent(const QDBusConnection &c, int id, QObject *sender,
                            const QDBusMessage &msg, const QVector<int> &types, int f = 0)
-        : QMetaCallEvent(0, id, 0, sender, -1), connection(c), message(msg), metaTypes(types), flags(f)
+        : QAbstractMetaCallEvent(sender, -1), connection(c), message(msg), metaTypes(types), id(id), flags(f)
         { }
 
     void placeMetaCall(QObject *object) override
     {
-        QDBusConnectionPrivate::d(connection)->deliverCall(object, flags, message, metaTypes, id());
+        QDBusConnectionPrivate::d(connection)->deliverCall(object, flags, message, metaTypes, id);
     }
 
 private:
     QDBusConnection connection; // just for refcounting
     QDBusMessage message;
     QVector<int> metaTypes;
+    int id;
     int flags;
 };
 
-class QDBusActivateObjectEvent: public QMetaCallEvent
+class QDBusActivateObjectEvent: public QAbstractMetaCallEvent
 {
 public:
     QDBusActivateObjectEvent(const QDBusConnection &c, QObject *sender,
                              const QDBusConnectionPrivate::ObjectTreeNode &n,
-                             int p, const QDBusMessage &m, QSemaphore *s = 0)
-        : QMetaCallEvent(0, ushort(-1), 0, sender, -1, 0, 0, 0, s), connection(c), node(n),
+                             int p, const QDBusMessage &m, QSemaphore *s = nullptr)
+        : QAbstractMetaCallEvent(sender, -1, s), connection(c), node(n),
           pathStartPos(p), message(m), handled(false)
         { }
-    ~QDBusActivateObjectEvent();
+    ~QDBusActivateObjectEvent() override;
 
     void placeMetaCall(QObject *) override;
 
@@ -142,15 +143,15 @@ private:
     bool handled;
 };
 
-class QDBusSpyCallEvent : public QMetaCallEvent
+class QDBusSpyCallEvent : public QAbstractMetaCallEvent
 {
 public:
     typedef void (*Hook)(const QDBusMessage&);
     QDBusSpyCallEvent(QDBusConnectionPrivate *cp, const QDBusConnection &c, const QDBusMessage &msg,
                       const Hook *hooks, int count)
-        : QMetaCallEvent(0, 0, nullptr, cp, 0), conn(c), msg(msg), hooks(hooks), hookCount(count)
+        : QAbstractMetaCallEvent(cp, 0), conn(c), msg(msg), hooks(hooks), hookCount(count)
     {}
-    ~QDBusSpyCallEvent();
+    ~QDBusSpyCallEvent() override;
     void placeMetaCall(QObject *) override;
     static inline void invokeSpyHooks(const QDBusMessage &msg, const Hook *hooks, int hookCount);
 
diff --git a/src/dbus/qdbusmessage.h b/src/dbus/qdbusmessage.h
index 23e04045d8..41845317c4 100644
--- a/src/dbus/qdbusmessage.h
+++ b/src/dbus/qdbusmessage.h
@@ -68,13 +68,11 @@ public:
 
     QDBusMessage();
     QDBusMessage(const QDBusMessage &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDBusMessage &operator=(QDBusMessage &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusMessage &operator=(QDBusMessage &&other) noexcept { swap(other); return *this; }
     QDBusMessage &operator=(const QDBusMessage &other);
     ~QDBusMessage();
 
-    void swap(QDBusMessage &other) Q_DECL_NOTHROW { qSwap(d_ptr, other.d_ptr); }
+    void swap(QDBusMessage &other) noexcept { qSwap(d_ptr, other.d_ptr); }
 
     static QDBusMessage createSignal(const QString &path, const QString &interface,
                                      const QString &name);
diff --git a/src/dbus/qdbuspendingcall.h b/src/dbus/qdbuspendingcall.h
index 24b1d6a7ca..dd99346301 100644
--- a/src/dbus/qdbuspendingcall.h
+++ b/src/dbus/qdbuspendingcall.h
@@ -60,12 +60,10 @@ class Q_DBUS_EXPORT QDBusPendingCall
 public:
     QDBusPendingCall(const QDBusPendingCall &other);
     ~QDBusPendingCall();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDBusPendingCall &operator=(QDBusPendingCall &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusPendingCall &operator=(QDBusPendingCall &&other) noexcept { swap(other); return *this; }
     QDBusPendingCall &operator=(const QDBusPendingCall &other);
 
-    void swap(QDBusPendingCall &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDBusPendingCall &other) noexcept { qSwap(d, other.d); }
 
 #ifndef Q_CLANG_QDOC
     // pretend that they aren't here
diff --git a/src/dbus/qdbuspendingcall_p.h b/src/dbus/qdbuspendingcall_p.h
index 10f189ae43..e1f6240f3e 100644
--- a/src/dbus/qdbuspendingcall_p.h
+++ b/src/dbus/qdbuspendingcall_p.h
@@ -99,7 +99,7 @@ public:
     // }
 
     QDBusPendingCallPrivate(const QDBusMessage &sent, QDBusConnectionPrivate *connection)
-        : sentMessage(sent), connection(connection), watcherHelper(0), pending(0)
+        : sentMessage(sent), connection(connection), watcherHelper(nullptr), pending(nullptr)
     { }
     ~QDBusPendingCallPrivate();
     bool setReplyCallback(QObject *target, const char *member);
diff --git a/src/dbus/qdbuspendingreply.h b/src/dbus/qdbuspendingreply.h
index bc5cd92c84..1d7e60ad7f 100644
--- a/src/dbus/qdbuspendingreply.h
+++ b/src/dbus/qdbuspendingreply.h
@@ -156,7 +156,7 @@ public:
     {
         Q_STATIC_ASSERT_X(Index >= 0 && Index < Count, "Index out of bounds");
         typedef typename Select<Index>::Type ResultType;
-        return qdbus_cast<ResultType>(argumentAt(Index), 0);
+        return qdbus_cast<ResultType>(argumentAt(Index), nullptr);
     }
 #endif
 
diff --git a/src/dbus/qdbusunixfiledescriptor.h b/src/dbus/qdbusunixfiledescriptor.h
index ed3209ceda..fcd73b2ec5 100644
--- a/src/dbus/qdbusunixfiledescriptor.h
+++ b/src/dbus/qdbusunixfiledescriptor.h
@@ -46,9 +46,7 @@
 
 #ifndef QT_NO_DBUS
 
-#ifdef Q_COMPILER_RVALUE_REFS
-# include <utility>
-#endif
+#include <utility>
 
 QT_BEGIN_NAMESPACE
 
@@ -61,13 +59,11 @@ public:
     QDBusUnixFileDescriptor();
     explicit QDBusUnixFileDescriptor(int fileDescriptor);
     QDBusUnixFileDescriptor(const QDBusUnixFileDescriptor &other);
-#if defined(Q_COMPILER_RVALUE_REFS)
-    QDBusUnixFileDescriptor &operator=(QDBusUnixFileDescriptor &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDBusUnixFileDescriptor &operator=(QDBusUnixFileDescriptor &&other) noexcept { swap(other); return *this; }
     QDBusUnixFileDescriptor &operator=(const QDBusUnixFileDescriptor &other);
     ~QDBusUnixFileDescriptor();
 
-    void swap(QDBusUnixFileDescriptor &other) Q_DECL_NOTHROW
+    void swap(QDBusUnixFileDescriptor &other) noexcept
     { qSwap(d, other.d); }
 
     bool isValid() const;
diff --git a/src/dbus/qdbusutil_p.h b/src/dbus/qdbusutil_p.h
index 2f187687b8..5a4b461194 100644
--- a/src/dbus/qdbusutil_p.h
+++ b/src/dbus/qdbusutil_p.h
@@ -134,7 +134,7 @@ namespace Q_DBUS_NO_EXPORT QDBusUtil
         return false;
     }
 
-    inline bool checkMemberName(const QString &name, AllowEmptyFlag empty, QDBusError *error, const char *nameType = 0)
+    inline bool checkMemberName(const QString &name, AllowEmptyFlag empty, QDBusError *error, const char *nameType = nullptr)
     {
         if (!nameType) nameType = "member";
         if (name.isEmpty()) {
diff --git a/src/gui/accessible/qaccessible.cpp b/src/gui/accessible/qaccessible.cpp
index 6b825fa001..68e36de24b 100644
--- a/src/gui/accessible/qaccessible.cpp
+++ b/src/gui/accessible/qaccessible.cpp
@@ -1858,7 +1858,7 @@ Q_GUI_EXPORT QDebug operator<<(QDebug d, const QAccessibleInterface *iface)
         return d;
     }
     d.nospace();
-    d << "QAccessibleInterface(" << hex << (const void *) iface << dec;
+    d << "QAccessibleInterface(" << Qt::hex << (const void *) iface << Qt::dec;
     if (iface->isValid()) {
         d << " name=" << iface->text(QAccessible::Name) << ' ';
         d << "role=" << qAccessibleRoleString(iface->role()) << ' ';
@@ -1897,7 +1897,7 @@ QDebug operator<<(QDebug d, const QAccessibleEvent &ev)
     QDebugStateSaver saver(d);
     d.nospace() << "QAccessibleEvent(";
     if (ev.object()) {
-        d.nospace() << "object=" << hex << ev.object() << dec;
+        d.nospace() << "object=" << Qt::hex << ev.object() << Qt::dec;
         d.nospace() << "child=" << ev.child();
     } else {
         d.nospace() << "no object, uniqueId=" << ev.uniqueId();
diff --git a/src/gui/accessible/qaccessiblecache_p.h b/src/gui/accessible/qaccessiblecache_p.h
index a976277c1d..cf1ed04f35 100644
--- a/src/gui/accessible/qaccessiblecache_p.h
+++ b/src/gui/accessible/qaccessiblecache_p.h
@@ -73,7 +73,7 @@ public:
     QAccessibleInterface *interfaceForId(QAccessible::Id id) const;
     QAccessible::Id idForInterface(QAccessibleInterface *iface) const;
     QAccessible::Id insert(QObject *object, QAccessibleInterface *iface) const;
-    void deleteInterface(QAccessible::Id id, QObject *obj = 0);
+    void deleteInterface(QAccessible::Id id, QObject *obj = nullptr);
 
 #ifdef Q_OS_MAC
     QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *elementForId(QAccessible::Id axid) const;
diff --git a/src/gui/configure.json b/src/gui/configure.json
index 6280b4dfa2..912ad741e0 100644
--- a/src/gui/configure.json
+++ b/src/gui/configure.json
@@ -28,9 +28,9 @@
             "lgmon": "boolean",
             "libinput": "boolean",
             "libjpeg": { "type": "enum", "values": [ "no", "qt", "system" ] },
+            "libmd4c": { "type": "enum", "values": [ "no", "qt", "system" ] },
             "libpng": { "type": "enum", "values": [ "no", "qt", "system" ] },
             "linuxfb": "boolean",
-            "mirclient": "boolean",
             "mtdev": "boolean",
             "opengl": { "type": "optionalString", "values": [ "no", "yes", "desktop", "es2", "dynamic" ] },
             "opengl-es-2": { "type": "void", "name": "opengl", "value": "es2" },
@@ -377,6 +377,17 @@
                 "-ljpeg"
             ]
         },
+        "libmd4c": {
+            "label": "libmd4c",
+            "test": {
+                "main": "md_parse(\"hello\", 5, nullptr, nullptr);"
+            },
+            "headers": "md4c.h",
+            "sources": [
+                { "type": "pkgConfig", "args": "md4c" },
+                { "libs": "-lmd4c" }
+            ]
+        },
         "libpng": {
             "label": "libpng",
             "test": {
@@ -395,20 +406,6 @@
                 { "lib": "zlib", "condition": "features.system-zlib" }
             ]
         },
-        "mirclient": {
-            "label": "Mir client libraries",
-            "test": {
-                "tail": "static void surfaceCreateCallback(MirSurface*, void*) {}",
-                "main": [
-                    "u_application_lifecycle_delegate_new();",
-                    "mir_surface_create(0, surfaceCreateCallback, 0);"
-                ]
-            },
-            "headers": [ "mir_toolkit/mir_client_library.h", "ubuntu/application/lifecycle_delegate.h", "EGL/egl.h" ],
-            "sources": [
-                { "type": "pkgConfig", "args": "egl mirclient ubuntu-platform-api libcontent-hub >= 0.2.0" }
-            ]
-        },
         "mtdev": {
             "label": "mtdev",
             "test": {
@@ -491,7 +488,7 @@
         "tslib": {
             "label": "tslib",
             "test": {
-                "main": "ts_open(\"foo\", 0);"
+                "main": "ts_setup(nullptr, 0);"
             },
             "headers": "tslib.h",
             "sources": [
@@ -1297,13 +1294,6 @@
             ],
             "output": [ "privateFeature" ]
         },
-        "mirclient": {
-            "label": "Mir client",
-            "section": "Platform plugins",
-            "autoDetect": false,
-            "condition": "libs.mirclient && features.xkbcommon",
-            "output": [ "privateFeature" ]
-        },
         "mtdev": {
             "label": "mtdev",
             "condition": "libs.mtdev",
@@ -1605,6 +1595,28 @@
             "section": "Kernel",
             "output": [ "publicFeature", "feature" ]
         },
+        "textmarkdownreader": {
+            "label": "MarkdownReader",
+            "disable": "input.libmd4c == 'no'",
+            "enable": "input.libmd4c == 'system' || input.libmd4c == 'qt' || input.libmd4c == 'yes'",
+            "purpose": "Provides a Markdown (CommonMark and GitHub) reader",
+            "section": "Kernel",
+            "output": [ "publicFeature" ]
+        },
+        "system-textmarkdownreader": {
+            "label": "  Using system libmd4c",
+            "disable": "input.libmd4c == 'qt'",
+            "enable": "input.libmd4c == 'system'",
+            "section": "Kernel",
+            "condition": "libs.libmd4c",
+            "output": [ "publicFeature" ]
+        },
+        "textmarkdownwriter": {
+            "label": "MarkdownWriter",
+            "purpose": "Provides a Markdown (CommonMark) writer",
+            "section": "Kernel",
+            "output": [ "publicFeature" ]
+        },
         "textodfwriter": {
             "label": "OdfWriter",
             "purpose": "Provides an ODF writer.",
@@ -1799,6 +1811,12 @@
             "purpose": "Supports displaying \"What's this\" help.",
             "section": "Widget Support",
             "output": [ "publicFeature", "feature" ]
+        },
+        "raster-64bit": {
+            "label": "QPainter - 64 bit raster",
+            "purpose": "Internal painting support for 64 bit (16 bpc) rasterization.",
+            "section": "Painting",
+            "output": [ "privateFeature" ]
         }
     },
 
@@ -1830,7 +1848,7 @@ or may depend on your system and XQuartz setup."
         },
         {
             "type": "warning",
-            "condition": "features.gui && config.linux && !config.android && !features.xcb && !features.eglfs && !features.directfb && !features.linuxfb && !features.mirclient",
+            "condition": "features.gui && config.linux && !config.android && !features.xcb && !features.eglfs && !features.directfb && !features.linuxfb",
             "message": "No QPA platform plugin enabled! This will
 produce a Qt that cannot run GUI applications.
 See \"Platform backends\" in the output of --help."
@@ -1877,6 +1895,12 @@ QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your pla
                         "gif", "ico", "jpeg", "system-jpeg", "png", "system-png"
                     ]
                 },
+                {
+                    "section": "Text formats",
+                    "entries": [
+                        "texthtmlparser", "cssparser", "textodfwriter", "textmarkdownreader", "system-textmarkdownreader", "textmarkdownwriter"
+                    ]
+                },
                 "egl",
                 "openvg",
                 {
@@ -1938,7 +1962,7 @@ QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your pla
                         "eglfs_openwfd", "eglfs_viv", "eglfs_viv_wl", "eglfs_rcar", "eglfs_egldevice", "eglfs_gbm", "eglfs_vsp2", "eglfs_mali", "eglfs_brcm", "eglfs_x11"
                     ]
                 },
-                "linuxfb", "vnc", "mirclient",
+                "linuxfb", "vnc",
                 {
                     "type": "feature",
                     "condition": "config.integrity",
diff --git a/src/gui/doc/snippets/textdocumentendsnippet.cpp b/src/gui/doc/snippets/textdocumentendsnippet.cpp
index c8de501838..cb7abd5ca7 100644
--- a/src/gui/doc/snippets/textdocumentendsnippet.cpp
+++ b/src/gui/doc/snippets/textdocumentendsnippet.cpp
@@ -59,7 +59,7 @@ int main(int argv, char **args)
 
 //! [0]
     for (QTextBlock it = doc->begin(); it != doc->end(); it = it.next())
-        cout << it.text().toStdString() << endl;
+        cout << it.text().toStdString() << Qt::endl;
 //! [0]
 
     return 0;
diff --git a/src/gui/image/qbitmap.h b/src/gui/image/qbitmap.h
index f7895bb1e0..3cc360f670 100644
--- a/src/gui/image/qbitmap.h
+++ b/src/gui/image/qbitmap.h
@@ -61,7 +61,7 @@ public:
     QBitmap(const QBitmap &other) : QPixmap(other) {}
     // QBitmap(QBitmap &&other) : QPixmap(std::move(other)) {} // QPixmap doesn't, yet, have a move ctor
     QBitmap &operator=(const QBitmap &other) { QPixmap::operator=(other); return *this; }
-    QBitmap &operator=(QBitmap &&other) Q_DECL_NOTHROW { QPixmap::operator=(std::move(other)); return *this; }
+    QBitmap &operator=(QBitmap &&other) noexcept { QPixmap::operator=(std::move(other)); return *this; }
     ~QBitmap();
 #endif
 
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index 80fa65daac..1d1b6d3c49 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -663,7 +663,7 @@ QFactoryLoader *qt_iconEngineFactoryLoader()
 /*!
   Constructs a null icon.
 */
-QIcon::QIcon() Q_DECL_NOEXCEPT
+QIcon::QIcon() noexcept
     : d(0)
 {
 }
@@ -1496,7 +1496,7 @@ QDebug operator<<(QDebug dbg, const QIcon &i)
         if (!i.name().isEmpty())
             dbg << i.name() << ',';
         dbg << "availableSizes[normal,Off]=" << i.availableSizes()
-            << ",cacheKey=" << showbase << hex << i.cacheKey() << dec << noshowbase;
+            << ",cacheKey=" << Qt::showbase << Qt::hex << i.cacheKey() << Qt::dec << Qt::noshowbase;
     }
     dbg << ')';
     return dbg;
diff --git a/src/gui/image/qicon.h b/src/gui/image/qicon.h
index 8870950982..735a3e134d 100644
--- a/src/gui/image/qicon.h
+++ b/src/gui/image/qicon.h
@@ -58,23 +58,19 @@ public:
     enum Mode { Normal, Disabled, Active, Selected };
     enum State { On, Off };
 
-    QIcon() Q_DECL_NOEXCEPT;
+    QIcon() noexcept;
     QIcon(const QPixmap &pixmap);
     QIcon(const QIcon &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QIcon(QIcon &&other) Q_DECL_NOEXCEPT
+    QIcon(QIcon &&other) noexcept
         : d(other.d)
     { other.d = nullptr; }
-#endif
     explicit QIcon(const QString &fileName); // file or resource name
     explicit QIcon(QIconEngine *engine);
     ~QIcon();
     QIcon &operator=(const QIcon &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QIcon &operator=(QIcon &&other) Q_DECL_NOEXCEPT
+    inline QIcon &operator=(QIcon &&other) noexcept
     { swap(other); return *this; }
-#endif
-    inline void swap(QIcon &other) Q_DECL_NOEXCEPT
+    inline void swap(QIcon &other) noexcept
     { qSwap(d, other.d); }
 
     operator QVariant() const;
diff --git a/src/gui/image/qiconengine.h b/src/gui/image/qiconengine.h
index 0c5b51dc71..89fed5ccda 100644
--- a/src/gui/image/qiconengine.h
+++ b/src/gui/image/qiconengine.h
@@ -94,7 +94,7 @@ public:
     virtual void virtual_hook(int id, void *data);
 
 private:
-    QIconEngine &operator=(const QIconEngine &other) Q_DECL_EQ_DELETE;
+    QIconEngine &operator=(const QIconEngine &other) = delete;
 };
 
 #if QT_DEPRECATED_SINCE(5, 0)
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index ebd9037e44..917dde3b0f 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2018 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -38,8 +38,10 @@
 ****************************************************************************/
 
 #include "qimage.h"
-#include "qdatastream.h"
+
 #include "qbuffer.h"
+#include "qdatastream.h"
+#include "qcolortransform.h"
 #include "qmap.h"
 #include "qmatrix.h"
 #include "qtransform.h"
@@ -54,6 +56,7 @@
 #include <stdlib.h>
 #include <limits.h>
 #include <qpa/qplatformpixmap.h>
+#include <private/qcolortransform_p.h>
 #include <private/qdrawhelper_p.h>
 #include <private/qmemrotate_p.h>
 #include <private/qimagescale_p.h>
@@ -738,7 +741,7 @@ bool QImageData::checkForAlphaPixels() const
     \sa isNull()
 */
 
-QImage::QImage() Q_DECL_NOEXCEPT
+QImage::QImage() noexcept
     : QPaintDevice()
 {
     d = 0;
@@ -1103,6 +1106,7 @@ static void copyMetadata(QImageData *dst, const QImageData *src)
     // Doesn't copy colortable and alpha_clut, or offset.
     copyPhysicalMetadata(dst, src);
     dst->text = src->text;
+    dst->colorSpace = src->colorSpace;
 }
 
 static void copyMetadata(QImage *dst, const QImage &src)
@@ -1392,7 +1396,7 @@ void QImage::setColorTable(const QVector<QRgb> colors)
 #if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
     d->colortable = colors;
 #else
-    d->colortable = qMove(const_cast<QVector<QRgb>&>(colors));
+    d->colortable = std::move(const_cast<QVector<QRgb>&>(colors));
 #endif
     d->has_alpha_clut = false;
     for (int i = 0; i < d->colortable.size(); ++i) {
@@ -4686,12 +4690,14 @@ QImage QImage::smoothScaled(int w, int h) const {
     case QImage::Format_RGBX8888:
 #endif
     case QImage::Format_RGBA8888_Premultiplied:
+#if QT_CONFIG(raster_64bit)
     case QImage::Format_RGBX64:
     case QImage::Format_RGBA64_Premultiplied:
         break;
     case QImage::Format_RGBA64:
         src = src.convertToFormat(QImage::Format_RGBA64_Premultiplied);
         break;
+#endif
     default:
         if (src.hasAlphaChannel())
             src = src.convertToFormat(QImage::Format_ARGB32_Premultiplied);
@@ -4949,6 +4955,132 @@ QTransform QImage::trueMatrix(const QTransform &matrix, int w, int h)
     return matrix * QTransform().translate(-delta.x(), -delta.y());
 }
 
+/*!
+    \since 5.14
+
+    Sets the image color space to \a colorSpace without performing any conversions on image data.
+
+    \sa colorSpace()
+*/
+void QImage::setColorSpace(const QColorSpace &colorSpace)
+{
+    if (!d)
+        return;
+    if (d->colorSpace == colorSpace)
+        return;
+    if (!isDetached()) // Detach only if shared, not for read-only data.
+        detach();
+    d->colorSpace = colorSpace;
+}
+
+/*!
+    \since 5.14
+
+    Converts the image to \a colorSpace.
+
+    If the image has no valid color space, the method does nothing.
+
+    \sa convertedToColorSpace(), setColorSpace()
+*/
+void QImage::convertToColorSpace(const QColorSpace &colorSpace)
+{
+    if (!d)
+        return;
+    if (!d->colorSpace.isValid())
+        return;
+    if (!colorSpace.isValid()) {
+        qWarning() << "QImage::convertToColorSpace: Output colorspace is not valid";
+        return;
+    }
+    detach();
+    applyColorTransform(d->colorSpace.transformationToColorSpace(colorSpace));
+    d->colorSpace = colorSpace;
+}
+
+/*!
+    \since 5.14
+
+    Returns the image converted to \a colorSpace.
+
+    If the image has no valid color space, a null QImage is returned.
+
+    \sa convertToColorSpace()
+*/
+QImage QImage::convertedToColorSpace(const QColorSpace &colorSpace) const
+{
+    if (!d || !d->colorSpace.isValid() || !colorSpace.isValid())
+        return QImage();
+    QImage image = copy();
+    image.convertToColorSpace(colorSpace);
+    return image;
+}
+
+/*!
+    \since 5.14
+
+    Returns the color space of the image if a color space is defined.
+*/
+QColorSpace QImage::colorSpace() const
+{
+    if (!d)
+        return QColorSpace::Undefined;
+    return d->colorSpace;
+}
+
+/*!
+    \since 5.14
+
+    Applies the color transformation \a transform to all pixels in the image.
+*/
+void QImage::applyColorTransform(const QColorTransform &transform)
+{
+    QImage::Format oldFormat = format();
+    if (depth() > 32) {
+        if (format() != QImage::Format_RGBX64 && format() != QImage::Format_RGBA64
+                && format() != QImage::Format_RGBA64_Premultiplied)
+            *this = std::move(*this).convertToFormat(QImage::Format_RGBA64);
+    } else if (format() != QImage::Format_ARGB32 && format() != QImage::Format_RGB32
+                && format() != QImage::Format_ARGB32_Premultiplied) {
+        if (hasAlphaChannel())
+            *this = std::move(*this).convertToFormat(QImage::Format_ARGB32);
+        else
+            *this = std::move(*this).convertToFormat(QImage::Format_RGB32);
+    }
+
+    QColorTransformPrivate::TransformFlags flags = QColorTransformPrivate::Unpremultiplied;
+    switch (format()) {
+    case Format_ARGB32_Premultiplied:
+    case Format_RGBA64_Premultiplied:
+        flags = QColorTransformPrivate::Premultiplied;
+        break;
+    case Format_RGB32:
+    case Format_RGBX64:
+        flags = QColorTransformPrivate::InputOpaque;
+        break;
+    case Format_ARGB32:
+    case Format_RGBA64:
+        break;
+    default:
+        Q_UNREACHABLE();
+    }
+
+    if (depth() > 32) {
+        for (int i = 0; i < height(); ++i) {
+            QRgba64 *scanline = reinterpret_cast<QRgba64 *>(scanLine(i));
+            transform.d_func()->apply(scanline, scanline, width(), flags);
+        }
+    } else {
+        for (int i = 0; i < height(); ++i) {
+            QRgb *scanline = reinterpret_cast<QRgb *>(scanLine(i));
+            transform.d_func()->apply(scanline, scanline, width(), flags);
+        }
+    }
+
+    if (oldFormat != format())
+        *this = std::move(*this).convertToFormat(oldFormat);
+}
+
+
 bool QImageData::convertInPlace(QImage::Format newFormat, Qt::ImageConversionFlags flags)
 {
     if (format == newFormat)
@@ -5424,7 +5556,7 @@ Q_STATIC_ASSERT(sizeof(pixelformats) / sizeof(*pixelformats) == QImage::NImageFo
 /*!
     Returns the QImage::Format as a QPixelFormat
 */
-QPixelFormat QImage::pixelFormat() const Q_DECL_NOTHROW
+QPixelFormat QImage::pixelFormat() const noexcept
 {
     return toPixelFormat(format());
 }
@@ -5432,7 +5564,7 @@ QPixelFormat QImage::pixelFormat() const Q_DECL_NOTHROW
 /*!
     Converts \a format into a QPixelFormat
 */
-QPixelFormat QImage::toPixelFormat(QImage::Format format) Q_DECL_NOTHROW
+QPixelFormat QImage::toPixelFormat(QImage::Format format) noexcept
 {
     Q_ASSERT(static_cast<int>(format) < NImageFormats);
     return pixelformats[format];
@@ -5441,7 +5573,7 @@ QPixelFormat QImage::toPixelFormat(QImage::Format format) Q_DECL_NOTHROW
 /*!
     Converts \a format into a QImage::Format
 */
-QImage::Format QImage::toImageFormat(QPixelFormat format) Q_DECL_NOTHROW
+QImage::Format QImage::toImageFormat(QPixelFormat format) noexcept
 {
     for (int i = 0; i < NImageFormats; i++) {
         if (format == pixelformats[i])
@@ -5457,7 +5589,7 @@ Q_GUI_EXPORT void qt_imageTransform(QImage &src, QImageIOHandler::Transformation
     if (orient == QImageIOHandler::TransformationRotate270) {
         src = rotated270(src);
     } else {
-        src = qMove(src).mirrored(orient & QImageIOHandler::TransformationMirror,
+        src = std::move(src).mirrored(orient & QImageIOHandler::TransformationMirror,
                                   orient & QImageIOHandler::TransformationFlip);
         if (orient & QImageIOHandler::TransformationRotate90)
             src = rotated90(src);
diff --git a/src/gui/image/qimage.h b/src/gui/image/qimage.h
index 8335e117f2..7c68168be8 100644
--- a/src/gui/image/qimage.h
+++ b/src/gui/image/qimage.h
@@ -61,9 +61,11 @@ Q_FORWARD_DECLARE_MUTABLE_CG_TYPE(CGImage);
 QT_BEGIN_NAMESPACE
 
 
+class QColorSpace;
+class QColorTransform;
 class QIODevice;
-class QStringList;
 class QMatrix;
+class QStringList;
 class QTransform;
 class QVariant;
 template <class T> class QList;
@@ -135,7 +137,7 @@ public:
     };
     Q_ENUM(Format)
 
-    QImage() Q_DECL_NOEXCEPT;
+    QImage() noexcept;
     QImage(const QSize &size, Format format);
     QImage(int width, int height, Format format);
     QImage(uchar *data, int width, int height, Format format, QImageCleanupFunction cleanupFunction = nullptr, void *cleanupInfo = nullptr);
@@ -149,19 +151,15 @@ public:
     explicit QImage(const QString &fileName, const char *format = nullptr);
 
     QImage(const QImage &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QImage(QImage &&other) Q_DECL_NOEXCEPT
+    inline QImage(QImage &&other) noexcept
         : QPaintDevice(), d(nullptr)
     { qSwap(d, other.d); }
-#endif
     ~QImage();
 
     QImage &operator=(const QImage &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QImage &operator=(QImage &&other) Q_DECL_NOEXCEPT
+    inline QImage &operator=(QImage &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    inline void swap(QImage &other) Q_DECL_NOEXCEPT
+    inline void swap(QImage &other) noexcept
     { qSwap(d, other.d); }
 
     bool isNull() const;
@@ -289,17 +287,23 @@ public:
     QImage mirrored(bool horizontally = false, bool vertically = true) const &
         { return mirrored_helper(horizontally, vertically); }
     QImage &&mirrored(bool horizontally = false, bool vertically = true) &&
-        { mirrored_inplace(horizontally, vertically); return qMove(*this); }
+        { mirrored_inplace(horizontally, vertically); return std::move(*this); }
     QImage rgbSwapped() const &
         { return rgbSwapped_helper(); }
     QImage &&rgbSwapped() &&
-        { rgbSwapped_inplace(); return qMove(*this); }
+        { rgbSwapped_inplace(); return std::move(*this); }
 #else
     QImage mirrored(bool horizontally = false, bool vertically = true) const;
     QImage rgbSwapped() const;
 #endif
     void invertPixels(InvertMode = InvertRgb);
 
+    QColorSpace colorSpace() const;
+    QImage convertedToColorSpace(const QColorSpace &) const;
+    void convertToColorSpace(const QColorSpace &);
+    void setColorSpace(const QColorSpace &);
+
+    void applyColorTransform(const QColorTransform &transform);
 
     bool load(QIODevice *device, const char* format);
     bool load(const QString &fileName, const char *format = nullptr);
@@ -333,9 +337,9 @@ public:
     QString text(const QString &key = QString()) const;
     void setText(const QString &key, const QString &value);
 
-    QPixelFormat pixelFormat() const Q_DECL_NOTHROW;
-    static QPixelFormat toPixelFormat(QImage::Format format) Q_DECL_NOTHROW;
-    static QImage::Format toImageFormat(QPixelFormat format) Q_DECL_NOTHROW;
+    QPixelFormat pixelFormat() const noexcept;
+    static QPixelFormat toPixelFormat(QImage::Format format) noexcept;
+    static QImage::Format toImageFormat(QPixelFormat format) noexcept;
 
     // Platform specific conversion functions
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
diff --git a/src/gui/image/qimage_conversions.cpp b/src/gui/image/qimage_conversions.cpp
index 82ffb8af8b..837ac88470 100644
--- a/src/gui/image/qimage_conversions.cpp
+++ b/src/gui/image/qimage_conversions.cpp
@@ -39,7 +39,7 @@
 
 #include <private/qdrawhelper_p.h>
 #include <private/qguiapplication_p.h>
-#include <private/qcolorprofile_p.h>
+#include <private/qcolortrclut_p.h>
 #include <private/qendian_p.h>
 #include <private/qsimd_p.h>
 #include <private/qimage_p.h>
@@ -100,7 +100,7 @@ const uchar *qt_get_bitflip_array()
 
 void qGamma_correct_back_to_linear_cs(QImage *image)
 {
-    const QColorProfile *cp = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
+    const QColorTrcLut *cp = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
     if (!cp)
         return;
     // gamma correct the pixels back to linear color space...
diff --git a/src/gui/image/qimage_p.h b/src/gui/image/qimage_p.h
index d88ad2d1d2..9da6acd0a7 100644
--- a/src/gui/image/qimage_p.h
+++ b/src/gui/image/qimage_p.h
@@ -51,7 +51,9 @@
 // We mean it.
 //
 
+#include <QtGui/qcolorspace.h>
 #include <QtGui/private/qtguiglobal_p.h>
+#include <QtGui/qimage.h>
 #include <QtCore/private/qnumeric_p.h>
 
 #include <QMap>
@@ -65,7 +67,7 @@ struct Q_GUI_EXPORT QImageData {        // internal image data
     QImageData();
     ~QImageData();
     static QImageData *create(const QSize &size, QImage::Format format);
-    static QImageData *create(uchar *data, int w, int h,  int bpl, QImage::Format format, bool readOnly, QImageCleanupFunction cleanupFunction = 0, void *cleanupInfo = 0);
+    static QImageData *create(uchar *data, int w, int h,  int bpl, QImage::Format format, bool readOnly, QImageCleanupFunction cleanupFunction = nullptr, void *cleanupInfo = nullptr);
 
     QAtomicInt ref;
 
@@ -106,6 +108,8 @@ struct Q_GUI_EXPORT QImageData {        // internal image data
 
     QPaintEngine *paintEngine;
 
+    QColorSpace colorSpace;
+
     struct ImageSizeParameters {
         qsizetype bytesPerLine;
         qsizetype totalSize;
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp
index 61f20e0c65..ae433ff651 100644
--- a/src/gui/image/qimagereader.cpp
+++ b/src/gui/image/qimagereader.cpp
@@ -1115,8 +1115,10 @@ bool QImageReader::autoTransform() const
     case QImageReaderPrivate::DoNotApplyTransform:
         return false;
     case QImageReaderPrivate::UsePluginDefault:
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         if (d->initHandler())
             return d->handler->supportsOption(QImageIOHandler::TransformedByDefault);
+#endif
         Q_FALLTHROUGH();
     default:
         break;
diff --git a/src/gui/image/qpicture.cpp b/src/gui/image/qpicture.cpp
index bba36b09cd..fe1e4d2c9b 100644
--- a/src/gui/image/qpicture.cpp
+++ b/src/gui/image/qpicture.cpp
@@ -54,6 +54,7 @@
 #include "qpainter.h"
 #include "qpainterpath.h"
 #include "qpixmap.h"
+#include "qregexp.h"
 #include "qregion.h"
 #include "qdebug.h"
 
diff --git a/src/gui/image/qpicture.h b/src/gui/image/qpicture.h
index ec7b4bd7e3..189e57b9a3 100644
--- a/src/gui/image/qpicture.h
+++ b/src/gui/image/qpicture.h
@@ -78,11 +78,9 @@ public:
     void setBoundingRect(const QRect &r);
 
     QPicture& operator=(const QPicture &p);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QPicture &operator=(QPicture &&other) Q_DECL_NOEXCEPT
+    inline QPicture &operator=(QPicture &&other) noexcept
     { qSwap(d_ptr, other.d_ptr); return *this; }
-#endif
-    inline void swap(QPicture &other) Q_DECL_NOEXCEPT
+    inline void swap(QPicture &other) noexcept
     { d_ptr.swap(other.d_ptr); }
     void detach();
     bool isDetached() const;
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 5b4d218603..399ad7453d 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -1689,7 +1689,7 @@ QDebug operator<<(QDebug dbg, const QPixmap &r)
     } else {
         dbg << r.size() << ",depth=" << r.depth()
             << ",devicePixelRatio=" << r.devicePixelRatio()
-            << ",cacheKey=" << showbase << hex << r.cacheKey() << dec << noshowbase;
+            << ",cacheKey=" << Qt::showbase << Qt::hex << r.cacheKey() << Qt::dec << Qt::noshowbase;
     }
     dbg << ')';
     return dbg;
diff --git a/src/gui/image/qpixmap.h b/src/gui/image/qpixmap.h
index 13c81f18d0..8c1395857e 100644
--- a/src/gui/image/qpixmap.h
+++ b/src/gui/image/qpixmap.h
@@ -73,11 +73,9 @@ public:
     ~QPixmap();
 
     QPixmap &operator=(const QPixmap &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QPixmap &operator=(QPixmap &&other) Q_DECL_NOEXCEPT
+    inline QPixmap &operator=(QPixmap &&other) noexcept
     { qSwap(data, other.data); return *this; }
-#endif
-    inline void swap(QPixmap &other) Q_DECL_NOEXCEPT
+    inline void swap(QPixmap &other) noexcept
     { qSwap(data, other.data); }
 
     operator QVariant() const;
@@ -139,12 +137,10 @@ public:
     QImage toImage() const;
     static QPixmap fromImage(const QImage &image, Qt::ImageConversionFlags flags = Qt::AutoColor);
     static QPixmap fromImageReader(QImageReader *imageReader, Qt::ImageConversionFlags flags = Qt::AutoColor);
-#ifdef Q_COMPILER_RVALUE_REFS
     static QPixmap fromImage(QImage &&image, Qt::ImageConversionFlags flags = Qt::AutoColor)
     {
         return fromImageInPlace(image, flags);
     }
-#endif
 
     bool load(const QString& fileName, const char *format = nullptr, Qt::ImageConversionFlags flags = Qt::AutoColor);
     bool loadFromData(const uchar *buf, uint len, const char* format = nullptr, Qt::ImageConversionFlags flags = Qt::AutoColor);
diff --git a/src/gui/image/qpixmapcache.cpp b/src/gui/image/qpixmapcache.cpp
index 66907bebd7..a41ec8f35c 100644
--- a/src/gui/image/qpixmapcache.cpp
+++ b/src/gui/image/qpixmapcache.cpp
@@ -176,7 +176,7 @@ bool QPixmapCache::Key::operator ==(const Key &key) const
     Otherwise, if pixmap was flushed, the key is no longer valid.
     \since 5.7
 */
-bool QPixmapCache::Key::isValid() const Q_DECL_NOTHROW
+bool QPixmapCache::Key::isValid() const noexcept
 {
     return d && d->isValid;
 }
diff --git a/src/gui/image/qpixmapcache.h b/src/gui/image/qpixmapcache.h
index 12d05b00f3..55af35a5d9 100644
--- a/src/gui/image/qpixmapcache.h
+++ b/src/gui/image/qpixmapcache.h
@@ -55,18 +55,16 @@ public:
     public:
         Key();
         Key(const Key &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-        Key(Key &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
-        Key &operator =(Key &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+        Key(Key &&other) noexcept : d(other.d) { other.d = nullptr; }
+        Key &operator =(Key &&other) noexcept { swap(other); return *this; }
         ~Key();
         bool operator ==(const Key &key) const;
         inline bool operator !=(const Key &key) const
         { return !operator==(key); }
         Key &operator =(const Key &other);
 
-        void swap(Key &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
-        bool isValid() const Q_DECL_NOTHROW;
+        void swap(Key &other) noexcept { qSwap(d, other.d); }
+        bool isValid() const noexcept;
 
     private:
         KeyData *d;
diff --git a/src/gui/image/qpixmapcache_p.h b/src/gui/image/qpixmapcache_p.h
index 3c57367514..ab8e2b7558 100644
--- a/src/gui/image/qpixmapcache_p.h
+++ b/src/gui/image/qpixmapcache_p.h
@@ -87,7 +87,7 @@ public:
                 && !d->image.d->paintEngine->isActive())
             {
                 delete d->image.d->paintEngine;
-                d->image.d->paintEngine = 0;
+                d->image.d->paintEngine = nullptr;
             }
         }
     }
diff --git a/src/gui/image/qpnghandler.cpp b/src/gui/image/qpnghandler.cpp
index 1c269213e2..39d0807606 100644
--- a/src/gui/image/qpnghandler.cpp
+++ b/src/gui/image/qpnghandler.cpp
@@ -42,6 +42,7 @@
 
 #ifndef QT_NO_IMAGEFORMAT_PNG
 #include <qcoreapplication.h>
+#include <qdebug.h>
 #include <qiodevice.h>
 #include <qimage.h>
 #include <qlist.h>
@@ -50,6 +51,10 @@
 
 #include <private/qimage_p.h> // for qt_getImageText
 
+#include <qcolorspace.h>
+#include <private/qcolorspace_p.h>
+#include <private/qicc_p.h>
+
 #include <png.h>
 #include <pngconf.h>
 
@@ -96,9 +101,16 @@ public:
         ReadingEnd,
         Error
     };
+    // Defines the order of how the various ways of setting colorspace overrides eachother:
+    enum ColorSpaceState {
+        Undefined = 0,
+        GammaChrm = 1, // gAMA+cHRM chunks
+        Srgb = 2,      // sRGB chunk
+        Icc = 3        // iCCP chunk
+    };
 
     QPngHandlerPrivate(QPngHandler *qq)
-        : gamma(0.0), fileGamma(0.0), quality(50), compression(50), png_ptr(0), info_ptr(0), end_info(0), state(Ready), q(qq)
+        : gamma(0.0), fileGamma(0.0), quality(50), compression(50), colorSpaceState(Undefined), png_ptr(0), info_ptr(0), end_info(0), state(Ready), q(qq)
     { }
 
     float gamma;
@@ -108,6 +120,8 @@ public:
     QString description;
     QSize scaledSize;
     QStringList readTexts;
+    QColorSpace colorSpace;
+    ColorSpaceState colorSpaceState;
 
     png_struct *png_ptr;
     png_info *info_ptr;
@@ -226,11 +240,8 @@ void qpiw_flush_fn(png_structp /* png_ptr */)
 }
 
 static
-void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scaledSize, bool *doScaledRead, float screen_gamma=0.0, float file_gamma=0.0)
+void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scaledSize, bool *doScaledRead)
 {
-    if (screen_gamma != 0.0 && file_gamma != 0.0)
-        png_set_gamma(png_ptr, 1.0f / screen_gamma, file_gamma);
-
     png_uint_32 width = 0;
     png_uint_32 height = 0;
     int bit_depth = 0;
@@ -585,10 +596,45 @@ bool QPngHandlerPrivate::readPngHeader()
 
     readPngTexts(info_ptr);
 
+#ifdef PNG_iCCP_SUPPORTED
+    if (png_get_valid(png_ptr, info_ptr, PNG_INFO_iCCP)) {
+        png_charp name = nullptr;
+        int compressionType = 0;
+#if (PNG_LIBPNG_VER < 10500)
+        png_charp profileData = nullptr;
+#else
+        png_bytep profileData = nullptr;
+#endif
+        png_uint_32 profLen;
+        png_get_iCCP(png_ptr, info_ptr, &name, &compressionType, &profileData, &profLen);
+        if (!QIcc::fromIccProfile(QByteArray::fromRawData((const char *)profileData, profLen), &colorSpace)) {
+            qWarning() << "QPngHandler: Failed to parse ICC profile";
+        } else {
+            colorSpaceState = Icc;
+        }
+    }
+#endif
+    if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sRGB)) {
+        int rendering_intent = -1;
+        png_get_sRGB(png_ptr, info_ptr, &rendering_intent);
+        // We don't actually care about the rendering_intent, just that it is valid
+        if (rendering_intent >= 0 && rendering_intent <= 3 && colorSpaceState <= Srgb) {
+            colorSpace = QColorSpace::SRgb;
+            colorSpaceState = Srgb;
+        }
+    }
     if (png_get_valid(png_ptr, info_ptr, PNG_INFO_gAMA)) {
         double file_gamma = 0.0;
         png_get_gAMA(png_ptr, info_ptr, &file_gamma);
         fileGamma = file_gamma;
+        if (fileGamma > 0.0f && colorSpaceState <= GammaChrm) {
+            QColorSpacePrivate *csPrivate = colorSpace.d_func();
+            csPrivate->gamut = QColorSpace::Gamut::SRgb;
+            csPrivate->transferFunction = QColorSpace::TransferFunction::Gamma;
+            csPrivate->gamma = fileGamma;
+            csPrivate->initialize();
+            colorSpaceState = GammaChrm;
+        }
     }
 
     state = ReadHeader;
@@ -613,8 +659,19 @@ bool QPngHandlerPrivate::readPngImage(QImage *outImage)
         return false;
     }
 
+    if (gamma != 0.0 && fileGamma != 0.0) {
+        // This configuration forces gamma correction and
+        // thus changes the output colorspace
+        png_set_gamma(png_ptr, 1.0f / gamma, fileGamma);
+        QColorSpacePrivate *csPrivate = colorSpace.d_func();
+        csPrivate->transferFunction = QColorSpace::TransferFunction::Gamma;
+        csPrivate->gamma = gamma;
+        csPrivate->initialize();
+        colorSpaceState = GammaChrm;
+    }
+
     bool doScaledRead = false;
-    setup_qt(*outImage, png_ptr, info_ptr, scaledSize, &doScaledRead, gamma, fileGamma);
+    setup_qt(*outImage, png_ptr, info_ptr, scaledSize, &doScaledRead);
 
     if (outImage->isNull()) {
         png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
@@ -683,6 +740,9 @@ bool QPngHandlerPrivate::readPngImage(QImage *outImage)
     if (scaledSize.isValid() && outImage->size() != scaledSize)
         *outImage = outImage->scaled(scaledSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
 
+    if (colorSpaceState > Undefined && colorSpace.isValid())
+        outImage->setColorSpace(colorSpace);
+
     return true;
 }
 
diff --git a/src/gui/image/qppmhandler_p.h b/src/gui/image/qppmhandler_p.h
index f3c9d0f139..2f3811b759 100644
--- a/src/gui/image/qppmhandler_p.h
+++ b/src/gui/image/qppmhandler_p.h
@@ -71,7 +71,7 @@ public:
     QByteArray name() const override;
 #endif
 
-    static bool canRead(QIODevice *device, QByteArray *subType = 0);
+    static bool canRead(QIODevice *device, QByteArray *subType = nullptr);
 
     QVariant option(ImageOption option) const override;
     void setOption(ImageOption option, const QVariant &value) override;
diff --git a/src/gui/image/qxbmhandler.cpp b/src/gui/image/qxbmhandler.cpp
index 65a5b63bc7..3cd15b3e4d 100644
--- a/src/gui/image/qxbmhandler.cpp
+++ b/src/gui/image/qxbmhandler.cpp
@@ -44,6 +44,7 @@
 
 #include <qimage.h>
 #include <qiodevice.h>
+#include <qregexp.h>
 #include <qvariant.h>
 
 #include <stdio.h>
diff --git a/src/gui/image/qxpmhandler.cpp b/src/gui/image/qxpmhandler.cpp
index a32dfda96d..deff56aa58 100644
--- a/src/gui/image/qxpmhandler.cpp
+++ b/src/gui/image/qxpmhandler.cpp
@@ -45,6 +45,7 @@
 #include <qbytearraymatcher.h>
 #include <qimage.h>
 #include <qmap.h>
+#include <qregexp.h>
 #include <qtextstream.h>
 #include <qvariant.h>
 
@@ -1128,8 +1129,8 @@ static bool write_xpm_image(const QImage &sourceImage, QIODevice *device, const
 
     // write header
     QTextStream s(device);
-    s << "/* XPM */" << endl
-      << "static char *" << fbname(fileName) << "[]={" << endl
+    s << "/* XPM */" << Qt::endl
+      << "static char *" << fbname(fileName) << "[]={" << Qt::endl
       << '\"' << w << ' ' << h << ' ' << ncolors << ' ' << cpp << '\"';
 
     // write palette
@@ -1146,7 +1147,7 @@ static bool write_xpm_image(const QImage &sourceImage, QIODevice *device, const
                                      qGreen(color),
                                      qBlue(color));
         ++c;
-        s << ',' << endl << line;
+        s << ',' << Qt::endl << line;
     }
 
     // write pixels, limit to 4 characters per pixel
@@ -1168,9 +1169,9 @@ static bool write_xpm_image(const QImage &sourceImage, QIODevice *device, const
                 }
             }
         }
-        s << ',' << endl << '\"' << line << '\"';
+        s << ',' << Qt::endl << '\"' << line << '\"';
     }
-    s << "};" << endl;
+    s << "};" << Qt::endl;
     return (s.status() == QTextStream::Ok);
 }
 
diff --git a/src/gui/itemmodels/qstandarditemmodel_p.h b/src/gui/itemmodels/qstandarditemmodel_p.h
index 23d2938bc4..97c2e6f01b 100644
--- a/src/gui/itemmodels/qstandarditemmodel_p.h
+++ b/src/gui/itemmodels/qstandarditemmodel_p.h
@@ -109,11 +109,11 @@ class QStandardItemPrivate
     Q_DECLARE_PUBLIC(QStandardItem)
 public:
     inline QStandardItemPrivate()
-        : model(0),
-          parent(0),
+        : model(nullptr),
+          parent(nullptr),
           rows(0),
           columns(0),
-          q_ptr(0),
+          q_ptr(nullptr),
           lastKnownIndex(-1)
         { }
 
@@ -220,10 +220,10 @@ public:
         if (!index.isValid())
             return root.data();
         if (index.model() != q)
-            return 0;
+            return nullptr;
         QStandardItem *parent = static_cast<QStandardItem*>(index.internalPointer());
-        if (parent == 0)
-            return 0;
+        if (parent == nullptr)
+            return nullptr;
         return parent->child(index.row(), index.column());
     }
 
diff --git a/src/gui/kernel/kernel.pri b/src/gui/kernel/kernel.pri
index 1f137fc46f..9c80f1e2cc 100644
--- a/src/gui/kernel/kernel.pri
+++ b/src/gui/kernel/kernel.pri
@@ -21,7 +21,7 @@ HEADERS += \
         kernel/qplatforminputcontextplugin_p.h \
         kernel/qplatformintegrationfactory_p.h \
         kernel/qplatformintegrationplugin.h \
-        kernel/qplatformtheme.h\
+        kernel/qplatformtheme.h \
         kernel/qplatformtheme_p.h \
         kernel/qplatformthemefactory_p.h \
         kernel/qplatformthemeplugin.h \
diff --git a/src/gui/kernel/qcursor.cpp b/src/gui/kernel/qcursor.cpp
index 9e4787589f..1ba8760a9d 100644
--- a/src/gui/kernel/qcursor.cpp
+++ b/src/gui/kernel/qcursor.cpp
@@ -494,7 +494,7 @@ QCursor::QCursor(Qt::CursorShape shape)
 
     \sa operator!=(const QCursor &lhs, const QCursor &rhs)
 */
-bool operator==(const QCursor &lhs, const QCursor &rhs) Q_DECL_NOTHROW
+bool operator==(const QCursor &lhs, const QCursor &rhs) noexcept
 {
     if (lhs.d == rhs.d)
         return true; // Copy or same shape
diff --git a/src/gui/kernel/qcursor.h b/src/gui/kernel/qcursor.h
index d62ee7a053..7966e35840 100644
--- a/src/gui/kernel/qcursor.h
+++ b/src/gui/kernel/qcursor.h
@@ -86,13 +86,11 @@ public:
     QCursor(const QCursor &cursor);
     ~QCursor();
     QCursor &operator=(const QCursor &cursor);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QCursor(QCursor &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
-    inline QCursor &operator=(QCursor &&other) Q_DECL_NOTHROW
+    QCursor(QCursor &&other) noexcept : d(other.d) { other.d = nullptr; }
+    inline QCursor &operator=(QCursor &&other) noexcept
     { swap(other); return *this; }
-#endif
 
-    void swap(QCursor &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QCursor &other) noexcept { qSwap(d, other.d); }
 
     operator QVariant() const;
 
@@ -112,13 +110,13 @@ public:
     inline static void setPos(QScreen *screen, const QPoint &p) { setPos(screen, p.x(), p.y()); }
 
 private:
-    friend Q_GUI_EXPORT bool operator==(const QCursor &lhs, const QCursor &rhs) Q_DECL_NOTHROW;
+    friend Q_GUI_EXPORT bool operator==(const QCursor &lhs, const QCursor &rhs) noexcept;
     QCursorData *d;
 };
 Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QCursor)
 
-Q_GUI_EXPORT bool operator==(const QCursor &lhs, const QCursor &rhs) Q_DECL_NOTHROW;
-inline bool operator!=(const QCursor &lhs, const QCursor &rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
+Q_GUI_EXPORT bool operator==(const QCursor &lhs, const QCursor &rhs) noexcept;
+inline bool operator!=(const QCursor &lhs, const QCursor &rhs) noexcept { return !(lhs == rhs); }
 
 /*****************************************************************************
   QCursor stream functions
diff --git a/src/gui/kernel/qdnd_p.h b/src/gui/kernel/qdnd_p.h
index 8f8eb03f87..b1219c8658 100644
--- a/src/gui/kernel/qdnd_p.h
+++ b/src/gui/kernel/qdnd_p.h
@@ -73,9 +73,9 @@ class QDragPrivate : public QObjectPrivate
 {
 public:
     QDragPrivate()
-        : source(0)
-        , target(0)
-        , data(0)
+        : source(nullptr)
+        , target(nullptr)
+        , data(nullptr)
     { }
     QObject *source;
     QObject *target;
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index 7123c4d8ba..563eab4655 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -3764,13 +3764,13 @@ static inline void formatTouchEvent(QDebug d, const QTouchEvent &t)
 
 static void formatUnicodeString(QDebug d, const QString &s)
 {
-    d << '"' << hex;
+    d << '"' << Qt::hex;
     for (int i = 0; i < s.size(); ++i) {
         if (i)
             d << ',';
         d << "U+" << s.at(i).unicode();
     }
-    d << dec << '"';
+    d << Qt::dec << '"';
 }
 
 static inline void formatInputMethodEvent(QDebug d, const QInputMethodEvent *e)
@@ -3807,8 +3807,8 @@ static inline void formatInputMethodQueryEvent(QDebug d, const QInputMethodQuery
     QDebugStateSaver saver(d);
     d.noquote();
     const Qt::InputMethodQueries queries = e->queries();
-    d << "QInputMethodQueryEvent(queries=" << showbase << hex << int(queries)
-      << noshowbase << dec << ", {";
+    d << "QInputMethodQueryEvent(queries=" << Qt::showbase << Qt::hex << int(queries)
+      << Qt::noshowbase << Qt::dec << ", {";
     for (unsigned mask = 1; mask <= Qt::ImInputItemClipRectangle; mask<<=1) {
         if (queries & mask) {
             const Qt::InputMethodQuery query = static_cast<Qt::InputMethodQuery>(mask);
@@ -4001,7 +4001,7 @@ QDebug operator<<(QDebug dbg, const QTouchEvent::TouchPoint &tp)
 {
     QDebugStateSaver saver(dbg);
     dbg.nospace();
-    dbg << "TouchPoint(" << hex << tp.id() << dec << " (";
+    dbg << "TouchPoint(" << Qt::hex << tp.id() << Qt::dec << " (";
     QtDebugUtils::formatQPoint(dbg, tp.pos());
     dbg << ") ";
     QtDebugUtils::formatQEnum(dbg, tp.state());
@@ -5426,7 +5426,7 @@ QPointingDeviceUniqueId QPointingDeviceUniqueId::fromNumericId(qint64 id)
 
     \sa isValid()
 */
-qint64 QPointingDeviceUniqueId::numericId() const Q_DECL_NOTHROW
+qint64 QPointingDeviceUniqueId::numericId() const noexcept
 {
     return m_numericId;
 }
@@ -5438,7 +5438,7 @@ qint64 QPointingDeviceUniqueId::numericId() const Q_DECL_NOTHROW
     Returns whether the two unique pointer IDs \a lhs and \a rhs identify the same pointer
     (\c true) or not (\c false).
 */
-bool operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) Q_DECL_NOTHROW
+bool operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) noexcept
 {
     return lhs.numericId() == rhs.numericId();
 }
@@ -5458,7 +5458,7 @@ bool operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) Q_DECL
 
     Returns the hash value for \a key, using \a seed to seed the calculation.
 */
-uint qHash(QPointingDeviceUniqueId key, uint seed) Q_DECL_NOTHROW
+uint qHash(QPointingDeviceUniqueId key, uint seed) noexcept
 {
     return qHash(key.numericId(), seed);
 }
diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index 2b1c6a6e31..eb0a6208a9 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -549,7 +549,7 @@ public:
     };
     class Attribute {
     public:
-        Attribute(AttributeType typ, int s, int l, QVariant val) : type(typ), start(s), length(l), value(qMove(val)) {}
+        Attribute(AttributeType typ, int s, int l, QVariant val) : type(typ), start(s), length(l), value(std::move(val)) {}
         Attribute(AttributeType typ, int s, int l) : type(typ), start(s), length(l), value() {}
 
         AttributeType type;
@@ -811,14 +811,14 @@ class Q_GUI_EXPORT QPointingDeviceUniqueId
     Q_PROPERTY(qint64 numericId READ numericId CONSTANT)
 public:
     Q_ALWAYS_INLINE
-    Q_DECL_CONSTEXPR QPointingDeviceUniqueId() Q_DECL_NOTHROW : m_numericId(-1) {}
+    Q_DECL_CONSTEXPR QPointingDeviceUniqueId() noexcept : m_numericId(-1) {}
     // compiler-generated copy/move ctor/assignment operators are ok!
     // compiler-generated dtor is ok!
 
     static QPointingDeviceUniqueId fromNumericId(qint64 id);
 
-    Q_ALWAYS_INLINE Q_DECL_CONSTEXPR bool isValid() const Q_DECL_NOTHROW { return m_numericId != -1; }
-    qint64 numericId() const Q_DECL_NOTHROW;
+    Q_ALWAYS_INLINE Q_DECL_CONSTEXPR bool isValid() const noexcept { return m_numericId != -1; }
+    qint64 numericId() const noexcept;
 
 private:
     // TODO: for TUIO 2, or any other type of complex token ID, an internal
@@ -829,10 +829,10 @@ private:
 Q_DECLARE_TYPEINFO(QPointingDeviceUniqueId, Q_MOVABLE_TYPE);
 template <> class QList<QPointingDeviceUniqueId> {}; // to prevent instantiation: use QVector instead
 
-Q_GUI_EXPORT bool operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) Q_DECL_NOTHROW;
-inline bool operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) Q_DECL_NOTHROW
+Q_GUI_EXPORT bool operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) noexcept;
+inline bool operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) noexcept
 { return !operator==(lhs, rhs); }
-Q_GUI_EXPORT uint qHash(QPointingDeviceUniqueId key, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT uint qHash(QPointingDeviceUniqueId key, uint seed = 0) noexcept;
 
 
 
@@ -855,19 +855,17 @@ public:
 
         explicit TouchPoint(int id = -1);
         TouchPoint(const TouchPoint &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-        TouchPoint(TouchPoint &&other) Q_DECL_NOEXCEPT
+        TouchPoint(TouchPoint &&other) noexcept
             : d(nullptr)
         { qSwap(d, other.d); }
-        TouchPoint &operator=(TouchPoint &&other) Q_DECL_NOEXCEPT
+        TouchPoint &operator=(TouchPoint &&other) noexcept
         { qSwap(d, other.d); return *this; }
-#endif
         ~TouchPoint();
 
         TouchPoint &operator=(const TouchPoint &other)
         { if ( d != other.d ) { TouchPoint copy(other); swap(copy); } return *this; }
 
-        void swap(TouchPoint &other) Q_DECL_NOEXCEPT
+        void swap(TouchPoint &other) noexcept
         { qSwap(d, other.d); }
 
         int id() const;
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index e88fcdb55a..d2858c5270 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -68,7 +68,7 @@
 #include <qpalette.h>
 #include <qscreen.h>
 #include "qsessionmanager.h"
-#include <private/qcolorprofile_p.h>
+#include <private/qcolortrclut_p.h>
 #include <private/qscreen_p.h>
 
 #include <QtGui/qgenericpluginfactory.h>
@@ -1648,8 +1648,6 @@ QGuiApplicationPrivate::~QGuiApplicationPrivate()
     platform_theme = 0;
     delete platform_integration;
     platform_integration = 0;
-    delete m_a8ColorProfile.load();
-    delete m_a32ColorProfile.load();
 
     window_list.clear();
     screen_list.clear();
@@ -1832,7 +1830,11 @@ bool QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(QWindow *window,
     return platformWindow->windowEvent(event);
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QGuiApplicationPrivate::processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QGuiApplicationPrivate::processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result)
+#endif
 {
     return window->nativeEvent(eventType, message, result);
 }
@@ -3990,32 +3992,26 @@ void QGuiApplicationPrivate::notifyDragStarted(const QDrag *drag)
 }
 #endif
 
-const QColorProfile *QGuiApplicationPrivate::colorProfileForA8Text()
+const QColorTrcLut *QGuiApplicationPrivate::colorProfileForA8Text()
 {
 #ifdef Q_OS_WIN
-    QColorProfile *result = m_a8ColorProfile.load();
-    if (!result){
-        QColorProfile *cs = QColorProfile::fromGamma(2.31); // This is a hard-coded thing for Windows text rendering
-        if (!m_a8ColorProfile.testAndSetRelease(0, cs))
-            delete cs;
-        result = m_a8ColorProfile.load();
+    if (!m_a8ColorProfile){
+        QColorTrcLut *cs = QColorTrcLut::fromGamma(2.31); // This is a hard-coded thing for Windows text rendering
+        m_a8ColorProfile.reset(cs);
     }
-    return result;
+    return m_a8ColorProfile.get();
 #else
     return colorProfileForA32Text();
 #endif
 }
 
-const QColorProfile *QGuiApplicationPrivate::colorProfileForA32Text()
+const QColorTrcLut *QGuiApplicationPrivate::colorProfileForA32Text()
 {
-    QColorProfile *result = m_a32ColorProfile.load();
-    if (!result){
-        QColorProfile *cs = QColorProfile::fromGamma(fontSmoothingGamma);
-        if (!m_a32ColorProfile.testAndSetRelease(0, cs))
-            delete cs;
-        result = m_a32ColorProfile.load();
+    if (!m_a32ColorProfile) {
+        QColorTrcLut *cs = QColorTrcLut::fromGamma(fontSmoothingGamma);
+        m_a32ColorProfile.reset(cs);
     }
-    return result;
+    return m_a32ColorProfile.get();
 }
 
 void QGuiApplicationPrivate::_q_updateFocusObject(QObject *object)
diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 714c72ac08..361519661a 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -55,6 +55,7 @@
 #include <QtGui/qguiapplication.h>
 
 #include <QtCore/QPointF>
+#include <QtCore/QSharedPointer>
 #include <QtCore/private/qcoreapplication_p.h>
 
 #include <QtCore/private/qthread_p.h>
@@ -66,7 +67,7 @@
 
 QT_BEGIN_NAMESPACE
 
-class QColorProfile;
+class QColorTrcLut;
 class QPlatformIntegration;
 class QPlatformTheme;
 class QPlatformDragQtResponse;
@@ -114,7 +115,7 @@ public:
         if (QCoreApplication::instance())
             return QCoreApplication::instance()->d_func()->threadData->eventDispatcher.load();
         else
-            return 0;
+            return nullptr;
     }
 
     static void processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *e);
@@ -171,7 +172,11 @@ public:
                                                Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers);
 #endif
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    static bool processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result);
+#else
     static bool processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result);
+#endif
 
     static bool sendQWindowEventToQPlatformWindow(QWindow *window, QEvent *event);
 
@@ -204,7 +209,7 @@ public:
     static void showModalWindow(QWindow *window);
     static void hideModalWindow(QWindow *window);
     static void updateBlockedStatus(QWindow *window);
-    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = 0) const;
+    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = nullptr) const;
     virtual bool popupActive() { return false; }
 
     static ulong mousePressTime;
@@ -298,8 +303,8 @@ public:
 
     static QInputDeviceManager *inputDeviceManager();
 
-    const QColorProfile *colorProfileForA8Text();
-    const QColorProfile *colorProfileForA32Text();
+    const QColorTrcLut *colorProfileForA8Text();
+    const QColorTrcLut *colorProfileForA32Text();
 
     // hook reimplemented in QApplication to apply the QStyle function on the QIcon
     virtual QPixmap applyQIconStyleHelper(QIcon::Mode, const QPixmap &basePixmap) const { return basePixmap; }
@@ -326,8 +331,8 @@ private:
     static QGuiApplicationPrivate *self;
     static QTouchDevice *m_fakeTouchDevice;
     static int m_fakeMouseSourcePointId;
-    QAtomicPointer<QColorProfile> m_a8ColorProfile;
-    QAtomicPointer<QColorProfile> m_a32ColorProfile;
+    QSharedPointer<QColorTrcLut> m_a8ColorProfile;
+    QSharedPointer<QColorTrcLut> m_a32ColorProfile;
 
     bool ownGlobalShareContext;
 
diff --git a/src/gui/kernel/qinputmethod_p.h b/src/gui/kernel/qinputmethod_p.h
index 0c2b739d92..5657edeb4e 100644
--- a/src/gui/kernel/qinputmethod_p.h
+++ b/src/gui/kernel/qinputmethod_p.h
@@ -67,7 +67,7 @@ class QInputMethodPrivate : public QObjectPrivate
     Q_DECLARE_PUBLIC(QInputMethod)
 
 public:
-    inline QInputMethodPrivate() : testContext(0)
+    inline QInputMethodPrivate() : testContext(nullptr)
     {}
     QPlatformInputContext *platformInputContext() const
     {
diff --git a/src/gui/kernel/qkeysequence.cpp b/src/gui/kernel/qkeysequence.cpp
index 74bf6e6b47..8688bb8403 100644
--- a/src/gui/kernel/qkeysequence.cpp
+++ b/src/gui/kernel/qkeysequence.cpp
@@ -46,9 +46,6 @@
 
 #include "qdebug.h"
 #include <QtCore/qhashfunctions.h>
-#ifndef QT_NO_REGEXP
-# include "qregexp.h"
-#endif
 #ifndef QT_NO_DATASTREAM
 # include "qdatastream.h"
 #endif
@@ -1466,7 +1463,7 @@ bool QKeySequence::operator==(const QKeySequence &other) const
     Calculates the hash value of \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QKeySequence &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QKeySequence &key, uint seed) noexcept
 {
     return qHashRange(key.d->key, key.d->key + QKeySequencePrivate::MaxKeyCount, seed);
 }
diff --git a/src/gui/kernel/qkeysequence.h b/src/gui/kernel/qkeysequence.h
index 65f3a93d9c..3dcbbe5941 100644
--- a/src/gui/kernel/qkeysequence.h
+++ b/src/gui/kernel/qkeysequence.h
@@ -66,7 +66,7 @@ void qt_set_sequence_auto_mnemonic(bool b);
 class QVariant;
 class QKeySequencePrivate;
 
-Q_GUI_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QKeySequence &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT Q_DECL_PURE_FUNCTION uint qHash(const QKeySequence &key, uint seed = 0) noexcept;
 
 class Q_GUI_EXPORT QKeySequence
 {
@@ -186,10 +186,8 @@ public:
     operator QVariant() const;
     int operator[](uint i) const;
     QKeySequence &operator=(const QKeySequence &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QKeySequence &operator=(QKeySequence &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
-    void swap(QKeySequence &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    QKeySequence &operator=(QKeySequence &&other) noexcept { swap(other); return *this; }
+    void swap(QKeySequence &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QKeySequence &other) const;
     inline bool operator!= (const QKeySequence &other) const
@@ -214,7 +212,7 @@ private:
 
     friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QKeySequence &ks);
     friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QKeySequence &ks);
-    friend Q_GUI_EXPORT uint qHash(const QKeySequence &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_GUI_EXPORT uint qHash(const QKeySequence &key, uint seed) noexcept;
     friend class QShortcutMap;
     friend class QShortcut;
 
diff --git a/src/gui/kernel/qopenglcontext_p.h b/src/gui/kernel/qopenglcontext_p.h
index 2849d0c58e..c6ad893ee6 100644
--- a/src/gui/kernel/qopenglcontext_p.h
+++ b/src/gui/kernel/qopenglcontext_p.h
@@ -131,7 +131,7 @@ class Q_GUI_EXPORT QOpenGLContextGroupPrivate : public QObjectPrivate
     Q_DECLARE_PUBLIC(QOpenGLContextGroup)
 public:
     QOpenGLContextGroupPrivate()
-        : m_context(0)
+        : m_context(nullptr)
         , m_mutex(QMutex::Recursive)
         , m_refs(0)
     {
@@ -198,20 +198,20 @@ class Q_GUI_EXPORT QOpenGLContextPrivate : public QObjectPrivate
     Q_DECLARE_PUBLIC(QOpenGLContext)
 public:
     QOpenGLContextPrivate()
-        : qGLContextHandle(0)
-        , qGLContextDeleteFunction(0)
-        , platformGLContext(0)
-        , shareContext(0)
-        , shareGroup(0)
-        , screen(0)
-        , surface(0)
-        , functions(0)
-        , textureFunctions(0)
+        : qGLContextHandle(nullptr)
+        , qGLContextDeleteFunction(nullptr)
+        , platformGLContext(nullptr)
+        , shareContext(nullptr)
+        , shareGroup(nullptr)
+        , screen(nullptr)
+        , surface(nullptr)
+        , functions(nullptr)
+        , textureFunctions(nullptr)
         , max_texture_size(-1)
         , workaround_brokenFBOReadBack(false)
         , workaround_brokenTexSubImage(false)
         , workaround_missingPrecisionQualifiers(false)
-        , active_engine(0)
+        , active_engine(nullptr)
         , qgl_current_fbo_invalid(false)
         , qgl_current_fbo(nullptr)
         , defaultFboRedirect(0)
diff --git a/src/gui/kernel/qpalette.cpp b/src/gui/kernel/qpalette.cpp
index b4383c5bfc..f6e5fa0a52 100644
--- a/src/gui/kernel/qpalette.cpp
+++ b/src/gui/kernel/qpalette.cpp
@@ -1204,7 +1204,7 @@ QDebug operator<<(QDebug dbg, const QPalette &p)
     QDebugStateSaver saver(dbg);
     QDebug nospace = dbg.nospace();
     const uint mask = p.resolve();
-    nospace << "QPalette(resolve=" << hex << showbase << mask << ',';
+    nospace << "QPalette(resolve=" << Qt::hex << Qt::showbase << mask << ',';
     for (int role = 0; role < (int)QPalette::NColorRoles; ++role) {
         if (mask & (1<<role)) {
             if (role)
@@ -1220,7 +1220,7 @@ QDebug operator<<(QDebug dbg, const QPalette &p)
             nospace << ']';
         }
     }
-    nospace << ')' << noshowbase << dec;
+    nospace << ')' << Qt::noshowbase << Qt::dec;
     return dbg;
 }
 #endif
diff --git a/src/gui/kernel/qpalette.h b/src/gui/kernel/qpalette.h
index e931e01480..d3a840d9ad 100644
--- a/src/gui/kernel/qpalette.h
+++ b/src/gui/kernel/qpalette.h
@@ -67,18 +67,16 @@ public:
     QPalette(const QPalette &palette);
     ~QPalette();
     QPalette &operator=(const QPalette &palette);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPalette(QPalette &&other) Q_DECL_NOTHROW
+    QPalette(QPalette &&other) noexcept
         : d(other.d), data(other.data)
     { other.d = nullptr; }
-    inline QPalette &operator=(QPalette &&other) Q_DECL_NOEXCEPT
+    inline QPalette &operator=(QPalette &&other) noexcept
     {
         for_faster_swapping_dont_use = other.for_faster_swapping_dont_use;
         qSwap(d, other.d); return *this;
     }
-#endif
 
-    void swap(QPalette &other) Q_DECL_NOEXCEPT
+    void swap(QPalette &other) noexcept
     {
         qSwap(d, other.d);
         qSwap(for_faster_swapping_dont_use, other.for_faster_swapping_dont_use);
diff --git a/src/gui/kernel/qpixelformat.h b/src/gui/kernel/qpixelformat.h
index 6b2d6a6ac7..a041a39fc1 100644
--- a/src/gui/kernel/qpixelformat.h
+++ b/src/gui/kernel/qpixelformat.h
@@ -95,7 +95,7 @@ class QPixelFormat
     Q_STATIC_ASSERT(uint(TotalFieldWidthByWidths) == uint(TotalFieldWidthByOffsets));
     Q_STATIC_ASSERT(uint(TotalFieldWidthByWidths) == 8 * sizeof(quint64));
 
-    Q_DECL_CONSTEXPR inline uchar get(Field offset, FieldWidth width) const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline uchar get(Field offset, FieldWidth width) const noexcept
     { return uchar((data >> uint(offset)) & ((Q_UINT64_C(1) << uint(width)) - Q_UINT64_C(1))); }
     Q_DECL_CONSTEXPR static inline quint64 set(Field offset, FieldWidth width, uchar value)
     { return (quint64(value) & ((Q_UINT64_C(1) << uint(width)) - Q_UINT64_C(1))) << uint(offset); }
@@ -160,7 +160,7 @@ public:
         CurrentSystemEndian
     };
 
-    Q_DECL_CONSTEXPR inline QPixelFormat() Q_DECL_NOTHROW : data(0) {}
+    Q_DECL_CONSTEXPR inline QPixelFormat() noexcept : data(0) {}
     Q_DECL_CONSTEXPR inline QPixelFormat(ColorModel colorModel,
                                            uchar firstSize,
                                            uchar secondSize,
@@ -173,47 +173,47 @@ public:
                                            AlphaPremultiplied premultiplied,
                                            TypeInterpretation typeInterpretation,
                                            ByteOrder byteOrder = CurrentSystemEndian,
-                                           uchar subEnum = 0) Q_DECL_NOTHROW;
+                                           uchar subEnum = 0) noexcept;
 
-    Q_DECL_CONSTEXPR inline ColorModel colorModel() const  Q_DECL_NOTHROW { return ColorModel(get(ModelField, ModelFieldWidth)); }
-    Q_DECL_CONSTEXPR inline uchar channelCount() const Q_DECL_NOTHROW { return (get(FirstField, FirstFieldWidth) > 0) +
+    Q_DECL_CONSTEXPR inline ColorModel colorModel() const  noexcept { return ColorModel(get(ModelField, ModelFieldWidth)); }
+    Q_DECL_CONSTEXPR inline uchar channelCount() const noexcept { return (get(FirstField, FirstFieldWidth) > 0) +
                                                                                  (get(SecondField, SecondFieldWidth) > 0) +
                                                                                  (get(ThirdField, ThirdFieldWidth) > 0) +
                                                                                  (get(FourthField, FourthFieldWidth) > 0) +
                                                                                  (get(FifthField, FifthFieldWidth) > 0) +
                                                                                  (get(AlphaField, AlphaFieldWidth) > 0); }
 
-    Q_DECL_CONSTEXPR inline uchar redSize() const Q_DECL_NOTHROW { return get(FirstField, FirstFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar greenSize() const Q_DECL_NOTHROW { return get(SecondField, SecondFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar blueSize() const Q_DECL_NOTHROW { return get(ThirdField, ThirdFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar redSize() const noexcept { return get(FirstField, FirstFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar greenSize() const noexcept { return get(SecondField, SecondFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar blueSize() const noexcept { return get(ThirdField, ThirdFieldWidth); }
 
-    Q_DECL_CONSTEXPR inline uchar cyanSize() const Q_DECL_NOTHROW { return get(FirstField, FirstFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar magentaSize() const Q_DECL_NOTHROW { return get(SecondField, SecondFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar yellowSize() const Q_DECL_NOTHROW { return get(ThirdField, ThirdFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar blackSize() const Q_DECL_NOTHROW { return get(FourthField, FourthFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar cyanSize() const noexcept { return get(FirstField, FirstFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar magentaSize() const noexcept { return get(SecondField, SecondFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar yellowSize() const noexcept { return get(ThirdField, ThirdFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar blackSize() const noexcept { return get(FourthField, FourthFieldWidth); }
 
-    Q_DECL_CONSTEXPR inline uchar hueSize() const Q_DECL_NOTHROW { return get(FirstField, FirstFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar saturationSize() const Q_DECL_NOTHROW { return get(SecondField, SecondFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar lightnessSize() const Q_DECL_NOTHROW { return get(ThirdField, ThirdFieldWidth); }
-    Q_DECL_CONSTEXPR inline uchar brightnessSize() const Q_DECL_NOTHROW { return get(ThirdField, ThirdFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar hueSize() const noexcept { return get(FirstField, FirstFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar saturationSize() const noexcept { return get(SecondField, SecondFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar lightnessSize() const noexcept { return get(ThirdField, ThirdFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar brightnessSize() const noexcept { return get(ThirdField, ThirdFieldWidth); }
 
-    Q_DECL_CONSTEXPR inline uchar alphaSize() const Q_DECL_NOTHROW { return get(AlphaField, AlphaFieldWidth); }
+    Q_DECL_CONSTEXPR inline uchar alphaSize() const noexcept { return get(AlphaField, AlphaFieldWidth); }
 
-    Q_DECL_CONSTEXPR inline uchar bitsPerPixel() const Q_DECL_NOTHROW { return get(FirstField, FirstFieldWidth) +
+    Q_DECL_CONSTEXPR inline uchar bitsPerPixel() const noexcept { return get(FirstField, FirstFieldWidth) +
                                                                                  get(SecondField, SecondFieldWidth) +
                                                                                  get(ThirdField, ThirdFieldWidth) +
                                                                                  get(FourthField, FourthFieldWidth) +
                                                                                  get(FifthField, FifthFieldWidth) +
                                                                                  get(AlphaField, AlphaFieldWidth); }
 
-    Q_DECL_CONSTEXPR inline AlphaUsage alphaUsage() const Q_DECL_NOTHROW { return AlphaUsage(get(AlphaUsageField, AlphaUsageFieldWidth)); }
-    Q_DECL_CONSTEXPR inline AlphaPosition alphaPosition() const Q_DECL_NOTHROW { return AlphaPosition(get(AlphaPositionField, AlphaPositionFieldWidth)); }
-    Q_DECL_CONSTEXPR inline AlphaPremultiplied premultiplied() const Q_DECL_NOTHROW { return AlphaPremultiplied(get(PremulField, PremulFieldWidth)); }
-    Q_DECL_CONSTEXPR inline TypeInterpretation typeInterpretation() const Q_DECL_NOTHROW { return TypeInterpretation(get(TypeInterpretationField, TypeInterpretationFieldWidth)); }
-    Q_DECL_CONSTEXPR inline ByteOrder byteOrder() const Q_DECL_NOTHROW { return ByteOrder(get(ByteOrderField, ByteOrderFieldWidth)); }
+    Q_DECL_CONSTEXPR inline AlphaUsage alphaUsage() const noexcept { return AlphaUsage(get(AlphaUsageField, AlphaUsageFieldWidth)); }
+    Q_DECL_CONSTEXPR inline AlphaPosition alphaPosition() const noexcept { return AlphaPosition(get(AlphaPositionField, AlphaPositionFieldWidth)); }
+    Q_DECL_CONSTEXPR inline AlphaPremultiplied premultiplied() const noexcept { return AlphaPremultiplied(get(PremulField, PremulFieldWidth)); }
+    Q_DECL_CONSTEXPR inline TypeInterpretation typeInterpretation() const noexcept { return TypeInterpretation(get(TypeInterpretationField, TypeInterpretationFieldWidth)); }
+    Q_DECL_CONSTEXPR inline ByteOrder byteOrder() const noexcept { return ByteOrder(get(ByteOrderField, ByteOrderFieldWidth)); }
 
-    Q_DECL_CONSTEXPR inline YUVLayout yuvLayout() const Q_DECL_NOTHROW { return YUVLayout(get(SubEnumField, SubEnumFieldWidth)); }
-    Q_DECL_CONSTEXPR inline uchar subEnum() const Q_DECL_NOTHROW { return get(SubEnumField, SubEnumFieldWidth); }
+    Q_DECL_CONSTEXPR inline YUVLayout yuvLayout() const noexcept { return YUVLayout(get(SubEnumField, SubEnumFieldWidth)); }
+    Q_DECL_CONSTEXPR inline uchar subEnum() const noexcept { return get(SubEnumField, SubEnumFieldWidth); }
 
 private:
     Q_DECL_CONSTEXPR static inline ByteOrder resolveByteOrder(ByteOrder bo)
@@ -255,7 +255,7 @@ QPixelFormat::QPixelFormat(ColorModel mdl,
                            AlphaPremultiplied premult,
                            TypeInterpretation typeInterp,
                            ByteOrder b_order,
-                           uchar s_enum) Q_DECL_NOTHROW
+                           uchar s_enum) noexcept
     : data(set(ModelField, ModelFieldWidth, uchar(mdl)) |
            set(FirstField, FirstFieldWidth, firstSize) |
            set(SecondField, SecondFieldWidth, secondSize) |
@@ -280,7 +280,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatRgba(uchar red,
                                                       QPixelFormat::AlphaUsage usage,
                                                       QPixelFormat::AlphaPosition position,
                                                       QPixelFormat::AlphaPremultiplied pmul=QPixelFormat::NotPremultiplied,
-                                                      QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) Q_DECL_NOTHROW
+                                                      QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) noexcept
 {
     return QPixelFormat(QPixelFormat::RGB,
                         red,
@@ -296,7 +296,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatRgba(uchar red,
 }
 
 Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatGrayscale(uchar channelSize,
-                                                           QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) Q_DECL_NOTHROW
+                                                           QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) noexcept
 {
     return QPixelFormat(QPixelFormat::Grayscale,
                         channelSize,
@@ -312,7 +312,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatGrayscale(uchar channelSize,
 }
 
 Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatAlpha(uchar channelSize,
-                                                       QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) Q_DECL_NOTHROW
+                                                       QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) noexcept
 {
     return QPixelFormat(QPixelFormat::Alpha,
                         0,
@@ -331,7 +331,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatCmyk(uchar channelSize,
                                                       uchar alfa=0,
                                                       QPixelFormat::AlphaUsage usage=QPixelFormat::IgnoresAlpha,
                                                       QPixelFormat::AlphaPosition position=QPixelFormat::AtBeginning,
-                                                      QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) Q_DECL_NOTHROW
+                                                      QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) noexcept
 {
     return QPixelFormat(QPixelFormat::CMYK,
                         channelSize,
@@ -350,7 +350,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatHsl(uchar channelSize,
                                                      uchar alfa=0,
                                                      QPixelFormat::AlphaUsage usage=QPixelFormat::IgnoresAlpha,
                                                      QPixelFormat::AlphaPosition position=QPixelFormat::AtBeginning,
-                                                     QPixelFormat::TypeInterpretation typeInt=QPixelFormat::FloatingPoint) Q_DECL_NOTHROW
+                                                     QPixelFormat::TypeInterpretation typeInt=QPixelFormat::FloatingPoint) noexcept
 {
     return QPixelFormat(QPixelFormat::HSL,
                         channelSize,
@@ -369,7 +369,7 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatHsv(uchar channelSize,
                                                      uchar alfa=0,
                                                      QPixelFormat::AlphaUsage usage=QPixelFormat::IgnoresAlpha,
                                                      QPixelFormat::AlphaPosition position=QPixelFormat::AtBeginning,
-                                                     QPixelFormat::TypeInterpretation typeInt=QPixelFormat::FloatingPoint) Q_DECL_NOTHROW
+                                                     QPixelFormat::TypeInterpretation typeInt=QPixelFormat::FloatingPoint) noexcept
 {
     return QPixelFormat(QPixelFormat::HSV,
                         channelSize,
diff --git a/src/gui/kernel/qplatformintegration.h b/src/gui/kernel/qplatformintegration.h
index 389b35dbc0..b764bd2617 100644
--- a/src/gui/kernel/qplatformintegration.h
+++ b/src/gui/kernel/qplatformintegration.h
@@ -114,7 +114,7 @@ public:
 
     virtual QPlatformPixmap *createPlatformPixmap(QPlatformPixmap::PixelType type) const;
     virtual QPlatformWindow *createPlatformWindow(QWindow *window) const = 0;
-    virtual QPlatformWindow *createForeignWindow(QWindow *, WId) const { return 0; }
+    virtual QPlatformWindow *createForeignWindow(QWindow *, WId) const { return nullptr; }
     virtual QPlatformBackingStore *createPlatformBackingStore(QWindow *window) const = 0;
 #ifndef QT_NO_OPENGL
     virtual QPlatformOpenGLContext *createPlatformOpenGLContext(QOpenGLContext *context) const;
diff --git a/src/gui/kernel/qplatformtheme.h b/src/gui/kernel/qplatformtheme.h
index 54c8c70025..356c4ea3ea 100644
--- a/src/gui/kernel/qplatformtheme.h
+++ b/src/gui/kernel/qplatformtheme.h
@@ -309,7 +309,7 @@ public:
 
     virtual QPixmap standardPixmap(StandardPixmap sp, const QSizeF &size) const;
     virtual QIcon fileIcon(const QFileInfo &fileInfo,
-                           QPlatformTheme::IconOptions iconOptions = 0) const;
+                           QPlatformTheme::IconOptions iconOptions = nullptr) const;
     virtual QIconEngine *createIconEngine(const QString &iconName) const;
 
 #ifndef QT_NO_SHORTCUT
diff --git a/src/gui/kernel/qscreen.cpp b/src/gui/kernel/qscreen.cpp
index 952023dd1b..c79f597414 100644
--- a/src/gui/kernel/qscreen.cpp
+++ b/src/gui/kernel/qscreen.cpp
@@ -768,7 +768,7 @@ QPixmap QScreen::grabWindow(WId window, int x, int y, int width, int height)
 static inline void formatRect(QDebug &debug, const QRect r)
 {
     debug << r.width() << 'x' << r.height()
-        << forcesign << r.x() << r.y() << noforcesign;
+        << Qt::forcesign << r.x() << r.y() << Qt::noforcesign;
 }
 
 Q_GUI_EXPORT QDebug operator<<(QDebug debug, const QScreen *screen)
diff --git a/src/gui/kernel/qscreen_p.h b/src/gui/kernel/qscreen_p.h
index f31658355b..e5988ff829 100644
--- a/src/gui/kernel/qscreen_p.h
+++ b/src/gui/kernel/qscreen_p.h
@@ -64,12 +64,6 @@ class QScreenPrivate : public QObjectPrivate
 {
     Q_DECLARE_PUBLIC(QScreen)
 public:
-    QScreenPrivate()
-        : platformScreen(0)
-        , orientationUpdateMask(0)
-    {
-    }
-
     void setPlatformScreen(QPlatformScreen *screen);
     void updateHighDpi()
     {
@@ -79,16 +73,16 @@ public:
 
     void updatePrimaryOrientation();
 
-    QPlatformScreen *platformScreen;
+    QPlatformScreen *platformScreen = nullptr;
 
     Qt::ScreenOrientations orientationUpdateMask;
-    Qt::ScreenOrientation orientation;
-    Qt::ScreenOrientation filteredOrientation;
-    Qt::ScreenOrientation primaryOrientation;
+    Qt::ScreenOrientation orientation = Qt::PrimaryOrientation;
+    Qt::ScreenOrientation filteredOrientation = Qt::PrimaryOrientation;
+    Qt::ScreenOrientation primaryOrientation = Qt::LandscapeOrientation;
     QRect geometry;
     QRect availableGeometry;
-    QDpi logicalDpi;
-    qreal refreshRate;
+    QDpi logicalDpi = {96, 96};
+    qreal refreshRate = 60;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qshapedpixmapdndwindow_p.h b/src/gui/kernel/qshapedpixmapdndwindow_p.h
index d9a6ea4888..5089be7284 100644
--- a/src/gui/kernel/qshapedpixmapdndwindow_p.h
+++ b/src/gui/kernel/qshapedpixmapdndwindow_p.h
@@ -63,7 +63,7 @@ class QShapedPixmapWindow : public QRasterWindow
 {
     Q_OBJECT
 public:
-    explicit QShapedPixmapWindow(QScreen *screen = 0);
+    explicit QShapedPixmapWindow(QScreen *screen = nullptr);
     ~QShapedPixmapWindow();
 
     void setUseCompositing(bool on) { m_useCompositing = on; }
diff --git a/src/gui/kernel/qsimpledrag.cpp b/src/gui/kernel/qsimpledrag.cpp
index 9aab332ef5..bba2a863a9 100644
--- a/src/gui/kernel/qsimpledrag.cpp
+++ b/src/gui/kernel/qsimpledrag.cpp
@@ -48,7 +48,6 @@
 #include "qpoint.h"
 #include "qbuffer.h"
 #include "qimage.h"
-#include "qregexp.h"
 #include "qdir.h"
 #include "qimagereader.h"
 #include "qimagewriter.h"
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 476a7f2ffb..6bcc22ec7b 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2529,7 +2529,12 @@ void QWindow::tabletEvent(QTabletEvent *ev)
 
     Should return true only if the event was handled.
 */
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWindow::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
 {
     Q_UNUSED(eventType);
     Q_UNUSED(message);
@@ -2830,13 +2835,13 @@ QDebug operator<<(QDebug debug, const QWindow *window)
             if (window->isTopLevel())
                 debug << ", toplevel";
             debug << ", " << geometry.width() << 'x' << geometry.height()
-                << forcesign << geometry.x() << geometry.y() << noforcesign;
+                << Qt::forcesign << geometry.x() << geometry.y() << Qt::noforcesign;
             const QMargins margins = window->frameMargins();
             if (!margins.isNull())
                 debug << ", margins=" << margins;
             debug << ", devicePixelRatio=" << window->devicePixelRatio();
             if (const QPlatformWindow *platformWindow = window->handle())
-                debug << ", winId=0x" << hex << platformWindow->winId() << dec;
+                debug << ", winId=0x" << Qt::hex << platformWindow->winId() << Qt::dec;
             if (const QScreen *screen = window->screen())
                 debug << ", on " << screen->name();
         }
diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h
index 1be3c845fe..5ee1d00f5b 100644
--- a/src/gui/kernel/qwindow.h
+++ b/src/gui/kernel/qwindow.h
@@ -364,7 +364,11 @@ protected:
 #if QT_CONFIG(tabletevent)
     virtual void tabletEvent(QTabletEvent *);
 #endif
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    virtual bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
     virtual bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
 
     QWindow(QWindowPrivate &dd, QWindow *parent);
 
diff --git a/src/gui/kernel/qwindow_p.h b/src/gui/kernel/qwindow_p.h
index b8fa77bef0..d918ed5b52 100644
--- a/src/gui/kernel/qwindow_p.h
+++ b/src/gui/kernel/qwindow_p.h
@@ -77,50 +77,15 @@ public:
 
     QWindowPrivate()
         : QObjectPrivate()
-        , surfaceType(QWindow::RasterSurface)
-        , windowFlags(Qt::Window)
-        , parentWindow(0)
-        , platformWindow(0)
-        , visible(false)
-        , visibilityOnDestroy(false)
-        , exposed(false)
-        , windowState(Qt::WindowNoState)
-        , visibility(QWindow::Hidden)
-        , resizeEventPending(true)
-        , receivedExpose(false)
-        , positionPolicy(WindowFrameExclusive)
-        , positionAutomatic(true)
-        , resizeAutomatic(true)
-        , contentOrientation(Qt::PrimaryOrientation)
-        , opacity(qreal(1.0))
-        , minimumSize(0, 0)
-        , maximumSize(QWINDOWSIZE_MAX, QWINDOWSIZE_MAX)
-        , modality(Qt::NonModal)
-        , blockedByModalWindow(false)
-        , updateRequestPending(false)
-        , transientParent(0)
-        , topLevelScreen(0)
-#ifndef QT_NO_CURSOR
-        , cursor(Qt::ArrowCursor)
-        , hasCursor(false)
-#endif
-        , compositing(false)
-#if QT_CONFIG(vulkan)
-        , vulkanInstance(nullptr)
-#endif
     {
         isWindow = true;
     }
 
-    ~QWindowPrivate()
-    {
-    }
-
     void init(QScreen *targetScreen = nullptr);
 
     void maybeQuitOnLastWindowClosed();
 #ifndef QT_NO_CURSOR
-    void setCursor(const QCursor *c = 0);
+    void setCursor(const QCursor *c = nullptr);
     bool applyCursor();
 #endif
 
@@ -164,57 +129,59 @@ public:
 
     static Qt::WindowState effectiveState(Qt::WindowStates);
 
-    QWindow::SurfaceType surfaceType;
-    Qt::WindowFlags windowFlags;
-    QWindow *parentWindow;
-    QPlatformWindow *platformWindow;
-    bool visible;
-    bool visibilityOnDestroy;
-    bool exposed;
+    virtual bool allowClickThrough(const QPoint &) const { return true; }
+
+    QWindow::SurfaceType surfaceType = QWindow::RasterSurface;
+    Qt::WindowFlags windowFlags = Qt::Window;
+    QWindow *parentWindow = nullptr;
+    QPlatformWindow *platformWindow = nullptr;
+    bool visible= false;
+    bool visibilityOnDestroy = false;
+    bool exposed = false;
     QSurfaceFormat requestedFormat;
     QString windowTitle;
     QString windowFilePath;
     QIcon windowIcon;
     QRect geometry;
-    Qt::WindowStates windowState;
-    QWindow::Visibility visibility;
-    bool resizeEventPending;
-    bool receivedExpose;
-    PositionPolicy positionPolicy;
-    bool positionAutomatic;
+    Qt::WindowStates windowState = Qt::WindowNoState;
+    QWindow::Visibility visibility = QWindow::Hidden;
+    bool resizeEventPending = true;
+    bool receivedExpose = false;
+    PositionPolicy positionPolicy = WindowFrameExclusive;
+    bool positionAutomatic = true;
     // resizeAutomatic suppresses resizing by QPlatformWindow::initialGeometry().
     // It also indicates that width/height=0 is acceptable (for example, for
     // the QRollEffect widget) and is thus not cleared in setGeometry().
     // An alternative approach might be using -1,-1 as a default size.
-    bool resizeAutomatic;
-    Qt::ScreenOrientation contentOrientation;
-    qreal opacity;
+    bool resizeAutomatic = true;
+    Qt::ScreenOrientation contentOrientation = Qt::PrimaryOrientation;
+    qreal opacity= 1;
     QRegion mask;
 
-    QSize minimumSize;
-    QSize maximumSize;
+    QSize minimumSize = {0, 0};
+    QSize maximumSize = {QWINDOWSIZE_MAX, QWINDOWSIZE_MAX};
     QSize baseSize;
     QSize sizeIncrement;
 
-    Qt::WindowModality modality;
-    bool blockedByModalWindow;
+    Qt::WindowModality modality = Qt::NonModal;
+    bool blockedByModalWindow = false;
 
-    bool updateRequestPending;
+    bool updateRequestPending = false;
     bool transientParentPropertySet = false;
 
     QPointer<QWindow> transientParent;
     QPointer<QScreen> topLevelScreen;
 
 #ifndef QT_NO_CURSOR
-    QCursor cursor;
-    bool hasCursor;
+    QCursor cursor = {Qt::ArrowCursor};
+    bool hasCursor = false;
 #endif
 
-    bool compositing;
+    bool compositing = false;
     QElapsedTimer lastComposeTime;
 
 #if QT_CONFIG(vulkan)
-    QVulkanInstance *vulkanInstance;
+    QVulkanInstance *vulkanInstance = nullptr;
 #endif
 };
 
diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp
index 759671fbd7..6f3edb10b4 100644
--- a/src/gui/kernel/qwindowsysteminterface.cpp
+++ b/src/gui/kernel/qwindowsysteminterface.cpp
@@ -924,7 +924,11 @@ QPlatformDropQtResponse QWindowSystemInterface::handleDrop(QWindow *window, cons
     \note This function can only be called from the GUI thread.
 */
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result)
+#endif
 {
     return QGuiApplicationPrivate::processNativeEvent(window, eventType, message, result);
 }
diff --git a/src/gui/kernel/qwindowsysteminterface.h b/src/gui/kernel/qwindowsysteminterface.h
index bf98c33a1a..fd70eda9ff 100644
--- a/src/gui/kernel/qwindowsysteminterface.h
+++ b/src/gui/kernel/qwindowsysteminterface.h
@@ -230,7 +230,11 @@ public:
                                               Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers);
 #endif // QT_CONFIG(draganddrop)
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    static bool handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result);
+#else
     static bool handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result);
+#endif
 
     // Changes to the screen
     static void handleScreenAdded(QPlatformScreen *screen, bool isPrimary = false);
diff --git a/src/gui/kernel/qwindowsysteminterface_p.h b/src/gui/kernel/qwindowsysteminterface_p.h
index 6c818a9030..d6513f1836 100644
--- a/src/gui/kernel/qwindowsysteminterface_p.h
+++ b/src/gui/kernel/qwindowsysteminterface_p.h
@@ -123,7 +123,7 @@ public:
 
     class CloseEvent : public WindowSystemEvent {
     public:
-        explicit CloseEvent(QWindow *w, bool *a = 0)
+        explicit CloseEvent(QWindow *w, bool *a = nullptr)
             : WindowSystemEvent(Close), window(w), accepted(a)
             { }
         QPointer<QWindow> window;
@@ -398,7 +398,7 @@ public:
     class TabletEnterProximityEvent : public InputEvent {
     public:
         TabletEnterProximityEvent(ulong time, int device, int pointerType, qint64 uid)
-            : InputEvent(0, time, TabletEnterProximity, Qt::NoModifier),
+            : InputEvent(nullptr, time, TabletEnterProximity, Qt::NoModifier),
               device(device), pointerType(pointerType), uid(uid) { }
         int device;
         int pointerType;
@@ -408,7 +408,7 @@ public:
     class TabletLeaveProximityEvent : public InputEvent {
     public:
         TabletLeaveProximityEvent(ulong time, int device, int pointerType, qint64 uid)
-            : InputEvent(0, time, TabletLeaveProximity, Qt::NoModifier),
+            : InputEvent(nullptr, time, TabletLeaveProximity, Qt::NoModifier),
               device(device), pointerType(pointerType), uid(uid) { }
         int device;
         int pointerType;
@@ -474,7 +474,7 @@ public:
             for (int i = 0; i < impl.size(); ++i)
                 if (!(impl.at(i)->type & QWindowSystemInterfacePrivate::UserInputEvent))
                     return impl.takeAt(i);
-            return 0;
+            return nullptr;
         }
         bool nonUserInputEventsQueued()
         {
@@ -495,7 +495,7 @@ public:
                 if (impl.at(i)->type == t)
                     return impl.at(i);
             }
-            return 0;
+            return nullptr;
         }
         void remove(const WindowSystemEvent *e)
         {
diff --git a/src/gui/math3d/qgenericmatrix.h b/src/gui/math3d/qgenericmatrix.h
index 6a2a9e5bae..692c29c996 100644
--- a/src/gui/math3d/qgenericmatrix.h
+++ b/src/gui/math3d/qgenericmatrix.h
@@ -351,11 +351,11 @@ QDebug operator<<(QDebug dbg, const QGenericMatrix<N, M, T> &m)
     QDebugStateSaver saver(dbg);
     dbg.nospace() << "QGenericMatrix<" << N << ", " << M
         << ", " << QTypeInfo<T>::name()
-        << ">(" << endl << qSetFieldWidth(10);
+        << ">(" << Qt::endl << qSetFieldWidth(10);
     for (int row = 0; row < M; ++row) {
         for (int col = 0; col < N; ++col)
             dbg << m(row, col);
-        dbg << endl;
+        dbg << Qt::endl;
     }
     dbg << qSetFieldWidth(0) << ')';
     return dbg;
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index 045fa210c4..ad4cdfdbf4 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -2037,12 +2037,12 @@ QDebug operator<<(QDebug dbg, const QMatrix4x4 &m)
     }
 
     // Output in row-major order because it is more human-readable.
-    dbg.nospace() << "QMatrix4x4(type:" << bits.constData() << endl
+    dbg.nospace() << "QMatrix4x4(type:" << bits.constData() << Qt::endl
         << qSetFieldWidth(10)
-        << m(0, 0) << m(0, 1) << m(0, 2) << m(0, 3) << endl
-        << m(1, 0) << m(1, 1) << m(1, 2) << m(1, 3) << endl
-        << m(2, 0) << m(2, 1) << m(2, 2) << m(2, 3) << endl
-        << m(3, 0) << m(3, 1) << m(3, 2) << m(3, 3) << endl
+        << m(0, 0) << m(0, 1) << m(0, 2) << m(0, 3) << Qt::endl
+        << m(1, 0) << m(1, 1) << m(1, 2) << m(1, 3) << Qt::endl
+        << m(2, 0) << m(2, 1) << m(2, 2) << m(2, 3) << Qt::endl
+        << m(3, 0) << m(3, 1) << m(3, 2) << m(3, 3) << Qt::endl
         << qSetFieldWidth(0) << ')';
     return dbg;
 }
diff --git a/src/gui/opengl/qopengl.cpp b/src/gui/opengl/qopengl.cpp
index 2b1e57a4bb..667d16317f 100644
--- a/src/gui/opengl/qopengl.cpp
+++ b/src/gui/opengl/qopengl.cpp
@@ -80,7 +80,7 @@ QOpenGLExtensionMatcher::QOpenGLExtensionMatcher()
     if (extensionStr) {
         QByteArray ba(extensionStr);
         QList<QByteArray> extensions = ba.split(' ');
-        m_extensions = extensions.toSet();
+        m_extensions = QSet<QByteArray>(extensions.constBegin(), extensions.constEnd());
     } else {
 #ifdef QT_OPENGL_3
         // clear error state
@@ -136,7 +136,7 @@ QDebug operator<<(QDebug d, const QOpenGLConfig::Gpu &g)
     d.nospace();
     d << "Gpu(";
     if (g.isValid()) {
-        d << "vendor=" << hex << showbase <<g.vendorId << ", device=" << g.deviceId
+        d << "vendor=" << Qt::hex << Qt::showbase <<g.vendorId << ", device=" << g.deviceId
           << "version=" << g.driverVersion;
     } else {
         d << 0;
diff --git a/src/gui/opengl/qopengldebug.h b/src/gui/opengl/qopengldebug.h
index 556ec175e1..7363985d60 100644
--- a/src/gui/opengl/qopengldebug.h
+++ b/src/gui/opengl/qopengldebug.h
@@ -110,12 +110,10 @@ public:
     QOpenGLDebugMessage(const QOpenGLDebugMessage &debugMessage);
 
     QOpenGLDebugMessage &operator=(const QOpenGLDebugMessage &debugMessage);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QOpenGLDebugMessage &operator=(QOpenGLDebugMessage &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QOpenGLDebugMessage &operator=(QOpenGLDebugMessage &&other) noexcept { swap(other); return *this; }
     ~QOpenGLDebugMessage();
 
-    void swap(QOpenGLDebugMessage &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QOpenGLDebugMessage &other) noexcept { qSwap(d, other.d); }
 
     Source source() const;
     Type type() const;
diff --git a/src/gui/opengl/qopenglengineshadermanager_p.h b/src/gui/opengl/qopenglengineshadermanager_p.h
index d43788d777..14c79f5de3 100644
--- a/src/gui/opengl/qopenglengineshadermanager_p.h
+++ b/src/gui/opengl/qopenglengineshadermanager_p.h
@@ -370,7 +370,7 @@ private:
 class QOpenGLEngineShaderProg
 {
 public:
-    QOpenGLEngineShaderProg() : program(0) {}
+    QOpenGLEngineShaderProg() : program(nullptr) {}
 
     ~QOpenGLEngineShaderProg() {
         if (program)
diff --git a/src/gui/opengl/qopengles2ext.h b/src/gui/opengl/qopengles2ext.h
index 8ff50a924e..8517e24267 100644
--- a/src/gui/opengl/qopengles2ext.h
+++ b/src/gui/opengl/qopengles2ext.h
@@ -1,5 +1,5 @@
-#ifndef __gl2ext_h_
-#define __gl2ext_h_ 1
+#ifndef __gles2_gl2ext_h_
+#define __gles2_gl2ext_h_ 1
 
 #if 0
 #pragma qt_no_master_include
@@ -25,7 +25,7 @@ typedef struct __GLsync *GLsync;
 #endif
 
 /*
-** Copyright (c) 2013-2017 The Khronos Group Inc.
+** Copyright (c) 2013-2018 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
@@ -57,7 +57,7 @@ typedef struct __GLsync *GLsync;
 #define GL_APIENTRYP GL_APIENTRY*
 #endif
 
-/* Generated on date 20170331 */
+/* Generated on date 20190228 */
 
 /* Generated C header for:
  * API: gles2
@@ -178,6 +178,16 @@ GL_APICALL void GL_APIENTRY glGetPointervKHR (GLenum pname, void **params);
 #define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR  0x00000008
 #endif /* GL_KHR_no_error */
 
+#ifndef GL_KHR_parallel_shader_compile
+#define GL_KHR_parallel_shader_compile 1
+#define GL_MAX_SHADER_COMPILER_THREADS_KHR 0x91B0
+#define GL_COMPLETION_STATUS_KHR          0x91B1
+typedef void (GL_APIENTRYP PFNGLMAXSHADERCOMPILERTHREADSKHRPROC) (GLuint count);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glMaxShaderCompilerThreadsKHR (GLuint count);
+#endif
+#endif /* GL_KHR_parallel_shader_compile */
+
 #ifndef GL_KHR_robust_buffer_access_behavior
 #define GL_KHR_robust_buffer_access_behavior 1
 #endif /* GL_KHR_robust_buffer_access_behavior */
@@ -343,12 +353,12 @@ GL_APICALL GLboolean GL_APIENTRY glIsEnablediOES (GLenum target, GLuint index);
 typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXOESPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 typedef void (GL_APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXOESPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXOESPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex);
-typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXOESPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
+typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXEXTPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY glDrawElementsBaseVertexOES (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 GL_APICALL void GL_APIENTRY glDrawRangeElementsBaseVertexOES (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseVertexOES (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex);
-GL_APICALL void GL_APIENTRY glMultiDrawElementsBaseVertexOES (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
+GL_APICALL void GL_APIENTRY glMultiDrawElementsBaseVertexEXT (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
 #endif
 #endif /* GL_OES_draw_elements_base_vertex */
 
@@ -810,6 +820,22 @@ GL_APICALL void GL_APIENTRY glGetFloati_vOES (GLenum target, GLuint index, GLflo
 #define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE
 #endif /* GL_AMD_compressed_ATC_texture */
 
+#ifndef GL_AMD_framebuffer_multisample_advanced
+#define GL_AMD_framebuffer_multisample_advanced 1
+#define GL_RENDERBUFFER_STORAGE_SAMPLES_AMD 0x91B2
+#define GL_MAX_COLOR_FRAMEBUFFER_SAMPLES_AMD 0x91B3
+#define GL_MAX_COLOR_FRAMEBUFFER_STORAGE_SAMPLES_AMD 0x91B4
+#define GL_MAX_DEPTH_STENCIL_FRAMEBUFFER_SAMPLES_AMD 0x91B5
+#define GL_NUM_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B6
+#define GL_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B7
+typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+typedef void (GL_APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleAdvancedAMD (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+GL_APICALL void GL_APIENTRY glNamedRenderbufferStorageMultisampleAdvancedAMD (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+#endif
+#endif /* GL_AMD_framebuffer_multisample_advanced */
+
 #ifndef GL_AMD_performance_monitor
 #define GL_AMD_performance_monitor 1
 #define GL_COUNTER_TYPE_AMD               0x8BC0
@@ -1070,6 +1096,20 @@ GL_APICALL void GL_APIENTRY glGetSyncivAPPLE (GLsync sync, GLenum pname, GLsizei
 #define GL_SHADER_BINARY_DMP              0x9250
 #endif /* GL_DMP_shader_binary */
 
+#ifndef GL_EXT_EGL_image_array
+#define GL_EXT_EGL_image_array 1
+#endif /* GL_EXT_EGL_image_array */
+
+#ifndef GL_EXT_EGL_image_storage
+#define GL_EXT_EGL_image_storage 1
+typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXSTORAGEEXTPROC) (GLenum target, GLeglImageOES image, const GLint* attrib_list);
+typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURESTORAGEEXTPROC) (GLuint texture, GLeglImageOES image, const GLint* attrib_list);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glEGLImageTargetTexStorageEXT (GLenum target, GLeglImageOES image, const GLint* attrib_list);
+GL_APICALL void GL_APIENTRY glEGLImageTargetTextureStorageEXT (GLuint texture, GLeglImageOES image, const GLint* attrib_list);
+#endif
+#endif /* GL_EXT_EGL_image_storage */
+
 #ifndef GL_EXT_YUV_target
 #define GL_EXT_YUV_target 1
 #define GL_SAMPLER_EXTERNAL_2D_Y2Y_EXT    0x8BE7
@@ -1141,6 +1181,20 @@ GL_APICALL void GL_APIENTRY glClearTexSubImageEXT (GLuint texture, GLint level,
 #endif
 #endif /* GL_EXT_clear_texture */
 
+#ifndef GL_EXT_clip_control
+#define GL_EXT_clip_control 1
+#define GL_LOWER_LEFT_EXT                 0x8CA1
+#define GL_UPPER_LEFT_EXT                 0x8CA2
+#define GL_NEGATIVE_ONE_TO_ONE_EXT        0x935E
+#define GL_ZERO_TO_ONE_EXT                0x935F
+#define GL_CLIP_ORIGIN_EXT                0x935C
+#define GL_CLIP_DEPTH_MODE_EXT            0x935D
+typedef void (GL_APIENTRYP PFNGLCLIPCONTROLEXTPROC) (GLenum origin, GLenum depth);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glClipControlEXT (GLenum origin, GLenum depth);
+#endif
+#endif /* GL_EXT_clip_control */
+
 #ifndef GL_EXT_clip_cull_distance
 #define GL_EXT_clip_cull_distance 1
 #define GL_MAX_CLIP_DISTANCES_EXT         0x0D32
@@ -1211,6 +1265,11 @@ GL_APICALL void GL_APIENTRY glPopGroupMarkerEXT (void);
 #endif
 #endif /* GL_EXT_debug_marker */
 
+#ifndef GL_EXT_depth_clamp
+#define GL_EXT_depth_clamp 1
+#define GL_DEPTH_CLAMP_EXT                0x864F
+#endif /* GL_EXT_depth_clamp */
+
 #ifndef GL_EXT_discard_framebuffer
 #define GL_EXT_discard_framebuffer 1
 #define GL_COLOR_EXT                      0x1800
@@ -1326,12 +1385,10 @@ GL_APICALL GLboolean GL_APIENTRY glIsEnablediEXT (GLenum target, GLuint index);
 typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 typedef void (GL_APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXEXTPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex);
-typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXEXTPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY glDrawElementsBaseVertexEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 GL_APICALL void GL_APIENTRY glDrawRangeElementsBaseVertexEXT (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
 GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseVertexEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex);
-GL_APICALL void GL_APIENTRY glMultiDrawElementsBaseVertexEXT (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex);
 #endif
 #endif /* GL_EXT_draw_elements_base_vertex */
 
@@ -1355,6 +1412,17 @@ GL_APICALL void GL_APIENTRY glDrawTransformFeedbackInstancedEXT (GLenum mode, GL
 #endif
 #endif /* GL_EXT_draw_transform_feedback */
 
+#ifndef GL_EXT_external_buffer
+#define GL_EXT_external_buffer 1
+typedef void *GLeglClientBufferEXT;
+typedef void (GL_APIENTRYP PFNGLBUFFERSTORAGEEXTERNALEXTPROC) (GLenum target, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+typedef void (GL_APIENTRYP PFNGLNAMEDBUFFERSTORAGEEXTERNALEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glBufferStorageExternalEXT (GLenum target, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+GL_APICALL void GL_APIENTRY glNamedBufferStorageExternalEXT (GLuint buffer, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+#endif
+#endif /* GL_EXT_external_buffer */
+
 #ifndef GL_EXT_float_blend
 #define GL_EXT_float_blend 1
 #endif /* GL_EXT_float_blend */
@@ -1433,6 +1501,85 @@ GL_APICALL void GL_APIENTRY glFlushMappedBufferRangeEXT (GLenum target, GLintptr
 #endif
 #endif /* GL_EXT_map_buffer_range */
 
+#ifndef GL_EXT_memory_object
+#define GL_EXT_memory_object 1
+#define GL_TEXTURE_TILING_EXT             0x9580
+#define GL_DEDICATED_MEMORY_OBJECT_EXT    0x9581
+#define GL_PROTECTED_MEMORY_OBJECT_EXT    0x959B
+#define GL_NUM_TILING_TYPES_EXT           0x9582
+#define GL_TILING_TYPES_EXT               0x9583
+#define GL_OPTIMAL_TILING_EXT             0x9584
+#define GL_LINEAR_TILING_EXT              0x9585
+#define GL_NUM_DEVICE_UUIDS_EXT           0x9596
+#define GL_DEVICE_UUID_EXT                0x9597
+#define GL_DRIVER_UUID_EXT                0x9598
+#define GL_UUID_SIZE_EXT                  16
+typedef void (GL_APIENTRYP PFNGLGETUNSIGNEDBYTEVEXTPROC) (GLenum pname, GLubyte *data);
+typedef void (GL_APIENTRYP PFNGLGETUNSIGNEDBYTEI_VEXTPROC) (GLenum target, GLuint index, GLubyte *data);
+typedef void (GL_APIENTRYP PFNGLDELETEMEMORYOBJECTSEXTPROC) (GLsizei n, const GLuint *memoryObjects);
+typedef GLboolean (GL_APIENTRYP PFNGLISMEMORYOBJECTEXTPROC) (GLuint memoryObject);
+typedef void (GL_APIENTRYP PFNGLCREATEMEMORYOBJECTSEXTPROC) (GLsizei n, GLuint *memoryObjects);
+typedef void (GL_APIENTRYP PFNGLMEMORYOBJECTPARAMETERIVEXTPROC) (GLuint memoryObject, GLenum pname, const GLint *params);
+typedef void (GL_APIENTRYP PFNGLGETMEMORYOBJECTPARAMETERIVEXTPROC) (GLuint memoryObject, GLenum pname, GLint *params);
+typedef void (GL_APIENTRYP PFNGLTEXSTORAGEMEM2DEXTPROC) (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXSTORAGEMEM2DMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXSTORAGEMEM3DEXTPROC) (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXSTORAGEMEM3DMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLBUFFERSTORAGEMEMEXTPROC) (GLenum target, GLsizeiptr size, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGEMEM2DEXTPROC) (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGEMEM2DMULTISAMPLEEXTPROC) (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGEMEM3DEXTPROC) (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGEMEM3DMULTISAMPLEEXTPROC) (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLNAMEDBUFFERSTORAGEMEMEXTPROC) (GLuint buffer, GLsizeiptr size, GLuint memory, GLuint64 offset);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glGetUnsignedBytevEXT (GLenum pname, GLubyte *data);
+GL_APICALL void GL_APIENTRY glGetUnsignedBytei_vEXT (GLenum target, GLuint index, GLubyte *data);
+GL_APICALL void GL_APIENTRY glDeleteMemoryObjectsEXT (GLsizei n, const GLuint *memoryObjects);
+GL_APICALL GLboolean GL_APIENTRY glIsMemoryObjectEXT (GLuint memoryObject);
+GL_APICALL void GL_APIENTRY glCreateMemoryObjectsEXT (GLsizei n, GLuint *memoryObjects);
+GL_APICALL void GL_APIENTRY glMemoryObjectParameterivEXT (GLuint memoryObject, GLenum pname, const GLint *params);
+GL_APICALL void GL_APIENTRY glGetMemoryObjectParameterivEXT (GLuint memoryObject, GLenum pname, GLint *params);
+GL_APICALL void GL_APIENTRY glTexStorageMem2DEXT (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTexStorageMem2DMultisampleEXT (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTexStorageMem3DEXT (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTexStorageMem3DMultisampleEXT (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glBufferStorageMemEXT (GLenum target, GLsizeiptr size, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTextureStorageMem2DEXT (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTextureStorageMem2DMultisampleEXT (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTextureStorageMem3DEXT (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTextureStorageMem3DMultisampleEXT (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glNamedBufferStorageMemEXT (GLuint buffer, GLsizeiptr size, GLuint memory, GLuint64 offset);
+#endif
+#endif /* GL_EXT_memory_object */
+
+#ifndef GL_EXT_memory_object_fd
+#define GL_EXT_memory_object_fd 1
+#define GL_HANDLE_TYPE_OPAQUE_FD_EXT      0x9586
+typedef void (GL_APIENTRYP PFNGLIMPORTMEMORYFDEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, GLint fd);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glImportMemoryFdEXT (GLuint memory, GLuint64 size, GLenum handleType, GLint fd);
+#endif
+#endif /* GL_EXT_memory_object_fd */
+
+#ifndef GL_EXT_memory_object_win32
+#define GL_EXT_memory_object_win32 1
+#define GL_HANDLE_TYPE_OPAQUE_WIN32_EXT   0x9587
+#define GL_HANDLE_TYPE_OPAQUE_WIN32_KMT_EXT 0x9588
+#define GL_DEVICE_LUID_EXT                0x9599
+#define GL_DEVICE_NODE_MASK_EXT           0x959A
+#define GL_LUID_SIZE_EXT                  8
+#define GL_HANDLE_TYPE_D3D12_TILEPOOL_EXT 0x9589
+#define GL_HANDLE_TYPE_D3D12_RESOURCE_EXT 0x958A
+#define GL_HANDLE_TYPE_D3D11_IMAGE_EXT    0x958B
+#define GL_HANDLE_TYPE_D3D11_IMAGE_KMT_EXT 0x958C
+typedef void (GL_APIENTRYP PFNGLIMPORTMEMORYWIN32HANDLEEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, void *handle);
+typedef void (GL_APIENTRYP PFNGLIMPORTMEMORYWIN32NAMEEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, const void *name);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glImportMemoryWin32HandleEXT (GLuint memory, GLuint64 size, GLenum handleType, void *handle);
+GL_APICALL void GL_APIENTRY glImportMemoryWin32NameEXT (GLuint memory, GLuint64 size, GLenum handleType, const void *name);
+#endif
+#endif /* GL_EXT_memory_object_win32 */
+
 #ifndef GL_EXT_multi_draw_arrays
 #define GL_EXT_multi_draw_arrays 1
 typedef void (GL_APIENTRYP PFNGLMULTIDRAWARRAYSEXTPROC) (GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount);
@@ -1598,6 +1745,55 @@ GL_APICALL void GL_APIENTRY glGetnUniformivEXT (GLuint program, GLint location,
 #define GL_FRAMEBUFFER_SRGB_EXT           0x8DB9
 #endif /* GL_EXT_sRGB_write_control */
 
+#ifndef GL_EXT_semaphore
+#define GL_EXT_semaphore 1
+#define GL_LAYOUT_GENERAL_EXT             0x958D
+#define GL_LAYOUT_COLOR_ATTACHMENT_EXT    0x958E
+#define GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT 0x958F
+#define GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT 0x9590
+#define GL_LAYOUT_SHADER_READ_ONLY_EXT    0x9591
+#define GL_LAYOUT_TRANSFER_SRC_EXT        0x9592
+#define GL_LAYOUT_TRANSFER_DST_EXT        0x9593
+#define GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT 0x9530
+#define GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT 0x9531
+typedef void (GL_APIENTRYP PFNGLGENSEMAPHORESEXTPROC) (GLsizei n, GLuint *semaphores);
+typedef void (GL_APIENTRYP PFNGLDELETESEMAPHORESEXTPROC) (GLsizei n, const GLuint *semaphores);
+typedef GLboolean (GL_APIENTRYP PFNGLISSEMAPHOREEXTPROC) (GLuint semaphore);
+typedef void (GL_APIENTRYP PFNGLSEMAPHOREPARAMETERUI64VEXTPROC) (GLuint semaphore, GLenum pname, const GLuint64 *params);
+typedef void (GL_APIENTRYP PFNGLGETSEMAPHOREPARAMETERUI64VEXTPROC) (GLuint semaphore, GLenum pname, GLuint64 *params);
+typedef void (GL_APIENTRYP PFNGLWAITSEMAPHOREEXTPROC) (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *srcLayouts);
+typedef void (GL_APIENTRYP PFNGLSIGNALSEMAPHOREEXTPROC) (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *dstLayouts);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glGenSemaphoresEXT (GLsizei n, GLuint *semaphores);
+GL_APICALL void GL_APIENTRY glDeleteSemaphoresEXT (GLsizei n, const GLuint *semaphores);
+GL_APICALL GLboolean GL_APIENTRY glIsSemaphoreEXT (GLuint semaphore);
+GL_APICALL void GL_APIENTRY glSemaphoreParameterui64vEXT (GLuint semaphore, GLenum pname, const GLuint64 *params);
+GL_APICALL void GL_APIENTRY glGetSemaphoreParameterui64vEXT (GLuint semaphore, GLenum pname, GLuint64 *params);
+GL_APICALL void GL_APIENTRY glWaitSemaphoreEXT (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *srcLayouts);
+GL_APICALL void GL_APIENTRY glSignalSemaphoreEXT (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *dstLayouts);
+#endif
+#endif /* GL_EXT_semaphore */
+
+#ifndef GL_EXT_semaphore_fd
+#define GL_EXT_semaphore_fd 1
+typedef void (GL_APIENTRYP PFNGLIMPORTSEMAPHOREFDEXTPROC) (GLuint semaphore, GLenum handleType, GLint fd);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glImportSemaphoreFdEXT (GLuint semaphore, GLenum handleType, GLint fd);
+#endif
+#endif /* GL_EXT_semaphore_fd */
+
+#ifndef GL_EXT_semaphore_win32
+#define GL_EXT_semaphore_win32 1
+#define GL_HANDLE_TYPE_D3D12_FENCE_EXT    0x9594
+#define GL_D3D12_FENCE_VALUE_EXT          0x9595
+typedef void (GL_APIENTRYP PFNGLIMPORTSEMAPHOREWIN32HANDLEEXTPROC) (GLuint semaphore, GLenum handleType, void *handle);
+typedef void (GL_APIENTRYP PFNGLIMPORTSEMAPHOREWIN32NAMEEXTPROC) (GLuint semaphore, GLenum handleType, const void *name);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glImportSemaphoreWin32HandleEXT (GLuint semaphore, GLenum handleType, void *handle);
+GL_APICALL void GL_APIENTRY glImportSemaphoreWin32NameEXT (GLuint semaphore, GLenum handleType, const void *name);
+#endif
+#endif /* GL_EXT_semaphore_win32 */
+
 #ifndef GL_EXT_separate_shader_objects
 #define GL_EXT_separate_shader_objects 1
 #define GL_ACTIVE_PROGRAM_EXT             0x8259
@@ -1703,6 +1899,14 @@ GL_APICALL void GL_APIENTRY glProgramUniformMatrix4x3fvEXT (GLuint program, GLin
 #define GL_FRAGMENT_SHADER_DISCARDS_SAMPLES_EXT 0x8A52
 #endif /* GL_EXT_shader_framebuffer_fetch */
 
+#ifndef GL_EXT_shader_framebuffer_fetch_non_coherent
+#define GL_EXT_shader_framebuffer_fetch_non_coherent 1
+typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERFETCHBARRIEREXTPROC) (void);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glFramebufferFetchBarrierEXT (void);
+#endif
+#endif /* GL_EXT_shader_framebuffer_fetch_non_coherent */
+
 #ifndef GL_EXT_shader_group_vote
 #define GL_EXT_shader_group_vote 1
 #endif /* GL_EXT_shader_group_vote */
@@ -1890,18 +2094,42 @@ GL_APICALL void GL_APIENTRY glTexBufferRangeEXT (GLenum target, GLenum internalf
 #define GL_TEXTURE_ASTC_DECODE_PRECISION_EXT 0x8F69
 #endif /* GL_EXT_texture_compression_astc_decode_mode */
 
+#ifndef GL_EXT_texture_compression_bptc
+#define GL_EXT_texture_compression_bptc 1
+#define GL_COMPRESSED_RGBA_BPTC_UNORM_EXT 0x8E8C
+#define GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT 0x8E8D
+#define GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT 0x8E8E
+#define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT 0x8E8F
+#endif /* GL_EXT_texture_compression_bptc */
+
 #ifndef GL_EXT_texture_compression_dxt1
 #define GL_EXT_texture_compression_dxt1 1
 #define GL_COMPRESSED_RGB_S3TC_DXT1_EXT   0x83F0
 #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT  0x83F1
 #endif /* GL_EXT_texture_compression_dxt1 */
 
+#ifndef GL_EXT_texture_compression_rgtc
+#define GL_EXT_texture_compression_rgtc 1
+#define GL_COMPRESSED_RED_RGTC1_EXT       0x8DBB
+#define GL_COMPRESSED_SIGNED_RED_RGTC1_EXT 0x8DBC
+#define GL_COMPRESSED_RED_GREEN_RGTC2_EXT 0x8DBD
+#define GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT 0x8DBE
+#endif /* GL_EXT_texture_compression_rgtc */
+
 #ifndef GL_EXT_texture_compression_s3tc
 #define GL_EXT_texture_compression_s3tc 1
 #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT  0x83F2
 #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT  0x83F3
 #endif /* GL_EXT_texture_compression_s3tc */
 
+#ifndef GL_EXT_texture_compression_s3tc_srgb
+#define GL_EXT_texture_compression_s3tc_srgb 1
+#define GL_COMPRESSED_SRGB_S3TC_DXT1_EXT  0x8C4C
+#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
+#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E
+#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
+#endif /* GL_EXT_texture_compression_s3tc_srgb */
+
 #ifndef GL_EXT_texture_cube_map_array
 #define GL_EXT_texture_cube_map_array 1
 #define GL_TEXTURE_CUBE_MAP_ARRAY_EXT     0x9009
@@ -1923,12 +2151,24 @@ GL_APICALL void GL_APIENTRY glTexBufferRangeEXT (GLenum target, GLenum internalf
 
 #ifndef GL_EXT_texture_filter_minmax
 #define GL_EXT_texture_filter_minmax 1
+#define GL_TEXTURE_REDUCTION_MODE_EXT     0x9366
+#define GL_WEIGHTED_AVERAGE_EXT           0x9367
 #endif /* GL_EXT_texture_filter_minmax */
 
 #ifndef GL_EXT_texture_format_BGRA8888
 #define GL_EXT_texture_format_BGRA8888 1
 #endif /* GL_EXT_texture_format_BGRA8888 */
 
+#ifndef GL_EXT_texture_format_sRGB_override
+#define GL_EXT_texture_format_sRGB_override 1
+#define GL_TEXTURE_FORMAT_SRGB_OVERRIDE_EXT 0x8FBF
+#endif /* GL_EXT_texture_format_sRGB_override */
+
+#ifndef GL_EXT_texture_mirror_clamp_to_edge
+#define GL_EXT_texture_mirror_clamp_to_edge 1
+#define GL_MIRROR_CLAMP_TO_EDGE_EXT       0x8743
+#endif /* GL_EXT_texture_mirror_clamp_to_edge */
+
 #ifndef GL_EXT_texture_norm16
 #define GL_EXT_texture_norm16 1
 #define GL_R16_EXT                        0x822A
@@ -1938,6 +2178,10 @@ GL_APICALL void GL_APIENTRY glTexBufferRangeEXT (GLenum target, GLenum internalf
 #define GL_RGB16_SNORM_EXT                0x8F9A
 #endif /* GL_EXT_texture_norm16 */
 
+#ifndef GL_EXT_texture_query_lod
+#define GL_EXT_texture_query_lod 1
+#endif /* GL_EXT_texture_query_lod */
+
 #ifndef GL_EXT_texture_rg
 #define GL_EXT_texture_rg 1
 #define GL_RED_EXT                        0x1903
@@ -2019,6 +2263,16 @@ GL_APICALL void GL_APIENTRY glTextureViewEXT (GLuint texture, GLenum target, GLu
 #define GL_UNPACK_SKIP_PIXELS_EXT         0x0CF4
 #endif /* GL_EXT_unpack_subimage */
 
+#ifndef GL_EXT_win32_keyed_mutex
+#define GL_EXT_win32_keyed_mutex 1
+typedef GLboolean (GL_APIENTRYP PFNGLACQUIREKEYEDMUTEXWIN32EXTPROC) (GLuint memory, GLuint64 key, GLuint timeout);
+typedef GLboolean (GL_APIENTRYP PFNGLRELEASEKEYEDMUTEXWIN32EXTPROC) (GLuint memory, GLuint64 key);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL GLboolean GL_APIENTRY glAcquireKeyedMutexWin32EXT (GLuint memory, GLuint64 key, GLuint timeout);
+GL_APICALL GLboolean GL_APIENTRY glReleaseKeyedMutexWin32EXT (GLuint memory, GLuint64 key);
+#endif
+#endif /* GL_EXT_win32_keyed_mutex */
+
 #ifndef GL_EXT_window_rectangles
 #define GL_EXT_window_rectangles 1
 #define GL_INCLUSIVE_EXT                  0x8F10
@@ -2121,6 +2375,11 @@ GL_APICALL void GL_APIENTRY glFramebufferTexture2DMultisampleIMG (GLenum target,
 #define GL_CUBIC_MIPMAP_LINEAR_IMG        0x913B
 #endif /* GL_IMG_texture_filter_cubic */
 
+#ifndef GL_INTEL_blackhole_render
+#define GL_INTEL_blackhole_render 1
+#define GL_BLACKHOLE_RENDER_INTEL         0x83FC
+#endif /* GL_INTEL_blackhole_render */
+
 #ifndef GL_INTEL_conservative_rasterization
 #define GL_INTEL_conservative_rasterization 1
 #define GL_CONSERVATIVE_RASTERIZATION_INTEL 0x83FE
@@ -2163,7 +2422,7 @@ typedef void (GL_APIENTRYP PFNGLENDPERFQUERYINTELPROC) (GLuint queryHandle);
 typedef void (GL_APIENTRYP PFNGLGETFIRSTPERFQUERYIDINTELPROC) (GLuint *queryId);
 typedef void (GL_APIENTRYP PFNGLGETNEXTPERFQUERYIDINTELPROC) (GLuint queryId, GLuint *nextQueryId);
 typedef void (GL_APIENTRYP PFNGLGETPERFCOUNTERINFOINTELPROC) (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
-typedef void (GL_APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten);
+typedef void (GL_APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten);
 typedef void (GL_APIENTRYP PFNGLGETPERFQUERYIDBYNAMEINTELPROC) (GLchar *queryName, GLuint *queryId);
 typedef void (GL_APIENTRYP PFNGLGETPERFQUERYINFOINTELPROC) (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask);
 #ifdef GL_GLEXT_PROTOTYPES
@@ -2174,12 +2433,22 @@ GL_APICALL void GL_APIENTRY glEndPerfQueryINTEL (GLuint queryHandle);
 GL_APICALL void GL_APIENTRY glGetFirstPerfQueryIdINTEL (GLuint *queryId);
 GL_APICALL void GL_APIENTRY glGetNextPerfQueryIdINTEL (GLuint queryId, GLuint *nextQueryId);
 GL_APICALL void GL_APIENTRY glGetPerfCounterInfoINTEL (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
-GL_APICALL void GL_APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten);
+GL_APICALL void GL_APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten);
 GL_APICALL void GL_APIENTRY glGetPerfQueryIdByNameINTEL (GLchar *queryName, GLuint *queryId);
 GL_APICALL void GL_APIENTRY glGetPerfQueryInfoINTEL (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask);
 #endif
 #endif /* GL_INTEL_performance_query */
 
+#ifndef GL_MESA_framebuffer_flip_y
+#define GL_MESA_framebuffer_flip_y 1
+#define GL_FRAMEBUFFER_FLIP_Y_MESA        0x8BBB
+#endif /* GL_MESA_framebuffer_flip_y */
+
+#ifndef GL_MESA_program_binary_formats
+#define GL_MESA_program_binary_formats 1
+#define GL_PROGRAM_BINARY_FORMAT_MESA     0x875F
+#endif /* GL_MESA_program_binary_formats */
+
 #ifndef GL_MESA_shader_integer_functions
 #define GL_MESA_shader_integer_functions 1
 #endif /* GL_MESA_shader_integer_functions */
@@ -2284,6 +2553,27 @@ GL_APICALL void GL_APIENTRY glBlendBarrierNV (void);
 #define GL_BLEND_ADVANCED_COHERENT_NV     0x9285
 #endif /* GL_NV_blend_equation_advanced_coherent */
 
+#ifndef GL_NV_blend_minmax_factor
+#define GL_NV_blend_minmax_factor 1
+#define GL_FACTOR_MIN_AMD                 0x901C
+#define GL_FACTOR_MAX_AMD                 0x901D
+#endif /* GL_NV_blend_minmax_factor */
+
+#ifndef GL_NV_clip_space_w_scaling
+#define GL_NV_clip_space_w_scaling 1
+#define GL_VIEWPORT_POSITION_W_SCALE_NV   0x937C
+#define GL_VIEWPORT_POSITION_W_SCALE_X_COEFF_NV 0x937D
+#define GL_VIEWPORT_POSITION_W_SCALE_Y_COEFF_NV 0x937E
+typedef void (GL_APIENTRYP PFNGLVIEWPORTPOSITIONWSCALENVPROC) (GLuint index, GLfloat xcoeff, GLfloat ycoeff);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glViewportPositionWScaleNV (GLuint index, GLfloat xcoeff, GLfloat ycoeff);
+#endif
+#endif /* GL_NV_clip_space_w_scaling */
+
+#ifndef GL_NV_compute_shader_derivatives
+#define GL_NV_compute_shader_derivatives 1
+#endif /* GL_NV_compute_shader_derivatives */
+
 #ifndef GL_NV_conditional_render
 #define GL_NV_conditional_render 1
 #define GL_QUERY_WAIT_NV                  0x8E13
@@ -2310,6 +2600,11 @@ GL_APICALL void GL_APIENTRY glSubpixelPrecisionBiasNV (GLuint xbits, GLuint ybit
 #endif
 #endif /* GL_NV_conservative_raster */
 
+#ifndef GL_NV_conservative_raster_pre_snap
+#define GL_NV_conservative_raster_pre_snap 1
+#define GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_NV 0x9550
+#endif /* GL_NV_conservative_raster_pre_snap */
+
 #ifndef GL_NV_conservative_raster_pre_snap_triangles
 #define GL_NV_conservative_raster_pre_snap_triangles 1
 #define GL_CONSERVATIVE_RASTER_MODE_NV    0x954D
@@ -2655,6 +2950,34 @@ GL_APICALL void GL_APIENTRY glGetInternalformatSampleivNV (GLenum target, GLenum
 #endif
 #endif /* GL_NV_internalformat_sample_query */
 
+#ifndef GL_NV_memory_attachment
+#define GL_NV_memory_attachment 1
+#define GL_ATTACHED_MEMORY_OBJECT_NV      0x95A4
+#define GL_ATTACHED_MEMORY_OFFSET_NV      0x95A5
+#define GL_MEMORY_ATTACHABLE_ALIGNMENT_NV 0x95A6
+#define GL_MEMORY_ATTACHABLE_SIZE_NV      0x95A7
+#define GL_MEMORY_ATTACHABLE_NV           0x95A8
+#define GL_DETACHED_MEMORY_INCARNATION_NV 0x95A9
+#define GL_DETACHED_TEXTURES_NV           0x95AA
+#define GL_DETACHED_BUFFERS_NV            0x95AB
+#define GL_MAX_DETACHED_TEXTURES_NV       0x95AC
+#define GL_MAX_DETACHED_BUFFERS_NV        0x95AD
+typedef void (GL_APIENTRYP PFNGLGETMEMORYOBJECTDETACHEDRESOURCESUIVNVPROC) (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params);
+typedef void (GL_APIENTRYP PFNGLRESETMEMORYOBJECTPARAMETERNVPROC) (GLuint memory, GLenum pname);
+typedef void (GL_APIENTRYP PFNGLTEXATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLBUFFERATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLTEXTUREATTACHMEMORYNVPROC) (GLuint texture, GLuint memory, GLuint64 offset);
+typedef void (GL_APIENTRYP PFNGLNAMEDBUFFERATTACHMEMORYNVPROC) (GLuint buffer, GLuint memory, GLuint64 offset);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glGetMemoryObjectDetachedResourcesuivNV (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params);
+GL_APICALL void GL_APIENTRY glResetMemoryObjectParameterNV (GLuint memory, GLenum pname);
+GL_APICALL void GL_APIENTRY glTexAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glBufferAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glTextureAttachMemoryNV (GLuint texture, GLuint memory, GLuint64 offset);
+GL_APICALL void GL_APIENTRY glNamedBufferAttachMemoryNV (GLuint buffer, GLuint memory, GLuint64 offset);
+#endif
+#endif /* GL_NV_memory_attachment */
+
 #ifndef GL_NV_non_square_matrices
 #define GL_NV_non_square_matrices 1
 #define GL_FLOAT_MAT2x3_NV                0x8B65
@@ -2681,6 +3004,7 @@ GL_APICALL void GL_APIENTRY glUniformMatrix4x3fvNV (GLint location, GLsizei coun
 
 #ifndef GL_NV_path_rendering
 #define GL_NV_path_rendering 1
+typedef double GLdouble;
 #define GL_PATH_FORMAT_SVG_NV             0x9070
 #define GL_PATH_FORMAT_PS_NV              0x9071
 #define GL_STANDARD_FONT_NAME_NV          0x9072
@@ -2891,6 +3215,25 @@ typedef GLenum (GL_APIENTRYP PFNGLPATHGLYPHINDEXARRAYNVPROC) (GLuint firstPathNa
 typedef GLenum (GL_APIENTRYP PFNGLPATHMEMORYGLYPHINDEXARRAYNVPROC) (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale);
 typedef void (GL_APIENTRYP PFNGLPROGRAMPATHFRAGMENTINPUTGENNVPROC) (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs);
 typedef void (GL_APIENTRYP PFNGLGETPROGRAMRESOURCEFVNVPROC) (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei bufSize, GLsizei *length, GLfloat *params);
+typedef void (GL_APIENTRYP PFNGLMATRIXFRUSTUMEXTPROC) (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+typedef void (GL_APIENTRYP PFNGLMATRIXLOADIDENTITYEXTPROC) (GLenum mode);
+typedef void (GL_APIENTRYP PFNGLMATRIXLOADTRANSPOSEFEXTPROC) (GLenum mode, const GLfloat *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXLOADTRANSPOSEDEXTPROC) (GLenum mode, const GLdouble *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXLOADFEXTPROC) (GLenum mode, const GLfloat *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXLOADDEXTPROC) (GLenum mode, const GLdouble *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXMULTTRANSPOSEFEXTPROC) (GLenum mode, const GLfloat *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXMULTTRANSPOSEDEXTPROC) (GLenum mode, const GLdouble *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXMULTFEXTPROC) (GLenum mode, const GLfloat *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXMULTDEXTPROC) (GLenum mode, const GLdouble *m);
+typedef void (GL_APIENTRYP PFNGLMATRIXORTHOEXTPROC) (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+typedef void (GL_APIENTRYP PFNGLMATRIXPOPEXTPROC) (GLenum mode);
+typedef void (GL_APIENTRYP PFNGLMATRIXPUSHEXTPROC) (GLenum mode);
+typedef void (GL_APIENTRYP PFNGLMATRIXROTATEFEXTPROC) (GLenum mode, GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
+typedef void (GL_APIENTRYP PFNGLMATRIXROTATEDEXTPROC) (GLenum mode, GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
+typedef void (GL_APIENTRYP PFNGLMATRIXSCALEFEXTPROC) (GLenum mode, GLfloat x, GLfloat y, GLfloat z);
+typedef void (GL_APIENTRYP PFNGLMATRIXSCALEDEXTPROC) (GLenum mode, GLdouble x, GLdouble y, GLdouble z);
+typedef void (GL_APIENTRYP PFNGLMATRIXTRANSLATEFEXTPROC) (GLenum mode, GLfloat x, GLfloat y, GLfloat z);
+typedef void (GL_APIENTRYP PFNGLMATRIXTRANSLATEDEXTPROC) (GLenum mode, GLdouble x, GLdouble y, GLdouble z);
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL GLuint GL_APIENTRY glGenPathsNV (GLsizei range);
 GL_APICALL void GL_APIENTRY glDeletePathsNV (GLuint path, GLsizei range);
@@ -2949,6 +3292,25 @@ GL_APICALL GLenum GL_APIENTRY glPathGlyphIndexArrayNV (GLuint firstPathName, GLe
 GL_APICALL GLenum GL_APIENTRY glPathMemoryGlyphIndexArrayNV (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale);
 GL_APICALL void GL_APIENTRY glProgramPathFragmentInputGenNV (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs);
 GL_APICALL void GL_APIENTRY glGetProgramResourcefvNV (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei bufSize, GLsizei *length, GLfloat *params);
+GL_APICALL void GL_APIENTRY glMatrixFrustumEXT (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+GL_APICALL void GL_APIENTRY glMatrixLoadIdentityEXT (GLenum mode);
+GL_APICALL void GL_APIENTRY glMatrixLoadTransposefEXT (GLenum mode, const GLfloat *m);
+GL_APICALL void GL_APIENTRY glMatrixLoadTransposedEXT (GLenum mode, const GLdouble *m);
+GL_APICALL void GL_APIENTRY glMatrixLoadfEXT (GLenum mode, const GLfloat *m);
+GL_APICALL void GL_APIENTRY glMatrixLoaddEXT (GLenum mode, const GLdouble *m);
+GL_APICALL void GL_APIENTRY glMatrixMultTransposefEXT (GLenum mode, const GLfloat *m);
+GL_APICALL void GL_APIENTRY glMatrixMultTransposedEXT (GLenum mode, const GLdouble *m);
+GL_APICALL void GL_APIENTRY glMatrixMultfEXT (GLenum mode, const GLfloat *m);
+GL_APICALL void GL_APIENTRY glMatrixMultdEXT (GLenum mode, const GLdouble *m);
+GL_APICALL void GL_APIENTRY glMatrixOrthoEXT (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+GL_APICALL void GL_APIENTRY glMatrixPopEXT (GLenum mode);
+GL_APICALL void GL_APIENTRY glMatrixPushEXT (GLenum mode);
+GL_APICALL void GL_APIENTRY glMatrixRotatefEXT (GLenum mode, GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
+GL_APICALL void GL_APIENTRY glMatrixRotatedEXT (GLenum mode, GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
+GL_APICALL void GL_APIENTRY glMatrixScalefEXT (GLenum mode, GLfloat x, GLfloat y, GLfloat z);
+GL_APICALL void GL_APIENTRY glMatrixScaledEXT (GLenum mode, GLdouble x, GLdouble y, GLdouble z);
+GL_APICALL void GL_APIENTRY glMatrixTranslatefEXT (GLenum mode, GLfloat x, GLfloat y, GLfloat z);
+GL_APICALL void GL_APIENTRY glMatrixTranslatedEXT (GLenum mode, GLdouble x, GLdouble y, GLdouble z);
 #endif
 #endif /* GL_NV_path_rendering */
 
@@ -2957,6 +3319,14 @@ GL_APICALL void GL_APIENTRY glGetProgramResourcefvNV (GLuint program, GLenum pro
 #define GL_SHARED_EDGE_NV                 0xC0
 #endif /* GL_NV_path_rendering_shared_edge */
 
+#ifndef GL_NV_pixel_buffer_object
+#define GL_NV_pixel_buffer_object 1
+#define GL_PIXEL_PACK_BUFFER_NV           0x88EB
+#define GL_PIXEL_UNPACK_BUFFER_NV         0x88EC
+#define GL_PIXEL_PACK_BUFFER_BINDING_NV   0x88ED
+#define GL_PIXEL_UNPACK_BUFFER_BINDING_NV 0x88EF
+#endif /* GL_NV_pixel_buffer_object */
+
 #ifndef GL_NV_polygon_mode
 #define GL_NV_polygon_mode 1
 #define GL_POLYGON_MODE_NV                0x0B40
@@ -3034,6 +3404,18 @@ GL_APICALL void GL_APIENTRY glResolveDepthValuesNV (void);
 #define GL_NV_sample_mask_override_coverage 1
 #endif /* GL_NV_sample_mask_override_coverage */
 
+#ifndef GL_NV_scissor_exclusive
+#define GL_NV_scissor_exclusive 1
+#define GL_SCISSOR_TEST_EXCLUSIVE_NV      0x9555
+#define GL_SCISSOR_BOX_EXCLUSIVE_NV       0x9556
+typedef void (GL_APIENTRYP PFNGLSCISSOREXCLUSIVENVPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+typedef void (GL_APIENTRYP PFNGLSCISSOREXCLUSIVEARRAYVNVPROC) (GLuint first, GLsizei count, const GLint *v);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glScissorExclusiveNV (GLint x, GLint y, GLsizei width, GLsizei height);
+GL_APICALL void GL_APIENTRY glScissorExclusiveArrayvNV (GLuint first, GLsizei count, const GLint *v);
+#endif
+#endif /* GL_NV_scissor_exclusive */
+
 #ifndef GL_NV_shader_atomic_fp16_vector
 #define GL_NV_shader_atomic_fp16_vector 1
 #endif /* GL_NV_shader_atomic_fp16_vector */
@@ -3052,6 +3434,10 @@ GL_APICALL void GL_APIENTRY glResolveDepthValuesNV (void);
 #define GL_SAMPLER_CUBE_SHADOW_NV         0x8DC5
 #endif /* GL_NV_shadow_samplers_cube */
 
+#ifndef GL_NV_stereo_view_rendering
+#define GL_NV_stereo_view_rendering 1
+#endif /* GL_NV_stereo_view_rendering */
+
 #ifndef GL_NV_texture_border_clamp
 #define GL_NV_texture_border_clamp 1
 #define GL_TEXTURE_BORDER_COLOR_NV        0x1004
@@ -3148,6 +3534,10 @@ GL_APICALL void GL_APIENTRY glFramebufferTextureMultisampleMultiviewOVR (GLenum
 #endif
 #endif /* GL_OVR_multiview_multisampled_render_to_texture */
 
+#ifndef GL_QCOM_YUV_texture_gather
+#define GL_QCOM_YUV_texture_gather 1
+#endif /* GL_QCOM_YUV_texture_gather */
+
 #ifndef GL_QCOM_alpha_test
 #define GL_QCOM_alpha_test 1
 #define GL_ALPHA_TEST_QCOM                0x0BC0
@@ -3245,6 +3635,38 @@ GL_APICALL void GL_APIENTRY glFramebufferFoveationParametersQCOM (GLuint framebu
 #define GL_PERFMON_GLOBAL_MODE_QCOM       0x8FA0
 #endif /* GL_QCOM_perfmon_global_mode */
 
+#ifndef GL_QCOM_shader_framebuffer_fetch_noncoherent
+#define GL_QCOM_shader_framebuffer_fetch_noncoherent 1
+#define GL_FRAMEBUFFER_FETCH_NONCOHERENT_QCOM 0x96A2
+typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERFETCHBARRIERQCOMPROC) (void);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glFramebufferFetchBarrierQCOM (void);
+#endif
+#endif /* GL_QCOM_shader_framebuffer_fetch_noncoherent */
+
+#ifndef GL_QCOM_shader_framebuffer_fetch_rate
+#define GL_QCOM_shader_framebuffer_fetch_rate 1
+#endif /* GL_QCOM_shader_framebuffer_fetch_rate */
+
+#ifndef GL_QCOM_texture_foveated
+#define GL_QCOM_texture_foveated 1
+#define GL_TEXTURE_FOVEATED_FEATURE_BITS_QCOM 0x8BFB
+#define GL_TEXTURE_FOVEATED_MIN_PIXEL_DENSITY_QCOM 0x8BFC
+#define GL_TEXTURE_FOVEATED_FEATURE_QUERY_QCOM 0x8BFD
+#define GL_TEXTURE_FOVEATED_NUM_FOCAL_POINTS_QUERY_QCOM 0x8BFE
+#define GL_FRAMEBUFFER_INCOMPLETE_FOVEATION_QCOM 0x8BFF
+typedef void (GL_APIENTRYP PFNGLTEXTUREFOVEATIONPARAMETERSQCOMPROC) (GLuint texture, GLuint layer, GLuint focalPoint, GLfloat focalX, GLfloat focalY, GLfloat gainX, GLfloat gainY, GLfloat foveaArea);
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glTextureFoveationParametersQCOM (GLuint texture, GLuint layer, GLuint focalPoint, GLfloat focalX, GLfloat focalY, GLfloat gainX, GLfloat gainY, GLfloat foveaArea);
+#endif
+#endif /* GL_QCOM_texture_foveated */
+
+#ifndef GL_QCOM_texture_foveated_subsampled_layout
+#define GL_QCOM_texture_foveated_subsampled_layout 1
+#define GL_FOVEATION_SUBSAMPLED_LAYOUT_METHOD_BIT_QCOM 0x00000004
+#define GL_MAX_SHADER_SUBSAMPLED_IMAGE_UNITS_QCOM 0x8FA1
+#endif /* GL_QCOM_texture_foveated_subsampled_layout */
+
 #ifndef GL_QCOM_tiled_rendering
 #define GL_QCOM_tiled_rendering 1
 #define GL_COLOR_BUFFER_BIT0_QCOM         0x00000001
diff --git a/src/gui/opengl/qopenglext.h b/src/gui/opengl/qopenglext.h
index 63873476e4..e3f9205619 100644
--- a/src/gui/opengl/qopenglext.h
+++ b/src/gui/opengl/qopenglext.h
@@ -12,7 +12,7 @@ extern "C" {
 #endif
 
 /*
-** Copyright (c) 2013-2017 The Khronos Group Inc.
+** Copyright (c) 2013-2018 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
@@ -57,7 +57,7 @@ extern "C" {
 #define GLAPI extern
 #endif
 
-#define GL_GLEXT_VERSION 20170325
+#define GL_GLEXT_VERSION 20190228
 
 /* Generated C header for:
  * API: gl
@@ -359,15 +359,17 @@ GLAPI void APIENTRY glMultTransposeMatrixd (const GLdouble *m);
 #define GL_TEXTURE_FILTER_CONTROL         0x8500
 #define GL_DEPTH_TEXTURE_MODE             0x884B
 #define GL_COMPARE_R_TO_TEXTURE           0x884E
-#define GL_FUNC_ADD                       0x8006
-#define GL_FUNC_SUBTRACT                  0x800A
-#define GL_FUNC_REVERSE_SUBTRACT          0x800B
-#define GL_MIN                            0x8007
-#define GL_MAX                            0x8008
+#define GL_BLEND_COLOR                    0x8005
+#define GL_BLEND_EQUATION                 0x8009
 #define GL_CONSTANT_COLOR                 0x8001
 #define GL_ONE_MINUS_CONSTANT_COLOR       0x8002
 #define GL_CONSTANT_ALPHA                 0x8003
 #define GL_ONE_MINUS_CONSTANT_ALPHA       0x8004
+#define GL_FUNC_ADD                       0x8006
+#define GL_FUNC_REVERSE_SUBTRACT          0x800B
+#define GL_FUNC_SUBTRACT                  0x800A
+#define GL_MIN                            0x8007
+#define GL_MAX                            0x8008
 typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
 typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSPROC) (GLenum mode, const GLint *first, const GLsizei *count, GLsizei drawcount);
 typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount);
@@ -2872,6 +2874,42 @@ GLAPI void APIENTRY glTextureBarrier (void);
 #endif
 #endif /* GL_VERSION_4_5 */
 
+#ifndef GL_VERSION_4_6
+#define GL_VERSION_4_6 1
+#define GL_SHADER_BINARY_FORMAT_SPIR_V    0x9551
+#define GL_SPIR_V_BINARY                  0x9552
+#define GL_PARAMETER_BUFFER               0x80EE
+#define GL_PARAMETER_BUFFER_BINDING       0x80EF
+#define GL_CONTEXT_FLAG_NO_ERROR_BIT      0x00000008
+#define GL_VERTICES_SUBMITTED             0x82EE
+#define GL_PRIMITIVES_SUBMITTED           0x82EF
+#define GL_VERTEX_SHADER_INVOCATIONS      0x82F0
+#define GL_TESS_CONTROL_SHADER_PATCHES    0x82F1
+#define GL_TESS_EVALUATION_SHADER_INVOCATIONS 0x82F2
+#define GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED 0x82F3
+#define GL_FRAGMENT_SHADER_INVOCATIONS    0x82F4
+#define GL_COMPUTE_SHADER_INVOCATIONS     0x82F5
+#define GL_CLIPPING_INPUT_PRIMITIVES      0x82F6
+#define GL_CLIPPING_OUTPUT_PRIMITIVES     0x82F7
+#define GL_POLYGON_OFFSET_CLAMP           0x8E1B
+#define GL_SPIR_V_EXTENSIONS              0x9553
+#define GL_NUM_SPIR_V_EXTENSIONS          0x9554
+#define GL_TEXTURE_MAX_ANISOTROPY         0x84FE
+#define GL_MAX_TEXTURE_MAX_ANISOTROPY     0x84FF
+#define GL_TRANSFORM_FEEDBACK_OVERFLOW    0x82EC
+#define GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW 0x82ED
+typedef void (APIENTRYP PFNGLSPECIALIZESHADERPROC) (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue);
+typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC) (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC) (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPPROC) (GLfloat factor, GLfloat units, GLfloat clamp);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glSpecializeShader (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue);
+GLAPI void APIENTRY glMultiDrawArraysIndirectCount (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI void APIENTRY glMultiDrawElementsIndirectCount (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI void APIENTRY glPolygonOffsetClamp (GLfloat factor, GLfloat units, GLfloat clamp);
+#endif
+#endif /* GL_VERSION_4_6 */
+
 #ifndef GL_ARB_ES2_compatibility
 #define GL_ARB_ES2_compatibility 1
 #endif /* GL_ARB_ES2_compatibility */
@@ -3475,8 +3513,6 @@ typedef unsigned short GLhalfARB;
 
 #ifndef GL_ARB_imaging
 #define GL_ARB_imaging 1
-#define GL_BLEND_COLOR                    0x8005
-#define GL_BLEND_EQUATION                 0x8009
 #define GL_CONVOLUTION_1D                 0x8010
 #define GL_CONVOLUTION_2D                 0x8011
 #define GL_SEPARABLE_2D                   0x8012
@@ -3613,11 +3649,11 @@ GLAPI void APIENTRY glResetMinmax (GLenum target);
 #define GL_ARB_indirect_parameters 1
 #define GL_PARAMETER_BUFFER_ARB           0x80EE
 #define GL_PARAMETER_BUFFER_BINDING_ARB   0x80EF
-typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTARBPROC) (GLenum mode, GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
-typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTARBPROC) (GLenum mode, GLenum type, GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTARBPROC) (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTARBPROC) (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
 #ifdef GL_GLEXT_PROTOTYPES
-GLAPI void APIENTRY glMultiDrawArraysIndirectCountARB (GLenum mode, GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
-GLAPI void APIENTRY glMultiDrawElementsIndirectCountARB (GLenum mode, GLenum type, GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI void APIENTRY glMultiDrawArraysIndirectCountARB (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI void APIENTRY glMultiDrawElementsIndirectCountARB (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
 #endif
 #endif /* GL_ARB_indirect_parameters */
 
@@ -3637,6 +3673,25 @@ GLAPI void APIENTRY glVertexAttribDivisorARB (GLuint index, GLuint divisor);
 #ifndef GL_ARB_internalformat_query2
 #define GL_ARB_internalformat_query2 1
 #define GL_SRGB_DECODE_ARB                0x8299
+#define GL_VIEW_CLASS_EAC_R11             0x9383
+#define GL_VIEW_CLASS_EAC_RG11            0x9384
+#define GL_VIEW_CLASS_ETC2_RGB            0x9385
+#define GL_VIEW_CLASS_ETC2_RGBA           0x9386
+#define GL_VIEW_CLASS_ETC2_EAC_RGBA       0x9387
+#define GL_VIEW_CLASS_ASTC_4x4_RGBA       0x9388
+#define GL_VIEW_CLASS_ASTC_5x4_RGBA       0x9389
+#define GL_VIEW_CLASS_ASTC_5x5_RGBA       0x938A
+#define GL_VIEW_CLASS_ASTC_6x5_RGBA       0x938B
+#define GL_VIEW_CLASS_ASTC_6x6_RGBA       0x938C
+#define GL_VIEW_CLASS_ASTC_8x5_RGBA       0x938D
+#define GL_VIEW_CLASS_ASTC_8x6_RGBA       0x938E
+#define GL_VIEW_CLASS_ASTC_8x8_RGBA       0x938F
+#define GL_VIEW_CLASS_ASTC_10x5_RGBA      0x9390
+#define GL_VIEW_CLASS_ASTC_10x6_RGBA      0x9391
+#define GL_VIEW_CLASS_ASTC_10x8_RGBA      0x9392
+#define GL_VIEW_CLASS_ASTC_10x10_RGBA     0x9393
+#define GL_VIEW_CLASS_ASTC_12x10_RGBA     0x9394
+#define GL_VIEW_CLASS_ASTC_12x12_RGBA     0x9395
 #endif /* GL_ARB_internalformat_query2 */
 
 #ifndef GL_ARB_invalidate_subdata
@@ -3894,6 +3949,10 @@ GLAPI void APIENTRY glPointParameterfvARB (GLenum pname, const GLfloat *params);
 #define GL_COORD_REPLACE_ARB              0x8862
 #endif /* GL_ARB_point_sprite */
 
+#ifndef GL_ARB_polygon_offset_clamp
+#define GL_ARB_polygon_offset_clamp 1
+#endif /* GL_ARB_polygon_offset_clamp */
+
 #ifndef GL_ARB_post_depth_coverage
 #define GL_ARB_post_depth_coverage 1
 #endif /* GL_ARB_post_depth_coverage */
@@ -4292,6 +4351,10 @@ GLAPI void APIENTRY glTexPageCommitmentARB (GLenum target, GLint level, GLint xo
 #define GL_ARB_sparse_texture_clamp 1
 #endif /* GL_ARB_sparse_texture_clamp */
 
+#ifndef GL_ARB_spirv_extensions
+#define GL_ARB_spirv_extensions 1
+#endif /* GL_ARB_spirv_extensions */
+
 #ifndef GL_ARB_stencil_texturing
 #define GL_ARB_stencil_texturing 1
 #endif /* GL_ARB_stencil_texturing */
@@ -4444,6 +4507,10 @@ GLAPI void APIENTRY glGetCompressedTexImageARB (GLenum target, GLint level, void
 #define GL_DOT3_RGBA_ARB                  0x86AF
 #endif /* GL_ARB_texture_env_dot3 */
 
+#ifndef GL_ARB_texture_filter_anisotropic
+#define GL_ARB_texture_filter_anisotropic 1
+#endif /* GL_ARB_texture_filter_anisotropic */
+
 #ifndef GL_ARB_texture_filter_minmax
 #define GL_ARB_texture_filter_minmax 1
 #define GL_TEXTURE_REDUCTION_MODE_ARB     0x9366
@@ -4949,6 +5016,16 @@ GLAPI void APIENTRY glBlendBarrierKHR (void);
 #define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR  0x00000008
 #endif /* GL_KHR_no_error */
 
+#ifndef GL_KHR_parallel_shader_compile
+#define GL_KHR_parallel_shader_compile 1
+#define GL_MAX_SHADER_COMPILER_THREADS_KHR 0x91B0
+#define GL_COMPLETION_STATUS_KHR          0x91B1
+typedef void (APIENTRYP PFNGLMAXSHADERCOMPILERTHREADSKHRPROC) (GLuint count);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glMaxShaderCompilerThreadsKHR (GLuint count);
+#endif
+#endif /* GL_KHR_parallel_shader_compile */
+
 #ifndef GL_KHR_robust_buffer_access_behavior
 #define GL_KHR_robust_buffer_access_behavior 1
 #endif /* GL_KHR_robust_buffer_access_behavior */
@@ -5389,6 +5466,22 @@ GLAPI void APIENTRY glBlendEquationSeparateIndexedAMD (GLuint buf, GLenum modeRG
 #endif
 #endif /* GL_AMD_draw_buffers_blend */
 
+#ifndef GL_AMD_framebuffer_multisample_advanced
+#define GL_AMD_framebuffer_multisample_advanced 1
+#define GL_RENDERBUFFER_STORAGE_SAMPLES_AMD 0x91B2
+#define GL_MAX_COLOR_FRAMEBUFFER_SAMPLES_AMD 0x91B3
+#define GL_MAX_COLOR_FRAMEBUFFER_STORAGE_SAMPLES_AMD 0x91B4
+#define GL_MAX_DEPTH_STENCIL_FRAMEBUFFER_SAMPLES_AMD 0x91B5
+#define GL_NUM_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B6
+#define GL_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B7
+typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glRenderbufferStorageMultisampleAdvancedAMD (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI void APIENTRY glNamedRenderbufferStorageMultisampleAdvancedAMD (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height);
+#endif
+#endif /* GL_AMD_framebuffer_multisample_advanced */
+
 #ifndef GL_AMD_framebuffer_sample_positions
 #define GL_AMD_framebuffer_sample_positions 1
 #define GL_SUBSAMPLE_DISTANCE_AMD         0x883F
@@ -5428,6 +5521,10 @@ GLAPI void APIENTRY glGetNamedFramebufferParameterfvAMD (GLuint framebuffer, GLe
 #define GL_FLOAT16_MAT4x3_AMD             0x91CD
 #endif /* GL_AMD_gpu_shader_half_float */
 
+#ifndef GL_AMD_gpu_shader_int16
+#define GL_AMD_gpu_shader_int16 1
+#endif /* GL_AMD_gpu_shader_int16 */
+
 #ifndef GL_AMD_gpu_shader_int64
 #define GL_AMD_gpu_shader_int64 1
 typedef int64_t GLint64EXT;
@@ -5649,6 +5746,14 @@ GLAPI void APIENTRY glSetMultisamplefvAMD (GLenum pname, GLuint index, const GLf
 #define GL_AMD_shader_explicit_vertex_parameter 1
 #endif /* GL_AMD_shader_explicit_vertex_parameter */
 
+#ifndef GL_AMD_shader_gpu_shader_half_float_fetch
+#define GL_AMD_shader_gpu_shader_half_float_fetch 1
+#endif /* GL_AMD_shader_gpu_shader_half_float_fetch */
+
+#ifndef GL_AMD_shader_image_load_store_lod
+#define GL_AMD_shader_image_load_store_lod 1
+#endif /* GL_AMD_shader_image_load_store_lod */
+
 #ifndef GL_AMD_shader_stencil_export
 #define GL_AMD_shader_stencil_export 1
 #endif /* GL_AMD_shader_stencil_export */
@@ -5688,6 +5793,10 @@ GLAPI void APIENTRY glStencilOpValueAMD (GLenum face, GLuint value);
 #endif
 #endif /* GL_AMD_stencil_operation_extended */
 
+#ifndef GL_AMD_texture_gather_bias_lod
+#define GL_AMD_texture_gather_bias_lod 1
+#endif /* GL_AMD_texture_gather_bias_lod */
+
 #ifndef GL_AMD_texture_texture4
 #define GL_AMD_texture_texture4 1
 #endif /* GL_AMD_texture_texture4 */
@@ -6388,6 +6497,17 @@ GLAPI void APIENTRY glVertexBlendEnvfATI (GLenum pname, GLfloat param);
 #define GL_422_REV_AVERAGE_EXT            0x80CF
 #endif /* GL_EXT_422_pixels */
 
+#ifndef GL_EXT_EGL_image_storage
+#define GL_EXT_EGL_image_storage 1
+typedef void *GLeglImageOES;
+typedef void (APIENTRYP PFNGLEGLIMAGETARGETTEXSTORAGEEXTPROC) (GLenum target, GLeglImageOES image, const GLint* attrib_list);
+typedef void (APIENTRYP PFNGLEGLIMAGETARGETTEXTURESTORAGEEXTPROC) (GLuint texture, GLeglImageOES image, const GLint* attrib_list);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glEGLImageTargetTexStorageEXT (GLenum target, GLeglImageOES image, const GLint* attrib_list);
+GLAPI void APIENTRY glEGLImageTargetTextureStorageEXT (GLuint texture, GLeglImageOES image, const GLint* attrib_list);
+#endif
+#endif /* GL_EXT_EGL_image_storage */
+
 #ifndef GL_EXT_abgr
 #define GL_EXT_abgr 1
 #define GL_ABGR_EXT                       0x8000
@@ -7239,6 +7359,17 @@ GLAPI void APIENTRY glDrawRangeElementsEXT (GLenum mode, GLuint start, GLuint en
 #endif
 #endif /* GL_EXT_draw_range_elements */
 
+#ifndef GL_EXT_external_buffer
+#define GL_EXT_external_buffer 1
+typedef void *GLeglClientBufferEXT;
+typedef void (APIENTRYP PFNGLBUFFERSTORAGEEXTERNALEXTPROC) (GLenum target, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEEXTERNALEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBufferStorageExternalEXT (GLenum target, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+GLAPI void APIENTRY glNamedBufferStorageExternalEXT (GLuint buffer, GLintptr offset, GLsizeiptr size, GLeglClientBufferEXT clientBuffer, GLbitfield flags);
+#endif
+#endif /* GL_EXT_external_buffer */
+
 #ifndef GL_EXT_fog_coord
 #define GL_EXT_fog_coord 1
 #define GL_FOG_COORDINATE_SOURCE_EXT      0x8450
@@ -7582,6 +7713,89 @@ GLAPI void APIENTRY glTextureMaterialEXT (GLenum face, GLenum mode);
 #endif
 #endif /* GL_EXT_light_texture */
 
+#ifndef GL_EXT_memory_object
+#define GL_EXT_memory_object 1
+#define GL_TEXTURE_TILING_EXT             0x9580
+#define GL_DEDICATED_MEMORY_OBJECT_EXT    0x9581
+#define GL_PROTECTED_MEMORY_OBJECT_EXT    0x959B
+#define GL_NUM_TILING_TYPES_EXT           0x9582
+#define GL_TILING_TYPES_EXT               0x9583
+#define GL_OPTIMAL_TILING_EXT             0x9584
+#define GL_LINEAR_TILING_EXT              0x9585
+#define GL_NUM_DEVICE_UUIDS_EXT           0x9596
+#define GL_DEVICE_UUID_EXT                0x9597
+#define GL_DRIVER_UUID_EXT                0x9598
+#define GL_UUID_SIZE_EXT                  16
+typedef void (APIENTRYP PFNGLGETUNSIGNEDBYTEVEXTPROC) (GLenum pname, GLubyte *data);
+typedef void (APIENTRYP PFNGLGETUNSIGNEDBYTEI_VEXTPROC) (GLenum target, GLuint index, GLubyte *data);
+typedef void (APIENTRYP PFNGLDELETEMEMORYOBJECTSEXTPROC) (GLsizei n, const GLuint *memoryObjects);
+typedef GLboolean (APIENTRYP PFNGLISMEMORYOBJECTEXTPROC) (GLuint memoryObject);
+typedef void (APIENTRYP PFNGLCREATEMEMORYOBJECTSEXTPROC) (GLsizei n, GLuint *memoryObjects);
+typedef void (APIENTRYP PFNGLMEMORYOBJECTPARAMETERIVEXTPROC) (GLuint memoryObject, GLenum pname, const GLint *params);
+typedef void (APIENTRYP PFNGLGETMEMORYOBJECTPARAMETERIVEXTPROC) (GLuint memoryObject, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLTEXSTORAGEMEM2DEXTPROC) (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXSTORAGEMEM2DMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXSTORAGEMEM3DEXTPROC) (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXSTORAGEMEM3DMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLBUFFERSTORAGEMEMEXTPROC) (GLenum target, GLsizeiptr size, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTURESTORAGEMEM2DEXTPROC) (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTURESTORAGEMEM2DMULTISAMPLEEXTPROC) (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTURESTORAGEMEM3DEXTPROC) (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTURESTORAGEMEM3DMULTISAMPLEEXTPROC) (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEMEMEXTPROC) (GLuint buffer, GLsizeiptr size, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXSTORAGEMEM1DEXTPROC) (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTURESTORAGEMEM1DEXTPROC) (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLuint memory, GLuint64 offset);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGetUnsignedBytevEXT (GLenum pname, GLubyte *data);
+GLAPI void APIENTRY glGetUnsignedBytei_vEXT (GLenum target, GLuint index, GLubyte *data);
+GLAPI void APIENTRY glDeleteMemoryObjectsEXT (GLsizei n, const GLuint *memoryObjects);
+GLAPI GLboolean APIENTRY glIsMemoryObjectEXT (GLuint memoryObject);
+GLAPI void APIENTRY glCreateMemoryObjectsEXT (GLsizei n, GLuint *memoryObjects);
+GLAPI void APIENTRY glMemoryObjectParameterivEXT (GLuint memoryObject, GLenum pname, const GLint *params);
+GLAPI void APIENTRY glGetMemoryObjectParameterivEXT (GLuint memoryObject, GLenum pname, GLint *params);
+GLAPI void APIENTRY glTexStorageMem2DEXT (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTexStorageMem2DMultisampleEXT (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTexStorageMem3DEXT (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTexStorageMem3DMultisampleEXT (GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glBufferStorageMemEXT (GLenum target, GLsizeiptr size, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureStorageMem2DEXT (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureStorageMem2DMultisampleEXT (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureStorageMem3DEXT (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureStorageMem3DMultisampleEXT (GLuint texture, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedSampleLocations, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glNamedBufferStorageMemEXT (GLuint buffer, GLsizeiptr size, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTexStorageMem1DEXT (GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureStorageMem1DEXT (GLuint texture, GLsizei levels, GLenum internalFormat, GLsizei width, GLuint memory, GLuint64 offset);
+#endif
+#endif /* GL_EXT_memory_object */
+
+#ifndef GL_EXT_memory_object_fd
+#define GL_EXT_memory_object_fd 1
+#define GL_HANDLE_TYPE_OPAQUE_FD_EXT      0x9586
+typedef void (APIENTRYP PFNGLIMPORTMEMORYFDEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, GLint fd);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glImportMemoryFdEXT (GLuint memory, GLuint64 size, GLenum handleType, GLint fd);
+#endif
+#endif /* GL_EXT_memory_object_fd */
+
+#ifndef GL_EXT_memory_object_win32
+#define GL_EXT_memory_object_win32 1
+#define GL_HANDLE_TYPE_OPAQUE_WIN32_EXT   0x9587
+#define GL_HANDLE_TYPE_OPAQUE_WIN32_KMT_EXT 0x9588
+#define GL_DEVICE_LUID_EXT                0x9599
+#define GL_DEVICE_NODE_MASK_EXT           0x959A
+#define GL_LUID_SIZE_EXT                  8
+#define GL_HANDLE_TYPE_D3D12_TILEPOOL_EXT 0x9589
+#define GL_HANDLE_TYPE_D3D12_RESOURCE_EXT 0x958A
+#define GL_HANDLE_TYPE_D3D11_IMAGE_EXT    0x958B
+#define GL_HANDLE_TYPE_D3D11_IMAGE_KMT_EXT 0x958C
+typedef void (APIENTRYP PFNGLIMPORTMEMORYWIN32HANDLEEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, void *handle);
+typedef void (APIENTRYP PFNGLIMPORTMEMORYWIN32NAMEEXTPROC) (GLuint memory, GLuint64 size, GLenum handleType, const void *name);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glImportMemoryWin32HandleEXT (GLuint memory, GLuint64 size, GLenum handleType, void *handle);
+GLAPI void APIENTRY glImportMemoryWin32NameEXT (GLuint memory, GLuint64 size, GLenum handleType, const void *name);
+#endif
+#endif /* GL_EXT_memory_object_win32 */
+
 #ifndef GL_EXT_misc_attribute
 #define GL_EXT_misc_attribute 1
 #endif /* GL_EXT_misc_attribute */
@@ -7823,6 +8037,55 @@ GLAPI void APIENTRY glSecondaryColorPointerEXT (GLint size, GLenum type, GLsizei
 #endif
 #endif /* GL_EXT_secondary_color */
 
+#ifndef GL_EXT_semaphore
+#define GL_EXT_semaphore 1
+#define GL_LAYOUT_GENERAL_EXT             0x958D
+#define GL_LAYOUT_COLOR_ATTACHMENT_EXT    0x958E
+#define GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT 0x958F
+#define GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT 0x9590
+#define GL_LAYOUT_SHADER_READ_ONLY_EXT    0x9591
+#define GL_LAYOUT_TRANSFER_SRC_EXT        0x9592
+#define GL_LAYOUT_TRANSFER_DST_EXT        0x9593
+#define GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT 0x9530
+#define GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT 0x9531
+typedef void (APIENTRYP PFNGLGENSEMAPHORESEXTPROC) (GLsizei n, GLuint *semaphores);
+typedef void (APIENTRYP PFNGLDELETESEMAPHORESEXTPROC) (GLsizei n, const GLuint *semaphores);
+typedef GLboolean (APIENTRYP PFNGLISSEMAPHOREEXTPROC) (GLuint semaphore);
+typedef void (APIENTRYP PFNGLSEMAPHOREPARAMETERUI64VEXTPROC) (GLuint semaphore, GLenum pname, const GLuint64 *params);
+typedef void (APIENTRYP PFNGLGETSEMAPHOREPARAMETERUI64VEXTPROC) (GLuint semaphore, GLenum pname, GLuint64 *params);
+typedef void (APIENTRYP PFNGLWAITSEMAPHOREEXTPROC) (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *srcLayouts);
+typedef void (APIENTRYP PFNGLSIGNALSEMAPHOREEXTPROC) (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *dstLayouts);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGenSemaphoresEXT (GLsizei n, GLuint *semaphores);
+GLAPI void APIENTRY glDeleteSemaphoresEXT (GLsizei n, const GLuint *semaphores);
+GLAPI GLboolean APIENTRY glIsSemaphoreEXT (GLuint semaphore);
+GLAPI void APIENTRY glSemaphoreParameterui64vEXT (GLuint semaphore, GLenum pname, const GLuint64 *params);
+GLAPI void APIENTRY glGetSemaphoreParameterui64vEXT (GLuint semaphore, GLenum pname, GLuint64 *params);
+GLAPI void APIENTRY glWaitSemaphoreEXT (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *srcLayouts);
+GLAPI void APIENTRY glSignalSemaphoreEXT (GLuint semaphore, GLuint numBufferBarriers, const GLuint *buffers, GLuint numTextureBarriers, const GLuint *textures, const GLenum *dstLayouts);
+#endif
+#endif /* GL_EXT_semaphore */
+
+#ifndef GL_EXT_semaphore_fd
+#define GL_EXT_semaphore_fd 1
+typedef void (APIENTRYP PFNGLIMPORTSEMAPHOREFDEXTPROC) (GLuint semaphore, GLenum handleType, GLint fd);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glImportSemaphoreFdEXT (GLuint semaphore, GLenum handleType, GLint fd);
+#endif
+#endif /* GL_EXT_semaphore_fd */
+
+#ifndef GL_EXT_semaphore_win32
+#define GL_EXT_semaphore_win32 1
+#define GL_HANDLE_TYPE_D3D12_FENCE_EXT    0x9594
+#define GL_D3D12_FENCE_VALUE_EXT          0x9595
+typedef void (APIENTRYP PFNGLIMPORTSEMAPHOREWIN32HANDLEEXTPROC) (GLuint semaphore, GLenum handleType, void *handle);
+typedef void (APIENTRYP PFNGLIMPORTSEMAPHOREWIN32NAMEEXTPROC) (GLuint semaphore, GLenum handleType, const void *name);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glImportSemaphoreWin32HandleEXT (GLuint semaphore, GLenum handleType, void *handle);
+GLAPI void APIENTRY glImportSemaphoreWin32NameEXT (GLuint semaphore, GLenum handleType, const void *name);
+#endif
+#endif /* GL_EXT_semaphore_win32 */
+
 #ifndef GL_EXT_separate_shader_objects
 #define GL_EXT_separate_shader_objects 1
 #define GL_ACTIVE_PROGRAM_EXT             0x8B8D
@@ -7843,6 +8106,19 @@ GLAPI GLuint APIENTRY glCreateShaderProgramEXT (GLenum type, const GLchar *strin
 #define GL_SEPARATE_SPECULAR_COLOR_EXT    0x81FA
 #endif /* GL_EXT_separate_specular_color */
 
+#ifndef GL_EXT_shader_framebuffer_fetch
+#define GL_EXT_shader_framebuffer_fetch 1
+#define GL_FRAGMENT_SHADER_DISCARDS_SAMPLES_EXT 0x8A52
+#endif /* GL_EXT_shader_framebuffer_fetch */
+
+#ifndef GL_EXT_shader_framebuffer_fetch_non_coherent
+#define GL_EXT_shader_framebuffer_fetch_non_coherent 1
+typedef void (APIENTRYP PFNGLFRAMEBUFFERFETCHBARRIEREXTPROC) (void);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glFramebufferFetchBarrierEXT (void);
+#endif
+#endif /* GL_EXT_shader_framebuffer_fetch_non_coherent */
+
 #ifndef GL_EXT_shader_image_load_formatted
 #define GL_EXT_shader_image_load_formatted 1
 #endif /* GL_EXT_shader_image_load_formatted */
@@ -8143,6 +8419,8 @@ GLAPI void APIENTRY glTexBufferEXT (GLenum target, GLenum internalformat, GLuint
 
 #ifndef GL_EXT_texture_filter_minmax
 #define GL_EXT_texture_filter_minmax 1
+#define GL_TEXTURE_REDUCTION_MODE_EXT     0x9366
+#define GL_WEIGHTED_AVERAGE_EXT           0x9367
 #endif /* GL_EXT_texture_filter_minmax */
 
 #ifndef GL_EXT_texture_integer
@@ -8277,6 +8555,11 @@ GLAPI void APIENTRY glTextureNormalEXT (GLenum mode);
 #define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
 #endif /* GL_EXT_texture_sRGB */
 
+#ifndef GL_EXT_texture_sRGB_R8
+#define GL_EXT_texture_sRGB_R8 1
+#define GL_SR8_EXT                        0x8FBD
+#endif /* GL_EXT_texture_sRGB_R8 */
+
 #ifndef GL_EXT_texture_sRGB_decode
 #define GL_EXT_texture_sRGB_decode 1
 #define GL_TEXTURE_SRGB_DECODE_EXT        0x8A48
@@ -8689,6 +8972,16 @@ GLAPI void APIENTRY glVertexWeightPointerEXT (GLint size, GLenum type, GLsizei s
 #endif
 #endif /* GL_EXT_vertex_weighting */
 
+#ifndef GL_EXT_win32_keyed_mutex
+#define GL_EXT_win32_keyed_mutex 1
+typedef GLboolean (APIENTRYP PFNGLACQUIREKEYEDMUTEXWIN32EXTPROC) (GLuint memory, GLuint64 key, GLuint timeout);
+typedef GLboolean (APIENTRYP PFNGLRELEASEKEYEDMUTEXWIN32EXTPROC) (GLuint memory, GLuint64 key);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI GLboolean APIENTRY glAcquireKeyedMutexWin32EXT (GLuint memory, GLuint64 key, GLuint timeout);
+GLAPI GLboolean APIENTRY glReleaseKeyedMutexWin32EXT (GLuint memory, GLuint64 key);
+#endif
+#endif /* GL_EXT_win32_keyed_mutex */
+
 #ifndef GL_EXT_window_rectangles
 #define GL_EXT_window_rectangles 1
 #define GL_INCLUSIVE_EXT                  0x8F10
@@ -8880,6 +9173,11 @@ GLAPI void APIENTRY glBlendFuncSeparateINGR (GLenum sfactorRGB, GLenum dfactorRG
 #define GL_INTERLACE_READ_INGR            0x8568
 #endif /* GL_INGR_interlace_read */
 
+#ifndef GL_INTEL_blackhole_render
+#define GL_INTEL_blackhole_render 1
+#define GL_BLACKHOLE_RENDER_INTEL         0x83FC
+#endif /* GL_INTEL_blackhole_render */
+
 #ifndef GL_INTEL_conservative_rasterization
 #define GL_INTEL_conservative_rasterization 1
 #define GL_CONSERVATIVE_RASTERIZATION_INTEL 0x83FE
@@ -8961,7 +9259,7 @@ typedef void (APIENTRYP PFNGLENDPERFQUERYINTELPROC) (GLuint queryHandle);
 typedef void (APIENTRYP PFNGLGETFIRSTPERFQUERYIDINTELPROC) (GLuint *queryId);
 typedef void (APIENTRYP PFNGLGETNEXTPERFQUERYIDINTELPROC) (GLuint queryId, GLuint *nextQueryId);
 typedef void (APIENTRYP PFNGLGETPERFCOUNTERINFOINTELPROC) (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
-typedef void (APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten);
+typedef void (APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten);
 typedef void (APIENTRYP PFNGLGETPERFQUERYIDBYNAMEINTELPROC) (GLchar *queryName, GLuint *queryId);
 typedef void (APIENTRYP PFNGLGETPERFQUERYINFOINTELPROC) (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask);
 #ifdef GL_GLEXT_PROTOTYPES
@@ -8972,7 +9270,7 @@ GLAPI void APIENTRY glEndPerfQueryINTEL (GLuint queryHandle);
 GLAPI void APIENTRY glGetFirstPerfQueryIdINTEL (GLuint *queryId);
 GLAPI void APIENTRY glGetNextPerfQueryIdINTEL (GLuint queryId, GLuint *nextQueryId);
 GLAPI void APIENTRY glGetPerfCounterInfoINTEL (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
-GLAPI void APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten);
+GLAPI void APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten);
 GLAPI void APIENTRY glGetPerfQueryIdByNameINTEL (GLchar *queryName, GLuint *queryId);
 GLAPI void APIENTRY glGetPerfQueryInfoINTEL (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask);
 #endif
@@ -8993,6 +9291,11 @@ GLAPI void APIENTRY glGetPerfQueryInfoINTEL (GLuint queryId, GLuint queryNameLen
 #define GL_PACK_INVERT_MESA               0x8758
 #endif /* GL_MESA_pack_invert */
 
+#ifndef GL_MESA_program_binary_formats
+#define GL_MESA_program_binary_formats 1
+#define GL_PROGRAM_BINARY_FORMAT_MESA     0x875F
+#endif /* GL_MESA_program_binary_formats */
+
 #ifndef GL_MESA_resize_buffers
 #define GL_MESA_resize_buffers 1
 typedef void (APIENTRYP PFNGLRESIZEBUFFERSMESAPROC) (void);
@@ -9005,6 +9308,13 @@ GLAPI void APIENTRY glResizeBuffersMESA (void);
 #define GL_MESA_shader_integer_functions 1
 #endif /* GL_MESA_shader_integer_functions */
 
+#ifndef GL_MESA_tile_raster_order
+#define GL_MESA_tile_raster_order 1
+#define GL_TILE_RASTER_ORDER_FIXED_MESA   0x8BB8
+#define GL_TILE_RASTER_ORDER_INCREASING_X_MESA 0x8BB9
+#define GL_TILE_RASTER_ORDER_INCREASING_Y_MESA 0x8BBA
+#endif /* GL_MESA_tile_raster_order */
+
 #ifndef GL_MESA_window_pos
 #define GL_MESA_window_pos 1
 typedef void (APIENTRYP PFNGLWINDOWPOS2DMESAPROC) (GLdouble x, GLdouble y);
@@ -9231,6 +9541,10 @@ GLAPI void APIENTRY glBlendBarrierNV (void);
 #define GL_BLEND_ADVANCED_COHERENT_NV     0x9285
 #endif /* GL_NV_blend_equation_advanced_coherent */
 
+#ifndef GL_NV_blend_minmax_factor
+#define GL_NV_blend_minmax_factor 1
+#endif /* GL_NV_blend_minmax_factor */
+
 #ifndef GL_NV_blend_square
 #define GL_NV_blend_square 1
 #endif /* GL_NV_blend_square */
@@ -9311,6 +9625,10 @@ GLAPI void APIENTRY glCallCommandListNV (GLuint list);
 #define GL_COMPUTE_PROGRAM_PARAMETER_BUFFER_NV 0x90FC
 #endif /* GL_NV_compute_program5 */
 
+#ifndef GL_NV_compute_shader_derivatives
+#define GL_NV_compute_shader_derivatives 1
+#endif /* GL_NV_compute_shader_derivatives */
+
 #ifndef GL_NV_conditional_render
 #define GL_NV_conditional_render 1
 #define GL_QUERY_WAIT_NV                  0x8E13
@@ -9348,6 +9666,11 @@ GLAPI void APIENTRY glConservativeRasterParameterfNV (GLenum pname, GLfloat valu
 #endif
 #endif /* GL_NV_conservative_raster_dilate */
 
+#ifndef GL_NV_conservative_raster_pre_snap
+#define GL_NV_conservative_raster_pre_snap 1
+#define GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_NV 0x9550
+#endif /* GL_NV_conservative_raster_pre_snap */
+
 #ifndef GL_NV_conservative_raster_pre_snap_triangles
 #define GL_NV_conservative_raster_pre_snap_triangles 1
 #define GL_CONSERVATIVE_RASTER_MODE_NV    0x954D
@@ -9359,6 +9682,10 @@ GLAPI void APIENTRY glConservativeRasterParameteriNV (GLenum pname, GLint param)
 #endif
 #endif /* GL_NV_conservative_raster_pre_snap_triangles */
 
+#ifndef GL_NV_conservative_raster_underestimation
+#define GL_NV_conservative_raster_underestimation 1
+#endif /* GL_NV_conservative_raster_underestimation */
+
 #ifndef GL_NV_copy_depth_to_color
 #define GL_NV_copy_depth_to_color 1
 #define GL_DEPTH_STENCIL_TO_RGBA_NV       0x886E
@@ -9600,6 +9927,10 @@ GLAPI void APIENTRY glGetProgramNamedParameterdvNV (GLuint id, GLsizei len, cons
 #define GL_NV_fragment_program_option 1
 #endif /* GL_NV_fragment_program_option */
 
+#ifndef GL_NV_fragment_shader_barycentric
+#define GL_NV_fragment_shader_barycentric 1
+#endif /* GL_NV_fragment_shader_barycentric */
+
 #ifndef GL_NV_fragment_shader_interlock
 #define GL_NV_fragment_shader_interlock 1
 #endif /* GL_NV_fragment_shader_interlock */
@@ -9667,7 +9998,7 @@ GLAPI void APIENTRY glFramebufferTextureFaceEXT (GLenum target, GLenum attachmen
 #define GL_PER_GPU_STORAGE_NV             0x9548
 #define GL_MULTICAST_PROGRAMMABLE_SAMPLE_LOCATION_NV 0x9549
 typedef void (APIENTRYP PFNGLRENDERGPUMASKNVPROC) (GLbitfield mask);
-typedef void (APIENTRYP PFNGLMULTICASTBUFFERSUBDATANVPROC) (GLbitfield gpuMask, GLuint buffer, GLintptr offset, GLsizeiptr size, const GLvoid *data);
+typedef void (APIENTRYP PFNGLMULTICASTBUFFERSUBDATANVPROC) (GLbitfield gpuMask, GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data);
 typedef void (APIENTRYP PFNGLMULTICASTCOPYBUFFERSUBDATANVPROC) (GLuint readGpu, GLbitfield writeGpuMask, GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
 typedef void (APIENTRYP PFNGLMULTICASTCOPYIMAGESUBDATANVPROC) (GLuint srcGpu, GLbitfield dstGpuMask, GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
 typedef void (APIENTRYP PFNGLMULTICASTBLITFRAMEBUFFERNVPROC) (GLuint srcGpu, GLuint dstGpu, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
@@ -9680,7 +10011,7 @@ typedef void (APIENTRYP PFNGLMULTICASTGETQUERYOBJECTI64VNVPROC) (GLuint gpu, GLu
 typedef void (APIENTRYP PFNGLMULTICASTGETQUERYOBJECTUI64VNVPROC) (GLuint gpu, GLuint id, GLenum pname, GLuint64 *params);
 #ifdef GL_GLEXT_PROTOTYPES
 GLAPI void APIENTRY glRenderGpuMaskNV (GLbitfield mask);
-GLAPI void APIENTRY glMulticastBufferSubDataNV (GLbitfield gpuMask, GLuint buffer, GLintptr offset, GLsizeiptr size, const GLvoid *data);
+GLAPI void APIENTRY glMulticastBufferSubDataNV (GLbitfield gpuMask, GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data);
 GLAPI void APIENTRY glMulticastCopyBufferSubDataNV (GLuint readGpu, GLbitfield writeGpuMask, GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
 GLAPI void APIENTRY glMulticastCopyImageSubDataNV (GLuint srcGpu, GLbitfield dstGpuMask, GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
 GLAPI void APIENTRY glMulticastBlitFramebufferNV (GLuint srcGpu, GLuint dstGpu, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
@@ -9884,6 +10215,96 @@ GLAPI void APIENTRY glGetInternalformatSampleivNV (GLenum target, GLenum interna
 #define GL_MAX_SPOT_EXPONENT_NV           0x8505
 #endif /* GL_NV_light_max_exponent */
 
+#ifndef GL_NV_memory_attachment
+#define GL_NV_memory_attachment 1
+#define GL_ATTACHED_MEMORY_OBJECT_NV      0x95A4
+#define GL_ATTACHED_MEMORY_OFFSET_NV      0x95A5
+#define GL_MEMORY_ATTACHABLE_ALIGNMENT_NV 0x95A6
+#define GL_MEMORY_ATTACHABLE_SIZE_NV      0x95A7
+#define GL_MEMORY_ATTACHABLE_NV           0x95A8
+#define GL_DETACHED_MEMORY_INCARNATION_NV 0x95A9
+#define GL_DETACHED_TEXTURES_NV           0x95AA
+#define GL_DETACHED_BUFFERS_NV            0x95AB
+#define GL_MAX_DETACHED_TEXTURES_NV       0x95AC
+#define GL_MAX_DETACHED_BUFFERS_NV        0x95AD
+typedef void (APIENTRYP PFNGLGETMEMORYOBJECTDETACHEDRESOURCESUIVNVPROC) (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params);
+typedef void (APIENTRYP PFNGLRESETMEMORYOBJECTPARAMETERNVPROC) (GLuint memory, GLenum pname);
+typedef void (APIENTRYP PFNGLTEXATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLBUFFERATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLTEXTUREATTACHMEMORYNVPROC) (GLuint texture, GLuint memory, GLuint64 offset);
+typedef void (APIENTRYP PFNGLNAMEDBUFFERATTACHMEMORYNVPROC) (GLuint buffer, GLuint memory, GLuint64 offset);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGetMemoryObjectDetachedResourcesuivNV (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params);
+GLAPI void APIENTRY glResetMemoryObjectParameterNV (GLuint memory, GLenum pname);
+GLAPI void APIENTRY glTexAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glBufferAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glTextureAttachMemoryNV (GLuint texture, GLuint memory, GLuint64 offset);
+GLAPI void APIENTRY glNamedBufferAttachMemoryNV (GLuint buffer, GLuint memory, GLuint64 offset);
+#endif
+#endif /* GL_NV_memory_attachment */
+
+#ifndef GL_NV_mesh_shader
+#define GL_NV_mesh_shader 1
+#define GL_MESH_SHADER_NV                 0x9559
+#define GL_TASK_SHADER_NV                 0x955A
+#define GL_MAX_MESH_UNIFORM_BLOCKS_NV     0x8E60
+#define GL_MAX_MESH_TEXTURE_IMAGE_UNITS_NV 0x8E61
+#define GL_MAX_MESH_IMAGE_UNIFORMS_NV     0x8E62
+#define GL_MAX_MESH_UNIFORM_COMPONENTS_NV 0x8E63
+#define GL_MAX_MESH_ATOMIC_COUNTER_BUFFERS_NV 0x8E64
+#define GL_MAX_MESH_ATOMIC_COUNTERS_NV    0x8E65
+#define GL_MAX_MESH_SHADER_STORAGE_BLOCKS_NV 0x8E66
+#define GL_MAX_COMBINED_MESH_UNIFORM_COMPONENTS_NV 0x8E67
+#define GL_MAX_TASK_UNIFORM_BLOCKS_NV     0x8E68
+#define GL_MAX_TASK_TEXTURE_IMAGE_UNITS_NV 0x8E69
+#define GL_MAX_TASK_IMAGE_UNIFORMS_NV     0x8E6A
+#define GL_MAX_TASK_UNIFORM_COMPONENTS_NV 0x8E6B
+#define GL_MAX_TASK_ATOMIC_COUNTER_BUFFERS_NV 0x8E6C
+#define GL_MAX_TASK_ATOMIC_COUNTERS_NV    0x8E6D
+#define GL_MAX_TASK_SHADER_STORAGE_BLOCKS_NV 0x8E6E
+#define GL_MAX_COMBINED_TASK_UNIFORM_COMPONENTS_NV 0x8E6F
+#define GL_MAX_MESH_WORK_GROUP_INVOCATIONS_NV 0x95A2
+#define GL_MAX_TASK_WORK_GROUP_INVOCATIONS_NV 0x95A3
+#define GL_MAX_MESH_TOTAL_MEMORY_SIZE_NV  0x9536
+#define GL_MAX_TASK_TOTAL_MEMORY_SIZE_NV  0x9537
+#define GL_MAX_MESH_OUTPUT_VERTICES_NV    0x9538
+#define GL_MAX_MESH_OUTPUT_PRIMITIVES_NV  0x9539
+#define GL_MAX_TASK_OUTPUT_COUNT_NV       0x953A
+#define GL_MAX_DRAW_MESH_TASKS_COUNT_NV   0x953D
+#define GL_MAX_MESH_VIEWS_NV              0x9557
+#define GL_MESH_OUTPUT_PER_VERTEX_GRANULARITY_NV 0x92DF
+#define GL_MESH_OUTPUT_PER_PRIMITIVE_GRANULARITY_NV 0x9543
+#define GL_MAX_MESH_WORK_GROUP_SIZE_NV    0x953B
+#define GL_MAX_TASK_WORK_GROUP_SIZE_NV    0x953C
+#define GL_MESH_WORK_GROUP_SIZE_NV        0x953E
+#define GL_TASK_WORK_GROUP_SIZE_NV        0x953F
+#define GL_MESH_VERTICES_OUT_NV           0x9579
+#define GL_MESH_PRIMITIVES_OUT_NV         0x957A
+#define GL_MESH_OUTPUT_TYPE_NV            0x957B
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_MESH_SHADER_NV 0x959C
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_TASK_SHADER_NV 0x959D
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_MESH_SHADER_NV 0x959E
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TASK_SHADER_NV 0x959F
+#define GL_REFERENCED_BY_MESH_SHADER_NV   0x95A0
+#define GL_REFERENCED_BY_TASK_SHADER_NV   0x95A1
+#define GL_MESH_SUBROUTINE_NV             0x957C
+#define GL_TASK_SUBROUTINE_NV             0x957D
+#define GL_MESH_SUBROUTINE_UNIFORM_NV     0x957E
+#define GL_TASK_SUBROUTINE_UNIFORM_NV     0x957F
+#define GL_MESH_SHADER_BIT_NV             0x00000040
+#define GL_TASK_SHADER_BIT_NV             0x00000080
+typedef void (APIENTRYP PFNGLDRAWMESHTASKSNVPROC) (GLuint first, GLuint count);
+typedef void (APIENTRYP PFNGLDRAWMESHTASKSINDIRECTNVPROC) (GLintptr indirect);
+typedef void (APIENTRYP PFNGLMULTIDRAWMESHTASKSINDIRECTNVPROC) (GLintptr indirect, GLsizei drawcount, GLsizei stride);
+typedef void (APIENTRYP PFNGLMULTIDRAWMESHTASKSINDIRECTCOUNTNVPROC) (GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glDrawMeshTasksNV (GLuint first, GLuint count);
+GLAPI void APIENTRY glDrawMeshTasksIndirectNV (GLintptr indirect);
+GLAPI void APIENTRY glMultiDrawMeshTasksIndirectNV (GLintptr indirect, GLsizei drawcount, GLsizei stride);
+GLAPI void APIENTRY glMultiDrawMeshTasksIndirectCountNV (GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+#endif
+#endif /* GL_NV_mesh_shader */
+
 #ifndef GL_NV_multisample_coverage
 #define GL_NV_multisample_coverage 1
 #endif /* GL_NV_multisample_coverage */
@@ -10311,6 +10732,32 @@ GLAPI void APIENTRY glPrimitiveRestartIndexNV (GLuint index);
 #endif
 #endif /* GL_NV_primitive_restart */
 
+#ifndef GL_NV_query_resource
+#define GL_NV_query_resource 1
+#define GL_QUERY_RESOURCE_TYPE_VIDMEM_ALLOC_NV 0x9540
+#define GL_QUERY_RESOURCE_MEMTYPE_VIDMEM_NV 0x9542
+#define GL_QUERY_RESOURCE_SYS_RESERVED_NV 0x9544
+#define GL_QUERY_RESOURCE_TEXTURE_NV      0x9545
+#define GL_QUERY_RESOURCE_RENDERBUFFER_NV 0x9546
+#define GL_QUERY_RESOURCE_BUFFEROBJECT_NV 0x9547
+typedef GLint (APIENTRYP PFNGLQUERYRESOURCENVPROC) (GLenum queryType, GLint tagId, GLuint bufSize, GLint *buffer);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI GLint APIENTRY glQueryResourceNV (GLenum queryType, GLint tagId, GLuint bufSize, GLint *buffer);
+#endif
+#endif /* GL_NV_query_resource */
+
+#ifndef GL_NV_query_resource_tag
+#define GL_NV_query_resource_tag 1
+typedef void (APIENTRYP PFNGLGENQUERYRESOURCETAGNVPROC) (GLsizei n, GLint *tagIds);
+typedef void (APIENTRYP PFNGLDELETEQUERYRESOURCETAGNVPROC) (GLsizei n, const GLint *tagIds);
+typedef void (APIENTRYP PFNGLQUERYRESOURCETAGNVPROC) (GLint tagId, const GLchar *tagString);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGenQueryResourceTagNV (GLsizei n, GLint *tagIds);
+GLAPI void APIENTRY glDeleteQueryResourceTagNV (GLsizei n, const GLint *tagIds);
+GLAPI void APIENTRY glQueryResourceTagNV (GLint tagId, const GLchar *tagString);
+#endif
+#endif /* GL_NV_query_resource_tag */
+
 #ifndef GL_NV_register_combiners
 #define GL_NV_register_combiners 1
 #define GL_REGISTER_COMBINERS_NV          0x8522
@@ -10403,6 +10850,11 @@ GLAPI void APIENTRY glGetCombinerStageParameterfvNV (GLenum stage, GLenum pname,
 #endif
 #endif /* GL_NV_register_combiners2 */
 
+#ifndef GL_NV_representative_fragment_test
+#define GL_NV_representative_fragment_test 1
+#define GL_REPRESENTATIVE_FRAGMENT_TEST_NV 0x937F
+#endif /* GL_NV_representative_fragment_test */
+
 #ifndef GL_NV_robustness_video_memory_purge
 #define GL_NV_robustness_video_memory_purge 1
 #define GL_PURGED_CONTEXT_RESET_NV        0x92BB
@@ -10432,6 +10884,18 @@ GLAPI void APIENTRY glResolveDepthValuesNV (void);
 #define GL_NV_sample_mask_override_coverage 1
 #endif /* GL_NV_sample_mask_override_coverage */
 
+#ifndef GL_NV_scissor_exclusive
+#define GL_NV_scissor_exclusive 1
+#define GL_SCISSOR_TEST_EXCLUSIVE_NV      0x9555
+#define GL_SCISSOR_BOX_EXCLUSIVE_NV       0x9556
+typedef void (APIENTRYP PFNGLSCISSOREXCLUSIVENVPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+typedef void (APIENTRYP PFNGLSCISSOREXCLUSIVEARRAYVNVPROC) (GLuint first, GLsizei count, const GLint *v);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glScissorExclusiveNV (GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI void APIENTRY glScissorExclusiveArrayvNV (GLuint first, GLsizei count, const GLint *v);
+#endif
+#endif /* GL_NV_scissor_exclusive */
+
 #ifndef GL_NV_shader_atomic_counters
 #define GL_NV_shader_atomic_counters 1
 #endif /* GL_NV_shader_atomic_counters */
@@ -10496,6 +10960,10 @@ GLAPI void APIENTRY glProgramUniformui64vNV (GLuint program, GLint location, GLs
 #define GL_NV_shader_storage_buffer_object 1
 #endif /* GL_NV_shader_storage_buffer_object */
 
+#ifndef GL_NV_shader_texture_footprint
+#define GL_NV_shader_texture_footprint 1
+#endif /* GL_NV_shader_texture_footprint */
+
 #ifndef GL_NV_shader_thread_group
 #define GL_NV_shader_thread_group 1
 #define GL_WARP_SIZE_NV                   0x9339
@@ -10507,6 +10975,47 @@ GLAPI void APIENTRY glProgramUniformui64vNV (GLuint program, GLint location, GLs
 #define GL_NV_shader_thread_shuffle 1
 #endif /* GL_NV_shader_thread_shuffle */
 
+#ifndef GL_NV_shading_rate_image
+#define GL_NV_shading_rate_image 1
+#define GL_SHADING_RATE_IMAGE_NV          0x9563
+#define GL_SHADING_RATE_NO_INVOCATIONS_NV 0x9564
+#define GL_SHADING_RATE_1_INVOCATION_PER_PIXEL_NV 0x9565
+#define GL_SHADING_RATE_1_INVOCATION_PER_1X2_PIXELS_NV 0x9566
+#define GL_SHADING_RATE_1_INVOCATION_PER_2X1_PIXELS_NV 0x9567
+#define GL_SHADING_RATE_1_INVOCATION_PER_2X2_PIXELS_NV 0x9568
+#define GL_SHADING_RATE_1_INVOCATION_PER_2X4_PIXELS_NV 0x9569
+#define GL_SHADING_RATE_1_INVOCATION_PER_4X2_PIXELS_NV 0x956A
+#define GL_SHADING_RATE_1_INVOCATION_PER_4X4_PIXELS_NV 0x956B
+#define GL_SHADING_RATE_2_INVOCATIONS_PER_PIXEL_NV 0x956C
+#define GL_SHADING_RATE_4_INVOCATIONS_PER_PIXEL_NV 0x956D
+#define GL_SHADING_RATE_8_INVOCATIONS_PER_PIXEL_NV 0x956E
+#define GL_SHADING_RATE_16_INVOCATIONS_PER_PIXEL_NV 0x956F
+#define GL_SHADING_RATE_IMAGE_BINDING_NV  0x955B
+#define GL_SHADING_RATE_IMAGE_TEXEL_WIDTH_NV 0x955C
+#define GL_SHADING_RATE_IMAGE_TEXEL_HEIGHT_NV 0x955D
+#define GL_SHADING_RATE_IMAGE_PALETTE_SIZE_NV 0x955E
+#define GL_MAX_COARSE_FRAGMENT_SAMPLES_NV 0x955F
+#define GL_SHADING_RATE_SAMPLE_ORDER_DEFAULT_NV 0x95AE
+#define GL_SHADING_RATE_SAMPLE_ORDER_PIXEL_MAJOR_NV 0x95AF
+#define GL_SHADING_RATE_SAMPLE_ORDER_SAMPLE_MAJOR_NV 0x95B0
+typedef void (APIENTRYP PFNGLBINDSHADINGRATEIMAGENVPROC) (GLuint texture);
+typedef void (APIENTRYP PFNGLGETSHADINGRATEIMAGEPALETTENVPROC) (GLuint viewport, GLuint entry, GLenum *rate);
+typedef void (APIENTRYP PFNGLGETSHADINGRATESAMPLELOCATIONIVNVPROC) (GLenum rate, GLuint samples, GLuint index, GLint *location);
+typedef void (APIENTRYP PFNGLSHADINGRATEIMAGEBARRIERNVPROC) (GLboolean synchronize);
+typedef void (APIENTRYP PFNGLSHADINGRATEIMAGEPALETTENVPROC) (GLuint viewport, GLuint first, GLsizei count, const GLenum *rates);
+typedef void (APIENTRYP PFNGLSHADINGRATESAMPLEORDERNVPROC) (GLenum order);
+typedef void (APIENTRYP PFNGLSHADINGRATESAMPLEORDERCUSTOMNVPROC) (GLenum rate, GLuint samples, const GLint *locations);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBindShadingRateImageNV (GLuint texture);
+GLAPI void APIENTRY glGetShadingRateImagePaletteNV (GLuint viewport, GLuint entry, GLenum *rate);
+GLAPI void APIENTRY glGetShadingRateSampleLocationivNV (GLenum rate, GLuint samples, GLuint index, GLint *location);
+GLAPI void APIENTRY glShadingRateImageBarrierNV (GLboolean synchronize);
+GLAPI void APIENTRY glShadingRateImagePaletteNV (GLuint viewport, GLuint first, GLsizei count, const GLenum *rates);
+GLAPI void APIENTRY glShadingRateSampleOrderNV (GLenum order);
+GLAPI void APIENTRY glShadingRateSampleOrderCustomNV (GLenum rate, GLuint samples, const GLint *locations);
+#endif
+#endif /* GL_NV_shading_rate_image */
+
 #ifndef GL_NV_stereo_view_rendering
 #define GL_NV_stereo_view_rendering 1
 #endif /* GL_NV_stereo_view_rendering */
@@ -10587,6 +11096,10 @@ GLAPI void APIENTRY glTextureImage3DMultisampleCoverageNV (GLuint texture, GLenu
 #define GL_MAX_RECTANGLE_TEXTURE_SIZE_NV  0x84F8
 #endif /* GL_NV_texture_rectangle */
 
+#ifndef GL_NV_texture_rectangle_compressed
+#define GL_NV_texture_rectangle_compressed 1
+#endif /* GL_NV_texture_rectangle_compressed */
+
 #ifndef GL_NV_texture_shader
 #define GL_NV_texture_shader 1
 #define GL_OFFSET_TEXTURE_RECTANGLE_NV    0x864C
@@ -10813,6 +11326,14 @@ GLAPI void APIENTRY glVDPAUUnmapSurfacesNV (GLsizei numSurface, const GLvdpauSur
 #endif
 #endif /* GL_NV_vdpau_interop */
 
+#ifndef GL_NV_vdpau_interop2
+#define GL_NV_vdpau_interop2 1
+typedef GLvdpauSurfaceNV (APIENTRYP PFNGLVDPAUREGISTERVIDEOSURFACEWITHPICTURESTRUCTURENVPROC) (const void *vdpSurface, GLenum target, GLsizei numTextureNames, const GLuint *textureNames, GLboolean isFrameStructure);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI GLvdpauSurfaceNV APIENTRY glVDPAURegisterVideoSurfaceWithPictureStructureNV (const void *vdpSurface, GLenum target, GLsizei numTextureNames, const GLuint *textureNames, GLboolean isFrameStructure);
+#endif
+#endif /* GL_NV_vdpau_interop2 */
+
 #ifndef GL_NV_vertex_array_range
 #define GL_NV_vertex_array_range 1
 #define GL_VERTEX_ARRAY_RANGE_NV          0x851D
diff --git a/src/gui/opengl/qopenglextensions_p.h b/src/gui/opengl/qopenglextensions_p.h
index af8ee8201d..137f1e831f 100644
--- a/src/gui/opengl/qopenglextensions_p.h
+++ b/src/gui/opengl/qopenglextensions_p.h
@@ -107,7 +107,7 @@ public:
     QOpenGLExtensionsPrivate *d() const;
 
 private:
-    static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != 0; }
+    static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != nullptr; }
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLExtensions::OpenGLExtensions)
diff --git a/src/gui/opengl/qopenglframebufferobject_p.h b/src/gui/opengl/qopenglframebufferobject_p.h
index 778a38b823..644bb6c59b 100644
--- a/src/gui/opengl/qopenglframebufferobject_p.h
+++ b/src/gui/opengl/qopenglframebufferobject_p.h
@@ -109,8 +109,8 @@ public:
 class QOpenGLFramebufferObjectPrivate
 {
 public:
-    QOpenGLFramebufferObjectPrivate() : fbo_guard(0), depth_buffer_guard(0)
-                                  , stencil_buffer_guard(0)
+    QOpenGLFramebufferObjectPrivate() : fbo_guard(nullptr), depth_buffer_guard(nullptr)
+                                  , stencil_buffer_guard(nullptr)
                                   , valid(false) {}
     ~QOpenGLFramebufferObjectPrivate() {}
 
@@ -135,9 +135,9 @@ public:
     QOpenGLExtensions funcs;
 
     struct ColorAttachment {
-        ColorAttachment() : internalFormat(0), guard(0) { }
+        ColorAttachment() : internalFormat(0), guard(nullptr) { }
         ColorAttachment(const QSize &size, GLenum internalFormat)
-            : size(size), internalFormat(internalFormat), guard(0) { }
+            : size(size), internalFormat(internalFormat), guard(nullptr) { }
         QSize size;
         GLenum internalFormat;
         QOpenGLSharedResourceGuard *guard;
diff --git a/src/gui/opengl/qopenglgradientcache_p.h b/src/gui/opengl/qopenglgradientcache_p.h
index cbdbbb0c54..1d34223bdd 100644
--- a/src/gui/opengl/qopenglgradientcache_p.h
+++ b/src/gui/opengl/qopenglgradientcache_p.h
@@ -66,7 +66,7 @@ class QOpenGL2GradientCache : public QOpenGLSharedResource
     struct CacheInfo
     {
         inline CacheInfo(QGradientStops s, qreal op, QGradient::InterpolationMode mode) :
-            stops(qMove(s)), opacity(op), interpolationMode(mode) {}
+            stops(std::move(s)), opacity(op), interpolationMode(mode) {}
 
         GLuint texId;
         QGradientStops stops;
diff --git a/src/gui/opengl/qopenglpaintengine_p.h b/src/gui/opengl/qopenglpaintengine_p.h
index 15ac240b89..81f17572b2 100644
--- a/src/gui/opengl/qopenglpaintengine_p.h
+++ b/src/gui/opengl/qopenglpaintengine_p.h
@@ -187,9 +187,9 @@ public:
 
     QOpenGL2PaintEngineExPrivate(QOpenGL2PaintEngineEx *q_ptr) :
             q(q_ptr),
-            shaderManager(0),
+            shaderManager(nullptr),
             width(0), height(0),
-            ctx(0),
+            ctx(nullptr),
             useSystemClip(true),
             elementIndicesVBOId(0),
             opacityArray(0),
@@ -361,9 +361,9 @@ void QOpenGL2PaintEngineExPrivate::uploadData(unsigned int arrayIndex, const GLf
             opacityBuffer.allocate(data, count * sizeof(float));
         }
         if (arrayIndex == QT_OPACITY_ATTR)
-            funcs.glVertexAttribPointer(arrayIndex, 1, GL_FLOAT, GL_FALSE, 0, 0);
+            funcs.glVertexAttribPointer(arrayIndex, 1, GL_FLOAT, GL_FALSE, 0, nullptr);
         else
-            funcs.glVertexAttribPointer(arrayIndex, 2, GL_FLOAT, GL_FALSE, 0, 0);
+            funcs.glVertexAttribPointer(arrayIndex, 2, GL_FLOAT, GL_FALSE, 0, nullptr);
     } else {
         // If we already uploaded the data we don't have to do it again
         if (data == vertexAttribPointers[arrayIndex])
diff --git a/src/gui/opengl/qopenglpixeltransferoptions.h b/src/gui/opengl/qopenglpixeltransferoptions.h
index 2fc52b82d8..195543ae90 100644
--- a/src/gui/opengl/qopenglpixeltransferoptions.h
+++ b/src/gui/opengl/qopenglpixeltransferoptions.h
@@ -55,14 +55,12 @@ class Q_GUI_EXPORT QOpenGLPixelTransferOptions
 public:
     QOpenGLPixelTransferOptions();
     QOpenGLPixelTransferOptions(const QOpenGLPixelTransferOptions &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QOpenGLPixelTransferOptions &operator=(QOpenGLPixelTransferOptions &&other) Q_DECL_NOTHROW
+    QOpenGLPixelTransferOptions &operator=(QOpenGLPixelTransferOptions &&other) noexcept
     { swap(other); return *this; }
-#endif
     QOpenGLPixelTransferOptions &operator=(const QOpenGLPixelTransferOptions &);
     ~QOpenGLPixelTransferOptions();
 
-    void swap(QOpenGLPixelTransferOptions &other) Q_DECL_NOTHROW
+    void swap(QOpenGLPixelTransferOptions &other) noexcept
     { data.swap(other.data); }
 
     void setAlignment(int alignment);
diff --git a/src/gui/opengl/qopenglqueryhelper_p.h b/src/gui/opengl/qopenglqueryhelper_p.h
index 60dbf9c743..ad91ca9f96 100644
--- a/src/gui/opengl/qopenglqueryhelper_p.h
+++ b/src/gui/opengl/qopenglqueryhelper_p.h
@@ -65,18 +65,18 @@ class QOpenGLQueryHelper
 {
 public:
     QOpenGLQueryHelper(QOpenGLContext *context)
-        : GetQueryObjectuiv(0),
-          GetQueryObjectiv(0),
-          GetQueryiv(0),
-          EndQuery(0),
-          BeginQuery(0),
-          IsQuery(0),
-          DeleteQueries(0),
-          GenQueries(0),
-          GetInteger64v(0),
-          GetQueryObjectui64v(0),
-          GetQueryObjecti64v(0),
-          QueryCounter(0)
+        : GetQueryObjectuiv(nullptr),
+          GetQueryObjectiv(nullptr),
+          GetQueryiv(nullptr),
+          EndQuery(nullptr),
+          BeginQuery(nullptr),
+          IsQuery(nullptr),
+          DeleteQueries(nullptr),
+          GenQueries(nullptr),
+          GetInteger64v(nullptr),
+          GetQueryObjectui64v(nullptr),
+          GetQueryObjecti64v(nullptr),
+          QueryCounter(nullptr)
     {
         Q_ASSERT(context);
 
diff --git a/src/gui/opengl/qopengltexture.cpp b/src/gui/opengl/qopengltexture.cpp
index e04a00e592..61a6202017 100644
--- a/src/gui/opengl/qopengltexture.cpp
+++ b/src/gui/opengl/qopengltexture.cpp
@@ -1467,6 +1467,122 @@ void QOpenGLTexturePrivate::setData(int mipLevel, int layer, int layerCount, QOp
     }
 }
 
+void QOpenGLTexturePrivate::setData(int xOffset, int yOffset, int zOffset, int width, int height, int depth,
+                                    int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
+                                    QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType,
+                                    const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    switch (target) {
+    case QOpenGLTexture::Target1D:
+        Q_UNUSED(layer);
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(layerCount);
+        Q_UNUSED(yOffset);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(height);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage1D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, width,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::Target1DArray:
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(yOffset);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(height);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage2D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, layer,
+                                      width,
+                                      layerCount,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::Target2D:
+        Q_UNUSED(layer);
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(layerCount);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage2D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, yOffset,
+                                      width, height,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::Target2DArray:
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage3D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, yOffset, layer,
+                                      width, height, layerCount,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::Target3D:
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(layerCount);
+        texFuncs->glTextureSubImage3D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, yOffset, zOffset,
+                                      width, height, depth,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::TargetCubeMap:
+        Q_UNUSED(layer);
+        Q_UNUSED(layerCount);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage2D(textureId, cubeFace, bindingTarget, mipLevel,
+                                      xOffset, yOffset,
+                                      width, height,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::TargetCubeMapArray: {
+        Q_UNUSED(zOffset);
+        Q_UNUSED(depth);
+        int faceIndex = cubeFace - QOpenGLTexture::CubeMapPositiveX;
+        int layerFace = 6 * layer + faceIndex;
+        texFuncs->glTextureSubImage3D(textureId, target, bindingTarget, mipLevel,
+                                      xOffset, yOffset, layerFace,
+                                      width, height,
+                                      layerCount,
+                                      sourceFormat, sourceType, data, options);
+        break;
+    }
+
+    case QOpenGLTexture::TargetRectangle:
+        Q_UNUSED(mipLevel);
+        Q_UNUSED(layer);
+        Q_UNUSED(cubeFace);
+        Q_UNUSED(layerCount);
+        Q_UNUSED(zOffset);
+        Q_UNUSED(depth);
+        texFuncs->glTextureSubImage2D(textureId, target, bindingTarget, 0,
+                                      xOffset, yOffset,
+                                      width, height,
+                                      sourceFormat, sourceType, data, options);
+        break;
+
+    case QOpenGLTexture::Target2DMultisample:
+    case QOpenGLTexture::Target2DMultisampleArray:
+    case QOpenGLTexture::TargetBuffer:
+        // We don't upload pixel data for these targets
+        qWarning("QOpenGLTexture::setData(): Texture target does not support pixel data upload");
+        break;
+    }
+
+    // If requested perform automatic mip map generation
+    if (mipLevel == 0 && autoGenerateMipMaps && mipLevels > 1) {
+        Q_Q(QOpenGLTexture);
+        q->generateMipMaps();
+    }
+}
+
+
 void QOpenGLTexturePrivate::setCompressedData(int mipLevel, int layer, int layerCount,
                                               QOpenGLTexture::CubeMapFace cubeFace,
                                               int dataSize, const void *data,
@@ -3380,6 +3496,153 @@ void QOpenGLTexture::setData(PixelFormat sourceFormat, PixelType sourceType,
     d->setData(0, 0, 1, QOpenGLTexture::CubeMapPositiveX, sourceFormat, sourceType, data, options);
 }
 
+/*!
+    \since 5.14
+    \overload
+
+    This overload is to be used to update a part of the texture. Parameters \a
+    xOffset, \a yOffset, \a zOffset specify the texel offsets within the
+    texture. Parameters \a width, \a height and \a depth specify the dimensions
+    of the sub image.
+
+    The structure of the pixel data pointed to by \a data is specified by \a
+    sourceFormat and \a sourceType. The pixel data upload can optionally be
+    controlled by \a options.
+*/
+void QOpenGLTexture::setData(int xOffset, int yOffset, int zOffset,
+                             int width, int height, int depth,
+                             PixelFormat sourceFormat, PixelType sourceType,
+                             const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    Q_D(QOpenGLTexture);
+    Q_ASSERT(d->textureId);
+    d->setData(xOffset, yOffset, zOffset,
+               width, height, depth,
+               0, 0, 1,
+               QOpenGLTexture::CubeMapPositiveX, sourceFormat,
+               sourceType, data, options);
+}
+
+/*!
+    \since 5.14
+    \overload
+
+    This overload is to be used to update a part of the texture. Parameters \a
+    xOffset, \a yOffset, \a zOffset specify the texel offsets within the
+    texture. Parameters \a width, \a height and \a depth specify the dimensions
+    of the sub image. The mip map level the sub image we want to
+    update is specified with \a mipLevel.
+
+    The structure of the pixel data pointed to by \a data is specified by \a
+    sourceFormat and \a sourceType. The pixel data upload can optionally be
+    controlled by \a options.
+*/
+void QOpenGLTexture::setData(int xOffset, int yOffset, int zOffset,
+                             int width, int height, int depth,
+                             int mipLevel,
+                             PixelFormat sourceFormat, PixelType sourceType,
+                             const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    Q_D(QOpenGLTexture);
+    Q_ASSERT(d->textureId);
+    d->setData(xOffset, yOffset, zOffset,
+               width, height, depth,
+               mipLevel, 0, 1,
+               QOpenGLTexture::CubeMapPositiveX, sourceFormat,
+               sourceType, data, options);
+}
+
+/*!
+    \since 5.14
+    \overload
+
+    This overload is to be used to update a part of the texture. Parameters \a
+    xOffset, \a yOffset, \a zOffset specify the texel offsets within the
+    texture. Parameters \a width, \a height and \a depth specify the dimensions
+    of the sub image. The mip map level and layerof the sub image we want to
+    update are specified with \a mipLevel and \a layer.
+
+    The structure of the pixel data pointed to by \a data is specified by \a
+    sourceFormat and \a sourceType. The pixel data upload can optionally be
+    controlled by \a options.
+*/
+void QOpenGLTexture::setData(int xOffset, int yOffset, int zOffset,
+                             int width, int height, int depth,
+                             int mipLevel, int layer,
+                             PixelFormat sourceFormat, PixelType sourceType,
+                             const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    Q_D(QOpenGLTexture);
+    Q_ASSERT(d->textureId);
+    d->setData(xOffset, yOffset, zOffset,
+               width, height, depth,
+               mipLevel, layer, 1,
+               QOpenGLTexture::CubeMapPositiveX, sourceFormat,
+               sourceType, data, options);
+}
+
+/*!
+    \since 5.14
+    \overload
+
+    This overload is to be used to update a part of the texture. Parameters \a
+    xOffset, \a yOffset, \a zOffset specify the texel offsets within the
+    texture. Parameters \a width, \a height and \a depth specify the dimensions
+    of the sub image.The mip map level, layer and cube map face of the sub
+    image we want to update are specified with \a mipLevel, \a layer and \a
+    face.
+
+    The structure of the pixel data pointed to by \a data is specified by \a
+    sourceFormat and \a sourceType. The pixel data upload can optionally be
+    controlled by \a options.
+*/
+void QOpenGLTexture::setData(int xOffset, int yOffset, int zOffset,
+                             int width, int height, int depth,
+                             int mipLevel, int layer,
+                             CubeMapFace face,
+                             PixelFormat sourceFormat, PixelType sourceType,
+                             const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    Q_D(QOpenGLTexture);
+    Q_ASSERT(d->textureId);
+    d->setData(xOffset, yOffset, zOffset,
+               width, height, depth,
+               mipLevel, layer, 1,
+               face, sourceFormat,
+               sourceType, data, options);
+}
+
+/*!
+    \since 5.14
+    \overload
+
+    This overload is to be used to update a part of the texture. Parameters \a
+    xOffset, \a yOffset, \a zOffset specify the texel offsets within the
+    texture. Parameters \a width, \a height and \a depth specify the dimensions
+    of the sub image.The mip map level, starting layer, cube map face and
+    number of layers of the sub image we want to update are specified with \a
+    mipLevel, \a layer, \a face and \a layerCount.
+
+    The structure of the pixel data pointed to by \a data is specified by \a
+    sourceFormat and \a sourceType. The pixel data upload can optionally be
+    controlled by \a options.
+*/
+void QOpenGLTexture::setData(int xOffset, int yOffset, int zOffset,
+                             int width, int height, int depth,
+                             int mipLevel, int layer,
+                             CubeMapFace face, int layerCount,
+                             PixelFormat sourceFormat, PixelType sourceType,
+                             const void *data, const QOpenGLPixelTransferOptions * const options)
+{
+    Q_D(QOpenGLTexture);
+    Q_ASSERT(d->textureId);
+    d->setData(xOffset, yOffset, zOffset,
+               width, height, depth,
+               mipLevel, layer, layerCount,
+               face, sourceFormat,
+               sourceType, data, options);
+}
+
 #if QT_DEPRECATED_SINCE(5, 3)
 /*!
     \obsolete
diff --git a/src/gui/opengl/qopengltexture.h b/src/gui/opengl/qopengltexture.h
index c0c5283374..7d984babc8 100644
--- a/src/gui/opengl/qopengltexture.h
+++ b/src/gui/opengl/qopengltexture.h
@@ -485,6 +485,32 @@ public:
     void setData(PixelFormat sourceFormat, PixelType sourceType,
                  const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
 
+    void setData(int xOffset, int yOffset, int zOffset,
+                 int width, int height, int depth,
+                 PixelFormat sourceFormat, PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
+    void setData(int xOffset, int yOffset, int zOffset,
+                 int width, int height, int depth, int mipLevel,
+                 PixelFormat sourceFormat, PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
+    void setData(int xOffset, int yOffset, int zOffset,
+                 int width, int height, int depth,
+                 int mipLevel, int layer,
+                 PixelFormat sourceFormat, PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
+    void setData(int xOffset, int yOffset, int zOffset,
+                 int width, int height, int depth,
+                 int mipLevel, int layer,
+                 CubeMapFace cubeFace,
+                 PixelFormat sourceFormat, PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
+    void setData(int xOffset, int yOffset, int zOffset,
+                 int width, int height, int depth,
+                 int mipLevel, int layer,
+                 CubeMapFace cubeFace, int layerCount,
+                 PixelFormat sourceFormat, PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options = nullptr);
+
     // Compressed data upload
     // ### Qt 6: remove the non-const void * overloads
 #if QT_DEPRECATED_SINCE(5, 3)
diff --git a/src/gui/opengl/qopengltexture_p.h b/src/gui/opengl/qopengltexture_p.h
index f7694f77bc..9f3457ad0a 100644
--- a/src/gui/opengl/qopengltexture_p.h
+++ b/src/gui/opengl/qopengltexture_p.h
@@ -101,6 +101,10 @@ public:
     void setData(int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
                  QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType,
                  const void *data, const QOpenGLPixelTransferOptions * const options);
+    void setData(int xOffset, int yOffset, int zOffset, int width, int height, int depth,
+                 int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
+                 QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType,
+                 const void *data, const QOpenGLPixelTransferOptions * const options);
     void setCompressedData(int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
                            int dataSize, const void *data,
                            const QOpenGLPixelTransferOptions * const options);
diff --git a/src/gui/opengl/qopengltextureglyphcache_p.h b/src/gui/opengl/qopengltextureglyphcache_p.h
index 598cb00ee5..aed128cf9e 100644
--- a/src/gui/opengl/qopengltextureglyphcache_p.h
+++ b/src/gui/opengl/qopengltextureglyphcache_p.h
@@ -139,7 +139,7 @@ public:
 
     inline void setPaintEnginePrivate(QOpenGL2PaintEngineExPrivate *p) { pex = p; }
 
-    inline const QOpenGLContextGroup *contextGroup() const { return m_textureResource ? m_textureResource->group() : 0; }
+    inline const QOpenGLContextGroup *contextGroup() const { return m_textureResource ? m_textureResource->group() : nullptr; }
 
     inline int serialNumber() const { return m_serialNumber; }
 
diff --git a/src/gui/opengl/qopengltexturehelper_p.h b/src/gui/opengl/qopengltexturehelper_p.h
index 00f6f9e5aa..62d0125daf 100644
--- a/src/gui/opengl/qopengltexturehelper_p.h
+++ b/src/gui/opengl/qopengltexturehelper_p.h
@@ -167,7 +167,7 @@ public:
 
     inline void glTextureSubImage3D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level, GLint xoffset, GLint yoffset, GLint zoffset,
                                     GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type,
-                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = 0)
+                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -181,7 +181,7 @@ public:
 
     inline void glTextureSubImage2D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level, GLint xoffset, GLint yoffset,
                                     GLsizei width, GLsizei height, GLenum format, GLenum type,
-                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = 0)
+                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -195,7 +195,7 @@ public:
 
     inline void glTextureSubImage1D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level, GLint xoffset,
                                     GLsizei width, GLenum format, GLenum type,
-                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = 0)
+                                    const GLvoid *pixels, const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -222,7 +222,7 @@ public:
     inline void glCompressedTextureSubImage1D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level,
                                               GLint xoffset, GLsizei width,
                                               GLenum format, GLsizei imageSize, const GLvoid *bits,
-                                              const QOpenGLPixelTransferOptions * const options = 0)
+                                              const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -238,7 +238,7 @@ public:
                                               GLint xoffset, GLint yoffset,
                                               GLsizei width, GLsizei height,
                                               GLenum format, GLsizei imageSize, const GLvoid *bits,
-                                              const QOpenGLPixelTransferOptions * const options = 0)
+                                              const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -254,7 +254,7 @@ public:
                                               GLint xoffset, GLint yoffset, GLint zoffset,
                                               GLsizei width, GLsizei height, GLsizei depth,
                                               GLenum format, GLsizei imageSize, const GLvoid *bits,
-                                              const QOpenGLPixelTransferOptions * const options = 0)
+                                              const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -269,7 +269,7 @@ public:
     inline void glCompressedTextureImage1D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level,
                                            GLenum internalFormat, GLsizei width,
                                            GLint border, GLsizei imageSize, const GLvoid *bits,
-                                           const QOpenGLPixelTransferOptions * const options = 0)
+                                           const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
@@ -284,7 +284,7 @@ public:
     inline void glCompressedTextureImage2D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level,
                                            GLenum internalFormat, GLsizei width, GLsizei height,
                                            GLint border, GLsizei imageSize, const GLvoid *bits,
-                                           const QOpenGLPixelTransferOptions * const options = 0)
+                                           const QOpenGLPixelTransferOptions * const options = nullptr)
 
     {
         if (options) {
@@ -300,7 +300,7 @@ public:
     inline void glCompressedTextureImage3D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level,
                                            GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth,
                                            GLint border, GLsizei imageSize, const GLvoid *bits,
-                                           const QOpenGLPixelTransferOptions * const options = 0)
+                                           const QOpenGLPixelTransferOptions * const options = nullptr)
     {
         if (options) {
             QOpenGLPixelTransferOptions oldOptions = savePixelUploadOptions();
diff --git a/src/gui/opengl/qopenglversionfunctions.h b/src/gui/opengl/qopenglversionfunctions.h
index f828e5668b..aa6e49b9ae 100644
--- a/src/gui/opengl/qopenglversionfunctions.h
+++ b/src/gui/opengl/qopenglversionfunctions.h
@@ -97,7 +97,7 @@ struct QOpenGLVersionStatus
     OpenGLStatus status;
 };
 
-inline uint qHash(const QOpenGLVersionStatus &v, uint seed = 0) Q_DECL_NOTHROW
+inline uint qHash(const QOpenGLVersionStatus &v, uint seed = 0) noexcept
 {
     return qHash(static_cast<int>(v.status * 1000)
                + v.version.first * 100 + v.version.second * 10, seed);
diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index a90abed4c0..972cf387ff 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -8,7 +8,15 @@ HEADERS += \
         painting/qbrush.h \
         painting/qcolor.h \
         painting/qcolor_p.h \
-        painting/qcolorprofile_p.h \
+        painting/qcolormatrix_p.h \
+        painting/qcolorspace.h \
+        painting/qcolorspace_p.h \
+        painting/qcolortransferfunction_p.h \
+        painting/qcolortransfertable_p.h \
+        painting/qcolortransform.h \
+        painting/qcolortransform_p.h \
+        painting/qcolortrc_p.h \
+        painting/qcolortrclut_p.h \
         painting/qcosmeticstroker_p.h \
         painting/qdatabuffer_p.h \
         painting/qdrawhelper_p.h \
@@ -17,6 +25,7 @@ HEADERS += \
         painting/qemulationpaintengine_p.h \
         painting/qfixed_p.h \
         painting/qgrayraster_p.h \
+        painting/qicc_p.h \
         painting/qmatrix.h \
         painting/qmemrotate_p.h \
         painting/qoutlinemapper_p.h \
@@ -64,12 +73,15 @@ SOURCES += \
         painting/qblittable.cpp \
         painting/qbrush.cpp \
         painting/qcolor.cpp \
-        painting/qcolorprofile.cpp \
+        painting/qcolorspace.cpp \
+        painting/qcolortransform.cpp \
+        painting/qcolortrclut.cpp \
         painting/qcompositionfunctions.cpp \
         painting/qcosmeticstroker.cpp \
         painting/qdrawhelper.cpp \
         painting/qemulationpaintengine.cpp \
         painting/qgrayraster.c \
+        painting/qicc.cpp \
         painting/qimagescale.cpp \
         painting/qmatrix.cpp \
         painting/qmemrotate.cpp \
diff --git a/src/gui/painting/qblendfunctions_p.h b/src/gui/painting/qblendfunctions_p.h
index 5ea78cdde2..080da98ec4 100644
--- a/src/gui/painting/qblendfunctions_p.h
+++ b/src/gui/painting/qblendfunctions_p.h
@@ -71,10 +71,10 @@ void qt_scale_image_16bit(uchar *destPixels, int dbpl,
     const int ix = 0x00010000 * sx;
     const int iy = 0x00010000 * sy;
 
-//     qDebug() << "scale:" << endl
-//              << " - target" << targetRect << endl
-//              << " - source" << srcRect << endl
-//              << " - clip" << clip << endl
+//     qDebug() << "scale:" << Qt::endl
+//              << " - target" << targetRect << Qt::endl
+//              << " - source" << srcRect << Qt::endl
+//              << " - clip" << clip << Qt::endl
 //              << " - sx=" << sx << " sy=" << sy << " ix=" << ix << " iy=" << iy;
 
     QRect tr = targetRect.normalized().toRect();
@@ -162,10 +162,10 @@ template <typename T> void qt_scale_image_32bit(uchar *destPixels, int dbpl,
     const int ix = 0x00010000 * sx;
     const int iy = 0x00010000 * sy;
 
-//     qDebug() << "scale:" << endl
-//              << " - target" << targetRect << endl
-//              << " - source" << srcRect << endl
-//              << " - clip" << clip << endl
+//     qDebug() << "scale:" << Qt::endl
+//              << " - target" << targetRect << Qt::endl
+//              << " - source" << srcRect << Qt::endl
+//              << " - clip" << clip << Qt::endl
 //              << " - sx=" << sx << " sy=" << sy << " ix=" << ix << " iy=" << iy;
 
     QRect tr = targetRect.normalized().toRect();
diff --git a/src/gui/painting/qbrush.cpp b/src/gui/painting/qbrush.cpp
index f56be55325..49b40aa756 100644
--- a/src/gui/painting/qbrush.cpp
+++ b/src/gui/painting/qbrush.cpp
@@ -1140,11 +1140,11 @@ QDataStream &operator>>(QDataStream &s, QBrush &b)
         if (s.version() >= QDataStream::Qt_5_5) {
             QImage img;
             s >> img;
-            b.setTextureImage(qMove(img));
+            b.setTextureImage(std::move(img));
         } else {
             QPixmap pm;
             s >> pm;
-            b.setTexture(qMove(pm));
+            b.setTexture(std::move(pm));
         }
     } else if (style == Qt::LinearGradientPattern
                || style == Qt::RadialGradientPattern
diff --git a/src/gui/painting/qbrush.h b/src/gui/painting/qbrush.h
index aee51c526d..ef8f7a18de 100644
--- a/src/gui/painting/qbrush.h
+++ b/src/gui/painting/qbrush.h
@@ -79,11 +79,9 @@ public:
 
     ~QBrush();
     QBrush &operator=(const QBrush &brush);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QBrush &operator=(QBrush &&other) Q_DECL_NOEXCEPT
+    inline QBrush &operator=(QBrush &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    inline void swap(QBrush &other) Q_DECL_NOEXCEPT
+    inline void swap(QBrush &other) noexcept
     { qSwap(d, other.d); }
 
     operator QVariant() const;
diff --git a/src/gui/painting/qcolor.cpp b/src/gui/painting/qcolor.cpp
index 07202f5b1c..174350d884 100644
--- a/src/gui/painting/qcolor.cpp
+++ b/src/gui/painting/qcolor.cpp
@@ -39,6 +39,7 @@
 
 #include "qcolor.h"
 #include "qcolor_p.h"
+#include "qfloat16.h"
 #include "qnamespace.h"
 #include "qdatastream.h"
 #include "qvariant.h"
@@ -494,6 +495,14 @@ static QStringList get_colornames()
     with this value, a pixel value will be used that is appropriate for the
     underlying pixel format in use.
 
+    \section1 The Extended RGB Color Model
+
+    The extended RGB color model, also known as the scRGB color space,
+    is the same the RGB color model except it allows values under 0.0,
+    and over 1.0. This makes it possible to represent colors that would
+    otherwise be outside the range of the RGB colorspace but still use
+    the same values for colors inside the RGB colorspace.
+
     \section1 The HSV Color Model
 
     The RGB model is hardware-oriented. Its representation is close to
@@ -603,12 +612,13 @@ static QStringList get_colornames()
 /*!
     \enum QColor::Spec
 
-    The type of color specified, either RGB, HSV, CMYK or HSL.
+    The type of color specified, either RGB, extended RGB, HSV, CMYK or HSL.
 
     \value Rgb
     \value Hsv
     \value Cmyk
     \value Hsl
+    \value ExtendedRgb
     \value Invalid
 
     \sa spec(), convertTo()
@@ -653,7 +663,7 @@ static QStringList get_colornames()
 
     \sa isValid(), {QColor#Predefined Colors}{Predefined Colors}
  */
-QColor::QColor(Qt::GlobalColor color) Q_DECL_NOTHROW
+QColor::QColor(Qt::GlobalColor color) noexcept
 {
 #define QRGB(r, g, b) \
     QRgb(((0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff)))
@@ -728,7 +738,7 @@ QColor::QColor(Qt::GlobalColor color) Q_DECL_NOTHROW
     \sa fromRgb(), isValid()
 */
 
-QColor::QColor(QRgb color) Q_DECL_NOTHROW
+QColor::QColor(QRgb color) noexcept
 {
     cspec = Rgb;
     ct.argb.alpha = 0xffff;
@@ -746,7 +756,7 @@ QColor::QColor(QRgb color) Q_DECL_NOTHROW
     \sa fromRgba64()
 */
 
-QColor::QColor(QRgba64 rgba64) Q_DECL_NOTHROW
+QColor::QColor(QRgba64 rgba64) noexcept
 {
     setRgba64(rgba64);
 }
@@ -760,7 +770,7 @@ QColor::QColor(QRgba64 rgba64) Q_DECL_NOTHROW
     becomes a valid color by accident.
 */
 
-QColor::QColor(Spec spec) Q_DECL_NOTHROW
+QColor::QColor(Spec spec) noexcept
 {
     switch (spec) {
     case Invalid:
@@ -778,6 +788,10 @@ QColor::QColor(Spec spec) Q_DECL_NOTHROW
     case Hsl:
         setHsl(0, 0, 0, 0);
         break;
+    case ExtendedRgb:
+        cspec = spec;
+        setRgbF(0, 0, 0, 0);
+        break;
     }
 }
 
@@ -933,7 +947,7 @@ bool QColor::isValidColor(const QString &name)
     \overload
     \since 5.10
 */
-bool QColor::isValidColor(QStringView name) Q_DECL_NOTHROW
+bool QColor::isValidColor(QStringView name) noexcept
 {
     return name.size() && QColor().setColorFromString(name);
 }
@@ -942,7 +956,7 @@ bool QColor::isValidColor(QStringView name) Q_DECL_NOTHROW
     \overload
     \since 5.8
 */
-bool QColor::isValidColor(QLatin1String name) Q_DECL_NOTHROW
+bool QColor::isValidColor(QLatin1String name) noexcept
 {
     return name.size() && QColor().setColorFromString(name);
 }
@@ -1211,6 +1225,17 @@ void QColor::setHsl(int h, int s, int l, int a)
     ct.ahsl.pad        = 0;
 }
 
+static inline qfloat16 &castF16(quint16 &v)
+{
+    // this works because qfloat16 internally is a quint16
+    return *reinterpret_cast<qfloat16 *>(&v);
+}
+
+static inline const qfloat16 &castF16(const quint16 &v)
+{
+    return *reinterpret_cast<const qfloat16 *>(&v);
+}
+
 /*!
     Sets the contents pointed to by \a r, \a g, \a b, and \a a, to the red,
     green, blue, and alpha-channel (transparency) components of the color's
@@ -1226,18 +1251,27 @@ void QColor::getRgbF(qreal *r, qreal *g, qreal *b, qreal *a) const
     if (!r || !g || !b)
         return;
 
-    if (cspec != Invalid && cspec != Rgb) {
+    if (cspec == Invalid)
+        return;
+
+    if (cspec != Rgb && cspec != ExtendedRgb) {
         toRgb().getRgbF(r, g, b, a);
         return;
     }
 
-    *r = ct.argb.red   / qreal(USHRT_MAX);
-    *g = ct.argb.green / qreal(USHRT_MAX);
-    *b = ct.argb.blue  / qreal(USHRT_MAX);
-
-    if (a)
-        *a = ct.argb.alpha / qreal(USHRT_MAX);
-
+    if (cspec == Rgb) {
+        *r = ct.argb.red   / qreal(USHRT_MAX);
+        *g = ct.argb.green / qreal(USHRT_MAX);
+        *b = ct.argb.blue  / qreal(USHRT_MAX);
+        if (a)
+            *a = ct.argb.alpha / qreal(USHRT_MAX);
+    }  else {
+        *r = castF16(ct.argbExtended.redF16);
+        *g = castF16(ct.argbExtended.greenF16);
+        *b = castF16(ct.argbExtended.blueF16);
+        if (a)
+            *a = castF16(ct.argbExtended.alphaF16);
+    }
 }
 
 /*!
@@ -1274,26 +1308,35 @@ void QColor::getRgb(int *r, int *g, int *b, int *a) const
     Sets the color channels of this color to \a r (red), \a g (green),
     \a b (blue) and \a a (alpha, transparency).
 
-    All values must be in the range 0.0-1.0.
+    The alpha value must be in the range 0.0-1.0.
+    If any of the other values are outside the range of 0.0-1.0 the
+    color model will be set as \c ExtendedRgb.
 
     \sa rgb(), getRgbF(), setRgb()
 */
 void QColor::setRgbF(qreal r, qreal g, qreal b, qreal a)
 {
-    if (r < qreal(0.0) || r > qreal(1.0)
-        || g < qreal(0.0) || g > qreal(1.0)
-        || b < qreal(0.0) || b > qreal(1.0)
-        || a < qreal(0.0) || a > qreal(1.0)) {
-        qWarning("QColor::setRgbF: RGB parameters out of range");
+    if (a < qreal(0.0) || a > qreal(1.0)) {
+        qWarning("QColor::setRgbF: Alpha parameter is out of range");
         invalidate();
         return;
     }
-
+    if (r < qreal(0.0) || r > qreal(1.0) ||
+        g < qreal(0.0) || g > qreal(1.0) ||
+        b < qreal(0.0) || b > qreal(1.0) || cspec == ExtendedRgb) {
+        cspec = ExtendedRgb;
+        castF16(ct.argbExtended.redF16)   = qfloat16(r);
+        castF16(ct.argbExtended.greenF16) = qfloat16(g);
+        castF16(ct.argbExtended.blueF16)  = qfloat16(b);
+        castF16(ct.argbExtended.alphaF16) = qfloat16(a);
+        ct.argbExtended.pad   = 0;
+        return;
+    }
     cspec = Rgb;
-    ct.argb.alpha = qRound(a * USHRT_MAX);
     ct.argb.red   = qRound(r * USHRT_MAX);
     ct.argb.green = qRound(g * USHRT_MAX);
     ct.argb.blue  = qRound(b * USHRT_MAX);
+    ct.argb.alpha = qRound(a * USHRT_MAX);
     ct.argb.pad   = 0;
 }
 
@@ -1330,7 +1373,7 @@ void QColor::setRgb(int r, int g, int b, int a)
     \sa setRgba(), rgb(), rgba64()
 */
 
-QRgb QColor::rgba() const Q_DECL_NOTHROW
+QRgb QColor::rgba() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().rgba();
@@ -1342,7 +1385,7 @@ QRgb QColor::rgba() const Q_DECL_NOTHROW
 
     \sa rgba(), rgb(), setRgba64()
 */
-void QColor::setRgba(QRgb rgba) Q_DECL_NOTHROW
+void QColor::setRgba(QRgb rgba) noexcept
 {
     cspec = Rgb;
     ct.argb.alpha = qAlpha(rgba) * 0x101;
@@ -1362,7 +1405,7 @@ void QColor::setRgba(QRgb rgba) Q_DECL_NOTHROW
     \sa setRgba64(), rgba(), rgb()
 */
 
-QRgba64 QColor::rgba64() const Q_DECL_NOTHROW
+QRgba64 QColor::rgba64() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().rgba64();
@@ -1376,7 +1419,7 @@ QRgba64 QColor::rgba64() const Q_DECL_NOTHROW
 
     \sa setRgba(), rgba64()
 */
-void QColor::setRgba64(QRgba64 rgba) Q_DECL_NOTHROW
+void QColor::setRgba64(QRgba64 rgba) noexcept
 {
     cspec = Rgb;
     ct.argb.alpha = rgba.alpha();
@@ -1393,7 +1436,7 @@ void QColor::setRgba64(QRgba64 rgba) Q_DECL_NOTHROW
 
     \sa getRgb(), rgba()
 */
-QRgb QColor::rgb() const Q_DECL_NOTHROW
+QRgb QColor::rgb() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().rgb();
@@ -1405,7 +1448,7 @@ QRgb QColor::rgb() const Q_DECL_NOTHROW
 
     Sets the RGB value to \a rgb. The alpha value is set to opaque.
 */
-void QColor::setRgb(QRgb rgb) Q_DECL_NOTHROW
+void QColor::setRgb(QRgb rgb) noexcept
 {
     cspec = Rgb;
     ct.argb.alpha = 0xffff;
@@ -1420,8 +1463,12 @@ void QColor::setRgb(QRgb rgb) Q_DECL_NOTHROW
 
     \sa setAlpha(), alphaF(), {QColor#Alpha-Blended Drawing}{Alpha-Blended Drawing}
 */
-int QColor::alpha() const Q_DECL_NOTHROW
-{ return ct.argb.alpha >> 8; }
+int QColor::alpha() const noexcept
+{
+    if (cspec == ExtendedRgb)
+        return qRound(qreal(castF16(ct.argbExtended.alphaF16)) * 255);
+    return ct.argb.alpha >> 8;
+}
 
 
 /*!
@@ -1434,6 +1481,11 @@ int QColor::alpha() const Q_DECL_NOTHROW
 void QColor::setAlpha(int alpha)
 {
     QCOLOR_INT_RANGE_CHECK("QColor::setAlpha", alpha);
+    if (cspec == ExtendedRgb) {
+        constexpr qreal f = qreal(1.0) / 255;
+        castF16(ct.argbExtended.alphaF16) = alpha * f;
+        return;
+    }
     ct.argb.alpha = alpha * 0x101;
 }
 
@@ -1442,8 +1494,12 @@ void QColor::setAlpha(int alpha)
 
     \sa setAlphaF(), alpha(), {QColor#Alpha-Blended Drawing}{Alpha-Blended Drawing}
 */
-qreal QColor::alphaF() const Q_DECL_NOTHROW
-{ return ct.argb.alpha / qreal(USHRT_MAX); }
+qreal QColor::alphaF() const noexcept
+{
+    if (cspec == ExtendedRgb)
+        return castF16(ct.argbExtended.alphaF16);
+    return ct.argb.alpha / qreal(USHRT_MAX);
+}
 
 /*!
     Sets the alpha of this color to \a alpha. qreal alpha is specified in the
@@ -1455,6 +1511,10 @@ qreal QColor::alphaF() const Q_DECL_NOTHROW
 void QColor::setAlphaF(qreal alpha)
 {
     QCOLOR_REAL_RANGE_CHECK("QColor::setAlphaF", alpha);
+    if (cspec == ExtendedRgb) {
+        castF16(ct.argbExtended.alphaF16) = alpha;
+        return;
+    }
     qreal tmp = alpha * USHRT_MAX;
     ct.argb.alpha = qRound(tmp);
 }
@@ -1465,7 +1525,7 @@ void QColor::setAlphaF(qreal alpha)
 
     \sa setRed(), redF(), getRgb()
 */
-int QColor::red() const Q_DECL_NOTHROW
+int QColor::red() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().red();
@@ -1492,7 +1552,7 @@ void QColor::setRed(int red)
 
     \sa setGreen(), greenF(), getRgb()
 */
-int QColor::green() const Q_DECL_NOTHROW
+int QColor::green() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().green();
@@ -1520,7 +1580,7 @@ void QColor::setGreen(int green)
 
     \sa setBlue(), blueF(), getRgb()
 */
-int QColor::blue() const Q_DECL_NOTHROW
+int QColor::blue() const noexcept
 {
     if (cspec != Invalid && cspec != Rgb)
         return toRgb().blue();
@@ -1548,27 +1608,31 @@ void QColor::setBlue(int blue)
 
     \sa setRedF(), red(), getRgbF()
 */
-qreal QColor::redF() const Q_DECL_NOTHROW
+qreal QColor::redF() const noexcept
 {
-    if (cspec != Invalid && cspec != Rgb)
-        return toRgb().redF();
-    return ct.argb.red / qreal(USHRT_MAX);
+    if (cspec == Rgb || cspec == Invalid)
+        return ct.argb.red / qreal(USHRT_MAX);
+    if (cspec == ExtendedRgb)
+        return castF16(ct.argbExtended.redF16);
+
+    return toRgb().redF();
 }
 
 
 /*!
-    Sets the red color component of this color to \a red. Float components
-    are specified in the range 0.0-1.0.
+    Sets the red color component of this color to \a red. If \a red lies outside
+    the 0.0-1.0 range, the color model will be changed to \c ExtendedRgb.
 
     \sa redF(), red(), setRgbF()
 */
 void QColor::setRedF(qreal red)
 {
-    QCOLOR_REAL_RANGE_CHECK("QColor::setRedF", red);
-    if (cspec != Rgb)
-        setRgbF(red, greenF(), blueF(), alphaF());
-    else
+    if (cspec == Rgb && red >= qreal(0.0) && red <= qreal(1.0))
         ct.argb.red = qRound(red * USHRT_MAX);
+    else if (cspec == ExtendedRgb)
+        castF16(ct.argbExtended.redF16) = red;
+    else
+        setRgbF(red, greenF(), blueF(), alphaF());
 }
 
 /*!
@@ -1576,27 +1640,31 @@ void QColor::setRedF(qreal red)
 
     \sa setGreenF(), green(), getRgbF()
 */
-qreal QColor::greenF() const Q_DECL_NOTHROW
+qreal QColor::greenF() const noexcept
 {
-    if (cspec != Invalid && cspec != Rgb)
-        return toRgb().greenF();
-    return ct.argb.green / qreal(USHRT_MAX);
+    if (cspec == Rgb || cspec == Invalid)
+        return ct.argb.green / qreal(USHRT_MAX);
+    if (cspec == ExtendedRgb)
+        return castF16(ct.argbExtended.greenF16);
+
+    return toRgb().greenF();
 }
 
 
 /*!
-    Sets the green color component of this color to \a green. Float components
-    are specified in the range 0.0-1.0.
+    Sets the green color component of this color to \a green. If \a green lies outside
+    the 0.0-1.0 range, the color model will be changed to \c ExtendedRgb.
 
     \sa greenF(), green(), setRgbF()
 */
 void QColor::setGreenF(qreal green)
 {
-    QCOLOR_REAL_RANGE_CHECK("QColor::setGreenF", green);
-    if (cspec != Rgb)
-        setRgbF(redF(), green, blueF(), alphaF());
-    else
+    if (cspec == Rgb && green >= qreal(0.0) && green <= qreal(1.0))
         ct.argb.green = qRound(green * USHRT_MAX);
+    else if (cspec == ExtendedRgb)
+        castF16(ct.argbExtended.greenF16) = green;
+    else
+        setRgbF(redF(), green, blueF(), alphaF());
 }
 
 /*!
@@ -1604,26 +1672,29 @@ void QColor::setGreenF(qreal green)
 
      \sa setBlueF(), blue(), getRgbF()
 */
-qreal QColor::blueF() const Q_DECL_NOTHROW
+qreal QColor::blueF() const noexcept
 {
-    if (cspec != Invalid && cspec != Rgb)
-        return toRgb().blueF();
-    return ct.argb.blue / qreal(USHRT_MAX);
+    if (cspec == Rgb || cspec == Invalid)
+        return ct.argb.blue / qreal(USHRT_MAX);
+    if (cspec == ExtendedRgb)
+        return castF16(ct.argbExtended.blueF16);
+
+    return toRgb().blueF();
 }
 
 /*!
-    Sets the blue color component of this color to \a blue. Float components
-    are specified in the range 0.0-1.0.
-
+    Sets the blue color component of this color to \a blue. If \a blue lies outside
+    the 0.0-1.0 range, the color model will be changed to \c ExtendedRgb.
     \sa blueF(), blue(), setRgbF()
 */
 void QColor::setBlueF(qreal blue)
 {
-    QCOLOR_REAL_RANGE_CHECK("QColor::setBlueF", blue);
-    if (cspec != Rgb)
-        setRgbF(redF(), greenF(), blue, alphaF());
-    else
+    if (cspec == Rgb && blue >= qreal(0.0) && blue <= qreal(1.0))
         ct.argb.blue = qRound(blue * USHRT_MAX);
+    else if (cspec == ExtendedRgb)
+        castF16(ct.argbExtended.blueF16) = blue;
+    else
+        setRgbF(redF(), greenF(), blue, alphaF());
 }
 
 /*!
@@ -1634,7 +1705,7 @@ void QColor::setBlueF(qreal blue)
     \sa hsvHue(), hslHue(), hueF(), getHsv(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
 
-int QColor::hue() const Q_DECL_NOTHROW
+int QColor::hue() const noexcept
 {
     return hsvHue();
 }
@@ -1644,7 +1715,7 @@ int QColor::hue() const Q_DECL_NOTHROW
 
     \sa hueF(), hslHue(), getHsv(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-int QColor::hsvHue() const Q_DECL_NOTHROW
+int QColor::hsvHue() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().hue();
@@ -1660,7 +1731,7 @@ int QColor::hsvHue() const Q_DECL_NOTHROW
     Model}
 */
 
-int QColor::saturation() const Q_DECL_NOTHROW
+int QColor::saturation() const noexcept
 {
     return hsvSaturation();
 }
@@ -1670,7 +1741,7 @@ int QColor::saturation() const Q_DECL_NOTHROW
 
     \sa saturationF(), hslSaturation(), getHsv(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-int QColor::hsvSaturation() const Q_DECL_NOTHROW
+int QColor::hsvSaturation() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().saturation();
@@ -1682,7 +1753,7 @@ int QColor::hsvSaturation() const Q_DECL_NOTHROW
 
     \sa valueF(), getHsv(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-int QColor::value() const Q_DECL_NOTHROW
+int QColor::value() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().value();
@@ -1696,7 +1767,7 @@ int QColor::value() const Q_DECL_NOTHROW
 
     \sa hsvHueF(), hslHueF(), hue(), getHsvF(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-qreal QColor::hueF() const Q_DECL_NOTHROW
+qreal QColor::hueF() const noexcept
 {
     return hsvHueF();
 }
@@ -1707,7 +1778,7 @@ qreal QColor::hueF() const Q_DECL_NOTHROW
     \sa hue(), hslHueF(), getHsvF(), {QColor#The HSV Color Model}{The HSV Color
     Model}
 */
-qreal QColor::hsvHueF() const Q_DECL_NOTHROW
+qreal QColor::hsvHueF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().hueF();
@@ -1722,7 +1793,7 @@ qreal QColor::hsvHueF() const Q_DECL_NOTHROW
     \sa hsvSaturationF(), hslSaturationF(), saturation(), getHsvF(), {QColor#The HSV Color Model}{The HSV Color
     Model}
 */
-qreal QColor::saturationF() const Q_DECL_NOTHROW
+qreal QColor::saturationF() const noexcept
 {
     return hsvSaturationF();
 }
@@ -1732,7 +1803,7 @@ qreal QColor::saturationF() const Q_DECL_NOTHROW
 
     \sa saturation(), hslSaturationF(), getHsvF(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-qreal QColor::hsvSaturationF() const Q_DECL_NOTHROW
+qreal QColor::hsvSaturationF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().saturationF();
@@ -1744,7 +1815,7 @@ qreal QColor::hsvSaturationF() const Q_DECL_NOTHROW
 
     \sa value(), getHsvF(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-qreal QColor::valueF() const Q_DECL_NOTHROW
+qreal QColor::valueF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsv)
         return toHsv().valueF();
@@ -1758,7 +1829,7 @@ qreal QColor::valueF() const Q_DECL_NOTHROW
 
     \sa hslHueF(), hsvHue(), getHsl(), {QColor#The HSL Color Model}{The HSL Color Model}
 */
-int QColor::hslHue() const Q_DECL_NOTHROW
+int QColor::hslHue() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().hslHue();
@@ -1772,7 +1843,7 @@ int QColor::hslHue() const Q_DECL_NOTHROW
 
     \sa hslSaturationF(), hsvSaturation(), getHsl(), {QColor#The HSL Color Model}{The HSL Color Model}
 */
-int QColor::hslSaturation() const Q_DECL_NOTHROW
+int QColor::hslSaturation() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().hslSaturation();
@@ -1786,7 +1857,7 @@ int QColor::hslSaturation() const Q_DECL_NOTHROW
 
     \sa lightnessF(), getHsl()
 */
-int QColor::lightness() const Q_DECL_NOTHROW
+int QColor::lightness() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().lightness();
@@ -1800,7 +1871,7 @@ int QColor::lightness() const Q_DECL_NOTHROW
 
     \sa hslHue(), hsvHueF(), getHslF()
 */
-qreal QColor::hslHueF() const Q_DECL_NOTHROW
+qreal QColor::hslHueF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().hslHueF();
@@ -1814,7 +1885,7 @@ qreal QColor::hslHueF() const Q_DECL_NOTHROW
 
     \sa hslSaturation(), hsvSaturationF(), getHslF(), {QColor#The HSL Color Model}{The HSL Color Model}
 */
-qreal QColor::hslSaturationF() const Q_DECL_NOTHROW
+qreal QColor::hslSaturationF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().hslSaturationF();
@@ -1828,7 +1899,7 @@ qreal QColor::hslSaturationF() const Q_DECL_NOTHROW
 
     \sa value(), getHslF()
 */
-qreal QColor::lightnessF() const Q_DECL_NOTHROW
+qreal QColor::lightnessF() const noexcept
 {
     if (cspec != Invalid && cspec != Hsl)
         return toHsl().lightnessF();
@@ -1840,7 +1911,7 @@ qreal QColor::lightnessF() const Q_DECL_NOTHROW
 
     \sa cyanF(), getCmyk(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-int QColor::cyan() const Q_DECL_NOTHROW
+int QColor::cyan() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().cyan();
@@ -1852,7 +1923,7 @@ int QColor::cyan() const Q_DECL_NOTHROW
 
     \sa magentaF(), getCmyk(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-int QColor::magenta() const Q_DECL_NOTHROW
+int QColor::magenta() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().magenta();
@@ -1864,7 +1935,7 @@ int QColor::magenta() const Q_DECL_NOTHROW
 
     \sa yellowF(), getCmyk(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-int QColor::yellow() const Q_DECL_NOTHROW
+int QColor::yellow() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().yellow();
@@ -1877,7 +1948,7 @@ int QColor::yellow() const Q_DECL_NOTHROW
     \sa blackF(), getCmyk(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 
 */
-int QColor::black() const Q_DECL_NOTHROW
+int QColor::black() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().black();
@@ -1889,7 +1960,7 @@ int QColor::black() const Q_DECL_NOTHROW
 
     \sa cyan(), getCmykF(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-qreal QColor::cyanF() const Q_DECL_NOTHROW
+qreal QColor::cyanF() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().cyanF();
@@ -1901,7 +1972,7 @@ qreal QColor::cyanF() const Q_DECL_NOTHROW
 
     \sa magenta(), getCmykF(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-qreal QColor::magentaF() const Q_DECL_NOTHROW
+qreal QColor::magentaF() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().magentaF();
@@ -1913,7 +1984,7 @@ qreal QColor::magentaF() const Q_DECL_NOTHROW
 
      \sa yellow(), getCmykF(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-qreal QColor::yellowF() const Q_DECL_NOTHROW
+qreal QColor::yellowF() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().yellowF();
@@ -1925,7 +1996,7 @@ qreal QColor::yellowF() const Q_DECL_NOTHROW
 
     \sa black(), getCmykF(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-qreal QColor::blackF() const Q_DECL_NOTHROW
+qreal QColor::blackF() const noexcept
 {
     if (cspec != Invalid && cspec != Cmyk)
         return toCmyk().blackF();
@@ -1933,18 +2004,43 @@ qreal QColor::blackF() const Q_DECL_NOTHROW
 }
 
 /*!
+    Create and returns an extended RGB QColor based on this color.
+    \since 5.14
+
+    \sa toRgb, convertTo()
+*/
+QColor QColor::toExtendedRgb() const noexcept
+{
+    if (!isValid() || cspec == ExtendedRgb)
+        return *this;
+    if (cspec != Rgb)
+        return toRgb().toExtendedRgb();
+
+    constexpr qreal f = qreal(1.0) / USHRT_MAX;
+    QColor color;
+    color.cspec = ExtendedRgb;
+    castF16(color.ct.argbExtended.alphaF16) = qfloat16(ct.argb.alpha * f);
+    castF16(color.ct.argbExtended.redF16)   = qfloat16(ct.argb.red   * f);
+    castF16(color.ct.argbExtended.greenF16) = qfloat16(ct.argb.green * f);
+    castF16(color.ct.argbExtended.blueF16)  = qfloat16(ct.argb.blue  * f);
+    color.ct.argbExtended.pad = 0;
+    return color;
+}
+
+/*!
     Create and returns an RGB QColor based on this color.
 
     \sa fromRgb(), convertTo(), isValid()
 */
-QColor QColor::toRgb() const Q_DECL_NOTHROW
+QColor QColor::toRgb() const noexcept
 {
     if (!isValid() || cspec == Rgb)
         return *this;
 
     QColor color;
     color.cspec = Rgb;
-    color.ct.argb.alpha = ct.argb.alpha;
+    if (cspec != ExtendedRgb)
+        color.ct.argb.alpha = ct.argb.alpha;
     color.ct.argb.pad = 0;
 
     switch (cspec) {
@@ -2066,6 +2162,12 @@ QColor QColor::toRgb() const Q_DECL_NOTHROW
             color.ct.argb.blue  = qRound((qreal(1.0) - (y * (qreal(1.0) - k) + k)) * USHRT_MAX);
             break;
         }
+    case ExtendedRgb:
+        color.ct.argb.alpha = qRound(USHRT_MAX * qreal(castF16(ct.argbExtended.alphaF16)));
+        color.ct.argb.red   = qRound(USHRT_MAX * qBound(qreal(0.0), qreal(castF16(ct.argbExtended.redF16)),   qreal(1.0)));
+        color.ct.argb.green = qRound(USHRT_MAX * qBound(qreal(0.0), qreal(castF16(ct.argbExtended.greenF16)), qreal(1.0)));
+        color.ct.argb.blue  = qRound(USHRT_MAX * qBound(qreal(0.0), qreal(castF16(ct.argbExtended.blueF16)),  qreal(1.0)));
+        break;
     default:
         break;
     }
@@ -2083,7 +2185,7 @@ QColor QColor::toRgb() const Q_DECL_NOTHROW
 
     \sa fromHsv(), convertTo(), isValid(), {QColor#The HSV Color Model}{The HSV Color Model}
 */
-QColor QColor::toHsv() const Q_DECL_NOTHROW
+QColor QColor::toHsv() const noexcept
 {
     if (!isValid() || cspec == Hsv)
         return *this;
@@ -2134,7 +2236,7 @@ QColor QColor::toHsv() const Q_DECL_NOTHROW
 
     \sa fromHsl(), convertTo(), isValid(), {QColor#The HSL Color Model}{The HSL Color Model}
 */
-QColor QColor::toHsl() const Q_DECL_NOTHROW
+QColor QColor::toHsl() const noexcept
 {
     if (!isValid() || cspec == Hsl)
         return *this;
@@ -2190,7 +2292,7 @@ QColor QColor::toHsl() const Q_DECL_NOTHROW
 
     \sa fromCmyk(), convertTo(), isValid(), {QColor#The CMYK Color Model}{The CMYK Color Model}
 */
-QColor QColor::toCmyk() const Q_DECL_NOTHROW
+QColor QColor::toCmyk() const noexcept
 {
     if (!isValid() || cspec == Cmyk)
         return *this;
@@ -2231,13 +2333,15 @@ QColor QColor::toCmyk() const Q_DECL_NOTHROW
     return color;
 }
 
-QColor QColor::convertTo(QColor::Spec colorSpec) const Q_DECL_NOTHROW
+QColor QColor::convertTo(QColor::Spec colorSpec) const noexcept
 {
     if (colorSpec == cspec)
         return *this;
     switch (colorSpec) {
     case Rgb:
         return toRgb();
+    case ExtendedRgb:
+        return toExtendedRgb();
     case Hsv:
         return toHsv();
     case Cmyk:
@@ -2262,7 +2366,7 @@ QColor QColor::convertTo(QColor::Spec colorSpec) const Q_DECL_NOTHROW
     \sa fromRgba(), fromRgbF(), toRgb(), isValid()
 */
 
-QColor QColor::fromRgb(QRgb rgb) Q_DECL_NOTHROW
+QColor QColor::fromRgb(QRgb rgb) noexcept
 {
     return fromRgb(qRed(rgb), qGreen(rgb), qBlue(rgb));
 }
@@ -2278,7 +2382,7 @@ QColor QColor::fromRgb(QRgb rgb) Q_DECL_NOTHROW
     \sa fromRgb(), fromRgba64(), isValid()
 */
 
-QColor QColor::fromRgba(QRgb rgba) Q_DECL_NOTHROW
+QColor QColor::fromRgba(QRgb rgba) noexcept
 {
     return fromRgb(qRed(rgba), qGreen(rgba), qBlue(rgba), qAlpha(rgba));
 }
@@ -2317,20 +2421,32 @@ QColor QColor::fromRgb(int r, int g, int b, int a)
     color values, \a r (red), \a g (green), \a b (blue), and \a a
     (alpha-channel, i.e. transparency).
 
-    All the values must be in the range 0.0-1.0.
+    The alpha value must be in the range 0.0-1.0.
+    If any of the other values are outside the range of 0.0-1.0 the
+    color model will be set as \c ExtendedRgb.
 
     \sa fromRgb(), fromRgba64(), toRgb(), isValid()
 */
 QColor QColor::fromRgbF(qreal r, qreal g, qreal b, qreal a)
 {
-    if (r < qreal(0.0) || r > qreal(1.0)
-        || g < qreal(0.0) || g > qreal(1.0)
-        || b < qreal(0.0) || b > qreal(1.0)
-        || a < qreal(0.0) || a > qreal(1.0)) {
-        qWarning("QColor::fromRgbF: RGB parameters out of range");
+    if (a < qreal(0.0) || a > qreal(1.0)) {
+        qWarning("QColor::fromRgbF: Alpha parameter out of range");
         return QColor();
     }
 
+    if (r < qreal(0.0) || r > qreal(1.0)
+            || g < qreal(0.0) || g > qreal(1.0)
+            || b < qreal(0.0) || b > qreal(1.0)) {
+        QColor color;
+        color.cspec = ExtendedRgb;
+        castF16(color.ct.argbExtended.alphaF16) = qfloat16(a);
+        castF16(color.ct.argbExtended.redF16)   = qfloat16(r);
+        castF16(color.ct.argbExtended.greenF16) = qfloat16(g);
+        castF16(color.ct.argbExtended.blueF16)  = qfloat16(b);
+        color.ct.argbExtended.pad   = 0;
+        return color;
+    }
+
     QColor color;
     color.cspec = Rgb;
     color.ct.argb.alpha = qRound(a * USHRT_MAX);
@@ -2351,7 +2467,7 @@ QColor QColor::fromRgbF(qreal r, qreal g, qreal b, qreal a)
 
     \sa fromRgb(), fromRgbF(), toRgb(), isValid()
 */
-QColor QColor::fromRgba64(ushort r, ushort g, ushort b, ushort a) Q_DECL_NOTHROW
+QColor QColor::fromRgba64(ushort r, ushort g, ushort b, ushort a) noexcept
 {
     QColor color;
     color.setRgba64(qRgba64(r, g, b, a));
@@ -2366,7 +2482,7 @@ QColor QColor::fromRgba64(ushort r, ushort g, ushort b, ushort a) Q_DECL_NOTHROW
 
     \sa fromRgb(), fromRgbF(), toRgb(), isValid()
 */
-QColor QColor::fromRgba64(QRgba64 rgba64) Q_DECL_NOTHROW
+QColor QColor::fromRgba64(QRgba64 rgba64) noexcept
 {
     QColor color;
     color.setRgba64(rgba64);
@@ -2714,7 +2830,7 @@ QColor QColor::fromCmykF(qreal c, qreal m, qreal y, qreal k, qreal a)
 
     \sa darker(), isValid()
 */
-QColor QColor::lighter(int factor) const Q_DECL_NOTHROW
+QColor QColor::lighter(int factor) const noexcept
 {
     if (factor <= 0)                                // invalid lightness factor
         return *this;
@@ -2759,7 +2875,7 @@ QColor QColor::lighter(int factor) const Q_DECL_NOTHROW
 
     \sa lighter(), isValid()
 */
-QColor QColor::darker(int factor) const Q_DECL_NOTHROW
+QColor QColor::darker(int factor) const noexcept
 {
     if (factor <= 0)                                // invalid darkness factor
         return *this;
@@ -2779,7 +2895,7 @@ QColor QColor::darker(int factor) const Q_DECL_NOTHROW
 
     Use lighter(\a factor) instead.
 */
-QColor QColor::light(int factor) const Q_DECL_NOTHROW
+QColor QColor::light(int factor) const noexcept
 {
     return lighter(factor);
 }
@@ -2789,7 +2905,7 @@ QColor QColor::light(int factor) const Q_DECL_NOTHROW
 
     Use darker(\a factor) instead.
 */
-QColor QColor::dark(int factor) const Q_DECL_NOTHROW
+QColor QColor::dark(int factor) const noexcept
 {
     return darker(factor);
 }
@@ -2799,7 +2915,7 @@ QColor QColor::dark(int factor) const Q_DECL_NOTHROW
 /*!
     Assigns a copy of \a color to this color, and returns a reference to it.
 */
-QColor &QColor::operator=(const QColor &color) Q_DECL_NOTHROW
+QColor &QColor::operator=(const QColor &color) noexcept
 {
     cspec = color.cspec;
     ct.argb = color.ct.argb;
@@ -2810,7 +2926,7 @@ QColor &QColor::operator=(const QColor &color) Q_DECL_NOTHROW
 /*! \overload
     Assigns a copy of \a color and returns a reference to this color.
  */
-QColor &QColor::operator=(Qt::GlobalColor color) Q_DECL_NOTHROW
+QColor &QColor::operator=(Qt::GlobalColor color) noexcept
 {
     return operator=(QColor(color));
 }
@@ -2819,7 +2935,7 @@ QColor &QColor::operator=(Qt::GlobalColor color) Q_DECL_NOTHROW
     Returns \c true if this color has the same RGB and alpha values as \a color;
     otherwise returns \c false.
 */
-bool QColor::operator==(const QColor &color) const Q_DECL_NOTHROW
+bool QColor::operator==(const QColor &color) const noexcept
 {
     if (cspec == Hsl && cspec == color.cspec) {
         return (ct.argb.alpha == color.ct.argb.alpha
@@ -2846,7 +2962,7 @@ bool QColor::operator==(const QColor &color) const Q_DECL_NOTHROW
     Returns \c true if this color has a different RGB and alpha values from
     \a color; otherwise returns \c false.
 */
-bool QColor::operator!=(const QColor &color) const Q_DECL_NOTHROW
+bool QColor::operator!=(const QColor &color) const noexcept
 { return !operator==(color); }
 
 
@@ -2863,7 +2979,7 @@ QColor::operator QVariant() const
     Marks the color as invalid and sets all components to zero (alpha is set
     to fully opaque for compatibility with Qt 3).
 */
-void QColor::invalidate() Q_DECL_NOTHROW
+void QColor::invalidate() noexcept
 {
     cspec = Invalid;
     ct.argb.alpha = USHRT_MAX;
@@ -2885,6 +3001,8 @@ QDebug operator<<(QDebug dbg, const QColor &c)
         dbg.nospace() << "QColor(Invalid)";
     else if (c.spec() == QColor::Rgb)
         dbg.nospace() << "QColor(ARGB " << c.alphaF() << ", " << c.redF() << ", " << c.greenF() << ", " << c.blueF() << ')';
+    else if (c.spec() == QColor::ExtendedRgb)
+        dbg.nospace() << "QColor(Ext. ARGB " << c.alphaF() << ", " << c.redF() << ", " << c.greenF() << ", " << c.blueF() << ')';
     else if (c.spec() == QColor::Hsv)
         dbg.nospace() << "QColor(AHSV " << c.alphaF() << ", " << c.hueF() << ", " << c.saturationF() << ", " << c.valueF() << ')';
     else if (c.spec() == QColor::Cmyk)
diff --git a/src/gui/painting/qcolor.h b/src/gui/painting/qcolor.h
index 4822612cf8..e3c267f97d 100644
--- a/src/gui/painting/qcolor.h
+++ b/src/gui/painting/qcolor.h
@@ -64,35 +64,33 @@ Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QColor &);
 class Q_GUI_EXPORT QColor
 {
 public:
-    enum Spec { Invalid, Rgb, Hsv, Cmyk, Hsl };
+    enum Spec { Invalid, Rgb, Hsv, Cmyk, Hsl, ExtendedRgb };
     enum NameFormat { HexRgb, HexArgb };
 
-    inline QColor() Q_DECL_NOTHROW;
-    QColor(Qt::GlobalColor color) Q_DECL_NOTHROW;
+    inline QColor() noexcept;
+    QColor(Qt::GlobalColor color) noexcept;
     inline QColor(int r, int g, int b, int a = 255);
-    QColor(QRgb rgb) Q_DECL_NOTHROW;
-    QColor(QRgba64 rgba64) Q_DECL_NOTHROW;
+    QColor(QRgb rgb) noexcept;
+    QColor(QRgba64 rgba64) noexcept;
 #if QT_STRINGVIEW_LEVEL < 2
     inline QColor(const QString& name);
 #endif
     explicit inline QColor(QStringView name);
     inline QColor(const char *aname) : QColor(QLatin1String(aname)) {}
     inline QColor(QLatin1String name);
-    QColor(Spec spec) Q_DECL_NOTHROW;
+    QColor(Spec spec) noexcept;
 
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-    inline QColor(const QColor &color) Q_DECL_NOTHROW; // ### Qt 6: remove all of these, the trivial ones are fine.
-# ifdef Q_COMPILER_RVALUE_REFS
-    QColor(QColor &&other) Q_DECL_NOTHROW : cspec(other.cspec), ct(other.ct) {}
-    QColor &operator=(QColor &&other) Q_DECL_NOTHROW
+    inline QColor(const QColor &color) noexcept; // ### Qt 6: remove all of these, the trivial ones are fine.
+    QColor(QColor &&other) noexcept : cspec(other.cspec), ct(other.ct) {}
+    QColor &operator=(QColor &&other) noexcept
     { cspec = other.cspec; ct = other.ct; return *this; }
-# endif
-    QColor &operator=(const QColor &) Q_DECL_NOTHROW;
+    QColor &operator=(const QColor &) noexcept;
 #endif // Qt < 6
 
-    QColor &operator=(Qt::GlobalColor color) Q_DECL_NOTHROW;
+    QColor &operator=(Qt::GlobalColor color) noexcept;
 
-    bool isValid() const Q_DECL_NOTHROW;
+    bool isValid() const noexcept;
 
     // ### Qt 6: merge overloads
     QString name() const;
@@ -106,25 +104,25 @@ public:
 
     static QStringList colorNames();
 
-    inline Spec spec() const Q_DECL_NOTHROW
+    inline Spec spec() const noexcept
     { return cspec; }
 
-    int alpha() const Q_DECL_NOTHROW;
+    int alpha() const noexcept;
     void setAlpha(int alpha);
 
-    qreal alphaF() const Q_DECL_NOTHROW;
+    qreal alphaF() const noexcept;
     void setAlphaF(qreal alpha);
 
-    int red() const Q_DECL_NOTHROW;
-    int green() const Q_DECL_NOTHROW;
-    int blue() const Q_DECL_NOTHROW;
+    int red() const noexcept;
+    int green() const noexcept;
+    int blue() const noexcept;
     void setRed(int red);
     void setGreen(int green);
     void setBlue(int blue);
 
-    qreal redF() const Q_DECL_NOTHROW;
-    qreal greenF() const Q_DECL_NOTHROW;
-    qreal blueF() const Q_DECL_NOTHROW;
+    qreal redF() const noexcept;
+    qreal greenF() const noexcept;
+    qreal blueF() const noexcept;
     void setRedF(qreal red);
     void setGreenF(qreal green);
     void setBlueF(qreal blue);
@@ -135,26 +133,26 @@ public:
     void getRgbF(qreal *r, qreal *g, qreal *b, qreal *a = nullptr) const;
     void setRgbF(qreal r, qreal g, qreal b, qreal a = 1.0);
 
-    QRgba64 rgba64() const Q_DECL_NOTHROW;
-    void setRgba64(QRgba64 rgba) Q_DECL_NOTHROW;
+    QRgba64 rgba64() const noexcept;
+    void setRgba64(QRgba64 rgba) noexcept;
 
-    QRgb rgba() const Q_DECL_NOTHROW;
-    void setRgba(QRgb rgba) Q_DECL_NOTHROW;
+    QRgb rgba() const noexcept;
+    void setRgba(QRgb rgba) noexcept;
 
-    QRgb rgb() const Q_DECL_NOTHROW;
-    void setRgb(QRgb rgb) Q_DECL_NOTHROW;
+    QRgb rgb() const noexcept;
+    void setRgb(QRgb rgb) noexcept;
 
-    int hue() const Q_DECL_NOTHROW; // 0 <= hue < 360
-    int saturation() const Q_DECL_NOTHROW;
-    int hsvHue() const Q_DECL_NOTHROW; // 0 <= hue < 360
-    int hsvSaturation() const Q_DECL_NOTHROW;
-    int value() const Q_DECL_NOTHROW;
+    int hue() const noexcept; // 0 <= hue < 360
+    int saturation() const noexcept;
+    int hsvHue() const noexcept; // 0 <= hue < 360
+    int hsvSaturation() const noexcept;
+    int value() const noexcept;
 
-    qreal hueF() const Q_DECL_NOTHROW; // 0.0 <= hueF < 360.0
-    qreal saturationF() const Q_DECL_NOTHROW;
-    qreal hsvHueF() const Q_DECL_NOTHROW; // 0.0 <= hueF < 360.0
-    qreal hsvSaturationF() const Q_DECL_NOTHROW;
-    qreal valueF() const Q_DECL_NOTHROW;
+    qreal hueF() const noexcept; // 0.0 <= hueF < 360.0
+    qreal saturationF() const noexcept;
+    qreal hsvHueF() const noexcept; // 0.0 <= hueF < 360.0
+    qreal hsvSaturationF() const noexcept;
+    qreal valueF() const noexcept;
 
     void getHsv(int *h, int *s, int *v, int *a = nullptr) const;
     void setHsv(int h, int s, int v, int a = 255);
@@ -162,15 +160,15 @@ public:
     void getHsvF(qreal *h, qreal *s, qreal *v, qreal *a = nullptr) const;
     void setHsvF(qreal h, qreal s, qreal v, qreal a = 1.0);
 
-    int cyan() const Q_DECL_NOTHROW;
-    int magenta() const Q_DECL_NOTHROW;
-    int yellow() const Q_DECL_NOTHROW;
-    int black() const Q_DECL_NOTHROW;
+    int cyan() const noexcept;
+    int magenta() const noexcept;
+    int yellow() const noexcept;
+    int black() const noexcept;
 
-    qreal cyanF() const Q_DECL_NOTHROW;
-    qreal magentaF() const Q_DECL_NOTHROW;
-    qreal yellowF() const Q_DECL_NOTHROW;
-    qreal blackF() const Q_DECL_NOTHROW;
+    qreal cyanF() const noexcept;
+    qreal magentaF() const noexcept;
+    qreal yellowF() const noexcept;
+    qreal blackF() const noexcept;
 
     void getCmyk(int *c, int *m, int *y, int *k, int *a = nullptr); // ### Qt 6: remove
     void getCmyk(int *c, int *m, int *y, int *k, int *a = nullptr) const;
@@ -180,13 +178,13 @@ public:
     void getCmykF(qreal *c, qreal *m, qreal *y, qreal *k, qreal *a = nullptr) const;
     void setCmykF(qreal c, qreal m, qreal y, qreal k, qreal a = 1.0);
 
-    int hslHue() const Q_DECL_NOTHROW; // 0 <= hue < 360
-    int hslSaturation() const Q_DECL_NOTHROW;
-    int lightness() const Q_DECL_NOTHROW;
+    int hslHue() const noexcept; // 0 <= hue < 360
+    int hslSaturation() const noexcept;
+    int lightness() const noexcept;
 
-    qreal hslHueF() const Q_DECL_NOTHROW; // 0.0 <= hueF < 360.0
-    qreal hslSaturationF() const Q_DECL_NOTHROW;
-    qreal lightnessF() const Q_DECL_NOTHROW;
+    qreal hslHueF() const noexcept; // 0.0 <= hueF < 360.0
+    qreal hslSaturationF() const noexcept;
+    qreal lightnessF() const noexcept;
 
     void getHsl(int *h, int *s, int *l, int *a = nullptr) const;
     void setHsl(int h, int s, int l, int a = 255);
@@ -194,21 +192,22 @@ public:
     void getHslF(qreal *h, qreal *s, qreal *l, qreal *a = nullptr) const;
     void setHslF(qreal h, qreal s, qreal l, qreal a = 1.0);
 
-    QColor toRgb() const Q_DECL_NOTHROW;
-    QColor toHsv() const Q_DECL_NOTHROW;
-    QColor toCmyk() const Q_DECL_NOTHROW;
-    QColor toHsl() const Q_DECL_NOTHROW;
+    QColor toRgb() const noexcept;
+    QColor toHsv() const noexcept;
+    QColor toCmyk() const noexcept;
+    QColor toHsl() const noexcept;
+    QColor toExtendedRgb() const noexcept;
 
-    Q_REQUIRED_RESULT QColor convertTo(Spec colorSpec) const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT QColor convertTo(Spec colorSpec) const noexcept;
 
-    static QColor fromRgb(QRgb rgb) Q_DECL_NOTHROW;
-    static QColor fromRgba(QRgb rgba) Q_DECL_NOTHROW;
+    static QColor fromRgb(QRgb rgb) noexcept;
+    static QColor fromRgba(QRgb rgba) noexcept;
 
     static QColor fromRgb(int r, int g, int b, int a = 255);
     static QColor fromRgbF(qreal r, qreal g, qreal b, qreal a = 1.0);
 
-    static QColor fromRgba64(ushort r, ushort g, ushort b, ushort a = USHRT_MAX) Q_DECL_NOTHROW;
-    static QColor fromRgba64(QRgba64 rgba) Q_DECL_NOTHROW;
+    static QColor fromRgba64(ushort r, ushort g, ushort b, ushort a = USHRT_MAX) noexcept;
+    static QColor fromRgba64(QRgba64 rgba) noexcept;
 
     static QColor fromHsv(int h, int s, int v, int a = 255);
     static QColor fromHsvF(qreal h, qreal s, qreal v, qreal a = 1.0);
@@ -221,27 +220,27 @@ public:
 
 #if QT_DEPRECATED_SINCE(5, 13)
     QT_DEPRECATED_X("Use QColor::lighter() instead")
-    Q_REQUIRED_RESULT QColor light(int f = 150) const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT QColor light(int f = 150) const noexcept;
     QT_DEPRECATED_X("Use QColor::darker() instead")
-    Q_REQUIRED_RESULT QColor dark(int f = 200) const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT QColor dark(int f = 200) const noexcept;
 #endif
-    Q_REQUIRED_RESULT QColor lighter(int f = 150) const Q_DECL_NOTHROW;
-    Q_REQUIRED_RESULT QColor darker(int f = 200) const Q_DECL_NOTHROW;
+    Q_REQUIRED_RESULT QColor lighter(int f = 150) const noexcept;
+    Q_REQUIRED_RESULT QColor darker(int f = 200) const noexcept;
 
-    bool operator==(const QColor &c) const Q_DECL_NOTHROW;
-    bool operator!=(const QColor &c) const Q_DECL_NOTHROW;
+    bool operator==(const QColor &c) const noexcept;
+    bool operator!=(const QColor &c) const noexcept;
 
     operator QVariant() const;
 
 #if QT_STRINGVIEW_LEVEL < 2
     static bool isValidColor(const QString &name);
 #endif
-    static bool isValidColor(QStringView) Q_DECL_NOTHROW;
-    static bool isValidColor(QLatin1String) Q_DECL_NOTHROW;
+    static bool isValidColor(QStringView) noexcept;
+    static bool isValidColor(QLatin1String) noexcept;
 
 private:
 
-    void invalidate() Q_DECL_NOTHROW;
+    void invalidate() noexcept;
     template <typename String>
     bool setColorFromString(String name);
 
@@ -275,6 +274,13 @@ private:
             ushort lightness;
             ushort pad;
         } ahsl;
+        struct {
+            ushort alphaF16;
+            ushort redF16;
+            ushort greenF16;
+            ushort blueF16;
+            ushort pad;
+        } argbExtended;
         ushort array[5];
     } ct;
 
@@ -286,7 +292,7 @@ private:
 };
 Q_DECLARE_TYPEINFO(QColor, QT_VERSION >= QT_VERSION_CHECK(6,0,0) ? Q_MOVABLE_TYPE : Q_RELOCATABLE_TYPE);
 
-inline QColor::QColor() Q_DECL_NOTHROW
+inline QColor::QColor() noexcept
 { invalidate(); }
 
 inline QColor::QColor(int r, int g, int b, int a)
@@ -304,12 +310,12 @@ inline QColor::QColor(const QString& aname)
 #endif
 
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-inline QColor::QColor(const QColor &acolor) Q_DECL_NOTHROW
+inline QColor::QColor(const QColor &acolor) noexcept
     : cspec(acolor.cspec)
 { ct.argb = acolor.ct.argb; }
 #endif
 
-inline bool QColor::isValid() const Q_DECL_NOTHROW
+inline bool QColor::isValid() const noexcept
 { return cspec != Invalid; }
 
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qcolormatrix_p.h b/src/gui/painting/qcolormatrix_p.h
new file mode 100644
index 0000000000..66db95df7e
--- /dev/null
+++ b/src/gui/painting/qcolormatrix_p.h
@@ -0,0 +1,249 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORMATRIX_H
+#define QCOLORMATRIX_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qtguiglobal.h>
+#include <QtCore/qpoint.h>
+#include <cmath>
+
+QT_BEGIN_NAMESPACE
+
+// An abstract 3 value color
+class QColorVector
+{
+public:
+    QColorVector() = default;
+    Q_DECL_CONSTEXPR QColorVector(float x, float y, float z) : x(x), y(y), z(z), _unused(0.0f) { }
+    explicit Q_DECL_CONSTEXPR QColorVector(const QPointF &chr) // from XY chromaticity
+            : x(chr.x() / chr.y())
+            , y(1.0f)
+            , z((1.0 - chr.x() - chr.y()) / chr.y())
+            , _unused(0.0f)
+    { }
+    float x; // X, x or red
+    float y; // Y, y or green
+    float z; // Z, Y or blue
+    float _unused;
+
+    friend inline bool operator==(const QColorVector &v1, const QColorVector &v2);
+    friend inline bool operator!=(const QColorVector &v1, const QColorVector &v2);
+    bool isNull() const
+    {
+        return !x && !y && !z;
+    }
+
+    static Q_DECL_CONSTEXPR QColorVector null() { return QColorVector(0.0f, 0.0f, 0.0f); }
+    static bool isValidChromaticity(const QPointF &chr)
+    {
+        if (chr.x() < qreal(0.0) || chr.x() > qreal(1.0))
+            return false;
+        if (chr.y() <= qreal(0.0) || chr.y() > qreal(1.0))
+            return false;
+        if (chr.x() + chr.y() > qreal(1.0))
+            return false;
+        return true;
+    }
+
+    // Common whitepoints:
+    static Q_DECL_CONSTEXPR QPointF D50Chromaticity() { return QPointF(0.34567, 0.35850); }
+    static Q_DECL_CONSTEXPR QPointF D65Chromaticity() { return QPointF(0.31271, 0.32902); }
+    static Q_DECL_CONSTEXPR QColorVector D50() { return QColorVector(D50Chromaticity()); }
+    static Q_DECL_CONSTEXPR QColorVector D65() { return QColorVector(D65Chromaticity()); }
+};
+
+inline bool operator==(const QColorVector &v1, const QColorVector &v2)
+{
+    return (std::abs(v1.x - v2.x) < (1.0f / 2048.0f))
+        && (std::abs(v1.y - v2.y) < (1.0f / 2048.0f))
+        && (std::abs(v1.z - v2.z) < (1.0f / 2048.0f));
+}
+
+inline bool operator!=(const QColorVector &v1, const QColorVector &v2)
+{
+    return !(v1 == v2);
+}
+
+
+// A matrix mapping 3 value colors.
+// Not using QMatrix because only floats are needed and performance is critical.
+class QColorMatrix
+{
+public:
+    // We are storing the matrix transposed as that is more convenient:
+    QColorVector r;
+    QColorVector g;
+    QColorVector b;
+
+    friend inline bool operator==(const QColorMatrix &m1, const QColorMatrix &m2);
+    friend inline bool operator!=(const QColorMatrix &m1, const QColorMatrix &m2);
+
+    bool isNull() const
+    {
+        return r.isNull() && g.isNull() && b.isNull();
+    }
+    bool isValid() const
+    {
+        // A color matrix must be invertible
+        float det = r.x * (b.z * g.y - g.z * b.y) -
+                    r.y * (b.z * g.x - g.z * b.x) +
+                    r.z * (b.y * g.x - g.y * b.x);
+        return !qFuzzyIsNull(det);
+    }
+
+    QColorMatrix inverted() const
+    {
+        float det = r.x * (b.z * g.y - g.z * b.y) -
+                    r.y * (b.z * g.x - g.z * b.x) +
+                    r.z * (b.y * g.x - g.y * b.x);
+        det = 1.0f / det;
+        QColorMatrix inv;
+        inv.r.x = (g.y * b.z - b.y * g.z) * det;
+        inv.r.y = (b.y * r.z - r.y * b.z) * det;
+        inv.r.z = (r.y * g.z - g.y * r.z) * det;
+        inv.g.x = (b.x * g.z - g.x * b.z) * det;
+        inv.g.y = (r.x * b.z - b.x * r.z) * det;
+        inv.g.z = (g.x * r.z - r.x * g.z) * det;
+        inv.b.x = (g.x * b.y - b.x * g.y) * det;
+        inv.b.y = (b.x * r.y - r.x * b.y) * det;
+        inv.b.z = (r.x * g.y - g.x * r.y) * det;
+        return inv;
+    }
+    QColorMatrix operator*(const QColorMatrix &o) const
+    {
+        QColorMatrix comb;
+        comb.r.x = r.x * o.r.x + g.x * o.r.y + b.x * o.r.z;
+        comb.g.x = r.x * o.g.x + g.x * o.g.y + b.x * o.g.z;
+        comb.b.x = r.x * o.b.x + g.x * o.b.y + b.x * o.b.z;
+
+        comb.r.y = r.y * o.r.x + g.y * o.r.y + b.y * o.r.z;
+        comb.g.y = r.y * o.g.x + g.y * o.g.y + b.y * o.g.z;
+        comb.b.y = r.y * o.b.x + g.y * o.b.y + b.y * o.b.z;
+
+        comb.r.z = r.z * o.r.x + g.z * o.r.y + b.z * o.r.z;
+        comb.g.z = r.z * o.g.x + g.z * o.g.y + b.z * o.g.z;
+        comb.b.z = r.z * o.b.x + g.z * o.b.y + b.z * o.b.z;
+        return comb;
+
+    }
+    QColorVector map(const QColorVector &c) const
+    {
+        return QColorVector { c.x * r.x + c.y * g.x + c.z * b.x,
+                              c.x * r.y + c.y * g.y + c.z * b.y,
+                              c.x * r.z + c.y * g.z + c.z * b.z };
+    }
+    QColorMatrix transposed() const
+    {
+        return QColorMatrix { { r.x, g.x, b.x },
+                              { r.y, g.y, b.y },
+                              { r.z, g.z, b.z } };
+    }
+
+    static QColorMatrix null()
+    {
+        return { QColorVector::null(), QColorVector::null(), QColorVector::null() };
+    }
+    static QColorMatrix identity()
+    {
+        return { { 1.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, { 0.0f, 0.0f, 1.0f } };
+    }
+    static QColorMatrix fromScale(QColorVector v)
+    {
+        return QColorMatrix { { v.x,  0.0f, 0.0f },
+                              { 0.0f, v.y,  0.0f },
+                              { 0.0f, 0.0f, v.z  } };
+    }
+    // These are used to recognize matrices from ICC profiles:
+    static QColorMatrix toXyzFromSRgb()
+    {
+        return QColorMatrix { { 0.4360217452f, 0.2224751115f, 0.0139281144f },
+                              { 0.3851087987f, 0.7169067264f, 0.0971015394f },
+                              { 0.1430812478f, 0.0606181994f, 0.7141585946f } };
+    }
+    static QColorMatrix toXyzFromAdobeRgb()
+    {
+        return QColorMatrix { { 0.6097189188f, 0.3111021519f, 0.0194766335f },
+                              { 0.2052682191f, 0.6256770492f, 0.0608891509f },
+                              { 0.1492247432f, 0.0632209629f, 0.7448224425f } };
+    }
+    static QColorMatrix toXyzFromDciP3D65()
+    {
+        return QColorMatrix { { 0.5150973201f, 0.2411795557f, -0.0010491034f },
+                              { 0.2919696569f, 0.6922441125f,  0.0418830328f },
+                              { 0.1571449190f, 0.0665764511f,  0.7843542695f } };
+    }
+    static QColorMatrix toXyzFromProPhotoRgb()
+    {
+        return QColorMatrix { { 0.7976672649f, 0.2880374491f, 0.0000000000f },
+                              { 0.1351922452f, 0.7118769884f, 0.0000000000f },
+                              { 0.0313525312f, 0.0000856627f, 0.8251883388f } };
+    }
+    static QColorMatrix toXyzFromBt2020()
+    {
+        return QColorMatrix { { 0.6506130099f, 0.2695676684f, -0.0018652577f },
+                              { 0.1865101457f, 0.6840794086f,  0.0172256753f },
+                              { 0.1270887405f, 0.0463530831f,  0.8098278046f } };
+    }
+};
+
+inline bool operator==(const QColorMatrix &m1, const QColorMatrix &m2)
+{
+    return (m1.r == m2.r) && (m1.g == m2.g) && (m1.b == m2.b);
+}
+
+inline bool operator!=(const QColorMatrix &m1, const QColorMatrix &m2)
+{
+    return !(m1 == m2);
+}
+
+QT_END_NAMESPACE
+
+#endif // QCOLORMATRIX_P_H
diff --git a/src/gui/painting/qcolorspace.cpp b/src/gui/painting/qcolorspace.cpp
new file mode 100644
index 0000000000..c98c31fe05
--- /dev/null
+++ b/src/gui/painting/qcolorspace.cpp
@@ -0,0 +1,742 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcolorspace.h"
+#include "qcolorspace_p.h"
+
+#include "qcolortransform.h"
+#include "qcolormatrix_p.h"
+#include "qcolortransferfunction_p.h"
+#include "qcolortransform_p.h"
+#include "qicc_p.h"
+
+#include <qmath.h>
+#include <qtransform.h>
+
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QColorSpacePrimaries::QColorSpacePrimaries(QColorSpace::Gamut gamut)
+{
+    switch (gamut) {
+    case QColorSpace::Gamut::SRgb:
+        redPoint   = QPointF(0.640, 0.330);
+        greenPoint = QPointF(0.300, 0.600);
+        bluePoint  = QPointF(0.150, 0.060);
+        whitePoint = QColorVector::D65Chromaticity();
+        break;
+    case QColorSpace::Gamut::DciP3D65:
+        redPoint   = QPointF(0.680, 0.320);
+        greenPoint = QPointF(0.265, 0.690);
+        bluePoint  = QPointF(0.150, 0.060);
+        whitePoint = QColorVector::D65Chromaticity();
+        break;
+    case QColorSpace::Gamut::Bt2020:
+        redPoint   = QPointF(0.708, 0.292);
+        greenPoint = QPointF(0.190, 0.797);
+        bluePoint  = QPointF(0.131, 0.046);
+        whitePoint = QColorVector::D65Chromaticity();
+        break;
+    case QColorSpace::Gamut::AdobeRgb:
+        redPoint   = QPointF(0.640, 0.330);
+        greenPoint = QPointF(0.210, 0.710);
+        bluePoint  = QPointF(0.150, 0.060);
+        whitePoint = QColorVector::D65Chromaticity();
+        break;
+    case QColorSpace::Gamut::ProPhotoRgb:
+        redPoint   = QPointF(0.7347, 0.2653);
+        greenPoint = QPointF(0.1596, 0.8404);
+        bluePoint  = QPointF(0.0366, 0.0001);
+        whitePoint = QColorVector::D50Chromaticity();
+        break;
+    default:
+        Q_UNREACHABLE();
+    }
+}
+
+bool QColorSpacePrimaries::areValid() const
+{
+    if (!QColorVector::isValidChromaticity(redPoint))
+        return false;
+    if (!QColorVector::isValidChromaticity(greenPoint))
+        return false;
+    if (!QColorVector::isValidChromaticity(bluePoint))
+        return false;
+    if (!QColorVector::isValidChromaticity(whitePoint))
+        return false;
+    return true;
+}
+
+QColorMatrix QColorSpacePrimaries::toXyzMatrix() const
+{
+    // This converts to XYZ in some undefined scale.
+    QColorMatrix toXyz = { QColorVector(redPoint),
+                           QColorVector(greenPoint),
+                           QColorVector(bluePoint) };
+
+    // Since the white point should be (1.0, 1.0, 1.0) in the
+    // input, we can figure out the scale by using the
+    // inverse conversion on the white point.
+    QColorVector wXyz(whitePoint);
+    QColorVector whiteScale = toXyz.inverted().map(wXyz);
+
+    // Now we have scaled conversion to XYZ relative to the given whitepoint
+    toXyz = toXyz * QColorMatrix::fromScale(whiteScale);
+
+    // But we want a conversion to XYZ relative to D50
+    QColorVector wXyzD50 = QColorVector::D50();
+
+    if (wXyz != wXyzD50) {
+        // Do chromatic adaptation to map our white point to XYZ D50.
+
+        // The Bradford method chromatic adaptation matrix:
+        QColorMatrix abrad = { {  0.8951f, -0.7502f,  0.0389f },
+                               {  0.2664f,  1.7135f, -0.0685f },
+                               { -0.1614f,  0.0367f,  1.0296f } };
+        QColorMatrix abradinv = { {  0.9869929f, 0.4323053f, -0.0085287f },
+                                  { -0.1470543f, 0.5183603f,  0.0400428f },
+                                  {  0.1599627f, 0.0492912f,  0.9684867f } };
+
+        QColorVector srcCone = abrad.map(wXyz);
+        QColorVector dstCone = abrad.map(wXyzD50);
+
+        QColorMatrix wToD50 = { { dstCone.x / srcCone.x, 0, 0 },
+                                { 0, dstCone.y / srcCone.y, 0 },
+                                { 0, 0, dstCone.z / srcCone.z } };
+
+
+        QColorMatrix chromaticAdaptation = abradinv * (wToD50 * abrad);
+        toXyz = chromaticAdaptation * toXyz;
+    }
+
+    return toXyz;
+}
+
+QColorSpacePrivate::QColorSpacePrivate()
+        : id(QColorSpace::Unknown)
+        , gamut(QColorSpace::Gamut::Custom)
+        , transferFunction(QColorSpace::TransferFunction::Custom)
+        , gamma(0.0f)
+        , whitePoint(QColorVector::null())
+        , toXyz(QColorMatrix::null())
+{
+}
+
+QColorSpacePrivate::QColorSpacePrivate(QColorSpace::ColorSpaceId colorSpaceId)
+        : id(colorSpaceId)
+{
+    switch (colorSpaceId) {
+    case QColorSpace::Undefined:
+        gamut = QColorSpace::Gamut::Custom;
+        transferFunction = QColorSpace::TransferFunction::Custom;
+        gamma = 0.0f;
+        description = QStringLiteral("Undefined");
+        break;
+    case QColorSpace::SRgb:
+        gamut = QColorSpace::Gamut::SRgb;
+        transferFunction = QColorSpace::TransferFunction::SRgb;
+        gamma = 2.31f; // ?
+        description = QStringLiteral("sRGB");
+        break;
+    case QColorSpace::SRgbLinear:
+        gamut = QColorSpace::Gamut::SRgb;
+        transferFunction = QColorSpace::TransferFunction::Linear;
+        gamma = 1.0f;
+        description = QStringLiteral("Linear sRGB");
+        break;
+    case QColorSpace::AdobeRgb:
+        gamut = QColorSpace::Gamut::AdobeRgb;
+        transferFunction = QColorSpace::TransferFunction::Gamma;
+        gamma = 2.19921875f; // Not quite 2.2, see https://www.adobe.com/digitalimag/pdfs/AdobeRGB1998.pdf
+        description = QStringLiteral("Adobe RGB");
+        break;
+    case QColorSpace::DisplayP3:
+        gamut = QColorSpace::Gamut::DciP3D65;
+        transferFunction = QColorSpace::TransferFunction::SRgb;
+        gamma = 2.31f; // ?
+        description = QStringLiteral("Display P3");
+        break;
+    case QColorSpace::ProPhotoRgb:
+        gamut = QColorSpace::Gamut::ProPhotoRgb;
+        transferFunction = QColorSpace::TransferFunction::ProPhotoRgb;
+        gamma = 1.8f;
+        description = QStringLiteral("ProPhoto RGB");
+        break;
+    case QColorSpace::Bt2020:
+        gamut = QColorSpace::Gamut::Bt2020;
+        transferFunction = QColorSpace::TransferFunction::Bt2020;
+        gamma = 2.1f; // ?
+        description = QStringLiteral("BT.2020");
+        break;
+    case QColorSpace::Unknown:
+        qWarning("Can not create an unknown color space");
+        Q_FALLTHROUGH();
+    default:
+        Q_UNREACHABLE();
+    }
+    initialize();
+}
+
+QColorSpacePrivate::QColorSpacePrivate(QColorSpace::Gamut gamut, QColorSpace::TransferFunction fun, float gamma)
+        : gamut(gamut)
+        , transferFunction(fun)
+        , gamma(gamma)
+{
+    if (!identifyColorSpace())
+        id = QColorSpace::Unknown;
+    initialize();
+}
+
+QColorSpacePrivate::QColorSpacePrivate(const QColorSpacePrimaries &primaries,
+                                       QColorSpace::TransferFunction fun,
+                                       float gamma)
+        : gamut(QColorSpace::Gamut::Custom)
+        , transferFunction(fun)
+        , gamma(gamma)
+{
+    Q_ASSERT(primaries.areValid());
+    toXyz = primaries.toXyzMatrix();
+    whitePoint = QColorVector(primaries.whitePoint);
+    if (!identifyColorSpace())
+        id = QColorSpace::Unknown;
+    setTransferFunction();
+}
+
+bool QColorSpacePrivate::identifyColorSpace()
+{
+    switch (gamut) {
+    case QColorSpace::Gamut::SRgb:
+        if (transferFunction == QColorSpace::TransferFunction::SRgb) {
+            id = QColorSpace::SRgb;
+            description = QStringLiteral("sRGB");
+            return true;
+        }
+        if (transferFunction == QColorSpace::TransferFunction::Linear) {
+            id = QColorSpace::SRgbLinear;
+            description = QStringLiteral("Linear sRGB");
+            return true;
+        }
+        break;
+    case QColorSpace::Gamut::AdobeRgb:
+        if (transferFunction == QColorSpace::TransferFunction::Gamma) {
+            if (qAbs(gamma - 2.19921875f) < (1/1024.0f)) {
+                id = QColorSpace::AdobeRgb;
+                description = QStringLiteral("Adobe RGB");
+                return true;
+            }
+        }
+        break;
+    case QColorSpace::Gamut::DciP3D65:
+        if (transferFunction == QColorSpace::TransferFunction::SRgb) {
+            id = QColorSpace::DisplayP3;
+            description = QStringLiteral("Display P3");
+            return true;
+        }
+        break;
+    case QColorSpace::Gamut::ProPhotoRgb:
+        if (transferFunction == QColorSpace::TransferFunction::ProPhotoRgb) {
+            id = QColorSpace::ProPhotoRgb;
+            description = QStringLiteral("ProPhoto RGB");
+            return true;
+        }
+        if (transferFunction == QColorSpace::TransferFunction::Gamma) {
+            // ProPhoto RGB's curve is effectively gamma 1.8 for 8bit precision.
+            if (qAbs(gamma - 1.8f) < (1/1024.0f)) {
+                id = QColorSpace::ProPhotoRgb;
+                description = QStringLiteral("ProPhoto RGB");
+                return true;
+            }
+        }
+        break;
+    case QColorSpace::Gamut::Bt2020:
+        if (transferFunction == QColorSpace::TransferFunction::Bt2020) {
+            id = QColorSpace::Bt2020;
+            description = QStringLiteral("BT.2020");
+            return true;
+        }
+        break;
+    default:
+        break;
+    }
+    return false;
+}
+
+void QColorSpacePrivate::initialize()
+{
+    setToXyzMatrix();
+    setTransferFunction();
+}
+
+void QColorSpacePrivate::setToXyzMatrix()
+{
+    if (gamut == QColorSpace::Gamut::Custom) {
+        toXyz = QColorMatrix::null();
+        whitePoint = QColorVector::D50();
+        return;
+    }
+    QColorSpacePrimaries primaries(gamut);
+    toXyz = primaries.toXyzMatrix();
+    whitePoint = QColorVector(primaries.whitePoint);
+}
+
+void QColorSpacePrivate::setTransferFunction()
+{
+    switch (transferFunction) {
+    case QColorSpace::TransferFunction::Linear:
+        trc[0].m_type = QColorTrc::Type::Function;
+        trc[0].m_fun = QColorTransferFunction();
+        break;
+    case QColorSpace::TransferFunction::Gamma:
+        trc[0].m_type = QColorTrc::Type::Function;
+        trc[0].m_fun = QColorTransferFunction::fromGamma(gamma);
+        break;
+    case QColorSpace::TransferFunction::SRgb:
+        trc[0].m_type = QColorTrc::Type::Function;
+        trc[0].m_fun = QColorTransferFunction::fromSRgb();
+        break;
+    case QColorSpace::TransferFunction::ProPhotoRgb:
+        trc[0].m_type = QColorTrc::Type::Function;
+        trc[0].m_fun = QColorTransferFunction::fromProPhotoRgb();
+        break;
+    case QColorSpace::TransferFunction::Bt2020:
+        trc[0].m_type = QColorTrc::Type::Function;
+        trc[0].m_fun = QColorTransferFunction::fromBt2020();
+        break;
+    case QColorSpace::TransferFunction::Custom:
+        break;
+    default:
+        Q_UNREACHABLE();
+        break;
+    }
+    trc[1] = trc[0];
+    trc[2] = trc[0];
+}
+
+QColorTransform QColorSpacePrivate::transformationToColorSpace(const QColorSpacePrivate *out) const
+{
+    Q_ASSERT(out);
+    QColorTransform combined;
+    combined.d_ptr.reset(new QColorTransformPrivate);
+    combined.d_ptr->colorSpaceIn = this;
+    combined.d_ptr->colorSpaceOut = out;
+    combined.d_ptr->colorMatrix = out->toXyz.inverted() * toXyz;
+    return combined;
+}
+
+/*!
+    \class QColorSpace
+    \brief The QColorSpace class provides a color space abstraction.
+    \since 5.14
+
+    \ingroup painting
+    \ingroup appearance
+    \inmodule QtGui
+
+    Color values can be interpreted in different ways, and based on the interpretation
+    can live in different spaces. We call this \e {color spaces}.
+
+    QColorSpace provides access to creating several predefined color spaces and
+    can generate QColorTransforms for converting colors from one color space to
+    another.
+
+    QColorSpace can also represent color spaces defined by ICC profiles or embedded
+    in images, that do not otherwise fit the predefined color spaces.
+
+    A color space can generally speaking be conceived as a combination of a transfer
+    function and a gamut. The gamut defines which colors the color space can represent.
+    A color space that can represent a wider range of colors is also known as a
+    wide-gamut color space. The gamut is defined by three primary colors that represent
+    exactly how red, green, and blue look in this particular color space, and a white
+    color that represents where and how bright pure white is.
+
+    The transfer function or gamma curve determines how each component in the
+    color space is encoded. These are used because human perception does not operate
+    linearly, and the transfer functions try to ensure that colors will seem evenly
+    spaced to human eyes.
+*/
+
+
+/*!
+    \enum QColorSpace::ColorSpaceId
+
+    Predefined color spaces.
+
+    \value Undefined An empty, invalid or unsupported color space.
+    \value Unknown A valid color space that doesn't match any of the predefined color spaces.
+    \value SRgb The sRGB color space, which Qt operates in by default. It is a close approximation
+    of how most classic monitors operate, and a mode most software and hardware support.
+    \l{http://www.color.org/chardata/rgb/srgb.xalter}{ICC registration of sRGB}.
+    \value SRgbLinear The sRGB color space with linear gamma. Useful for gamma-corrected blending.
+    \value AdobeRgb The Adobe RGB color space is a classic wide-gamut color space, using a gamma of 2.2.
+    \l{http://www.color.org/chardata/rgb/adobergb.xalter}{ICC registration of Adobe RGB (1998)}
+    \value DisplayP3 A color-space using the primaries of DCI-P3, but with the whitepoint and transfer
+    function of sRGB. Common in modern wide-gamut screens.
+    \l{http://www.color.org/chardata/rgb/DCIP3.xalter}{ICC registration of DCI-P3}
+    \value ProPhotoRgb The Pro Photo RGB color space, also known as ROMM RGB is a very wide gamut color space.
+    \l{http://www.color.org/chardata/rgb/rommrgb.xalter}{ICC registration of ROMM RGB}
+    \value Bt2020 BT.2020 also known as Rec.2020 is the color space of HDR TVs.
+    \l{http://www.color.org/chardata/rgb/BT2020.xalter}{ICC registration of BT.2020}
+*/
+
+/*!
+    \enum QColorSpace::Gamut
+
+    Predefined gamuts, or sets of primary colors.
+
+    \value Custom The gamut is undefined or does not match any predefined sets.
+    \value SRgb The sRGB gamut
+    \value AdobeRgb The Adobe RGB gamut
+    \value DciP3D65 The DCI-P3 gamut with the D65 whitepoint
+    \value ProPhotoRgb The ProPhoto RGB gamut with the D50 whitepoint
+    \value Bt2020 The BT.2020 gamut
+*/
+
+/*!
+    \enum QColorSpace::TransferFunction
+
+    Predefined transfer functions or gamma curves.
+
+    \value Custom The custom or null transfer function
+    \value Linear The linear transfer functions
+    \value Gamma A transfer function that is a real gamma curve based on the value of gamma()
+    \value SRgb The sRGB transfer function, composed of linear and gamma parts
+    \value ProPhotoRgb The ProPhoto RGB transfer function, composed of linear and gamma parts
+    \value Bt2020 The BT.2020 transfer function, composed of linear and gamma parts
+*/
+
+/*!
+    Creates a new colorspace object that represents \a colorSpaceId.
+ */
+QColorSpace::QColorSpace(QColorSpace::ColorSpaceId colorSpaceId)
+{
+    static QExplicitlySharedDataPointer<QColorSpacePrivate> predefinedColorspacePrivates[QColorSpace::Bt2020];
+    if (colorSpaceId <= QColorSpace::Unknown) {
+        if (!predefinedColorspacePrivates[0])
+            predefinedColorspacePrivates[0] = new QColorSpacePrivate(QColorSpace::Undefined);
+        d_ptr = predefinedColorspacePrivates[0]; // unknown and undefined both returns the static undefined colorspace.
+    } else {
+        if (!predefinedColorspacePrivates[colorSpaceId - 1])
+            predefinedColorspacePrivates[colorSpaceId - 1] = new QColorSpacePrivate(colorSpaceId);
+        d_ptr = predefinedColorspacePrivates[colorSpaceId - 1];
+    }
+
+    Q_ASSERT(colorSpaceId == QColorSpace::Undefined || isValid());
+}
+
+/*!
+    Creates a custom color space with the gamut \a gamut, using the transfer function \a fun and
+    optionally \a gamma.
+ */
+QColorSpace::QColorSpace(QColorSpace::Gamut gamut, QColorSpace::TransferFunction fun, float gamma)
+        : d_ptr(new QColorSpacePrivate(gamut, fun, gamma))
+{
+}
+
+/*!
+    Creates a custom color space with the gamut \a gamut, using a gamma transfer function of
+    \a gamma.
+ */
+QColorSpace::QColorSpace(QColorSpace::Gamut gamut, float gamma)
+        : d_ptr(new QColorSpacePrivate(gamut, TransferFunction::Gamma, gamma))
+{
+}
+
+/*!
+    Creates a custom colorspace with a gamut based on the chromaticities of the primary colors \a whitePoint,
+    \a redPoint, \a greenPoint and \a bluePoint, and using the transfer function \a fun and optionally \a gamma.
+ */
+QColorSpace::QColorSpace(const QPointF &whitePoint, const QPointF &redPoint,
+                         const QPointF &greenPoint, const QPointF &bluePoint,
+                         QColorSpace::TransferFunction fun, float gamma)
+{
+    QColorSpacePrimaries primaries(whitePoint, redPoint, greenPoint, bluePoint);
+    if (!primaries.areValid()) {
+        qWarning() << "QColorSpace attempted constructed from invalid primaries:" << whitePoint << redPoint << greenPoint << bluePoint;
+        d_ptr = QColorSpace(QColorSpace::Undefined).d_ptr;
+        return;
+    }
+    d_ptr = new QColorSpacePrivate(primaries, fun, gamma);
+}
+
+QColorSpace::~QColorSpace()
+{
+}
+
+QColorSpace::QColorSpace(QColorSpace &&colorSpace)
+        : d_ptr(std::move(colorSpace.d_ptr))
+{
+}
+
+QColorSpace::QColorSpace(const QColorSpace &colorSpace)
+        : d_ptr(colorSpace.d_ptr)
+{
+}
+
+QColorSpace &QColorSpace::operator=(QColorSpace &&colorSpace)
+{
+    d_ptr = std::move(colorSpace.d_ptr);
+    return *this;
+}
+
+QColorSpace &QColorSpace::operator=(const QColorSpace &colorSpace)
+{
+    d_ptr = colorSpace.d_ptr;
+    return *this;
+}
+
+/*!
+    Returns the id of the predefined color space this object
+    represents or \c Unknown if it doesn't match any of them.
+*/
+QColorSpace::ColorSpaceId QColorSpace::colorSpaceId() const noexcept
+{
+    return d_ptr->id;
+}
+
+/*!
+    Returns the predefined gamut of the color space
+    or \c Gamut::Custom if it doesn't match any of them.
+*/
+QColorSpace::Gamut QColorSpace::gamut() const noexcept
+{
+    return d_ptr->gamut;
+}
+
+/*!
+    Returns the predefined transfer function of the color space
+    or \c TransferFunction::Custom if it doesn't match any of them.
+
+    \sa gamma()
+*/
+QColorSpace::TransferFunction QColorSpace::transferFunction() const noexcept
+{
+    return d_ptr->transferFunction;
+}
+
+/*!
+    Returns the gamma value of color spaces with \c TransferFunction::Gamma,
+    an approximate gamma value for other predefined color spaces, or
+    0.0 if no approximate gamma is known.
+
+    \sa transferFunction()
+*/
+float QColorSpace::gamma() const noexcept
+{
+    return d_ptr->gamma;
+}
+
+/*!
+    Returns an ICC profile representing the color space.
+
+    If the color space was generated from an ICC profile, that profile
+    is returned, otherwise one is generated.
+
+    \note Even invalid color spaces may return the ICC profile if they
+    were generated from one, to allow applications to implement wider
+    support themselves.
+
+    \sa fromIccProfile()
+*/
+QByteArray QColorSpace::iccProfile() const
+{
+    if (!d_ptr->iccProfile.isEmpty())
+        return d_ptr->iccProfile;
+    if (!isValid())
+        return QByteArray();
+    return QIcc::toIccProfile(*this);
+}
+
+/*!
+    Creates a QColorSpace from ICC profile \a iccProfile.
+
+    \note Not all ICC profiles are supported. QColorSpace only supports
+    RGB-XYZ ICC profiles that are three-component matrix-based.
+
+    If the ICC profile is not supported an invalid QColorSpace is returned
+    where you can still read the original ICC profile using iccProfile().
+
+    \sa iccProfile()
+*/
+QColorSpace QColorSpace::fromIccProfile(const QByteArray &iccProfile)
+{
+    QColorSpace colorSpace;
+    if (QIcc::fromIccProfile(iccProfile, &colorSpace))
+        return colorSpace;
+    colorSpace.d_ptr->id = QColorSpace::Undefined;
+    colorSpace.d_ptr->iccProfile = iccProfile;
+    return colorSpace;
+}
+
+/*!
+    Returns \c true if the color space is valid.
+*/
+bool QColorSpace::isValid() const noexcept
+{
+    return d_ptr->id != QColorSpace::Undefined && d_ptr->toXyz.isValid()
+        && d_ptr->trc[0].isValid() && d_ptr->trc[1].isValid() && d_ptr->trc[2].isValid();
+}
+
+/*!
+    \relates QColorSpace
+    Returns \c true if colorspace \a colorSpace1 is equal to colorspace \a colorSpace2;
+    otherwise returns \c false
+*/
+bool operator==(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2)
+{
+    if (colorSpace1.d_ptr == colorSpace2.d_ptr)
+        return true;
+
+    if (colorSpace1.colorSpaceId() == QColorSpace::Undefined && colorSpace2.colorSpaceId() == QColorSpace::Undefined)
+        return colorSpace1.d_ptr->iccProfile == colorSpace2.d_ptr->iccProfile;
+
+    if (colorSpace1.colorSpaceId() != QColorSpace::Unknown && colorSpace2.colorSpaceId() != QColorSpace::Unknown)
+        return colorSpace1.colorSpaceId() == colorSpace2.colorSpaceId();
+
+    if (colorSpace1.gamut() != QColorSpace::Gamut::Custom && colorSpace2.gamut() != QColorSpace::Gamut::Custom) {
+        if (colorSpace1.gamut() != colorSpace2.gamut())
+            return false;
+    } else {
+        if (colorSpace1.d_ptr->toXyz != colorSpace2.d_ptr->toXyz)
+            return false;
+    }
+
+    if (colorSpace1.transferFunction() != QColorSpace::TransferFunction::Custom &&
+            colorSpace2.transferFunction() != QColorSpace::TransferFunction::Custom) {
+        if (colorSpace1.transferFunction() != colorSpace2.transferFunction())
+            return false;
+        if (colorSpace1.transferFunction() == QColorSpace::TransferFunction::Gamma)
+            return colorSpace1.gamma() == colorSpace2.gamma();
+        return true;
+    }
+
+    if (colorSpace1.d_ptr->trc[0] != colorSpace2.d_ptr->trc[0] ||
+        colorSpace1.d_ptr->trc[1] != colorSpace2.d_ptr->trc[1] ||
+        colorSpace1.d_ptr->trc[2] != colorSpace2.d_ptr->trc[2])
+        return false;
+
+    return true;
+}
+
+/*!
+    \fn bool operator!=(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2)
+    \relates QColorSpace
+
+    Returns \c true if colorspace \a colorspace1 is not equal to colorspace \a colorspace2;
+    otherwise returns \c false
+*/
+
+/*!
+    Generates and returns a color space transformation from this color space to
+    \a colorspace.
+*/
+QColorTransform QColorSpace::transformationToColorSpace(const QColorSpace &colorspace) const
+{
+    if (!isValid() || !colorspace.isValid())
+        return QColorTransform();
+
+    return d_ptr->transformationToColorSpace(colorspace.d_ptr.constData());
+}
+
+/*!
+    \internal
+*/
+QColorSpacePrivate *QColorSpace::d_func()
+{
+    d_ptr.detach();
+    return d_ptr.data();
+}
+
+/*!
+    \fn const QColorSpacePrivate* QColorSpacePrivate::d_func() const
+    \internal
+*/
+
+/*****************************************************************************
+  QColorSpace stream functions
+ *****************************************************************************/
+#if !defined(QT_NO_DATASTREAM)
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QColorSpace &colorSpace)
+    \relates QColorSpace
+
+    Writes the given \a colorSpace to the given \a stream as an ICC profile.
+
+    \sa QColorSpace::iccProfile(), {Serializing Qt Data Types}
+*/
+
+QDataStream &operator<<(QDataStream &s, const QColorSpace &image)
+{
+    s << image.iccProfile();
+    return s;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QColorSpace &colorSpace)
+    \relates QColorSpace
+
+    Reads a color space from the given \a stream and stores it in the given
+    \a colorSpace.
+
+    \sa QColorSpace::fromIccProfile(), {Serializing Qt Data Types}
+*/
+
+QDataStream &operator>>(QDataStream &s, QColorSpace &colorSpace)
+{
+    QByteArray iccProfile;
+    s >> iccProfile;
+    colorSpace = QColorSpace::fromIccProfile(iccProfile);
+    return s;
+}
+#endif // QT_NO_DATASTREAM
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug dbg, const QColorSpace &colorSpace)
+{
+    QDebugStateSaver saver(dbg);
+    dbg.nospace();
+    dbg << "QColorSpace(";
+    dbg << colorSpace.colorSpaceId() << ", " << colorSpace.gamut() << ", " << colorSpace.transferFunction();
+    dbg << ", gamma=" << colorSpace.gamma();
+    dbg << ')';
+    return dbg;
+}
+#endif
+
+QT_END_NAMESPACE
diff --git a/src/gui/painting/qcolorspace.h b/src/gui/painting/qcolorspace.h
new file mode 100644
index 0000000000..56676826a9
--- /dev/null
+++ b/src/gui/painting/qcolorspace.h
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORSPACE_H
+#define QCOLORSPACE_H
+
+#include <QtGui/qtguiglobal.h>
+#include <QtGui/qcolortransform.h>
+#include <QtCore/qshareddata.h>
+
+QT_BEGIN_NAMESPACE
+
+class QColorSpacePrivate;
+
+class Q_GUI_EXPORT QColorSpace
+{
+    Q_GADGET
+public:
+    enum ColorSpaceId {
+        Undefined = 0,
+        Unknown = 1,
+        SRgb,
+        SRgbLinear,
+        AdobeRgb,
+        DisplayP3,
+        ProPhotoRgb,
+        Bt2020,
+    };
+    Q_ENUM(ColorSpaceId)
+    enum class Gamut {
+        Custom = 0,
+        SRgb,
+        AdobeRgb,
+        DciP3D65,
+        ProPhotoRgb,
+        Bt2020,
+    };
+    Q_ENUM(Gamut)
+    enum class TransferFunction {
+        Custom = 0,
+        Linear,
+        Gamma,
+        SRgb,
+        ProPhotoRgb,
+        Bt2020,
+    };
+    Q_ENUM(TransferFunction)
+
+    QColorSpace(ColorSpaceId colorSpaceId = Undefined);
+    QColorSpace(Gamut gamut, TransferFunction fun, float gamma = 0.0f);
+    QColorSpace(Gamut gamut, float gamma);
+    QColorSpace(const QPointF &whitePoint, const QPointF &redPoint,
+                const QPointF &greenPoint, const QPointF &bluePoint,
+                TransferFunction fun, float gamma = 0.0f);
+    ~QColorSpace();
+
+    QColorSpace(QColorSpace &&colorSpace);
+    QColorSpace(const QColorSpace &colorSpace);
+    QColorSpace &operator=(QColorSpace &&colorSpace);
+    QColorSpace &operator=(const QColorSpace &colorSpace);
+
+    ColorSpaceId colorSpaceId() const noexcept;
+    Gamut gamut() const noexcept;
+    TransferFunction transferFunction() const noexcept;
+    float gamma() const noexcept;
+
+    bool isValid() const noexcept;
+
+    friend Q_GUI_EXPORT bool operator==(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2);
+    friend inline bool operator!=(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2);
+
+    static QColorSpace fromIccProfile(const QByteArray &iccProfile);
+    QByteArray iccProfile() const;
+
+    QColorTransform transformationToColorSpace(const QColorSpace &colorspace) const;
+
+    QColorSpacePrivate *d_func();
+    inline const QColorSpacePrivate *d_func() const { return d_ptr.constData(); }
+
+private:
+    friend class QColorSpacePrivate;
+    QExplicitlySharedDataPointer<QColorSpacePrivate> d_ptr;
+};
+
+bool Q_GUI_EXPORT operator==(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2);
+inline bool operator!=(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2)
+{
+    return !(colorSpace1 == colorSpace2);
+}
+
+// QColorSpace stream functions
+#if !defined(QT_NO_DATASTREAM)
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QColorSpace &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QColorSpace &);
+#endif
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QColorSpace &);
+#endif
+
+QT_END_NAMESPACE
+
+#endif // QCOLORSPACE_P_H
diff --git a/src/gui/painting/qcolorspace_p.h b/src/gui/painting/qcolorspace_p.h
new file mode 100644
index 0000000000..a6ab2ab5cd
--- /dev/null
+++ b/src/gui/painting/qcolorspace_p.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORSPACE_P_H
+#define QCOLORSPACE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qcolorspace.h"
+#include "qcolormatrix_p.h"
+#include "qcolortrc_p.h"
+#include "qcolortrclut_p.h"
+
+#include <QtCore/qshareddata.h>
+#include <QtCore/qpoint.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_GUI_EXPORT QColorSpacePrimaries
+{
+public:
+   QColorSpacePrimaries() = default;
+   QColorSpacePrimaries(QColorSpace::Gamut gamut);
+   QColorSpacePrimaries(QPointF whitePoint,
+                        QPointF redPoint,
+                        QPointF greenPoint,
+                        QPointF bluePoint)
+           : whitePoint(whitePoint)
+           , redPoint(redPoint)
+           , greenPoint(greenPoint)
+           , bluePoint(bluePoint)
+   { }
+
+   QColorMatrix toXyzMatrix() const;
+   bool areValid() const;
+
+   QPointF whitePoint;
+   QPointF redPoint;
+   QPointF greenPoint;
+   QPointF bluePoint;
+};
+
+class QColorSpacePrivate : public QSharedData
+{
+public:
+    QColorSpacePrivate();
+    QColorSpacePrivate(QColorSpace::ColorSpaceId colorSpaceId);
+    QColorSpacePrivate(QColorSpace::Gamut gamut, QColorSpace::TransferFunction fun, float gamma);
+    QColorSpacePrivate(const QColorSpacePrimaries &primaries, QColorSpace::TransferFunction fun, float gamma);
+    QColorSpacePrivate(const QColorSpacePrivate &other) = default;
+
+    void initialize();
+    void setToXyzMatrix();
+    void setTransferFunction();
+    bool identifyColorSpace();
+    QColorTransform transformationToColorSpace(const QColorSpacePrivate *out) const;
+
+    QColorSpace::ColorSpaceId id;
+    QColorSpace::Gamut gamut;
+    QColorSpace::TransferFunction transferFunction;
+    float gamma;
+    QColorVector whitePoint;
+
+    QColorTrc trc[3];
+    QColorMatrix toXyz;
+
+    QString description;
+    QByteArray iccProfile;
+
+    mutable QSharedPointer<QColorTrcLut> lut[3];
+    mutable QAtomicInt lutsGenerated;
+};
+
+QT_END_NAMESPACE
+
+#endif // QCOLORSPACE_P_H
diff --git a/src/gui/painting/qcolortransferfunction_p.h b/src/gui/painting/qcolortransferfunction_p.h
new file mode 100644
index 0000000000..fd7cfa2b2b
--- /dev/null
+++ b/src/gui/painting/qcolortransferfunction_p.h
@@ -0,0 +1,207 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORTRANSFERFUNCTION_P_H
+#define QCOLORTRANSFERFUNCTION_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qtguiglobal_p.h>
+
+#include <cmath>
+
+QT_BEGIN_NAMESPACE
+
+// Defines a ICC parametric curve type 4
+class Q_GUI_EXPORT QColorTransferFunction
+{
+public:
+    QColorTransferFunction() noexcept
+            : m_a(1.0f), m_b(0.0f), m_c(1.0f), m_d(0.0f), m_e(0.0f), m_f(0.0f), m_g(1.0f), m_flags(0)
+    { }
+    QColorTransferFunction(float a, float b, float c, float d, float e, float f, float g) noexcept
+            : m_a(a), m_b(b), m_c(c), m_d(d), m_e(e), m_f(f), m_g(g), m_flags(0)
+    { }
+
+    bool isGamma() const
+    {
+        updateHints();
+        return m_flags & quint32(Hints::IsGamma);
+    }
+    bool isLinear() const
+    {
+        updateHints();
+        return m_flags & quint32(Hints::IsLinear);
+    }
+    bool isSRgb() const
+    {
+        updateHints();
+        return m_flags & quint32(Hints::IsSRgb);
+    }
+
+    float apply(float x) const
+    {
+        if (x < m_d)
+            return m_c * x + m_f;
+        else
+            return std::pow(m_a * x + m_b, m_g) + m_e;
+    }
+
+    QColorTransferFunction inverted() const
+    {
+        float a, b, c, d, e, f, g;
+
+        d = m_c * m_d + m_f;
+
+        if (!qFuzzyIsNull(m_c)) {
+            c = 1.0f / m_c;
+            f = -m_f / m_c;
+        } else {
+            c = 0.0f;
+            f = 0.0f;
+        }
+
+        if (!qFuzzyIsNull(m_a) && !qFuzzyIsNull(m_g)) {
+            a = std::pow(1.0f / m_a, m_g);
+            b = -a * m_e;
+            e = -m_b / m_a;
+            g = 1.0f / m_g;
+        } else {
+            a = 0.0f;
+            b = 0.0f;
+            e = 1.0f;
+            g = 1.0f;
+        }
+
+        return QColorTransferFunction(a, b, c, d, e, f, g);
+    }
+
+    // A few predefined curves:
+    static QColorTransferFunction fromGamma(float gamma)
+    {
+        return QColorTransferFunction(1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, gamma);
+    }
+    static QColorTransferFunction fromSRgb()
+    {
+        return QColorTransferFunction(1.0f / 1.055f, 0.055f / 1.055f, 1.0f / 12.92f, 0.04045f, 0.0f, 0.0f, 2.4f);
+    }
+    static QColorTransferFunction fromBt2020()
+    {
+        return QColorTransferFunction(1.0f / 1.0993f, 0.0993f / 1.0993f, 1.0f / 4.5f, 0.08145f, 0.0f, 0.0f, 2.2f);
+    }
+    static QColorTransferFunction fromProPhotoRgb()
+    {
+        return QColorTransferFunction(1.0f, 0.0f, 1.0f / 16.0f, 16.0f / 512.0f, 0.0f, 0.0f, 1.8f);
+    }
+    bool matches(const QColorTransferFunction &o) const
+    {
+        return paramCompare(m_a, o.m_a) && paramCompare(m_b, o.m_b)
+            && paramCompare(m_c, o.m_c) && paramCompare(m_d, o.m_d)
+            && paramCompare(m_e, o.m_e) && paramCompare(m_f, o.m_f)
+            && paramCompare(m_g, o.m_g);
+    }
+    friend inline bool operator==(const QColorTransferFunction &f1, const QColorTransferFunction &f2);
+    friend inline bool operator!=(const QColorTransferFunction &f1, const QColorTransferFunction &f2);
+
+    float m_a;
+    float m_b;
+    float m_c;
+    float m_d;
+    float m_e;
+    float m_f;
+    float m_g;
+
+private:
+    static inline bool paramCompare(float p1, float p2)
+    {
+        // Much fuzzier than fuzzy compare.
+        // It tries match parameters that has been passed through a 8.8
+        // fixed point form.
+        return (qAbs(p1 - p2) <= (1.0f / 512.0f));
+    }
+
+    void updateHints() const
+    {
+        if (m_flags & quint32(Hints::Calculated))
+            return;
+        // We do not consider the case with m_d = 1.0f linear or simple,
+        // since it wouldn't be linear for applyExtended().
+        bool simple = paramCompare(m_a, 1.0f) && paramCompare(m_b, 0.0f)
+                                              && paramCompare(m_d, 0.0f)
+                                              && paramCompare(m_e, 0.0f);
+        if (simple) {
+            m_flags |= quint32(Hints::IsGamma);
+            if (qFuzzyCompare(m_g, 1.0f))
+                m_flags |= quint32(Hints::IsLinear);
+        } else {
+            if (*this == fromSRgb())
+                m_flags |= quint32(Hints::IsSRgb);
+        }
+        m_flags |= quint32(Hints::Calculated);
+    }
+    enum class Hints : quint32 {
+        Calculated = 1,
+        IsGamma = 2,
+        IsLinear = 4,
+        IsSRgb = 8
+    };
+    mutable quint32 m_flags;
+};
+
+inline bool operator==(const QColorTransferFunction &f1, const QColorTransferFunction &f2)
+{
+    return f1.matches(f2);
+}
+inline bool operator!=(const QColorTransferFunction &f1, const QColorTransferFunction &f2)
+{
+    return !f1.matches(f2);
+}
+
+QT_END_NAMESPACE
+
+#endif // QCOLORTRANSFERFUNCTION_P_H
diff --git a/src/gui/painting/qcolortransfertable_p.h b/src/gui/painting/qcolortransfertable_p.h
new file mode 100644
index 0000000000..c8b2f7bd92
--- /dev/null
+++ b/src/gui/painting/qcolortransfertable_p.h
@@ -0,0 +1,245 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORTRANSFERTABLE_P_H
+#define QCOLORTRANSFERTABLE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qtguiglobal_p.h>
+#include "qcolortransferfunction_p.h"
+
+#include <QVector>
+#include <cmath>
+
+QT_BEGIN_NAMESPACE
+
+// Defines either an ICC TRC 'curve' or a lut8/lut16 A or B table
+class Q_GUI_EXPORT QColorTransferTable
+{
+public:
+    QColorTransferTable() noexcept
+            : m_tableSize(0)
+    { }
+    QColorTransferTable(uint32_t size, const QVector<uint8_t> &table) noexcept
+            : m_tableSize(size)
+            , m_table8(table)
+    { }
+    QColorTransferTable(uint32_t size, const QVector<uint16_t> &table) noexcept
+            : m_tableSize(size)
+            , m_table16(table)
+    { }
+
+    bool isValid() const
+    {
+        if (m_tableSize < 2)
+            return false;
+
+#if !defined(QT_NO_DEBUG)
+        // The table must describe an injective curve:
+        if (!m_table8.isEmpty()) {
+            uint8_t val = 0;
+            for (uint i = 0; i < m_tableSize; ++i) {
+                Q_ASSERT(m_table8[i] >= val);
+                val = m_table8[i];
+            }
+        }
+        if (!m_table16.isEmpty()) {
+            uint16_t val = 0;
+            for (uint i = 0; i < m_tableSize; ++i) {
+                Q_ASSERT(m_table16[i] >= val);
+                val = m_table16[i];
+            }
+        }
+#endif
+        return !m_table8.isEmpty() || !m_table16.isEmpty();
+    }
+
+    float apply(float x) const
+    {
+        x = std::min(std::max(x, 0.0f), 1.0f);
+        x *= m_tableSize - 1;
+        uint32_t lo = (int)std::floor(x);
+        uint32_t hi = std::min(lo + 1, m_tableSize);
+        float frac = x - lo;
+        if (!m_table16.isEmpty())
+            return (m_table16[lo] * (1.0f - frac) + m_table16[hi] * frac) * (1.0f/65535.0f);
+        if (!m_table8.isEmpty())
+            return (m_table8[lo] * (1.0f - frac) + m_table8[hi] * frac) * (1.0f/255.0f);
+        return x;
+    }
+
+    // Apply inverse, optimized by giving a previous result a value < x.
+    float applyInverse(float x, float resultLargerThan = 0.0f) const
+    {
+        Q_ASSERT(resultLargerThan >= 0.0f && resultLargerThan <= 1.0f);
+        if (x <= 0.0f)
+            return 0.0f;
+        if (x >= 1.0f)
+            return 1.0f;
+        if (!m_table16.isEmpty()) {
+            float v = x * 65535.0f;
+            uint i = std::floor(resultLargerThan * (m_tableSize - 1)) + 1;
+            for ( ; i < m_tableSize; ++i) {
+                if (m_table16[i] > v)
+                    break;
+            }
+            if (i >= m_tableSize - 1)
+                return 1.0f;
+            float y1 = m_table16[i - 1];
+            float y2 = m_table16[i];
+            Q_ASSERT(x >= y1 && x < y2);
+            float fr = (v - y1) / (y2 - y1);
+            return (i + fr) * (1.0f / (m_tableSize - 1));
+
+        }
+        if (!m_table8.isEmpty()) {
+            float v = x * 255.0f;
+            uint i = std::floor(resultLargerThan * (m_tableSize - 1)) + 1;
+            for ( ; i < m_tableSize; ++i) {
+                if (m_table8[i] > v)
+                    break;
+            }
+            if (i >= m_tableSize - 1)
+                return 1.0f;
+            float y1 = m_table8[i - 1];
+            float y2 = m_table8[i];
+            Q_ASSERT(x >= y1 && x < y2);
+            float fr = (v - y1) / (y2 - y1);
+            return (i + fr) * (1.0f / (m_tableSize - 1));
+        }
+        return x;
+    }
+
+    bool asColorTransferFunction(QColorTransferFunction *transferFn)
+    {
+        Q_ASSERT(isValid());
+        Q_ASSERT(transferFn);
+        if (!m_table8.isEmpty() && (m_table8[0] != 0 || m_table8[m_tableSize - 1] != 255))
+            return false;
+        if (!m_table16.isEmpty() && (m_table16[0] != 0 || m_table16[m_tableSize - 1] != 65535))
+            return false;
+        if (m_tableSize == 2) {
+            *transferFn = QColorTransferFunction(); // Linear
+            return true;
+        }
+        // The following heuristics are based on those from Skia:
+        if (m_tableSize == 26 && !m_table16.isEmpty()) {
+            // code.facebook.com/posts/411525055626587/under-the-hood-improving-facebook-photos
+            if (m_table16[6] != 3062)
+                return false;
+            if (m_table16[12] != 12824)
+                return false;
+            if (m_table16[18] != 31237)
+                return false;
+            *transferFn = QColorTransferFunction::fromSRgb();
+            return true;
+        }
+        if (m_tableSize == 1024 && !m_table16.isEmpty()) {
+            // HP and Canon sRGB gamma tables:
+            if (m_table16[257] != 3366)
+                return false;
+            if (m_table16[513] != 14116)
+                return false;
+            if (m_table16[768] != 34318)
+                return false;
+            *transferFn = QColorTransferFunction::fromSRgb();
+            return true;
+        }
+        if (m_tableSize == 4096 && !m_table16.isEmpty()) {
+            // Nikon, Epson, and lcms2 sRGB gamma tables:
+            if (m_table16[515] != 960)
+                return false;
+            if (m_table16[1025] != 3342)
+                return false;
+            if (m_table16[2051] != 14079)
+                return false;
+            *transferFn = QColorTransferFunction::fromSRgb();
+            return true;
+        }
+        return false;
+    }
+    friend inline bool operator!=(const QColorTransferTable &t1, const QColorTransferTable &t2);
+    friend inline bool operator==(const QColorTransferTable &t1, const QColorTransferTable &t2);
+
+    uint32_t m_tableSize;
+    QVector<uint8_t> m_table8;
+    QVector<uint16_t> m_table16;
+};
+
+inline bool operator!=(const QColorTransferTable &t1, const QColorTransferTable &t2)
+{
+    if (t1.m_tableSize != t2.m_tableSize)
+        return true;
+    if (t1.m_table8.isEmpty() != t2.m_table8.isEmpty())
+        return true;
+    if (t1.m_table16.isEmpty() != t2.m_table16.isEmpty())
+        return true;
+    if (!t1.m_table8.isEmpty()) {
+        for (quint32 i = 0; i < t1.m_tableSize; ++i) {
+            if (t1.m_table8[i] != t2.m_table8[i])
+                return true;
+        }
+    }
+    if (!t1.m_table16.isEmpty()) {
+        for (quint32 i = 0; i < t1.m_tableSize; ++i) {
+            if (t1.m_table16[i] != t2.m_table16[i])
+                return true;
+        }
+    }
+    return false;
+}
+
+inline bool operator==(const QColorTransferTable &t1, const QColorTransferTable &t2)
+{
+    return !(t1 != t2);
+}
+
+QT_END_NAMESPACE
+
+#endif // QCOLORTRANSFERTABLE_P_H
diff --git a/src/gui/painting/qcolortransform.cpp b/src/gui/painting/qcolortransform.cpp
new file mode 100644
index 0000000000..c723e12f8a
--- /dev/null
+++ b/src/gui/painting/qcolortransform.cpp
@@ -0,0 +1,696 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qcolortransform.h"
+#include "qcolortransform_p.h"
+
+#include "qcolormatrix_p.h"
+#include "qcolorspace_p.h"
+#include "qcolortrc_p.h"
+#include "qcolortrclut_p.h"
+
+#include <QtCore/qatomic.h>
+#include <QtCore/qmath.h>
+#include <QtGui/qcolor.h>
+#include <QtGui/qtransform.h>
+#include <QtCore/private/qsimd_p.h>
+
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QColorTrcLut *lutFromTrc(const QColorTrc &trc)
+{
+    if (trc.m_type == QColorTrc::Type::Table)
+        return QColorTrcLut::fromTransferTable(trc.m_table);
+    if (trc.m_type == QColorTrc::Type::Function)
+        return QColorTrcLut::fromTransferFunction(trc.m_fun);
+    qWarning() << "TRC uninitialized";
+    return nullptr;
+}
+
+void QColorTransformPrivate::updateLutsIn() const
+{
+    if (colorSpaceIn->lutsGenerated.loadAcquire())
+        return;
+    for (int i = 0; i < 3; ++i) {
+        if (!colorSpaceIn->trc[i].isValid())
+            return;
+    }
+
+    if (colorSpaceIn->trc[0] == colorSpaceIn->trc[1] && colorSpaceIn->trc[0] == colorSpaceIn->trc[2]) {
+        colorSpaceIn->lut[0].reset(lutFromTrc(colorSpaceIn->trc[0]));
+        colorSpaceIn->lut[1] = colorSpaceIn->lut[0];
+        colorSpaceIn->lut[2] = colorSpaceIn->lut[0];
+    } else {
+        for (int i = 0; i < 3; ++i)
+            colorSpaceIn->lut[i].reset(lutFromTrc(colorSpaceIn->trc[i]));
+    }
+
+    colorSpaceIn->lutsGenerated.storeRelease(1);
+}
+
+void QColorTransformPrivate::updateLutsOut() const
+{
+    if (colorSpaceOut->lutsGenerated.loadAcquire())
+        return;
+    for (int i = 0; i < 3; ++i) {
+        if (!colorSpaceOut->trc[i].isValid())
+            return;
+    }
+
+    if (colorSpaceOut->trc[0] == colorSpaceOut->trc[1] && colorSpaceOut->trc[0] == colorSpaceOut->trc[2]) {
+        colorSpaceOut->lut[0].reset(lutFromTrc(colorSpaceOut->trc[0]));
+        colorSpaceOut->lut[1] = colorSpaceOut->lut[0];
+        colorSpaceOut->lut[2] = colorSpaceOut->lut[0];
+    } else {
+        for (int i = 0; i < 3; ++i)
+            colorSpaceOut->lut[i].reset(lutFromTrc(colorSpaceOut->trc[i]));
+    }
+
+    colorSpaceOut->lutsGenerated.storeRelease(1);
+}
+
+/*!
+    \class QColorTransform
+    \brief The QColorTransform class is a transformation between color spaces.
+    \since 5.14
+
+    \ingroup painting
+    \ingroup appearance
+    \inmodule QtGui
+
+    QColorTransform is an instantiation of a transformation between color spaces.
+    It can be applied on color and pixels to convert them from one color space to
+    another.
+
+    Setting up a QColorTransform takes some preprocessing, so keeping around
+    QColorTransforms that you need often is recommended, instead of generating
+    them on the fly.
+*/
+
+
+QColorTransform::~QColorTransform() noexcept
+{
+}
+
+/*!
+    Applies the color transformation on the QRgb value \a argb.
+
+    The input should be opaque or unpremultiplied.
+*/
+QRgb QColorTransform::map(const QRgb &argb) const
+{
+    if (!d_ptr)
+        return argb;
+    Q_D(const QColorTransform);
+    constexpr float f = 1.0f / 255.0f;
+    QColorVector c = { qRed(argb) * f, qGreen(argb) * f, qBlue(argb) * f };
+    c.x = d->colorSpaceIn->trc[0].apply(c.x);
+    c.y = d->colorSpaceIn->trc[1].apply(c.y);
+    c.z = d->colorSpaceIn->trc[2].apply(c.z);
+    c = d->colorMatrix.map(c);
+    c.x = std::max(0.0f, std::min(1.0f, c.x));
+    c.y = std::max(0.0f, std::min(1.0f, c.y));
+    c.z = std::max(0.0f, std::min(1.0f, c.z));
+    if (d->colorSpaceOut->lutsGenerated.loadAcquire()) {
+        c.x = d->colorSpaceOut->lut[0]->fromLinear(c.x);
+        c.y = d->colorSpaceOut->lut[1]->fromLinear(c.y);
+        c.z = d->colorSpaceOut->lut[2]->fromLinear(c.z);
+    } else {
+        c.x = d->colorSpaceOut->trc[0].applyInverse(c.x);
+        c.y = d->colorSpaceOut->trc[1].applyInverse(c.y);
+        c.z = d->colorSpaceOut->trc[2].applyInverse(c.z);
+    }
+
+    return qRgba(c.x * 255 + 0.5f, c.y * 255 + 0.5f, c.z * 255 + 0.5f, qAlpha(argb));
+}
+
+/*!
+    Applies the color transformation on the QRgba64 value \a rgba64.
+
+    The input should be opaque or unpremultiplied.
+*/
+QRgba64 QColorTransform::map(const QRgba64 &rgba64) const
+{
+    if (!d_ptr)
+        return rgba64;
+    Q_D(const QColorTransform);
+    constexpr float f = 1.0f / 65535.0f;
+    QColorVector c = { rgba64.red() * f, rgba64.green() * f, rgba64.blue() * f };
+    c.x = d->colorSpaceIn->trc[0].apply(c.x);
+    c.y = d->colorSpaceIn->trc[1].apply(c.y);
+    c.z = d->colorSpaceIn->trc[2].apply(c.z);
+    c = d->colorMatrix.map(c);
+    c.x = std::max(0.0f, std::min(1.0f, c.x));
+    c.y = std::max(0.0f, std::min(1.0f, c.y));
+    c.z = std::max(0.0f, std::min(1.0f, c.z));
+    if (d->colorSpaceOut->lutsGenerated.loadAcquire()) {
+        c.x = d->colorSpaceOut->lut[0]->fromLinear(c.x);
+        c.y = d->colorSpaceOut->lut[1]->fromLinear(c.y);
+        c.z = d->colorSpaceOut->lut[2]->fromLinear(c.z);
+    } else {
+        c.x = d->colorSpaceOut->trc[0].applyInverse(c.x);
+        c.y = d->colorSpaceOut->trc[1].applyInverse(c.y);
+        c.z = d->colorSpaceOut->trc[2].applyInverse(c.z);
+    }
+
+    return QRgba64::fromRgba64(c.x * 65535, c.y * 65535, c.z * 65535, rgba64.alpha());
+}
+
+/*!
+    Applies the color transformation on the QColor value \a color.
+
+*/
+QColor QColorTransform::map(const QColor &color) const
+{
+    if (!d_ptr)
+        return color;
+    Q_D(const QColorTransform);
+    QColor clr = color;
+    if (color.spec() != QColor::ExtendedRgb || color.spec() != QColor::Rgb)
+        clr = clr.toRgb();
+
+    QColorVector c = { (float)clr.redF(), (float)clr.greenF(), (float)clr.blueF() };
+    if (clr.spec() == QColor::ExtendedRgb) {
+        c.x = d->colorSpaceIn->trc[0].applyExtended(c.x);
+        c.y = d->colorSpaceIn->trc[1].applyExtended(c.y);
+        c.z = d->colorSpaceIn->trc[2].applyExtended(c.z);
+    } else {
+        c.x = d->colorSpaceIn->trc[0].apply(c.x);
+        c.y = d->colorSpaceIn->trc[1].apply(c.y);
+        c.z = d->colorSpaceIn->trc[2].apply(c.z);
+    }
+    c = d->colorMatrix.map(c);
+    bool inGamut = c.x >= 0.0f && c.x <= 1.0f && c.y >= 0.0f && c.y <= 1.0f && c.z >= 0.0f && c.z <= 1.0f;
+    if (inGamut) {
+        if (d_ptr->colorSpaceOut->lutsGenerated.loadAcquire()) {
+            c.x = d->colorSpaceOut->lut[0]->fromLinear(c.x);
+            c.y = d->colorSpaceOut->lut[1]->fromLinear(c.y);
+            c.z = d->colorSpaceOut->lut[2]->fromLinear(c.z);
+        } else {
+            c.x = d->colorSpaceOut->trc[0].applyInverse(c.x);
+            c.y = d->colorSpaceOut->trc[1].applyInverse(c.y);
+            c.z = d->colorSpaceOut->trc[2].applyInverse(c.z);
+        }
+    } else {
+        c.x = d->colorSpaceOut->trc[0].applyInverseExtended(c.x);
+        c.y = d->colorSpaceOut->trc[1].applyInverseExtended(c.y);
+        c.z = d->colorSpaceOut->trc[2].applyInverseExtended(c.z);
+    }
+    QColor out;
+    out.setRgbF(c.x, c.y, c.z, color.alphaF());
+    return out;
+}
+
+// Optimized sub-routines for fast block based conversion:
+
+static void applyMatrix(QColorVector *buffer, const qsizetype len, const QColorMatrix &colorMatrix)
+{
+#if defined(__SSE2__)
+    const __m128 minV = _mm_set1_ps(0.0f);
+    const __m128 maxV = _mm_set1_ps(1.0f);
+    const __m128 xMat = _mm_loadu_ps(&colorMatrix.r.x);
+    const __m128 yMat = _mm_loadu_ps(&colorMatrix.g.x);
+    const __m128 zMat = _mm_loadu_ps(&colorMatrix.b.x);
+    for (qsizetype j = 0; j < len; ++j) {
+        __m128 c = _mm_loadu_ps(&buffer[j].x);
+        __m128 cx = _mm_shuffle_ps(c, c, _MM_SHUFFLE(0, 0, 0, 0));
+        __m128 cy = _mm_shuffle_ps(c, c, _MM_SHUFFLE(1, 1, 1, 1));
+        __m128 cz = _mm_shuffle_ps(c, c, _MM_SHUFFLE(2, 2, 2, 2));
+        cx = _mm_mul_ps(cx, xMat);
+        cy = _mm_mul_ps(cy, yMat);
+        cz = _mm_mul_ps(cz, zMat);
+        cx = _mm_add_ps(cx, cy);
+        cx = _mm_add_ps(cx, cz);
+        // Clamp:
+        cx = _mm_min_ps(cx, maxV);
+        cx = _mm_max_ps(cx, minV);
+        _mm_storeu_ps(&buffer[j].x, cx);
+    }
+#else
+    for (int j = 0; j < len; ++j) {
+        const QColorVector cv = colorMatrix.map(buffer[j]);
+        buffer[j].x = std::max(0.0f, std::min(1.0f, cv.x));
+        buffer[j].y = std::max(0.0f, std::min(1.0f, cv.y));
+        buffer[j].z = std::max(0.0f, std::min(1.0f, cv.z));
+    }
+#endif
+}
+
+template<typename T>
+static void loadPremultiplied(QColorVector *buffer, const T *src, const qsizetype len, const QColorTransformPrivate *d_ptr);
+template<typename T>
+static void loadUnpremultiplied(QColorVector *buffer, const T *src, const qsizetype len, const QColorTransformPrivate *d_ptr);
+
+#if defined(__SSE2__)
+// Load to [0-alpha] in 4x32 SIMD
+template<typename T>
+static inline void loadP(const T &p, __m128i &v);
+
+template<>
+inline void loadP<QRgb>(const QRgb &p, __m128i &v)
+{
+    v = _mm_cvtsi32_si128(p);
+#if defined(__SSE4_1__)
+    v = _mm_cvtepu8_epi32(v);
+#else
+    v = _mm_unpacklo_epi8(v, _mm_setzero_si128());
+    v = _mm_unpacklo_epi16(v, _mm_setzero_si128());
+#endif
+}
+
+template<>
+inline void loadP<QRgba64>(const QRgba64 &p, __m128i &v)
+{
+    v = _mm_loadl_epi64((const __m128i *)&p);
+#if defined(__SSE4_1__)
+    v = _mm_cvtepu16_epi32(v);
+#else
+    v = _mm_unpacklo_epi16(v, _mm_setzero_si128());
+#endif
+    // Shuffle to ARGB as the template below expects it
+    v = _mm_shuffle_epi32(v, _MM_SHUFFLE(3, 0, 1, 2));
+}
+
+template<typename T>
+static void loadPremultiplied(QColorVector *buffer, const T *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    const __m128 v4080 = _mm_set1_ps(4080.f);
+    const __m128 iFF00 = _mm_set1_ps(1.0f / (255 * 256));
+    for (qsizetype i = 0; i < len; ++i) {
+        __m128i v;
+        loadP<T>(src[i], v);
+        __m128 vf = _mm_cvtepi32_ps(v);
+        // Approximate 1/a:
+        __m128 va = _mm_shuffle_ps(vf, vf, _MM_SHUFFLE(3, 3, 3, 3));
+        __m128 via = _mm_rcp_ps(va);
+        via = _mm_sub_ps(_mm_add_ps(via, via), _mm_mul_ps(via, _mm_mul_ps(via, va)));
+        // v * (1/a)
+        vf = _mm_mul_ps(vf, via);
+
+        // Handle zero alpha
+        __m128 vAlphaMask = _mm_cmpeq_ps(va, _mm_set1_ps(0.0f));
+        vf = _mm_andnot_ps(vAlphaMask, vf);
+
+        // LUT
+        v = _mm_cvtps_epi32(_mm_mul_ps(vf, v4080));
+        const int ridx = _mm_extract_epi16(v, 4);
+        const int gidx = _mm_extract_epi16(v, 2);
+        const int bidx = _mm_extract_epi16(v, 0);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[0]->m_toLinear[ridx], 0);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[1]->m_toLinear[gidx], 2);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[2]->m_toLinear[bidx], 4);
+        vf = _mm_mul_ps(_mm_cvtepi32_ps(v), iFF00);
+
+        _mm_storeu_ps(&buffer[i].x, vf);
+    }
+}
+
+// Load to [0-4080] in 4x32 SIMD
+template<typename T>
+static inline void loadPU(const T &p, __m128i &v);
+
+template<>
+inline void loadPU<QRgb>(const QRgb &p, __m128i &v)
+{
+    v = _mm_cvtsi32_si128(p);
+#if defined(__SSE4_1__)
+    v = _mm_cvtepu8_epi32(v);
+#else
+    v = _mm_unpacklo_epi8(v, _mm_setzero_si128());
+    v = _mm_unpacklo_epi16(v, _mm_setzero_si128());
+#endif
+    v = _mm_slli_epi32(v, 4);
+}
+
+template<>
+inline void loadPU<QRgba64>(const QRgba64 &p, __m128i &v)
+{
+    v = _mm_loadl_epi64((const __m128i *)&p);
+    v = _mm_sub_epi16(v, _mm_srli_epi16(v, 8));
+#if defined(__SSE4_1__)
+    v = _mm_cvtepu16_epi32(v);
+#else
+    v = _mm_unpacklo_epi16(v, _mm_setzero_si128());
+#endif
+    v = _mm_srli_epi32(v, 4);
+    // Shuffle to ARGB as the template below expects it
+    v = _mm_shuffle_epi32(v, _MM_SHUFFLE(3, 0, 1, 2));
+}
+
+template<typename T>
+void loadUnpremultiplied(QColorVector *buffer, const T *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    const __m128 iFF00 = _mm_set1_ps(1.0f / (255 * 256));
+    for (qsizetype i = 0; i < len; ++i) {
+        __m128i v;
+        loadPU<T>(src[i], v);
+        const int ridx = _mm_extract_epi16(v, 4);
+        const int gidx = _mm_extract_epi16(v, 2);
+        const int bidx = _mm_extract_epi16(v, 0);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[0]->m_toLinear[ridx], 0);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[1]->m_toLinear[gidx], 2);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceIn->lut[2]->m_toLinear[bidx], 4);
+        __m128 vf = _mm_mul_ps(_mm_cvtepi32_ps(v), iFF00);
+        _mm_storeu_ps(&buffer[i].x, vf);
+    }
+}
+
+#else
+template<>
+void loadPremultiplied<QRgb>(QColorVector *buffer, const QRgb *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+        const uint p = src[i];
+        const int a = qAlpha(p);
+        if (a) {
+            const float ia = 4080.0f / a;
+            const int ridx = int(qRed(p)   * ia + 0.5f);
+            const int gidx = int(qGreen(p) * ia + 0.5f);
+            const int bidx = int(qBlue(p)  * ia + 0.5f);
+            buffer[i].x = d_ptr->colorSpaceIn->lut[0]->m_toLinear[ridx] * (1.0f / (255 * 256));
+            buffer[i].y = d_ptr->colorSpaceIn->lut[1]->m_toLinear[gidx] * (1.0f / (255 * 256));
+            buffer[i].z = d_ptr->colorSpaceIn->lut[2]->m_toLinear[bidx] * (1.0f / (255 * 256));
+        } else {
+            buffer[i].x = buffer[i].y = buffer[i].z = 0.0f;
+        }
+    }
+}
+
+template<>
+void loadPremultiplied<QRgba64>(QColorVector *buffer, const QRgba64 *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+        const QRgba64 &p = src[i];
+        const int a = p.alpha();
+        if (a) {
+            const float ia = 4080.0f / a;
+            const int ridx = int(p.red()   * ia + 0.5f);
+            const int gidx = int(p.green() * ia + 0.5f);
+            const int bidx = int(p.blue()  * ia + 0.5f);
+            buffer[i].x = d_ptr->colorSpaceIn->lut[0]->m_toLinear[ridx] * (1.0f / (255 * 256));
+            buffer[i].y = d_ptr->colorSpaceIn->lut[1]->m_toLinear[gidx] * (1.0f / (255 * 256));
+            buffer[i].z = d_ptr->colorSpaceIn->lut[2]->m_toLinear[bidx] * (1.0f / (255 * 256));
+        } else {
+            buffer[i].x = buffer[i].y = buffer[i].z = 0.0f;
+        }
+    }
+}
+
+template<>
+void loadUnpremultiplied<QRgb>(QColorVector *buffer, const QRgb *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+        const uint p = src[i];
+        buffer[i].x = d_ptr->colorSpaceIn->lut[0]->u8ToLinearF32(qRed(p));
+        buffer[i].y = d_ptr->colorSpaceIn->lut[1]->u8ToLinearF32(qGreen(p));
+        buffer[i].z = d_ptr->colorSpaceIn->lut[2]->u8ToLinearF32(qBlue(p));
+    }
+}
+
+template<>
+void loadUnpremultiplied<QRgba64>(QColorVector *buffer, const QRgba64 *src, const qsizetype len, const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+        const QRgba64 &p = src[i];
+        buffer[i].x = d_ptr->colorSpaceIn->lut[0]->u16ToLinearF32(p.red());
+        buffer[i].y = d_ptr->colorSpaceIn->lut[1]->u16ToLinearF32(p.green());
+        buffer[i].z = d_ptr->colorSpaceIn->lut[2]->u16ToLinearF32(p.blue());
+    }
+}
+#endif
+
+static void storePremultiplied(QRgb *dst, const QRgb *src, const QColorVector *buffer, const qsizetype len,
+                               const QColorTransformPrivate *d_ptr)
+{
+#if defined(__SSE2__)
+    const __m128 v4080 = _mm_set1_ps(4080.f);
+    const __m128 iFF00 = _mm_set1_ps(1.0f / (255 * 256));
+    for (qsizetype i = 0; i < len; ++i) {
+        const int a = qAlpha(src[i]);
+        __m128 vf = _mm_loadu_ps(&buffer[i].x);
+        __m128i v = _mm_cvtps_epi32(_mm_mul_ps(vf, v4080));
+        __m128 va = _mm_set1_ps(a);
+        va = _mm_mul_ps(va, iFF00);
+        const int ridx = _mm_extract_epi16(v, 0);
+        const int gidx = _mm_extract_epi16(v, 2);
+        const int bidx = _mm_extract_epi16(v, 4);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[0]->m_fromLinear[ridx], 4);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[1]->m_fromLinear[gidx], 2);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[2]->m_fromLinear[bidx], 0);
+        vf = _mm_cvtepi32_ps(v);
+        vf = _mm_mul_ps(vf, va);
+        v = _mm_cvtps_epi32(vf);
+        v = _mm_packs_epi32(v, v);
+        v = _mm_insert_epi16(v, a, 3);
+        v = _mm_packus_epi16(v, v);
+        dst[i] = _mm_cvtsi128_si32(v);
+    }
+#else
+    for (qsizetype i = 0; i < len; ++i) {
+        const int a = qAlpha(src[i]);
+        const float fa = a / (255.0f * 256.0f);
+        const float r = d_ptr->colorSpaceOut->lut[0]->m_fromLinear[int(buffer[i].x * 4080.0f + 0.5f)];
+        const float g = d_ptr->colorSpaceOut->lut[1]->m_fromLinear[int(buffer[i].y * 4080.0f + 0.5f)];
+        const float b = d_ptr->colorSpaceOut->lut[2]->m_fromLinear[int(buffer[i].z * 4080.0f + 0.5f)];
+        dst[i] = qRgba(r * fa + 0.5f, g * fa + 0.5f, b * fa + 0.5f, a);
+    }
+#endif
+}
+
+static void storeUnpremultiplied(QRgb *dst, const QRgb *src, const QColorVector *buffer, const qsizetype len,
+                                 const QColorTransformPrivate *d_ptr)
+{
+#if defined(__SSE2__)
+    const __m128 v4080 = _mm_set1_ps(4080.f);
+    for (qsizetype i = 0; i < len; ++i) {
+        const int a = qAlpha(src[i]);
+        __m128 vf = _mm_loadu_ps(&buffer[i].x);
+        __m128i v = _mm_cvtps_epi32(_mm_mul_ps(vf, v4080));
+        const int ridx = _mm_extract_epi16(v, 0);
+        const int gidx = _mm_extract_epi16(v, 2);
+        const int bidx = _mm_extract_epi16(v, 4);
+        v = _mm_setzero_si128();
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[0]->m_fromLinear[ridx], 2);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[1]->m_fromLinear[gidx], 1);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[2]->m_fromLinear[bidx], 0);
+        v = _mm_add_epi16(v, _mm_set1_epi16(0x80));
+        v = _mm_srli_epi16(v, 8);
+        v = _mm_insert_epi16(v, a, 3);
+        v = _mm_packus_epi16(v, v);
+        dst[i] = _mm_cvtsi128_si32(v);
+    }
+#else
+    for (qsizetype i = 0; i < len; ++i) {
+        const int r = d_ptr->colorSpaceOut->lut[0]->u8FromLinearF32(buffer[i].x);
+        const int g = d_ptr->colorSpaceOut->lut[1]->u8FromLinearF32(buffer[i].y);
+        const int b = d_ptr->colorSpaceOut->lut[2]->u8FromLinearF32(buffer[i].z);
+        dst[i] = (src[i] & 0xff000000) | (r << 16) | (g << 8) | (b << 0);
+    }
+#endif
+}
+
+static void storeOpaque(QRgb *dst, const QRgb *src, const QColorVector *buffer, const qsizetype len,
+                        const QColorTransformPrivate *d_ptr)
+{
+    Q_UNUSED(src);
+#if defined(__SSE2__)
+    const __m128 v4080 = _mm_set1_ps(4080.f);
+    for (qsizetype i = 0; i < len; ++i) {
+        __m128 vf = _mm_loadu_ps(&buffer[i].x);
+        __m128i v = _mm_cvtps_epi32(_mm_mul_ps(vf, v4080));
+        const int ridx = _mm_extract_epi16(v, 0);
+        const int gidx = _mm_extract_epi16(v, 2);
+        const int bidx = _mm_extract_epi16(v, 4);
+        v = _mm_setzero_si128();
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[0]->m_fromLinear[ridx], 2);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[1]->m_fromLinear[gidx], 1);
+        v = _mm_insert_epi16(v, d_ptr->colorSpaceOut->lut[2]->m_fromLinear[bidx], 0);
+        v = _mm_add_epi16(v, _mm_set1_epi16(0x80));
+        v = _mm_srli_epi16(v, 8);
+        v = _mm_insert_epi16(v, 255, 3);
+        v = _mm_packus_epi16(v, v);
+        dst[i] = _mm_cvtsi128_si32(v);
+    }
+#else
+    for (qsizetype i = 0; i < len; ++i) {
+        const int r = d_ptr->colorSpaceOut->lut[0]->u8FromLinearF32(buffer[i].x);
+        const int g = d_ptr->colorSpaceOut->lut[1]->u8FromLinearF32(buffer[i].y);
+        const int b = d_ptr->colorSpaceOut->lut[2]->u8FromLinearF32(buffer[i].z);
+        dst[i] = 0xff000000 | (r << 16) | (g << 8) | (b << 0);
+    }
+#endif
+}
+
+static void storePremultiplied(QRgba64 *dst, const QRgba64 *src, const QColorVector *buffer, const qsizetype len,
+                               const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+        const int a = src[i].alpha();
+        const float fa = a / (255.0f * 256.0f);
+        const float r = d_ptr->colorSpaceOut->lut[0]->m_fromLinear[int(buffer[i].x * 4080.0f + 0.5f)];
+        const float g = d_ptr->colorSpaceOut->lut[1]->m_fromLinear[int(buffer[i].y * 4080.0f + 0.5f)];
+        const float b = d_ptr->colorSpaceOut->lut[2]->m_fromLinear[int(buffer[i].z * 4080.0f + 0.5f)];
+        dst[i] = qRgba64(r * fa + 0.5f, g * fa + 0.5f, b * fa + 0.5f, a);
+    }
+}
+
+static void storeUnpremultiplied(QRgba64 *dst, const QRgba64 *src, const QColorVector *buffer, const qsizetype len,
+                                 const QColorTransformPrivate *d_ptr)
+{
+    for (qsizetype i = 0; i < len; ++i) {
+         const int r = d_ptr->colorSpaceOut->lut[0]->u16FromLinearF32(buffer[i].x);
+         const int g = d_ptr->colorSpaceOut->lut[1]->u16FromLinearF32(buffer[i].y);
+         const int b = d_ptr->colorSpaceOut->lut[2]->u16FromLinearF32(buffer[i].z);
+         dst[i] = qRgba64(r, g, b, src[i].alpha());
+    }
+}
+
+static void storeOpaque(QRgba64 *dst, const QRgba64 *src, const QColorVector *buffer, const qsizetype len,
+                        const QColorTransformPrivate *d_ptr)
+{
+    Q_UNUSED(src);
+    for (qsizetype i = 0; i < len; ++i) {
+        const int r = d_ptr->colorSpaceOut->lut[0]->u16FromLinearF32(buffer[i].x);
+        const int g = d_ptr->colorSpaceOut->lut[1]->u16FromLinearF32(buffer[i].y);
+        const int b = d_ptr->colorSpaceOut->lut[2]->u16FromLinearF32(buffer[i].z);
+        dst[i] = qRgba64(r, g, b, 0xFFFF);
+    }
+}
+
+static constexpr qsizetype WorkBlockSize = 256;
+
+template<typename T>
+void QColorTransformPrivate::apply(T *dst, const T *src, qsizetype count, TransformFlags flags) const
+{
+    if (!colorMatrix.isValid())
+        return;
+
+    updateLutsIn();
+    updateLutsOut();
+
+    bool doApplyMatrix = (colorMatrix != QColorMatrix::identity());
+
+    QColorVector buffer[WorkBlockSize];
+    qsizetype i = 0;
+    while (i < count) {
+        const qsizetype len = qMin(count - i, WorkBlockSize);
+        if (flags & InputPremultiplied)
+            loadPremultiplied(buffer, src + i, len, this);
+        else
+            loadUnpremultiplied(buffer, src + i, len, this);
+
+        if (doApplyMatrix)
+            applyMatrix(buffer, len, colorMatrix);
+
+        if (flags & InputOpaque)
+            storeOpaque(dst + i, src + i, buffer, len, this);
+        else if (flags & OutputPremultiplied)
+            storePremultiplied(dst + i, src + i, buffer, len, this);
+        else
+            storeUnpremultiplied(dst + i, src + i, buffer, len, this);
+
+        i += len;
+    }
+}
+
+/*!
+    \internal
+    \enum QColorTransformPrivate::TransformFlag
+
+    Defines how the transform is to be applied.
+
+    \value Unpremultiplied The input and output should both be unpremultiplied.
+    \value InputOpaque The input is guaranteed to be opaque.
+    \value InputPremultiplied The input is premultiplied.
+    \value OutputPremultiplied The output should be premultiplied.
+    \value Premultiplied Both input and output should both be premultiplied.
+*/
+
+/*!
+    \internal
+    Prepares a color transformation for fast application. You do not need to
+    call this explicitly as it will be called implicitly on the first transforms, but
+    if you want predictable performance on the first transforms, you can perform it
+    in advance.
+
+    \sa QColorTransform::map(), apply()
+*/
+void QColorTransformPrivate::prepare()
+{
+    updateLutsIn();
+    updateLutsOut();
+}
+
+/*!
+    \internal
+    Applies the color transformation on \a count QRgb pixels starting from
+    \a src and stores the result in \a dst.
+
+    Thread-safe if prepare() has been called first.
+
+    Assumes unpremultiplied data by default. Set \a flags to change defaults.
+
+    \sa prepare()
+*/
+void QColorTransformPrivate::apply(QRgb *dst, const QRgb *src, qsizetype count, TransformFlags flags) const
+{
+    apply<QRgb>(dst, src, count, flags);
+}
+
+/*!
+    \internal
+    Applies the color transformation on \a count QRgba64 pixels starting from
+    \a src and stores the result in \a dst.
+
+    Thread-safe if prepare() has been called first.
+
+    Assumes unpremultiplied data by default. Set \a flags to change defaults.
+
+    \sa prepare()
+*/
+void QColorTransformPrivate::apply(QRgba64 *dst, const QRgba64 *src, qsizetype count, TransformFlags flags) const
+{
+    apply<QRgba64>(dst, src, count, flags);
+}
+
+
+QT_END_NAMESPACE
diff --git a/src/gui/painting/qcolortransform.h b/src/gui/painting/qcolortransform.h
new file mode 100644
index 0000000000..9274387b97
--- /dev/null
+++ b/src/gui/painting/qcolortransform.h
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORTRANSFORM_H
+#define QCOLORTRANSFORM_H
+
+#include <QtGui/qtguiglobal.h>
+#include <QtCore/qsharedpointer.h>
+#include <QtGui/qrgb.h>
+
+QT_BEGIN_NAMESPACE
+
+class QColor;
+class QRgba64;
+class QColorSpacePrivate;
+class QColorTransformPrivate;
+
+class Q_GUI_EXPORT QColorTransform
+{
+public:
+    QColorTransform() noexcept : d_ptr(nullptr) { }
+    ~QColorTransform() noexcept;
+    QColorTransform(const QColorTransform &colorTransform) noexcept
+            : d_ptr(colorTransform.d_ptr)
+    { }
+    QColorTransform(QColorTransform &&colorTransform) noexcept
+            : d_ptr(std::move(colorTransform.d_ptr))
+    { }
+    QColorTransform &operator=(const QColorTransform &other) noexcept
+    {
+        d_ptr = other.d_ptr;
+        return *this;
+    }
+    QColorTransform &operator=(QColorTransform &&other) noexcept
+    {
+        d_ptr = std::move(other.d_ptr);
+        return *this;
+    }
+
+    bool isNull() const { return d_ptr.isNull(); }
+
+    QRgb map(const QRgb &argb) const;
+    QRgba64 map(const QRgba64 &rgba64) const;
+    QColor map(const QColor &color) const;
+
+private:
+    friend class QColorSpace;
+    friend class QColorSpacePrivate;
+    friend class QImage;
+
+    Q_DECLARE_PRIVATE(QColorTransform)
+    QSharedPointer<QColorTransformPrivate> d_ptr;
+};
+
+QT_END_NAMESPACE
+
+#endif // QCOLORTRANSFORM_H
diff --git a/src/corelib/global/qfloat16_p.h b/src/gui/painting/qcolortransform_p.h
index f3fc96e119..74a1e7fe0a 100644
--- a/src/corelib/global/qfloat16_p.h
+++ b/src/gui/painting/qcolortransform_p.h
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 by Southwest Research Institute (R)
-** Contact: http://www.qt-project.org/legal
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the QtCore module of the Qt Toolkit.
+** This file is part of the QtGui module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
@@ -37,8 +37,8 @@
 **
 ****************************************************************************/
 
-#ifndef QFLOAT16_P_H
-#define QFLOAT16_P_H
+#ifndef QCOLORTRANSFORM_P_H
+#define QCOLORTRANSFORM_P_H
 
 //
 //  W A R N I N G
@@ -51,45 +51,39 @@
 // We mean it.
 //
 
-#include <QtCore/qfloat16.h>
-#include <QtCore/qsysinfo.h>
+#include "qcolormatrix_p.h"
+#include "qcolorspace_p.h"
 
 QT_BEGIN_NAMESPACE
 
-static inline bool qt_is_inf(qfloat16 d) Q_DECL_NOTHROW
+class QColorTransformPrivate
 {
-    bool is_inf;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_inf = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) == 0;
-    else
-        is_inf = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) == 0;
-    return is_inf;
-}
+public:
+    QColorMatrix colorMatrix;
+    QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceIn;
+    QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceOut;
 
-static inline bool qt_is_nan(qfloat16 d) Q_DECL_NOTHROW
-{
-    bool is_nan;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_nan = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) != 0;
-    else
-        is_nan = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) != 0;
-    return is_nan;
-}
+    void updateLutsIn() const;
+    void updateLutsOut() const;
+    bool simpleGammaCorrection() const;
 
-static inline bool qt_is_finite(qfloat16 d) Q_DECL_NOTHROW
-{
-    bool is_finite;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_finite = (ch[0] & 0x7c) != 0x7c;
-    else
-        is_finite = (ch[1] & 0x7c) != 0x7c;
-    return is_finite;
-}
+    void prepare();
+    enum TransformFlag {
+        Unpremultiplied = 0,
+        InputOpaque = 1,
+        InputPremultiplied = 2,
+        OutputPremultiplied = 4,
+        Premultiplied = (InputPremultiplied | OutputPremultiplied)
+    };
+    Q_DECLARE_FLAGS(TransformFlags, TransformFlag)
+
+    void apply(QRgb *dst, const QRgb *src, qsizetype count, TransformFlags flags = Unpremultiplied) const;
+    void apply(QRgba64 *dst, const QRgba64 *src, qsizetype count, TransformFlags flags = Unpremultiplied) const;
 
+    template<typename T>
+    void apply(T *dst, const T *src, qsizetype count, TransformFlags flags) const;
+};
 
 QT_END_NAMESPACE
 
-#endif // QFLOAT16_P_H
+#endif // QCOLORTRANSFORM_P_H
diff --git a/src/gui/painting/qcolortrc_p.h b/src/gui/painting/qcolortrc_p.h
new file mode 100644
index 0000000000..3ef9d442fc
--- /dev/null
+++ b/src/gui/painting/qcolortrc_p.h
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOLORTRC_P_H
+#define QCOLORTRC_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qtguiglobal_p.h>
+#include "qcolortransferfunction_p.h"
+#include "qcolortransfertable_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+// Defines an ICC TRC (Tone Reproduction Curve)
+class Q_GUI_EXPORT QColorTrc
+{
+public:
+    QColorTrc() noexcept : m_type(Type::Uninitialized)
+    { }
+    QColorTrc(const QColorTransferFunction &fun) : m_type(Type::Function), m_fun(fun)
+    { }
+    QColorTrc(const QColorTransferTable &table) : m_type(Type::Table), m_table(table)
+    { }
+
+    enum class Type {
+        Uninitialized,
+        Function,
+        Table
+    };
+
+    bool isLinear() const
+    {
+        return m_type == Type::Uninitialized || (m_type == Type::Function && m_fun.isLinear());
+    }
+    bool isValid() const
+    {
+        return m_type != Type::Uninitialized;
+    }
+    float apply(float x) const
+    {
+        if (m_type == Type::Table)
+            return m_table.apply(x);
+        if (m_type == Type::Function)
+            return m_fun.apply(x);
+        return x;
+    }
+    float applyExtended(float x) const
+    {
+        if (x >= 0.0f && x <= 1.0f)
+            return apply(x);
+        if (m_type == Type::Function)
+            return std::copysign(m_fun.apply(std::abs(x)), x);
+        if (m_type == Type::Table)
+            return x < 0.0f ? 0.0f : 1.0f;
+        return x;
+    }
+    float applyInverse(float x) const
+    {
+        if (m_type == Type::Table)
+            return m_table.applyInverse(x);
+        if (m_type == Type::Function)
+            return m_fun.inverted().apply(x);
+        return x;
+    }
+    float applyInverseExtended(float x) const
+    {
+        if (x >= 0.0f && x <= 1.0f)
+            return applyInverse(x);
+        if (m_type == Type::Function)
+            return std::copysign(applyInverse(x), x);
+        if (m_type == Type::Table)
+            return x < 0.0f ? 0.0f : 1.0f;
+        return x;
+    }
+
+    friend inline bool operator!=(const QColorTrc &o1, const QColorTrc &o2);
+    friend inline bool operator==(const QColorTrc &o1, const QColorTrc &o2);
+
+    Type m_type;
+    QColorTransferFunction m_fun;
+    QColorTransferTable m_table;
+};
+
+inline bool operator!=(const QColorTrc &o1, const QColorTrc &o2)
+{
+    if (o1.m_type != o2.m_type)
+        return true;
+    if (o1.m_type == QColorTrc::Type::Function)
+        return o1.m_fun != o2.m_fun;
+    if (o1.m_type == QColorTrc::Type::Table)
+        return o1.m_table != o2.m_table;
+    return false;
+}
+inline bool operator==(const QColorTrc &o1, const QColorTrc &o2)
+{
+    return !(o1 != o2);
+}
+
+QT_END_NAMESPACE
+
+#endif // QCOLORTRC
diff --git a/src/gui/painting/qcolorprofile.cpp b/src/gui/painting/qcolortrclut.cpp
index 3b7b0a248b..268d7252b4 100644
--- a/src/gui/painting/qcolorprofile.cpp
+++ b/src/gui/painting/qcolortrclut.cpp
@@ -37,14 +37,16 @@
 **
 ****************************************************************************/
 
-#include "qcolorprofile_p.h"
+#include "qcolortrclut_p.h"
+#include "qcolortransferfunction_p.h"
+#include "qcolortransfertable_p.h"
 #include <qmath.h>
 
 QT_BEGIN_NAMESPACE
 
-QColorProfile *QColorProfile::fromGamma(qreal gamma)
+QColorTrcLut *QColorTrcLut::fromGamma(qreal gamma)
 {
-    QColorProfile *cp = new QColorProfile;
+    QColorTrcLut *cp = new QColorTrcLut;
 
     for (int i = 0; i <= (255 * 16); ++i) {
         cp->m_toLinear[i] = ushort(qRound(qPow(i / qreal(255 * 16), gamma) * (255 * 256)));
@@ -54,31 +56,28 @@ QColorProfile *QColorProfile::fromGamma(qreal gamma)
     return cp;
 }
 
-static qreal srgbToLinear(qreal v)
+QColorTrcLut *QColorTrcLut::fromTransferFunction(const QColorTransferFunction &fun)
 {
-    const qreal a = 0.055;
-    if (v <= qreal(0.04045))
-        return v / qreal(12.92);
-    else
-        return qPow((v + a) / (qreal(1) + a), qreal(2.4));
-}
+    QColorTrcLut *cp = new QColorTrcLut;
+    QColorTransferFunction inv = fun.inverted();
 
-static qreal linearToSrgb(qreal v)
-{
-    const qreal a = 0.055;
-    if (v <= qreal(0.0031308))
-        return v * qreal(12.92);
-    else
-        return (qreal(1) + a) * qPow(v, qreal(1.0 / 2.4)) - a;
+    for (int i = 0; i <= (255 * 16); ++i) {
+        cp->m_toLinear[i] = ushort(qRound(fun.apply(i / qreal(255 * 16)) * (255 * 256)));
+        cp->m_fromLinear[i] = ushort(qRound(inv.apply(i / qreal(255 * 16)) * (255 * 256)));
+    }
+
+    return cp;
 }
 
-QColorProfile *QColorProfile::fromSRgb()
+QColorTrcLut *QColorTrcLut::fromTransferTable(const QColorTransferTable &table)
 {
-    QColorProfile *cp = new QColorProfile;
+    QColorTrcLut *cp = new QColorTrcLut;
 
+    float minInverse = 0.0f;
     for (int i = 0; i <= (255 * 16); ++i) {
-        cp->m_toLinear[i] = ushort(qRound(srgbToLinear(i / qreal(255 * 16)) * (255 * 256)));
-        cp->m_fromLinear[i] = ushort(qRound(linearToSrgb(i / qreal(255 * 16)) * (255 * 256)));
+        cp->m_toLinear[i] = ushort(qBound(0, qRound(table.apply(i / qreal(255 * 16)) * (255 * 256)), 65280));
+        minInverse = table.applyInverse(i / qreal(255 * 16), minInverse);
+        cp->m_fromLinear[i] = ushort(qBound(0, qRound(minInverse * (255 * 256)), 65280));
     }
 
     return cp;
diff --git a/src/gui/painting/qcolorprofile_p.h b/src/gui/painting/qcolortrclut_p.h
index 425e9abace..76a6a60803 100644
--- a/src/gui/painting/qcolorprofile_p.h
+++ b/src/gui/painting/qcolortrclut_p.h
@@ -37,8 +37,8 @@
 **
 ****************************************************************************/
 
-#ifndef QCOLORPROFILE_P_H
-#define QCOLORPROFILE_P_H
+#ifndef QCOLORTRCLUT_P_H
+#define QCOLORTRCLUT_P_H
 
 //
 //  W A R N I N G
@@ -52,21 +52,29 @@
 //
 
 #include <QtGui/private/qtguiglobal_p.h>
+#include <QtCore/qsharedpointer.h>
 #include <QtGui/qrgb.h>
 #include <QtGui/qrgba64.h>
 
+#include <cmath>
+
 #if defined(__SSE2__)
 #include <emmintrin.h>
 #elif defined(__ARM_NEON__) || defined(__ARM_NEON)
 #include <arm_neon.h>
 #endif
+
 QT_BEGIN_NAMESPACE
 
-class Q_GUI_EXPORT QColorProfile
+class QColorTransferFunction;
+class QColorTransferTable;
+
+class Q_GUI_EXPORT QColorTrcLut : public QEnableSharedFromThis<QColorTrcLut>
 {
 public:
-    static QColorProfile *fromGamma(qreal gamma);
-    static QColorProfile *fromSRgb();
+    static QColorTrcLut *fromGamma(qreal gamma);
+    static QColorTrcLut *fromTransferFunction(const QColorTransferFunction &transfn);
+    static QColorTrcLut *fromTransferTable(const QColorTransferTable &transTable);
 
     // The following methods all convert opaque or unpremultiplied colors:
 
@@ -121,6 +129,25 @@ public:
         return convertWithTable(rgb64, m_toLinear);
     }
 
+    float u8ToLinearF32(int c) const
+    {
+        ushort v = m_toLinear[c << 4];
+        return v * (1.0f / (255*256));
+    }
+
+    float u16ToLinearF32(int c) const
+    {
+        c -= (c >> 8);
+        ushort v = m_toLinear[c >> 4];
+        return v * (1.0f / (255*256));
+    }
+
+    float toLinear(float f) const
+    {
+        ushort v = m_toLinear[(int)(f * (255 * 16) + 0.5f)];
+        return v * (1.0f / (255*256));
+    }
+
     QRgb fromLinear64(QRgba64 rgb64) const
     {
 #if defined(__SSE2__)
@@ -176,8 +203,31 @@ public:
         return convertWithTable(rgb64, m_fromLinear);
     }
 
+    int u8FromLinearF32(float f) const
+    {
+        ushort v = m_fromLinear[(int)(f * (255 * 16) + 0.5f)];
+        return (v + 0x80) >> 8;
+    }
+    int u16FromLinearF32(float f) const
+    {
+        ushort v = m_fromLinear[(int)(f * (255 * 16) + 0.5f)];
+        return v + (v >> 8);
+    }
+    float fromLinear(float f) const
+    {
+        ushort v = m_fromLinear[(int)(f * (255 * 16) + 0.5f)];
+        return v * (1.0f / (255*256));
+    }
+
+    // We translate to 0-65280 (255*256) instead to 0-65535 to make simple
+    // shifting an accurate conversion.
+    // We translate from 0-4080 (255*16) for the same speed up, and to keep
+    // the tables small enough to fit in most inner caches.
+    ushort m_toLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280]
+    ushort m_fromLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280]
+
 private:
-    QColorProfile() { }
+    QColorTrcLut() { }
 
     Q_ALWAYS_INLINE static QRgb convertWithTable(QRgb rgb32, const ushort *table)
     {
@@ -230,16 +280,8 @@ private:
         return QRgba64::fromRgba64(r, g, b, rgb64.alpha());
 #endif
     }
-
-    // We translate to 0-65280 (255*256) instead to 0-65535 to make simple
-    // shifting an accurate conversion.
-    // We translate from 0-4080 (255*16) for the same speed up, and to keep
-    // the tables small enough to fit in most inner caches.
-    ushort m_toLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280]
-    ushort m_fromLinear[(255 * 16) + 1]; // [0-4080] -> [0-65280]
-
 };
 
 QT_END_NAMESPACE
 
-#endif // QCOLORPROFILE_P_H
+#endif // QCOLORTRCLUT_P_H
diff --git a/src/gui/painting/qcompositionfunctions.cpp b/src/gui/painting/qcompositionfunctions.cpp
index 5c1afe8425..06a849e790 100644
--- a/src/gui/painting/qcompositionfunctions.cpp
+++ b/src/gui/painting/qcompositionfunctions.cpp
@@ -137,6 +137,7 @@ struct Rgba64OperationsBase
     { ::memcpy(dest, src, len * sizeof(Type)); }
 };
 
+#if QT_CONFIG(raster_64bit)
 const Rgba64OperationsBase::Type Rgba64OperationsBase::clear = QRgba64::fromRgba64(0);
 
 struct Rgba64OperationsC : public Rgba64OperationsBase
@@ -309,10 +310,8 @@ struct Rgba64OperationsNEON : public Rgba64OperationsBase
         return interpolate65535(x, a1, y, a2);
     }
 };
-
 #endif
 
-typedef Argb32OperationsC Argb32Operations;
 #if defined(__SSE2__)
 typedef Rgba64OperationsSSE2 Rgba64Operations;
 #elif defined(__ARM_NEON__)
@@ -320,6 +319,9 @@ typedef Rgba64OperationsNEON Rgba64Operations;
 #else
 typedef Rgba64OperationsC Rgba64Operations;
 #endif
+#endif // QT_CONFIG(raster_64bit)
+
+typedef Argb32OperationsC Argb32Operations;
 
 /*
   result = 0
@@ -343,20 +345,23 @@ void QT_FASTCALL comp_func_solid_Clear(uint *dest, int length, uint, uint const_
     comp_func_Clear_template<Argb32Operations>(dest, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_Clear_rgb64(QRgba64 *dest, int length, QRgba64, uint const_alpha)
+void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha)
 {
-    comp_func_Clear_template<Rgba64Operations>(dest, length, const_alpha);
+    comp_func_Clear_template<Argb32Operations>(dest, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_Clear_rgb64(QRgba64 *dest, int length, QRgba64, uint const_alpha)
 {
-    comp_func_Clear_template<Argb32Operations>(dest, length, const_alpha);
+    comp_func_Clear_template<Rgba64Operations>(dest, length, const_alpha);
 }
 
 void QT_FASTCALL comp_func_Clear_rgb64(QRgba64 *dest, const QRgba64 *, int length, uint const_alpha)
 {
     comp_func_Clear_template<Rgba64Operations>(dest, length, const_alpha);
 }
+#endif
+
 
 /*
   result = s
@@ -399,36 +404,40 @@ void QT_FASTCALL comp_func_solid_Source(uint *dest, int length, uint color, uint
     comp_func_solid_Source_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_Source_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_Source(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_Source_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_Source_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_Source(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_Source_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_Source_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_Source_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_Source_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_Source_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 void QT_FASTCALL comp_func_solid_Destination(uint *, int, uint, uint)
 {
 }
 
-void QT_FASTCALL comp_func_solid_Destination_rgb64(QRgba64 *, int, QRgba64, uint)
+void QT_FASTCALL comp_func_Destination(uint *, const uint *, int, uint)
 {
 }
 
-void QT_FASTCALL comp_func_Destination(uint *, const uint *, int, uint)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_Destination_rgb64(QRgba64 *, int, QRgba64, uint)
 {
 }
 
 void QT_FASTCALL comp_func_Destination_rgb64(QRgba64 *, const QRgba64 *, int, uint)
 {
 }
+#endif
 
 /*
   result = s + d * sia
@@ -483,20 +492,22 @@ void QT_FASTCALL comp_func_solid_SourceOver(uint *dest, int length, uint color,
     comp_func_solid_SourceOver_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_SourceOver_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_SourceOver(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_SourceOver_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_SourceOver_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_SourceOver(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_SourceOver_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_SourceOver_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_SourceOver_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_SourceOver_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_SourceOver_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = d + s * dia
@@ -542,20 +553,22 @@ void QT_FASTCALL comp_func_solid_DestinationOver(uint *dest, int length, uint co
     comp_func_solid_DestinationOver_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_DestinationOver_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_DestinationOver(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_DestinationOver_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_DestinationOver_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_DestinationOver(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_DestinationOver_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_DestinationOver_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_DestinationOver_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_DestinationOver_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_DestinationOver_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = s * da
@@ -606,20 +619,22 @@ void QT_FASTCALL comp_func_solid_SourceIn(uint *dest, int length, uint color, ui
     comp_func_solid_SourceIn_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_SourceIn_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_SourceIn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_SourceIn_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_SourceIn_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_SourceIn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_SourceIn_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_SourceIn_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_SourceIn_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_SourceIn_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_SourceIn_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = d * sa
@@ -665,20 +680,22 @@ void QT_FASTCALL comp_func_solid_DestinationIn(uint *dest, int length, uint colo
     comp_func_solid_DestinationIn_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_DestinationIn_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_DestinationIn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_DestinationIn_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_DestinationIn_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_DestinationIn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_DestinationIn_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_DestinationIn_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_DestinationIn_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_DestinationIn_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_DestinationIn_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = s * dia
@@ -727,20 +744,22 @@ void QT_FASTCALL comp_func_solid_SourceOut(uint *dest, int length, uint color, u
     comp_func_solid_SourceOut_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_SourceOut_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_SourceOut(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_SourceOut_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_SourceOut_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_SourceOut(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_SourceOut_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_SourceOut_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_SourceOut_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_SourceOut_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_SourceOut_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = d * sia
@@ -786,20 +805,22 @@ void QT_FASTCALL comp_func_solid_DestinationOut(uint *dest, int length, uint col
     comp_func_solid_DestinationOut_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_DestinationOut_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_DestinationOut(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_DestinationOut_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_DestinationOut_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_DestinationOut(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_DestinationOut_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_DestinationOut_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_DestinationOut_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_DestinationOut_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_DestinationOut_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = s*da + d*sia
@@ -845,20 +866,22 @@ void QT_FASTCALL comp_func_solid_SourceAtop(uint *dest, int length, uint color,
     comp_func_solid_SourceAtop_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_SourceAtop_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_SourceAtop(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_SourceAtop_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_SourceAtop_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_SourceAtop(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_SourceAtop_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_SourceAtop_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_SourceAtop_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_SourceAtop_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_SourceAtop_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = d*sa + s*dia
@@ -909,20 +932,22 @@ void QT_FASTCALL comp_func_solid_DestinationAtop(uint *dest, int length, uint co
     comp_func_solid_DestinationAtop_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_DestinationAtop_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_DestinationAtop(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_DestinationAtop_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_DestinationAtop_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_DestinationAtop(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_DestinationAtop_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_DestinationAtop_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_DestinationAtop_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_DestinationAtop_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_DestinationAtop_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
   result = d*sia + s*dia
@@ -969,20 +994,22 @@ void QT_FASTCALL comp_func_solid_XOR(uint *dest, int length, uint color, uint co
     comp_func_solid_XOR_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_XOR_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_XOR(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_XOR_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_XOR_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_XOR(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_XOR_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_XOR_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_XOR_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_XOR_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_XOR_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 struct QFullCoverage {
     inline void store(uint *dest, const uint src) const
@@ -1078,20 +1105,22 @@ void QT_FASTCALL comp_func_solid_Plus(uint *dest, int length, uint color, uint c
     comp_func_solid_Plus_template<Argb32Operations>(dest, length, color, const_alpha);
 }
 
-void QT_FASTCALL comp_func_solid_Plus_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+void QT_FASTCALL comp_func_Plus(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
-    comp_func_solid_Plus_template<Rgba64Operations>(dest, length, color, const_alpha);
+    comp_func_Plus_template<Argb32Operations>(dest, src, length, const_alpha);
 }
 
-void QT_FASTCALL comp_func_Plus(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_Plus_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
-    comp_func_Plus_template<Argb32Operations>(dest, src, length, const_alpha);
+    comp_func_solid_Plus_template<Rgba64Operations>(dest, length, color, const_alpha);
 }
 
 void QT_FASTCALL comp_func_Plus_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     comp_func_Plus_template<Rgba64Operations>(dest, src, length, const_alpha);
 }
+#endif
 
 /*
     Dca' = Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -1101,11 +1130,6 @@ static inline int multiply_op(int dst, int src, int da, int sa)
     return qt_div_255(src * dst + src * (255 - da) + dst * (255 - sa));
 }
 
-static inline uint multiply_op_rgb64(uint dst, uint src, uint da, uint sa)
-{
-    return qt_div_65535(src * dst + src * (65535 - da) + dst * (65535 - sa));
-}
-
 template <typename T>
 static inline void comp_func_solid_Multiply_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1129,6 +1153,20 @@ static inline void comp_func_solid_Multiply_impl(uint *dest, int length, uint co
     }
 }
 
+void QT_FASTCALL comp_func_solid_Multiply(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Multiply_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Multiply_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint multiply_op_rgb64(uint dst, uint src, uint da, uint sa)
+{
+    return qt_div_65535(src * dst + src * (65535 - da) + dst * (65535 - sa));
+}
+
 template <typename T>
 static inline void comp_func_solid_Multiply_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1152,14 +1190,6 @@ static inline void comp_func_solid_Multiply_impl(QRgba64 *dest, int length, QRgb
     }
 }
 
-void QT_FASTCALL comp_func_solid_Multiply(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Multiply_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Multiply_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Multiply_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1167,6 +1197,7 @@ void QT_FASTCALL comp_func_solid_Multiply_rgb64(QRgba64 *dest, int length, QRgba
     else
         comp_func_solid_Multiply_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Multiply_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1189,6 +1220,15 @@ static inline void comp_func_Multiply_impl(uint *Q_DECL_RESTRICT dest, const uin
     }
 }
 
+void QT_FASTCALL comp_func_Multiply(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Multiply_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Multiply_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Multiply_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1210,14 +1250,6 @@ static inline void comp_func_Multiply_impl(QRgba64 *Q_DECL_RESTRICT dest, const
     }
 }
 
-void QT_FASTCALL comp_func_Multiply(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Multiply_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Multiply_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Multiply_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1225,6 +1257,7 @@ void QT_FASTCALL comp_func_Multiply_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const Q
     else
         comp_func_Multiply_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     Dca' = (Sca.Da + Dca.Sa - Sca.Dca) + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -1253,6 +1286,15 @@ static inline void comp_func_solid_Screen_impl(uint *dest, int length, uint colo
     }
 }
 
+void QT_FASTCALL comp_func_solid_Screen(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Screen_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Screen_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_solid_Screen_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1276,14 +1318,6 @@ static inline void comp_func_solid_Screen_impl(QRgba64 *dest, int length, QRgba6
     }
 }
 
-void QT_FASTCALL comp_func_solid_Screen(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Screen_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Screen_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Screen_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1291,6 +1325,7 @@ void QT_FASTCALL comp_func_solid_Screen_rgb64(QRgba64 *dest, int length, QRgba64
     else
         comp_func_solid_Screen_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Screen_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1313,6 +1348,15 @@ static inline void comp_func_Screen_impl(uint *Q_DECL_RESTRICT dest, const uint
     }
 }
 
+void QT_FASTCALL comp_func_Screen(uint *dest, const uint *src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Screen_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Screen_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Screen_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1334,14 +1378,6 @@ static inline void comp_func_Screen_impl(QRgba64 *Q_DECL_RESTRICT dest, const QR
     }
 }
 
-void QT_FASTCALL comp_func_Screen(uint *dest, const uint *src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Screen_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Screen_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Screen_rgb64(QRgba64 *dest, const QRgba64 *src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1349,6 +1385,7 @@ void QT_FASTCALL comp_func_Screen_rgb64(QRgba64 *dest, const QRgba64 *src, int l
     else
         comp_func_Screen_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     if 2.Dca < Da
@@ -1365,15 +1402,6 @@ static inline int overlay_op(int dst, int src, int da, int sa)
         return qt_div_255(sa * da - 2 * (da - dst) * (sa - src) + temp);
 }
 
-static inline uint overlay_op_rgb64(uint dst, uint src, uint da, uint sa)
-{
-    const uint temp = src * (65535 - da) + dst * (65535 - sa);
-    if (2 * dst < da)
-        return qt_div_65535(2 * src * dst + temp);
-    else
-        return qt_div_65535(sa * da - 2 * (da - dst) * (sa - src) + temp);
-}
-
 template <typename T>
 static inline void comp_func_solid_Overlay_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1397,6 +1425,24 @@ static inline void comp_func_solid_Overlay_impl(uint *dest, int length, uint col
     }
 }
 
+void QT_FASTCALL comp_func_solid_Overlay(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Overlay_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Overlay_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint overlay_op_rgb64(uint dst, uint src, uint da, uint sa)
+{
+    const uint temp = src * (65535 - da) + dst * (65535 - sa);
+    if (2 * dst < da)
+        return qt_div_65535(2 * src * dst + temp);
+    else
+        return qt_div_65535(sa * da - 2 * (da - dst) * (sa - src) + temp);
+}
+
 template <typename T>
 static inline void comp_func_solid_Overlay_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1420,14 +1466,6 @@ static inline void comp_func_solid_Overlay_impl(QRgba64 *dest, int length, QRgba
     }
 }
 
-void QT_FASTCALL comp_func_solid_Overlay(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Overlay_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Overlay_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Overlay_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1435,6 +1473,7 @@ void QT_FASTCALL comp_func_solid_Overlay_rgb64(QRgba64 *dest, int length, QRgba6
     else
         comp_func_solid_Overlay_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Overlay_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1457,6 +1496,15 @@ static inline void comp_func_Overlay_impl(uint *Q_DECL_RESTRICT dest, const uint
     }
 }
 
+void QT_FASTCALL comp_func_Overlay(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Overlay_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Overlay_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Overlay_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1478,14 +1526,6 @@ static inline void comp_func_Overlay_impl(QRgba64 *Q_DECL_RESTRICT dest, const Q
     }
 }
 
-void QT_FASTCALL comp_func_Overlay(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Overlay_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Overlay_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Overlay_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1493,6 +1533,7 @@ void QT_FASTCALL comp_func_Overlay_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QR
     else
         comp_func_Overlay_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     Dca' = min(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -1503,11 +1544,6 @@ static inline int darken_op(int dst, int src, int da, int sa)
     return qt_div_255(qMin(src * da, dst * sa) + src * (255 - da) + dst * (255 - sa));
 }
 
-static inline uint darken_op_rgb64(uint dst, uint src, uint da, uint sa)
-{
-    return qt_div_65535(qMin(src * da, dst * sa) + src * (65535 - da) + dst * (65535 - sa));
-}
-
 template <typename T>
 static inline void comp_func_solid_Darken_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1531,6 +1567,20 @@ static inline void comp_func_solid_Darken_impl(uint *dest, int length, uint colo
     }
 }
 
+void QT_FASTCALL comp_func_solid_Darken(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Darken_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Darken_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint darken_op_rgb64(uint dst, uint src, uint da, uint sa)
+{
+    return qt_div_65535(qMin(src * da, dst * sa) + src * (65535 - da) + dst * (65535 - sa));
+}
+
 template <typename T>
 static inline void comp_func_solid_Darken_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1554,14 +1604,6 @@ static inline void comp_func_solid_Darken_impl(QRgba64 *dest, int length, QRgba6
     }
 }
 
-void QT_FASTCALL comp_func_solid_Darken(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Darken_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Darken_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Darken_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1569,6 +1611,7 @@ void QT_FASTCALL comp_func_solid_Darken_rgb64(QRgba64 *dest, int length, QRgba64
     else
         comp_func_solid_Darken_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Darken_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1591,6 +1634,15 @@ static inline void comp_func_Darken_impl(uint *Q_DECL_RESTRICT dest, const uint
     }
 }
 
+void QT_FASTCALL comp_func_Darken(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Darken_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Darken_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Darken_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1612,14 +1664,6 @@ static inline void comp_func_Darken_impl(QRgba64 *Q_DECL_RESTRICT dest, const QR
     }
 }
 
-void QT_FASTCALL comp_func_Darken(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Darken_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Darken_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Darken_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1627,6 +1671,7 @@ void QT_FASTCALL comp_func_Darken_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRg
     else
         comp_func_Darken_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
    Dca' = max(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -1637,11 +1682,6 @@ static inline int lighten_op(int dst, int src, int da, int sa)
     return qt_div_255(qMax(src * da, dst * sa) + src * (255 - da) + dst * (255 - sa));
 }
 
-static inline uint lighten_op_rgb64(uint dst, uint src, uint da, uint sa)
-{
-    return qt_div_65535(qMax(src * da, dst * sa) + src * (65535 - da) + dst * (65535 - sa));
-}
-
 template <typename T>
 static inline void comp_func_solid_Lighten_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1665,6 +1705,21 @@ static inline void comp_func_solid_Lighten_impl(uint *dest, int length, uint col
     }
 }
 
+void QT_FASTCALL comp_func_solid_Lighten(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Lighten_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Lighten_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+
+#if QT_CONFIG(raster_64bit)
+static inline uint lighten_op_rgb64(uint dst, uint src, uint da, uint sa)
+{
+    return qt_div_65535(qMax(src * da, dst * sa) + src * (65535 - da) + dst * (65535 - sa));
+}
+
 template <typename T>
 static inline void comp_func_solid_Lighten_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1688,14 +1743,6 @@ static inline void comp_func_solid_Lighten_impl(QRgba64 *dest, int length, QRgba
     }
 }
 
-void QT_FASTCALL comp_func_solid_Lighten(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Lighten_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Lighten_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Lighten_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1703,6 +1750,7 @@ void QT_FASTCALL comp_func_solid_Lighten_rgb64(QRgba64 *dest, int length, QRgba6
     else
         comp_func_solid_Lighten_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Lighten_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1725,6 +1773,15 @@ static inline void comp_func_Lighten_impl(uint *Q_DECL_RESTRICT dest, const uint
     }
 }
 
+void QT_FASTCALL comp_func_Lighten(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Lighten_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Lighten_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Lighten_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1746,14 +1803,6 @@ static inline void comp_func_Lighten_impl(QRgba64 *Q_DECL_RESTRICT dest, const Q
     }
 }
 
-void QT_FASTCALL comp_func_Lighten(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Lighten_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Lighten_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Lighten_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1761,6 +1810,7 @@ void QT_FASTCALL comp_func_Lighten_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QR
     else
         comp_func_Lighten_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
    if Sca.Da + Dca.Sa >= Sa.Da
@@ -1781,19 +1831,6 @@ static inline int color_dodge_op(int dst, int src, int da, int sa)
         return qt_div_255(255 * dst_sa / (255 - 255 * src / sa) + temp);
 }
 
-static inline uint color_dodge_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
-{
-    const qint64 sa_da = sa * da;
-    const qint64 dst_sa = dst * sa;
-    const qint64 src_da = src * da;
-
-    const qint64 temp = src * (65535 - da) + dst * (65535 - sa);
-    if (src_da + dst_sa >= sa_da)
-        return qt_div_65535(sa_da + temp);
-    else
-        return qt_div_65535(65535 * dst_sa / (65535 - 65535 * src / sa) + temp);
-}
-
 template <typename T>
 static inline void comp_func_solid_ColorDodge_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1817,6 +1854,28 @@ static inline void comp_func_solid_ColorDodge_impl(uint *dest, int length, uint
     }
 }
 
+void QT_FASTCALL comp_func_solid_ColorDodge(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_ColorDodge_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_ColorDodge_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint color_dodge_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
+{
+    const qint64 sa_da = sa * da;
+    const qint64 dst_sa = dst * sa;
+    const qint64 src_da = src * da;
+
+    const qint64 temp = src * (65535 - da) + dst * (65535 - sa);
+    if (src_da + dst_sa >= sa_da)
+        return qt_div_65535(sa_da + temp);
+    else
+        return qt_div_65535(65535 * dst_sa / (65535 - 65535 * src / sa) + temp);
+}
+
 template <typename T>
 static inline void comp_func_solid_ColorDodge_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1840,14 +1899,6 @@ static inline void comp_func_solid_ColorDodge_impl(QRgba64 *dest, int length, QR
     }
 }
 
-void QT_FASTCALL comp_func_solid_ColorDodge(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_ColorDodge_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_ColorDodge_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_ColorDodge_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1855,6 +1906,7 @@ void QT_FASTCALL comp_func_solid_ColorDodge_rgb64(QRgba64 *dest, int length, QRg
     else
         comp_func_solid_ColorDodge_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_ColorDodge_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -1877,6 +1929,15 @@ static inline void comp_func_ColorDodge_impl(uint *Q_DECL_RESTRICT dest, const u
     }
 }
 
+void QT_FASTCALL comp_func_ColorDodge(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_ColorDodge_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_ColorDodge_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_ColorDodge_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -1898,14 +1959,6 @@ static inline void comp_func_ColorDodge_impl(QRgba64 *Q_DECL_RESTRICT dest, cons
     }
 }
 
-void QT_FASTCALL comp_func_ColorDodge(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_ColorDodge_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_ColorDodge_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_ColorDodge_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -1913,6 +1966,7 @@ void QT_FASTCALL comp_func_ColorDodge_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_ColorDodge_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
    if Sca.Da + Dca.Sa <= Sa.Da
@@ -1933,19 +1987,6 @@ static inline int color_burn_op(int dst, int src, int da, int sa)
     return qt_div_255(sa * (src_da + dst_sa - sa_da) / src + temp);
 }
 
-static inline uint color_burn_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
-{
-    const qint64 src_da = src * da;
-    const qint64 dst_sa = dst * sa;
-    const qint64 sa_da = sa * da;
-
-    const qint64 temp = src * (65535 - da) + dst * (65535 - sa);
-
-    if (src == 0 || src_da + dst_sa <= sa_da)
-        return qt_div_65535(temp);
-    return qt_div_65535(sa * (src_da + dst_sa - sa_da) / src + temp);
-}
-
 template <typename T>
 static inline void comp_func_solid_ColorBurn_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -1969,6 +2010,28 @@ static inline void comp_func_solid_ColorBurn_impl(uint *dest, int length, uint c
     }
 }
 
+void QT_FASTCALL comp_func_solid_ColorBurn(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_ColorBurn_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_ColorBurn_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint color_burn_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
+{
+    const qint64 src_da = src * da;
+    const qint64 dst_sa = dst * sa;
+    const qint64 sa_da = sa * da;
+
+    const qint64 temp = src * (65535 - da) + dst * (65535 - sa);
+
+    if (src == 0 || src_da + dst_sa <= sa_da)
+        return qt_div_65535(temp);
+    return qt_div_65535(sa * (src_da + dst_sa - sa_da) / src + temp);
+}
+
 template <typename T>
 static inline void comp_func_solid_ColorBurn_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -1992,14 +2055,6 @@ static inline void comp_func_solid_ColorBurn_impl(QRgba64 *dest, int length, QRg
     }
 }
 
-void QT_FASTCALL comp_func_solid_ColorBurn(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_ColorBurn_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_ColorBurn_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_ColorBurn_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2007,6 +2062,7 @@ void QT_FASTCALL comp_func_solid_ColorBurn_rgb64(QRgba64 *dest, int length, QRgb
     else
         comp_func_solid_ColorBurn_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_ColorBurn_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -2029,6 +2085,15 @@ static inline void comp_func_ColorBurn_impl(uint *Q_DECL_RESTRICT dest, const ui
     }
 }
 
+void QT_FASTCALL comp_func_ColorBurn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_ColorBurn_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_ColorBurn_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_ColorBurn_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2050,14 +2115,6 @@ static inline void comp_func_ColorBurn_impl(QRgba64 *Q_DECL_RESTRICT dest, const
     }
 }
 
-void QT_FASTCALL comp_func_ColorBurn(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_ColorBurn_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_ColorBurn_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_ColorBurn_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2065,6 +2122,7 @@ void QT_FASTCALL comp_func_ColorBurn_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_ColorBurn_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     if 2.Sca < Sa
@@ -2082,16 +2140,6 @@ static inline uint hardlight_op(int dst, int src, int da, int sa)
         return qt_div_255(sa * da - 2 * (da - dst) * (sa - src) + temp);
 }
 
-static inline uint hardlight_op_rgb64(uint dst, uint src, uint da, uint sa)
-{
-    const uint temp = src * (65535 - da) + dst * (65535 - sa);
-
-    if (2 * src < sa)
-        return qt_div_65535(2 * src * dst + temp);
-    else
-        return qt_div_65535(sa * da - 2 * (da - dst) * (sa - src) + temp);
-}
-
 template <typename T>
 static inline void comp_func_solid_HardLight_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -2115,6 +2163,25 @@ static inline void comp_func_solid_HardLight_impl(uint *dest, int length, uint c
     }
 }
 
+void QT_FASTCALL comp_func_solid_HardLight(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_HardLight_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_HardLight_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint hardlight_op_rgb64(uint dst, uint src, uint da, uint sa)
+{
+    const uint temp = src * (65535 - da) + dst * (65535 - sa);
+
+    if (2 * src < sa)
+        return qt_div_65535(2 * src * dst + temp);
+    else
+        return qt_div_65535(sa * da - 2 * (da - dst) * (sa - src) + temp);
+}
+
 template <typename T>
 static inline void comp_func_solid_HardLight_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -2138,14 +2205,6 @@ static inline void comp_func_solid_HardLight_impl(QRgba64 *dest, int length, QRg
     }
 }
 
-void QT_FASTCALL comp_func_solid_HardLight(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_HardLight_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_HardLight_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_HardLight_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2153,6 +2212,7 @@ void QT_FASTCALL comp_func_solid_HardLight_rgb64(QRgba64 *dest, int length, QRgb
     else
         comp_func_solid_HardLight_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_HardLight_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -2175,6 +2235,15 @@ static inline void comp_func_HardLight_impl(uint *Q_DECL_RESTRICT dest, const ui
     }
 }
 
+void QT_FASTCALL comp_func_HardLight(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_HardLight_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_HardLight_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_HardLight_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2196,14 +2265,6 @@ static inline void comp_func_HardLight_impl(QRgba64 *Q_DECL_RESTRICT dest, const
     }
 }
 
-void QT_FASTCALL comp_func_HardLight(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_HardLight_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_HardLight_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_HardLight_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2211,6 +2272,7 @@ void QT_FASTCALL comp_func_HardLight_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_HardLight_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     if 2.Sca <= Sa
@@ -2235,22 +2297,6 @@ static inline int soft_light_op(int dst, int src, int da, int sa)
     }
 }
 
-static inline uint soft_light_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
-{
-    const qint64 src2 = src << 1;
-    const qint64 dst_np = da != 0 ? (65535 * dst) / da : 0;
-    const qint64 temp = (src * (65535 - da) + dst * (65535 - sa)) * 65535;
-    const qint64 factor = qint64(65535) * 65535;
-
-    if (src2 < sa)
-        return (dst * (sa * 65535 + (src2 - sa) * (65535 - dst_np)) + temp) / factor;
-    else if (4 * dst <= da)
-        return (dst * sa * 65535 + da * (src2 - sa) * ((((16 * dst_np - 12 * 65535) * dst_np + 3 * factor) * dst_np) / factor) + temp) / factor;
-    else {
-        return (dst * sa * 65535 + da * (src2 - sa) * (int(qSqrt(qreal(dst_np * 65535))) - dst_np) + temp) / factor;
-    }
-}
-
 template <typename T>
 static inline void comp_func_solid_SoftLight_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -2274,6 +2320,23 @@ static inline void comp_func_solid_SoftLight_impl(uint *dest, int length, uint c
     }
 }
 
+#if QT_CONFIG(raster_64bit)
+static inline uint soft_light_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
+{
+    const qint64 src2 = src << 1;
+    const qint64 dst_np = da != 0 ? (65535 * dst) / da : 0;
+    const qint64 temp = (src * (65535 - da) + dst * (65535 - sa)) * 65535;
+    const qint64 factor = qint64(65535) * 65535;
+
+    if (src2 < sa)
+        return (dst * (sa * 65535 + (src2 - sa) * (65535 - dst_np)) + temp) / factor;
+    else if (4 * dst <= da)
+        return (dst * sa * 65535 + da * (src2 - sa) * ((((16 * dst_np - 12 * 65535) * dst_np + 3 * factor) * dst_np) / factor) + temp) / factor;
+    else {
+        return (dst * sa * 65535 + da * (src2 - sa) * (int(qSqrt(qreal(dst_np * 65535))) - dst_np) + temp) / factor;
+    }
+}
+
 template <typename T>
 static inline void comp_func_solid_SoftLight_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -2296,6 +2359,7 @@ static inline void comp_func_solid_SoftLight_impl(QRgba64 *dest, int length, QRg
         coverage.store(&dest[i], qRgba64(r, g, b, a));
     }
 }
+#endif
 
 void QT_FASTCALL comp_func_solid_SoftLight(uint *dest, int length, uint color, uint const_alpha)
 {
@@ -2305,14 +2369,6 @@ void QT_FASTCALL comp_func_solid_SoftLight(uint *dest, int length, uint color, u
         comp_func_solid_SoftLight_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
 
-void QT_FASTCALL comp_func_solid_SoftLight_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_SoftLight_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_SoftLight_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 template <typename T>
 static inline void comp_func_SoftLight_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2334,6 +2390,23 @@ static inline void comp_func_SoftLight_impl(uint *Q_DECL_RESTRICT dest, const ui
     }
 }
 
+void QT_FASTCALL comp_func_SoftLight(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_SoftLight_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_SoftLight_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+void QT_FASTCALL comp_func_solid_SoftLight_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_SoftLight_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_SoftLight_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
 template <typename T>
 static inline void comp_func_SoftLight_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2355,14 +2428,6 @@ static inline void comp_func_SoftLight_impl(QRgba64 *Q_DECL_RESTRICT dest, const
     }
 }
 
-void QT_FASTCALL comp_func_SoftLight(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_SoftLight_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_SoftLight_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_SoftLight_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2370,6 +2435,7 @@ void QT_FASTCALL comp_func_SoftLight_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_SoftLight_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
    Dca' = abs(Dca.Sa - Sca.Da) + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -2380,11 +2446,6 @@ static inline int difference_op(int dst, int src, int da, int sa)
     return src + dst - qt_div_255(2 * qMin(src * da, dst * sa));
 }
 
-static inline uint difference_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
-{
-    return src + dst - qt_div_65535(2 * qMin(src * da, dst * sa));
-}
-
 template <typename T>
 static inline void comp_func_solid_Difference_impl(uint *dest, int length, uint color, const T &coverage)
 {
@@ -2408,6 +2469,20 @@ static inline void comp_func_solid_Difference_impl(uint *dest, int length, uint
     }
 }
 
+void QT_FASTCALL comp_func_solid_Difference(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Difference_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Difference_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline uint difference_op_rgb64(qint64 dst, qint64 src, qint64 da, qint64 sa)
+{
+    return src + dst - qt_div_65535(2 * qMin(src * da, dst * sa));
+}
+
 template <typename T>
 static inline void comp_func_solid_Difference_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -2431,14 +2506,6 @@ static inline void comp_func_solid_Difference_impl(QRgba64 *dest, int length, QR
     }
 }
 
-void QT_FASTCALL comp_func_solid_Difference(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Difference_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Difference_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Difference_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2446,6 +2513,7 @@ void QT_FASTCALL comp_func_solid_Difference_rgb64(QRgba64 *dest, int length, QRg
     else
         comp_func_solid_Difference_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Difference_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -2468,6 +2536,15 @@ static inline void comp_func_Difference_impl(uint *Q_DECL_RESTRICT dest, const u
     }
 }
 
+void QT_FASTCALL comp_func_Difference(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Difference_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Difference_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Difference_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2489,14 +2566,6 @@ static inline void comp_func_Difference_impl(QRgba64 *Q_DECL_RESTRICT dest, cons
     }
 }
 
-void QT_FASTCALL comp_func_Difference(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Difference_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Difference_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Difference_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2504,6 +2573,7 @@ void QT_FASTCALL comp_func_Difference_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_Difference_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 /*
     Dca' = (Sca.Da + Dca.Sa - 2.Sca.Dca) + Sca.(1 - Da) + Dca.(1 - Sa)
@@ -2531,6 +2601,15 @@ static inline void QT_FASTCALL comp_func_solid_Exclusion_impl(uint *dest, int le
     }
 }
 
+void QT_FASTCALL comp_func_solid_Exclusion(uint *dest, int length, uint color, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_solid_Exclusion_impl(dest, length, color, QFullCoverage());
+    else
+        comp_func_solid_Exclusion_impl(dest, length, color, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void QT_FASTCALL comp_func_solid_Exclusion_impl(QRgba64 *dest, int length, QRgba64 color, const T &coverage)
 {
@@ -2555,14 +2634,6 @@ static inline void QT_FASTCALL comp_func_solid_Exclusion_impl(QRgba64 *dest, int
 }
 
 
-void QT_FASTCALL comp_func_solid_Exclusion(uint *dest, int length, uint color, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_solid_Exclusion_impl(dest, length, color, QFullCoverage());
-    else
-        comp_func_solid_Exclusion_impl(dest, length, color, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_solid_Exclusion_rgb64(QRgba64 *dest, int length, QRgba64 color, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2570,6 +2641,7 @@ void QT_FASTCALL comp_func_solid_Exclusion_rgb64(QRgba64 *dest, int length, QRgb
     else
         comp_func_solid_Exclusion_impl(dest, length, color, QPartialCoverage(const_alpha));
 }
+#endif
 
 template <typename T>
 static inline void comp_func_Exclusion_impl(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, const T &coverage)
@@ -2592,6 +2664,15 @@ static inline void comp_func_Exclusion_impl(uint *Q_DECL_RESTRICT dest, const ui
     }
 }
 
+void QT_FASTCALL comp_func_Exclusion(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
+{
+    if (const_alpha == 255)
+        comp_func_Exclusion_impl(dest, src, length, QFullCoverage());
+    else
+        comp_func_Exclusion_impl(dest, src, length, QPartialCoverage(const_alpha));
+}
+
+#if QT_CONFIG(raster_64bit)
 template <typename T>
 static inline void comp_func_Exclusion_impl(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, const T &coverage)
 {
@@ -2613,14 +2694,6 @@ static inline void comp_func_Exclusion_impl(QRgba64 *Q_DECL_RESTRICT dest, const
     }
 }
 
-void QT_FASTCALL comp_func_Exclusion(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha)
-{
-    if (const_alpha == 255)
-        comp_func_Exclusion_impl(dest, src, length, QFullCoverage());
-    else
-        comp_func_Exclusion_impl(dest, src, length, QPartialCoverage(const_alpha));
-}
-
 void QT_FASTCALL comp_func_Exclusion_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const QRgba64 *Q_DECL_RESTRICT src, int length, uint const_alpha)
 {
     if (const_alpha == 255)
@@ -2628,6 +2701,7 @@ void QT_FASTCALL comp_func_Exclusion_rgb64(QRgba64 *Q_DECL_RESTRICT dest, const
     else
         comp_func_Exclusion_impl(dest, src, length, QPartialCoverage(const_alpha));
 }
+#endif
 
 void QT_FASTCALL rasterop_solid_SourceOrDestination(uint *dest,
                                                     int length,
@@ -2977,6 +3051,7 @@ CompositionFunctionSolid qt_functionForModeSolid_C[] = {
 };
 
 CompositionFunctionSolid64 qt_functionForModeSolid64_C[] = {
+#if QT_CONFIG(raster_64bit)
         comp_func_solid_SourceOver_rgb64,
         comp_func_solid_DestinationOver_rgb64,
         comp_func_solid_Clear_rgb64,
@@ -3001,6 +3076,10 @@ CompositionFunctionSolid64 qt_functionForModeSolid64_C[] = {
         comp_func_solid_SoftLight_rgb64,
         comp_func_solid_Difference_rgb64,
         comp_func_solid_Exclusion_rgb64,
+#else
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+#endif
         0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0
 };
@@ -3047,6 +3126,7 @@ CompositionFunction qt_functionForMode_C[] = {
 };
 
 CompositionFunction64 qt_functionForMode64_C[] = {
+#if QT_CONFIG(raster_64bit)
         comp_func_SourceOver_rgb64,
         comp_func_DestinationOver_rgb64,
         comp_func_Clear_rgb64,
@@ -3071,6 +3151,10 @@ CompositionFunction64 qt_functionForMode64_C[] = {
         comp_func_SoftLight_rgb64,
         comp_func_Difference_rgb64,
         comp_func_Exclusion_rgb64,
+#else
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+#endif
         0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0
 };
diff --git a/src/gui/painting/qcosmeticstroker_p.h b/src/gui/painting/qcosmeticstroker_p.h
index 082ddee30f..8571b0476a 100644
--- a/src/gui/painting/qcosmeticstroker_p.h
+++ b/src/gui/painting/qcosmeticstroker_p.h
@@ -98,8 +98,8 @@ public:
         : state(s),
           deviceRect(dr_unclipped),
           clip(dr),
-          pattern(0),
-          reversePattern(0),
+          pattern(nullptr),
+          reversePattern(nullptr),
           patternSize(0),
           patternLength(0),
           patternOffset(0),
diff --git a/src/gui/painting/qdatabuffer_p.h b/src/gui/painting/qdatabuffer_p.h
index 28d5f6d6c5..181d19da0b 100644
--- a/src/gui/painting/qdatabuffer_p.h
+++ b/src/gui/painting/qdatabuffer_p.h
@@ -69,7 +69,7 @@ public:
             buffer = (Type*) malloc(capacity * sizeof(Type));
             Q_CHECK_PTR(buffer);
         } else {
-            buffer = 0;
+            buffer = nullptr;
         }
         siz = 0;
     }
@@ -128,7 +128,7 @@ public:
             Q_CHECK_PTR(buffer);
         } else {
             free(buffer);
-            buffer = 0;
+            buffer = nullptr;
         }
     }
 
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 2dd18f6dfc..ac15d8f4f4 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -43,7 +43,7 @@
 #include <qstylehints.h>
 #include <qguiapplication.h>
 #include <qatomic.h>
-#include <private/qcolorprofile_p.h>
+#include <private/qcolortrclut_p.h>
 #include <private/qdrawhelper_p.h>
 #include <private/qpaintengine_raster_p.h>
 #include <private/qpainter_p.h>
@@ -1117,6 +1117,7 @@ static const QRgba64 *QT_FASTCALL fetchARGB32PMToRGBA64PM(QRgba64 *buffer, const
     return convertARGB32PMToRGBA64PM(buffer, reinterpret_cast<const uint *>(src) + index, count, nullptr, nullptr);
 }
 
+#if QT_CONFIG(raster_64bit)
 static void convertRGBA64ToRGBA64PM(QRgba64 *buffer, int count)
 {
     for (int i = 0; i < count; ++i)
@@ -1126,6 +1127,7 @@ static void convertRGBA64ToRGBA64PM(QRgba64 *buffer, int count)
 static void convertRGBA64PMToRGBA64PM(QRgba64 *, int)
 {
 }
+#endif
 
 static const QRgba64 *QT_FASTCALL fetchRGBA64ToRGBA64PM(QRgba64 *buffer, const uchar *src, int index, int count,
                                                         const QVector<QRgb> *, QDitherInfo *)
@@ -1699,22 +1701,6 @@ static uint *QT_FASTCALL destFetchUndefined(uint *buffer, QRasterBuffer *, int,
     return buffer;
 }
 
-static QRgba64 *QT_FASTCALL destFetch64(QRgba64 *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length)
-{
-    const QPixelLayout *layout = &qPixelLayouts[rasterBuffer->format];
-    return const_cast<QRgba64 *>(layout->fetchToRGBA64PM(buffer, rasterBuffer->scanLine(y), x, length, nullptr, nullptr));
-}
-
-static QRgba64 * QT_FASTCALL destFetchRGB64(QRgba64 *, QRasterBuffer *rasterBuffer, int x, int y, int)
-{
-    return (QRgba64 *)rasterBuffer->scanLine(y) + x;
-}
-
-static QRgba64 * QT_FASTCALL destFetch64Undefined(QRgba64 *buffer, QRasterBuffer *, int, int, int)
-{
-    return buffer;
-}
-
 static DestFetchProc destFetchProc[QImage::NImageFormats] =
 {
     0,                  // Format_Invalid
@@ -1748,6 +1734,23 @@ static DestFetchProc destFetchProc[QImage::NImageFormats] =
     destFetch,          // Format_Grayscale16
 };
 
+#if QT_CONFIG(raster_64bit)
+static QRgba64 *QT_FASTCALL destFetch64(QRgba64 *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length)
+{
+    const QPixelLayout *layout = &qPixelLayouts[rasterBuffer->format];
+    return const_cast<QRgba64 *>(layout->fetchToRGBA64PM(buffer, rasterBuffer->scanLine(y), x, length, nullptr, nullptr));
+}
+
+static QRgba64 * QT_FASTCALL destFetchRGB64(QRgba64 *, QRasterBuffer *rasterBuffer, int x, int y, int)
+{
+    return (QRgba64 *)rasterBuffer->scanLine(y) + x;
+}
+
+static QRgba64 * QT_FASTCALL destFetch64Undefined(QRgba64 *buffer, QRasterBuffer *, int, int, int)
+{
+    return buffer;
+}
+
 static DestFetchProc64 destFetchProc64[QImage::NImageFormats] =
 {
     0,                  // Format_Invalid
@@ -1780,6 +1783,7 @@ static DestFetchProc64 destFetchProc64[QImage::NImageFormats] =
     destFetchRGB64,     // Format_RGBA64_Premultiplied
     destFetch64,        // Format_Grayscale16
 };
+#endif
 
 /*
    Returns the color in the mono destination color table
@@ -1887,21 +1891,6 @@ static void QT_FASTCALL destStore(QRasterBuffer *rasterBuffer, int x, int y, con
     store(dest, buffer, x, length, nullptr, nullptr);
 }
 
-static void QT_FASTCALL destStore64(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
-{
-    auto store = qStoreFromRGBA64PM[rasterBuffer->format];
-    uchar *dest = rasterBuffer->scanLine(y);
-    store(dest, buffer, x, length, nullptr, nullptr);
-}
-
-static void QT_FASTCALL destStore64RGBA64(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
-{
-    QRgba64 *dest = reinterpret_cast<QRgba64*>(rasterBuffer->scanLine(y)) + x;
-    for (int i = 0; i < length; ++i) {
-        dest[i] = buffer[i].unpremultiplied();
-    }
-}
-
 static DestStoreProc destStoreProc[QImage::NImageFormats] =
 {
     0,                  // Format_Invalid
@@ -1935,6 +1924,22 @@ static DestStoreProc destStoreProc[QImage::NImageFormats] =
     destStore,          // Format_Grayscale16
 };
 
+#if QT_CONFIG(raster_64bit)
+static void QT_FASTCALL destStore64(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
+{
+    auto store = qStoreFromRGBA64PM[rasterBuffer->format];
+    uchar *dest = rasterBuffer->scanLine(y);
+    store(dest, buffer, x, length, nullptr, nullptr);
+}
+
+static void QT_FASTCALL destStore64RGBA64(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
+{
+    QRgba64 *dest = reinterpret_cast<QRgba64*>(rasterBuffer->scanLine(y)) + x;
+    for (int i = 0; i < length; ++i) {
+        dest[i] = buffer[i].unpremultiplied();
+    }
+}
+
 static DestStoreProc64 destStoreProc64[QImage::NImageFormats] =
 {
     0,                  // Format_Invalid
@@ -1967,6 +1972,7 @@ static DestStoreProc64 destStoreProc64[QImage::NImageFormats] =
     0,                  // Format_RGBA64_Premultiplied
     destStore64,        // Format_Grayscale16
 };
+#endif
 
 /*
   Source fetches
@@ -2017,6 +2023,7 @@ static const uint *QT_FASTCALL fetchUntransformedRGB16(uint *buffer, const Opera
     return buffer;
 }
 
+#if QT_CONFIG(raster_64bit)
 static const QRgba64 *QT_FASTCALL fetchUntransformed64(QRgba64 *buffer, const Operator *,
                                                        const QSpanData *data, int y, int x, int length)
 {
@@ -2030,6 +2037,7 @@ static const QRgba64 *QT_FASTCALL fetchUntransformedRGBA64PM(QRgba64 *, const Op
     const uchar *scanLine = data->texture.scanLine(y);
     return reinterpret_cast<const QRgba64 *>(scanLine) + x;
 }
+#endif
 
 template<TextureBlendType blendType>
 inline void fetchTransformed_pixelBounds(int max, int l1, int l2, int &v)
@@ -2220,6 +2228,7 @@ static const uint *QT_FASTCALL fetchTransformed(uint *buffer, const Operator *,
     return buffer;
 }
 
+#if QT_CONFIG(raster_64bit)
 template<TextureBlendType blendType>  /* either BlendTransformed or BlendTransformedTiled */
 static const QRgba64 *QT_FASTCALL fetchTransformed64(QRgba64 *buffer, const Operator *, const QSpanData *data,
                                                      int y, int x, int length)
@@ -2240,6 +2249,7 @@ static const QRgba64 *QT_FASTCALL fetchTransformed64(QRgba64 *buffer, const Oper
         convertRGBA64ToRGBA64PM(buffer, length);
     return buffer;
 }
+#endif
 
 /** \internal
   interpolate 4 argb pixels with the distx and disty factor.
@@ -3541,6 +3551,7 @@ static const uint *QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Oper
     return buffer;
 }
 
+#if QT_CONFIG(raster_64bit)
 template<TextureBlendType blendType>
 static const QRgba64 *QT_FASTCALL fetchTransformedBilinear64_uint32(QRgba64 *buffer, const QSpanData *data,
                                                                     int y, int x, int length)
@@ -3861,6 +3872,7 @@ static const QRgba64 *QT_FASTCALL fetchTransformedBilinear64(QRgba64 *buffer, co
         return fetchTransformedBilinear64_uint64<blendType>(buffer, data, y, x, length);
     return fetchTransformedBilinear64_uint32<blendType>(buffer, data, y, x, length);
 }
+#endif
 
 // FetchUntransformed can have more specialized methods added depending on SIMD features.
 static SourceFetchProc sourceFetchUntransformed[QImage::NImageFormats] = {
@@ -3931,6 +3943,20 @@ static SourceFetchProc sourceFetchAny32[NBlendTypes] = {
     fetchTransformedBilinear<BlendTransformedBilinearTiled, QPixelLayout::BPP32>    // TransformedBilinearTiled
 };
 
+static inline SourceFetchProc getSourceFetch(TextureBlendType blendType, QImage::Format format)
+{
+    if (format == QImage::Format_RGB32 || format == QImage::Format_ARGB32_Premultiplied)
+        return sourceFetchARGB32PM[blendType];
+    if (blendType == BlendUntransformed || blendType == BlendTiled)
+        return sourceFetchUntransformed[format];
+    if (qPixelLayouts[format].bpp == QPixelLayout::BPP16)
+        return sourceFetchAny16[blendType];
+    if (qPixelLayouts[format].bpp == QPixelLayout::BPP32)
+        return sourceFetchAny32[blendType];
+    return sourceFetchGeneric[blendType];
+}
+
+#if QT_CONFIG(raster_64bit)
 static const SourceFetchProc64 sourceFetchGeneric64[NBlendTypes] = {
     fetchUntransformed64,                                     // Untransformed
     fetchUntransformed64,                                     // Tiled
@@ -3949,25 +3975,13 @@ static const SourceFetchProc64 sourceFetchRGBA64PM[NBlendTypes] = {
     fetchTransformedBilinear64<BlendTransformedBilinearTiled> // BilinearTiled
 };
 
-static inline SourceFetchProc getSourceFetch(TextureBlendType blendType, QImage::Format format)
-{
-    if (format == QImage::Format_RGB32 || format == QImage::Format_ARGB32_Premultiplied)
-        return sourceFetchARGB32PM[blendType];
-    if (blendType == BlendUntransformed || blendType == BlendTiled)
-        return sourceFetchUntransformed[format];
-    if (qPixelLayouts[format].bpp == QPixelLayout::BPP16)
-        return sourceFetchAny16[blendType];
-    if (qPixelLayouts[format].bpp == QPixelLayout::BPP32)
-        return sourceFetchAny32[blendType];
-    return sourceFetchGeneric[blendType];
-}
-
 static inline SourceFetchProc64 getSourceFetch64(TextureBlendType blendType, QImage::Format format)
 {
     if (format == QImage::Format_RGBX64 || format == QImage::Format_RGBA64_Premultiplied)
         return sourceFetchRGBA64PM[blendType];
     return sourceFetchGeneric64[blendType];
 }
+#endif
 
 
 #define FIXPT_BITS 8
@@ -3979,11 +3993,13 @@ static uint qt_gradient_pixel_fixed(const QGradientData *data, int fixed_pos)
     return data->colorTable32[qt_gradient_clamp(data, ipos)];
 }
 
+#if QT_CONFIG(raster_64bit)
 static const QRgba64& qt_gradient_pixel64_fixed(const QGradientData *data, int fixed_pos)
 {
     int ipos = (fixed_pos + (FIXPT_SIZE / 2)) >> FIXPT_BITS;
     return data->colorTable64[qt_gradient_clamp(data, ipos)];
 }
+#endif
 
 static void QT_FASTCALL getLinearGradientValues(LinearGradientValues *v, const QSpanData *data)
 {
@@ -4017,6 +4033,7 @@ public:
     }
 };
 
+#if QT_CONFIG(raster_64bit)
 class GradientBase64
 {
 public:
@@ -4035,6 +4052,7 @@ public:
         qt_memfill64((quint64*)buffer, fill, length);
     }
 };
+#endif
 
 template<class GradientBase, typename BlendType>
 static inline const BlendType * QT_FASTCALL qt_fetch_linear_gradient_template(
@@ -4112,11 +4130,13 @@ static const uint * QT_FASTCALL qt_fetch_linear_gradient(uint *buffer, const Ope
     return qt_fetch_linear_gradient_template<GradientBase32, uint>(buffer, op, data, y, x, length);
 }
 
+#if QT_CONFIG(raster_64bit)
 static const QRgba64 * QT_FASTCALL qt_fetch_linear_gradient_rgb64(QRgba64 *buffer, const Operator *op, const QSpanData *data,
                                                                  int y, int x, int length)
 {
     return qt_fetch_linear_gradient_template<GradientBase64, QRgba64>(buffer, op, data, y, x, length);
 }
+#endif
 
 static void QT_FASTCALL getRadialGradientValues(RadialGradientValues *v, const QSpanData *data)
 {
@@ -4178,11 +4198,13 @@ const uint * QT_FASTCALL qt_fetch_radial_gradient_plain(uint *buffer, const Oper
 
 static SourceFetchProc qt_fetch_radial_gradient = qt_fetch_radial_gradient_plain;
 
+#if QT_CONFIG(raster_64bit)
 const QRgba64 * QT_FASTCALL qt_fetch_radial_gradient_rgb64(QRgba64 *buffer, const Operator *op, const QSpanData *data,
                                                         int y, int x, int length)
 {
     return qt_fetch_radial_gradient_template<RadialFetchPlain<GradientBase64>, QRgba64>(buffer, op, data, y, x, length);
 }
+#endif
 
 template <class GradientBase, typename BlendType>
 static inline const BlendType * QT_FASTCALL qt_fetch_conical_gradient_template(
@@ -4241,23 +4263,29 @@ static const uint * QT_FASTCALL qt_fetch_conical_gradient(uint *buffer, const Op
     return qt_fetch_conical_gradient_template<GradientBase32, uint>(buffer, data, y, x, length);
 }
 
+#if QT_CONFIG(raster_64bit)
 static const QRgba64 * QT_FASTCALL qt_fetch_conical_gradient_rgb64(QRgba64 *buffer, const Operator *, const QSpanData *data,
                                                                    int y, int x, int length)
 {
     return qt_fetch_conical_gradient_template<GradientBase64, QRgba64>(buffer, data, y, x, length);
 }
+#endif
 
 extern CompositionFunctionSolid qt_functionForModeSolid_C[];
 extern CompositionFunctionSolid64 qt_functionForModeSolid64_C[];
 
 static const CompositionFunctionSolid *functionForModeSolid = qt_functionForModeSolid_C;
+#if QT_CONFIG(raster_64bit)
 static const CompositionFunctionSolid64 *functionForModeSolid64 = qt_functionForModeSolid64_C;
+#endif
 
 extern CompositionFunction qt_functionForMode_C[];
 extern CompositionFunction64 qt_functionForMode64_C[];
 
 static const CompositionFunction *functionForMode = qt_functionForMode_C;
+#if QT_CONFIG(raster_64bit)
 static const CompositionFunction64 *functionForMode64 = qt_functionForMode64_C;
+#endif
 
 static TextureBlendType getBlendType(const QSpanData *data)
 {
@@ -4289,41 +4317,58 @@ static inline Operator getOperator(const QSpanData *data, const QSpan *spans, in
     case QSpanData::Solid:
         solidSource = data->solidColor.isOpaque();
         op.srcFetch = 0;
+#if QT_CONFIG(raster_64bit)
         op.srcFetch64 = 0;
+#endif
         break;
     case QSpanData::LinearGradient:
         solidSource = !data->gradient.alphaColor;
         getLinearGradientValues(&op.linear, data);
         op.srcFetch = qt_fetch_linear_gradient;
+#if QT_CONFIG(raster_64bit)
         op.srcFetch64 = qt_fetch_linear_gradient_rgb64;
+#endif
         break;
     case QSpanData::RadialGradient:
         solidSource = !data->gradient.alphaColor;
         getRadialGradientValues(&op.radial, data);
         op.srcFetch = qt_fetch_radial_gradient;
+#if QT_CONFIG(raster_64bit)
         op.srcFetch64 = qt_fetch_radial_gradient_rgb64;
+#endif
         break;
     case QSpanData::ConicalGradient:
         solidSource = !data->gradient.alphaColor;
         op.srcFetch = qt_fetch_conical_gradient;
+#if QT_CONFIG(raster_64bit)
         op.srcFetch64 = qt_fetch_conical_gradient_rgb64;
+#endif
         break;
     case QSpanData::Texture:
         solidSource = !data->texture.hasAlpha;
         op.srcFetch = getSourceFetch(getBlendType(data), data->texture.format);
+#if QT_CONFIG(raster_64bit)
         op.srcFetch64 = getSourceFetch64(getBlendType(data), data->texture.format);;
+#endif
         break;
     default:
         Q_UNREACHABLE();
         break;
     }
+#if !QT_CONFIG(raster_64bit)
+    op.srcFetch64 = 0;
+#endif
 
     op.mode = data->rasterBuffer->compositionMode;
     if (op.mode == QPainter::CompositionMode_SourceOver && solidSource)
         op.mode = QPainter::CompositionMode_Source;
 
     op.destFetch = destFetchProc[data->rasterBuffer->format];
+#if QT_CONFIG(raster_64bit)
     op.destFetch64 = destFetchProc64[data->rasterBuffer->format];
+#else
+    op.destFetch64 = 0;
+#endif
     if (op.mode == QPainter::CompositionMode_Source &&
             (data->type != QSpanData::Texture || data->texture.const_alpha == 256)) {
         const QSpan *lastSpan = spans + spanCount;
@@ -4340,18 +4385,25 @@ static inline Operator getOperator(const QSpanData *data, const QSpan *spans, in
             // But don't clear passthrough destFetch as they are just as fast and save destStore.
             if (op.destFetch != destFetchARGB32P)
                 op.destFetch = destFetchUndefined;
+#if QT_CONFIG(raster_64bit)
             if (op.destFetch64 != destFetchRGB64)
                 op.destFetch64 = destFetch64Undefined;
+#endif
         }
     }
 
     op.destStore = destStoreProc[data->rasterBuffer->format];
-    op.destStore64 = destStoreProc64[data->rasterBuffer->format];
-
     op.funcSolid = functionForModeSolid[op.mode];
-    op.funcSolid64 = functionForModeSolid64[op.mode];
     op.func = functionForMode[op.mode];
+#if QT_CONFIG(raster_64bit)
+    op.destStore64 = destStoreProc64[data->rasterBuffer->format];
+    op.funcSolid64 = functionForModeSolid64[op.mode];
     op.func64 = functionForMode64[op.mode];
+#else
+    op.destStore64 = 0;
+    op.funcSolid64 = 0;
+    op.func64 = 0;
+#endif
 
     return op;
 }
@@ -4458,6 +4510,7 @@ static void blend_color_argb(int count, const QSpan *spans, void *userData)
 
 void blend_color_generic_rgb64(int count, const QSpan *spans, void *userData)
 {
+#if QT_CONFIG(raster_64bit)
     QSpanData *data = reinterpret_cast<QSpanData *>(userData);
     Operator op = getOperator(data, nullptr, 0);
     if (!op.funcSolid64) {
@@ -4492,6 +4545,9 @@ void blend_color_generic_rgb64(int count, const QSpan *spans, void *userData)
         }
         ++spans;
     }
+#else
+    blend_color_generic(count, spans, userData);
+#endif
 }
 
 static void blend_color_rgb16(int count, const QSpan *spans, void *userData)
@@ -4665,6 +4721,7 @@ public:
     }
 };
 
+#if QT_CONFIG(raster_64bit)
 class BlendSrcGenericRGB64 : public QBlendBase<QRgba64>
 {
 public:
@@ -4695,6 +4752,7 @@ public:
             op.destStore64(data->rasterBuffer, x, y, dest, len);
     }
 };
+#endif
 
 static void blend_src_generic(int count, const QSpan *spans, void *userData)
 {
@@ -4703,6 +4761,7 @@ static void blend_src_generic(int count, const QSpan *spans, void *userData)
     handleSpans(count, spans, data, blend);
 }
 
+#if QT_CONFIG(raster_64bit)
 static void blend_src_generic_rgb64(int count, const QSpan *spans, void *userData)
 {
     QSpanData *data = reinterpret_cast<QSpanData *>(userData);
@@ -4716,6 +4775,7 @@ static void blend_src_generic_rgb64(int count, const QSpan *spans, void *userDat
         handleSpans(count, spans, data, blend32);
     }
 }
+#endif
 
 static void blend_untransformed_generic(int count, const QSpan *spans, void *userData)
 {
@@ -4762,6 +4822,7 @@ static void blend_untransformed_generic(int count, const QSpan *spans, void *use
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 static void blend_untransformed_generic_rgb64(int count, const QSpan *spans, void *userData)
 {
     QSpanData *data = reinterpret_cast<QSpanData *>(userData);
@@ -4810,6 +4871,7 @@ static void blend_untransformed_generic_rgb64(int count, const QSpan *spans, voi
         ++spans;
     }
 }
+#endif
 
 static void blend_untransformed_argb(int count, const QSpan *spans, void *userData)
 {
@@ -5004,6 +5066,7 @@ static void blend_tiled_generic(int count, const QSpan *spans, void *userData)
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 static void blend_tiled_generic_rgb64(int count, const QSpan *spans, void *userData)
 {
     QSpanData *data = reinterpret_cast<QSpanData *>(userData);
@@ -5099,6 +5162,7 @@ static void blend_tiled_generic_rgb64(int count, const QSpan *spans, void *userD
         ++spans;
     }
 }
+#endif
 
 static void blend_tiled_argb(int count, const QSpan *spans, void *userData)
 {
@@ -5275,6 +5339,7 @@ static const ProcessSpans processTextureSpansGeneric[NBlendTypes] = {
     blend_src_generic                   // TransformedBilinearTiled
 };
 
+#if QT_CONFIG(raster_64bit)
 static const ProcessSpans processTextureSpansGeneric64[NBlendTypes] = {
     blend_untransformed_generic_rgb64,  // Untransformed
     blend_tiled_generic_rgb64,          // Tiled
@@ -5283,6 +5348,7 @@ static const ProcessSpans processTextureSpansGeneric64[NBlendTypes] = {
     blend_src_generic_rgb64,            // TransformedBilinear
     blend_src_generic_rgb64             // TransformedBilinearTiled
 };
+#endif
 
 void qBlendTexture(int count, const QSpan *spans, void *userData)
 {
@@ -5296,6 +5362,7 @@ void qBlendTexture(int count, const QSpan *spans, void *userData)
     case QImage::Format_RGB16:
         proc = processTextureSpansRGB16[blendType];
         break;
+#if QT_CONFIG(raster_64bit)
 #if defined(__SSE2__) || defined(__ARM_NEON__) || (Q_PROCESSOR_WORDSIZE == 8)
     case QImage::Format_ARGB32:
     case QImage::Format_RGBA8888:
@@ -5310,6 +5377,7 @@ void qBlendTexture(int count, const QSpan *spans, void *userData)
     case QImage::Format_Grayscale16:
         proc = processTextureSpansGeneric64[blendType];
         break;
+#endif // QT_CONFIG(raster_64bit)
     case QImage::Format_Invalid:
         Q_UNREACHABLE();
         return;
@@ -5377,7 +5445,11 @@ static void blend_vertical_gradient(int count, const QSpan *spans, void *userDat
     while (count--) {
         int y = spans->y;
 
+#if QT_CONFIG(raster_64bit)
         data->solidColor = qt_gradient_pixel64_fixed(&data->gradient, yinc * y + off);
+#else
+        data->solidColor = QRgba64::fromArgb32(qt_gradient_pixel_fixed(&data->gradient, yinc * y + off));
+#endif
         blend_color(1, spans, userData);
         ++spans;
     }
@@ -5400,6 +5472,7 @@ void qBlendGradient(int count, const QSpan *spans, void *userData)
         if (isVerticalGradient)
             return blend_vertical_gradient_argb(count, spans, userData);
         return blend_src_generic(count, spans, userData);
+#if QT_CONFIG(raster_64bit)
 #if defined(__SSE2__) || defined(__ARM_NEON__) || (Q_PROCESSOR_WORDSIZE == 8)
     case QImage::Format_ARGB32:
     case QImage::Format_RGBA8888:
@@ -5414,6 +5487,7 @@ void qBlendGradient(int count, const QSpan *spans, void *userData)
         if (isVerticalGradient)
             return blend_vertical_gradient<blend_color_generic_rgb64>(count, spans, userData);
         return blend_src_generic_rgb64(count, spans, userData);
+#endif // QT_CONFIG(raster_64bit)
     case QImage::Format_Invalid:
         break;
     default:
@@ -5523,7 +5597,36 @@ inline static void qt_bitmapblit_quint16(QRasterBuffer *rasterBuffer,
                                     map, mapWidth, mapHeight, mapStride);
 }
 
-static inline void alphamapblend_generic(int coverage, QRgba64 *dest, int x, const QRgba64 &srcLinear, const QRgba64 &src, const QColorProfile *colorProfile)
+static inline void grayBlendPixel(quint32 *dst, int coverage, QRgba64 srcLinear, const QColorTrcLut *colorProfile)
+{
+    // Do a gammacorrected gray alphablend...
+    const QRgba64 dstLinear = colorProfile ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
+
+    QRgba64 blend = interpolate255(srcLinear, coverage, dstLinear, 255 - coverage);
+
+    *dst = colorProfile ? colorProfile->fromLinear64(blend) : toArgb32(blend);
+}
+
+static inline void alphamapblend_argb32(quint32 *dst, int coverage, QRgba64 srcLinear, quint32 src, const QColorTrcLut *colorProfile)
+{
+    if (coverage == 0) {
+        // nothing
+    } else if (coverage == 255) {
+        *dst = src;
+    } else if (!colorProfile) {
+        *dst = INTERPOLATE_PIXEL_255(src, coverage, *dst, 255 - coverage);
+    } else {
+        if (*dst >= 0xff000000) {
+            grayBlendPixel(dst, coverage, srcLinear, colorProfile);
+        } else {
+            // Give up and do a naive gray alphablend. Needed to deal with ARGB32 and invalid ARGB32_premultiplied, see QTBUG-60571
+            *dst = INTERPOLATE_PIXEL_255(src, coverage, *dst, 255 - coverage);
+        }
+    }
+}
+
+#if QT_CONFIG(raster_64bit)
+static inline void alphamapblend_generic(int coverage, QRgba64 *dest, int x, const QRgba64 &srcLinear, const QRgba64 &src, const QColorTrcLut *colorProfile)
 {
     if (coverage == 0) {
         // nothing
@@ -5558,7 +5661,7 @@ static void qt_alphamapblit_generic(QRasterBuffer *rasterBuffer,
     if (color.isTransparent())
         return;
 
-    const QColorProfile *colorProfile = nullptr;
+    const QColorTrcLut *colorProfile = nullptr;
 
     if (useGammaCorrection)
         colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
@@ -5624,6 +5727,85 @@ static void qt_alphamapblit_generic(QRasterBuffer *rasterBuffer,
         } // for (yp -> bottom)
     }
 }
+#else
+static void qt_alphamapblit_generic(QRasterBuffer *rasterBuffer,
+                                    int x, int y, const QRgba64 &color,
+                                    const uchar *map,
+                                    int mapWidth, int mapHeight, int mapStride,
+                                    const QClipData *clip, bool useGammaCorrection)
+{
+    if (color.isTransparent())
+        return;
+
+    const quint32 c = color.toArgb32();
+
+    const QColorTrcLut *colorProfile = nullptr;
+
+    if (useGammaCorrection)
+        colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
+
+    QRgba64 srcColor = color;
+    if (colorProfile) {
+        if (color.isOpaque())
+            srcColor = colorProfile->toLinear(srcColor);
+        else
+            srcColor = colorProfile->toLinear(srcColor.unpremultiplied()).premultiplied();
+    }
+
+    quint32 buffer[BufferSize];
+    const DestFetchProc destFetch = destFetchProc[rasterBuffer->format];
+    const DestStoreProc destStore = destStoreProc[rasterBuffer->format];
+
+    if (!clip) {
+        for (int ly = 0; ly < mapHeight; ++ly) {
+            int i = x;
+            int length = mapWidth;
+            while (length > 0) {
+                int l = qMin(BufferSize, length);
+                quint32 *dest = destFetch(buffer, rasterBuffer, i, y + ly, l);
+                for (int j=0; j < l; ++j) {
+                    const int coverage = map[j + (i - x)];
+                    alphamapblend_argb32(dest + j, coverage, srcColor, c, colorProfile);
+                }
+                if (destStore)
+                    destStore(rasterBuffer, i, y + ly, dest, l);
+                length -= l;
+                i += l;
+            }
+            map += mapStride;
+        }
+    } else {
+        int bottom = qMin(y + mapHeight, rasterBuffer->height());
+
+        int top = qMax(y, 0);
+        map += (top - y) * mapStride;
+
+        const_cast<QClipData *>(clip)->initialize();
+        for (int yp = top; yp<bottom; ++yp) {
+            const QClipData::ClipLine &line = clip->m_clipLines[yp];
+
+            for (int i=0; i<line.count; ++i) {
+                const QSpan &clip = line.spans[i];
+
+                int start = qMax<int>(x, clip.x);
+                int end = qMin<int>(x + mapWidth, clip.x + clip.len);
+                if (end <= start)
+                    continue;
+                Q_ASSERT(end - start <= BufferSize);
+                quint32 *dest = destFetch(buffer, rasterBuffer, start, clip.y, end - start);
+
+                for (int xp=start; xp<end; ++xp) {
+                    const int coverage = map[xp - x];
+                    alphamapblend_argb32(dest + xp - x, coverage, srcColor, color, colorProfile);
+                }
+                if (destStore)
+                    destStore(rasterBuffer, start, clip.y, dest, end - start);
+            } // for (i -> line.count)
+            map += mapStride;
+        } // for (yp -> bottom)
+    }
+}
+#endif
 
 static inline void alphamapblend_quint16(int coverage, quint16 *dest, int x, const quint16 srcColor)
 {
@@ -5684,44 +5866,6 @@ void qt_alphamapblit_quint16(QRasterBuffer *rasterBuffer,
     }
 }
 
-static inline void rgbBlendPixel(quint32 *dst, int coverage, QRgba64 slinear, const QColorProfile *colorProfile)
-{
-    // Do a gammacorrected RGB alphablend...
-    const QRgba64 dlinear = colorProfile ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
-
-    QRgba64 blend = rgbBlend(dlinear, slinear, coverage);
-
-    *dst = colorProfile ? colorProfile->fromLinear64(blend) : toArgb32(blend);
-}
-
-static inline void grayBlendPixel(quint32 *dst, int coverage, QRgba64 srcLinear, const QColorProfile *colorProfile)
-{
-    // Do a gammacorrected gray alphablend...
-    const QRgba64 dstLinear = colorProfile ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
-
-    QRgba64 blend = interpolate255(srcLinear, coverage, dstLinear, 255 - coverage);
-
-    *dst = colorProfile ? colorProfile->fromLinear64(blend) : toArgb32(blend);
-}
-
-static inline void alphamapblend_argb32(quint32 *dst, int coverage, QRgba64 srcLinear, quint32 src, const QColorProfile *colorProfile)
-{
-    if (coverage == 0) {
-        // nothing
-    } else if (coverage == 255) {
-        *dst = src;
-    } else if (!colorProfile) {
-        *dst = INTERPOLATE_PIXEL_255(src, coverage, *dst, 255 - coverage);
-    } else {
-        if (*dst >= 0xff000000) {
-            grayBlendPixel(dst, coverage, srcLinear, colorProfile);
-        } else {
-            // Give up and do a naive gray alphablend. Needed to deal with ARGB32 and invalid ARGB32_premultiplied, see QTBUG-60571
-            *dst = INTERPOLATE_PIXEL_255(src, coverage, *dst, 255 - coverage);
-        }
-    }
-}
-
 static void qt_alphamapblit_argb32(QRasterBuffer *rasterBuffer,
                                    int x, int y, const QRgba64 &color,
                                    const uchar *map,
@@ -5734,7 +5878,7 @@ static void qt_alphamapblit_argb32(QRasterBuffer *rasterBuffer,
     if (color.isTransparent())
         return;
 
-    const QColorProfile *colorProfile = nullptr;
+    const QColorTrcLut *colorProfile = nullptr;
 
     if (useGammaCorrection)
         colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
@@ -5790,6 +5934,16 @@ static inline int qRgbAvg(QRgb rgb)
     return (qRed(rgb) * 5 + qGreen(rgb) * 6 + qBlue(rgb) * 5) / 16;
 }
 
+static inline void rgbBlendPixel(quint32 *dst, int coverage, QRgba64 slinear, const QColorTrcLut *colorProfile)
+{
+    // Do a gammacorrected RGB alphablend...
+    const QRgba64 dlinear = colorProfile ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
+
+    QRgba64 blend = rgbBlend(dlinear, slinear, coverage);
+
+    *dst = colorProfile ? colorProfile->fromLinear64(blend) : toArgb32(blend);
+}
+
 static inline QRgb rgbBlend(QRgb d, QRgb s, uint rgbAlpha)
 {
 #if defined(__SSE2__)
@@ -5830,7 +5984,8 @@ static inline QRgb rgbBlend(QRgb d, QRgb s, uint rgbAlpha)
 #endif
 }
 
-static inline void alphargbblend_generic(uint coverage, QRgba64 *dest, int x, const QRgba64 &srcLinear, const QRgba64 &src, const QColorProfile *colorProfile)
+#if QT_CONFIG(raster_64bit)
+static inline void alphargbblend_generic(uint coverage, QRgba64 *dest, int x, const QRgba64 &srcLinear, const QRgba64 &src, const QColorTrcLut *colorProfile)
 {
     if (coverage == 0xff000000) {
         // nothing
@@ -5851,8 +6006,9 @@ static inline void alphargbblend_generic(uint coverage, QRgba64 *dest, int x, co
         }
     }
 }
+#endif
 
-static inline void alphargbblend_argb32(quint32 *dst, uint coverage, const QRgba64 &srcLinear, quint32 src, const QColorProfile *colorProfile)
+static inline void alphargbblend_argb32(quint32 *dst, uint coverage, const QRgba64 &srcLinear, quint32 src, const QColorTrcLut *colorProfile)
 {
     if (coverage == 0xff000000) {
         // nothing
@@ -5869,6 +6025,7 @@ static inline void alphargbblend_argb32(quint32 *dst, uint coverage, const QRgba
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 static void qt_alphargbblit_generic(QRasterBuffer *rasterBuffer,
                                     int x, int y, const QRgba64 &color,
                                     const uint *src, int mapWidth, int mapHeight, int srcStride,
@@ -5877,7 +6034,7 @@ static void qt_alphargbblit_generic(QRasterBuffer *rasterBuffer,
     if (color.isTransparent())
         return;
 
-    const QColorProfile *colorProfile = nullptr;
+    const QColorTrcLut *colorProfile = nullptr;
 
     if (useGammaCorrection)
         colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
@@ -5943,6 +6100,84 @@ static void qt_alphargbblit_generic(QRasterBuffer *rasterBuffer,
         } // for (yp -> bottom)
     }
 }
+#else
+static void qt_alphargbblit_generic(QRasterBuffer *rasterBuffer,
+                                    int x, int y, const QRgba64 &color,
+                                    const uint *src, int mapWidth, int mapHeight, int srcStride,
+                                    const QClipData *clip, bool useGammaCorrection)
+{
+    if (color.isTransparent())
+        return;
+
+    const quint32 c = color.toArgb32();
+
+    const QColorTrcLut *colorProfile = nullptr;
+
+    if (useGammaCorrection)
+        colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
+
+    QRgba64 srcColor = color;
+    if (colorProfile) {
+        if (color.isOpaque())
+            srcColor = colorProfile->toLinear(srcColor);
+        else
+            srcColor = colorProfile->toLinear(srcColor.unpremultiplied()).premultiplied();
+    }
+
+    quint32 buffer[BufferSize];
+    const DestFetchProc destFetch = destFetchProc[rasterBuffer->format];
+    const DestStoreProc destStore = destStoreProc[rasterBuffer->format];
+
+    if (!clip) {
+        for (int ly = 0; ly < mapHeight; ++ly) {
+            int i = x;
+            int length = mapWidth;
+            while (length > 0) {
+                int l = qMin(BufferSize, length);
+                quint32 *dest = destFetch(buffer, rasterBuffer, i, y + ly, l);
+                for (int j=0; j < l; ++j) {
+                    const uint coverage = src[j + (i - x)];
+                    alphargbblend_argb32(dest + j, coverage, srcColor, c, colorProfile);
+                }
+                if (destStore)
+                    destStore(rasterBuffer, i, y + ly, dest, l);
+                length -= l;
+                i += l;
+            }
+            src += srcStride;
+        }
+    } else {
+        int bottom = qMin(y + mapHeight, rasterBuffer->height());
+
+        int top = qMax(y, 0);
+        src += (top - y) * srcStride;
+
+        const_cast<QClipData *>(clip)->initialize();
+        for (int yp = top; yp<bottom; ++yp) {
+            const QClipData::ClipLine &line = clip->m_clipLines[yp];
+
+            for (int i=0; i<line.count; ++i) {
+                const QSpan &clip = line.spans[i];
+
+                int start = qMax<int>(x, clip.x);
+                int end = qMin<int>(x + mapWidth, clip.x + clip.len);
+                if (end <= start)
+                    continue;
+                Q_ASSERT(end - start <= BufferSize);
+                quint32 *dest = destFetch(buffer, rasterBuffer, start, clip.y, end - start);
+
+                for (int xp=start; xp<end; ++xp) {
+                    const uint coverage = src[xp - x];
+                    alphargbblend_argb32(dest + xp - start, coverage, srcColor, c, colorProfile);
+                }
+                if (destStore)
+                    destStore(rasterBuffer, start, clip.y, dest, end - start);
+            } // for (i -> line.count)
+            src += srcStride;
+        } // for (yp -> bottom)
+    }
+}
+#endif
 
 static void qt_alphargbblit_argb32(QRasterBuffer *rasterBuffer,
                                    int x, int y, const QRgba64 &color,
@@ -5954,7 +6189,7 @@ static void qt_alphargbblit_argb32(QRasterBuffer *rasterBuffer,
 
     const quint32 c = color.toArgb32();
 
-    const QColorProfile *colorProfile = nullptr;
+    const QColorTrcLut *colorProfile = nullptr;
 
     if (useGammaCorrection)
         colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
@@ -6533,8 +6768,10 @@ static void qInitDrawhelperFunctions()
         qPixelLayouts[QImage::Format_A2RGB30_Premultiplied].storeFromARGB32PM = storeA2RGB30PMFromARGB32PM_sse4<PixelOrderRGB>;
         qStoreFromRGBA64PM[QImage::Format_ARGB32] = storeARGB32FromRGBA64PM_sse4;
         qStoreFromRGBA64PM[QImage::Format_RGBA8888] = storeRGBA8888FromRGBA64PM_sse4;
+#if QT_CONFIG(raster_64bit)
         destStoreProc64[QImage::Format_ARGB32] = destStore64ARGB32_sse4;
         destStoreProc64[QImage::Format_RGBA8888] = destStore64RGBA8888_sse4;
+#endif
     }
 #endif
 
@@ -6558,18 +6795,19 @@ static void qInitDrawhelperFunctions()
         qBlendFunctions[QImage::Format_RGBA8888_Premultiplied][QImage::Format_RGBA8888_Premultiplied] = qt_blend_argb32_on_argb32_avx2;
 
         extern void QT_FASTCALL comp_func_Source_avx2(uint *destPixels, const uint *srcPixels, int length, uint const_alpha);
-        extern void QT_FASTCALL comp_func_Source_rgb64_avx2(QRgba64 *destPixels, const QRgba64 *srcPixels, int length, uint const_alpha);
         extern void QT_FASTCALL comp_func_SourceOver_avx2(uint *destPixels, const uint *srcPixels, int length, uint const_alpha);
-        extern void QT_FASTCALL comp_func_SourceOver_rgb64_avx2(QRgba64 *destPixels, const QRgba64 *srcPixels, int length, uint const_alpha);
         extern void QT_FASTCALL comp_func_solid_SourceOver_avx2(uint *destPixels, int length, uint color, uint const_alpha);
-        extern void QT_FASTCALL comp_func_solid_SourceOver_rgb64_avx2(QRgba64 *destPixels, int length, QRgba64 color, uint const_alpha);
-
         qt_functionForMode_C[QPainter::CompositionMode_Source] = comp_func_Source_avx2;
-        qt_functionForMode64_C[QPainter::CompositionMode_Source] = comp_func_Source_rgb64_avx2;
         qt_functionForMode_C[QPainter::CompositionMode_SourceOver] = comp_func_SourceOver_avx2;
-        qt_functionForMode64_C[QPainter::CompositionMode_SourceOver] = comp_func_SourceOver_rgb64_avx2;
         qt_functionForModeSolid_C[QPainter::CompositionMode_SourceOver] = comp_func_solid_SourceOver_avx2;
+#if QT_CONFIG(raster_64bit)
+        extern void QT_FASTCALL comp_func_Source_rgb64_avx2(QRgba64 *destPixels, const QRgba64 *srcPixels, int length, uint const_alpha);
+        extern void QT_FASTCALL comp_func_SourceOver_rgb64_avx2(QRgba64 *destPixels, const QRgba64 *srcPixels, int length, uint const_alpha);
+        extern void QT_FASTCALL comp_func_solid_SourceOver_rgb64_avx2(QRgba64 *destPixels, int length, QRgba64 color, uint const_alpha);
+        qt_functionForMode64_C[QPainter::CompositionMode_Source] = comp_func_Source_rgb64_avx2;
+        qt_functionForMode64_C[QPainter::CompositionMode_SourceOver] = comp_func_SourceOver_rgb64_avx2;
         qt_functionForModeSolid64_C[QPainter::CompositionMode_SourceOver] = comp_func_solid_SourceOver_rgb64_avx2;
+#endif
 
         extern void QT_FASTCALL fetchTransformedBilinearARGB32PM_simple_scale_helper_avx2(uint *b, uint *end, const QTextureData &image,
                                                                                           int &fx, int &fy, int fdx, int /*fdy*/);
@@ -6593,6 +6831,7 @@ static void qInitDrawhelperFunctions()
         qPixelLayouts[QImage::Format_RGBA8888].fetchToARGB32PM = fetchRGBA8888ToARGB32PM_avx2;
         qPixelLayouts[QImage::Format_RGBA8888].convertToARGB32PM = convertRGBA8888ToARGB32PM_avx2;
 
+#if QT_CONFIG(raster_64bit)
         extern const QRgba64 * QT_FASTCALL convertARGB32ToRGBA64PM_avx2(QRgba64 *, const uint *, int, const QVector<QRgb> *, QDitherInfo *);
         extern const QRgba64 * QT_FASTCALL convertRGBA8888ToRGBA64PM_avx2(QRgba64 *, const uint *, int count, const QVector<QRgb> *, QDitherInfo *);
         extern const QRgba64 *QT_FASTCALL fetchARGB32ToRGBA64PM_avx2(QRgba64 *, const uchar *, int, int, const QVector<QRgb> *, QDitherInfo *);
@@ -6601,6 +6840,7 @@ static void qInitDrawhelperFunctions()
         qPixelLayouts[QImage::Format_RGBX8888].convertToRGBA64PM = convertRGBA8888ToRGBA64PM_avx2;
         qPixelLayouts[QImage::Format_ARGB32].fetchToRGBA64PM = fetchARGB32ToRGBA64PM_avx2;
         qPixelLayouts[QImage::Format_RGBX8888].fetchToRGBA64PM = fetchRGBA8888ToRGBA64PM_avx2;
+#endif
     }
 #endif
 
diff --git a/src/gui/painting/qdrawhelper_avx2.cpp b/src/gui/painting/qdrawhelper_avx2.cpp
index 2b3cc9b226..fb50cb6a50 100644
--- a/src/gui/painting/qdrawhelper_avx2.cpp
+++ b/src/gui/painting/qdrawhelper_avx2.cpp
@@ -396,6 +396,7 @@ void QT_FASTCALL comp_func_SourceOver_avx2(uint *destPixels, const uint *srcPixe
         BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_AVX2(dst, src, length, const_alpha);
 }
 
+#if QT_CONFIG(raster_64bit)
 void QT_FASTCALL comp_func_SourceOver_rgb64_avx2(QRgba64 *dst, const QRgba64 *src, int length, uint const_alpha)
 {
     Q_ASSERT(const_alpha < 256); // const_alpha is in [0-255]
@@ -453,6 +454,7 @@ void QT_FASTCALL comp_func_SourceOver_rgb64_avx2(QRgba64 *dst, const QRgba64 *sr
             blend_pixel(dst[x], src[x], const_alpha);
     }
 }
+#endif
 
 void QT_FASTCALL comp_func_Source_avx2(uint *dst, const uint *src, int length, uint const_alpha)
 {
@@ -485,6 +487,7 @@ void QT_FASTCALL comp_func_Source_avx2(uint *dst, const uint *src, int length, u
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 void QT_FASTCALL comp_func_Source_rgb64_avx2(QRgba64 *dst, const QRgba64 *src, int length, uint const_alpha)
 {
     Q_ASSERT(const_alpha < 256); // const_alpha is in [0-255]
@@ -517,6 +520,7 @@ void QT_FASTCALL comp_func_Source_rgb64_avx2(QRgba64 *dst, const QRgba64 *src, i
             dst[x] = interpolate65535(src[x], ca, dst[x], cia);
     }
 }
+#endif
 
 void QT_FASTCALL comp_func_solid_SourceOver_avx2(uint *destPixels, int length, uint color, uint const_alpha)
 {
@@ -549,6 +553,7 @@ void QT_FASTCALL comp_func_solid_SourceOver_avx2(uint *destPixels, int length, u
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 void QT_FASTCALL comp_func_solid_SourceOver_rgb64_avx2(QRgba64 *destPixels, int length, QRgba64 color, uint const_alpha)
 {
     Q_ASSERT(const_alpha < 256); // const_alpha is in [0-255]
@@ -579,6 +584,7 @@ void QT_FASTCALL comp_func_solid_SourceOver_rgb64_avx2(QRgba64 *destPixels, int
             destPixels[x] = color + multiplyAlpha65535(destPixels[x], minusAlphaOfColor);
     }
 }
+#endif
 
 #define interpolate_4_pixels_16_avx2(tlr1, tlr2, blr1, blr2, distx, disty, colorMask, v_256, b)  \
 { \
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h
index 37108949d6..9c5d525722 100644
--- a/src/gui/painting/qdrawhelper_p.h
+++ b/src/gui/painting/qdrawhelper_p.h
@@ -296,7 +296,9 @@ struct QGradientData
 #define GRADIENT_STOPTABLE_SIZE 1024
 #define GRADIENT_STOPTABLE_SIZE_SHIFT 10
 
+#if QT_CONFIG(raster_64bit)
     const QRgba64 *colorTable64; //[GRADIENT_STOPTABLE_SIZE];
+#endif
     const QRgb *colorTable32; //[GRADIENT_STOPTABLE_SIZE];
 
     uint alphaColor : 1;
@@ -328,7 +330,7 @@ struct QTextureData
 
 struct QSpanData
 {
-    QSpanData() : tempImage(0) {}
+    QSpanData() : tempImage(nullptr) {}
     ~QSpanData() { delete tempImage; }
 
     QRasterBuffer *rasterBuffer;
@@ -402,11 +404,13 @@ static inline uint qt_gradient_pixel(const QGradientData *data, qreal pos)
     return data->colorTable32[qt_gradient_clamp(data, ipos)];
 }
 
+#if QT_CONFIG(raster_64bit)
 static inline const QRgba64& qt_gradient_pixel64(const QGradientData *data, qreal pos)
 {
     int ipos = int(pos * (GRADIENT_STOPTABLE_SIZE - 1) + qreal(0.5));
     return data->colorTable64[qt_gradient_clamp(data, ipos)];
 }
+#endif
 
 static inline qreal qRadialDeterminant(qreal a, qreal b, qreal c)
 {
diff --git a/src/gui/painting/qdrawhelper_sse4.cpp b/src/gui/painting/qdrawhelper_sse4.cpp
index d9a687b1b4..5e8acc332d 100644
--- a/src/gui/painting/qdrawhelper_sse4.cpp
+++ b/src/gui/painting/qdrawhelper_sse4.cpp
@@ -399,6 +399,7 @@ void QT_FASTCALL storeA2RGB30PMFromARGB32PM_sse4(uchar *dest, const uint *src, i
         d[i] = qConvertArgb32ToA2rgb30_sse4<PixelOrder>(src[i]);
 }
 
+#if QT_CONFIG(raster_64bit)
 void QT_FASTCALL destStore64ARGB32_sse4(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
 {
     uint *dest = (uint*)rasterBuffer->scanLine(y) + x;
@@ -410,6 +411,7 @@ void QT_FASTCALL destStore64RGBA8888_sse4(QRasterBuffer *rasterBuffer, int x, in
     uint *dest = (uint*)rasterBuffer->scanLine(y) + x;
     convertARGBFromRGBA64PM_sse4<true>(dest, buffer, length);
 }
+#endif
 
 void QT_FASTCALL storeARGB32FromRGBA64PM_sse4(uchar *dest, const QRgba64 *src, int index, int count,
                                               const QVector<QRgb> *, QDitherInfo *)
diff --git a/src/gui/painting/qicc.cpp b/src/gui/painting/qicc.cpp
new file mode 100644
index 0000000000..d88b005782
--- /dev/null
+++ b/src/gui/painting/qicc.cpp
@@ -0,0 +1,669 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qicc_p.h"
+
+#include <qbuffer.h>
+#include <qbytearray.h>
+#include <qdatastream.h>
+#include <qloggingcategory.h>
+#include <qendian.h>
+
+#include "qcolorspace_p.h"
+#include "qcolortrc_p.h"
+
+QT_BEGIN_NAMESPACE
+Q_LOGGING_CATEGORY(lcIcc, "qt.gui.icc")
+
+struct ICCProfileHeader
+{
+    quint32_be profileSize;
+
+    quint32_be preferredCmmType;
+
+    quint32_be profileVersion;
+    quint32_be profileClass;
+    quint32_be inputColorSpace;
+    quint32_be pcs;
+    quint32_be datetime[3];
+    quint32_be signature;
+    quint32_be platformSignature;
+    quint32_be flags;
+    quint32_be deviceManufacturer;
+    quint32_be deviceModel;
+    quint32_be deviceAttributes[2];
+
+    quint32_be renderingIntent;
+    qint32_be  illuminantXyz[3];
+
+    quint32_be creatorSignature;
+    quint32_be profileId[4];
+
+    quint32_be reserved[7];
+
+// Technically after the header, but easier to include here:
+    quint32_be tagCount;
+};
+
+constexpr quint32 IccTag(uchar a, uchar b, uchar c, uchar d)
+{
+    return (a << 24) | (b << 16) | (c << 8) | d;
+}
+
+enum class ProfileClass : quint32 {
+    Input       = IccTag('s', 'c', 'r', 'n'),
+    Display     = IccTag('m', 'n', 't', 'r'),
+    // Not supported:
+    Output      = IccTag('p', 'r', 't', 'r'),
+    ColorSpace  = IccTag('s', 'p', 'a', 'c'),
+};
+
+enum class Tag : quint32 {
+    acsp = IccTag('a', 'c', 's', 'p'),
+    RGB_ = IccTag('R', 'G', 'B', ' '),
+    XYZ_ = IccTag('X', 'Y', 'Z', ' '),
+    rXYZ = IccTag('r', 'X', 'Y', 'Z'),
+    gXYZ = IccTag('g', 'X', 'Y', 'Z'),
+    bXYZ = IccTag('b', 'X', 'Y', 'Z'),
+    rTRC = IccTag('r', 'T', 'R', 'C'),
+    gTRC = IccTag('g', 'T', 'R', 'C'),
+    bTRC = IccTag('b', 'T', 'R', 'C'),
+    A2B0 = IccTag('A', '2', 'B', '0'),
+    A2B1 = IccTag('A', '2', 'B', '1'),
+    B2A0 = IccTag('B', '2', 'A', '0'),
+    B2A1 = IccTag('B', '2', 'A', '1'),
+    desc = IccTag('d', 'e', 's', 'c'),
+    text = IccTag('t', 'e', 'x', 't'),
+    cprt = IccTag('c', 'p', 'r', 't'),
+    curv = IccTag('c', 'u', 'r', 'v'),
+    para = IccTag('p', 'a', 'r', 'a'),
+    wtpt = IccTag('w', 't', 'p', 't'),
+    bkpt = IccTag('b', 'k', 'p', 't'),
+    mft1 = IccTag('m', 'f', 't', '1'),
+    mft2 = IccTag('m', 'f', 't', '2'),
+    mAB_ = IccTag('m', 'A', 'B', ' '),
+    mBA_ = IccTag('m', 'B', 'A', ' '),
+    chad = IccTag('c', 'h', 'a', 'd'),
+    sf32 = IccTag('s', 'f', '3', '2'),
+
+    // Apple extensions for ICCv2:
+    aarg = IccTag('a', 'a', 'r', 'g'),
+    aagg = IccTag('a', 'a', 'g', 'g'),
+    aabg = IccTag('a', 'a', 'b', 'g'),
+};
+
+inline uint qHash(const Tag &key, uint seed = 0)
+{
+    return qHash(quint32(key), seed);
+}
+
+namespace QIcc {
+
+struct TagTableEntry
+{
+    quint32_be signature;
+    quint32_be offset;
+    quint32_be size;
+};
+
+struct GenericTagData {
+    quint32_be type;
+    quint32_be null;
+};
+
+struct XYZTagData : GenericTagData {
+    qint32_be fixedX;
+    qint32_be fixedY;
+    qint32_be fixedZ;
+};
+
+struct CurvTagData : GenericTagData {
+    quint32_be valueCount;
+    quint16_be value[1];
+};
+
+struct ParaTagData : GenericTagData {
+    quint16_be curveType;
+    quint16_be null2;
+    quint32_be parameter[1];
+};
+
+// For both mAB and mBA
+struct mABTagData : GenericTagData {
+    quint8 inputChannels;
+    quint8 outputChannels;
+    quint8 padding[2];
+    quint32_be bCurvesOffset;
+    quint32_be matrixOffset;
+    quint32_be mCurvesOffset;
+    quint32_be clutOffset;
+    quint32_be aCurvesOffset;
+};
+
+struct Sf32TagData : GenericTagData {
+    quint32_be value[1];
+};
+
+static int toFixedS1516(float x)
+{
+    return int(x * 65536.0f + 0.5f);
+}
+
+static float fromFixedS1516(int x)
+{
+    return x * (1.0f / 65536.0f);
+}
+
+QColorVector fromXyzData(const XYZTagData *xyz)
+{
+    const float x = fromFixedS1516(xyz->fixedX);
+    const float y = fromFixedS1516(xyz->fixedY);
+    const float z = fromFixedS1516(xyz->fixedZ);
+    qCDebug(lcIcc) << "XYZ_ " << x << y << z;
+
+    return QColorVector(x, y, z);
+}
+
+static bool isValidIccProfile(const ICCProfileHeader &header)
+{
+    if (header.signature != uint(Tag::acsp)) {
+        qCWarning(lcIcc, "Failed ICC signature test");
+        return false;
+    }
+    if (header.profileSize < (sizeof(ICCProfileHeader) + header.tagCount * sizeof(TagTableEntry))) {
+        qCWarning(lcIcc, "Failed basic size sanity");
+        return false;
+    }
+
+    if (header.profileClass != uint(ProfileClass::Input)
+        && header.profileClass != uint(ProfileClass::Display)) {
+        qCWarning(lcIcc, "Unsupported ICC profile class %x", quint32(header.profileClass));
+        return false;
+    }
+    if (header.inputColorSpace != 0x52474220 /* 'RGB '*/) {
+        qCWarning(lcIcc, "Unsupported ICC input color space %x", quint32(header.inputColorSpace));
+        return false;
+    }
+    if (header.pcs != 0x58595a20 /* 'XYZ '*/) {
+        // ### support PCSLAB
+        qCWarning(lcIcc, "Unsupported ICC profile connection space %x", quint32(header.pcs));
+        return false;
+    }
+
+    QColorVector illuminant;
+    illuminant.x = fromFixedS1516(header.illuminantXyz[0]);
+    illuminant.y = fromFixedS1516(header.illuminantXyz[1]);
+    illuminant.z = fromFixedS1516(header.illuminantXyz[2]);
+    if (illuminant != QColorVector::D50()) {
+        qCWarning(lcIcc, "Invalid ICC illuminant");
+        return false;
+    }
+
+    return true;
+}
+
+static int writeColorTrc(QDataStream &stream, const QColorTrc &trc)
+{
+    if (trc.isLinear()) {
+        stream << uint(Tag::curv) << uint(0);
+        stream << uint(0);
+        return 12;
+    }
+
+    if (trc.m_type == QColorTrc::Type::Function) {
+        const QColorTransferFunction &fun = trc.m_fun;
+        stream << uint(Tag::para) << uint(0);
+        if (fun.isGamma()) {
+            stream << ushort(0) << ushort(0);
+            stream << toFixedS1516(fun.m_g);
+            return 12 + 4;
+        }
+        bool type3 = qFuzzyIsNull(fun.m_e) && qFuzzyIsNull(fun.m_f);
+        stream << ushort(type3 ? 3 : 4) << ushort(0);
+        stream << toFixedS1516(fun.m_g);
+        stream << toFixedS1516(fun.m_a);
+        stream << toFixedS1516(fun.m_b);
+        stream << toFixedS1516(fun.m_c);
+        stream << toFixedS1516(fun.m_d);
+        if (type3)
+            return 12 + 5 * 4;
+        stream << toFixedS1516(fun.m_e);
+        stream << toFixedS1516(fun.m_f);
+        return 12 + 7 * 4;
+    }
+
+    Q_ASSERT(trc.m_type == QColorTrc::Type::Table);
+    stream << uint(Tag::curv) << uint(0);
+    stream << uint(trc.m_table.m_tableSize);
+    if (!trc.m_table.m_table16.isEmpty()) {
+        for (uint i = 0; i < trc.m_table.m_tableSize; ++i) {
+            stream << ushort(trc.m_table.m_table16[i]);
+        }
+    } else {
+        for (uint i = 0; i < trc.m_table.m_tableSize; ++i) {
+            stream << ushort(trc.m_table.m_table8[i] * 257U);
+        }
+    }
+    return 12 + 2 * trc.m_table.m_tableSize;
+}
+
+QByteArray toIccProfile(const QColorSpace &space)
+{
+    if (!space.isValid())
+        return QByteArray();
+
+    const QColorSpacePrivate *spaceDPtr = space.d_func();
+
+    constexpr int tagCount = 9;
+    constexpr uint profileDataOffset = 128 + 4 + 12 * tagCount;
+    constexpr uint variableTagTableOffsets = 128 + 4 + 12 * 5;
+    uint currentOffset = 0;
+    uint rTrcOffset, gTrcOffset, bTrcOffset;
+    uint rTrcSize, gTrcSize, bTrcSize;
+    uint descOffset, descSize;
+
+    QBuffer buffer;
+    buffer.open(QIODevice::WriteOnly);
+    QDataStream stream(&buffer);
+
+    // Profile header:
+    stream << uint(0); // Size, we will update this later
+    stream << uint(0);
+    stream << uint(0x02400000); // Version 2.4 (note we use 'para' from version 4)
+    stream << uint(ProfileClass::Display);
+    stream << uint(Tag::RGB_);
+    stream << uint(Tag::XYZ_);
+    stream << uint(0) << uint(0) << uint(0);
+    stream << uint(Tag::acsp);
+    stream << uint(0) << uint(0) << uint(0);
+    stream << uint(0) << uint(0) << uint(0);
+    stream << uint(1); // Rendering intent
+    stream << uint(0x0000f6d6); // D50 X
+    stream << uint(0x00010000); // D50 Y
+    stream << uint(0x0000d32d); // D50 Z
+    stream << IccTag('Q','t', QT_VERSION_MAJOR, QT_VERSION_MINOR);
+    stream << uint(0) << uint(0) << uint(0) << uint(0);
+    stream << uint(0) << uint(0) << uint(0) << uint(0) << uint(0) << uint(0) << uint(0);
+
+    // Tag table:
+    stream << uint(tagCount);
+    stream << uint(Tag::rXYZ) << uint(profileDataOffset + 00) << uint(20);
+    stream << uint(Tag::gXYZ) << uint(profileDataOffset + 20) << uint(20);
+    stream << uint(Tag::bXYZ) << uint(profileDataOffset + 40) << uint(20);
+    stream << uint(Tag::wtpt) << uint(profileDataOffset + 60) << uint(20);
+    stream << uint(Tag::cprt) << uint(profileDataOffset + 80) << uint(12);
+    // From here the offset and size will be updated later:
+    stream << uint(Tag::rTRC) << uint(0) << uint(0);
+    stream << uint(Tag::gTRC) << uint(0) << uint(0);
+    stream << uint(Tag::bTRC) << uint(0) << uint(0);
+    stream << uint(Tag::desc) << uint(0) << uint(0);
+    // TODO: consider adding 'chad' tag (required in ICC >=4 when we have non-D50 whitepoint)
+    currentOffset = profileDataOffset;
+
+    // Tag data:
+    stream << uint(Tag::XYZ_) << uint(0);
+    stream << toFixedS1516(spaceDPtr->toXyz.r.x);
+    stream << toFixedS1516(spaceDPtr->toXyz.r.y);
+    stream << toFixedS1516(spaceDPtr->toXyz.r.z);
+    stream << uint(Tag::XYZ_) << uint(0);
+    stream << toFixedS1516(spaceDPtr->toXyz.g.x);
+    stream << toFixedS1516(spaceDPtr->toXyz.g.y);
+    stream << toFixedS1516(spaceDPtr->toXyz.g.z);
+    stream << uint(Tag::XYZ_) << uint(0);
+    stream << toFixedS1516(spaceDPtr->toXyz.b.x);
+    stream << toFixedS1516(spaceDPtr->toXyz.b.y);
+    stream << toFixedS1516(spaceDPtr->toXyz.b.z);
+    stream << uint(Tag::XYZ_) << uint(0);
+    stream << toFixedS1516(spaceDPtr->whitePoint.x);
+    stream << toFixedS1516(spaceDPtr->whitePoint.y);
+    stream << toFixedS1516(spaceDPtr->whitePoint.z);
+    stream << uint(Tag::text) << uint(0);
+    stream << uint(IccTag('N', '/', 'A', '\0'));
+    currentOffset += 92;
+
+    // From now on the data is variable sized:
+    rTrcOffset = currentOffset;
+    rTrcSize = writeColorTrc(stream, spaceDPtr->trc[0]);
+    currentOffset += rTrcSize;
+    if (spaceDPtr->trc[0] == spaceDPtr->trc[1]) {
+        gTrcOffset = rTrcOffset;
+        gTrcSize = rTrcSize;
+    } else {
+        gTrcOffset = currentOffset;
+        gTrcSize = writeColorTrc(stream, spaceDPtr->trc[1]);
+        currentOffset += gTrcSize;
+    }
+    if (spaceDPtr->trc[0] == spaceDPtr->trc[2]) {
+        bTrcOffset = rTrcOffset;
+        bTrcSize = rTrcSize;
+    } else {
+        bTrcOffset = currentOffset;
+        bTrcSize = writeColorTrc(stream, spaceDPtr->trc[2]);
+        currentOffset += bTrcSize;
+    }
+
+    descOffset = currentOffset;
+    QByteArray description = spaceDPtr->description.toUtf8();
+    stream << uint(Tag::desc) << uint(0);
+    stream << uint(description.size() + 1);
+    stream.writeRawData(description.constData(), description.size() + 1);
+    stream << uint(0) << uint(0);
+    stream << ushort(0) << uchar(0);
+    QByteArray macdesc(67, '\0');
+    stream.writeRawData(macdesc.constData(), 67);
+    descSize = 90 + description.size() + 1;
+    currentOffset += descSize;
+
+    buffer.close();
+    QByteArray iccProfile = buffer.buffer();
+    // Now write final size
+    *(quint32_be *)iccProfile.data() = iccProfile.size();
+    // And the final indices and sizes of variable size tags:
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 4) = rTrcOffset;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 8) = rTrcSize;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 12 + 4) = gTrcOffset;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 12 + 8) = gTrcSize;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 2 * 12 + 4) = bTrcOffset;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 2 * 12 + 8) = bTrcSize;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 3 * 12 + 4) = descOffset;
+    *(quint32_be *)(iccProfile.data() + variableTagTableOffsets + 3 * 12 + 8) = descSize;
+
+#if !defined(QT_NO_DEBUG) || defined(QT_FORCE_ASSERTS)
+    const ICCProfileHeader *iccHeader = (const ICCProfileHeader *)iccProfile.constData();
+    Q_ASSERT(qsizetype(iccHeader->profileSize) == qsizetype(iccProfile.size()));
+    Q_ASSERT(isValidIccProfile(*iccHeader));
+#endif
+
+    return iccProfile;
+}
+
+bool parseTRC(const GenericTagData *trcData, QColorTrc &gamma)
+{
+    if (trcData->type == quint32(Tag::curv)) {
+        const CurvTagData *curv = reinterpret_cast<const CurvTagData *>(trcData);
+        qCDebug(lcIcc) << "curv" << uint(curv->valueCount);
+        if (curv->valueCount == 0) {
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction(); // Linear
+        } else if (curv->valueCount == 1) {
+            float g = curv->value[0] * (1.0f / 256.0f);
+            qCDebug(lcIcc) << g;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction::fromGamma(g);
+        } else {
+            QVector<quint16> tabl;
+            tabl.resize(curv->valueCount);
+            for (uint i = 0; i < curv->valueCount; ++i)
+                tabl[i] = curv->value[i];
+            QColorTransferTable table = QColorTransferTable(curv->valueCount, std::move(tabl));
+            QColorTransferFunction curve;
+            if (!table.asColorTransferFunction(&curve)) {
+                gamma.m_type = QColorTrc::Type::Table;
+                gamma.m_table = table;
+            } else {
+                qCDebug(lcIcc) << "Detected curv table as function";
+                gamma.m_type = QColorTrc::Type::Function;
+                gamma.m_fun = curve;
+            }
+        }
+        return true;
+    }
+    if (trcData->type == quint32(Tag::para)) {
+        const ParaTagData *para = reinterpret_cast<const ParaTagData *>(trcData);
+        qCDebug(lcIcc) << "para" << uint(para->curveType);
+        switch (para->curveType) {
+        case 0: {
+            float g = fromFixedS1516(para->parameter[0]);
+            qCDebug(lcIcc) << g;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction::fromGamma(g);
+            break;
+        }
+        case 1: {
+            float g = fromFixedS1516(para->parameter[0]);
+            float a = fromFixedS1516(para->parameter[1]);
+            float b = fromFixedS1516(para->parameter[2]);
+            float d = -b / a;
+            qCDebug(lcIcc) << g << a << b;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction(a, b, 0.0f, d, 0.0f, 0.0f, g);
+            break;
+        }
+        case 2: {
+            float g = fromFixedS1516(para->parameter[0]);
+            float a = fromFixedS1516(para->parameter[1]);
+            float b = fromFixedS1516(para->parameter[2]);
+            float c = fromFixedS1516(para->parameter[3]);
+            float d = -b / a;
+            qCDebug(lcIcc) << g << a << b << c;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction(a, b, 0.0f, d, c, c, g);
+            break;
+        }
+        case 3: {
+            float g = fromFixedS1516(para->parameter[0]);
+            float a = fromFixedS1516(para->parameter[1]);
+            float b = fromFixedS1516(para->parameter[2]);
+            float c = fromFixedS1516(para->parameter[3]);
+            float d = fromFixedS1516(para->parameter[4]);
+            qCDebug(lcIcc) << g << a << b << c << d;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction(a, b, c, d, 0.0f, 0.0f, g);
+            break;
+        }
+        case 4: {
+            float g = fromFixedS1516(para->parameter[0]);
+            float a = fromFixedS1516(para->parameter[1]);
+            float b = fromFixedS1516(para->parameter[2]);
+            float c = fromFixedS1516(para->parameter[3]);
+            float d = fromFixedS1516(para->parameter[4]);
+            float e = fromFixedS1516(para->parameter[5]);
+            float f = fromFixedS1516(para->parameter[6]);
+            qCDebug(lcIcc) << g << a << b << c << d << e << f;
+            gamma.m_type = QColorTrc::Type::Function;
+            gamma.m_fun = QColorTransferFunction(a, b, c, d, e, f, g);
+            break;
+        }
+        default:
+            qCWarning(lcIcc)  << "Unknown para type" << uint(para->curveType);
+            return false;
+        }
+        return true;
+    }
+    qCWarning(lcIcc) << "Invalid TRC data type";
+    return false;
+}
+
+bool fromIccProfile(const QByteArray &data, QColorSpace *colorSpace)
+{
+    if (data.size() < qsizetype(sizeof(ICCProfileHeader))) {
+        qCWarning(lcIcc) << "fromIccProfile: failed size sanity 1";
+        return false;
+    }
+    const ICCProfileHeader *header = (const ICCProfileHeader *)data.constData();
+    if (!isValidIccProfile(*header)) {
+        qCWarning(lcIcc) << "fromIccProfile: failed general sanity check";
+        return false;
+    }
+    if (qsizetype(header->profileSize) > data.size()) {
+        qCWarning(lcIcc) << "fromIccProfile: failed size sanity 2";
+        return false;
+    }
+
+    // Read tag index
+    const TagTableEntry *tagTable = (const TagTableEntry *)(data.constData() + sizeof(ICCProfileHeader));
+    const qsizetype offsetToData = sizeof(ICCProfileHeader) + header->tagCount * sizeof(TagTableEntry);
+
+    QHash<Tag, quint32> tagIndex;
+    for (uint i = 0; i < header->tagCount; ++i) {
+        // Sanity check tag sizes and offsets:
+        if (qsizetype(tagTable[i].offset) < offsetToData) {
+            qCWarning(lcIcc) << "fromIccProfile: failed tag offset sanity 1";
+            return false;
+        }
+        // Checked separately from (+ size) to handle overflow.
+        if (tagTable[i].offset > header->profileSize) {
+            qCWarning(lcIcc) << "fromIccProfile: failed tag offset sanity 2";
+            return false;
+        }
+        if ((tagTable[i].offset + tagTable[i].size) > header->profileSize) {
+            qCWarning(lcIcc) << "fromIccProfile: failed tag offset + size sanity";
+            return false;
+        }
+//        printf("'%4s' %d %d\n", (const char *)&tagTable[i].signature,
+//                                quint32(tagTable[i].offset),
+//                                quint32(tagTable[i].size));
+        tagIndex.insert(Tag(quint32(tagTable[i].signature)), tagTable[i].offset);
+    }
+    // Check the profile is three-component matrix based (what we currently support):
+    if (!tagIndex.contains(Tag::rXYZ) || !tagIndex.contains(Tag::gXYZ) || !tagIndex.contains(Tag::bXYZ) ||
+        !tagIndex.contains(Tag::rTRC) || !tagIndex.contains(Tag::gTRC) || !tagIndex.contains(Tag::bTRC) ||
+        !tagIndex.contains(Tag::wtpt)) {
+        qCWarning(lcIcc) << "fromIccProfile: Unsupported ICC profile - not three component matrix based";
+        return false;
+    }
+
+    // Parse XYZ tags
+    const XYZTagData *rXyz = (const XYZTagData *)(data.constData() + tagIndex[Tag::rXYZ]);
+    const XYZTagData *gXyz = (const XYZTagData *)(data.constData() + tagIndex[Tag::gXYZ]);
+    const XYZTagData *bXyz = (const XYZTagData *)(data.constData() + tagIndex[Tag::bXYZ]);
+    const XYZTagData *wXyz = (const XYZTagData *)(data.constData() + tagIndex[Tag::wtpt]);
+    if (rXyz->type != quint32(Tag::XYZ_) || gXyz->type != quint32(Tag::XYZ_) ||
+        wXyz->type != quint32(Tag::XYZ_) || wXyz->type != quint32(Tag::XYZ_)) {
+        qCWarning(lcIcc) << "fromIccProfile: Bad XYZ data type";
+        return false;
+    }
+    QColorSpacePrivate *colorspaceDPtr = colorSpace->d_func();
+
+    colorspaceDPtr->toXyz.r = fromXyzData(rXyz);
+    colorspaceDPtr->toXyz.g = fromXyzData(gXyz);
+    colorspaceDPtr->toXyz.b = fromXyzData(bXyz);
+    QColorVector whitePoint = fromXyzData(wXyz);
+    colorspaceDPtr->whitePoint = whitePoint;
+
+    colorspaceDPtr->gamut = QColorSpace::Gamut::Custom;
+    if (colorspaceDPtr->toXyz == QColorMatrix::toXyzFromSRgb()) {
+        qCDebug(lcIcc) << "fromIccProfile: sRGB gamut detected";
+        colorspaceDPtr->gamut = QColorSpace::Gamut::SRgb;
+    } else if (colorspaceDPtr->toXyz == QColorMatrix::toXyzFromAdobeRgb()) {
+        qCDebug(lcIcc) << "fromIccProfile: Adobe RGB gamut detected";
+        colorspaceDPtr->gamut = QColorSpace::Gamut::AdobeRgb;
+    } else if (colorspaceDPtr->toXyz == QColorMatrix::toXyzFromDciP3D65()) {
+        qCDebug(lcIcc) << "fromIccProfile: DCI-P3 D65 gamut detected";
+        colorspaceDPtr->gamut = QColorSpace::Gamut::DciP3D65;
+    } else if (colorspaceDPtr->toXyz == QColorMatrix::toXyzFromBt2020()) {
+        qCDebug(lcIcc) << "fromIccProfile: BT.2020 gamut detected";
+        colorspaceDPtr->gamut = QColorSpace::Gamut::Bt2020;
+    }
+    if (colorspaceDPtr->toXyz == QColorMatrix::toXyzFromProPhotoRgb()) {
+        qCDebug(lcIcc) << "fromIccProfile: ProPhoto RGB gamut detected";
+        colorspaceDPtr->gamut = QColorSpace::Gamut::ProPhotoRgb;
+    }
+    // Reset the matrix to our canonical values:
+    if (colorspaceDPtr->gamut != QColorSpace::Gamut::Custom)
+        colorspaceDPtr->setToXyzMatrix();
+
+    // Parse TRC tags
+    const GenericTagData *rTrc;
+    const GenericTagData *gTrc;
+    const GenericTagData *bTrc;
+    if (tagIndex.contains(Tag::aarg) && tagIndex.contains(Tag::aagg) && tagIndex.contains(Tag::aabg)) {
+        // Apple extension for parametric version of TRCs in ICCv2:
+        rTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::aarg]);
+        gTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::aagg]);
+        bTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::aabg]);
+    } else {
+        rTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::rTRC]);
+        gTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::gTRC]);
+        bTrc = (const GenericTagData *)(data.constData() + tagIndex[Tag::bTRC]);
+    }
+
+    QColorTrc rCurve;
+    QColorTrc gCurve;
+    QColorTrc bCurve;
+    if (!parseTRC(rTrc, rCurve))
+        return false;
+    if (!parseTRC(gTrc, gCurve))
+        return false;
+    if (!parseTRC(bTrc, bCurve))
+        return false;
+    if (rCurve == gCurve && gCurve == bCurve && rCurve.m_type == QColorTrc::Type::Function) {
+        if (rCurve.m_fun.isLinear()) {
+            qCDebug(lcIcc) << "fromIccProfile: Linear gamma detected";
+            colorspaceDPtr->trc[0] = QColorTransferFunction();
+            colorspaceDPtr->transferFunction = QColorSpace::TransferFunction::Linear;
+            colorspaceDPtr->gamma = 1.0f;
+        } else if (rCurve.m_fun.isGamma()) {
+            qCDebug(lcIcc) << "fromIccProfile: Simple gamma detected";
+            colorspaceDPtr->trc[0] = QColorTransferFunction::fromGamma(rCurve.m_fun.m_g);
+            colorspaceDPtr->transferFunction = QColorSpace::TransferFunction::Gamma;
+            colorspaceDPtr->gamma = rCurve.m_fun.m_g;
+        } else if (rCurve.m_fun.isSRgb()) {
+            qCDebug(lcIcc) << "fromIccProfile: sRGB gamma detected";
+            colorspaceDPtr->trc[0] = QColorTransferFunction::fromSRgb();
+            colorspaceDPtr->transferFunction = QColorSpace::TransferFunction::SRgb;
+        } else {
+            colorspaceDPtr->trc[0] = rCurve;
+            colorspaceDPtr->transferFunction = QColorSpace::TransferFunction::Custom;
+        }
+
+        colorspaceDPtr->trc[1] = colorspaceDPtr->trc[0];
+        colorspaceDPtr->trc[2] = colorspaceDPtr->trc[0];
+    } else {
+        colorspaceDPtr->trc[0] = rCurve;
+        colorspaceDPtr->trc[1] = gCurve;
+        colorspaceDPtr->trc[2] = bCurve;
+        colorspaceDPtr->transferFunction = QColorSpace::TransferFunction::Custom;
+    }
+
+    // FIXME: try to parse the description..
+
+    if (!colorspaceDPtr->identifyColorSpace())
+        colorspaceDPtr->id = QColorSpace::Unknown;
+    else
+        qCDebug(lcIcc) << "fromIccProfile: Named colorspace detected: " << colorSpace->colorSpaceId();
+
+    colorspaceDPtr->iccProfile = data;
+
+    return true;
+}
+
+} // namespace QIcc
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/mirclient/qmirclientlogging.h b/src/gui/painting/qicc_p.h
index 4921864ced..c3220391f4 100644
--- a/src/plugins/platforms/mirclient/qmirclientlogging.h
+++ b/src/gui/painting/qicc_p.h
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the plugins of the Qt Toolkit.
+** This file is part of the QtGui module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
@@ -37,19 +37,34 @@
 **
 ****************************************************************************/
 
+#ifndef QICC_P_H
+#define QICC_P_H
 
-#ifndef QMIRCLIENTLOGGING_H
-#define QMIRCLIENTLOGGING_H
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
 
-#include <QLoggingCategory>
+#include <QtCore/qbytearray.h>
+#include <QtGui/qtguiglobal.h>
 
-#define ASSERT(cond) ((!(cond)) ? qt_assert(#cond,__FILE__,__LINE__) : qt_noop())
+QT_BEGIN_NAMESPACE
 
-Q_DECLARE_LOGGING_CATEGORY(mirclient)
-Q_DECLARE_LOGGING_CATEGORY(mirclientBufferSwap)
-Q_DECLARE_LOGGING_CATEGORY(mirclientInput)
-Q_DECLARE_LOGGING_CATEGORY(mirclientGraphics)
-Q_DECLARE_LOGGING_CATEGORY(mirclientCursor)
-Q_DECLARE_LOGGING_CATEGORY(mirclientDebug)
+class QColorSpace;
 
-#endif  // QMIRCLIENTLOGGING_H
+namespace QIcc {
+
+Q_GUI_EXPORT bool fromIccProfile(const QByteArray &data, QColorSpace *colorSpace);
+Q_GUI_EXPORT QByteArray toIccProfile(const QColorSpace &space);
+
+}
+
+QT_END_NAMESPACE
+
+#endif // QICC_P_H
diff --git a/src/gui/painting/qimagescale.cpp b/src/gui/painting/qimagescale.cpp
index 8a5274bd37..0d7205b483 100644
--- a/src/gui/painting/qimagescale.cpp
+++ b/src/gui/painting/qimagescale.cpp
@@ -528,6 +528,7 @@ static void qt_qimageScaleAARGBA_down_xy(QImageScaleInfo *isi, unsigned int *des
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 static void qt_qimageScaleRgba64_up_x_down_y(QImageScaleInfo *isi, QRgba64 *dest,
                                              int dw, int dh, int dow, int sow);
 
@@ -728,6 +729,7 @@ static void qt_qimageScaleRgba64_down_xy(QImageScaleInfo *isi, QRgba64 *dest,
         }
     }
 }
+#endif
 
 static void qt_qimageScaleAARGB_up_x_down_y(QImageScaleInfo *isi, unsigned int *dest,
                                             int dw, int dh, int dow, int sow);
@@ -945,10 +947,13 @@ QImage qSmoothScaleImage(const QImage &src, int dw, int dh)
         return QImage();
     }
 
+#if QT_CONFIG(raster_64bit)
     if (src.depth() > 32)
         qt_qimageScaleRgba64(scaleinfo, (QRgba64 *)buffer.scanLine(0),
                              dw, dh, dw, src.bytesPerLine() / 8);
-    else if (src.hasAlphaChannel())
+    else
+#endif
+    if (src.hasAlphaChannel())
         qt_qimageScaleAARGBA(scaleinfo, (unsigned int *)buffer.scanLine(0),
                              dw, dh, dw, src.bytesPerLine() / 4);
     else
diff --git a/src/gui/painting/qmatrix.cpp b/src/gui/painting/qmatrix.cpp
index 24b33243da..b1f01332b6 100644
--- a/src/gui/painting/qmatrix.cpp
+++ b/src/gui/painting/qmatrix.cpp
@@ -248,7 +248,7 @@ QMatrix::QMatrix(qreal m11, qreal m12, qreal m21, qreal m22, qreal dx, qreal dy)
 /*!
      Constructs a matrix that is a copy of the given \a matrix.
  */
-QMatrix::QMatrix(const QMatrix &matrix) Q_DECL_NOTHROW
+QMatrix::QMatrix(const QMatrix &matrix) noexcept
     : _m11(matrix._m11)
     , _m12(matrix._m12)
     , _m21(matrix._m21)
@@ -989,7 +989,7 @@ bool QMatrix::operator==(const QMatrix &m) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QMatrix &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QMatrix &key, uint seed) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.m11());
@@ -1068,7 +1068,7 @@ QMatrix QMatrix::operator *(const QMatrix &m) const
 /*!
     Assigns the given \a matrix's values to this matrix.
 */
-QMatrix &QMatrix::operator=(const QMatrix &matrix) Q_DECL_NOTHROW
+QMatrix &QMatrix::operator=(const QMatrix &matrix) noexcept
 {
     _m11 = matrix._m11;
     _m12 = matrix._m12;
diff --git a/src/gui/painting/qmatrix.h b/src/gui/painting/qmatrix.h
index d8a4fcfb1c..a167260ade 100644
--- a/src/gui/painting/qmatrix.h
+++ b/src/gui/painting/qmatrix.h
@@ -64,12 +64,12 @@ public:
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     // ### Qt 6: remove; the compiler-generated ones are fine!
-    QMatrix &operator=(QMatrix &&other) Q_DECL_NOTHROW // = default
+    QMatrix &operator=(QMatrix &&other) noexcept // = default
     { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QMatrix)); return *this; }
-    QMatrix &operator=(const QMatrix &) Q_DECL_NOTHROW; // = default
-    QMatrix(QMatrix &&other) Q_DECL_NOTHROW // = default
+    QMatrix &operator=(const QMatrix &) noexcept; // = default
+    QMatrix(QMatrix &&other) noexcept // = default
     { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QMatrix)); }
-    QMatrix(const QMatrix &other) Q_DECL_NOTHROW; // = default
+    QMatrix(const QMatrix &other) noexcept; // = default
 #endif
 
     void setMatrix(qreal m11, qreal m12, qreal m21, qreal m22,
@@ -140,7 +140,7 @@ private:
 };
 Q_DECLARE_TYPEINFO(QMatrix, Q_MOVABLE_TYPE);
 
-Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QMatrix &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QMatrix &key, uint seed = 0) noexcept;
 
 // mathematical semantics
 inline QPoint operator*(const QPoint &p, const QMatrix &m)
diff --git a/src/gui/painting/qoutlinemapper.cpp b/src/gui/painting/qoutlinemapper.cpp
index b2d02182c3..2074f98069 100644
--- a/src/gui/painting/qoutlinemapper.cpp
+++ b/src/gui/painting/qoutlinemapper.cpp
@@ -42,6 +42,7 @@
 #include "qbezier_p.h"
 #include "qmath.h"
 #include "qpainterpath_p.h"
+#include "qscopedvaluerollback.h"
 
 #include <stdlib.h>
 
@@ -354,7 +355,7 @@ void QOutlineMapper::clipElements(const QPointF *elements,
     // instead of going through convenience functionallity, but since
     // this part of code hardly every used, it shouldn't matter.
 
-    m_in_clip_elements = true;
+    QScopedValueRollback<bool> in_clip_elements(m_in_clip_elements, true);
 
     QPainterPath path;
 
@@ -397,8 +398,6 @@ void QOutlineMapper::clipElements(const QPointF *elements,
         convertPath(clippedPath);
         m_transform = oldTransform;
     }
-
-    m_in_clip_elements = false;
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qoutlinemapper_p.h b/src/gui/painting/qoutlinemapper_p.h
index 71999fbdee..04a68797c2 100644
--- a/src/gui/painting/qoutlinemapper_p.h
+++ b/src/gui/painting/qoutlinemapper_p.h
@@ -180,13 +180,13 @@ public:
     QT_FT_Outline *outline() {
         if (m_valid)
             return &m_outline;
-        return 0;
+        return nullptr;
     }
 
     QT_FT_Outline *convertPath(const QPainterPath &path);
     QT_FT_Outline *convertPath(const QVectorPath &path);
 
-    inline QPainterPath::ElementType *elementTypes() const { return m_element_types.size() == 0 ? 0 : m_element_types.data(); }
+    inline QPainterPath::ElementType *elementTypes() const { return m_element_types.size() == 0 ? nullptr : m_element_types.data(); }
 
 public:
     QDataBuffer<QPainterPath::ElementType> m_element_types;
diff --git a/src/gui/painting/qpagelayout.h b/src/gui/painting/qpagelayout.h
index b41689d33b..7ee0ce7a76 100644
--- a/src/gui/painting/qpagelayout.h
+++ b/src/gui/painting/qpagelayout.h
@@ -82,13 +82,11 @@ public:
                 const QMarginsF &margins, Unit units = Point,
                 const QMarginsF &minMargins = QMarginsF(0, 0, 0, 0));
     QPageLayout(const QPageLayout &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPageLayout &operator=(QPageLayout &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QPageLayout &operator=(QPageLayout &&other) noexcept { swap(other); return *this; }
     QPageLayout &operator=(const QPageLayout &other);
     ~QPageLayout();
 
-    void swap(QPageLayout &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QPageLayout &other) noexcept { qSwap(d, other.d); }
 
     friend Q_GUI_EXPORT bool operator==(const QPageLayout &lhs, const QPageLayout &rhs);
     bool isEquivalentTo(const QPageLayout &other) const;
diff --git a/src/gui/painting/qpagesize.h b/src/gui/painting/qpagesize.h
index 82054824b4..133274760f 100644
--- a/src/gui/painting/qpagesize.h
+++ b/src/gui/painting/qpagesize.h
@@ -236,14 +236,12 @@ public:
                        const QString &name = QString(),
                        SizeMatchPolicy matchPolicy = FuzzyMatch);
     QPageSize(const QPageSize &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPageSize &operator=(QPageSize &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QPageSize &operator=(QPageSize &&other) noexcept { swap(other); return *this; }
     QPageSize &operator=(const QPageSize &other);
     ~QPageSize();
 
 
-    void swap(QPageSize &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QPageSize &other) noexcept { qSwap(d, other.d); }
 
     friend Q_GUI_EXPORT bool operator==(const QPageSize &lhs, const QPageSize &rhs);
     bool isEquivalentTo(const QPageSize &other) const;
diff --git a/src/gui/painting/qpaintdevice.cpp b/src/gui/painting/qpaintdevice.cpp
index faaa316085..0ddfba6ee9 100644
--- a/src/gui/painting/qpaintdevice.cpp
+++ b/src/gui/painting/qpaintdevice.cpp
@@ -41,7 +41,7 @@
 
 QT_BEGIN_NAMESPACE
 
-QPaintDevice::QPaintDevice() Q_DECL_NOEXCEPT
+QPaintDevice::QPaintDevice() noexcept
 {
     reserved = 0;
     painters = 0;
diff --git a/src/gui/painting/qpaintdevice.h b/src/gui/painting/qpaintdevice.h
index 9458b4ba9a..5f8dad205d 100644
--- a/src/gui/painting/qpaintdevice.h
+++ b/src/gui/painting/qpaintdevice.h
@@ -90,7 +90,7 @@ public:
 
     static inline qreal devicePixelRatioFScale() { return 0x10000; }
 protected:
-    QPaintDevice() Q_DECL_NOEXCEPT;
+    QPaintDevice() noexcept;
     virtual int metric(PaintDeviceMetric metric) const;
     virtual void initPainter(QPainter *painter) const;
     virtual QPaintDevice *redirected(QPoint *offset) const;
diff --git a/src/gui/painting/qpaintengine_p.h b/src/gui/painting/qpaintengine_p.h
index 8ac3fcff5c..40b9474165 100644
--- a/src/gui/painting/qpaintengine_p.h
+++ b/src/gui/painting/qpaintengine_p.h
@@ -65,7 +65,7 @@ class Q_GUI_EXPORT QPaintEnginePrivate
 {
     Q_DECLARE_PUBLIC(QPaintEngine)
 public:
-    QPaintEnginePrivate() : pdev(0), q_ptr(0), currentClipDevice(0), hasSystemTransform(0),
+    QPaintEnginePrivate() : pdev(nullptr), q_ptr(nullptr), currentClipDevice(nullptr), hasSystemTransform(0),
                             hasSystemViewport(0) {}
     virtual ~QPaintEnginePrivate();
 
@@ -138,8 +138,8 @@ public:
 
     static QPaintEnginePrivate *get(QPaintEngine *paintEngine) { return paintEngine->d_func(); }
 
-    virtual QPaintEngine *aggregateEngine() { return 0; }
-    virtual Qt::HANDLE nativeHandle() { return 0; }
+    virtual QPaintEngine *aggregateEngine() { return nullptr; }
+    virtual Qt::HANDLE nativeHandle() { return nullptr; }
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 65319c0804..85ddff53db 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -555,35 +555,6 @@ bool QRasterPaintEngine::end()
 /*!
     \internal
 */
-void QRasterPaintEngine::releaseBuffer()
-{
-    Q_D(QRasterPaintEngine);
-    d->rasterBuffer.reset(new QRasterBuffer);
-}
-
-/*!
-    \internal
-*/
-QSize QRasterPaintEngine::size() const
-{
-    Q_D(const QRasterPaintEngine);
-    return QSize(d->rasterBuffer->width(), d->rasterBuffer->height());
-}
-
-/*!
-    \internal
-*/
-#ifndef QT_NO_DEBUG
-void QRasterPaintEngine::saveBuffer(const QString &s) const
-{
-    Q_D(const QRasterPaintEngine);
-    d->rasterBuffer->bufferImage().save(s, "PNG");
-}
-#endif
-
-/*!
-    \internal
-*/
 void QRasterPaintEngine::updateMatrix(const QTransform &matrix)
 {
     QRasterPaintEngineState *s = state();
@@ -927,7 +898,7 @@ void QRasterPaintEngine::renderHintsChanged()
     QRasterPaintEngineState *s = state();
 
 #ifdef QT_DEBUG_DRAW
-    qDebug() << "QRasterPaintEngine::renderHintsChanged()" << hex << s->renderHints;
+    qDebug() << "QRasterPaintEngine::renderHintsChanged()" << Qt::hex << s->renderHints;
 #endif
 
     bool was_aa = s->flags.antialiased;
@@ -1774,7 +1745,7 @@ void QRasterPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
     QRectF rf = path.controlPointRect();
     qDebug() << "QRasterPaintEngine::fill(): "
              << "size=" << path.elementCount()
-             << ", hints=" << hex << path.hints()
+             << ", hints=" << Qt::hex << path.hints()
              << rf << brush;
 #endif
 
@@ -3845,11 +3816,6 @@ QImage::Format QRasterBuffer::prepare(QImage *image)
     return format;
 }
 
-void QRasterBuffer::resetBuffer(int val)
-{
-    memset(m_buffer, val, m_height*bytes_per_line);
-}
-
 QClipData::QClipData(int height)
 {
     clipSpanHeight = height;
@@ -4272,55 +4238,13 @@ static void qt_span_clip(int count, const QSpan *spans, void *userData)
     }
 }
 
-#ifndef QT_NO_DEBUG
-QImage QRasterBuffer::bufferImage() const
-{
-    QImage image(m_width, m_height, QImage::Format_ARGB32_Premultiplied);
-
-    for (int y = 0; y < m_height; ++y) {
-        uint *span = (uint *)const_cast<QRasterBuffer *>(this)->scanLine(y);
-
-        for (int x=0; x<m_width; ++x) {
-            uint argb = span[x];
-            image.setPixel(x, y, argb);
-        }
-    }
-    return image;
-}
-#endif
-
-
-void QRasterBuffer::flushToARGBImage(QImage *target) const
-{
-    int w = qMin(m_width, target->width());
-    int h = qMin(m_height, target->height());
-
-    for (int y=0; y<h; ++y) {
-        uint *sourceLine = (uint *)const_cast<QRasterBuffer *>(this)->scanLine(y);
-        QRgb *dest = (QRgb *) target->scanLine(y);
-        for (int x=0; x<w; ++x) {
-            QRgb pixel = sourceLine[x];
-            int alpha = qAlpha(pixel);
-            if (!alpha) {
-                dest[x] = 0;
-            } else {
-                dest[x] = (alpha << 24)
-                        | ((255*qRed(pixel)/alpha) << 16)
-                        | ((255*qGreen(pixel)/alpha) << 8)
-                        | ((255*qBlue(pixel)/alpha) << 0);
-            }
-        }
-    }
-}
-
-
 class QGradientCache
 {
 public:
     struct CacheInfo : QSpanData::Pinnable
     {
         inline CacheInfo(QGradientStops s, int op, QGradient::InterpolationMode mode) :
-            stops(qMove(s)), opacity(op), interpolationMode(mode) {}
+            stops(std::move(s)), opacity(op), interpolationMode(mode) {}
         QRgba64 buffer64[GRADIENT_STOPTABLE_SIZE];
         QRgb buffer32[GRADIENT_STOPTABLE_SIZE];
         QGradientStops stops;
@@ -4607,7 +4531,9 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
 
             auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             gradient.colorTable32 = cacheInfo->buffer32;
+#if QT_CONFIG(raster_64bit)
             gradient.colorTable64 = cacheInfo->buffer64;
+#endif
             cachedGradient = std::move(cacheInfo);
 
             gradient.spread = g->spread();
@@ -4629,7 +4555,9 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
 
             auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             gradient.colorTable32 = cacheInfo->buffer32;
+#if QT_CONFIG(raster_64bit)
             gradient.colorTable64 = cacheInfo->buffer64;
+#endif
             cachedGradient = std::move(cacheInfo);
 
             gradient.spread = g->spread();
@@ -4655,7 +4583,9 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
 
             auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             gradient.colorTable32 = cacheInfo->buffer32;
+#if QT_CONFIG(raster_64bit)
             gradient.colorTable64 = cacheInfo->buffer64;
+#endif
             cachedGradient = std::move(cacheInfo);
 
             gradient.spread = QGradient::RepeatSpread;
diff --git a/src/gui/painting/qpaintengine_raster_p.h b/src/gui/painting/qpaintengine_raster_p.h
index 881144d1c2..500e0fae54 100644
--- a/src/gui/painting/qpaintengine_raster_p.h
+++ b/src/gui/painting/qpaintengine_raster_p.h
@@ -208,15 +208,6 @@ public:
     ClipType clipType() const;
     QRect clipBoundingRect() const;
 
-    void releaseBuffer();
-
-    QSize size() const;
-
-#ifndef QT_NO_DEBUG
-    void saveBuffer(const QString &s) const;
-#endif
-
-
 #ifdef Q_OS_WIN
     void setDC(HDC hdc);
     HDC getDC() const;
@@ -435,27 +426,16 @@ inline void QClipData::appendSpans(const QSpan *s, int num)
 class QRasterBuffer
 {
 public:
-    QRasterBuffer() : m_width(0), m_height(0), m_buffer(0) { init(); }
+    QRasterBuffer() : m_width(0), m_height(0), m_buffer(nullptr) { init(); }
 
     ~QRasterBuffer();
 
     void init();
 
     QImage::Format prepare(QImage *image);
-    QImage::Format prepare(QPixmap *pix);
-    void prepare(int w, int h);
-    void prepareBuffer(int w, int h);
-
-    void resetBuffer(int val=0);
 
     uchar *scanLine(int y) { Q_ASSERT(y>=0); Q_ASSERT(y<m_height); return m_buffer + y * bytes_per_line; }
 
-#ifndef QT_NO_DEBUG
-    QImage bufferImage() const;
-#endif
-
-    void flushToARGBImage(QImage *image) const;
-
     int width() const { return m_width; }
     int height() const { return m_height; }
     int bytesPerLine() const { return bytes_per_line; }
diff --git a/src/gui/painting/qpaintengineex.cpp b/src/gui/painting/qpaintengineex.cpp
index 22d3fb3001..8314e8bc8a 100644
--- a/src/gui/painting/qpaintengineex.cpp
+++ b/src/gui/painting/qpaintengineex.cpp
@@ -140,7 +140,7 @@ QDebug Q_GUI_EXPORT &operator<<(QDebug &s, const QVectorPath &path)
     QDebugStateSaver saver(s);
     QRectF rf = path.controlPointRect();
     s << "QVectorPath(size:" << path.elementCount()
-      << " hints:" << hex << path.hints()
+      << " hints:" << Qt::hex << path.hints()
       << rf << ')';
     return s;
 }
diff --git a/src/gui/painting/qpainter_p.h b/src/gui/painting/qpainter_p.h
index 930180e9fa..bd2bc4c9b3 100644
--- a/src/gui/painting/qpainter_p.h
+++ b/src/gui/painting/qpainter_p.h
@@ -54,6 +54,8 @@
 #include <QtCore/qvarlengtharray.h>
 #include <QtGui/private/qtguiglobal_p.h>
 #include "QtGui/qbrush.h"
+#include "QtGui/qcolorspace.h"
+#include "QtGui/qcolortransform.h"
 #include "QtGui/qfont.h"
 #include "QtGui/qpen.h"
 #include "QtGui/qregion.h"
@@ -191,9 +193,9 @@ class QPainterPrivate
     Q_DECLARE_PUBLIC(QPainter)
 public:
     QPainterPrivate(QPainter *painter)
-    : q_ptr(painter), d_ptrs(0), state(0), dummyState(0), txinv(0), inDestructor(false), d_ptrs_size(0),
-        refcount(1), device(0), original_device(0), helper_device(0), engine(0), emulationEngine(0),
-        extended(0)
+    : q_ptr(painter), d_ptrs(nullptr), state(nullptr), dummyState(nullptr), txinv(0), inDestructor(false), d_ptrs_size(0),
+        refcount(1), device(nullptr), original_device(nullptr), helper_device(nullptr), engine(nullptr), emulationEngine(nullptr),
+        extended(nullptr)
     {
     }
 
diff --git a/src/gui/painting/qpainterpath.cpp b/src/gui/painting/qpainterpath.cpp
index 42f94d038f..7eaa4b6e3f 100644
--- a/src/gui/painting/qpainterpath.cpp
+++ b/src/gui/painting/qpainterpath.cpp
@@ -527,7 +527,7 @@ void QPainterPath::setElementPositionAt(int i, qreal x, qreal y)
 /*!
     Constructs an empty QPainterPath object.
 */
-QPainterPath::QPainterPath() Q_DECL_NOEXCEPT
+QPainterPath::QPainterPath() noexcept
     : d_ptr(0)
 {
 }
@@ -3576,10 +3576,10 @@ void QPainterPath::computeControlPointRect() const
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug s, const QPainterPath &p)
 {
-    s.nospace() << "QPainterPath: Element count=" << p.elementCount() << endl;
+    s.nospace() << "QPainterPath: Element count=" << p.elementCount() << Qt::endl;
     const char *types[] = {"MoveTo", "LineTo", "CurveTo", "CurveToData"};
     for (int i=0; i<p.elementCount(); ++i) {
-        s.nospace() << " -> " << types[p.elementAt(i).type] << "(x=" << p.elementAt(i).x << ", y=" << p.elementAt(i).y << ')' << endl;
+        s.nospace() << " -> " << types[p.elementAt(i).type] << "(x=" << p.elementAt(i).x << ", y=" << p.elementAt(i).y << ')' << Qt::endl;
 
     }
     return s;
diff --git a/src/gui/painting/qpainterpath.h b/src/gui/painting/qpainterpath.h
index a69a192767..ed5be667b7 100644
--- a/src/gui/painting/qpainterpath.h
+++ b/src/gui/painting/qpainterpath.h
@@ -88,17 +88,15 @@ public:
         inline bool operator!=(const Element &e) const { return !operator==(e); }
     };
 
-    QPainterPath() Q_DECL_NOEXCEPT;
+    QPainterPath() noexcept;
     explicit QPainterPath(const QPointF &startPoint);
     QPainterPath(const QPainterPath &other);
     QPainterPath &operator=(const QPainterPath &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QPainterPath &operator=(QPainterPath &&other) Q_DECL_NOEXCEPT
+    inline QPainterPath &operator=(QPainterPath &&other) noexcept
     { qSwap(d_ptr, other.d_ptr); return *this; }
-#endif
     ~QPainterPath();
 
-    inline void swap(QPainterPath &other) Q_DECL_NOEXCEPT { d_ptr.swap(other.d_ptr); }
+    inline void swap(QPainterPath &other) noexcept { d_ptr.swap(other.d_ptr); }
 
     void clear();
     void reserve(int size);
diff --git a/src/gui/painting/qpainterpath_p.h b/src/gui/painting/qpainterpath_p.h
index a36c8005bc..98056483bc 100644
--- a/src/gui/painting/qpainterpath_p.h
+++ b/src/gui/painting/qpainterpath_p.h
@@ -168,7 +168,7 @@ public:
         fillRule(Qt::OddEvenFill),
         dirtyBounds(false),
         dirtyControlBounds(false),
-        pathConverter(0)
+        pathConverter(nullptr)
     {
         require_moveTo = false;
         convex = false;
@@ -181,7 +181,7 @@ public:
         dirtyBounds(other.dirtyBounds),
         dirtyControlBounds(other.dirtyControlBounds),
         convex(other.convex),
-        pathConverter(0)
+        pathConverter(nullptr)
     {
         require_moveTo = false;
         elements = other.elements;
diff --git a/src/gui/painting/qpathclipper_p.h b/src/gui/painting/qpathclipper_p.h
index c25a479807..9444a87b71 100644
--- a/src/gui/painting/qpathclipper_p.h
+++ b/src/gui/painting/qpathclipper_p.h
@@ -82,7 +82,7 @@ public:
     bool intersect();
     bool contains();
 
-    static bool pathToRect(const QPainterPath &path, QRectF *rect = 0);
+    static bool pathToRect(const QPainterPath &path, QRectF *rect = nullptr);
     static QPainterPath intersect(const QPainterPath &path, const QRectF &rect);
 
 private:
@@ -394,7 +394,7 @@ inline const QPathSegments::Intersection *QPathSegments::intersectionAt(int inde
 {
     const int intersection = m_segments.at(index).intersection;
     if (intersection < 0)
-        return 0;
+        return nullptr;
     else
         return &m_intersections.at(intersection);
 }
@@ -428,12 +428,12 @@ inline int QWingedEdge::edgeCount() const
 
 inline QPathEdge *QWingedEdge::edge(int edge)
 {
-    return edge < 0 ? 0 : &m_edges.at(edge);
+    return edge < 0 ? nullptr : &m_edges.at(edge);
 }
 
 inline const QPathEdge *QWingedEdge::edge(int edge) const
 {
-    return edge < 0 ? 0 : &m_edges.at(edge);
+    return edge < 0 ? nullptr : &m_edges.at(edge);
 }
 
 inline int QWingedEdge::vertexCount() const
@@ -449,12 +449,12 @@ inline int QWingedEdge::addVertex(const QPointF &p)
 
 inline QPathVertex *QWingedEdge::vertex(int vertex)
 {
-    return vertex < 0 ? 0 : &m_vertices.at(vertex);
+    return vertex < 0 ? nullptr : &m_vertices.at(vertex);
 }
 
 inline const QPathVertex *QWingedEdge::vertex(int vertex) const
 {
-    return vertex < 0 ? 0 : &m_vertices.at(vertex);
+    return vertex < 0 ? nullptr : &m_vertices.at(vertex);
 }
 
 inline QPathEdge::Traversal QWingedEdge::flip(QPathEdge::Traversal traversal)
diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp
index 6bdc82a8e9..25d488961c 100644
--- a/src/gui/painting/qpdf.cpp
+++ b/src/gui/painting/qpdf.cpp
@@ -1671,19 +1671,19 @@ int QPdfEnginePrivate::writeXmpMetaData()
     const QDateTime now = QDateTime::currentDateTime();
     const QDate date = now.date();
     const QTime time = now.time();
-
-    QString timeStr;
-    timeStr.sprintf("%d-%02d-%02dT%02d:%02d:%02d", date.year(), date.month(), date.day(),
-                                                   time.hour(), time.minute(), time.second());
+    const QString timeStr =
+            QString::asprintf("%d-%02d-%02dT%02d:%02d:%02d",
+                              date.year(), date.month(), date.day(),
+                              time.hour(), time.minute(), time.second());
 
     const int offset = now.offsetFromUtc();
     const int hours  = (offset / 60) / 60;
     const int mins   = (offset / 60) % 60;
     QString tzStr;
     if (offset < 0)
-        tzStr.sprintf("-%02d:%02d", -hours, -mins);
+        tzStr = QString::asprintf("-%02d:%02d", -hours, -mins);
     else if (offset > 0)
-        tzStr.sprintf("+%02d:%02d", hours , mins);
+        tzStr = QString::asprintf("+%02d:%02d", hours , mins);
     else
         tzStr = QLatin1String("Z");
 
diff --git a/src/gui/painting/qpdfwriter.cpp b/src/gui/painting/qpdfwriter.cpp
index 258939a763..7f18ce42be 100644
--- a/src/gui/painting/qpdfwriter.cpp
+++ b/src/gui/painting/qpdfwriter.cpp
@@ -379,6 +379,9 @@ int QPdfWriter::resolution() const
 */
 #endif
 
+#if QT_DEPRECATED_SINCE(5, 14)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
 /*!
     \reimp
 
@@ -404,6 +407,8 @@ void QPdfWriter::setPageSizeMM(const QSizeF &size)
 {
     setPageSize(QPageSize(size, QPageSize::Millimeter));
 }
+QT_WARNING_POP
+#endif
 
 /*!
     \internal
@@ -427,6 +432,9 @@ bool QPdfWriter::newPage()
 }
 
 
+#if QT_DEPRECATED_SINCE(5, 14)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
 /*!
     \reimp
 
@@ -438,6 +446,8 @@ void QPdfWriter::setMargins(const Margins &m)
 {
     setPageMargins(QMarginsF(m.left, m.top, m.right, m.bottom), QPageLayout::Millimeter);
 }
+QT_WARNING_POP
+#endif
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/painting/qpdfwriter.h b/src/gui/painting/qpdfwriter.h
index b260805b2b..668081e008 100644
--- a/src/gui/painting/qpdfwriter.h
+++ b/src/gui/painting/qpdfwriter.h
@@ -86,10 +86,14 @@ public:
     using QPagedPaintDevice::setPageSize;
 #endif
 
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use setPageSize(QPageSize(id)) instead")
     void setPageSize(PageSize size) override;
+    QT_DEPRECATED_X("Use setPageSize(QPageSize(size, QPageSize::Millimeter)) instead")
     void setPageSizeMM(const QSizeF &size) override;
-
+    QT_DEPRECATED_X("Use setPageMargins(QMarginsF(l, t, r, b), QPageLayout::Millimeter) instead")
     void setMargins(const Margins &m) override;
+#endif
 
 protected:
     QPaintEngine *paintEngine() const override;
diff --git a/src/gui/painting/qpen.cpp b/src/gui/painting/qpen.cpp
index 778c770b82..58a1716037 100644
--- a/src/gui/painting/qpen.cpp
+++ b/src/gui/painting/qpen.cpp
@@ -322,7 +322,7 @@ QPen::QPen(const QBrush &brush, qreal width, Qt::PenStyle s, Qt::PenCapStyle c,
     Constructs a pen that is a copy of the given \a pen.
 */
 
-QPen::QPen(const QPen &p) Q_DECL_NOTHROW
+QPen::QPen(const QPen &p) noexcept
 {
     d = p.d;
     if (d)
@@ -381,7 +381,7 @@ void QPen::detach()
     this pen.
 */
 
-QPen &QPen::operator=(const QPen &p) Q_DECL_NOTHROW
+QPen &QPen::operator=(const QPen &p) noexcept
 {
     QPen(p).swap(*this);
     return *this;
diff --git a/src/gui/painting/qpen.h b/src/gui/painting/qpen.h
index 03abfb3d7d..10b11d1d85 100644
--- a/src/gui/painting/qpen.h
+++ b/src/gui/painting/qpen.h
@@ -65,18 +65,16 @@ public:
     QPen(const QColor &color);
     QPen(const QBrush &brush, qreal width, Qt::PenStyle s = Qt::SolidLine,
          Qt::PenCapStyle c = Qt::SquareCap, Qt::PenJoinStyle j = Qt::BevelJoin);
-    QPen(const QPen &pen) Q_DECL_NOTHROW;
+    QPen(const QPen &pen) noexcept;
 
     ~QPen();
 
-    QPen &operator=(const QPen &pen) Q_DECL_NOTHROW;
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPen(QPen &&other) Q_DECL_NOTHROW
+    QPen &operator=(const QPen &pen) noexcept;
+    QPen(QPen &&other) noexcept
         : d(other.d) { other.d = nullptr; }
-    QPen &operator=(QPen &&other) Q_DECL_NOTHROW
+    QPen &operator=(QPen &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    void swap(QPen &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QPen &other) noexcept { qSwap(d, other.d); }
 
     Qt::PenStyle style() const;
     void setStyle(Qt::PenStyle);
diff --git a/src/gui/painting/qplatformbackingstore.h b/src/gui/painting/qplatformbackingstore.h
index de5ba964dc..414d2bf0de 100644
--- a/src/gui/painting/qplatformbackingstore.h
+++ b/src/gui/painting/qplatformbackingstore.h
@@ -85,7 +85,7 @@ public:
     };
     Q_DECLARE_FLAGS(Flags, Flag)
 
-    explicit QPlatformTextureList(QObject *parent = 0);
+    explicit QPlatformTextureList(QObject *parent = nullptr);
     ~QPlatformTextureList();
 
     int count() const;
@@ -99,7 +99,7 @@ public:
     bool isLocked() const;
 
     void appendTexture(void *source, GLuint textureId, const QRect &geometry,
-                       const QRect &clipRect = QRect(), Flags flags = 0);
+                       const QRect &clipRect = QRect(), Flags flags = nullptr);
     void clear();
 
  Q_SIGNALS:
diff --git a/src/gui/painting/qpolygon.h b/src/gui/painting/qpolygon.h
index 8e74a499fd..93fab55aa1 100644
--- a/src/gui/painting/qpolygon.h
+++ b/src/gui/painting/qpolygon.h
@@ -60,18 +60,14 @@ public:
     inline ~QPolygon() {}
     inline explicit QPolygon(int size);
     inline /*implicit*/ QPolygon(const QVector<QPoint> &v) : QVector<QPoint>(v) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    /*implicit*/ QPolygon(QVector<QPoint> &&v) Q_DECL_NOTHROW : QVector<QPoint>(std::move(v)) {}
-#endif
+    /*implicit*/ QPolygon(QVector<QPoint> &&v) noexcept : QVector<QPoint>(std::move(v)) {}
     QPolygon(const QRect &r, bool closed=false);
     QPolygon(int nPoints, const int *points);
     QPolygon(const QPolygon &other) : QVector<QPoint>(other) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPolygon(QPolygon &&other) Q_DECL_NOTHROW : QVector<QPoint>(std::move(other)) {}
-    QPolygon &operator=(QPolygon &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QPolygon(QPolygon &&other) noexcept : QVector<QPoint>(std::move(other)) {}
+    QPolygon &operator=(QPolygon &&other) noexcept { swap(other); return *this; }
     QPolygon &operator=(const QPolygon &other) { QVector<QPoint>::operator=(other); return *this; }
-    void swap(QPolygon &other) Q_DECL_NOTHROW { QVector<QPoint>::swap(other); } // prevent QVector<QPoint><->QPolygon swaps
+    void swap(QPolygon &other) noexcept { QVector<QPoint>::swap(other); } // prevent QVector<QPoint><->QPolygon swaps
 
     operator QVariant() const;
 
@@ -145,16 +141,12 @@ public:
     inline ~QPolygonF() {}
     inline explicit QPolygonF(int size);
     inline /*implicit*/ QPolygonF(const QVector<QPointF> &v) : QVector<QPointF>(v) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    /* implicit */ QPolygonF(QVector<QPointF> &&v) Q_DECL_NOTHROW : QVector<QPointF>(std::move(v)) {}
-#endif
+    /* implicit */ QPolygonF(QVector<QPointF> &&v) noexcept : QVector<QPointF>(std::move(v)) {}
     QPolygonF(const QRectF &r);
     /*implicit*/ QPolygonF(const QPolygon &a);
     inline QPolygonF(const QPolygonF &a) : QVector<QPointF>(a) {}
-#ifdef Q_COMPILER_RVALUE_REFS
-    QPolygonF(QPolygonF &&other) Q_DECL_NOTHROW : QVector<QPointF>(std::move(other)) {}
-    QPolygonF &operator=(QPolygonF &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QPolygonF(QPolygonF &&other) noexcept : QVector<QPointF>(std::move(other)) {}
+    QPolygonF &operator=(QPolygonF &&other) noexcept { swap(other); return *this; }
     QPolygonF &operator=(const QPolygonF &other) { QVector<QPointF>::operator=(other); return *this; }
     inline void swap(QPolygonF &other) { QVector<QPointF>::swap(other); } // prevent QVector<QPointF><->QPolygonF swaps
 
diff --git a/src/gui/painting/qrbtree_p.h b/src/gui/painting/qrbtree_p.h
index d3ee23a91c..42e88889a1 100644
--- a/src/gui/painting/qrbtree_p.h
+++ b/src/gui/painting/qrbtree_p.h
@@ -60,7 +60,7 @@ struct QRBTree
 {
     struct Node
     {
-        inline Node() : parent(0), left(0), right(0), red(true) { }
+        inline Node() : parent(nullptr), left(nullptr), right(nullptr), red(true) { }
         inline ~Node() {if (left) delete left; if (right) delete right;}
         T data;
         Node *parent;
@@ -69,7 +69,7 @@ struct QRBTree
         bool red;
     };
 
-    inline QRBTree() : root(0), freeList(0) { }
+    inline QRBTree() : root(nullptr), freeList(nullptr) { }
     inline ~QRBTree();
 
     inline void clear();
@@ -120,7 +120,7 @@ inline QRBTree<T>::~QRBTree()
     while (freeList) {
         // Avoid recursively calling the destructor, as this list may become large.
         Node *next = freeList->right;
-        freeList->right = 0;
+        freeList->right = nullptr;
         delete freeList;
         freeList = next;
     }
@@ -131,7 +131,7 @@ inline void QRBTree<T>::clear()
 {
     if (root)
         delete root;
-    root = 0;
+    root = nullptr;
 }
 
 template <class T>
@@ -359,7 +359,7 @@ void QRBTree<T>::detach(Node *node) // call this before removing a node.
     ref = child;
     if (child)
         child->parent = node->parent;
-    node->left = node->right = node->parent = 0;
+    node->left = node->right = node->parent = nullptr;
 }
 
 // 'node' must be black. rebalance will reduce the depth of black nodes by one in the sibling tree.
@@ -513,7 +513,7 @@ inline void QRBTree<T>::deleteNode(Node *&node)
     detach(node);
     node->right = freeList;
     freeList = node;
-    node = 0;
+    node = nullptr;
 }
 
 template <class T>
@@ -522,7 +522,7 @@ inline typename QRBTree<T>::Node *QRBTree<T>::newNode()
     if (freeList) {
         Node *node = freeList;
         freeList = freeList->right;
-        node->parent = node->left = node->right = 0;
+        node->parent = node->left = node->right = nullptr;
         node->red = true;
         return node;
     }
diff --git a/src/gui/painting/qregion.cpp b/src/gui/painting/qregion.cpp
index 77718ce747..51eed962f0 100644
--- a/src/gui/painting/qregion.cpp
+++ b/src/gui/painting/qregion.cpp
@@ -1287,10 +1287,10 @@ struct QRegionPrivate {
         }
     }
 
-    const QRect *begin() const Q_DECL_NOTHROW
+    const QRect *begin() const noexcept
     { return numRects == 1 ? &extents : rects.data(); } // avoid vectorize()
 
-    const QRect *end() const Q_DECL_NOTHROW
+    const QRect *end() const noexcept
     { return begin() + numRects; }
 
     inline void append(const QRect *r);
@@ -4321,7 +4321,7 @@ QRegion QRegion::xored(const QRegion &r) const
     }
 }
 
-QRect QRegion::boundingRect() const Q_DECL_NOTHROW
+QRect QRegion::boundingRect() const noexcept
 {
     if (isEmpty())
         return QRect();
@@ -4379,12 +4379,12 @@ QVector<QRect> QRegion::rects() const
 }
 #endif
 
-QRegion::const_iterator QRegion::begin() const Q_DECL_NOTHROW
+QRegion::const_iterator QRegion::begin() const noexcept
 {
     return d->qt_rgn ? d->qt_rgn->begin() : nullptr;
 }
 
-QRegion::const_iterator QRegion::end() const Q_DECL_NOTHROW
+QRegion::const_iterator QRegion::end() const noexcept
 {
     return d->qt_rgn ? d->qt_rgn->end() : nullptr;
 }
@@ -4421,7 +4421,7 @@ void QRegion::setRects(const QRect *rects, int num)
     }
 }
 
-int QRegion::rectCount() const Q_DECL_NOTHROW
+int QRegion::rectCount() const noexcept
 {
     return (d->qt_rgn ? d->qt_rgn->numRects : 0);
 }
diff --git a/src/gui/painting/qregion.h b/src/gui/painting/qregion.h
index 9fe6ed5675..54de916198 100644
--- a/src/gui/painting/qregion.h
+++ b/src/gui/painting/qregion.h
@@ -69,30 +69,28 @@ public:
     QRegion(const QRect &r, RegionType t = Rectangle);
     QRegion(const QPolygon &pa, Qt::FillRule fillRule = Qt::OddEvenFill);
     QRegion(const QRegion &region);
-    QRegion(QRegion &&other) Q_DECL_NOTHROW
+    QRegion(QRegion &&other) noexcept
         : d(other.d) { other.d = const_cast<QRegionData*>(&shared_empty); }
     QRegion(const QBitmap &bitmap);
     ~QRegion();
     QRegion &operator=(const QRegion &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QRegion &operator=(QRegion &&other) Q_DECL_NOEXCEPT
+    inline QRegion &operator=(QRegion &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
-    inline void swap(QRegion &other) Q_DECL_NOEXCEPT { qSwap(d, other.d); }
+    inline void swap(QRegion &other) noexcept { qSwap(d, other.d); }
     bool isEmpty() const;
     bool isNull() const;
 
     typedef const QRect *const_iterator;
     typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
 
-    const_iterator begin()  const Q_DECL_NOTHROW;
-    const_iterator cbegin() const Q_DECL_NOTHROW { return begin(); }
-    const_iterator end()    const Q_DECL_NOTHROW;
-    const_iterator cend()   const Q_DECL_NOTHROW { return end(); }
-    const_reverse_iterator rbegin()  const Q_DECL_NOTHROW { return const_reverse_iterator(end()); }
-    const_reverse_iterator crbegin() const Q_DECL_NOTHROW { return rbegin(); }
-    const_reverse_iterator rend()    const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crend()   const Q_DECL_NOTHROW { return rend(); }
+    const_iterator begin()  const noexcept;
+    const_iterator cbegin() const noexcept { return begin(); }
+    const_iterator end()    const noexcept;
+    const_iterator cend()   const noexcept { return end(); }
+    const_reverse_iterator rbegin()  const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crbegin() const noexcept { return rbegin(); }
+    const_reverse_iterator rend()    const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crend()   const noexcept { return rend(); }
 
     bool contains(const QPoint &p) const;
     bool contains(const QRect &r) const;
@@ -121,13 +119,13 @@ public:
     bool intersects(const QRegion &r) const;
     bool intersects(const QRect &r) const;
 
-    QRect boundingRect() const Q_DECL_NOTHROW;
+    QRect boundingRect() const noexcept;
 #if QT_DEPRECATED_SINCE(5, 11)
     QT_DEPRECATED_X("Use begin()/end() instead")
     QVector<QRect> rects() const;
 #endif
     void setRects(const QRect *rect, int num);
-    int rectCount() const Q_DECL_NOTHROW;
+    int rectCount() const noexcept;
 #ifdef Q_COMPILER_MANGLES_RETURN_TYPE
     // ### Qt 6: remove these, they're kept for MSVC compat
     const QRegion operator|(const QRegion &r) const;
diff --git a/src/gui/painting/qstroker.cpp b/src/gui/painting/qstroker.cpp
index 327190b678..5b6990e667 100644
--- a/src/gui/painting/qstroker.cpp
+++ b/src/gui/painting/qstroker.cpp
@@ -173,15 +173,12 @@ template <class Iterator> bool qt_stroke_side(Iterator *it, QStroker *stroker,
                                               bool capFirst, QLineF *startTangent);
 
 /*******************************************************************************
- * QLineF::angle gives us the smalles angle between two lines. Here we
- * want to identify the line's angle direction on the unit circle.
+ * QLineF::angleTo gives us the angle between two lines with respecting the direction.
+ * Here we want to identify the line's angle direction on the unit circle.
  */
 static inline qreal adapted_angle_on_x(const QLineF &line)
 {
-    qreal angle = line.angle(QLineF(0, 0, 1, 0));
-    if (line.dy() > 0)
-        angle = 360 - angle;
-    return angle;
+    return QLineF(0, 0, 1, 0).angleTo(line);
 }
 
 QStrokerOps::QStrokerOps()
@@ -459,7 +456,7 @@ void QStroker::joinPoints(qfixed focal_x, qfixed focal_y, const QLineF &nextLine
     QLineF prevLine(qt_fixed_to_real(m_back2X), qt_fixed_to_real(m_back2Y),
                     qt_fixed_to_real(m_back1X), qt_fixed_to_real(m_back1Y));
     QPointF isect;
-    QLineF::IntersectType type = prevLine.intersect(nextLine, &isect);
+    QLineF::IntersectionType type = prevLine.intersects(nextLine, &isect);
 
     if (join == FlatJoin) {
         QLineF shortCut(prevLine.p2(), nextLine.p1());
diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp
index 99b04aaba6..c21f2cdda4 100644
--- a/src/gui/painting/qtextureglyphcache.cpp
+++ b/src/gui/painting/qtextureglyphcache.cpp
@@ -73,7 +73,7 @@ int QTextureGlyphCache::calculateSubPixelPositionCount(glyph_t glyph) const
             if (path.isEmpty())
                 break;
 
-            images[numImages++] = qMove(img);
+            images[numImages++] = std::move(img);
         } else {
             bool found = false;
             for (int j = 0; j < numImages; ++j) {
@@ -83,7 +83,7 @@ int QTextureGlyphCache::calculateSubPixelPositionCount(glyph_t glyph) const
                 }
             }
             if (!found)
-                images[numImages++] = qMove(img);
+                images[numImages++] = std::move(img);
         }
     }
 
diff --git a/src/gui/painting/qtextureglyphcache_p.h b/src/gui/painting/qtextureglyphcache_p.h
index 3da28872b1..1e83ab46d1 100644
--- a/src/gui/painting/qtextureglyphcache_p.h
+++ b/src/gui/painting/qtextureglyphcache_p.h
@@ -75,7 +75,7 @@ class Q_GUI_EXPORT QTextureGlyphCache : public QFontEngineGlyphCache
 {
 public:
     QTextureGlyphCache(QFontEngine::GlyphFormat format, const QTransform &matrix)
-        : QFontEngineGlyphCache(format, matrix), m_current_fontengine(0),
+        : QFontEngineGlyphCache(format, matrix), m_current_fontengine(nullptr),
                                                m_w(0), m_h(0), m_cx(0), m_cy(0), m_currentRowHeight(0)
         { }
 
diff --git a/src/gui/painting/qtransform.cpp b/src/gui/painting/qtransform.cpp
index 816514a695..7696da7d45 100644
--- a/src/gui/painting/qtransform.cpp
+++ b/src/gui/painting/qtransform.cpp
@@ -265,7 +265,9 @@ QTransform::QTransform()
     , m_13(0), m_23(0), m_33(1)
     , m_type(TxNone)
     , m_dirty(TxNone)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     , d(nullptr)
+#endif
 {
 }
 
@@ -284,7 +286,9 @@ QTransform::QTransform(qreal h11, qreal h12, qreal h13,
     , m_13(h13), m_23(h23), m_33(h33)
     , m_type(TxNone)
     , m_dirty(TxProject)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     , d(nullptr)
+#endif
 {
 }
 
@@ -301,7 +305,9 @@ QTransform::QTransform(qreal h11, qreal h12, qreal h21,
     , m_13(0), m_23(0), m_33(1)
     , m_type(TxNone)
     , m_dirty(TxShear)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     , d(nullptr)
+#endif
 {
 }
 
@@ -317,7 +323,9 @@ QTransform::QTransform(const QMatrix &mtx)
       m_13(0), m_23(0), m_33(1)
     , m_type(TxNone)
     , m_dirty(TxShear)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     , d(nullptr)
+#endif
 {
 }
 
@@ -795,7 +803,7 @@ bool QTransform::operator==(const QTransform &o) const
     Returns the hash value for \a key, using
     \a seed to seed the calculation.
 */
-uint qHash(const QTransform &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QTransform &key, uint seed) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.m11());
@@ -1021,7 +1029,7 @@ QTransform QTransform::operator*(const QTransform &m) const
 /*!
     Assigns the given \a matrix's values to this matrix.
 */
-QTransform & QTransform::operator=(const QTransform &matrix) Q_DECL_NOTHROW
+QTransform & QTransform::operator=(const QTransform &matrix) noexcept
 {
     affine._m11 = matrix.affine._m11;
     affine._m12 = matrix.affine._m12;
diff --git a/src/gui/painting/qtransform.h b/src/gui/painting/qtransform.h
index 1e322d435a..b220770144 100644
--- a/src/gui/painting/qtransform.h
+++ b/src/gui/painting/qtransform.h
@@ -77,13 +77,13 @@ public:
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     // ### Qt 6: remove; the compiler-generated ones are fine!
-    QTransform &operator=(QTransform &&other) Q_DECL_NOTHROW // = default
+    QTransform &operator=(QTransform &&other) noexcept // = default
     { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QTransform)); return *this; }
-    QTransform &operator=(const QTransform &) Q_DECL_NOTHROW; // = default
-    QTransform(QTransform &&other) Q_DECL_NOTHROW // = default
+    QTransform &operator=(const QTransform &) noexcept; // = default
+    QTransform(QTransform &&other) noexcept // = default
         : affine(Qt::Uninitialized)
     { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QTransform)); }
-    QTransform(const QTransform &other) Q_DECL_NOTHROW // = default
+    QTransform(const QTransform &other) noexcept // = default
         : affine(Qt::Uninitialized)
     { memcpy(static_cast<void *>(this), static_cast<const void *>(&other), sizeof(QTransform)); }
 #endif
@@ -176,7 +176,9 @@ private:
         , m_13(h13), m_23(h23), m_33(h33)
         , m_type(TxNone)
         , m_dirty(TxProject)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         , d(nullptr)
+#endif
     {
     }
     inline QTransform(bool)
@@ -184,7 +186,9 @@ private:
         , m_13(0), m_23(0), m_33(1)
         , m_type(TxNone)
         , m_dirty(TxNone)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         , d(nullptr)
+#endif
     {
     }
     inline TransformationType inline_type() const;
@@ -202,7 +206,7 @@ private:
 };
 Q_DECLARE_TYPEINFO(QTransform, Q_MOVABLE_TYPE);
 
-Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QTransform &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QTransform &key, uint seed = 0) noexcept;
 
 /******* inlines *****/
 inline QTransform::TransformationType QTransform::inline_type() const
diff --git a/src/gui/painting/qvectorpath_p.h b/src/gui/painting/qvectorpath_p.h
index 1b649a5d2a..df5772d4cc 100644
--- a/src/gui/painting/qvectorpath_p.h
+++ b/src/gui/painting/qvectorpath_p.h
@@ -106,7 +106,7 @@ public:
     // ### Falcon: introduca a struct XY for points so lars is not so confused...
     QVectorPath(const qreal *points,
                 int count,
-                const QPainterPath::ElementType *elements = 0,
+                const QPainterPath::ElementType *elements = nullptr,
                 uint hints = ArbitraryShapeHint)
         : m_elements(elements),
           m_points(points),
@@ -128,12 +128,12 @@ public:
     inline bool hasExplicitOpen() const { return m_hints & ExplicitOpen; }
     inline bool hasWindingFill() const { return m_hints & WindingFill; }
 
-    inline void makeCacheable() const { m_hints |= ShouldUseCacheHint; m_cache = 0; }
+    inline void makeCacheable() const { m_hints |= ShouldUseCacheHint; m_cache = nullptr; }
     inline uint hints() const { return m_hints; }
 
     inline const QPainterPath::ElementType *elements() const { return m_elements; }
     inline const qreal *points() const { return m_points; }
-    inline bool isEmpty() const { return m_points == 0; }
+    inline bool isEmpty() const { return m_points == nullptr; }
 
     inline int elementCount() const { return m_count; }
     inline const QPainterPath convertToPainterPath() const;
@@ -165,7 +165,7 @@ public:
                 return e;
             e = e->next;
         }
-        return 0;
+        return nullptr;
     }
 
     template <typename T> static inline bool isRect(const T *pts, int elementCount) {
diff --git a/src/gui/text/qabstracttextdocumentlayout_p.h b/src/gui/text/qabstracttextdocumentlayout_p.h
index 191c463dc6..d631ce3197 100644
--- a/src/gui/text/qabstracttextdocumentlayout_p.h
+++ b/src/gui/text/qabstracttextdocumentlayout_p.h
@@ -59,7 +59,7 @@ QT_BEGIN_NAMESPACE
 
 struct QTextObjectHandler
 {
-    QTextObjectHandler() : iface(0) {}
+    QTextObjectHandler() : iface(nullptr) {}
     QTextObjectInterface *iface;
     QPointer<QObject> component;
 };
@@ -71,12 +71,12 @@ public:
     Q_DECLARE_PUBLIC(QAbstractTextDocumentLayout)
 
     inline QAbstractTextDocumentLayoutPrivate()
-        : paintDevice(0) {}
+        : paintDevice(nullptr) {}
     ~QAbstractTextDocumentLayoutPrivate();
 
     inline void setDocument(QTextDocument *doc) {
         document = doc;
-        docPrivate = 0;
+        docPrivate = nullptr;
         if (doc)
             docPrivate = doc->docHandle();
     }
diff --git a/src/gui/text/qcssparser_p.h b/src/gui/text/qcssparser_p.h
index 860bbe382a..62578f75e5 100644
--- a/src/gui/text/qcssparser_p.h
+++ b/src/gui/text/qcssparser_p.h
@@ -467,8 +467,8 @@ struct Q_GUI_EXPORT Declaration
     Attachment attachmentValue() const;
     int  styleFeaturesValue() const;
 
-    bool intValue(int *i, const char *unit = 0) const;
-    bool realValue(qreal *r, const char *unit = 0) const;
+    bool intValue(int *i, const char *unit = nullptr) const;
+    bool realValue(qreal *r, const char *unit = nullptr) const;
 
     QSize sizeValue() const;
     QRect rectValue() const;
@@ -584,7 +584,7 @@ struct Q_GUI_EXPORT Selector
 {
     QVector<BasicSelector> basicSelectors;
     int specificity() const;
-    quint64 pseudoClass(quint64 *negated = 0) const;
+    quint64 pseudoClass(quint64 *negated = nullptr) const;
     QString pseudoElement() const;
 };
 QT_CSS_DECLARE_TYPEINFO(Selector, Q_MOVABLE_TYPE)
@@ -656,7 +656,7 @@ public:
     };
 
     QVector<StyleRule> styleRulesForNode(NodePtr node);
-    QVector<Declaration> declarationsForNode(NodePtr node, const char *extraPseudo = 0);
+    QVector<Declaration> declarationsForNode(NodePtr node, const char *extraPseudo = nullptr);
 
     virtual bool nodeNameEquals(NodePtr node, const QString& nodeName) const;
     virtual QString attribute(NodePtr node, const QString &name) const = 0;
@@ -744,7 +744,7 @@ QT_CSS_DECLARE_TYPEINFO(Symbol, Q_MOVABLE_TYPE)
 class Q_GUI_EXPORT Scanner
 {
 public:
-    static QString preprocess(const QString &input, bool *hasEscapeSequences = 0);
+    static QString preprocess(const QString &input, bool *hasEscapeSequences = nullptr);
     static void scan(const QString &preprocessedInput, QVector<Symbol> *symbols);
 };
 
@@ -845,7 +845,7 @@ struct Q_GUI_EXPORT ValueExtractor
     bool extractGeometry(int *w, int *h, int *minw, int *minh, int *maxw, int *maxh);
     bool extractPosition(int *l, int *t, int *r, int *b, QCss::Origin *, Qt::Alignment *,
                          QCss::PositionMode *, Qt::Alignment *);
-    bool extractBox(int *margins, int *paddings, int *spacing = 0);
+    bool extractBox(int *margins, int *paddings, int *spacing = nullptr);
     bool extractBorder(int *borders, QBrush *colors, BorderStyle *Styles, QSize *radii);
     bool extractOutline(int *borders, QBrush *colors, BorderStyle *Styles, QSize *radii, int *offsets);
     bool extractPalette(QBrush *fg, QBrush *sfg, QBrush *sbg, QBrush *abg);
diff --git a/src/gui/text/qdistancefield_p.h b/src/gui/text/qdistancefield_p.h
index 31cdf7edd2..1a1b6866a2 100644
--- a/src/gui/text/qdistancefield_p.h
+++ b/src/gui/text/qdistancefield_p.h
@@ -72,7 +72,7 @@ int Q_GUI_EXPORT QT_DISTANCEFIELD_HIGHGLYPHCOUNT();
 class Q_GUI_EXPORT QDistanceFieldData : public QSharedData
 {
 public:
-    QDistanceFieldData() : glyph(0), width(0), height(0), nbytes(0), data(0) {}
+    QDistanceFieldData() : glyph(0), width(0), height(0), nbytes(0), data(nullptr) {}
     QDistanceFieldData(const QDistanceFieldData &other);
     ~QDistanceFieldData();
 
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index a51e98ce85..164a2f60ab 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -2083,7 +2083,7 @@ QString QFont::toString() const
     \relates QFont
     \since 5.3
 */
-uint qHash(const QFont &font, uint seed) Q_DECL_NOTHROW
+uint qHash(const QFont &font, uint seed) noexcept
 {
     return qHash(QFontPrivate::get(font)->request, seed);
 }
@@ -3164,7 +3164,104 @@ void QFontCache::decreaseCache()
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug stream, const QFont &font)
 {
-    return stream << "QFont(" << font.toString() << ')';
+    QDebugStateSaver saver(stream);
+    stream.nospace().noquote();
+    stream << "QFont(";
+
+    if (stream.verbosity() == QDebug::DefaultVerbosity) {
+        stream << font.toString() << ")";
+        return stream;
+    }
+
+    QString fontDescription;
+    QDebug debug(&fontDescription);
+    debug.nospace();
+
+    QFontPrivate priv;
+    const QFont defaultFont(&priv);
+
+    for (int property = QFont::FamilyResolved; property < QFont::AllPropertiesResolved; property <<= 1) {
+        const bool resolved = (font.resolve_mask & property) != 0;
+        if (!resolved && stream.verbosity() == QDebug::MinimumVerbosity)
+            continue;
+
+        #define QFONT_DEBUG_SKIP_DEFAULT(prop) \
+            if ((font.prop() == defaultFont.prop()) && stream.verbosity() == 1) \
+                continue;
+
+        QDebugStateSaver saver(debug);
+
+        switch (property) {
+        case QFont::FamilyResolved:
+            debug << font.family(); break;
+        case QFont::SizeResolved:
+            if (font.pointSizeF() >= 0)
+                debug << font.pointSizeF() << "pt";
+            else if (font.pixelSize() >= 0)
+                debug << font.pixelSize() << "px";
+            else
+                Q_UNREACHABLE();
+            break;
+        case QFont::StyleHintResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(styleHint);
+            debug.verbosity(1) << font.styleHint(); break;
+        case QFont::StyleStrategyResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(styleStrategy);
+            debug.verbosity(1) << font.styleStrategy(); break;
+        case QFont::WeightResolved:
+            debug.verbosity(1) << QFont::Weight(font.weight()); break;
+        case QFont::StyleResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(style);
+            debug.verbosity(0) << font.style(); break;
+        case QFont::UnderlineResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(underline);
+            debug << "underline=" << font.underline(); break;
+        case QFont::OverlineResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(overline);
+            debug << "overline=" << font.overline(); break;
+        case QFont::StrikeOutResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(strikeOut);
+            debug << "strikeOut=" << font.strikeOut(); break;
+        case QFont::FixedPitchResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(fixedPitch);
+            debug << "fixedPitch=" << font.fixedPitch(); break;
+        case QFont::StretchResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(stretch);
+            debug.verbosity(0) << QFont::Stretch(font.stretch()); break;
+        case QFont::KerningResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(kerning);
+            debug << "kerning=" << font.kerning(); break;
+        case QFont::CapitalizationResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(capitalization);
+            debug.verbosity(0) << font.capitalization(); break;
+        case QFont::LetterSpacingResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(letterSpacing);
+            debug << "letterSpacing=" << font.letterSpacing();
+            debug.verbosity(0) << " (" << font.letterSpacingType() << ")";
+            break;
+        case QFont::HintingPreferenceResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(hintingPreference);
+            debug.verbosity(0) << font.hintingPreference(); break;
+        case QFont::StyleNameResolved:
+            QFONT_DEBUG_SKIP_DEFAULT(styleName);
+            debug << "styleName=" << font.styleName(); break;
+        default:
+            continue;
+        };
+
+        #undef QFONT_DEBUG_SKIP_DEFAULT
+
+        debug << ", ";
+    }
+
+    if (stream.verbosity() > QDebug::MinimumVerbosity)
+        debug.verbosity(0) << "resolveMask=" << QFlags<QFont::ResolveProperties>(font.resolve_mask);
+    else
+        fontDescription.chop(2); // Last ', '
+
+    stream << fontDescription << ')';
+
+    return stream;
 }
 #endif
 
diff --git a/src/gui/text/qfont.h b/src/gui/text/qfont.h
index e86f06353a..683aa3bf65 100644
--- a/src/gui/text/qfont.h
+++ b/src/gui/text/qfont.h
@@ -147,6 +147,7 @@ public:
     Q_ENUM(SpacingType)
 
     enum ResolveProperties {
+        NoPropertiesResolved        = 0x0000,
         FamilyResolved              = 0x0001,
         SizeResolved                = 0x0002,
         StyleHintResolved           = 0x0004,
@@ -167,6 +168,7 @@ public:
         FamiliesResolved            = 0x20000,
         AllPropertiesResolved       = 0x3ffff
     };
+    Q_ENUM(ResolveProperties)
 
     QFont();
     QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false);
@@ -259,10 +261,8 @@ public:
     bool operator<(const QFont &) const;
     operator QVariant() const;
     bool isCopyOf(const QFont &) const;
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QFont &operator=(QFont &&other) Q_DECL_NOEXCEPT
+    inline QFont &operator=(QFont &&other) noexcept
     { qSwap(d, other.d); qSwap(resolve_mask, other.resolve_mask);  return *this; }
-#endif
 
 #if QT_DEPRECATED_SINCE(5, 3)
     // needed for X11
@@ -335,13 +335,17 @@ private:
     friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QFont &);
 #endif
 
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QFont &);
+#endif
+
     QExplicitlySharedDataPointer<QFontPrivate> d;
     uint resolve_mask;
 };
 
 Q_DECLARE_SHARED(QFont)
 
-Q_GUI_EXPORT uint qHash(const QFont &font, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT uint qHash(const QFont &font, uint seed = 0) noexcept;
 
 inline bool QFont::bold() const
 { return weight() > Medium; }
diff --git a/src/gui/text/qfont_p.h b/src/gui/text/qfont_p.h
index e86ec31e47..db74ab0b65 100644
--- a/src/gui/text/qfont_p.h
+++ b/src/gui/text/qfont_p.h
@@ -136,7 +136,7 @@ struct QFontDef
     }
 };
 
-inline uint qHash(const QFontDef &fd, uint seed = 0) Q_DECL_NOTHROW
+inline uint qHash(const QFontDef &fd, uint seed = 0) noexcept
 {
     return qHash(qRound64(fd.pixelSize*10000)) // use only 4 fractional digits
         ^  qHash(fd.weight)
@@ -266,7 +266,7 @@ public:
 
     // QFontEngine cache
     struct Engine {
-        Engine() : data(0), timestamp(0), hits(0) { }
+        Engine() : data(nullptr), timestamp(0), hits(0) { }
         Engine(QFontEngine *d) : data(d), timestamp(0), hits(0) { }
 
         QFontEngine *data;
diff --git a/src/gui/text/qfontdatabase.cpp b/src/gui/text/qfontdatabase.cpp
index 778214128e..82b9bb810a 100644
--- a/src/gui/text/qfontdatabase.cpp
+++ b/src/gui/text/qfontdatabase.cpp
@@ -422,7 +422,7 @@ struct FallbacksCacheKey {
     QChar::Script script;
 };
 
-inline bool operator==(const FallbacksCacheKey &lhs, const FallbacksCacheKey &rhs) Q_DECL_NOTHROW
+inline bool operator==(const FallbacksCacheKey &lhs, const FallbacksCacheKey &rhs) noexcept
 {
     return lhs.script == rhs.script &&
             lhs.styleHint == rhs.styleHint &&
@@ -430,12 +430,12 @@ inline bool operator==(const FallbacksCacheKey &lhs, const FallbacksCacheKey &rh
             lhs.family == rhs.family;
 }
 
-inline bool operator!=(const FallbacksCacheKey &lhs, const FallbacksCacheKey &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const FallbacksCacheKey &lhs, const FallbacksCacheKey &rhs) noexcept
 {
     return !operator==(lhs, rhs);
 }
 
-inline uint qHash(const FallbacksCacheKey &key, uint seed = 0) Q_DECL_NOTHROW
+inline uint qHash(const FallbacksCacheKey &key, uint seed = 0) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.family);
diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
index 1719855e68..99c9e1bfdc 100644
--- a/src/gui/text/qfontengine.cpp
+++ b/src/gui/text/qfontengine.cpp
@@ -1213,7 +1213,7 @@ void QFontEngine::loadKerningPairs(QFixed scalingFactor)
 end:
     std::sort(kerning_pairs.begin(), kerning_pairs.end());
 //    for (int i = 0; i < kerning_pairs.count(); ++i)
-//        qDebug() << 'i' << i << "left_right" << hex << kerning_pairs.at(i).left_right;
+//        qDebug() << 'i' << i << "left_right" << Qt::hex << kerning_pairs.at(i).left_right;
 }
 
 
diff --git a/src/gui/text/qfontengine_p.h b/src/gui/text/qfontengine_p.h
index 708c79c2ae..b922d50b4c 100644
--- a/src/gui/text/qfontengine_p.h
+++ b/src/gui/text/qfontengine_p.h
@@ -194,7 +194,7 @@ public:
     virtual QImage *lockedAlphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition,
                                            GlyphFormat neededFormat,
                                            const QTransform &t = QTransform(),
-                                           QPoint *offset = 0);
+                                           QPoint *offset = nullptr);
     virtual void unlockAlphaMapForGlyph();
     virtual bool hasInternalCaching() const { return false; }
 
@@ -224,7 +224,7 @@ public:
     virtual qreal minLeftBearing() const;
     virtual qreal minRightBearing() const;
 
-    virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0);
+    virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = nullptr, qreal *rightBearing = nullptr);
 
     inline bool canRender(uint ucs4) const { return glyphIndex(ucs4) != 0; }
     virtual bool canRender(const QChar *str, int len) const;
@@ -234,7 +234,7 @@ public:
     virtual int glyphCount() const;
     virtual int glyphMargin(GlyphFormat format) { return format == Format_A32 ? 2 : 0; }
 
-    virtual QFontEngine *cloneWithSize(qreal /*pixelSize*/) const { return 0; }
+    virtual QFontEngine *cloneWithSize(qreal /*pixelSize*/) const { return nullptr; }
 
     virtual Qt::HANDLE handle() const;
 
@@ -292,33 +292,33 @@ public:
         Holder() : ptr(nullptr), destroy_func(nullptr) {}
         explicit Holder(void *p, qt_destroy_func_t d) : ptr(p), destroy_func(d) {}
         ~Holder() { if (ptr && destroy_func) destroy_func(ptr); }
-        Holder(Holder &&other) Q_DECL_NOTHROW
+        Holder(Holder &&other) noexcept
             : ptr(other.ptr),
               destroy_func(other.destroy_func)
         {
             other.ptr = nullptr;
             other.destroy_func = nullptr;
         }
-        Holder &operator=(Holder &&other) Q_DECL_NOTHROW
+        Holder &operator=(Holder &&other) noexcept
         { swap(other); return *this; }
 
-        void swap(Holder &other) Q_DECL_NOTHROW
+        void swap(Holder &other) noexcept
         {
             qSwap(ptr, other.ptr);
             qSwap(destroy_func, other.destroy_func);
         }
 
-        void *get() const Q_DECL_NOTHROW { return ptr; }
-        void *release() Q_DECL_NOTHROW {
+        void *get() const noexcept { return ptr; }
+        void *release() noexcept {
             void *result = ptr;
             ptr = nullptr;
             destroy_func = nullptr;
             return result;
         }
-        void reset() Q_DECL_NOTHROW { Holder().swap(*this); }
-        qt_destroy_func_t get_deleter() const Q_DECL_NOTHROW { return destroy_func; }
+        void reset() noexcept { Holder().swap(*this); }
+        qt_destroy_func_t get_deleter() const noexcept { return destroy_func; }
 
-        bool operator!() const Q_DECL_NOTHROW { return !ptr; }
+        bool operator!() const noexcept { return !ptr; }
     };
 
     mutable Holder font_; // \ NOTE: Declared before m_glyphCaches, so font_, face_
@@ -390,7 +390,7 @@ inline bool operator ==(const QFontEngine::FaceId &f1, const QFontEngine::FaceId
 }
 
 inline uint qHash(const QFontEngine::FaceId &f, uint seed = 0)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(f.filename)))
+    noexcept(noexcept(qHash(f.filename)))
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, f.filename);
@@ -458,7 +458,7 @@ public:
     virtual void recalcAdvances(QGlyphLayout *, ShaperFlags) const override;
     virtual void doKerning(QGlyphLayout *, ShaperFlags) const override;
     virtual void addOutlineToPath(qreal, qreal, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags flags) override;
-    virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) override;
+    virtual void getGlyphBearings(glyph_t glyph, qreal *leftBearing = nullptr, qreal *rightBearing = nullptr) override;
 
     virtual QFixed ascent() const override;
     virtual QFixed capHeight() const override;
diff --git a/src/gui/text/qfontengine_qpf2.cpp b/src/gui/text/qfontengine_qpf2.cpp
index 110d512d39..409176d41b 100644
--- a/src/gui/text/qfontengine_qpf2.cpp
+++ b/src/gui/text/qfontengine_qpf2.cpp
@@ -140,9 +140,9 @@ static inline const uchar *verifyTag(const uchar *tagPtr, const uchar *endPtr)
         }
 #if defined(DEBUG_HEADER)
         if (length == 1)
-            qDebug() << "tag data" << hex << *tagPtr;
+            qDebug() << "tag data" << Qt::hex << *tagPtr;
         else if (length == 4)
-            qDebug() << "tag data" << hex << tagPtr[0] << tagPtr[1] << tagPtr[2] << tagPtr[3];
+            qDebug() << "tag data" << Qt::hex << tagPtr[0] << tagPtr[1] << tagPtr[2] << tagPtr[3];
 #endif
     }
     return tagPtr + length;
@@ -367,7 +367,7 @@ bool QFontEngineQPF2::stringToCMap(const QChar *str, int len, QGlyphLayout *glyp
 #if 0 && defined(DEBUG_FONTENGINE)
             QChar c(uc);
             if (!findGlyph(glyphs[glyph_pos].glyph) && !seenGlyphs.contains(c))
-                qDebug() << "glyph for character" << c << '/' << hex << uc << "is" << dec << glyphs[glyph_pos].glyph;
+                qDebug() << "glyph for character" << c << '/' << Qt::hex << uc << "is" << Qt::dec << glyphs[glyph_pos].glyph;
 
             seenGlyphs.insert(c);
 #endif
diff --git a/src/gui/text/qfontmetrics.h b/src/gui/text/qfontmetrics.h
index 61931fa9bc..a92ee9ed2f 100644
--- a/src/gui/text/qfontmetrics.h
+++ b/src/gui/text/qfontmetrics.h
@@ -76,12 +76,10 @@ public:
     ~QFontMetrics();
 
     QFontMetrics &operator=(const QFontMetrics &);
-#ifdef Q_COMPILER_RVALUE_REFS
-    inline QFontMetrics &operator=(QFontMetrics &&other) Q_DECL_NOEXCEPT
+    inline QFontMetrics &operator=(QFontMetrics &&other) noexcept
     { qSwap(d, other.d); return *this; }
-#endif
 
-    void swap(QFontMetrics &other) Q_DECL_NOEXCEPT
+    void swap(QFontMetrics &other) noexcept
     { qSwap(d, other.d); }
 
     int ascent() const;
@@ -172,10 +170,8 @@ public:
 
     QFontMetricsF &operator=(const QFontMetricsF &);
     QFontMetricsF &operator=(const QFontMetrics &);
-#ifdef Q_COMPILER_RVALUE_REFS
     inline QFontMetricsF &operator=(QFontMetricsF &&other)
     { qSwap(d, other.d); return *this; }
-#endif
 
     void swap(QFontMetricsF &other) { qSwap(d, other.d); }
 
diff --git a/src/gui/text/qfragmentmap_p.h b/src/gui/text/qfragmentmap_p.h
index 35f60ac961..1d781352f8 100644
--- a/src/gui/text/qfragmentmap_p.h
+++ b/src/gui/text/qfragmentmap_p.h
@@ -216,7 +216,7 @@ private:
 
 template <class Fragment>
 QFragmentMapData<Fragment>::QFragmentMapData()
-    : fragments(0)
+    : fragments(nullptr)
 {
     init();
 }
diff --git a/src/gui/text/qglyphrun.h b/src/gui/text/qglyphrun.h
index 6182c4f749..15e315bea2 100644
--- a/src/gui/text/qglyphrun.h
+++ b/src/gui/text/qglyphrun.h
@@ -66,13 +66,11 @@ public:
 
     QGlyphRun();
     QGlyphRun(const QGlyphRun &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QGlyphRun &operator=(QGlyphRun &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QGlyphRun &operator=(QGlyphRun &&other) noexcept { swap(other); return *this; }
     QGlyphRun &operator=(const QGlyphRun &other);
     ~QGlyphRun();
 
-    void swap(QGlyphRun &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QGlyphRun &other) noexcept { qSwap(d, other.d); }
 
     QRawFont rawFont() const;
     void setRawFont(const QRawFont &rawFont);
diff --git a/src/gui/text/qglyphrun_p.h b/src/gui/text/qglyphrun_p.h
index 5b6bdad648..465c3c7000 100644
--- a/src/gui/text/qglyphrun_p.h
+++ b/src/gui/text/qglyphrun_p.h
@@ -65,7 +65,7 @@ class QGlyphRunPrivate: public QSharedData
 {
 public:
     QGlyphRunPrivate()
-        : flags(0)
+        : flags(nullptr)
         , glyphIndexData(glyphIndexes.constData())
         , glyphIndexDataSize(0)
         , glyphPositionData(glyphPositions.constData())
diff --git a/src/gui/text/qrawfont.cpp b/src/gui/text/qrawfont.cpp
index b2d8bf01af..a060448924 100644
--- a/src/gui/text/qrawfont.cpp
+++ b/src/gui/text/qrawfont.cpp
@@ -322,7 +322,7 @@ bool QRawFont::operator==(const QRawFont &other) const
     \relates QRawFont
     \since 5.8
 */
-uint qHash(const QRawFont &font, uint seed) Q_DECL_NOTHROW
+uint qHash(const QRawFont &font, uint seed) noexcept
 {
     return qHash(QRawFontPrivate::get(font)->fontEngine, seed);
 }
diff --git a/src/gui/text/qrawfont.h b/src/gui/text/qrawfont.h
index 470f2694e4..c6289d6c93 100644
--- a/src/gui/text/qrawfont.h
+++ b/src/gui/text/qrawfont.h
@@ -79,13 +79,11 @@ public:
              qreal pixelSize,
              QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);
     QRawFont(const QRawFont &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QRawFont &operator=(QRawFont &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QRawFont &operator=(QRawFont &&other) noexcept { swap(other); return *this; }
     QRawFont &operator=(const QRawFont &other);
     ~QRawFont();
 
-    void swap(QRawFont &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QRawFont &other) noexcept { qSwap(d, other.d); }
 
     bool isValid() const;
 
@@ -158,7 +156,7 @@ Q_DECLARE_SHARED(QRawFont)
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QRawFont::LayoutFlags)
 
-Q_GUI_EXPORT uint qHash(const QRawFont &font, uint seed = 0) Q_DECL_NOTHROW;
+Q_GUI_EXPORT uint qHash(const QRawFont &font, uint seed = 0) noexcept;
 
 inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes, QRawFont::LayoutFlags layoutFlags) const
 {
diff --git a/src/gui/text/qrawfont_p.h b/src/gui/text/qrawfont_p.h
index 0fc8739bfb..dced165475 100644
--- a/src/gui/text/qrawfont_p.h
+++ b/src/gui/text/qrawfont_p.h
@@ -67,9 +67,9 @@ class Q_GUI_EXPORT QRawFontPrivate
 {
 public:
     QRawFontPrivate()
-        : fontEngine(0)
+        : fontEngine(nullptr)
         , hintingPreference(QFont::PreferDefaultHinting)
-        , thread(0)
+        , thread(nullptr)
     {}
 
     QRawFontPrivate(const QRawFontPrivate &other)
@@ -78,9 +78,9 @@ public:
         , thread(other.thread)
     {
 #ifndef QT_NO_DEBUG
-        Q_ASSERT(fontEngine == 0 || thread == QThread::currentThread());
+        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());
 #endif
-        if (fontEngine != 0)
+        if (fontEngine != nullptr)
             fontEngine->ref.ref();
     }
 
@@ -94,37 +94,37 @@ public:
 
     inline void cleanUp()
     {
-        setFontEngine(0);
+        setFontEngine(nullptr);
         hintingPreference = QFont::PreferDefaultHinting;
     }
 
     inline bool isValid() const
     {
 #ifndef QT_NO_DEBUG
-        Q_ASSERT(fontEngine == 0 || thread == QThread::currentThread());
+        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());
 #endif
-        return fontEngine != 0;
+        return fontEngine != nullptr;
     }
 
     inline void setFontEngine(QFontEngine *engine)
     {
 #ifndef QT_NO_DEBUG
-        Q_ASSERT(fontEngine == 0 || thread == QThread::currentThread());
+        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());
 #endif
         if (fontEngine == engine)
             return;
 
-        if (fontEngine != 0) {
+        if (fontEngine != nullptr) {
             if (!fontEngine->ref.deref())
                 delete fontEngine;
 #ifndef QT_NO_DEBUG
-            thread = 0;
+            thread = nullptr;
 #endif
         }
 
         fontEngine = engine;
 
-        if (fontEngine != 0) {
+        if (fontEngine != nullptr) {
             fontEngine->ref.ref();
 #ifndef QT_NO_DEBUG
             thread = QThread::currentThread();
diff --git a/src/gui/text/qstatictext.h b/src/gui/text/qstatictext.h
index ada0456b8f..e8c94a6add 100644
--- a/src/gui/text/qstatictext.h
+++ b/src/gui/text/qstatictext.h
@@ -64,13 +64,11 @@ public:
     QStaticText();
     explicit QStaticText(const QString &text);
     QStaticText(const QStaticText &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QStaticText &operator=(QStaticText &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QStaticText &operator=(QStaticText &&other) noexcept { swap(other); return *this; }
     QStaticText &operator=(const QStaticText &);
     ~QStaticText();
 
-    void swap(QStaticText &other) Q_DECL_NOTHROW { qSwap(data, other.data); }
+    void swap(QStaticText &other) noexcept { qSwap(data, other.data); }
 
     void setText(const QString &text);
     QString text() const;
diff --git a/src/gui/text/qstatictext_p.h b/src/gui/text/qstatictext_p.h
index 4ec09297c5..8d6792216d 100644
--- a/src/gui/text/qstatictext_p.h
+++ b/src/gui/text/qstatictext_p.h
@@ -80,7 +80,7 @@ class Q_GUI_EXPORT QStaticTextItem
 public:
     QStaticTextItem() : useBackendOptimizations(false),
                         userDataNeedsUpdate(0), usesRawFont(0),
-                        m_fontEngine(0), m_userData(0) {}
+                        m_fontEngine(nullptr), m_userData(nullptr) {}
 
     void setUserData(QStaticTextUserData *newUserData)
     {
diff --git a/src/gui/text/qsyntaxhighlighter.cpp b/src/gui/text/qsyntaxhighlighter.cpp
index 102a776ed3..cf584f6980 100644
--- a/src/gui/text/qsyntaxhighlighter.cpp
+++ b/src/gui/text/qsyntaxhighlighter.cpp
@@ -45,6 +45,7 @@
 #include <private/qtextdocument_p.h>
 #include <qtextlayout.h>
 #include <qpointer.h>
+#include <qscopedvaluerollback.h>
 #include <qtextobject.h>
 #include <qtextcursor.h>
 #include <qdebug.h>
@@ -68,14 +69,14 @@ public:
     void reformatBlocks(int from, int charsRemoved, int charsAdded);
     void reformatBlock(const QTextBlock &block);
 
-    inline void rehighlight(QTextCursor &cursor, QTextCursor::MoveOperation operation) {
-        inReformatBlocks = true;
+    inline void rehighlight(QTextCursor &cursor, QTextCursor::MoveOperation operation)
+    {
+        QScopedValueRollback<bool> bg(inReformatBlocks, true);
         cursor.beginEditBlock();
         int from = cursor.position();
         cursor.movePosition(operation);
         reformatBlocks(from, 0, cursor.position() - from);
         cursor.endEditBlock();
-        inReformatBlocks = false;
     }
 
     inline void _q_delayedRehighlight() {
diff --git a/src/gui/text/qtextcursor.h b/src/gui/text/qtextcursor.h
index 1a00b753ad..7cad3cc5e8 100644
--- a/src/gui/text/qtextcursor.h
+++ b/src/gui/text/qtextcursor.h
@@ -73,13 +73,11 @@ public:
     explicit QTextCursor(QTextFrame *frame);
     explicit QTextCursor(const QTextBlock &block);
     QTextCursor(const QTextCursor &cursor);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QTextCursor &operator=(QTextCursor &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QTextCursor &operator=(QTextCursor &&other) noexcept { swap(other); return *this; }
     QTextCursor &operator=(const QTextCursor &other);
     ~QTextCursor();
 
-    void swap(QTextCursor &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QTextCursor &other) noexcept { qSwap(d, other.d); }
 
     bool isNull() const;
 
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp
index fd3473b32e..b5ff72e706 100644
--- a/src/gui/text/qtextdocument.cpp
+++ b/src/gui/text/qtextdocument.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -70,6 +70,12 @@
 #include <private/qabstracttextdocumentlayout_p.h>
 #include "qpagedpaintdevice.h"
 #include "private/qpagedpaintdevice_p.h"
+#if QT_CONFIG(textmarkdownreader)
+#include <private/qtextmarkdownimporter_p.h>
+#endif
+#if QT_CONFIG(textmarkdownwriter)
+#include <private/qtextmarkdownwriter_p.h>
+#endif
 
 #include <limits.h>
 
@@ -3286,6 +3292,58 @@ QString QTextDocument::toHtml(const QByteArray &encoding) const
 #endif // QT_NO_TEXTHTMLPARSER
 
 /*!
+    Returns a string containing a Markdown representation of the document,
+    or an empty string if writing fails for any reason.
+*/
+#if QT_CONFIG(textmarkdownwriter)
+QString QTextDocument::toMarkdown(QTextDocument::MarkdownFeatures features) const
+{
+    QString ret;
+    QTextStream s(&ret);
+    QTextMarkdownWriter w(s, features);
+    if (w.writeAll(this))
+        return ret;
+    return QString();
+}
+#endif
+
+/*!
+    Replaces the entire contents of the document with the given
+    Markdown-formatted text in the \a markdown string, with the given
+    \a features supported.  By default, all supported GitHub-style
+    Markdown features are included; pass \c MarkdownDialectCommonMark
+    for a more basic parse.
+
+    The Markdown formatting is respected as much as possible; for example,
+    "*bold* text" will produce text where the first word has a font weight that
+    gives it an emphasized appearance.
+
+    Parsing of HTML included in the \a markdown string is handled in the same
+    way as in \l setHtml; however, Markdown formatting inside HTML blocks is
+    not supported.
+
+    Some features of the parser can be enabled or disabled via the \a features
+    argument:
+
+    \value MarkdownNoHTML
+           Any HTML tags in the Markdown text will be discarded
+    \value MarkdownDialectCommonMark
+           The parser supports only the features standardized by CommonMark
+    \value MarkdownDialectGitHub
+           The parser supports the GitHub dialect
+
+    The default is \c MarkdownDialectGitHub.
+
+    The undo/redo history is reset when this function is called.
+*/
+#if QT_CONFIG(textmarkdownreader)
+void QTextDocument::setMarkdown(const QString &markdown, QTextDocument::MarkdownFeatures features)
+{
+    QTextMarkdownImporter(static_cast<QTextMarkdownImporter::Features>(int(features))).import(this, markdown);
+}
+#endif
+
+/*!
     Returns a vector of text formats for all the formats used in the document.
 */
 QVector<QTextFormat> QTextDocument::allFormats() const
diff --git a/src/gui/text/qtextdocument.h b/src/gui/text/qtextdocument.h
index c9b22e053b..31c06976a5 100644
--- a/src/gui/text/qtextdocument.h
+++ b/src/gui/text/qtextdocument.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -151,6 +151,25 @@ public:
     void setHtml(const QString &html);
 #endif
 
+#if QT_CONFIG(textmarkdownwriter) || QT_CONFIG(textmarkdownreader)
+    // Must be in sync with QTextMarkdownImporter::Features, should be in sync with #define MD_FLAG_* in md4c
+    enum MarkdownFeature {
+        MarkdownNoHTML = 0x0020 | 0x0040,
+        MarkdownDialectCommonMark = 0,
+        MarkdownDialectGitHub = 0x0004 | 0x0008 | 0x0400 | 0x0100 | 0x0200 | 0x0800
+    };
+    Q_DECLARE_FLAGS(MarkdownFeatures, MarkdownFeature)
+    Q_FLAG(MarkdownFeatures)
+#endif
+
+#if QT_CONFIG(textmarkdownwriter)
+    QString toMarkdown(MarkdownFeatures features = MarkdownDialectGitHub) const;
+#endif
+
+#if QT_CONFIG(textmarkdownreader)
+    void setMarkdown(const QString &markdown, MarkdownFeatures features = MarkdownDialectGitHub);
+#endif
+
     QString toRawText() const;
     QString toPlainText() const;
     void setPlainText(const QString &text);
diff --git a/src/gui/text/qtextdocument_p.cpp b/src/gui/text/qtextdocument_p.cpp
index c0a0c1a177..0e3c8d0e83 100644
--- a/src/gui/text/qtextdocument_p.cpp
+++ b/src/gui/text/qtextdocument_p.cpp
@@ -40,6 +40,7 @@
 #include <private/qtools_p.h>
 #include <qdebug.h>
 
+#include <qscopedvaluerollback.h>
 #include "qtextdocument_p.h"
 #include "qtextdocument.h"
 #include <qtextformat.h>
@@ -274,9 +275,10 @@ void QTextDocumentPrivate::clear()
         rtFrame = 0;
         init();
         cursors = oldCursors;
-        inContentsChange = true;
-        emit q->contentsChange(0, len, 0);
-        inContentsChange = false;
+        {
+            QScopedValueRollback<bool> bg(inContentsChange, true);
+            emit q->contentsChange(0, len, 0);
+        }
         if (lout)
             lout->documentChanged(0, len, 0);
     } QT_CATCH(...) {
@@ -309,9 +311,10 @@ void QTextDocumentPrivate::setLayout(QAbstractTextDocumentLayout *layout)
             it->free();
 
     emit q->documentLayoutChanged();
-    inContentsChange = true;
-    emit q->contentsChange(0, 0, length());
-    inContentsChange = false;
+    {
+        QScopedValueRollback<bool> bg(inContentsChange, true);
+        emit q->contentsChange(0, 0, length());
+    }
     if (lout)
         lout->documentChanged(0, 0, length());
 }
@@ -1213,9 +1216,8 @@ void QTextDocumentPrivate::finishEdit()
 
     if (lout && docChangeFrom >= 0) {
         if (!inContentsChange) {
-            inContentsChange = true;
+            QScopedValueRollback<bool> bg(inContentsChange, true);
             emit q->contentsChange(docChangeFrom, docChangeOldLength, docChangeLength);
-            inContentsChange = false;
         }
         lout->documentChanged(docChangeFrom, docChangeOldLength, docChangeLength);
     }
diff --git a/src/gui/text/qtextdocument_p.h b/src/gui/text/qtextdocument_p.h
index cad9131fbf..a8e17bfc08 100644
--- a/src/gui/text/qtextdocument_p.h
+++ b/src/gui/text/qtextdocument_p.h
@@ -101,10 +101,10 @@ class QTextBlockData : public QFragment<3>
 {
 public:
     inline void initialize()
-        { layout = 0; userData = 0; userState = -1; revision = 0; hidden = 0; }
+        { layout = nullptr; userData = nullptr; userState = -1; revision = 0; hidden = 0; }
     void invalidate() const;
     inline void free()
-    { delete layout; layout = 0; delete userData; userData = 0; }
+    { delete layout; layout = nullptr; delete userData; userData = nullptr; }
 
     mutable int format;
     // ##### probably store a QTextEngine * here!
@@ -339,6 +339,7 @@ private:
     int lastBlockCount;
 
 public:
+    bool inContentsChange;
     QTextOption defaultTextOption;
     Qt::CursorMoveStyle defaultCursorMoveStyle;
 #ifndef QT_NO_CSSPARSER
@@ -346,7 +347,6 @@ public:
 #endif
     int maximumBlockCount;
     uint needsEnsureMaximumBlockCount : 1;
-    uint inContentsChange : 1;
     uint blockCursorAdjustment : 1;
     QSizeF pageSize;
     QString title;
diff --git a/src/gui/text/qtextdocumentfragment_p.h b/src/gui/text/qtextdocumentfragment_p.h
index de01a02fbb..67b0c2c600 100644
--- a/src/gui/text/qtextdocumentfragment_p.h
+++ b/src/gui/text/qtextdocumentfragment_p.h
@@ -125,7 +125,7 @@ public:
 
     QTextHtmlImporter(QTextDocument *_doc, const QString &html,
                       ImportMode mode,
-                      const QTextDocument *resourceProvider = 0);
+                      const QTextDocument *resourceProvider = nullptr);
 
     void import();
 
@@ -163,7 +163,7 @@ private:
 #endif
     struct TableCellIterator
     {
-        inline TableCellIterator(QTextTable *t = 0) : table(t), row(0), column(0) {}
+        inline TableCellIterator(QTextTable *t = nullptr) : table(t), row(0), column(0) {}
 
         inline TableCellIterator &operator++() {
             if (atEnd())
@@ -182,7 +182,7 @@ private:
             return *this;
         }
 
-        inline bool atEnd() const { return table == 0 || row >= table->rows(); }
+        inline bool atEnd() const { return table == nullptr || row >= table->rows(); }
 
         QTextTableCell cell() const { return table->cellAt(row, column); }
 
diff --git a/src/gui/text/qtextdocumentlayout.cpp b/src/gui/text/qtextdocumentlayout.cpp
index bed0a2c450..7873faf2cb 100644
--- a/src/gui/text/qtextdocumentlayout.cpp
+++ b/src/gui/text/qtextdocumentlayout.cpp
@@ -1436,6 +1436,21 @@ void QTextDocumentLayoutPrivate::drawListItem(const QPointF &offset, QPainter *p
 
     QBrush brush = context.palette.brush(QPalette::Text);
 
+    bool marker = bl.blockFormat().marker() != QTextBlockFormat::NoMarker;
+    if (marker) {
+        int adj = fontMetrics.lineSpacing() / 6;
+        r.adjust(-adj, 0, -adj, 0);
+        if (bl.blockFormat().marker() == QTextBlockFormat::Checked) {
+            // ### Qt6: render with QStyle / PE_IndicatorCheckBox. We don't currently
+            // have access to that here, because it would be a widget dependency.
+            painter->setPen(QPen(painter->pen().color(), 2));
+            painter->drawLine(r.topLeft(), r.bottomRight());
+            painter->drawLine(r.topRight(), r.bottomLeft());
+            painter->setPen(QPen(painter->pen().color(), 0));
+        }
+        painter->drawRect(r.adjusted(-adj, -adj, adj, adj));
+    }
+
     switch (style) {
     case QTextListFormat::ListDecimal:
     case QTextListFormat::ListLowerAlpha:
@@ -1456,16 +1471,21 @@ void QTextDocumentLayoutPrivate::drawListItem(const QPointF &offset, QPainter *p
         break;
     }
     case QTextListFormat::ListSquare:
-        painter->fillRect(r, brush);
+        if (!marker)
+            painter->fillRect(r, brush);
         break;
     case QTextListFormat::ListCircle:
-        painter->setPen(QPen(brush, 0));
-        painter->drawEllipse(r.translated(0.5, 0.5)); // pixel align for sharper rendering
+        if (!marker) {
+            painter->setPen(QPen(brush, 0));
+            painter->drawEllipse(r.translated(0.5, 0.5)); // pixel align for sharper rendering
+        }
         break;
     case QTextListFormat::ListDisc:
-        painter->setBrush(brush);
-        painter->setPen(Qt::NoPen);
-        painter->drawEllipse(r);
+        if (!marker) {
+            painter->setBrush(brush);
+            painter->setPen(Qt::NoPen);
+            painter->drawEllipse(r);
+        }
         break;
     case QTextListFormat::ListStyleUndefined:
         break;
diff --git a/src/gui/text/qtextdocumentwriter.cpp b/src/gui/text/qtextdocumentwriter.cpp
index 42e623153a..193d2c0dd3 100644
--- a/src/gui/text/qtextdocumentwriter.cpp
+++ b/src/gui/text/qtextdocumentwriter.cpp
@@ -51,6 +51,9 @@
 
 #include "qtextdocumentfragment_p.h"
 #include "qtextodfwriter_p.h"
+#if QT_CONFIG(textmarkdownwriter)
+#include "qtextmarkdownwriter_p.h"
+#endif
 
 #include <algorithm>
 
@@ -267,6 +270,18 @@ bool QTextDocumentWriter::write(const QTextDocument *document)
     }
 #endif // QT_NO_TEXTODFWRITER
 
+#if QT_CONFIG(textmarkdownwriter)
+    if (format == "md" || format == "mkd" || format == "markdown") {
+        if (!d->device->isWritable() && !d->device->open(QIODevice::WriteOnly)) {
+            qWarning("QTextDocumentWriter::write: the device can not be opened for writing");
+            return false;
+        }
+        QTextStream s(d->device);
+        QTextMarkdownWriter writer(s, QTextDocument::MarkdownDialectGitHub);
+        return writer.writeAll(document);
+    }
+#endif // textmarkdownwriter
+
 #ifndef QT_NO_TEXTHTMLPARSER
     if (format == "html" || format == "htm") {
         if (!d->device->isWritable() && ! d->device->open(QIODevice::WriteOnly)) {
@@ -348,6 +363,7 @@ QTextCodec *QTextDocumentWriter::codec() const
     \header \li Format    \li Description
     \row    \li plaintext \li Plain text
     \row    \li HTML      \li HyperText Markup Language
+    \row    \li markdown  \li Markdown (CommonMark or GitHub dialects)
     \row    \li ODF       \li OpenDocument Format
     \endtable
 
@@ -364,6 +380,9 @@ QList<QByteArray> QTextDocumentWriter::supportedDocumentFormats()
 #ifndef QT_NO_TEXTODFWRITER
     answer << "ODF";
 #endif // QT_NO_TEXTODFWRITER
+#if QT_CONFIG(textmarkdownwriter)
+    answer << "markdown";
+#endif
 
     std::sort(answer.begin(), answer.end());
     return answer;
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index 2da13289bf..c267ade0c2 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -990,7 +990,7 @@ struct QBidiAlgorithm {
             BIDI_DEBUG() << "before implicit level processing:";
             IsolatedRunSequenceIterator it(runs, i);
             while (!it.atEnd()) {
-                BIDI_DEBUG() << "    " << *it << hex << text[*it].unicode() << analysis[*it].bidiDirection;
+                BIDI_DEBUG() << "    " << *it << Qt::hex << text[*it].unicode() << analysis[*it].bidiDirection;
                 ++it;
             }
         }
@@ -1003,7 +1003,7 @@ struct QBidiAlgorithm {
             BIDI_DEBUG() << "after W4/W5";
             IsolatedRunSequenceIterator it(runs, i);
             while (!it.atEnd()) {
-                BIDI_DEBUG() << "    " << *it << hex << text[*it].unicode() << analysis[*it].bidiDirection;
+                BIDI_DEBUG() << "    " << *it << Qt::hex << text[*it].unicode() << analysis[*it].bidiDirection;
                 ++it;
             }
         }
@@ -1089,7 +1089,7 @@ struct QBidiAlgorithm {
         if (BidiDebugEnabled) {
             BIDI_DEBUG() << ">>>> start bidi, text length" << length;
             for (int i = 0; i < length; ++i)
-                BIDI_DEBUG() << hex << "    (" << i << ")" << text[i].unicode() << text[i].direction();
+                BIDI_DEBUG() << Qt::hex << "    (" << i << ")" << text[i].unicode() << text[i].direction();
         }
 
         {
@@ -1158,7 +1158,7 @@ struct QBidiAlgorithm {
         if (BidiDebugEnabled) {
             BIDI_DEBUG() << "final resolved levels:";
             for (int i = 0; i < length; ++i)
-                BIDI_DEBUG() << "    " << i << hex << text[i].unicode() << dec << (int)analysis[i].bidiLevel;
+                BIDI_DEBUG() << "    " << i << Qt::hex << text[i].unicode() << Qt::dec << (int)analysis[i].bidiLevel;
         }
 
         return true;
@@ -1969,7 +1969,9 @@ const QCharAttributes *QTextEngine::attributes() const
     QUnicodeTools::initCharAttributes(reinterpret_cast<const ushort *>(layoutData->string.constData()),
                                       layoutData->string.length(),
                                       scriptItems.data(), scriptItems.size(),
-                                      (QCharAttributes *)layoutData->memory);
+                                      (QCharAttributes *)layoutData->memory,
+                                      QUnicodeTools::CharAttributeOptions(QUnicodeTools::DefaultOptionsCompat
+                                                                          | QUnicodeTools::HangulLineBreakTailoring));
 
 
     layoutData->haveCharAttributes = true;
diff --git a/src/gui/text/qtextengine_p.h b/src/gui/text/qtextengine_p.h
index e9187ea605..fddda7f2f8 100644
--- a/src/gui/text/qtextengine_p.h
+++ b/src/gui/text/qtextengine_p.h
@@ -304,8 +304,8 @@ class QTextItemInt : public QTextItem
 {
 public:
     inline QTextItemInt()
-        : justified(false), underlineStyle(QTextCharFormat::NoUnderline), num_chars(0), chars(0),
-          logClusters(0), f(0), fontEngine(0)
+        : justified(false), underlineStyle(QTextCharFormat::NoUnderline), num_chars(0), chars(nullptr),
+          logClusters(nullptr), f(nullptr), fontEngine(nullptr)
     {}
     QTextItemInt(const QScriptItem &si, QFont *font, const QTextCharFormat &format = QTextCharFormat());
     QTextItemInt(const QGlyphLayout &g, QFont *font, const QChar *chars, int numChars, QFontEngine *fe,
@@ -335,7 +335,7 @@ public:
 
 struct QScriptItem
 {
-    Q_DECL_CONSTEXPR QScriptItem(int p, QScriptAnalysis a) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QScriptItem(int p, QScriptAnalysis a) noexcept
         : position(p), analysis(a),
           num_glyphs(0), descent(-1), ascent(-1), leading(-1), width(-1),
           glyph_data_offset(0) {}
@@ -348,7 +348,7 @@ struct QScriptItem
     QFixed leading;
     QFixed width;
     int glyph_data_offset;
-    Q_DECL_CONSTEXPR QFixed height() const Q_DECL_NOTHROW { return ascent + descent; }
+    Q_DECL_CONSTEXPR QFixed height() const noexcept { return ascent + descent; }
 private:
     friend class QVector<QScriptItem>;
     QScriptItem() {}; // for QVector, don't use
@@ -484,7 +484,7 @@ public:
         return end - si->position;
     }
 
-    QFontEngine *fontEngine(const QScriptItem &si, QFixed *ascent = 0, QFixed *descent = 0, QFixed *leading = 0) const;
+    QFontEngine *fontEngine(const QScriptItem &si, QFixed *ascent = nullptr, QFixed *descent = nullptr, QFixed *leading = nullptr) const;
     QFont font(const QScriptItem &si) const;
     inline QFont font() const { return fnt; }
 
@@ -530,7 +530,7 @@ public:
     inline QTextFormatCollection *formatCollection() const {
         if (block.docHandle())
             return block.docHandle()->formatCollection();
-        return specialData ? specialData->formatCollection.data() : 0;
+        return specialData ? specialData->formatCollection.data() : nullptr;
     }
     QTextCharFormat format(const QScriptItem *si) const;
     inline QAbstractTextDocumentLayout *docLayout() const {
@@ -553,8 +553,8 @@ private:
         mutable int prevPosition;
         mutable int prevLength;
         inline void reset() {
-            prevFontEngine = 0;
-            prevScaledFontEngine = 0;
+            prevFontEngine = nullptr;
+            prevScaledFontEngine = nullptr;
             prevScript = -1;
             prevPosition = -1;
             prevLength = -1;
@@ -684,7 +684,7 @@ Q_DECLARE_TYPEINFO(QTextEngine::ItemDecoration, Q_MOVABLE_TYPE);
 struct QTextLineItemIterator
 {
     QTextLineItemIterator(QTextEngine *eng, int lineNum, const QPointF &pos = QPointF(),
-                          const QTextLayout::FormatRange *_selection = 0);
+                          const QTextLayout::FormatRange *_selection = nullptr);
 
     inline bool atEnd() const { return logicalItem >= nItems - 1; }
     inline bool atBeginning() const { return logicalItem <= 0; }
diff --git a/src/gui/text/qtextformat.h b/src/gui/text/qtextformat.h
index 80d8e82694..a631309ae0 100644
--- a/src/gui/text/qtextformat.h
+++ b/src/gui/text/qtextformat.h
@@ -176,6 +176,9 @@ public:
         BlockNonBreakableLines = 0x1050,
         BlockTrailingHorizontalRulerWidth = 0x1060,
         HeadingLevel = 0x1070,
+        BlockQuoteLevel = 0x1080,
+        BlockCodeLanguage = 0x1090,
+        BlockMarker = 0x10A0,
 
         // character properties
         FirstFontProperty = 0x1FE0,
@@ -605,6 +608,12 @@ public:
         LineDistanceHeight = 4
     };
 
+    enum MarkerType {
+        NoMarker = 0,
+        Unchecked = 1,
+        Checked = 2
+    };
+
     QTextBlockFormat();
 
     bool isValid() const { return isBlockFormat(); }
@@ -668,6 +677,11 @@ public:
     void setTabPositions(const QList<QTextOption::Tab> &tabs);
     QList<QTextOption::Tab> tabPositions() const;
 
+    inline void setMarker(MarkerType marker)
+    { setProperty(BlockMarker, int(marker)); }
+    inline MarkerType marker() const
+    { return MarkerType(intProperty(BlockMarker)); }
+
 protected:
     explicit QTextBlockFormat(const QTextFormat &fmt);
     friend class QTextFormat;
diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index 895232e4c7..37051502fa 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1125,6 +1125,7 @@ void QTextHtmlParserNode::initializeProperties(const QTextHtmlParserNode *parent
             margin[QTextHtmlParser::MarginBottom] = 12;
             margin[QTextHtmlParser::MarginLeft] = 40;
             margin[QTextHtmlParser::MarginRight] = 40;
+            blockFormat.setProperty(QTextFormat::BlockQuoteLevel, 1);
             break;
         case Html_dl:
             margin[QTextHtmlParser::MarginTop] = 8;
diff --git a/src/gui/text/qtextimagehandler_p.h b/src/gui/text/qtextimagehandler_p.h
index 339ef0af4f..fafd394ad3 100644
--- a/src/gui/text/qtextimagehandler_p.h
+++ b/src/gui/text/qtextimagehandler_p.h
@@ -65,7 +65,7 @@ class Q_GUI_EXPORT QTextImageHandler : public QObject,
     Q_OBJECT
     Q_INTERFACES(QTextObjectInterface)
 public:
-    explicit QTextImageHandler(QObject *parent = 0);
+    explicit QTextImageHandler(QObject *parent = nullptr);
 
     virtual QSizeF intrinsicSize(QTextDocument *doc, int posInDocument, const QTextFormat &format) override;
     virtual void drawObject(QPainter *p, const QRectF &rect, QTextDocument *doc, int posInDocument, const QTextFormat &format) override;
diff --git a/src/gui/text/qtextmarkdownimporter.cpp b/src/gui/text/qtextmarkdownimporter.cpp
new file mode 100644
index 0000000000..d8ffec2496
--- /dev/null
+++ b/src/gui/text/qtextmarkdownimporter.cpp
@@ -0,0 +1,542 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qtextmarkdownimporter_p.h"
+#include "qtextdocumentfragment_p.h"
+#include <QLoggingCategory>
+#include <QRegularExpression>
+#include <QTextCursor>
+#include <QTextDocument>
+#include <QTextDocumentFragment>
+#include <QTextList>
+#include <QTextTable>
+#include "../../3rdparty/md4c/md4c.h"
+
+QT_BEGIN_NAMESPACE
+
+Q_LOGGING_CATEGORY(lcMD, "qt.text.markdown")
+
+static const QChar Newline = QLatin1Char('\n');
+static const QChar Space = QLatin1Char(' ');
+
+// TODO maybe eliminate the margins after all views recognize BlockQuoteLevel, CSS can format it, etc.
+static const int BlockQuoteIndent = 40; // pixels, same as in QTextHtmlParserNode::initializeProperties
+
+// --------------------------------------------------------
+// MD4C callback function wrappers
+
+static int CbEnterBlock(MD_BLOCKTYPE type, void *detail, void *userdata)
+{
+    QTextMarkdownImporter *mdi = static_cast<QTextMarkdownImporter *>(userdata);
+    return mdi->cbEnterBlock(int(type), detail);
+}
+
+static int CbLeaveBlock(MD_BLOCKTYPE type, void *detail, void *userdata)
+{
+    QTextMarkdownImporter *mdi = static_cast<QTextMarkdownImporter *>(userdata);
+    return mdi->cbLeaveBlock(int(type), detail);
+}
+
+static int CbEnterSpan(MD_SPANTYPE type, void *detail, void *userdata)
+{
+    QTextMarkdownImporter *mdi = static_cast<QTextMarkdownImporter *>(userdata);
+    return mdi->cbEnterSpan(int(type), detail);
+}
+
+static int CbLeaveSpan(MD_SPANTYPE type, void *detail, void *userdata)
+{
+    QTextMarkdownImporter *mdi = static_cast<QTextMarkdownImporter *>(userdata);
+    return mdi->cbLeaveSpan(int(type), detail);
+}
+
+static int CbText(MD_TEXTTYPE type, const MD_CHAR *text, MD_SIZE size, void *userdata)
+{
+    QTextMarkdownImporter *mdi = static_cast<QTextMarkdownImporter *>(userdata);
+    return mdi->cbText(int(type), text, size);
+}
+
+static void CbDebugLog(const char *msg, void *userdata)
+{
+    Q_UNUSED(userdata)
+    qCDebug(lcMD) << msg;
+}
+
+// MD4C callback function wrappers
+// --------------------------------------------------------
+
+static Qt::Alignment MdAlignment(MD_ALIGN a, Qt::Alignment defaultAlignment = Qt::AlignLeft | Qt::AlignVCenter)
+{
+    switch (a) {
+    case MD_ALIGN_LEFT:
+        return Qt::AlignLeft | Qt::AlignVCenter;
+    case MD_ALIGN_CENTER:
+        return Qt::AlignHCenter | Qt::AlignVCenter;
+    case MD_ALIGN_RIGHT:
+        return Qt::AlignRight | Qt::AlignVCenter;
+    default: // including MD_ALIGN_DEFAULT
+        return defaultAlignment;
+    }
+}
+
+QTextMarkdownImporter::QTextMarkdownImporter(QTextMarkdownImporter::Features features)
+  : m_monoFont(QFontDatabase::systemFont(QFontDatabase::FixedFont))
+  , m_features(features)
+{
+}
+
+void QTextMarkdownImporter::import(QTextDocument *doc, const QString &markdown)
+{
+    MD_PARSER callbacks = {
+        0, // abi_version
+        unsigned(m_features),
+        &CbEnterBlock,
+        &CbLeaveBlock,
+        &CbEnterSpan,
+        &CbLeaveSpan,
+        &CbText,
+        &CbDebugLog,
+        nullptr // syntax
+    };
+    m_doc = doc;
+    m_paragraphMargin = m_doc->defaultFont().pointSize() * 2 / 3;
+    m_cursor = new QTextCursor(doc);
+    doc->clear();
+    qCDebug(lcMD) << "default font" << doc->defaultFont() << "mono font" << m_monoFont;
+    QByteArray md = markdown.toUtf8();
+    md_parse(md.constData(), MD_SIZE(md.size()), &callbacks, this);
+    delete m_cursor;
+    m_cursor = nullptr;
+}
+
+int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
+{
+    m_blockType = blockType;
+    switch (blockType) {
+    case MD_BLOCK_P:
+        if (m_listStack.isEmpty()) {
+            m_needsInsertBlock = true;
+            qCDebug(lcMD, "P");
+        } else {
+            if (m_emptyListItem) {
+                qCDebug(lcMD, "LI text block at level %d -> BlockIndent %d",
+                        m_listStack.count(), m_cursor->blockFormat().indent());
+                m_emptyListItem = false;
+            } else {
+                qCDebug(lcMD, "P inside LI at level %d", m_listStack.count());
+                m_needsInsertBlock = true;
+            }
+        }
+        break;
+    case MD_BLOCK_QUOTE: {
+        ++m_blockQuoteDepth;
+        qCDebug(lcMD, "QUOTE level %d", m_blockQuoteDepth);
+        break;
+    }
+    case MD_BLOCK_CODE: {
+        MD_BLOCK_CODE_DETAIL *detail = static_cast<MD_BLOCK_CODE_DETAIL *>(det);
+        m_codeBlock = true;
+        m_blockCodeLanguage = QLatin1String(detail->lang.text, int(detail->lang.size));
+        QString info = QLatin1String(detail->info.text, int(detail->info.size));
+        m_needsInsertBlock = true;
+        if (m_blockQuoteDepth)
+            qCDebug(lcMD, "CODE lang '%s' info '%s' inside QUOTE %d", qPrintable(m_blockCodeLanguage), qPrintable(info), m_blockQuoteDepth);
+        else
+            qCDebug(lcMD, "CODE lang '%s' info '%s'", qPrintable(m_blockCodeLanguage), qPrintable(info));
+    } break;
+    case MD_BLOCK_H: {
+        MD_BLOCK_H_DETAIL *detail = static_cast<MD_BLOCK_H_DETAIL *>(det);
+        QTextBlockFormat blockFmt;
+        QTextCharFormat charFmt;
+        int sizeAdjustment = 4 - int(detail->level); // H1 to H6: +3 to -2
+        charFmt.setProperty(QTextFormat::FontSizeAdjustment, sizeAdjustment);
+        charFmt.setFontWeight(QFont::Bold);
+        blockFmt.setHeadingLevel(int(detail->level));
+        m_needsInsertBlock = false;
+        m_cursor->insertBlock(blockFmt, charFmt);
+        qCDebug(lcMD, "H%d", detail->level);
+    } break;
+    case MD_BLOCK_LI: {
+        m_needsInsertBlock = false;
+        MD_BLOCK_LI_DETAIL *detail = static_cast<MD_BLOCK_LI_DETAIL *>(det);
+        QTextList *list = m_listStack.top();
+        QTextBlockFormat bfmt = list->item(list->count() - 1).blockFormat();
+        bfmt.setMarker(detail->is_task ?
+                           (detail->task_mark == ' ' ? QTextBlockFormat::Unchecked : QTextBlockFormat::Checked) :
+                           QTextBlockFormat::NoMarker);
+        if (!m_emptyList) {
+            m_cursor->insertBlock(bfmt, QTextCharFormat());
+            list->add(m_cursor->block());
+        }
+        m_cursor->setBlockFormat(bfmt);
+        qCDebug(lcMD) << (m_emptyList ? "LI (first in list)" : "LI");
+        m_emptyList = false; // Avoid insertBlock for the first item (because insertList already did that)
+        m_listItem = true;
+        m_emptyListItem = true;
+    } break;
+    case MD_BLOCK_UL: {
+        MD_BLOCK_UL_DETAIL *detail = static_cast<MD_BLOCK_UL_DETAIL *>(det);
+        QTextListFormat fmt;
+        fmt.setIndent(m_listStack.count() + 1);
+        switch (detail->mark) {
+        case '*':
+            fmt.setStyle(QTextListFormat::ListCircle);
+            break;
+        case '+':
+            fmt.setStyle(QTextListFormat::ListSquare);
+            break;
+        default: // including '-'
+            fmt.setStyle(QTextListFormat::ListDisc);
+            break;
+        }
+        qCDebug(lcMD, "UL %c level %d", detail->mark, m_listStack.count());
+        m_listStack.push(m_cursor->insertList(fmt));
+        m_emptyList = true;
+    } break;
+    case MD_BLOCK_OL: {
+        MD_BLOCK_OL_DETAIL *detail = static_cast<MD_BLOCK_OL_DETAIL *>(det);
+        QTextListFormat fmt;
+        fmt.setIndent(m_listStack.count() + 1);
+        fmt.setNumberSuffix(QChar::fromLatin1(detail->mark_delimiter));
+        fmt.setStyle(QTextListFormat::ListDecimal);
+        qCDebug(lcMD, "OL xx%d level %d", detail->mark_delimiter, m_listStack.count());
+        m_listStack.push(m_cursor->insertList(fmt));
+        m_emptyList = true;
+    } break;
+    case MD_BLOCK_TD: {
+        MD_BLOCK_TD_DETAIL *detail = static_cast<MD_BLOCK_TD_DETAIL *>(det);
+        ++m_tableCol;
+        // absolute movement (and storage of m_tableCol) shouldn't be necessary, but
+        // movePosition(QTextCursor::NextCell) doesn't work
+        QTextTableCell cell = m_currentTable->cellAt(m_tableRowCount - 1, m_tableCol);
+        if (!cell.isValid()) {
+            qWarning("malformed table in Markdown input");
+            return 1;
+        }
+        *m_cursor = cell.firstCursorPosition();
+        QTextBlockFormat blockFmt = m_cursor->blockFormat();
+        blockFmt.setAlignment(MdAlignment(detail->align));
+        m_cursor->setBlockFormat(blockFmt);
+        qCDebug(lcMD) << "TD; align" << detail->align << MdAlignment(detail->align) << "col" << m_tableCol;
+    } break;
+    case MD_BLOCK_TH: {
+        ++m_tableColumnCount;
+        ++m_tableCol;
+        if (m_currentTable->columns() < m_tableColumnCount)
+            m_currentTable->appendColumns(1);
+        auto cell = m_currentTable->cellAt(m_tableRowCount - 1, m_tableCol);
+        if (!cell.isValid()) {
+            qWarning("malformed table in Markdown input");
+            return 1;
+        }
+        auto fmt = cell.format();
+        fmt.setFontWeight(QFont::Bold);
+        cell.setFormat(fmt);
+    } break;
+    case MD_BLOCK_TR: {
+        ++m_tableRowCount;
+        m_nonEmptyTableCells.clear();
+        if (m_currentTable->rows() < m_tableRowCount)
+            m_currentTable->appendRows(1);
+        m_tableCol = -1;
+        qCDebug(lcMD) << "TR" << m_currentTable->rows();
+    } break;
+    case MD_BLOCK_TABLE:
+        m_tableColumnCount = 0;
+        m_tableRowCount = 0;
+        m_currentTable = m_cursor->insertTable(1, 1); // we don't know the dimensions yet
+        break;
+    case MD_BLOCK_HR: {
+        qCDebug(lcMD, "HR");
+        QTextBlockFormat blockFmt;
+        blockFmt.setProperty(QTextFormat::BlockTrailingHorizontalRulerWidth, 1);
+        m_cursor->insertBlock(blockFmt, QTextCharFormat());
+    } break;
+    default:
+        break; // nothing to do for now
+    }
+    return 0; // no error
+}
+
+int QTextMarkdownImporter::cbLeaveBlock(int blockType, void *detail)
+{
+    Q_UNUSED(detail)
+    switch (blockType) {
+    case MD_BLOCK_UL:
+    case MD_BLOCK_OL:
+        qCDebug(lcMD, "list at level %d ended", m_listStack.count());
+        m_listStack.pop();
+        break;
+    case MD_BLOCK_TR: {
+        // https://github.com/mity/md4c/issues/29
+        // MD4C doesn't tell us explicitly which cells are merged, so merge empty cells
+        // with previous non-empty ones
+        int mergeEnd = -1;
+        int mergeBegin = -1;
+        for (int col = m_tableCol; col >= 0; --col) {
+            if (m_nonEmptyTableCells.contains(col)) {
+                if (mergeEnd >= 0 && mergeBegin >= 0) {
+                    qCDebug(lcMD) << "merging cells" << mergeBegin << "to" << mergeEnd << "inclusive, on row" << m_currentTable->rows() - 1;
+                    m_currentTable->mergeCells(m_currentTable->rows() - 1, mergeBegin - 1, 1, mergeEnd - mergeBegin + 2);
+                }
+                mergeEnd = -1;
+                mergeBegin = -1;
+            } else {
+                if (mergeEnd < 0)
+                    mergeEnd = col;
+                else
+                    mergeBegin = col;
+            }
+        }
+    } break;
+    case MD_BLOCK_QUOTE: {
+        qCDebug(lcMD, "QUOTE level %d ended", m_blockQuoteDepth);
+        --m_blockQuoteDepth;
+        m_needsInsertBlock = true;
+    } break;
+    case MD_BLOCK_TABLE:
+        qCDebug(lcMD) << "table ended with" << m_currentTable->columns() << "cols and" << m_currentTable->rows() << "rows";
+        m_currentTable = nullptr;
+        m_cursor->movePosition(QTextCursor::End);
+        break;
+    case MD_BLOCK_LI:
+        qCDebug(lcMD, "LI at level %d ended", m_listStack.count());
+        m_listItem = false;
+        break;
+    case MD_BLOCK_CODE: {
+        m_codeBlock = false;
+        m_blockCodeLanguage.clear();
+        if (m_blockQuoteDepth)
+            qCDebug(lcMD, "CODE ended inside QUOTE %d", m_blockQuoteDepth);
+        else
+            qCDebug(lcMD, "CODE ended");
+        m_needsInsertBlock = true;
+    } break;
+    case MD_BLOCK_H:
+        m_cursor->setCharFormat(QTextCharFormat());
+        break;
+    default:
+        break;
+    }
+    return 0; // no error
+}
+
+int QTextMarkdownImporter::cbEnterSpan(int spanType, void *det)
+{
+    QTextCharFormat charFmt;
+    switch (spanType) {
+    case MD_SPAN_EM:
+        charFmt.setFontItalic(true);
+        break;
+    case MD_SPAN_STRONG:
+        charFmt.setFontWeight(QFont::Bold);
+        break;
+    case MD_SPAN_A: {
+        MD_SPAN_A_DETAIL *detail = static_cast<MD_SPAN_A_DETAIL *>(det);
+        QString url = QString::fromLatin1(detail->href.text, int(detail->href.size));
+        QString title = QString::fromLatin1(detail->title.text, int(detail->title.size));
+        charFmt.setAnchorHref(url);
+        charFmt.setAnchorNames(QStringList(title));
+        charFmt.setForeground(m_palette.link());
+        qCDebug(lcMD) << "anchor" << url << title;
+        } break;
+    case MD_SPAN_IMG: {
+        m_imageSpan = true;
+        MD_SPAN_IMG_DETAIL *detail = static_cast<MD_SPAN_IMG_DETAIL *>(det);
+        QString src = QString::fromUtf8(detail->src.text, int(detail->src.size));
+        QString title = QString::fromUtf8(detail->title.text, int(detail->title.size));
+        QTextImageFormat img;
+        img.setName(src);
+        if (m_needsInsertBlock)
+            insertBlock();
+        qCDebug(lcMD) << "image" << src << "title" << title << "relative to" << m_doc->baseUrl();
+        m_cursor->insertImage(img);
+        break;
+    }
+    case MD_SPAN_CODE:
+        charFmt.setFont(m_monoFont);
+        break;
+    case MD_SPAN_DEL:
+        charFmt.setFontStrikeOut(true);
+        break;
+    }
+    m_spanFormatStack.push(charFmt);
+    qCDebug(lcMD) << spanType << "setCharFormat" << charFmt.font().family() << charFmt.fontWeight()
+                  << (charFmt.fontItalic() ? "italic" : "") << charFmt.foreground().color().name();
+    m_cursor->setCharFormat(charFmt);
+    return 0; // no error
+}
+
+int QTextMarkdownImporter::cbLeaveSpan(int spanType, void *detail)
+{
+    Q_UNUSED(detail)
+    QTextCharFormat charFmt;
+    if (!m_spanFormatStack.isEmpty()) {
+        m_spanFormatStack.pop();
+        if (!m_spanFormatStack.isEmpty())
+            charFmt = m_spanFormatStack.top();
+    }
+    m_cursor->setCharFormat(charFmt);
+    qCDebug(lcMD) << spanType << "setCharFormat" << charFmt.font().family() << charFmt.fontWeight()
+                  << (charFmt.fontItalic() ? "italic" : "") << charFmt.foreground().color().name();
+    if (spanType == int(MD_SPAN_IMG))
+        m_imageSpan = false;
+    return 0; // no error
+}
+
+int QTextMarkdownImporter::cbText(int textType, const char *text, unsigned size)
+{
+    if (m_imageSpan)
+        return 0; // it's the alt-text
+    if (m_needsInsertBlock)
+        insertBlock();
+    static const QRegularExpression openingBracket(QStringLiteral("<[a-zA-Z]"));
+    static const QRegularExpression closingBracket(QStringLiteral("(/>|</)"));
+    QString s = QString::fromUtf8(text, int(size));
+
+    switch (textType) {
+    case MD_TEXT_NORMAL:
+        if (m_htmlTagDepth) {
+            m_htmlAccumulator += s;
+            s = QString();
+        }
+        break;
+    case MD_TEXT_NULLCHAR:
+        s = QString(QChar(0xFFFD)); // CommonMark-required replacement for null
+        break;
+    case MD_TEXT_BR:
+        s = QString(Newline);
+        break;
+    case MD_TEXT_SOFTBR:
+        s = QString(Space);
+        break;
+    case MD_TEXT_CODE:
+        // We'll see MD_SPAN_CODE too, which will set the char format, and that's enough.
+        break;
+    case MD_TEXT_ENTITY:
+        m_cursor->insertHtml(s);
+        s = QString();
+        break;
+    case MD_TEXT_HTML:
+        // count how many tags are opened and how many are closed
+        {
+            int startIdx = 0;
+            while ((startIdx = s.indexOf(openingBracket, startIdx)) >= 0) {
+                ++m_htmlTagDepth;
+                startIdx += 2;
+            }
+            startIdx = 0;
+            while ((startIdx = s.indexOf(closingBracket, startIdx)) >= 0) {
+                --m_htmlTagDepth;
+                startIdx += 2;
+            }
+        }
+        m_htmlAccumulator += s;
+        s = QString();
+        if (!m_htmlTagDepth) { // all open tags are now closed
+            qCDebug(lcMD) << "HTML" << m_htmlAccumulator;
+            m_cursor->insertHtml(m_htmlAccumulator);
+            if (m_spanFormatStack.isEmpty())
+                m_cursor->setCharFormat(QTextCharFormat());
+            else
+                m_cursor->setCharFormat(m_spanFormatStack.top());
+            m_htmlAccumulator = QString();
+        }
+        break;
+    }
+
+    switch (m_blockType) {
+    case MD_BLOCK_TD:
+        m_nonEmptyTableCells.append(m_tableCol);
+        break;
+    default:
+        break;
+    }
+
+    if (!s.isEmpty())
+        m_cursor->insertText(s);
+    if (m_cursor->currentList()) {
+        // The list item will indent the list item's text, so we don't need indentation on the block.
+        QTextBlockFormat bfmt = m_cursor->blockFormat();
+        bfmt.setIndent(0);
+        m_cursor->setBlockFormat(bfmt);
+    }
+    if (lcMD().isEnabled(QtDebugMsg)) {
+        QTextBlockFormat bfmt = m_cursor->blockFormat();
+        QString debugInfo;
+        if (m_cursor->currentList())
+            debugInfo = QLatin1String("in list at depth ") + QString::number(m_cursor->currentList()->format().indent());
+        if (bfmt.hasProperty(QTextFormat::BlockQuoteLevel))
+            debugInfo += QLatin1String("in blockquote at depth ") +
+                    QString::number(bfmt.intProperty(QTextFormat::BlockQuoteLevel));
+        if (bfmt.hasProperty(QTextFormat::BlockCodeLanguage))
+            debugInfo += QLatin1String("in a code block");
+        qCDebug(lcMD) << textType << "in block" << m_blockType << s << qPrintable(debugInfo)
+                      << "bindent" << bfmt.indent() << "tindent" << bfmt.textIndent()
+                      << "margins" << bfmt.leftMargin() << bfmt.topMargin() << bfmt.bottomMargin() << bfmt.rightMargin();
+    }
+    qCDebug(lcMD) << textType << "in block" << m_blockType << s << "in list?" << m_cursor->currentList()
+                  << "indent" << m_cursor->blockFormat().indent();
+    return 0; // no error
+}
+
+void QTextMarkdownImporter::insertBlock()
+{
+    QTextCharFormat charFormat;
+    if (!m_spanFormatStack.isEmpty())
+        charFormat = m_spanFormatStack.top();
+    QTextBlockFormat blockFormat;
+    if (m_blockQuoteDepth) {
+        blockFormat.setProperty(QTextFormat::BlockQuoteLevel, m_blockQuoteDepth);
+        blockFormat.setLeftMargin(BlockQuoteIndent * m_blockQuoteDepth);
+        blockFormat.setRightMargin(BlockQuoteIndent);
+    }
+    if (m_listStack.count())
+        blockFormat.setIndent(m_listStack.count());
+    if (m_codeBlock) {
+        blockFormat.setProperty(QTextFormat::BlockCodeLanguage, m_blockCodeLanguage);
+        charFormat.setFont(m_monoFont);
+    } else {
+        blockFormat.setTopMargin(m_paragraphMargin);
+        blockFormat.setBottomMargin(m_paragraphMargin);
+    }
+    m_cursor->insertBlock(blockFormat, charFormat);
+    m_needsInsertBlock = false;
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/text/qtextmarkdownimporter_p.h b/src/gui/text/qtextmarkdownimporter_p.h
new file mode 100644
index 0000000000..1716530b1d
--- /dev/null
+++ b/src/gui/text/qtextmarkdownimporter_p.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTEXTMARKDOWNIMPORTER_H
+#define QTEXTMARKDOWNIMPORTER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qfont.h>
+#include <QtGui/qtguiglobal.h>
+#include <QtGui/qpalette.h>
+#include <QtGui/qtextlist.h>
+#include <QtCore/qstack.h>
+
+QT_BEGIN_NAMESPACE
+
+class QTextCursor;
+class QTextDocument;
+class QTextTable;
+
+class Q_GUI_EXPORT QTextMarkdownImporter
+{
+public:
+    enum Feature {
+        // Must be kept in sync with MD_FLAG_* in md4c.h
+        FeatureCollapseWhitespace =       0x0001, // MD_FLAG_COLLAPSEWHITESPACE
+        FeaturePermissiveATXHeaders =     0x0002, // MD_FLAG_PERMISSIVEATXHEADERS
+        FeaturePermissiveURLAutoLinks =   0x0004, // MD_FLAG_PERMISSIVEURLAUTOLINKS
+        FeaturePermissiveMailAutoLinks =  0x0008, // MD_FLAG_PERMISSIVEEMAILAUTOLINKS
+        FeatureNoIndentedCodeBlocks =     0x0010, // MD_FLAG_NOINDENTEDCODEBLOCKS
+        FeatureNoHTMLBlocks =             0x0020, // MD_FLAG_NOHTMLBLOCKS
+        FeatureNoHTMLSpans =              0x0040, // MD_FLAG_NOHTMLSPANS
+        FeatureTables =                   0x0100, // MD_FLAG_TABLES
+        FeatureStrikeThrough =            0x0200, // MD_FLAG_STRIKETHROUGH
+        FeaturePermissiveWWWAutoLinks =   0x0400, // MD_FLAG_PERMISSIVEWWWAUTOLINKS
+        FeatureTasklists =                0x0800, // MD_FLAG_TASKLISTS
+        // composite flags
+        FeaturePermissiveAutoLinks =  FeaturePermissiveMailAutoLinks | FeaturePermissiveURLAutoLinks | FeaturePermissiveWWWAutoLinks, // MD_FLAG_PERMISSIVEAUTOLINKS
+        FeatureNoHTML = FeatureNoHTMLBlocks | FeatureNoHTMLSpans, // MD_FLAG_NOHTML
+        DialectCommonMark = 0,                   // MD_DIALECT_COMMONMARK
+        DialectGitHub = FeaturePermissiveAutoLinks | FeatureTables | FeatureStrikeThrough | FeatureTasklists // MD_DIALECT_GITHUB
+    };
+    Q_DECLARE_FLAGS(Features, Feature)
+
+    QTextMarkdownImporter(Features features);
+
+    void import(QTextDocument *doc, const QString &markdown);
+
+public:
+    // MD4C callbacks
+    int cbEnterBlock(int blockType, void* detail);
+    int cbLeaveBlock(int blockType, void* detail);
+    int cbEnterSpan(int spanType, void* detail);
+    int cbLeaveSpan(int spanType, void* detail);
+    int cbText(int textType, const char* text, unsigned size);
+
+private:
+    void insertBlock();
+
+private:
+    QTextDocument *m_doc = nullptr;
+    QTextCursor *m_cursor = nullptr;
+    QTextTable *m_currentTable = nullptr; // because m_cursor->currentTable() doesn't work
+    QString m_htmlAccumulator;
+    QString m_blockCodeLanguage;
+    QVector<int> m_nonEmptyTableCells; // in the current row
+    QStack<QTextList *> m_listStack;
+    QStack<QTextCharFormat> m_spanFormatStack;
+    QFont m_monoFont;
+    QPalette m_palette;
+    int m_htmlTagDepth = 0;
+    int m_blockQuoteDepth = 0;
+    int m_tableColumnCount = 0;
+    int m_tableRowCount = 0;
+    int m_tableCol = -1; // because relative cell movements (e.g. m_cursor->movePosition(QTextCursor::NextCell)) don't work
+    int m_paragraphMargin = 0;
+    Features m_features;
+    int m_blockType = 0;
+    bool m_emptyList = false; // true when the last thing we did was insertList
+    bool m_listItem = false;
+    bool m_emptyListItem = false;
+    bool m_codeBlock = false;
+    bool m_imageSpan = false;
+    bool m_needsInsertBlock = false;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QTextMarkdownImporter::Features)
+
+QT_END_NAMESPACE
+
+#endif // QTEXTMARKDOWNIMPORTER_H
diff --git a/src/gui/text/qtextmarkdownwriter.cpp b/src/gui/text/qtextmarkdownwriter.cpp
new file mode 100644
index 0000000000..f180098db2
--- /dev/null
+++ b/src/gui/text/qtextmarkdownwriter.cpp
@@ -0,0 +1,484 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qtextmarkdownwriter_p.h"
+#include "qtextdocumentlayout_p.h"
+#include "qfontinfo.h"
+#include "qfontmetrics.h"
+#include "qtextdocument_p.h"
+#include "qtextlist.h"
+#include "qtexttable.h"
+#include "qtextcursor.h"
+#include "qtextimagehandler_p.h"
+#include "qloggingcategory.h"
+
+QT_BEGIN_NAMESPACE
+
+Q_LOGGING_CATEGORY(lcMDW, "qt.text.markdown.writer")
+
+static const QChar Space = QLatin1Char(' ');
+static const QChar Newline = QLatin1Char('\n');
+static const QChar LineBreak = QChar(0x2028);
+static const QChar Backtick = QLatin1Char('`');
+static const QChar Period = QLatin1Char('.');
+
+QTextMarkdownWriter::QTextMarkdownWriter(QTextStream &stream, QTextDocument::MarkdownFeatures features)
+  : m_stream(stream), m_features(features)
+{
+}
+
+bool QTextMarkdownWriter::writeAll(const QTextDocument *document)
+{
+    writeFrame(document->rootFrame());
+    return true;
+}
+
+void QTextMarkdownWriter::writeTable(const QAbstractItemModel *table)
+{
+    QVector<int> tableColumnWidths(table->columnCount());
+    for (int col = 0; col < table->columnCount(); ++col) {
+        tableColumnWidths[col] = table->headerData(col, Qt::Horizontal).toString().length();
+        for (int row = 0; row < table->rowCount(); ++row) {
+            tableColumnWidths[col] = qMax(tableColumnWidths[col],
+                table->data(table->index(row, col)).toString().length());
+        }
+    }
+
+    // write the header and separator
+    for (int col = 0; col < table->columnCount(); ++col) {
+        QString s = table->headerData(col, Qt::Horizontal).toString();
+        m_stream << "|" << s << QString(tableColumnWidths[col] - s.length(), Space);
+    }
+    m_stream << "|" << Qt::endl;
+    for (int col = 0; col < tableColumnWidths.length(); ++col)
+        m_stream << '|' << QString(tableColumnWidths[col], QLatin1Char('-'));
+    m_stream << '|'<< Qt::endl;
+
+    // write the body
+    for (int row = 0; row < table->rowCount(); ++row) {
+        for (int col = 0; col < table->columnCount(); ++col) {
+            QString s = table->data(table->index(row, col)).toString();
+            m_stream << "|" << s << QString(tableColumnWidths[col] - s.length(), Space);
+        }
+        m_stream << '|'<< Qt::endl;
+    }
+    m_listInfo.clear();
+}
+
+void QTextMarkdownWriter::writeFrame(const QTextFrame *frame)
+{
+    Q_ASSERT(frame);
+    const QTextTable *table = qobject_cast<const QTextTable*> (frame);
+    QTextFrame::iterator iterator = frame->begin();
+    QTextFrame *child = nullptr;
+    int tableRow = -1;
+    bool lastWasList = false;
+    QVector<int> tableColumnWidths;
+    if (table) {
+        tableColumnWidths.resize(table->columns());
+        for (int col = 0; col < table->columns(); ++col) {
+            for (int row = 0; row < table->rows(); ++ row) {
+                QTextTableCell cell = table->cellAt(row, col);
+                int cellTextLen = 0;
+                auto it = cell.begin();
+                while (it != cell.end()) {
+                    QTextBlock block = it.currentBlock();
+                    if (block.isValid())
+                        cellTextLen += block.text().length();
+                    ++it;
+                }
+                if (cell.columnSpan() == 1 && tableColumnWidths[col] < cellTextLen)
+                    tableColumnWidths[col] = cellTextLen;
+            }
+        }
+    }
+    while (!iterator.atEnd()) {
+        if (iterator.currentFrame() && child != iterator.currentFrame())
+            writeFrame(iterator.currentFrame());
+        else { // no frame, it's a block
+            QTextBlock block = iterator.currentBlock();
+            if (table) {
+                QTextTableCell cell = table->cellAt(block.position());
+                if (tableRow < cell.row()) {
+                    if (tableRow == 0) {
+                        m_stream << Newline;
+                        for (int col = 0; col < tableColumnWidths.length(); ++col)
+                            m_stream << '|' << QString(tableColumnWidths[col], QLatin1Char('-'));
+                        m_stream << '|';
+                    }
+                    m_stream << Newline << "|";
+                    tableRow = cell.row();
+                }
+            } else if (!block.textList()) {
+                if (lastWasList)
+                    m_stream << Newline;
+            }
+            int endingCol = writeBlock(block, !table, table && tableRow == 0);
+            m_doubleNewlineWritten = false;
+            if (table) {
+                QTextTableCell cell = table->cellAt(block.position());
+                int paddingLen = -endingCol;
+                int spanEndCol = cell.column() + cell.columnSpan();
+                for (int col = cell.column(); col < spanEndCol; ++col)
+                    paddingLen += tableColumnWidths[col];
+                if (paddingLen > 0)
+                    m_stream << QString(paddingLen, Space);
+                for (int col = cell.column(); col < spanEndCol; ++col)
+                    m_stream << "|";
+            } else if (block.textList() || block.blockFormat().hasProperty(QTextFormat::BlockCodeLanguage)) {
+                m_stream << Newline;
+            } else if (endingCol > 0) {
+                m_stream << Newline << Newline;
+                m_doubleNewlineWritten = true;
+            }
+            lastWasList = block.textList();
+        }
+        child = iterator.currentFrame();
+        ++iterator;
+    }
+    if (table) {
+        m_stream << Newline << Newline;
+        m_doubleNewlineWritten = true;
+    }
+    m_listInfo.clear();
+}
+
+QTextMarkdownWriter::ListInfo QTextMarkdownWriter::listInfo(QTextList *list)
+{
+    if (!m_listInfo.contains(list)) {
+        // decide whether this list is loose or tight
+        ListInfo info;
+        info.loose = false;
+        if (list->count() > 1) {
+            QTextBlock first = list->item(0);
+            QTextBlock last = list->item(list->count() - 1);
+            QTextBlock next = first.next();
+            while (next.isValid()) {
+                if (next == last)
+                    break;
+                qCDebug(lcMDW) << "next block in list" << list << next.text() << "part of list?" << next.textList();
+                if (!next.textList()) {
+                    // If we find a continuation paragraph, this list is "loose"
+                    // because it will need a blank line to separate that paragraph.
+                    qCDebug(lcMDW) << "decided list beginning with" << first.text() << "is loose after" << next.text();
+                    info.loose = true;
+                    break;
+                }
+                next = next.next();
+            }
+        }
+        m_listInfo.insert(list, info);
+        return info;
+    }
+    return m_listInfo.value(list);
+}
+
+static int nearestWordWrapIndex(const QString &s, int before)
+{
+    before = qMin(before, s.length());
+    for (int i = before - 1; i >= 0; --i) {
+        if (s.at(i).isSpace())
+            return i;
+    }
+    return -1;
+}
+
+static int adjacentBackticksCount(const QString &s)
+{
+    int start = -1, len = s.length();
+    int ret = 0;
+    for (int i = 0; i < len; ++i) {
+        if (s.at(i) == Backtick) {
+            if (start < 0)
+                start = i;
+        } else if (start >= 0) {
+            ret = qMax(ret, i - start);
+            start = -1;
+        }
+    }
+    if (s.at(len - 1) == Backtick)
+        ret = qMax(ret, len - start);
+    return ret;
+}
+
+static void maybeEscapeFirstChar(QString &s)
+{
+    QString sTrimmed = s.trimmed();
+    if (sTrimmed.isEmpty())
+        return;
+    char firstChar = sTrimmed.at(0).toLatin1();
+    if (firstChar == '*' || firstChar == '+' || firstChar == '-') {
+        int i = s.indexOf(QLatin1Char(firstChar));
+        s.insert(i, QLatin1Char('\\'));
+    }
+}
+
+int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ignoreFormat)
+{
+    int ColumnLimit = 80;
+    QTextBlockFormat blockFmt = block.blockFormat();
+    bool indentedCodeBlock = false;
+    if (block.textList()) { // it's a list-item
+        auto fmt = block.textList()->format();
+        const int listLevel = fmt.indent();
+        const int number = block.textList()->itemNumber(block) + 1;
+        QByteArray bullet = " ";
+        bool numeric = false;
+        switch (fmt.style()) {
+        case QTextListFormat::ListDisc:
+            bullet = "-";
+            m_wrappedLineIndent = 2;
+            break;
+        case QTextListFormat::ListCircle:
+            bullet = "*";
+            m_wrappedLineIndent = 2;
+            break;
+        case QTextListFormat::ListSquare:
+            bullet = "+";
+            m_wrappedLineIndent = 2;
+            break;
+        case QTextListFormat::ListStyleUndefined: break;
+        case QTextListFormat::ListDecimal:
+        case QTextListFormat::ListLowerAlpha:
+        case QTextListFormat::ListUpperAlpha:
+        case QTextListFormat::ListLowerRoman:
+        case QTextListFormat::ListUpperRoman:
+            numeric = true;
+            m_wrappedLineIndent = 4;
+            break;
+        }
+        switch (blockFmt.marker()) {
+        case QTextBlockFormat::Checked:
+            bullet += " [x]";
+            break;
+        case QTextBlockFormat::Unchecked:
+            bullet += " [ ]";
+            break;
+        default:
+            break;
+        }
+        int indentFirstLine = (listLevel - 1) * (numeric ? 4 : 2);
+        m_wrappedLineIndent += indentFirstLine;
+        if (m_lastListIndent != listLevel && !m_doubleNewlineWritten && listInfo(block.textList()).loose)
+            m_stream << Newline;
+        m_lastListIndent = listLevel;
+        QString prefix(indentFirstLine, Space);
+        if (numeric) {
+            QString suffix = fmt.numberSuffix();
+            if (suffix.isEmpty())
+                suffix = QString(Period);
+            QString numberStr = QString::number(number) + suffix + Space;
+            if (numberStr.length() == 3)
+                numberStr += Space;
+            prefix += numberStr;
+        } else {
+            prefix += QLatin1String(bullet) + Space;
+        }
+        m_stream << prefix;
+    } else if (blockFmt.hasProperty(QTextFormat::BlockTrailingHorizontalRulerWidth)) {
+        m_stream << "- - -\n"; // unambiguous horizontal rule, not an underline under a heading
+        return 0;
+    } else if (!blockFmt.indent()) {
+        m_wrappedLineIndent = 0;
+        m_linePrefix.clear();
+        if (blockFmt.hasProperty(QTextFormat::BlockQuoteLevel)) {
+            int level = blockFmt.intProperty(QTextFormat::BlockQuoteLevel);
+            QString quoteMarker = QStringLiteral("> ");
+            m_linePrefix.reserve(level * 2);
+            for (int i = 0; i < level; ++i)
+                m_linePrefix += quoteMarker;
+        }
+        if (blockFmt.hasProperty(QTextFormat::BlockCodeLanguage)) {
+            // A block quote can contain an indented code block, but not vice-versa.
+            m_linePrefix += QString(4, Space);
+            indentedCodeBlock = true;
+        }
+    }
+    if (blockFmt.headingLevel())
+        m_stream << QByteArray(blockFmt.headingLevel(), '#') << ' ';
+    else
+        m_stream << m_linePrefix;
+
+    QString wrapIndentString = m_linePrefix + QString(m_wrappedLineIndent, Space);
+    // It would be convenient if QTextStream had a lineCharPos() accessor,
+    // to keep track of how many characters (not bytes) have been written on the current line,
+    // but it doesn't.  So we have to keep track with this col variable.
+    int col = wrapIndentString.length();
+    bool mono = false;
+    bool startsOrEndsWithBacktick = false;
+    bool bold = false;
+    bool italic = false;
+    bool underline = false;
+    bool strikeOut = false;
+    QString backticks(Backtick);
+    for (QTextBlock::Iterator frag = block.begin(); !frag.atEnd(); ++frag) {
+        QString fragmentText = frag.fragment().text();
+        while (fragmentText.endsWith(Newline))
+            fragmentText.chop(1);
+        if (block.textList()) { // <li>first line</br>continuation</li>
+            QString newlineIndent = QString(Newline) + QString(m_wrappedLineIndent, Space);
+            fragmentText.replace(QString(LineBreak), newlineIndent);
+        } else if (blockFmt.indent() > 0) { // <li>first line<p>continuation</p></li>
+            m_stream << QString(m_wrappedLineIndent, Space);
+        } else {
+            fragmentText.replace(LineBreak, Newline);
+        }
+        startsOrEndsWithBacktick |= fragmentText.startsWith(Backtick) || fragmentText.endsWith(Backtick);
+        QTextCharFormat fmt = frag.fragment().charFormat();
+        if (fmt.isImageFormat()) {
+            QTextImageFormat ifmt = fmt.toImageFormat();
+            QString s = QLatin1String("![image](") + ifmt.name() + QLatin1Char(')');
+            if (wrap && col + s.length() > ColumnLimit) {
+                m_stream << Newline << wrapIndentString;
+                col = m_wrappedLineIndent;
+            }
+            m_stream << s;
+            col += s.length();
+        } else if (fmt.hasProperty(QTextFormat::AnchorHref)) {
+            QString s = QLatin1Char('[') + fragmentText + QLatin1String("](") +
+                    fmt.property(QTextFormat::AnchorHref).toString() + QLatin1Char(')');
+            if (wrap && col + s.length() > ColumnLimit) {
+                m_stream << Newline << wrapIndentString;
+                col = m_wrappedLineIndent;
+            }
+            m_stream << s;
+            col += s.length();
+        } else {
+            QFontInfo fontInfo(fmt.font());
+            bool monoFrag = fontInfo.fixedPitch();
+            QString markers;
+            if (!ignoreFormat) {
+                if (monoFrag != mono && !indentedCodeBlock) {
+                    if (monoFrag)
+                        backticks = QString(adjacentBackticksCount(fragmentText) + 1, Backtick);
+                    markers += backticks;
+                    if (startsOrEndsWithBacktick)
+                        markers += Space;
+                    mono = monoFrag;
+                }
+                if (!blockFmt.headingLevel() && !mono) {
+                    if (fontInfo.bold() != bold) {
+                        markers += QLatin1String("**");
+                        bold = fontInfo.bold();
+                    }
+                    if (fontInfo.italic() != italic) {
+                        markers += QLatin1Char('*');
+                        italic = fontInfo.italic();
+                    }
+                    if (fontInfo.strikeOut() != strikeOut) {
+                        markers += QLatin1String("~~");
+                        strikeOut = fontInfo.strikeOut();
+                    }
+                    if (fontInfo.underline() != underline) {
+                        // Markdown doesn't support underline, but the parser will treat a single underline
+                        // the same as a single asterisk, and the marked fragment will be rendered in italics.
+                        // That will have to do.
+                        markers += QLatin1Char('_');
+                        underline = fontInfo.underline();
+                    }
+                }
+            }
+            if (wrap && col + markers.length() * 2 + fragmentText.length() > ColumnLimit) {
+                int i = 0;
+                int fragLen = fragmentText.length();
+                bool breakingLine = false;
+                while (i < fragLen) {
+                    int j = i + ColumnLimit - col;
+                    if (j < fragLen) {
+                        int wi = nearestWordWrapIndex(fragmentText, j);
+                        if (wi < 0) {
+                            j = fragLen;
+                        } else {
+                            j = wi;
+                            breakingLine = true;
+                        }
+                    } else {
+                        j = fragLen;
+                        breakingLine = false;
+                    }
+                    QString subfrag = fragmentText.mid(i, j - i);
+                    if (!i) {
+                        m_stream << markers;
+                        col += markers.length();
+                    }
+                    if (col == m_wrappedLineIndent)
+                        maybeEscapeFirstChar(subfrag);
+                    m_stream << subfrag;
+                    if (breakingLine) {
+                        m_stream << Newline << wrapIndentString;
+                        col = m_wrappedLineIndent;
+                    } else {
+                        col += subfrag.length();
+                    }
+                    i = j + 1;
+                }
+            } else {
+                m_stream << markers << fragmentText;
+                col += markers.length() + fragmentText.length();
+            }
+        }
+    }
+    if (mono) {
+        if (startsOrEndsWithBacktick) {
+            m_stream << Space;
+            col += 1;
+        }
+        m_stream << backticks;
+        col += backticks.size();
+    }
+    if (bold) {
+        m_stream << "**";
+        col += 2;
+    }
+    if (italic) {
+        m_stream << "*";
+        col += 1;
+    }
+    if (underline) {
+        m_stream << "_";
+        col += 1;
+    }
+    if (strikeOut) {
+        m_stream << "~~";
+        col += 2;
+    }
+    return col;
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/mirclient/qmirclientbackingstore.h b/src/gui/text/qtextmarkdownwriter_p.h
index 7644c77df2..96ceb445cd 100644
--- a/src/plugins/platforms/mirclient/qmirclientbackingstore.h
+++ b/src/gui/text/qtextmarkdownwriter_p.h
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the plugins of the Qt Toolkit.
+** This file is part of the QtGui module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
@@ -37,38 +37,56 @@
 **
 ****************************************************************************/
 
+#ifndef QTEXTMARKDOWNWRITER_P_H
+#define QTEXTMARKDOWNWRITER_P_H
 
-#ifndef QMIRCLIENTBACKINGSTORE_H
-#define QMIRCLIENTBACKINGSTORE_H
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
 
-#include <qpa/qplatformbackingstore.h>
+#include <QtGui/private/qtguiglobal_p.h>
+#include <QtCore/QTextStream>
 
-class QOpenGLContext;
-class QOpenGLTexture;
-class QOpenGLTextureBlitter;
+#include "qtextdocument_p.h"
+#include "qtextdocumentwriter.h"
+#include "QAbstractTableModel"
 
-class QMirClientBackingStore : public QPlatformBackingStore
+QT_BEGIN_NAMESPACE
+
+class Q_GUI_EXPORT QTextMarkdownWriter
 {
 public:
-    QMirClientBackingStore(QWindow* window);
-    virtual ~QMirClientBackingStore();
+    QTextMarkdownWriter(QTextStream &stream, QTextDocument::MarkdownFeatures features);
+    bool writeAll(const QTextDocument *document);
+    void writeTable(const QAbstractItemModel *table);
+
+    int writeBlock(const QTextBlock &block, bool table, bool ignoreFormat);
+    void writeFrame(const QTextFrame *frame);
 
-    // QPlatformBackingStore methods.
-    void beginPaint(const QRegion&) override;
-    void flush(QWindow* window, const QRegion& region, const QPoint& offset) override;
-    void resize(const QSize& size, const QRegion& staticContents) override;
-    QPaintDevice* paintDevice() override;
-    QImage toImage() const override;
+private:
+    struct ListInfo {
+        bool loose;
+    };
 
-protected:
-    void updateTexture();
+    ListInfo listInfo(QTextList *list);
 
 private:
-    QScopedPointer<QOpenGLContext> mContext;
-    QScopedPointer<QOpenGLTexture> mTexture;
-    QScopedPointer<QOpenGLTextureBlitter> mBlitter;
-    QImage mImage;
-    QRegion mDirty;
+    QTextStream &m_stream;
+    QTextDocument::MarkdownFeatures m_features;
+    QMap<QTextList *, ListInfo> m_listInfo;
+    QString m_linePrefix;
+    int m_wrappedLineIndent = 0;
+    int m_lastListIndent = 1;
+    bool m_doubleNewlineWritten = false;
 };
 
-#endif // QMIRCLIENTBACKINGSTORE_H
+QT_END_NAMESPACE
+
+#endif // QTEXTMARKDOWNWRITER_P_H
diff --git a/src/gui/text/qtextobject.cpp b/src/gui/text/qtextobject.cpp
index 547b21c02e..1302bd66bb 100644
--- a/src/gui/text/qtextobject.cpp
+++ b/src/gui/text/qtextobject.cpp
@@ -678,7 +678,7 @@ QTextFrame::iterator::iterator(QTextFrame *frame, int block, int begin, int end)
 /*!
     Copy constructor. Constructs a copy of the \a other iterator.
 */
-QTextFrame::iterator::iterator(const iterator &other) Q_DECL_NOTHROW
+QTextFrame::iterator::iterator(const iterator &other) noexcept
 {
     f = other.f;
     b = other.b;
@@ -691,7 +691,7 @@ QTextFrame::iterator::iterator(const iterator &other) Q_DECL_NOTHROW
     Assigns \a other to this iterator and returns a reference to
     this iterator.
 */
-QTextFrame::iterator &QTextFrame::iterator::operator=(const iterator &other) Q_DECL_NOTHROW
+QTextFrame::iterator &QTextFrame::iterator::operator=(const iterator &other) noexcept
 {
     f = other.f;
     b = other.b;
diff --git a/src/gui/text/qtextobject.h b/src/gui/text/qtextobject.h
index 694eb729d5..215a76fb4d 100644
--- a/src/gui/text/qtextobject.h
+++ b/src/gui/text/qtextobject.h
@@ -151,11 +151,11 @@ public:
     public:
         iterator(); // ### Qt 6: inline
 #if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-        iterator(const iterator &o) Q_DECL_NOTHROW; // = default
-        iterator &operator=(const iterator &o) Q_DECL_NOTHROW; // = default
-        iterator(iterator &&other) Q_DECL_NOTHROW // = default
+        iterator(const iterator &o) noexcept; // = default
+        iterator &operator=(const iterator &o) noexcept; // = default
+        iterator(iterator &&other) noexcept // = default
         { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(iterator)); }
-        iterator &operator=(iterator &&other) Q_DECL_NOTHROW // = default
+        iterator &operator=(iterator &&other) noexcept // = default
         { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(iterator)); return *this; }
 #endif
 
diff --git a/src/gui/text/qtextobject_p.h b/src/gui/text/qtextobject_p.h
index 81ab023cc3..87c83868da 100644
--- a/src/gui/text/qtextobject_p.h
+++ b/src/gui/text/qtextobject_p.h
@@ -93,7 +93,7 @@ class QTextFramePrivate : public QTextObjectPrivate
     Q_DECLARE_PUBLIC(QTextFrame)
 public:
     QTextFramePrivate(QTextDocument *doc)
-        : QTextObjectPrivate(doc), fragment_start(0), fragment_end(0), parentFrame(0), layoutData(0)
+        : QTextObjectPrivate(doc), fragment_start(0), fragment_end(0), parentFrame(nullptr), layoutData(nullptr)
     {
     }
     virtual void fragmentAdded(QChar type, uint fragment);
diff --git a/src/gui/text/qtextodfwriter.cpp b/src/gui/text/qtextodfwriter.cpp
index a62e7e425a..8eaad403d0 100644
--- a/src/gui/text/qtextodfwriter.cpp
+++ b/src/gui/text/qtextodfwriter.cpp
@@ -1007,7 +1007,7 @@ bool QTextOdfWriter::writeAll()
 
     // add objects for lists, frames and tables
     const QVector<QTextFormat> allFormats = m_document->allFormats();
-    const QList<int> copy = formats.toList();
+    const QList<int> copy = formats.values();
     for (auto index : copy) {
         QTextObject *object = m_document->objectForFormat(allFormats[index]);
         if (object) {
diff --git a/src/gui/text/qtexttable_p.h b/src/gui/text/qtexttable_p.h
index c969e1d5bc..5c05611009 100644
--- a/src/gui/text/qtexttable_p.h
+++ b/src/gui/text/qtexttable_p.h
@@ -61,7 +61,7 @@ class QTextTablePrivate : public QTextFramePrivate
 {
     Q_DECLARE_PUBLIC(QTextTable)
 public:
-    QTextTablePrivate(QTextDocument *document) : QTextFramePrivate(document), grid(0), nRows(0), nCols(0), dirty(true), blockFragmentUpdates(false) {}
+    QTextTablePrivate(QTextDocument *document) : QTextFramePrivate(document), grid(nullptr), nRows(0), nCols(0), dirty(true), blockFragmentUpdates(false) {}
     ~QTextTablePrivate();
 
     static QTextTable *createTable(QTextDocumentPrivate *, int pos, int rows, int cols, const QTextTableFormat &tableFormat);
diff --git a/src/gui/text/qzipreader_p.h b/src/gui/text/qzipreader_p.h
index 378072b366..6fec8d7719 100644
--- a/src/gui/text/qzipreader_p.h
+++ b/src/gui/text/qzipreader_p.h
@@ -79,11 +79,11 @@ public:
 
     struct FileInfo
     {
-        FileInfo() Q_DECL_NOTHROW
+        FileInfo() noexcept
             : isDir(false), isFile(false), isSymLink(false), crc(0), size(0)
         {}
 
-        bool isValid() const Q_DECL_NOTHROW { return isDir || isFile || isSymLink; }
+        bool isValid() const noexcept { return isDir || isFile || isSymLink; }
 
         QString filePath;
         uint isDir : 1;
diff --git a/src/gui/text/text.pri b/src/gui/text/text.pri
index abe20abe02..5e97b312f1 100644
--- a/src/gui/text/text.pri
+++ b/src/gui/text/text.pri
@@ -97,6 +97,25 @@ qtConfig(textodfwriter) {
         text/qzip.cpp
 }
 
+qtConfig(textmarkdownreader) {
+    qtConfig(system-textmarkdownreader) {
+        QMAKE_USE += libmd4c
+    } else {
+        include($$PWD/../../3rdparty/md4c.pri)
+    }
+    HEADERS += \
+        text/qtextmarkdownimporter_p.h
+    SOURCES += \
+        text/qtextmarkdownimporter.cpp
+}
+
+qtConfig(textmarkdownwriter) {
+    HEADERS += \
+        text/qtextmarkdownwriter_p.h
+    SOURCES += \
+        text/qtextmarkdownwriter.cpp
+}
+
 qtConfig(cssparser) {
     HEADERS += \
         text/qcssparser_p.h
diff --git a/src/gui/util/qgridlayoutengine_p.h b/src/gui/util/qgridlayoutengine_p.h
index 5f0cc5da73..5f0e84edb1 100644
--- a/src/gui/util/qgridlayoutengine_p.h
+++ b/src/gui/util/qgridlayoutengine_p.h
@@ -180,7 +180,7 @@ public:
             t = &q_minimumAscent;
             break;
         default:
-            t = 0;
+            t = nullptr;
             break;
         }
         return *t;
@@ -205,7 +205,7 @@ public:
             t = &q_minimumAscent;
             break;
         default:
-            t = 0;
+            t = nullptr;
             break;
         }
         return *t;
@@ -276,7 +276,7 @@ class Q_GUI_EXPORT QGridLayoutItem
 {
 public:
     QGridLayoutItem(int row, int column, int rowSpan = 1, int columnSpan = 1,
-                    Qt::Alignment alignment = 0);
+                    Qt::Alignment alignment = nullptr);
     virtual ~QGridLayoutItem() {}
 
     inline int firstRow() const { return q_firstRows[Ver]; }
@@ -339,7 +339,7 @@ private:
 class Q_GUI_EXPORT QGridLayoutEngine
 {
 public:
-    QGridLayoutEngine(Qt::Alignment defaultAlignment = Qt::Alignment(0), bool snapToPixelGrid = false);
+    QGridLayoutEngine(Qt::Alignment defaultAlignment = Qt::Alignment(nullptr), bool snapToPixelGrid = false);
     inline ~QGridLayoutEngine() { qDeleteAll(q_items); }
 
     int rowCount(Qt::Orientation orientation) const;
diff --git a/src/gui/util/qshaderformat.cpp b/src/gui/util/qshaderformat.cpp
index e4e3718199..ea86dd6ca5 100644
--- a/src/gui/util/qshaderformat.cpp
+++ b/src/gui/util/qshaderformat.cpp
@@ -41,59 +41,59 @@
 
 QT_BEGIN_NAMESPACE
 
-QShaderFormat::QShaderFormat() Q_DECL_NOTHROW
+QShaderFormat::QShaderFormat() noexcept
     : m_api(NoApi)
     , m_shaderType(Fragment)
 {
 }
 
-QShaderFormat::Api QShaderFormat::api() const Q_DECL_NOTHROW
+QShaderFormat::Api QShaderFormat::api() const noexcept
 {
     return m_api;
 }
 
-void QShaderFormat::setApi(QShaderFormat::Api api) Q_DECL_NOTHROW
+void QShaderFormat::setApi(QShaderFormat::Api api) noexcept
 {
     m_api = api;
 }
 
-QVersionNumber QShaderFormat::version() const Q_DECL_NOTHROW
+QVersionNumber QShaderFormat::version() const noexcept
 {
     return m_version;
 }
 
-void QShaderFormat::setVersion(const QVersionNumber &version) Q_DECL_NOTHROW
+void QShaderFormat::setVersion(const QVersionNumber &version) noexcept
 {
     m_version = version;
 }
 
-QStringList QShaderFormat::extensions() const Q_DECL_NOTHROW
+QStringList QShaderFormat::extensions() const noexcept
 {
     return m_extensions;
 }
 
-void QShaderFormat::setExtensions(const QStringList &extensions) Q_DECL_NOTHROW
+void QShaderFormat::setExtensions(const QStringList &extensions) noexcept
 {
     m_extensions = extensions;
     m_extensions.sort();
 }
 
-QString QShaderFormat::vendor() const Q_DECL_NOTHROW
+QString QShaderFormat::vendor() const noexcept
 {
     return m_vendor;
 }
 
-void QShaderFormat::setVendor(const QString &vendor) Q_DECL_NOTHROW
+void QShaderFormat::setVendor(const QString &vendor) noexcept
 {
     m_vendor = vendor;
 }
 
-bool QShaderFormat::isValid() const Q_DECL_NOTHROW
+bool QShaderFormat::isValid() const noexcept
 {
     return m_api != NoApi && m_version.majorVersion() > 0;
 }
 
-bool QShaderFormat::supports(const QShaderFormat &other) const Q_DECL_NOTHROW
+bool QShaderFormat::supports(const QShaderFormat &other) const noexcept
 {
     if (!isValid() || !other.isValid())
         return false;
@@ -133,7 +133,7 @@ void QShaderFormat::setShaderType(QShaderFormat::ShaderType shaderType) Q_DECL_N
     m_shaderType = shaderType;
 }
 
-bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) Q_DECL_NOTHROW
+bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept
 {
     return lhs.api() == rhs.api()
         && lhs.version() == rhs.version()
diff --git a/src/gui/util/qshaderformat_p.h b/src/gui/util/qshaderformat_p.h
index 8d5e83bd22..c50d7d5729 100644
--- a/src/gui/util/qshaderformat_p.h
+++ b/src/gui/util/qshaderformat_p.h
@@ -78,22 +78,22 @@ public:
         Compute
     };
 
-    Q_GUI_EXPORT QShaderFormat() Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QShaderFormat() noexcept;
 
-    Q_GUI_EXPORT Api api() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setApi(Api api) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT Api api() const noexcept;
+    Q_GUI_EXPORT void setApi(Api api) noexcept;
 
-    Q_GUI_EXPORT QVersionNumber version() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setVersion(const QVersionNumber &version) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QVersionNumber version() const noexcept;
+    Q_GUI_EXPORT void setVersion(const QVersionNumber &version) noexcept;
 
-    Q_GUI_EXPORT QStringList extensions() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setExtensions(const QStringList &extensions) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QStringList extensions() const noexcept;
+    Q_GUI_EXPORT void setExtensions(const QStringList &extensions) noexcept;
 
-    Q_GUI_EXPORT QString vendor() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setVendor(const QString &vendor) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QString vendor() const noexcept;
+    Q_GUI_EXPORT void setVendor(const QString &vendor) noexcept;
 
-    Q_GUI_EXPORT bool isValid() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT bool supports(const QShaderFormat &other) const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT bool isValid() const noexcept;
+    Q_GUI_EXPORT bool supports(const QShaderFormat &other) const noexcept;
 
     Q_GUI_EXPORT ShaderType shaderType() const Q_DECL_NOTHROW;
     Q_GUI_EXPORT void setShaderType(ShaderType shaderType) Q_DECL_NOTHROW;
@@ -106,9 +106,9 @@ private:
     ShaderType m_shaderType;
 };
 
-Q_GUI_EXPORT bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) Q_DECL_NOTHROW;
+Q_GUI_EXPORT bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept;
 
-inline bool operator!=(const QShaderFormat &lhs, const QShaderFormat &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept
 {
     return !(lhs == rhs);
 }
diff --git a/src/gui/util/qshadergraph.cpp b/src/gui/util/qshadergraph.cpp
index 40b85ac469..b05b710713 100644
--- a/src/gui/util/qshadergraph.cpp
+++ b/src/gui/util/qshadergraph.cpp
@@ -118,12 +118,12 @@ namespace
     }
 }
 
-QUuid QShaderGraph::Statement::uuid() const Q_DECL_NOTHROW
+QUuid QShaderGraph::Statement::uuid() const noexcept
 {
     return node.uuid();
 }
 
-int QShaderGraph::Statement::portIndex(QShaderNodePort::Direction direction, const QString &portName) const Q_DECL_NOTHROW
+int QShaderGraph::Statement::portIndex(QShaderNodePort::Direction direction, const QString &portName) const noexcept
 {
     const QVector<QShaderNodePort> ports = node.ports();
     int index = 0;
@@ -150,7 +150,7 @@ void QShaderGraph::removeNode(const QShaderNode &node)
         m_nodes.erase(it);
 }
 
-QVector<QShaderNode> QShaderGraph::nodes() const Q_DECL_NOTHROW
+QVector<QShaderNode> QShaderGraph::nodes() const noexcept
 {
     return m_nodes;
 }
@@ -167,7 +167,7 @@ void QShaderGraph::removeEdge(const QShaderGraph::Edge &edge)
     m_edges.removeAll(edge);
 }
 
-QVector<QShaderGraph::Edge> QShaderGraph::edges() const Q_DECL_NOTHROW
+QVector<QShaderGraph::Edge> QShaderGraph::edges() const noexcept
 {
     return m_edges;
 }
@@ -244,7 +244,7 @@ QVector<QShaderGraph::Statement> QShaderGraph::createStatements(const QStringLis
     return result;
 }
 
-bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) Q_DECL_NOTHROW
+bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept
 {
     return lhs.sourceNodeUuid == rhs.sourceNodeUuid
         && lhs.sourcePortName == rhs.sourcePortName
@@ -252,7 +252,7 @@ bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) Q_
         && lhs.targetPortName == rhs.targetPortName;
 }
 
-bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) Q_DECL_NOTHROW
+bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept
 {
     return lhs.inputs == rhs.inputs
         && lhs.outputs == rhs.outputs
diff --git a/src/gui/util/qshadergraph_p.h b/src/gui/util/qshadergraph_p.h
index 756e1b2da2..9367a3783c 100644
--- a/src/gui/util/qshadergraph_p.h
+++ b/src/gui/util/qshadergraph_p.h
@@ -73,8 +73,8 @@ public:
     class Statement
     {
     public:
-        Q_GUI_EXPORT QUuid uuid() const Q_DECL_NOTHROW;
-        Q_GUI_EXPORT int portIndex(QShaderNodePort::Direction direction, const QString &portName) const Q_DECL_NOTHROW;
+        Q_GUI_EXPORT QUuid uuid() const noexcept;
+        Q_GUI_EXPORT int portIndex(QShaderNodePort::Direction direction, const QString &portName) const noexcept;
 
         QShaderNode node;
         QVector<int> inputs;
@@ -83,11 +83,11 @@ public:
 
     Q_GUI_EXPORT void addNode(const QShaderNode &node);
     Q_GUI_EXPORT void removeNode(const QShaderNode &node);
-    Q_GUI_EXPORT QVector<QShaderNode> nodes() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QVector<QShaderNode> nodes() const noexcept;
 
     Q_GUI_EXPORT void addEdge(const Edge &edge);
     Q_GUI_EXPORT void removeEdge(const Edge &edge);
-    Q_GUI_EXPORT QVector<Edge> edges() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QVector<Edge> edges() const noexcept;
 
     Q_GUI_EXPORT QVector<Statement> createStatements(const QStringList &enabledLayers = QStringList()) const;
 
@@ -96,16 +96,16 @@ private:
     QVector<Edge> m_edges;
 };
 
-Q_GUI_EXPORT bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) Q_DECL_NOTHROW;
+Q_GUI_EXPORT bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept;
 
-inline bool operator!=(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept
 {
     return !(lhs == rhs);
 }
 
-Q_GUI_EXPORT bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) Q_DECL_NOTHROW;
+Q_GUI_EXPORT bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept;
 
-inline bool operator!=(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept
 {
     return !(lhs == rhs);
 }
diff --git a/src/gui/util/qshadergraphloader.cpp b/src/gui/util/qshadergraphloader.cpp
index b9d8318655..a393e876e0 100644
--- a/src/gui/util/qshadergraphloader.cpp
+++ b/src/gui/util/qshadergraphloader.cpp
@@ -52,29 +52,29 @@ QT_BEGIN_NAMESPACE
 
 void qt_register_ShaderLanguage_enums();
 
-QShaderGraphLoader::QShaderGraphLoader() Q_DECL_NOTHROW
+QShaderGraphLoader::QShaderGraphLoader() noexcept
     : m_status(Null),
       m_device(nullptr)
 {
     qt_register_ShaderLanguage_enums();
 }
 
-QShaderGraphLoader::Status QShaderGraphLoader::status() const Q_DECL_NOTHROW
+QShaderGraphLoader::Status QShaderGraphLoader::status() const noexcept
 {
     return m_status;
 }
 
-QShaderGraph QShaderGraphLoader::graph() const Q_DECL_NOTHROW
+QShaderGraph QShaderGraphLoader::graph() const noexcept
 {
     return m_graph;
 }
 
-QIODevice *QShaderGraphLoader::device() const Q_DECL_NOTHROW
+QIODevice *QShaderGraphLoader::device() const noexcept
 {
     return m_device;
 }
 
-void QShaderGraphLoader::setDevice(QIODevice *device) Q_DECL_NOTHROW
+void QShaderGraphLoader::setDevice(QIODevice *device) noexcept
 {
     m_device = device;
     m_graph = QShaderGraph();
@@ -83,12 +83,12 @@ void QShaderGraphLoader::setDevice(QIODevice *device) Q_DECL_NOTHROW
              : Error;
 }
 
-QHash<QString, QShaderNode> QShaderGraphLoader::prototypes() const Q_DECL_NOTHROW
+QHash<QString, QShaderNode> QShaderGraphLoader::prototypes() const noexcept
 {
     return m_prototypes;
 }
 
-void QShaderGraphLoader::setPrototypes(const QHash<QString, QShaderNode> &prototypes) Q_DECL_NOTHROW
+void QShaderGraphLoader::setPrototypes(const QHash<QString, QShaderNode> &prototypes) noexcept
 {
     m_prototypes = prototypes;
 }
diff --git a/src/gui/util/qshadergraphloader_p.h b/src/gui/util/qshadergraphloader_p.h
index 97cbd8d18c..e7aa19fa2d 100644
--- a/src/gui/util/qshadergraphloader_p.h
+++ b/src/gui/util/qshadergraphloader_p.h
@@ -69,16 +69,16 @@ public:
         Error
     };
 
-    Q_GUI_EXPORT QShaderGraphLoader() Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QShaderGraphLoader() noexcept;
 
-    Q_GUI_EXPORT Status status() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT QShaderGraph graph() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT Status status() const noexcept;
+    Q_GUI_EXPORT QShaderGraph graph() const noexcept;
 
-    Q_GUI_EXPORT QIODevice *device() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setDevice(QIODevice *device) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QIODevice *device() const noexcept;
+    Q_GUI_EXPORT void setDevice(QIODevice *device) noexcept;
 
-    Q_GUI_EXPORT QHash<QString, QShaderNode> prototypes() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setPrototypes(const QHash<QString, QShaderNode> &prototypes) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QHash<QString, QShaderNode> prototypes() const noexcept;
+    Q_GUI_EXPORT void setPrototypes(const QHash<QString, QShaderNode> &prototypes) noexcept;
 
     Q_GUI_EXPORT void load();
 
diff --git a/src/gui/util/qshadernode.cpp b/src/gui/util/qshadernode.cpp
index e570880d1d..547e5c51a8 100644
--- a/src/gui/util/qshadernode.cpp
+++ b/src/gui/util/qshadernode.cpp
@@ -41,7 +41,7 @@
 
 QT_BEGIN_NAMESPACE
 
-QShaderNode::Type QShaderNode::type() const Q_DECL_NOTHROW
+QShaderNode::Type QShaderNode::type() const noexcept
 {
     int inputCount = 0;
     int outputCount = 0;
@@ -62,27 +62,27 @@ QShaderNode::Type QShaderNode::type() const Q_DECL_NOTHROW
          : Function;
 }
 
-QUuid QShaderNode::uuid() const Q_DECL_NOTHROW
+QUuid QShaderNode::uuid() const noexcept
 {
     return m_uuid;
 }
 
-void QShaderNode::setUuid(const QUuid &uuid) Q_DECL_NOTHROW
+void QShaderNode::setUuid(const QUuid &uuid) noexcept
 {
     m_uuid = uuid;
 }
 
-QStringList QShaderNode::layers() const Q_DECL_NOTHROW
+QStringList QShaderNode::layers() const noexcept
 {
     return m_layers;
 }
 
-void QShaderNode::setLayers(const QStringList &layers) Q_DECL_NOTHROW
+void QShaderNode::setLayers(const QStringList &layers) noexcept
 {
     m_layers = layers;
 }
 
-QVector<QShaderNodePort> QShaderNode::ports() const Q_DECL_NOTHROW
+QVector<QShaderNodePort> QShaderNode::ports() const noexcept
 {
     return m_ports;
 }
@@ -157,13 +157,13 @@ QShaderNode::Rule QShaderNode::rule(const QShaderFormat &format) const
     return it != m_rules.crend() ? it->second : Rule();
 }
 
-QShaderNode::Rule::Rule(const QByteArray &subs, const QByteArrayList &snippets) Q_DECL_NOTHROW
+QShaderNode::Rule::Rule(const QByteArray &subs, const QByteArrayList &snippets) noexcept
     : substitution(subs),
       headerSnippets(snippets)
 {
 }
 
-bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) Q_DECL_NOTHROW
+bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept
 {
     return lhs.substitution == rhs.substitution
         && lhs.headerSnippets == rhs.headerSnippets;
diff --git a/src/gui/util/qshadernode_p.h b/src/gui/util/qshadernode_p.h
index 12ff9b2a2c..c3d149d8a5 100644
--- a/src/gui/util/qshadernode_p.h
+++ b/src/gui/util/qshadernode_p.h
@@ -73,21 +73,21 @@ public:
     class Rule
     {
     public:
-        Q_GUI_EXPORT Rule(const QByteArray &substitution = QByteArray(), const QByteArrayList &headerSnippets = QByteArrayList()) Q_DECL_NOTHROW;
+        Q_GUI_EXPORT Rule(const QByteArray &substitution = QByteArray(), const QByteArrayList &headerSnippets = QByteArrayList()) noexcept;
 
         QByteArray substitution;
         QByteArrayList headerSnippets;
     };
 
-    Q_GUI_EXPORT Type type() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT Type type() const noexcept;
 
-    Q_GUI_EXPORT QUuid uuid() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setUuid(const QUuid &uuid) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QUuid uuid() const noexcept;
+    Q_GUI_EXPORT void setUuid(const QUuid &uuid) noexcept;
 
-    Q_GUI_EXPORT QStringList layers() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setLayers(const QStringList &layers) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QStringList layers() const noexcept;
+    Q_GUI_EXPORT void setLayers(const QStringList &layers) noexcept;
 
-    Q_GUI_EXPORT QVector<QShaderNodePort> ports() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QVector<QShaderNodePort> ports() const noexcept;
     Q_GUI_EXPORT void addPort(const QShaderNodePort &port);
     Q_GUI_EXPORT void removePort(const QShaderNodePort &port);
 
@@ -110,9 +110,9 @@ private:
     QVector<QPair<QShaderFormat, QShaderNode::Rule>> m_rules;
 };
 
-Q_GUI_EXPORT bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) Q_DECL_NOTHROW;
+Q_GUI_EXPORT bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept;
 
-inline bool operator!=(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept
 {
     return !(lhs == rhs);
 }
diff --git a/src/gui/util/qshadernodeport.cpp b/src/gui/util/qshadernodeport.cpp
index 03646a9467..15dbc4160e 100644
--- a/src/gui/util/qshadernodeport.cpp
+++ b/src/gui/util/qshadernodeport.cpp
@@ -41,12 +41,12 @@
 
 QT_BEGIN_NAMESPACE
 
-QShaderNodePort::QShaderNodePort() Q_DECL_NOTHROW
+QShaderNodePort::QShaderNodePort() noexcept
     : direction(Output)
 {
 }
 
-bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) Q_DECL_NOTHROW
+bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept
 {
     return lhs.direction == rhs.direction
         && lhs.name == rhs.name;
diff --git a/src/gui/util/qshadernodeport_p.h b/src/gui/util/qshadernodeport_p.h
index cfdaf05017..c69ba23a3f 100644
--- a/src/gui/util/qshadernodeport_p.h
+++ b/src/gui/util/qshadernodeport_p.h
@@ -66,15 +66,15 @@ public:
         Output
     };
 
-    Q_GUI_EXPORT QShaderNodePort() Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QShaderNodePort() noexcept;
 
     QShaderNodePort::Direction direction;
     QString name;
 };
 
-Q_GUI_EXPORT bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) Q_DECL_NOTHROW;
+Q_GUI_EXPORT bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept;
 
-inline bool operator!=(const QShaderNodePort &lhs, const QShaderNodePort &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept
 {
     return !(lhs == rhs);
 }
diff --git a/src/gui/util/qshadernodesloader.cpp b/src/gui/util/qshadernodesloader.cpp
index 5369e8bd4c..922479332c 100644
--- a/src/gui/util/qshadernodesloader.cpp
+++ b/src/gui/util/qshadernodesloader.cpp
@@ -48,28 +48,28 @@
 
 QT_BEGIN_NAMESPACE
 
-QShaderNodesLoader::QShaderNodesLoader() Q_DECL_NOTHROW
+QShaderNodesLoader::QShaderNodesLoader() noexcept
     : m_status(Null),
       m_device(nullptr)
 {
 }
 
-QShaderNodesLoader::Status QShaderNodesLoader::status() const Q_DECL_NOTHROW
+QShaderNodesLoader::Status QShaderNodesLoader::status() const noexcept
 {
     return m_status;
 }
 
-QHash<QString, QShaderNode> QShaderNodesLoader::nodes() const Q_DECL_NOTHROW
+QHash<QString, QShaderNode> QShaderNodesLoader::nodes() const noexcept
 {
     return m_nodes;
 }
 
-QIODevice *QShaderNodesLoader::device() const Q_DECL_NOTHROW
+QIODevice *QShaderNodesLoader::device() const noexcept
 {
     return m_device;
 }
 
-void QShaderNodesLoader::setDevice(QIODevice *device) Q_DECL_NOTHROW
+void QShaderNodesLoader::setDevice(QIODevice *device) noexcept
 {
     m_device = device;
     m_nodes.clear();
diff --git a/src/gui/util/qshadernodesloader_p.h b/src/gui/util/qshadernodesloader_p.h
index 0bec871857..432d7d4494 100644
--- a/src/gui/util/qshadernodesloader_p.h
+++ b/src/gui/util/qshadernodesloader_p.h
@@ -69,13 +69,13 @@ public:
         Error
     };
 
-    Q_GUI_EXPORT QShaderNodesLoader() Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QShaderNodesLoader() noexcept;
 
-    Q_GUI_EXPORT Status status() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT QHash<QString, QShaderNode> nodes() const Q_DECL_NOTHROW;
+    Q_GUI_EXPORT Status status() const noexcept;
+    Q_GUI_EXPORT QHash<QString, QShaderNode> nodes() const noexcept;
 
-    Q_GUI_EXPORT QIODevice *device() const Q_DECL_NOTHROW;
-    Q_GUI_EXPORT void setDevice(QIODevice *device) Q_DECL_NOTHROW;
+    Q_GUI_EXPORT QIODevice *device() const noexcept;
+    Q_GUI_EXPORT void setDevice(QIODevice *device) noexcept;
 
     Q_GUI_EXPORT void load();
     Q_GUI_EXPORT void load(const QJsonObject &prototypesObject);
diff --git a/src/gui/util/qvalidator.h b/src/gui/util/qvalidator.h
index cc7cbcb559..f0e72e3814 100644
--- a/src/gui/util/qvalidator.h
+++ b/src/gui/util/qvalidator.h
@@ -69,6 +69,7 @@ public:
         Intermediate,
         Acceptable
     };
+    Q_ENUM(State)
 
     void setLocale(const QLocale &locale);
     QLocale locale() const;
diff --git a/src/gui/vulkan/qvulkaninstance.h b/src/gui/vulkan/qvulkaninstance.h
index 57459e458c..f28975f911 100644
--- a/src/gui/vulkan/qvulkaninstance.h
+++ b/src/gui/vulkan/qvulkaninstance.h
@@ -84,14 +84,14 @@ struct QVulkanLayer
 };
 Q_DECLARE_TYPEINFO(QVulkanLayer, Q_MOVABLE_TYPE);
 
-inline bool operator==(const QVulkanLayer &lhs, const QVulkanLayer &rhs) Q_DECL_NOTHROW
+inline bool operator==(const QVulkanLayer &lhs, const QVulkanLayer &rhs) noexcept
 {
     return lhs.name == rhs.name && lhs.version == rhs.version && lhs.specVersion == rhs.specVersion;
 }
-inline bool operator!=(const QVulkanLayer &lhs, const QVulkanLayer &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QVulkanLayer &lhs, const QVulkanLayer &rhs) noexcept
 { return !(lhs == rhs); }
 
-inline uint qHash(const QVulkanLayer &key, uint seed = 0) Q_DECL_NOTHROW
+inline uint qHash(const QVulkanLayer &key, uint seed = 0) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.name);
@@ -107,14 +107,14 @@ struct QVulkanExtension
 };
 Q_DECLARE_TYPEINFO(QVulkanExtension, Q_MOVABLE_TYPE);
 
-inline bool operator==(const QVulkanExtension &lhs, const QVulkanExtension &rhs) Q_DECL_NOTHROW
+inline bool operator==(const QVulkanExtension &lhs, const QVulkanExtension &rhs) noexcept
 {
     return lhs.name == rhs.name && lhs.version == rhs.version;
 }
-inline bool operator!=(const QVulkanExtension &lhs, const QVulkanExtension &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QVulkanExtension &lhs, const QVulkanExtension &rhs) noexcept
 { return !(lhs == rhs); }
 
-inline uint qHash(const QVulkanExtension &key, uint seed = 0) Q_DECL_NOTHROW
+inline uint qHash(const QVulkanExtension &key, uint seed = 0) noexcept
 {
     QtPrivate::QHashCombine hash;
     seed = hash(seed, key.name);
diff --git a/src/gui/vulkan/qvulkanwindow_p.h b/src/gui/vulkan/qvulkanwindow_p.h
index c6a772bc31..fb374a5564 100644
--- a/src/gui/vulkan/qvulkanwindow_p.h
+++ b/src/gui/vulkan/qvulkanwindow_p.h
@@ -97,7 +97,7 @@ public:
     int physDevIndex = 0;
     QVector<VkPhysicalDevice> physDevs;
     QVector<VkPhysicalDeviceProperties> physDevProps;
-    QVulkanWindow::Flags flags = 0;
+    QVulkanWindow::Flags flags = nullptr;
     QByteArrayList requestedDevExtensions;
     QHash<VkPhysicalDevice, QVulkanInfoVector<QVulkanExtension> > supportedDevExtensions;
     QVector<VkFormat> requestedColorFormats;
diff --git a/src/network/access/qabstractnetworkcache.h b/src/network/access/qabstractnetworkcache.h
index 678bae2d6e..e357dfe58f 100644
--- a/src/network/access/qabstractnetworkcache.h
+++ b/src/network/access/qabstractnetworkcache.h
@@ -67,12 +67,10 @@ public:
     QNetworkCacheMetaData(const QNetworkCacheMetaData &other);
     ~QNetworkCacheMetaData();
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkCacheMetaData &operator=(QNetworkCacheMetaData &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkCacheMetaData &operator=(QNetworkCacheMetaData &&other) noexcept { swap(other); return *this; }
     QNetworkCacheMetaData &operator=(const QNetworkCacheMetaData &other);
 
-    void swap(QNetworkCacheMetaData &other) Q_DECL_NOTHROW
+    void swap(QNetworkCacheMetaData &other) noexcept
     { qSwap(d, other.d); }
 
     bool operator==(const QNetworkCacheMetaData &other) const;
diff --git a/src/network/access/qftp.cpp b/src/network/access/qftp.cpp
index 4e399f018f..b6b721030b 100644
--- a/src/network/access/qftp.cpp
+++ b/src/network/access/qftp.cpp
@@ -2124,6 +2124,17 @@ void QFtp::abort()
 
 /*!
     \internal
+    Clears the last error.
+
+    \sa currentCommand()
+*/
+void QFtp::clearError()
+{
+    d_func()->error = NoError;
+}
+
+/*!
+    \internal
     Returns the identifier of the FTP command that is being executed
     or 0 if there is no command being executed.
 
diff --git a/src/network/access/qftp_p.h b/src/network/access/qftp_p.h
index 0516c3d1f9..a55429933b 100644
--- a/src/network/access/qftp_p.h
+++ b/src/network/access/qftp_p.h
@@ -67,7 +67,7 @@ class Q_AUTOTEST_EXPORT QFtp : public QObject
     Q_OBJECT
 
 public:
-    explicit QFtp(QObject *parent = 0);
+    explicit QFtp(QObject *parent = nullptr);
     virtual ~QFtp();
 
     enum State {
@@ -118,7 +118,7 @@ public:
     int setTransferMode(TransferMode mode);
     int list(const QString &dir = QString());
     int cd(const QString &dir);
-    int get(const QString &file, QIODevice *dev=0, TransferType type = Binary);
+    int get(const QString &file, QIODevice *dev=nullptr, TransferType type = Binary);
     int put(const QByteArray &data, const QString &file, TransferType type = Binary);
     int put(QIODevice *dev, const QString &file, TransferType type = Binary);
     int remove(const QString &file);
@@ -157,6 +157,9 @@ Q_SIGNALS:
     void commandFinished(int, bool);
     void done(bool);
 
+protected:
+    void clearError();
+
 private:
     Q_DISABLE_COPY_MOVE(QFtp)
     Q_DECLARE_PRIVATE(QFtp)
diff --git a/src/network/access/qhstspolicy.h b/src/network/access/qhstspolicy.h
index 176a8fa635..f1b2ee99e5 100644
--- a/src/network/access/qhstspolicy.h
+++ b/src/network/access/qhstspolicy.h
@@ -65,10 +65,10 @@ public:
                 QUrl::ParsingMode mode = QUrl::DecodedMode);
     QHstsPolicy(const QHstsPolicy &rhs);
     QHstsPolicy &operator=(const QHstsPolicy &rhs);
-    QHstsPolicy &operator=(QHstsPolicy &&other) Q_DECL_NOTHROW { swap(other); return *this; }
+    QHstsPolicy &operator=(QHstsPolicy &&other) noexcept { swap(other); return *this; }
     ~QHstsPolicy();
 
-    void swap(QHstsPolicy &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QHstsPolicy &other) noexcept { qSwap(d, other.d); }
 
     void setHost(const QString &host, QUrl::ParsingMode mode = QUrl::DecodedMode);
     QString host(QUrl::ComponentFormattingOptions options = QUrl::FullyDecoded) const;
diff --git a/src/network/access/qhttpmultipart.h b/src/network/access/qhttpmultipart.h
index 78585a704d..56db83779a 100644
--- a/src/network/access/qhttpmultipart.h
+++ b/src/network/access/qhttpmultipart.h
@@ -60,12 +60,10 @@ public:
     QHttpPart();
     QHttpPart(const QHttpPart &other);
     ~QHttpPart();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QHttpPart &operator=(QHttpPart &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QHttpPart &operator=(QHttpPart &&other) noexcept { swap(other); return *this; }
     QHttpPart &operator=(const QHttpPart &other);
 
-    void swap(QHttpPart &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QHttpPart &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QHttpPart &other) const;
     inline bool operator!=(const QHttpPart &other) const
diff --git a/src/network/access/qhttpmultipart_p.h b/src/network/access/qhttpmultipart_p.h
index 363e0b346c..ead1eadf3b 100644
--- a/src/network/access/qhttpmultipart_p.h
+++ b/src/network/access/qhttpmultipart_p.h
@@ -64,7 +64,7 @@ QT_BEGIN_NAMESPACE
 class QHttpPartPrivate: public QSharedData, public QNetworkHeadersPrivate
 {
 public:
-    inline QHttpPartPrivate() : bodyDevice(0), headerCreated(false), readPointer(0)
+    inline QHttpPartPrivate() : bodyDevice(nullptr), headerCreated(false), readPointer(0)
     {
     }
     ~QHttpPartPrivate()
diff --git a/src/network/access/qhttpnetworkconnection.cpp b/src/network/access/qhttpnetworkconnection.cpp
index 681d84fee8..cb4c722eb5 100644
--- a/src/network/access/qhttpnetworkconnection.cpp
+++ b/src/network/access/qhttpnetworkconnection.cpp
@@ -398,11 +398,12 @@ void QHttpNetworkConnectionPrivate::copyCredentials(int fromChannel, QAuthentica
 {
     Q_ASSERT(auth);
 
-    // NTLM is a multi phase authentication. Copying credentials between authenticators would mess things up.
+    // NTLM and Negotiate do multi-phase authentication.
+    // Copying credentialsbetween authenticators would mess things up.
     if (fromChannel >= 0) {
-        if (!isProxy && channels[fromChannel].authMethod == QAuthenticatorPrivate::Ntlm)
-            return;
-        if (isProxy && channels[fromChannel].proxyAuthMethod == QAuthenticatorPrivate::Ntlm)
+        const QHttpNetworkConnectionChannel &channel = channels[fromChannel];
+        const QAuthenticatorPrivate::Method method = isProxy ? channel.proxyAuthMethod : channel.authMethod;
+        if (method == QAuthenticatorPrivate::Ntlm || method == QAuthenticatorPrivate::Negotiate)
             return;
     }
 
@@ -592,7 +593,7 @@ void QHttpNetworkConnectionPrivate::createAuthorization(QAbstractSocket *socket,
         if ((channels[i].authMethod != QAuthenticatorPrivate::Ntlm && request.headerField("Authorization").isEmpty()) || channels[i].lastStatus == 401) {
             QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(channels[i].authenticator);
             if (priv && priv->method != QAuthenticatorPrivate::None) {
-                QByteArray response = priv->calculateResponse(request.methodName(), request.uri(false));
+                QByteArray response = priv->calculateResponse(request.methodName(), request.uri(false), request.url().host());
                 request.setHeaderField("Authorization", response);
                 channels[i].authenticationCredentialsSent = true;
             }
@@ -604,7 +605,7 @@ void QHttpNetworkConnectionPrivate::createAuthorization(QAbstractSocket *socket,
         if (!(channels[i].proxyAuthMethod == QAuthenticatorPrivate::Ntlm && channels[i].lastStatus != 407)) {
             QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(channels[i].proxyAuthenticator);
             if (priv && priv->method != QAuthenticatorPrivate::None) {
-                QByteArray response = priv->calculateResponse(request.methodName(), request.uri(false));
+                QByteArray response = priv->calculateResponse(request.methodName(), request.uri(false), networkProxy.hostName());
                 request.setHeaderField("Proxy-Authorization", response);
                 channels[i].proxyCredentialsSent = true;
             }
@@ -1317,8 +1318,12 @@ QHttpNetworkConnection::QHttpNetworkConnection(const QString &hostName, quint16
     : QObject(*(new QHttpNetworkConnectionPrivate(hostName, port, encrypt, connectionType)), parent)
 {
     Q_D(QHttpNetworkConnection);
-    d->networkSession = qMove(networkSession);
+    d->networkSession = std::move(networkSession);
     d->init();
+    if (QNetworkStatusMonitor::isEnabled()) {
+        connect(&d->connectionMonitor, &QNetworkConnectionMonitor::reachabilityChanged,
+                this, &QHttpNetworkConnection::onlineStateChanged, Qt::QueuedConnection);
+    }
 }
 
 QHttpNetworkConnection::QHttpNetworkConnection(quint16 connectionCount, const QString &hostName,
@@ -1329,8 +1334,12 @@ QHttpNetworkConnection::QHttpNetworkConnection(quint16 connectionCount, const QS
                                                    connectionType)), parent)
 {
     Q_D(QHttpNetworkConnection);
-    d->networkSession = qMove(networkSession);
+    d->networkSession = std::move(networkSession);
     d->init();
+    if (QNetworkStatusMonitor::isEnabled()) {
+        connect(&d->connectionMonitor, &QNetworkConnectionMonitor::reachabilityChanged,
+                this, &QHttpNetworkConnection::onlineStateChanged, Qt::QueuedConnection);
+    }
 }
 #else
 QHttpNetworkConnection::QHttpNetworkConnection(const QString &hostName, quint16 port, bool encrypt,
@@ -1339,6 +1348,10 @@ QHttpNetworkConnection::QHttpNetworkConnection(const QString &hostName, quint16
 {
     Q_D(QHttpNetworkConnection);
     d->init();
+    if (QNetworkStatusMonitor::isEnabled()) {
+        connect(&d->connectionMonitor, &QNetworkConnectionMonitor::reachabilityChanged,
+                this, &QHttpNetworkConnection::onlineStateChanged, Qt::QueuedConnection);
+    }
 }
 
 QHttpNetworkConnection::QHttpNetworkConnection(quint16 connectionCount, const QString &hostName,
@@ -1349,8 +1362,12 @@ QHttpNetworkConnection::QHttpNetworkConnection(quint16 connectionCount, const QS
 {
     Q_D(QHttpNetworkConnection);
     d->init();
+    if (QNetworkStatusMonitor::isEnabled()) {
+        connect(&d->connectionMonitor, &QNetworkConnectionMonitor::reachabilityChanged,
+                this, &QHttpNetworkConnection::onlineStateChanged, Qt::QueuedConnection);
+    }
 }
-#endif
+#endif // QT_NO_BEARERMANAGEMENT
 
 QHttpNetworkConnection::~QHttpNetworkConnection()
 {
@@ -1476,7 +1493,7 @@ QSharedPointer<QSslContext> QHttpNetworkConnection::sslContext()
 void QHttpNetworkConnection::setSslContext(QSharedPointer<QSslContext> context)
 {
     Q_D(QHttpNetworkConnection);
-    d->sslContext = qMove(context);
+    d->sslContext = std::move(context);
 }
 
 void QHttpNetworkConnection::ignoreSslErrors(int channel)
@@ -1530,6 +1547,26 @@ void QHttpNetworkConnection::setPeerVerifyName(const QString &peerName)
     d->peerVerifyName = peerName;
 }
 
+void QHttpNetworkConnection::onlineStateChanged(bool isOnline)
+{
+    Q_D(QHttpNetworkConnection);
+
+    if (isOnline) {
+        // If we did not have any 'isOffline' previously - well, good
+        // to know, we are 'online' apparently.
+        return;
+    }
+
+    for (int i = 0; i < d->activeChannelCount; i++) {
+        auto &channel = d->channels[i];
+        channel.emitFinishedWithError(QNetworkReply::TemporaryNetworkFailureError, "Temporary network failure.");
+        channel.close();
+    }
+
+    // We don't care, this connection is broken from our POV.
+    d->connectionMonitor.stopMonitoring();
+}
+
 #ifndef QT_NO_NETWORKPROXY
 // only called from QHttpNetworkConnectionChannel::_q_proxyAuthenticationRequired, not
 // from QHttpNetworkConnectionChannel::handleAuthenticationChallenge
diff --git a/src/network/access/qhttpnetworkconnection_p.h b/src/network/access/qhttpnetworkconnection_p.h
index 2bd727e0af..85d89f20c2 100644
--- a/src/network/access/qhttpnetworkconnection_p.h
+++ b/src/network/access/qhttpnetworkconnection_p.h
@@ -67,6 +67,7 @@
 #include <private/qhttpnetworkheader_p.h>
 #include <private/qhttpnetworkrequest_p.h>
 #include <private/qhttpnetworkreply_p.h>
+#include <private/qnetconmonitor_p.h>
 #include <private/http2protocol_p.h>
 
 #include <private/qhttpnetworkconnectionchannel_p.h>
@@ -101,10 +102,10 @@ public:
 #ifndef QT_NO_BEARERMANAGEMENT
     explicit QHttpNetworkConnection(const QString &hostName, quint16 port = 80, bool encrypt = false,
                                     ConnectionType connectionType = ConnectionTypeHTTP,
-                                    QObject *parent = 0, QSharedPointer<QNetworkSession> networkSession
+                                    QObject *parent = nullptr, QSharedPointer<QNetworkSession> networkSession
                                     = QSharedPointer<QNetworkSession>());
     QHttpNetworkConnection(quint16 channelCount, const QString &hostName, quint16 port = 80,
-                           bool encrypt = false, QObject *parent = 0,
+                           bool encrypt = false, QObject *parent = nullptr,
                            QSharedPointer<QNetworkSession> networkSession = QSharedPointer<QNetworkSession>(),
                            ConnectionType connectionType = ConnectionTypeHTTP);
 #else
@@ -156,6 +157,10 @@ public:
 
     QString peerVerifyName() const;
     void setPeerVerifyName(const QString &peerName);
+
+public slots:
+    void onlineStateChanged(bool isOnline);
+
 private:
     Q_DECLARE_PRIVATE(QHttpNetworkConnection)
     Q_DISABLE_COPY_MOVE(QHttpNetworkConnection)
@@ -292,6 +297,14 @@ public:
     Http2::ProtocolParameters http2Parameters;
 
     QString peerVerifyName;
+    // If network status monitoring is enabled, we activate connectionMonitor
+    // as soons as one of channels managed to connect to host (and we
+    // have a pair of addresses (us,peer).
+    // NETMONTODO: consider activating a monitor on a change from
+    // HostLookUp state to ConnectingState (means we have both
+    // local/remote addresses known and can start monitoring this
+    // early).
+    QNetworkConnectionMonitor connectionMonitor;
 
     friend class QHttpNetworkConnectionChannel;
 };
diff --git a/src/network/access/qhttpnetworkconnectionchannel.cpp b/src/network/access/qhttpnetworkconnectionchannel.cpp
index f79a4d1dc6..9309d718e4 100644
--- a/src/network/access/qhttpnetworkconnectionchannel.cpp
+++ b/src/network/access/qhttpnetworkconnectionchannel.cpp
@@ -59,6 +59,8 @@
 #include "private/qnetworksession_p.h"
 #endif
 
+#include "private/qnetconmonitor_p.h"
+
 QT_BEGIN_NAMESPACE
 
 namespace
@@ -896,6 +898,16 @@ void QHttpNetworkConnectionChannel::_q_connected()
 
     pipeliningSupported = QHttpNetworkConnectionChannel::PipeliningSupportUnknown;
 
+    if (QNetworkStatusMonitor::isEnabled()) {
+        auto connectionPrivate = connection->d_func();
+        if (!connectionPrivate->connectionMonitor.isMonitoring()) {
+            // Now that we have a pair of addresses, we can start monitoring the
+            // connection status to handle its loss properly.
+            if (connectionPrivate->connectionMonitor.setTargets(socket->localAddress(), socket->peerAddress()))
+                connectionPrivate->connectionMonitor.startMonitoring();
+        }
+    }
+
     // ### FIXME: if the server closes the connection unexpectedly, we shouldn't send the same broken request again!
     //channels[i].reconnectAttempts = 2;
     if (ssl || pendingEncrypt) { // FIXME: Didn't work properly with pendingEncrypt only, we should refactor this into an EncrypingState
diff --git a/src/network/access/qhttpnetworkreply.cpp b/src/network/access/qhttpnetworkreply.cpp
index c9c3172304..a8b635c45a 100644
--- a/src/network/access/qhttpnetworkreply.cpp
+++ b/src/network/access/qhttpnetworkreply.cpp
@@ -444,6 +444,9 @@ QAuthenticatorPrivate::Method QHttpNetworkReplyPrivate::authenticationMethod(boo
         } else if (method < QAuthenticatorPrivate::DigestMd5
             && line.startsWith("digest")) {
             method = QAuthenticatorPrivate::DigestMd5;
+        } else if (method < QAuthenticatorPrivate::Negotiate
+            && line.startsWith("negotiate")) {
+            method = QAuthenticatorPrivate::Negotiate;
         }
     }
     return method;
diff --git a/src/network/access/qhttpnetworkreply_p.h b/src/network/access/qhttpnetworkreply_p.h
index 863e21ea3e..12cfe359aa 100644
--- a/src/network/access/qhttpnetworkreply_p.h
+++ b/src/network/access/qhttpnetworkreply_p.h
@@ -89,7 +89,7 @@ class Q_AUTOTEST_EXPORT QHttpNetworkReply : public QObject, public QHttpNetworkH
     Q_OBJECT
 public:
 
-    explicit QHttpNetworkReply(const QUrl &url = QUrl(), QObject *parent = 0);
+    explicit QHttpNetworkReply(const QUrl &url = QUrl(), QObject *parent = nullptr);
     virtual ~QHttpNetworkReply();
 
     QUrl url() const override;
diff --git a/src/network/access/qhttpthreaddelegate.cpp b/src/network/access/qhttpthreaddelegate.cpp
index 1fdf28df9d..6fb4710d77 100644
--- a/src/network/access/qhttpthreaddelegate.cpp
+++ b/src/network/access/qhttpthreaddelegate.cpp
@@ -189,7 +189,7 @@ public:
                                        QHttpNetworkConnection::ConnectionType connectionType,
                                        QSharedPointer<QNetworkSession> networkSession)
         : QHttpNetworkConnection(hostName, port, encrypt, connectionType, /*parent=*/0,
-                                 qMove(networkSession))
+                                 std::move(networkSession))
 #endif
     {
         setExpires(true);
diff --git a/src/network/access/qhttpthreaddelegate_p.h b/src/network/access/qhttpthreaddelegate_p.h
index 019a8b8b74..6184b39b30 100644
--- a/src/network/access/qhttpthreaddelegate_p.h
+++ b/src/network/access/qhttpthreaddelegate_p.h
@@ -82,7 +82,7 @@ class QHttpThreadDelegate : public QObject
 {
     Q_OBJECT
 public:
-    explicit QHttpThreadDelegate(QObject *parent = 0);
+    explicit QHttpThreadDelegate(QObject *parent = nullptr);
 
     ~QHttpThreadDelegate();
 
@@ -207,7 +207,7 @@ public:
         : QNonContiguousByteDevice(),
           wantDataPending(false),
           m_amount(0),
-          m_data(0),
+          m_data(nullptr),
           m_atEnd(aE),
           m_size(s),
           m_pos(0)
@@ -240,12 +240,12 @@ public:
             // Do nothing, we already sent a wantData signal and wait for results
             len = 0;
         }
-        return 0;
+        return nullptr;
     }
 
     bool advanceReadPointer(qint64 a) override
     {
-        if (m_data == 0)
+        if (m_data == nullptr)
             return false;
 
         m_amount -= a;
@@ -269,7 +269,7 @@ public:
     bool reset() override
     {
         m_amount = 0;
-        m_data = 0;
+        m_data = nullptr;
         m_dataArray.clear();
 
         if (wantDataPending) {
diff --git a/src/network/access/qnetworkaccessauthenticationmanager_p.h b/src/network/access/qnetworkaccessauthenticationmanager_p.h
index 548675728f..31111ca2a5 100644
--- a/src/network/access/qnetworkaccessauthenticationmanager_p.h
+++ b/src/network/access/qnetworkaccessauthenticationmanager_p.h
@@ -90,12 +90,12 @@ public:
 
     void cacheCredentials(const QUrl &url, const QAuthenticator *auth);
     QNetworkAuthenticationCredential fetchCachedCredentials(const QUrl &url,
-                                                             const QAuthenticator *auth = 0);
+                                                             const QAuthenticator *auth = nullptr);
 
 #ifndef QT_NO_NETWORKPROXY
     void cacheProxyCredentials(const QNetworkProxy &proxy, const QAuthenticator *auth);
     QNetworkAuthenticationCredential fetchCachedProxyCredentials(const QNetworkProxy &proxy,
-                                                             const QAuthenticator *auth = 0);
+                                                             const QAuthenticator *auth = nullptr);
 #endif
 
     void clearCache();
diff --git a/src/network/access/qnetworkaccessftpbackend.cpp b/src/network/access/qnetworkaccessftpbackend.cpp
index 5ad820eba0..51ed2f5a55 100644
--- a/src/network/access/qnetworkaccessftpbackend.cpp
+++ b/src/network/access/qnetworkaccessftpbackend.cpp
@@ -99,6 +99,8 @@ public:
         connect(this, SIGNAL(done(bool)), this, SLOT(deleteLater()));
         close();
     }
+
+    using QFtp::clearError;
 };
 
 QNetworkAccessFtpBackend::QNetworkAccessFtpBackend()
@@ -282,7 +284,10 @@ void QNetworkAccessFtpBackend::ftpDone()
     }
 
     // check for errors:
-    if (ftp->error() != QFtp::NoError) {
+    if (state == CheckingFeatures && ftp->error() == QFtp::UnknownError) {
+        qWarning("QNetworkAccessFtpBackend: HELP command failed, ignoring it");
+        ftp->clearError();
+    } else if (ftp->error() != QFtp::NoError) {
         QString msg;
         if (operation() == QNetworkAccessManager::GetOperation)
             msg = tr("Error while downloading %1: %2");
diff --git a/src/network/access/qnetworkaccessmanager.cpp b/src/network/access/qnetworkaccessmanager.cpp
index 50b9488594..d201b9e211 100644
--- a/src/network/access/qnetworkaccessmanager.cpp
+++ b/src/network/access/qnetworkaccessmanager.cpp
@@ -90,6 +90,8 @@
 #include "qnetworkreplywasmimpl_p.h"
 #endif
 
+#include "qnetconmonitor_p.h"
+
 QT_BEGIN_NAMESPACE
 
 Q_GLOBAL_STATIC(QNetworkAccessFileBackendFactory, fileBackend)
@@ -486,18 +488,25 @@ QNetworkAccessManager::QNetworkAccessManager(QObject *parent)
     qRegisterMetaType<QNetworkReply::NetworkError>();
     qRegisterMetaType<QSharedPointer<char> >();
 
-#ifndef QT_NO_BEARERMANAGEMENT
     Q_D(QNetworkAccessManager);
-    // if a session is required, we track online state through
-    // the QNetworkSession's signals if a request is already made.
-    // we need to track current accessibility state by default
-    //
-    connect(&d->networkConfigurationManager, SIGNAL(onlineStateChanged(bool)),
-            SLOT(_q_onlineStateChanged(bool)));
-    connect(&d->networkConfigurationManager, SIGNAL(configurationChanged(QNetworkConfiguration)),
-            SLOT(_q_configurationChanged(QNetworkConfiguration)));
-
-#endif
+    if (QNetworkStatusMonitor::isEnabled()) {
+        connect(&d->statusMonitor, SIGNAL(onlineStateChanged(bool)),
+                SLOT(_q_onlineStateChanged(bool)));
+#ifdef QT_NO_BEARERMANAGEMENT
+        d->networkAccessible = d->statusMonitor.isNetworkAccesible();
+#else
+        d->networkAccessible = d->statusMonitor.isNetworkAccesible() ? Accessible : NotAccessible;
+    } else {
+        // if a session is required, we track online state through
+        // the QNetworkSession's signals if a request is already made.
+        // we need to track current accessibility state by default
+        //
+        connect(&d->networkConfigurationManager, SIGNAL(onlineStateChanged(bool)),
+                SLOT(_q_onlineStateChanged(bool)));
+        connect(&d->networkConfigurationManager, SIGNAL(configurationChanged(QNetworkConfiguration)),
+                SLOT(_q_configurationChanged(QNetworkConfiguration)));
+#endif // QT_NO_BEARERMANAGEMENT
+    }
 }
 
 /*!
@@ -1030,6 +1039,7 @@ QNetworkReply *QNetworkAccessManager::deleteResource(const QNetworkRequest &requ
 void QNetworkAccessManager::setConfiguration(const QNetworkConfiguration &config)
 {
     Q_D(QNetworkAccessManager);
+
     d->networkConfiguration = config;
     d->customNetworkConfiguration = true;
     d->createSession(config);
@@ -1048,7 +1058,7 @@ QNetworkConfiguration QNetworkAccessManager::configuration() const
     Q_D(const QNetworkAccessManager);
 
     QSharedPointer<QNetworkSession> session(d->getNetworkSession());
-    if (session) {
+    if (session && !d->statusMonitor.isEnabled()) {
         return session->configuration();
     } else {
         return d->networkConfigurationManager.defaultConfiguration();
@@ -1075,7 +1085,7 @@ QNetworkConfiguration QNetworkAccessManager::activeConfiguration() const
     Q_D(const QNetworkAccessManager);
 
     QSharedPointer<QNetworkSession> networkSession(d->getNetworkSession());
-    if (networkSession) {
+    if (networkSession && !d->statusMonitor.isEnabled()) {
         return d->networkConfigurationManager.configurationFromIdentifier(
             networkSession->sessionProperty(QLatin1String("ActiveConfiguration")).toString());
     } else {
@@ -1114,6 +1124,12 @@ QNetworkAccessManager::NetworkAccessibility QNetworkAccessManager::networkAccess
 {
     Q_D(const QNetworkAccessManager);
 
+    if (d->statusMonitor.isEnabled()) {
+        if (!d->statusMonitor.isMonitoring())
+            d->statusMonitor.start();
+        return d->networkAccessible;
+    }
+
     if (d->customNetworkConfiguration && d->networkConfiguration.state().testFlag(QNetworkConfiguration::Undefined))
         return UnknownAccessibility;
 
@@ -1434,35 +1450,57 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
         }
     }
 
-#ifndef QT_NO_BEARERMANAGEMENT
+    if (d->statusMonitor.isEnabled()) {
+        // See the code in ctor - QNetworkStatusMonitor allows us to
+        // immediately set 'networkAccessible' even before we start
+        // the monitor.
+#ifdef QT_NO_BEARERMANAGEMENT
+        if (d->networkAccessible
+#else
+        if (d->networkAccessible == NotAccessible
+#endif // QT_NO_BEARERMANAGEMENT
+            && !isLocalFile) {
+            QHostAddress dest;
+            QString host = req.url().host().toLower();
+            if (!(dest.setAddress(host) && dest.isLoopback())
+                 && host != QLatin1String("localhost")
+                 && host != QHostInfo::localHostName().toLower()) {
+                return new QDisabledNetworkReply(this, req, op);
+            }
+        }
 
-    // Return a disabled network reply if network access is disabled.
-    // Except if the scheme is empty or file:// or if the host resolves to a loopback address.
-    if (d->networkAccessible == NotAccessible && !isLocalFile) {
-        QHostAddress dest;
-        QString host = req.url().host().toLower();
-        if (!(dest.setAddress(host) && dest.isLoopback()) && host != QLatin1String("localhost")
+        if (!d->statusMonitor.isMonitoring() && !d->statusMonitor.start())
+            qWarning(lcNetMon, "failed to start network status monitoring");
+    } else {
+#ifndef QT_NO_BEARERMANAGEMENT
+        // Return a disabled network reply if network access is disabled.
+        // Except if the scheme is empty or file:// or if the host resolves to a loopback address.
+        if (d->networkAccessible == NotAccessible && !isLocalFile) {
+            QHostAddress dest;
+            QString host = req.url().host().toLower();
+            if (!(dest.setAddress(host) && dest.isLoopback()) && host != QLatin1String("localhost")
                 && host != QHostInfo::localHostName().toLower()) {
-            return new QDisabledNetworkReply(this, req, op);
+                return new QDisabledNetworkReply(this, req, op);
+            }
         }
-    }
 
-    if (!d->networkSessionStrongRef && (d->initializeSession || !d->networkConfiguration.identifier().isEmpty())) {
-        if (!d->networkConfiguration.identifier().isEmpty()) {
-            if ((d->networkConfiguration.state() & QNetworkConfiguration::Defined)
-                    && d->networkConfiguration != d->networkConfigurationManager.defaultConfiguration())
-                d->createSession(d->networkConfigurationManager.defaultConfiguration());
-            else
-                d->createSession(d->networkConfiguration);
+        if (!d->networkSessionStrongRef && (d->initializeSession || !d->networkConfiguration.identifier().isEmpty())) {
+            if (!d->networkConfiguration.identifier().isEmpty()) {
+                if ((d->networkConfiguration.state() & QNetworkConfiguration::Defined)
+                        && d->networkConfiguration != d->networkConfigurationManager.defaultConfiguration())
+                    d->createSession(d->networkConfigurationManager.defaultConfiguration());
+                else
+                    d->createSession(d->networkConfiguration);
 
-        } else {
-            if (d->networkSessionRequired)
-                d->createSession(d->networkConfigurationManager.defaultConfiguration());
-            else
-                d->initializeSession = false;
+            } else {
+                if (d->networkSessionRequired)
+                    d->createSession(d->networkConfigurationManager.defaultConfiguration());
+                else
+                    d->initializeSession = false;
+            }
         }
-    }
 #endif
+    }
 
     QNetworkRequest request = req;
     if (!request.header(QNetworkRequest::ContentLengthHeader).isValid() &&
@@ -1509,8 +1547,10 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
 #endif
         QNetworkReplyHttpImpl *reply = new QNetworkReplyHttpImpl(this, request, op, outgoingData);
 #ifndef QT_NO_BEARERMANAGEMENT
-        connect(this, SIGNAL(networkSessionConnected()),
-                reply, SLOT(_q_networkSessionConnected()));
+        if (!d->statusMonitor.isEnabled()) {
+            connect(this, SIGNAL(networkSessionConnected()),
+                    reply, SLOT(_q_networkSessionConnected()));
+        }
 #endif
         return reply;
     }
@@ -1519,7 +1559,9 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
     // first step: create the reply
     QNetworkReplyImpl *reply = new QNetworkReplyImpl(this);
 #ifndef QT_NO_BEARERMANAGEMENT
-    if (!isLocalFile) {
+    // NETMONTODO: network reply impl must be augmented to use the same monitoring
+    // capabilities as http network reply impl does.
+    if (!isLocalFile && !d->statusMonitor.isEnabled()) {
         connect(this, SIGNAL(networkSessionConnected()),
                 reply, SLOT(_q_networkSessionConnected()));
     }
@@ -1988,7 +2030,13 @@ void QNetworkAccessManagerPrivate::_q_networkSessionStateChanged(QNetworkSession
 
 void QNetworkAccessManagerPrivate::_q_onlineStateChanged(bool isOnline)
 {
-   Q_Q(QNetworkAccessManager);
+    Q_Q(QNetworkAccessManager);
+
+    if (statusMonitor.isEnabled()) {
+        networkAccessible = isOnline ? QNetworkAccessManager::Accessible : QNetworkAccessManager::NotAccessible;
+        return;
+    }
+
 
    // if the user set a config, we only care whether this one is active.
     // Otherwise, this QNAM is online if there is an online config.
@@ -2018,6 +2066,9 @@ void QNetworkAccessManagerPrivate::_q_onlineStateChanged(bool isOnline)
 
 void QNetworkAccessManagerPrivate::_q_configurationChanged(const QNetworkConfiguration &configuration)
 {
+    if (statusMonitor.isEnabled())
+        return;
+
     const QString id = configuration.identifier();
     if (configuration.state().testFlag(QNetworkConfiguration::Active)) {
         if (!onlineConfigurations.contains(id)) {
@@ -2050,6 +2101,9 @@ void QNetworkAccessManagerPrivate::_q_configurationChanged(const QNetworkConfigu
 
 void QNetworkAccessManagerPrivate::_q_networkSessionFailed(QNetworkSession::SessionError)
 {
+    if (statusMonitor.isEnabled())
+        return;
+
     const auto cfgs = networkConfigurationManager.allConfigurations();
     for (const QNetworkConfiguration &cfg : cfgs) {
         if (cfg.state().testFlag(QNetworkConfiguration::Active)) {
@@ -2061,6 +2115,13 @@ void QNetworkAccessManagerPrivate::_q_networkSessionFailed(QNetworkSession::Sess
     }
 }
 
+#else
+
+void QNetworkAccessManagerPrivate::_q_onlineStateChanged(bool isOnline)
+{
+    networkAccessible = isOnline;
+}
+
 #endif // QT_NO_BEARERMANAGEMENT
 
 #if QT_CONFIG(http)
diff --git a/src/network/access/qnetworkaccessmanager.h b/src/network/access/qnetworkaccessmanager.h
index 7e2f7683d0..fa23537c68 100644
--- a/src/network/access/qnetworkaccessmanager.h
+++ b/src/network/access/qnetworkaccessmanager.h
@@ -209,10 +209,10 @@ private:
 #ifndef QT_NO_BEARERMANAGEMENT
     Q_PRIVATE_SLOT(d_func(), void _q_networkSessionClosed())
     Q_PRIVATE_SLOT(d_func(), void _q_networkSessionStateChanged(QNetworkSession::State))
-    Q_PRIVATE_SLOT(d_func(), void _q_onlineStateChanged(bool))
     Q_PRIVATE_SLOT(d_func(), void _q_configurationChanged(const QNetworkConfiguration &))
     Q_PRIVATE_SLOT(d_func(), void _q_networkSessionFailed(QNetworkSession::SessionError))
 #endif
+    Q_PRIVATE_SLOT(d_func(), void _q_onlineStateChanged(bool))
 };
 
 QT_END_NAMESPACE
diff --git a/src/network/access/qnetworkaccessmanager_p.h b/src/network/access/qnetworkaccessmanager_p.h
index 5cab4928e4..dfd747a767 100644
--- a/src/network/access/qnetworkaccessmanager_p.h
+++ b/src/network/access/qnetworkaccessmanager_p.h
@@ -55,6 +55,7 @@
 #include "qnetworkaccessmanager.h"
 #include "qnetworkaccesscache_p.h"
 #include "qnetworkaccessbackend_p.h"
+#include "private/qnetconmonitor_p.h"
 #include "qnetworkrequest.h"
 #include "qhsts_p.h"
 #include "private/qobject_p.h"
@@ -151,6 +152,7 @@ public:
     QNetworkAccessBackend *findBackend(QNetworkAccessManager::Operation op, const QNetworkRequest &request);
     QStringList backendSupportedSchemes() const;
 
+    void _q_onlineStateChanged(bool isOnline);
 #ifndef QT_NO_BEARERMANAGEMENT
     void createSession(const QNetworkConfiguration &config);
     QSharedPointer<QNetworkSession> getNetworkSession() const;
@@ -160,12 +162,11 @@ public:
     void _q_networkSessionPreferredConfigurationChanged(const QNetworkConfiguration &config,
                                                         bool isSeamless);
     void _q_networkSessionStateChanged(QNetworkSession::State state);
-    void _q_onlineStateChanged(bool isOnline);
+
     void _q_configurationChanged(const QNetworkConfiguration &configuration);
     void _q_networkSessionFailed(QNetworkSession::SessionError error);
 
     QSet<QString> onlineConfigurations;
-
 #endif
 
 #if QT_CONFIG(http)
@@ -199,6 +200,8 @@ public:
     int activeReplyCount;
     bool online;
     bool initializeSession;
+#else
+    bool networkAccessible = true;
 #endif
 
     bool cookieJarCreated;
@@ -222,6 +225,7 @@ public:
     QScopedPointer<QHstsStore> stsStore;
 #endif // QT_CONFIG(settings)
     bool stsEnabled = false;
+    mutable QNetworkStatusMonitor statusMonitor;
 
 #ifndef QT_NO_BEARERMANAGEMENT
     Q_AUTOTEST_EXPORT static const QWeakPointer<const QNetworkSession> getNetworkSession(const QNetworkAccessManager *manager);
diff --git a/src/network/access/qnetworkcookie.cpp b/src/network/access/qnetworkcookie.cpp
index b7cf989477..903de322ff 100644
--- a/src/network/access/qnetworkcookie.cpp
+++ b/src/network/access/qnetworkcookie.cpp
@@ -46,6 +46,7 @@
 #include "QtCore/qdebug.h"
 #include "QtCore/qlist.h"
 #include "QtCore/qlocale.h"
+#include <QtCore/qregexp.h>
 #include "QtCore/qstring.h"
 #include "QtCore/qstringlist.h"
 #include "QtCore/qurl.h"
diff --git a/src/network/access/qnetworkcookie.h b/src/network/access/qnetworkcookie.h
index e462b98555..b712b63849 100644
--- a/src/network/access/qnetworkcookie.h
+++ b/src/network/access/qnetworkcookie.h
@@ -66,12 +66,10 @@ public:
     explicit QNetworkCookie(const QByteArray &name = QByteArray(), const QByteArray &value = QByteArray());
     QNetworkCookie(const QNetworkCookie &other);
     ~QNetworkCookie();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkCookie &operator=(QNetworkCookie &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkCookie &operator=(QNetworkCookie &&other) noexcept { swap(other); return *this; }
     QNetworkCookie &operator=(const QNetworkCookie &other);
 
-    void swap(QNetworkCookie &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkCookie &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkCookie &other) const;
     inline bool operator!=(const QNetworkCookie &other) const
diff --git a/src/network/access/qnetworkdiskcache_p.h b/src/network/access/qnetworkdiskcache_p.h
index f7988e7dda..c797e63830 100644
--- a/src/network/access/qnetworkdiskcache_p.h
+++ b/src/network/access/qnetworkdiskcache_p.h
@@ -67,7 +67,7 @@ class QFile;
 class QCacheItem
 {
 public:
-    QCacheItem() : file(0)
+    QCacheItem() : file(nullptr)
     {
     }
     ~QCacheItem()
@@ -85,7 +85,7 @@ public:
         metaData = QNetworkCacheMetaData();
         data.close();
         delete file;
-        file = 0;
+        file = nullptr;
     }
     void writeHeader(QFile *device) const;
     void writeCompressedData(QFile *device) const;
diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index f801ef0c88..b9651b35d2 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -59,6 +59,7 @@
 #include <QtCore/private/qthread_p.h>
 
 #include "qnetworkcookiejar.h"
+#include "qnetconmonitor_p.h"
 
 #include <string.h>             // for strchr
 
@@ -166,6 +167,11 @@ static QHash<QByteArray, QByteArray> parseHttpOptionHeader(const QByteArray &hea
 #if QT_CONFIG(bearermanagement)
 static bool isSessionNeeded(const QUrl &url)
 {
+    if (QNetworkStatusMonitor::isEnabled()) {
+        // In case QNetworkStatus/QNetConManager are in business,
+        // no session, no bearer manager are involved.
+        return false;
+    }
     // Connections to the local machine does not require a session
     QString host = url.host().toLower();
     return !QHostAddress(host).isLoopback() && host != QLatin1String("localhost")
@@ -796,7 +802,8 @@ void QNetworkReplyHttpImplPrivate::postRequest(const QNetworkRequest &newHttpReq
     if (blob.isValid() && blob.canConvert<Http2::ProtocolParameters>())
         delegate->http2Parameters = blob.value<Http2::ProtocolParameters>();
 #ifndef QT_NO_BEARERMANAGEMENT
-    delegate->networkSession = managerPrivate->getNetworkSession();
+    if (!QNetworkStatusMonitor::isEnabled())
+        delegate->networkSession = managerPrivate->getNetworkSession();
 #endif
 
     // For the synchronous HTTP, this is the normal way the delegate gets deleted
@@ -1807,7 +1814,7 @@ bool QNetworkReplyHttpImplPrivate::start(const QNetworkRequest &newHttpRequest)
 {
 #ifndef QT_NO_BEARERMANAGEMENT
     QSharedPointer<QNetworkSession> networkSession(managerPrivate->getNetworkSession());
-    if (!networkSession) {
+    if (!networkSession || QNetworkStatusMonitor::isEnabled()) {
 #endif
         postRequest(newHttpRequest);
         return true;
@@ -1895,7 +1902,7 @@ void QNetworkReplyHttpImplPrivate::_q_startOperation()
         // state changes.
         if (!startWaitForSession(session))
             return;
-    } else if (session) {
+    } else if (session && !QNetworkStatusMonitor::isEnabled()) {
         QObject::connect(session.data(), SIGNAL(stateChanged(QNetworkSession::State)),
                          q, SLOT(_q_networkSessionStateChanged(QNetworkSession::State)),
                          Qt::QueuedConnection);
@@ -2184,7 +2191,7 @@ void QNetworkReplyHttpImplPrivate::finished()
 #ifndef QT_NO_BEARERMANAGEMENT
     Q_ASSERT(managerPrivate);
     QSharedPointer<QNetworkSession> session = managerPrivate->getNetworkSession();
-    if (session && session->state() == QNetworkSession::Roaming &&
+    if (!QNetworkStatusMonitor::isEnabled() && session && session->state() == QNetworkSession::Roaming &&
         state == Working && errorCode != QNetworkReply::OperationCanceledError) {
         // only content with a known size will fail with a temporary network failure error
         if (!totalSize.isNull()) {
diff --git a/src/network/access/qnetworkreplyimpl.cpp b/src/network/access/qnetworkreplyimpl.cpp
index a794b492e7..1a02938de9 100644
--- a/src/network/access/qnetworkreplyimpl.cpp
+++ b/src/network/access/qnetworkreplyimpl.cpp
@@ -368,6 +368,7 @@ void QNetworkReplyImplPrivate::setup(QNetworkAccessManager::Operation op, const
 
     outgoingData = data;
     request = req;
+    originalRequest = req;
     url = request.url();
     operation = op;
 
@@ -1116,7 +1117,6 @@ bool QNetworkReplyImplPrivate::migrateBackend()
     return true;
 }
 
-#ifndef QT_NO_BEARERMANAGEMENT
 QDisabledNetworkReply::QDisabledNetworkReply(QObject *parent,
                                              const QNetworkRequest &req,
                                              QNetworkAccessManager::Operation op)
@@ -1141,7 +1141,6 @@ QDisabledNetworkReply::QDisabledNetworkReply(QObject *parent,
 QDisabledNetworkReply::~QDisabledNetworkReply()
 {
 }
-#endif
 
 QT_END_NAMESPACE
 
diff --git a/src/network/access/qnetworkreplyimpl_p.h b/src/network/access/qnetworkreplyimpl_p.h
index f4e8284ab6..85f5b862a8 100644
--- a/src/network/access/qnetworkreplyimpl_p.h
+++ b/src/network/access/qnetworkreplyimpl_p.h
@@ -74,7 +74,7 @@ class QNetworkReplyImpl: public QNetworkReply
 {
     Q_OBJECT
 public:
-    QNetworkReplyImpl(QObject *parent = 0);
+    QNetworkReplyImpl(QObject *parent = nullptr);
     ~QNetworkReplyImpl();
     virtual void abort() override;
 
@@ -209,7 +209,6 @@ public:
 };
 Q_DECLARE_TYPEINFO(QNetworkReplyImplPrivate::InternalNotifications, Q_PRIMITIVE_TYPE);
 
-#ifndef QT_NO_BEARERMANAGEMENT
 class QDisabledNetworkReply : public QNetworkReply
 {
     Q_OBJECT
@@ -223,7 +222,6 @@ public:
 protected:
     qint64 readData(char *, qint64) override { return -1; }
 };
-#endif
 
 QT_END_NAMESPACE
 
diff --git a/src/network/access/qnetworkrequest.h b/src/network/access/qnetworkrequest.h
index efb9cbecba..de27b9fede 100644
--- a/src/network/access/qnetworkrequest.h
+++ b/src/network/access/qnetworkrequest.h
@@ -130,12 +130,10 @@ public:
     explicit QNetworkRequest(const QUrl &url = QUrl());
     QNetworkRequest(const QNetworkRequest &other);
     ~QNetworkRequest();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkRequest &operator=(QNetworkRequest &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkRequest &operator=(QNetworkRequest &&other) noexcept { swap(other); return *this; }
     QNetworkRequest &operator=(const QNetworkRequest &other);
 
-    void swap(QNetworkRequest &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkRequest &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkRequest &other) const;
     inline bool operator!=(const QNetworkRequest &other) const
diff --git a/src/network/bearer/qbearerengine_p.h b/src/network/bearer/qbearerengine_p.h
index 5fc2578a78..a5a020a857 100644
--- a/src/network/bearer/qbearerengine_p.h
+++ b/src/network/bearer/qbearerengine_p.h
@@ -77,7 +77,7 @@ class Q_NETWORK_EXPORT QBearerEngine : public QObject
     friend class QNetworkConfigurationManagerPrivate;
 
 public:
-    explicit QBearerEngine(QObject *parent = 0);
+    explicit QBearerEngine(QObject *parent = nullptr);
     virtual ~QBearerEngine();
 
     virtual bool hasIdentifier(const QString &id) = 0;
diff --git a/src/network/bearer/qbearerplugin_p.h b/src/network/bearer/qbearerplugin_p.h
index 0cdde3c06c..ac787d0541 100644
--- a/src/network/bearer/qbearerplugin_p.h
+++ b/src/network/bearer/qbearerplugin_p.h
@@ -68,7 +68,7 @@ class Q_NETWORK_EXPORT QBearerEnginePlugin : public QObject
 {
     Q_OBJECT
 public:
-    explicit QBearerEnginePlugin(QObject *parent = 0);
+    explicit QBearerEnginePlugin(QObject *parent = nullptr);
     virtual ~QBearerEnginePlugin();
 
     virtual QBearerEngine *create(const QString &key) const = 0;
diff --git a/src/network/bearer/qnetworkconfiguration.h b/src/network/bearer/qnetworkconfiguration.h
index e7b74034fc..048abc2fc8 100644
--- a/src/network/bearer/qnetworkconfiguration.h
+++ b/src/network/bearer/qnetworkconfiguration.h
@@ -55,13 +55,11 @@ class Q_NETWORK_EXPORT QNetworkConfiguration
 public:
     QNetworkConfiguration();
     QNetworkConfiguration(const QNetworkConfiguration& other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkConfiguration &operator=(QNetworkConfiguration &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkConfiguration &operator=(QNetworkConfiguration &&other) noexcept { swap(other); return *this; }
     QNetworkConfiguration &operator=(const QNetworkConfiguration &other);
     ~QNetworkConfiguration();
 
-    void swap(QNetworkConfiguration &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkConfiguration &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkConfiguration &other) const;
     inline bool operator!=(const QNetworkConfiguration &other) const
diff --git a/src/network/configure.json b/src/network/configure.json
index 07d46b790e..56805da7b2 100644
--- a/src/network/configure.json
+++ b/src/network/configure.json
@@ -199,6 +199,15 @@
                 ]
             },
             "use": "openssl"
+        },
+        "gssapi": {
+            "label": "KRB5 GSSAPI support",
+            "type": "compile",
+            "test": {
+                "include": [ "gssapi/gssapi.h" ],
+                "main": ["gss_ctx_id_t ctx;"],
+                "qmake": "LIBS += -lgssapi_krb5"
+            }
         }
     },
 
@@ -261,7 +270,7 @@
             "disable": "input.securetransport == 'no' || input.ssl == 'no'",
             "condition": "config.darwin && (input.openssl == '' || input.openssl == 'no')",
             "output": [
-                "privateFeature",
+                "publicFeature",
                 { "type": "define", "name": "QT_SECURETRANSPORT" }
             ]
         },
@@ -283,7 +292,7 @@
             "label": "DTLS",
             "purpose": "Provides a DTLS implementation",
             "section": "Networking",
-            "condition": "features.openssl && tests.dtls",
+            "condition": "features.openssl && features.udpsocket && tests.dtls",
             "output": [ "publicFeature" ]
         },
         "ocsp": {
@@ -374,6 +383,20 @@
             "purpose": "Provides API for DNS lookups.",
             "section": "Networking",
             "output": [ "publicFeature" ]
+        },
+        "gssapi": {
+            "label": "GSSAPI",
+            "purpose": "Enable SPNEGO authentication through GSSAPI",
+            "section": "Networking",
+            "condition": "!config.win32 && tests.gssapi",
+            "output": [ "publicFeature", "feature" ]
+        },
+        "sspi": {
+            "label": "SSPI",
+            "purpose": "Enable NTLM/SPNEGO authentication through SSPI",
+            "section": "Networking",
+            "condition": "config.win32 && !config.winrt",
+            "output": [ "publicFeature", "feature" ]
         }
     },
 
@@ -433,7 +456,8 @@ For example:
                 "dtls",
                 "ocsp",
                 "sctp",
-                "system-proxies"
+                "system-proxies",
+                "gssapi"
             ]
         }
     ]
diff --git a/src/network/kernel/kernel.pri b/src/network/kernel/kernel.pri
index 7074fcd5eb..0e4cef5e74 100644
--- a/src/network/kernel/kernel.pri
+++ b/src/network/kernel/kernel.pri
@@ -16,7 +16,8 @@ HEADERS += kernel/qtnetworkglobal.h \
            kernel/qnetworkinterface.h \
            kernel/qnetworkinterface_p.h \
            kernel/qnetworkinterface_unix_p.h \
-           kernel/qnetworkproxy.h
+           kernel/qnetworkproxy.h \
+           kernel/qnetconmonitor_p.h
 
 SOURCES += kernel/qauthenticator.cpp \
            kernel/qhostaddress.cpp \
@@ -71,6 +72,17 @@ mac {
     !uikit: LIBS_PRIVATE += -framework CoreServices -framework SystemConfiguration
 }
 
+macos | ios {
+    OBJECTIVE_SOURCES += \
+        kernel/qnetconmonitor_darwin.mm
+
+    LIBS_PRIVATE += -framework SystemConfiguration
+} else {
+    SOURCES += kernel/qnetconmonitor_stub.cpp
+}
+
+qtConfig(gssapi): LIBS_PRIVATE += -lgssapi_krb5
+
 uikit:HEADERS += kernel/qnetworkinterface_uikit_p.h
 osx:SOURCES += kernel/qnetworkproxy_mac.cpp
 else:win32:!winrt: SOURCES += kernel/qnetworkproxy_win.cpp
diff --git a/src/network/kernel/qauthenticator.cpp b/src/network/kernel/qauthenticator.cpp
index 47ce9ab0c6..3ca8806c2b 100644
--- a/src/network/kernel/qauthenticator.cpp
+++ b/src/network/kernel/qauthenticator.cpp
@@ -54,20 +54,29 @@
 #include <qmutex.h>
 #include <private/qmutexpool_p.h>
 #include <rpc.h>
-#ifndef Q_OS_WINRT
+#endif
+
+#if QT_CONFIG(sspi) // SSPI
 #define SECURITY_WIN32 1
 #include <security.h>
-#endif
+#elif QT_CONFIG(gssapi) // GSSAPI
+#include <gssapi/gssapi.h>
 #endif
 
 QT_BEGIN_NAMESPACE
 
 static QByteArray qNtlmPhase1();
 static QByteArray qNtlmPhase3(QAuthenticatorPrivate *ctx, const QByteArray& phase2data);
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-static QByteArray qNtlmPhase1_SSPI(QAuthenticatorPrivate *ctx);
-static QByteArray qNtlmPhase3_SSPI(QAuthenticatorPrivate *ctx, const QByteArray& phase2data);
-#endif
+#if QT_CONFIG(sspi) // SSPI
+static QByteArray qSspiStartup(QAuthenticatorPrivate *ctx, QAuthenticatorPrivate::Method method,
+                               const QString& host);
+static QByteArray qSspiContinue(QAuthenticatorPrivate *ctx, QAuthenticatorPrivate::Method method,
+                                const QString& host, const QByteArray& challenge = QByteArray());
+#elif QT_CONFIG(gssapi) // GSSAPI
+static QByteArray qGssapiStartup(QAuthenticatorPrivate *ctx, const QString& host);
+static QByteArray qGssapiContinue(QAuthenticatorPrivate *ctx,
+                                  const QByteArray& challenge = QByteArray());
+#endif // gssapi
 
 /*!
   \class QAuthenticator
@@ -90,6 +99,7 @@ static QByteArray qNtlmPhase3_SSPI(QAuthenticatorPrivate *ctx, const QByteArray&
     \li Basic
     \li NTLM version 2
     \li Digest-MD5
+    \li SPNEGO/Negotiate
   \endlist
 
   \target qauthenticator-options
@@ -133,6 +143,10 @@ static QByteArray qNtlmPhase3_SSPI(QAuthenticatorPrivate *ctx, const QByteArray&
 
   The Digest-MD5 authentication mechanism supports no outgoing options.
 
+  \section2 SPNEGO/Negotiate
+
+  This authentication mechanism currently supports no incoming or outgoing options.
+
   \sa QSslSocket
 */
 
@@ -187,7 +201,7 @@ QAuthenticator &QAuthenticator::operator=(const QAuthenticator &other)
         d->options = other.d->options;
     } else if (d->phase == QAuthenticatorPrivate::Start) {
         delete d;
-        d = 0;
+        d = nullptr;
     }
     return *this;
 }
@@ -339,21 +353,25 @@ bool QAuthenticator::isNull() const
     return !d;
 }
 
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-class QNtlmWindowsHandles
+#if QT_CONFIG(sspi) // SSPI
+class QSSPIWindowsHandles
 {
 public:
     CredHandle credHandle;
     CtxtHandle ctxHandle;
 };
-#endif
+#elif QT_CONFIG(gssapi) // GSSAPI
+class QGssApiHandles
+{
+public:
+    gss_ctx_id_t gssCtx = nullptr;
+    gss_name_t targetName;
+};
+#endif // gssapi
 
 
 QAuthenticatorPrivate::QAuthenticatorPrivate()
     : method(None)
-    #if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-    , ntlmWindowsHandles(0)
-    #endif
     , hasFailed(false)
     , phase(Start)
     , nonceCount(0)
@@ -363,13 +381,7 @@ QAuthenticatorPrivate::QAuthenticatorPrivate()
     nonceCount = 0;
 }
 
-QAuthenticatorPrivate::~QAuthenticatorPrivate()
-{
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-    if (ntlmWindowsHandles)
-        delete ntlmWindowsHandles;
-#endif
-}
+QAuthenticatorPrivate::~QAuthenticatorPrivate() = default;
 
 void QAuthenticatorPrivate::updateCredentials()
 {
@@ -424,6 +436,9 @@ void QAuthenticatorPrivate::parseHttpResponse(const QList<QPair<QByteArray, QByt
         } else if (method < DigestMd5 && str.startsWith("digest")) {
             method = DigestMd5;
             headerVal = current.second.mid(7);
+        } else if (method < Negotiate && str.startsWith("negotiate")) {
+            method = Negotiate;
+            headerVal = current.second.mid(10);
         }
     }
 
@@ -439,6 +454,7 @@ void QAuthenticatorPrivate::parseHttpResponse(const QList<QPair<QByteArray, QByt
             phase = Done;
         break;
     case Ntlm:
+    case Negotiate:
         // work is done in calculateResponse()
         break;
     case DigestMd5: {
@@ -456,33 +472,36 @@ void QAuthenticatorPrivate::parseHttpResponse(const QList<QPair<QByteArray, QByt
     }
 }
 
-QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMethod, const QByteArray &path)
+QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMethod, const QByteArray &path, const QString& host)
 {
+#if !QT_CONFIG(sspi) && !QT_CONFIG(gssapi)
+    Q_UNUSED(host);
+#endif
     QByteArray response;
-    const char *methodString = 0;
+    const char* methodString = nullptr;
     switch(method) {
     case QAuthenticatorPrivate::None:
         methodString = "";
         phase = Done;
         break;
     case QAuthenticatorPrivate::Basic:
-        methodString = "Basic ";
+        methodString = "Basic";
         response = user.toLatin1() + ':' + password.toLatin1();
         response = response.toBase64();
         phase = Done;
         break;
     case QAuthenticatorPrivate::DigestMd5:
-        methodString = "Digest ";
+        methodString = "Digest";
         response = digestMd5Response(challenge, requestMethod, path);
         phase = Done;
         break;
     case QAuthenticatorPrivate::Ntlm:
-        methodString = "NTLM ";
+        methodString = "NTLM";
         if (challenge.isEmpty()) {
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
+#if QT_CONFIG(sspi) // SSPI
             QByteArray phase1Token;
             if (user.isEmpty()) // Only pull from system if no user was specified in authenticator
-                phase1Token = qNtlmPhase1_SSPI(this);
+                phase1Token = qSspiStartup(this, method, host);
             if (!phase1Token.isEmpty()) {
                 response = phase1Token.toBase64();
                 phase = Phase2;
@@ -496,10 +515,10 @@ QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMet
                     phase = Phase2;
             }
         } else {
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
+#if QT_CONFIG(sspi) // SSPI
             QByteArray phase3Token;
-            if (ntlmWindowsHandles)
-                phase3Token = qNtlmPhase3_SSPI(this, QByteArray::fromBase64(challenge));
+            if (sspiWindowsHandles)
+                phase3Token = qSspiContinue(this, method, host, QByteArray::fromBase64(challenge));
             if (!phase3Token.isEmpty()) {
                 response = phase3Token.toBase64();
                 phase = Done;
@@ -512,8 +531,39 @@ QByteArray QAuthenticatorPrivate::calculateResponse(const QByteArray &requestMet
         }
 
         break;
+    case QAuthenticatorPrivate::Negotiate:
+        methodString = "Negotiate";
+        if (challenge.isEmpty()) {
+            QByteArray phase1Token;
+#if QT_CONFIG(sspi) // SSPI
+            phase1Token = qSspiStartup(this, method, host);
+#elif QT_CONFIG(gssapi) // GSSAPI
+            phase1Token = qGssapiStartup(this, host);
+#endif
+
+            if (!phase1Token.isEmpty()) {
+                response = phase1Token.toBase64();
+                phase = Phase2;
+            } else {
+                phase = Done;
+            }
+        } else {
+            QByteArray phase3Token;
+#if QT_CONFIG(sspi) // SSPI
+            phase3Token = qSspiContinue(this, method, host, QByteArray::fromBase64(challenge));
+#elif QT_CONFIG(gssapi) // GSSAPI
+            phase3Token = qGssapiContinue(this, QByteArray::fromBase64(challenge));
+#endif
+            if (!phase3Token.isEmpty()) {
+                response = phase3Token.toBase64();
+                phase = Done;
+            }
+        }
+
+        break;
     }
-    return QByteArray(methodString) + response;
+
+    return QByteArray::fromRawData(methodString, qstrlen(methodString)) + ' ' + response;
 }
 
 
@@ -699,9 +749,10 @@ QByteArray QAuthenticatorPrivate::digestMd5Response(const QByteArray &challenge,
     return credentials;
 }
 
-// ---------------------------- Digest Md5 code ----------------------------------------
+// ---------------------------- End of Digest Md5 code ---------------------------------
 
 
+// ---------------------------- NTLM code ----------------------------------------------
 
 /*
  * NTLM message flags.
@@ -1419,156 +1470,237 @@ static QByteArray qNtlmPhase3(QAuthenticatorPrivate *ctx, const QByteArray& phas
     return rc;
 }
 
-#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
+// ---------------------------- End of NTLM code ---------------------------------------
+
+#if QT_CONFIG(sspi) // SSPI
+// ---------------------------- SSPI code ----------------------------------------------
 // See http://davenport.sourceforge.net/ntlm.html
 // and libcurl http_ntlm.c
 
 // Handle of secur32.dll
-static HMODULE securityDLLHandle = NULL;
+static HMODULE securityDLLHandle = nullptr;
 // Pointer to SSPI dispatch table
-static PSecurityFunctionTable pSecurityFunctionTable = NULL;
-
+static PSecurityFunctionTable pSecurityFunctionTable = nullptr;
 
-static bool q_NTLM_SSPI_library_load()
+static bool q_SSPI_library_load()
 {
     static QBasicMutex mutex;
     QMutexLocker l(&mutex);
 
     // Initialize security interface
-    if (pSecurityFunctionTable == NULL) {
+    if (pSecurityFunctionTable == nullptr) {
         securityDLLHandle = LoadLibrary(L"secur32.dll");
-        if (securityDLLHandle != NULL) {
+        if (securityDLLHandle != nullptr) {
             INIT_SECURITY_INTERFACE pInitSecurityInterface =
                 reinterpret_cast<INIT_SECURITY_INTERFACE>(
                     reinterpret_cast<QFunctionPointer>(GetProcAddress(securityDLLHandle, "InitSecurityInterfaceW")));
-            if (pInitSecurityInterface != NULL)
+            if (pInitSecurityInterface != nullptr)
                 pSecurityFunctionTable = pInitSecurityInterface();
         }
     }
 
-    if (pSecurityFunctionTable == NULL)
+    if (pSecurityFunctionTable == nullptr)
         return false;
 
     return true;
 }
 
-// Phase 1:
-static QByteArray qNtlmPhase1_SSPI(QAuthenticatorPrivate *ctx)
+static QByteArray qSspiStartup(QAuthenticatorPrivate *ctx, QAuthenticatorPrivate::Method method,
+                               const QString& host)
 {
-    QByteArray result;
+    if (!q_SSPI_library_load())
+        return QByteArray();
+
+    TimeStamp expiry; // For Windows 9x compatibility of SSPI calls
 
-    if (!q_NTLM_SSPI_library_load())
-        return result;
+    if (!ctx->sspiWindowsHandles)
+        ctx->sspiWindowsHandles.reset(new QSSPIWindowsHandles);
+    memset(&ctx->sspiWindowsHandles->credHandle, 0, sizeof(CredHandle));
 
-    // 1. The client obtains a representation of the credential set
-    // for the user via the SSPI AcquireCredentialsHandle function.
-    if (!ctx->ntlmWindowsHandles)
-        ctx->ntlmWindowsHandles = new QNtlmWindowsHandles;
-    memset(&ctx->ntlmWindowsHandles->credHandle, 0, sizeof(CredHandle));
-    TimeStamp tsDummy;
+    // Acquire our credentials handle
     SECURITY_STATUS secStatus = pSecurityFunctionTable->AcquireCredentialsHandle(
-        NULL, (SEC_WCHAR*)L"NTLM", SECPKG_CRED_OUTBOUND, NULL, NULL,
-        NULL, NULL, &ctx->ntlmWindowsHandles->credHandle, &tsDummy);
+                nullptr,
+                (SEC_WCHAR*)(method == QAuthenticatorPrivate::Negotiate ? L"Negotiate" : L"NTLM"),
+                SECPKG_CRED_OUTBOUND, nullptr, nullptr, nullptr, nullptr,
+                &ctx->sspiWindowsHandles->credHandle, &expiry
+    );
     if (secStatus != SEC_E_OK) {
-        delete ctx->ntlmWindowsHandles;
-        ctx->ntlmWindowsHandles = 0;
-        return result;
+        ctx->sspiWindowsHandles.reset(nullptr);
+        return QByteArray();
     }
 
-    // 2. The client calls the SSPI InitializeSecurityContext function
-    // to obtain an authentication request token (in our case, a Type 1 message).
-    // The client sends this token to the server.
-    SecBufferDesc desc;
-    SecBuffer buf;
-    desc.ulVersion = SECBUFFER_VERSION;
-    desc.cBuffers  = 1;
-    desc.pBuffers  = &buf;
-    buf.cbBuffer   = 0;
-    buf.BufferType = SECBUFFER_TOKEN;
-    buf.pvBuffer   = NULL;
-    ULONG attrs;
-
-    secStatus = pSecurityFunctionTable->InitializeSecurityContext(&ctx->ntlmWindowsHandles->credHandle, NULL,
-        const_cast<SEC_WCHAR*>(L"") /* host */,
-        ISC_REQ_ALLOCATE_MEMORY,
-        0, SECURITY_NETWORK_DREP,
-        NULL, 0,
-        &ctx->ntlmWindowsHandles->ctxHandle, &desc,
-        &attrs, &tsDummy);
-    if (secStatus == SEC_I_COMPLETE_AND_CONTINUE ||
-        secStatus == SEC_I_CONTINUE_NEEDED) {
-            pSecurityFunctionTable->CompleteAuthToken(&ctx->ntlmWindowsHandles->ctxHandle, &desc);
-    } else if (secStatus != SEC_E_OK) {
-        if ((const char*)buf.pvBuffer)
-            pSecurityFunctionTable->FreeContextBuffer(buf.pvBuffer);
-        pSecurityFunctionTable->FreeCredentialsHandle(&ctx->ntlmWindowsHandles->credHandle);
-        delete ctx->ntlmWindowsHandles;
-        ctx->ntlmWindowsHandles = 0;
-        return result;
+    return qSspiContinue(ctx, method, host);
+}
+
+static QByteArray qSspiContinue(QAuthenticatorPrivate *ctx, QAuthenticatorPrivate::Method method,
+                                  const QString &host, const QByteArray &challenge)
+{
+    QByteArray result;
+    SecBuffer challengeBuf;
+    SecBuffer responseBuf;
+    SecBufferDesc challengeDesc;
+    SecBufferDesc responseDesc;
+    unsigned long attrs;
+    TimeStamp expiry; // For Windows 9x compatibility of SSPI calls
+
+    if (!challenge.isEmpty())
+    {
+        // Setup the challenge "input" security buffer
+        challengeDesc.ulVersion = SECBUFFER_VERSION;
+        challengeDesc.cBuffers  = 1;
+        challengeDesc.pBuffers  = &challengeBuf;
+        challengeBuf.BufferType = SECBUFFER_TOKEN;
+        challengeBuf.pvBuffer   = (PVOID)(challenge.data());
+        challengeBuf.cbBuffer   = challenge.length();
     }
 
-    result = QByteArray((const char*)buf.pvBuffer, buf.cbBuffer);
-    pSecurityFunctionTable->FreeContextBuffer(buf.pvBuffer);
+    // Setup the response "output" security buffer
+    responseDesc.ulVersion = SECBUFFER_VERSION;
+    responseDesc.cBuffers  = 1;
+    responseDesc.pBuffers  = &responseBuf;
+    responseBuf.BufferType = SECBUFFER_TOKEN;
+    responseBuf.pvBuffer   = nullptr;
+    responseBuf.cbBuffer   = 0;
+
+    // Calculate target (SPN for Negotiate, empty for NTLM)
+    std::wstring targetNameW = (method == QAuthenticatorPrivate::Negotiate
+                                ? QLatin1String("HTTP/") + host : QString()).toStdWString();
+
+    // Generate our challenge-response message
+    SECURITY_STATUS secStatus = pSecurityFunctionTable->InitializeSecurityContext(
+                &ctx->sspiWindowsHandles->credHandle,
+                !challenge.isEmpty() ? &ctx->sspiWindowsHandles->ctxHandle : nullptr,
+                const_cast<wchar_t*>(targetNameW.data()),
+                ISC_REQ_ALLOCATE_MEMORY,
+                0, SECURITY_NATIVE_DREP,
+                !challenge.isEmpty() ? &challengeDesc : nullptr,
+                0, &ctx->sspiWindowsHandles->ctxHandle,
+                &responseDesc, &attrs,
+                &expiry
+    );
+
+    if (secStatus == SEC_I_COMPLETE_NEEDED || secStatus == SEC_I_COMPLETE_AND_CONTINUE) {
+        secStatus = pSecurityFunctionTable->CompleteAuthToken(&ctx->sspiWindowsHandles->ctxHandle,
+                                                              &responseDesc);
+    }
+
+    if (secStatus != SEC_I_COMPLETE_AND_CONTINUE && secStatus != SEC_I_CONTINUE_NEEDED) {
+        pSecurityFunctionTable->FreeCredentialsHandle(&ctx->sspiWindowsHandles->credHandle);
+        pSecurityFunctionTable->DeleteSecurityContext(&ctx->sspiWindowsHandles->ctxHandle);
+        ctx->sspiWindowsHandles.reset(nullptr);
+    }
+
+    result = QByteArray((const char*)responseBuf.pvBuffer, responseBuf.cbBuffer);
+    pSecurityFunctionTable->FreeContextBuffer(responseBuf.pvBuffer);
+
     return result;
 }
 
-// Phase 2:
-// 3. The server receives the token from the client, and uses it as input to the
-// AcceptSecurityContext SSPI function. This creates a local security context on
-// the server to represent the client, and yields an authentication response token
-// (the Type 2 message), which is sent to the client.
+// ---------------------------- End of SSPI code ---------------------------------------
+
+#elif QT_CONFIG(gssapi) // GSSAPI
+
+// ---------------------------- GSSAPI code ----------------------------------------------
+// See postgres src/interfaces/libpq/fe-auth.c
+
+// Fetch all errors of a specific type
+static void q_GSSAPI_error_int(const char *message, OM_uint32 stat, int type)
+{
+    OM_uint32 minStat, msgCtx = 0;
+    gss_buffer_desc msg;
+
+    do {
+        gss_display_status(&minStat, stat, type, GSS_C_NO_OID, &msgCtx, &msg);
+        qDebug() << message << ": " << reinterpret_cast<const char*>(msg.value);
+        gss_release_buffer(&minStat, &msg);
+    } while (msgCtx);
+}
 
-// Phase 3:
-static QByteArray qNtlmPhase3_SSPI(QAuthenticatorPrivate *ctx, const QByteArray& phase2data)
+// GSSAPI errors contain two parts; extract both
+static void q_GSSAPI_error(const char *message, OM_uint32 majStat, OM_uint32 minStat)
 {
-    // 4. The client receives the response token from the server and calls
-    // InitializeSecurityContext again, passing the server's token as input.
-    // This provides us with another authentication request token (the Type 3 message).
-    // The return value indicates that the security context was successfully initialized;
-    // the token is sent to the server.
+    // Fetch major error codes
+    q_GSSAPI_error_int(message, majStat, GSS_C_GSS_CODE);
 
+    // Add the minor codes as well
+    q_GSSAPI_error_int(message, minStat, GSS_C_MECH_CODE);
+}
+
+// Send initial GSS authentication token
+static QByteArray qGssapiStartup(QAuthenticatorPrivate *ctx, const QString &host)
+{
+    OM_uint32 majStat, minStat;
+
+    if (!ctx->gssApiHandles)
+        ctx->gssApiHandles.reset(new QGssApiHandles);
+
+    // Convert target name to internal form
+    QByteArray serviceName = QStringLiteral("HTTPS@%1").arg(host).toLocal8Bit();
+    gss_buffer_desc nameDesc = {static_cast<std::size_t>(serviceName.size()), serviceName.data()};
+
+    majStat = gss_import_name(&minStat, &nameDesc,
+                              GSS_C_NT_HOSTBASED_SERVICE, &ctx->gssApiHandles->targetName);
+
+    if (majStat != GSS_S_COMPLETE) {
+        q_GSSAPI_error("gss_import_name error", majStat, minStat);
+        ctx->gssApiHandles.reset(nullptr);
+        return QByteArray();
+    }
+
+    // Call qGssapiContinue with GSS_C_NO_CONTEXT to get initial packet
+    ctx->gssApiHandles->gssCtx = GSS_C_NO_CONTEXT;
+    return qGssapiContinue(ctx);
+}
+
+// Continue GSS authentication with next token as needed
+static QByteArray qGssapiContinue(QAuthenticatorPrivate *ctx, const QByteArray& challenge)
+{
+    OM_uint32 majStat, minStat, ignored;
     QByteArray result;
+    gss_buffer_desc inBuf = {0, nullptr}; // GSS input token
+    gss_buffer_desc outBuf; // GSS output token
 
-    if (pSecurityFunctionTable == NULL)
-        return result;
-
-    SecBuffer type_2, type_3;
-    SecBufferDesc type_2_desc, type_3_desc;
-    ULONG attrs;
-    TimeStamp tsDummy; // For Windows 9x compatibility of SPPI calls
-
-    type_2_desc.ulVersion  = type_3_desc.ulVersion  = SECBUFFER_VERSION;
-    type_2_desc.cBuffers   = type_3_desc.cBuffers   = 1;
-    type_2_desc.pBuffers   = &type_2;
-    type_3_desc.pBuffers   = &type_3;
-
-    type_2.BufferType = SECBUFFER_TOKEN;
-    type_2.pvBuffer   = (PVOID)phase2data.data();
-    type_2.cbBuffer   = phase2data.length();
-    type_3.BufferType = SECBUFFER_TOKEN;
-    type_3.pvBuffer   = 0;
-    type_3.cbBuffer   = 0;
-
-    SECURITY_STATUS secStatus = pSecurityFunctionTable->InitializeSecurityContext(&ctx->ntlmWindowsHandles->credHandle,
-        &ctx->ntlmWindowsHandles->ctxHandle,
-        const_cast<SEC_WCHAR*>(L"") /* host */,
-        ISC_REQ_ALLOCATE_MEMORY,
-        0, SECURITY_NETWORK_DREP, &type_2_desc,
-        0, &ctx->ntlmWindowsHandles->ctxHandle, &type_3_desc,
-        &attrs, &tsDummy);
-
-    if (secStatus == SEC_E_OK && ((const char*)type_3.pvBuffer)) {
-        result = QByteArray((const char*)type_3.pvBuffer, type_3.cbBuffer);
-        pSecurityFunctionTable->FreeContextBuffer(type_3.pvBuffer);
+    if (!challenge.isEmpty()) {
+        inBuf.value = const_cast<char*>(challenge.data());
+        inBuf.length = challenge.length();
     }
 
-    pSecurityFunctionTable->FreeCredentialsHandle(&ctx->ntlmWindowsHandles->credHandle);
-    pSecurityFunctionTable->DeleteSecurityContext(&ctx->ntlmWindowsHandles->ctxHandle);
-    delete ctx->ntlmWindowsHandles;
-    ctx->ntlmWindowsHandles = 0;
+    majStat = gss_init_sec_context(&minStat,
+                                   GSS_C_NO_CREDENTIAL,
+                                   &ctx->gssApiHandles->gssCtx,
+                                   ctx->gssApiHandles->targetName,
+                                   GSS_C_NO_OID,
+                                   GSS_C_MUTUAL_FLAG,
+                                   0,
+                                   GSS_C_NO_CHANNEL_BINDINGS,
+                                   challenge.isEmpty() ? GSS_C_NO_BUFFER : &inBuf,
+                                   nullptr,
+                                   &outBuf,
+                                   nullptr,
+                                   nullptr);
+
+    if (outBuf.length != 0)
+        result = QByteArray(reinterpret_cast<const char*>(outBuf.value), outBuf.length);
+    gss_release_buffer(&ignored, &outBuf);
+
+    if (majStat != GSS_S_COMPLETE && majStat != GSS_S_CONTINUE_NEEDED) {
+        q_GSSAPI_error("gss_init_sec_context error", majStat, minStat);
+        gss_release_name(&ignored, &ctx->gssApiHandles->targetName);
+        if (ctx->gssApiHandles->gssCtx)
+            gss_delete_sec_context(&ignored, &ctx->gssApiHandles->gssCtx, GSS_C_NO_BUFFER);
+        ctx->gssApiHandles.reset(nullptr);
+    }
+
+    if (majStat == GSS_S_COMPLETE) {
+        gss_release_name(&ignored, &ctx->gssApiHandles->targetName);
+        ctx->gssApiHandles.reset(nullptr);
+    }
 
     return result;
 }
-#endif // Q_OS_WIN && !Q_OS_WINRT
+
+// ---------------------------- End of GSSAPI code ----------------------------------------------
+
+#endif // gssapi
 
 QT_END_NAMESPACE
diff --git a/src/network/kernel/qauthenticator_p.h b/src/network/kernel/qauthenticator_p.h
index 265cb7afe2..e201d22650 100644
--- a/src/network/kernel/qauthenticator_p.h
+++ b/src/network/kernel/qauthenticator_p.h
@@ -54,6 +54,7 @@
 #include <QtNetwork/private/qtnetworkglobal_p.h>
 #include <qhash.h>
 #include <qbytearray.h>
+#include <qscopedpointer.h>
 #include <qstring.h>
 #include <qauthenticator.h>
 #include <qvariant.h>
@@ -61,14 +62,16 @@
 QT_BEGIN_NAMESPACE
 
 class QHttpResponseHeader;
-#ifdef Q_OS_WIN
-class QNtlmWindowsHandles;
+#if QT_CONFIG(sspi) // SSPI
+class QSSPIWindowsHandles;
+#elif QT_CONFIG(gssapi) // GSSAPI
+class QGssApiHandles;
 #endif
 
 class Q_AUTOTEST_EXPORT QAuthenticatorPrivate
 {
 public:
-    enum Method { None, Basic, Ntlm, DigestMd5 };
+    enum Method { None, Basic, Ntlm, DigestMd5, Negotiate };
     QAuthenticatorPrivate();
     ~QAuthenticatorPrivate();
 
@@ -79,8 +82,10 @@ public:
     Method method;
     QString realm;
     QByteArray challenge;
-#ifdef Q_OS_WIN
-    QNtlmWindowsHandles *ntlmWindowsHandles;
+#if QT_CONFIG(sspi) // SSPI
+    QScopedPointer<QSSPIWindowsHandles> sspiWindowsHandles;
+#elif QT_CONFIG(gssapi) // GSSAPI
+    QScopedPointer<QGssApiHandles> gssApiHandles;
 #endif
     bool hasFailed; //credentials have been tried but rejected by server.
 
@@ -100,7 +105,7 @@ public:
     QString workstation;
     QString userDomain;
 
-    QByteArray calculateResponse(const QByteArray &method, const QByteArray &path);
+    QByteArray calculateResponse(const QByteArray &method, const QByteArray &path, const QString& host);
 
     inline static QAuthenticatorPrivate *getPrivate(QAuthenticator &auth) { return auth.d; }
     inline static const QAuthenticatorPrivate *getPrivate(const QAuthenticator &auth) { return auth.d; }
diff --git a/src/network/kernel/qdnslookup.h b/src/network/kernel/qdnslookup.h
index eebd0abe66..110a74da44 100644
--- a/src/network/kernel/qdnslookup.h
+++ b/src/network/kernel/qdnslookup.h
@@ -64,13 +64,11 @@ class Q_NETWORK_EXPORT QDnsDomainNameRecord
 public:
     QDnsDomainNameRecord();
     QDnsDomainNameRecord(const QDnsDomainNameRecord &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDnsDomainNameRecord &operator=(QDnsDomainNameRecord &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDnsDomainNameRecord &operator=(QDnsDomainNameRecord &&other) noexcept { swap(other); return *this; }
     QDnsDomainNameRecord &operator=(const QDnsDomainNameRecord &other);
     ~QDnsDomainNameRecord();
 
-    void swap(QDnsDomainNameRecord &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDnsDomainNameRecord &other) noexcept { qSwap(d, other.d); }
 
     QString name() const;
     quint32 timeToLive() const;
@@ -88,13 +86,11 @@ class Q_NETWORK_EXPORT QDnsHostAddressRecord
 public:
     QDnsHostAddressRecord();
     QDnsHostAddressRecord(const QDnsHostAddressRecord &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDnsHostAddressRecord &operator=(QDnsHostAddressRecord &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDnsHostAddressRecord &operator=(QDnsHostAddressRecord &&other) noexcept { swap(other); return *this; }
     QDnsHostAddressRecord &operator=(const QDnsHostAddressRecord &other);
     ~QDnsHostAddressRecord();
 
-    void swap(QDnsHostAddressRecord &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDnsHostAddressRecord &other) noexcept { qSwap(d, other.d); }
 
     QString name() const;
     quint32 timeToLive() const;
@@ -112,13 +108,11 @@ class Q_NETWORK_EXPORT QDnsMailExchangeRecord
 public:
     QDnsMailExchangeRecord();
     QDnsMailExchangeRecord(const QDnsMailExchangeRecord &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDnsMailExchangeRecord &operator=(QDnsMailExchangeRecord &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDnsMailExchangeRecord &operator=(QDnsMailExchangeRecord &&other) noexcept { swap(other); return *this; }
     QDnsMailExchangeRecord &operator=(const QDnsMailExchangeRecord &other);
     ~QDnsMailExchangeRecord();
 
-    void swap(QDnsMailExchangeRecord &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDnsMailExchangeRecord &other) noexcept { qSwap(d, other.d); }
 
     QString exchange() const;
     QString name() const;
@@ -137,13 +131,11 @@ class Q_NETWORK_EXPORT QDnsServiceRecord
 public:
     QDnsServiceRecord();
     QDnsServiceRecord(const QDnsServiceRecord &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDnsServiceRecord &operator=(QDnsServiceRecord &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDnsServiceRecord &operator=(QDnsServiceRecord &&other) noexcept { swap(other); return *this; }
     QDnsServiceRecord &operator=(const QDnsServiceRecord &other);
     ~QDnsServiceRecord();
 
-    void swap(QDnsServiceRecord &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDnsServiceRecord &other) noexcept { qSwap(d, other.d); }
 
     QString name() const;
     quint16 port() const;
@@ -164,13 +156,11 @@ class Q_NETWORK_EXPORT QDnsTextRecord
 public:
     QDnsTextRecord();
     QDnsTextRecord(const QDnsTextRecord &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QDnsTextRecord &operator=(QDnsTextRecord &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QDnsTextRecord &operator=(QDnsTextRecord &&other) noexcept { swap(other); return *this; }
     QDnsTextRecord &operator=(const QDnsTextRecord &other);
     ~QDnsTextRecord();
 
-    void swap(QDnsTextRecord &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QDnsTextRecord &other) noexcept { qSwap(d, other.d); }
 
     QString name() const;
     quint32 timeToLive() const;
diff --git a/src/network/kernel/qdnslookup_p.h b/src/network/kernel/qdnslookup_p.h
index 2dc98e527a..8c3c2ed3e1 100644
--- a/src/network/kernel/qdnslookup_p.h
+++ b/src/network/kernel/qdnslookup_p.h
@@ -95,7 +95,7 @@ public:
     QDnsLookupPrivate()
         : isFinished(false)
         , type(QDnsLookup::A)
-        , runnable(0)
+        , runnable(nullptr)
     { }
 
     void _q_lookupFinished(const QDnsLookupReply &reply);
diff --git a/src/network/kernel/qhostaddress.cpp b/src/network/kernel/qhostaddress.cpp
index 5d0ef150f3..b54fb349fb 100644
--- a/src/network/kernel/qhostaddress.cpp
+++ b/src/network/kernel/qhostaddress.cpp
@@ -1333,7 +1333,7 @@ QDebug operator<<(QDebug d, const QHostAddress &address)
     \relates QHostAddress
     Returns a hash of the host address \a key, using \a seed to seed the calculation.
 */
-uint qHash(const QHostAddress &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QHostAddress &key, uint seed) noexcept
 {
     return qHashBits(key.d->a6.c, 16, seed);
 }
diff --git a/src/network/kernel/qhostaddress.h b/src/network/kernel/qhostaddress.h
index 00555f3d8e..799247695e 100644
--- a/src/network/kernel/qhostaddress.h
+++ b/src/network/kernel/qhostaddress.h
@@ -66,7 +66,7 @@ typedef QIPv6Address Q_IPV6ADDR;
 
 class QHostAddress;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed = 0) noexcept;
 
 class Q_NETWORK_EXPORT QHostAddress
 {
@@ -102,11 +102,8 @@ public:
     QHostAddress(SpecialAddress address);
     ~QHostAddress();
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    QHostAddress &operator=(QHostAddress &&other) Q_DECL_NOTHROW
+    QHostAddress &operator=(QHostAddress &&other) noexcept
     { swap(other); return *this; }
-#endif
-
     QHostAddress &operator=(const QHostAddress &other);
 #if QT_DEPRECATED_SINCE(5, 8)
     QT_DEPRECATED_X("use = QHostAddress(string) instead")
@@ -114,7 +111,7 @@ public:
 #endif
     QHostAddress &operator=(SpecialAddress address);
 
-    void swap(QHostAddress &other) Q_DECL_NOTHROW { d.swap(other.d); }
+    void swap(QHostAddress &other) noexcept { d.swap(other.d); }
 
     void setAddress(quint32 ip4Addr);
     void setAddress(quint8 *ip6Addr);   // ### Qt 6: remove me
@@ -157,7 +154,7 @@ public:
 
     static QPair<QHostAddress, int> parseSubnet(const QString &subnet);
 
-    friend Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed) noexcept;
 protected:
     friend class QHostAddressPrivate;
     QExplicitlySharedDataPointer<QHostAddressPrivate> d;
diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp
index 4b5acc1c53..9374728244 100644
--- a/src/network/kernel/qhostinfo.cpp
+++ b/src/network/kernel/qhostinfo.cpp
@@ -37,8 +37,11 @@
 **
 ****************************************************************************/
 
+//#define QHOSTINFO_DEBUG
+
 #include "qhostinfo.h"
 #include "qhostinfo_p.h"
+#include <qplatformdefs.h>
 
 #include "QtCore/qscopedpointer.h"
 #include <qabstracteventdispatcher.h>
@@ -53,6 +56,15 @@
 
 #ifdef Q_OS_UNIX
 #  include <unistd.h>
+#  include <netdb.h>
+#  include <netinet/in.h>
+#  if defined(AI_ADDRCONFIG)
+#    define Q_ADDRCONFIG          AI_ADDRCONFIG
+#  endif
+#elif defined Q_OS_WIN
+#  include <ws2tcpip.h>
+
+#  define QT_SOCKLEN_T int
 #endif
 
 QT_BEGIN_NAMESPACE
@@ -64,8 +76,8 @@ Q_GLOBAL_STATIC(QHostInfoLookupManager, theHostInfoLookupManager)
 namespace {
 struct ToBeLookedUpEquals {
     typedef bool result_type;
-    explicit ToBeLookedUpEquals(const QString &toBeLookedUp) Q_DECL_NOTHROW : m_toBeLookedUp(toBeLookedUp) {}
-    result_type operator()(QHostInfoRunnable* lookup) const Q_DECL_NOTHROW
+    explicit ToBeLookedUpEquals(const QString &toBeLookedUp) noexcept : m_toBeLookedUp(toBeLookedUp) {}
+    result_type operator()(QHostInfoRunnable* lookup) const noexcept
     {
         return m_toBeLookedUp == lookup->toBeLookedUp;
     }
@@ -412,6 +424,162 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName, QSharedPointer<QNetw
 }
 #endif
 
+QHostInfo QHostInfoAgent::reverseLookup(const QHostAddress &address)
+{
+    QHostInfo results;
+    // Reverse lookup
+    sockaddr_in sa4;
+    sockaddr_in6 sa6;
+    sockaddr *sa = 0;
+    QT_SOCKLEN_T saSize;
+    if (address.protocol() == QAbstractSocket::IPv4Protocol) {
+        sa = reinterpret_cast<sockaddr *>(&sa4);
+        saSize = sizeof(sa4);
+        memset(&sa4, 0, sizeof(sa4));
+        sa4.sin_family = AF_INET;
+        sa4.sin_addr.s_addr = htonl(address.toIPv4Address());
+    } else {
+        sa = reinterpret_cast<sockaddr *>(&sa6);
+        saSize = sizeof(sa6);
+        memset(&sa6, 0, sizeof(sa6));
+        sa6.sin6_family = AF_INET6;
+        memcpy(&sa6.sin6_addr, address.toIPv6Address().c, sizeof(sa6.sin6_addr));
+    }
+
+    char hbuf[NI_MAXHOST];
+    if (sa && getnameinfo(sa, saSize, hbuf, sizeof(hbuf), nullptr, 0, 0) == 0)
+        results.setHostName(QString::fromLatin1(hbuf));
+
+    if (results.hostName().isEmpty())
+        results.setHostName(address.toString());
+    results.setAddresses(QList<QHostAddress>() << address);
+
+    return results;
+}
+
+/*
+    Call getaddrinfo, and returns the results as QHostInfo::addresses
+*/
+QHostInfo QHostInfoAgent::lookup(const QString &hostName)
+{
+    QHostInfo results;
+
+    // IDN support
+    QByteArray aceHostname = QUrl::toAce(hostName);
+    results.setHostName(hostName);
+    if (aceHostname.isEmpty()) {
+        results.setError(QHostInfo::HostNotFound);
+        results.setErrorString(hostName.isEmpty() ?
+                               QCoreApplication::translate("QHostInfoAgent", "No host name given") :
+                               QCoreApplication::translate("QHostInfoAgent", "Invalid hostname"));
+        return results;
+    }
+
+    addrinfo *res = 0;
+    struct addrinfo hints;
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = PF_UNSPEC;
+#ifdef Q_ADDRCONFIG
+    hints.ai_flags = Q_ADDRCONFIG;
+#endif
+
+    int result = getaddrinfo(aceHostname.constData(), nullptr, &hints, &res);
+# ifdef Q_ADDRCONFIG
+    if (result == EAI_BADFLAGS) {
+        // if the lookup failed with AI_ADDRCONFIG set, try again without it
+        hints.ai_flags = 0;
+        result = getaddrinfo(aceHostname.constData(), nullptr, &hints, &res);
+    }
+# endif
+
+    if (result == 0) {
+        addrinfo *node = res;
+        QList<QHostAddress> addresses;
+        while (node) {
+#ifdef QHOSTINFO_DEBUG
+            qDebug() << "getaddrinfo node: flags:" << node->ai_flags << "family:" << node->ai_family
+                     << "ai_socktype:" << node->ai_socktype << "ai_protocol:" << node->ai_protocol
+                     << "ai_addrlen:" << node->ai_addrlen;
+#endif
+            switch (node->ai_family) {
+            case AF_INET: {
+                QHostAddress addr;
+                addr.setAddress(ntohl(((sockaddr_in *) node->ai_addr)->sin_addr.s_addr));
+                if (!addresses.contains(addr))
+                    addresses.append(addr);
+                break;
+            }
+            case AF_INET6: {
+                QHostAddress addr;
+                sockaddr_in6 *sa6 = (sockaddr_in6 *) node->ai_addr;
+                addr.setAddress(sa6->sin6_addr.s6_addr);
+                if (sa6->sin6_scope_id)
+                    addr.setScopeId(QString::number(sa6->sin6_scope_id));
+                if (!addresses.contains(addr))
+                    addresses.append(addr);
+                break;
+            }
+            default:
+                results.setError(QHostInfo::UnknownError);
+                results.setErrorString(QCoreApplication::translate("QHostInfoAgent", "Unknown address type"));
+            }
+            node = node->ai_next;
+        }
+        if (addresses.isEmpty()) {
+            // Reached the end of the list, but no addresses were found; this
+            // means the list contains one or more unknown address types.
+            results.setError(QHostInfo::UnknownError);
+            results.setErrorString(QCoreApplication::translate("QHostInfoAgent", "Unknown address type"));
+        }
+
+        results.setAddresses(addresses);
+        freeaddrinfo(res);
+    } else {
+        switch (result) {
+#ifdef Q_OS_WIN
+        case WSAHOST_NOT_FOUND: //authoritative not found
+        case WSATRY_AGAIN: //non authoritative not found
+        case WSANO_DATA: //valid name, no associated address
+#else
+        case EAI_NONAME:
+        case EAI_FAIL:
+#  ifdef EAI_NODATA // EAI_NODATA is deprecated in RFC 3493
+        case EAI_NODATA:
+#  endif
+#endif
+            results.setError(QHostInfo::HostNotFound);
+            results.setErrorString(QCoreApplication::translate("QHostInfoAgent", "Host not found"));
+            break;
+        default:
+            results.setError(QHostInfo::UnknownError);
+#ifdef Q_OS_WIN
+            results.setErrorString(QString::fromWCharArray(gai_strerror(result)));
+#else
+            results.setErrorString(QString::fromLocal8Bit(gai_strerror(result)));
+#endif
+            break;
+        }
+    }
+
+#if defined(QHOSTINFO_DEBUG)
+    if (results.error() != QHostInfo::NoError) {
+        qDebug("QHostInfoAgent::fromName(): error #%d %s",
+               h_errno, results.errorString().toLatin1().constData());
+    } else {
+        QString tmp;
+        QList<QHostAddress> addresses = results.addresses();
+        for (int i = 0; i < addresses.count(); ++i) {
+            if (i != 0) tmp += QLatin1String(", ");
+            tmp += addresses.at(i).toString();
+        }
+        qDebug("QHostInfoAgent::fromName(): found %i entries for \"%s\": {%s}",
+               addresses.count(), aceHostname.constData(),
+               tmp.toLatin1().constData());
+    }
+#endif
+
+    return results;
+}
 
 /*!
     \enum QHostInfo::HostInfoError
diff --git a/src/network/kernel/qhostinfo.h b/src/network/kernel/qhostinfo.h
index 49871ad470..dc31cc08e4 100644
--- a/src/network/kernel/qhostinfo.h
+++ b/src/network/kernel/qhostinfo.h
@@ -63,10 +63,10 @@ public:
     explicit QHostInfo(int lookupId = -1);
     QHostInfo(const QHostInfo &d);
     QHostInfo &operator=(const QHostInfo &d);
-    QHostInfo &operator=(QHostInfo &&other) Q_DECL_NOTHROW { swap(other); return *this; }
+    QHostInfo &operator=(QHostInfo &&other) noexcept { swap(other); return *this; }
     ~QHostInfo();
 
-    void swap(QHostInfo &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QHostInfo &other) noexcept { qSwap(d, other.d); }
 
     QString hostName() const;
     void setHostName(const QString &name);
diff --git a/src/network/kernel/qhostinfo_p.h b/src/network/kernel/qhostinfo_p.h
index 8cce302166..3c0ee2a0d8 100644
--- a/src/network/kernel/qhostinfo_p.h
+++ b/src/network/kernel/qhostinfo_p.h
@@ -101,7 +101,7 @@ public Q_SLOTS:
     {
         if (slotObj) {
             QHostInfo copy = info;
-            void *args[2] = { 0, reinterpret_cast<void *>(&copy) };
+            void *args[2] = { nullptr, reinterpret_cast<void *>(&copy) };
             slotObj->call(const_cast<QObject*>(receiver.data()), args);
             slotObj->destroyIfLastRef();
         } else {
@@ -127,15 +127,16 @@ Q_SIGNALS:
     void resultsReady(const QHostInfo &info);
 };
 
-// needs to be QObject because fromName calls tr()
-class QHostInfoAgent : public QObject
+class QHostInfoAgent
 {
-    Q_OBJECT
 public:
     static QHostInfo fromName(const QString &hostName);
 #ifndef QT_NO_BEARERMANAGEMENT
     static QHostInfo fromName(const QString &hostName, QSharedPointer<QNetworkSession> networkSession);
 #endif
+private:
+    static QHostInfo lookup(const QString &hostName);
+    static QHostInfo reverseLookup(const QHostAddress &address);
 };
 
 class QHostInfoPrivate
diff --git a/src/network/kernel/qhostinfo_unix.cpp b/src/network/kernel/qhostinfo_unix.cpp
index e4810d68ee..78a05f8407 100644
--- a/src/network/kernel/qhostinfo_unix.cpp
+++ b/src/network/kernel/qhostinfo_unix.cpp
@@ -72,17 +72,6 @@
 
 QT_BEGIN_NAMESPACE
 
-// Almost always the same. If not, specify in qplatformdefs.h.
-#if !defined(QT_SOCKOPTLEN_T)
-# define QT_SOCKOPTLEN_T QT_SOCKLEN_T
-#endif
-
-// HP-UXi has a bug in getaddrinfo(3) that makes it thread-unsafe
-// with this flag. So disable it in that platform.
-#if defined(AI_ADDRCONFIG) && !defined(Q_OS_HPUX)
-#  define Q_ADDRCONFIG          AI_ADDRCONFIG
-#endif
-
 enum LibResolvFeature {
     NeedResInit,
     NeedResNInit
@@ -197,132 +186,10 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
         local_res_init();
 
     QHostAddress address;
-    if (address.setAddress(hostName)) {
-        // Reverse lookup
-        sockaddr_in sa4;
-        sockaddr_in6 sa6;
-        sockaddr *sa = 0;
-        QT_SOCKLEN_T saSize = 0;
-        if (address.protocol() == QAbstractSocket::IPv4Protocol) {
-            sa = (sockaddr *)&sa4;
-            saSize = sizeof(sa4);
-            memset(&sa4, 0, sizeof(sa4));
-            sa4.sin_family = AF_INET;
-            sa4.sin_addr.s_addr = htonl(address.toIPv4Address());
-        }
-        else {
-            sa = (sockaddr *)&sa6;
-            saSize = sizeof(sa6);
-            memset(&sa6, 0, sizeof(sa6));
-            sa6.sin6_family = AF_INET6;
-            memcpy(sa6.sin6_addr.s6_addr, address.toIPv6Address().c, sizeof(sa6.sin6_addr.s6_addr));
-        }
-
-        char hbuf[NI_MAXHOST];
-        if (sa && getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) == 0)
-            results.setHostName(QString::fromLatin1(hbuf));
-
-        if (results.hostName().isEmpty())
-            results.setHostName(address.toString());
-        results.setAddresses(QList<QHostAddress>() << address);
-        return results;
-    }
-
-    // IDN support
-    QByteArray aceHostname = QUrl::toAce(hostName);
-    results.setHostName(hostName);
-    if (aceHostname.isEmpty()) {
-        results.setError(QHostInfo::HostNotFound);
-        results.setErrorString(hostName.isEmpty() ?
-                               QCoreApplication::translate("QHostInfoAgent", "No host name given") :
-                               QCoreApplication::translate("QHostInfoAgent", "Invalid hostname"));
-        return results;
-    }
-
-    // Call getaddrinfo, and place all IPv4 addresses at the start and
-    // the IPv6 addresses at the end of the address list in results.
-    addrinfo *res = 0;
-    struct addrinfo hints;
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_family = PF_UNSPEC;
-#ifdef Q_ADDRCONFIG
-    hints.ai_flags = Q_ADDRCONFIG;
-#endif
+    if (address.setAddress(hostName))
+        return reverseLookup(address);
 
-    int result = getaddrinfo(aceHostname.constData(), 0, &hints, &res);
-# ifdef Q_ADDRCONFIG
-    if (result == EAI_BADFLAGS) {
-        // if the lookup failed with AI_ADDRCONFIG set, try again without it
-        hints.ai_flags = 0;
-        result = getaddrinfo(aceHostname.constData(), 0, &hints, &res);
-    }
-# endif
-
-    if (result == 0) {
-        addrinfo *node = res;
-        QList<QHostAddress> addresses;
-        while (node) {
-#ifdef QHOSTINFO_DEBUG
-                qDebug() << "getaddrinfo node: flags:" << node->ai_flags << "family:" << node->ai_family << "ai_socktype:" << node->ai_socktype << "ai_protocol:" << node->ai_protocol << "ai_addrlen:" << node->ai_addrlen;
-#endif
-            if (node->ai_family == AF_INET) {
-                QHostAddress addr;
-                addr.setAddress(ntohl(((sockaddr_in *) node->ai_addr)->sin_addr.s_addr));
-                if (!addresses.contains(addr))
-                    addresses.append(addr);
-            }
-            else if (node->ai_family == AF_INET6) {
-                QHostAddress addr;
-                sockaddr_in6 *sa6 = (sockaddr_in6 *) node->ai_addr;
-                addr.setAddress(sa6->sin6_addr.s6_addr);
-                if (sa6->sin6_scope_id)
-                    addr.setScopeId(QString::number(sa6->sin6_scope_id));
-                if (!addresses.contains(addr))
-                    addresses.append(addr);
-            }
-            node = node->ai_next;
-        }
-        if (addresses.isEmpty() && node == 0) {
-            // Reached the end of the list, but no addresses were found; this
-            // means the list contains one or more unknown address types.
-            results.setError(QHostInfo::UnknownError);
-            results.setErrorString(tr("Unknown address type"));
-        }
-
-        results.setAddresses(addresses);
-        freeaddrinfo(res);
-    } else if (result == EAI_NONAME
-               || result ==  EAI_FAIL
-#ifdef EAI_NODATA
-               // EAI_NODATA is deprecated in RFC 3493
-               || result == EAI_NODATA
-#endif
-               ) {
-        results.setError(QHostInfo::HostNotFound);
-        results.setErrorString(tr("Host not found"));
-    } else {
-        results.setError(QHostInfo::UnknownError);
-        results.setErrorString(QString::fromLocal8Bit(gai_strerror(result)));
-    }
-
-
-#if defined(QHOSTINFO_DEBUG)
-    if (results.error() != QHostInfo::NoError) {
-        qDebug("QHostInfoAgent::fromName(): error #%d %s",
-               h_errno, results.errorString().toLatin1().constData());
-    } else {
-        QString tmp;
-        QList<QHostAddress> addresses = results.addresses();
-        for (int i = 0; i < addresses.count(); ++i) {
-            if (i != 0) tmp += ", ";
-            tmp += addresses.at(i).toString();
-        }
-        qDebug("QHostInfoAgent::fromName(): found %i entries for \"%s\": {%s}",
-               addresses.count(), hostName.toLatin1().constData(),
-               tmp.toLatin1().constData());
-    }
-#endif
-    return results;
+    return lookup(hostName);
 }
 
 QString QHostInfo::localDomainName()
diff --git a/src/network/kernel/qhostinfo_win.cpp b/src/network/kernel/qhostinfo_win.cpp
index c51e9968f8..0b5cc98970 100644
--- a/src/network/kernel/qhostinfo_win.cpp
+++ b/src/network/kernel/qhostinfo_win.cpp
@@ -51,27 +51,10 @@ QT_BEGIN_NAMESPACE
 //#define QHOSTINFO_DEBUG
 
 //###
-#define QT_SOCKLEN_T int
 #ifndef NI_MAXHOST // already defined to 1025 in ws2tcpip.h?
 #define NI_MAXHOST 1024
 #endif
 
-static void translateWSAError(int error, QHostInfo *results)
-{
-    switch (error) {
-    case WSAHOST_NOT_FOUND: //authoritative not found
-    case WSATRY_AGAIN: //non authoritative not found
-    case WSANO_DATA: //valid name, no associated address
-        results->setError(QHostInfo::HostNotFound);
-        results->setErrorString(QHostInfoAgent::tr("Host not found"));
-        return;
-    default:
-        results->setError(QHostInfo::UnknownError);
-        results->setErrorString(QHostInfoAgent::tr("Unknown error (%1)").arg(error));
-        return;
-    }
-}
-
 QHostInfo QHostInfoAgent::fromName(const QString &hostName)
 {
     QSysInfo::machineHostName();        // this initializes ws2_32.dll
@@ -79,98 +62,15 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
     QHostInfo results;
 
 #if defined(QHOSTINFO_DEBUG)
-    qDebug("QHostInfoAgent::fromName(): looking up \"%s\" (IPv6 support is %s)",
-           hostName.toLatin1().constData(),
-           (getaddrinfo && freeaddrinfo) ? "enabled" : "disabled");
+    qDebug("QHostInfoAgent::fromName(%s) looking up...",
+           hostName.toLatin1().constData());
 #endif
 
     QHostAddress address;
-    if (address.setAddress(hostName)) {
-        // Reverse lookup
-        sockaddr_in sa4;
-        sockaddr_in6 sa6;
-        sockaddr *sa;
-        QT_SOCKLEN_T saSize;
-        if (address.protocol() == QAbstractSocket::IPv4Protocol) {
-            sa = reinterpret_cast<sockaddr *>(&sa4);
-            saSize = sizeof(sa4);
-            memset(&sa4, 0, sizeof(sa4));
-            sa4.sin_family = AF_INET;
-            sa4.sin_addr.s_addr = htonl(address.toIPv4Address());
-        } else {
-            sa = reinterpret_cast<sockaddr *>(&sa6);
-            saSize = sizeof(sa6);
-            memset(&sa6, 0, sizeof(sa6));
-            sa6.sin6_family = AF_INET6;
-            memcpy(&sa6.sin6_addr, address.toIPv6Address().c, sizeof(sa6.sin6_addr));
-        }
-
-        char hbuf[NI_MAXHOST];
-        if (getnameinfo(sa, saSize, hbuf, sizeof(hbuf), 0, 0, 0) == 0)
-            results.setHostName(QString::fromLatin1(hbuf));
-
-        if (results.hostName().isEmpty())
-            results.setHostName(address.toString());
-        results.setAddresses(QList<QHostAddress>() << address);
-        return results;
-    }
+    if (address.setAddress(hostName))
+        return reverseLookup(address);
 
-    // IDN support
-    QByteArray aceHostname = QUrl::toAce(hostName);
-    results.setHostName(hostName);
-    if (aceHostname.isEmpty()) {
-        results.setError(QHostInfo::HostNotFound);
-        results.setErrorString(hostName.isEmpty() ? tr("No host name given") : tr("Invalid hostname"));
-        return results;
-    }
-
-    addrinfo *res;
-    int err = getaddrinfo(aceHostname.constData(), 0, 0, &res);
-    if (err == 0) {
-        QList<QHostAddress> addresses;
-        for (addrinfo *p = res; p != 0; p = p->ai_next) {
-            switch (p->ai_family) {
-            case AF_INET: {
-                QHostAddress addr;
-                addr.setAddress(ntohl(reinterpret_cast<sockaddr_in *>(p->ai_addr)->sin_addr.s_addr));
-                if (!addresses.contains(addr))
-                    addresses.append(addr);
-            }
-                break;
-            case AF_INET6: {
-                QHostAddress addr;
-                addr.setAddress(reinterpret_cast<const sockaddr_in6 *>(p->ai_addr)->sin6_addr.s6_addr);
-                if (!addresses.contains(addr))
-                    addresses.append(addr);
-            }
-                break;
-            default:
-                results.setError(QHostInfo::UnknownError);
-                results.setErrorString(tr("Unknown address type"));
-            }
-        }
-        results.setAddresses(addresses);
-        freeaddrinfo(res);
-    } else {
-        translateWSAError(WSAGetLastError(), &results);
-    }
-
-#if defined(QHOSTINFO_DEBUG)
-    if (results.error() != QHostInfo::NoError) {
-        qDebug("QHostInfoAgent::run(): error (%s)",
-               results.errorString().toLatin1().constData());
-    } else {
-        QString tmp;
-        QList<QHostAddress> addresses = results.addresses();
-        for (int i = 0; i < addresses.count(); ++i) {
-            if (i != 0) tmp += ", ";
-            tmp += addresses.at(i).toString();
-        }
-        qDebug("QHostInfoAgent::run(): found %i entries: {%s}",
-               addresses.count(), tmp.toLatin1().constData());
-    }
-#endif
-    return results;
+    return lookup(hostName);
 }
 
 // QString QHostInfo::localDomainName() defined in qnetworkinterface_win.cpp
diff --git a/src/network/kernel/qnetconmonitor_darwin.mm b/src/network/kernel/qnetconmonitor_darwin.mm
new file mode 100644
index 0000000000..a64cd6e530
--- /dev/null
+++ b/src/network/kernel/qnetconmonitor_darwin.mm
@@ -0,0 +1,419 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "private/qnativesocketengine_p.h"
+#include "private/qnetconmonitor_p.h"
+
+#include "private/qobject_p.h"
+
+#include <SystemConfiguration/SystemConfiguration.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+#include <netinet/in.h>
+
+#include <cstring>
+
+QT_BEGIN_NAMESPACE
+
+Q_LOGGING_CATEGORY(lcNetMon, "qt.network.monitor");
+
+namespace {
+
+class ReachabilityDispatchQueue
+{
+public:
+    ReachabilityDispatchQueue()
+    {
+        queue = dispatch_queue_create("qt-network-reachability-queue", nullptr);
+        if (!queue)
+            qCWarning(lcNetMon, "Failed to create a dispatch queue for reachability probes");
+    }
+
+    ~ReachabilityDispatchQueue()
+    {
+        if (queue)
+            dispatch_release(queue);
+    }
+
+    dispatch_queue_t data() const
+    {
+        return queue;
+    }
+
+private:
+    dispatch_queue_t queue = nullptr;
+
+    Q_DISABLE_COPY_MOVE(ReachabilityDispatchQueue)
+};
+
+dispatch_queue_t qt_reachability_queue()
+{
+    static const ReachabilityDispatchQueue reachabilityQueue;
+    return reachabilityQueue.data();
+}
+
+qt_sockaddr qt_hostaddress_to_sockaddr(const QHostAddress &src)
+{
+    if (src.isNull())
+        return {};
+
+    qt_sockaddr dst;
+    if (src.protocol() == QAbstractSocket::IPv4Protocol) {
+        dst.a4 = sockaddr_in{};
+        dst.a4.sin_family = AF_INET;
+        dst.a4.sin_addr.s_addr = htonl(src.toIPv4Address());
+        dst.a4.sin_len = sizeof(sockaddr_in);
+    } else if (src.protocol() == QAbstractSocket::IPv6Protocol) {
+        dst.a6 = sockaddr_in6{};
+        dst.a6.sin6_family = AF_INET6;
+        dst.a6.sin6_len = sizeof(sockaddr_in6);
+        const Q_IPV6ADDR ipv6 = src.toIPv6Address();
+        std::memcpy(&dst.a6.sin6_addr, &ipv6, sizeof ipv6);
+    } else {
+        Q_UNREACHABLE();
+    }
+
+    return dst;
+}
+
+} // unnamed namespace
+
+class QNetworkConnectionMonitorPrivate : public QObjectPrivate
+{
+public:
+    SCNetworkReachabilityRef probe = nullptr;
+    SCNetworkReachabilityFlags state = kSCNetworkReachabilityFlagsIsLocalAddress;
+    bool scheduled = false;
+
+    void updateState(SCNetworkReachabilityFlags newState);
+    void reset();
+    bool isReachable() const;
+
+    static void probeCallback(SCNetworkReachabilityRef probe, SCNetworkReachabilityFlags flags, void *info);
+
+    Q_DECLARE_PUBLIC(QNetworkConnectionMonitor)
+};
+
+void QNetworkConnectionMonitorPrivate::updateState(SCNetworkReachabilityFlags newState)
+{
+    // To be executed only on the reachability queue.
+    Q_Q(QNetworkConnectionMonitor);
+
+    // NETMONTODO: for now, 'online' for us means kSCNetworkReachabilityFlagsReachable
+    // is set. There are more possible flags that require more tests/some special
+    // setup. So in future this part and related can change/be extended.
+    const bool wasReachable = isReachable();
+    state = newState;
+    if (wasReachable != isReachable())
+        emit q->reachabilityChanged(isReachable());
+}
+
+void QNetworkConnectionMonitorPrivate::reset()
+{
+    if (probe) {
+        CFRelease(probe);
+        probe = nullptr;
+    }
+
+    state = kSCNetworkReachabilityFlagsIsLocalAddress;
+    scheduled = false;
+}
+
+bool QNetworkConnectionMonitorPrivate::isReachable() const
+{
+    return !!(state & kSCNetworkReachabilityFlagsReachable);
+}
+
+void QNetworkConnectionMonitorPrivate::probeCallback(SCNetworkReachabilityRef probe, SCNetworkReachabilityFlags flags, void *info)
+{
+    // To be executed only on the reachability queue.
+    Q_UNUSED(probe);
+
+    auto monitorPrivate = static_cast<QNetworkConnectionMonitorPrivate *>(info);
+    Q_ASSERT(monitorPrivate);
+    monitorPrivate->updateState(flags);
+}
+
+QNetworkConnectionMonitor::QNetworkConnectionMonitor()
+    : QObject(*new QNetworkConnectionMonitorPrivate)
+{
+}
+
+QNetworkConnectionMonitor::QNetworkConnectionMonitor(const QHostAddress &local, const QHostAddress &remote)
+    : QObject(*new QNetworkConnectionMonitorPrivate)
+{
+    setTargets(local, remote);
+}
+
+QNetworkConnectionMonitor::~QNetworkConnectionMonitor()
+{
+    Q_D(QNetworkConnectionMonitor);
+
+    stopMonitoring();
+    d->reset();
+}
+
+bool QNetworkConnectionMonitor::setTargets(const QHostAddress &local, const QHostAddress &remote)
+{
+    Q_D(QNetworkConnectionMonitor);
+
+    if (isMonitoring()) {
+        qCWarning(lcNetMon, "Monitor is already active, call stopMonitoring() first");
+        return false;
+    }
+
+    if (local.isNull()) {
+        qCWarning(lcNetMon, "Invalid (null) local address, cannot create a reachability target");
+        return false;
+    }
+
+    // Clear the old target if needed:
+    d->reset();
+
+    qt_sockaddr client = qt_hostaddress_to_sockaddr(local);
+    if (remote.isNull()) {
+        // That's a special case our QNetworkStatusMonitor is using (AnyIpv4/6 address to check an overall status).
+        d->probe = SCNetworkReachabilityCreateWithAddress(kCFAllocatorDefault, reinterpret_cast<sockaddr *>(&client));
+    } else {
+        qt_sockaddr target = qt_hostaddress_to_sockaddr(remote);
+        d->probe = SCNetworkReachabilityCreateWithAddressPair(kCFAllocatorDefault,
+                                                              reinterpret_cast<sockaddr *>(&client),
+                                                              reinterpret_cast<sockaddr *>(&target));
+    }
+
+    if (d->probe) {
+        // Let's read the initial state so that callback coming later can
+        // see a difference. Ignore errors though.
+        SCNetworkReachabilityGetFlags(d->probe, &d->state);
+    }else {
+        qCWarning(lcNetMon, "Failed to create network reachability probe");
+        return false;
+    }
+
+    return true;
+}
+
+bool QNetworkConnectionMonitor::startMonitoring()
+{
+    Q_D(QNetworkConnectionMonitor);
+
+    if (isMonitoring()) {
+        qCWarning(lcNetMon, "Monitor is already active, call stopMonitoring() first");
+        return false;
+    }
+
+    if (!d->probe) {
+        qCWarning(lcNetMon, "Can not start monitoring, set targets first");
+        return false;
+    }
+
+    auto queue = qt_reachability_queue();
+    if (!queue) {
+        qWarning(lcNetMon, "Failed to create a dispatch queue to schedule a probe on");
+        return false;
+    }
+
+    SCNetworkReachabilityContext context = {};
+    context.info = d;
+    if (!SCNetworkReachabilitySetCallback(d->probe, QNetworkConnectionMonitorPrivate::probeCallback, &context)) {
+        qWarning(lcNetMon, "Failed to set a reachability callback");
+        return false;
+    }
+
+
+    if (!SCNetworkReachabilitySetDispatchQueue(d->probe, queue)) {
+        qWarning(lcNetMon, "Failed to schedule a reachability callback on a queue");
+        return false;
+    }
+
+    return d->scheduled = true;
+}
+
+bool QNetworkConnectionMonitor::isMonitoring() const
+{
+    Q_D(const QNetworkConnectionMonitor);
+
+    return d->scheduled;
+}
+
+void QNetworkConnectionMonitor::stopMonitoring()
+{
+    Q_D(QNetworkConnectionMonitor);
+
+    if (d->scheduled) {
+        Q_ASSERT(d->probe);
+        SCNetworkReachabilitySetDispatchQueue(d->probe, nullptr);
+        SCNetworkReachabilitySetCallback(d->probe, nullptr, nullptr);
+        d->scheduled = false;
+    }
+}
+
+bool QNetworkConnectionMonitor::isReachable()
+{
+    Q_D(QNetworkConnectionMonitor);
+
+    if (isMonitoring()) {
+        qCWarning(lcNetMon, "Calling isReachable() is unsafe after the monitoring started");
+        return false;
+    }
+
+    if (!d->probe) {
+        qCWarning(lcNetMon, "Reachability is unknown, set the target first");
+        return false;
+    }
+
+    return d->isReachable();
+}
+
+class QNetworkStatusMonitorPrivate : public QObjectPrivate
+{
+public:
+    QNetworkConnectionMonitor ipv4Probe;
+    bool isOnlineIpv4 = false;
+    QNetworkConnectionMonitor ipv6Probe;
+    bool isOnlineIpv6 = false;
+};
+
+QNetworkStatusMonitor::QNetworkStatusMonitor()
+    : QObject(*new QNetworkStatusMonitorPrivate)
+{
+    Q_D(QNetworkStatusMonitor);
+
+    if (d->ipv4Probe.setTargets(QHostAddress::AnyIPv4, {})) {
+        // We manage to create SCNetworkReachabilityRef for IPv4, let's
+        // read the last known state then!
+        d->isOnlineIpv4 = d->ipv4Probe.isReachable();
+    }
+
+    if (d->ipv6Probe.setTargets(QHostAddress::AnyIPv6, {})) {
+        // We manage to create SCNetworkReachability ref for IPv6, let's
+        // read the last known state then!
+        d->isOnlineIpv6 = d->ipv6Probe.isReachable();
+    }
+
+
+    connect(&d->ipv4Probe, &QNetworkConnectionMonitor::reachabilityChanged, this,
+            &QNetworkStatusMonitor::reachabilityChanged, Qt::QueuedConnection);
+    connect(&d->ipv6Probe, &QNetworkConnectionMonitor::reachabilityChanged, this,
+            &QNetworkStatusMonitor::reachabilityChanged, Qt::QueuedConnection);
+}
+
+QNetworkStatusMonitor::~QNetworkStatusMonitor()
+{
+    Q_D(QNetworkStatusMonitor);
+
+    d->ipv4Probe.disconnect();
+    d->ipv4Probe.stopMonitoring();
+    d->ipv6Probe.disconnect();
+    d->ipv6Probe.stopMonitoring();
+}
+
+bool QNetworkStatusMonitor::start()
+{
+    Q_D(QNetworkStatusMonitor);
+
+    if (isMonitoring()) {
+        qCWarning(lcNetMon, "Network status monitor is already active");
+        return true;
+    }
+
+    d->ipv4Probe.startMonitoring();
+    d->ipv6Probe.startMonitoring();
+
+    return isMonitoring();
+}
+
+void QNetworkStatusMonitor::stop()
+{
+    Q_D(QNetworkStatusMonitor);
+
+    if (d->ipv4Probe.isMonitoring())
+        d->ipv4Probe.stopMonitoring();
+    if (d->ipv6Probe.isMonitoring())
+        d->ipv6Probe.stopMonitoring();
+}
+
+bool QNetworkStatusMonitor::isMonitoring() const
+{
+    Q_D(const QNetworkStatusMonitor);
+
+    return d->ipv4Probe.isMonitoring() || d->ipv6Probe.isMonitoring();
+}
+
+bool QNetworkStatusMonitor::isNetworkAccesible()
+{
+    // This function is to be executed on the thread that created
+    // and uses 'this'.
+    Q_D(QNetworkStatusMonitor);
+
+    return d->isOnlineIpv4 || d->isOnlineIpv6;
+}
+
+bool QNetworkStatusMonitor::isEnabled()
+{
+    return true;
+}
+
+void QNetworkStatusMonitor::reachabilityChanged(bool online)
+{
+    // This function is executed on the thread that created/uses 'this',
+    // not on the reachability queue.
+    Q_D(QNetworkStatusMonitor);
+
+    auto probe = qobject_cast<QNetworkConnectionMonitor *>(sender());
+    if (!probe)
+        return;
+
+    const bool isIpv4 = probe == &d->ipv4Probe;
+    bool &probeOnline = isIpv4 ? d->isOnlineIpv4 : d->isOnlineIpv6;
+    bool otherOnline = isIpv4 ? d->isOnlineIpv6 : d->isOnlineIpv4;
+
+    if (probeOnline == online) {
+        // We knew this already?
+        return;
+    }
+
+    probeOnline = online;
+    if (!otherOnline) {
+        // We either just lost or got a network access.
+        emit onlineStateChanged(probeOnline);
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/network/kernel/qnetconmonitor_p.h b/src/network/kernel/qnetconmonitor_p.h
new file mode 100644
index 0000000000..74ee56d422
--- /dev/null
+++ b/src/network/kernel/qnetconmonitor_p.h
@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QNETCONMONITOR_P_H
+#define QNETCONMONITOR_P_H
+
+#include <private/qtnetworkglobal_p.h>
+
+#include <QtCore/qloggingcategory.h>
+#include <QtNetwork/qhostaddress.h>
+#include <QtCore/qglobal.h>
+#include <QtCore/qobject.h>
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+class QNetworkConnectionMonitorPrivate;
+class QNetworkConnectionMonitor : public QObject
+{
+    Q_OBJECT
+
+public:
+    QNetworkConnectionMonitor();
+    QNetworkConnectionMonitor(const QHostAddress &local, const QHostAddress &remote = {});
+    ~QNetworkConnectionMonitor();
+
+    bool setTargets(const QHostAddress &local, const QHostAddress &remote);
+    bool isReachable();
+
+    // Important: on Darwin you should not call isReachable() after
+    // startMonitoring(), you have to listen to reachabilityChanged()
+    // signal instead.
+    bool startMonitoring();
+    bool isMonitoring() const;
+    void stopMonitoring();
+
+Q_SIGNALS:
+    // Important: connect to this using QueuedConnection. On Darwin
+    // callback is coming on a special dispatch queue.
+    void reachabilityChanged(bool isOnline);
+
+private:
+    Q_DECLARE_PRIVATE(QNetworkConnectionMonitor)
+    Q_DISABLE_COPY_MOVE(QNetworkConnectionMonitor)
+};
+
+class QNetworkStatusMonitorPrivate;
+class QNetworkStatusMonitor : public QObject
+{
+    Q_OBJECT
+
+public:
+    QNetworkStatusMonitor();
+    ~QNetworkStatusMonitor();
+
+    bool isNetworkAccesible();
+
+    bool start();
+    void stop();
+    bool isMonitoring() const;
+
+    static bool isEnabled();
+
+Q_SIGNALS:
+    // Unlike QNetworkConnectionMonitor, this can be connected to directly.
+    void onlineStateChanged(bool isOnline);
+
+private slots:
+    void reachabilityChanged(bool isOnline);
+
+private:
+    Q_DECLARE_PRIVATE(QNetworkStatusMonitor)
+    Q_DISABLE_COPY_MOVE(QNetworkStatusMonitor)
+};
+
+Q_DECLARE_LOGGING_CATEGORY(lcNetMon)
+
+QT_END_NAMESPACE
+
+#endif // QNETCONMONITOR_P_H
diff --git a/src/network/kernel/qnetconmonitor_stub.cpp b/src/network/kernel/qnetconmonitor_stub.cpp
new file mode 100644
index 0000000000..7f3a0c44c6
--- /dev/null
+++ b/src/network/kernel/qnetconmonitor_stub.cpp
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qnetconmonitor_p.h"
+
+#include "private/qobject_p.h"
+
+QT_BEGIN_NAMESPACE
+
+Q_LOGGING_CATEGORY(lcNetMon, "qt.network.monitor");
+
+// Note: this 'stub' version is never enabled (see QNetworkStatusMonitor::isEnabled below)
+// and thus should never affect QNAM in any unusuall way. Having this 'stub' version is similar
+// to building Qt with bearer management configured out.
+
+class QNetworkConnectionMonitorPrivate : public QObjectPrivate
+{
+};
+
+QNetworkConnectionMonitor::QNetworkConnectionMonitor()
+    : QObject(*new QNetworkConnectionMonitorPrivate)
+{
+}
+
+QNetworkConnectionMonitor::QNetworkConnectionMonitor(const QHostAddress &local, const QHostAddress &remote)
+    : QObject(*new QNetworkConnectionMonitorPrivate)
+{
+    Q_UNUSED(local)
+    Q_UNUSED(remote)
+}
+
+QNetworkConnectionMonitor::~QNetworkConnectionMonitor()
+{
+}
+
+bool QNetworkConnectionMonitor::setTargets(const QHostAddress &local, const QHostAddress &remote)
+{
+    Q_UNUSED(local)
+    Q_UNUSED(remote)
+
+    return false;
+}
+
+bool QNetworkConnectionMonitor::startMonitoring()
+{
+    return false;
+}
+
+bool QNetworkConnectionMonitor::isMonitoring() const
+{
+    return false;
+}
+
+void QNetworkConnectionMonitor::stopMonitoring()
+{
+}
+
+bool QNetworkConnectionMonitor::isReachable()
+{
+    return false;
+}
+
+class QNetworkStatusMonitorPrivate : public QObjectPrivate
+{
+};
+
+QNetworkStatusMonitor::QNetworkStatusMonitor()
+    : QObject(*new QNetworkStatusMonitorPrivate)
+{
+}
+
+QNetworkStatusMonitor::~QNetworkStatusMonitor()
+{
+}
+
+bool QNetworkStatusMonitor::start()
+{
+    return false;
+}
+
+void QNetworkStatusMonitor::stop()
+{
+}
+
+bool QNetworkStatusMonitor::isMonitoring() const
+{
+    return false;
+}
+
+bool QNetworkStatusMonitor::isNetworkAccesible()
+{
+    return false;
+}
+
+bool QNetworkStatusMonitor::isEnabled()
+{
+    return false;
+}
+
+void QNetworkStatusMonitor::reachabilityChanged(bool online)
+{
+    Q_UNUSED(online)
+}
+
+QT_END_NAMESPACE
diff --git a/src/network/kernel/qnetworkdatagram.h b/src/network/kernel/qnetworkdatagram.h
index 1acb44a1e0..70958fea42 100644
--- a/src/network/kernel/qnetworkdatagram.h
+++ b/src/network/kernel/qnetworkdatagram.h
@@ -61,13 +61,13 @@ public:
     ~QNetworkDatagram()
     { if (d) destroy(d); }
 
-    QNetworkDatagram(QNetworkDatagram &&other) Q_DECL_NOTHROW
+    QNetworkDatagram(QNetworkDatagram &&other) noexcept
         : d(other.d)
     { other.d = nullptr; }
-    QNetworkDatagram &operator=(QNetworkDatagram &&other) Q_DECL_NOTHROW
+    QNetworkDatagram &operator=(QNetworkDatagram &&other) noexcept
     { swap(other); return *this; }
 
-    void swap(QNetworkDatagram &other) Q_DECL_NOTHROW
+    void swap(QNetworkDatagram &other) noexcept
     { qSwap(d, other.d); }
 
     void clear();
diff --git a/src/network/kernel/qnetworkinterface.h b/src/network/kernel/qnetworkinterface.h
index 148fd5e10d..4caedaa38f 100644
--- a/src/network/kernel/qnetworkinterface.h
+++ b/src/network/kernel/qnetworkinterface.h
@@ -64,13 +64,11 @@ public:
 
     QNetworkAddressEntry();
     QNetworkAddressEntry(const QNetworkAddressEntry &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkAddressEntry &operator=(QNetworkAddressEntry &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkAddressEntry &operator=(QNetworkAddressEntry &&other) noexcept { swap(other); return *this; }
     QNetworkAddressEntry &operator=(const QNetworkAddressEntry &other);
     ~QNetworkAddressEntry();
 
-    void swap(QNetworkAddressEntry &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkAddressEntry &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkAddressEntry &other) const;
     inline bool operator!=(const QNetworkAddressEntry &other) const
@@ -142,13 +140,11 @@ public:
 
     QNetworkInterface();
     QNetworkInterface(const QNetworkInterface &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkInterface &operator=(QNetworkInterface &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkInterface &operator=(QNetworkInterface &&other) noexcept { swap(other); return *this; }
     QNetworkInterface &operator=(const QNetworkInterface &other);
     ~QNetworkInterface();
 
-    void swap(QNetworkInterface &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkInterface &other) noexcept { qSwap(d, other.d); }
 
     bool isValid() const;
 
diff --git a/src/network/kernel/qnetworkinterface_p.h b/src/network/kernel/qnetworkinterface_p.h
index 87a46b75fa..44e27a7e34 100644
--- a/src/network/kernel/qnetworkinterface_p.h
+++ b/src/network/kernel/qnetworkinterface_p.h
@@ -82,7 +82,7 @@ public:
 class QNetworkInterfacePrivate: public QSharedData
 {
 public:
-    QNetworkInterfacePrivate() : index(0), flags(0)
+    QNetworkInterfacePrivate() : index(0), flags(nullptr)
     { }
     ~QNetworkInterfacePrivate()
     { }
diff --git a/src/network/kernel/qnetworkinterface_unix_p.h b/src/network/kernel/qnetworkinterface_unix_p.h
index c085194e3c..553af5a303 100644
--- a/src/network/kernel/qnetworkinterface_unix_p.h
+++ b/src/network/kernel/qnetworkinterface_unix_p.h
@@ -80,7 +80,7 @@ QT_BEGIN_NAMESPACE
 
 static QNetworkInterface::InterfaceFlags convertFlags(uint rawFlags)
 {
-    QNetworkInterface::InterfaceFlags flags = 0;
+    QNetworkInterface::InterfaceFlags flags = nullptr;
     flags |= (rawFlags & IFF_UP) ? QNetworkInterface::IsUp : QNetworkInterface::InterfaceFlag(0);
     flags |= (rawFlags & IFF_RUNNING) ? QNetworkInterface::IsRunning : QNetworkInterface::InterfaceFlag(0);
     flags |= (rawFlags & IFF_BROADCAST) ? QNetworkInterface::CanBroadcast : QNetworkInterface::InterfaceFlag(0);
diff --git a/src/network/kernel/qnetworkproxy.h b/src/network/kernel/qnetworkproxy.h
index 7e3e6906a8..302a2ce6ca 100644
--- a/src/network/kernel/qnetworkproxy.h
+++ b/src/network/kernel/qnetworkproxy.h
@@ -89,13 +89,11 @@ public:
                        QueryType queryType = TcpServer);
 #endif
     QNetworkProxyQuery(const QNetworkProxyQuery &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkProxyQuery &operator=(QNetworkProxyQuery &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkProxyQuery &operator=(QNetworkProxyQuery &&other) noexcept { swap(other); return *this; }
     QNetworkProxyQuery &operator=(const QNetworkProxyQuery &other);
     ~QNetworkProxyQuery();
 
-    void swap(QNetworkProxyQuery &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkProxyQuery &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkProxyQuery &other) const;
     inline bool operator!=(const QNetworkProxyQuery &other) const
@@ -161,13 +159,11 @@ public:
     QNetworkProxy(ProxyType type, const QString &hostName = QString(), quint16 port = 0,
                   const QString &user = QString(), const QString &password = QString());
     QNetworkProxy(const QNetworkProxy &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QNetworkProxy &operator=(QNetworkProxy &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QNetworkProxy &operator=(QNetworkProxy &&other) noexcept { swap(other); return *this; }
     QNetworkProxy &operator=(const QNetworkProxy &other);
     ~QNetworkProxy();
 
-    void swap(QNetworkProxy &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QNetworkProxy &other) noexcept { qSwap(d, other.d); }
 
     bool operator==(const QNetworkProxy &other) const;
     inline bool operator!=(const QNetworkProxy &other) const
diff --git a/src/network/socket/qabstractsocketengine_p.h b/src/network/socket/qabstractsocketengine_p.h
index 8eebb06a4d..112e7032d6 100644
--- a/src/network/socket/qabstractsocketengine_p.h
+++ b/src/network/socket/qabstractsocketengine_p.h
@@ -88,7 +88,7 @@ public:
     static QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType, const QNetworkProxy &, QObject *parent);
     static QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent);
 
-    QAbstractSocketEngine(QObject *parent = 0);
+    QAbstractSocketEngine(QObject *parent = nullptr);
 
     enum SocketOption {
         NonBlockingSocketOption,
@@ -155,7 +155,7 @@ public:
     virtual qint64 pendingDatagramSize() const = 0;
 #endif // QT_NO_UDPSOCKET
 
-    virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = 0,
+    virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = nullptr,
                                 PacketHeaderOptions = WantNone) = 0;
     virtual qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &header) = 0;
     virtual qint64 bytesToWrite() const = 0;
@@ -163,11 +163,11 @@ public:
     virtual int option(SocketOption option) const = 0;
     virtual bool setOption(SocketOption option, int value) = 0;
 
-    virtual bool waitForRead(int msecs = 30000, bool *timedOut = 0) = 0;
-    virtual bool waitForWrite(int msecs = 30000, bool *timedOut = 0) = 0;
+    virtual bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) = 0;
+    virtual bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) = 0;
     virtual bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) = 0;
+                            int msecs = 30000, bool *timedOut = nullptr) = 0;
 
     QAbstractSocket::SocketError error() const;
     QString errorString() const;
@@ -202,7 +202,7 @@ public Q_SLOTS:
 public:
     void setReceiver(QAbstractSocketEngineReceiver *receiver);
 protected:
-    QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = 0);
+    QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = nullptr);
 
     void setError(QAbstractSocket::SocketError error, const QString &errorString) const;
     void setState(QAbstractSocket::SocketState state);
diff --git a/src/network/socket/qhttpsocketengine.cpp b/src/network/socket/qhttpsocketengine.cpp
index 49ea17f9f8..6cae29193d 100644
--- a/src/network/socket/qhttpsocketengine.cpp
+++ b/src/network/socket/qhttpsocketengine.cpp
@@ -524,7 +524,7 @@ void QHttpSocketEngine::slotSocketConnected()
     //qDebug() << "slotSocketConnected: priv=" << priv << (priv ? (int)priv->method : -1);
     if (priv && priv->method != QAuthenticatorPrivate::None) {
         d->credentialsSent = true;
-        data += "Proxy-Authorization: " + priv->calculateResponse(method, path);
+        data += "Proxy-Authorization: " + priv->calculateResponse(method, path, d->proxy.hostName());
         data += "\r\n";
     }
     data += "\r\n";
diff --git a/src/network/socket/qhttpsocketengine_p.h b/src/network/socket/qhttpsocketengine_p.h
index bbcc09eee9..0c2c450c81 100644
--- a/src/network/socket/qhttpsocketengine_p.h
+++ b/src/network/socket/qhttpsocketengine_p.h
@@ -79,7 +79,7 @@ public:
         ReadResponseContent,
         ReadResponseHeader
     };
-    QHttpSocketEngine(QObject *parent = 0);
+    QHttpSocketEngine(QObject *parent = nullptr);
     ~QHttpSocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -126,11 +126,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;
diff --git a/src/network/socket/qlocalserver_p.h b/src/network/socket/qlocalserver_p.h
index 2c073908cb..92616e59ce 100644
--- a/src/network/socket/qlocalserver_p.h
+++ b/src/network/socket/qlocalserver_p.h
@@ -78,7 +78,7 @@ class QLocalServerPrivate : public QObjectPrivate
 public:
     QLocalServerPrivate() :
 #if !defined(QT_LOCALSOCKET_TCP) && !defined(Q_OS_WIN)
-            listenSocket(-1), socketNotifier(0),
+            listenSocket(-1), socketNotifier(nullptr),
 #endif
             maxPendingConnections(30), error(QAbstractSocket::UnknownSocketError),
             socketOptions(QLocalServer::NoOptions)
diff --git a/src/network/socket/qnativesocketengine_p.h b/src/network/socket/qnativesocketengine_p.h
index 2292566265..e5f0701d14 100644
--- a/src/network/socket/qnativesocketengine_p.h
+++ b/src/network/socket/qnativesocketengine_p.h
@@ -125,7 +125,7 @@ class Q_AUTOTEST_EXPORT QNativeSocketEngine : public QAbstractSocketEngine
 {
     Q_OBJECT
 public:
-    QNativeSocketEngine(QObject *parent = 0);
+    QNativeSocketEngine(QObject *parent = nullptr);
     ~QNativeSocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -161,7 +161,7 @@ public:
     qint64 pendingDatagramSize() const override;
 #endif // QT_NO_UDPSOCKET
 
-    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = 0,
+    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = nullptr,
                         PacketHeaderOptions = WantNone) override;
     qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &) override;
     qint64 bytesToWrite() const override;
@@ -177,11 +177,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;
diff --git a/src/network/socket/qsocks5socketengine_p.h b/src/network/socket/qsocks5socketengine_p.h
index ef9d771753..c256987e2d 100644
--- a/src/network/socket/qsocks5socketengine_p.h
+++ b/src/network/socket/qsocks5socketengine_p.h
@@ -65,7 +65,7 @@ class Q_AUTOTEST_EXPORT QSocks5SocketEngine : public QAbstractSocketEngine
 {
     Q_OBJECT
 public:
-    QSocks5SocketEngine(QObject *parent = 0);
+    QSocks5SocketEngine(QObject *parent = nullptr);
     ~QSocks5SocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -104,7 +104,7 @@ public:
     qint64 pendingDatagramSize() const override;
 #endif // QT_NO_UDPSOCKET
 
-    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = 0,
+    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = nullptr,
                         PacketHeaderOptions = WantNone) override;
     qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &) override;
     qint64 bytesToWrite() const override;
@@ -112,11 +112,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;
diff --git a/src/network/socket/socket.pri b/src/network/socket/socket.pri
index 44ff5b7b39..c3a98ea31a 100644
--- a/src/network/socket/socket.pri
+++ b/src/network/socket/socket.pri
@@ -58,7 +58,7 @@ unix {
 msvc: QMAKE_MOC_OPTIONS += -D_WINSOCK_DEPRECATED_NO_WARNINGS
 
 win32:!winrt:SOURCES += socket/qnativesocketengine_win.cpp
-win32:!winrt:LIBS_PRIVATE += -ladvapi32
+win32:!winrt: QMAKE_USE_PRIVATE += advapi32
 
 winrt {
     SOURCES += socket/qnativesocketengine_winrt.cpp
diff --git a/src/network/ssl/qasn1element_p.h b/src/network/ssl/qasn1element_p.h
index 22948e3ca5..020b5aa1af 100644
--- a/src/network/ssl/qasn1element_p.h
+++ b/src/network/ssl/qasn1element_p.h
@@ -156,10 +156,10 @@ public:
     static QAsn1Element fromVector(const QVector<QAsn1Element> &items);
     static QAsn1Element fromObjectId(const QByteArray &id);
 
-    bool toBool(bool *ok = 0) const;
+    bool toBool(bool *ok = nullptr) const;
     QDateTime toDateTime() const;
     QMultiMap<QByteArray, QString> toInfo() const;
-    qint64 toInteger(bool *ok = 0) const;
+    qint64 toInteger(bool *ok = nullptr) const;
     QVector<QAsn1Element> toVector() const;
     QByteArray toObjectId() const;
     QByteArray toObjectName() const;
diff --git a/src/network/ssl/qocspresponse.cpp b/src/network/ssl/qocspresponse.cpp
index d564e817ca..79f0cfd1d4 100644
--- a/src/network/ssl/qocspresponse.cpp
+++ b/src/network/ssl/qocspresponse.cpp
@@ -133,7 +133,7 @@ QOcspResponse::QOcspResponse(const QOcspResponse &) = default;
 
     Move-constructs a QOcspResponse instance.
 */
-QOcspResponse::QOcspResponse(QOcspResponse &&) Q_DECL_NOTHROW = default;
+QOcspResponse::QOcspResponse(QOcspResponse &&) noexcept = default;
 
 /*!
     \since 5.13
@@ -154,7 +154,7 @@ QOcspResponse &QOcspResponse::operator=(const QOcspResponse &) = default;
 
     Move-assigns to this QOcspResponse instance.
 */
-QOcspResponse &QOcspResponse::operator=(QOcspResponse &&) Q_DECL_NOTHROW = default;
+QOcspResponse &QOcspResponse::operator=(QOcspResponse &&) noexcept = default;
 
 /*!
     \fn void QOcspResponse::swap(QOcspResponse &other)
diff --git a/src/network/ssl/qocspresponse.h b/src/network/ssl/qocspresponse.h
index 552a088ba5..0e134d236b 100644
--- a/src/network/ssl/qocspresponse.h
+++ b/src/network/ssl/qocspresponse.h
@@ -82,11 +82,11 @@ public:
 
     QOcspResponse();
     QOcspResponse(const QOcspResponse &other);
-    QOcspResponse(QOcspResponse && other)  Q_DECL_NOEXCEPT;
+    QOcspResponse(QOcspResponse && other)  noexcept;
     ~QOcspResponse();
 
     QOcspResponse &operator = (const QOcspResponse &other);
-    QOcspResponse &operator = (QOcspResponse &&other) Q_DECL_NOTHROW;
+    QOcspResponse &operator = (QOcspResponse &&other) noexcept;
 
     QOcspCertificateStatus certificateStatus() const;
     QOcspRevocationReason revocationReason() const;
@@ -94,7 +94,7 @@ public:
     class QSslCertificate responder() const;
     QSslCertificate subject() const;
 
-    void swap(QOcspResponse &other) Q_DECL_NOTHROW { d.swap(other.d); }
+    void swap(QOcspResponse &other) noexcept { d.swap(other.d); }
 
 private:
 
diff --git a/src/network/ssl/qsslcertificate.h b/src/network/ssl/qsslcertificate.h
index 266fcdacb4..69901b526c 100644
--- a/src/network/ssl/qsslcertificate.h
+++ b/src/network/ssl/qsslcertificate.h
@@ -66,7 +66,7 @@ class QStringList;
 
 class QSslCertificate;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_NETWORK_EXPORT uint qHash(const QSslCertificate &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_NETWORK_EXPORT uint qHash(const QSslCertificate &key, uint seed = 0) noexcept;
 
 class QSslCertificatePrivate;
 class Q_NETWORK_EXPORT QSslCertificate
@@ -88,12 +88,10 @@ public:
     explicit QSslCertificate(const QByteArray &data = QByteArray(), QSsl::EncodingFormat format = QSsl::Pem);
     QSslCertificate(const QSslCertificate &other);
     ~QSslCertificate();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslCertificate &operator=(QSslCertificate &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslCertificate &operator=(QSslCertificate &&other) noexcept { swap(other); return *this; }
     QSslCertificate &operator=(const QSslCertificate &other);
 
-    void swap(QSslCertificate &other) Q_DECL_NOTHROW
+    void swap(QSslCertificate &other) noexcept
     { qSwap(d, other.d); }
 
     bool operator==(const QSslCertificate &other) const;
@@ -169,7 +167,7 @@ private:
     friend class QSslCertificatePrivate;
     friend class QSslSocketBackendPrivate;
 
-    friend Q_NETWORK_EXPORT uint qHash(const QSslCertificate &key, uint seed) Q_DECL_NOTHROW;
+    friend Q_NETWORK_EXPORT uint qHash(const QSslCertificate &key, uint seed) noexcept;
 };
 Q_DECLARE_SHARED(QSslCertificate)
 
diff --git a/src/network/ssl/qsslcertificate_openssl.cpp b/src/network/ssl/qsslcertificate_openssl.cpp
index 899c8a0d2d..806c6426e4 100644
--- a/src/network/ssl/qsslcertificate_openssl.cpp
+++ b/src/network/ssl/qsslcertificate_openssl.cpp
@@ -65,7 +65,7 @@ bool QSslCertificate::operator==(const QSslCertificate &other) const
     return false;
 }
 
-uint qHash(const QSslCertificate &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QSslCertificate &key, uint seed) noexcept
 {
     if (X509 * const x509 = key.d->x509) {
         const EVP_MD *sha1 = q_EVP_sha1();
diff --git a/src/network/ssl/qsslcertificate_p.h b/src/network/ssl/qsslcertificate_p.h
index 4b331d4c4e..234cd45ceb 100644
--- a/src/network/ssl/qsslcertificate_p.h
+++ b/src/network/ssl/qsslcertificate_p.h
@@ -87,7 +87,7 @@ class QSslCertificatePrivate
 {
 public:
     QSslCertificatePrivate()
-        : null(true), x509(0)
+        : null(true), x509(nullptr)
     {
 #ifndef QT_NO_SSL
         QSslSocketPrivate::ensureInitialized();
diff --git a/src/network/ssl/qsslcertificate_qt.cpp b/src/network/ssl/qsslcertificate_qt.cpp
index cce59b5ef3..8b5035ad96 100644
--- a/src/network/ssl/qsslcertificate_qt.cpp
+++ b/src/network/ssl/qsslcertificate_qt.cpp
@@ -64,7 +64,7 @@ bool QSslCertificate::operator==(const QSslCertificate &other) const
     return d->derData == other.d->derData;
 }
 
-uint qHash(const QSslCertificate &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QSslCertificate &key, uint seed) noexcept
 {
     // DER is the native encoding here, so toDer() is just "return d->derData":
     return qHash(key.toDer(), seed);
diff --git a/src/network/ssl/qsslcertificateextension.h b/src/network/ssl/qsslcertificateextension.h
index c2910e1707..7cc8a888be 100644
--- a/src/network/ssl/qsslcertificateextension.h
+++ b/src/network/ssl/qsslcertificateextension.h
@@ -55,13 +55,11 @@ class Q_NETWORK_EXPORT QSslCertificateExtension
 public:
     QSslCertificateExtension();
     QSslCertificateExtension(const QSslCertificateExtension &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslCertificateExtension &operator=(QSslCertificateExtension &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslCertificateExtension &operator=(QSslCertificateExtension &&other) noexcept { swap(other); return *this; }
     QSslCertificateExtension &operator=(const QSslCertificateExtension &other);
     ~QSslCertificateExtension();
 
-    void swap(QSslCertificateExtension &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QSslCertificateExtension &other) noexcept { qSwap(d, other.d); }
 
     QString oid() const;
     QString name() const;
diff --git a/src/network/ssl/qsslcipher.h b/src/network/ssl/qsslcipher.h
index c6328e0169..6994f590ae 100644
--- a/src/network/ssl/qsslcipher.h
+++ b/src/network/ssl/qsslcipher.h
@@ -59,13 +59,11 @@ public:
     explicit QSslCipher(const QString &name);
     QSslCipher(const QString &name, QSsl::SslProtocol protocol);
     QSslCipher(const QSslCipher &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslCipher &operator=(QSslCipher &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslCipher &operator=(QSslCipher &&other) noexcept { swap(other); return *this; }
     QSslCipher &operator=(const QSslCipher &other);
     ~QSslCipher();
 
-    void swap(QSslCipher &other) Q_DECL_NOTHROW
+    void swap(QSslCipher &other) noexcept
     { qSwap(d, other.d); }
 
     bool operator==(const QSslCipher &other) const;
diff --git a/src/network/ssl/qsslconfiguration.h b/src/network/ssl/qsslconfiguration.h
index 8f53e25a53..c25c2686de 100644
--- a/src/network/ssl/qsslconfiguration.h
+++ b/src/network/ssl/qsslconfiguration.h
@@ -85,12 +85,10 @@ public:
     QSslConfiguration();
     QSslConfiguration(const QSslConfiguration &other);
     ~QSslConfiguration();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslConfiguration &operator=(QSslConfiguration &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslConfiguration &operator=(QSslConfiguration &&other) noexcept { swap(other); return *this; }
     QSslConfiguration &operator=(const QSslConfiguration &other);
 
-    void swap(QSslConfiguration &other) Q_DECL_NOTHROW
+    void swap(QSslConfiguration &other) noexcept
     { qSwap(d, other.d); }
 
     bool operator==(const QSslConfiguration &other) const;
diff --git a/src/network/ssl/qsslcontext_openssl11.cpp b/src/network/ssl/qsslcontext_openssl11.cpp
index 21a5c779f7..db023b7331 100644
--- a/src/network/ssl/qsslcontext_openssl11.cpp
+++ b/src/network/ssl/qsslcontext_openssl11.cpp
@@ -193,7 +193,6 @@ init_context:
         minVersion = TLS1_2_VERSION;
         maxVersion = 0;
         break;
-#if QT_CONFIG(dtls)
     case QSsl::DtlsV1_0:
         minVersion = DTLS1_VERSION;
         maxVersion = DTLS1_VERSION;
@@ -210,7 +209,6 @@ init_context:
         minVersion = DTLS1_2_VERSION;
         maxVersion = DTLS_MAX_VERSION;
         break;
-#endif // dtls
     case QSsl::TlsV1_3OrLater:
 #ifdef TLS1_3_VERSION
         minVersion = TLS1_3_VERSION;
diff --git a/src/network/ssl/qsslcontext_openssl_p.h b/src/network/ssl/qsslcontext_openssl_p.h
index 48beebf134..1fa27279c7 100644
--- a/src/network/ssl/qsslcontext_openssl_p.h
+++ b/src/network/ssl/qsslcontext_openssl_p.h
@@ -89,7 +89,7 @@ public:
 #if OPENSSL_VERSION_NUMBER >= 0x1000100fL && !defined(OPENSSL_NO_NEXTPROTONEG)
     // must be public because we want to use it from an OpenSSL callback
     struct NPNContext {
-        NPNContext() : data(0),
+        NPNContext() : data(nullptr),
             len(0),
             status(QSslConfiguration::NextProtocolNegotiationNone)
         { }
diff --git a/src/network/ssl/qssldiffiehellmanparameters.cpp b/src/network/ssl/qssldiffiehellmanparameters.cpp
index 65041d4456..7807afaa30 100644
--- a/src/network/ssl/qssldiffiehellmanparameters.cpp
+++ b/src/network/ssl/qssldiffiehellmanparameters.cpp
@@ -213,7 +213,7 @@ QSslDiffieHellmanParameters &QSslDiffieHellmanParameters::operator=(const QSslDi
     Setting an empty QSslDiffieHellmanParameters instance on a QSslSocket-based
     server will disable Diffie-Hellman key exchange.
 */
-bool QSslDiffieHellmanParameters::isEmpty() const Q_DECL_NOTHROW
+bool QSslDiffieHellmanParameters::isEmpty() const noexcept
 {
     return d->derData.isNull() && d->error == QSslDiffieHellmanParameters::NoError;
 }
@@ -229,7 +229,7 @@ bool QSslDiffieHellmanParameters::isEmpty() const Q_DECL_NOTHROW
 
     \sa error()
 */
-bool QSslDiffieHellmanParameters::isValid() const Q_DECL_NOTHROW
+bool QSslDiffieHellmanParameters::isValid() const noexcept
 {
     return d->error == QSslDiffieHellmanParameters::NoError;
 }
@@ -253,7 +253,7 @@ bool QSslDiffieHellmanParameters::isValid() const Q_DECL_NOTHROW
     Returns the error that caused the QSslDiffieHellmanParameters object
     to be invalid.
 */
-QSslDiffieHellmanParameters::Error QSslDiffieHellmanParameters::error() const Q_DECL_NOTHROW
+QSslDiffieHellmanParameters::Error QSslDiffieHellmanParameters::error() const noexcept
 {
     return d->error;
 }
@@ -262,7 +262,7 @@ QSslDiffieHellmanParameters::Error QSslDiffieHellmanParameters::error() const Q_
     Returns a human-readable description of the error that caused the
     QSslDiffieHellmanParameters object to be invalid.
 */
-QString QSslDiffieHellmanParameters::errorString() const Q_DECL_NOTHROW
+QString QSslDiffieHellmanParameters::errorString() const noexcept
 {
     switch (d->error) {
     case QSslDiffieHellmanParameters::NoError:
@@ -283,7 +283,7 @@ QString QSslDiffieHellmanParameters::errorString() const Q_DECL_NOTHROW
 
     Returns \c true if \a lhs is equal to \a rhs; otherwise returns \c false.
 */
-bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) Q_DECL_NOTHROW
+bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) noexcept
 {
     return lhs.d->derData == rhs.d->derData;
 }
@@ -316,7 +316,7 @@ QDebug operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam)
     Returns an hash value for \a dhparam, using \a seed to seed
     the calculation.
 */
-uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) Q_DECL_NOTHROW
+uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) noexcept
 {
     return qHash(dhparam.d->derData, seed);
 }
diff --git a/src/network/ssl/qssldiffiehellmanparameters.h b/src/network/ssl/qssldiffiehellmanparameters.h
index 497d2bebfb..f62a3b8f44 100644
--- a/src/network/ssl/qssldiffiehellmanparameters.h
+++ b/src/network/ssl/qssldiffiehellmanparameters.h
@@ -56,16 +56,16 @@ class QSslDiffieHellmanParametersPrivate;
 
 class QSslDiffieHellmanParameters;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_NETWORK_EXPORT uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed = 0) Q_DECL_NOTHROW;
+Q_NETWORK_EXPORT uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed = 0) noexcept;
 
 #ifndef QT_NO_DEBUG_STREAM
 class QDebug;
 Q_NETWORK_EXPORT QDebug operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparams);
 #endif
 
-Q_NETWORK_EXPORT bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) Q_DECL_NOTHROW;
+Q_NETWORK_EXPORT bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) noexcept;
 
-inline bool operator!=(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) Q_DECL_NOTHROW
+inline bool operator!=(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) noexcept
 {
     return !operator==(lhs, rhs);
 }
@@ -83,30 +83,30 @@ public:
 
     Q_NETWORK_EXPORT QSslDiffieHellmanParameters();
     Q_NETWORK_EXPORT QSslDiffieHellmanParameters(const QSslDiffieHellmanParameters &other);
-    QSslDiffieHellmanParameters(QSslDiffieHellmanParameters &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
+    QSslDiffieHellmanParameters(QSslDiffieHellmanParameters &&other) noexcept : d(other.d) { other.d = nullptr; }
     Q_NETWORK_EXPORT ~QSslDiffieHellmanParameters();
 
     Q_NETWORK_EXPORT QSslDiffieHellmanParameters &operator=(const QSslDiffieHellmanParameters &other);
-    QSslDiffieHellmanParameters &operator=(QSslDiffieHellmanParameters &&other) Q_DECL_NOTHROW { swap(other); return *this; }
+    QSslDiffieHellmanParameters &operator=(QSslDiffieHellmanParameters &&other) noexcept { swap(other); return *this; }
 
-    void swap(QSslDiffieHellmanParameters &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QSslDiffieHellmanParameters &other) noexcept { qSwap(d, other.d); }
 
     Q_NETWORK_EXPORT static QSslDiffieHellmanParameters fromEncoded(const QByteArray &encoded, QSsl::EncodingFormat format = QSsl::Pem);
     Q_NETWORK_EXPORT static QSslDiffieHellmanParameters fromEncoded(QIODevice *device, QSsl::EncodingFormat format = QSsl::Pem);
 
-    Q_NETWORK_EXPORT bool isEmpty() const Q_DECL_NOTHROW;
-    Q_NETWORK_EXPORT bool isValid() const Q_DECL_NOTHROW;
-    Q_NETWORK_EXPORT Error error() const Q_DECL_NOTHROW;
-    Q_NETWORK_EXPORT QString errorString() const Q_DECL_NOTHROW;
+    Q_NETWORK_EXPORT bool isEmpty() const noexcept;
+    Q_NETWORK_EXPORT bool isValid() const noexcept;
+    Q_NETWORK_EXPORT Error error() const noexcept;
+    Q_NETWORK_EXPORT QString errorString() const noexcept;
 
 private:
     QSslDiffieHellmanParametersPrivate *d;
     friend class QSslContext;
-    friend Q_NETWORK_EXPORT bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) Q_DECL_NOTHROW;
+    friend Q_NETWORK_EXPORT bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) noexcept;
 #ifndef QT_NO_DEBUG_STREAM
     friend Q_NETWORK_EXPORT QDebug operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam);
 #endif
-    friend Q_NETWORK_EXPORT uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) Q_DECL_NOTHROW;
+    friend Q_NETWORK_EXPORT uint qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) noexcept;
 };
 
 Q_DECLARE_SHARED(QSslDiffieHellmanParameters)
diff --git a/src/network/ssl/qsslellipticcurve.h b/src/network/ssl/qsslellipticcurve.h
index 57dda19bad..28de3a03b4 100644
--- a/src/network/ssl/qsslellipticcurve.h
+++ b/src/network/ssl/qsslellipticcurve.h
@@ -52,11 +52,11 @@ QT_BEGIN_NAMESPACE
 
 class QSslEllipticCurve;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_DECL_CONSTEXPR uint qHash(QSslEllipticCurve curve, uint seed = 0) Q_DECL_NOTHROW;
+Q_DECL_CONSTEXPR uint qHash(QSslEllipticCurve curve, uint seed = 0) noexcept;
 
 class QSslEllipticCurve {
 public:
-    Q_DECL_CONSTEXPR QSslEllipticCurve() Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR QSslEllipticCurve() noexcept
         : id(0)
     {
     }
@@ -67,18 +67,18 @@ public:
     Q_REQUIRED_RESULT Q_NETWORK_EXPORT QString shortName() const;
     Q_REQUIRED_RESULT Q_NETWORK_EXPORT QString longName() const;
 
-    Q_DECL_CONSTEXPR bool isValid() const Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR bool isValid() const noexcept
     {
         return id != 0;
     }
 
-    Q_NETWORK_EXPORT bool isTlsNamedCurve() const Q_DECL_NOTHROW;
+    Q_NETWORK_EXPORT bool isTlsNamedCurve() const noexcept;
 
 private:
     int id;
 
-    friend Q_DECL_CONSTEXPR bool operator==(QSslEllipticCurve lhs, QSslEllipticCurve rhs) Q_DECL_NOTHROW;
-    friend Q_DECL_CONSTEXPR uint qHash(QSslEllipticCurve curve, uint seed) Q_DECL_NOTHROW;
+    friend Q_DECL_CONSTEXPR bool operator==(QSslEllipticCurve lhs, QSslEllipticCurve rhs) noexcept;
+    friend Q_DECL_CONSTEXPR uint qHash(QSslEllipticCurve curve, uint seed) noexcept;
 
     friend class QSslContext;
     friend class QSslSocketPrivate;
@@ -87,13 +87,13 @@ private:
 
 Q_DECLARE_TYPEINFO(QSslEllipticCurve, Q_PRIMITIVE_TYPE);
 
-Q_DECL_CONSTEXPR inline uint qHash(QSslEllipticCurve curve, uint seed) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline uint qHash(QSslEllipticCurve curve, uint seed) noexcept
 { return qHash(curve.id, seed); }
 
-Q_DECL_CONSTEXPR inline bool operator==(QSslEllipticCurve lhs, QSslEllipticCurve rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator==(QSslEllipticCurve lhs, QSslEllipticCurve rhs) noexcept
 { return lhs.id == rhs.id; }
 
-Q_DECL_CONSTEXPR inline bool operator!=(QSslEllipticCurve lhs, QSslEllipticCurve rhs) Q_DECL_NOTHROW
+Q_DECL_CONSTEXPR inline bool operator!=(QSslEllipticCurve lhs, QSslEllipticCurve rhs) noexcept
 { return !operator==(lhs, rhs); }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/network/ssl/qsslellipticcurve_dummy.cpp b/src/network/ssl/qsslellipticcurve_dummy.cpp
index 93e081b9e0..1313e06875 100644
--- a/src/network/ssl/qsslellipticcurve_dummy.cpp
+++ b/src/network/ssl/qsslellipticcurve_dummy.cpp
@@ -63,7 +63,7 @@ QSslEllipticCurve QSslEllipticCurve::fromLongName(const QString &name)
     return QSslEllipticCurve();
 }
 
-bool QSslEllipticCurve::isTlsNamedCurve() const Q_DECL_NOTHROW
+bool QSslEllipticCurve::isTlsNamedCurve() const noexcept
 {
     return false;
 }
diff --git a/src/network/ssl/qsslellipticcurve_openssl.cpp b/src/network/ssl/qsslellipticcurve_openssl.cpp
index 8cd14837f0..b5e38ada53 100644
--- a/src/network/ssl/qsslellipticcurve_openssl.cpp
+++ b/src/network/ssl/qsslellipticcurve_openssl.cpp
@@ -170,7 +170,7 @@ static const int tlsNamedCurveNIDs[] = {
 
 static const size_t tlsNamedCurveNIDCount = sizeof(tlsNamedCurveNIDs) / sizeof(tlsNamedCurveNIDs[0]);
 
-bool QSslEllipticCurve::isTlsNamedCurve() const Q_DECL_NOTHROW
+bool QSslEllipticCurve::isTlsNamedCurve() const noexcept
 {
     const int * const tlsNamedCurveNIDsEnd = tlsNamedCurveNIDs + tlsNamedCurveNIDCount;
     return std::find(tlsNamedCurveNIDs, tlsNamedCurveNIDsEnd, id) != tlsNamedCurveNIDsEnd;
diff --git a/src/network/ssl/qsslerror.cpp b/src/network/ssl/qsslerror.cpp
index 02dd16a58d..ff54c2ad20 100644
--- a/src/network/ssl/qsslerror.cpp
+++ b/src/network/ssl/qsslerror.cpp
@@ -361,7 +361,7 @@ QSslCertificate QSslError::certificate() const
     \since 5.4
     \relates QHash
 */
-uint qHash(const QSslError &key, uint seed) Q_DECL_NOTHROW
+uint qHash(const QSslError &key, uint seed) noexcept
 {
     // 2x boost::hash_combine inlined:
     seed ^= qHash(key.error())       + 0x9e3779b9 + (seed << 6) + (seed >> 2);
diff --git a/src/network/ssl/qsslerror.h b/src/network/ssl/qsslerror.h
index 513b8afd7f..c4a0d52193 100644
--- a/src/network/ssl/qsslerror.h
+++ b/src/network/ssl/qsslerror.h
@@ -103,13 +103,11 @@ public:
 
     QSslError(const QSslError &other);
 
-    void swap(QSslError &other) Q_DECL_NOTHROW
+    void swap(QSslError &other) noexcept
     { qSwap(d, other.d); }
 
     ~QSslError();
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslError &operator=(QSslError &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslError &operator=(QSslError &&other) noexcept { swap(other); return *this; }
     QSslError &operator=(const QSslError &other);
     bool operator==(const QSslError &other) const;
     inline bool operator!=(const QSslError &other) const
@@ -124,7 +122,7 @@ private:
 };
 Q_DECLARE_SHARED(QSslError)
 
-Q_NETWORK_EXPORT uint qHash(const QSslError &key, uint seed = 0) Q_DECL_NOTHROW;
+Q_NETWORK_EXPORT uint qHash(const QSslError &key, uint seed = 0) noexcept;
 
 #ifndef QT_NO_DEBUG_STREAM
 class QDebug;
diff --git a/src/network/ssl/qsslkey.h b/src/network/ssl/qsslkey.h
index 6de02b1e44..74be406539 100644
--- a/src/network/ssl/qsslkey.h
+++ b/src/network/ssl/qsslkey.h
@@ -71,13 +71,12 @@ public:
             const QByteArray &passPhrase = QByteArray());
     explicit QSslKey(Qt::HANDLE handle, QSsl::KeyType type = QSsl::PrivateKey);
     QSslKey(const QSslKey &other);
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslKey &operator=(QSslKey &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslKey(QSslKey &&other) noexcept;
+    QSslKey &operator=(QSslKey &&other) noexcept;
     QSslKey &operator=(const QSslKey &other);
     ~QSslKey();
 
-    void swap(QSslKey &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QSslKey &other) noexcept { qSwap(d, other.d); }
 
     bool isNull() const;
     void clear();
diff --git a/src/network/ssl/qsslkey_mac.cpp b/src/network/ssl/qsslkey_mac.cpp
index d460cbfdab..814fe1c4bc 100644
--- a/src/network/ssl/qsslkey_mac.cpp
+++ b/src/network/ssl/qsslkey_mac.cpp
@@ -42,7 +42,9 @@
 
 #include <CommonCrypto/CommonCrypto.h>
 
-QT_USE_NAMESPACE
+#include <cstddef>
+
+QT_BEGIN_NAMESPACE
 
 static QByteArray wrapCCCrypt(CCOperation ccOp,
                               QSslKeyPrivate::Cipher cipher,
@@ -64,17 +66,23 @@ static QByteArray wrapCCCrypt(CCOperation ccOp,
         blockSize = kCCBlockSizeRC2;
         ccAlgorithm = kCCAlgorithmRC2;
         break;
-    };
+    case QSslKeyPrivate::Aes128Cbc:
+    case QSslKeyPrivate::Aes192Cbc:
+    case QSslKeyPrivate::Aes256Cbc:
+        blockSize = kCCBlockSizeAES128;
+        ccAlgorithm = kCCAlgorithmAES;
+        break;
+    }
     size_t plainLength = 0;
     QByteArray plain(data.size() + blockSize, 0);
     CCCryptorStatus status = CCCrypt(
         ccOp, ccAlgorithm, kCCOptionPKCS7Padding,
-        key.constData(), key.size(),
+        key.constData(), std::size_t(key.size()),
         iv.constData(),
-        data.constData(), data.size(),
-        plain.data(), plain.size(), &plainLength);
+        data.constData(), std::size_t(data.size()),
+        plain.data(), std::size_t(plain.size()), &plainLength);
     if (status == kCCSuccess)
-        return plain.left(plainLength);
+        return plain.left(int(plainLength));
     return QByteArray();
 }
 
@@ -87,3 +95,5 @@ QByteArray QSslKeyPrivate::encrypt(Cipher cipher, const QByteArray &data, const
 {
     return wrapCCCrypt(kCCEncrypt, cipher, data, key, iv);
 }
+
+QT_END_NAMESPACE
diff --git a/src/network/ssl/qsslkey_openssl.cpp b/src/network/ssl/qsslkey_openssl.cpp
index 99c1a39c73..888058df22 100644
--- a/src/network/ssl/qsslkey_openssl.cpp
+++ b/src/network/ssl/qsslkey_openssl.cpp
@@ -333,6 +333,15 @@ static QByteArray doCrypt(QSslKeyPrivate::Cipher cipher, const QByteArray &data,
         type = q_EVP_rc2_cbc();
 #endif
         break;
+    case QSslKeyPrivate::Aes128Cbc:
+        type = q_EVP_aes_128_cbc();
+        break;
+    case QSslKeyPrivate::Aes192Cbc:
+        type = q_EVP_aes_192_cbc();
+        break;
+    case QSslKeyPrivate::Aes256Cbc:
+        type = q_EVP_aes_256_cbc();
+        break;
     }
 
     if (type == nullptr)
diff --git a/src/network/ssl/qsslkey_p.cpp b/src/network/ssl/qsslkey_p.cpp
index 5c90719fcd..b0d6c729f9 100644
--- a/src/network/ssl/qsslkey_p.cpp
+++ b/src/network/ssl/qsslkey_p.cpp
@@ -385,6 +385,24 @@ QSslKey::QSslKey(const QSslKey &other) : d(other.d)
 {
 }
 
+QSslKey::QSslKey(QSslKey &&other) noexcept
+    : d(nullptr)
+{
+    qSwap(d, other.d);
+}
+
+QSslKey &QSslKey::operator=(QSslKey &&other) noexcept
+{
+    if (this == &other)
+        return *this;
+
+    // If no one else is referencing the key data we want to make sure
+    // before we swap the d-ptr that it is not left in memory.
+    d.reset();
+    qSwap(d, other.d);
+    return *this;
+}
+
 /*!
     Destroys the QSslKey object.
 */
diff --git a/src/network/ssl/qsslkey_p.h b/src/network/ssl/qsslkey_p.h
index 06403b5479..dd1a31b0e5 100644
--- a/src/network/ssl/qsslkey_p.h
+++ b/src/network/ssl/qsslkey_p.h
@@ -68,7 +68,7 @@ class QSslKeyPrivate
 public:
     inline QSslKeyPrivate()
         : algorithm(QSsl::Opaque)
-        , opaque(0)
+        , opaque(nullptr)
     {
         clear(false);
     }
@@ -105,7 +105,10 @@ public:
     enum Cipher {
         DesCbc,
         DesEde3Cbc,
-        Rc2Cbc
+        Rc2Cbc,
+        Aes128Cbc,
+        Aes192Cbc,
+        Aes256Cbc
     };
 
     Q_AUTOTEST_EXPORT static QByteArray decrypt(Cipher cipher, const QByteArray &data, const QByteArray &key, const QByteArray &iv);
diff --git a/src/network/ssl/qsslkey_qt.cpp b/src/network/ssl/qsslkey_qt.cpp
index 5ebd8ac3bd..43969c3d28 100644
--- a/src/network/ssl/qsslkey_qt.cpp
+++ b/src/network/ssl/qsslkey_qt.cpp
@@ -48,6 +48,8 @@
 
 #include <QtNetwork/qpassworddigestor.h>
 
+#include <cstring>
+
 QT_USE_NAMESPACE
 
 static const quint8 bits_table[256] = {
@@ -124,6 +126,37 @@ static int numberOfBits(const QByteArray &modulus)
     return bits;
 }
 
+static QByteArray deriveAesKey(QSslKeyPrivate::Cipher cipher, const QByteArray &passPhrase, const QByteArray &iv)
+{
+    // This is somewhat simplified and shortened version of what OpenSSL does.
+    // See, for example, EVP_BytesToKey for the "algorithm" itself and elsewhere
+    // in their code for what they pass as arguments to EVP_BytesToKey when
+    // deriving encryption keys (when reading/writing pems files with encrypted
+    // keys).
+
+    Q_ASSERT(iv.size() >= 8);
+
+    QCryptographicHash hash(QCryptographicHash::Md5);
+
+    QByteArray data(passPhrase);
+    data.append(iv.data(), 8); // AKA PKCS5_SALT_LEN in OpenSSL.
+
+    hash.addData(data);
+
+    if (cipher == QSslKeyPrivate::Aes128Cbc)
+        return hash.result();
+
+    QByteArray key(hash.result());
+    hash.reset();
+    hash.addData(key);
+    hash.addData(data);
+
+    if (cipher == QSslKeyPrivate::Aes192Cbc)
+        return key.append(hash.result().constData(), 8);
+
+    return key.append(hash.result());
+}
+
 static QByteArray deriveKey(QSslKeyPrivate::Cipher cipher, const QByteArray &passPhrase, const QByteArray &iv)
 {
     QByteArray key;
@@ -145,14 +178,19 @@ static QByteArray deriveKey(QSslKeyPrivate::Cipher cipher, const QByteArray &pas
     case QSslKeyPrivate::Rc2Cbc:
         key = hash.result();
         break;
+    case QSslKeyPrivate::Aes128Cbc:
+    case QSslKeyPrivate::Aes192Cbc:
+    case QSslKeyPrivate::Aes256Cbc:
+        return deriveAesKey(cipher, passPhrase, iv);
     }
     return key;
 }
 
 void QSslKeyPrivate::clear(bool deep)
 {
-    Q_UNUSED(deep);
     isNull = true;
+    if (deep)
+        std::memset(derData.data(), 0, derData.size());
     derData.clear();
     keyLength = -1;
 }
@@ -378,6 +416,12 @@ void QSslKeyPrivate::decodePem(const QByteArray &pem, const QByteArray &passPhra
             cipher = DesEde3Cbc;
         } else if (dekInfo.first() == "RC2-CBC") {
             cipher = Rc2Cbc;
+        } else if (dekInfo.first() == "AES-128-CBC") {
+            cipher = Aes128Cbc;
+        } else if (dekInfo.first() == "AES-192-CBC") {
+            cipher = Aes192Cbc;
+        } else if (dekInfo.first() == "AES-256-CBC") {
+            cipher = Aes256Cbc;
         } else {
             clear(deepClear);
             return;
@@ -554,6 +598,10 @@ static EncryptionData readPbes2(const QVector<QAsn1Element> &element, const QByt
             return {};
         break;
     } // @todo(?): case (RC5 , AES)
+    case QSslKeyPrivate::Cipher::Aes128Cbc:
+    case QSslKeyPrivate::Cipher::Aes192Cbc:
+    case QSslKeyPrivate::Cipher::Aes256Cbc:
+        Q_UNREACHABLE();
     }
 
     if (Q_LIKELY(keyDerivationAlgorithm == PKCS5_PBKDF2_ENCRYPTION_OID)) {
diff --git a/src/network/ssl/qsslkey_schannel.cpp b/src/network/ssl/qsslkey_schannel.cpp
index 5694068860..1e21d123f4 100644
--- a/src/network/ssl/qsslkey_schannel.cpp
+++ b/src/network/ssl/qsslkey_schannel.cpp
@@ -57,6 +57,10 @@ const wchar_t *getName(QSslKeyPrivate::Cipher cipher)
         return BCRYPT_3DES_ALGORITHM;
     case QSslKeyPrivate::Cipher::Rc2Cbc:
         return BCRYPT_RC2_ALGORITHM;
+    case QSslKeyPrivate::Cipher::Aes128Cbc:
+    case QSslKeyPrivate::Cipher::Aes192Cbc:
+    case QSslKeyPrivate::Cipher::Aes256Cbc:
+        return BCRYPT_AES_ALGORITHM;
     }
     Q_UNREACHABLE();
 }
diff --git a/src/network/ssl/qsslkey_winrt.cpp b/src/network/ssl/qsslkey_winrt.cpp
index f2ed813965..69eaaa387f 100644
--- a/src/network/ssl/qsslkey_winrt.cpp
+++ b/src/network/ssl/qsslkey_winrt.cpp
@@ -83,6 +83,15 @@ struct SslKeyGlobal
         hr = keyProviderFactory->OpenAlgorithm(HString::MakeReference(L"RC2_CBC").Get(),
                                                &keyProviders[QSslKeyPrivate::Rc2Cbc]);
         Q_ASSERT_SUCCEEDED(hr);
+        hr = keyProviderFactory->OpenAlgorithm(HString::MakeReference(L"AES_CBC").Get(),
+                                               &keyProviders[QSslKeyPrivate::Aes128Cbc]);
+        Q_ASSERT_SUCCEEDED(hr);
+        hr = keyProviderFactory->OpenAlgorithm(HString::MakeReference(L"AES_CBC").Get(),
+                                               &keyProviders[QSslKeyPrivate::Aes192Cbc]);
+        Q_ASSERT_SUCCEEDED(hr);
+        hr = keyProviderFactory->OpenAlgorithm(HString::MakeReference(L"AES_CBC").Get(),
+                                               &keyProviders[QSslKeyPrivate::Aes256Cbc]);
+        Q_ASSERT_SUCCEEDED(hr);
 
         hr = GetActivationFactory(HString::MakeReference(RuntimeClass_Windows_Security_Cryptography_CryptographicBuffer).Get(),
                                   &bufferFactory);
diff --git a/src/network/ssl/qsslpresharedkeyauthenticator.h b/src/network/ssl/qsslpresharedkeyauthenticator.h
index 423f7731b4..5d714dc34e 100644
--- a/src/network/ssl/qsslpresharedkeyauthenticator.h
+++ b/src/network/ssl/qsslpresharedkeyauthenticator.h
@@ -59,11 +59,9 @@ public:
     Q_NETWORK_EXPORT QSslPreSharedKeyAuthenticator(const QSslPreSharedKeyAuthenticator &authenticator);
     Q_NETWORK_EXPORT QSslPreSharedKeyAuthenticator &operator=(const QSslPreSharedKeyAuthenticator &authenticator);
 
-#ifdef Q_COMPILER_RVALUE_REFS
-    QSslPreSharedKeyAuthenticator &operator=(QSslPreSharedKeyAuthenticator &&other) Q_DECL_NOTHROW { swap(other); return *this; }
-#endif
+    QSslPreSharedKeyAuthenticator &operator=(QSslPreSharedKeyAuthenticator &&other) noexcept { swap(other); return *this; }
 
-    void swap(QSslPreSharedKeyAuthenticator &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QSslPreSharedKeyAuthenticator &other) noexcept { qSwap(d, other.d); }
 
     Q_NETWORK_EXPORT QByteArray identityHint() const;
 
diff --git a/src/network/ssl/qsslsocket.cpp b/src/network/ssl/qsslsocket.cpp
index e164217e4e..4e6caf3edd 100644
--- a/src/network/ssl/qsslsocket.cpp
+++ b/src/network/ssl/qsslsocket.cpp
@@ -1209,12 +1209,21 @@ void QSslSocket::setPrivateKey(const QSslKey &key)
 void QSslSocket::setPrivateKey(const QString &fileName, QSsl::KeyAlgorithm algorithm,
                                QSsl::EncodingFormat format, const QByteArray &passPhrase)
 {
-    Q_D(QSslSocket);
     QFile file(fileName);
-    if (file.open(QIODevice::ReadOnly)) {
-        d->configuration.privateKey = QSslKey(file.readAll(), algorithm,
-                                              format, QSsl::PrivateKey, passPhrase);
+    if (!file.open(QIODevice::ReadOnly)) {
+        qCWarning(lcSsl, "QSslSocket::setPrivateKey: Couldn't open file for reading");
+        return;
+    }
+
+    QSslKey key(file.readAll(), algorithm, format, QSsl::PrivateKey, passPhrase);
+    if (key.isNull()) {
+        qCWarning(lcSsl, "QSslSocket::setPrivateKey: "
+                         "The specified file does not contain a valid key");
+        return;
     }
+
+    Q_D(QSslSocket);
+    d->configuration.privateKey = key;
 }
 
 /*!
diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp
index c48cd42360..6a8269b521 100644
--- a/src/network/ssl/qsslsocket_openssl.cpp
+++ b/src/network/ssl/qsslsocket_openssl.cpp
@@ -476,7 +476,8 @@ bool QSslSocketBackendPrivate::initSslContext()
 {
     Q_Q(QSslSocket);
 
-    // If no external context was set (e.g. bei QHttpNetworkConnection) we will create a default context
+    // If no external context was set (e.g. by QHttpNetworkConnection) we will
+    // create a default context
     if (!sslContextPointer) {
         // create a deep copy of our configuration
         QSslConfigurationPrivate *configurationCopy = new QSslConfigurationPrivate(configuration);
diff --git a/src/network/ssl/qsslsocket_openssl11_symbols_p.h b/src/network/ssl/qsslsocket_openssl11_symbols_p.h
index a44d00a830..9d0a14360d 100644
--- a/src/network/ssl/qsslsocket_openssl11_symbols_p.h
+++ b/src/network/ssl/qsslsocket_openssl11_symbols_p.h
@@ -82,6 +82,7 @@ Q_AUTOTEST_EXPORT const BIO_METHOD *q_BIO_s_mem();
 
 int q_DSA_bits(DSA *a);
 int q_EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *c);
+Q_AUTOTEST_EXPORT int q_EVP_PKEY_up_ref(EVP_PKEY *a);
 int q_EVP_PKEY_base_id(EVP_PKEY *a);
 int q_RSA_bits(RSA *a);
 Q_AUTOTEST_EXPORT int q_OPENSSL_sk_num(OPENSSL_STACK *a);
diff --git a/src/network/ssl/qsslsocket_openssl_symbols.cpp b/src/network/ssl/qsslsocket_openssl_symbols.cpp
index aa1dc681e0..6f935a02e4 100644
--- a/src/network/ssl/qsslsocket_openssl_symbols.cpp
+++ b/src/network/ssl/qsslsocket_openssl_symbols.cpp
@@ -150,6 +150,7 @@ DEFINEFUNC(BIO *, BIO_new, const BIO_METHOD *a, a, return nullptr, return)
 DEFINEFUNC(const BIO_METHOD *, BIO_s_mem, void, DUMMYARG, return nullptr, return)
 DEFINEFUNC2(int, BN_is_word, BIGNUM *a, a, BN_ULONG w, w, return 0, return)
 DEFINEFUNC(int, EVP_CIPHER_CTX_reset, EVP_CIPHER_CTX *c, c, return 0, return)
+DEFINEFUNC(int, EVP_PKEY_up_ref, EVP_PKEY *a, a, return 0, return)
 DEFINEFUNC(int, EVP_PKEY_base_id, EVP_PKEY *a, a, return NID_undef, return)
 DEFINEFUNC(int, RSA_bits, RSA *a, a, return 0, return)
 DEFINEFUNC(int, DSA_bits, DSA *a, a, return 0, return)
@@ -358,6 +359,11 @@ DEFINEFUNC(const EVP_CIPHER *, EVP_des_ede3_cbc, DUMMYARG, DUMMYARG, return null
 #ifndef OPENSSL_NO_RC2
 DEFINEFUNC(const EVP_CIPHER *, EVP_rc2_cbc, DUMMYARG, DUMMYARG, return nullptr, return)
 #endif
+#ifndef OPENSSL_NO_AES
+DEFINEFUNC(const EVP_CIPHER *, EVP_aes_128_cbc, DUMMYARG, DUMMYARG, return nullptr, return)
+DEFINEFUNC(const EVP_CIPHER *, EVP_aes_192_cbc, DUMMYARG, DUMMYARG, return nullptr, return)
+DEFINEFUNC(const EVP_CIPHER *, EVP_aes_256_cbc, DUMMYARG, DUMMYARG, return nullptr, return)
+#endif
 DEFINEFUNC(const EVP_MD *, EVP_sha1, DUMMYARG, DUMMYARG, return nullptr, return)
 DEFINEFUNC3(int, EVP_PKEY_assign, EVP_PKEY *a, a, int b, b, char *c, c, return -1, return)
 DEFINEFUNC2(int, EVP_PKEY_set1_RSA, EVP_PKEY *a, a, RSA *b, b, return -1, return)
@@ -366,6 +372,7 @@ DEFINEFUNC2(int, EVP_PKEY_set1_DH, EVP_PKEY *a, a, DH *b, b, return -1, return)
 #ifndef OPENSSL_NO_EC
 DEFINEFUNC2(int, EVP_PKEY_set1_EC_KEY, EVP_PKEY *a, a, EC_KEY *b, b, return -1, return)
 #endif
+DEFINEFUNC2(int, EVP_PKEY_cmp, const EVP_PKEY *a, a, const EVP_PKEY *b, b, return -1, return)
 DEFINEFUNC(void, EVP_PKEY_free, EVP_PKEY *a, a, return, DUMMYARG)
 DEFINEFUNC(DSA *, EVP_PKEY_get1_DSA, EVP_PKEY *a, a, return nullptr, return)
 DEFINEFUNC(RSA *, EVP_PKEY_get1_RSA, EVP_PKEY *a, a, return nullptr, return)
@@ -686,7 +693,7 @@ static QStringList libraryPathList()
     // discover paths of already loaded libraries
     QSet<QString> loadedPaths;
     dl_iterate_phdr(dlIterateCallback, &loadedPaths);
-    paths.append(loadedPaths.toList());
+    paths.append(loadedPaths.values());
 #endif
 
     return paths;
@@ -955,6 +962,7 @@ bool q_resolveOpenSslSymbols()
     RESOLVEFUNC(OPENSSL_init_crypto)
     RESOLVEFUNC(ASN1_STRING_get0_data)
     RESOLVEFUNC(EVP_CIPHER_CTX_reset)
+    RESOLVEFUNC(EVP_PKEY_up_ref)
     RESOLVEFUNC(EVP_PKEY_base_id)
     RESOLVEFUNC(RSA_bits)
     RESOLVEFUNC(OPENSSL_sk_new_null)
@@ -1176,6 +1184,11 @@ bool q_resolveOpenSslSymbols()
 #ifndef OPENSSL_NO_RC2
     RESOLVEFUNC(EVP_rc2_cbc)
 #endif
+#ifndef OPENSSL_NO_AES
+    RESOLVEFUNC(EVP_aes_128_cbc)
+    RESOLVEFUNC(EVP_aes_192_cbc)
+    RESOLVEFUNC(EVP_aes_256_cbc)
+#endif
     RESOLVEFUNC(EVP_sha1)
     RESOLVEFUNC(EVP_PKEY_assign)
     RESOLVEFUNC(EVP_PKEY_set1_RSA)
@@ -1184,6 +1197,7 @@ bool q_resolveOpenSslSymbols()
 #ifndef OPENSSL_NO_EC
     RESOLVEFUNC(EVP_PKEY_set1_EC_KEY)
 #endif
+    RESOLVEFUNC(EVP_PKEY_cmp)
     RESOLVEFUNC(EVP_PKEY_free)
     RESOLVEFUNC(EVP_PKEY_get1_DSA)
     RESOLVEFUNC(EVP_PKEY_get1_RSA)
diff --git a/src/network/ssl/qsslsocket_openssl_symbols_p.h b/src/network/ssl/qsslsocket_openssl_symbols_p.h
index e09820b2f2..fcf96dbd47 100644
--- a/src/network/ssl/qsslsocket_openssl_symbols_p.h
+++ b/src/network/ssl/qsslsocket_openssl_symbols_p.h
@@ -281,14 +281,20 @@ const EVP_CIPHER *q_EVP_des_ede3_cbc();
 #ifndef OPENSSL_NO_RC2
 const EVP_CIPHER *q_EVP_rc2_cbc();
 #endif
+#ifndef OPENSSL_NO_AES
+const EVP_CIPHER *q_EVP_aes_128_cbc();
+const EVP_CIPHER *q_EVP_aes_192_cbc();
+const EVP_CIPHER *q_EVP_aes_256_cbc();
+#endif
 Q_AUTOTEST_EXPORT const EVP_MD *q_EVP_sha1();
 int q_EVP_PKEY_assign(EVP_PKEY *a, int b, char *c);
 Q_AUTOTEST_EXPORT int q_EVP_PKEY_set1_RSA(EVP_PKEY *a, RSA *b);
-int q_EVP_PKEY_set1_DSA(EVP_PKEY *a, DSA *b);
-int q_EVP_PKEY_set1_DH(EVP_PKEY *a, DH *b);
+Q_AUTOTEST_EXPORT int q_EVP_PKEY_set1_DSA(EVP_PKEY *a, DSA *b);
+Q_AUTOTEST_EXPORT int q_EVP_PKEY_set1_DH(EVP_PKEY *a, DH *b);
 #ifndef OPENSSL_NO_EC
-int q_EVP_PKEY_set1_EC_KEY(EVP_PKEY *a, EC_KEY *b);
+Q_AUTOTEST_EXPORT int q_EVP_PKEY_set1_EC_KEY(EVP_PKEY *a, EC_KEY *b);
 #endif
+Q_AUTOTEST_EXPORT int q_EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
 Q_AUTOTEST_EXPORT void q_EVP_PKEY_free(EVP_PKEY *a);
 RSA *q_EVP_PKEY_get1_RSA(EVP_PKEY *a);
 DSA *q_EVP_PKEY_get1_DSA(EVP_PKEY *a);
diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h
index ec472da2e8..d23b3ad550 100644
--- a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h
+++ b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h
@@ -372,7 +372,7 @@ private:
 class QGLEngineShaderProg
 {
 public:
-    QGLEngineShaderProg() : program(0) {}
+    QGLEngineShaderProg() : program(nullptr) {}
 
     ~QGLEngineShaderProg() {
         if (program)
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
index abf5b8ea48..762aac2f65 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
@@ -175,9 +175,9 @@ public:
 
     QGL2PaintEngineExPrivate(QGL2PaintEngineEx *q_ptr) :
             q(q_ptr),
-            shaderManager(0),
+            shaderManager(nullptr),
             width(0), height(0),
-            ctx(0),
+            ctx(nullptr),
             useSystemClip(true),
             elementIndicesVBOId(0),
             opacityArray(0),
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
index e76216ef5d..7c12ce8998 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
@@ -139,7 +139,7 @@ public:
 
     inline void setPaintEnginePrivate(QGL2PaintEngineExPrivate *p) { pex = p; }
 
-    inline const QOpenGLContextGroup *contextGroup() const { return m_textureResource ? m_textureResource->group() : 0; }
+    inline const QOpenGLContextGroup *contextGroup() const { return m_textureResource ? m_textureResource->group() : nullptr; }
 
     inline int serialNumber() const { return m_serialNumber; }
 
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index ed364283cc..4e52c0f5e9 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -203,7 +203,7 @@ const QGLContext *qt_gl_transfer_context(const QGLContext *);
 class QGLTemporaryContextPrivate;
 class QGLTemporaryContext {
 public:
-    explicit QGLTemporaryContext(bool directRendering = true, QWidget *parent = 0);
+    explicit QGLTemporaryContext(bool directRendering = true, QWidget *parent = nullptr);
     ~QGLTemporaryContext();
 
 private:
@@ -302,7 +302,7 @@ class Q_OPENGL_EXPORT QGLShareContextScope
 {
 public:
     QGLShareContextScope(const QGLContext *ctx)
-        : m_oldContext(0)
+        : m_oldContext(nullptr)
     {
         QGLContext *currentContext = const_cast<QGLContext *>(QGLContext::currentContext());
         if (currentContext != ctx && !QGLContext::areSharing(ctx, currentContext)) {
@@ -367,7 +367,7 @@ Q_SIGNALS:
 
 class QGLTexture {
 public:
-    explicit QGLTexture(QGLContext *ctx = 0, GLuint tx_id = 0, GLenum tx_target = GL_TEXTURE_2D,
+    explicit QGLTexture(QGLContext *ctx = nullptr, GLuint tx_id = 0, GLenum tx_target = GL_TEXTURE_2D,
                QGLContext::BindOptions opt = QGLContext::DefaultBindOption)
         : context(ctx),
           id(tx_id),
@@ -378,7 +378,7 @@ public:
     ~QGLTexture() {
         if (options & QGLContext::MemoryManagedBindOption) {
             Q_ASSERT(context);
-            QPlatformPixmap *boundPixmap = 0;
+            QPlatformPixmap *boundPixmap = nullptr;
             context->d_ptr->texture_destroyer->emitFreeTexture(context, boundPixmap, id);
         }
      }
@@ -392,9 +392,9 @@ public:
     bool canBindCompressedTexture
         (const char *buf, int len, const char *format, bool *hasAlpha);
     QSize bindCompressedTexture
-        (const QString& fileName, const char *format = 0);
+        (const QString& fileName, const char *format = nullptr);
     QSize bindCompressedTexture
-        (const char *buf, int len, const char *format = 0);
+        (const char *buf, int len, const char *format = nullptr);
     QSize bindCompressedTextureDDS(const char *buf, int len);
     QSize bindCompressedTexturePVR(const char *buf, int len);
 };
diff --git a/src/opengl/qglframebufferobject_p.h b/src/opengl/qglframebufferobject_p.h
index bf5e21cf0b..9d536527c3 100644
--- a/src/opengl/qglframebufferobject_p.h
+++ b/src/opengl/qglframebufferobject_p.h
@@ -124,9 +124,9 @@ private:
 class QGLFramebufferObjectPrivate
 {
 public:
-    QGLFramebufferObjectPrivate() : fbo_guard(0), texture_guard(0), depth_buffer_guard(0)
-                                  , stencil_buffer_guard(0), color_buffer_guard(0)
-                                  , valid(false), engine(0) {}
+    QGLFramebufferObjectPrivate() : fbo_guard(nullptr), texture_guard(nullptr), depth_buffer_guard(nullptr)
+                                  , stencil_buffer_guard(nullptr), color_buffer_guard(nullptr)
+                                  , valid(false), engine(nullptr) {}
     ~QGLFramebufferObjectPrivate() {}
 
     void init(QGLFramebufferObject *q, const QSize& sz,
diff --git a/src/opengl/qglpixelbuffer_p.h b/src/opengl/qglpixelbuffer_p.h
index 9125fcfb4b..2729ade2b6 100644
--- a/src/opengl/qglpixelbuffer_p.h
+++ b/src/opengl/qglpixelbuffer_p.h
@@ -77,7 +77,7 @@ private:
 class QGLPixelBufferPrivate {
     Q_DECLARE_PUBLIC(QGLPixelBuffer)
 public:
-    QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(0), widget(0), fbo(0), blit_fbo(0), pbuf(0), ctx(0)
+    QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(nullptr), widget(nullptr), fbo(nullptr), blit_fbo(nullptr), pbuf(nullptr), ctx(nullptr)
     {
     }
     bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
diff --git a/src/opengl/qgraphicsshadereffect_p.h b/src/opengl/qgraphicsshadereffect_p.h
index 1a32f24d70..218caa2936 100644
--- a/src/opengl/qgraphicsshadereffect_p.h
+++ b/src/opengl/qgraphicsshadereffect_p.h
@@ -67,7 +67,7 @@ class Q_OPENGL_EXPORT QGraphicsShaderEffect : public QGraphicsEffect
 {
     Q_OBJECT
 public:
-    QGraphicsShaderEffect(QObject *parent = 0);
+    QGraphicsShaderEffect(QObject *parent = nullptr);
     virtual ~QGraphicsShaderEffect();
 
     QByteArray pixelShaderFragment() const;
diff --git a/src/platformheaders/nativecontexts/qeglnativecontext.h b/src/platformheaders/nativecontexts/qeglnativecontext.h
index d4a0e998da..5af2b304fe 100644
--- a/src/platformheaders/nativecontexts/qeglnativecontext.h
+++ b/src/platformheaders/nativecontexts/qeglnativecontext.h
@@ -54,8 +54,8 @@ typedef int EGLDisplay;
 struct QEGLNativeContext
 {
     QEGLNativeContext()
-        : m_context(0),
-          m_display(0)
+        : m_context(nullptr),
+          m_display(nullptr)
     { }
 
     QEGLNativeContext(EGLContext ctx, EGLDisplay dpy)
diff --git a/src/platformsupport/devicediscovery/qdevicediscovery_p.h b/src/platformsupport/devicediscovery/qdevicediscovery_p.h
index b1ce14b5c3..f1f50e9708 100644
--- a/src/platformsupport/devicediscovery/qdevicediscovery_p.h
+++ b/src/platformsupport/devicediscovery/qdevicediscovery_p.h
@@ -86,7 +86,7 @@ public:
     Q_ENUM(QDeviceType)
     Q_DECLARE_FLAGS(QDeviceTypes, QDeviceType)
 
-    static QDeviceDiscovery *create(QDeviceTypes type, QObject *parent = 0);
+    static QDeviceDiscovery *create(QDeviceTypes type, QObject *parent = nullptr);
 
     virtual QStringList scanConnectedDevices() = 0;
 
diff --git a/src/platformsupport/devicediscovery/qdevicediscovery_udev_p.h b/src/platformsupport/devicediscovery/qdevicediscovery_udev_p.h
index 28618d0b21..82b475776d 100644
--- a/src/platformsupport/devicediscovery/qdevicediscovery_udev_p.h
+++ b/src/platformsupport/devicediscovery/qdevicediscovery_udev_p.h
@@ -61,7 +61,7 @@ class QDeviceDiscoveryUDev : public QDeviceDiscovery
     Q_OBJECT
 
 public:
-    QDeviceDiscoveryUDev(QDeviceTypes types, struct udev *udev, QObject *parent = 0);
+    QDeviceDiscoveryUDev(QDeviceTypes types, struct udev *udev, QObject *parent = nullptr);
     ~QDeviceDiscoveryUDev();
     QStringList scanConnectedDevices() override;
 
diff --git a/src/platformsupport/eglconvenience/qeglpbuffer_p.h b/src/platformsupport/eglconvenience/qeglpbuffer_p.h
index 0285e067a6..8ad2eb7248 100644
--- a/src/platformsupport/eglconvenience/qeglpbuffer_p.h
+++ b/src/platformsupport/eglconvenience/qeglpbuffer_p.h
@@ -60,7 +60,7 @@ class QEGLPbuffer : public QPlatformOffscreenSurface
 {
 public:
     QEGLPbuffer(EGLDisplay display, const QSurfaceFormat &format, QOffscreenSurface *offscreenSurface,
-                QEGLPlatformContext::Flags flags = 0);
+                QEGLPlatformContext::Flags flags = nullptr);
     ~QEGLPbuffer();
 
     QSurfaceFormat format() const override { return m_format; }
diff --git a/src/platformsupport/eglconvenience/qeglplatformcontext_p.h b/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
index d6cbbe4131..ed77c57df5 100644
--- a/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
+++ b/src/platformsupport/eglconvenience/qeglplatformcontext_p.h
@@ -68,8 +68,8 @@ public:
     Q_DECLARE_FLAGS(Flags, Flag)
 
     QEGLPlatformContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display,
-                        EGLConfig *config = 0, const QVariant &nativeHandle = QVariant(),
-                        Flags flags = 0);
+                        EGLConfig *config = nullptr, const QVariant &nativeHandle = QVariant(),
+                        Flags flags = nullptr);
     ~QEGLPlatformContext();
 
     void initialize() override;
diff --git a/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h b/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h
index c3d3070210..31a79dbc6c 100644
--- a/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h
+++ b/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h
@@ -131,6 +131,12 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERRELEASEKHRPROC) (EGLDisplay
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMEROUTPUTEXTPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLOutputLayerEXT layer);
 #endif
 
+#ifndef EGL_EXT_stream_acquire_mode
+#define EGL_EXT_stream_acquire_mode 1
+#define EGL_CONSUMER_AUTO_ACQUIRE_EXT         0x332B
+#define EGL_RESOURCE_BUSY_EXT                 0x3353
+#endif
+
 #ifndef EGL_EXT_platform_device
 #define EGL_PLATFORM_DEVICE_EXT           0x313F
 #endif
@@ -156,6 +162,11 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERACQUIREATTRIBNVPROC) (EGLDi
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERRELEASEATTRIBNVPROC) (EGLDisplay dpy, EGLStreamKHR stream, const EGLAttrib *attrib_list);
 #endif
 
+#ifndef EGL_NV_output_drm_flip_event
+#define EGL_NV_output_drm_flip_event 1
+#define EGL_DRM_FLIP_EVENT_DATA_NV            0x333E
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QEGLStreamConvenience
diff --git a/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h b/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
index 085a1c52f3..b9254d3071 100644
--- a/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
+++ b/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
@@ -64,7 +64,7 @@ class QPAEventDispatcherGlib : public QEventDispatcherGlib
     Q_DECLARE_PRIVATE(QPAEventDispatcherGlib)
 
 public:
-    explicit QPAEventDispatcherGlib(QObject *parent = 0);
+    explicit QPAEventDispatcherGlib(QObject *parent = nullptr);
     ~QPAEventDispatcherGlib();
 
     bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
@@ -77,7 +77,7 @@ class QPAEventDispatcherGlibPrivate : public QEventDispatcherGlibPrivate
 {
     Q_DECLARE_PUBLIC(QPAEventDispatcherGlib)
 public:
-    QPAEventDispatcherGlibPrivate(GMainContext *context = 0);
+    QPAEventDispatcherGlibPrivate(GMainContext *context = nullptr);
     GUserEventSource *userEventSource;
 };
 
diff --git a/src/platformsupport/eventdispatchers/qunixeventdispatcher_qpa_p.h b/src/platformsupport/eventdispatchers/qunixeventdispatcher_qpa_p.h
index 7f775b73ee..8157b8793d 100644
--- a/src/platformsupport/eventdispatchers/qunixeventdispatcher_qpa_p.h
+++ b/src/platformsupport/eventdispatchers/qunixeventdispatcher_qpa_p.h
@@ -61,7 +61,7 @@ class QUnixEventDispatcherQPA : public QEventDispatcherUNIX
     Q_OBJECT
 
 public:
-    explicit QUnixEventDispatcherQPA(QObject *parent = 0);
+    explicit QUnixEventDispatcherQPA(QObject *parent = nullptr);
     ~QUnixEventDispatcherQPA();
 
     bool processEvents(QEventLoop::ProcessEventsFlags flags);
diff --git a/src/platformsupport/fbconvenience/qfbvthandler_p.h b/src/platformsupport/fbconvenience/qfbvthandler_p.h
index 17d07317b2..d565ec3632 100644
--- a/src/platformsupport/fbconvenience/qfbvthandler_p.h
+++ b/src/platformsupport/fbconvenience/qfbvthandler_p.h
@@ -63,7 +63,7 @@ class QFbVtHandler : public QObject
     Q_OBJECT
 
 public:
-    QFbVtHandler(QObject *parent = 0);
+    QFbVtHandler(QObject *parent = nullptr);
     ~QFbVtHandler();
 
 signals:
diff --git a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
index 381db1ed12..40db7dbac7 100644
--- a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
+++ b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
@@ -121,13 +121,12 @@ class QtFreetypeData
 {
 public:
     QtFreetypeData()
-        : library(0), hasPatentFreeLcdRendering(false)
+        : library(0)
     { }
     ~QtFreetypeData();
 
     FT_Library library;
     QHash<QFontEngine::FaceId, QFreetypeFace *> faces;
-    bool hasPatentFreeLcdRendering;
 };
 
 QtFreetypeData::~QtFreetypeData()
@@ -153,11 +152,6 @@ QtFreetypeData *qt_getFreetypeData()
         FT_Bool no_darkening = false;
         FT_Property_Set(freetypeData->library, "cff", "no-stem-darkening", &no_darkening);
 #endif
-        // FreeType has since 2.8.1 a patent free alternative to LCD-filtering.
-        FT_Int amajor, aminor = 0, apatch = 0;
-        FT_Library_Version(freetypeData->library, &amajor, &aminor, &apatch);
-        if (QT_VERSION_CHECK(amajor, aminor, apatch) >= QT_VERSION_CHECK(2, 8, 1))
-            freetypeData->hasPatentFreeLcdRendering = true;
     }
     return freetypeData;
 }
@@ -561,26 +555,7 @@ QFontEngineFT::Glyph::~Glyph()
     delete [] data;
 }
 
-struct LcdFilterDummy
-{
-    static inline void filterPixel(uchar &, uchar &, uchar &)
-    {}
-};
-
-struct LcdFilterLegacy
-{
-    static inline void filterPixel(uchar &red, uchar &green, uchar &blue)
-    {
-        uint r = red, g = green, b = blue;
-        // intra-pixel filter used by the legacy filter (adopted from _ft_lcd_filter_legacy)
-        red   = (r * uint(65538 * 9/13) + g * uint(65538 * 1/6) + b * uint(65538 * 1/13)) / 65536;
-        green = (r * uint(65538 * 3/13) + g * uint(65538 * 4/6) + b * uint(65538 * 3/13)) / 65536;
-        blue  = (r * uint(65538 * 1/13) + g * uint(65538 * 1/6) + b * uint(65538 * 9/13)) / 65536;
-    }
-};
-
-template <typename LcdFilter>
-static void convertRGBToARGB_helper(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr)
+static inline void convertRGBToARGB(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr)
 {
     const int offs = bgr ? -1 : 1;
     const int w = width * 3;
@@ -590,7 +565,6 @@ static void convertRGBToARGB_helper(const uchar *src, uint *dst, int width, int
             uchar red = src[x + 1 - offs];
             uchar green = src[x + 1];
             uchar blue = src[x + 1 + offs];
-            LcdFilter::filterPixel(red, green, blue);
             *dd++ = (0xFFU << 24) | (red << 16) | (green << 8) | blue;
         }
         dst += width;
@@ -598,16 +572,7 @@ static void convertRGBToARGB_helper(const uchar *src, uint *dst, int width, int
     }
 }
 
-static inline void convertRGBToARGB(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr, bool legacyFilter)
-{
-    if (!legacyFilter)
-        convertRGBToARGB_helper<LcdFilterDummy>(src, dst, width, height, src_pitch, bgr);
-    else
-        convertRGBToARGB_helper<LcdFilterLegacy>(src, dst, width, height, src_pitch, bgr);
-}
-
-template <typename LcdFilter>
-static void convertRGBToARGB_V_helper(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr)
+static inline void convertRGBToARGB_V(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr)
 {
     const int offs = bgr ? -src_pitch : src_pitch;
     while (height--) {
@@ -615,54 +580,12 @@ static void convertRGBToARGB_V_helper(const uchar *src, uint *dst, int width, in
             uchar red = src[x + src_pitch - offs];
             uchar green = src[x + src_pitch];
             uchar blue = src[x + src_pitch + offs];
-            LcdFilter::filterPixel(red, green, blue);
             *dst++ = (0XFFU << 24) | (red << 16) | (green << 8) | blue;
         }
         src += 3*src_pitch;
     }
 }
 
-static inline void convertRGBToARGB_V(const uchar *src, uint *dst, int width, int height, int src_pitch, bool bgr, bool legacyFilter)
-{
-    if (!legacyFilter)
-        convertRGBToARGB_V_helper<LcdFilterDummy>(src, dst, width, height, src_pitch, bgr);
-    else
-        convertRGBToARGB_V_helper<LcdFilterLegacy>(src, dst, width, height, src_pitch, bgr);
-}
-
-static inline void convertGRAYToARGB(const uchar *src, uint *dst, int width, int height, int src_pitch)
-{
-    while (height--) {
-        const uchar *p = src;
-        const uchar * const e = p + width;
-        while (p < e) {
-            uchar gray = *p++;
-            *dst++ = (0xFFU << 24) | (gray << 16) | (gray << 8) | gray;
-        }
-        src += src_pitch;
-    }
-}
-
-static void convoluteBitmap(const uchar *src, uchar *dst, int width, int height, int pitch)
-{
-    // convolute the bitmap with a triangle filter to get rid of color fringes
-    // If we take account for a gamma value of 2, we end up with
-    // weights of 1, 4, 9, 4, 1. We use an approximation of 1, 3, 8, 3, 1 here,
-    // as this nicely sums up to 16 :)
-    int h = height;
-    while (h--) {
-        dst[0] = dst[1] = 0;
-        //
-        for (int x = 2; x < width - 2; ++x) {
-            uint sum = src[x-2] + 3*src[x-1] + 8*src[x] + 3*src[x+1] + src[x+2];
-            dst[x] = (uchar) (sum >> 4);
-        }
-        dst[width - 2] = dst[width - 1] = 0;
-        src += pitch;
-        dst += pitch;
-    }
-}
-
 static QFontEngine::SubpixelAntialiasingType subpixelAntialiasingTypeHint()
 {
     static int type = -1;
@@ -1153,196 +1076,97 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyph(QGlyphSet *set, uint glyph,
 
     int glyph_buffer_size = 0;
     QScopedArrayPointer<uchar> glyph_buffer;
-    bool useFreetypeRenderGlyph = false;
-    if (slot->format == FT_GLYPH_FORMAT_OUTLINE && (hsubpixel || vfactor != 1)) {
-        err = FT_Library_SetLcdFilter(slot->library, (FT_LcdFilter)lcdFilterType);
-        // We use FT_Render_Glyph if freetype has support for lcd-filtering
-        // or is version 2.8.1 or higher and can do without.
-        if (err == FT_Err_Ok || qt_getFreetypeData()->hasPatentFreeLcdRendering)
-            useFreetypeRenderGlyph = true;
+    FT_Render_Mode renderMode = (default_hint_style == HintLight) ? FT_RENDER_MODE_LIGHT : FT_RENDER_MODE_NORMAL;
+    switch (format) {
+    case Format_Mono:
+        renderMode = FT_RENDER_MODE_MONO;
+        break;
+    case Format_A32:
+        Q_ASSERT(hsubpixel || vfactor != 1);
+        renderMode = hsubpixel ? FT_RENDER_MODE_LCD : FT_RENDER_MODE_LCD_V;
+        break;
+    case Format_A8:
+    case Format_ARGB:
+        break;
+    default:
+        Q_UNREACHABLE();
     }
-    if (useFreetypeRenderGlyph) {
-        err = FT_Render_Glyph(slot, hsubpixel ? FT_RENDER_MODE_LCD : FT_RENDER_MODE_LCD_V);
-
-        if (err != FT_Err_Ok)
-            qWarning("render glyph failed err=%x face=%p, glyph=%d", err, face, glyph);
-
-        FT_Library_SetLcdFilter(slot->library, FT_LCD_FILTER_NONE);
+    FT_Library_SetLcdFilter(slot->library, (FT_LcdFilter)lcdFilterType);
 
-        info.height = slot->bitmap.rows / vfactor;
-        info.width = hsubpixel ? slot->bitmap.width / 3 : slot->bitmap.width;
-        info.x = slot->bitmap_left;
-        info.y = slot->bitmap_top;
+    err = FT_Render_Glyph(slot, renderMode);
+    if (err != FT_Err_Ok)
+        qWarning("render glyph failed err=%x face=%p, glyph=%d", err, face, glyph);
 
-        glyph_buffer_size = info.width * info.height * 4;
-        glyph_buffer.reset(new uchar[glyph_buffer_size]);
+    FT_Library_SetLcdFilter(slot->library, FT_LCD_FILTER_NONE);
 
-        if (hsubpixel)
-            convertRGBToARGB(slot->bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, slot->bitmap.pitch, subpixelType != Subpixel_RGB, false);
-        else if (vfactor != 1)
-            convertRGBToARGB_V(slot->bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, slot->bitmap.pitch, subpixelType != Subpixel_VRGB, false);
-    } else {
-    int left  = slot->metrics.horiBearingX;
-    int right = slot->metrics.horiBearingX + slot->metrics.width;
-    int top    = slot->metrics.horiBearingY;
-    int bottom = slot->metrics.horiBearingY - slot->metrics.height;
-    if (transform && slot->format != FT_GLYPH_FORMAT_BITMAP)
-        transformBoundingBox(&left, &top, &right, &bottom, &matrix);
-    left = FLOOR(left);
-    right = CEIL(right);
-    bottom = FLOOR(bottom);
-    top = CEIL(top);
-
-    int hpixels = TRUNC(right - left);
-    // subpixel position requires one more pixel
-    if (subPixelPosition > 0 && format != Format_Mono)
-        hpixels++;
-
-    if (hsubpixel)
-        hpixels = hpixels*3 + 8;
-    info.width = hpixels;
-    info.height = TRUNC(top - bottom);
-    info.x = TRUNC(left);
-    info.y = TRUNC(top);
-    if (hsubpixel) {
-        info.width /= 3;
-        info.x -= 1;
-    }
-
-    // If any of the metrics are too large to fit, don't cache them
-    if (areMetricsTooLarge(info))
-        return 0;
+    info.height = slot->bitmap.rows;
+    info.width = slot->bitmap.width;
+    info.x = slot->bitmap_left;
+    info.y = slot->bitmap_top;
+    if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_LCD)
+        info.width = info.width / 3;
+    if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_LCD_V)
+        info.height = info.height / vfactor;
 
     int pitch = (format == Format_Mono ? ((info.width + 31) & ~31) >> 3 :
                  (format == Format_A8 ? (info.width + 3) & ~3 : info.width * 4));
-    if (glyph_buffer_size < pitch * info.height) {
-        glyph_buffer_size = pitch * info.height;
-        glyph_buffer.reset(new uchar[glyph_buffer_size]);
-        memset(glyph_buffer.data(), 0, glyph_buffer_size);
-    }
 
-    if (slot->format == FT_GLYPH_FORMAT_OUTLINE) {
-        FT_Bitmap bitmap;
-        bitmap.rows = info.height*vfactor;
-        bitmap.width = hpixels;
-        bitmap.pitch = format == Format_Mono ? (((info.width + 31) & ~31) >> 3) : ((bitmap.width + 3) & ~3);
-        int bitmap_buffer_size = bitmap.rows * bitmap.pitch;
-        if (!hsubpixel && vfactor == 1 && format != Format_A32) {
-            Q_ASSERT(glyph_buffer_size <= bitmap_buffer_size);
-            bitmap.buffer = glyph_buffer.data();
-        } else {
-            bitmap.buffer = new uchar[bitmap_buffer_size];
-            memset(bitmap.buffer, 0, bitmap_buffer_size);
-        }
-        bitmap.pixel_mode = format == Format_Mono ? FT_PIXEL_MODE_MONO : FT_PIXEL_MODE_GRAY;
-        FT_Matrix matrix;
-        matrix.xx = (hsubpixel ? 3 : 1) << 16;
-        matrix.yy = vfactor << 16;
-        matrix.yx = matrix.xy = 0;
-
-        FT_Outline_Transform(&slot->outline, &matrix);
-        FT_Outline_Translate (&slot->outline, (hsubpixel ? -3*left +(4<<6) : -left), -bottom*vfactor);
-        FT_Outline_Get_Bitmap(slot->library, &slot->outline, &bitmap);
-        if (hsubpixel) {
-            Q_ASSERT (bitmap.pixel_mode == FT_PIXEL_MODE_GRAY);
-            Q_ASSERT(antialias);
-            uchar *convoluted = new uchar[bitmap_buffer_size];
-            bool useLegacyLcdFilter = false;
-            useLegacyLcdFilter = (lcdFilterType == FT_LCD_FILTER_LEGACY);
-            uchar *buffer = bitmap.buffer;
-            if (!useLegacyLcdFilter) {
-                convoluteBitmap(bitmap.buffer, convoluted, bitmap.width, info.height, bitmap.pitch);
-                buffer = convoluted;
-            }
-            convertRGBToARGB(buffer + 1, (uint *)glyph_buffer.data(), info.width, info.height, bitmap.pitch, subpixelType != Subpixel_RGB, useLegacyLcdFilter);
-            delete [] convoluted;
-        } else if (vfactor != 1) {
-            convertRGBToARGB_V(bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, bitmap.pitch, subpixelType != Subpixel_VRGB, true);
-        } else if (format == Format_A32 && bitmap.pixel_mode == FT_PIXEL_MODE_GRAY) {
-            convertGRAYToARGB(bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, bitmap.pitch);
-        }
+    glyph_buffer_size = info.height * pitch;
+    glyph_buffer.reset(new uchar[glyph_buffer_size]);
 
-        if (bitmap.buffer != glyph_buffer.data())
-            delete [] bitmap.buffer;
-    } else if (slot->format == FT_GLYPH_FORMAT_BITMAP) {
-#if ((FREETYPE_MAJOR*10000 + FREETYPE_MINOR*100) >= 20500)
-        Q_ASSERT(slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO || slot->bitmap.pixel_mode == FT_PIXEL_MODE_BGRA);
-#else
-        Q_ASSERT(slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO);
-#endif
+    if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) {
+        Q_ASSERT(format == Format_Mono);
         uchar *src = slot->bitmap.buffer;
         uchar *dst = glyph_buffer.data();
         int h = slot->bitmap.rows;
-        if (format == Format_Mono) {
-            int bytes = ((info.width + 7) & ~7) >> 3;
-            while (h--) {
-                memcpy (dst, src, bytes);
-                dst += pitch;
-                src += slot->bitmap.pitch;
-            }
-        } else if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) {
-            if (hsubpixel) {
-                while (h--) {
-                    uint *dd = (uint *)dst;
-                    *dd++ = 0;
-                    for (int x = 0; x < static_cast<int>(slot->bitmap.width); x++) {
-                        uint a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xffffff : 0x000000);
-                        *dd++ = a;
-                    }
-                    *dd++ = 0;
-                    dst += pitch;
-                    src += slot->bitmap.pitch;
-                }
-            } else if (vfactor != 1) {
-                while (h--) {
-                    uint *dd = (uint *)dst;
-                    for (int x = 0; x < static_cast<int>(slot->bitmap.width); x++) {
-                        uint a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xffffff : 0x000000);
-                        *dd++ = a;
-                    }
-                    dst += pitch;
-                    src += slot->bitmap.pitch;
-                }
-            } else {
-                while (h--) {
-                    for (int x = 0; x < static_cast<int>(slot->bitmap.width); x++) {
-                        unsigned char a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xff : 0x00);
-                        dst[x] = a;
-                    }
-                    dst += pitch;
-                    src += slot->bitmap.pitch;
-                }
-            }
+
+        int bytes = ((info.width + 7) & ~7) >> 3;
+        while (h--) {
+            memcpy (dst, src, bytes);
+            dst += pitch;
+            src += slot->bitmap.pitch;
         }
-#if ((FREETYPE_MAJOR*10000 + FREETYPE_MINOR*100) >= 20500)
-        else if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_BGRA)
-        {
-            while (h--) {
+    } else if (slot->bitmap.pixel_mode == 7 /*FT_PIXEL_MODE_BGRA*/) {
+        Q_ASSERT(format == Format_ARGB);
+        uchar *src = slot->bitmap.buffer;
+        uchar *dst = glyph_buffer.data();
+        int h = slot->bitmap.rows;
+        while (h--) {
 #if Q_BYTE_ORDER == Q_BIG_ENDIAN
-                const quint32 *srcPixel = (const quint32 *)src;
-                quint32 *dstPixel = (quint32 *)dst;
-                for (int x = 0; x < static_cast<int>(slot->bitmap.width); x++, srcPixel++, dstPixel++) {
-                    const quint32 pixel = *srcPixel;
-                    *dstPixel = qbswap(pixel);
-                }
+            const quint32 *srcPixel = (const quint32 *)src;
+            quint32 *dstPixel = (quint32 *)dst;
+            for (int x = 0; x < static_cast<int>(slot->bitmap.width); x++, srcPixel++, dstPixel++) {
+                const quint32 pixel = *srcPixel;
+                *dstPixel = qbswap(pixel);
+            }
 #else
-                memcpy(dst, src, slot->bitmap.width * 4);
+            memcpy(dst, src, slot->bitmap.width * 4);
 #endif
-                dst += slot->bitmap.pitch;
-                src += slot->bitmap.pitch;
-            }
-            info.width = info.linearAdvance = info.xOff = slot->bitmap.width;
-            info.height = slot->bitmap.rows;
-            info.x = slot->bitmap_left;
-            info.y = slot->bitmap_top;
+            dst += slot->bitmap.pitch;
+            src += slot->bitmap.pitch;
         }
-#endif
+        info.linearAdvance = info.xOff = slot->bitmap.width;
+    } else if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY) {
+        Q_ASSERT(format == Format_A8);
+        uchar *src = slot->bitmap.buffer;
+        uchar *dst = glyph_buffer.data();
+        int h = slot->bitmap.rows;
+        int bytes = info.width;
+        while (h--) {
+            memcpy (dst, src, bytes);
+            dst += pitch;
+            src += slot->bitmap.pitch;
+        }
+    } else if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_LCD) {
+        Q_ASSERT(format == Format_A32);
+        convertRGBToARGB(slot->bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, slot->bitmap.pitch, subpixelType != Subpixel_RGB);
+    } else if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_LCD_V) {
+        Q_ASSERT(format == Format_A32);
+        convertRGBToARGB_V(slot->bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, slot->bitmap.pitch, subpixelType != Subpixel_VRGB);
     } else {
-        qWarning("QFontEngine: Glyph neither outline nor bitmap format=%d", slot->format);
+        qWarning("QFontEngine: Glyph rendered in unknown pixel_mode=%d", slot->bitmap.pixel_mode);
         return 0;
     }
-    }
-
 
     if (!g) {
         g = new Glyph;
diff --git a/src/platformsupport/fontdatabases/freetype/qfontengine_ft_p.h b/src/platformsupport/fontdatabases/freetype/qfontengine_ft_p.h
index d498b0ac8b..2d1d5e6572 100644
--- a/src/platformsupport/fontdatabases/freetype/qfontengine_ft_p.h
+++ b/src/platformsupport/fontdatabases/freetype/qfontengine_ft_p.h
@@ -268,7 +268,7 @@ private:
     inline bool isScalableBitmap() const { return freetype->isScalableBitmap(); }
 
     inline Glyph *loadGlyph(uint glyph, QFixed subPixelPosition, GlyphFormat format = Format_None, bool fetchMetricsOnly = false, bool disableOutlineDrawing = false) const
-    { return loadGlyph(cacheEnabled ? &defaultGlyphSet : 0, glyph, subPixelPosition, format, fetchMetricsOnly, disableOutlineDrawing); }
+    { return loadGlyph(cacheEnabled ? &defaultGlyphSet : nullptr, glyph, subPixelPosition, format, fetchMetricsOnly, disableOutlineDrawing); }
     Glyph *loadGlyph(QGlyphSet *set, uint glyph, QFixed subPixelPosition, GlyphFormat = Format_None, bool fetchMetricsOnly = false, bool disableOutlineDrawing = false) const;
     Glyph *loadGlyphFor(glyph_t g, QFixed subPixelPosition, GlyphFormat format, const QTransform &t, bool fetchBoundingBox = false, bool disableOutlineDrawing = false);
 
diff --git a/src/platformsupport/fontdatabases/freetype/qfreetypefontdatabase.cpp b/src/platformsupport/fontdatabases/freetype/qfreetypefontdatabase.cpp
index adc2f6c1fe..25c10fbd3c 100644
--- a/src/platformsupport/fontdatabases/freetype/qfreetypefontdatabase.cpp
+++ b/src/platformsupport/fontdatabases/freetype/qfreetypefontdatabase.cpp
@@ -127,7 +127,7 @@ QStringList QFreeTypeFontDatabase::addTTFile(const QByteArray &fontData, const Q
             error = FT_New_Face(library, file.constData(), index, &face);
         }
         if (error != FT_Err_Ok) {
-            qDebug() << "FT_New_Face failed with index" << index << ':' << hex << error;
+            qDebug() << "FT_New_Face failed with index" << index << ':' << Qt::hex << error;
             break;
         }
         numFaces = face->num_faces;
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp
index c456f01b28..e1167823cf 100644
--- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp
+++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp
@@ -1514,7 +1514,7 @@ static void getFamiliesAndSignatures(const QByteArray &fontData,
         if (names.name.isEmpty())
             continue;
 
-        families->append(qMove(names));
+        families->append(std::move(names));
 
         if (values || signatures)
             getFontTable(data, font, MAKE_TAG('O', 'S', '/', '2'), &table, &length);
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
index fdef0f5ff1..a6b7fcf31e 100644
--- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
+++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
@@ -48,7 +48,11 @@
 #include <QtCore/QDir>
 #include <QtCore/QDirIterator>
 #include <QtCore/QSettings>
+#if QT_CONFIG(regularexpression)
 #include <QtCore/QRegularExpression>
+#else
+#include <QtCore/QRegExp>
+#endif
 #include <QtGui/QGuiApplication>
 #include <QtGui/QFontDatabase>
 
diff --git a/src/platformsupport/fontdatabases/windows/windows.pri b/src/platformsupport/fontdatabases/windows/windows.pri
index 9c529f55ea..7ddfb2c281 100644
--- a/src/platformsupport/fontdatabases/windows/windows.pri
+++ b/src/platformsupport/fontdatabases/windows/windows.pri
@@ -30,5 +30,5 @@ qtConfig(directwrite):qtConfig(direct2d) {
     DEFINES *= QT_NO_DIRECTWRITE
 }
 
-LIBS += -lole32 -lgdi32 -luser32 -ladvapi32
-mingw: LIBS += -luuid
+QMAKE_USE_PRIVATE += advapi32 ole32 user32 gdi32
+mingw: QMAKE_USE_PRIVATE += uuid
diff --git a/src/platformsupport/fontdatabases/winrt/winrt.pri b/src/platformsupport/fontdatabases/winrt/winrt.pri
index 7617df2e7a..1cd417c1fd 100644
--- a/src/platformsupport/fontdatabases/winrt/winrt.pri
+++ b/src/platformsupport/fontdatabases/winrt/winrt.pri
@@ -8,6 +8,4 @@ HEADERS += \
 
 DEFINES += __WRL_NO_DEFAULT_LIB__
 
-LIBS += -lws2_32
-
-QMAKE_USE_PRIVATE += dwrite_1
+QMAKE_USE_PRIVATE += dwrite_1 ws2_32
diff --git a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
index 666613f09d..02d6586fe8 100644
--- a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
+++ b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
@@ -66,7 +66,7 @@ Q_LOGGING_CATEGORY(qLcEvdevKeyMap, "qt.qpa.input.keymap")
 // simple builtin US keymap
 #include "qevdevkeyboard_defaultmap_p.h"
 
-void QFdContainer::reset() Q_DECL_NOTHROW
+void QFdContainer::reset() noexcept
 {
     if (m_fd >= 0)
         qt_safe_close(m_fd);
diff --git a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
index 21e6d055a0..d154c30ed5 100644
--- a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
+++ b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
@@ -134,13 +134,13 @@ class QFdContainer
     int m_fd;
     Q_DISABLE_COPY_MOVE(QFdContainer);
 public:
-    explicit QFdContainer(int fd = -1) Q_DECL_NOTHROW : m_fd(fd) {}
+    explicit QFdContainer(int fd = -1) noexcept : m_fd(fd) {}
     ~QFdContainer() { reset(); }
 
-    int get() const Q_DECL_NOTHROW { return m_fd; }
+    int get() const noexcept { return m_fd; }
 
-    int release() Q_DECL_NOTHROW { int result = m_fd; m_fd = -1; return result; }
-    void reset() Q_DECL_NOTHROW;
+    int release() noexcept { int result = m_fd; m_fd = -1; return result; }
+    void reset() noexcept;
 };
 
 class QEvdevKeyboardHandler : public QObject
diff --git a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardmanager_p.h b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardmanager_p.h
index 326e438a7c..01b7e9fc0e 100644
--- a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardmanager_p.h
+++ b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardmanager_p.h
@@ -64,7 +64,7 @@ QT_BEGIN_NAMESPACE
 class QEvdevKeyboardManager : public QObject
 {
 public:
-    QEvdevKeyboardManager(const QString &key, const QString &specification, QObject *parent = 0);
+    QEvdevKeyboardManager(const QString &key, const QString &specification, QObject *parent = nullptr);
     ~QEvdevKeyboardManager();
 
     void loadKeymap(const QString &file);
diff --git a/src/platformsupport/input/evdevmouse/qevdevmousemanager_p.h b/src/platformsupport/input/evdevmouse/qevdevmousemanager_p.h
index 13a8e3dec5..c63ca29a71 100644
--- a/src/platformsupport/input/evdevmouse/qevdevmousemanager_p.h
+++ b/src/platformsupport/input/evdevmouse/qevdevmousemanager_p.h
@@ -65,7 +65,7 @@ class QDeviceDiscovery;
 class QEvdevMouseManager : public QObject
 {
 public:
-    QEvdevMouseManager(const QString &key, const QString &specification, QObject *parent = 0);
+    QEvdevMouseManager(const QString &key, const QString &specification, QObject *parent = nullptr);
     ~QEvdevMouseManager();
 
     void handleMouseEvent(int x, int y, bool abs, Qt::MouseButtons buttons,
diff --git a/src/platformsupport/input/evdevtablet/qevdevtablethandler_p.h b/src/platformsupport/input/evdevtablet/qevdevtablethandler_p.h
index 66e821117a..b83bb21258 100644
--- a/src/platformsupport/input/evdevtablet/qevdevtablethandler_p.h
+++ b/src/platformsupport/input/evdevtablet/qevdevtablethandler_p.h
@@ -64,7 +64,7 @@ class QEvdevTabletData;
 class QEvdevTabletHandler : public QObject
 {
 public:
-    explicit QEvdevTabletHandler(const QString &device, const QString &spec = QString(), QObject *parent = 0);
+    explicit QEvdevTabletHandler(const QString &device, const QString &spec = QString(), QObject *parent = nullptr);
     ~QEvdevTabletHandler();
 
     qint64 deviceId() const;
@@ -83,7 +83,7 @@ private:
 class QEvdevTabletHandlerThread : public QDaemonThread
 {
 public:
-    explicit QEvdevTabletHandlerThread(const QString &device, const QString &spec, QObject *parent = 0);
+    explicit QEvdevTabletHandlerThread(const QString &device, const QString &spec, QObject *parent = nullptr);
     ~QEvdevTabletHandlerThread();
     void run() override;
     QEvdevTabletHandler *handler() { return m_handler; }
diff --git a/src/platformsupport/input/evdevtablet/qevdevtabletmanager_p.h b/src/platformsupport/input/evdevtablet/qevdevtabletmanager_p.h
index cde91c55aa..b598156e52 100644
--- a/src/platformsupport/input/evdevtablet/qevdevtabletmanager_p.h
+++ b/src/platformsupport/input/evdevtablet/qevdevtabletmanager_p.h
@@ -63,7 +63,7 @@ class QEvdevTabletHandlerThread;
 class QEvdevTabletManager : public QObject
 {
 public:
-    QEvdevTabletManager(const QString &key, const QString &spec, QObject *parent = 0);
+    QEvdevTabletManager(const QString &key, const QString &spec, QObject *parent = nullptr);
     ~QEvdevTabletManager();
 
     void addDevice(const QString &deviceNode);
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h b/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
index e524c516f1..b9b772fb3a 100644
--- a/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
@@ -63,7 +63,7 @@ class QEvdevTouchScreenHandlerThread;
 class QEvdevTouchManager : public QObject
 {
 public:
-    QEvdevTouchManager(const QString &key, const QString &spec, QObject *parent = 0);
+    QEvdevTouchManager(const QString &key, const QString &spec, QObject *parent = nullptr);
     ~QEvdevTouchManager();
 
     void addDevice(const QString &deviceNode);
diff --git a/src/platformsupport/input/libinput/qlibinputhandler.cpp b/src/platformsupport/input/libinput/qlibinputhandler.cpp
index 52eaa18f4b..bb81890a67 100644
--- a/src/platformsupport/input/libinput/qlibinputhandler.cpp
+++ b/src/platformsupport/input/libinput/qlibinputhandler.cpp
@@ -205,6 +205,9 @@ void QLibInputHandler::processEvent(libinput_event *ev)
     case LIBINPUT_EVENT_POINTER_MOTION:
         m_pointer->processMotion(libinput_event_get_pointer_event(ev));
         break;
+    case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
+        m_pointer->processAbsMotion(libinput_event_get_pointer_event(ev));
+        break;
     case LIBINPUT_EVENT_POINTER_AXIS:
         m_pointer->processAxis(libinput_event_get_pointer_event(ev));
         break;
diff --git a/src/platformsupport/input/libinput/qlibinputpointer.cpp b/src/platformsupport/input/libinput/qlibinputpointer.cpp
index c54b61fc66..db9e81b5df 100644
--- a/src/platformsupport/input/libinput/qlibinputpointer.cpp
+++ b/src/platformsupport/input/libinput/qlibinputpointer.cpp
@@ -103,6 +103,24 @@ void QLibInputPointer::processMotion(libinput_event_pointer *e)
                                              Qt::NoButton, QEvent::MouseMove, mods);
 }
 
+void QLibInputPointer::processAbsMotion(libinput_event_pointer *e)
+{
+    QScreen * const primaryScreen = QGuiApplication::primaryScreen();
+    const QRect g = QHighDpi::toNativePixels(primaryScreen->virtualGeometry(), primaryScreen);
+
+    const double x = libinput_event_pointer_get_absolute_x_transformed(e, g.width());
+    const double y = libinput_event_pointer_get_absolute_y_transformed(e, g.height());
+
+    m_pos.setX(qBound(g.left(), qRound(g.left() + x), g.right()));
+    m_pos.setY(qBound(g.top(), qRound(g.top() + y), g.bottom()));
+
+    Qt::KeyboardModifiers mods = QGuiApplicationPrivate::inputDeviceManager()->keyboardModifiers();
+
+    QWindowSystemInterface::handleMouseEvent(nullptr, m_pos, m_pos, m_buttons,
+                                             Qt::NoButton, QEvent::MouseMove, mods);
+
+}
+
 void QLibInputPointer::processAxis(libinput_event_pointer *e)
 {
     double value; // default axis value is 15 degrees per wheel click
diff --git a/src/platformsupport/input/libinput/qlibinputpointer_p.h b/src/platformsupport/input/libinput/qlibinputpointer_p.h
index a7a66337f1..55d4a5f919 100644
--- a/src/platformsupport/input/libinput/qlibinputpointer_p.h
+++ b/src/platformsupport/input/libinput/qlibinputpointer_p.h
@@ -64,6 +64,7 @@ public:
 
     void processButton(libinput_event_pointer *e);
     void processMotion(libinput_event_pointer *e);
+    void processAbsMotion(libinput_event_pointer *e);
     void processAxis(libinput_event_pointer *e);
 
     void setPos(const QPoint &pos);
diff --git a/src/platformsupport/input/libinput/qlibinputtouch_p.h b/src/platformsupport/input/libinput/qlibinputtouch_p.h
index 6f88001d19..51304e6a21 100644
--- a/src/platformsupport/input/libinput/qlibinputtouch_p.h
+++ b/src/platformsupport/input/libinput/qlibinputtouch_p.h
@@ -73,7 +73,7 @@ public:
 
 private:
     struct DeviceState {
-        DeviceState() : m_touchDevice(0) { }
+        DeviceState() : m_touchDevice(nullptr) { }
         QWindowSystemInterface::TouchPoint *point(int32_t slot);
         QList<QWindowSystemInterface::TouchPoint> m_points;
         QTouchDevice *m_touchDevice;
diff --git a/src/platformsupport/input/tslib/qtslib.cpp b/src/platformsupport/input/tslib/qtslib.cpp
index 7609416fea..df57147af6 100644
--- a/src/platformsupport/input/tslib/qtslib.cpp
+++ b/src/platformsupport/input/tslib/qtslib.cpp
@@ -57,38 +57,20 @@ QTsLibMouseHandler::QTsLibMouseHandler(const QString &key,
                                        const QString &specification,
                                        QObject *parent)
     : QObject(parent),
-    m_notify(0), m_x(0), m_y(0), m_pressed(0), m_rawMode(false)
+    m_rawMode(!key.compare(QLatin1String("TslibRaw"), Qt::CaseInsensitive))
 {
     qCDebug(qLcTsLib) << "Initializing tslib plugin" << key << specification;
     setObjectName(QLatin1String("TSLib Mouse Handler"));
 
-    QByteArray device = qgetenv("TSLIB_TSDEVICE");
-
-    if (specification.startsWith(QLatin1String("/dev/")))
-        device = specification.toLocal8Bit();
-
-    if (device.isEmpty())
-        device = QByteArrayLiteral("/dev/input/event1");
-
-    m_dev = ts_open(device.constData(), 1);
+    m_dev = ts_setup(nullptr, 1);
     if (!m_dev) {
-        qErrnoWarning(errno, "ts_open() failed");
+        qErrnoWarning(errno, "ts_setup() failed");
         return;
     }
 
-    if (ts_config(m_dev))
-        qErrnoWarning(errno, "ts_config() failed");
-
-    m_rawMode = !key.compare(QLatin1String("TslibRaw"), Qt::CaseInsensitive);
-
-    int fd = ts_fd(m_dev);
-    if (fd >= 0) {
-        qCDebug(qLcTsLib) << "tslib device is" << device;
-        m_notify = new QSocketNotifier(fd, QSocketNotifier::Read, this);
-        connect(m_notify, &QSocketNotifier::activated, this, &QTsLibMouseHandler::readMouseData);
-    } else {
-        qErrnoWarning(errno, "tslib: Cannot open input device %s", device.constData());
-    }
+    qCDebug(qLcTsLib) << "tslib device is" << ts_get_eventpath(m_dev);
+    m_notify = new QSocketNotifier(ts_fd(m_dev), QSocketNotifier::Read, this);
+    connect(m_notify, &QSocketNotifier::activated, this, &QTsLibMouseHandler::readMouseData);
 }
 
 QTsLibMouseHandler::~QTsLibMouseHandler()
diff --git a/src/platformsupport/input/tslib/qtslib_p.h b/src/platformsupport/input/tslib/qtslib_p.h
index 0c08fb6a3d..ffd60cd0e3 100644
--- a/src/platformsupport/input/tslib/qtslib_p.h
+++ b/src/platformsupport/input/tslib/qtslib_p.h
@@ -71,11 +71,12 @@ private slots:
     void readMouseData();
 
 private:
-    QSocketNotifier * m_notify;
+    QSocketNotifier * m_notify = nullptr;
     tsdev *m_dev;
-    int m_x, m_y;
-    bool m_pressed;
-    bool m_rawMode;
+    int m_x = 0;
+    int m_y = 0;
+    bool m_pressed = false;
+    const bool m_rawMode;
 };
 
 QT_END_NAMESPACE
diff --git a/src/platformsupport/kmsconvenience/qkmsdevice.cpp b/src/platformsupport/kmsconvenience/qkmsdevice.cpp
index 5f134f5867..5838c43eca 100644
--- a/src/platformsupport/kmsconvenience/qkmsdevice.cpp
+++ b/src/platformsupport/kmsconvenience/qkmsdevice.cpp
@@ -785,9 +785,7 @@ void QKmsDevice::discoverPlanes()
         for (int i = 0; i < countFormats; ++i) {
             uint32_t f = drmplane->formats[i];
             plane.supportedFormats.append(f);
-            QString s;
-            s.sprintf("%c%c%c%c ", f, f >> 8, f >> 16, f >> 24);
-            formatStr += s;
+            formatStr += QString::asprintf("%c%c%c%c ", f, f >> 8, f >> 16, f >> 24);
         }
 
         qCDebug(qLcKmsDebug, "plane %d: id = %u countFormats = %d possibleCrtcs = 0x%x supported formats = %s",
diff --git a/src/platformsupport/linuxaccessibility/atspiadaptor_p.h b/src/platformsupport/linuxaccessibility/atspiadaptor_p.h
index b5704f53ad..0b624389a3 100644
--- a/src/platformsupport/linuxaccessibility/atspiadaptor_p.h
+++ b/src/platformsupport/linuxaccessibility/atspiadaptor_p.h
@@ -76,7 +76,7 @@ class AtSpiAdaptor :public QDBusVirtualObject
     Q_OBJECT
 
 public:
-    explicit AtSpiAdaptor(DBusConnection *connection, QObject *parent = 0);
+    explicit AtSpiAdaptor(DBusConnection *connection, QObject *parent = nullptr);
     ~AtSpiAdaptor();
 
     void registerApplication();
diff --git a/src/platformsupport/linuxaccessibility/cache_p.h b/src/platformsupport/linuxaccessibility/cache_p.h
index e8529b779b..cc55acc6f8 100644
--- a/src/platformsupport/linuxaccessibility/cache_p.h
+++ b/src/platformsupport/linuxaccessibility/cache_p.h
@@ -65,7 +65,7 @@ class QSpiDBusCache : public QObject
     Q_OBJECT
 
 public:
-    explicit QSpiDBusCache(QDBusConnection c, QObject* parent = 0);
+    explicit QSpiDBusCache(QDBusConnection c, QObject* parent = nullptr);
     void emitAddAccessible(const QSpiAccessibleCacheItem& item);
     void emitRemoveAccessible(const QSpiObjectReference& item);
 
diff --git a/src/platformsupport/linuxaccessibility/dbusconnection_p.h b/src/platformsupport/linuxaccessibility/dbusconnection_p.h
index 4030fabc22..860c18ca05 100644
--- a/src/platformsupport/linuxaccessibility/dbusconnection_p.h
+++ b/src/platformsupport/linuxaccessibility/dbusconnection_p.h
@@ -65,7 +65,7 @@ class DBusConnection : public QObject
     Q_OBJECT
 
 public:
-    DBusConnection(QObject *parent = 0);
+    DBusConnection(QObject *parent = nullptr);
     QDBusConnection connection() const;
     bool isEnabled() const { return m_enabled; }
 
diff --git a/src/platformsupport/themes/genericunix/dbusmenu/qdbusmenuconnection_p.h b/src/platformsupport/themes/genericunix/dbusmenu/qdbusmenuconnection_p.h
index 7959f0c28a..f484795fbb 100644
--- a/src/platformsupport/themes/genericunix/dbusmenu/qdbusmenuconnection_p.h
+++ b/src/platformsupport/themes/genericunix/dbusmenu/qdbusmenuconnection_p.h
@@ -69,7 +69,7 @@ class QDBusMenuConnection : public QObject
     Q_OBJECT
 
 public:
-    QDBusMenuConnection(QObject *parent = 0, const QString &serviceName = QString());
+    QDBusMenuConnection(QObject *parent = nullptr, const QString &serviceName = QString());
     QDBusConnection connection() const { return m_connection; }
     QDBusServiceWatcher *dbusWatcher() const { return m_dbusWatcher; }
     bool isStatusNotifierHostRegistered() const { return m_statusNotifierHostRegistered; }
diff --git a/src/platformsupport/themes/genericunix/dbustray/qxdgnotificationproxy_p.h b/src/platformsupport/themes/genericunix/dbustray/qxdgnotificationproxy_p.h
index 352b4aa5d6..ab99ea65dd 100644
--- a/src/platformsupport/themes/genericunix/dbustray/qxdgnotificationproxy_p.h
+++ b/src/platformsupport/themes/genericunix/dbustray/qxdgnotificationproxy_p.h
@@ -88,7 +88,7 @@ public:
 
 public:
     QXdgNotificationInterface(const QString &service, const QString &path,
-                              const QDBusConnection &connection, QObject *parent = 0);
+                              const QDBusConnection &connection, QObject *parent = nullptr);
 
     ~QXdgNotificationInterface();
 
diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
index 6db25a90da..70d5616075 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
@@ -175,15 +175,9 @@ QStringList QGenericUnixTheme::xdgIconThemePaths()
     if (homeIconDir.isDir())
         paths.prepend(homeIconDir.absoluteFilePath());
 
-    QString xdgDirString = QFile::decodeName(qgetenv("XDG_DATA_DIRS"));
-    if (xdgDirString.isEmpty())
-        xdgDirString = QLatin1String("/usr/local/share/:/usr/share/");
-    const auto xdgDirs = xdgDirString.splitRef(QLatin1Char(':'));
-    for (const QStringRef &xdgDir : xdgDirs) {
-        const QFileInfo xdgIconsDir(xdgDir + QLatin1String("/icons"));
-        if (xdgIconsDir.isDir())
-            paths.append(xdgIconsDir.absoluteFilePath());
-    }
+    paths.append(QStandardPaths::locateAll(QStandardPaths::GenericDataLocation,
+                                           QStringLiteral("icons"),
+                                           QStandardPaths::LocateDirectory));
 
     return paths;
 }
diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h b/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
index a5963b79ea..c0da9d8370 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
@@ -109,7 +109,7 @@ public:
     QVariant themeHint(ThemeHint hint) const override;
 
     QIcon fileIcon(const QFileInfo &fileInfo,
-                   QPlatformTheme::IconOptions iconOptions = 0) const override;
+                   QPlatformTheme::IconOptions iconOptions = nullptr) const override;
 
     const QPalette *palette(Palette type = SystemPalette) const override;
 
@@ -134,7 +134,7 @@ public:
     QGnomeTheme();
     QVariant themeHint(ThemeHint hint) const override;
     QIcon fileIcon(const QFileInfo &fileInfo,
-                   QPlatformTheme::IconOptions = 0) const override;
+                   QPlatformTheme::IconOptions = nullptr) const override;
     const QFont *font(Font type) const override;
     QString standardButtonText(int button) const override;
 
diff --git a/src/platformsupport/vkconvenience/qvkconvenience.cpp b/src/platformsupport/vkconvenience/qvkconvenience.cpp
new file mode 100644
index 0000000000..462cdc9e0d
--- /dev/null
+++ b/src/platformsupport/vkconvenience/qvkconvenience.cpp
@@ -0,0 +1,215 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvkconvenience_p.h"
+
+#include <QOpenGLTexture>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QVkConvenience
+    \brief A collection of static helper functions for Vulkan support
+    \since 5.14
+    \internal
+    \ingroup qpa
+ */
+
+VkFormat QVkConvenience::vkFormatFromGlFormat(uint glFormat)
+{
+    using GlFormat = QOpenGLTexture::TextureFormat;
+    switch (glFormat) {
+    case GlFormat::NoFormat: return VK_FORMAT_UNDEFINED; // GL_NONE
+
+    // Unsigned normalized formats
+    case GlFormat::R8_UNorm: return VK_FORMAT_R8_UNORM; // GL_R8
+    case GlFormat::RG8_UNorm: return VK_FORMAT_R8G8_UNORM; // GL_RG8
+    case GlFormat::RGB8_UNorm: return VK_FORMAT_R8G8B8_UNORM; // GL_RGB8
+    case GlFormat::RGBA8_UNorm: return VK_FORMAT_R8G8B8A8_UNORM; // GL_RGBA8
+
+    case GlFormat::R16_UNorm: return VK_FORMAT_R16_UNORM; // GL_R16
+    case GlFormat::RG16_UNorm: return VK_FORMAT_R16G16_UNORM; // GL_RG16
+    case GlFormat::RGB16_UNorm: return VK_FORMAT_R16G16B16_UNORM; // GL_RGB16
+    case GlFormat::RGBA16_UNorm: return VK_FORMAT_R16G16B16A16_UNORM; // GL_RGBA16
+
+    // Signed normalized formats
+    case GlFormat::R8_SNorm: return VK_FORMAT_R8_SNORM; // GL_R8_SNORM
+    case GlFormat::RG8_SNorm: return VK_FORMAT_R8G8_SNORM; // GL_RG8_SNORM
+    case GlFormat::RGB8_SNorm: return VK_FORMAT_R8G8B8_SNORM; // GL_RGB8_SNORM
+    case GlFormat::RGBA8_SNorm: return VK_FORMAT_R8G8B8A8_SNORM; // GL_RGBA8_SNORM
+
+    case GlFormat::R16_SNorm: return VK_FORMAT_R16_SNORM; // GL_R16_SNORM
+    case GlFormat::RG16_SNorm: return VK_FORMAT_R16G16_SNORM; // GL_RG16_SNORM
+    case GlFormat::RGB16_SNorm: return VK_FORMAT_R16G16B16_SNORM; // GL_RGB16_SNORM
+    case GlFormat::RGBA16_SNorm: return VK_FORMAT_R16G16B16A16_SNORM; // GL_RGBA16_SNORM
+
+    // Unsigned integer formats
+    case GlFormat::R8U: return VK_FORMAT_R8_UINT; // GL_R8UI
+    case GlFormat::RG8U: return VK_FORMAT_R8G8_UINT; // GL_RG8UI
+    case GlFormat::RGB8U: return VK_FORMAT_R8G8B8_UINT; // GL_RGB8UI
+    case GlFormat::RGBA8U: return VK_FORMAT_R8G8B8A8_UINT; // GL_RGBA8UI
+
+    case GlFormat::R16U: return VK_FORMAT_R16_UINT; // GL_R16UI
+    case GlFormat::RG16U: return VK_FORMAT_R16G16_UINT; // GL_RG16UI
+    case GlFormat::RGB16U: return VK_FORMAT_R16G16B16_UINT; // GL_RGB16UI
+    case GlFormat::RGBA16U: return VK_FORMAT_R16G16B16A16_UINT; // GL_RGBA16UI
+
+    case GlFormat::R32U: return VK_FORMAT_R32_UINT; // GL_R32UI
+    case GlFormat::RG32U: return VK_FORMAT_R32G32_UINT; // GL_RG32UI
+    case GlFormat::RGB32U: return VK_FORMAT_R32G32B32_UINT; // GL_RGB32UI
+    case GlFormat::RGBA32U: return VK_FORMAT_R32G32B32A32_UINT; // GL_RGBA32UI
+
+    // Signed integer formats
+    case GlFormat::R8I: return VK_FORMAT_R8_SINT; // GL_R8I
+    case GlFormat::RG8I: return VK_FORMAT_R8G8_SINT; // GL_RG8I
+    case GlFormat::RGB8I: return VK_FORMAT_R8G8B8_SINT; // GL_RGB8I
+    case GlFormat::RGBA8I: return VK_FORMAT_R8G8B8A8_SINT; // GL_RGBA8I
+
+    case GlFormat::R16I: return VK_FORMAT_R16_SINT; // GL_R16I
+    case GlFormat::RG16I: return VK_FORMAT_R16G16_SINT; // GL_RG16I
+    case GlFormat::RGB16I: return VK_FORMAT_R16G16B16_SINT; // GL_RGB16I
+    case GlFormat::RGBA16I: return VK_FORMAT_R16G16B16A16_SINT; // GL_RGBA16I
+
+    case GlFormat::R32I: return VK_FORMAT_R32_SINT; // GL_R32I
+    case GlFormat::RG32I: return VK_FORMAT_R32G32_SINT; // GL_RG32I
+    case GlFormat::RGB32I: return VK_FORMAT_R32G32B32_SINT; // GL_RGB32I
+    case GlFormat::RGBA32I: return VK_FORMAT_R32G32B32A32_SINT; // GL_RGBA32I
+
+    // Floating point formats
+    case GlFormat::R16F: return VK_FORMAT_R16_SFLOAT; // GL_R16F
+    case GlFormat::RG16F: return VK_FORMAT_R16G16_SFLOAT; // GL_RG16F
+    case GlFormat::RGB16F: return VK_FORMAT_R16G16B16_SFLOAT; // GL_RGB16F
+    case GlFormat::RGBA16F: return VK_FORMAT_R16G16B16A16_SFLOAT; // GL_RGBA16F
+
+    case GlFormat::R32F: return VK_FORMAT_R32_SFLOAT; // GL_R32F
+    case GlFormat::RG32F: return VK_FORMAT_R32G32_SFLOAT; // GL_RG32F
+    case GlFormat::RGB32F: return VK_FORMAT_R32G32B32_SFLOAT; // GL_RGB32F
+    case GlFormat::RGBA32F: return VK_FORMAT_R32G32B32A32_SFLOAT; // GL_RGBA32F
+
+    // Packed formats
+    case GlFormat::RGB9E5: return VK_FORMAT_E5B9G9R9_UFLOAT_PACK32; // GL_RGB9_E5
+    case GlFormat::RG11B10F: return VK_FORMAT_B10G11R11_UFLOAT_PACK32; // GL_R11F_G11F_B10F
+//    case GlFormat::RG3B2: return VK_FORMAT_R3_G3_B2; // GL_R3_G3_B2
+    case GlFormat::R5G6B5: return VK_FORMAT_R5G6B5_UNORM_PACK16; // GL_RGB565
+    case GlFormat::RGB5A1: return VK_FORMAT_R5G5B5A1_UNORM_PACK16; // GL_RGB5_A1
+    case GlFormat::RGBA4: return VK_FORMAT_R4G4B4A4_UNORM_PACK16; // GL_RGBA4
+    case GlFormat::RGB10A2: return VK_FORMAT_A2R10G10B10_UINT_PACK32; // GL_RGB10_A2UI
+
+    // Depth formats
+//    case Format::D16: return VK_FORMAT_DEPTH_COMPONENT16; // GL_DEPTH_COMPONENT16
+//    case Format::D24: return VK_FORMAT_DEPTH_COMPONENT24; // GL_DEPTH_COMPONENT24
+//    case Format::D24S8: return VK_FORMAT_DEPTH24_STENCIL8; // GL_DEPTH24_STENCIL8
+//    case Format::D32: return VK_FORMAT_DEPTH_COMPONENT32; // GL_DEPTH_COMPONENT32
+//    case Format::D32F: return VK_FORMAT_DEPTH_COMPONENT32F; // GL_DEPTH_COMPONENT32F
+//    case Format::D32FS8X24: return VK_FORMAT_DEPTH32F_STENCIL8; // GL_DEPTH32F_STENCIL8
+//    case Format::S8: return VK_FORMAT_STENCIL_INDEX8; // GL_STENCIL_INDEX8
+
+    // Compressed formats
+    case GlFormat::RGB_DXT1: return VK_FORMAT_BC1_RGB_UNORM_BLOCK; // GL_COMPRESSED_RGB_S3TC_DXT1_EXT
+    case GlFormat::RGBA_DXT1: return VK_FORMAT_BC1_RGBA_UNORM_BLOCK; // GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
+    case GlFormat::RGBA_DXT3: return VK_FORMAT_BC2_UNORM_BLOCK; // GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
+    case GlFormat::RGBA_DXT5: return VK_FORMAT_BC3_UNORM_BLOCK; // GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
+    case GlFormat::R_ATI1N_UNorm: return VK_FORMAT_BC4_UNORM_BLOCK; // GL_COMPRESSED_RED_RGTC1
+    case GlFormat::R_ATI1N_SNorm: return VK_FORMAT_BC4_SNORM_BLOCK; // GL_COMPRESSED_SIGNED_RED_RGTC1
+    case GlFormat::RG_ATI2N_UNorm: return VK_FORMAT_BC5_UNORM_BLOCK; // GL_COMPRESSED_RG_RGTC2
+    case GlFormat::RG_ATI2N_SNorm: return VK_FORMAT_BC5_SNORM_BLOCK; // GL_COMPRESSED_SIGNED_RG_RGTC2
+    case GlFormat::RGB_BP_UNSIGNED_FLOAT: return VK_FORMAT_BC6H_UFLOAT_BLOCK; // GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB
+    case GlFormat::RGB_BP_SIGNED_FLOAT: return VK_FORMAT_BC6H_SFLOAT_BLOCK; // GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB
+    case GlFormat::RGB_BP_UNorm: return VK_FORMAT_BC7_UNORM_BLOCK; // GL_COMPRESSED_RGBA_BPTC_UNORM_ARB
+    case GlFormat::R11_EAC_UNorm: return VK_FORMAT_EAC_R11_UNORM_BLOCK; // GL_COMPRESSED_R11_EAC
+    case GlFormat::R11_EAC_SNorm: return VK_FORMAT_EAC_R11_SNORM_BLOCK; // GL_COMPRESSED_SIGNED_R11_EAC
+    case GlFormat::RG11_EAC_UNorm: return VK_FORMAT_EAC_R11G11_UNORM_BLOCK; // GL_COMPRESSED_RG11_EAC
+    case GlFormat::RG11_EAC_SNorm: return VK_FORMAT_EAC_R11G11_SNORM_BLOCK; // GL_COMPRESSED_SIGNED_RG11_EAC
+    case GlFormat::RGB8_ETC2: return VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK; // GL_COMPRESSED_RGB8_ETC2
+    case GlFormat::SRGB8_ETC2: return VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ETC2
+    case GlFormat::RGB8_PunchThrough_Alpha1_ETC2: return VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK; // GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
+    case GlFormat::SRGB8_PunchThrough_Alpha1_ETC2: return VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
+    case GlFormat::RGBA8_ETC2_EAC: return VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK; // GL_COMPRESSED_RGBA8_ETC2_EAC
+    case GlFormat::SRGB8_Alpha8_ETC2_EAC: return VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
+//    case GlFormat::RGB8_ETC1: return VK_FORMAT_ETC1_RGB8_OES; // GL_ETC1_RGB8_OES
+    case GlFormat::RGBA_ASTC_4x4: return VK_FORMAT_ASTC_4x4_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_4x4_KHR
+    case GlFormat::RGBA_ASTC_5x4: return VK_FORMAT_ASTC_5x4_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_5x4_KHR
+    case GlFormat::RGBA_ASTC_5x5: return VK_FORMAT_ASTC_5x5_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_5x5_KHR
+    case GlFormat::RGBA_ASTC_6x5: return VK_FORMAT_ASTC_6x5_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_6x5_KHR
+    case GlFormat::RGBA_ASTC_6x6: return VK_FORMAT_ASTC_6x6_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_6x6_KHR
+    case GlFormat::RGBA_ASTC_8x5: return VK_FORMAT_ASTC_8x5_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_8x5_KHR
+    case GlFormat::RGBA_ASTC_8x6: return VK_FORMAT_ASTC_8x6_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_8x6_KHR
+    case GlFormat::RGBA_ASTC_8x8: return VK_FORMAT_ASTC_8x8_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_8x8_KHR
+    case GlFormat::RGBA_ASTC_10x5: return VK_FORMAT_ASTC_10x5_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_10x5_KHR
+    case GlFormat::RGBA_ASTC_10x6: return VK_FORMAT_ASTC_10x6_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_10x6_KHR
+    case GlFormat::RGBA_ASTC_10x8: return VK_FORMAT_ASTC_10x8_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_10x8_KHR
+    case GlFormat::RGBA_ASTC_10x10: return VK_FORMAT_ASTC_10x10_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_10x10_KHR
+    case GlFormat::RGBA_ASTC_12x10: return VK_FORMAT_ASTC_12x10_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_12x10_KHR
+    case GlFormat::RGBA_ASTC_12x12: return VK_FORMAT_ASTC_12x12_UNORM_BLOCK; // GL_COMPRESSED_RGBA_ASTC_12x12_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_4x4: return VK_FORMAT_ASTC_4x4_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_5x4: return VK_FORMAT_ASTC_5x4_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_5x5: return VK_FORMAT_ASTC_5x5_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_6x5: return VK_FORMAT_ASTC_6x5_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_6x6: return VK_FORMAT_ASTC_6x6_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_8x5: return VK_FORMAT_ASTC_8x5_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_8x6: return VK_FORMAT_ASTC_8x6_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_8x8: return VK_FORMAT_ASTC_8x8_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_10x5: return VK_FORMAT_ASTC_10x5_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_10x6: return VK_FORMAT_ASTC_10x6_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_10x8: return VK_FORMAT_ASTC_10x8_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_10x10: return VK_FORMAT_ASTC_10x10_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_12x10: return VK_FORMAT_ASTC_12x10_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
+    case GlFormat::SRGB8_Alpha8_ASTC_12x12: return VK_FORMAT_ASTC_12x12_SRGB_BLOCK; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
+
+    // sRGB formats
+    case GlFormat::SRGB8: return VK_FORMAT_R8G8B8_SRGB; // GL_SRGB8
+    case GlFormat::SRGB8_Alpha8: return VK_FORMAT_R8G8B8A8_SRGB; // GL_SRGB8_ALPHA8
+    case GlFormat::SRGB_DXT1: return VK_FORMAT_BC1_RGB_SRGB_BLOCK; // GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
+    case GlFormat::SRGB_Alpha_DXT1: return VK_FORMAT_BC1_RGBA_SRGB_BLOCK; // GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
+    case GlFormat::SRGB_Alpha_DXT3: return VK_FORMAT_BC2_SRGB_BLOCK; // GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
+    case GlFormat::SRGB_Alpha_DXT5: return VK_FORMAT_BC3_SRGB_BLOCK; // GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
+    case GlFormat::SRGB_BP_UNorm: return VK_FORMAT_BC7_SRGB_BLOCK; // GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB
+
+    // ES 2 formats
+//    case GlFormat::DepthFormat: return VK_FORMAT_DEPTH_COMPONENT; // GL_DEPTH_COMPONENT
+//    case GlFormat::AlphaFormat: return VK_FORMAT_ALPHA; // GL_ALPHA
+//    case GlFormat::RGBFormat: return VK_FORMAT_RGB; // GL_RGB
+//    case GlFormat::RGBAFormat: return VK_FORMAT_RGBA; // GL_RGBA
+//    case GlFormat::LuminanceFormat: return VK_FORMAT_LUMINANCE; // GL_LUMINANCE
+//    case GlFormat::LuminanceAlphaFormat: return VK_FORMAT;
+    default: return VK_FORMAT_UNDEFINED;
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/mirclient/qmirclientdebugextension.h b/src/platformsupport/vkconvenience/qvkconvenience_p.h
index 0596561d77..1dd1dfc4a7 100644
--- a/src/plugins/platforms/mirclient/qmirclientdebugextension.h
+++ b/src/platformsupport/vkconvenience/qvkconvenience_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins of the Qt Toolkit.
@@ -37,27 +37,31 @@
 **
 ****************************************************************************/
 
+#ifndef QVKCONVENIENCE_P_H
+#define QVKCONVENIENCE_P_H
 
-#ifndef QMIRCLIENTDEBUGEXTENSION_H
-#define QMIRCLIENTDEBUGEXTENSION_H
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
 
-#include <QPoint>
-#include <QLibrary>
-struct MirSurface;
+#include <QtCore/qglobal.h>
+#include <qvulkaninstance.h>
 
-typedef bool (*MapperPrototype)(MirSurface* surface, int x, int y, int* screenX, int* screenY);
+QT_BEGIN_NAMESPACE
 
-
-class QMirClientDebugExtension
+class QVkConvenience
 {
 public:
-    QMirClientDebugExtension();
-
-    QPoint mapSurfacePointToScreen(MirSurface *, const QPoint &point);
-
-private:
-    QLibrary m_mirclientDebug;
-    MapperPrototype m_mapper;
+    static VkFormat vkFormatFromGlFormat(uint glFormat);
 };
 
-#endif // QMIRCLIENTDEBUGEXTENSION_H
+QT_END_NAMESPACE
+
+#endif // QVKCONVENIENCE_P_H
diff --git a/src/platformsupport/vkconvenience/vkconvenience.pro b/src/platformsupport/vkconvenience/vkconvenience.pro
index 7a4cdb041d..ee540024cf 100644
--- a/src/platformsupport/vkconvenience/vkconvenience.pro
+++ b/src/platformsupport/vkconvenience/vkconvenience.pro
@@ -8,9 +8,11 @@ DEFINES += QT_NO_CAST_FROM_ASCII
 PRECOMPILED_HEADER = ../../corelib/global/qt_pch.h
 
 SOURCES += \
+    qvkconvenience.cpp \
     qbasicvulkanplatforminstance.cpp
 
 HEADERS += \
+    qvkconvenience_p.h \
     qbasicvulkanplatforminstance_p.h
 
 load(qt_module)
diff --git a/src/plugins/bearer/connman/qconnmanengine.h b/src/plugins/bearer/connman/qconnmanengine.h
index c9ff17f801..ef80d38fa2 100644
--- a/src/plugins/bearer/connman/qconnmanengine.h
+++ b/src/plugins/bearer/connman/qconnmanengine.h
@@ -68,7 +68,7 @@ class QConnmanEngine : public QBearerEngineImpl
     Q_OBJECT
 
 public:
-    QConnmanEngine(QObject *parent = 0);
+    QConnmanEngine(QObject *parent = nullptr);
     ~QConnmanEngine();
 
     bool connmanAvailable() const;
diff --git a/src/plugins/bearer/connman/qconnmanservice_linux_p.h b/src/plugins/bearer/connman/qconnmanservice_linux_p.h
index d2804ebca6..790325f9a1 100644
--- a/src/plugins/bearer/connman/qconnmanservice_linux_p.h
+++ b/src/plugins/bearer/connman/qconnmanservice_linux_p.h
@@ -105,7 +105,7 @@ class QConnmanManagerInterface : public  QDBusAbstractInterface
 
 public:
 
-    QConnmanManagerInterface( QObject *parent = 0);
+    QConnmanManagerInterface( QObject *parent = nullptr);
     ~QConnmanManagerInterface();
 
     QDBusObjectPath path() const;
@@ -155,7 +155,7 @@ class QConnmanServiceInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QConnmanServiceInterface(const QString &dbusPathName,QObject *parent = 0);
+    explicit QConnmanServiceInterface(const QString &dbusPathName,QObject *parent = nullptr);
     ~QConnmanServiceInterface();
 
     QVariantMap getProperties();
@@ -202,7 +202,7 @@ class QConnmanTechnologyInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QConnmanTechnologyInterface(const QString &dbusPathName,QObject *parent = 0);
+    explicit QConnmanTechnologyInterface(const QString &dbusPathName,QObject *parent = nullptr);
     ~QConnmanTechnologyInterface();
 
     QString type();
diff --git a/src/plugins/bearer/generic/qgenericengine.h b/src/plugins/bearer/generic/qgenericengine.h
index 08960d66f6..79c71ca7a3 100644
--- a/src/plugins/bearer/generic/qgenericengine.h
+++ b/src/plugins/bearer/generic/qgenericengine.h
@@ -55,7 +55,7 @@ class QGenericEngine : public QBearerEngineImpl
     Q_OBJECT
 
 public:
-    QGenericEngine(QObject *parent = 0);
+    QGenericEngine(QObject *parent = nullptr);
     ~QGenericEngine();
 
     QString getInterfaceFromId(const QString &id) override;
diff --git a/src/plugins/bearer/linux_common/qofonoservice_linux_p.h b/src/plugins/bearer/linux_common/qofonoservice_linux_p.h
index 35614a20f2..62df5d4fa7 100644
--- a/src/plugins/bearer/linux_common/qofonoservice_linux_p.h
+++ b/src/plugins/bearer/linux_common/qofonoservice_linux_p.h
@@ -100,7 +100,7 @@ class QOfonoManagerInterface : public  QDBusAbstractInterface
 
 public:
 
-    QOfonoManagerInterface( QObject *parent = 0);
+    QOfonoManagerInterface( QObject *parent = nullptr);
     ~QOfonoManagerInterface();
 
     QStringList getModems();
@@ -120,7 +120,7 @@ class QOfonoModemInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QOfonoModemInterface(const QString &dbusModemPathName, QObject *parent = 0);
+    explicit QOfonoModemInterface(const QString &dbusModemPathName, QObject *parent = nullptr);
     ~QOfonoModemInterface();
 
     bool isPowered();
@@ -140,7 +140,7 @@ class QOfonoNetworkRegistrationInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QOfonoNetworkRegistrationInterface(const QString &dbusModemPathName, QObject *parent = 0);
+    explicit QOfonoNetworkRegistrationInterface(const QString &dbusModemPathName, QObject *parent = nullptr);
     ~QOfonoNetworkRegistrationInterface();
 
     QString getTechnology();
@@ -159,7 +159,7 @@ class QOfonoDataConnectionManagerInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QOfonoDataConnectionManagerInterface(const QString &dbusPathName, QObject *parent = 0);
+    explicit QOfonoDataConnectionManagerInterface(const QString &dbusPathName, QObject *parent = nullptr);
     ~QOfonoDataConnectionManagerInterface();
 
     QStringList contexts();
@@ -184,7 +184,7 @@ class QOfonoConnectionContextInterface : public QDBusAbstractInterface
 
 public:
 
-    explicit QOfonoConnectionContextInterface(const QString &dbusPathName, QObject *parent = 0);
+    explicit QOfonoConnectionContextInterface(const QString &dbusPathName, QObject *parent = nullptr);
     ~QOfonoConnectionContextInterface();
 
     QVariant getProperty(const QString &);
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
index 74fe24b5ab..a95c68abdf 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
@@ -69,7 +69,7 @@ class QNetworkManagerEngine : public QBearerEngineImpl
     Q_OBJECT
 
 public:
-    QNetworkManagerEngine(QObject *parent = 0);
+    QNetworkManagerEngine(QObject *parent = nullptr);
     ~QNetworkManagerEngine();
 
     bool networkManagerAvailable() const;
@@ -99,7 +99,7 @@ private Q_SLOTS:
     void interfacePropertiesChanged(const QMap<QString, QVariant> &properties);
     void activeConnectionPropertiesChanged(const QMap<QString, QVariant> &properties);
 
-    void newConnection(const QDBusObjectPath &path, QNetworkManagerSettings *settings = 0);
+    void newConnection(const QDBusObjectPath &path, QNetworkManagerSettings *settings = nullptr);
     void removeConnection(const QString &path);
     void updateConnection();
     void activationFinished(QDBusPendingCallWatcher *watcher);
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
index c879083faf..bff7a71097 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
@@ -152,7 +152,7 @@ public:
         NM_STATE_CONNECTED_GLOBAL = 70
     } NMState;
 
-    QNetworkManagerInterface(QObject *parent = 0);
+    QNetworkManagerInterface(QObject *parent = nullptr);
     ~QNetworkManagerInterface();
 
     QList <QDBusObjectPath> getDevices();
@@ -228,7 +228,7 @@ public:
 
     Q_DECLARE_FLAGS(ApSecurityFlags, ApSecurityFlag)
 
-    explicit QNetworkManagerInterfaceAccessPoint(const QString &dbusPathName, QObject *parent = 0);
+    explicit QNetworkManagerInterfaceAccessPoint(const QString &dbusPathName, QObject *parent = nullptr);
     ~QNetworkManagerInterfaceAccessPoint();
 
     quint32 flags() const;
@@ -259,7 +259,7 @@ class QNetworkManagerInterfaceDevice : public QDBusAbstractInterface
 
 public:
 
-    explicit QNetworkManagerInterfaceDevice(const QString &deviceObjectPath, QObject *parent = 0);
+    explicit QNetworkManagerInterfaceDevice(const QString &deviceObjectPath, QObject *parent = nullptr);
     ~QNetworkManagerInterfaceDevice();
 
     QString udi() const;
@@ -288,7 +288,7 @@ class QNetworkManagerInterfaceDeviceWired : public QDBusAbstractInterface
 public:
 
     explicit QNetworkManagerInterfaceDeviceWired(const QString &ifaceDevicePath,
-                                                 QObject *parent = 0);
+                                                 QObject *parent = nullptr);
     ~QNetworkManagerInterfaceDeviceWired();
 
     QString hwAddress() const;
@@ -325,7 +325,7 @@ public:
        };
 
     explicit QNetworkManagerInterfaceDeviceWireless(const QString &ifaceDevicePath,
-                                                    QObject *parent = 0);
+                                                    QObject *parent = nullptr);
     ~QNetworkManagerInterfaceDeviceWireless();
 
     QList <QDBusObjectPath> getAccessPoints();
@@ -367,7 +367,7 @@ public:
     Q_DECLARE_FLAGS(ModemCapabilities, ModemCapability)
 
     explicit QNetworkManagerInterfaceDeviceModem(const QString &ifaceDevicePath,
-                                                    QObject *parent = 0);
+                                                    QObject *parent = nullptr);
     ~QNetworkManagerInterfaceDeviceModem();
 
     ModemCapabilities modemCapabilities() const;
@@ -392,7 +392,7 @@ class QNetworkManagerSettings : public QDBusAbstractInterface
 
 public:
 
-    explicit QNetworkManagerSettings(const QString &settingsService, QObject *parent = 0);
+    explicit QNetworkManagerSettings(const QString &settingsService, QObject *parent = nullptr);
     ~QNetworkManagerSettings();
 
     QList <QDBusObjectPath> listConnections();
@@ -413,7 +413,7 @@ class QNetworkManagerSettingsConnection : public QDBusAbstractInterface
 
 public:
 
-    QNetworkManagerSettingsConnection(const QString &settingsService, const QString &connectionObjectPath, QObject *parent = 0);
+    QNetworkManagerSettingsConnection(const QString &settingsService, const QString &connectionObjectPath, QObject *parent = nullptr);
     ~QNetworkManagerSettingsConnection();
 
     QNmSettingsMap getSettings();
@@ -451,7 +451,7 @@ public:
         Activated = 2
        };
 
-    explicit QNetworkManagerConnectionActive(const QString &dbusPathName, QObject *parent = 0);
+    explicit QNetworkManagerConnectionActive(const QString &dbusPathName, QObject *parent = nullptr);
     ~ QNetworkManagerConnectionActive();
 
     QDBusObjectPath connection() const;
@@ -478,7 +478,7 @@ class QNetworkManagerIp4Config : public QDBusAbstractInterface
     Q_OBJECT
 
 public:
-    explicit QNetworkManagerIp4Config(const QString &dbusPathName, QObject *parent = 0);
+    explicit QNetworkManagerIp4Config(const QString &dbusPathName, QObject *parent = nullptr);
     ~QNetworkManagerIp4Config();
 
     QStringList domains() const;
@@ -489,7 +489,7 @@ class PropertiesDBusInterface : public QDBusAbstractInterface
 public:
     PropertiesDBusInterface(const QString &service, const QString &path,
                             const QString &interface, const QDBusConnection &connection,
-                            QObject *parent = 0)
+                            QObject *parent = nullptr)
         : QDBusAbstractInterface(service, path, interface.toLatin1().data(), connection, parent)
     {}
 };
diff --git a/src/plugins/bearer/nla/nla.pro b/src/plugins/bearer/nla/nla.pro
index 113d0667d2..76f3279d25 100644
--- a/src/plugins/bearer/nla/nla.pro
+++ b/src/plugins/bearer/nla/nla.pro
@@ -2,7 +2,7 @@ TARGET = qnlabearer
 
 QT = core core-private network network-private
 
-LIBS += -lws2_32
+QMAKE_USE_PRIVATE += ws2_32
 
 HEADERS += qnlaengine.h \
            ../platformdefs_win.h \
diff --git a/src/plugins/bearer/nla/qnlaengine.cpp b/src/plugins/bearer/nla/qnlaengine.cpp
index 726e1efb92..bf10e0cc1f 100644
--- a/src/plugins/bearer/nla/qnlaengine.cpp
+++ b/src/plugins/bearer/nla/qnlaengine.cpp
@@ -75,38 +75,38 @@ QWindowsSockInit2::~QWindowsSockInit2()
 #ifdef BEARER_MANAGEMENT_DEBUG
 static void printBlob(NLA_BLOB *blob)
 {
-    qDebug() << "==== BEGIN NLA_BLOB ====" << endl
+    qDebug() << "==== BEGIN NLA_BLOB ====" << Qt::endl
 
-             << "type:" << blob->header.type << endl
-             << "size:" << blob->header.dwSize << endl
+             << "type:" << blob->header.type << Qt::endl
+             << "size:" << blob->header.dwSize << Qt::endl
              << "next offset:" << blob->header.nextOffset;
 
     switch (blob->header.type) {
     case NLA_RAW_DATA:
-        qDebug() << "Raw Data" << endl
+        qDebug() << "Raw Data" << Qt::endl
                  << '\t' << blob->data.rawData;
         break;
     case NLA_INTERFACE:
-        qDebug() << "Interface" << endl
-                 << "\ttype:" << blob->data.interfaceData.dwType << endl
-                 << "\tspeed:" << blob->data.interfaceData.dwSpeed  << endl
+        qDebug() << "Interface" << Qt::endl
+                 << "\ttype:" << blob->data.interfaceData.dwType << Qt::endl
+                 << "\tspeed:" << blob->data.interfaceData.dwSpeed  << Qt::endl
                  << "\tadapter:" << blob->data.interfaceData.adapterName;
         break;
     case NLA_802_1X_LOCATION:
-        qDebug() << "802.1x Location" << endl
+        qDebug() << "802.1x Location" << Qt::endl
                  << '\t' << blob->data.locationData.information;
         break;
     case NLA_CONNECTIVITY:
-        qDebug() << "Connectivity" << endl
-                 << "\ttype:" << blob->data.connectivity.type << endl
+        qDebug() << "Connectivity" << Qt::endl
+                 << "\ttype:" << blob->data.connectivity.type << Qt::endl
                  << "\tinternet:" << blob->data.connectivity.internet;
         break;
     case NLA_ICS:
-        qDebug() << "ICS" << endl
-                 << "\tspeed:" << blob->data.ICS.remote.speed << endl
-                 << "\ttype:" << blob->data.ICS.remote.type << endl
-                 << "\tstate:" << blob->data.ICS.remote.state << endl
-                 << "\tmachine name:" << blob->data.ICS.remote.machineName << endl
+        qDebug() << "ICS" << Qt::endl
+                 << "\tspeed:" << blob->data.ICS.remote.speed << Qt::endl
+                 << "\ttype:" << blob->data.ICS.remote.type << Qt::endl
+                 << "\tstate:" << blob->data.ICS.remote.state << Qt::endl
+                 << "\tmachine name:" << blob->data.ICS.remote.machineName << Qt::endl
                  << "\tshared adapter name:" << blob->data.ICS.remote.sharedAdapterName;
         break;
     default:
diff --git a/src/plugins/bearer/qbearerengine_impl.h b/src/plugins/bearer/qbearerengine_impl.h
index 3f8a4d821d..5c003aaaf6 100644
--- a/src/plugins/bearer/qbearerengine_impl.h
+++ b/src/plugins/bearer/qbearerengine_impl.h
@@ -56,7 +56,7 @@ public:
         DisconnectionError,
     };
 
-    QBearerEngineImpl(QObject *parent = 0) : QBearerEngine(parent) {}
+    QBearerEngineImpl(QObject *parent = nullptr) : QBearerEngine(parent) {}
     ~QBearerEngineImpl() {}
 
     virtual void connectToId(const QString &id) = 0;
diff --git a/src/plugins/bearer/qnetworksession_impl.h b/src/plugins/bearer/qnetworksession_impl.h
index d9aa6ca8fb..0f8e014900 100644
--- a/src/plugins/bearer/qnetworksession_impl.h
+++ b/src/plugins/bearer/qnetworksession_impl.h
@@ -66,7 +66,7 @@ class QNetworkSessionPrivateImpl : public QNetworkSessionPrivate
 
 public:
     QNetworkSessionPrivateImpl()
-        : engine(0), startTime(0), lastError(QNetworkSession::UnknownSessionError), sessionTimeout(-1), currentPolicies(QNetworkSession::NoPolicy), opened(false)
+        : engine(nullptr), startTime(0), lastError(QNetworkSession::UnknownSessionError), sessionTimeout(-1), currentPolicies(QNetworkSession::NoPolicy), opened(false)
     {}
     ~QNetworkSessionPrivateImpl()
     {}
diff --git a/src/plugins/imageformats/jpeg/qjpeghandler.cpp b/src/plugins/imageformats/jpeg/qjpeghandler.cpp
index 54fe857908..9d5ccc8a3d 100644
--- a/src/plugins/imageformats/jpeg/qjpeghandler.cpp
+++ b/src/plugins/imageformats/jpeg/qjpeghandler.cpp
@@ -40,10 +40,14 @@
 #include "qjpeghandler_p.h"
 
 #include <qimage.h>
+#include <qcolorspace.h>
+#include <qcolortransform.h>
+#include <qdebug.h>
 #include <qvariant.h>
 #include <qvector.h>
 #include <qbuffer.h>
 #include <qmath.h>
+#include <private/qicc_p.h>
 #include <private/qsimd_p.h>
 #include <private/qimage_p.h>   // for qt_getImageText
 
@@ -725,6 +729,7 @@ public:
     QRect clipRect;
     QString description;
     QStringList readTexts;
+    QByteArray iccProfile;
 
     struct jpeg_decompress_struct info;
     struct my_jpeg_source_mgr * iod_src;
@@ -887,6 +892,7 @@ bool QJpegHandlerPrivate::readJpegHeader(QIODevice *device)
         if (!setjmp(err.setjmp_buffer)) {
             jpeg_save_markers(&info, JPEG_COM, 0xFFFF);
             jpeg_save_markers(&info, JPEG_APP0 + 1, 0xFFFF); // Exif uses APP1 marker
+            jpeg_save_markers(&info, JPEG_APP0 + 2, 0xFFFF); // ICC uses APP2 marker
 
             (void) jpeg_read_header(&info, TRUE);
 
@@ -919,6 +925,10 @@ bool QJpegHandlerPrivate::readJpegHeader(QIODevice *device)
                     readTexts.append(value);
                 } else if (marker->marker == JPEG_APP0 + 1) {
                     exifData.append((const char*)marker->data, marker->data_length);
+                } else if (marker->marker == JPEG_APP0 + 2) {
+                    if (marker->data_length > 128 + 4 + 14 && strcmp((const char *)marker->data, "ICC_PROFILE") == 0) {
+                        iccProfile.append((const char*)marker->data + 14, marker->data_length - 14);
+                    }
                 }
             }
 
@@ -954,6 +964,9 @@ bool QJpegHandlerPrivate::read(QImage *image)
             for (int i = 0; i < readTexts.size()-1; i+=2)
                 image->setText(readTexts.at(i), readTexts.at(i+1));
 
+            if (!iccProfile.isEmpty())
+                image->setColorSpace(QColorSpace::fromIccProfile(iccProfile));
+
             state = ReadingEnd;
             return true;
         }
@@ -962,7 +975,6 @@ bool QJpegHandlerPrivate::read(QImage *image)
     }
 
     return false;
-
 }
 
 Q_GUI_EXPORT void QT_FASTCALL qt_convert_rgb888_to_rgb32_neon(quint32 *dst, const uchar *src, int len);
diff --git a/src/plugins/platforminputcontexts/ibus/qibusinputcontextproxy.h b/src/plugins/platforminputcontexts/ibus/qibusinputcontextproxy.h
index 47a40ab8c2..396a213aaa 100644
--- a/src/plugins/platforminputcontexts/ibus/qibusinputcontextproxy.h
+++ b/src/plugins/platforminputcontexts/ibus/qibusinputcontextproxy.h
@@ -31,7 +31,7 @@ public:
     { return "org.freedesktop.IBus.InputContext"; }
 
 public:
-    QIBusInputContextProxy(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = 0);
+    QIBusInputContextProxy(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);
 
     ~QIBusInputContextProxy();
 
diff --git a/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.h b/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.h
index d4daea2eb3..8e7b8df120 100644
--- a/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.h
+++ b/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.h
@@ -59,9 +59,9 @@ class QIBusFilterEventWatcher: public QDBusPendingCallWatcher
 {
 public:
     explicit QIBusFilterEventWatcher(const QDBusPendingCall &call,
-                                     QObject *parent = 0,
-                                     QWindow *window = 0,
-                                     const Qt::KeyboardModifiers modifiers = 0,
+                                     QObject *parent = nullptr,
+                                     QWindow *window = nullptr,
+                                     const Qt::KeyboardModifiers modifiers = nullptr,
                                      const QVariantList arguments = QVariantList())
     : QDBusPendingCallWatcher(call, parent)
     , m_window(window)
diff --git a/src/plugins/platforminputcontexts/ibus/qibusproxy.h b/src/plugins/platforminputcontexts/ibus/qibusproxy.h
index 839e972c34..c9876deebf 100644
--- a/src/plugins/platforminputcontexts/ibus/qibusproxy.h
+++ b/src/plugins/platforminputcontexts/ibus/qibusproxy.h
@@ -35,7 +35,7 @@ public:
     { return QStringLiteral("org.freedesktop.DBus.Properties"); }
 
 public:
-    QIBusProxy(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = 0);
+    QIBusProxy(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);
 
     ~QIBusProxy();
 
diff --git a/src/plugins/platforms/android/androidjnimain.cpp b/src/plugins/platforms/android/androidjnimain.cpp
index 6ae429b24e..70dde46ffa 100644
--- a/src/plugins/platforms/android/androidjnimain.cpp
+++ b/src/plugins/platforms/android/androidjnimain.cpp
@@ -485,7 +485,7 @@ static jboolean startQtAndroidPlugin(JNIEnv *env, jobject /*object*/, jstring pa
     }
 
     if (Q_UNLIKELY(!m_main)) {
-        qCritical() << "dlsym failed:" << dlerror() << endl
+        qCritical() << "dlsym failed:" << dlerror() << Qt::endl
                     << "Could not find main method";
         return false;
     }
diff --git a/src/plugins/platforms/android/qandroidplatformwindow.h b/src/plugins/platforms/android/qandroidplatformwindow.h
index f2e51bd3df..5edd274759 100644
--- a/src/plugins/platforms/android/qandroidplatformwindow.h
+++ b/src/plugins/platforms/android/qandroidplatformwindow.h
@@ -65,6 +65,9 @@ public:
     void setParent(const QPlatformWindow *window) override;
     WId winId() const override { return m_windowId; }
 
+    bool setMouseGrabEnabled(bool grab) override { return false; }
+    bool setKeyboardGrabEnabled(bool grab) override { return false; }
+
     QAndroidPlatformScreen *platformScreen() const;
 
     void propagateSizeHints() override;
diff --git a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
index 368cf56c80..db4ec251ae 100644
--- a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
+++ b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
@@ -177,7 +177,7 @@ NSString *macRole(QAccessibleInterface *interface)
     if (roleMap.isEmpty())
         populateRoleMap();
 
-    // MAC_ACCESSIBILTY_DEBUG() << "role for" << interface.object() << "interface role" << hex << qtRole;
+    // MAC_ACCESSIBILTY_DEBUG() << "role for" << interface.object() << "interface role" << Qt::hex << qtRole;
 
     if (roleMap.contains(qtRole)) {
        // MAC_ACCESSIBILTY_DEBUG() << "return" <<  roleMap[qtRole];
diff --git a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
index d1695ea860..5f32400af0 100644
--- a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
@@ -51,7 +51,6 @@
 #include "qt_mac_p.h"
 #include "qcocoahelpers.h"
 #include "qcocoaeventdispatcher.h"
-#include <qregexp.h>
 #include <qbuffer.h>
 #include <qdebug.h>
 #include <qstringlist.h>
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index e54b6284e5..32fc3ab660 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -53,6 +53,7 @@
 #include <QtGui/private/qcoregraphics_p.h>
 
 #include <QtCore/QDebug>
+#include <QtCore/QRegExp>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/plugins/platforms/cocoa/qnsview_gestures.mm b/src/plugins/platforms/cocoa/qnsview_gestures.mm
index 61d551ee0e..f6cd3af4da 100644
--- a/src/plugins/platforms/cocoa/qnsview_gestures.mm
+++ b/src/plugins/platforms/cocoa/qnsview_gestures.mm
@@ -70,7 +70,7 @@ Q_LOGGING_CATEGORY(lcQpaGestures, "qt.qpa.input.gestures")
     if ([self handleGestureAsBeginEnd:event])
         return;
 
-    qCDebug(lcQpaGestures) << "magnifyWithEvent" << [event magnification] << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaGestures) << "magnifyWithEvent" << [event magnification] << "from device" << Qt::hex << [event deviceID];
     const NSTimeInterval timestamp = [event timestamp];
     QPointF windowPoint;
     QPointF screenPoint;
@@ -85,7 +85,7 @@ Q_LOGGING_CATEGORY(lcQpaGestures, "qt.qpa.input.gestures")
         return;
 
     static bool zoomIn = true;
-    qCDebug(lcQpaGestures) << "smartMagnifyWithEvent" << zoomIn << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaGestures) << "smartMagnifyWithEvent" << zoomIn << "from device" << Qt::hex << [event deviceID];
     const NSTimeInterval timestamp = [event timestamp];
     QPointF windowPoint;
     QPointF screenPoint;
@@ -116,7 +116,7 @@ Q_LOGGING_CATEGORY(lcQpaGestures, "qt.qpa.input.gestures")
     if (!m_platformWindow)
         return;
 
-    qCDebug(lcQpaGestures) << "swipeWithEvent" << [event deltaX] << [event deltaY] << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaGestures) << "swipeWithEvent" << [event deltaX] << [event deltaY] << "from device" << Qt::hex << [event deviceID];
     const NSTimeInterval timestamp = [event timestamp];
     QPointF windowPoint;
     QPointF screenPoint;
@@ -145,7 +145,7 @@ Q_LOGGING_CATEGORY(lcQpaGestures, "qt.qpa.input.gestures")
     QPointF windowPoint;
     QPointF screenPoint;
     [self convertFromScreen:[self screenMousePoint:event] toWindowPoint:&windowPoint andScreenPoint:&screenPoint];
-    qCDebug(lcQpaGestures) << "beginGestureWithEvent @" << windowPoint << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaGestures) << "beginGestureWithEvent @" << windowPoint << "from device" << Qt::hex << [event deviceID];
     QWindowSystemInterface::handleGestureEvent(m_platformWindow->window(), QCocoaTouch::getTouchDevice(QTouchDevice::TouchPad, [event deviceID]),  timestamp, Qt::BeginNativeGesture,
                                                windowPoint, screenPoint);
 }
@@ -155,7 +155,7 @@ Q_LOGGING_CATEGORY(lcQpaGestures, "qt.qpa.input.gestures")
     if (!m_platformWindow)
         return;
 
-    qCDebug(lcQpaGestures) << "endGestureWithEvent" << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaGestures) << "endGestureWithEvent" << "from device" << Qt::hex << [event deviceID];
     const NSTimeInterval timestamp = [event timestamp];
     QPointF windowPoint;
     QPointF screenPoint;
diff --git a/src/plugins/platforms/cocoa/qnsview_mouse.mm b/src/plugins/platforms/cocoa/qnsview_mouse.mm
index d4419b42a4..4408385aa8 100644
--- a/src/plugins/platforms/cocoa/qnsview_mouse.mm
+++ b/src/plugins/platforms/cocoa/qnsview_mouse.mm
@@ -222,6 +222,11 @@
         return NO;
     if ([self isTransparentForUserInput])
         return NO;
+    QPointF windowPoint;
+    QPointF screenPoint;
+    [self convertFromScreen:[NSEvent mouseLocation] toWindowPoint: &windowPoint andScreenPoint: &screenPoint];
+    if (!qt_window_private(m_platformWindow->window())->allowClickThrough(screenPoint.toPoint()))
+        return NO;
     return YES;
 }
 
diff --git a/src/plugins/platforms/cocoa/qnsview_touch.mm b/src/plugins/platforms/cocoa/qnsview_touch.mm
index e789213f70..9330844aec 100644
--- a/src/plugins/platforms/cocoa/qnsview_touch.mm
+++ b/src/plugins/platforms/cocoa/qnsview_touch.mm
@@ -60,7 +60,7 @@ Q_LOGGING_CATEGORY(lcQpaTouch, "qt.qpa.input.touch")
 
     const NSTimeInterval timestamp = [event timestamp];
     const QList<QWindowSystemInterface::TouchPoint> points = QCocoaTouch::getCurrentTouchPointList(event, [self shouldSendSingleTouch]);
-    qCDebug(lcQpaTouch) << "touchesBeganWithEvent" << points << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaTouch) << "touchesBeganWithEvent" << points << "from device" << Qt::hex << [event deviceID];
     QWindowSystemInterface::handleTouchEvent(m_platformWindow->window(), timestamp * 1000, QCocoaTouch::getTouchDevice(QTouchDevice::TouchPad, [event deviceID]), points);
 }
 
@@ -71,7 +71,7 @@ Q_LOGGING_CATEGORY(lcQpaTouch, "qt.qpa.input.touch")
 
     const NSTimeInterval timestamp = [event timestamp];
     const QList<QWindowSystemInterface::TouchPoint> points = QCocoaTouch::getCurrentTouchPointList(event, [self shouldSendSingleTouch]);
-    qCDebug(lcQpaTouch) << "touchesMovedWithEvent" << points << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaTouch) << "touchesMovedWithEvent" << points << "from device" << Qt::hex << [event deviceID];
     QWindowSystemInterface::handleTouchEvent(m_platformWindow->window(), timestamp * 1000, QCocoaTouch::getTouchDevice(QTouchDevice::TouchPad, [event deviceID]), points);
 }
 
@@ -82,7 +82,7 @@ Q_LOGGING_CATEGORY(lcQpaTouch, "qt.qpa.input.touch")
 
     const NSTimeInterval timestamp = [event timestamp];
     const QList<QWindowSystemInterface::TouchPoint> points = QCocoaTouch::getCurrentTouchPointList(event, [self shouldSendSingleTouch]);
-    qCDebug(lcQpaTouch) << "touchesEndedWithEvent" << points << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaTouch) << "touchesEndedWithEvent" << points << "from device" << Qt::hex << [event deviceID];
     QWindowSystemInterface::handleTouchEvent(m_platformWindow->window(), timestamp * 1000, QCocoaTouch::getTouchDevice(QTouchDevice::TouchPad, [event deviceID]), points);
 }
 
@@ -93,7 +93,7 @@ Q_LOGGING_CATEGORY(lcQpaTouch, "qt.qpa.input.touch")
 
     const NSTimeInterval timestamp = [event timestamp];
     const QList<QWindowSystemInterface::TouchPoint> points = QCocoaTouch::getCurrentTouchPointList(event, [self shouldSendSingleTouch]);
-    qCDebug(lcQpaTouch) << "touchesCancelledWithEvent" << points << "from device" << hex << [event deviceID];
+    qCDebug(lcQpaTouch) << "touchesCancelledWithEvent" << points << "from device" << Qt::hex << [event deviceID];
     QWindowSystemInterface::handleTouchEvent(m_platformWindow->window(), timestamp * 1000, QCocoaTouch::getTouchDevice(QTouchDevice::TouchPad, [event deviceID]), points);
 }
 
diff --git a/src/plugins/platforms/direct2d/direct2d.pro b/src/plugins/platforms/direct2d/direct2d.pro
index 9764272632..6e73bd14f9 100644
--- a/src/plugins/platforms/direct2d/direct2d.pro
+++ b/src/plugins/platforms/direct2d/direct2d.pro
@@ -8,8 +8,8 @@ QT += \
 qtConfig(accessibility): QT += accessibility_support-private
 qtConfig(vulkan): QT += vulkan_support-private
 
-LIBS += -ldwmapi -lversion -lgdi32
-QMAKE_USE_PRIVATE += dwrite_1 d2d1_1 d3d11_1 dxgi1_2
+LIBS += -ldwmapi -lversion
+QMAKE_USE_PRIVATE += gdi32 dwrite_1 d2d1_1 d3d11_1 dxgi1_2
 
 include(../windows/windows.pri)
 
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
index 24051c352e..09a10bcc9c 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
@@ -157,7 +157,7 @@ gbm_surface *QEglFSKmsGbmScreen::createSurface(EGLConfig eglConfig)
         const auto gbmDevice = static_cast<QEglFSKmsGbmDevice *>(device())->gbmDevice();
         EGLint native_format = -1;
         EGLBoolean success = eglGetConfigAttrib(display(), eglConfig, EGL_NATIVE_VISUAL_ID, &native_format);
-        qCDebug(qLcEglfsKmsDebug) << "Got native format" << hex << native_format << dec << "from eglGetConfigAttrib() with return code" << bool(success);
+        qCDebug(qLcEglfsKmsDebug) << "Got native format" << Qt::hex << native_format << Qt::dec << "from eglGetConfigAttrib() with return code" << bool(success);
 
         if (success)
             m_gbm_surface = gbm_surface_create(gbmDevice,
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
index 3e78196227..2c6b4245b7 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
@@ -114,16 +114,20 @@ public:
         : QEglFSWindow(w)
         , m_integration(integration)
         , m_egl_stream(EGL_NO_STREAM_KHR)
+        , m_framePending(false)
     { }
 
     ~QEglFSKmsEglDeviceWindow() { destroy(); }
 
     void invalidateSurface() override;
     void resetSurface() override;
+    void flip();
+    static void pageFlipHandler(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data);
 
     const QEglFSKmsEglDeviceIntegration *m_integration;
     EGLStreamKHR m_egl_stream;
     EGLint m_latency;
+    bool m_framePending;
 };
 
 void QEglFSKmsEglDeviceWindow::invalidateSurface()
@@ -144,6 +148,9 @@ void QEglFSKmsEglDeviceWindow::resetSurface()
         streamAttribs[streamAttribCount++] = EGL_STREAM_FIFO_LENGTH_KHR;
         streamAttribs[streamAttribCount++] = fifoLength;
     }
+
+    streamAttribs[streamAttribCount++] = EGL_CONSUMER_AUTO_ACQUIRE_EXT;
+    streamAttribs[streamAttribCount++] = EGL_FALSE;
     streamAttribs[streamAttribCount++] = EGL_NONE;
 
     m_egl_stream = m_integration->m_funcs->create_stream(display, streamAttribs);
@@ -241,6 +248,49 @@ void QEglFSKmsEglDeviceWindow::resetSurface()
     qCDebug(qLcEglfsKmsDebug, "Created stream producer surface %p", m_surface);
 }
 
+void QEglFSKmsEglDeviceWindow::flip()
+{
+    EGLDisplay display = screen()->display();
+
+    EGLAttrib acquire_attribs[3] = { EGL_NONE };
+
+    acquire_attribs[0] = EGL_DRM_FLIP_EVENT_DATA_NV;
+    acquire_attribs[1] = (EGLAttrib)this;
+    acquire_attribs[2] = EGL_NONE;
+
+    if (m_egl_stream != EGL_NO_STREAM_KHR)
+        if (!m_integration->m_funcs->acquire_stream_attrib_nv(display, m_egl_stream, acquire_attribs))
+            qWarning("eglStreamConsumerAcquireAttribNV failed: eglError: %x", eglGetError());
+
+    m_framePending = true;
+
+    while (m_framePending) {
+        drmEventContext drmEvent;
+        memset(&drmEvent, 0, sizeof(drmEvent));
+        drmEvent.version = 3;
+        drmEvent.vblank_handler = nullptr;
+        drmEvent.page_flip_handler = pageFlipHandler;
+        drmHandleEvent(m_integration->m_device->fd(), &drmEvent);
+    }
+}
+
+void QEglFSKmsEglDeviceWindow::pageFlipHandler(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data)
+{
+    Q_UNUSED(fd);
+    Q_UNUSED(sequence);
+    Q_UNUSED(tv_sec);
+    Q_UNUSED(tv_usec);
+
+    QEglFSKmsEglDeviceWindow *window = static_cast<QEglFSKmsEglDeviceWindow*>(user_data);
+    window->m_framePending = false;
+}
+
+void QEglFSKmsEglDeviceIntegration::presentBuffer(QPlatformSurface *surface)
+{
+    QEglFSKmsEglDeviceWindow *eglWindow = static_cast<QEglFSKmsEglDeviceWindow*>(surface);
+    eglWindow->flip();
+}
+
 QEglFSWindow *QEglFSKmsEglDeviceIntegration::createWindow(QWindow *window) const
 {
     QEglFSKmsEglDeviceWindow *eglWindow = new QEglFSKmsEglDeviceWindow(window, this);
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.h b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.h
index 5819d82ebf..a5697ec831 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.h
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.h
@@ -62,6 +62,8 @@ public:
     bool supportsPBuffers() const override;
     QEglFSWindow *createWindow(QWindow *window) const override;
 
+    void presentBuffer(QPlatformSurface *surface) override;
+
     EGLDeviceEXT eglDevice() const { return m_egl_device; }
 
 protected:
diff --git a/src/plugins/platforms/mirclient/mirclient.json b/src/plugins/platforms/mirclient/mirclient.json
deleted file mode 100644
index c31558a2f1..0000000000
--- a/src/plugins/platforms/mirclient/mirclient.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "Keys": [ "mirclient" ]
-}
diff --git a/src/plugins/platforms/mirclient/mirclient.pro b/src/plugins/platforms/mirclient/mirclient.pro
deleted file mode 100644
index d9eb069200..0000000000
--- a/src/plugins/platforms/mirclient/mirclient.pro
+++ /dev/null
@@ -1,61 +0,0 @@
-TARGET = qmirclient
-
-QT += \
-    core-private gui-private dbus \
-    theme_support-private eventdispatcher_support-private \
-    fontdatabase_support-private egl_support-private
-
-qtHaveModule(linuxaccessibility_support-private): \
-    QT += linuxaccessibility_support-private
-
-DEFINES += MESA_EGL_NO_X11_HEADERS
-# CONFIG += c++11 # only enables C++0x
-QMAKE_CXXFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11 -Werror -Wall
-QMAKE_LFLAGS += -std=c++11 -Wl,-no-undefined
-
-QMAKE_USE_PRIVATE += mirclient
-
-SOURCES = \
-    qmirclientappstatecontroller.cpp \
-    qmirclientbackingstore.cpp \
-    qmirclientclipboard.cpp \
-    qmirclientcursor.cpp \
-    qmirclientdebugextension.cpp \
-    qmirclientdesktopwindow.cpp \
-    qmirclientglcontext.cpp \
-    qmirclientinput.cpp \
-    qmirclientintegration.cpp \
-    qmirclientnativeinterface.cpp \
-    qmirclientplatformservices.cpp \
-    qmirclientplugin.cpp \
-    qmirclientscreen.cpp \
-    qmirclientscreenobserver.cpp \
-    qmirclienttheme.cpp \
-    qmirclientwindow.cpp
-
-HEADERS = \
-    qmirclientappstatecontroller.h \
-    qmirclientbackingstore.h \
-    qmirclientclipboard.h \
-    qmirclientcursor.h \
-    qmirclientdebugextension.h \
-    qmirclientdesktopwindow.h \
-    qmirclientglcontext.h \
-    qmirclientinput.h \
-    qmirclientintegration.h \
-    qmirclientlogging.h \
-    qmirclientnativeinterface.h \
-    qmirclientorientationchangeevent_p.h \
-    qmirclientplatformservices.h \
-    qmirclientplugin.h \
-    qmirclientscreen.h \
-    qmirclientscreenobserver.h \
-    qmirclienttheme.h \
-    qmirclientwindow.h
-
-QMAKE_USE_PRIVATE += xkbcommon
-
-PLUGIN_TYPE = platforms
-PLUGIN_CLASS_NAME = MirServerIntegrationPlugin
-!equals(TARGET, $$QT_DEFAULT_QPA_PLUGIN): PLUGIN_EXTENDS = -
-load(qt_plugin)
diff --git a/src/plugins/platforms/mirclient/qmirclientappstatecontroller.cpp b/src/plugins/platforms/mirclient/qmirclientappstatecontroller.cpp
deleted file mode 100644
index 69fc9b7aa7..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientappstatecontroller.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientappstatecontroller.h"
-
-#include <qpa/qwindowsysteminterface.h>
-
-/*
- * QMirClientAppStateController - updates Qt's QApplication::applicationState property.
- *
- * Tries to avoid active-inactive-active invocations using a timer. The rapid state
- * change can confuse some applications.
- */
-
-QMirClientAppStateController::QMirClientAppStateController()
-    : m_suspended(false)
-    , m_lastActive(true)
-{
-    m_inactiveTimer.setSingleShot(true);
-    m_inactiveTimer.setInterval(10);
-    QObject::connect(&m_inactiveTimer, &QTimer::timeout, []()
-    {
-        QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationInactive);
-    });
-}
-
-void QMirClientAppStateController::setSuspended()
-{
-    m_inactiveTimer.stop();
-    if (!m_suspended) {
-        m_suspended = true;
-
-        QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationSuspended);
-    }
-}
-
-void QMirClientAppStateController::setResumed()
-{
-    m_inactiveTimer.stop();
-    if (m_suspended) {
-        m_suspended = false;
-
-        if (m_lastActive) {
-            QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationActive);
-        } else {
-            QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationInactive);
-        }
-    }
-}
-
-void QMirClientAppStateController::setWindowFocused(bool focused)
-{
-    if (m_suspended) {
-        return;
-    }
-
-    if (focused) {
-        m_inactiveTimer.stop();
-        QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationActive);
-    } else {
-        m_inactiveTimer.start();
-    }
-
-    m_lastActive = focused;
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp b/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp
deleted file mode 100644
index 51363619d9..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientbackingstore.h"
-#include "qmirclientlogging.h"
-#include <QtGui/QOpenGLContext>
-#include <QtGui/QOpenGLTexture>
-#include <QtGui/QMatrix4x4>
-#include <QtGui/qopengltextureblitter.h>
-#include <QtGui/qopenglfunctions.h>
-
-QMirClientBackingStore::QMirClientBackingStore(QWindow* window)
-    : QPlatformBackingStore(window)
-    , mContext(new QOpenGLContext)
-    , mTexture(new QOpenGLTexture(QOpenGLTexture::Target2D))
-    , mBlitter(new QOpenGLTextureBlitter)
-{
-    mContext->setFormat(window->requestedFormat());
-    mContext->setScreen(window->screen());
-    mContext->create();
-
-    window->setSurfaceType(QSurface::OpenGLSurface);
-}
-
-QMirClientBackingStore::~QMirClientBackingStore()
-{
-    mContext->makeCurrent(window()); // needed as QOpenGLTexture destructor assumes current context
-}
-
-void QMirClientBackingStore::flush(QWindow* window, const QRegion& region, const QPoint& offset)
-{
-    Q_UNUSED(region);
-    Q_UNUSED(offset);
-    mContext->makeCurrent(window);
-    glViewport(0, 0, window->width(), window->height());
-
-    updateTexture();
-
-    if (!mBlitter->isCreated())
-        mBlitter->create();
-
-    mBlitter->bind();
-    mBlitter->blit(mTexture->textureId(), QMatrix4x4(), QOpenGLTextureBlitter::OriginTopLeft);
-    mBlitter->release();
-
-    mContext->swapBuffers(window);
-}
-
-void QMirClientBackingStore::updateTexture()
-{
-    if (mDirty.isNull())
-        return;
-
-    if (!mTexture->isCreated()) {
-        mTexture->setMinificationFilter(QOpenGLTexture::Nearest);
-        mTexture->setMagnificationFilter(QOpenGLTexture::Nearest);
-        mTexture->setWrapMode(QOpenGLTexture::ClampToEdge);
-        mTexture->setData(mImage, QOpenGLTexture::DontGenerateMipMaps);
-        mTexture->create();
-    }
-    mTexture->bind();
-
-    QRegion fixed;
-    QRect imageRect = mImage.rect();
-
-    for (const QRect &rect : mDirty) {
-        // intersect with image rect to be sure
-        QRect r = imageRect & rect;
-
-        // if the rect is wide enough it is cheaper to just extend it instead of doing an image copy
-        if (r.width() >= imageRect.width() / 2) {
-            r.setX(0);
-            r.setWidth(imageRect.width());
-        }
-
-        fixed |= r;
-    }
-
-    for (const QRect &rect : fixed) {
-        // if the sub-rect is full-width we can pass the image data directly to
-        // OpenGL instead of copying, since there is no gap between scanlines
-        if (rect.width() == imageRect.width()) {
-            glTexSubImage2D(GL_TEXTURE_2D, 0, 0, rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE,
-                            mImage.constScanLine(rect.y()));
-        } else {
-            glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE,
-                            mImage.copy(rect).constBits());
-        }
-    }
-    /* End of code taken from QEGLPlatformBackingStore */
-
-    mDirty = QRegion();
-}
-
-
-void QMirClientBackingStore::beginPaint(const QRegion& region)
-{
-    mDirty |= region;
-}
-
-void QMirClientBackingStore::resize(const QSize& size, const QRegion& /*staticContents*/)
-{
-    mImage = QImage(size, QImage::Format_RGBA8888);
-
-    mContext->makeCurrent(window());
-
-    if (mTexture->isCreated())
-        mTexture->destroy();
-}
-
-QPaintDevice* QMirClientBackingStore::paintDevice()
-{
-    return &mImage;
-}
-
-QImage QMirClientBackingStore::toImage() const
-{
-    // used by QPlatformBackingStore::composeAndFlush
-    return mImage;
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientclipboard.cpp b/src/plugins/platforms/mirclient/qmirclientclipboard.cpp
deleted file mode 100644
index b9fc9b3b42..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientclipboard.cpp
+++ /dev/null
@@ -1,181 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientclipboard.h"
-#include "qmirclientlogging.h"
-#include "qmirclientwindow.h"
-
-#include <QDBusPendingCallWatcher>
-#include <QGuiApplication>
-#include <QSignalBlocker>
-#include <QtCore/QMimeData>
-#include <QtCore/QStringList>
-
-// content-hub
-#include <com/ubuntu/content/hub.h>
-
-// get this cumbersome nested namespace out of the way
-using namespace com::ubuntu::content;
-
-QMirClientClipboard::QMirClientClipboard()
-    : mMimeData(new QMimeData)
-    , mContentHub(Hub::Client::instance())
-{
-    connect(mContentHub, &Hub::pasteboardChanged, this, [this]() {
-        if (mClipboardState == QMirClientClipboard::SyncedClipboard) {
-            mClipboardState = QMirClientClipboard::OutdatedClipboard;
-            emitChanged(QClipboard::Clipboard);
-        }
-    });
-
-    connect(qGuiApp, &QGuiApplication::applicationStateChanged,
-        this, &QMirClientClipboard::onApplicationStateChanged);
-
-    requestMimeData();
-}
-
-QMirClientClipboard::~QMirClientClipboard()
-{
-    delete mMimeData;
-}
-
-QMimeData* QMirClientClipboard::mimeData(QClipboard::Mode mode)
-{
-    if (mode != QClipboard::Clipboard)
-        return nullptr;
-
-    // Blocks dataChanged() signal from being emitted. Makes no sense to emit it from
-    // inside the data getter.
-    const QSignalBlocker blocker(this);
-
-    if (mClipboardState == OutdatedClipboard) {
-        updateMimeData();
-    } else if (mClipboardState == SyncingClipboard) {
-        mPasteReply->waitForFinished();
-    }
-
-    return mMimeData;
-}
-
-void QMirClientClipboard::setMimeData(QMimeData* mimeData, QClipboard::Mode mode)
-{
-    QWindow *focusWindow = QGuiApplication::focusWindow();
-    if (focusWindow && mode == QClipboard::Clipboard && mimeData != nullptr) {
-        QString surfaceId = static_cast<QMirClientWindow*>(focusWindow->handle())->persistentSurfaceId();
-
-        QDBusPendingCall reply = mContentHub->createPaste(surfaceId, *mimeData);
-
-        // Don't care whether it succeeded
-        QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
-        connect(watcher, &QDBusPendingCallWatcher::finished,
-                watcher, &QObject::deleteLater);
-
-        mMimeData = mimeData;
-        mClipboardState = SyncedClipboard;
-        emitChanged(QClipboard::Clipboard);
-    }
-}
-
-bool QMirClientClipboard::supportsMode(QClipboard::Mode mode) const
-{
-    return mode == QClipboard::Clipboard;
-}
-
-bool QMirClientClipboard::ownsMode(QClipboard::Mode mode) const
-{
-    Q_UNUSED(mode);
-    return false;
-}
-
-void QMirClientClipboard::onApplicationStateChanged(Qt::ApplicationState state)
-{
-    if (state == Qt::ApplicationActive) {
-        // Only focused or active applications might be allowed to paste, so we probably
-        // missed changes in the clipboard while we were hidden, inactive or, more importantly,
-        // suspended.
-        requestMimeData();
-    }
-}
-
-void QMirClientClipboard::updateMimeData()
-{
-    if (qGuiApp->applicationState() != Qt::ApplicationActive) {
-        // Don't even bother asking as content-hub would probably ignore our request (and should).
-        return;
-    }
-
-    delete mMimeData;
-
-    QWindow *focusWindow = QGuiApplication::focusWindow();
-    if (focusWindow) {
-        QString surfaceId = static_cast<QMirClientWindow*>(focusWindow->handle())->persistentSurfaceId();
-        mMimeData = mContentHub->latestPaste(surfaceId);
-        mClipboardState = SyncedClipboard;
-        emitChanged(QClipboard::Clipboard);
-    }
-}
-
-void QMirClientClipboard::requestMimeData()
-{
-    if (qGuiApp->applicationState() != Qt::ApplicationActive) {
-        // Don't even bother asking as content-hub would probably ignore our request (and should).
-        return;
-    }
-
-    QWindow *focusWindow = QGuiApplication::focusWindow();
-    if (!focusWindow) {
-        return;
-    }
-
-    QString surfaceId = static_cast<QMirClientWindow*>(focusWindow->handle())->persistentSurfaceId();
-    QDBusPendingCall reply = mContentHub->requestLatestPaste(surfaceId);
-    mClipboardState = SyncingClipboard;
-
-    mPasteReply = new QDBusPendingCallWatcher(reply, this);
-    connect(mPasteReply, &QDBusPendingCallWatcher::finished,
-            this, [this]() {
-        delete mMimeData;
-        mMimeData = mContentHub->paste(*mPasteReply);
-        mClipboardState = SyncedClipboard;
-        mPasteReply->deleteLater();
-        mPasteReply = nullptr;
-        emitChanged(QClipboard::Clipboard);
-    });
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientclipboard.h b/src/plugins/platforms/mirclient/qmirclientclipboard.h
deleted file mode 100644
index 09e9bcdf38..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientclipboard.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTCLIPBOARD_H
-#define QMIRCLIENTCLIPBOARD_H
-
-#include <qpa/qplatformclipboard.h>
-
-#include <QMimeData>
-#include <QPointer>
-
-namespace com {
-    namespace ubuntu {
-        namespace content {
-            class Hub;
-        }
-    }
-}
-
-class QDBusPendingCallWatcher;
-
-class QMirClientClipboard : public QObject, public QPlatformClipboard
-{
-    Q_OBJECT
-public:
-    QMirClientClipboard();
-    virtual ~QMirClientClipboard();
-
-    // QPlatformClipboard methods.
-    QMimeData* mimeData(QClipboard::Mode mode = QClipboard::Clipboard) override;
-    void setMimeData(QMimeData* data, QClipboard::Mode mode = QClipboard::Clipboard) override;
-    bool supportsMode(QClipboard::Mode mode) const override;
-    bool ownsMode(QClipboard::Mode mode) const override;
-
-private Q_SLOTS:
-    void onApplicationStateChanged(Qt::ApplicationState state);
-
-private:
-    void updateMimeData();
-    void requestMimeData();
-
-    QMimeData *mMimeData;
-
-    enum {
-        OutdatedClipboard, // Our mimeData is outdated, need to fetch latest from ContentHub
-        SyncingClipboard, // Our mimeData is outdated and we are waiting for ContentHub to reply with the latest paste
-        SyncedClipboard // Our mimeData is in sync with what ContentHub has
-    } mClipboardState{OutdatedClipboard};
-
-    com::ubuntu::content::Hub *mContentHub;
-
-    QDBusPendingCallWatcher *mPasteReply{nullptr};
-};
-
-#endif // QMIRCLIENTCLIPBOARD_H
diff --git a/src/plugins/platforms/mirclient/qmirclientcursor.cpp b/src/plugins/platforms/mirclient/qmirclientcursor.cpp
deleted file mode 100644
index 812cde95c6..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientcursor.cpp
+++ /dev/null
@@ -1,209 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientcursor.h"
-
-#include "qmirclientlogging.h"
-#include "qmirclientwindow.h"
-
-#include <mir_toolkit/mir_client_library.h>
-
-Q_LOGGING_CATEGORY(mirclientCursor, "qt.qpa.mirclient.cursor", QtWarningMsg)
-
-QMirClientCursor::QMirClientCursor(MirConnection *connection)
-    : mConnection(connection)
-{
-    /*
-     * TODO: Add the missing cursors to Mir (LP: #1388987)
-     *       Those are the ones without a mir_ prefix, which are X11 cursors
-     *       and won't be understood by any shell other than Unity8.
-     */
-    mShapeToCursorName[Qt::ArrowCursor] = mir_arrow_cursor_name;
-    mShapeToCursorName[Qt::UpArrowCursor] = "up_arrow";
-    mShapeToCursorName[Qt::CrossCursor] = mir_crosshair_cursor_name;
-    mShapeToCursorName[Qt::WaitCursor] = mir_busy_cursor_name;
-    mShapeToCursorName[Qt::IBeamCursor] = mir_caret_cursor_name;
-    mShapeToCursorName[Qt::SizeVerCursor] = mir_vertical_resize_cursor_name;
-    mShapeToCursorName[Qt::SizeHorCursor] = mir_horizontal_resize_cursor_name;
-    mShapeToCursorName[Qt::SizeBDiagCursor] = mir_diagonal_resize_bottom_to_top_cursor_name;
-    mShapeToCursorName[Qt::SizeFDiagCursor] = mir_diagonal_resize_top_to_bottom_cursor_name;
-    mShapeToCursorName[Qt::SizeAllCursor] = mir_omnidirectional_resize_cursor_name;
-    mShapeToCursorName[Qt::BlankCursor] = mir_disabled_cursor_name;
-    mShapeToCursorName[Qt::SplitVCursor] = mir_vsplit_resize_cursor_name;
-    mShapeToCursorName[Qt::SplitHCursor] = mir_hsplit_resize_cursor_name;
-    mShapeToCursorName[Qt::PointingHandCursor] = mir_pointing_hand_cursor_name;
-    mShapeToCursorName[Qt::ForbiddenCursor] = "forbidden";
-    mShapeToCursorName[Qt::WhatsThisCursor] = "whats_this";
-    mShapeToCursorName[Qt::BusyCursor] = "left_ptr_watch";
-    mShapeToCursorName[Qt::OpenHandCursor] = mir_open_hand_cursor_name;
-    mShapeToCursorName[Qt::ClosedHandCursor] = mir_closed_hand_cursor_name;
-    mShapeToCursorName[Qt::DragCopyCursor] = "dnd-copy";
-    mShapeToCursorName[Qt::DragMoveCursor] = "dnd-move";
-    mShapeToCursorName[Qt::DragLinkCursor] = "dnd-link";
-}
-
-namespace {
-const char *qtCursorShapeToStr(Qt::CursorShape shape)
-{
-    switch (shape) {
-    case Qt::ArrowCursor:
-        return "Arrow";
-    case Qt::UpArrowCursor:
-        return "UpArrow";
-    case Qt::CrossCursor:
-        return "Cross";
-    case Qt::WaitCursor:
-        return "Wait";
-    case Qt::IBeamCursor:
-        return "IBeam";
-    case Qt::SizeVerCursor:
-        return "SizeVer";
-    case Qt::SizeHorCursor:
-        return "SizeHor";
-    case Qt::SizeBDiagCursor:
-        return "SizeBDiag";
-    case Qt::SizeFDiagCursor:
-        return "SizeFDiag";
-    case Qt::SizeAllCursor:
-        return "SizeAll";
-    case Qt::BlankCursor:
-        return "Blank";
-    case Qt::SplitVCursor:
-        return "SplitV";
-    case Qt::SplitHCursor:
-        return "SplitH";
-    case Qt::PointingHandCursor:
-        return "PointingHand";
-    case Qt::ForbiddenCursor:
-        return "Forbidden";
-    case Qt::WhatsThisCursor:
-        return "WhatsThis";
-    case Qt::BusyCursor:
-        return "Busy";
-    case Qt::OpenHandCursor:
-        return "OpenHand";
-    case Qt::ClosedHandCursor:
-        return "ClosedHand";
-    case Qt::DragCopyCursor:
-        return "DragCopy";
-    case Qt::DragMoveCursor:
-        return "DragMove";
-    case Qt::DragLinkCursor:
-        return "DragLink";
-    case Qt::BitmapCursor:
-        return "Bitmap";
-    default:
-        return "???";
-    }
-}
-} // anonymous namespace
-
-void QMirClientCursor::changeCursor(QCursor *windowCursor, QWindow *window)
-{
-    if (!window) {
-        return;
-    }
-
-    MirSurface *surface = static_cast<QMirClientWindow*>(window->handle())->mirSurface();
-
-    if (!surface) {
-        return;
-    }
-
-
-    if (windowCursor) {
-        qCDebug(mirclientCursor, "changeCursor shape=%s, window=%p", qtCursorShapeToStr(windowCursor->shape()), window);
-        if (!windowCursor->pixmap().isNull()) {
-            configureMirCursorWithPixmapQCursor(surface, *windowCursor);
-        } else if (windowCursor->shape() == Qt::BitmapCursor) {
-            // TODO: Implement bitmap cursor support
-            applyDefaultCursorConfiguration(surface);
-        } else {
-            const auto &cursorName = mShapeToCursorName.value(windowCursor->shape(), QByteArray("left_ptr"));
-            auto cursorConfiguration = mir_cursor_configuration_from_name(cursorName.data());
-            mir_surface_configure_cursor(surface, cursorConfiguration);
-            mir_cursor_configuration_destroy(cursorConfiguration);
-        }
-    } else {
-        applyDefaultCursorConfiguration(surface);
-    }
-
-}
-
-void QMirClientCursor::configureMirCursorWithPixmapQCursor(MirSurface *surface, QCursor &cursor)
-{
-    QImage image = cursor.pixmap().toImage();
-
-    if (image.format() != QImage::Format_ARGB32) {
-        image = image.convertToFormat(QImage::Format_ARGB32);
-    }
-
-    MirBufferStream *bufferStream = mir_connection_create_buffer_stream_sync(mConnection,
-            image.width(), image.height(), mir_pixel_format_argb_8888, mir_buffer_usage_software);
-
-    {
-        MirGraphicsRegion region;
-        mir_buffer_stream_get_graphics_region(bufferStream, &region);
-
-        char *regionLine = region.vaddr;
-        Q_ASSERT(image.bytesPerLine() <= region.stride);
-        for (int i = 0; i < image.height(); ++i) {
-            memcpy(regionLine, image.scanLine(i), image.bytesPerLine());
-            regionLine += region.stride;
-        }
-    }
-
-    mir_buffer_stream_swap_buffers_sync(bufferStream);
-
-    {
-        auto configuration = mir_cursor_configuration_from_buffer_stream(bufferStream, cursor.hotSpot().x(), cursor.hotSpot().y());
-        mir_surface_configure_cursor(surface, configuration);
-        mir_cursor_configuration_destroy(configuration);
-    }
-
-    mir_buffer_stream_release_sync(bufferStream);
-}
-
-void QMirClientCursor::applyDefaultCursorConfiguration(MirSurface *surface)
-{
-    auto cursorConfiguration = mir_cursor_configuration_from_name("left_ptr");
-    mir_surface_configure_cursor(surface, cursorConfiguration);
-    mir_cursor_configuration_destroy(cursorConfiguration);
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientcursor.h b/src/plugins/platforms/mirclient/qmirclientcursor.h
deleted file mode 100644
index c5de23b272..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientcursor.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTCURSOR_H
-#define QMIRCLIENTCURSOR_H
-
-#include <qpa/qplatformcursor.h>
-
-#include <QMap>
-#include <QByteArray>
-
-struct MirConnection;
-struct MirSurface;
-
-class QMirClientCursor : public QPlatformCursor
-{
-public:
-    QMirClientCursor(MirConnection *connection);
-    void changeCursor(QCursor *windowCursor, QWindow *window) override;
-private:
-    void configureMirCursorWithPixmapQCursor(MirSurface *surface, QCursor &cursor);
-    void applyDefaultCursorConfiguration(MirSurface *surface);
-    QMap<int, QByteArray> mShapeToCursorName;
-    MirConnection *mConnection;
-};
-
-#endif // QMIRCLIENTCURSOR_H
diff --git a/src/plugins/platforms/mirclient/qmirclientdebugextension.cpp b/src/plugins/platforms/mirclient/qmirclientdebugextension.cpp
deleted file mode 100644
index 9aa934083d..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientdebugextension.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientdebugextension.h"
-
-#include "qmirclientlogging.h"
-
-// mir client debug
-#include <mir_toolkit/debug/surface.h>
-
-Q_LOGGING_CATEGORY(mirclientDebug, "qt.qpa.mirclient.debug")
-
-QMirClientDebugExtension::QMirClientDebugExtension()
-    : m_mirclientDebug(QStringLiteral("mirclient-debug-extension"), 1)
-    , m_mapper(nullptr)
-{
-    qCDebug(mirclientDebug) << "NOTICE: Loading mirclient-debug-extension";
-    m_mapper = (MapperPrototype) m_mirclientDebug.resolve("mir_debug_surface_coords_to_screen");
-
-    if (!m_mirclientDebug.isLoaded()) {
-        qCWarning(mirclientDebug) << "ERROR: mirclient-debug-extension failed to load:"
-                                  << m_mirclientDebug.errorString();
-    } else if (!m_mapper) {
-        qCWarning(mirclientDebug) << "ERROR: unable to find required symbols in mirclient-debug-extension:"
-                                  << m_mirclientDebug.errorString();
-    }
-}
-
-QPoint QMirClientDebugExtension::mapSurfacePointToScreen(MirSurface *surface, const QPoint &point)
-{
-    if (!m_mapper) {
-        return point;
-    }
-
-    QPoint mappedPoint;
-    bool status = m_mapper(surface, point.x(), point.y(), &mappedPoint.rx(), &mappedPoint.ry());
-    if (status) {
-        return mappedPoint;
-    } else {
-        return point;
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientdesktopwindow.h b/src/plugins/platforms/mirclient/qmirclientdesktopwindow.h
deleted file mode 100644
index 3ba54db826..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientdesktopwindow.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTDESKTOPWINDOW_H
-#define QMIRCLIENTDESKTOPWINDOW_H
-
-#include <qpa/qplatformwindow.h>
-
-// TODO Implement it. For now it's just an empty, dummy class.
-class QMirClientDesktopWindow : public QPlatformWindow
-{
-public:
-    QMirClientDesktopWindow(QWindow*);
-};
-
-#endif // QMIRCLIENTDESKTOPWINDOW_H
diff --git a/src/plugins/platforms/mirclient/qmirclientglcontext.cpp b/src/plugins/platforms/mirclient/qmirclientglcontext.cpp
deleted file mode 100644
index fc7d90d5ec..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientglcontext.cpp
+++ /dev/null
@@ -1,132 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientglcontext.h"
-#include "qmirclientlogging.h"
-#include "qmirclientwindow.h"
-
-#include <QOpenGLFramebufferObject>
-#include <QtEglSupport/private/qeglconvenience_p.h>
-#include <QtEglSupport/private/qeglpbuffer_p.h>
-#include <QtGui/private/qopenglcontext_p.h>
-
-Q_LOGGING_CATEGORY(mirclientGraphics, "qt.qpa.mirclient.graphics", QtWarningMsg)
-
-namespace {
-
-void printEglConfig(EGLDisplay display, EGLConfig config)
-{
-    Q_ASSERT(display != EGL_NO_DISPLAY);
-    Q_ASSERT(config != nullptr);
-
-    const char *string = eglQueryString(display, EGL_VENDOR);
-    qCDebug(mirclientGraphics, "EGL vendor: %s", string);
-
-    string = eglQueryString(display, EGL_VERSION);
-    qCDebug(mirclientGraphics, "EGL version: %s", string);
-
-    string = eglQueryString(display, EGL_EXTENSIONS);
-    qCDebug(mirclientGraphics, "EGL extensions: %s", string);
-
-    qCDebug(mirclientGraphics, "EGL configuration attributes:");
-    q_printEglConfig(display, config);
-}
-
-} // anonymous namespace
-
-QMirClientOpenGLContext::QMirClientOpenGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share,
-                                         EGLDisplay display)
-    : QEGLPlatformContext(format, share, display, 0)
-{
-    if (mirclientGraphics().isDebugEnabled()) {
-        printEglConfig(display, eglConfig());
-    }
-}
-
-static bool needsFBOReadBackWorkaround()
-{
-    static bool set = false;
-    static bool needsWorkaround = false;
-
-    if (Q_UNLIKELY(!set)) {
-        const char *rendererString = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
-        needsWorkaround = qstrncmp(rendererString, "Mali-400", 8) == 0
-                          || qstrncmp(rendererString, "Mali-T7", 7) == 0
-                          || qstrncmp(rendererString, "PowerVR Rogue G6200", 19) == 0;
-        set = true;
-    }
-
-    return needsWorkaround;
-}
-
-bool QMirClientOpenGLContext::makeCurrent(QPlatformSurface* surface)
-{
-    const bool ret = QEGLPlatformContext::makeCurrent(surface);
-
-    if (Q_LIKELY(ret)) {
-        QOpenGLContextPrivate *ctx_d = QOpenGLContextPrivate::get(context());
-        if (!ctx_d->workaround_brokenFBOReadBack && needsFBOReadBackWorkaround()) {
-            ctx_d->workaround_brokenFBOReadBack = true;
-        }
-    }
-    return ret;
-}
-
-// Following method used internally in the base class QEGLPlatformContext to access
-// the egl surface of a QPlatformSurface/QMirClientWindow
-EGLSurface QMirClientOpenGLContext::eglSurfaceForPlatformSurface(QPlatformSurface *surface)
-{
-    if (surface->surface()->surfaceClass() == QSurface::Window) {
-        return static_cast<QMirClientWindow *>(surface)->eglSurface();
-    } else {
-        return static_cast<QEGLPbuffer *>(surface)->pbuffer();
-    }
-}
-
-void QMirClientOpenGLContext::swapBuffers(QPlatformSurface* surface)
-{
-    QEGLPlatformContext::swapBuffers(surface);
-
-    if (surface->surface()->surfaceClass() == QSurface::Window) {
-        // notify window on swap completion
-        auto platformWindow = static_cast<QMirClientWindow *>(surface);
-        platformWindow->onSwapBuffersDone();
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientglcontext.h b/src/plugins/platforms/mirclient/qmirclientglcontext.h
deleted file mode 100644
index 92331a6fb1..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientglcontext.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTGLCONTEXT_H
-#define QMIRCLIENTGLCONTEXT_H
-
-#include <qpa/qplatformopenglcontext.h>
-#include <QtEglSupport/private/qeglplatformcontext_p.h>
-
-#include <EGL/egl.h>
-
-class QMirClientOpenGLContext : public QEGLPlatformContext
-{
-public:
-    QMirClientOpenGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share,
-                        EGLDisplay display);
-
-    // QEGLPlatformContext methods.
-    void swapBuffers(QPlatformSurface *surface) final;
-    bool makeCurrent(QPlatformSurface *surface) final;
-
-protected:
-    EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface *surface) final;
-};
-
-#endif // QMIRCLIENTGLCONTEXT_H
diff --git a/src/plugins/platforms/mirclient/qmirclientinput.cpp b/src/plugins/platforms/mirclient/qmirclientinput.cpp
deleted file mode 100644
index e5319b0435..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientinput.cpp
+++ /dev/null
@@ -1,708 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-// Local
-#include "qmirclientinput.h"
-#include "qmirclientintegration.h"
-#include "qmirclientnativeinterface.h"
-#include "qmirclientscreen.h"
-#include "qmirclientwindow.h"
-#include "qmirclientlogging.h"
-#include "qmirclientorientationchangeevent_p.h"
-
-// Qt
-#include <QtCore/QThread>
-#include <QtCore/qglobal.h>
-#include <QtCore/QCoreApplication>
-#include <QtGui/private/qguiapplication_p.h>
-#include <qpa/qplatforminputcontext.h>
-#include <qpa/qwindowsysteminterface.h>
-#include <QTextCodec>
-
-#include <xkbcommon/xkbcommon.h>
-#include <xkbcommon/xkbcommon-keysyms.h>
-
-#include <mir_toolkit/mir_client_library.h>
-
-Q_LOGGING_CATEGORY(mirclientInput, "qt.qpa.mirclient.input", QtWarningMsg)
-
-namespace
-{
-
-// XKB Keysyms which do not map directly to Qt types (i.e. Unicode points)
-static const uint32_t KeyTable[] = {
-    XKB_KEY_Escape,                  Qt::Key_Escape,
-    XKB_KEY_Tab,                     Qt::Key_Tab,
-    XKB_KEY_ISO_Left_Tab,            Qt::Key_Backtab,
-    XKB_KEY_BackSpace,               Qt::Key_Backspace,
-    XKB_KEY_Return,                  Qt::Key_Return,
-    XKB_KEY_Insert,                  Qt::Key_Insert,
-    XKB_KEY_Delete,                  Qt::Key_Delete,
-    XKB_KEY_Clear,                   Qt::Key_Delete,
-    XKB_KEY_Pause,                   Qt::Key_Pause,
-    XKB_KEY_Print,                   Qt::Key_Print,
-
-    XKB_KEY_Home,                    Qt::Key_Home,
-    XKB_KEY_End,                     Qt::Key_End,
-    XKB_KEY_Left,                    Qt::Key_Left,
-    XKB_KEY_Up,                      Qt::Key_Up,
-    XKB_KEY_Right,                   Qt::Key_Right,
-    XKB_KEY_Down,                    Qt::Key_Down,
-    XKB_KEY_Prior,                   Qt::Key_PageUp,
-    XKB_KEY_Next,                    Qt::Key_PageDown,
-
-    XKB_KEY_Shift_L,                 Qt::Key_Shift,
-    XKB_KEY_Shift_R,                 Qt::Key_Shift,
-    XKB_KEY_Shift_Lock,              Qt::Key_Shift,
-    XKB_KEY_Control_L,               Qt::Key_Control,
-    XKB_KEY_Control_R,               Qt::Key_Control,
-    XKB_KEY_Meta_L,                  Qt::Key_Meta,
-    XKB_KEY_Meta_R,                  Qt::Key_Meta,
-    XKB_KEY_Alt_L,                   Qt::Key_Alt,
-    XKB_KEY_Alt_R,                   Qt::Key_Alt,
-    XKB_KEY_Caps_Lock,               Qt::Key_CapsLock,
-    XKB_KEY_Num_Lock,                Qt::Key_NumLock,
-    XKB_KEY_Scroll_Lock,             Qt::Key_ScrollLock,
-    XKB_KEY_Super_L,                 Qt::Key_Super_L,
-    XKB_KEY_Super_R,                 Qt::Key_Super_R,
-    XKB_KEY_Menu,                    Qt::Key_Menu,
-    XKB_KEY_Hyper_L,                 Qt::Key_Hyper_L,
-    XKB_KEY_Hyper_R,                 Qt::Key_Hyper_R,
-    XKB_KEY_Help,                    Qt::Key_Help,
-
-    XKB_KEY_KP_Space,                Qt::Key_Space,
-    XKB_KEY_KP_Tab,                  Qt::Key_Tab,
-    XKB_KEY_KP_Enter,                Qt::Key_Enter,
-    XKB_KEY_KP_Home,                 Qt::Key_Home,
-    XKB_KEY_KP_Left,                 Qt::Key_Left,
-    XKB_KEY_KP_Up,                   Qt::Key_Up,
-    XKB_KEY_KP_Right,                Qt::Key_Right,
-    XKB_KEY_KP_Down,                 Qt::Key_Down,
-    XKB_KEY_KP_Prior,                Qt::Key_PageUp,
-    XKB_KEY_KP_Next,                 Qt::Key_PageDown,
-    XKB_KEY_KP_End,                  Qt::Key_End,
-    XKB_KEY_KP_Begin,                Qt::Key_Clear,
-    XKB_KEY_KP_Insert,               Qt::Key_Insert,
-    XKB_KEY_KP_Delete,               Qt::Key_Delete,
-    XKB_KEY_KP_Equal,                Qt::Key_Equal,
-    XKB_KEY_KP_Multiply,             Qt::Key_Asterisk,
-    XKB_KEY_KP_Add,                  Qt::Key_Plus,
-    XKB_KEY_KP_Separator,            Qt::Key_Comma,
-    XKB_KEY_KP_Subtract,             Qt::Key_Minus,
-    XKB_KEY_KP_Decimal,              Qt::Key_Period,
-    XKB_KEY_KP_Divide,               Qt::Key_Slash,
-
-    XKB_KEY_ISO_Level3_Shift,        Qt::Key_AltGr,
-    XKB_KEY_Multi_key,               Qt::Key_Multi_key,
-    XKB_KEY_Codeinput,               Qt::Key_Codeinput,
-    XKB_KEY_SingleCandidate,         Qt::Key_SingleCandidate,
-    XKB_KEY_MultipleCandidate,       Qt::Key_MultipleCandidate,
-    XKB_KEY_PreviousCandidate,       Qt::Key_PreviousCandidate,
-
-    // dead keys
-    XKB_KEY_dead_grave,              Qt::Key_Dead_Grave,
-    XKB_KEY_dead_acute,              Qt::Key_Dead_Acute,
-    XKB_KEY_dead_circumflex,         Qt::Key_Dead_Circumflex,
-    XKB_KEY_dead_tilde,              Qt::Key_Dead_Tilde,
-    XKB_KEY_dead_macron,             Qt::Key_Dead_Macron,
-    XKB_KEY_dead_breve,              Qt::Key_Dead_Breve,
-    XKB_KEY_dead_abovedot,           Qt::Key_Dead_Abovedot,
-    XKB_KEY_dead_diaeresis,          Qt::Key_Dead_Diaeresis,
-    XKB_KEY_dead_abovering,          Qt::Key_Dead_Abovering,
-    XKB_KEY_dead_doubleacute,        Qt::Key_Dead_Doubleacute,
-    XKB_KEY_dead_caron,              Qt::Key_Dead_Caron,
-    XKB_KEY_dead_cedilla,            Qt::Key_Dead_Cedilla,
-    XKB_KEY_dead_ogonek,             Qt::Key_Dead_Ogonek,
-    XKB_KEY_dead_iota,               Qt::Key_Dead_Iota,
-    XKB_KEY_dead_voiced_sound,       Qt::Key_Dead_Voiced_Sound,
-    XKB_KEY_dead_semivoiced_sound,   Qt::Key_Dead_Semivoiced_Sound,
-    XKB_KEY_dead_belowdot,           Qt::Key_Dead_Belowdot,
-    XKB_KEY_dead_hook,               Qt::Key_Dead_Hook,
-    XKB_KEY_dead_horn,               Qt::Key_Dead_Horn,
-    XKB_KEY_dead_stroke,             Qt::Key_Dead_Stroke,
-    XKB_KEY_dead_abovecomma,         Qt::Key_Dead_Abovecomma,
-    XKB_KEY_dead_abovereversedcomma, Qt::Key_Dead_Abovereversedcomma,
-    XKB_KEY_dead_doublegrave,        Qt::Key_Dead_Doublegrave,
-    XKB_KEY_dead_belowring,          Qt::Key_Dead_Belowring,
-    XKB_KEY_dead_belowmacron,        Qt::Key_Dead_Belowmacron,
-    XKB_KEY_dead_belowcircumflex,    Qt::Key_Dead_Belowcircumflex,
-    XKB_KEY_dead_belowtilde,         Qt::Key_Dead_Belowtilde,
-    XKB_KEY_dead_belowbreve,         Qt::Key_Dead_Belowbreve,
-    XKB_KEY_dead_belowdiaeresis,     Qt::Key_Dead_Belowdiaeresis,
-    XKB_KEY_dead_invertedbreve,      Qt::Key_Dead_Invertedbreve,
-    XKB_KEY_dead_belowcomma,         Qt::Key_Dead_Belowcomma,
-    XKB_KEY_dead_currency,           Qt::Key_Dead_Currency,
-    XKB_KEY_dead_a,                  Qt::Key_Dead_a,
-    XKB_KEY_dead_A,                  Qt::Key_Dead_A,
-    XKB_KEY_dead_e,                  Qt::Key_Dead_e,
-    XKB_KEY_dead_E,                  Qt::Key_Dead_E,
-    XKB_KEY_dead_i,                  Qt::Key_Dead_i,
-    XKB_KEY_dead_I,                  Qt::Key_Dead_I,
-    XKB_KEY_dead_o,                  Qt::Key_Dead_o,
-    XKB_KEY_dead_O,                  Qt::Key_Dead_O,
-    XKB_KEY_dead_u,                  Qt::Key_Dead_u,
-    XKB_KEY_dead_U,                  Qt::Key_Dead_U,
-    XKB_KEY_dead_small_schwa,        Qt::Key_Dead_Small_Schwa,
-    XKB_KEY_dead_capital_schwa,      Qt::Key_Dead_Capital_Schwa,
-    XKB_KEY_dead_greek,              Qt::Key_Dead_Greek,
-    XKB_KEY_dead_lowline,            Qt::Key_Dead_Lowline,
-    XKB_KEY_dead_aboveverticalline,  Qt::Key_Dead_Aboveverticalline,
-    XKB_KEY_dead_belowverticalline,  Qt::Key_Dead_Belowverticalline,
-    XKB_KEY_dead_longsolidusoverlay, Qt::Key_Dead_Longsolidusoverlay,
-
-    XKB_KEY_Mode_switch,             Qt::Key_Mode_switch,
-    XKB_KEY_script_switch,           Qt::Key_Mode_switch,
-    XKB_KEY_XF86AudioRaiseVolume,    Qt::Key_VolumeUp,
-    XKB_KEY_XF86AudioLowerVolume,    Qt::Key_VolumeDown,
-    XKB_KEY_XF86PowerOff,            Qt::Key_PowerOff,
-    XKB_KEY_XF86PowerDown,           Qt::Key_PowerDown,
-
-    0,                          0
-};
-
-Qt::WindowState mirSurfaceStateToWindowState(MirSurfaceState state)
-{
-    switch (state) {
-    case mir_surface_state_fullscreen:
-        return Qt::WindowFullScreen;
-    case mir_surface_state_maximized:
-    case mir_surface_state_vertmaximized:
-    case mir_surface_state_horizmaximized:
-        return Qt::WindowMaximized;
-    case mir_surface_state_minimized:
-        return Qt::WindowMinimized;
-    case mir_surface_state_hidden:
-        // We should be handling this state separately.
-        Q_ASSERT(false);
-    case mir_surface_state_restored:
-    case mir_surface_state_unknown:
-    default:
-        return Qt::WindowNoState;
-    }
-}
-
-} // namespace
-
-class UbuntuEvent : public QEvent
-{
-public:
-    UbuntuEvent(QMirClientWindow* window, const MirEvent *event, QEvent::Type type)
-        : QEvent(type), window(window) {
-        nativeEvent = mir_event_ref(event);
-    }
-    ~UbuntuEvent()
-    {
-        mir_event_unref(nativeEvent);
-    }
-
-    QPointer<QMirClientWindow> window;
-    const MirEvent *nativeEvent;
-};
-
-QMirClientInput::QMirClientInput(QMirClientClientIntegration* integration)
-    : QObject(nullptr)
-    , mIntegration(integration)
-    , mEventFilterType(static_cast<QMirClientNativeInterface*>(
-        integration->nativeInterface())->genericEventFilterType())
-    , mEventType(static_cast<QEvent::Type>(QEvent::registerEventType()))
-    , mLastInputWindow(nullptr)
-{
-    // Initialize touch device.
-    mTouchDevice = new QTouchDevice;
-    mTouchDevice->setType(QTouchDevice::TouchScreen);
-    mTouchDevice->setCapabilities(
-            QTouchDevice::Position | QTouchDevice::Area | QTouchDevice::Pressure |
-            QTouchDevice::NormalizedPosition);
-    QWindowSystemInterface::registerTouchDevice(mTouchDevice);
-}
-
-QMirClientInput::~QMirClientInput()
-{
-  // Qt will take care of deleting mTouchDevice.
-}
-
-static const char* nativeEventTypeToStr(MirEventType t)
-{
-    switch (t)
-    {
-    case mir_event_type_key:
-        return "key";
-    case mir_event_type_motion:
-        return "motion";
-    case mir_event_type_surface:
-        return "surface";
-    case mir_event_type_resize:
-        return "resize";
-    case mir_event_type_prompt_session_state_change:
-        return "prompt_session_state_change";
-    case mir_event_type_orientation:
-        return "orientation";
-    case mir_event_type_close_surface:
-        return "close_surface";
-    case mir_event_type_input:
-        return "input";
-    case mir_event_type_keymap:
-        return "keymap";
-    case mir_event_type_input_configuration:
-        return "input_configuration";
-    case mir_event_type_surface_output:
-        return "surface_output";
-    case mir_event_type_input_device_state:
-        return "input_device_state";
-    default:
-        return "unknown";
-    }
-}
-
-void QMirClientInput::customEvent(QEvent* event)
-{
-    Q_ASSERT(QThread::currentThread() == thread());
-    UbuntuEvent* ubuntuEvent = static_cast<UbuntuEvent*>(event);
-    const MirEvent *nativeEvent = ubuntuEvent->nativeEvent;
-
-    if ((ubuntuEvent->window == nullptr) || (ubuntuEvent->window->window() == nullptr)) {
-        qCWarning(mirclient) << "Attempted to deliver an event to a non-existent window, ignoring.";
-        return;
-    }
-
-    // Event filtering.
-    long result;
-    if (QWindowSystemInterface::handleNativeEvent(
-            ubuntuEvent->window->window(), mEventFilterType,
-            const_cast<void *>(static_cast<const void *>(nativeEvent)), &result) == true) {
-        qCDebug(mirclient, "event filtered out by native interface");
-        return;
-    }
-
-    qCDebug(mirclientInput, "customEvent(type=%s)", nativeEventTypeToStr(mir_event_get_type(nativeEvent)));
-
-    // Event dispatching.
-    switch (mir_event_get_type(nativeEvent))
-    {
-    case mir_event_type_input:
-        dispatchInputEvent(ubuntuEvent->window, mir_event_get_input_event(nativeEvent));
-        break;
-    case mir_event_type_resize:
-    {
-        auto resizeEvent = mir_event_get_resize_event(nativeEvent);
-
-        // Enable workaround for Screen rotation
-        auto const targetWindow = ubuntuEvent->window;
-        if (targetWindow) {
-            auto const screen = static_cast<QMirClientScreen*>(targetWindow->screen());
-            if (screen) {
-                screen->handleWindowSurfaceResize(
-                        mir_resize_event_get_width(resizeEvent),
-                        mir_resize_event_get_height(resizeEvent));
-            }
-
-            targetWindow->handleSurfaceResized(
-                        mir_resize_event_get_width(resizeEvent),
-                        mir_resize_event_get_height(resizeEvent));
-        }
-        break;
-    }
-    case mir_event_type_surface:
-        handleSurfaceEvent(ubuntuEvent->window, mir_event_get_surface_event(nativeEvent));
-        break;
-    case mir_event_type_surface_output:
-        handleSurfaceOutputEvent(ubuntuEvent->window, mir_event_get_surface_output_event(nativeEvent));
-        break;
-    case mir_event_type_orientation:
-        dispatchOrientationEvent(ubuntuEvent->window->window(), mir_event_get_orientation_event(nativeEvent));
-        break;
-    case mir_event_type_close_surface:
-        QWindowSystemInterface::handleCloseEvent(ubuntuEvent->window->window());
-        break;
-    default:
-        qCDebug(mirclient, "unhandled event type: %d", static_cast<int>(mir_event_get_type(nativeEvent)));
-    }
-}
-
-void QMirClientInput::postEvent(QMirClientWindow *platformWindow, const MirEvent *event)
-{
-    QWindow *window = platformWindow->window();
-
-    QCoreApplication::postEvent(this, new UbuntuEvent(
-            platformWindow, event, mEventType));
-
-    if ((window->flags().testFlag(Qt::WindowTransparentForInput)) && window->parent()) {
-        QCoreApplication::postEvent(this, new UbuntuEvent(
-                    static_cast<QMirClientWindow*>(platformWindow->QPlatformWindow::parent()),
-                    event, mEventType));
-    }
-}
-
-void QMirClientInput::dispatchInputEvent(QMirClientWindow *window, const MirInputEvent *ev)
-{
-    switch (mir_input_event_get_type(ev))
-    {
-    case mir_input_event_type_key:
-        dispatchKeyEvent(window, ev);
-        break;
-    case mir_input_event_type_touch:
-        dispatchTouchEvent(window, ev);
-        break;
-    case mir_input_event_type_pointer:
-        dispatchPointerEvent(window, ev);
-        break;
-    default:
-        break;
-    }
-}
-
-void QMirClientInput::dispatchTouchEvent(QMirClientWindow *window, const MirInputEvent *ev)
-{
-    const MirTouchEvent *tev = mir_input_event_get_touch_event(ev);
-
-    // FIXME(loicm) Max pressure is device specific. That one is for the Samsung Galaxy Nexus. That
-    //     needs to be fixed as soon as the compat input lib adds query support.
-    const float kMaxPressure = 1.28;
-    const QRect kWindowGeometry = window->geometry();
-    QList<QWindowSystemInterface::TouchPoint> touchPoints;
-
-
-    // TODO: Is it worth setting the Qt::TouchPointStationary ones? Currently they are left
-    //       as Qt::TouchPointMoved
-    const unsigned int kPointerCount = mir_touch_event_point_count(tev);
-    touchPoints.reserve(int(kPointerCount));
-    for (unsigned int i = 0; i < kPointerCount; ++i) {
-        QWindowSystemInterface::TouchPoint touchPoint;
-
-        const float kX = mir_touch_event_axis_value(tev, i, mir_touch_axis_x) + kWindowGeometry.x();
-        const float kY = mir_touch_event_axis_value(tev, i, mir_touch_axis_y) + kWindowGeometry.y(); // see bug lp:1346633 workaround comments elsewhere
-        const float kW = mir_touch_event_axis_value(tev, i, mir_touch_axis_touch_major);
-        const float kH = mir_touch_event_axis_value(tev, i, mir_touch_axis_touch_minor);
-        const float kP = mir_touch_event_axis_value(tev, i, mir_touch_axis_pressure);
-        touchPoint.id = mir_touch_event_id(tev, i);
-        touchPoint.normalPosition = QPointF(kX / kWindowGeometry.width(), kY / kWindowGeometry.height());
-        touchPoint.area = QRectF(kX - (kW / 2.0), kY - (kH / 2.0), kW, kH);
-        touchPoint.pressure = kP / kMaxPressure;
-
-        MirTouchAction touch_action = mir_touch_event_action(tev, i);
-        switch (touch_action)
-        {
-        case mir_touch_action_down:
-            mLastInputWindow = window;
-            touchPoint.state = Qt::TouchPointPressed;
-            break;
-        case mir_touch_action_up:
-            touchPoint.state = Qt::TouchPointReleased;
-            break;
-        case mir_touch_action_change:
-            touchPoint.state = Qt::TouchPointMoved;
-            break;
-        default:
-            Q_UNREACHABLE();
-        }
-
-        touchPoints.append(touchPoint);
-    }
-
-    ulong timestamp = mir_input_event_get_event_time(ev) / 1000000;
-    QWindowSystemInterface::handleTouchEvent(window->window(), timestamp,
-            mTouchDevice, touchPoints);
-}
-
-static uint32_t translateKeysym(uint32_t sym, const QString &text) {
-    int code = 0;
-
-    QTextCodec *systemCodec = QTextCodec::codecForLocale();
-    if (sym < 128 || (sym < 256 && systemCodec->mibEnum() == 4)) {
-        // upper-case key, if known
-        code = isprint((int)sym) ? toupper((int)sym) : 0;
-    } else if (sym >= XKB_KEY_F1 && sym <= XKB_KEY_F35) {
-        return Qt::Key_F1 + (int(sym) - XKB_KEY_F1);
-    } else if (text.length() == 1 && text.unicode()->unicode() > 0x1f
-               && text.unicode()->unicode() != 0x7f
-               && !(sym >= XKB_KEY_dead_grave && sym <= XKB_KEY_dead_currency)) {
-        code = text.unicode()->toUpper().unicode();
-    } else {
-        for (int i = 0; KeyTable[i]; i += 2)
-            if (sym == KeyTable[i])
-                code = KeyTable[i + 1];
-    }
-
-    return code;
-}
-
-namespace
-{
-Qt::KeyboardModifiers qt_modifiers_from_mir(MirInputEventModifiers modifiers)
-{
-    Qt::KeyboardModifiers q_modifiers = Qt::NoModifier;
-    if (modifiers & mir_input_event_modifier_shift) {
-        q_modifiers |= Qt::ShiftModifier;
-    }
-    if (modifiers & mir_input_event_modifier_ctrl) {
-        q_modifiers |= Qt::ControlModifier;
-    }
-    if (modifiers & mir_input_event_modifier_alt_left) {
-        q_modifiers |= Qt::AltModifier;
-    }
-    if (modifiers & mir_input_event_modifier_meta) {
-        q_modifiers |= Qt::MetaModifier;
-    }
-    if (modifiers & mir_input_event_modifier_alt_right) {
-        q_modifiers |= Qt::GroupSwitchModifier;
-    }
-    return q_modifiers;
-}
-}
-
-void QMirClientInput::dispatchKeyEvent(QMirClientWindow *window, const MirInputEvent *event)
-{
-    const MirKeyboardEvent *key_event = mir_input_event_get_keyboard_event(event);
-
-    ulong timestamp = mir_input_event_get_event_time(event) / 1000000;
-    xkb_keysym_t xk_sym = mir_keyboard_event_key_code(key_event);
-    quint32 scan_code = mir_keyboard_event_scan_code(key_event);
-    quint32 native_modifiers = mir_keyboard_event_modifiers(key_event);
-
-    // Key modifier and unicode index mapping.
-    auto modifiers = qt_modifiers_from_mir(native_modifiers);
-
-    MirKeyboardAction action = mir_keyboard_event_action(key_event);
-    QEvent::Type keyType = action == mir_keyboard_action_up
-        ? QEvent::KeyRelease : QEvent::KeyPress;
-
-    if (action == mir_keyboard_action_down)
-        mLastInputWindow = window;
-
-    QString text;
-    QVarLengthArray<char, 32> chars(32);
-    {
-        int result = xkb_keysym_to_utf8(xk_sym, chars.data(), chars.size());
-
-        if (result > 0) {
-            text = QString::fromUtf8(chars.constData());
-        }
-    }
-    int sym = translateKeysym(xk_sym, text);
-
-    bool is_auto_rep = action == mir_keyboard_action_repeat;
-
-    QPlatformInputContext *context = QGuiApplicationPrivate::platformIntegration()->inputContext();
-    if (context) {
-        QKeyEvent qKeyEvent(keyType, sym, modifiers, scan_code, xk_sym, native_modifiers, text, is_auto_rep);
-        qKeyEvent.setTimestamp(timestamp);
-        if (context->filterEvent(&qKeyEvent)) {
-            qCDebug(mirclient, "key event filtered out by input context");
-            return;
-        }
-    }
-
-    QWindowSystemInterface::handleExtendedKeyEvent(window->window(), timestamp, keyType, sym, modifiers, scan_code, xk_sym, native_modifiers, text, is_auto_rep);
-}
-
-namespace
-{
-Qt::MouseButtons extract_buttons(const MirPointerEvent *pev)
-{
-    Qt::MouseButtons buttons = Qt::NoButton;
-    if (mir_pointer_event_button_state(pev, mir_pointer_button_primary))
-        buttons |= Qt::LeftButton;
-    if (mir_pointer_event_button_state(pev, mir_pointer_button_secondary))
-        buttons |= Qt::RightButton;
-    if (mir_pointer_event_button_state(pev, mir_pointer_button_tertiary))
-        buttons |= Qt::MiddleButton;
-    if (mir_pointer_event_button_state(pev, mir_pointer_button_back))
-        buttons |= Qt::BackButton;
-    if (mir_pointer_event_button_state(pev, mir_pointer_button_forward))
-        buttons |= Qt::ForwardButton;
-
-    return buttons;
-}
-}
-
-void QMirClientInput::dispatchPointerEvent(QMirClientWindow *platformWindow, const MirInputEvent *ev)
-{
-    const auto window = platformWindow->window();
-    const auto timestamp = mir_input_event_get_event_time(ev) / 1000000;
-
-    const auto pev = mir_input_event_get_pointer_event(ev);
-    const auto action = mir_pointer_event_action(pev);
-
-    const auto modifiers = qt_modifiers_from_mir(mir_pointer_event_modifiers(pev));
-    const auto localPoint = QPointF(mir_pointer_event_axis_value(pev, mir_pointer_axis_x),
-                                    mir_pointer_event_axis_value(pev, mir_pointer_axis_y));
-
-    mLastInputWindow = platformWindow;
-
-    switch (action) {
-    case mir_pointer_action_button_up:
-    case mir_pointer_action_button_down:
-    case mir_pointer_action_motion:
-    {
-        const float hDelta = mir_pointer_event_axis_value(pev, mir_pointer_axis_hscroll);
-        const float vDelta = mir_pointer_event_axis_value(pev, mir_pointer_axis_vscroll);
-
-        if (hDelta != 0 || vDelta != 0) {
-            // QWheelEvent::DefaultDeltasPerStep = 120 but doesn't exist on vivid
-            const QPoint angleDelta(120 * hDelta, 120 * vDelta);
-            QWindowSystemInterface::handleWheelEvent(window, timestamp, localPoint, window->position() + localPoint,
-                                                     QPoint(), angleDelta, modifiers, Qt::ScrollUpdate);
-        }
-        auto buttons = extract_buttons(pev);
-        QWindowSystemInterface::handleMouseEvent(window, timestamp, localPoint, window->position() + localPoint /* Should we omit global point instead? */,
-                                                 buttons, modifiers);
-        break;
-    }
-    case mir_pointer_action_enter:
-        QWindowSystemInterface::handleEnterEvent(window, localPoint, window->position() + localPoint);
-        break;
-    case mir_pointer_action_leave:
-        QWindowSystemInterface::handleLeaveEvent(window);
-        break;
-    default:
-        Q_UNREACHABLE();
-    }
-}
-
-static const char* nativeOrientationDirectionToStr(MirOrientation orientation)
-{
-    switch (orientation) {
-    case mir_orientation_normal:
-        return "Normal";
-    case mir_orientation_left:
-        return "Left";
-    case mir_orientation_inverted:
-        return "Inverted";
-    case mir_orientation_right:
-        return "Right";
-    }
-    Q_UNREACHABLE();
-}
-
-void QMirClientInput::dispatchOrientationEvent(QWindow *window, const MirOrientationEvent *event)
-{
-    MirOrientation mir_orientation = mir_orientation_event_get_direction(event);
-    qCDebug(mirclientInput, "orientation direction: %s", nativeOrientationDirectionToStr(mir_orientation));
-
-    if (!window->screen()) {
-        qCDebug(mirclient, "Window has no associated screen, dropping orientation event");
-        return;
-    }
-
-    OrientationChangeEvent::Orientation orientation;
-    switch (mir_orientation) {
-    case mir_orientation_normal:
-        orientation = OrientationChangeEvent::TopUp;
-        break;
-    case mir_orientation_left:
-        orientation = OrientationChangeEvent::LeftUp;
-        break;
-    case mir_orientation_inverted:
-        orientation = OrientationChangeEvent::TopDown;
-        break;
-    case mir_orientation_right:
-        orientation = OrientationChangeEvent::RightUp;
-        break;
-    default:
-        qCDebug(mirclient, "No such orientation %d", mir_orientation);
-        return;
-    }
-
-    // Dispatch orientation event to [Platform]Screen, as that is where Qt reads it. Screen will handle
-    // notifying Qt of the actual orientation change - done to prevent multiple Windows each creating
-    // an identical orientation change event and passing it directly to Qt.
-    // [Platform]Screen can also factor in the native orientation.
-    QCoreApplication::postEvent(static_cast<QMirClientScreen*>(window->screen()->handle()),
-                                new OrientationChangeEvent(OrientationChangeEvent::mType, orientation));
-}
-
-void QMirClientInput::handleSurfaceEvent(const QPointer<QMirClientWindow> &window, const MirSurfaceEvent *event)
-{
-    auto surfaceEventAttribute = mir_surface_event_get_attribute(event);
-
-    switch (surfaceEventAttribute) {
-    case mir_surface_attrib_focus: {
-        window->handleSurfaceFocusChanged(
-                    mir_surface_event_get_attribute_value(event) == mir_surface_focused);
-        break;
-    }
-    case mir_surface_attrib_visibility: {
-        window->handleSurfaceExposeChange(
-                    mir_surface_event_get_attribute_value(event) == mir_surface_visibility_exposed);
-        break;
-    }
-    // Remaining attributes are ones client sets for server, and server should not override them
-    case mir_surface_attrib_state: {
-        MirSurfaceState state = static_cast<MirSurfaceState>(mir_surface_event_get_attribute_value(event));
-
-        if (state == mir_surface_state_hidden) {
-            window->handleSurfaceVisibilityChanged(false);
-        } else {
-            // it's visible!
-            window->handleSurfaceVisibilityChanged(true);
-            window->handleSurfaceStateChanged(mirSurfaceStateToWindowState(state));
-        }
-        break;
-    }
-    case mir_surface_attrib_type:
-    case mir_surface_attrib_swapinterval:
-    case mir_surface_attrib_dpi:
-    case mir_surface_attrib_preferred_orientation:
-    case mir_surface_attribs:
-        break;
-    }
-}
-
-void QMirClientInput::handleSurfaceOutputEvent(const QPointer<QMirClientWindow> &window, const MirSurfaceOutputEvent *event)
-{
-    const uint32_t outputId = mir_surface_output_event_get_output_id(event);
-    const int dpi = mir_surface_output_event_get_dpi(event);
-    const MirFormFactor formFactor = mir_surface_output_event_get_form_factor(event);
-    const float scale = mir_surface_output_event_get_scale(event);
-
-    const auto screenObserver = mIntegration->screenObserver();
-    QMirClientScreen *screen = screenObserver->findScreenWithId(outputId);
-    if (!screen) {
-        qCWarning(mirclient) << "Mir notified window" << window->window() << "on an unknown screen with id" << outputId;
-        return;
-    }
-
-    screenObserver->handleScreenPropertiesChange(screen, dpi, formFactor, scale);
-    window->handleScreenPropertiesChange(formFactor, scale);
-
-    if (window->screen() != screen) {
-        QWindowSystemInterface::handleWindowScreenChanged(window->window(), screen->screen());
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientinput.h b/src/plugins/platforms/mirclient/qmirclientinput.h
deleted file mode 100644
index 263cb5e54e..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientinput.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTINPUT_H
-#define QMIRCLIENTINPUT_H
-
-// Qt
-#include <qpa/qwindowsysteminterface.h>
-
-#include <mir_toolkit/mir_client_library.h>
-
-class QMirClientClientIntegration;
-class QMirClientWindow;
-
-class QMirClientInput : public QObject
-{
-    Q_OBJECT
-
-public:
-    QMirClientInput(QMirClientClientIntegration* integration);
-    virtual ~QMirClientInput();
-
-    // QObject methods.
-    void customEvent(QEvent* event) override;
-
-    void postEvent(QMirClientWindow* window, const MirEvent *event);
-    QMirClientClientIntegration* integration() const { return mIntegration; }
-    QMirClientWindow *lastInputWindow() const {return mLastInputWindow; }
-
-protected:
-    void dispatchKeyEvent(QMirClientWindow *window, const MirInputEvent *event);
-    void dispatchPointerEvent(QMirClientWindow *window, const MirInputEvent *event);
-    void dispatchTouchEvent(QMirClientWindow *window, const MirInputEvent *event);
-    void dispatchInputEvent(QMirClientWindow *window, const MirInputEvent *event);
-
-    void dispatchOrientationEvent(QWindow* window, const MirOrientationEvent *event);
-    void handleSurfaceEvent(const QPointer<QMirClientWindow> &window, const MirSurfaceEvent *event);
-    void handleSurfaceOutputEvent(const QPointer<QMirClientWindow> &window, const MirSurfaceOutputEvent *event);
-
-private:
-    QMirClientClientIntegration* mIntegration;
-    QTouchDevice* mTouchDevice;
-    const QByteArray mEventFilterType;
-    const QEvent::Type mEventType;
-
-    QMirClientWindow *mLastInputWindow;
-};
-
-#endif // QMIRCLIENTINPUT_H
diff --git a/src/plugins/platforms/mirclient/qmirclientintegration.cpp b/src/plugins/platforms/mirclient/qmirclientintegration.cpp
deleted file mode 100644
index d2b1dbee0d..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientintegration.cpp
+++ /dev/null
@@ -1,412 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-// Local
-#include "qmirclientintegration.h"
-#include "qmirclientbackingstore.h"
-#include "qmirclientclipboard.h"
-#include "qmirclientdebugextension.h"
-#include "qmirclientdesktopwindow.h"
-#include "qmirclientglcontext.h"
-#include "qmirclientinput.h"
-#include "qmirclientlogging.h"
-#include "qmirclientnativeinterface.h"
-#include "qmirclientscreen.h"
-#include "qmirclienttheme.h"
-#include "qmirclientwindow.h"
-
-// Qt
-#include <QFileInfo>
-#include <QGuiApplication>
-#include <qpa/qplatformnativeinterface.h>
-#include <qpa/qplatforminputcontextfactory_p.h>
-#include <qpa/qplatforminputcontext.h>
-#include <qpa/qwindowsysteminterface.h>
-#include <QtEglSupport/private/qeglconvenience_p.h>
-#include <QtEglSupport/private/qeglpbuffer_p.h>
-#include <QtFontDatabaseSupport/private/qgenericunixfontdatabase_p.h>
-#include <QtEventDispatcherSupport/private/qgenericunixeventdispatcher_p.h>
-#ifndef QT_NO_ACCESSIBILITY
-#include <qpa/qplatformaccessibility.h>
-#ifndef QT_NO_ACCESSIBILITY_ATSPI_BRIDGE
-#include <QtLinuxAccessibilitySupport/private/bridge_p.h>
-#endif
-#endif
-
-#include <QOpenGLContext>
-#include <QOffscreenSurface>
-
-// platform-api
-#include <ubuntu/application/lifecycle_delegate.h>
-#include <ubuntu/application/id.h>
-#include <ubuntu/application/options.h>
-
-static void resumedCallback(const UApplicationOptions */*options*/, void* context)
-{
-    auto integration = static_cast<QMirClientClientIntegration*>(context);
-    integration->appStateController()->setResumed();
-}
-
-static void aboutToStopCallback(UApplicationArchive */*archive*/, void* context)
-{
-    auto integration = static_cast<QMirClientClientIntegration*>(context);
-    auto inputContext = integration->inputContext();
-    if (inputContext) {
-        inputContext->hideInputPanel();
-    } else {
-        qCWarning(mirclient) << "aboutToStopCallback(): no input context";
-    }
-    integration->appStateController()->setSuspended();
-}
-
-QMirClientClientIntegration::QMirClientClientIntegration(int argc, char **argv)
-    : QPlatformIntegration()
-    , mNativeInterface(new QMirClientNativeInterface(this))
-    , mFontDb(new QGenericUnixFontDatabase)
-    , mServices(new QMirClientPlatformServices)
-    , mAppStateController(new QMirClientAppStateController)
-    , mScaleFactor(1.0)
-{
-    {
-        QStringList args = QCoreApplication::arguments();
-        setupOptions(args);
-        QByteArray sessionName = generateSessionName(args);
-        setupDescription(sessionName);
-    }
-
-    // Create new application instance
-    mInstance = u_application_instance_new_from_description_with_options(mDesc, mOptions);
-
-    if (Q_UNLIKELY(!mInstance))
-        qFatal("QMirClientClientIntegration: connection to Mir server failed. Check that a Mir server is\n"
-               "running, and the correct socket is being used and is accessible. The shell may have\n"
-               "rejected the incoming connection, so check its log file");
-
-    mMirConnection = u_application_instance_get_mir_connection(mInstance);
-
-    // Choose the default surface format suited to the Mir platform
-    QSurfaceFormat defaultFormat;
-    defaultFormat.setRedBufferSize(8);
-    defaultFormat.setGreenBufferSize(8);
-    defaultFormat.setBlueBufferSize(8);
-    QSurfaceFormat::setDefaultFormat(defaultFormat);
-
-    // Initialize EGL.
-    mEglNativeDisplay = mir_connection_get_egl_native_display(mMirConnection);
-    ASSERT((mEglDisplay = eglGetDisplay(mEglNativeDisplay)) != EGL_NO_DISPLAY);
-    ASSERT(eglInitialize(mEglDisplay, nullptr, nullptr) == EGL_TRUE);
-
-    // Has debug mode been requsted, either with "-testability" switch or QT_LOAD_TESTABILITY env var
-    bool testability = qEnvironmentVariableIsSet("QT_LOAD_TESTABILITY");
-    for (int i=1; !testability && i<argc; i++) {
-        if (strcmp(argv[i], "-testability") == 0) {
-            testability = true;
-        }
-    }
-    if (testability) {
-        mDebugExtension.reset(new QMirClientDebugExtension);
-    }
-}
-
-void QMirClientClientIntegration::initialize()
-{
-    // Init the ScreenObserver
-    mScreenObserver.reset(new QMirClientScreenObserver(mMirConnection));
-    connect(mScreenObserver.data(), &QMirClientScreenObserver::screenAdded,
-            [this](QMirClientScreen *screen) { QWindowSystemInterface::handleScreenAdded(screen); });
-    connect(mScreenObserver.data(), &QMirClientScreenObserver::screenRemoved,
-                     this, &QMirClientClientIntegration::destroyScreen);
-
-    Q_FOREACH (auto screen, mScreenObserver->screens()) {
-        QWindowSystemInterface::handleScreenAdded(screen);
-    }
-
-    // Initialize input.
-    mInput = new QMirClientInput(this);
-    mInputContext = QPlatformInputContextFactory::create();
-
-    // compute the scale factor
-    const int defaultGridUnit = 8;
-    int gridUnit = defaultGridUnit;
-    QByteArray gridUnitString = qgetenv("GRID_UNIT_PX");
-    if (!gridUnitString.isEmpty()) {
-        bool ok;
-        gridUnit = gridUnitString.toInt(&ok);
-        if (!ok) {
-            gridUnit = defaultGridUnit;
-        }
-    }
-    mScaleFactor = static_cast<qreal>(gridUnit) / defaultGridUnit;
-}
-
-QMirClientClientIntegration::~QMirClientClientIntegration()
-{
-    eglTerminate(mEglDisplay);
-    delete mInput;
-    delete mInputContext;
-    delete mServices;
-}
-
-QPlatformServices *QMirClientClientIntegration::services() const
-{
-    return mServices;
-}
-
-void QMirClientClientIntegration::setupOptions(QStringList &args)
-{
-    int argc = args.size() + 1;
-    char **argv = new char*[argc];
-    for (int i = 0; i < argc - 1; i++)
-        argv[i] = qstrdup(args.at(i).toLocal8Bit());
-    argv[argc - 1] = nullptr;
-
-    mOptions = u_application_options_new_from_cmd_line(argc - 1, argv);
-
-    for (int i = 0; i < argc; i++)
-        delete [] argv[i];
-    delete [] argv;
-}
-
-void QMirClientClientIntegration::setupDescription(QByteArray &sessionName)
-{
-    mDesc = u_application_description_new();
-
-    UApplicationId* id = u_application_id_new_from_stringn(sessionName.data(), sessionName.count());
-    u_application_description_set_application_id(mDesc, id);
-
-    UApplicationLifecycleDelegate* delegate = u_application_lifecycle_delegate_new();
-    u_application_lifecycle_delegate_set_application_resumed_cb(delegate, &resumedCallback);
-    u_application_lifecycle_delegate_set_application_about_to_stop_cb(delegate, &aboutToStopCallback);
-    u_application_lifecycle_delegate_set_context(delegate, this);
-    u_application_description_set_application_lifecycle_delegate(mDesc, delegate);
-}
-
-QByteArray QMirClientClientIntegration::generateSessionName(QStringList &args)
-{
-    // Try to come up with some meaningful session name to uniquely identify this session,
-    // helping with shell debugging
-
-    if (args.count() == 0) {
-        return QByteArray("QtUbuntu");
-    } if (args[0].contains("qmlscene")) {
-        return generateSessionNameFromQmlFile(args);
-    } else {
-        // use the executable name
-        QFileInfo fileInfo(args[0]);
-        return fileInfo.fileName().toLocal8Bit();
-    }
-}
-
-QByteArray QMirClientClientIntegration::generateSessionNameFromQmlFile(QStringList &args)
-{
-    Q_FOREACH (QString arg, args) {
-        if (arg.endsWith(".qml")) {
-            QFileInfo fileInfo(arg);
-            return fileInfo.fileName().toLocal8Bit();
-        }
-    }
-
-    // give up
-    return "qmlscene";
-}
-
-QPlatformWindow* QMirClientClientIntegration::createPlatformWindow(QWindow* window) const
-{
-    if (window->type() == Qt::Desktop) {
-        // Desktop windows should not be backed up by a mir surface as they don't draw anything (nor should).
-        return new QMirClientDesktopWindow(window);
-    } else {
-        return new QMirClientWindow(window, mInput, mNativeInterface, mAppStateController.data(),
-                                    mEglDisplay, mMirConnection, mDebugExtension.data());
-    }
-}
-
-bool QMirClientClientIntegration::hasCapability(QPlatformIntegration::Capability cap) const
-{
-    switch (cap) {
-    case ThreadedOpenGL:
-        if (qEnvironmentVariableIsEmpty("QTUBUNTU_NO_THREADED_OPENGL")) {
-            return true;
-        } else {
-            qCDebug(mirclient, "disabled threaded OpenGL");
-            return false;
-        }
-
-    case ThreadedPixmaps:
-    case OpenGL:
-    case ApplicationState:
-    case MultipleWindows:
-    case NonFullScreenWindows:
-#if QT_VERSION > QT_VERSION_CHECK(5, 5, 0)
-    case SwitchableWidgetComposition:
-#endif
-    case RasterGLSurface: // needed for QQuickWidget
-        return true;
-    default:
-        return QPlatformIntegration::hasCapability(cap);
-    }
-}
-
-QAbstractEventDispatcher *QMirClientClientIntegration::createEventDispatcher() const
-{
-    return createUnixEventDispatcher();
-}
-
-QPlatformBackingStore* QMirClientClientIntegration::createPlatformBackingStore(QWindow* window) const
-{
-    return new QMirClientBackingStore(window);
-}
-
-QPlatformOpenGLContext* QMirClientClientIntegration::createPlatformOpenGLContext(
-        QOpenGLContext* context) const
-{
-    QSurfaceFormat format(context->format());
-
-    auto platformContext = new QMirClientOpenGLContext(format, context->shareHandle(), mEglDisplay);
-    if (!platformContext->isValid()) {
-        // Older Intel Atom-based devices only support OpenGL 1.4 compatibility profile but by default
-        // QML asks for at least OpenGL 2.0. The XCB GLX backend ignores this request and returns a
-        // 1.4 context, but the XCB EGL backend tries to honor it, and fails. The 1.4 context appears to
-        // have sufficient capabilities on MESA (i915) to render correctly however. So reduce the default
-        // requested OpenGL version to 1.0 to ensure EGL will give us a working context (lp:1549455).
-        static const bool isMesa = QString(eglQueryString(mEglDisplay, EGL_VENDOR)).contains(QStringLiteral("Mesa"));
-        if (isMesa) {
-            qCDebug(mirclientGraphics, "Attempting to choose OpenGL 1.4 context which may suit Mesa");
-            format.setMajorVersion(1);
-            format.setMinorVersion(4);
-            delete platformContext;
-            platformContext = new QMirClientOpenGLContext(format, context->shareHandle(), mEglDisplay);
-        }
-    }
-    return platformContext;
-}
-
-QStringList QMirClientClientIntegration::themeNames() const
-{
-    return QStringList(QMirClientTheme::name);
-}
-
-QPlatformTheme* QMirClientClientIntegration::createPlatformTheme(const QString& name) const
-{
-    Q_UNUSED(name);
-    return new QMirClientTheme;
-}
-
-QVariant QMirClientClientIntegration::styleHint(StyleHint hint) const
-{
-    switch (hint) {
-        case QPlatformIntegration::StartDragDistance: {
-            // default is 10 pixels (see QPlatformTheme::defaultThemeHint)
-            return 10.0 * mScaleFactor;
-        }
-        case QPlatformIntegration::PasswordMaskDelay: {
-            // return time in milliseconds - 1 second
-            return QVariant(1000);
-        }
-        default:
-            break;
-    }
-    return QPlatformIntegration::styleHint(hint);
-}
-
-QPlatformClipboard* QMirClientClientIntegration::clipboard() const
-{
-    static QPlatformClipboard *clipboard = nullptr;
-    if (!clipboard) {
-        clipboard = new QMirClientClipboard;
-    }
-    return clipboard;
-}
-
-QPlatformNativeInterface* QMirClientClientIntegration::nativeInterface() const
-{
-    return mNativeInterface;
-}
-
-QPlatformOffscreenSurface *QMirClientClientIntegration::createPlatformOffscreenSurface(
-        QOffscreenSurface *surface) const
-{
-    return new QEGLPbuffer(mEglDisplay, surface->requestedFormat(), surface);
-}
-
-void QMirClientClientIntegration::destroyScreen(QMirClientScreen *screen)
-{
-    // FIXME: on deleting a screen while a Window is on it, Qt will automatically
-    // move the window to the primaryScreen(). This will trigger a screenChanged
-    // signal, causing things like QQuickScreenAttached to re-fetch screen properties
-    // like DPI and physical size. However this is crashing, as Qt is calling virtual
-    // functions on QPlatformScreen, for reasons unclear. As workaround, move window
-    // to primaryScreen() before deleting the screen. Might be QTBUG-38650
-
-    QScreen *primaryScreen = QGuiApplication::primaryScreen();
-    if (screen != primaryScreen->handle()) {
-        uint32_t movedWindowCount = 0;
-        Q_FOREACH (QWindow *w, QGuiApplication::topLevelWindows()) {
-            if (w->screen()->handle() == screen) {
-                QWindowSystemInterface::handleWindowScreenChanged(w, primaryScreen);
-                ++movedWindowCount;
-            }
-        }
-        if (movedWindowCount > 0) {
-            QWindowSystemInterface::flushWindowSystemEvents();
-        }
-    }
-
-    qCDebug(mirclient) << "Removing Screen with id" << screen->mirOutputId() << "and geometry" << screen->geometry();
-#if QT_VERSION < QT_VERSION_CHECK(5, 5, 0)
-    delete screen;
-#else
-    QWindowSystemInterface::handleScreenRemoved(screen);
-#endif
-}
-
-#ifndef QT_NO_ACCESSIBILITY
-QPlatformAccessibility *QMirClientClientIntegration::accessibility() const
-{
-#if !defined(QT_NO_ACCESSIBILITY_ATSPI_BRIDGE)
-    if (!mAccessibility) {
-        Q_ASSERT_X(QCoreApplication::eventDispatcher(), "QMirClientIntegration",
-            "Initializing accessibility without event-dispatcher!");
-        mAccessibility.reset(new QSpiAccessibleBridge());
-    }
-#endif
-    return mAccessibility.data();
-}
-#endif
diff --git a/src/plugins/platforms/mirclient/qmirclientintegration.h b/src/plugins/platforms/mirclient/qmirclientintegration.h
deleted file mode 100644
index 035117f4da..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientintegration.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTINTEGRATION_H
-#define QMIRCLIENTINTEGRATION_H
-
-#include <qpa/qplatformintegration.h>
-#include <QSharedPointer>
-
-#include "qmirclientappstatecontroller.h"
-#include "qmirclientplatformservices.h"
-#include "qmirclientscreenobserver.h"
-
-// platform-api
-#include <ubuntu/application/description.h>
-#include <ubuntu/application/instance.h>
-
-#include <EGL/egl.h>
-
-class QMirClientDebugExtension;
-class QMirClientInput;
-class QMirClientNativeInterface;
-class QMirClientScreen;
-class MirConnection;
-
-class QMirClientClientIntegration : public QObject, public QPlatformIntegration
-{
-    Q_OBJECT
-
-public:
-    QMirClientClientIntegration(int argc, char **argv);
-    virtual ~QMirClientClientIntegration();
-
-    // QPlatformIntegration methods.
-    bool hasCapability(QPlatformIntegration::Capability cap) const override;
-    QAbstractEventDispatcher *createEventDispatcher() const override;
-    QPlatformNativeInterface* nativeInterface() const override;
-    QPlatformBackingStore* createPlatformBackingStore(QWindow* window) const override;
-    QPlatformOpenGLContext* createPlatformOpenGLContext(QOpenGLContext* context) const override;
-    QPlatformFontDatabase* fontDatabase() const override { return mFontDb; }
-    QStringList themeNames() const override;
-    QPlatformTheme* createPlatformTheme(const QString& name) const override;
-    QVariant styleHint(StyleHint hint) const override;
-    QPlatformServices *services() const override;
-    QPlatformWindow* createPlatformWindow(QWindow* window) const override;
-    QPlatformInputContext* inputContext() const override { return mInputContext; }
-    QPlatformClipboard* clipboard() const override;
-    void initialize() override;
-    QPlatformOffscreenSurface *createPlatformOffscreenSurface(QOffscreenSurface *surface) const override;
-    QPlatformAccessibility *accessibility() const override;
-
-    // New methods.
-    MirConnection *mirConnection() const { return mMirConnection; }
-    EGLDisplay eglDisplay() const { return mEglDisplay; }
-    EGLNativeDisplayType eglNativeDisplay() const { return mEglNativeDisplay; }
-    QMirClientAppStateController *appStateController() const { return mAppStateController.data(); }
-    QMirClientScreenObserver *screenObserver() const { return mScreenObserver.data(); }
-    QMirClientDebugExtension *debugExtension() const { return mDebugExtension.data(); }
-
-private Q_SLOTS:
-    void destroyScreen(QMirClientScreen *screen);
-
-private:
-    void setupOptions(QStringList &args);
-    void setupDescription(QByteArray &sessionName);
-    static QByteArray generateSessionName(QStringList &args);
-    static QByteArray generateSessionNameFromQmlFile(QStringList &args);
-
-    QMirClientNativeInterface* mNativeInterface;
-    QPlatformFontDatabase* mFontDb;
-
-    QMirClientPlatformServices* mServices;
-
-    QMirClientInput* mInput;
-    QPlatformInputContext* mInputContext;
-    mutable QScopedPointer<QPlatformAccessibility> mAccessibility;
-    QScopedPointer<QMirClientDebugExtension> mDebugExtension;
-    QScopedPointer<QMirClientScreenObserver> mScreenObserver;
-    QScopedPointer<QMirClientAppStateController> mAppStateController;
-    qreal mScaleFactor;
-
-    MirConnection *mMirConnection;
-
-    // Platform API stuff
-    UApplicationOptions* mOptions;
-    UApplicationDescription* mDesc;
-    UApplicationInstance* mInstance;
-
-    // EGL related
-    EGLDisplay mEglDisplay{EGL_NO_DISPLAY};
-    EGLNativeDisplayType mEglNativeDisplay;
-};
-
-#endif // QMIRCLIENTINTEGRATION_H
diff --git a/src/plugins/platforms/mirclient/qmirclientnativeinterface.cpp b/src/plugins/platforms/mirclient/qmirclientnativeinterface.cpp
deleted file mode 100644
index b85e6fedfa..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientnativeinterface.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-// Local
-#include "qmirclientnativeinterface.h"
-#include "qmirclientscreen.h"
-#include "qmirclientglcontext.h"
-#include "qmirclientwindow.h"
-
-// Qt
-#include <QtGui/private/qguiapplication_p.h>
-#include <QtGui/qopenglcontext.h>
-#include <QtGui/qscreen.h>
-#include <QtCore/QMap>
-
-class UbuntuResourceMap : public QMap<QByteArray, QMirClientNativeInterface::ResourceType>
-{
-public:
-    UbuntuResourceMap()
-        : QMap<QByteArray, QMirClientNativeInterface::ResourceType>() {
-        insert("egldisplay", QMirClientNativeInterface::EglDisplay);
-        insert("eglcontext", QMirClientNativeInterface::EglContext);
-        insert("nativeorientation", QMirClientNativeInterface::NativeOrientation);
-        insert("display", QMirClientNativeInterface::Display);
-        insert("mirconnection", QMirClientNativeInterface::MirConnection);
-        insert("mirsurface", QMirClientNativeInterface::MirSurface);
-        insert("scale", QMirClientNativeInterface::Scale);
-        insert("formfactor", QMirClientNativeInterface::FormFactor);
-    }
-};
-
-Q_GLOBAL_STATIC(UbuntuResourceMap, ubuntuResourceMap)
-
-QMirClientNativeInterface::QMirClientNativeInterface(const QMirClientClientIntegration *integration)
-    : mIntegration(integration)
-    , mGenericEventFilterType(QByteArrayLiteral("Event"))
-    , mNativeOrientation(nullptr)
-{
-}
-
-QMirClientNativeInterface::~QMirClientNativeInterface()
-{
-    delete mNativeOrientation;
-    mNativeOrientation = nullptr;
-}
-
-void* QMirClientNativeInterface::nativeResourceForIntegration(const QByteArray &resourceString)
-{
-    const QByteArray lowerCaseResource = resourceString.toLower();
-
-    if (!ubuntuResourceMap()->contains(lowerCaseResource)) {
-        return nullptr;
-    }
-
-    const ResourceType resourceType = ubuntuResourceMap()->value(lowerCaseResource);
-
-    if (resourceType == QMirClientNativeInterface::MirConnection) {
-        return mIntegration->mirConnection();
-    } else {
-        return nullptr;
-    }
-}
-
-void* QMirClientNativeInterface::nativeResourceForContext(
-    const QByteArray& resourceString, QOpenGLContext* context)
-{
-    if (!context)
-        return nullptr;
-
-    const QByteArray kLowerCaseResource = resourceString.toLower();
-
-    if (!ubuntuResourceMap()->contains(kLowerCaseResource))
-        return nullptr;
-
-    const ResourceType kResourceType = ubuntuResourceMap()->value(kLowerCaseResource);
-
-    if (kResourceType == QMirClientNativeInterface::EglContext)
-        return static_cast<QMirClientOpenGLContext*>(context->handle())->eglContext();
-    else
-        return nullptr;
-}
-
-void* QMirClientNativeInterface::nativeResourceForWindow(const QByteArray& resourceString, QWindow* window)
-{
-    const QByteArray kLowerCaseResource = resourceString.toLower();
-    if (!ubuntuResourceMap()->contains(kLowerCaseResource))
-        return NULL;
-    const ResourceType kResourceType = ubuntuResourceMap()->value(kLowerCaseResource);
-
-    switch (kResourceType) {
-    case EglDisplay:
-        return mIntegration->eglDisplay();
-    case NativeOrientation:
-        // Return the device's native screen orientation.
-        if (window) {
-            QMirClientScreen *ubuntuScreen = static_cast<QMirClientScreen*>(window->screen()->handle());
-            mNativeOrientation = new Qt::ScreenOrientation(ubuntuScreen->nativeOrientation());
-        } else {
-            QPlatformScreen *platformScreen = QGuiApplication::primaryScreen()->handle();
-            mNativeOrientation = new Qt::ScreenOrientation(platformScreen->nativeOrientation());
-        }
-        return mNativeOrientation;
-    case MirSurface:
-        if (window) {
-            auto ubuntuWindow = static_cast<QMirClientWindow*>(window->handle());
-            if (ubuntuWindow) {
-                return ubuntuWindow->mirSurface();
-            } else {
-                return nullptr;
-            }
-        } else {
-            return nullptr;
-        }
-    default:
-        return nullptr;
-    }
-}
-
-void* QMirClientNativeInterface::nativeResourceForScreen(const QByteArray& resourceString, QScreen* screen)
-{
-    const QByteArray kLowerCaseResource = resourceString.toLower();
-    if (!ubuntuResourceMap()->contains(kLowerCaseResource))
-        return NULL;
-    const ResourceType kResourceType = ubuntuResourceMap()->value(kLowerCaseResource);
-    if (!screen)
-        screen = QGuiApplication::primaryScreen();
-    auto ubuntuScreen = static_cast<QMirClientScreen*>(screen->handle());
-    if (kResourceType == QMirClientNativeInterface::Display) {
-        return mIntegration->eglNativeDisplay();
-    // Changes to the following properties are emitted via the QMirClientNativeInterface::screenPropertyChanged
-    // signal fired by QMirClientScreen. Connect to this signal for these properties updates.
-    // WARNING: code highly thread unsafe!
-    } else if (kResourceType == QMirClientNativeInterface::Scale) {
-        // In application code, read with:
-        //    float scale = *reinterpret_cast<float*>(nativeResourceForScreen("scale", screen()));
-        return &ubuntuScreen->mScale;
-    } else if (kResourceType == QMirClientNativeInterface::FormFactor) {
-        return &ubuntuScreen->mFormFactor;
-    } else
-        return NULL;
-}
-
-// Changes to these properties are emitted via the QMirClientNativeInterface::windowPropertyChanged
-// signal fired by QMirClientWindow. Connect to this signal for these properties updates.
-QVariantMap QMirClientNativeInterface::windowProperties(QPlatformWindow *window) const
-{
-    QVariantMap propertyMap;
-    auto w = static_cast<QMirClientWindow*>(window);
-    if (w) {
-        propertyMap.insert("scale", w->scale());
-        propertyMap.insert("formFactor", w->formFactor());
-    }
-    return propertyMap;
-}
-
-QVariant QMirClientNativeInterface::windowProperty(QPlatformWindow *window, const QString &name) const
-{
-    auto w = static_cast<QMirClientWindow*>(window);
-    if (!w) {
-        return QVariant();
-    }
-
-    if (name == QStringLiteral("scale")) {
-        return w->scale();
-    } else if (name == QStringLiteral("formFactor")) {
-        return w->formFactor();
-    } else {
-        return QVariant();
-    }
-}
-
-QVariant QMirClientNativeInterface::windowProperty(QPlatformWindow *window, const QString &name, const QVariant &defaultValue) const
-{
-    QVariant returnVal = windowProperty(window, name);
-    if (!returnVal.isValid()) {
-        return defaultValue;
-    } else {
-        return returnVal;
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientnativeinterface.h b/src/plugins/platforms/mirclient/qmirclientnativeinterface.h
deleted file mode 100644
index eb601de301..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientnativeinterface.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTNATIVEINTERFACE_H
-#define QMIRCLIENTNATIVEINTERFACE_H
-
-#include <qpa/qplatformnativeinterface.h>
-
-#include "qmirclientintegration.h"
-
-class QPlatformScreen;
-
-class QMirClientNativeInterface : public QPlatformNativeInterface {
-    Q_OBJECT
-public:
-    enum ResourceType { EglDisplay, EglContext, NativeOrientation, Display, MirConnection, MirSurface, Scale, FormFactor };
-
-    QMirClientNativeInterface(const QMirClientClientIntegration *integration);
-    ~QMirClientNativeInterface();
-
-    // QPlatformNativeInterface methods.
-    void* nativeResourceForIntegration(const QByteArray &resource) override;
-    void* nativeResourceForContext(const QByteArray& resourceString,
-                                   QOpenGLContext* context) override;
-    void* nativeResourceForWindow(const QByteArray& resourceString,
-                                  QWindow* window) override;
-    void* nativeResourceForScreen(const QByteArray& resourceString,
-                                  QScreen* screen) override;
-
-    QVariantMap windowProperties(QPlatformWindow *window) const override;
-    QVariant windowProperty(QPlatformWindow *window, const QString &name) const override;
-    QVariant windowProperty(QPlatformWindow *window, const QString &name, const QVariant &defaultValue) const override;
-
-    // New methods.
-    const QByteArray& genericEventFilterType() const { return mGenericEventFilterType; }
-
-Q_SIGNALS: // New signals
-    void screenPropertyChanged(QPlatformScreen *screen, const QString &propertyName);
-
-private:
-    const QMirClientClientIntegration *mIntegration;
-    const QByteArray mGenericEventFilterType;
-    Qt::ScreenOrientation* mNativeOrientation;
-};
-
-#endif // QMIRCLIENTNATIVEINTERFACE_H
diff --git a/src/plugins/platforms/mirclient/qmirclientplatformservices.cpp b/src/plugins/platforms/mirclient/qmirclientplatformservices.cpp
deleted file mode 100644
index 1ccd57fc28..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientplatformservices.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientplatformservices.h"
-
-#include <QUrl>
-
-#include <ubuntu/application/url_dispatcher/service.h>
-#include <ubuntu/application/url_dispatcher/session.h>
-
-bool QMirClientPlatformServices::openUrl(const QUrl &url)
-{
-    return callDispatcher(url);
-}
-
-bool QMirClientPlatformServices::openDocument(const QUrl &url)
-{
-    return callDispatcher(url);
-}
-
-bool QMirClientPlatformServices::callDispatcher(const QUrl &url)
-{
-    UAUrlDispatcherSession* session = ua_url_dispatcher_session();
-    if (!session)
-        return false;
-
-    ua_url_dispatcher_session_open(session, url.toEncoded().constData(), NULL, NULL);
-
-    free(session);
-
-    // We are returning true here because the other option
-    // is spawning a nested event loop and wait for the
-    // callback. But there is no guarantee on how fast
-    // the callback is going to be so we prefer to avoid the
-    // nested event loop. Long term plan is improve Qt API
-    // to support an async openUrl
-    return true;
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientplatformservices.h b/src/plugins/platforms/mirclient/qmirclientplatformservices.h
deleted file mode 100644
index a1cd5758ca..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientplatformservices.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTPLATFORMSERVICES_H
-#define QMIRCLIENTPLATFORMSERVICES_H
-
-#include <qpa/qplatformservices.h>
-#include <QtFontDatabaseSupport/private/qgenericunixfontdatabase_p.h>
-#include <QtEventDispatcherSupport/private/qgenericunixeventdispatcher_p.h>
-
-class QMirClientPlatformServices : public QPlatformServices {
-public:
-    bool openUrl(const QUrl &url) override;
-    bool openDocument(const QUrl &url) override;
-
-private:
-    bool callDispatcher(const QUrl &url);
-};
-
-#endif // QMIRCLIENTPLATFORMSERVICES_H
diff --git a/src/plugins/platforms/mirclient/qmirclientplugin.cpp b/src/plugins/platforms/mirclient/qmirclientplugin.cpp
deleted file mode 100644
index fc44edfe40..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientplugin.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientplugin.h"
-#include "qmirclientintegration.h"
-#include "qmirclientlogging.h"
-
-Q_LOGGING_CATEGORY(mirclient, "qt.qpa.mirclient", QtWarningMsg)
-
-QPlatformIntegration *QMirClientIntegrationPlugin::create(const QString &system,
-                                                          const QStringList &/*paramList*/,
-                                                          int &argc, char **argv)
-{
-    if (system.toLower() == QLatin1String("mirclient")) {
-        return new QMirClientClientIntegration(argc, argv);
-    } else {
-        return 0;
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientplugin.h b/src/plugins/platforms/mirclient/qmirclientplugin.h
deleted file mode 100644
index 207d97b5af..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientplugin.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTPLUGIN_H
-#define QMIRCLIENTPLUGIN_H
-
-#include <qpa/qplatformintegrationplugin.h>
-
-class QMirClientIntegrationPlugin : public QPlatformIntegrationPlugin
-{
-    Q_OBJECT
-    Q_PLUGIN_METADATA(IID QPlatformIntegrationFactoryInterface_iid FILE "mirclient.json")
-
-public:
-    QPlatformIntegration *create(const QString &system, const QStringList &paramList,
-                                 int &argc, char **argv) override;
-};
-
-#endif // QMIRCLIENTPLUGIN_H
diff --git a/src/plugins/platforms/mirclient/qmirclientscreen.cpp b/src/plugins/platforms/mirclient/qmirclientscreen.cpp
deleted file mode 100644
index cc8db830aa..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientscreen.cpp
+++ /dev/null
@@ -1,262 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-// local
-#include "qmirclientscreen.h"
-#include "qmirclientlogging.h"
-#include "qmirclientorientationchangeevent_p.h"
-#include "qmirclientnativeinterface.h"
-
-#include <mir_toolkit/mir_client_library.h>
-
-// Qt
-#include <QGuiApplication>
-#include <QtCore/qmath.h>
-#include <QScreen>
-#include <QThread>
-#include <qpa/qwindowsysteminterface.h>
-#include <QtEglSupport/private/qeglconvenience_p.h>
-
-#include <memory>
-
-static const int overrideDevicePixelRatio = qgetenv("QT_DEVICE_PIXEL_RATIO").toInt();
-
-static const char *orientationToStr(Qt::ScreenOrientation orientation) {
-    switch (orientation) {
-        case Qt::PrimaryOrientation:
-            return "primary";
-        case Qt::PortraitOrientation:
-            return "portrait";
-        case Qt::LandscapeOrientation:
-            return "landscape";
-        case Qt::InvertedPortraitOrientation:
-            return "inverted portrait";
-        case Qt::InvertedLandscapeOrientation:
-            return "inverted landscape";
-    }
-    Q_UNREACHABLE();
-}
-
-const QEvent::Type OrientationChangeEvent::mType =
-        static_cast<QEvent::Type>(QEvent::registerEventType());
-
-
-QMirClientScreen::QMirClientScreen(const MirOutput *output, MirConnection *connection)
-    : mDevicePixelRatio(1.0)
-    , mFormat(QImage::Format_RGB32)
-    , mDepth(32)
-    , mDpi{0}
-    , mFormFactor{mir_form_factor_unknown}
-    , mScale{1.0}
-    , mOutputId(0)
-    , mCursor(connection)
-{
-    setMirOutput(output);
-}
-
-QMirClientScreen::~QMirClientScreen()
-{
-}
-
-void QMirClientScreen::customEvent(QEvent* event) {
-    Q_ASSERT(QThread::currentThread() == thread());
-
-    OrientationChangeEvent* oReadingEvent = static_cast<OrientationChangeEvent*>(event);
-    switch (oReadingEvent->mOrientation) {
-        case OrientationChangeEvent::LeftUp: {
-            mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ?
-                        Qt::InvertedPortraitOrientation : Qt::LandscapeOrientation;
-            break;
-        }
-        case OrientationChangeEvent::TopUp: {
-            mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ?
-                        Qt::LandscapeOrientation : Qt::PortraitOrientation;
-            break;
-        }
-        case OrientationChangeEvent::RightUp: {
-            mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ?
-                        Qt::PortraitOrientation : Qt::InvertedLandscapeOrientation;
-            break;
-        }
-        case OrientationChangeEvent::TopDown: {
-            mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ?
-                        Qt::InvertedLandscapeOrientation : Qt::InvertedPortraitOrientation;
-            break;
-        }
-    }
-
-    // Raise the event signal so that client apps know the orientation changed
-    qCDebug(mirclient, "QMirClientScreen::customEvent - handling orientation change to %s", orientationToStr(mCurrentOrientation));
-    QWindowSystemInterface::handleScreenOrientationChange(screen(), mCurrentOrientation);
-}
-
-void QMirClientScreen::handleWindowSurfaceResize(int windowWidth, int windowHeight)
-{
-    if ((windowWidth > windowHeight && mGeometry.width() < mGeometry.height())
-     || (windowWidth < windowHeight && mGeometry.width() > mGeometry.height())) {
-
-        // The window aspect ratio differ's from the screen one. This means that
-        // unity8 has rotated the window in its scene.
-        // As there's no way to express window rotation in Qt's API, we have
-        // Flip QScreen's dimensions so that orientation properties match
-        // (primaryOrientation particularly).
-        // FIXME: This assumes a phone scenario. Won't work, or make sense,
-        //        on the desktop
-
-        QRect currGeometry = mGeometry;
-        mGeometry.setWidth(currGeometry.height());
-        mGeometry.setHeight(currGeometry.width());
-
-        qCDebug(mirclient, "QMirClientScreen::handleWindowSurfaceResize - new screen geometry (w=%d, h=%d)",
-            mGeometry.width(), mGeometry.height());
-        QWindowSystemInterface::handleScreenGeometryChange(screen(),
-                                                           mGeometry /* newGeometry */,
-                                                           mGeometry /* newAvailableGeometry */);
-
-        if (mGeometry.width() < mGeometry.height()) {
-            mCurrentOrientation = Qt::PortraitOrientation;
-        } else {
-            mCurrentOrientation = Qt::LandscapeOrientation;
-        }
-        qCDebug(mirclient, "QMirClientScreen::handleWindowSurfaceResize - new orientation %s",orientationToStr(mCurrentOrientation));
-        QWindowSystemInterface::handleScreenOrientationChange(screen(), mCurrentOrientation);
-    }
-}
-
-void QMirClientScreen::setMirOutput(const MirOutput *output)
-{
-    // Physical screen size (in mm)
-    mPhysicalSize.setWidth(mir_output_get_physical_width_mm(output));
-    mPhysicalSize.setHeight(mir_output_get_physical_height_mm(output));
-
-    // Pixel Format
-//    mFormat = qImageFormatFromMirPixelFormat(mir_output_get_current_pixel_format(output)); // GERRY: TODO
-
-    // Pixel depth
-    mDepth = 8 * MIR_BYTES_PER_PIXEL(mir_output_get_current_pixel_format(output));
-
-    // Mode = Resolution & refresh rate
-    const MirOutputMode *mode = mir_output_get_current_mode(output);
-    mNativeGeometry.setX(mir_output_get_position_x(output));
-    mNativeGeometry.setY(mir_output_get_position_y(output));
-    mNativeGeometry.setWidth(mir_output_mode_get_width(mode));
-    mNativeGeometry.setHeight(mir_output_mode_get_height(mode));
-
-    mRefreshRate = mir_output_mode_get_refresh_rate(mode);
-
-    // UI scale & DPR
-    mScale = mir_output_get_scale_factor(output);
-    if (overrideDevicePixelRatio > 0) {
-        mDevicePixelRatio = overrideDevicePixelRatio;
-    } else {
-        mDevicePixelRatio = 1.0; // FIXME - need to determine suitable DPR for the specified scale
-    }
-
-    mFormFactor = mir_output_get_form_factor(output);
-
-    mOutputId = mir_output_get_id(output);
-
-    mGeometry.setX(mNativeGeometry.x());
-    mGeometry.setY(mNativeGeometry.y());
-    mGeometry.setWidth(mNativeGeometry.width());
-    mGeometry.setHeight(mNativeGeometry.height());
-
-    // Set the default orientation based on the initial screen dimensions.
-    mNativeOrientation = (mGeometry.width() >= mGeometry.height()) ? Qt::LandscapeOrientation : Qt::PortraitOrientation;
-
-    // If it's a landscape device (i.e. some tablets), start in landscape, otherwise portrait
-    mCurrentOrientation = (mNativeOrientation == Qt::LandscapeOrientation) ? Qt::LandscapeOrientation : Qt::PortraitOrientation;
-}
-
-void QMirClientScreen::updateMirOutput(const MirOutput *output)
-{
-    auto oldRefreshRate = mRefreshRate;
-    auto oldScale = mScale;
-    auto oldFormFactor = mFormFactor;
-    auto oldGeometry = mGeometry;
-
-    setMirOutput(output);
-
-    // Emit change signals in particular order
-    if (oldGeometry != mGeometry) {
-        QWindowSystemInterface::handleScreenGeometryChange(screen(),
-                                                           mGeometry /* newGeometry */,
-                                                           mGeometry /* newAvailableGeometry */);
-    }
-
-    if (!qFuzzyCompare(mRefreshRate, oldRefreshRate)) {
-        QWindowSystemInterface::handleScreenRefreshRateChange(screen(), mRefreshRate);
-    }
-
-    auto nativeInterface = static_cast<QMirClientNativeInterface *>(qGuiApp->platformNativeInterface());
-    if (!qFuzzyCompare(mScale, oldScale)) {
-        nativeInterface->screenPropertyChanged(this, QStringLiteral("scale"));
-    }
-    if (mFormFactor != oldFormFactor) {
-        nativeInterface->screenPropertyChanged(this, QStringLiteral("formFactor"));
-    }
-}
-
-void QMirClientScreen::setAdditionalMirDisplayProperties(float scale, MirFormFactor formFactor, int dpi)
-{
-    if (mDpi != dpi) {
-        mDpi = dpi;
-        QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(screen(), dpi, dpi);
-    }
-
-    auto nativeInterface = static_cast<QMirClientNativeInterface *>(qGuiApp->platformNativeInterface());
-    if (!qFuzzyCompare(mScale, scale)) {
-        mScale = scale;
-        nativeInterface->screenPropertyChanged(this, QStringLiteral("scale"));
-    }
-    if (mFormFactor != formFactor) {
-        mFormFactor = formFactor;
-        nativeInterface->screenPropertyChanged(this, QStringLiteral("formFactor"));
-    }
-}
-
-QDpi QMirClientScreen::logicalDpi() const
-{
-    if (mDpi > 0) {
-        return QDpi(mDpi, mDpi);
-    } else {
-        return QPlatformScreen::logicalDpi();
-    }
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientscreen.h b/src/plugins/platforms/mirclient/qmirclientscreen.h
deleted file mode 100644
index b31cba1964..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientscreen.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTSCREEN_H
-#define QMIRCLIENTSCREEN_H
-
-#include <qpa/qplatformscreen.h>
-#include <QSurfaceFormat>
-
-#include <mir_toolkit/common.h> // just for MirFormFactor enum
-
-#include "qmirclientcursor.h"
-
-struct MirConnection;
-struct MirOutput;
-
-class QMirClientScreen : public QObject, public QPlatformScreen
-{
-    Q_OBJECT
-public:
-    QMirClientScreen(const MirOutput *output, MirConnection *connection);
-    virtual ~QMirClientScreen();
-
-    // QPlatformScreen methods.
-    QImage::Format format() const override { return mFormat; }
-    int depth() const override { return mDepth; }
-    QRect geometry() const override { return mGeometry; }
-    QRect availableGeometry() const override { return mGeometry; }
-    QSizeF physicalSize() const override { return mPhysicalSize; }
-    qreal devicePixelRatio() const override { return mDevicePixelRatio; }
-    QDpi logicalDpi() const override;
-    Qt::ScreenOrientation nativeOrientation() const override { return mNativeOrientation; }
-    Qt::ScreenOrientation orientation() const override { return mNativeOrientation; }
-    QPlatformCursor *cursor() const override { return const_cast<QMirClientCursor*>(&mCursor); }
-
-    // Additional Screen properties from Mir
-    int mirOutputId() const { return mOutputId; }
-    MirFormFactor formFactor() const { return mFormFactor; }
-    float scale() const { return mScale; }
-
-    // Internally used methods
-    void updateMirOutput(const MirOutput *output);
-    void setAdditionalMirDisplayProperties(float scale, MirFormFactor formFactor, int dpi);
-    void handleWindowSurfaceResize(int width, int height);
-
-    // QObject methods.
-    void customEvent(QEvent* event) override;
-
-private:
-    void setMirOutput(const MirOutput *output);
-
-    QRect mGeometry, mNativeGeometry;
-    QSizeF mPhysicalSize;
-    qreal mDevicePixelRatio;
-    Qt::ScreenOrientation mNativeOrientation;
-    Qt::ScreenOrientation mCurrentOrientation;
-    QImage::Format mFormat;
-    int mDepth;
-    int mDpi;
-    qreal mRefreshRate;
-    MirFormFactor mFormFactor;
-    float mScale;
-    int mOutputId;
-    QMirClientCursor mCursor;
-
-    friend class QMirClientNativeInterface;
-};
-
-#endif // QMIRCLIENTSCREEN_H
diff --git a/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp b/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp
deleted file mode 100644
index 792aeca351..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp
+++ /dev/null
@@ -1,161 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientscreenobserver.h"
-#include "qmirclientscreen.h"
-#include "qmirclientwindow.h"
-#include "qmirclientlogging.h"
-
-// Qt
-#include <QMetaObject>
-#include <QPointer>
-
-// Mir
-#include <mirclient/mir_toolkit/mir_connection.h>
-#include <mirclient/mir_toolkit/mir_display_configuration.h>
-
-#include <memory>
-
-namespace {
-    static void displayConfigurationChangedCallback(MirConnection */*connection*/, void* context)
-    {
-        ASSERT(context != NULL);
-        QMirClientScreenObserver *observer = static_cast<QMirClientScreenObserver *>(context);
-        QMetaObject::invokeMethod(observer, "update");
-    }
-
-    const char *mirFormFactorToStr(MirFormFactor formFactor)
-    {
-        switch (formFactor) {
-        case mir_form_factor_unknown: return "unknown";
-        case mir_form_factor_phone: return "phone";
-        case mir_form_factor_tablet: return "tablet";
-        case mir_form_factor_monitor: return "monitor";
-        case mir_form_factor_tv: return "tv";
-        case mir_form_factor_projector: return "projector";
-        }
-        Q_UNREACHABLE();
-    }
-} // anonymous namespace
-
-QMirClientScreenObserver::QMirClientScreenObserver(MirConnection *mirConnection)
-    : mMirConnection(mirConnection)
-{
-    mir_connection_set_display_config_change_callback(mirConnection, ::displayConfigurationChangedCallback, this);
-    update();
-}
-
-void QMirClientScreenObserver::update()
-{
-    // Wrap MirDisplayConfiguration to always delete when out of scope
-    auto configDeleter = [](MirDisplayConfig *config) { mir_display_config_release(config); };
-    using configUp = std::unique_ptr<MirDisplayConfig, decltype(configDeleter)>;
-    configUp displayConfig(mir_connection_create_display_configuration(mMirConnection), configDeleter);
-
-    // Mir only tells us something changed, it is up to us to figure out what.
-    QList<QMirClientScreen*> newScreenList;
-    QList<QMirClientScreen*> oldScreenList = mScreenList;
-    mScreenList.clear();
-
-    for (int i = 0; i < mir_display_config_get_num_outputs(displayConfig.get()); i++) {
-        const MirOutput *output = mir_display_config_get_output(displayConfig.get(), i);
-        if (mir_output_is_enabled(output)) {
-            QMirClientScreen *screen = findScreenWithId(oldScreenList, mir_output_get_id(output));
-            if (screen) { // we've already set up this display before
-                screen->updateMirOutput(output);
-                oldScreenList.removeAll(screen);
-            } else {
-                // new display, so create QMirClientScreen for it
-                screen = new QMirClientScreen(output, mMirConnection);
-                newScreenList.append(screen);
-                qCDebug(mirclient) << "Added Screen with id" << mir_output_get_id(output)
-                                         << "and geometry" << screen->geometry();
-            }
-            mScreenList.append(screen);
-        }
-    }
-
-    // Announce old & unused Screens, should be deleted by the slot
-    Q_FOREACH (const auto screen, oldScreenList) {
-        Q_EMIT screenRemoved(screen);
-    }
-
-    /*
-     * Mir's MirDisplayOutput does not include formFactor or scale for some reason, but Qt
-     * will want that information on creating the QScreen. Only way we get that info is when
-     * Mir positions a Window on that Screen. See "handleScreenPropertiesChange" method
-     */
-
-    // Announce new Screens
-    Q_FOREACH (const auto screen, newScreenList) {
-        Q_EMIT screenAdded(screen);
-    }
-
-    qCDebug(mirclient) << "=======================================";
-    for (auto screen: mScreenList) {
-        qCDebug(mirclient) << screen << "- id:" << screen->mirOutputId()
-                                 << "geometry:" << screen->geometry()
-                                 << "form factor:" << mirFormFactorToStr(screen->formFactor())
-                                 << "scale:" << screen->scale();
-    }
-    qCDebug(mirclient) << "=======================================";
-}
-
-QMirClientScreen *QMirClientScreenObserver::findScreenWithId(int id)
-{
-    return findScreenWithId(mScreenList, id);
-}
-
-QMirClientScreen *QMirClientScreenObserver::findScreenWithId(const QList<QMirClientScreen *> &list, int id)
-{
-    Q_FOREACH (const auto screen, list) {
-        if (screen->mirOutputId() == id) {
-            return screen;
-        }
-    }
-    return nullptr;
-}
-
-void QMirClientScreenObserver::handleScreenPropertiesChange(QMirClientScreen *screen, int dpi,
-                                                        MirFormFactor formFactor, float scale)
-{
-    screen->setAdditionalMirDisplayProperties(scale, formFactor, dpi);
-}
-
diff --git a/src/plugins/platforms/mirclient/qmirclienttheme.h b/src/plugins/platforms/mirclient/qmirclienttheme.h
deleted file mode 100644
index 4bab1d0ee0..0000000000
--- a/src/plugins/platforms/mirclient/qmirclienttheme.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTTHEME_H
-#define QMIRCLIENTTHEME_H
-
-#include <QtThemeSupport/private/qgenericunixthemes_p.h>
-
-class QMirClientTheme : public QGenericUnixTheme
-{
-public:
-    static const char* name;
-    QMirClientTheme();
-    virtual ~QMirClientTheme();
-
-    // From QPlatformTheme
-    QVariant themeHint(ThemeHint hint) const override;
-};
-
-#endif // QMIRCLIENTTHEME_H
diff --git a/src/plugins/platforms/mirclient/qmirclientwindow.cpp b/src/plugins/platforms/mirclient/qmirclientwindow.cpp
deleted file mode 100644
index decd21516e..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientwindow.cpp
+++ /dev/null
@@ -1,968 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-// Local
-#include "qmirclientwindow.h"
-#include "qmirclientdebugextension.h"
-#include "qmirclientnativeinterface.h"
-#include "qmirclientinput.h"
-#include "qmirclientintegration.h"
-#include "qmirclientscreen.h"
-#include "qmirclientlogging.h"
-
-#include <mir_toolkit/mir_client_library.h>
-#include <mir_toolkit/version.h>
-
-// Qt
-#include <qpa/qwindowsysteminterface.h>
-#include <QMutexLocker>
-#include <QSize>
-#include <QtMath>
-#include <QtEglSupport/private/qeglconvenience_p.h>
-
-// Platform API
-#include <ubuntu/application/instance.h>
-
-#include <EGL/egl.h>
-
-Q_LOGGING_CATEGORY(mirclientBufferSwap, "qt.qpa.mirclient.bufferSwap", QtWarningMsg)
-
-namespace
-{
-const Qt::WindowType LowChromeWindowHint = (Qt::WindowType)0x00800000;
-
-// FIXME: this used to be defined by platform-api, but it's been removed in v3. Change ubuntu-keyboard to use
-// a different enum for window roles.
-enum UAUiWindowRole {
-    U_MAIN_ROLE = 1,
-    U_DASH_ROLE,
-    U_INDICATOR_ROLE,
-    U_NOTIFICATIONS_ROLE,
-    U_GREETER_ROLE,
-    U_LAUNCHER_ROLE,
-    U_ON_SCREEN_KEYBOARD_ROLE,
-    U_SHUTDOWN_DIALOG_ROLE,
-};
-
-struct MirSpecDeleter
-{
-    void operator()(MirSurfaceSpec *spec) { mir_surface_spec_release(spec); }
-};
-
-using Spec = std::unique_ptr<MirSurfaceSpec, MirSpecDeleter>;
-
-EGLNativeWindowType nativeWindowFor(MirSurface *surf)
-{
-    auto stream = mir_surface_get_buffer_stream(surf);
-    return reinterpret_cast<EGLNativeWindowType>(mir_buffer_stream_get_egl_native_window(stream));
-}
-
-const char *qtWindowStateToStr(Qt::WindowState state)
-{
-    switch (state) {
-    case Qt::WindowNoState:
-        return "NoState";
-    case Qt::WindowFullScreen:
-        return "FullScreen";
-    case Qt::WindowMaximized:
-        return "Maximized";
-    case Qt::WindowMinimized:
-        return "Minimized";
-    case Qt::WindowActive:
-        return "Active";
-    }
-    Q_UNREACHABLE();
-}
-
-const char *mirSurfaceStateToStr(MirSurfaceState surfaceState)
-{
-    switch (surfaceState) {
-    case mir_surface_state_unknown: return "unknown";
-    case mir_surface_state_restored: return "restored";
-    case mir_surface_state_minimized: return "minimized";
-    case mir_surface_state_maximized: return "vertmaximized";
-    case mir_surface_state_vertmaximized: return "vertmaximized";
-    case mir_surface_state_fullscreen: return "fullscreen";
-    case mir_surface_state_horizmaximized: return "horizmaximized";
-    case mir_surface_state_hidden: return "hidden";
-    case mir_surface_states: Q_UNREACHABLE();
-    }
-    Q_UNREACHABLE();
-}
-
-const char *mirPixelFormatToStr(MirPixelFormat pixelFormat)
-{
-    switch (pixelFormat) {
-    case mir_pixel_format_invalid:   return "invalid";
-    case mir_pixel_format_abgr_8888: return "ABGR8888";
-    case mir_pixel_format_xbgr_8888: return "XBGR8888";
-    case mir_pixel_format_argb_8888: return "ARGB8888";
-    case mir_pixel_format_xrgb_8888: return "XRGB8888";
-    case mir_pixel_format_bgr_888:   return "BGR888";
-    case mir_pixel_format_rgb_888:   return "RGB888";
-    case mir_pixel_format_rgb_565:   return "RGB565";
-    case mir_pixel_format_rgba_5551: return "RGBA5551";
-    case mir_pixel_format_rgba_4444: return "RGBA4444";
-    case mir_pixel_formats:          Q_UNREACHABLE();
-    }
-    Q_UNREACHABLE();
-}
-
-const char *mirSurfaceTypeToStr(MirSurfaceType type)
-{
-    switch (type) {
-    case mir_surface_type_normal:       return "Normal";        /**< AKA "regular"                   */
-    case mir_surface_type_utility:      return "Utility";       /**< AKA "floating regular"          */
-    case mir_surface_type_dialog:       return "Dialog";
-    case mir_surface_type_gloss:        return "Gloss";
-    case mir_surface_type_freestyle:    return "Freestyle";
-    case mir_surface_type_menu:         return "Menu";
-    case mir_surface_type_inputmethod:  return "Input Method";  /**< AKA "OSK" or handwriting etc.   */
-    case mir_surface_type_satellite:    return "Satellite";     /**< AKA "toolbox"/"toolbar"         */
-    case mir_surface_type_tip:          return "Tip";           /**< AKA "tooltip"                   */
-    case mir_surface_types:             Q_UNREACHABLE();
-    }
-    return "";
-}
-
-MirSurfaceState qtWindowStateToMirSurfaceState(Qt::WindowState state)
-{
-    switch (state) {
-    case Qt::WindowNoState:
-    case Qt::WindowActive:
-        return mir_surface_state_restored;
-    case Qt::WindowFullScreen:
-        return mir_surface_state_fullscreen;
-    case Qt::WindowMaximized:
-        return mir_surface_state_maximized;
-    case Qt::WindowMinimized:
-        return mir_surface_state_minimized;
-    }
-    return mir_surface_state_unknown; // should never be reached
-}
-
-MirSurfaceType qtWindowTypeToMirSurfaceType(Qt::WindowType type)
-{
-    switch (type & Qt::WindowType_Mask) {
-    case Qt::Dialog:
-        return mir_surface_type_dialog;
-    case Qt::Sheet:
-    case Qt::Drawer:
-        return mir_surface_type_utility;
-    case Qt::Popup:
-    case Qt::Tool:
-        return mir_surface_type_menu;
-    case Qt::ToolTip:
-        return mir_surface_type_tip;
-    case Qt::SplashScreen:
-        return mir_surface_type_freestyle;
-    case Qt::Window:
-    default:
-        return mir_surface_type_normal;
-    }
-}
-
-WId makeId()
-{
-    static int id = 1;
-    return id++;
-}
-
-UAUiWindowRole roleFor(QWindow *window)
-{
-    QVariant roleVariant = window->property("role");
-    if (!roleVariant.isValid())
-        return U_MAIN_ROLE;
-
-    uint role = roleVariant.toUInt();
-    if (role < U_MAIN_ROLE || role > U_SHUTDOWN_DIALOG_ROLE)
-        return U_MAIN_ROLE;
-
-    return static_cast<UAUiWindowRole>(role);
-}
-
-QMirClientWindow *transientParentFor(QWindow *window)
-{
-    QWindow *parent = window->transientParent();
-    return parent ? static_cast<QMirClientWindow *>(parent->handle()) : nullptr;
-}
-
-bool requiresParent(const MirSurfaceType type)
-{
-    switch (type) {
-    case mir_surface_type_dialog: //FIXME - not quite what the specification dictates, but is what Mir's api dictates
-    case mir_surface_type_utility:
-    case mir_surface_type_gloss:
-    case mir_surface_type_menu:
-    case mir_surface_type_satellite:
-    case mir_surface_type_tip:
-        return true;
-    default:
-        return false;
-    }
-}
-
-bool requiresParent(const Qt::WindowType type)
-{
-    return requiresParent(qtWindowTypeToMirSurfaceType(type));
-}
-
-bool isMovable(const Qt::WindowType type)
-{
-    auto mirType = qtWindowTypeToMirSurfaceType(type);
-    switch (mirType) {
-    case mir_surface_type_menu:
-    case mir_surface_type_tip:
-        return true;
-    default:
-        return false;
-    }
-}
-
-Spec makeSurfaceSpec(QWindow *window, MirPixelFormat pixelFormat, QMirClientWindow *parentWindowHandle,
-                     MirConnection *connection)
-{
-    const auto geometry = window->geometry();
-    const int width = geometry.width() > 0 ? geometry.width() : 1;
-    const int height = geometry.height() > 0 ? geometry.height() : 1;
-    auto type = qtWindowTypeToMirSurfaceType(window->type());
-
-    if (U_ON_SCREEN_KEYBOARD_ROLE == roleFor(window)) {
-        type = mir_surface_type_inputmethod;
-    }
-
-    MirRectangle location{geometry.x(), geometry.y(), 0, 0};
-    MirSurface *parent = nullptr;
-    if (parentWindowHandle) {
-        parent = parentWindowHandle->mirSurface();
-        // Qt uses absolute positioning, but Mir positions surfaces relative to parent.
-        location.top  -= parentWindowHandle->geometry().top();
-        location.left -= parentWindowHandle->geometry().left();
-    }
-
-    Spec spec;
-
-    switch (type) {
-    case mir_surface_type_menu:
-        spec = Spec{mir_connection_create_spec_for_menu(connection, width, height, pixelFormat, parent,
-                    &location, mir_edge_attachment_any)};
-        break;
-    case mir_surface_type_dialog:
-        spec = Spec{mir_connection_create_spec_for_modal_dialog(connection, width, height, pixelFormat, parent)};
-        break;
-    case mir_surface_type_utility:
-        spec = Spec{mir_connection_create_spec_for_dialog(connection, width, height, pixelFormat)};
-        break;
-    case mir_surface_type_tip:
-#if MIR_CLIENT_VERSION < MIR_VERSION_NUMBER(3, 4, 0)
-        spec = Spec{mir_connection_create_spec_for_tooltip(connection, width, height, pixelFormat, parent,
-                    &location)};
-#else
-        spec = Spec{mir_connection_create_spec_for_tip(connection, width, height, pixelFormat, parent,
-                    &location, mir_edge_attachment_any)};
-#endif
-        break;
-    case mir_surface_type_inputmethod:
-        spec = Spec{mir_connection_create_spec_for_input_method(connection, width, height, pixelFormat)};
-        break;
-    default:
-        spec = Spec{mir_connection_create_spec_for_normal_surface(connection, width, height, pixelFormat)};
-        break;
-    }
-
-    qCDebug(mirclient, "makeSurfaceSpec(window=%p): %s spec (type=0x%x, position=(%d, %d)px, size=(%dx%d)px)",
-            window, mirSurfaceTypeToStr(type), window->type(), location.left, location.top, width, height);
-
-     return std::move(spec);
-}
-
-void setSizingConstraints(MirSurfaceSpec *spec, const QSize& minSize, const QSize& maxSize, const QSize& increment)
-{
-    mir_surface_spec_set_min_width(spec, minSize.width());
-    mir_surface_spec_set_min_height(spec, minSize.height());
-    if (maxSize.width() >= minSize.width()) {
-        mir_surface_spec_set_max_width(spec, maxSize.width());
-    }
-    if (maxSize.height() >= minSize.height()) {
-        mir_surface_spec_set_max_height(spec, maxSize.height());
-    }
-    if (increment.width() > 0) {
-        mir_surface_spec_set_width_increment(spec, increment.width());
-    }
-    if (increment.height() > 0) {
-        mir_surface_spec_set_height_increment(spec, increment.height());
-    }
-}
-
-MirSurface *createMirSurface(QWindow *window, int mirOutputId, QMirClientWindow *parentWindowHandle,
-                             MirPixelFormat pixelFormat, MirConnection *connection,
-                             mir_surface_event_callback inputCallback, void *inputContext)
-{
-    auto spec = makeSurfaceSpec(window, pixelFormat, parentWindowHandle, connection);
-
-    // Install event handler as early as possible
-    mir_surface_spec_set_event_handler(spec.get(), inputCallback, inputContext);
-
-    const auto title = window->title().toUtf8();
-    mir_surface_spec_set_name(spec.get(), title.constData());
-
-    setSizingConstraints(spec.get(), window->minimumSize(), window->maximumSize(), window->sizeIncrement());
-
-    if (window->windowState() == Qt::WindowFullScreen) {
-        mir_surface_spec_set_fullscreen_on_output(spec.get(), mirOutputId);
-    }
-
-    if (window->flags() & LowChromeWindowHint) {
-        mir_surface_spec_set_shell_chrome(spec.get(), mir_shell_chrome_low);
-    }
-
-    if (!window->isVisible()) {
-        mir_surface_spec_set_state(spec.get(), mir_surface_state_hidden);
-    }
-
-    auto surface = mir_surface_create_sync(spec.get());
-    Q_ASSERT(mir_surface_is_valid(surface));
-    return surface;
-}
-
-QMirClientWindow *getParentIfNecessary(QWindow *window, QMirClientInput *input)
-{
-    QMirClientWindow *parentWindowHandle = nullptr;
-    if (requiresParent(window->type())) {
-        parentWindowHandle = transientParentFor(window);
-        if (parentWindowHandle == nullptr) {
-            // NOTE: Mir requires this surface have a parent. Try using the last surface to receive input as that will
-            // most likely be the one that caused this surface to be created
-            parentWindowHandle = input->lastInputWindow();
-        }
-    }
-    return parentWindowHandle;
-}
-
-MirPixelFormat disableAlphaBufferIfPossible(MirPixelFormat pixelFormat)
-{
-    switch (pixelFormat) {
-    case mir_pixel_format_abgr_8888:
-        return mir_pixel_format_xbgr_8888;
-    case mir_pixel_format_argb_8888:
-        return mir_pixel_format_xrgb_8888;
-    default: // can do nothing, leave it alone
-        return pixelFormat;
-    }
-}
-} //namespace
-
-
-
-class UbuntuSurface
-{
-public:
-    UbuntuSurface(QMirClientWindow *platformWindow, EGLDisplay display, QMirClientInput *input, MirConnection *connection);
-    ~UbuntuSurface();
-
-    UbuntuSurface(const UbuntuSurface &) = delete;
-    UbuntuSurface& operator=(const UbuntuSurface &) = delete;
-
-    void updateGeometry(const QRect &newGeometry);
-    void updateTitle(const QString& title);
-    void setSizingConstraints(const QSize& minSize, const QSize& maxSize, const QSize& increment);
-
-    void onSwapBuffersDone();
-    void handleSurfaceResized(int width, int height);
-    int needsRepaint() const;
-
-    MirSurfaceState state() const { return mir_surface_get_state(mMirSurface); }
-    void setState(MirSurfaceState state);
-
-    MirSurfaceType type() const { return mir_surface_get_type(mMirSurface); }
-
-    void setShellChrome(MirShellChrome shellChrome);
-
-    EGLSurface eglSurface() const { return mEglSurface; }
-    MirSurface *mirSurface() const { return mMirSurface; }
-
-    void setSurfaceParent(MirSurface*);
-    bool hasParent() const { return mParented; }
-
-    QSurfaceFormat format() const { return mFormat; }
-
-    bool mNeedsExposeCatchup;
-
-    QString persistentSurfaceId();
-
-private:
-    static void surfaceEventCallback(MirSurface* surface, const MirEvent *event, void* context);
-    void postEvent(const MirEvent *event);
-
-    QWindow * const mWindow;
-    QMirClientWindow * const mPlatformWindow;
-    QMirClientInput * const mInput;
-    MirConnection * const mConnection;
-    QMirClientWindow * mParentWindowHandle{nullptr};
-
-    MirSurface* mMirSurface;
-    const EGLDisplay mEglDisplay;
-    EGLSurface mEglSurface;
-
-    bool mNeedsRepaint;
-    bool mParented;
-    QSize mBufferSize;
-    QSurfaceFormat mFormat;
-    MirPixelFormat mPixelFormat;
-
-    QMutex mTargetSizeMutex;
-    QSize mTargetSize;
-    MirShellChrome mShellChrome;
-    QString mPersistentIdStr;
-};
-
-UbuntuSurface::UbuntuSurface(QMirClientWindow *platformWindow, EGLDisplay display, QMirClientInput *input, MirConnection *connection)
-    : mWindow(platformWindow->window())
-    , mPlatformWindow(platformWindow)
-    , mInput(input)
-    , mConnection(connection)
-    , mEglDisplay(display)
-    , mNeedsRepaint(false)
-    , mParented(mWindow->transientParent() || mWindow->parent())
-    , mFormat(mWindow->requestedFormat())
-    , mShellChrome(mWindow->flags() & LowChromeWindowHint ? mir_shell_chrome_low : mir_shell_chrome_normal)
-{
-    // Have Qt choose most suitable EGLConfig for the requested surface format, and update format to reflect it
-    EGLConfig config = q_configFromGLFormat(display, mFormat, true);
-    if (config == 0) {
-        // Older Intel Atom-based devices only support OpenGL 1.4 compatibility profile but by default
-        // QML asks for at least OpenGL 2.0. The XCB GLX backend ignores this request and returns a
-        // 1.4 context, but the XCB EGL backend tries to honor it, and fails. The 1.4 context appears to
-        // have sufficient capabilities on MESA (i915) to render correctly however. So reduce the default
-        // requested OpenGL version to 1.0 to ensure EGL will give us a working context (lp:1549455).
-        static const bool isMesa = QString(eglQueryString(display, EGL_VENDOR)).contains(QStringLiteral("Mesa"));
-        if (isMesa) {
-            qCDebug(mirclientGraphics, "Attempting to choose OpenGL 1.4 context which may suit Mesa");
-            mFormat.setMajorVersion(1);
-            mFormat.setMinorVersion(4);
-            config = q_configFromGLFormat(display, mFormat, true);
-        }
-    }
-    if (config == 0) {
-        qCritical() << "Qt failed to choose a suitable EGLConfig to suit the surface format" << mFormat;
-    }
-
-    mFormat = q_glFormatFromConfig(display, config, mFormat);
-
-    // Have Mir decide the pixel format most suited to the chosen EGLConfig. This is the only way
-    // Mir will know what EGLConfig has been chosen - it cannot deduce it from the buffers.
-    mPixelFormat = mir_connection_get_egl_pixel_format(connection, display, config);
-    // But the chosen EGLConfig might have an alpha buffer enabled, even if not requested by the client.
-    // If that's the case, try to edit the chosen pixel format in order to disable the alpha buffer.
-    // This is an optimization for the compositor, as it can avoid blending this surface.
-    if (mWindow->requestedFormat().alphaBufferSize() < 0) {
-        mPixelFormat = disableAlphaBufferIfPossible(mPixelFormat);
-    }
-
-    const auto outputId = static_cast<QMirClientScreen *>(mWindow->screen()->handle())->mirOutputId();
-
-    mParentWindowHandle = getParentIfNecessary(mWindow, input);
-
-    mMirSurface = createMirSurface(mWindow, outputId, mParentWindowHandle, mPixelFormat, connection, surfaceEventCallback, this);
-    mEglSurface = eglCreateWindowSurface(mEglDisplay, config, nativeWindowFor(mMirSurface), nullptr);
-
-    mNeedsExposeCatchup = mir_surface_get_visibility(mMirSurface) == mir_surface_visibility_occluded;
-
-    // Window manager can give us a final size different from what we asked for
-    // so let's check what we ended up getting
-    MirSurfaceParameters parameters;
-    mir_surface_get_parameters(mMirSurface, &parameters);
-
-    auto geom = mWindow->geometry();
-    geom.setWidth(parameters.width);
-    geom.setHeight(parameters.height);
-
-    // Assume that the buffer size matches the surface size at creation time
-    mBufferSize = geom.size();
-    QWindowSystemInterface::handleGeometryChange(mWindow, geom);
-
-    qCDebug(mirclient) << "Created surface with geometry:" << geom << "title:" << mWindow->title()
-                       << "role:" << roleFor(mWindow);
-    qCDebug(mirclientGraphics)
-                       << "Requested format:" << mWindow->requestedFormat()
-                       << "\nActual format:" << mFormat
-                       << "with associated Mir pixel format:" << mirPixelFormatToStr(mPixelFormat);
-}
-
-UbuntuSurface::~UbuntuSurface()
-{
-    if (mEglSurface != EGL_NO_SURFACE)
-        eglDestroySurface(mEglDisplay, mEglSurface);
-    if (mMirSurface) {
-        mir_surface_release_sync(mMirSurface);
-    }
-}
-
-void UbuntuSurface::updateGeometry(const QRect &newGeometry)
-{
-    qCDebug(mirclient,"updateGeometry(window=%p, width=%d, height=%d)", mWindow,
-            newGeometry.width(), newGeometry.height());
-
-    Spec spec;
-    if (isMovable(mWindow->type())) {
-        spec = Spec{makeSurfaceSpec(mWindow, mPixelFormat, mParentWindowHandle, mConnection)};
-    } else {
-        spec = Spec{mir_connection_create_spec_for_changes(mConnection)};
-        mir_surface_spec_set_width(spec.get(), newGeometry.width());
-        mir_surface_spec_set_height(spec.get(), newGeometry.height());
-    }
-    mir_surface_apply_spec(mMirSurface, spec.get());
-}
-
-void UbuntuSurface::updateTitle(const QString& newTitle)
-{
-    const auto title = newTitle.toUtf8();
-    Spec spec{mir_connection_create_spec_for_changes(mConnection)};
-    mir_surface_spec_set_name(spec.get(), title.constData());
-    mir_surface_apply_spec(mMirSurface, spec.get());
-}
-
-void UbuntuSurface::setSizingConstraints(const QSize& minSize, const QSize& maxSize, const QSize& increment)
-{
-    Spec spec{mir_connection_create_spec_for_changes(mConnection)};
-    ::setSizingConstraints(spec.get(), minSize, maxSize, increment);
-    mir_surface_apply_spec(mMirSurface, spec.get());
-}
-
-void UbuntuSurface::handleSurfaceResized(int width, int height)
-{
-    QMutexLocker lock(&mTargetSizeMutex);
-
-    // mir's resize event is mainly a signal that we need to redraw our content. We use the
-    // width/height as identifiers to figure out if this is the latest surface resize event
-    // that has posted, discarding any old ones. This avoids issuing too many redraw events.
-    // see TODO in postEvent as the ideal way we should handle this.
-    // The actual buffer size may or may have not changed at this point, so let the rendering
-    // thread drive the window geometry updates.
-    mNeedsRepaint = mTargetSize.width() == width && mTargetSize.height() == height;
-}
-
-int UbuntuSurface::needsRepaint() const
-{
-    if (mNeedsRepaint) {
-        if (mTargetSize != mBufferSize) {
-            //If the buffer hasn't changed yet, we need at least two redraws,
-            //once to get the new buffer size and propagate the geometry changes
-            //and the second to redraw the content at the new size
-            return 2;
-        } else {
-            // The buffer size has already been updated so we only need one redraw
-            // to render at the new size
-            return 1;
-        }
-    }
-    return 0;
-}
-
-void UbuntuSurface::setState(MirSurfaceState state)
-{
-    mir_wait_for(mir_surface_set_state(mMirSurface, state));
-}
-
-void UbuntuSurface::setShellChrome(MirShellChrome chrome)
-{
-    if (chrome != mShellChrome) {
-        auto spec = Spec{mir_connection_create_spec_for_changes(mConnection)};
-        mir_surface_spec_set_shell_chrome(spec.get(), chrome);
-        mir_surface_apply_spec(mMirSurface, spec.get());
-
-        mShellChrome = chrome;
-    }
-}
-
-void UbuntuSurface::onSwapBuffersDone()
-{
-    static int sFrameNumber = 0;
-    ++sFrameNumber;
-
-    EGLint eglSurfaceWidth = -1;
-    EGLint eglSurfaceHeight = -1;
-    eglQuerySurface(mEglDisplay, mEglSurface, EGL_WIDTH, &eglSurfaceWidth);
-    eglQuerySurface(mEglDisplay, mEglSurface, EGL_HEIGHT, &eglSurfaceHeight);
-
-    const bool validSize = eglSurfaceWidth > 0 && eglSurfaceHeight > 0;
-
-    if (validSize && (mBufferSize.width() != eglSurfaceWidth || mBufferSize.height() != eglSurfaceHeight)) {
-
-        qCDebug(mirclientBufferSwap, "onSwapBuffersDone(window=%p) [%d] - size changed (%d, %d) => (%d, %d)",
-               mWindow, sFrameNumber, mBufferSize.width(), mBufferSize.height(), eglSurfaceWidth, eglSurfaceHeight);
-
-        mBufferSize.rwidth() = eglSurfaceWidth;
-        mBufferSize.rheight() = eglSurfaceHeight;
-
-        QRect newGeometry = mPlatformWindow->geometry();
-        newGeometry.setSize(mBufferSize);
-
-        QWindowSystemInterface::handleGeometryChange(mWindow, newGeometry);
-    } else {
-        qCDebug(mirclientBufferSwap, "onSwapBuffersDone(window=%p) [%d] - buffer size (%d,%d)",
-               mWindow, sFrameNumber, mBufferSize.width(), mBufferSize.height());
-    }
-}
-
-void UbuntuSurface::surfaceEventCallback(MirSurface *surface, const MirEvent *event, void* context)
-{
-    Q_UNUSED(surface);
-    Q_ASSERT(context != nullptr);
-
-    auto s = static_cast<UbuntuSurface *>(context);
-    s->postEvent(event);
-}
-
-void UbuntuSurface::postEvent(const MirEvent *event)
-{
-    if (mir_event_type_resize == mir_event_get_type(event)) {
-        // TODO: The current event queue just accumulates all resize events;
-        // It would be nicer if we could update just one event if that event has not been dispatched.
-        // As a workaround, we use the width/height as an identifier of this latest event
-        // so the event handler (handleSurfaceResized) can discard/ignore old ones.
-        const auto resizeEvent = mir_event_get_resize_event(event);
-        const auto width =  mir_resize_event_get_width(resizeEvent);
-        const auto height =  mir_resize_event_get_height(resizeEvent);
-        qCDebug(mirclient, "resizeEvent(window=%p, width=%d, height=%d)", mWindow, width, height);
-
-        QMutexLocker lock(&mTargetSizeMutex);
-        mTargetSize.rwidth() = width;
-        mTargetSize.rheight() = height;
-    }
-
-    mInput->postEvent(mPlatformWindow, event);
-}
-
-void UbuntuSurface::setSurfaceParent(MirSurface* parent)
-{
-    qCDebug(mirclient, "setSurfaceParent(window=%p)", mWindow);
-
-    mParented = true;
-    Spec spec{mir_connection_create_spec_for_changes(mConnection)};
-    mir_surface_spec_set_parent(spec.get(), parent);
-    mir_surface_apply_spec(mMirSurface, spec.get());
-}
-
-QString UbuntuSurface::persistentSurfaceId()
-{
-    if (mPersistentIdStr.isEmpty()) {
-        MirPersistentId* mirPermaId = mir_surface_request_persistent_id_sync(mMirSurface);
-        mPersistentIdStr = mir_persistent_id_as_string(mirPermaId);
-        mir_persistent_id_release(mirPermaId);
-    }
-    return mPersistentIdStr;
-}
-
-QMirClientWindow::QMirClientWindow(QWindow *w, QMirClientInput *input, QMirClientNativeInterface *native,
-                                   QMirClientAppStateController *appState, EGLDisplay eglDisplay,
-                                   MirConnection *mirConnection, QMirClientDebugExtension *debugExt)
-    : QObject(nullptr)
-    , QPlatformWindow(w)
-    , mId(makeId())
-    , mWindowState(w->windowState())
-    , mWindowFlags(w->flags())
-    , mWindowVisible(false)
-    , mAppStateController(appState)
-    , mDebugExtention(debugExt)
-    , mNativeInterface(native)
-    , mSurface(new UbuntuSurface{this, eglDisplay, input, mirConnection})
-    , mScale(1.0)
-    , mFormFactor(mir_form_factor_unknown)
-{
-    mWindowExposed = mSurface->mNeedsExposeCatchup == false;
-
-    qCDebug(mirclient, "QMirClientWindow(window=%p, screen=%p, input=%p, surf=%p) with title '%s', role: '%d'",
-            w, w->screen()->handle(), input, mSurface.get(), qPrintable(window()->title()), roleFor(window()));
-}
-
-QMirClientWindow::~QMirClientWindow()
-{
-    qCDebug(mirclient, "~QMirClientWindow(window=%p)", this);
-}
-
-void QMirClientWindow::handleSurfaceResized(int width, int height)
-{
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "handleSurfaceResize(window=%p, size=(%dx%d)px", window(), width, height);
-
-    mSurface->handleSurfaceResized(width, height);
-
-    // This resize event could have occurred just after the last buffer swap for this window.
-    // This means the client may still be holding a buffer with the older size. The first redraw call
-    // will then render at the old size. After swapping the client now will get a new buffer with the
-    // updated size but it still needs re-rendering so another redraw may be needed.
-    // A mir API to drop the currently held buffer would help here, so that we wouldn't have to redraw twice
-    auto const numRepaints = mSurface->needsRepaint();
-    lock.unlock();
-    qCDebug(mirclient, "handleSurfaceResize(window=%p) redraw %d times", window(), numRepaints);
-    for (int i = 0; i < numRepaints; i++) {
-        qCDebug(mirclient, "handleSurfaceResize(window=%p) repainting size=(%dx%d)dp", window(), geometry().size().width(), geometry().size().height());
-        QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-    }
-}
-
-void QMirClientWindow::handleSurfaceExposeChange(bool exposed)
-{
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "handleSurfaceExposeChange(window=%p, exposed=%s)", window(), exposed ? "true" : "false");
-
-    mSurface->mNeedsExposeCatchup = false;
-    if (mWindowExposed == exposed) return;
-    mWindowExposed = exposed;
-
-    lock.unlock();
-    QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-}
-
-void QMirClientWindow::handleSurfaceFocusChanged(bool focused)
-{
-    qCDebug(mirclient, "handleSurfaceFocusChanged(window=%p, focused=%d)", window(), focused);
-    if (focused) {
-        mAppStateController->setWindowFocused(true);
-        QWindowSystemInterface::handleWindowActivated(window(), Qt::ActiveWindowFocusReason);
-    } else {
-        mAppStateController->setWindowFocused(false);
-    }
-}
-
-void QMirClientWindow::handleSurfaceVisibilityChanged(bool visible)
-{
-    qCDebug(mirclient, "handleSurfaceVisibilityChanged(window=%p, visible=%d)", window(), visible);
-
-    if (mWindowVisible == visible) return;
-    mWindowVisible = visible;
-
-    QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-}
-
-void QMirClientWindow::handleSurfaceStateChanged(Qt::WindowState state)
-{
-    qCDebug(mirclient, "handleSurfaceStateChanged(window=%p, %s)", window(), qtWindowStateToStr(state));
-
-    if (mWindowState == state) return;
-    mWindowState = state;
-
-    QWindowSystemInterface::handleWindowStateChanged(window(), state);
-}
-
-void QMirClientWindow::setWindowState(Qt::WindowStates states)
-{
-    Qt::WindowState state = Qt::WindowNoState;
-    if (states & Qt::WindowMinimized)
-        state = Qt::WindowMinimized;
-    else if (states & Qt::WindowFullScreen)
-        state = Qt::WindowFullScreen;
-    else if (states & Qt::WindowMaximized)
-        state = Qt::WindowMaximized;
-
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "setWindowState(window=%p, %s)", this, qtWindowStateToStr(state));
-
-    if (mWindowState == state) return;
-    mWindowState = state;
-
-    lock.unlock();
-    updateSurfaceState();
-}
-
-void QMirClientWindow::setWindowFlags(Qt::WindowFlags flags)
-{
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "setWindowFlags(window=%p, 0x%x)", this, (int)flags);
-
-    if (mWindowFlags == flags) return;
-    mWindowFlags = flags;
-
-    mSurface->setShellChrome(mWindowFlags & LowChromeWindowHint ? mir_shell_chrome_low : mir_shell_chrome_normal);
-}
-
-QRect QMirClientWindow::geometry() const
-{
-    if (mDebugExtention) {
-        auto geom = QPlatformWindow::geometry();
-        geom.moveTopLeft(mDebugExtention->mapSurfacePointToScreen(mSurface->mirSurface(), QPoint(0,0)));
-        return geom;
-    } else {
-        return QPlatformWindow::geometry();
-    }
-}
-
-void QMirClientWindow::setGeometry(const QRect& rect)
-{
-    QMutexLocker lock(&mMutex);
-
-    if (window()->windowState() == Qt::WindowFullScreen || window()->windowState() == Qt::WindowMaximized) {
-        qCDebug(mirclient, "setGeometry(window=%p) - not resizing, window is maximized or fullscreen", window());
-        return;
-    }
-
-    qCDebug(mirclient, "setGeometry (window=%p, position=(%d, %d)dp, size=(%dx%d)dp)",
-            window(), rect.x(), rect.y(), rect.width(), rect.height());
-    // Immediately update internal geometry so Qt believes position updated
-    QRect newPosition(geometry());
-    newPosition.moveTo(rect.topLeft());
-    QPlatformWindow::setGeometry(newPosition);
-
-    mSurface->updateGeometry(rect);
-    // Note: don't call handleGeometryChange here, wait to see what Mir replies with.
-}
-
-void QMirClientWindow::setVisible(bool visible)
-{
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "setVisible (window=%p, visible=%s)", window(), visible ? "true" : "false");
-
-    if (mWindowVisible == visible) return;
-    mWindowVisible = visible;
-
-    if (visible) {
-        if (!mSurface->hasParent() && window()->type() == Qt::Dialog) {
-            // The dialog may have been parented after creation time
-            // so morph it into a modal dialog
-            auto parent = transientParentFor(window());
-            if (parent) {
-                mSurface->setSurfaceParent(parent->mirSurface());
-            }
-        }
-    }
-
-    lock.unlock();
-    updateSurfaceState();
-    QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-}
-
-void QMirClientWindow::setWindowTitle(const QString& title)
-{
-    QMutexLocker lock(&mMutex);
-    qCDebug(mirclient, "setWindowTitle(window=%p) title=%s)", window(), title.toUtf8().constData());
-    mSurface->updateTitle(title);
-}
-
-void QMirClientWindow::propagateSizeHints()
-{
-    QMutexLocker lock(&mMutex);
-    const auto win = window();
-    qCDebug(mirclient, "propagateSizeHints(window=%p) min(%d,%d), max(%d,%d) increment(%d, %d)",
-            win, win->minimumSize().width(), win->minimumSize().height(),
-            win->maximumSize().width(), win->maximumSize().height(),
-            win->sizeIncrement().width(), win->sizeIncrement().height());
-    mSurface->setSizingConstraints(win->minimumSize(), win->maximumSize(), win->sizeIncrement());
-}
-
-bool QMirClientWindow::isExposed() const
-{
-    // mNeedsExposeCatchup because we need to render a frame to get the expose surface event from mir.
-    return mWindowVisible && (mWindowExposed || (mSurface && mSurface->mNeedsExposeCatchup));
-}
-
-QSurfaceFormat QMirClientWindow::format() const
-{
-    return mSurface->format();
-}
-
-QPoint QMirClientWindow::mapToGlobal(const QPoint &pos) const
-{
-    if (mDebugExtention) {
-        return mDebugExtention->mapSurfacePointToScreen(mSurface->mirSurface(), pos);
-    } else {
-        return pos;
-    }
-}
-
-void* QMirClientWindow::eglSurface() const
-{
-    return mSurface->eglSurface();
-}
-
-MirSurface *QMirClientWindow::mirSurface() const
-{
-    return mSurface->mirSurface();
-}
-
-WId QMirClientWindow::winId() const
-{
-    return mId;
-}
-
-void QMirClientWindow::onSwapBuffersDone()
-{
-    QMutexLocker lock(&mMutex);
-    mSurface->onSwapBuffersDone();
-
-    if (mSurface->mNeedsExposeCatchup) {
-        mSurface->mNeedsExposeCatchup = false;
-        mWindowExposed = false;
-
-        lock.unlock();
-        QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-    }
-}
-
-void QMirClientWindow::handleScreenPropertiesChange(MirFormFactor formFactor, float scale)
-{
-    // Update the scale & form factor native-interface properties for the windows affected
-    // as there is no convenient way to emit signals for those custom properties on a QScreen
-    if (formFactor != mFormFactor) {
-        mFormFactor = formFactor;
-        Q_EMIT mNativeInterface->windowPropertyChanged(this, QStringLiteral("formFactor"));
-    }
-
-    if (!qFuzzyCompare(scale, mScale)) {
-        mScale = scale;
-        Q_EMIT mNativeInterface->windowPropertyChanged(this, QStringLiteral("scale"));
-    }
-}
-
-void QMirClientWindow::updateSurfaceState()
-{
-    QMutexLocker lock(&mMutex);
-    MirSurfaceState newState = mWindowVisible ? qtWindowStateToMirSurfaceState(mWindowState) :
-                                                mir_surface_state_hidden;
-    qCDebug(mirclient, "updateSurfaceState (window=%p, surfaceState=%s)", window(), mirSurfaceStateToStr(newState));
-    if (newState != mSurface->state()) {
-        mSurface->setState(newState);
-    }
-}
-
-QString QMirClientWindow::persistentSurfaceId()
-{
-    return mSurface->persistentSurfaceId();
-}
diff --git a/src/plugins/platforms/mirclient/qmirclientwindow.h b/src/plugins/platforms/mirclient/qmirclientwindow.h
deleted file mode 100644
index 6c5695d62f..0000000000
--- a/src/plugins/platforms/mirclient/qmirclientwindow.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014-2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#ifndef QMIRCLIENTWINDOW_H
-#define QMIRCLIENTWINDOW_H
-
-#include <qpa/qplatformwindow.h>
-#include <QSharedPointer>
-#include <QMutex>
-
-#include <mir_toolkit/common.h> // needed only for MirFormFactor enum
-
-#include <memory>
-
-#include <EGL/egl.h>
-
-class QMirClientAppStateController;
-class QMirClientDebugExtension;
-class QMirClientNativeInterface;
-class QMirClientInput;
-class QMirClientScreen;
-class UbuntuSurface;
-struct MirSurface;
-class MirConnection;
-
-class QMirClientWindow : public QObject, public QPlatformWindow
-{
-    Q_OBJECT
-public:
-    QMirClientWindow(QWindow *w, QMirClientInput *input, QMirClientNativeInterface* native,
-                     QMirClientAppStateController *appState, EGLDisplay eglDisplay,
-                     MirConnection *mirConnection, QMirClientDebugExtension *debugExt);
-    virtual ~QMirClientWindow();
-
-    // QPlatformWindow methods.
-    WId winId() const override;
-    QRect geometry() const override;
-    void setGeometry(const QRect&) override;
-    void setWindowState(Qt::WindowStates state) override;
-    void setWindowFlags(Qt::WindowFlags flags) override;
-    void setVisible(bool visible) override;
-    void setWindowTitle(const QString &title) override;
-    void propagateSizeHints() override;
-    bool isExposed() const override;
-
-    QPoint mapToGlobal(const QPoint &pos) const override;
-    QSurfaceFormat format() const override;
-
-    // Additional Window properties exposed by NativeInterface
-    MirFormFactor formFactor() const { return mFormFactor; }
-    float scale() const { return mScale; }
-
-    // New methods.
-    void *eglSurface() const;
-    MirSurface *mirSurface() const;
-    void handleSurfaceResized(int width, int height);
-    void handleSurfaceExposeChange(bool exposed);
-    void handleSurfaceFocusChanged(bool focused);
-    void handleSurfaceVisibilityChanged(bool visible);
-    void handleSurfaceStateChanged(Qt::WindowState state);
-    void onSwapBuffersDone();
-    void handleScreenPropertiesChange(MirFormFactor formFactor, float scale);
-    QString persistentSurfaceId();
-
-private:
-    void updateSurfaceState();
-    mutable QMutex mMutex;
-    const WId mId;
-    Qt::WindowState mWindowState;
-    Qt::WindowFlags mWindowFlags;
-    bool mWindowVisible;
-    bool mWindowExposed;
-    QMirClientAppStateController *mAppStateController;
-    QMirClientDebugExtension *mDebugExtention;
-    QMirClientNativeInterface *mNativeInterface;
-    std::unique_ptr<UbuntuSurface> mSurface;
-    float mScale;
-    MirFormFactor mFormFactor;
-};
-
-#endif // QMIRCLIENTWINDOW_H
diff --git a/src/plugins/platforms/platforms.pro b/src/plugins/platforms/platforms.pro
index acc55adf6f..c4f2b30965 100644
--- a/src/plugins/platforms/platforms.pro
+++ b/src/plugins/platforms/platforms.pro
@@ -48,6 +48,4 @@ haiku {
 
 wasm: SUBDIRS += wasm
 
-qtConfig(mirclient): SUBDIRS += mirclient
-
 qtConfig(integrityfb): SUBDIRS += integrity
diff --git a/src/plugins/platforms/qnx/qnx.pro b/src/plugins/platforms/qnx/qnx.pro
index 96bfa1dd19..bfd56e8d13 100644
--- a/src/plugins/platforms/qnx/qnx.pro
+++ b/src/plugins/platforms/qnx/qnx.pro
@@ -33,6 +33,7 @@ QT += \
 
 SOURCES =   main.cpp \
             qqnxbuffer.cpp \
+            qqnxforeignwindow.cpp \
             qqnxintegration.cpp \
             qqnxscreen.cpp \
             qqnxwindow.cpp \
@@ -50,6 +51,7 @@ SOURCES =   main.cpp \
 
 HEADERS =   main.h \
             qqnxbuffer.h \
+            qqnxforeignwindow.h \
             qqnxkeytranslator.h \
             qqnxintegration.h \
             qqnxscreen.h \
diff --git a/src/plugins/platforms/mirclient/qmirclienttheme.cpp b/src/plugins/platforms/qnx/qqnxforeignwindow.cpp
index dcfef7ca67..94608215dc 100644
--- a/src/plugins/platforms/mirclient/qmirclienttheme.cpp
+++ b/src/plugins/platforms/qnx/qqnxforeignwindow.cpp
@@ -1,6 +1,6 @@
-/****************************************************************************
+/***************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins of the Qt Toolkit.
@@ -37,31 +37,29 @@
 **
 ****************************************************************************/
 
+#include "qqnxforeignwindow.h"
+#include "qqnxintegration.h"
 
-#include "qmirclienttheme.h"
+QT_BEGIN_NAMESPACE
 
-#include <QtCore/QVariant>
-
-const char *QMirClientTheme::name = "ubuntu";
-
-QMirClientTheme::QMirClientTheme()
+QQnxForeignWindow::QQnxForeignWindow(QWindow *window,
+                                     screen_context_t context,
+                                     screen_window_t screenWindow)
+    : QQnxWindow(window, context, screenWindow)
 {
+    initWindow();
 }
 
-QMirClientTheme::~QMirClientTheme()
+bool QQnxForeignWindow::isForeignWindow() const
 {
+    return true;
 }
 
-QVariant QMirClientTheme::themeHint(ThemeHint hint) const
+int QQnxForeignWindow::pixelFormat() const
 {
-    if (hint == QPlatformTheme::SystemIconThemeName) {
-        QByteArray iconTheme = qgetenv("QTUBUNTU_ICON_THEME");
-        if (iconTheme.isEmpty()) {
-            return QVariant(QStringLiteral("ubuntu-mobile"));
-        } else {
-            return QVariant(QString(iconTheme));
-        }
-    } else {
-        return QGenericUnixTheme::themeHint(hint);
-    }
+    int result = SCREEN_FORMAT_RGBA8888;
+    screen_get_window_property_iv(nativeHandle(), SCREEN_PROPERTY_FORMAT, &result);
+    return result;
 }
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/mirclient/qmirclientappstatecontroller.h b/src/plugins/platforms/qnx/qqnxforeignwindow.h
index b3aa0022d9..22dde643e4 100644
--- a/src/plugins/platforms/mirclient/qmirclientappstatecontroller.h
+++ b/src/plugins/platforms/qnx/qqnxforeignwindow.h
@@ -1,6 +1,6 @@
-/****************************************************************************
+/***************************************************************************
 **
-** Copyright (C) 2016 Canonical, Ltd.
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins of the Qt Toolkit.
@@ -37,26 +37,25 @@
 **
 ****************************************************************************/
 
+#ifndef QQNXFOREIGNWINDOW_H
+#define QQNXFOREIGNWINDOW_H
 
-#ifndef QMIRCLIENTAPPSTATECONTROLLER_H
-#define QMIRCLIENTAPPSTATECONTROLLER_H
+#include "qqnxwindow.h"
 
-#include <QTimer>
+QT_BEGIN_NAMESPACE
 
-class QMirClientAppStateController
+class QQnxForeignWindow : public QQnxWindow
 {
 public:
-    QMirClientAppStateController();
+    QQnxForeignWindow(QWindow *window,
+                      screen_context_t context,
+                      screen_window_t screenWindow);
 
-    void setSuspended();
-    void setResumed();
-
-    void setWindowFocused(bool focused);
-
-private:
-    bool m_suspended;
-    bool m_lastActive;
-    QTimer m_inactiveTimer;
+    bool isForeignWindow() const override;
+    int pixelFormat() const override;
+    void resetBuffers() override {}
 };
 
-#endif // QMIRCLIENTAPPSTATECONTROLLER_H
+QT_END_NAMESPACE
+
+#endif // QQNXFOREIGNWINDOW_H
diff --git a/src/plugins/platforms/qnx/qqnxintegration.cpp b/src/plugins/platforms/qnx/qqnxintegration.cpp
index a45dcabeb7..d9120256b3 100644
--- a/src/plugins/platforms/qnx/qqnxintegration.cpp
+++ b/src/plugins/platforms/qnx/qqnxintegration.cpp
@@ -51,6 +51,7 @@
 #include "qqnxabstractvirtualkeyboard.h"
 #include "qqnxservices.h"
 
+#include "qqnxforeignwindow.h"
 #include "qqnxrasterwindow.h"
 #if !defined(QT_NO_OPENGL)
 #include "qqnxeglwindow.h"
@@ -147,6 +148,7 @@ static inline int getContextCapabilities(const QStringList &paramList)
 
 QQnxIntegration::QQnxIntegration(const QStringList &paramList)
     : QPlatformIntegration()
+    , m_screenContextId(256, 0)
     , m_screenEventThread(0)
     , m_navigatorEventHandler(new QQnxNavigatorEventHandler())
     , m_virtualKeyboard(0)
@@ -178,6 +180,11 @@ QQnxIntegration::QQnxIntegration(const QStringList &paramList)
         qFatal("%s - Screen: Failed to create screen context - Error: %s (%i)",
                Q_FUNC_INFO, strerror(errno), errno);
     }
+    screen_get_context_property_cv(m_screenContext,
+                                   SCREEN_PROPERTY_ID,
+                                   m_screenContextId.size(),
+                                   m_screenContextId.data());
+    m_screenContextId.resize(strlen(m_screenContextId.constData()));
 
 #if QT_CONFIG(qqnx_pps)
     // Create/start navigator event notifier
@@ -310,6 +317,7 @@ bool QQnxIntegration::hasCapability(QPlatformIntegration::Capability cap) const
     qIntegrationDebug();
     switch (cap) {
     case MultipleWindows:
+    case ForeignWindows:
     case ThreadedPixmaps:
         return true;
 #if !defined(QT_NO_OPENGL)
@@ -323,6 +331,18 @@ bool QQnxIntegration::hasCapability(QPlatformIntegration::Capability cap) const
     }
 }
 
+QPlatformWindow *QQnxIntegration::createForeignWindow(QWindow *window, WId nativeHandle) const
+{
+    screen_window_t screenWindow = reinterpret_cast<screen_window_t>(nativeHandle);
+    if (this->window(screenWindow)) {
+        qWarning() << "QWindow already created for foreign window"
+                   << screenWindow;
+        return nullptr;
+    }
+
+    return new QQnxForeignWindow(window, m_screenContext, screenWindow);
+}
+
 QPlatformWindow *QQnxIntegration::createPlatformWindow(QWindow *window) const
 {
     qIntegrationDebug();
@@ -478,7 +498,7 @@ QPlatformServices * QQnxIntegration::services() const
     return m_services;
 }
 
-QWindow *QQnxIntegration::window(screen_window_t qnxWindow)
+QWindow *QQnxIntegration::window(screen_window_t qnxWindow) const
 {
     qIntegrationDebug();
     QMutexLocker locker(&m_windowMapperMutex);
@@ -706,6 +726,11 @@ screen_context_t QQnxIntegration::screenContext()
     return m_screenContext;
 }
 
+QByteArray QQnxIntegration::screenContextId()
+{
+    return m_screenContextId;
+}
+
 QQnxNavigatorEventHandler *QQnxIntegration::navigatorEventHandler()
 {
     return m_navigatorEventHandler;
diff --git a/src/plugins/platforms/qnx/qqnxintegration.h b/src/plugins/platforms/qnx/qqnxintegration.h
index 366556dc4b..0bf37880d1 100644
--- a/src/plugins/platforms/qnx/qqnxintegration.h
+++ b/src/plugins/platforms/qnx/qqnxintegration.h
@@ -92,6 +92,7 @@ public:
 
     bool hasCapability(QPlatformIntegration::Capability cap) const override;
 
+    QPlatformWindow *createForeignWindow(QWindow *window, WId nativeHandle) const override;
     QPlatformWindow *createPlatformWindow(QWindow *window) const override;
     QPlatformBackingStore *createPlatformBackingStore(QWindow *window) const override;
 
@@ -123,7 +124,7 @@ public:
 
     QPlatformServices *services() const override;
 
-    QWindow *window(screen_window_t qnxWindow);
+    QWindow *window(screen_window_t qnxWindow) const;
 
     QQnxScreen *screenForNative(screen_display_t qnxScreen) const;
 
@@ -132,6 +133,7 @@ public:
     QQnxScreen *primaryDisplay() const;
     Options options() const;
     screen_context_t screenContext();
+    QByteArray screenContextId();
 
     QQnxNavigatorEventHandler *navigatorEventHandler();
 
@@ -145,6 +147,7 @@ private:
                                           int displayCount);
 
     screen_context_t m_screenContext;
+    QByteArray m_screenContextId;
     QQnxScreenEventThread *m_screenEventThread;
     QQnxNavigatorEventHandler *m_navigatorEventHandler;
     QQnxAbstractVirtualKeyboard *m_virtualKeyboard;
@@ -168,7 +171,7 @@ private:
     QSimpleDrag *m_drag;
 #endif
     QQnxWindowMapper m_windowMapper;
-    QMutex m_windowMapperMutex;
+    mutable QMutex m_windowMapperMutex;
 
     Options m_options;
 
diff --git a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
index f29e11489b..56131dcc48 100644
--- a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
+++ b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
@@ -45,6 +45,7 @@
 #include "qqnxkeytranslator.h"
 #include "qqnxscreen.h"
 #include "qqnxscreeneventfilter.h"
+#include "qqnxscreentraits.h"
 
 #include <QDebug>
 #include <QGuiApplication>
@@ -89,6 +90,51 @@ static QString capKeyString(int cap, int modifiers, int key)
     return QString();
 }
 
+template <typename T>
+static void finishCloseEvent(screen_event_t event)
+{
+    T t;
+    screen_get_event_property_pv(event,
+            screen_traits<T>::propertyName,
+            reinterpret_cast<void**>(&t));
+    screen_traits<T>::destroy(t);
+}
+
+static void finishCloseEvent(screen_event_t event)
+{
+    // Let libscreen know that we're finished with anything that may have been acquired.
+    int objectType = SCREEN_OBJECT_TYPE_CONTEXT;
+    screen_get_event_property_iv(event, SCREEN_PROPERTY_OBJECT_TYPE, &objectType);
+    switch (objectType) {
+    case SCREEN_OBJECT_TYPE_CONTEXT:
+        finishCloseEvent<screen_context_t>(event);
+        break;
+    case SCREEN_OBJECT_TYPE_DEVICE:
+        finishCloseEvent<screen_device_t>(event);
+        break;
+    case SCREEN_OBJECT_TYPE_DISPLAY:
+        // no screen_destroy_display
+        break;
+    case SCREEN_OBJECT_TYPE_GROUP:
+        finishCloseEvent<screen_group_t>(event);
+        break;
+    case SCREEN_OBJECT_TYPE_PIXMAP:
+        finishCloseEvent<screen_pixmap_t>(event);
+        break;
+    case SCREEN_OBJECT_TYPE_SESSION:
+        finishCloseEvent<screen_session_t>(event);
+        break;
+#if _SCREEN_VERSION >= _SCREEN_MAKE_VERSION(2, 0, 0)
+    case SCREEN_OBJECT_TYPE_STREAM:
+        finishCloseEvent<screen_stream_t>(event);
+        break;
+#endif
+    case SCREEN_OBJECT_TYPE_WINDOW:
+        finishCloseEvent<screen_window_t>(event);
+        break;
+    }
+}
+
 QT_BEGIN_NAMESPACE
 
 QQnxScreenEventHandler::QQnxScreenEventHandler(QQnxIntegration *integration)
@@ -242,11 +288,18 @@ void QQnxScreenEventHandler::processEvents()
             break;
 
         ++count;
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+        qintptr result = 0;
+#else
         long result = 0;
+#endif
         QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
         bool handled = dispatcher && dispatcher->filterNativeEvent(QByteArrayLiteral("screen_event_t"), event, &result);
         if (!handled)
             handleEvent(event);
+
+        if (type == SCREEN_EVENT_CLOSE)
+            finishCloseEvent(event);
     }
 
     m_eventThread->armEventsPending(count);
diff --git a/src/plugins/platforms/qnx/qqnxscreentraits.h b/src/plugins/platforms/qnx/qqnxscreentraits.h
new file mode 100644
index 0000000000..ebd74141f2
--- /dev/null
+++ b/src/plugins/platforms/qnx/qqnxscreentraits.h
@@ -0,0 +1,127 @@
+/***************************************************************************
+**
+** Copyright (C) 2018 QNX Software Systems. All rights reserved.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQNXSCREENTRAITS_H
+#define QQNXSCREENTRAITS_H
+
+#include <screen/screen.h>
+
+QT_BEGIN_NAMESPACE
+
+template <typename T>
+class screen_traits
+{
+};
+
+template <>
+class screen_traits<screen_context_t>
+{
+public:
+    typedef screen_context_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_CONTEXT;
+    static int destroy(screen_context_t context) { return screen_destroy_context(context); }
+};
+
+template <>
+class screen_traits<screen_device_t>
+{
+public:
+    typedef screen_device_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_DEVICE;
+    static int destroy(screen_device_t device) { return screen_destroy_device(device); }
+};
+
+template <>
+class screen_traits<screen_display_t>
+{
+public:
+    typedef screen_display_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_DISPLAY;
+};
+
+template <>
+class screen_traits<screen_group_t>
+{
+public:
+    typedef screen_group_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_GROUP;
+    static int destroy(screen_group_t group) { return screen_destroy_group(group); }
+};
+
+template <>
+class screen_traits<screen_pixmap_t>
+{
+public:
+    typedef screen_pixmap_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_PIXMAP;
+    static int destroy(screen_pixmap_t pixmap) { return screen_destroy_pixmap(pixmap); }
+};
+
+template <>
+class screen_traits<screen_session_t>
+{
+public:
+    typedef screen_session_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_SESSION;
+    static int destroy(screen_session_t session) { return screen_destroy_session(session); }
+};
+
+#if _SCREEN_VERSION >= _SCREEN_MAKE_VERSION(2, 0, 0)
+template <>
+class screen_traits<screen_stream_t>
+{
+public:
+    typedef screen_stream_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_STREAM;
+    static int destroy(screen_stream_t stream) { return screen_destroy_stream(stream); }
+};
+#endif
+
+template <>
+class screen_traits<screen_window_t>
+{
+public:
+    typedef screen_window_t screen_type;
+    static const int propertyName = SCREEN_PROPERTY_WINDOW;
+    static int destroy(screen_window_t window) { return screen_destroy_window(window); }
+};
+
+QT_END_NAMESPACE
+
+#endif // QQNXSCREENTRAITS_H
diff --git a/src/plugins/platforms/qnx/qqnxwindow.cpp b/src/plugins/platforms/qnx/qqnxwindow.cpp
index 7644e28b44..1d3d609017 100644
--- a/src/plugins/platforms/qnx/qqnxwindow.cpp
+++ b/src/plugins/platforms/qnx/qqnxwindow.cpp
@@ -155,6 +155,7 @@ QQnxWindow::QQnxWindow(QWindow *window, screen_context_t context, bool needRootW
       m_parentWindow(0),
       m_visible(false),
       m_exposed(true),
+      m_foreign(false),
       m_windowState(Qt::WindowNoState),
       m_mmRendererWindow(0),
       m_firstActivateHandled(false)
@@ -254,6 +255,39 @@ QQnxWindow::QQnxWindow(QWindow *window, screen_context_t context, bool needRootW
     }
 }
 
+QQnxWindow::QQnxWindow(QWindow *window, screen_context_t context, screen_window_t screenWindow)
+    : QPlatformWindow(window)
+    , m_screenContext(context)
+    , m_window(screenWindow)
+    , m_screen(0)
+    , m_parentWindow(0)
+    , m_visible(false)
+    , m_exposed(true)
+    , m_foreign(true)
+    , m_windowState(Qt::WindowNoState)
+    , m_mmRendererWindow(0)
+    , m_parentGroupName(256, 0)
+    , m_isTopLevel(false)
+{
+    qWindowDebug() << "window =" << window << ", size =" << window->size();
+
+    collectWindowGroup();
+
+    screen_get_window_property_cv(m_window,
+                                  SCREEN_PROPERTY_PARENT,
+                                  m_parentGroupName.size(),
+                                  m_parentGroupName.data());
+    m_parentGroupName.resize(strlen(m_parentGroupName.constData()));
+
+    // If a window group has been provided join it now. If it's an empty string that's OK too,
+    // it'll cause us not to join a group (the app will presumably join at some future time).
+    QVariant parentGroup = window->property("qnxInitialWindowGroup");
+    if (!parentGroup.isValid())
+        parentGroup = window->property("_q_platform_qnxParentGroup");
+    if (parentGroup.isValid() && parentGroup.canConvert<QByteArray>())
+        joinWindowGroup(parentGroup.toByteArray());
+}
+
 QQnxWindow::~QQnxWindow()
 {
     qWindowDebug() << "window =" << window();
@@ -270,7 +304,11 @@ QQnxWindow::~QQnxWindow()
         m_screen->updateHierarchy();
 
     // Cleanup QNX window and its buffers
-    screen_destroy_window(m_window);
+    // Foreign windows are cleaned up externally after the CLOSE event has been handled.
+    if (m_foreign)
+        removeContextPermission();
+    else
+        screen_destroy_window(m_window);
 }
 
 void QQnxWindow::setGeometry(const QRect &rect)
@@ -793,14 +831,24 @@ void QQnxWindow::initWindow()
     setGeometryHelper(shouldMakeFullScreen() ? screen()->geometry() : window()->geometry());
 }
 
-void QQnxWindow::createWindowGroup()
+void QQnxWindow::collectWindowGroup()
 {
-    // Generate a random window group name
-    m_windowGroupName = QUuid::createUuid().toByteArray();
+    QByteArray groupName(256, 0);
+    Q_SCREEN_CHECKERROR(screen_get_window_property_cv(m_window,
+                                                      SCREEN_PROPERTY_GROUP,
+                                                      groupName.size(),
+                                                      groupName.data()),
+                        "Failed to retrieve window group");
+    groupName.resize(strlen(groupName.constData()));
+    m_windowGroupName = groupName;
+}
 
-    // Create window group so child windows can be parented by container window
-    Q_SCREEN_CHECKERROR(screen_create_window_group(m_window, m_windowGroupName.constData()),
+void QQnxWindow::createWindowGroup()
+{
+    Q_SCREEN_CHECKERROR(screen_create_window_group(m_window, nullptr),
                         "Failed to create window group");
+
+    collectWindowGroup();
 }
 
 void QQnxWindow::joinWindowGroup(const QByteArray &groupName)
@@ -809,6 +857,17 @@ void QQnxWindow::joinWindowGroup(const QByteArray &groupName)
 
     qWindowDebug() << "group:" << groupName;
 
+    // screen has this annoying habit of generating a CLOSE/CREATE when the owner context of
+    // the parent group moves a foreign window to another group that it also owns.  The
+    // CLOSE/CREATE changes the identity of the foreign window.  Usually, this is undesirable.
+    // To prevent this CLOSE/CREATE when changing the parent group, we temporarily add a
+    // context permission for the Qt context.  screen won't send a CLOSE/CREATE when the
+    // context has some permission other than the PARENT permission.  If there isn't a new
+    // group (the window has no parent), this context permission is left in place.
+
+    if (m_foreign && !m_parentGroupName.isEmpty())\
+        addContextPermission();
+
     if (!groupName.isEmpty()) {
         if (groupName != m_parentGroupName) {
             screen_join_window_group(m_window, groupName);
@@ -827,6 +886,9 @@ void QQnxWindow::joinWindowGroup(const QByteArray &groupName)
         m_parentGroupName = "";
     }
 
+    if (m_foreign && !groupName.isEmpty())
+        removeContextPermission();
+
     if (changed)
         screen_flush_context(m_screenContext, 0);
 }
@@ -899,4 +961,26 @@ bool QQnxWindow::focusable() const
     return (window()->flags() & Qt::WindowDoesNotAcceptFocus) != Qt::WindowDoesNotAcceptFocus;
 }
 
+void QQnxWindow::addContextPermission()
+{
+    QByteArray grantString("context:");
+    grantString.append(QQnxIntegration::instance()->screenContextId());
+    grantString.append(":rw-");
+    screen_set_window_property_cv(m_window,
+            SCREEN_PROPERTY_PERMISSIONS,
+            grantString.length(),
+            grantString.data());
+}
+
+void QQnxWindow::removeContextPermission()
+{
+    QByteArray revokeString("context:");
+    revokeString.append(QQnxIntegration::instance()->screenContextId());
+    revokeString.append(":---");
+    screen_set_window_property_cv(m_window,
+            SCREEN_PROPERTY_PERMISSIONS,
+            revokeString.length(),
+            revokeString.data());
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/qnx/qqnxwindow.h b/src/plugins/platforms/qnx/qqnxwindow.h
index 20c38cb4b7..9040619c41 100644
--- a/src/plugins/platforms/qnx/qqnxwindow.h
+++ b/src/plugins/platforms/qnx/qqnxwindow.h
@@ -64,7 +64,8 @@ class QQnxWindow : public QPlatformWindow
 {
 friend class QQnxScreen;
 public:
-    QQnxWindow(QWindow *window, screen_context_t context, bool needRootWindow);
+    explicit QQnxWindow(QWindow *window, screen_context_t context, bool needRootWindow);
+    explicit QQnxWindow(QWindow *window, screen_context_t context, screen_window_t screenWindow);
     virtual ~QQnxWindow();
 
     void setGeometry(const QRect &rect) override;
@@ -124,6 +125,7 @@ protected:
     screen_context_t m_screenContext;
 
 private:
+    void collectWindowGroup();
     void createWindowGroup();
     void setGeometryHelper(const QRect &rect);
     void removeFromParent();
@@ -135,6 +137,9 @@ private:
     bool showWithoutActivating() const;
     bool focusable() const;
 
+    void addContextPermission();
+    void removeContextPermission();
+
     screen_window_t m_window;
     QSize m_bufferSize;
 
@@ -144,6 +149,7 @@ private:
     QScopedPointer<QQnxAbstractCover> m_cover;
     bool m_visible;
     bool m_exposed;
+    bool m_foreign;
     QRect m_unmaximizedGeometry;
     Qt::WindowStates m_windowState;
     QString m_mmRendererWindowName;
diff --git a/src/plugins/platforms/vnc/qvnc_p.h b/src/plugins/platforms/vnc/qvnc_p.h
index 338fae9f87..f7f2f74ddb 100644
--- a/src/plugins/platforms/vnc/qvnc_p.h
+++ b/src/plugins/platforms/vnc/qvnc_p.h
@@ -139,7 +139,7 @@ public:
 class QRfbServerInit
 {
 public:
-    QRfbServerInit() { name = 0; }
+    QRfbServerInit() { name = nullptr; }
     ~QRfbServerInit() { delete[] name; }
 
     int size() const { return QRfbPixelFormat::size() + 8 + strlen(name); }
diff --git a/src/plugins/platforms/vnc/qvncscreen.h b/src/plugins/platforms/vnc/qvncscreen.h
index e69aa90d41..db658d4ecc 100644
--- a/src/plugins/platforms/vnc/qvncscreen.h
+++ b/src/plugins/platforms/vnc/qvncscreen.h
@@ -82,12 +82,12 @@ public:
 
     qreal dpiX = 96;
     qreal dpiY = 96;
-    QVncDirtyMap *dirty = 0;
+    QVncDirtyMap *dirty = nullptr;
     QRegion dirtyRegion;
     int refreshRate = 30;
-    QVncServer *vncServer = 0;
+    QVncServer *vncServer = nullptr;
 #if QT_CONFIG(cursor)
-    QVncClientCursor *clientCursor = 0;
+    QVncClientCursor *clientCursor = nullptr;
 #endif
 };
 
diff --git a/src/plugins/platforms/wasm/qtlogo.svg b/src/plugins/platforms/wasm/qtlogo.svg
index cb8989bb79..ad7c7776bf 100644
--- a/src/plugins/platforms/wasm/qtlogo.svg
+++ b/src/plugins/platforms/wasm/qtlogo.svg
@@ -5,15 +5,10 @@
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:svg="http://www.w3.org/2000/svg"
    xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    width="462pt"
    height="339pt"
    viewBox="0 0 462 339"
-   version="1.1"
-   id="svg2"
-   inkscape:version="0.91 r13725"
-   sodipodi:docname="TheQtCompany_logo_2.svg">
+   version="1.1">
   <metadata
      id="metadata20">
     <rdf:RDF>
@@ -26,28 +21,6 @@
       </cc:Work>
     </rdf:RDF>
   </metadata>
-  <defs
-     id="defs18" />
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1536"
-     inkscape:window-height="801"
-     id="namedview16"
-     showgrid="false"
-     inkscape:zoom="1.1138643"
-     inkscape:cx="270.58047"
-     inkscape:cy="174.65092"
-     inkscape:window-x="-8"
-     inkscape:window-y="-8"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="svg2" />
   <path
      fill="#41cd52"
      d=" M 63.50 0.00 L 462.00 0.00 L 462.00 274.79 C 440.60 296.26 419.13 317.66 397.61 339.00 L 0.00 339.00 L 0.00 63.39 C 21.08 42.18 42.34 21.13 63.50 0.00 Z"
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index 80517ffe69..9ab9c2708b 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -590,7 +590,7 @@ QString QWindowsContext::registerWindowClass(QString cname,
 
     d->m_registeredWindowClassNames.insert(cname);
     qCDebug(lcQpaWindows).nospace() << __FUNCTION__ << ' ' << cname
-        << " style=0x" << hex << style << dec
+        << " style=0x" << Qt::hex << style << Qt::dec
         << " brush=" << brush << " icon=" << icon << " atom=" << atom;
     return cname;
 }
@@ -1570,7 +1570,7 @@ extern "C" LRESULT QT_WIN_CALLBACK qWindowsWndProc(HWND hwnd, UINT message, WPAR
     if (QWindowsContext::verbose > 1 && lcQpaEvents().isDebugEnabled()) {
         if (const char *eventName = QWindowsGuiEventDispatcher::windowsMessageName(message)) {
             qCDebug(lcQpaEvents).nospace() << "EVENT: hwd=" << hwnd << ' ' << eventName
-                << " msg=0x" << hex << message << " et=0x" << et << dec << " wp="
+                << " msg=0x" << Qt::hex << message << " et=0x" << et << Qt::dec << " wp="
                 << int(wParam) << " at " << GET_X_LPARAM(lParam) << ','
                 << GET_Y_LPARAM(lParam) << " handled=" << handled;
         }
@@ -1605,7 +1605,11 @@ static inline QByteArray nativeEventType() { return QByteArrayLiteral("windows_g
 bool QWindowsContext::filterNativeEvent(MSG *msg, LRESULT *result)
 {
     QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr filterResult = 0;
+#else
     long filterResult = 0;
+#endif
     if (dispatcher && dispatcher->filterNativeEvent(nativeEventType(), msg, &filterResult)) {
         *result = LRESULT(filterResult);
         return true;
@@ -1616,7 +1620,11 @@ bool QWindowsContext::filterNativeEvent(MSG *msg, LRESULT *result)
 // Send to QWindowSystemInterface
 bool QWindowsContext::filterNativeEvent(QWindow *window, MSG *msg, LRESULT *result)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr filterResult = 0;
+#else
     long filterResult = 0;
+#endif
     if (QWindowSystemInterface::handleNativeEvent(window, nativeEventType(), msg, &filterResult)) {
         *result = LRESULT(filterResult);
         return true;
diff --git a/src/plugins/platforms/windows/qwindowscursor.h b/src/plugins/platforms/windows/qwindowscursor.h
index 8495b51a5a..2e57c80def 100644
--- a/src/plugins/platforms/windows/qwindowscursor.h
+++ b/src/plugins/platforms/windows/qwindowscursor.h
@@ -61,7 +61,7 @@ inline bool operator==(const QWindowsPixmapCursorCacheKey &k1, const QWindowsPix
     return k1.bitmapCacheKey == k2.bitmapCacheKey && k1.maskCacheKey == k2.maskCacheKey;
 }
 
-inline uint qHash(const QWindowsPixmapCursorCacheKey &k, uint seed) Q_DECL_NOTHROW
+inline uint qHash(const QWindowsPixmapCursorCacheKey &k, uint seed) noexcept
 {
     return (uint(k.bitmapCacheKey) + uint(k.maskCacheKey)) ^ seed;
 }
diff --git a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
index 9de3268fc8..e0bd38c951 100644
--- a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
+++ b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
@@ -736,7 +736,7 @@ QString QWindowsShellItem::libraryItemDefaultSaveFolder(IShellItem *item)
 #ifndef QT_NO_DEBUG_STREAM
 void QWindowsShellItem::format(QDebug &d) const
 {
-    d << "attributes=0x" << hex << attributes() << dec;
+    d << "attributes=0x" << Qt::hex << attributes() << Qt::dec;
     if (isFileSystem())
         d << " [filesys]";
     if (isDir())
@@ -972,7 +972,7 @@ void QWindowsNativeFileDialogBase::doExec(HWND owner)
     // gets a WM_CLOSE or the parent window is destroyed.
     const HRESULT hr = m_fileDialog->Show(owner);
     QWindowsDialogs::eatMouseMove();
-    qCDebug(lcQpaDialogs) << '<' << __FUNCTION__ << " returns " << hex << hr;
+    qCDebug(lcQpaDialogs) << '<' << __FUNCTION__ << " returns " << Qt::hex << hr;
     // Emit accepted() only if there is a result as otherwise UI hangs occur.
     // For example, typing in invalid URLs results in empty result lists.
     if (hr == S_OK && !m_data.selectedFiles().isEmpty()) {
@@ -1013,7 +1013,7 @@ void QWindowsNativeFileDialogBase::setMode(QFileDialogOptions::FileMode mode,
     }
     qCDebug(lcQpaDialogs) << __FUNCTION__ << "mode=" << mode
         << "acceptMode=" << acceptMode << "options=" << options
-        << "results in" << showbase << hex << flags;
+        << "results in" << Qt::showbase << Qt::hex << flags;
 
     if (FAILED(m_fileDialog->SetOptions(flags)))
         qErrnoWarning("%s: SetOptions() failed", __FUNCTION__);
diff --git a/src/plugins/platforms/windows/qwindowsdrag.cpp b/src/plugins/platforms/windows/qwindowsdrag.cpp
index 322865b0f3..502c92ef59 100644
--- a/src/plugins/platforms/windows/qwindowsdrag.cpp
+++ b/src/plugins/platforms/windows/qwindowsdrag.cpp
@@ -428,7 +428,7 @@ QWindowsOleDropSource::QueryContinueDrag(BOOL fEscapePressed, DWORD grfKeyState)
     if (QWindowsContext::verbose > 1 || result != S_OK) {
         qCDebug(lcQpaMime) << __FUNCTION__ << "fEscapePressed=" << fEscapePressed
             << "grfKeyState=" << grfKeyState << "buttons" << m_currentButtons
-            << "returns 0x" << hex << int(result) << dec;
+            << "returns 0x" << Qt::hex << int(result) << Qt::dec;
     }
     return ResultFromScode(result);
 }
@@ -710,7 +710,7 @@ Qt::DropAction QWindowsDrag::drag(QDrag *drag)
     const Qt::DropActions possibleActions = drag->supportedActions();
     const DWORD allowedEffects = translateToWinDragEffects(possibleActions);
     qCDebug(lcQpaMime) << '>' << __FUNCTION__ << "possible Actions=0x"
-        << hex << int(possibleActions) << "effects=0x" << allowedEffects << dec;
+        << Qt::hex << int(possibleActions) << "effects=0x" << allowedEffects << Qt::dec;
     // Indicate message handlers we are in DoDragDrop() event loop.
     QWindowsDrag::m_dragging = true;
     const HRESULT r = DoDragDrop(dropDataObject, windowDropSource, allowedEffects, &resultEffect);
@@ -734,9 +734,9 @@ Qt::DropAction QWindowsDrag::drag(QDrag *drag)
     dropDataObject->releaseQt();
     dropDataObject->Release();        // Will delete obj if refcount becomes 0
     windowDropSource->Release();        // Will delete src if refcount becomes 0
-    qCDebug(lcQpaMime) << '<' << __FUNCTION__ << hex << "allowedEffects=0x" << allowedEffects
+    qCDebug(lcQpaMime) << '<' << __FUNCTION__ << Qt::hex << "allowedEffects=0x" << allowedEffects
         << "reportedPerformedEffect=0x" << reportedPerformedEffect
-        <<  " resultEffect=0x" << resultEffect << "hr=0x" << int(r) << dec << "dropAction=" << dragResult;
+        <<  " resultEffect=0x" << resultEffect << "hr=0x" << int(r) << Qt::dec << "dropAction=" << dragResult;
     return dragResult;
 }
 
diff --git a/src/plugins/platforms/windows/qwindowsglcontext.cpp b/src/plugins/platforms/windows/qwindowsglcontext.cpp
index e95eaef420..d534ce87cd 100644
--- a/src/plugins/platforms/windows/qwindowsglcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsglcontext.cpp
@@ -243,7 +243,7 @@ QDebug operator<<(QDebug d, const PIXELFORMATDESCRIPTOR &pd)
     QDebugStateSaver saver(d);
     d.nospace();
     d << "PIXELFORMATDESCRIPTOR "
-        << "dwFlags=" << hex << showbase << pd.dwFlags << dec << noshowbase;
+        << "dwFlags=" << Qt::hex << Qt::showbase << pd.dwFlags << Qt::dec << Qt::noshowbase;
     if (pd.dwFlags & PFD_DRAW_TO_WINDOW) d << " PFD_DRAW_TO_WINDOW";
     if (pd.dwFlags & PFD_DRAW_TO_BITMAP) d << " PFD_DRAW_TO_BITMAP";
     if (pd.dwFlags & PFD_SUPPORT_GDI) d << " PFD_SUPPORT_GDI";
@@ -631,10 +631,10 @@ static int choosePixelFormat(HDC hdc,
         nsp << __FUNCTION__;
         if (sampleBuffersRequested)
             nsp << " samples=" << iAttributes[samplesValuePosition];
-        nsp << " Attributes: " << hex << showbase;
+        nsp << " Attributes: " << Qt::hex << Qt::showbase;
         for (int ii = 0; ii < i; ++ii)
             nsp << iAttributes[ii] << ',';
-        nsp << noshowbase << dec << "\n    obtained px #" << pixelFormat
+        nsp << Qt::noshowbase << Qt::dec << "\n    obtained px #" << pixelFormat
             << " of " << numFormats << "\n    " << *obtainedPfd;
         qCDebug(lcQpaGl) << message;
     } // Debug
@@ -784,7 +784,7 @@ static HGLRC createContext(const QOpenGLStaticContext &staticContext,
     if (!result) {
         QString message;
         QDebug(&message).nospace() << __FUNCTION__ << ": wglCreateContextAttribsARB() failed (GL error code: 0x"
-            << hex << staticContext.opengl32.glGetError() << dec << ") for format: " << format << ", shared context: " << shared;
+            << Qt::hex << staticContext.opengl32.glGetError() << Qt::dec << ") for format: " << format << ", shared context: " << shared;
         qErrnoWarning("%s", qPrintable(message));
     }
     return result;
diff --git a/src/plugins/platforms/windows/qwindowsinputcontext.cpp b/src/plugins/platforms/windows/qwindowsinputcontext.cpp
index 878f55e56b..71ed33f85b 100644
--- a/src/plugins/platforms/windows/qwindowsinputcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsinputcontext.cpp
@@ -657,9 +657,9 @@ void QWindowsInputContext::handleInputLanguageChanged(WPARAM wparam, LPARAM lpar
     m_locale = qt_localeFromLCID(m_languageId);
     emitLocaleChanged();
 
-    qCDebug(lcQpaInputMethods) << __FUNCTION__ << hex << showbase
+    qCDebug(lcQpaInputMethods) << __FUNCTION__ << Qt::hex << Qt::showbase
         << oldLanguageId  << "->" << newLanguageId << "Character set:"
-        << DWORD(wparam) << dec << noshowbase << m_locale;
+        << DWORD(wparam) << Qt::dec << Qt::noshowbase << m_locale;
 }
 
 /*!
diff --git a/src/plugins/platforms/windows/qwindowsintegration.cpp b/src/plugins/platforms/windows/qwindowsintegration.cpp
index 2c90b0484e..e896f9f0ee 100644
--- a/src/plugins/platforms/windows/qwindowsintegration.cpp
+++ b/src/plugins/platforms/windows/qwindowsintegration.cpp
@@ -324,7 +324,7 @@ QPlatformWindow *QWindowsIntegration::createPlatformWindow(QWindow *window) cons
     if (window->type() == Qt::Desktop) {
         QWindowsDesktopWindow *result = new QWindowsDesktopWindow(window);
         qCDebug(lcQpaWindows) << "Desktop window:" << window
-            << showbase << hex << result->winId() << noshowbase << dec << result->geometry();
+            << Qt::showbase << Qt::hex << result->winId() << Qt::noshowbase << Qt::dec << result->geometry();
         return result;
     }
 
@@ -373,8 +373,8 @@ QPlatformWindow *QWindowsIntegration::createForeignWindow(QWindow *window, WId n
         screen = pScreen->screen();
     if (screen && screen != window->screen())
         window->setScreen(screen);
-    qCDebug(lcQpaWindows) << "Foreign window:" << window << showbase << hex
-        << result->winId() << noshowbase << dec << obtainedGeometry << screen;
+    qCDebug(lcQpaWindows) << "Foreign window:" << window << Qt::showbase << Qt::hex
+        << result->winId() << Qt::noshowbase << Qt::dec << obtainedGeometry << screen;
     return result;
 }
 
diff --git a/src/plugins/platforms/windows/qwindowskeymapper.cpp b/src/plugins/platforms/windows/qwindowskeymapper.cpp
index c5af4d8042..44668cde78 100644
--- a/src/plugins/platforms/windows/qwindowskeymapper.cpp
+++ b/src/plugins/platforms/windows/qwindowskeymapper.cpp
@@ -554,7 +554,7 @@ QDebug operator<<(QDebug d, const KeyboardLayoutItem &k)
             if (const quint32 qtKey = k.qtKey[i]) {
                 d << '[' << i << ' ';
                 QtDebugUtils::formatQFlags(d, ModsTbl[i]);
-                d << ' ' << hex << showbase << qtKey << dec << noshowbase << ' ';
+                d << ' ' << Qt::hex << Qt::showbase << qtKey << Qt::dec << Qt::noshowbase << ' ';
                 QtDebugUtils::formatQEnum(d, Qt::Key(qtKey));
                 if (qtKey >= 32 && qtKey < 128)
                     d << " '" << char(qtKey)  << '\'';
@@ -776,7 +776,7 @@ void QWindowsKeyMapper::updatePossibleKeyCodes(unsigned char *kbdBuffer, quint32
         ::ToAscii(vk_key, scancode, kbdBuffer, reinterpret_cast<LPWORD>(&buffer), 0);
     }
     qCDebug(lcQpaEvents) << __FUNCTION__ << "for virtual key="
-        << hex << showbase << vk_key << dec << noshowbase << keyLayout[vk_key];
+        << Qt::hex << Qt::showbase << vk_key << Qt::dec << Qt::noshowbase << keyLayout[vk_key];
 }
 
 static inline QString messageKeyText(const MSG &msg)
@@ -1384,7 +1384,7 @@ QList<int> QWindowsKeyMapper::possibleKeys(const QKeyEvent *e) const
         }
     }
     qCDebug(lcQpaEvents) << __FUNCTION__  << e << "nativeVirtualKey="
-        << showbase << hex << e->nativeVirtualKey() << dec << noshowbase
+        << Qt::showbase << Qt::hex << e->nativeVirtualKey() << Qt::dec << Qt::noshowbase
         << e->modifiers() << kbItem << "\n  returns" << formatKeys(result);
     return result;
 }
diff --git a/src/plugins/platforms/windows/qwindowsmenu.cpp b/src/plugins/platforms/windows/qwindowsmenu.cpp
index 5a92a7cf90..e55e283fe1 100644
--- a/src/plugins/platforms/windows/qwindowsmenu.cpp
+++ b/src/plugins/platforms/windows/qwindowsmenu.cpp
@@ -784,7 +784,7 @@ void QWindowsMenuBar::handleReparent(QWindow *newParentWindow)
     if (QPlatformWindow *platWin = newParentWindow->handle())
         install(static_cast<QWindowsWindow *>(platWin));
     else // Store for later creation, see menuBarOf()
-        newParentWindow->setProperty(menuBarPropertyName, qVariantFromValue<QObject *>(this));
+        newParentWindow->setProperty(menuBarPropertyName, QVariant::fromValue<QObject *>(this));
 }
 
 QWindowsMenuBar *QWindowsMenuBar::menuBarOf(const QWindow *notYetCreatedWindow)
@@ -896,8 +896,8 @@ void QWindowsMenuItem::formatDebug(QDebug &d) const
         d << ", parentMenu=" << static_cast<const void *>(m_parentMenu);
     if (m_subMenu)
         d << ", subMenu=" << static_cast<const void *>(m_subMenu);
-    d << ", tag=" << showbase << hex
-      << tag() << noshowbase << dec << ", id=" << m_id;
+    d << ", tag=" << Qt::showbase << Qt::hex
+      << tag() << Qt::noshowbase << Qt::dec << ", id=" << m_id;
 #if QT_CONFIG(shortcut)
     if (!m_shortcut.isEmpty())
         d << ", shortcut=" << m_shortcut;
@@ -933,7 +933,7 @@ void QWindowsMenu::formatDebug(QDebug &d) const
     if (m_parentMenu != nullptr)
         d << " [on menu]";
     if (tag())
-        d << ", tag=" << showbase << hex << tag() << noshowbase << dec;
+        d << ", tag=" << Qt::showbase << Qt::hex << tag() << Qt::noshowbase << Qt::dec;
     if (m_visible)
         d << " [visible]";
     if (m_enabled)
diff --git a/src/plugins/platforms/windows/qwindowsmousehandler.cpp b/src/plugins/platforms/windows/qwindowsmousehandler.cpp
index 737fd1d2a9..c4d53855a5 100644
--- a/src/plugins/platforms/windows/qwindowsmousehandler.cpp
+++ b/src/plugins/platforms/windows/qwindowsmousehandler.cpp
@@ -124,8 +124,8 @@ static inline QTouchDevice *createTouchDevice()
         return nullptr;
     const int tabletPc = GetSystemMetrics(SM_TABLETPC);
     const int maxTouchPoints = GetSystemMetrics(SM_MAXIMUMTOUCHES);
-    qCDebug(lcQpaEvents) << "Digitizers:" << hex << showbase << (digitizers & ~NID_READY)
-        << "Ready:" << (digitizers & NID_READY) << dec << noshowbase
+    qCDebug(lcQpaEvents) << "Digitizers:" << Qt::hex << Qt::showbase << (digitizers & ~NID_READY)
+        << "Ready:" << (digitizers & NID_READY) << Qt::dec << Qt::noshowbase
         << "Tablet PC:" << tabletPc << "Max touch points:" << maxTouchPoints;
     QTouchDevice *result = new QTouchDevice;
     result->setType(digitizers & NID_INTEGRATED_TOUCH
diff --git a/src/plugins/platforms/windows/qwindowsnativeinterface.cpp b/src/plugins/platforms/windows/qwindowsnativeinterface.cpp
index 9003e94c56..e581b30ced 100644
--- a/src/plugins/platforms/windows/qwindowsnativeinterface.cpp
+++ b/src/plugins/platforms/windows/qwindowsnativeinterface.cpp
@@ -40,6 +40,7 @@
 #include "qwindowsnativeinterface.h"
 #include "qwindowsclipboard.h"
 #include "qwindowswindow.h"
+#include "qwindowsscreen.h"
 #include "qwindowscontext.h"
 #include "qwindowscursor.h"
 #include "qwindowsopenglcontext.h"
@@ -124,6 +125,21 @@ void *QWindowsNativeInterface::nativeResourceForWindow(const QByteArray &resourc
     return nullptr;
 }
 
+void *QWindowsNativeInterface::nativeResourceForScreen(const QByteArray &resource, QScreen *screen)
+{
+    if (!screen || !screen->handle()) {
+        qWarning("%s: '%s' requested for null screen or screen without handle.", __FUNCTION__, resource.constData());
+        return nullptr;
+    }
+    QWindowsScreen *bs = static_cast<QWindowsScreen *>(screen->handle());
+    int type = resourceType(resource);
+    if (type == HandleType)
+        return bs->handle();
+
+    qWarning("%s: Invalid key '%s' requested.", __FUNCTION__, resource.constData());
+    return nullptr;
+}
+
 #ifndef QT_NO_CURSOR
 void *QWindowsNativeInterface::nativeResourceForCursor(const QByteArray &resource, const QCursor &cursor)
 {
@@ -143,7 +159,7 @@ QVariant QWindowsNativeInterface::windowProperty(QPlatformWindow *window, const
 {
     QWindowsWindow *platformWindow = static_cast<QWindowsWindow *>(window);
     if (name == QLatin1String(customMarginPropertyC))
-        return qVariantFromValue(platformWindow->customMargins());
+        return QVariant::fromValue(platformWindow->customMargins());
     return QVariant();
 }
 
diff --git a/src/plugins/platforms/windows/qwindowsnativeinterface.h b/src/plugins/platforms/windows/qwindowsnativeinterface.h
index e6f8aae8fb..ce395dc5a4 100644
--- a/src/plugins/platforms/windows/qwindowsnativeinterface.h
+++ b/src/plugins/platforms/windows/qwindowsnativeinterface.h
@@ -74,6 +74,7 @@ public:
     void *nativeResourceForContext(const QByteArray &resource, QOpenGLContext *context) override;
 #endif
     void *nativeResourceForWindow(const QByteArray &resource, QWindow *window) override;
+    void *nativeResourceForScreen(const QByteArray &resource, QScreen *screen) override;
 #ifndef QT_NO_CURSOR
     void *nativeResourceForCursor(const QByteArray &resource, const QCursor &cursor) override;
 #endif
diff --git a/src/plugins/platforms/windows/qwindowsole.cpp b/src/plugins/platforms/windows/qwindowsole.cpp
index e9c3f2cbf6..fb6a74581a 100644
--- a/src/plugins/platforms/windows/qwindowsole.cpp
+++ b/src/plugins/platforms/windows/qwindowsole.cpp
@@ -110,7 +110,7 @@ QWindowsOleDataObject::GetData(LPFORMATETC pformatetc, LPSTGMEDIUM pmedium)
     }
 
     if (QWindowsContext::verbose > 1 && lcQpaMime().isDebugEnabled())
-        qCDebug(lcQpaMime) <<__FUNCTION__ << *pformatetc << "returns" << hex << showbase << quint64(hr);
+        qCDebug(lcQpaMime) <<__FUNCTION__ << *pformatetc << "returns" << Qt::hex << Qt::showbase << quint64(hr);
 
     return hr;
 }
@@ -135,7 +135,7 @@ QWindowsOleDataObject::QueryGetData(LPFORMATETC pformatetc)
              ResultFromScode(S_OK) : ResultFromScode(S_FALSE);
     }
     if (QWindowsContext::verbose > 1)
-        qCDebug(lcQpaMime) <<  __FUNCTION__ << " returns 0x" << hex << int(hr);
+        qCDebug(lcQpaMime) <<  __FUNCTION__ << " returns 0x" << Qt::hex << int(hr);
     return hr;
 }
 
@@ -163,7 +163,7 @@ QWindowsOleDataObject::SetData(LPFORMATETC pFormatetc, STGMEDIUM *pMedium, BOOL
         hr = ResultFromScode(S_OK);
     }
     if (QWindowsContext::verbose > 1)
-        qCDebug(lcQpaMime) <<  __FUNCTION__ << " returns 0x" << hex << int(hr);
+        qCDebug(lcQpaMime) <<  __FUNCTION__ << " returns 0x" << Qt::hex << int(hr);
     return hr;
 }
 
diff --git a/src/plugins/platforms/windows/qwindowsopengltester.cpp b/src/plugins/platforms/windows/qwindowsopengltester.cpp
index 840a3a11c4..35418a18e7 100644
--- a/src/plugins/platforms/windows/qwindowsopengltester.cpp
+++ b/src/plugins/platforms/windows/qwindowsopengltester.cpp
@@ -188,9 +188,9 @@ QDebug operator<<(QDebug d, const GpuDescription &gd)
 {
     QDebugStateSaver s(d);
     d.nospace();
-    d << hex << showbase << "GpuDescription(vendorId=" << gd.vendorId
+    d << Qt::hex << Qt::showbase << "GpuDescription(vendorId=" << gd.vendorId
       << ", deviceId=" << gd.deviceId << ", subSysId=" << gd.subSysId
-      << dec << noshowbase << ", revision=" << gd.revision
+      << Qt::dec << Qt::noshowbase << ", revision=" << gd.revision
       << ", driver: " << gd.driverName
       << ", version=" << gd.driverVersion << ", " << gd.description
       << gd.gpuSuitableScreen << ')';
@@ -207,11 +207,11 @@ QString GpuDescription::toString() const
         << "\n       Driver Name         : " << driverName
         << "\n    Driver Version         : " << driverVersion.toString()
         << "\n         Vendor ID         : 0x" << qSetPadChar(QLatin1Char('0'))
-        << uppercasedigits << hex << qSetFieldWidth(4) << vendorId
+        << Qt::uppercasedigits << Qt::hex << qSetFieldWidth(4) << vendorId
         << "\n         Device ID         : 0x" << qSetFieldWidth(4) << deviceId
         << "\n         SubSys ID         : 0x" << qSetFieldWidth(8) << subSysId
         << "\n       Revision ID         : 0x" << qSetFieldWidth(4) << revision
-        << dec;
+        << Qt::dec;
     if (!gpuSuitableScreen.isEmpty())
         str << "\nGL windows forced to screen: " << gpuSuitableScreen;
     return result;
diff --git a/src/plugins/platforms/windows/qwindowspointerhandler.cpp b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
index 501b62e07a..b730dbcf3b 100644
--- a/src/plugins/platforms/windows/qwindowspointerhandler.cpp
+++ b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
@@ -315,8 +315,8 @@ static QTouchDevice *createTouchDevice()
         return nullptr;
     const int tabletPc = GetSystemMetrics(SM_TABLETPC);
     const int maxTouchPoints = GetSystemMetrics(SM_MAXIMUMTOUCHES);
-    qCDebug(lcQpaEvents) << "Digitizers:" << hex << showbase << (digitizers & ~NID_READY)
-        << "Ready:" << (digitizers & NID_READY) << dec << noshowbase
+    qCDebug(lcQpaEvents) << "Digitizers:" << Qt::hex << Qt::showbase << (digitizers & ~NID_READY)
+        << "Ready:" << (digitizers & NID_READY) << Qt::dec << Qt::noshowbase
         << "Tablet PC:" << tabletPc << "Max touch points:" << maxTouchPoints;
     QTouchDevice *result = new QTouchDevice;
     result->setType(digitizers & NID_INTEGRATED_TOUCH
@@ -469,19 +469,19 @@ bool QWindowsPointerHandler::translateTouchEvent(QWindow *window, HWND hwnd,
     QList<QWindowSystemInterface::TouchPoint> touchPoints;
 
     if (QWindowsContext::verbose > 1)
-        qCDebug(lcQpaEvents).noquote().nospace() << showbase
+        qCDebug(lcQpaEvents).noquote().nospace() << Qt::showbase
                 << __FUNCTION__
-                << " message=" << hex << msg.message
-                << " count=" << dec << count;
+                << " message=" << Qt::hex << msg.message
+                << " count=" << Qt::dec << count;
 
     Qt::TouchPointStates allStates = 0;
 
     for (quint32 i = 0; i < count; ++i) {
         if (QWindowsContext::verbose > 1)
-            qCDebug(lcQpaEvents).noquote().nospace() << showbase
+            qCDebug(lcQpaEvents).noquote().nospace() << Qt::showbase
                     << "    TouchPoint id=" << touchInfo[i].pointerInfo.pointerId
                     << " frame=" << touchInfo[i].pointerInfo.frameId
-                    << " flags=" << hex << touchInfo[i].pointerInfo.pointerFlags;
+                    << " flags=" << Qt::hex << touchInfo[i].pointerInfo.pointerFlags;
 
         QWindowSystemInterface::TouchPoint touchPoint;
         const quint32 pointerId = touchInfo[i].pointerInfo.pointerId;
@@ -563,11 +563,11 @@ bool QWindowsPointerHandler::translatePenEvent(QWindow *window, HWND hwnd, QtWin
     const int z = 0;
 
     if (QWindowsContext::verbose > 1)
-        qCDebug(lcQpaEvents).noquote().nospace() << showbase
+        qCDebug(lcQpaEvents).noquote().nospace() << Qt::showbase
             << __FUNCTION__ << " sourceDevice=" << sourceDevice
             << " globalPos=" << globalPos << " localPos=" << localPos << " hiResGlobalPos=" << hiResGlobalPos
-            << " message=" << hex << msg.message
-            << " flags=" << hex << penInfo->pointerInfo.pointerFlags;
+            << " message=" << Qt::hex << msg.message
+            << " flags=" << Qt::hex << penInfo->pointerInfo.pointerFlags;
 
     const QTabletEvent::TabletDevice device = QTabletEvent::Stylus;
     QTabletEvent::PointerType type;
diff --git a/src/plugins/platforms/windows/qwindowsscreen.cpp b/src/plugins/platforms/windows/qwindowsscreen.cpp
index 0520f88935..b70b0bbe31 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.cpp
+++ b/src/plugins/platforms/windows/qwindowsscreen.cpp
@@ -321,6 +321,11 @@ void QWindowsScreen::handleChanges(const QWindowsScreenData &newData)
     }
 }
 
+HMONITOR QWindowsScreen::handle() const
+{
+    return m_data.hMonitor;
+}
+
 QRect QWindowsScreen::virtualGeometry(const QPlatformScreen *screen) // cf QScreen::virtualGeometry()
 {
     QRect result;
diff --git a/src/plugins/platforms/windows/qwindowsscreen.h b/src/plugins/platforms/windows/qwindowsscreen.h
index 824bcb1ad6..33c9effa2a 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.h
+++ b/src/plugins/platforms/windows/qwindowsscreen.h
@@ -104,6 +104,8 @@ public:
 
     inline void handleChanges(const QWindowsScreenData &newData);
 
+    HMONITOR handle() const;
+
 #ifndef QT_NO_CURSOR
     QPlatformCursor *cursor() const override { return m_cursor.data(); }
     const CursorPtr &cursorPtr() const { return m_cursor; }
diff --git a/src/plugins/platforms/windows/qwindowstabletsupport.cpp b/src/plugins/platforms/windows/qwindowstabletsupport.cpp
index 44b94d044d..cd5a78abb6 100644
--- a/src/plugins/platforms/windows/qwindowstabletsupport.cpp
+++ b/src/plugins/platforms/windows/qwindowstabletsupport.cpp
@@ -146,13 +146,13 @@ QDebug operator<<(QDebug d, const LOGCONTEXT &lc)
     QDebugStateSaver saver(d);
     d.nospace();
     d << "LOGCONTEXT(\"" << QString::fromWCharArray(lc.lcName) << "\", options=0x"
-        << hex << lc.lcOptions << dec;
+        << Qt::hex << lc.lcOptions << Qt::dec;
     formatOptions(d, lc.lcOptions);
-    d << ", status=0x" << hex << lc.lcStatus << ", device=0x" << lc.lcDevice
-        << dec << ", PktRate=" << lc.lcPktRate
+    d << ", status=0x" << Qt::hex << lc.lcStatus << ", device=0x" << lc.lcDevice
+        << Qt::dec << ", PktRate=" << lc.lcPktRate
         << ", PktData=" << lc.lcPktData << ", PktMode=" << lc.lcPktMode
-        << ", MoveMask=0x" << hex << lc.lcMoveMask << ", BtnDnMask=0x" << lc.lcBtnDnMask
-        << ", BtnUpMask=0x" << lc.lcBtnUpMask << dec << ", SysMode=" << lc.lcSysMode
+        << ", MoveMask=0x" << Qt::hex << lc.lcMoveMask << ", BtnDnMask=0x" << lc.lcBtnDnMask
+        << ", BtnUpMask=0x" << lc.lcBtnUpMask << Qt::dec << ", SysMode=" << lc.lcSysMode
         << ", InOrg=(" << lc.lcInOrgX << ", " << lc.lcInOrgY << ", " << lc.lcInOrgZ
         <<  "), InExt=(" << lc.lcInExtX << ", " << lc.lcInExtY << ", " << lc.lcInExtZ
         << ") OutOrg=(" << lc.lcOutOrgX << ", " << lc.lcOutOrgY << ", "
@@ -305,7 +305,7 @@ QString QWindowsTabletSupport::description() const
         << '.' << (specificationVersion & 0xFF) << " implementation: v"
         << (implementationVersion >> 8) << '.' << (implementationVersion & 0xFF)
         << ' ' << devices << " device(s), " << cursors << " cursor(s), "
-        << extensions << " extensions" << ", options: 0x" << hex << opts << dec;
+        << extensions << " extensions" << ", options: 0x" << Qt::hex << opts << Qt::dec;
     formatOptions(str, opts);
     if (m_tiltSupport)
         str << " tilt";
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index a36317c70a..546c976409 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -238,7 +238,7 @@ QDebug operator<<(QDebug d, const WINDOWPLACEMENT &wp)
     QDebugStateSaver saver(d);
     d.nospace();
     d.noquote();
-    d <<  "WINDOWPLACEMENT(flags=0x" << hex << wp.flags << dec << ", showCmd="
+    d <<  "WINDOWPLACEMENT(flags=0x" << Qt::hex << wp.flags << Qt::dec << ", showCmd="
         << wp.showCmd << ", ptMinPosition=" << wp.ptMinPosition << ", ptMaxPosition=" << wp.ptMaxPosition
         << ", rcNormalPosition=" << wp.rcNormalPosition;
     return d;
@@ -248,7 +248,7 @@ QDebug operator<<(QDebug d, const GUID &guid)
 {
     QDebugStateSaver saver(d);
     d.nospace();
-    d << '{' << hex << uppercasedigits << qSetPadChar(QLatin1Char('0'))
+    d << '{' << Qt::hex << Qt::uppercasedigits << qSetPadChar(QLatin1Char('0'))
       << qSetFieldWidth(8) << guid.Data1
       << qSetFieldWidth(0) << '-' << qSetFieldWidth(4)
       << guid.Data2 << qSetFieldWidth(0) << '-' << qSetFieldWidth(4)
@@ -883,7 +883,7 @@ QMargins QWindowsGeometryHint::frame(DWORD style, DWORD exStyle)
     const QMargins result(qAbs(rect.left), qAbs(rect.top),
                           qAbs(rect.right), qAbs(rect.bottom));
     qCDebug(lcQpaWindows).nospace() << __FUNCTION__ << " style="
-        << showbase << hex << style << " exStyle=" << exStyle << dec << noshowbase
+        << Qt::showbase << Qt::hex << style << " exStyle=" << exStyle << Qt::dec << Qt::noshowbase
         << ' ' << rect << ' ' << result;
     return result;
 }
diff --git a/src/plugins/platforms/windows/uiautomation/uiautomation.pri b/src/plugins/platforms/windows/uiautomation/uiautomation.pri
index e3071766d9..b79e42cdec 100644
--- a/src/plugins/platforms/windows/uiautomation/uiautomation.pri
+++ b/src/plugins/platforms/windows/uiautomation/uiautomation.pri
@@ -39,5 +39,4 @@ HEADERS += \
     $$PWD/qwindowsuiagriditemprovider.h \
     $$PWD/qwindowsuiautils.h
 
-mingw: LIBS *= -luuid
-
+mingw: QMAKE_USE *= uuid
diff --git a/src/plugins/platforms/windows/windows.pri b/src/plugins/platforms/windows/windows.pri
index 7004d7e854..95ba961df1 100644
--- a/src/plugins/platforms/windows/windows.pri
+++ b/src/plugins/platforms/windows/windows.pri
@@ -1,15 +1,21 @@
 # Note: OpenGL32 must precede Gdi32 as it overwrites some functions.
-LIBS += -lole32 -luser32 -lwinspool -limm32 -lwinmm -loleaut32
+LIBS += -lwinspool -limm32 -loleaut32
 
 QT_FOR_CONFIG += gui
 
 qtConfig(opengl):!qtConfig(opengles2):!qtConfig(dynamicgl): LIBS *= -lopengl32
 
-mingw: LIBS *= -luuid
+mingw: QMAKE_USE *= uuid
 # For the dialog helpers:
-LIBS += -lshlwapi -lshell32 -ladvapi32 -lwtsapi32
-
-QMAKE_USE_PRIVATE += d3d9/nolink
+LIBS += -lshlwapi -lwtsapi32
+
+QMAKE_USE_PRIVATE += \
+    advapi32 \
+    d3d9/nolink \
+    ole32 \
+    shell32 \
+    user32 \
+    winmm
 
 DEFINES *= QT_NO_CAST_FROM_ASCII QT_NO_FOREACH
 
diff --git a/src/plugins/platforms/windows/windows.pro b/src/plugins/platforms/windows/windows.pro
index 174bc7b609..50a3bb41a9 100644
--- a/src/plugins/platforms/windows/windows.pro
+++ b/src/plugins/platforms/windows/windows.pro
@@ -8,7 +8,8 @@ QT += \
 qtConfig(accessibility): QT += accessibility_support-private
 qtConfig(vulkan): QT += vulkan_support-private
 
-LIBS += -lgdi32 -ldwmapi
+LIBS += -ldwmapi
+QMAKE_USE_PRIVATE += gdi32
 
 include(windows.pri)
 
diff --git a/src/plugins/platforms/winrt/winrt.pro b/src/plugins/platforms/winrt/winrt.pro
index 43132a1a76..43dc8f074c 100644
--- a/src/plugins/platforms/winrt/winrt.pro
+++ b/src/plugins/platforms/winrt/winrt.pro
@@ -8,8 +8,7 @@ QT += \
 
 DEFINES *= QT_NO_CAST_FROM_ASCII __WRL_NO_DEFAULT_LIB__
 
-LIBS += -lws2_32
-QMAKE_USE_PRIVATE += d3d11
+QMAKE_USE_PRIVATE += d3d11 ws2_32
 
 SOURCES = \
     main.cpp  \
diff --git a/src/plugins/platforms/xcb/gl_integrations/qxcbglintegrationplugin.h b/src/plugins/platforms/xcb/gl_integrations/qxcbglintegrationplugin.h
index d5a0af97b0..b18248570f 100644
--- a/src/plugins/platforms/xcb/gl_integrations/qxcbglintegrationplugin.h
+++ b/src/plugins/platforms/xcb/gl_integrations/qxcbglintegrationplugin.h
@@ -54,7 +54,7 @@ class Q_XCB_EXPORT QXcbGlIntegrationPlugin : public QObject
 {
     Q_OBJECT
 public:
-        explicit QXcbGlIntegrationPlugin(QObject *parent = 0)
+        explicit QXcbGlIntegrationPlugin(QObject *parent = nullptr)
             : QObject(parent)
         { }
 
diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp
index b751aaf8a3..34895caaa2 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp
@@ -164,7 +164,11 @@ bool QXcbGlxIntegration::handleXcbEvent(xcb_generic_event_t *event, uint respons
                 XUnlockDisplay(xdisplay);
                 locked = false;
                 auto eventType = m_connection->nativeInterface()->nativeEventType();
+#  if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+                qintptr result = 0;
+#  else
                 long result = 0;
+#  endif
                 handled = dispatcher->filterNativeEvent(eventType, &ev, &result);
             }
 #endif
diff --git a/src/plugins/platforms/xcb/nativepainting/qpixmap_x11.cpp b/src/plugins/platforms/xcb/nativepainting/qpixmap_x11.cpp
index b1ce39f363..f86bedbdcd 100644
--- a/src/plugins/platforms/xcb/nativepainting/qpixmap_x11.cpp
+++ b/src/plugins/platforms/xcb/nativepainting/qpixmap_x11.cpp
@@ -2017,7 +2017,7 @@ QImage QX11PlatformPixmap::toImage(const QXImageWrapper &xiWrapper, const QRect
         }
     } else if (xi->bits_per_pixel == d) {        // compatible depth
         char *xidata = xi->data;                // copy each scanline
-        int bpl = qMin(image.bytesPerLine(),xi->bytes_per_line);
+        int bpl = qMin(int(image.bytesPerLine()),xi->bytes_per_line);
         for (int y=0; y<xi->height; y++) {
             memcpy(image.scanLine(y), xidata, bpl);
             xidata += xi->bytes_per_line;
diff --git a/src/plugins/platforms/xcb/nativepainting/qt_x11_p.h b/src/plugins/platforms/xcb/nativepainting/qt_x11_p.h
index a13a8f0483..1f7e7cf49b 100644
--- a/src/plugins/platforms/xcb/nativepainting/qt_x11_p.h
+++ b/src/plugins/platforms/xcb/nativepainting/qt_x11_p.h
@@ -190,7 +190,7 @@ struct QX11InfoData {
 };
 
 template <class T>
-Q_DECL_RELAXED_CONSTEXPR inline int lowest_bit(T v) Q_DECL_NOTHROW
+Q_DECL_RELAXED_CONSTEXPR inline int lowest_bit(T v) noexcept
 {
     int result = qCountTrailingZeroBits(v);
     return ((result >> 3) == sizeof(T)) ? -1 : result;
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index 06d1000993..d27a288feb 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -438,7 +438,11 @@ const char *xcb_protocol_request_codes[] =
 
 void QXcbConnection::handleXcbError(xcb_generic_error_t *error)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr result = 0;
+#else
     long result = 0;
+#endif
     QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
     if (dispatcher && dispatcher->filterNativeEvent(m_nativeInterface->nativeEventType(), error, &result))
         return;
@@ -535,7 +539,11 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
     if (Q_UNLIKELY(lcQpaEvents().isDebugEnabled()))
         printXcbEvent(lcQpaEvents(), "Event", event);
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr result = 0; // Used only by MS Windows
+#else
     long result = 0; // Used only by MS Windows
+#endif
     if (QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance()) {
         if (dispatcher->filterNativeEvent(m_nativeInterface->nativeEventType(), event, &result))
             return;
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index bbfa252881..7cf25d41a6 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -108,7 +108,7 @@ public:
     virtual void handleXIMouseEvent(xcb_ge_event_t *, Qt::MouseEventSource = Qt::MouseEventNotSynthesized) {}
     virtual void handleXIEnterLeave(xcb_ge_event_t *) {}
 #endif
-    virtual QXcbWindow *toWindow() { return 0; }
+    virtual QXcbWindow *toWindow() { return nullptr; }
 };
 
 typedef QHash<xcb_window_t, QXcbWindowEventListener *> WindowMapper;
@@ -366,7 +366,7 @@ private:
 
     WindowMapper m_mapper;
 
-    Qt::MouseButtons m_buttonState = 0;
+    Qt::MouseButtons m_buttonState = nullptr;
     Qt::MouseButton m_button = Qt::NoButton;
 
     QXcbWindow *m_focusWindow = nullptr;
diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.h b/src/plugins/platforms/xcb/qxcbconnection_basic.h
index b979129cba..1bd4310562 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_basic.h
+++ b/src/plugins/platforms/xcb/qxcbconnection_basic.h
@@ -163,7 +163,7 @@ private:
 #define Q_XCB_REPLY_CONNECTION_ARG(connection, ...) connection
 
 struct QStdFreeDeleter {
-    void operator()(void *p) const Q_DECL_NOTHROW { return std::free(p); }
+    void operator()(void *p) const noexcept { return std::free(p); }
 };
 
 #define Q_XCB_REPLY(call, ...) \
diff --git a/src/plugins/platforms/xcb/qxcbcursor.h b/src/plugins/platforms/xcb/qxcbcursor.h
index 5bc806381c..0b238823f0 100644
--- a/src/plugins/platforms/xcb/qxcbcursor.h
+++ b/src/plugins/platforms/xcb/qxcbcursor.h
@@ -65,7 +65,7 @@ inline bool operator==(const QXcbCursorCacheKey &k1, const QXcbCursorCacheKey &k
     return k1.shape == k2.shape && k1.bitmapCacheKey == k2.bitmapCacheKey && k1.maskCacheKey == k2.maskCacheKey;
 }
 
-inline uint qHash(const QXcbCursorCacheKey &k, uint seed) Q_DECL_NOTHROW
+inline uint qHash(const QXcbCursorCacheKey &k, uint seed) noexcept
 {
     return (uint(k.shape) + uint(k.bitmapCacheKey) + uint(k.maskCacheKey)) ^ seed;
 }
@@ -83,7 +83,7 @@ public:
     QPoint pos() const override;
     void setPos(const QPoint &pos) override;
 
-    static void queryPointer(QXcbConnection *c, QXcbVirtualDesktop **virtualDesktop, QPoint *pos, int *keybMask = 0);
+    static void queryPointer(QXcbConnection *c, QXcbVirtualDesktop **virtualDesktop, QPoint *pos, int *keybMask = nullptr);
 
 #ifndef QT_NO_CURSOR
     xcb_cursor_t xcbCursor(const QCursor &c) const
diff --git a/src/plugins/platforms/xcb/qxcbdrag.h b/src/plugins/platforms/xcb/qxcbdrag.h
index c19008c04b..1388e68acc 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.h
+++ b/src/plugins/platforms/xcb/qxcbdrag.h
@@ -86,7 +86,7 @@ public:
     void handlePosition(QPlatformWindow *w, const xcb_client_message_event_t *event);
     void handleLeave(QPlatformWindow *w, const xcb_client_message_event_t *event);
     void handleDrop(QPlatformWindow *, const xcb_client_message_event_t *event,
-                    Qt::MouseButtons b = 0, Qt::KeyboardModifiers mods = 0);
+                    Qt::MouseButtons b = nullptr, Qt::KeyboardModifiers mods = nullptr);
 
     void handleStatus(const xcb_client_message_event_t *event);
     void handleSelectionRequest(const xcb_selection_request_event_t *event);
@@ -109,7 +109,7 @@ private:
     void init();
 
     void handle_xdnd_position(QPlatformWindow *w, const xcb_client_message_event_t *event,
-                              Qt::MouseButtons b = 0, Qt::KeyboardModifiers mods = 0);
+                              Qt::MouseButtons b = nullptr, Qt::KeyboardModifiers mods = nullptr);
     void handle_xdnd_status(const xcb_client_message_event_t *event);
     void send_leave();
 
diff --git a/src/plugins/platforms/xcb/qxcbnativeinterface.cpp b/src/plugins/platforms/xcb/qxcbnativeinterface.cpp
index 899081e752..81b889a80f 100644
--- a/src/plugins/platforms/xcb/qxcbnativeinterface.cpp
+++ b/src/plugins/platforms/xcb/qxcbnativeinterface.cpp
@@ -636,13 +636,13 @@ static void dumpNativeWindowsRecursion(const QXcbConnection *connection, xcb_win
     const QChar oldPadChar =str.padChar();
     str.setFieldWidth(8);
     str.setPadChar(QLatin1Char('0'));
-    str << hex << window;
+    str << Qt::hex << window;
     str.setFieldWidth(oldFieldWidth);
     str.setPadChar(oldPadChar);
-    str << dec << " \""
+    str << Qt::dec << " \""
         << QXcbWindow::windowTitle(connection, window) << "\" "
-        << geom.width() << 'x' << geom.height() << forcesign << geom.x() << geom.y()
-        << noforcesign << '\n';
+        << geom.width() << 'x' << geom.height() << Qt::forcesign << geom.x() << geom.y()
+        << Qt::noforcesign << '\n';
 
     auto reply = Q_XCB_REPLY(xcb_query_tree, conn, window);
     if (reply) {
diff --git a/src/plugins/platforms/xcb/qxcbobject.h b/src/plugins/platforms/xcb/qxcbobject.h
index 1b98d9346b..931bed9ec1 100644
--- a/src/plugins/platforms/xcb/qxcbobject.h
+++ b/src/plugins/platforms/xcb/qxcbobject.h
@@ -47,7 +47,7 @@ QT_BEGIN_NAMESPACE
 class QXcbObject
 {
 public:
-    QXcbObject(QXcbConnection *connection = 0) : m_connection(connection) {}
+    QXcbObject(QXcbConnection *connection = nullptr) : m_connection(connection) {}
 
     void setConnection(QXcbConnection *connection) { m_connection = connection; }
     QXcbConnection *connection() const { return m_connection; }
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp
index 0fa0e8cd7b..bfc105a040 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -915,7 +915,7 @@ QByteArray QXcbScreen::getEdid() const
 static inline void formatRect(QDebug &debug, const QRect r)
 {
     debug << r.width() << 'x' << r.height()
-        << forcesign << r.x() << r.y() << noforcesign;
+        << Qt::forcesign << r.x() << r.y() << Qt::noforcesign;
 }
 
 static inline void formatSizeF(QDebug &debug, const QSizeF s)
@@ -929,7 +929,7 @@ QDebug operator<<(QDebug debug, const QXcbScreen *screen)
     debug.nospace();
     debug << "QXcbScreen(" << (const void *)screen;
     if (screen) {
-        debug << fixed << qSetRealNumberPrecision(1);
+        debug << Qt::fixed << qSetRealNumberPrecision(1);
         debug << ", name=" << screen->name();
         debug << ", geometry=";
         formatRect(debug, screen->geometry());
@@ -947,7 +947,7 @@ QDebug operator<<(QDebug debug, const QXcbScreen *screen)
         debug << "), orientation=" << screen->orientation();
         debug << ", depth=" << screen->depth();
         debug << ", refreshRate=" << screen->refreshRate();
-        debug << ", root=" << hex << screen->root();
+        debug << ", root=" << Qt::hex << screen->root();
         debug << ", windowManagerName=" << screen->windowManagerName();
     }
     debug << ')';
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 9382488b74..396b47001d 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -1657,7 +1657,11 @@ bool QXcbWindow::requestSystemTrayWindowDock()
 bool QXcbWindow::handleNativeEvent(xcb_generic_event_t *event)
 {
     auto eventType = connection()->nativeInterface()->nativeEventType();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    qintptr result = 0; // Used only by MS Windows
+#else
     long result = 0; // Used only by MS Windows
+#endif
     return QWindowSystemInterface::handleNativeEvent(window(), eventType, event, &result);
 }
 
diff --git a/src/plugins/platforms/xcb/qxcbwindow.h b/src/plugins/platforms/xcb/qxcbwindow.h
index f98cd8a74d..e4a04f5308 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.h
+++ b/src/plugins/platforms/xcb/qxcbwindow.h
@@ -166,7 +166,7 @@ public:
     bool needsSync() const;
 
     void postSyncWindowRequest();
-    void clearSyncWindowRequest() { m_pendingSyncRequest = 0; }
+    void clearSyncWindowRequest() { m_pendingSyncRequest = nullptr; }
 
     QXcbScreen *xcbScreen() const;
 
diff --git a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportaltheme.h b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportaltheme.h
index 3497c6a6f1..5cfc4df0d0 100644
--- a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportaltheme.h
+++ b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportaltheme.h
@@ -72,7 +72,7 @@ public:
 
     QPixmap standardPixmap(StandardPixmap sp, const QSizeF &size) const override;
     QIcon fileIcon(const QFileInfo &fileInfo,
-                   QPlatformTheme::IconOptions iconOptions = 0) const override;
+                   QPlatformTheme::IconOptions iconOptions = nullptr) const override;
 
     QIconEngine *createIconEngine(const QString &iconName) const override;
 
diff --git a/src/plugins/printsupport/windows/windows.pro b/src/plugins/printsupport/windows/windows.pro
index 06694fb7fe..6ca601b2a4 100644
--- a/src/plugins/printsupport/windows/windows.pro
+++ b/src/plugins/printsupport/windows/windows.pro
@@ -18,7 +18,8 @@ HEADERS += \
 
 OTHER_FILES += windows.json
 
-LIBS += -lwinspool -lcomdlg32 -lgdi32 -luser32
+LIBS += -lwinspool -lcomdlg32
+QMAKE_USE_PRIVATE += user32 gdi32
 
 PLUGIN_TYPE = printsupport
 PLUGIN_CLASS_NAME = QWindowsPrinterSupportPlugin
diff --git a/src/plugins/sqldrivers/odbc/qsql_odbc_p.h b/src/plugins/sqldrivers/odbc/qsql_odbc_p.h
index ea0aa6fc8b..ccd0206f38 100644
--- a/src/plugins/sqldrivers/odbc/qsql_odbc_p.h
+++ b/src/plugins/sqldrivers/odbc/qsql_odbc_p.h
@@ -89,8 +89,8 @@ class Q_EXPORT_SQLDRIVER_ODBC QODBCDriver : public QSqlDriver
     friend class QODBCResultPrivate;
 
 public:
-    explicit QODBCDriver(QObject *parent=0);
-    QODBCDriver(SQLHANDLE env, SQLHANDLE con, QObject * parent=0);
+    explicit QODBCDriver(QObject *parent=nullptr);
+    QODBCDriver(SQLHANDLE env, SQLHANDLE con, QObject * parent=nullptr);
     virtual ~QODBCDriver();
     bool hasFeature(DriverFeature f) const override;
     void close() override;
diff --git a/src/plugins/sqldrivers/sqlite/qsql_sqlite_p.h b/src/plugins/sqldrivers/sqlite/qsql_sqlite_p.h
index 61be4c937f..c7952bca9a 100644
--- a/src/plugins/sqldrivers/sqlite/qsql_sqlite_p.h
+++ b/src/plugins/sqldrivers/sqlite/qsql_sqlite_p.h
@@ -72,8 +72,8 @@ class Q_EXPORT_SQLDRIVER_SQLITE QSQLiteDriver : public QSqlDriver
     Q_OBJECT
     friend class QSQLiteResultPrivate;
 public:
-    explicit QSQLiteDriver(QObject *parent = 0);
-    explicit QSQLiteDriver(sqlite3 *connection, QObject *parent = 0);
+    explicit QSQLiteDriver(QObject *parent = nullptr);
+    explicit QSQLiteDriver(sqlite3 *connection, QObject *parent = nullptr);
     ~QSQLiteDriver();
     bool hasFeature(DriverFeature f) const override;
     bool open(const QString & db,
diff --git a/src/plugins/sqldrivers/sqlite2/qsql_sqlite2.cpp b/src/plugins/sqldrivers/sqlite2/qsql_sqlite2.cpp
index 390f05c7aa..b7bcd044ab 100644
--- a/src/plugins/sqldrivers/sqlite2/qsql_sqlite2.cpp
+++ b/src/plugins/sqldrivers/sqlite2/qsql_sqlite2.cpp
@@ -43,7 +43,6 @@
 #include <qvariant.h>
 #include <qdatetime.h>
 #include <qfile.h>
-#include <qregexp.h>
 #include <qsqlerror.h>
 #include <qsqlfield.h>
 #include <qsqlindex.h>
diff --git a/src/plugins/sqldrivers/sqlite2/smain.cpp b/src/plugins/sqldrivers/sqlite2/smain.cpp
index 3a5734f8c9..7d971d6e5a 100644
--- a/src/plugins/sqldrivers/sqlite2/smain.cpp
+++ b/src/plugins/sqldrivers/sqlite2/smain.cpp
@@ -43,6 +43,7 @@
 
 QT_BEGIN_NAMESPACE
 
+// ### Qt6: remove, obsolete since 5.14
 class QSQLite2DriverPlugin : public QSqlDriverPlugin
 {
     Q_OBJECT
diff --git a/src/plugins/sqldrivers/tds/main.cpp b/src/plugins/sqldrivers/tds/main.cpp
index 4aa1444608..18efb22ea4 100644
--- a/src/plugins/sqldrivers/tds/main.cpp
+++ b/src/plugins/sqldrivers/tds/main.cpp
@@ -50,6 +50,7 @@
 QT_BEGIN_NAMESPACE
 
 
+// ### Qt6: remove, obsolete since 4.7
 class QTDSDriverPlugin : public QSqlDriverPlugin
 {
     Q_OBJECT
diff --git a/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp b/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
index 90026e5bf0..a331b2ee87 100644
--- a/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
+++ b/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
@@ -1486,11 +1486,13 @@ case PE_Frame:
 
                 // Inner white border
                 p->setPen(QPen(option->palette.base().color(), 0));
-                p->drawRect(QRectF(option->rect).adjusted(QStyleHelper::dpiScaled(0.5), QStyleHelper::dpiScaled(0.5),
-                                                          QStyleHelper::dpiScaled(-1), QStyleHelper::dpiScaled(-1)));
+                const auto topLevelAdjustment = QStyleHelper::dpiScaled(0.5);
+                const auto bottomRightAdjustment = QStyleHelper::dpiScaled(-1);
+                p->drawRect(QRectF(option->rect).adjusted(topLevelAdjustment, topLevelAdjustment,
+                                                          bottomRightAdjustment, bottomRightAdjustment));
                 // Outer dark border
                 p->setPen(QPen(bordercolor, 0));
-                p->drawRect(QRectF(option->rect).adjusted(0, 0, QStyleHelper::dpiScaled(-0.5), QStyleHelper::dpiScaled(-0.5)));
+                p->drawRect(QRectF(option->rect).adjusted(0, 0, -topLevelAdjustment, -topLevelAdjustment));
                 p->setPen(oldPen);
                 return;
             } else if (fillType == BT_NONE) {
@@ -3534,9 +3536,12 @@ QRect QWindowsXPStyle::subControlRect(ComplexControl cc, const QStyleOptionCompl
                              qRound(QStyleHelper::dpiScaled(16)), he - qRound(QStyleHelper::dpiScaled(2)));
                 break;
 
-            case SC_ComboBoxEditField:
-                rect = QRect(x + qRound(QStyleHelper::dpiScaled(2)), y + qRound(QStyleHelper::dpiScaled(2)),
-                             wi - qRound(QStyleHelper::dpiScaled(3 + 16)), he - qRound(QStyleHelper::dpiScaled(4)));
+            case SC_ComboBoxEditField: {
+                const int frame = qRound(QStyleHelper::dpiScaled(2));
+                rect = QRect(x + frame, y + frame,
+                             wi - qRound(QStyleHelper::dpiScaled(3 + 16)),
+                             he - qRound(QStyleHelper::dpiScaled(4)));
+            }
                 break;
 
             case SC_ComboBoxListBoxPopup:
diff --git a/src/plugins/styles/windowsvista/windowsvista.pro b/src/plugins/styles/windowsvista/windowsvista.pro
index f82bcfc91b..c08db7f533 100644
--- a/src/plugins/styles/windowsvista/windowsvista.pro
+++ b/src/plugins/styles/windowsvista/windowsvista.pro
@@ -10,7 +10,7 @@ SOURCES += qwindowsvistastyle.cpp
 HEADERS += qwindowsxpstyle_p.h qwindowsxpstyle_p_p.h
 SOURCES += qwindowsxpstyle.cpp
 
-LIBS_PRIVATE += -lgdi32 -luser32
+QMAKE_USE_PRIVATE += user32 gdi32
 
 # DEFINES/LIBS needed for qwizard_win.cpp and the styles
 include(../../../widgets/kernel/win.pri)
diff --git a/src/printsupport/dialogs/qpagesetupdialog_unix.cpp b/src/printsupport/dialogs/qpagesetupdialog_unix.cpp
index d9b4a84aa9..1d8af9dbf0 100644
--- a/src/printsupport/dialogs/qpagesetupdialog_unix.cpp
+++ b/src/printsupport/dialogs/qpagesetupdialog_unix.cpp
@@ -361,13 +361,21 @@ void QPageSetupWidget::initPageSizes()
         QPlatformPrinterSupport *ps = QPlatformPrinterSupportPlugin::get();
         if (ps) {
             QPrintDevice printDevice = ps->createPrintDevice(m_printerName);
+            const QPageSize defaultSize = printDevice.defaultPageSize();
             const auto pageSizes = printDevice.supportedPageSizes();
             for (const QPageSize &pageSize : pageSizes)
                 m_ui.pageSizeCombo->addItem(pageSize.name(), QVariant::fromValue(pageSize));
-            if (m_ui.pageSizeCombo->count() > 0 && printDevice.supportsCustomPageSizes()) {
-                m_ui.pageSizeCombo->addItem(tr("Custom"));
-                m_realCustomPageSizeIndex = m_ui.pageSizeCombo->count() - 1;
+            if (m_ui.pageSizeCombo->count() > 0) {
+                if (printDevice.supportsCustomPageSizes()) {
+                    m_ui.pageSizeCombo->addItem(tr("Custom"));
+                    m_realCustomPageSizeIndex = m_ui.pageSizeCombo->count() - 1;
+                }
                 m_blockSignals = false;
+
+                // If the defaultSize is index 0, setCurrentIndex won't emit the currentIndexChanged
+                // signal; workaround the issue by initially setting the currentIndex to -1
+                m_ui.pageSizeCombo->setCurrentIndex(-1);
+                m_ui.pageSizeCombo->setCurrentIndex(m_ui.pageSizeCombo->findData(QVariant::fromValue(defaultSize)));
                 return;
             }
         }
@@ -403,12 +411,6 @@ void QPageSetupWidget::setPrinter(QPrinter *printer, QPrintDevice *printDevice,
     // Initialize the layout to the current QPrinter layout
     m_pageLayout = m_printer->pageLayout();
 
-    if (printDevice) {
-        const QPageSize pageSize = printDevice->defaultPageSize();
-        const QMarginsF printable = printDevice->printableMargins(pageSize, m_pageLayout.orientation(), m_printer->resolution());
-        m_pageLayout.setPageSize(pageSize, qt_convertMargins(printable, QPageLayout::Point, m_pageLayout.units()));
-    }
-
     // Assume if margins are Points then is by default, so set to locale default units
     if (m_pageLayout.units() == QPageLayout::Point) {
         if (QLocale().measurementSystem() == QLocale::MetricSystem)
@@ -735,8 +737,12 @@ int QPageSetupDialog::exec()
     Q_D(QPageSetupDialog);
 
     int ret = QDialog::exec();
-    if (ret == Accepted)
+    if (ret == Accepted) {
         static_cast <QUnixPageSetupDialogPrivate*>(d)->widget->setupPrinter();
+        static_cast <QUnixPageSetupDialogPrivate*>(d)->widget->updateSavedValues();
+    } else {
+        static_cast <QUnixPageSetupDialogPrivate*>(d)->widget->revertToSavedValues();
+    }
     return ret;
 }
 
diff --git a/src/printsupport/dialogs/qprintdialog_unix.cpp b/src/printsupport/dialogs/qprintdialog_unix.cpp
index 9fb9d6c55e..6eaf24adf9 100644
--- a/src/printsupport/dialogs/qprintdialog_unix.cpp
+++ b/src/printsupport/dialogs/qprintdialog_unix.cpp
@@ -398,12 +398,12 @@ static const char *ppdOriginallySelectedChoiceProperty = "_q_ppd_originally_sele
 // Used to store the warning label pointer for each QComboBox that represents an advanced option
 static const char *warningLabelProperty = "_q_warning_label";
 
-static bool isBlacklistedGroup(const ppd_group_t *group) Q_DECL_NOTHROW
+static bool isBlacklistedGroup(const ppd_group_t *group) noexcept
 {
     return qstrcmp(group->name, "InstallableOptions") == 0;
 };
 
-static bool isBlacklistedOption(const char *keyword) Q_DECL_NOTHROW
+static bool isBlacklistedOption(const char *keyword) noexcept
 {
     // We already let the user set these options elsewhere
     const char *cupsOptionBlacklist[] = {
@@ -734,7 +734,7 @@ void QPrintDialogPrivate::selectPrinter(const QPrinter::OutputFormat outputForma
 }
 
 #if QT_CONFIG(cups)
-static std::vector<std::pair<int, int>> pageRangesFromString(const QString &pagesString) Q_DECL_NOTHROW
+static std::vector<std::pair<int, int>> pageRangesFromString(const QString &pagesString) noexcept
 {
     std::vector<std::pair<int, int>> result;
     const QStringList items = pagesString.split(',');
@@ -788,7 +788,7 @@ static std::vector<std::pair<int, int>> pageRangesFromString(const QString &page
     return result;
 }
 
-static QString stringFromPageRanges(const std::vector<std::pair<int, int>> &pageRanges) Q_DECL_NOTHROW
+static QString stringFromPageRanges(const std::vector<std::pair<int, int>> &pageRanges) noexcept
 {
     QString result;
 
@@ -805,7 +805,7 @@ static QString stringFromPageRanges(const std::vector<std::pair<int, int>> &page
     return result;
 }
 
-static bool isValidPagesString(const QString &pagesString) Q_DECL_NOTHROW
+static bool isValidPagesString(const QString &pagesString) noexcept
 {
     if (pagesString.isEmpty())
         return false;
diff --git a/src/printsupport/dialogs/qprintpreviewdialog.cpp b/src/printsupport/dialogs/qprintpreviewdialog.cpp
index e6b665f82c..39575d5f57 100644
--- a/src/printsupport/dialogs/qprintpreviewdialog.cpp
+++ b/src/printsupport/dialogs/qprintpreviewdialog.cpp
@@ -152,8 +152,8 @@ class QPrintPreviewDialogPrivate : public QDialogPrivate
     Q_DECLARE_PUBLIC(QPrintPreviewDialog)
 public:
     QPrintPreviewDialogPrivate()
-        : printDialog(nullptr), ownPrinter(false),
-          initialized(false) {}
+        : printDialog(nullptr), pageSetupDialog(nullptr),
+          ownPrinter(false), initialized(false)  {}
 
     // private slots
     void _q_fit(QAction *action);
@@ -178,6 +178,7 @@ public:
     void updateZoomFactor();
 
     QPrintDialog *printDialog;
+    QPageSetupDialog *pageSetupDialog;
     QPrintPreviewWidget *preview;
     QPrinter *printer;
     bool ownPrinter;
@@ -494,7 +495,7 @@ void QPrintPreviewDialogPrivate::updatePageNumLabel()
 
 void QPrintPreviewDialogPrivate::updateZoomFactor()
 {
-    zoomFactor->lineEdit()->setText(QString().sprintf("%.1f%%", preview->zoomFactor()*100));
+    zoomFactor->lineEdit()->setText(QString::asprintf("%.1f%%", preview->zoomFactor()*100));
 }
 
 void QPrintPreviewDialogPrivate::_q_fit(QAction* action)
@@ -602,8 +603,10 @@ void QPrintPreviewDialogPrivate::_q_pageSetup()
 {
     Q_Q(QPrintPreviewDialog);
 
-    QPageSetupDialog pageSetup(printer, q);
-    if (pageSetup.exec() == QDialog::Accepted) {
+    if (!pageSetupDialog)
+        pageSetupDialog = new QPageSetupDialog(printer, q);
+
+    if (pageSetupDialog->exec() == QDialog::Accepted) {
         // update possible orientation changes
         if (preview->orientation() == QPrinter::Portrait) {
             portraitAction->setChecked(true);
@@ -713,6 +716,7 @@ QPrintPreviewDialog::~QPrintPreviewDialog()
     if (d->ownPrinter)
         delete d->printer;
     delete d->printDialog;
+    delete d->pageSetupDialog;
 }
 
 /*!
diff --git a/src/printsupport/kernel/kernel.pri b/src/printsupport/kernel/kernel.pri
index ea7b4b9780..2ceaf152eb 100644
--- a/src/printsupport/kernel/kernel.pri
+++ b/src/printsupport/kernel/kernel.pri
@@ -33,7 +33,10 @@ win32 {
                 $$PWD/qprintengine_win_p.h
         SOURCES += \
                 $$PWD/qprintengine_win.cpp
-        !winrt: LIBS_PRIVATE += -lwinspool -lcomdlg32 -lgdi32 -luser32
+        !winrt {
+            LIBS_PRIVATE += -lwinspool -lcomdlg32
+            QMAKE_USE_PRIVATE += user32 gdi32
+        }
 }
 
 unix:!darwin:qtConfig(cups) {
diff --git a/src/printsupport/kernel/qcups.cpp b/src/printsupport/kernel/qcups.cpp
index 8505e8356c..5236b8c8fa 100644
--- a/src/printsupport/kernel/qcups.cpp
+++ b/src/printsupport/kernel/qcups.cpp
@@ -44,12 +44,12 @@
 
 QT_BEGIN_NAMESPACE
 
-static QStringList cupsOptionsList(QPrinter *printer) Q_DECL_NOTHROW
+static QStringList cupsOptionsList(QPrinter *printer) noexcept
 {
     return printer->printEngine()->property(PPK_CupsOptions).toStringList();
 }
 
-void setCupsOptions(QPrinter *printer, const QStringList &cupsOptions) Q_DECL_NOTHROW
+void setCupsOptions(QPrinter *printer, const QStringList &cupsOptions) noexcept
 {
     printer->printEngine()->setProperty(PPK_CupsOptions, QVariant(cupsOptions));
 }
diff --git a/src/printsupport/kernel/qprintdevice_p.h b/src/printsupport/kernel/qprintdevice_p.h
index a2b18f08cf..9e76c37617 100644
--- a/src/printsupport/kernel/qprintdevice_p.h
+++ b/src/printsupport/kernel/qprintdevice_p.h
@@ -76,9 +76,7 @@ public:
     ~QPrintDevice();
 
     QPrintDevice &operator=(const QPrintDevice &other);
- #ifdef Q_COMPILER_RVALUE_REFS
     QPrintDevice &operator=(QPrintDevice &&other) { swap(other); return *this; }
-#endif
 
     void swap(QPrintDevice &other) { d.swap(other.d); }
 
diff --git a/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp b/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
index a27feb1505..bba0487452 100644
--- a/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
+++ b/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
@@ -213,7 +213,7 @@ void QSqlQuery_snippets()
     while (i.hasNext()) {
         i.next();
         cout << i.key().toUtf8().data() << ": "
-             << i.value().toString().toUtf8().data() << endl;
+             << i.value().toString().toUtf8().data() << Qt::endl;
     }
 //! [14]
     }
@@ -223,7 +223,7 @@ void QSqlQuery_snippets()
 //! [15]
     QList<QVariant> list = query.boundValues().values();
     for (int i = 0; i < list.size(); ++i)
-        cout << i << ": " << list.at(i).toString().toUtf8().data() << endl;
+        cout << i << ": " << list.at(i).toString().toUtf8().data() << Qt::endl;
 //! [15]
     }
 }
diff --git a/src/sql/doc/src/sql-driver.qdoc b/src/sql/doc/src/sql-driver.qdoc
index cccce48bb3..c6ac4d17ff 100644
--- a/src/sql/doc/src/sql-driver.qdoc
+++ b/src/sql/doc/src/sql-driver.qdoc
@@ -54,9 +54,9 @@
          \li Open Database Connectivity (ODBC) - Microsoft SQL Server and other
             ODBC-compliant databases
     \row \li \l{#QPSQL}{QPSQL} \li PostgreSQL (versions 7.3 and above)
-    \row \li \l{#QSQLITE2}{QSQLITE2} \li SQLite version 2
+    \row \li \l{#QSQLITE2}{QSQLITE2} \li SQLite version 2 \note obsolete since Qt 5.14
     \row \li \l{#QSQLITE}{QSQLITE} \li SQLite version 3
-    \row \li \l{#QTDS}{QTDS} \li Sybase Adaptive Server \note obsolete from Qt 4.7
+    \row \li \l{#QTDS}{QTDS} \li Sybase Adaptive Server \note obsolete since Qt 4.7
     \endtable
 
     SQLite is the in-process database system with the best test coverage
diff --git a/src/sql/kernel/qsqlerror.cpp b/src/sql/kernel/qsqlerror.cpp
index 41ea497ad7..7a1a91948c 100644
--- a/src/sql/kernel/qsqlerror.cpp
+++ b/src/sql/kernel/qsqlerror.cpp
@@ -365,7 +365,7 @@ QString QSqlError::nativeErrorCode() const
 QString QSqlError::text() const
 {
     QString result = d->databaseError;
-    if (!d->databaseError.endsWith(QLatin1String("\n")))
+    if (!d->databaseError.isEmpty() && !d->driverError.isEmpty() && !d->databaseError.endsWith(QLatin1String("\n")))
         result += QLatin1Char(' ');
     result += d->driverError;
     return result;
diff --git a/src/sql/kernel/qsqlerror.h b/src/sql/kernel/qsqlerror.h
index 6dac47a7fe..7dfb6eb9ec 100644
--- a/src/sql/kernel/qsqlerror.h
+++ b/src/sql/kernel/qsqlerror.h
@@ -66,15 +66,15 @@ public:
               ErrorType type = NoError,
               const QString &errorCode = QString());
     QSqlError(const QSqlError& other);
-    QSqlError(QSqlError &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
+    QSqlError(QSqlError &&other) noexcept : d(other.d) { other.d = nullptr; }
     QSqlError& operator=(const QSqlError& other);
-    QSqlError &operator=(QSqlError &&other) Q_DECL_NOTHROW { swap(other); return *this; }
+    QSqlError &operator=(QSqlError &&other) noexcept { swap(other); return *this; }
 
     bool operator==(const QSqlError& other) const;
     bool operator!=(const QSqlError& other) const;
     ~QSqlError();
 
-    void swap(QSqlError &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
+    void swap(QSqlError &other) noexcept { qSwap(d, other.d); }
 
     QString driverText() const;
     QString databaseText() const;
diff --git a/src/sql/kernel/qsqlrecord.cpp b/src/sql/kernel/qsqlrecord.cpp
index ecbe3eacdb..c4dc5d1adb 100644
--- a/src/sql/kernel/qsqlrecord.cpp
+++ b/src/sql/kernel/qsqlrecord.cpp
@@ -535,7 +535,7 @@ QDebug operator<<(QDebug dbg, const QSqlRecord &r)
     dbg << "QSqlRecord(" << count << ')';
     for (int i = 0; i < count; ++i) {
         dbg.nospace();
-        dbg << '\n' << qSetFieldWidth(2) << right << i << left << qSetFieldWidth(0) << ':';
+        dbg << '\n' << qSetFieldWidth(2) << Qt::right << i << Qt::left << qSetFieldWidth(0) << ':';
         dbg.space();
         dbg << r.field(i) << r.value(i).toString();
     }
diff --git a/src/sql/kernel/qsqlresult.cpp b/src/sql/kernel/qsqlresult.cpp
index 589088238b..cc91c6d0ed 100644
--- a/src/sql/kernel/qsqlresult.cpp
+++ b/src/sql/kernel/qsqlresult.cpp
@@ -41,7 +41,6 @@
 
 #include "qvariant.h"
 #include "qhash.h"
-#include "qregexp.h"
 #include "qsqlerror.h"
 #include "qsqlfield.h"
 #include "qsqlrecord.h"
diff --git a/src/sql/models/qsqlquerymodel_p.h b/src/sql/models/qsqlquerymodel_p.h
index d5ca2f89cb..64e9aeb3db 100644
--- a/src/sql/models/qsqlquerymodel_p.h
+++ b/src/sql/models/qsqlquerymodel_p.h
@@ -75,7 +75,7 @@ public:
     void initColOffsets(int size);
     int columnInQuery(int modelColumn) const;
 
-    mutable QSqlQuery query = { QSqlQuery(0) };
+    mutable QSqlQuery query = { QSqlQuery(nullptr) };
     mutable QSqlError error;
     QModelIndex bottom;
     QSqlRecord rec;
diff --git a/src/sql/models/qsqlrelationaltablemodel.h b/src/sql/models/qsqlrelationaltablemodel.h
index 555755009c..1929bd320a 100644
--- a/src/sql/models/qsqlrelationaltablemodel.h
+++ b/src/sql/models/qsqlrelationaltablemodel.h
@@ -58,7 +58,7 @@ public:
                const QString &displayCol)
         : tName(aTableName), iColumn(indexCol), dColumn(displayCol) {}
 
-    void swap(QSqlRelation &other) Q_DECL_NOTHROW
+    void swap(QSqlRelation &other) noexcept
     {
         qSwap(tName, other.tName);
         qSwap(iColumn, other.iColumn);
@@ -71,7 +71,7 @@ public:
     { return iColumn; }
     inline QString displayColumn() const
     { return dColumn; }
-    bool isValid() const Q_DECL_NOTHROW
+    bool isValid() const noexcept
     { return !(tName.isEmpty() || iColumn.isEmpty() || dColumn.isEmpty()); }
 private:
     QString tName, iColumn, dColumn;
diff --git a/src/sql/models/qsqltablemodel.cpp b/src/sql/models/qsqltablemodel.cpp
index 98d6ddf882..11d30ab2e8 100644
--- a/src/sql/models/qsqltablemodel.cpp
+++ b/src/sql/models/qsqltablemodel.cpp
@@ -50,6 +50,7 @@
 #include "qsqltablemodel_p.h"
 
 #include <qdebug.h>
+#include <qstringlistmodel.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -611,7 +612,7 @@ bool QSqlTableModel::setData(const QModelIndex &index, const QVariant &value, in
 /*!
     \reimp
  */
-bool QStringListModel::clearItemData(const QModelIndex &index)
+bool QSqlTableModel::clearItemData(const QModelIndex &index)
 {
     return setData(index, QVariant(), Qt::EditRole);
 }
diff --git a/src/sql/models/qsqltablemodel_p.h b/src/sql/models/qsqltablemodel_p.h
index bb568ab444..9ac34e7259 100644
--- a/src/sql/models/qsqltablemodel_p.h
+++ b/src/sql/models/qsqltablemodel_p.h
@@ -93,7 +93,7 @@ public:
     QSqlTableModel::EditStrategy strategy;
     bool busyInsertingRows;
 
-    QSqlQuery editQuery = { QSqlQuery(0) };
+    QSqlQuery editQuery = { QSqlQuery(nullptr) };
     QSqlIndex primaryIndex;
     QString tableName;
     QString filter;
diff --git a/src/testlib/qabstracttestlogger_p.h b/src/testlib/qabstracttestlogger_p.h
index a64e7ea96f..9bb1d1e80c 100644
--- a/src/testlib/qabstracttestlogger_p.h
+++ b/src/testlib/qabstracttestlogger_p.h
@@ -97,14 +97,14 @@ public:
     virtual void enterTestData(QTestData *) {}
 
     virtual void addIncident(IncidentTypes type, const char *description,
-                             const char *file = 0, int line = 0) = 0;
+                             const char *file = nullptr, int line = 0) = 0;
     virtual void addBenchmarkResult(const QBenchmarkResult &result) = 0;
 
     virtual void addMessage(QtMsgType, const QMessageLogContext &,
                             const QString &);
 
     virtual void addMessage(MessageTypes type, const QString &message,
-                            const char *file = 0, int line = 0) = 0;
+                            const char *file = nullptr, int line = 0) = 0;
 
     void outputString(const char *msg);
 
@@ -151,7 +151,7 @@ struct QTestCharBuffer
 
     inline bool reset(int newSize)
     {
-        char *newBuf = 0;
+        char *newBuf = nullptr;
         if (buf == staticBuf) {
             // if we point to our internal buffer, we need to malloc first
             newBuf = reinterpret_cast<char *>(malloc(newSize));
diff --git a/src/testlib/qbenchmarkevent.cpp b/src/testlib/qbenchmarkevent.cpp
index f696f8b1eb..a8270219e4 100644
--- a/src/testlib/qbenchmarkevent.cpp
+++ b/src/testlib/qbenchmarkevent.cpp
@@ -96,7 +96,11 @@ QTest::QBenchmarkMetric QBenchmarkEvent::metricType()
 }
 
 // This could be done in a much better way, this is just the beginning.
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QBenchmarkEvent::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QBenchmarkEvent::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
+#endif
 {
     Q_UNUSED(eventType);
     Q_UNUSED(message);
diff --git a/src/testlib/qbenchmarkevent_p.h b/src/testlib/qbenchmarkevent_p.h
index af42a17141..0f47aa475c 100644
--- a/src/testlib/qbenchmarkevent_p.h
+++ b/src/testlib/qbenchmarkevent_p.h
@@ -71,7 +71,11 @@ public:
     int adjustMedianCount(int suggestion) override;
     bool repeatCount() override { return 1; }
     QTest::QBenchmarkMetric metricType() override;
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result) override;
+#else
     bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) override;
+#endif
     qint64 eventCounter;
 };
 
diff --git a/src/testlib/qcsvbenchmarklogger_p.h b/src/testlib/qcsvbenchmarklogger_p.h
index 5840aee0f5..83e465c859 100644
--- a/src/testlib/qcsvbenchmarklogger_p.h
+++ b/src/testlib/qcsvbenchmarklogger_p.h
@@ -68,11 +68,11 @@ public:
     void leaveTestFunction() override;
 
     void addIncident(IncidentTypes type, const char *description,
-                     const char *file = 0, int line = 0) override;
+                     const char *file = nullptr, int line = 0) override;
     void addBenchmarkResult(const QBenchmarkResult &result) override;
 
     void addMessage(MessageTypes type, const QString &message,
-                            const char *file = 0, int line = 0) override;
+                            const char *file = nullptr, int line = 0) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/testlib/qplaintestlogger_p.h b/src/testlib/qplaintestlogger_p.h
index 55755830b2..80ef4864c1 100644
--- a/src/testlib/qplaintestlogger_p.h
+++ b/src/testlib/qplaintestlogger_p.h
@@ -68,17 +68,17 @@ public:
     void leaveTestFunction() override;
 
     void addIncident(IncidentTypes type, const char *description,
-                     const char *file = 0, int line = 0) override;
+                     const char *file = nullptr, int line = 0) override;
     void addBenchmarkResult(const QBenchmarkResult &result) override;
 
     void addMessage(QtMsgType, const QMessageLogContext &,
                     const QString &) override;
 
     void addMessage(MessageTypes type, const QString &message,
-                    const char *file = 0, int line = 0) override;
+                    const char *file = nullptr, int line = 0) override;
 
 private:
-    void printMessage(const char *type, const char *msg, const char *file = 0, int line = 0);
+    void printMessage(const char *type, const char *msg, const char *file = nullptr, int line = 0);
     void outputMessage(const char *str);
     void printBenchmarkResult(const QBenchmarkResult &result);
 };
diff --git a/src/testlib/qsignaldumper.cpp b/src/testlib/qsignaldumper.cpp
index 8305c5d424..d0b6d0dd3f 100644
--- a/src/testlib/qsignaldumper.cpp
+++ b/src/testlib/qsignaldumper.cpp
@@ -87,7 +87,7 @@ static void qSignalDumperCallback(QObject *caller, int signal_index, void **argv
     str += objname.toLocal8Bit();
     if (!objname.isEmpty())
         str += ' ';
-    str += QByteArray::number(quintptr(caller), 16);
+    str += QByteArray::number(quintptr(caller), 16).rightJustified(8, '0');
 
     str += ") ";
     str += member.name();
@@ -105,7 +105,7 @@ static void qSignalDumperCallback(QObject *caller, int signal_index, void **argv
                 str += '@';
 
             quintptr addr = quintptr(*reinterpret_cast<void **>(argv[i + 1]));
-            str.append(QByteArray::number(addr, 16));
+            str.append(QByteArray::number(addr, 16).rightJustified(8, '0'));
         } else if (typeId != QMetaType::UnknownType) {
             Q_ASSERT(typeId != QMetaType::Void); // void parameter => metaobject is corrupt
             str.append(arg)
@@ -144,7 +144,7 @@ static void qSignalDumperCallbackSlot(QObject *caller, int method_index, void **
     str += objname.toLocal8Bit();
     if (!objname.isEmpty())
         str += ' ';
-    str += QByteArray::number(quintptr(caller), 16);
+    str += QByteArray::number(quintptr(caller), 16).rightJustified(8, '0');
 
     str += ") ";
     str += member.methodSignature();
@@ -170,13 +170,12 @@ void QSignalDumper::startDump()
 {
     static QSignalSpyCallbackSet set = { QTest::qSignalDumperCallback,
         QTest::qSignalDumperCallbackSlot, QTest::qSignalDumperCallbackEndSignal, 0 };
-    qt_register_signal_spy_callbacks(set);
+    qt_register_signal_spy_callbacks(&set);
 }
 
 void QSignalDumper::endDump()
 {
-    static QSignalSpyCallbackSet nset = { 0, 0, 0 ,0 };
-    qt_register_signal_spy_callbacks(nset);
+    qt_register_signal_spy_callbacks(nullptr);
 }
 
 void QSignalDumper::ignoreClass(const QByteArray &klass)
diff --git a/src/testlib/qsignalspy.h b/src/testlib/qsignalspy.h
index 218a26ec5c..0285080662 100644
--- a/src/testlib/qsignalspy.h
+++ b/src/testlib/qsignalspy.h
@@ -122,7 +122,7 @@ public:
         }
 
         if (!QMetaObject::connect(obj, sigIndex, this, memberOffset,
-                    Qt::DirectConnection, 0)) {
+                    Qt::DirectConnection, nullptr)) {
             qWarning("QSignalSpy: QMetaObject::connect returned false. Unable to connect.");
             return;
         }
diff --git a/src/testlib/qtaptestlogger_p.h b/src/testlib/qtaptestlogger_p.h
index b51343e4fe..967c724b51 100644
--- a/src/testlib/qtaptestlogger_p.h
+++ b/src/testlib/qtaptestlogger_p.h
@@ -70,9 +70,9 @@ public:
     void enterTestData(QTestData *data) override;
 
     void addIncident(IncidentTypes type, const char *description,
-                 const char *file = 0, int line = 0) override;
+                 const char *file = nullptr, int line = 0) override;
     void addMessage(MessageTypes type, const QString &message,
-                const char *file = 0, int line = 0) override;
+                const char *file = nullptr, int line = 0) override;
 
     void addBenchmarkResult(const QBenchmarkResult &) override {};
 private:
diff --git a/src/testlib/qteamcitylogger.cpp b/src/testlib/qteamcitylogger.cpp
index 577c8e70cd..88c83d1269 100644
--- a/src/testlib/qteamcitylogger.cpp
+++ b/src/testlib/qteamcitylogger.cpp
@@ -251,7 +251,7 @@ QString QTeamCityLogger::tcEscapedString(const QString &str) const
         }
     }
 
-    return qMove(formattedString).simplified();
+    return std::move(formattedString).simplified();
 }
 
 QString QTeamCityLogger::escapedTestFuncName() const
diff --git a/src/testlib/qteamcitylogger_p.h b/src/testlib/qteamcitylogger_p.h
index 80f2454724..dd7c0cdcf0 100644
--- a/src/testlib/qteamcitylogger_p.h
+++ b/src/testlib/qteamcitylogger_p.h
@@ -70,11 +70,11 @@ public:
     void leaveTestFunction() override;
 
     void addIncident(IncidentTypes type, const char *description,
-                     const char *file = 0, int line = 0) override;
+                     const char *file = nullptr, int line = 0) override;
     void addBenchmarkResult(const QBenchmarkResult &result) override;
 
     void addMessage(MessageTypes type, const QString &message,
-                    const char *file = 0, int line = 0) override;
+                    const char *file = nullptr, int line = 0) override;
 
 private:
     QString currTestFuncName;
diff --git a/src/testlib/qtest.h b/src/testlib/qtest.h
index ebd94939ce..89abc616d9 100644
--- a/src/testlib/qtest.h
+++ b/src/testlib/qtest.h
@@ -424,48 +424,45 @@ int main(int argc, char *argv[]) \
 #  define QTEST_DISABLE_KEYPAD_NAVIGATION
 #endif
 
-#define QTEST_MAIN(TestObject) \
-int main(int argc, char *argv[]) \
-{ \
+#define QTEST_MAIN_IMPL(TestObject) \
     TESTLIB_SELFCOVERAGE_START(#TestObject) \
     QApplication app(argc, argv); \
     app.setAttribute(Qt::AA_Use96Dpi, true); \
     QTEST_DISABLE_KEYPAD_NAVIGATION \
     TestObject tc; \
     QTEST_SET_MAIN_SOURCE_PATH \
-    return QTest::qExec(&tc, argc, argv); \
-}
+    return QTest::qExec(&tc, argc, argv);
 
 #elif defined(QT_GUI_LIB)
 
 #include <QtTest/qtest_gui.h>
 
-#define QTEST_MAIN(TestObject) \
-int main(int argc, char *argv[]) \
-{ \
+#define QTEST_MAIN_IMPL(TestObject) \
     TESTLIB_SELFCOVERAGE_START(#TestObject) \
     QGuiApplication app(argc, argv); \
     app.setAttribute(Qt::AA_Use96Dpi, true); \
     TestObject tc; \
     QTEST_SET_MAIN_SOURCE_PATH \
-    return QTest::qExec(&tc, argc, argv); \
-}
+    return QTest::qExec(&tc, argc, argv);
 
 #else
 
-#define QTEST_MAIN(TestObject) \
-int main(int argc, char *argv[]) \
-{ \
+#define QTEST_MAIN_IMPL(TestObject) \
     TESTLIB_SELFCOVERAGE_START(#TestObject) \
     QCoreApplication app(argc, argv); \
     app.setAttribute(Qt::AA_Use96Dpi, true); \
     TestObject tc; \
     QTEST_SET_MAIN_SOURCE_PATH \
-    return QTest::qExec(&tc, argc, argv); \
-}
+    return QTest::qExec(&tc, argc, argv);
 
 #endif // QT_GUI_LIB
 
+#define QTEST_MAIN(TestObject) \
+int main(int argc, char *argv[]) \
+{ \
+    QTEST_MAIN_IMPL(TestObject) \
+}
+
 #define QTEST_GUILESS_MAIN(TestObject) \
 int main(int argc, char *argv[]) \
 { \
diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
index 1f69429053..cad29b5326 100644
--- a/src/testlib/qtestcase.cpp
+++ b/src/testlib/qtestcase.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -1095,7 +1095,7 @@ bool TestMethods::invokeTest(int index, const char *data, WatchDog *watchDog) co
     const int globalDataCount = gTable->dataCount();
     int curGlobalDataIndex = 0;
 
-    /* For each test function that has a *_data() table/function, do: */
+    /* For each entry in the global data table, do: */
     do {
         if (!gTable->isEmpty())
             QTestResult::setCurrentGlobalTestData(gTable->testData(curGlobalDataIndex));
@@ -1103,50 +1103,50 @@ bool TestMethods::invokeTest(int index, const char *data, WatchDog *watchDog) co
         if (curGlobalDataIndex == 0) {
             qsnprintf(member, 512, "%s_data()", name.constData());
             invokeMethod(QTest::currentTestObject, member);
+            if (QTestResult::skipCurrentTest())
+                break;
         }
 
         bool foundFunction = false;
-        if (!QTestResult::skipCurrentTest()) {
-            int curDataIndex = 0;
-            const int dataCount = table.dataCount();
-
-            // Data tag requested but none available?
-            if (data && !dataCount) {
-                // Let empty data tag through.
-                if (!*data)
-                    data = 0;
-                else {
-                    fprintf(stderr, "Unknown testdata for function %s(): '%s'\n", name.constData(), data);
-                    fprintf(stderr, "Function has no testdata.\n");
-                    return false;
-                }
+        int curDataIndex = 0;
+        const int dataCount = table.dataCount();
+
+        // Data tag requested but none available?
+        if (data && !dataCount) {
+            // Let empty data tag through.
+            if (!*data)
+                data = 0;
+            else {
+                fprintf(stderr, "Unknown testdata for function %s(): '%s'\n", name.constData(), data);
+                fprintf(stderr, "Function has no testdata.\n");
+                return false;
             }
+        }
 
-            /* For each entry in the data table, do: */
-            do {
-                QTestResult::setSkipCurrentTest(false);
-                QTestResult::setBlacklistCurrentTest(false);
-                if (!data || !qstrcmp(data, table.testData(curDataIndex)->dataTag())) {
-                    foundFunction = true;
+        /* For each entry in this test's data table, do: */
+        do {
+            QTestResult::setSkipCurrentTest(false);
+            QTestResult::setBlacklistCurrentTest(false);
+            if (!data || !qstrcmp(data, table.testData(curDataIndex)->dataTag())) {
+                foundFunction = true;
 
-                    QTestPrivate::checkBlackLists(name.constData(), dataCount ? table.testData(curDataIndex)->dataTag() : 0);
+                QTestPrivate::checkBlackLists(name.constData(), dataCount ? table.testData(curDataIndex)->dataTag() : 0);
 
-                    QTestDataSetter s(curDataIndex >= dataCount ? static_cast<QTestData *>(0)
-                                                      : table.testData(curDataIndex));
+                QTestDataSetter s(curDataIndex >= dataCount ? static_cast<QTestData *>(0)
+                                  : table.testData(curDataIndex));
 
-                    QTestPrivate::qtestMouseButtons = Qt::NoButton;
-                    if (watchDog)
-                        watchDog->beginTest();
-                    invokeTestOnData(index);
-                    if (watchDog)
-                        watchDog->testFinished();
+                QTestPrivate::qtestMouseButtons = Qt::NoButton;
+                if (watchDog)
+                    watchDog->beginTest();
+                invokeTestOnData(index);
+                if (watchDog)
+                    watchDog->testFinished();
 
-                    if (data)
-                        break;
-                }
-                ++curDataIndex;
-            } while (curDataIndex < dataCount);
-        }
+                if (data)
+                    break;
+            }
+            ++curDataIndex;
+        } while (curDataIndex < dataCount);
 
         if (data && !foundFunction) {
             fprintf(stderr, "Unknown testdata for function %s: '%s()'\n", name.constData(), data);
@@ -2148,7 +2148,7 @@ QSharedPointer<QTemporaryDir> QTest::qExtractTestData(const QString &dirName)
           }
       }
 
-      result = qMove(tempDir);
+      result = std::move(tempDir);
 
       return result;
 }
@@ -2519,13 +2519,28 @@ bool QTest::compare_helper(bool success, const char *failureMsg,
     return QTestResult::compare(success, failureMsg, val1, val2, actual, expected, file, line);
 }
 
+template <typename T>
+static bool floatingCompare(const T &t1, const T &t2)
+{
+    switch (qFpClassify(t1))
+    {
+    case FP_INFINITE:
+        return (t1 < 0) == (t2 < 0) && qFpClassify(t2) == FP_INFINITE;
+    case FP_NAN:
+        return qFpClassify(t2) == FP_NAN;
+    default:
+        return qFuzzyCompare(t1, t2);
+    }
+}
+
 /*! \fn bool QTest::qCompare(const qfloat16 &t1, const qfloat16 &t2, const char *actual, const char *expected, const char *file, int line)
     \internal
  */
 bool QTest::qCompare(qfloat16 const &t1, qfloat16 const &t2, const char *actual, const char *expected,
                      const char *file, int line)
 {
-    return compare_helper(qFuzzyCompare(t1, t2), "Compared qfloat16s are not the same (fuzzy compare)",
+    return compare_helper(floatingCompare(t1, t2),
+                          "Compared qfloat16s are not the same (fuzzy compare)",
                           toString(t1), toString(t2), actual, expected, file, line);
 }
 
@@ -2535,16 +2550,8 @@ bool QTest::qCompare(qfloat16 const &t1, qfloat16 const &t2, const char *actual,
 bool QTest::qCompare(float const &t1, float const &t2, const char *actual, const char *expected,
                     const char *file, int line)
 {
-    bool equal = false;
-    int cl1 = std::fpclassify(t1);
-    int cl2 = std::fpclassify(t2);
-    if (cl1 == FP_INFINITE)
-        equal = ((t1 < 0) == (t2 < 0)) && cl2 == FP_INFINITE;
-    else if (cl1 == FP_NAN)
-        equal = (cl2 == FP_NAN);
-    else
-        equal = qFuzzyCompare(t1, t2);
-    return compare_helper(equal, "Compared floats are not the same (fuzzy compare)",
+    return compare_helper(floatingCompare(t1, t2),
+                          "Compared floats are not the same (fuzzy compare)",
                           toString(t1), toString(t2), actual, expected, file, line);
 }
 
@@ -2554,16 +2561,8 @@ bool QTest::qCompare(float const &t1, float const &t2, const char *actual, const
 bool QTest::qCompare(double const &t1, double const &t2, const char *actual, const char *expected,
                     const char *file, int line)
 {
-    bool equal = false;
-    int cl1 = std::fpclassify(t1);
-    int cl2 = std::fpclassify(t2);
-    if (cl1 == FP_INFINITE)
-        equal = ((t1 < 0) == (t2 < 0)) && cl2 == FP_INFINITE;
-    else if (cl1 == FP_NAN)
-        equal = (cl2 == FP_NAN);
-    else
-        equal = qFuzzyCompare(t1, t2);
-    return compare_helper(equal, "Compared doubles are not the same (fuzzy compare)",
+    return compare_helper(floatingCompare(t1, t2),
+                          "Compared doubles are not the same (fuzzy compare)",
                           toString(t1), toString(t2), actual, expected, file, line);
 }
 
@@ -2633,7 +2632,7 @@ static void massageExponent(char *text)
 template <> Q_TESTLIB_EXPORT char *QTest::toString<TYPE>(const TYPE &t) \
 { \
     char *msg = new char[128]; \
-    switch (std::fpclassify(t)) { \
+    switch (qFpClassify(t)) { \
     case FP_INFINITE: \
         qstrncpy(msg, (t < 0 ? "-inf" : "inf"), 128); \
         break; \
@@ -2641,22 +2640,16 @@ template <> Q_TESTLIB_EXPORT char *QTest::toString<TYPE>(const TYPE &t) \
         qstrncpy(msg, "nan", 128); \
         break; \
     default: \
-        qsnprintf(msg, 128, #FORMAT, t); \
+        qsnprintf(msg, 128, #FORMAT, double(t));    \
         massageExponent(msg); \
         break; \
     } \
     return msg; \
 }
 
+TO_STRING_FLOAT(qfloat16, %.3g)
 TO_STRING_FLOAT(float, %g)
-TO_STRING_FLOAT(double, %.12lg)
-
-template <> Q_TESTLIB_EXPORT char *QTest::toString<qfloat16>(const qfloat16 &t)
-{
-    char *msg = new char[16];
-    qsnprintf(msg, 16, "%.3g", static_cast<float>(t));
-    return msg;
-}
+TO_STRING_FLOAT(double, %.12g)
 
 template <> Q_TESTLIB_EXPORT char *QTest::toString<char>(const char &t)
 {
diff --git a/src/testlib/qtestcase.h b/src/testlib/qtestcase.h
index 5d566b835e..794283ff78 100644
--- a/src/testlib/qtestcase.h
+++ b/src/testlib/qtestcase.h
@@ -189,16 +189,8 @@ do {\
     return;\
 } while (false)
 
-#ifdef Q_COMPILER_VARIADIC_MACROS
-
 #define QSKIP(statement, ...) QSKIP_INTERNAL(statement)
 
-#else
-
-#define QSKIP(statement) QSKIP_INTERNAL(statement)
-
-#endif
-
 #define QEXPECT_FAIL(dataIndex, comment, mode)\
 do {\
     if (!QTest::qExpectFail(dataIndex, static_cast<const char *>(comment), QTest::mode, __FILE__, __LINE__))\
diff --git a/src/testlib/qtestcoreelement_p.h b/src/testlib/qtestcoreelement_p.h
index e79efdd87f..84406fed85 100644
--- a/src/testlib/qtestcoreelement_p.h
+++ b/src/testlib/qtestcoreelement_p.h
@@ -80,7 +80,7 @@ class QTestCoreElement: public QTestCoreList<ElementType>
 
 template<class ElementType>
 QTestCoreElement<ElementType>::QTestCoreElement(int t)
-    :listOfAttributes(0), type(QTest::LogElementType(t))
+    :listOfAttributes(nullptr), type(QTest::LogElementType(t))
 {
 }
 
@@ -114,7 +114,7 @@ const char *QTestCoreElement<ElementType>::attributeValue(QTest::AttributeIndex
     if (attrb)
         return attrb->value();
 
-    return 0;
+    return nullptr;
 }
 
 template <class ElementType>
@@ -124,7 +124,7 @@ const char *QTestCoreElement<ElementType>::attributeName(QTest::AttributeIndex i
     if (attrb)
         return attrb->name();
 
-    return 0;
+    return nullptr;
 }
 
 template <class ElementType>
@@ -145,7 +145,7 @@ const char *QTestCoreElement<ElementType>::elementName() const
     if (type != QTest::LET_Undefined)
         return xmlElementNames[type];
 
-    return 0;
+    return nullptr;
 }
 
 template <class ElementType>
@@ -165,7 +165,7 @@ const QTestElementAttribute *QTestCoreElement<ElementType>::attribute(QTest::Att
         iterator = iterator->nextElement();
     }
 
-    return 0;
+    return nullptr;
 }
 
 QT_END_NAMESPACE
diff --git a/src/testlib/qtestcorelist_p.h b/src/testlib/qtestcorelist_p.h
index 4d080f6758..daeb293644 100644
--- a/src/testlib/qtestcorelist_p.h
+++ b/src/testlib/qtestcorelist_p.h
@@ -73,8 +73,8 @@ class QTestCoreList
 
 template <class T>
 QTestCoreList<T>::QTestCoreList()
-    : next(0)
-    , prev(0)
+    : next(nullptr)
+    , prev(nullptr)
 {
 }
 
@@ -82,12 +82,12 @@ template <class T>
 QTestCoreList<T>::~QTestCoreList()
 {
     if (prev) {
-        prev->next = 0;
+        prev->next = nullptr;
     }
     delete prev;
 
     if (next) {
-        next->prev = 0;
+        next->prev = nullptr;
     }
     delete next;
 }
diff --git a/src/testlib/qxmltestlogger_p.h b/src/testlib/qxmltestlogger_p.h
index b85742f939..04ed57d587 100644
--- a/src/testlib/qxmltestlogger_p.h
+++ b/src/testlib/qxmltestlogger_p.h
@@ -71,11 +71,11 @@ public:
     void leaveTestFunction() override;
 
     void addIncident(IncidentTypes type, const char *description,
-                     const char *file = 0, int line = 0) override;
+                     const char *file = nullptr, int line = 0) override;
     void addBenchmarkResult(const QBenchmarkResult &result) override;
 
     void addMessage(MessageTypes type, const QString &message,
-                    const char *file = 0, int line = 0) override;
+                    const char *file = nullptr, int line = 0) override;
 
     static int xmlCdata(QTestCharBuffer *dest, char const* src);
     static int xmlQuote(QTestCharBuffer *dest, char const* src);
diff --git a/src/testlib/qxunittestlogger_p.h b/src/testlib/qxunittestlogger_p.h
index 8fb01fbe61..48f07ddcf2 100644
--- a/src/testlib/qxunittestlogger_p.h
+++ b/src/testlib/qxunittestlogger_p.h
@@ -71,12 +71,12 @@ class QXunitTestLogger : public QAbstractTestLogger
         void leaveTestFunction() override;
 
         void addIncident(IncidentTypes type, const char *description,
-                     const char *file = 0, int line = 0) override;
+                     const char *file = nullptr, int line = 0) override;
         void addBenchmarkResult(const QBenchmarkResult &result) override;
         void addTag(QTestElement* element);
 
         void addMessage(MessageTypes type, const QString &message,
-                    const char *file = 0, int line = 0) override;
+                    const char *file = nullptr, int line = 0) override;
 
     private:
         QTestElement *listOfTestcases;
diff --git a/src/tools/bootstrap/bootstrap.pro b/src/tools/bootstrap/bootstrap.pro
index 83e44ff9a4..3aeca6e7af 100644
--- a/src/tools/bootstrap/bootstrap.pro
+++ b/src/tools/bootstrap/bootstrap.pro
@@ -19,8 +19,6 @@ DEFINES += \
     QT_NO_FOREACH \
     QT_NO_CAST_FROM_ASCII
 
-DEFINES -= QT_EVAL
-
 SOURCES += \
            ../../corelib/codecs/qlatincodec.cpp \
            ../../corelib/codecs/qtextcodec.cpp \
@@ -44,6 +42,7 @@ SOURCES += \
            ../../corelib/io/qfsfileengine.cpp \
            ../../corelib/io/qfsfileengine_iterator.cpp \
            ../../corelib/io/qiodevice.cpp \
+           ../../corelib/io/qipaddress.cpp \
            ../../corelib/io/qfiledevice.cpp \
            ../../corelib/io/qresource.cpp \
            ../../corelib/io/qtemporarydir.cpp \
@@ -52,6 +51,10 @@ SOURCES += \
            ../../corelib/io/qstandardpaths.cpp \
            ../../corelib/io/qloggingcategory.cpp \
            ../../corelib/io/qloggingregistry.cpp \
+           ../../corelib/io/qurl.cpp \
+           ../../corelib/io/qurlidna.cpp \
+           ../../corelib/io/qurlquery.cpp \
+           ../../corelib/io/qurlrecode.cpp \
            ../../corelib/kernel/qcoreapplication.cpp \
            ../../corelib/kernel/qcoreglobaldata.cpp \
            ../../corelib/kernel/qmetatype.cpp \
@@ -93,6 +96,7 @@ SOURCES += \
            ../../corelib/tools/qstringbuilder.cpp \
            ../../corelib/tools/qstring_compat.cpp \
            ../../corelib/tools/qstringlist.cpp \
+           ../../corelib/tools/qstringview.cpp \
            ../../corelib/tools/qversionnumber.cpp \
            ../../corelib/tools/qvsnprintf.cpp \
            ../../xml/dom/qdom.cpp \
diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp
index 02c1fbd394..ab7e400f47 100644
--- a/src/tools/moc/generator.cpp
+++ b/src/tools/moc/generator.cpp
@@ -1652,6 +1652,12 @@ void Generator::generatePluginMetaData()
         jsonObjectToCbor(&map, o);
     }
 
+    if (!cdef->pluginData.uri.isEmpty()) {
+        dev.nextItem("\"URI\"");
+        cbor_encode_int(&map, int(QtPluginMetaDataKeys::URI));
+        cbor_encode_text_string(&map, cdef->pluginData.uri.constData(), cdef->pluginData.uri.size());
+    }
+
     // Add -M args from the command line:
     for (auto it = cdef->pluginData.metaArgs.cbegin(), end = cdef->pluginData.metaArgs.cend(); it != end; ++it) {
         const QJsonArray &a = it.value();
diff --git a/src/tools/moc/generator.h b/src/tools/moc/generator.h
index 134166580b..eae0353199 100644
--- a/src/tools/moc/generator.h
+++ b/src/tools/moc/generator.h
@@ -39,7 +39,7 @@ class Generator
     ClassDef *cdef;
     QVector<uint> meta_data;
 public:
-    Generator(ClassDef *classDef, const QVector<QByteArray> &metaTypes, const QHash<QByteArray, QByteArray> &knownQObjectClasses, const QHash<QByteArray, QByteArray> &knownGadgets, FILE *outfile = 0);
+    Generator(ClassDef *classDef, const QVector<QByteArray> &metaTypes, const QHash<QByteArray, QByteArray> &knownQObjectClasses, const QHash<QByteArray, QByteArray> &knownGadgets, FILE *outfile = nullptr);
     void generateCode();
 private:
     bool registerableMetaType(const QByteArray &propertyType);
diff --git a/src/tools/moc/moc.cpp b/src/tools/moc/moc.cpp
index 5d777ece2e..2f0ea633fa 100644
--- a/src/tools/moc/moc.cpp
+++ b/src/tools/moc/moc.cpp
@@ -159,6 +159,7 @@ Type Moc::parseType()
     bool isVoid = false;
     type.firstToken = lookup();
     for (;;) {
+        skipCxxAttributes();
         switch (next()) {
             case SIGNED:
             case UNSIGNED:
@@ -188,8 +189,11 @@ Type Moc::parseType()
         }
         break;
     }
+
+    skipCxxAttributes();
     test(ENUM) || test(CLASS) || test(STRUCT);
     for(;;) {
+        skipCxxAttributes();
         switch (next()) {
         case IDENTIFIER:
             // void mySlot(unsigned myArg)
@@ -281,6 +285,7 @@ bool Moc::parseEnum(EnumDef *def)
             break;
         next(IDENTIFIER);
         def->values += lexem();
+        skipCxxAttributes();
     } while (test(EQ) ? until(COMMA) : test(COMMA));
     next(RBRACE);
     if (isTypdefEnum) {
@@ -356,6 +361,15 @@ bool Moc::testFunctionAttribute(Token tok, FunctionDef *def)
     return false;
 }
 
+bool Moc::skipCxxAttributes()
+{
+    auto rewind = index;
+    if (test(LBRACK) && test(LBRACK) && until(RBRACK) && test(RBRACK))
+        return true;
+    index = rewind;
+    return false;
+}
+
 bool Moc::testFunctionRevision(FunctionDef *def)
 {
     if (test(Q_REVISION_TOKEN)) {
@@ -381,7 +395,7 @@ bool Moc::parseFunction(FunctionDef *def, bool inMacro)
     //skip modifiers and attributes
     while (test(INLINE) || (test(STATIC) && (def->isStatic = true) == true) ||
         (test(VIRTUAL) && (def->isVirtual = true) == true) //mark as virtual
-        || testFunctionAttribute(def) || testFunctionRevision(def)) {}
+        || skipCxxAttributes() || testFunctionAttribute(def) || testFunctionRevision(def)) {}
     bool templateFunction = (lookup() == TEMPLATE);
     def->type = parseType();
     if (def->type.name.isEmpty()) {
@@ -454,10 +468,11 @@ bool Moc::parseFunction(FunctionDef *def, bool inMacro)
             until(RBRACE);
         else if ((def->isAbstract = test(EQ)))
             until(SEMIC);
+        else if (skipCxxAttributes())
+            until(SEMIC);
         else
             error();
     }
-
     if (scopedFunctionName) {
         const QByteArray msg = "Function declaration " + def->name
                 + " contains extra qualification. Ignoring as signal or slot.";
@@ -475,7 +490,7 @@ bool Moc::parseMaybeFunction(const ClassDef *cdef, FunctionDef *def)
     //skip modifiers and attributes
     while (test(EXPLICIT) || test(INLINE) || (test(STATIC) && (def->isStatic = true) == true) ||
         (test(VIRTUAL) && (def->isVirtual = true) == true) //mark as virtual
-        || testFunctionAttribute(def) || testFunctionRevision(def)) {}
+        || skipCxxAttributes() || testFunctionAttribute(def) || testFunctionRevision(def)) {}
     bool tilde = test(TILDE);
     def->type = parseType();
     if (def->type.name.isEmpty())
@@ -565,6 +580,7 @@ void Moc::parse()
                     } else if (!test(SEMIC)) {
                         NamespaceDef def;
                         def.classname = nsName;
+                        def.doGenerate = currentFilenames.size() <= 1;
 
                         next(LBRACE);
                         def.begin = index - 1;
@@ -572,25 +588,22 @@ void Moc::parse()
                         def.end = index;
                         index = def.begin + 1;
 
-                        const bool parseNamespace = currentFilenames.size() <= 1;
-                        if (parseNamespace) {
-                            for (int i = namespaceList.size() - 1; i >= 0; --i) {
-                                if (inNamespace(&namespaceList.at(i))) {
-                                    def.qualified.prepend(namespaceList.at(i).classname + "::");
-                                }
-                            }
-                            for (const QByteArray &ns : nested) {
-                                NamespaceDef parentNs;
-                                parentNs.classname = ns;
-                                parentNs.qualified = def.qualified;
-                                def.qualified += ns + "::";
-                                parentNs.begin = def.begin;
-                                parentNs.end = def.end;
-                                namespaceList += parentNs;
+                        for (int i = namespaceList.size() - 1; i >= 0; --i) {
+                            if (inNamespace(&namespaceList.at(i))) {
+                                def.qualified.prepend(namespaceList.at(i).classname + "::");
                             }
                         }
+                        for (const QByteArray &ns : nested) {
+                            NamespaceDef parentNs;
+                            parentNs.classname = ns;
+                            parentNs.qualified = def.qualified;
+                            def.qualified += ns + "::";
+                            parentNs.begin = def.begin;
+                            parentNs.end = def.end;
+                            namespaceList += parentNs;
+                        }
 
-                        while (parseNamespace && inNamespace(&def) && hasNext()) {
+                        while (inNamespace(&def) && hasNext()) {
                             switch (next()) {
                             case NAMESPACE:
                                 if (test(IDENTIFIER)) {
@@ -915,7 +928,8 @@ void Moc::parse()
         } else {
             knownGadgets.insert(def.classname, def.qualified);
             knownGadgets.insert(def.qualified, def.qualified);
-            classList += def;
+            if (n.doGenerate)
+                classList += def;
         }
     }
 }
@@ -1180,6 +1194,15 @@ void Moc::createPropertyDef(PropertyDef &propDef)
 
     propDef.type = type;
 
+    auto checkIsFunction = [&](const QByteArray &def, const char *name) {
+        if (def.endsWith(')')) {
+            QByteArray msg = "Providing a function for ";
+            msg += name;
+            msg += " in a property declaration is deprecated and will not be supported in Qt 6 anymore.";
+            warning(msg.constData());
+        }
+    };
+
     next();
     propDef.name = lexem();
     while (test(IDENTIFIER)) {
@@ -1229,11 +1252,13 @@ void Moc::createPropertyDef(PropertyDef &propDef)
                 error(2);
             break;
         case 'S':
-            if (l == "SCRIPTABLE")
+            if (l == "SCRIPTABLE") {
                 propDef.scriptable = v + v2;
-            else if (l == "STORED")
+                checkIsFunction(propDef.scriptable, "SCRIPTABLE");
+            } else if (l == "STORED") {
                 propDef.stored = v + v2;
-            else
+                checkIsFunction(propDef.stored, "STORED");
+            } else
                 error(2);
             break;
         case 'W': if (l != "WRITE") error(2);
@@ -1241,15 +1266,18 @@ void Moc::createPropertyDef(PropertyDef &propDef)
             break;
         case 'D': if (l != "DESIGNABLE") error(2);
             propDef.designable = v + v2;
+            checkIsFunction(propDef.designable, "DESIGNABLE");
             break;
         case 'E': if (l != "EDITABLE") error(2);
             propDef.editable = v + v2;
+            checkIsFunction(propDef.editable, "EDITABLE");
             break;
         case 'N': if (l != "NOTIFY") error(2);
             propDef.notify = v;
             break;
         case 'U': if (l != "USER") error(2);
             propDef.user = v + v2;
+            checkIsFunction(propDef.user, "USER");
             break;
         default:
             error(2);
@@ -1297,6 +1325,9 @@ void Moc::parsePluginData(ClassDef *def)
         if (l == "IID") {
             next(STRING_LITERAL);
             def->pluginData.iid = unquotedLexem();
+        } else if (l == "URI") {
+            next(STRING_LITERAL);
+            def->pluginData.uri = unquotedLexem();
         } else if (l == "FILE") {
             next(STRING_LITERAL);
             QByteArray metaDataFile = unquotedLexem();
@@ -1337,6 +1368,7 @@ void Moc::parsePluginData(ClassDef *def)
                     + " does not contain a valid JSON object. Declaration will be ignored";
             warning(msg.constData());
             def->pluginData.iid = QByteArray();
+            def->pluginData.uri = QByteArray();
             return;
         }
     }
diff --git a/src/tools/moc/moc.h b/src/tools/moc/moc.h
index d6482f4e44..bb1c9501fe 100644
--- a/src/tools/moc/moc.h
+++ b/src/tools/moc/moc.h
@@ -167,6 +167,7 @@ struct ClassDef : BaseDef {
 
     struct PluginData {
         QByteArray iid;
+        QByteArray uri;
         QMap<QString, QJsonArray> metaArgs;
         QJsonDocument metaData;
     } pluginData;
@@ -188,6 +189,7 @@ Q_DECLARE_TYPEINFO(ClassDef::Interface, Q_MOVABLE_TYPE);
 
 struct NamespaceDef : BaseDef {
     bool hasQNamespace = false;
+    bool doGenerate = false;
 };
 Q_DECLARE_TYPEINFO(NamespaceDef, Q_MOVABLE_TYPE);
 
@@ -256,6 +258,8 @@ public:
     bool testFunctionAttribute(Token tok, FunctionDef *def);
     bool testFunctionRevision(FunctionDef *def);
 
+    bool skipCxxAttributes();
+
     void checkSuperClasses(ClassDef *def);
     void checkProperties(ClassDef* cdef);
 };
diff --git a/src/tools/moc/parser.h b/src/tools/moc/parser.h
index bedcbbf7e2..63f4cf0d9a 100644
--- a/src/tools/moc/parser.h
+++ b/src/tools/moc/parser.h
@@ -69,9 +69,9 @@ public:
     inline const Symbol &symbol() { return symbols.at(index-1);}
 
     Q_NORETURN void error(int rollback);
-    Q_NORETURN void error(const char *msg = 0);
-    void warning(const char * = 0);
-    void note(const char * = 0);
+    Q_NORETURN void error(const char *msg = nullptr);
+    void warning(const char * = nullptr);
+    void note(const char * = nullptr);
 
 };
 
diff --git a/src/tools/moc/util/generate_keywords.pro b/src/tools/moc/util/generate_keywords.pro
index 2bbc3ced61..e29738c18a 100644
--- a/src/tools/moc/util/generate_keywords.pro
+++ b/src/tools/moc/util/generate_keywords.pro
@@ -1,4 +1,5 @@
 CONFIG -= moc
 CONFIG += cmdline
+QT = core
 
 SOURCES += generate_keywords.cpp
diff --git a/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp b/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
index 7c6f0bdeef..522c55593f 100644
--- a/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
+++ b/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
@@ -32,7 +32,6 @@
 #include <qfile.h>
 #include <qlist.h>
 #include <qbuffer.h>
-#include <qregexp.h>
 #include <qvector.h>
 #include <qdebug.h>
 
diff --git a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
index ea410cd257..ce4232f3e8 100644
--- a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
+++ b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
@@ -161,22 +161,22 @@ static QString moc(const QString &name)
 
 static QTextStream &writeHeader(QTextStream &ts, bool changesWillBeLost)
 {
-    ts << "/*" << endl
-       << " * This file was generated by " PROGRAMNAME " version " PROGRAMVERSION << endl
-       << " * Command line was: " << commandLine << endl
-       << " *" << endl
-       << " * " PROGRAMNAME " is " PROGRAMCOPYRIGHT << endl
-       << " *" << endl
-       << " * This is an auto-generated file." << endl;
+    ts << "/*" << Qt::endl
+       << " * This file was generated by " PROGRAMNAME " version " PROGRAMVERSION << Qt::endl
+       << " * Command line was: " << commandLine << Qt::endl
+       << " *" << Qt::endl
+       << " * " PROGRAMNAME " is " PROGRAMCOPYRIGHT << Qt::endl
+       << " *" << Qt::endl
+       << " * This is an auto-generated file." << Qt::endl;
 
     if (changesWillBeLost)
-        ts << " * Do not edit! All changes made to it will be lost." << endl;
+        ts << " * Do not edit! All changes made to it will be lost." << Qt::endl;
     else
-        ts << " * This file may have been hand-edited. Look for HAND-EDIT comments" << endl
-           << " * before re-generating it." << endl;
+        ts << " * This file may have been hand-edited. Look for HAND-EDIT comments" << Qt::endl
+           << " * before re-generating it." << Qt::endl;
 
-    ts << " */" << endl
-       << endl;
+    ts << " */" << Qt::endl
+       << Qt::endl;
 
     return ts;
 }
@@ -466,66 +466,66 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
     }
     includeGuard = QString(QLatin1String("%1"))
                    .arg(includeGuard);
-    hs << "#ifndef " << includeGuard << endl
-       << "#define " << includeGuard << endl
-       << endl;
+    hs << "#ifndef " << includeGuard << Qt::endl
+       << "#define " << includeGuard << Qt::endl
+       << Qt::endl;
 
     // include our stuff:
-    hs << "#include <QtCore/QObject>" << endl
+    hs << "#include <QtCore/QObject>" << Qt::endl
        << includeList
-       << "#include <QtDBus/QtDBus>" << endl;
+       << "#include <QtDBus/QtDBus>" << Qt::endl;
 
     for (const QString &include : qAsConst(includes)) {
-        hs << "#include \"" << include << "\"" << endl;
+        hs << "#include \"" << include << "\"" << Qt::endl;
         if (headerName.isEmpty())
-            cs << "#include \"" << include << "\"" << endl;
+            cs << "#include \"" << include << "\"" << Qt::endl;
     }
 
-    hs << endl;
+    hs << Qt::endl;
 
     if (cppName != headerName) {
         if (!headerName.isEmpty() && headerName != QLatin1String("-"))
-            cs << "#include \"" << headerName << "\"" << endl << endl;
+            cs << "#include \"" << headerName << "\"" << Qt::endl << Qt::endl;
     }
 
     for (const QDBusIntrospection::Interface *interface : interfaces) {
         QString className = classNameForInterface(interface->name, Proxy);
 
         // comment:
-        hs << "/*" << endl
-           << " * Proxy class for interface " << interface->name << endl
-           << " */" << endl;
-        cs << "/*" << endl
-           << " * Implementation of interface class " << className << endl
-           << " */" << endl
-           << endl;
+        hs << "/*" << Qt::endl
+           << " * Proxy class for interface " << interface->name << Qt::endl
+           << " */" << Qt::endl;
+        cs << "/*" << Qt::endl
+           << " * Implementation of interface class " << className << Qt::endl
+           << " */" << Qt::endl
+           << Qt::endl;
 
         // class header:
-        hs << "class " << className << ": public QDBusAbstractInterface" << endl
-           << "{" << endl
-           << "    Q_OBJECT" << endl;
+        hs << "class " << className << ": public QDBusAbstractInterface" << Qt::endl
+           << "{" << Qt::endl
+           << "    Q_OBJECT" << Qt::endl;
 
         // the interface name
-        hs << "public:" << endl
-           << "    static inline const char *staticInterfaceName()" << endl
-           << "    { return \"" << interface->name << "\"; }" << endl
-           << endl;
+        hs << "public:" << Qt::endl
+           << "    static inline const char *staticInterfaceName()" << Qt::endl
+           << "    { return \"" << interface->name << "\"; }" << Qt::endl
+           << Qt::endl;
 
         // constructors/destructors:
-        hs << "public:" << endl
-           << "    " << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);" << endl
-           << endl
-           << "    ~" << className << "();" << endl
-           << endl;
-        cs << className << "::" << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent)" << endl
-           << "    : QDBusAbstractInterface(service, path, staticInterfaceName(), connection, parent)" << endl
-           << "{" << endl
-           << "}" << endl
-           << endl
-           << className << "::~" << className << "()" << endl
-           << "{" << endl
-           << "}" << endl
-           << endl;
+        hs << "public:" << Qt::endl
+           << "    " << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);" << Qt::endl
+           << Qt::endl
+           << "    ~" << className << "();" << Qt::endl
+           << Qt::endl;
+        cs << className << "::" << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent)" << Qt::endl
+           << "    : QDBusAbstractInterface(service, path, staticInterfaceName(), connection, parent)" << Qt::endl
+           << "{" << Qt::endl
+           << "}" << Qt::endl
+           << Qt::endl
+           << className << "::~" << className << "()" << Qt::endl
+           << "{" << Qt::endl
+           << "}" << Qt::endl
+           << Qt::endl;
 
         // properties:
         for (const QDBusIntrospection::Property &property : interface->properties) {
@@ -545,27 +545,27 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
                 // it's writeable
                 hs << " WRITE " << setter;
 
-            hs << ")" << endl;
+            hs << ")" << Qt::endl;
 
             // getter:
             if (property.access != QDBusIntrospection::Property::Write) {
-                hs << "    inline " << type << " " << getter << "() const" << endl
+                hs << "    inline " << type << " " << getter << "() const" << Qt::endl
                     << "    { return qvariant_cast< " << type << " >(property(\""
-                    << property.name << "\")); }" << endl;
+                    << property.name << "\")); }" << Qt::endl;
             }
 
             // setter:
             if (property.access != QDBusIntrospection::Property::Read) {
-                hs << "    inline void " << setter << "(" << constRefArg(type) << "value)" << endl
+                hs << "    inline void " << setter << "(" << constRefArg(type) << "value)" << Qt::endl
                    << "    { setProperty(\"" << property.name
-                   << "\", QVariant::fromValue(value)); }" << endl;
+                   << "\", QVariant::fromValue(value)); }" << Qt::endl;
             }
 
-            hs << endl;
+            hs << Qt::endl;
         }
 
         // methods:
-        hs << "public Q_SLOTS: // METHODS" << endl;
+        hs << "public Q_SLOTS: // METHODS" << Qt::endl;
         for (const QDBusIntrospection::Method &method : interface->methods) {
             bool isDeprecated = method.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) == QLatin1String("true");
             bool isNoReply =
@@ -595,26 +595,26 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             QStringList argNames = makeArgNames(method.inputArgs);
             writeArgList(hs, argNames, method.annotations, method.inputArgs);
 
-            hs << ")" << endl
-               << "    {" << endl
-               << "        QList<QVariant> argumentList;" << endl;
+            hs << ")" << Qt::endl
+               << "    {" << Qt::endl
+               << "        QList<QVariant> argumentList;" << Qt::endl;
 
             if (!method.inputArgs.isEmpty()) {
                 hs << "        argumentList";
                 for (int argPos = 0; argPos < method.inputArgs.count(); ++argPos)
                     hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
-                hs << ";" << endl;
+                hs << ";" << Qt::endl;
             }
 
             if (isNoReply)
                 hs << "        callWithArgumentList(QDBus::NoBlock, "
-                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << endl;
+                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
             else
                 hs << "        return asyncCallWithArgumentList(QStringLiteral(\""
-                   << method.name << "\"), argumentList);" << endl;
+                   << method.name << "\"), argumentList);" << Qt::endl;
 
             // close the function:
-            hs << "    }" << endl;
+            hs << "    }" << Qt::endl;
 
             if (method.outputArgs.count() > 1) {
                 // generate the old-form QDBusReply methods with multiple incoming parameters
@@ -627,39 +627,39 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
                 QStringList argNames = makeArgNames(method.inputArgs, method.outputArgs);
                 writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
 
-                hs << ")" << endl
-                   << "    {" << endl
-                   << "        QList<QVariant> argumentList;" << endl;
+                hs << ")" << Qt::endl
+                   << "    {" << Qt::endl
+                   << "        QList<QVariant> argumentList;" << Qt::endl;
 
                 int argPos = 0;
                 if (!method.inputArgs.isEmpty()) {
                     hs << "        argumentList";
                     for (argPos = 0; argPos < method.inputArgs.count(); ++argPos)
                         hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
-                    hs << ";" << endl;
+                    hs << ";" << Qt::endl;
                 }
 
                 hs << "        QDBusMessage reply = callWithArgumentList(QDBus::Block, "
-                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << endl;
+                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
 
                 argPos++;
                 hs << "        if (reply.type() == QDBusMessage::ReplyMessage && reply.arguments().count() == "
-                   << method.outputArgs.count() << ") {" << endl;
+                   << method.outputArgs.count() << ") {" << Qt::endl;
 
                 // yes, starting from 1
                 for (int i = 1; i < method.outputArgs.count(); ++i)
                     hs << "            " << argNames.at(argPos++) << " = qdbus_cast<"
                        << templateArg(qtTypeName(method.outputArgs.at(i).type, method.annotations, i, "Out"))
-                       << ">(reply.arguments().at(" << i << "));" << endl;
-                hs << "        }" << endl
-                   << "        return reply;" << endl
-                   << "    }" << endl;
+                       << ">(reply.arguments().at(" << i << "));" << Qt::endl;
+                hs << "        }" << Qt::endl
+                   << "        return reply;" << Qt::endl
+                   << "    }" << Qt::endl;
             }
 
-            hs << endl;
+            hs << Qt::endl;
         }
 
-        hs << "Q_SIGNALS: // SIGNALS" << endl;
+        hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
         for (const QDBusIntrospection::Signal &signal : interface->signals_) {
             hs << "    ";
             if (signal.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) ==
@@ -671,12 +671,12 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             QStringList argNames = makeArgNames(signal.outputArgs);
             writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
 
-            hs << ");" << endl; // finished for header
+            hs << ");" << Qt::endl; // finished for header
         }
 
         // close the class:
-        hs << "};" << endl
-           << endl;
+        hs << "};" << Qt::endl
+           << Qt::endl;
     }
 
     if (!skipNamespaces) {
@@ -698,17 +698,17 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             // i parts matched
             // close last.arguments().count() - i namespaces:
             for (int j = i; j < last.count(); ++j)
-                hs << QString((last.count() - j - 1 + i) * 2, QLatin1Char(' ')) << "}" << endl;
+                hs << QString((last.count() - j - 1 + i) * 2, QLatin1Char(' ')) << "}" << Qt::endl;
 
             // open current.arguments().count() - i namespaces
             for (int j = i; j < current.count(); ++j)
-                hs << QString(j * 2, QLatin1Char(' ')) << "namespace " << current.at(j) << " {" << endl;
+                hs << QString(j * 2, QLatin1Char(' ')) << "namespace " << current.at(j) << " {" << Qt::endl;
 
             // add this class:
             if (!name.isEmpty()) {
                 hs << QString(current.count() * 2, QLatin1Char(' '))
                    << "typedef ::" << classNameForInterface(it->constData()->name, Proxy)
-                   << " " << name << ";" << endl;
+                   << " " << name << ";" << Qt::endl;
             }
 
             if (it == interfaces.constEnd())
@@ -719,12 +719,12 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
     }
 
     // close the include guard
-    hs << "#endif" << endl;
+    hs << "#endif" << Qt::endl;
 
     QString mocName = moc(filename);
     if (includeMocs && !mocName.isEmpty())
-        cs << endl
-           << "#include \"" << mocName << "\"" << endl;
+        cs << Qt::endl
+           << "#include \"" << mocName << "\"" << Qt::endl;
 
     cs.flush();
     hs.flush();
@@ -772,36 +772,36 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
     }
     includeGuard = QString(QLatin1String("%1"))
                    .arg(includeGuard);
-    hs << "#ifndef " << includeGuard << endl
-       << "#define " << includeGuard << endl
-       << endl;
+    hs << "#ifndef " << includeGuard << Qt::endl
+       << "#define " << includeGuard << Qt::endl
+       << Qt::endl;
 
     // include our stuff:
-    hs << "#include <QtCore/QObject>" << endl;
+    hs << "#include <QtCore/QObject>" << Qt::endl;
     if (cppName == headerName)
-        hs << "#include <QtCore/QMetaObject>" << endl
-           << "#include <QtCore/QVariant>" << endl;
-    hs << "#include <QtDBus/QtDBus>" << endl;
+        hs << "#include <QtCore/QMetaObject>" << Qt::endl
+           << "#include <QtCore/QVariant>" << Qt::endl;
+    hs << "#include <QtDBus/QtDBus>" << Qt::endl;
 
     for (const QString &include : qAsConst(includes)) {
-        hs << "#include \"" << include << "\"" << endl;
+        hs << "#include \"" << include << "\"" << Qt::endl;
         if (headerName.isEmpty())
-            cs << "#include \"" << include << "\"" << endl;
+            cs << "#include \"" << include << "\"" << Qt::endl;
     }
 
     if (cppName != headerName) {
         if (!headerName.isEmpty() && headerName != QLatin1String("-"))
-            cs << "#include \"" << headerName << "\"" << endl;
+            cs << "#include \"" << headerName << "\"" << Qt::endl;
 
-        cs << "#include <QtCore/QMetaObject>" << endl
+        cs << "#include <QtCore/QMetaObject>" << Qt::endl
            << includeList
-           << endl;
+           << Qt::endl;
         hs << forwardDeclarations;
     } else {
         hs << includeList;
     }
 
-    hs << endl;
+    hs << Qt::endl;
 
     QString parent = parentClassName;
     if (parentClassName.isEmpty())
@@ -811,47 +811,47 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
         QString className = classNameForInterface(interface->name, Adaptor);
 
         // comment:
-        hs << "/*" << endl
-           << " * Adaptor class for interface " << interface->name << endl
-           << " */" << endl;
-        cs << "/*" << endl
-           << " * Implementation of adaptor class " << className << endl
-           << " */" << endl
-           << endl;
+        hs << "/*" << Qt::endl
+           << " * Adaptor class for interface " << interface->name << Qt::endl
+           << " */" << Qt::endl;
+        cs << "/*" << Qt::endl
+           << " * Implementation of adaptor class " << className << Qt::endl
+           << " */" << Qt::endl
+           << Qt::endl;
 
         // class header:
-        hs << "class " << className << ": public QDBusAbstractAdaptor" << endl
-           << "{" << endl
-           << "    Q_OBJECT" << endl
-           << "    Q_CLASSINFO(\"D-Bus Interface\", \"" << interface->name << "\")" << endl
-           << "    Q_CLASSINFO(\"D-Bus Introspection\", \"\"" << endl
+        hs << "class " << className << ": public QDBusAbstractAdaptor" << Qt::endl
+           << "{" << Qt::endl
+           << "    Q_OBJECT" << Qt::endl
+           << "    Q_CLASSINFO(\"D-Bus Interface\", \"" << interface->name << "\")" << Qt::endl
+           << "    Q_CLASSINFO(\"D-Bus Introspection\", \"\"" << Qt::endl
            << stringify(interface->introspection)
-           << "        \"\")" << endl
-           << "public:" << endl
-           << "    " << className << "(" << parent << " *parent);" << endl
-           << "    virtual ~" << className << "();" << endl
-           << endl;
+           << "        \"\")" << Qt::endl
+           << "public:" << Qt::endl
+           << "    " << className << "(" << parent << " *parent);" << Qt::endl
+           << "    virtual ~" << className << "();" << Qt::endl
+           << Qt::endl;
 
         if (!parentClassName.isEmpty())
-            hs << "    inline " << parent << " *parent() const" << endl
-               << "    { return static_cast<" << parent << " *>(QObject::parent()); }" << endl
-               << endl;
+            hs << "    inline " << parent << " *parent() const" << Qt::endl
+               << "    { return static_cast<" << parent << " *>(QObject::parent()); }" << Qt::endl
+               << Qt::endl;
 
         // constructor/destructor
-        cs << className << "::" << className << "(" << parent << " *parent)" << endl
-           << "    : QDBusAbstractAdaptor(parent)" << endl
-           << "{" << endl
-           << "    // constructor" << endl
-           << "    setAutoRelaySignals(true);" << endl
-           << "}" << endl
-           << endl
-           << className << "::~" << className << "()" << endl
-           << "{" << endl
-           << "    // destructor" << endl
-           << "}" << endl
-           << endl;
-
-        hs << "public: // PROPERTIES" << endl;
+        cs << className << "::" << className << "(" << parent << " *parent)" << Qt::endl
+           << "    : QDBusAbstractAdaptor(parent)" << Qt::endl
+           << "{" << Qt::endl
+           << "    // constructor" << Qt::endl
+           << "    setAutoRelaySignals(true);" << Qt::endl
+           << "}" << Qt::endl
+           << Qt::endl
+           << className << "::~" << className << "()" << Qt::endl
+           << "{" << Qt::endl
+           << "    // destructor" << Qt::endl
+           << "}" << Qt::endl
+           << Qt::endl;
+
+        hs << "public: // PROPERTIES" << Qt::endl;
         for (const QDBusIntrospection::Property &property : interface->properties) {
             QByteArray type = qtTypeName(property.type, property.annotations);
             QString constRefType = constRefArg(type);
@@ -863,38 +863,38 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                 hs << " READ " << getter;
             if (property.access != QDBusIntrospection::Property::Read)
                 hs << " WRITE " << setter;
-            hs << ")" << endl;
+            hs << ")" << Qt::endl;
 
             // getter:
             if (property.access != QDBusIntrospection::Property::Write) {
-                hs << "    " << type << " " << getter << "() const;" << endl;
+                hs << "    " << type << " " << getter << "() const;" << Qt::endl;
                 cs << type << " "
-                   << className << "::" << getter << "() const" << endl
-                   << "{" << endl
-                   << "    // get the value of property " << property.name << endl
-                   << "    return qvariant_cast< " << type <<" >(parent()->property(\"" << property.name << "\"));" << endl
-                   << "}" << endl
-                   << endl;
+                   << className << "::" << getter << "() const" << Qt::endl
+                   << "{" << Qt::endl
+                   << "    // get the value of property " << property.name << Qt::endl
+                   << "    return qvariant_cast< " << type <<" >(parent()->property(\"" << property.name << "\"));" << Qt::endl
+                   << "}" << Qt::endl
+                   << Qt::endl;
             }
 
             // setter
             if (property.access != QDBusIntrospection::Property::Read) {
-                hs << "    void " << setter << "(" << constRefType << "value);" << endl;
-                cs << "void " << className << "::" << setter << "(" << constRefType << "value)" << endl
-                   << "{" << endl
-                   << "    // set the value of property " << property.name << endl
+                hs << "    void " << setter << "(" << constRefType << "value);" << Qt::endl;
+                cs << "void " << className << "::" << setter << "(" << constRefType << "value)" << Qt::endl
+                   << "{" << Qt::endl
+                   << "    // set the value of property " << property.name << Qt::endl
                    << "    parent()->setProperty(\"" << property.name << "\", QVariant::fromValue(value";
                 if (constRefType.contains(QLatin1String("QDBusVariant")))
                     cs << ".variant()";
-                cs << "));" << endl
-                   << "}" << endl
-                   << endl;
+                cs << "));" << Qt::endl
+                   << "}" << Qt::endl
+                   << Qt::endl;
             }
 
-            hs << endl;
+            hs << Qt::endl;
         }
 
-        hs << "public Q_SLOTS: // METHODS" << endl;
+        hs << "public Q_SLOTS: // METHODS" << Qt::endl;
         for (const QDBusIntrospection::Method &method : interface->methods) {
             bool isNoReply =
                 method.annotations.value(QLatin1String(ANNOTATION_NO_WAIT)) == QLatin1String("true");
@@ -930,10 +930,10 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
             writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
             writeArgList(cs, argNames, method.annotations, method.inputArgs, method.outputArgs);
 
-            hs << ");" << endl; // finished for header
-            cs << ")" << endl
-               << "{" << endl
-               << "    // handle method call " << interface->name << "." << methodName(method) << endl;
+            hs << ");" << Qt::endl; // finished for header
+            cs << ")" << Qt::endl
+               << "{" << Qt::endl
+               << "    // handle method call " << interface->name << "." << methodName(method) << Qt::endl;
 
             // make the call
             bool usingInvokeMethod = false;
@@ -945,7 +945,7 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                 // we are using QMetaObject::invokeMethod
                 if (!returnType.isEmpty())
                     cs << "    " << returnType << " " << argNames.at(method.inputArgs.count())
-                       << ";" << endl;
+                       << ";" << Qt::endl;
 
                 static const char invoke[] = "    QMetaObject::invokeMethod(parent(), \"";
                 cs << invoke << name << "\"";
@@ -966,10 +966,10 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                        << argNames.at(i)
                        << ")";
 
-                cs << ");" << endl;
+                cs << ");" << Qt::endl;
 
                 if (!returnType.isEmpty())
-                    cs << "    return " << argNames.at(method.inputArgs.count()) << ";" << endl;
+                    cs << "    return " << argNames.at(method.inputArgs.count()) << ";" << Qt::endl;
             } else {
                 if (parentClassName.isEmpty())
                     cs << "    //";
@@ -997,13 +997,13 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                     first = false;
                 }
 
-                cs << ");" << endl;
+                cs << ");" << Qt::endl;
             }
-            cs << "}" << endl
-               << endl;
+            cs << "}" << Qt::endl
+               << Qt::endl;
         }
 
-        hs << "Q_SIGNALS: // SIGNALS" << endl;
+        hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
         for (const QDBusIntrospection::Signal &signal : interface->signals_) {
             hs << "    ";
             if (signal.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) ==
@@ -1015,21 +1015,21 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
             QStringList argNames = makeArgNames(signal.outputArgs);
             writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
 
-            hs << ");" << endl; // finished for header
+            hs << ");" << Qt::endl; // finished for header
         }
 
         // close the class:
-        hs << "};" << endl
-           << endl;
+        hs << "};" << Qt::endl
+           << Qt::endl;
     }
 
     // close the include guard
-    hs << "#endif" << endl;
+    hs << "#endif" << Qt::endl;
 
     QString mocName = moc(filename);
     if (includeMocs && !mocName.isEmpty())
-        cs << endl
-           << "#include \"" << mocName << "\"" << endl;
+        cs << Qt::endl
+           << "#include \"" << mocName << "\"" << Qt::endl;
 
     cs.flush();
     hs.flush();
diff --git a/src/tools/qlalr/cppgenerator.cpp b/src/tools/qlalr/cppgenerator.cpp
index 508db696b1..10b2d173ab 100644
--- a/src/tools/qlalr/cppgenerator.cpp
+++ b/src/tools/qlalr/cppgenerator.cpp
@@ -43,7 +43,7 @@ void generateSeparator(int i, QTextStream &out)
     if (!(i % 10)) {
         if (i)
             out << ",";
-        out << endl << "    ";
+        out << Qt::endl << "    ";
     } else {
         out << ", ";
     }
@@ -187,14 +187,14 @@ void CppGenerator::operator () ()
                 {
                   if (verbose)
                     qout() << "*** Warning. Found a reduce/reduce conflict in state " << q << " on token ``" << s << "'' between rule "
-                         << r << " and " << -u << endl;
+                         << r << " and " << -u << Qt::endl;
 
                   ++reduce_reduce_conflict_count;
 
                   u = qMax (u, -r);
 
                   if (verbose)
-                    qout() << "\tresolved using rule " << -u << endl;
+                    qout() << "\tresolved using rule " << -u << Qt::endl;
                 }
 
               else if (u > 0)
@@ -227,7 +227,7 @@ void CppGenerator::operator () ()
                       ++shift_reduce_conflict_count;
 
                       if (verbose)
-                        qout() << "*** Warning. Found a shift/reduce conflict in state " << q << " on token ``" << s << "'' with rule " << r << endl;
+                        qout() << "*** Warning. Found a shift/reduce conflict in state " << q << " on token ``" << s << "'' with rule " << r << Qt::endl;
                     }
                 }
             }
@@ -238,11 +238,11 @@ void CppGenerator::operator () ()
     {
       if (shift_reduce_conflict_count != grammar.expected_shift_reduce
           || reduce_reduce_conflict_count != grammar.expected_reduce_reduce)
-        qerr() << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << endl;
+        qerr() << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << Qt::endl;
 
       if (verbose)
-        qout() << endl << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << endl
-             << endl;
+        qout() << Qt::endl << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << Qt::endl
+             << Qt::endl;
     }
 
   QBitArray used_rules (grammar.rules.count ());
@@ -266,7 +266,7 @@ void CppGenerator::operator () ()
           RulePointer rule = grammar.rules.begin () + i;
 
           if (rule != grammar.goal)
-            qerr() << "*** Warning: Rule ``" << *rule << "'' is useless!" << endl;
+            qerr() << "*** Warning: Rule ``" << *rule << "'' is useless!" << Qt::endl;
         }
     }
 
@@ -348,26 +348,26 @@ void CppGenerator::operator () ()
         {
           out << copyrightHeader()
               << privateCopyrightHeader()
-              << endl;
+              << Qt::endl;
         }
 
       out << "// This file was generated by qlalr - DO NOT EDIT!\n";
 
-      out << startIncludeGuard(grammar.merged_output) << endl;
+      out << startIncludeGuard(grammar.merged_output) << Qt::endl;
 
       if (copyright) {
-          out << "#if defined(ERROR)" << endl
-              << "#  undef ERROR" << endl
-              << "#endif" << endl << endl;
+          out << "#if defined(ERROR)" << Qt::endl
+              << "#  undef ERROR" << Qt::endl
+              << "#endif" << Qt::endl << Qt::endl;
       }
 
       generateDecl (out);
       generateImpl (out);
       out << p.decls();
       out << p.impls();
-      out << endl;
+      out << Qt::endl;
 
-      out << endIncludeGuard(grammar.merged_output) << endl;
+      out << endIncludeGuard(grammar.merged_output) << Qt::endl;
 
       return;
     }
@@ -388,24 +388,24 @@ void CppGenerator::operator () ()
       {
         out << copyrightHeader()
             << privateCopyrightHeader()
-            << endl;
+            << Qt::endl;
       }
 
     out << "// This file was generated by qlalr - DO NOT EDIT!\n";
 
-    out << "#ifndef " << prot << endl
-        << "#define " << prot << endl
-        << endl;
+    out << "#ifndef " << prot << Qt::endl
+        << "#define " << prot << Qt::endl
+        << Qt::endl;
 
     if (copyright) {
-        out << "#include <QtCore/qglobal.h>" << endl << endl;
-        out << "QT_BEGIN_NAMESPACE" << endl << endl;
+        out << "#include <QtCore/qglobal.h>" << Qt::endl << Qt::endl;
+        out << "QT_BEGIN_NAMESPACE" << Qt::endl << Qt::endl;
     }
     generateDecl (out);
     if (copyright)
-        out << "QT_END_NAMESPACE" << endl;
+        out << "QT_END_NAMESPACE" << Qt::endl;
 
-    out << "#endif // " << prot << endl << endl;
+    out << "#endif // " << prot << Qt::endl << Qt::endl;
   } // end decls
 
   { // bits...
@@ -419,12 +419,12 @@ void CppGenerator::operator () ()
 
     out << "// This file was generated by qlalr - DO NOT EDIT!\n";
 
-    out << "#include \"" << declFileName << "\"" << endl << endl;
+    out << "#include \"" << declFileName << "\"" << Qt::endl << Qt::endl;
     if (copyright)
-        out << "QT_BEGIN_NAMESPACE" << endl << endl;
+        out << "QT_BEGIN_NAMESPACE" << Qt::endl << Qt::endl;
     generateImpl(out);
     if (copyright)
-        out << "QT_END_NAMESPACE" << endl;
+        out << "QT_END_NAMESPACE" << Qt::endl;
 
   } // end bits
 
@@ -455,10 +455,10 @@ QString CppGenerator::debugInfoProt() const
 
 void CppGenerator::generateDecl (QTextStream &out)
 {
-  out << "class " << grammar.table_name << endl
-      << "{" << endl
-      << "public:" << endl
-      << "    enum VariousConstants {" << endl;
+  out << "class " << grammar.table_name << Qt::endl
+      << "{" << Qt::endl
+      << "public:" << Qt::endl
+      << "    enum VariousConstants {" << Qt::endl;
 
   for (const Name &t : qAsConst(grammar.terminals))
     {
@@ -474,62 +474,62 @@ void CppGenerator::generateDecl (QTextStream &out)
       else
         name.prepend (grammar.token_prefix);
 
-      out << "        " << name << " = " << value << "," << endl;
+      out << "        " << name << " = " << value << "," << Qt::endl;
     }
 
-  out << endl
-      << "        ACCEPT_STATE = " << accept_state << "," << endl
-      << "        RULE_COUNT = " << grammar.rules.size () << "," << endl
-      << "        STATE_COUNT = " << state_count << "," << endl
-      << "        TERMINAL_COUNT = " << terminal_count << "," << endl
-      << "        NON_TERMINAL_COUNT = " << non_terminal_count << "," << endl
-      << endl
-      << "        GOTO_INDEX_OFFSET = " << compressed_action.index.size () << "," << endl
-      << "        GOTO_INFO_OFFSET = " << compressed_action.info.size () << "," << endl
-      << "        GOTO_CHECK_OFFSET = " << compressed_action.check.size () << endl
-      << "    };" << endl
-      << endl
-      << "    static const char *const     spell[];" << endl
-      << "    static const short             lhs[];" << endl
-      << "    static const short             rhs[];" << endl;
+  out << Qt::endl
+      << "        ACCEPT_STATE = " << accept_state << "," << Qt::endl
+      << "        RULE_COUNT = " << grammar.rules.size () << "," << Qt::endl
+      << "        STATE_COUNT = " << state_count << "," << Qt::endl
+      << "        TERMINAL_COUNT = " << terminal_count << "," << Qt::endl
+      << "        NON_TERMINAL_COUNT = " << non_terminal_count << "," << Qt::endl
+      << Qt::endl
+      << "        GOTO_INDEX_OFFSET = " << compressed_action.index.size () << "," << Qt::endl
+      << "        GOTO_INFO_OFFSET = " << compressed_action.info.size () << "," << Qt::endl
+      << "        GOTO_CHECK_OFFSET = " << compressed_action.check.size () << Qt::endl
+      << "    };" << Qt::endl
+      << Qt::endl
+      << "    static const char *const     spell[];" << Qt::endl
+      << "    static const short             lhs[];" << Qt::endl
+      << "    static const short             rhs[];" << Qt::endl;
 
   if (debug_info)
     {
       QString prot = debugInfoProt();
 
-      out << endl << "#ifndef " << prot << endl
-          << "    static const int     rule_index[];" << endl
-          << "    static const int      rule_info[];" << endl
-          << "#endif // " << prot << endl << endl;
+      out << Qt::endl << "#ifndef " << prot << Qt::endl
+          << "    static const int     rule_index[];" << Qt::endl
+          << "    static const int      rule_info[];" << Qt::endl
+          << "#endif // " << prot << Qt::endl << Qt::endl;
     }
 
-  out << "    static const short    goto_default[];" << endl
-      << "    static const short  action_default[];" << endl
-      << "    static const short    action_index[];" << endl
-      << "    static const short     action_info[];" << endl
-      << "    static const short    action_check[];" << endl
-      << endl
-      << "    static inline int nt_action (int state, int nt)" << endl
-      << "    {" << endl
-      << "        const int yyn = action_index [GOTO_INDEX_OFFSET + state] + nt;" << endl
-      << "        if (yyn < 0 || action_check [GOTO_CHECK_OFFSET + yyn] != nt)" << endl
-      << "            return goto_default [nt];" << endl
-      << endl
-      << "        return action_info [GOTO_INFO_OFFSET + yyn];" << endl
-      << "    }" << endl
-      << endl
-      << "    static inline int t_action (int state, int token)" << endl
-      << "    {" << endl
-      << "        const int yyn = action_index [state] + token;" << endl
-      << endl
-      << "        if (yyn < 0 || action_check [yyn] != token)" << endl
-      << "            return - action_default [state];" << endl
-      << endl
-      << "        return action_info [yyn];" << endl
-      << "    }" << endl
-      << "};" << endl
-      << endl
-      << endl;
+  out << "    static const short    goto_default[];" << Qt::endl
+      << "    static const short  action_default[];" << Qt::endl
+      << "    static const short    action_index[];" << Qt::endl
+      << "    static const short     action_info[];" << Qt::endl
+      << "    static const short    action_check[];" << Qt::endl
+      << Qt::endl
+      << "    static inline int nt_action (int state, int nt)" << Qt::endl
+      << "    {" << Qt::endl
+      << "        const int yyn = action_index [GOTO_INDEX_OFFSET + state] + nt;" << Qt::endl
+      << "        if (yyn < 0 || action_check [GOTO_CHECK_OFFSET + yyn] != nt)" << Qt::endl
+      << "            return goto_default [nt];" << Qt::endl
+      << Qt::endl
+      << "        return action_info [GOTO_INFO_OFFSET + yyn];" << Qt::endl
+      << "    }" << Qt::endl
+      << Qt::endl
+      << "    static inline int t_action (int state, int token)" << Qt::endl
+      << "    {" << Qt::endl
+      << "        const int yyn = action_index [state] + token;" << Qt::endl
+      << Qt::endl
+      << "        if (yyn < 0 || action_check [yyn] != token)" << Qt::endl
+      << "            return - action_default [state];" << Qt::endl
+      << Qt::endl
+      << "        return action_info [yyn];" << Qt::endl
+      << "    }" << Qt::endl
+      << "};" << Qt::endl
+      << Qt::endl
+      << Qt::endl;
 }
 
 void CppGenerator::generateImpl (QTextStream &out)
@@ -568,16 +568,16 @@ void CppGenerator::generateImpl (QTextStream &out)
             {
               first_nt = false;
               QString prot = debugInfoProt();
-              out << endl << "#ifndef " << prot << endl;
+              out << Qt::endl << "#ifndef " << prot << Qt::endl;
             }
           out << "\"" << *t << "\"";
         }
     }
 
   if (debug_info)
-    out << endl << "#endif // " << debugInfoProt() << endl;
+    out << Qt::endl << "#endif // " << debugInfoProt() << Qt::endl;
 
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::lhs [] = {";
   idx = 0;
@@ -587,7 +587,7 @@ void CppGenerator::generateImpl (QTextStream &out)
 
       out << aut.id (rule->lhs);
     }
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::rhs [] = {";
   idx = 0;
@@ -597,13 +597,13 @@ void CppGenerator::generateImpl (QTextStream &out)
 
       out << rule->rhs.size ();
     }
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   if (debug_info)
     {
       QString prot = debugInfoProt();
 
-      out << endl << "#ifndef " << prot << endl;
+      out << Qt::endl << "#ifndef " << prot << Qt::endl;
       out << "const int " << grammar.table_name << "::rule_info [] = {";
       idx = 0;
       for (auto rule = grammar.rules.cbegin (); rule != grammar.rules.cend (); ++rule, ++idx)
@@ -615,7 +615,7 @@ void CppGenerator::generateImpl (QTextStream &out)
           for (const Name &n : rule->rhs)
             out << ", " << name_ids.value (n);
         }
-      out << endl << "};" << endl << endl;
+      out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
       out << "const int " << grammar.table_name << "::rule_index [] = {";
       idx = 0;
@@ -627,8 +627,8 @@ void CppGenerator::generateImpl (QTextStream &out)
           out << offset;
           offset += rule->rhs.size () + 1;
         }
-      out << endl << "};" << endl
-          << "#endif // " << prot << endl << endl;
+      out << Qt::endl << "};" << Qt::endl
+          << "#endif // " << prot << Qt::endl << Qt::endl;
     }
 
   out << "const short " << grammar.table_name << "::action_default [] = {";
@@ -642,27 +642,27 @@ void CppGenerator::generateImpl (QTextStream &out)
       else
         out << "0";
     }
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::goto_default [] = {";
   generateList(defgoto, out);
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::action_index [] = {";
   generateList(compressed_action.index, out);
-  out << "," << endl;
+  out << "," << Qt::endl;
   generateList(compressed_goto.index, out);
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::action_info [] = {";
   generateList(compressed_action.info, out);
-  out << "," << endl;
+  out << "," << Qt::endl;
   generateList(compressed_goto.info, out);
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 
   out << "const short " << grammar.table_name << "::action_check [] = {";
   generateList(compressed_action.check, out);
-  out << "," << endl;
+  out << "," << Qt::endl;
   generateList(compressed_goto.check, out);
-  out << endl << "};" << endl << endl;
+  out << Qt::endl << "};" << Qt::endl << Qt::endl;
 }
diff --git a/src/tools/qlalr/dotgraph.cpp b/src/tools/qlalr/dotgraph.cpp
index 1fa0a1ac77..1d479af2b2 100644
--- a/src/tools/qlalr/dotgraph.cpp
+++ b/src/tools/qlalr/dotgraph.cpp
@@ -41,9 +41,9 @@ void DotGraph::operator () (Automaton *aut)
 {
   Grammar *g = aut->_M_grammar;
 
-  out << "digraph {" << endl << endl;
+  out << "digraph {" << Qt::endl << Qt::endl;
 
-  out << "subgraph Includes {" << endl;
+  out << "subgraph Includes {" << Qt::endl;
   for (Automaton::IncludesGraph::iterator incl = Automaton::IncludesGraph::begin_nodes ();
        incl != Automaton::IncludesGraph::end_nodes (); ++incl)
     {
@@ -53,14 +53,14 @@ void DotGraph::operator () (Automaton *aut)
           out << "\t->\t";
           out << "\"(" << aut->id ((*edge)->data.state) << ", " << (*edge)->data.nt << ")\"\t";
           out << "[label=\"" << incl->data.state->follows [incl->data.nt] << "\"]";
-          out << endl;
+          out << Qt::endl;
         }
     }
-  out << "}" << endl << endl;
+  out << "}" << Qt::endl << Qt::endl;
 
 
-  out << "subgraph LRA {" << endl;
-  //out << "node [shape=record];" << endl << endl;
+  out << "subgraph LRA {" << Qt::endl;
+  //out << "node [shape=record];" << Qt::endl << Qt::endl;
 
   for (StatePointer q = aut->states.begin (); q != aut->states.end (); ++q)
     {
@@ -74,16 +74,16 @@ void DotGraph::operator () (Automaton *aut)
       for (ItemPointer item = q->kernel.begin (); item != q->kernel.end (); ++item)
         out << "| <" << index++ << "> " << *item;
 
-      out << "}\"]" << endl;
+      out << "}\"]" << Qt::endl;
 
       for (Bundle::iterator a = q->bundle.begin (); a != q->bundle.end (); ++a)
         {
           const char *clr = g->isTerminal (a.key ()) ? "blue" : "red";
-          out << "\t" << state << "\t->\t" << aut->id (*a) << "\t[color=\"" << clr << "\",label=\"" << a.key () << "\"]" << endl;
+          out << "\t" << state << "\t->\t" << aut->id (*a) << "\t[color=\"" << clr << "\",label=\"" << a.key () << "\"]" << Qt::endl;
         }
-      out << endl;
+      out << Qt::endl;
     }
 
-  out << "}" << endl;
-  out << endl << endl << "}" << endl;
+  out << "}" << Qt::endl;
+  out << Qt::endl << Qt::endl << "}" << Qt::endl;
 }
diff --git a/src/tools/qlalr/lalr.cpp b/src/tools/qlalr/lalr.cpp
index ec960925aa..2a82eb154e 100644
--- a/src/tools/qlalr/lalr.cpp
+++ b/src/tools/qlalr/lalr.cpp
@@ -313,7 +313,7 @@ void Automaton::buildNullables ()
     }
 
 #ifndef QLALR_NO_DEBUG_NULLABLES
-  qerr() << "nullables = {" << nullables << endl;
+  qerr() << "nullables = {" << nullables << Qt::endl;
 #endif
 }
 
@@ -456,7 +456,7 @@ void Automaton::buildLookbackSets ()
               lookbacks.insert (item, Lookback (p, A));
 
 #ifndef QLALR_NO_DEBUG_LOOKBACKS
-              qerr() << "*** (" << id (q) << ", " << *rule << ") lookback (" << id (p) << ", " << *A << ")" << endl;
+              qerr() << "*** (" << id (q) << ", " << *rule << ") lookback (" << id (p) << ", " << *A << ")" << Qt::endl;
 #endif
             }
         }
@@ -487,7 +487,7 @@ void Automaton::buildDirectReads ()
 
 #ifndef QLALR_NO_DEBUG_DIRECT_READS
       for (QMap<Name, NameSet>::iterator dr = q->reads.begin (); dr != q->reads.end (); ++dr)
-        qerr() << "*** DR(" << id (q) << ", " << dr.key () << ") = " << dr.value () << endl;
+        qerr() << "*** DR(" << id (q) << ", " << dr.key () << ") = " << dr.value () << Qt::endl;
 #endif
     }
 }
@@ -520,7 +520,7 @@ void Automaton::buildReadsDigraph ()
               dump (qerr(), source);
               qerr() << " reads ";
               dump (qerr(), target);
-              qerr() << endl;
+              qerr() << Qt::endl;
 #endif
             }
         }
@@ -555,7 +555,7 @@ void Automaton::visitReadNode (ReadNode node)
   _M_reads_stack.push (node);
 
 #ifndef QLALR_NO_DEBUG_INCLUDES
-  // qerr() << "*** Debug. visit node (" << id (node->data.state) << ", " << node->data.nt << ")  N = " << N << endl;
+  // qerr() << "*** Debug. visit node (" << id (node->data.state) << ", " << node->data.nt << ")  N = " << N << Qt::endl;
 #endif
 
   for (ReadsGraph::edge_iterator edge = node->begin (); edge != node->end (); ++edge)
@@ -635,7 +635,7 @@ void Automaton::buildIncludesDigraph ()
                       source->insertEdge (target);
 
 #ifndef QLALR_NO_DEBUG_INCLUDES
-                      qerr() << "*** (" << id (p) << ", " << *A << ") includes (" << id (pp) << ", " << *name << ")" << endl;
+                      qerr() << "*** (" << id (p) << ", " << *A << ") includes (" << id (pp) << ", " << *name << ")" << Qt::endl;
 #endif // QLALR_NO_DEBUG_INCLUDES
 
                       continue;
@@ -657,7 +657,7 @@ void Automaton::buildIncludesDigraph ()
                   source->insertEdge (target);
 
 #ifndef QLALR_NO_DEBUG_INCLUDES
-                  qerr() << "*** (" << id (p) << ", " << *A << ") includes (" << id (pp) << ", " << *name << ")" << endl;
+                  qerr() << "*** (" << id (p) << ", " << *A << ") includes (" << id (pp) << ", " << *name << ")" << Qt::endl;
 #endif // QLALR_NO_DEBUG_INCLUDES
                 }
             }
@@ -674,7 +674,7 @@ void Automaton::visitIncludeNode (IncludeNode node)
   _M_includes_stack.push (node);
 
 #ifndef QLALR_NO_DEBUG_INCLUDES
-  // qerr() << "*** Debug. visit node (" << id (node->data.state) << ", " << node->data.nt << ")  N = " << N << endl;
+  // qerr() << "*** Debug. visit node (" << id (node->data.state) << ", " << node->data.nt << ")  N = " << N << Qt::endl;
 #endif
 
   for (IncludesGraph::edge_iterator edge = node->begin (); edge != node->end (); ++edge)
@@ -690,7 +690,7 @@ void Automaton::visitIncludeNode (IncludeNode node)
       dump (qerr(), node);
       qerr() << " += follows";
       dump (qerr(), r);
-      qerr() << endl;
+      qerr() << Qt::endl;
 #endif
 
       NameSet &dst = node->data.state->follows [node->data.nt];
@@ -726,7 +726,7 @@ void Automaton::buildLookaheads ()
 #ifndef QLALR_NO_DEBUG_LOOKAHEADS
               qerr() << "(" << id (p) << ", " << *item->rule << ") lookbacks ";
               dump (qerr(), lookback);
-              qerr() << " with follows (" << id (q) << ", " << lookback.nt << ") = " << q->follows [lookback.nt] << endl;
+              qerr() << " with follows (" << id (q) << ", " << lookback.nt << ") = " << q->follows [lookback.nt] << Qt::endl;
 #endif
 
               lookaheads [item].insert (q->follows [lookback.nt].begin (), q->follows [lookback.nt].end ());
diff --git a/src/tools/qlalr/lalr.g b/src/tools/qlalr/lalr.g
index 05d30c21fd..a849800dd5 100644
--- a/src/tools/qlalr/lalr.g
+++ b/src/tools/qlalr/lalr.g
@@ -261,7 +261,7 @@ int Recognizer::nextToken()
       if (ch == QLatin1Char ('"'))
         inp ();
       else
-        qerr() << _M_input_file << ":" << _M_line << ": Warning. Expected `\"'" << endl;
+        qerr() << _M_input_file << ":" << _M_line << ": Warning. Expected `\"'" << Qt::endl;
 
       _M_current_value = text;
       return (token = STRING_LITERAL);
@@ -314,7 +314,7 @@ int Recognizer::nextToken()
         return (token = PREC);
       else
         {
-          qerr() << _M_input_file << ":" << _M_line << ": Unknown keyword `" << text << "'" << endl;
+          qerr() << _M_input_file << ":" << _M_line << ": Unknown keyword `" << text << "'" << Qt::endl;
           exit (EXIT_FAILURE);
           return (token = ERROR);
         }
@@ -659,7 +659,7 @@ case $rule_number: {
 
   if (_M_grammar->terminals.find (_M_current_rule->lhs) != _M_grammar->terminals.end ())
     {
-      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << Qt::endl;
       return false;
     }
 
@@ -683,7 +683,7 @@ case $rule_number: {
 
   if (_M_grammar->terminals.find (_M_current_rule->lhs) != _M_grammar->terminals.end ())
     {
-      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << Qt::endl;
       return false;
     }
 
@@ -712,7 +712,7 @@ case $rule_number: {
   Name tok = _M_grammar->intern (sym(2));
   if (! _M_grammar->isTerminal (tok))
     {
-      qerr() << _M_input_file << ":" << _M_line << ": `" << *tok << " is not a terminal symbol" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": `" << *tok << " is not a terminal symbol" << Qt::endl;
       _M_current_rule->prec = _M_grammar->names.end ();
     }
   else
@@ -758,7 +758,7 @@ case $rule_number: {
         }
     }
 
-  qerr() << _M_input_file << ":" << _M_line << ": Syntax error" << endl;
+  qerr() << _M_input_file << ":" << _M_line << ": Syntax error" << Qt::endl;
   return false;
 }
 
diff --git a/src/tools/qlalr/main.cpp b/src/tools/qlalr/main.cpp
index 5971eb201d..a920b13c85 100644
--- a/src/tools/qlalr/main.cpp
+++ b/src/tools/qlalr/main.cpp
@@ -44,15 +44,15 @@
 
 static void help_me ()
 {
-  qerr() << "Usage: qlalr [options] [input file name]" << endl
-       << endl
-       << "  --help, -h\t\tdisplay this help and exit" << endl
-       << "  --verbose, -v\t\tverbose output" << endl
-       << "  --no-debug\t\tno debug information" << endl
-       << "  --no-lines\t\tno #line directives" << endl
-       << "  --dot\t\t\tgenerate a graph" << endl
-       << "  --qt\t\tadd the Qt copyright header and Qt-specific types and macros" << endl
-       << endl;
+  qerr() << "Usage: qlalr [options] [input file name]" << Qt::endl
+       << Qt::endl
+       << "  --help, -h\t\tdisplay this help and exit" << Qt::endl
+       << "  --verbose, -v\t\tverbose output" << Qt::endl
+       << "  --no-debug\t\tno debug information" << Qt::endl
+       << "  --no-lines\t\tno #line directives" << Qt::endl
+       << "  --dot\t\t\tgenerate a graph" << Qt::endl
+       << "  --qt\t\tadd the Qt copyright header and Qt-specific types and macros" << Qt::endl
+       << Qt::endl;
   exit (0);
 }
 
@@ -91,7 +91,7 @@ int main (int argc, char *argv[])
         file_name = arg;
 
       else
-        qerr() << "*** Warning. Ignore argument `" << arg << "'" << endl;
+        qerr() << "*** Warning. Ignore argument `" << arg << "'" << Qt::endl;
     }
 
   if (file_name.isEmpty ())
@@ -108,13 +108,13 @@ int main (int argc, char *argv[])
 
   if (grammar.rules.isEmpty ())
     {
-      qerr() << "*** Fatal. No rules!" << endl;
+      qerr() << "*** Fatal. No rules!" << Qt::endl;
       exit (EXIT_FAILURE);
     }
 
   else if (grammar.start == grammar.names.end ())
     {
-      qerr() << "*** Fatal. No start symbol!" << endl;
+      qerr() << "*** Fatal. No start symbol!" << Qt::endl;
       exit (EXIT_FAILURE);
     }
 
diff --git a/src/tools/qlalr/parsetable.cpp b/src/tools/qlalr/parsetable.cpp
index c88ac1291e..9e71acebb4 100644
--- a/src/tools/qlalr/parsetable.cpp
+++ b/src/tools/qlalr/parsetable.cpp
@@ -43,13 +43,13 @@ void ParseTable::operator () (Automaton *aut)
 
   int rindex = 1;
   for (RulePointer rule = g->rules.begin (); rule != g->rules.end (); ++rule)
-    out << rindex++ << ")\t" << *rule << endl;
-  out << endl << endl;
+    out << rindex++ << ")\t" << *rule << Qt::endl;
+  out << Qt::endl << Qt::endl;
 
   int index = 0;
   for (StatePointer state = aut->states.begin (); state != aut->states.end (); ++state)
     {
-      out << "state " << index++ << endl << endl;
+      out << "state " << index++ << Qt::endl << Qt::endl;
 
       for (ItemPointer item = state->kernel.begin (); item != state->kernel.end (); ++item)
         {
@@ -58,7 +58,7 @@ void ParseTable::operator () (Automaton *aut)
           if (item->dot == item->end_rhs ())
             out << " " << aut->lookaheads [item];
 
-          out << endl;
+          out << Qt::endl;
         }
 
       bool first = true;
@@ -68,11 +68,11 @@ void ParseTable::operator () (Automaton *aut)
             continue;
 
           if (first)
-            out << endl;
+            out << Qt::endl;
 
           first = false;
 
-          out << "    " << *arrow.key () << " shift, and go to state " << std::distance (aut->states.begin (), *arrow) << endl;
+          out << "    " << *arrow.key () << " shift, and go to state " << std::distance (aut->states.begin (), *arrow) << Qt::endl;
         }
 
       first = true;
@@ -82,13 +82,13 @@ void ParseTable::operator () (Automaton *aut)
             continue;
 
           if (first)
-            out << endl;
+            out << Qt::endl;
 
           first = false;
 
           const auto lookaheads = aut->lookaheads.value(item);
           for (const Name &la : lookaheads)
-            out << "    " << *la << " reduce using rule " << aut->id (item->rule) << " (" << *item->rule->lhs << ")" << endl;
+            out << "    " << *la << " reduce using rule " << aut->id (item->rule) << " (" << *item->rule->lhs << ")" << Qt::endl;
         }
 
       first = true;
@@ -98,19 +98,19 @@ void ParseTable::operator () (Automaton *aut)
             continue;
 
           if (first)
-            out << endl;
+            out << Qt::endl;
 
           first = false;
 
-          out << "    " << *arrow.key () << " go to state " << std::distance (aut->states.begin (), *arrow) << endl;
+          out << "    " << *arrow.key () << " go to state " << std::distance (aut->states.begin (), *arrow) << Qt::endl;
         }
 
       if (state->defaultReduce != g->rules.end ())
         {
-          out << endl
-              << "    $default reduce using rule " << aut->id (state->defaultReduce) << " (" << *state->defaultReduce->lhs << ")" << endl;
+          out << Qt::endl
+              << "    $default reduce using rule " << aut->id (state->defaultReduce) << " (" << *state->defaultReduce->lhs << ")" << Qt::endl;
         }
 
-      out << endl;
+      out << Qt::endl;
     }
 }
diff --git a/src/tools/qlalr/recognizer.cpp b/src/tools/qlalr/recognizer.cpp
index ab797c85d0..3da54c0c6a 100644
--- a/src/tools/qlalr/recognizer.cpp
+++ b/src/tools/qlalr/recognizer.cpp
@@ -97,7 +97,7 @@ int Recognizer::nextToken()
       if (ch == QLatin1Char ('"'))
         inp ();
       else
-        qerr() << _M_input_file << ":" << _M_line << ": Warning. Expected `\"'" << endl;
+        qerr() << _M_input_file << ":" << _M_line << ": Warning. Expected `\"'" << Qt::endl;
 
       _M_current_value = text;
       return (token = STRING_LITERAL);
@@ -150,7 +150,7 @@ int Recognizer::nextToken()
         return (token = PREC);
       else
         {
-          qerr() << _M_input_file << ":" << _M_line << ": Unknown keyword `" << text << "'" << endl;
+          qerr() << _M_input_file << ":" << _M_line << ": Unknown keyword `" << text << "'" << Qt::endl;
           exit (EXIT_FAILURE);
           return (token = ERROR);
         }
@@ -405,7 +405,7 @@ case 34: {
 
   if (_M_grammar->terminals.find (_M_current_rule->lhs) != _M_grammar->terminals.end ())
     {
-      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << Qt::endl;
       return false;
     }
 
@@ -420,7 +420,7 @@ case 38: {
 
   if (_M_grammar->terminals.find (_M_current_rule->lhs) != _M_grammar->terminals.end ())
     {
-      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": Invalid non terminal `" << *_M_current_rule->lhs << "'" << Qt::endl;
       return false;
     }
 
@@ -443,7 +443,7 @@ case 40: {
   Name tok = _M_grammar->intern (sym(2));
   if (! _M_grammar->isTerminal (tok))
     {
-      qerr() << _M_input_file << ":" << _M_line << ": `" << *tok << " is not a terminal symbol" << endl;
+      qerr() << _M_input_file << ":" << _M_line << ": `" << *tok << " is not a terminal symbol" << Qt::endl;
       _M_current_rule->prec = _M_grammar->names.end ();
     }
   else
@@ -474,7 +474,7 @@ case 43: {
         }
     }
 
-  qerr() << _M_input_file << ":" << _M_line << ": Syntax error" << endl;
+  qerr() << _M_input_file << ":" << _M_line << ": Syntax error" << Qt::endl;
   return false;
 }
 
diff --git a/src/tools/qvkgen/qvkgen.cpp b/src/tools/qvkgen/qvkgen.cpp
index 059f9413cb..4db3f26161 100644
--- a/src/tools/qvkgen/qvkgen.cpp
+++ b/src/tools/qvkgen/qvkgen.cpp
@@ -192,22 +192,20 @@ QString VkSpecParser::parseName()
 
 QString funcSig(const VkSpecParser::Command &c, const char *className = nullptr)
 {
-    QString s;
-    s.sprintf("%s %s%s%s", qPrintable(c.cmd.type),
-              (className ? className : ""), (className ? "::" : ""),
-              qPrintable(c.cmd.name));
+    QString s(QString::asprintf("%s %s%s%s", qPrintable(c.cmd.type),
+                                (className ? className : ""), (className ? "::" : ""),
+                                qPrintable(c.cmd.name)));
     if (!c.args.isEmpty()) {
         s += QLatin1Char('(');
         bool first = true;
         for (const VkSpecParser::TypedName &a : c.args) {
-            QString argStr;
-            argStr.sprintf("%s%s%s%s", qPrintable(a.type), (a.type.endsWith(QLatin1Char('*')) ? "" : " "),
-                           qPrintable(a.name), qPrintable(a.typeSuffix));
             if (!first)
                 s += QStringLiteral(", ");
             else
                 first = false;
-            s += argStr;
+            s += QString::asprintf("%s%s%s%s", qPrintable(a.type),
+                                   (a.type.endsWith(QLatin1Char('*')) ? "" : " "),
+                                   qPrintable(a.name), qPrintable(a.typeSuffix));
         }
         s += QLatin1Char(')');
     }
@@ -216,13 +214,12 @@ QString funcSig(const VkSpecParser::Command &c, const char *className = nullptr)
 
 QString funcCall(const VkSpecParser::Command &c, int idx)
 {
-    QString s;
     // template:
     //     [return] reinterpret_cast<PFN_vkEnumeratePhysicalDevices>(d_ptr->m_funcs[0])(instance, pPhysicalDeviceCount, pPhysicalDevices);
-    s.sprintf("%sreinterpret_cast<PFN_%s>(d_ptr->m_funcs[%d])",
-              (c.cmd.type == QStringLiteral("void") ? "" : "return "),
-              qPrintable(c.cmd.name),
-              idx);
+    QString s = QString::asprintf("%sreinterpret_cast<PFN_%s>(d_ptr->m_funcs[%d])",
+                                  (c.cmd.type == QStringLiteral("void") ? "" : "return "),
+                                  qPrintable(c.cmd.name),
+                                  idx);
     if (!c.args.isEmpty()) {
         s += QLatin1Char('(');
         bool first = true;
@@ -338,10 +335,9 @@ bool genVulkanFunctionsH(const QVector<VkSpecParser::Command> &commands, const Q
         *dst += QStringLiteral(";\n");
     }
 
-    QString str;
-    str.sprintf(s, preamble.get(licHeaderFn).constData(), instCmdStr.toUtf8().constData(), devCmdStr.toUtf8().constData());
-
-    f.write(str.toUtf8());
+    f.write(QString::asprintf(s, preamble.get(licHeaderFn).constData(),
+                              instCmdStr.toUtf8().constData(),
+                              devCmdStr.toUtf8().constData()).toUtf8());
 
     return true;
 }
@@ -400,10 +396,7 @@ bool genVulkanFunctionsPH(const QVector<VkSpecParser::Command> &commands, const
                                             [](const VkSpecParser::Command &c) { return c.deviceLevel; });
     const int instLevelCount = commands.count() - devLevelCount;
 
-    QString str;
-    str.sprintf(s, preamble.get(licHeaderFn).constData(), instLevelCount, devLevelCount);
-
-    f.write(str.toUtf8());
+    f.write(QString::asprintf(s, preamble.get(licHeaderFn).constData(), instLevelCount, devLevelCount).toUtf8());
 
     return true;
 }
@@ -478,10 +471,12 @@ bool genVulkanFunctionsPC(const QVector<VkSpecParser::Command> &commands, const
     if (instCmdNamesStr.count() > 2)
         instCmdNamesStr = instCmdNamesStr.left(instCmdNamesStr.count() - 2);
 
-    QString str;
-    str.sprintf(s, preamble.get(licHeaderFn).constData(),
-                instCmdWrapperStr.toUtf8().constData(), instCmdNamesStr.toUtf8().constData(), instIdx,
-                devCmdWrapperStr.toUtf8().constData(), devCmdNamesStr.toUtf8().constData(), commands.count() - instIdx);
+    const QString str =
+            QString::asprintf(s, preamble.get(licHeaderFn).constData(),
+                              instCmdWrapperStr.toUtf8().constData(),
+                              instCmdNamesStr.toUtf8().constData(), instIdx,
+                              devCmdWrapperStr.toUtf8().constData(),
+                              devCmdNamesStr.toUtf8().constData(), commands.count() - instIdx);
 
     f.write(str.toUtf8());
 
diff --git a/src/tools/rcc/main.cpp b/src/tools/rcc/main.cpp
index 6e8c13be15..0eb6766b5a 100644
--- a/src/tools/rcc/main.cpp
+++ b/src/tools/rcc/main.cpp
@@ -155,6 +155,11 @@ int runRcc(int argc, char *argv[])
     QCommandLineOption binaryOption(QStringLiteral("binary"), QStringLiteral("Output a binary file for use as a dynamic resource."));
     parser.addOption(binaryOption);
 
+    QCommandLineOption generatorOption(QStringList{QStringLiteral("g"), QStringLiteral("generator")});
+    generatorOption.setDescription(QStringLiteral("Select generator."));
+    generatorOption.setValueName(QStringLiteral("cpp|python|python2"));
+    parser.addOption(generatorOption);
+
     QCommandLineOption passOption(QStringLiteral("pass"), QStringLiteral("Pass number for big resources"), QStringLiteral("number"));
     parser.addOption(passOption);
 
@@ -220,6 +225,18 @@ int runRcc(int argc, char *argv[])
         library.setCompressThreshold(parser.value(thresholdOption).toInt());
     if (parser.isSet(binaryOption))
         library.setFormat(RCCResourceLibrary::Binary);
+    if (parser.isSet(generatorOption)) {
+        auto value = parser.value(generatorOption);
+        if (value == QLatin1String("cpp"))
+            library.setFormat(RCCResourceLibrary::C_Code);
+        else if (value == QLatin1String("python"))
+            library.setFormat(RCCResourceLibrary::Python3_Code);
+        else if (value == QLatin1String("python2"))
+            library.setFormat(RCCResourceLibrary::Python2_Code);
+        else
+            errorMsg = QLatin1String("Invalid generator: ") + value;
+    }
+
     if (parser.isSet(passOption)) {
         if (parser.value(passOption) == QLatin1String("1"))
             library.setFormat(RCCResourceLibrary::Pass1);
@@ -280,6 +297,8 @@ int runRcc(int argc, char *argv[])
     switch (library.format()) {
         case RCCResourceLibrary::C_Code:
         case RCCResourceLibrary::Pass1:
+        case RCCResourceLibrary::Python3_Code:
+        case RCCResourceLibrary::Python2_Code:
             mode = QIODevice::WriteOnly | QIODevice::Text;
             break;
         case RCCResourceLibrary::Pass2:
diff --git a/src/tools/rcc/rcc.cpp b/src/tools/rcc/rcc.cpp
index 862e574f2d..08fb6fca5f 100644
--- a/src/tools/rcc/rcc.cpp
+++ b/src/tools/rcc/rcc.cpp
@@ -37,6 +37,7 @@
 #include <qfile.h>
 #include <qiodevice.h>
 #include <qlocale.h>
+#include <qregexp.h>
 #include <qstack.h>
 #include <qxmlstream.h>
 
@@ -176,6 +177,8 @@ void RCCFileInfo::writeDataInfo(RCCResourceLibrary &lib)
 {
     const bool text = lib.m_format == RCCResourceLibrary::C_Code;
     const bool pass1 = lib.m_format == RCCResourceLibrary::Pass1;
+    const bool python = lib.m_format == RCCResourceLibrary::Python3_Code
+        || lib.m_format == RCCResourceLibrary::Python2_Code;
     //some info
     if (text || pass1) {
         if (m_language != QLocale::C) {
@@ -222,6 +225,8 @@ void RCCFileInfo::writeDataInfo(RCCResourceLibrary &lib)
     }
     if (text || pass1)
         lib.writeChar('\n');
+    else if (python)
+        lib.writeString("\\\n");
 
     if (lib.formatVersion() >= 2) {
         // last modified time stamp
@@ -236,6 +241,8 @@ void RCCFileInfo::writeDataInfo(RCCResourceLibrary &lib)
         lib.writeNumber8(lastmod);
         if (text || pass1)
             lib.writeChar('\n');
+        else if (python)
+            lib.writeString("\\\n");
     }
 }
 
@@ -246,6 +253,8 @@ qint64 RCCFileInfo::writeDataBlob(RCCResourceLibrary &lib, qint64 offset,
     const bool pass1 = lib.m_format == RCCResourceLibrary::Pass1;
     const bool pass2 = lib.m_format == RCCResourceLibrary::Pass2;
     const bool binary = lib.m_format == RCCResourceLibrary::Binary;
+    const bool python = lib.m_format == RCCResourceLibrary::Python3_Code
+        || lib.m_format == RCCResourceLibrary::Python2_Code;
 
     //capture the offset
     m_dataOffset = offset;
@@ -343,20 +352,24 @@ qint64 RCCFileInfo::writeDataBlob(RCCResourceLibrary &lib, qint64 offset,
     }
 
     // write the length
-
-    if (text || binary || pass2)
+    if (text || binary || pass2 || python)
         lib.writeNumber4(data.size());
     if (text || pass1)
         lib.writeString("\n  ");
+    else if (python)
+        lib.writeString("\\\n");
     offset += 4;
 
     // write the payload
     const char *p = data.constData();
-    if (text) {
+    if (text || python) {
         for (int i = data.size(), j = 0; --i >= 0; --j) {
             lib.writeHex(*p++);
             if (j == 0) {
-                lib.writeString("\n  ");
+                if (text)
+                    lib.writeString("\n  ");
+                else
+                    lib.writeString("\\\n");
                 j = 16;
             }
         }
@@ -368,6 +381,9 @@ qint64 RCCFileInfo::writeDataBlob(RCCResourceLibrary &lib, qint64 offset,
     // done
     if (text || pass1)
         lib.writeString("\n  ");
+    else if (python)
+        lib.writeString("\\\n");
+
     return offset;
 }
 
@@ -375,6 +391,8 @@ qint64 RCCFileInfo::writeDataName(RCCResourceLibrary &lib, qint64 offset)
 {
     const bool text = lib.m_format == RCCResourceLibrary::C_Code;
     const bool pass1 = lib.m_format == RCCResourceLibrary::Pass1;
+    const bool python = lib.m_format == RCCResourceLibrary::Python3_Code
+        || lib.m_format == RCCResourceLibrary::Python2_Code;
 
     // capture the offset
     m_nameOffset = offset;
@@ -390,12 +408,16 @@ qint64 RCCFileInfo::writeDataName(RCCResourceLibrary &lib, qint64 offset)
     lib.writeNumber2(m_name.length());
     if (text || pass1)
         lib.writeString("\n  ");
+    else if (python)
+        lib.writeString("\\\n");
     offset += 2;
 
     // write the hash
     lib.writeNumber4(qt_hash(m_name));
     if (text || pass1)
         lib.writeString("\n  ");
+    else if (python)
+        lib.writeString("\\\n");
     offset += 4;
 
     // write the m_name
@@ -404,12 +426,17 @@ qint64 RCCFileInfo::writeDataName(RCCResourceLibrary &lib, qint64 offset)
         lib.writeNumber2(unicode[i].unicode());
         if ((text || pass1) && i % 16 == 0)
             lib.writeString("\n  ");
+        else if (python && i % 16 == 0)
+            lib.writeString("\\\n");
     }
     offset += m_name.length()*2;
 
     // done
     if (text || pass1)
         lib.writeString("\n  ");
+    else if (python)
+        lib.writeString("\\\n");
+
     return offset;
 }
 
@@ -959,18 +986,37 @@ void RCCResourceLibrary::writeDecimal(int value)
     write(buf, n + 1);  // write() takes a size including terminating NUL
 }
 
+static const char hexDigits[] = "0123456789abcdef";
+
+inline void RCCResourceLibrary::write2HexDigits(quint8 number)
+{
+    writeChar(hexDigits[number >> 4]);
+    writeChar(hexDigits[number & 0xf]);
+}
+
 void RCCResourceLibrary::writeHex(quint8 tmp)
 {
-    const char digits[] = "0123456789abcdef";
-    writeChar('0');
-    writeChar('x');
-    if (tmp < 16) {
-        writeChar(digits[tmp]);
-    } else {
-        writeChar(digits[tmp >> 4]);
-        writeChar(digits[tmp & 0xf]);
+    switch (m_format) {
+    case RCCResourceLibrary::Python3_Code:
+    case RCCResourceLibrary::Python2_Code:
+        if (tmp >= 32 && tmp < 127 && tmp != '"' && tmp != '\\') {
+            writeChar(char(tmp));
+        } else {
+            writeChar('\\');
+            writeChar('x');
+            write2HexDigits(tmp);
+        }
+        break;
+    default:
+        writeChar('0');
+        writeChar('x');
+        if (tmp < 16)
+            writeChar(hexDigits[tmp]);
+        else
+            write2HexDigits(tmp);
+        writeChar(',');
+        break;
     }
-    writeChar(',');
 }
 
 void RCCResourceLibrary::writeNumber2(quint16 number)
@@ -1038,7 +1084,9 @@ void RCCResourceLibrary::writeNumber8(quint64 number)
 
 bool RCCResourceLibrary::writeHeader()
 {
-    if (m_format == C_Code || m_format == Pass1) {
+    switch (m_format) {
+    case C_Code:
+    case Pass1:
         writeString("/****************************************************************************\n");
         writeString("** Resource object code\n");
         writeString("**\n");
@@ -1047,7 +1095,20 @@ bool RCCResourceLibrary::writeHeader()
         writeString("\n**\n");
         writeString("** WARNING! All changes made in this file will be lost!\n");
         writeString( "*****************************************************************************/\n\n");
-    } else if (m_format == Binary) {
+        break;
+    case Python3_Code:
+    case Python2_Code:
+        writeString("# Resource object code (Python ");
+        writeChar(m_format == Python3_Code ? '3' : '2');
+        writeString(")\n");
+        writeString("# Created by: object code\n");
+        writeString("# Created by: The Resource Compiler for Qt version ");
+        writeByteArray(QT_VERSION_STR);
+        writeString("\n");
+        writeString("# WARNING! All changes made in this file will be lost!\n\n");
+        writeString("from PySide2 import QtCore\n\n");
+        break;
+    case Binary:
         writeString("qres");
         writeNumber4(0);
         writeNumber4(0);
@@ -1055,6 +1116,9 @@ bool RCCResourceLibrary::writeHeader()
         writeNumber4(0);
         if (m_formatVersion >= 3)
             writeNumber4(m_overallFlags);
+        break;
+    default:
+        break;
     }
     return true;
 }
@@ -1062,10 +1126,21 @@ bool RCCResourceLibrary::writeHeader()
 bool RCCResourceLibrary::writeDataBlobs()
 {
     Q_ASSERT(m_errorDevice);
-    if (m_format == C_Code) {
+    switch (m_format) {
+    case C_Code:
         writeString("static const unsigned char qt_resource_data[] = {\n");
-    } else if (m_format == Binary) {
+        break;
+    case Python3_Code:
+        writeString("qt_resource_data = b\"\\\n");
+        break;
+    case Python2_Code:
+        writeString("qt_resource_data = \"\\\n");
+        break;
+    case Binary:
         m_dataOffset = m_out.size();
+        break;
+    default:
+        break;
     }
 
     if (!m_root)
@@ -1091,24 +1166,46 @@ bool RCCResourceLibrary::writeDataBlobs()
             }
         }
     }
-    if (m_format == C_Code)
+    switch (m_format) {
+    case C_Code:
         writeString("\n};\n\n");
-    else if (m_format == Pass1) {
+        break;
+    case Python3_Code:
+    case Python2_Code:
+        writeString("\"\n\n");
+        break;
+    case Pass1:
         if (offset < 8)
             offset = 8;
         writeString("\nstatic const unsigned char qt_resource_data[");
         writeByteArray(QByteArray::number(offset));
         writeString("] = { 'Q', 'R', 'C', '_', 'D', 'A', 'T', 'A' };\n\n");
+        break;
+    default:
+        break;
     }
     return true;
 }
 
 bool RCCResourceLibrary::writeDataNames()
 {
-    if (m_format == C_Code || m_format == Pass1)
+    switch (m_format) {
+    case C_Code:
+    case Pass1:
         writeString("static const unsigned char qt_resource_name[] = {\n");
-    else if (m_format == Binary)
+        break;
+    case Python3_Code:
+        writeString("qt_resource_name = b\"\\\n");
+        break;
+    case Python2_Code:
+        writeString("qt_resource_name = \"\\\n");
+        break;
+    case Binary:
         m_namesOffset = m_out.size();
+        break;
+    default:
+        break;
+    }
 
     QHash<QString, int> names;
     QStack<RCCFileInfo*> pending;
@@ -1133,8 +1230,18 @@ bool RCCResourceLibrary::writeDataNames()
             }
         }
     }
-    if (m_format == C_Code || m_format == Pass1)
+    switch (m_format) {
+    case C_Code:
+    case Pass1:
         writeString("\n};\n\n");
+        break;
+    case Python3_Code:
+    case Python2_Code:
+        writeString("\"\n\n");
+        break;
+    default:
+        break;
+    }
     return true;
 }
 
@@ -1149,10 +1256,24 @@ struct qt_rcc_compare_hash
 
 bool RCCResourceLibrary::writeDataStructure()
 {
-    if (m_format == C_Code || m_format == Pass1)
+    switch (m_format) {
+    case C_Code:
+    case Pass1:
         writeString("static const unsigned char qt_resource_struct[] = {\n");
-    else if (m_format == Binary)
+        break;
+    case Python3_Code:
+        writeString("qt_resource_struct = b\"\\\n");
+        break;
+    case Python2_Code:
+        writeString("qt_resource_struct = \"\\\n");
+        break;
+    case Binary:
         m_treeOffset = m_out.size();
+        break;
+    default:
+        break;
+    }
+
     QStack<RCCFileInfo*> pending;
 
     if (!m_root)
@@ -1196,8 +1317,18 @@ bool RCCResourceLibrary::writeDataStructure()
                 pending.push(child);
         }
     }
-    if (m_format == C_Code || m_format == Pass1)
+    switch (m_format) {
+    case C_Code:
+    case Pass1:
         writeString("\n};\n\n");
+        break;
+    case Python3_Code:
+    case Python2_Code:
+        writeString("\"\n\n");
+        break;
+    default:
+        break;
+    }
 
     return true;
 }
@@ -1387,6 +1518,16 @@ bool RCCResourceLibrary::writeInitializer()
             p[i++] = (m_overallFlags >>  8) & 0xff;
             p[i++] = (m_overallFlags >>  0) & 0xff;
         }
+    } else if (m_format == Python3_Code || m_format == Python2_Code) {
+        writeString("def qInitResources():\n");
+        writeString("    QtCore.qRegisterResourceData(0x");
+        write2HexDigits(m_formatVersion);
+        writeString(", qt_resource_struct, qt_resource_name, qt_resource_data)\n\n");
+        writeString("def qCleanupResources():\n");
+        writeString("    QtCore.qUnregisterResourceData(0x");
+        write2HexDigits(m_formatVersion);
+        writeString(", qt_resource_struct, qt_resource_name, qt_resource_data)\n\n");
+        writeString("qInitResources()\n");
     }
     return true;
 }
diff --git a/src/tools/rcc/rcc.h b/src/tools/rcc/rcc.h
index ad1c5cd166..b301355e4f 100644
--- a/src/tools/rcc/rcc.h
+++ b/src/tools/rcc/rcc.h
@@ -58,7 +58,7 @@ public:
 
     bool readFiles(bool listMode, QIODevice &errorDevice);
 
-    enum Format { Binary, C_Code, Pass1, Pass2 };
+    enum Format { Binary, C_Code, Pass1, Pass2, Python3_Code, Python2_Code };
     void setFormat(Format f) { m_format = f; }
     Format format() const { return m_format; }
 
@@ -136,6 +136,7 @@ private:
     void writeAddNamespaceFunction(const QByteArray &name);
     void writeDecimal(int value);
     void writeHex(quint8 number);
+    void write2HexDigits(quint8 number);
     void writeNumber2(quint16 number);
     void writeNumber4(quint32 number);
     void writeNumber8(quint64 number);
diff --git a/src/tools/tracegen/etw.cpp b/src/tools/tracegen/etw.cpp
index e839137915..acd81bd5c1 100644
--- a/src/tools/tracegen/etw.cpp
+++ b/src/tools/tracegen/etw.cpp
@@ -45,7 +45,6 @@
 #include <qfile.h>
 #include <qfileinfo.h>
 #include <qtextstream.h>
-#include <qregexp.h>
 #include <quuid.h>
 
 static inline QString providerVar(const QString &providerName)
diff --git a/src/tools/tracegen/lttng.cpp b/src/tools/tracegen/lttng.cpp
index f0fbca9e16..1aef1b3d17 100644
--- a/src/tools/tracegen/lttng.cpp
+++ b/src/tools/tracegen/lttng.cpp
@@ -46,7 +46,6 @@
 #include <qfile.h>
 #include <qfileinfo.h>
 #include <qtextstream.h>
-#include <qregexp.h>
 #include <qdebug.h>
 
 static void writeCtfMacro(QTextStream &stream, const Tracepoint::Field &field)
diff --git a/src/tools/uic/cpp/cppwriteincludes.h b/src/tools/uic/cpp/cppwriteincludes.h
index e9247f4cc4..79cbd41014 100644
--- a/src/tools/uic/cpp/cppwriteincludes.h
+++ b/src/tools/uic/cpp/cppwriteincludes.h
@@ -40,6 +40,7 @@
 QT_BEGIN_NAMESPACE
 
 class QTextStream;
+class CustomWidgetsInfo;
 class Driver;
 class Uic;
 
@@ -74,6 +75,9 @@ struct WriteIncludes : public TreeWalker
     void acceptIncludes(DomIncludes *node) override;
     void acceptInclude(DomInclude *node) override;
 
+protected:
+     QTextStream &output() const { return m_output; }
+
 private:
     void add(const QString &className, bool determineHeader = true, const QString &header = QString(), bool global = false);
 
diff --git a/src/tools/uic/cpp/cppwriteinitialization.cpp b/src/tools/uic/cpp/cppwriteinitialization.cpp
index 2fb3e502c5..55541db98a 100644
--- a/src/tools/uic/cpp/cppwriteinitialization.cpp
+++ b/src/tools/uic/cpp/cppwriteinitialization.cpp
@@ -71,7 +71,7 @@ namespace {
     // Write a statement to create a spacer item.
     void writeSpacerItem(const DomSpacer *node, QTextStream &output) {
         const QHash<QString, DomProperty *> properties = propertyMap(node->elementProperty());
-                output << "new QSpacerItem(";
+                output << language::operatorNew << "QSpacerItem(";
 
         int w = 0;
         int h = 0;
@@ -102,11 +102,9 @@ namespace {
             if (orientation == QLatin1String("Qt::Vertical") || orientation == QLatin1String("Vertical"))
                 isVspacer = true;
         }
-
-        if (isVspacer)
-            output << "QSizePolicy::Minimum, " << sizeType << ')';
-        else
-            output << sizeType << ", QSizePolicy::Minimum)";
+        const QString horizType = isVspacer ? QLatin1String("QSizePolicy::Minimum") : sizeType;
+        const QString vertType = isVspacer ? sizeType : QLatin1String("QSizePolicy::Minimum");
+        output << language::enumValue(horizType) << ", " << language::enumValue(vertType) << ')';
     }
 
 
@@ -120,7 +118,8 @@ namespace {
     // Write object->setFoo(x);
     template <class Value>
         void writeSetter(const QString &indent, const QString &varName,const QString &setter, Value v, QTextStream &str) {
-            str << indent << varName << "->" << setter << '(' << v << ");\n";
+            str << indent << varName << language::derefPointer
+                << setter << '(' << v << ')' << language::eol;
         }
 
     static inline bool iconHasStatePixmaps(const DomResourceIcon *i) {
@@ -495,8 +494,9 @@ void WriteInitialization::acceptUI(DomUI *node)
 
     const QString widgetClassName = node->elementWidget()->attributeClass();
 
-    m_output << m_option.indent << "void " << "setupUi(" << widgetClassName << " *" << varName << ")\n"
-           << m_option.indent << "{\n";
+    const QString parameterType = widgetClassName + QLatin1String(" *");
+    m_output << m_option.indent
+             << language::startFunctionDefinition1("setupUi", parameterType, varName, m_option.indent);
 
     const QStringList connections = m_uic->databaseInfo()->connections();
     for (int i=0; i<connections.size(); ++i) {
@@ -506,7 +506,8 @@ void WriteInitialization::acceptUI(DomUI *node)
             continue;
 
         const QString varConn = connection + QLatin1String("Connection");
-        m_output << m_indent << varConn << " = QSqlDatabase::database(" << fixString(connection, m_dindent) << ");\n";
+        m_output << m_indent << varConn << " = QSqlDatabase::database("
+            << language::charliteral(connection, m_dindent) << ");\n";
     }
 
     acceptWidget(node->elementWidget());
@@ -527,7 +528,8 @@ void WriteInitialization::acceptUI(DomUI *node)
             continue;
         }
 
-        m_output << m_indent << b.objName << "->setBuddy(" << b.buddy << ");\n";
+        m_output << m_indent << b.objName << language::derefPointer
+            << "setBuddy(" << b.buddy << ')' << language::eol;
     }
     if (!m_buddies.empty())
         m_output << language::closeQtConfig(shortcutConfigKey());
@@ -538,7 +540,8 @@ void WriteInitialization::acceptUI(DomUI *node)
     if (!m_delayedActionInitialization.isEmpty())
         m_output << "\n" << m_delayedActionInitialization;
 
-    m_output << "\n" << m_indent << "retranslateUi(" << varName << ");\n";
+    m_output << "\n" << m_indent << language::self
+        << "retranslateUi(" << varName << ')' << language::eol;
 
     if (node->elementConnections())
         acceptConnections(node->elementConnections());
@@ -546,22 +549,24 @@ void WriteInitialization::acceptUI(DomUI *node)
     if (!m_delayedInitialization.isEmpty())
         m_output << "\n" << m_delayedInitialization << "\n";
 
-    if (m_option.autoConnection)
-        m_output << "\n" << m_indent << "QMetaObject::connectSlotsByName(" << varName << ");\n";
+    if (m_option.autoConnection) {
+        m_output << "\n" << m_indent << "QMetaObject" << language::qualifier
+            << "connectSlotsByName(" << varName << ')' << language::eol;
+    }
 
-    m_output << m_option.indent << "} // setupUi\n\n";
+    m_output << m_option.indent << language::endFunctionDefinition("setupUi");
 
-    if (!m_mainFormUsedInRetranslateUi) {
+    if (!m_mainFormUsedInRetranslateUi && language::language() == Language::Cpp) {
         m_refreshInitialization += m_indent;
         m_refreshInitialization += QLatin1String("Q_UNUSED(");
         m_refreshInitialization += varName ;
         m_refreshInitialization += QLatin1String(");\n");
     }
 
-    m_output << m_option.indent << "void " << "retranslateUi(" << widgetClassName << " *" << varName << ")\n"
-           << m_option.indent << "{\n"
+    m_output << m_option.indent
+           << language::startFunctionDefinition1("retranslateUi", parameterType, varName, m_option.indent)
            << m_refreshInitialization
-           << m_option.indent << "} // retranslateUi\n\n";
+           << m_option.indent << language::endFunctionDefinition("retranslateUi");
 
     m_layoutChain.pop();
     m_widgetChain.pop();
@@ -584,9 +589,11 @@ void WriteInitialization::addWizardPage(const QString &pageVarName, const DomWid
         }
     }
     if (id.isEmpty()) {
-        m_output << m_indent << parentWidget << "->addPage(" << pageVarName << ");\n";
+        m_output << m_indent << parentWidget << language::derefPointer
+            << "addPage(" << pageVarName << ')' << language::eol;
     } else {
-        m_output << m_indent << parentWidget << "->setPage(" << id << ", " << pageVarName << ");\n";
+        m_output << m_indent << parentWidget << language::derefPointer
+            << "setPage(" << id << ", " << pageVarName << ')' << language::eol;
     }
 }
 
@@ -611,8 +618,9 @@ void WriteInitialization::acceptWidget(DomWidget *node)
     const auto *cwi = m_uic->customWidgetsInfo();
 
     if (m_widgetChain.size() != 1) {
-        m_output << m_indent << varName << " = new " << cwi->realClassName(className)
-            << '(' << parentWidget << ");\n";
+        m_output << m_indent << varName << " = " << language::operatorNew
+            << language::fixClassName(cwi->realClassName(className))
+            << '(' << parentWidget << ')' << language::eol;
     }
 
     parentWidget = savedParentWidget;
@@ -664,26 +672,33 @@ void WriteInitialization::acceptWidget(DomWidget *node)
 
     if (cwi->extends(parentClass, QLatin1String("QMainWindow"))) {
         if (cwi->extends(className, QLatin1String("QMenuBar"))) {
-            m_output << m_indent << parentWidget << "->setMenuBar(" << varName <<");\n";
+            m_output << m_indent << parentWidget << language::derefPointer
+                << "setMenuBar(" << varName << ')' << language::eol;
         } else if (cwi->extends(className, QLatin1String("QToolBar"))) {
-            m_output << m_indent << parentWidget << "->addToolBar("
-                     << toolBarAreaStringFromDOMAttributes(attributes) << varName << ");\n";
+            m_output << m_indent << parentWidget << language::derefPointer << "addToolBar("
+                << language::enumValue(toolBarAreaStringFromDOMAttributes(attributes)) << varName
+                << ')' << language::eol;
 
             if (const DomProperty *pbreak = attributes.value(QLatin1String("toolBarBreak"))) {
                 if (pbreak->elementBool() == QLatin1String("true")) {
-                    m_output << m_indent << parentWidget << "->insertToolBarBreak(" <<  varName << ");\n";
+                    m_output << m_indent << parentWidget << language::derefPointer
+                        << "insertToolBarBreak(" <<  varName << ')' << language::eol;
                 }
             }
 
         } else if (cwi->extends(className, QLatin1String("QDockWidget"))) {
-            m_output << m_indent << parentWidget << "->addDockWidget(";
-            if (DomProperty *pstyle = attributes.value(QLatin1String("dockWidgetArea")))
-                m_output << "Qt::" << language::dockWidgetArea(pstyle->elementNumber()) << ", ";
+            m_output << m_indent << parentWidget << language::derefPointer << "addDockWidget(";
+            if (DomProperty *pstyle = attributes.value(QLatin1String("dockWidgetArea"))) {
+                m_output << "Qt" << language::qualifier
+                    << language::dockWidgetArea(pstyle->elementNumber()) << ", ";
+            }
             m_output << varName << ");\n";
         } else if (m_uic->customWidgetsInfo()->extends(className, QLatin1String("QStatusBar"))) {
-            m_output << m_indent << parentWidget << "->setStatusBar(" << varName << ");\n";
+            m_output << m_indent << parentWidget << language::derefPointer
+                << "setStatusBar(" << varName << ')' << language::eol;
         } else {
-                m_output << m_indent << parentWidget << "->setCentralWidget(" << varName << ");\n";
+                m_output << m_indent << parentWidget << language::derefPointer
+                    << "setCentralWidget(" << varName << ')' << language::eol;
         }
     }
 
@@ -692,7 +707,8 @@ void WriteInitialization::acceptWidget(DomWidget *node)
     if (addPageMethod.isEmpty())
         addPageMethod = cwi->simpleContainerAddPageMethod(parentClass);
     if (!addPageMethod.isEmpty()) {
-        m_output << m_indent << parentWidget << "->" << addPageMethod << '(' << varName << ");\n";
+        m_output << m_indent << parentWidget << language::derefPointer
+            << addPageMethod << '(' << varName << ')' << language::eol;
     } else if (m_uic->customWidgetsInfo()->extends(parentClass, QLatin1String("QWizard"))) {
         addWizardPage(varName, node, parentWidget);
     } else if (m_uic->customWidgetsInfo()->extends(parentClass, QLatin1String("QToolBox"))) {
@@ -701,19 +717,21 @@ void WriteInitialization::acceptWidget(DomWidget *node)
         QString icon;
         if (const DomProperty *picon = attributes.value(QLatin1String("icon")))
             icon = QLatin1String(", ") + iconCall(picon); // Side effect: Writes icon definition
+        m_output << m_indent << parentWidget << language::derefPointer << "addItem("
+            << varName << icon << ", " << noTrCall(plabelString, pageDefaultString)
+            << ')' << language::eol;
 
-        m_output << m_indent << parentWidget << "->addItem(" << varName << icon
-            << ", " << noTrCall(plabelString, pageDefaultString) << ");\n";
-
-        autoTrOutput(plabelString, pageDefaultString) << m_indent << parentWidget << "->setItemText("
-                   << parentWidget << "->indexOf(" << varName << "), " << autoTrCall(plabelString, pageDefaultString) << ");\n";
+        autoTrOutput(plabelString, pageDefaultString) << m_indent << parentWidget
+            << language::derefPointer << "setItemText(" << parentWidget
+            << language::derefPointer << "indexOf("  << varName << "), "
+            << autoTrCall(plabelString, pageDefaultString) << ')' << language::eol;
 
         if (DomProperty *ptoolTip = attributes.value(QLatin1String("toolTip"))) {
             autoTrOutput(ptoolTip->elementString())
                 << language::openQtConfig(toolTipConfigKey())
-                << m_indent << parentWidget << "->setItemToolTip(" << parentWidget
-                << "->indexOf(" << varName << "), "
-                << autoTrCall(ptoolTip->elementString()) << ");\n"
+                << m_indent << parentWidget << language::derefPointer << "setItemToolTip(" << parentWidget
+                << language::derefPointer << "indexOf(" << varName << "), "
+                << autoTrCall(ptoolTip->elementString()) << ')' << language::eol
                 << language::closeQtConfig(toolTipConfigKey());
         }
     } else if (m_uic->customWidgetsInfo()->extends(parentClass, QLatin1String("QTabWidget"))) {
@@ -722,26 +740,28 @@ void WriteInitialization::acceptWidget(DomWidget *node)
         QString icon;
         if (const DomProperty *picon = attributes.value(QLatin1String("icon")))
             icon = QLatin1String(", ") + iconCall(picon); // Side effect: Writes icon definition
-        m_output << m_indent << parentWidget << "->addTab(" << varName << icon
-            << ", " << "QString());\n";
+        m_output << m_indent << parentWidget << language::derefPointer << "addTab("
+            << varName << icon << ", " << "QString())" << language::eol;
 
-        autoTrOutput(ptitleString, pageDefaultString) << m_indent << parentWidget << "->setTabText("
-                   << parentWidget << "->indexOf(" << varName << "), " << autoTrCall(ptitleString, pageDefaultString) << ");\n";
+        autoTrOutput(ptitleString, pageDefaultString) << m_indent << parentWidget
+            << language::derefPointer << "setTabText(" << parentWidget
+            << language::derefPointer << "indexOf(" << varName << "), "
+            << autoTrCall(ptitleString, pageDefaultString) << ')' << language::eol;
 
         if (const DomProperty *ptoolTip = attributes.value(QLatin1String("toolTip"))) {
             autoTrOutput(ptoolTip->elementString())
                 << language::openQtConfig(toolTipConfigKey())
-                << m_indent << parentWidget << "->setTabToolTip(" << parentWidget
-                << "->indexOf(" << varName << "), "
-                << autoTrCall(ptoolTip->elementString()) << ");\n"
+                << m_indent << parentWidget << language::derefPointer << "setTabToolTip("
+                << parentWidget << language::derefPointer << "indexOf(" << varName
+                << "), " << autoTrCall(ptoolTip->elementString()) << ')' << language::eol
                 << language::closeQtConfig(toolTipConfigKey());
         }
         if (const DomProperty *pwhatsThis = attributes.value(QLatin1String("whatsThis"))) {
             autoTrOutput(pwhatsThis->elementString())
                 << language::openQtConfig(whatsThisConfigKey())
-                << m_indent << parentWidget << "->setTabWhatsThis(" << parentWidget
-                << "->indexOf(" << varName << "), "
-                << autoTrCall(pwhatsThis->elementString()) << ");\n"
+                << m_indent << parentWidget << language::derefPointer << "setTabWhatsThis("
+                << parentWidget << language::derefPointer << "indexOf(" << varName
+                << "), " << autoTrCall(pwhatsThis->elementString()) << ')' << language::eol
                 << language::closeQtConfig(whatsThisConfigKey());
         }
     }
@@ -776,8 +796,9 @@ void WriteInitialization::acceptWidget(DomWidget *node)
                 headerProperties << fakeProperty;
             }
         }
-        writeProperties(varName + QLatin1String("->header()"), QLatin1String("QHeaderView"),
-                        headerProperties, WritePropertyIgnoreObjectName);
+        writeProperties(varName + language::derefPointer + QLatin1String("header()"),
+                        QLatin1String("QHeaderView"), headerProperties,
+                        WritePropertyIgnoreObjectName);
 
     } else if (cwi->extendsOneOf(className, tables)) {
         static const QLatin1String headerPrefixes[] = {
@@ -795,8 +816,9 @@ void WriteInitialization::acceptWidget(DomWidget *node)
                     headerProperties << fakeProperty;
                 }
             }
-            writeProperties(varName + QLatin1String("->") + headerPrefix + QLatin1String("()"),
-                            QLatin1String("QHeaderView"),
+            const QString headerVar = varName + language::derefPointer
+                + headerPrefix + QLatin1String("()");
+            writeProperties(headerVar, QLatin1String("QHeaderView"),
                             headerProperties, WritePropertyIgnoreObjectName);
         }
     }
@@ -813,8 +835,10 @@ void WriteInitialization::acceptWidget(DomWidget *node)
             continue;
         }
 
-        if (!name.isEmpty())
-            m_output << m_indent << name << "->raise();\n";
+        if (!name.isEmpty()) {
+            m_output << m_indent << name << language::derefPointer << "raise()"
+                << language::eol;
+        }
     }
 }
 
@@ -845,11 +869,13 @@ void WriteInitialization::addButtonGroup(const DomWidget *buttonNode, const QStr
         m_output << m_indent;
         if (createGroupOnTheFly)
             m_output << className << " *";
-        m_output << groupName << " = new " << className << '(' << m_mainFormVarName << ");\n";
+        m_output << groupName << " = " << language::operatorNew
+            << className << '(' << m_mainFormVarName << ')' << language::eol;
         m_buttonGroups.insert(groupName);
         writeProperties(groupName, className, group->elementProperty());
     }
-    m_output << m_indent << groupName << "->addButton(" << varName << ");\n";
+    m_output << m_indent << groupName << language::derefPointer << "addButton("
+        << varName << ')' << language::eol;
 }
 
 void WriteInitialization::acceptLayout(DomLayout *node)
@@ -862,7 +888,7 @@ void WriteInitialization::acceptLayout(DomLayout *node)
 
     bool isGroupBox = false;
 
-    m_output << m_indent << varName << " = new " << className << '(';
+    m_output << m_indent << varName << " = " << language::operatorNew << className << '(';
 
     if (!m_layoutChain.top() && !isGroupBox)
         m_output << m_driver->findOrInsertWidget(m_widgetChain.top());
@@ -954,9 +980,12 @@ void WriteInitialization::writePropertyList(const QString &varName,
         return;
     const QStringList list = value.split(QLatin1Char(','));
     const int count =  list.count();
-    for (int i = 0; i < count; i++)
-        if (list.at(i) != defaultValue)
-            m_output << m_indent << varName << "->" << setFunction << '(' << i << ", " << list.at(i) << ");\n";
+    for (int i = 0; i < count; i++) {
+        if (list.at(i) != defaultValue) {
+            m_output << m_indent << varName << language::derefPointer << setFunction
+                << '(' << i << ", " << list.at(i) << ')' << language::eol;
+        }
+    }
 }
 
 void WriteInitialization::acceptSpacer(DomSpacer *node)
@@ -1003,7 +1032,7 @@ void WriteInitialization::acceptLayoutItem(DomLayoutItem *node)
     const QString layoutName = m_driver->findOrInsertLayout(layout);
     const QString itemName = m_driver->findOrInsertLayoutItem(node);
 
-    m_output << "\n" << m_indent << layoutName << "->"
+    m_output << "\n" << m_indent << layoutName << language::derefPointer << ""
         << layoutAddMethod(node->kind(), layout->attributeClass()) << '(';
 
     if (layout->attributeClass() == QLatin1String("QGridLayout")) {
@@ -1014,16 +1043,16 @@ void WriteInitialization::acceptLayoutItem(DomLayoutItem *node)
         const int colSpan = node->hasAttributeColSpan() ? node->attributeColSpan() : 1;
         m_output << itemName << ", " << row << ", " << col << ", " << rowSpan << ", " << colSpan;
         if (!node->attributeAlignment().isEmpty())
-            m_output << ", " << node->attributeAlignment();
+            m_output << ", " << language::enumValue(node->attributeAlignment());
     } else if (layout->attributeClass() == QLatin1String("QFormLayout")) {
         const int row = node->attributeRow();
         const int colSpan = node->hasAttributeColSpan() ? node->attributeColSpan() : 1;
         const QString role = formLayoutRole(node->attributeColumn(), colSpan);
-        m_output << row << ", " << role << ", " << itemName;
+        m_output << row << ", " << language::enumValue(role) << ", " << itemName;
     } else {
         m_output << itemName;
         if (layout->attributeClass().contains(QLatin1String("Box")) && !node->attributeAlignment().isEmpty())
-            m_output << ", 0, " << node->attributeAlignment();
+            m_output << ", 0, " << language::enumValue(node->attributeAlignment());
     }
     m_output << ");\n\n";
 }
@@ -1036,7 +1065,8 @@ void WriteInitialization::acceptActionGroup(DomActionGroup *node)
     if (m_actionGroupChain.top())
         varName = m_driver->findOrInsertActionGroup(m_actionGroupChain.top());
 
-    m_output << m_indent << actionName << " = new QActionGroup(" << varName << ");\n";
+    m_output << m_indent << actionName << " = " << language::operatorNew
+        << "QActionGroup(" << varName << ");\n";
     writeProperties(actionName, QLatin1String("QActionGroup"), node->elementProperty());
 
     m_actionGroupChain.push(node);
@@ -1056,7 +1086,8 @@ void WriteInitialization::acceptAction(DomAction *node)
     if (m_actionGroupChain.top())
         varName = m_driver->findOrInsertActionGroup(m_actionGroupChain.top());
 
-    m_output << m_indent << actionName << " = new QAction(" << varName << ");\n";
+    m_output << m_indent << actionName << " = " << language::operatorNew
+        << "QAction(" << varName << ')' << language::eol;
     writeProperties(actionName, QLatin1String("QAction"), node->elementProperty());
 }
 
@@ -1069,28 +1100,32 @@ void WriteInitialization::acceptActionRef(DomActionRef *node)
     }
 
     const QString varName = m_driver->findOrInsertWidget(m_widgetChain.top());
-    const bool isSeparator = actionName == QLatin1String("separator");
-    bool isMenu = false;
 
-    if (const DomWidget *w = m_driver->widgetByName(actionName)) {
-        isMenu = m_uic->isMenu(w->attributeClass());
-    } else if (!(m_driver->actionByName(actionName) || isSeparator)) {
-        fprintf(stderr, "%s: Warning: action `%s' not declared\n",
-                qPrintable(m_option.messagePrefix()),
-                actionName.toLatin1().data());
+    if (m_widgetChain.top() && actionName == QLatin1String("separator")) {
+        // separator is always reserved!
+        m_actionOut << m_indent << varName << language::derefPointer
+            << "addSeparator()" << language::eol;
         return;
     }
 
-    if (m_widgetChain.top() && isSeparator) {
-        // separator is always reserved!
-        m_actionOut << m_indent << varName << "->addSeparator();\n";
+    const DomWidget *domWidget = m_driver->widgetByName(actionName);
+    if (domWidget && m_uic->isMenu(domWidget->attributeClass())) {
+        m_actionOut << m_indent << varName << language::derefPointer
+            << "addAction(" << m_driver->findOrInsertWidget(domWidget)
+            << language::derefPointer << "menuAction())" << language::eol;
         return;
     }
 
-    if (isMenu)
-        actionName += QLatin1String("->menuAction()");
+    const DomAction *domAction = m_driver->actionByName(actionName);
+    if (!domAction) {
+        fprintf(stderr, "%s: Warning: action `%s' not declared\n",
+                qPrintable(m_option.messagePrefix()), qPrintable(actionName));
+        return;
+    }
 
-    m_actionOut << m_indent << varName << "->addAction(" << actionName << ");\n";
+    m_actionOut << m_indent << varName << language::derefPointer
+        << "addAction(" << m_driver->findOrInsertAction(domAction)
+        << ')' << language::eol;
 }
 
 QString WriteInitialization::writeStringListProperty(const DomStringList *list) const
@@ -1107,7 +1142,7 @@ QString WriteInitialization::writeStringListProperty(const DomStringList *list)
             str << '\n' << m_indent << "    << " << trCall(values.at(i), comment);
     } else {
         for (int i = 0; i < values.size(); ++i)
-            str << " << QString::fromUtf8(" << fixString(values.at(i), m_dindent) << ')';
+            str << " << " << language::qstring(values.at(i), m_dindent);
     }
     return propertyValue;
 }
@@ -1139,19 +1174,32 @@ void WriteInitialization::writeProperties(const QString &varName,
     if (m_uic->customWidgetsInfo()->extends(className, QLatin1String("QAxWidget"))) {
         DomPropertyMap properties = propertyMap(lst);
         if (DomProperty *p = properties.value(QLatin1String("control"))) {
-            m_output << m_indent << varName << "->setControl(QString::fromUtf8("
-                     << fixString(toString(p->elementString()), m_dindent) << "));\n";
+            m_output << m_indent << varName << language::derefPointer << "setControl("
+                << language::qstring(toString(p->elementString()), m_dindent)
+                << ')' << language::eol;
         }
     }
 
     QString indent;
     if (!m_widgetChain.top()) {
         indent = m_option.indent;
-        m_output << m_indent << "if (" << varName << "->objectName().isEmpty())\n";
+        switch (language::language()) {
+         case Language::Cpp:
+            m_output << m_indent << "if (" << varName << "->objectName().isEmpty())\n";
+            break;
+        case Language::Python:
+           m_output << m_indent << "if " << varName << ".objectName():\n";
+           break;
+        }
+    }
+    if (!(flags & WritePropertyIgnoreObjectName)) {
+        QString objectName = varName;
+        if (!language::self.isEmpty() && objectName.startsWith(language::self))
+            objectName.remove(0, language::self.size());
+        m_output << m_indent << indent
+            << varName << language::derefPointer << "setObjectName("
+            << language::qstring(objectName, m_dindent) << ')' << language::eol;
     }
-    if (!(flags & WritePropertyIgnoreObjectName))
-        m_output << m_indent << indent << varName
-                 << "->setObjectName(QString::fromUtf8(" << fixString(varName, m_dindent) << "));\n";
 
     int leftMargin, topMargin, rightMargin, bottomMargin;
     leftMargin = topMargin = rightMargin = bottomMargin = -1;
@@ -1167,13 +1215,14 @@ void WriteInitialization::writeProperties(const QString &varName,
         // special case for the property `geometry': Do not use position
         if (isTopLevel && propertyName == QLatin1String("geometry") && p->elementRect()) {
             const DomRect *r = p->elementRect();
-            m_output << m_indent << varName << "->resize(" << r->elementWidth() << ", " << r->elementHeight() << ");\n";
+            m_output << m_indent << varName << language::derefPointer << "resize("
+                << r->elementWidth() << ", " << r->elementHeight() << ')' << language::eol;
             continue;
         }
         if (propertyName == QLatin1String("currentRow") // QListWidget::currentRow
                 && m_uic->customWidgetsInfo()->extends(className, QLatin1String("QListWidget"))) {
-            m_delayedOut << m_indent << varName << "->setCurrentRow("
-                       << p->elementNumber() << ");\n";
+            m_delayedOut << m_indent << varName << language::derefPointer
+                << "setCurrentRow(" << p->elementNumber() << ')' << language::eol;
             continue;
         }
         static const QStringList currentIndexWidgets = {
@@ -1182,14 +1231,15 @@ void WriteInitialization::writeProperties(const QString &varName,
         };
         if (propertyName == QLatin1String("currentIndex") // set currentIndex later
             && (m_uic->customWidgetsInfo()->extendsOneOf(className, currentIndexWidgets))) {
-            m_delayedOut << m_indent << varName << "->setCurrentIndex("
-                       << p->elementNumber() << ");\n";
+            m_delayedOut << m_indent << varName << language::derefPointer
+                << "setCurrentIndex(" << p->elementNumber() << ')' << language::eol;
             continue;
         }
         if (propertyName == QLatin1String("tabSpacing")
             && m_uic->customWidgetsInfo()->extends(className, QLatin1String("QToolBox"))) {
-            m_delayedOut << m_indent << varName << "->layout()->setSpacing("
-                       << p->elementNumber() << ");\n";
+            m_delayedOut << m_indent << varName << language::derefPointer
+                << "layout()" << language::derefPointer << "setSpacing("
+                << p->elementNumber() << ')' << language::eol;
             continue;
         }
         if (propertyName == QLatin1String("control") // ActiveQt support
@@ -1216,10 +1266,15 @@ void WriteInitialization::writeProperties(const QString &varName,
             if (p->elementEnum() == QLatin1String("Qt::Vertical"))
                 shape = QLatin1String("QFrame::VLine");
 
-            m_output << m_indent << varName << "->setFrameShape(" << shape << ");\n";
+            m_output << m_indent << varName << language::derefPointer << "setFrameShape("
+                << language::enumValue(shape) << ')' << language::eol;
             // QFrame Default is 'Plain'. Make the line 'Sunken' unless otherwise specified
-            if (!frameShadowEncountered)
-                m_output << m_indent << varName << "->setFrameShadow(QFrame::Sunken);\n";
+            if (!frameShadowEncountered) {
+                m_output << m_indent << varName << language::derefPointer
+                    << "setFrameShadow("
+                    << language::enumValue(QLatin1String("QFrame::Sunken"))
+                    << ')' << language::eol;
+            }
             continue;
         } else if ((flags & WritePropertyIgnoreMargin)  && propertyName == QLatin1String("margin")) {
             continue;
@@ -1251,25 +1306,28 @@ void WriteInitialization::writeProperties(const QString &varName,
 
         QString setFunction;
 
-        if (stdset) {
-            setFunction = QLatin1String("->set")
-                        + propertyName.at(0).toUpper()
-                        + propertyName.midRef(1)
-                        + QLatin1Char('(');
-        } else {
-            setFunction += QLatin1String("->setProperty(\"")
-                         + propertyName
-                         + QLatin1String("\", QVariant");
-            if (p->kind() == DomProperty::Enum)
-                setFunction += QLatin1String("::fromValue");
-            setFunction += QLatin1Char('(');
-        }
+        {
+            QTextStream str(&setFunction);
+            if (stdset) {
+                str << language::derefPointer <<"set" << propertyName.at(0).toUpper()
+                    << propertyName.midRef(1) << '(';
+            } else {
+                str << language::derefPointer << QLatin1String("setProperty(\"")
+                    << propertyName << "\", ";
+                if (language::language() == Language::Cpp) {
+                    str << "QVariant";
+                    if (p->kind() == DomProperty::Enum)
+                        str << "::fromValue";
+                    str << '(';
+                }
+            }
+        } // QTextStream
 
         QString varNewName = varName;
 
         switch (p->kind()) {
         case DomProperty::Bool: {
-            propertyValue = p->elementBool();
+            propertyValue = language::boolValue(p->elementBool() == language::cppTrue);
             break;
         }
         case DomProperty::Color:
@@ -1280,13 +1338,12 @@ void WriteInitialization::writeProperties(const QString &varName,
                 Buddy buddy = { varName, p->elementCstring() };
                 m_buddies.append(std::move(buddy));
             } else {
-                if (stdset)
-                    propertyValue = fixString(p->elementCstring(), m_dindent);
-                else {
-                    propertyValue = QLatin1String("QByteArray(")
-                                  + fixString(p->elementCstring(), m_dindent)
-                                  + QLatin1Char(')');
-                }
+                QTextStream str(&propertyValue);
+                if (!stdset)
+                    str << "QByteArray(";
+                str << language::charliteral(p->elementCstring(), m_dindent);
+                if (!stdset)
+                    str << ')';
             }
             break;
         case DomProperty::Cursor:
@@ -1295,17 +1352,19 @@ void WriteInitialization::writeProperties(const QString &varName,
             break;
         case DomProperty::CursorShape:
             if (p->hasAttributeStdset() && !p->attributeStdset())
-                varNewName += QLatin1String("->viewport()");
-            propertyValue = QString::fromLatin1("QCursor(Qt::%1)")
-                            .arg(p->elementCursorShape());
+                varNewName += language::derefPointer + QLatin1String("viewport()");
+            propertyValue = QLatin1String("QCursor(Qt") + language::qualifier
+                + p->elementCursorShape() + QLatin1Char(')');
             break;
         case DomProperty::Enum:
             propertyValue = p->elementEnum();
-            if (!propertyValue.contains(QLatin1String("::")))
-                propertyValue = className + QLatin1String("::") + propertyValue;
+            if (propertyValue.contains(language::cppQualifier))
+                propertyValue = language::enumValue(propertyValue);
+            else
+                propertyValue.prepend(className + language::qualifier);
             break;
         case DomProperty::Set:
-            propertyValue = p->elementSet();
+            propertyValue = language::enumValue(p->elementSet());
             break;
         case DomProperty::Font:
             propertyValue = writeFontProperties(p->elementFont());
@@ -1319,8 +1378,8 @@ void WriteInitialization::writeProperties(const QString &varName,
         case DomProperty::Palette: {
             const DomPalette *pal = p->elementPalette();
             const QString paletteName = m_driver->unique(QLatin1String("palette"));
-            m_output << m_indent << "QPalette " << paletteName << ";\n";
-
+            m_output << m_indent << language::stackVariable("QPalette", paletteName)
+                << language::eol;
             writeColorGroup(pal->elementActive(), QLatin1String("QPalette::Active"), paletteName);
             writeColorGroup(pal->elementInactive(), QLatin1String("QPalette::Inactive"), paletteName);
             writeColorGroup(pal->elementDisabled(), QLatin1String("QPalette::Disabled"), paletteName);
@@ -1356,15 +1415,16 @@ void WriteInitialization::writeProperties(const QString &varName,
         }
         case DomProperty::Locale: {
              const DomLocale *locale = p->elementLocale();
-             propertyValue = QString::fromLatin1("QLocale(QLocale::%1, QLocale::%2)")
-                             .arg(locale->attributeLanguage(), locale->attributeCountry());
+             QTextStream(&propertyValue) << "QLocale(QLocale" << language::qualifier
+                 << locale->attributeLanguage() << ", QLocale" << language::qualifier
+                 << locale->attributeCountry() << ')';
             break;
         }
         case DomProperty::SizePolicy: {
             const QString spName = writeSizePolicy( p->elementSizePolicy());
-            m_output << m_indent << spName << QString::fromLatin1(
-                ".setHeightForWidth(%1->sizePolicy().hasHeightForWidth());\n")
-                .arg(varName);
+            m_output << m_indent << spName << ".setHeightForWidth("
+                << varName << language::derefPointer << "sizePolicy().hasHeightForWidth())"
+                << language::eol;
 
             propertyValue = spName;
             break;
@@ -1455,8 +1515,8 @@ void WriteInitialization::writeProperties(const QString &varName,
 
         case DomProperty::Url: {
             const DomUrl* u = p->elementUrl();
-            propertyValue = QString::fromLatin1("QUrl(QString::fromUtf8(%1))")
-                            .arg(fixString(u->elementString()->text(), m_dindent));
+            QTextStream(&propertyValue) << "QUrl("
+                << language::qstring(u->elementString()->text(), m_dindent) << ")";
             break;
         }
         case DomProperty::Brush:
@@ -1474,9 +1534,9 @@ void WriteInitialization::writeProperties(const QString &varName,
             if (!configKey.isEmpty())
                 o << language::openQtConfig(configKey);
             o << m_indent << varNewName << setFunction << propertyValue;
-            if (!stdset)
+            if (!stdset && language::language() == Language::Cpp)
                 o << ')';
-            o << ");\n";
+            o << ')' << language::eol;
             if (!configKey.isEmpty())
                o << language::closeQtConfig(configKey);
 
@@ -1488,7 +1548,7 @@ void WriteInitialization::writeProperties(const QString &varName,
         }
     }
     if (leftMargin != -1 || topMargin != -1 || rightMargin != -1 || bottomMargin != -1) {
-        m_output << m_indent << varName << "->setContentsMargins("
+        m_output << m_indent << varName << language::derefPointer << "setContentsMargins("
             << leftMargin << ", " << topMargin << ", "
             << rightMargin << ", " << bottomMargin << ");\n";
     }
@@ -1509,20 +1569,15 @@ QString  WriteInitialization::writeSizePolicy(const DomSizePolicy *sp)
     const QString spName = m_driver->unique(QLatin1String("sizePolicy"));
     m_sizePolicyNameMap.insert(sizePolicyHandle, spName);
 
-    m_output << m_indent << "QSizePolicy " << spName;
-    do {
-        if (sp->hasElementHSizeType() && sp->hasElementVSizeType()) {
-            m_output << "(QSizePolicy::" << language::sizePolicy(sp->elementHSizeType())
-                << ", QSizePolicy::" << language::sizePolicy(sp->elementVSizeType()) << ");\n";
-            break;
-        }
-        if (sp->hasAttributeHSizeType() && sp->hasAttributeVSizeType()) {
-                m_output << "(QSizePolicy::" << sp->attributeHSizeType() << ", QSizePolicy::"
-                << sp->attributeVSizeType() << ");\n";
-            break;
-        }
-        m_output << ";\n";
-    } while (false);
+    m_output << m_indent << language::stackVariableWithInitParameters("QSizePolicy", spName);
+    if (sp->hasElementHSizeType() && sp->hasElementVSizeType()) {
+        m_output << "QSizePolicy" << language::qualifier << language::sizePolicy(sp->elementHSizeType())
+            << ", QSizePolicy" << language::qualifier << language::sizePolicy(sp->elementVSizeType());
+    } else if (sp->hasAttributeHSizeType() && sp->hasAttributeVSizeType()) {
+        m_output << "QSizePolicy" << language::qualifier << sp->attributeHSizeType()
+            << ", QSizePolicy" << language::qualifier << sp->attributeVSizeType();
+    }
+    m_output << ')' << language::eol;
 
     m_output << m_indent << spName << ".setHorizontalStretch("
         << sp->elementHorStretch() << ");\n";
@@ -1546,10 +1601,11 @@ QString WriteInitialization::writeFontProperties(const DomFont *f)
     const QString fontName = m_driver->unique(QLatin1String("font"));
     m_fontPropertiesNameMap.insert(FontHandle(f), fontName);
 
-    m_output << m_indent << "QFont " << fontName << ";\n";
+    m_output << m_indent << language::stackVariable("QFont", fontName)
+        << language::eol;
     if (f->hasElementFamily() && !f->elementFamily().isEmpty()) {
-        m_output << m_indent << fontName << ".setFamily(QString::fromUtf8("
-                 << fixString(f->elementFamily(), m_dindent) << "));\n";
+        m_output << m_indent << fontName << ".setFamily("
+            << language::qstring(f->elementFamily(), m_dindent) << ");\n";
     }
     if (f->hasElementPointSize() && f->elementPointSize() > 0) {
          m_output << m_indent << fontName << ".setPointSize(" << f->elementPointSize()
@@ -1558,39 +1614,51 @@ QString WriteInitialization::writeFontProperties(const DomFont *f)
 
     if (f->hasElementBold()) {
         m_output << m_indent << fontName << ".setBold("
-            << (f->elementBold() ? "true" : "false") << ");\n";
+            << language::boolValue(f->elementBold()) << ')' << language::eol;
     }
     if (f->hasElementItalic()) {
         m_output << m_indent << fontName << ".setItalic("
-            <<  (f->elementItalic() ? "true" : "false") << ");\n";
+            << language::boolValue(f->elementItalic()) << ')' << language::eol;
     }
     if (f->hasElementUnderline()) {
         m_output << m_indent << fontName << ".setUnderline("
-            << (f->elementUnderline() ? "true" : "false") << ");\n";
+            << language::boolValue(f->elementUnderline()) << ')' << language::eol;
     }
     if (f->hasElementWeight() && f->elementWeight() > 0) {
         m_output << m_indent << fontName << ".setWeight("
-            << f->elementWeight() << ");" << endl;
+            << f->elementWeight() << ");" << Qt::endl;
     }
     if (f->hasElementStrikeOut()) {
          m_output << m_indent << fontName << ".setStrikeOut("
-            << (f->elementStrikeOut() ? "true" : "false") << ");\n";
+            << language::boolValue(f->elementStrikeOut()) << ')' << language::eol;
     }
     if (f->hasElementKerning()) {
         m_output << m_indent << fontName << ".setKerning("
-            << (f->elementKerning() ? "true" : "false") << ");\n";
+            << language::boolValue(f->elementKerning()) << ')' << language::eol;
     }
     if (f->hasElementAntialiasing()) {
-        m_output << m_indent << fontName << ".setStyleStrategy("
-            << (f->elementAntialiasing() ? "QFont::PreferDefault" : "QFont::NoAntialias") << ");\n";
+        m_output << m_indent << fontName << ".setStyleStrategy(QFont"
+            << language::qualifier
+            << (f->elementAntialiasing() ? "PreferDefault" : "NoAntialias")
+            << ')' << language::eol;
     }
     if (f->hasElementStyleStrategy()) {
-         m_output << m_indent << fontName << ".setStyleStrategy(QFont::"
-            << f->elementStyleStrategy() << ");\n";
+         m_output << m_indent << fontName << ".setStyleStrategy(QFont"
+            << language::qualifier << f->elementStyleStrategy() << ')' << language::eol;
     }
     return  fontName;
 }
 
+static void writeIconAddFile(QTextStream &output, const QString &indent,
+                             const QString &iconName, const QString &fileName,
+                             const char *mode, const char *state)
+{
+    output << indent << iconName << ".addFile("
+        << language::qstring(fileName, indent) << ", QSize(), QIcon"
+        << language::qualifier << mode << ", QIcon" << language::qualifier
+        << state << ')' << language::eol;
+}
+
 // Post 4.4 write resource icon
 static void writeResourceIcon(QTextStream &output,
                               const QString &iconName,
@@ -1598,91 +1666,92 @@ static void writeResourceIcon(QTextStream &output,
                               const DomResourceIcon *i)
 {
     if (i->hasElementNormalOff()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementNormalOff()->text(), indent)
-               << "), QSize(), QIcon::Normal, QIcon::Off);\n";
+        writeIconAddFile(output, indent, iconName, i->elementNormalOff()->text(),
+                         "Normal", "Off");
     }
     if (i->hasElementNormalOn()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementNormalOn()->text(), indent)
-               << "), QSize(), QIcon::Normal, QIcon::On);\n";
+        writeIconAddFile(output, indent, iconName, i->elementNormalOn()->text(),
+                         "Normal", "On");
     }
     if (i->hasElementDisabledOff()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementDisabledOff()->text(), indent)
-               << "), QSize(), QIcon::Disabled, QIcon::Off);\n";
+        writeIconAddFile(output, indent, iconName, i->elementDisabledOff()->text(),
+                         "Disabled", "Off");
     }
     if (i->hasElementDisabledOn()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementDisabledOn()->text(), indent)
-               << "), QSize(), QIcon::Disabled, QIcon::On);\n";
+        writeIconAddFile(output, indent, iconName, i->elementDisabledOn()->text(),
+                         "Disabled", "On");
     }
     if (i->hasElementActiveOff()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementActiveOff()->text(), indent)
-               << "), QSize(), QIcon::Active, QIcon::Off);\n";
+        writeIconAddFile(output, indent, iconName, i->elementActiveOff()->text(),
+                         "Active", "Off");
     }
     if (i->hasElementActiveOn()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementActiveOn()->text(), indent)
-               << "), QSize(), QIcon::Active, QIcon::On);\n";
+        writeIconAddFile(output, indent, iconName, i->elementActiveOn()->text(),
+                         "Active", "On");
     }
     if (i->hasElementSelectedOff()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementSelectedOff()->text(), indent)
-               << "), QSize(), QIcon::Selected, QIcon::Off);\n";
+        writeIconAddFile(output, indent, iconName, i->elementSelectedOff()->text(),
+                         "Selected", "Off");
     }
     if (i->hasElementSelectedOn()) {
-        output << indent << iconName << ".addFile(QString::fromUtf8("
-               << fixString(i->elementSelectedOn()->text(), indent)
-               << "), QSize(), QIcon::Selected, QIcon::On);\n";
+        writeIconAddFile(output, indent, iconName, i->elementSelectedOff()->text(),
+                         "Selected", "On");
     }
 }
 
+static void writeIconAddPixmap(QTextStream &output, const QString &indent,
+                               const QString &iconName, const QString &call,
+                               const char *mode, const char *state)
+{
+    output << indent << iconName << ".addPixmap(" << call << ", QIcon"
+        << language::qualifier << mode << ", QIcon" << language::qualifier
+        << state << ')' << language::eol;
+}
+
 void WriteInitialization::writePixmapFunctionIcon(QTextStream &output,
                                                   const QString &iconName,
                                                   const QString &indent,
                                                   const DomResourceIcon *i) const
 {
     if (i->hasElementNormalOff()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementNormalOff()->text())
-               << ", QIcon::Normal, QIcon::Off);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementNormalOff()->text()),
+                           "Normal", "Off");
     }
     if (i->hasElementNormalOn()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementNormalOn()->text())
-               << ", QIcon::Normal, QIcon::On);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementNormalOn()->text()),
+                           "Normal", "On");
     }
     if (i->hasElementDisabledOff()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementDisabledOff()->text())
-               << ", QIcon::Disabled, QIcon::Off);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementDisabledOff()->text()),
+                           "Disabled", "Off");
     }
     if (i->hasElementDisabledOn()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementDisabledOn()->text())
-               << ", QIcon::Disabled, QIcon::On);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementDisabledOn()->text()),
+                           "Disabled", "On");
     }
     if (i->hasElementActiveOff()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementActiveOff()->text())
-               << ", QIcon::Active, QIcon::Off);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementActiveOff()->text()),
+                           "Active", "Off");
     }
     if (i->hasElementActiveOn()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementActiveOn()->text())
-               << ", QIcon::Active, QIcon::On);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementActiveOn()->text()),
+                           "Active", "On");
     }
     if (i->hasElementSelectedOff()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementSelectedOff()->text())
-               << ", QIcon::Selected, QIcon::Off);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementSelectedOff()->text()),
+                           "Selected", "Off");
     }
     if (i->hasElementSelectedOn()) {
-        output << indent << iconName << ".addPixmap("
-               << pixCall(QLatin1String("QPixmap"), i->elementSelectedOn()->text())
-               << ", QIcon::Selected, QIcon::On);\n";
+        writeIconAddPixmap(output, indent,  iconName,
+                           pixCall(QLatin1String("QPixmap"), i->elementSelectedOn()->text()),
+                           "Selected", "On");
     }
 }
 
@@ -1691,57 +1760,76 @@ QString WriteInitialization::writeIconProperties(const DomResourceIcon *i)
     // check cache
     const IconHandle iconHandle(i);
     const IconPropertiesNameMap::const_iterator it = m_iconPropertiesNameMap.constFind(iconHandle);
-    if (it != m_iconPropertiesNameMap.constEnd()) {
+    if (it != m_iconPropertiesNameMap.constEnd())
         return it.value();
-    }
 
     // insert with new name
     const QString iconName = m_driver->unique(QLatin1String("icon"));
     m_iconPropertiesNameMap.insert(IconHandle(i), iconName);
-    if (isIconFormat44(i)) {
-        if (i->attributeTheme().isEmpty()) {
-            // No theme: Write resource icon as is
-            m_output << m_indent << "QIcon " << iconName << ";\n";
-            if (m_uic->pixmapFunction().isEmpty())
-                writeResourceIcon(m_output, iconName, m_indent, i);
-            else
-                writePixmapFunctionIcon(m_output, iconName, m_indent, i);
-        } else {
-            // Theme: Generate code to check the theme and default to resource
-            const QString themeIconName = fixString(i->attributeTheme(), QString());
-            if (iconHasStatePixmaps(i)) {
-                // Theme + default state pixmaps:
-                // Generate code to check the theme and default to state pixmaps
-                m_output << m_indent << "QIcon " << iconName << ";\n";
-                const char themeNameStringVariableC[] = "iconThemeName";
-                // Store theme name in a variable
-                m_output << m_indent;
-                if (m_firstThemeIcon) { // Declare variable string
-                    m_output << "QString ";
-                    m_firstThemeIcon = false;
-                }
-                m_output << themeNameStringVariableC << " = QString::fromUtf8("
-                         << themeIconName << ");\n";
-                m_output << m_indent << "if (QIcon::hasThemeIcon("
-                         << themeNameStringVariableC
-                         << ")) {\n"
-                         << m_dindent << iconName << " = QIcon::fromTheme(" << themeNameStringVariableC << ");\n"
-                         << m_indent << "} else {\n";
-                if (m_uic->pixmapFunction().isEmpty())
-                    writeResourceIcon(m_output, iconName, m_dindent, i);
-                else
-                    writePixmapFunctionIcon(m_output, iconName, m_dindent, i);
-                m_output << m_indent << "}\n";
-            } else {
-                // Theme, but no state pixmaps: Construct from theme directly.
-                m_output << m_indent << "QIcon " << iconName
-                         << "(QIcon::fromTheme(QString::fromUtf8("
-                         << themeIconName << ")));\n";
-            } // Theme, but not state
-        }     // >= 4.4
-    } else {  // pre-4.4 legacy
-        m_output <<  m_indent << "const QIcon " << iconName << " = " << pixCall(QLatin1String("QIcon"), i->text())<< ";\n";
+
+    const bool isCpp = language::language() == Language::Cpp;
+
+    if (Q_UNLIKELY(!isIconFormat44(i))) { // pre-4.4 legacy
+        m_output <<  m_indent;
+        if (isCpp)
+            m_output << "const QIcon ";
+        m_output << iconName << " = " << pixCall(QLatin1String("QIcon"), i->text())
+            << language::eol;
+        return iconName;
+    }
+
+    // 4.4 onwards
+    if (i->attributeTheme().isEmpty()) {
+        // No theme: Write resource icon as is
+        m_output << m_indent << language::stackVariable("QIcon", iconName)
+            << language::eol;
+        if (m_uic->pixmapFunction().isEmpty())
+            writeResourceIcon(m_output, iconName, m_indent, i);
+        else
+            writePixmapFunctionIcon(m_output, iconName, m_indent, i);
+        return iconName;
     }
+
+    // Theme: Generate code to check the theme and default to resource
+    if (iconHasStatePixmaps(i)) {
+        // Theme + default state pixmaps:
+        // Generate code to check the theme and default to state pixmaps
+        m_output << m_indent << language::stackVariable("QIcon", iconName) << ";\n";
+        const char themeNameStringVariableC[] = "iconThemeName";
+        // Store theme name in a variable
+        m_output << m_indent;
+        if (m_firstThemeIcon) { // Declare variable string
+            if (isCpp)
+                m_output << "QString ";
+            m_firstThemeIcon = false;
+        }
+        m_output << themeNameStringVariableC << " = "
+            << language::qstring(i->attributeTheme()) << language::eol;
+        m_output << m_indent << "if ";
+        if (isCpp)
+            m_output << '(';
+        m_output << "QIcon" << language::qualifier << "hasThemeIcon("
+            << themeNameStringVariableC << ')' << (isCpp ? ") {" : ":") << '\n'
+            << m_dindent << iconName << " = QIcon" << language::qualifier << "fromTheme("
+            << themeNameStringVariableC << ')' << language::eol
+            << m_indent << (isCpp ? "} else {" : "else:") << '\n';
+        if (m_uic->pixmapFunction().isEmpty())
+            writeResourceIcon(m_output, iconName, m_dindent, i);
+        else
+            writePixmapFunctionIcon(m_output, iconName, m_dindent, i);
+        m_output << m_indent;
+        if (isCpp)
+            m_output << '}';
+        m_output  << '\n';
+        return iconName;
+    }
+
+    // Theme, but no state pixmaps: Construct from theme directly.
+    m_output << m_indent
+        << language::stackVariableWithInitParameters("QIcon", iconName)
+        << "QIcon" << language::qualifier << "fromTheme("
+        << language::qstring(i->attributeTheme()) << "))"
+        << language::eol;
     return iconName;
 }
 
@@ -1777,7 +1865,7 @@ void WriteInitialization::writeColorGroup(DomColorGroup *colorGroup, const QStri
         const DomColor *color = colors.at(i);
 
         m_output << m_indent << paletteName << ".setColor(" << group
-            << ", QPalette::" << language::paletteColorRole(i)
+            << ", QPalette" << language::qualifier << language::paletteColorRole(i)
             << ", " << domColor2QString(color)
             << ");\n";
     }
@@ -1794,8 +1882,9 @@ void WriteInitialization::writeColorGroup(DomColorGroup *colorGroup, const QStri
                     << versionAdded.majorVersion() << ", " << versionAdded.minorVersion()
                     << ", " << versionAdded.microVersion() << ")\n";
             }
-            m_output << m_indent << paletteName << ".setBrush(" << group
-                << ", " << "QPalette::" << roleName
+            m_output << m_indent << paletteName << ".setBrush("
+                << language::enumValue(group) << ", "
+                << "QPalette" << language::qualifier << roleName
                 << ", " << brushName << ");\n";
             if (!versionAdded.isNull())
                 m_output << "#endif\n";
@@ -1842,31 +1931,36 @@ void WriteInitialization::writeBrush(const DomBrush *brush, const QString &brush
         const QString gradientType = gradient->attributeType();
         const QString gradientName = m_driver->unique(QLatin1String("gradient"));
         if (gradientType == QLatin1String("LinearGradient")) {
-            m_output << m_indent << "QLinearGradient " << gradientName
-                << '(' << gradient->attributeStartX()
+            m_output << m_indent
+                << language::stackVariableWithInitParameters("QLinearGradient", gradientName)
+                << gradient->attributeStartX()
                 << ", " << gradient->attributeStartY()
                 << ", " << gradient->attributeEndX()
-                << ", " << gradient->attributeEndY() << ");\n";
+                << ", " << gradient->attributeEndY() << ')' << language::eol;
         } else if (gradientType == QLatin1String("RadialGradient")) {
-            m_output << m_indent << "QRadialGradient " << gradientName
-                << '(' << gradient->attributeCentralX()
+            m_output << m_indent
+                << language::stackVariableWithInitParameters("QRadialGradient", gradientName)
+                << gradient->attributeCentralX()
                 << ", " << gradient->attributeCentralY()
                 << ", " << gradient->attributeRadius()
                 << ", " << gradient->attributeFocalX()
-                << ", " << gradient->attributeFocalY() << ");\n";
+                << ", " << gradient->attributeFocalY() << ')' << language::eol;
         } else if (gradientType == QLatin1String("ConicalGradient")) {
-            m_output << m_indent << "QConicalGradient " << gradientName
-                << '(' << gradient->attributeCentralX()
+            m_output << m_indent
+                << language::stackVariableWithInitParameters("QConicalGradient", gradientName)
+                << gradient->attributeCentralX()
                 << ", " << gradient->attributeCentralY()
-                << ", " << gradient->attributeAngle() << ");\n";
+                << ", " << gradient->attributeAngle() << ')' << language::eol;
         }
 
-        m_output << m_indent << gradientName << ".setSpread(QGradient::"
-            << gradient->attributeSpread() << ");\n";
+        m_output << m_indent << gradientName << ".setSpread(QGradient"
+            << language::qualifier << gradient->attributeSpread()
+            << ')' << language::eol;
 
         if (gradient->hasAttributeCoordinateMode()) {
-            m_output << m_indent << gradientName << ".setCoordinateMode(QGradient::"
-                << gradient->attributeCoordinateMode() << ");\n";
+            m_output << m_indent << gradientName << ".setCoordinateMode(QGradient"
+                << language::qualifier << gradient->attributeCoordinateMode()
+                << ')' << language::eol;
         }
 
        const auto &stops = gradient->elementGradientStop();
@@ -1874,23 +1968,26 @@ void WriteInitialization::writeBrush(const DomBrush *brush, const QString &brush
             const DomColor *color = stop->elementColor();
             m_output << m_indent << gradientName << ".setColorAt("
                 << stop->attributePosition() << ", "
-                << domColor2QString(color) << ");\n";
+                << domColor2QString(color) << ')' << language::eol;
         }
-        m_output << m_indent << "QBrush " << brushName << '('
-            << gradientName << ");\n";
+        m_output << m_indent
+            << language::stackVariableWithInitParameters("QBrush", brushName)
+            << gradientName << ')' << language::eol;
     } else if (style == QLatin1String("TexturePattern")) {
         const DomProperty *property = brush->elementTexture();
         const QString iconValue = iconCall(property);
 
-        m_output << m_indent << "QBrush " << brushName << " = QBrush("
-            << iconValue << ");\n";
+        m_output << m_indent
+            << language::stackVariableWithInitParameters("QBrush", brushName)
+            << iconValue << ')' << language::eol;
     } else {
         const DomColor *color = brush->elementColor();
-        m_output << m_indent << "QBrush " << brushName << '('
-            << domColor2QString(color) << ");\n";
+        m_output << m_indent
+            << language::stackVariableWithInitParameters("QBrush", brushName)
+            << domColor2QString(color) << ')' << language::eol;
 
         m_output << m_indent << brushName << ".setStyle("
-            << "Qt::" << style << ");\n";
+            << language::qtQualifier << style << ')' << language::eol;
     }
 }
 
@@ -1968,15 +2065,14 @@ QString WriteInitialization::pixCall(const QString &t, const QString &text) cons
         return type;
     }
 
+    QTextStream str(&type);
+    str << '(';
     QString pixFunc = m_uic->pixmapFunction();
     if (pixFunc.isEmpty())
-        pixFunc = QLatin1String("QString::fromUtf8");
-
-    type += QLatin1Char('(')
-          + pixFunc
-          + QLatin1Char('(')
-          + fixString(text, m_dindent)
-          + QLatin1String("))");
+        str << language::qstring(text, m_dindent);
+    else
+        str << pixFunc << '(' << language::charliteral(text, m_dindent) << ')';
+    str << ')';
     return type;
 }
 
@@ -1999,13 +2095,15 @@ void WriteInitialization::initializeComboBox(DomWidget *w)
         if (icon)
             iconValue = iconCall(icon);
 
-        m_output << m_indent << varName << "->addItem(";
+        m_output << m_indent << varName << language::derefPointer << "addItem(";
         if (icon)
             m_output << iconValue << ", ";
 
         if (needsTranslation(text->elementString())) {
             m_output << "QString());\n";
-            m_refreshOut << m_indent << varName << "->setItemText(" << i << ", " << trCall(text->elementString()) << ");\n";
+            m_refreshOut << m_indent << varName << language::derefPointer
+                << "setItemText(" << i << ", " << trCall(text->elementString())
+                << ')' << language::eol;
         } else {
             m_output << noTrCall(text->elementString()) << ");\n";
         }
@@ -2020,9 +2118,13 @@ QString WriteInitialization::disableSorting(DomWidget *w, const QString &varName
     if (!w->elementItem().isEmpty()) {
         tempName = m_driver->unique(QLatin1String("__sortingEnabled"));
         m_refreshOut << "\n";
-        m_refreshOut << m_indent << "const bool " << tempName
-            << " = " << varName << "->isSortingEnabled();\n";
-        m_refreshOut << m_indent << varName << "->setSortingEnabled(false);\n";
+        m_refreshOut << m_indent;
+        if (language::language() == Language::Cpp)
+            m_refreshOut << "const bool ";
+        m_refreshOut << tempName << " = " << varName << language::derefPointer
+            << "isSortingEnabled()" << language::eol
+            << m_indent << varName << language::derefPointer
+            << "setSortingEnabled(" << language::boolValue(false) << ')' << language::eol;
     }
     return tempName;
 }
@@ -2030,7 +2132,8 @@ QString WriteInitialization::disableSorting(DomWidget *w, const QString &varName
 void WriteInitialization::enableSorting(DomWidget *w, const QString &varName, const QString &tempName)
 {
     if (!w->elementItem().isEmpty()) {
-        m_refreshOut << m_indent << varName << "->setSortingEnabled(" << tempName << ");\n\n";
+        m_refreshOut << m_indent << varName << language::derefPointer
+            << "setSortingEnabled(" << tempName << ')' << language::eol << '\n';
     }
 }
 
@@ -2055,7 +2158,7 @@ void WriteInitialization::addInitializer(Item *item,
     if (!value.isEmpty()) {
         QString setter;
         QTextStream str(&setter);
-        str << "->set" << name.at(0).toUpper() << name.midRef(1) << '(';
+        str << language::derefPointer << "set" << name.at(0).toUpper() << name.midRef(1) << '(';
         if (column >= 0)
             str << column << ", ";
         str << value << ");";
@@ -2105,10 +2208,11 @@ void WriteInitialization::addQtFlagsInitializer(Item *item,
         const DomPropertyMap &properties, const QString &name, int column) const
 {
     if (const DomProperty *p = properties.value(name)) {
+        const QString orOperator = QLatin1Char('|') + language::qtQualifier;
         QString v = p->elementSet();
         if (!v.isEmpty()) {
-            v.replace(QLatin1Char('|'), QLatin1String("|Qt::"));
-            addInitializer(item, name, column, QLatin1String("Qt::") + v);
+            v.replace(QLatin1Char('|'), orOperator);
+            addInitializer(item, name, column, language::qtQualifier + v);
         }
     }
 }
@@ -2123,7 +2227,7 @@ void WriteInitialization::addQtEnumInitializer(Item *item,
     if (const DomProperty *p = properties.value(name)) {
         QString v = p->elementEnum();
         if (!v.isEmpty())
-            addInitializer(item, name, column, QLatin1String("Qt::") + v);
+            addInitializer(item, name, column, language::qtQualifier + v);
     }
 }
 
@@ -2172,7 +2276,9 @@ void WriteInitialization::initializeListWidget(DomWidget *w)
         addCommonInitializers(&item, properties);
 
         item.writeSetupUi(varName);
-        item.writeRetranslateUi(varName + QLatin1String("->item(") + QString::number(i) + QLatin1Char(')'));
+        QString parentPath;
+        QTextStream(&parentPath) << varName << language::derefPointer << "item(" << i << ')';
+        item.writeRetranslateUi(parentPath);
     }
     enableSorting(w, varName, tempName);
 }
@@ -2193,14 +2299,19 @@ void WriteInitialization::initializeTreeWidget(DomWidget *w)
 
         if (const DomProperty *p = properties.value(QLatin1String("text"))) {
             DomString *str = p->elementString();
-            if (str && str->text().isEmpty())
-                m_output << m_indent << varName << "->headerItem()->setText(" << i << ", QString());\n";
+            if (str && str->text().isEmpty()) {
+                m_output << m_indent << varName << language::derefPointer
+                    << "headerItem()" << language::derefPointer << "setText("
+                    << i << ", QString())" << language::eol;
+            }
         }
     }
     const QString itemName = item.writeSetupUi(QString(), Item::DontConstruct);
-    item.writeRetranslateUi(varName + QLatin1String("->headerItem()"));
-    if (!itemName.isNull())
-        m_output << m_indent << varName << "->setHeaderItem(" << itemName << ");\n";
+    item.writeRetranslateUi(varName + language::derefPointer + QLatin1String("headerItem()"));
+    if (!itemName.isNull()) {
+        m_output << m_indent << varName << language::derefPointer
+            << "setHeaderItem(" << itemName << ')' << language::eol;
+    }
 
     if (w->elementItem().empty())
         return;
@@ -2211,7 +2322,9 @@ void WriteInitialization::initializeTreeWidget(DomWidget *w)
     for (int i = 0; i < items.count(); i++) {
         Item *itm = items[i];
         itm->writeSetupUi(varName);
-        itm->writeRetranslateUi(varName + QLatin1String("->topLevelItem(") + QString::number(i) + QLatin1Char(')'));
+        QString parentPath;
+        QTextStream(&parentPath) << varName << language::derefPointer << "topLevelItem(" << i << ')';
+        itm->writeRetranslateUi(parentPath);
         delete itm;
     }
 
@@ -2273,8 +2386,10 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
     const auto &columns = w->elementColumn();
 
     if (!columns.empty()) {
-        m_output << m_indent << "if (" << varName << "->columnCount() < " << columns.size() << ")\n"
-            << m_dindent << varName << "->setColumnCount(" << columns.size() << ");\n";
+        m_output << m_indent << "if (" << varName << language::derefPointer << "columnCount() < "
+            << columns.size() << ")\n"
+            << m_dindent << varName << language::derefPointer << "setColumnCount("
+            << columns.size() << ')' << language::eol;
     }
 
     for (int i = 0; i < columns.size(); ++i) {
@@ -2286,8 +2401,12 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
             addCommonInitializers(&item, properties);
 
             QString itemName = item.writeSetupUi(QString(), Item::ConstructItemAndVariable);
-            item.writeRetranslateUi(varName + QLatin1String("->horizontalHeaderItem(") + QString::number(i) + QLatin1Char(')'));
-            m_output << m_indent << varName << "->setHorizontalHeaderItem(" << i << ", " << itemName << ");\n";
+            QString parentPath;
+            QTextStream(&parentPath) << varName << language::derefPointer
+                << "horizontalHeaderItem(" << i << ')';
+            item.writeRetranslateUi(parentPath);
+            m_output << m_indent << varName << language::derefPointer << "setHorizontalHeaderItem("
+                << i << ", " << itemName << ')' << language::eol;
         }
     }
 
@@ -2295,8 +2414,9 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
     const auto &rows = w->elementRow();
 
     if (!rows.isEmpty()) {
-        m_output << m_indent << "if (" << varName << "->rowCount() < " << rows.size() << ")\n"
-            << m_dindent << varName << "->setRowCount(" << rows.size() << ");\n";
+        m_output << m_indent << "if (" << varName << language::derefPointer << "rowCount() < " << rows.size() << ")\n"
+            << m_dindent << varName << language::derefPointer << "setRowCount("
+            << rows.size() << ')' << language::eol;
     }
 
     for (int i = 0; i < rows.size(); ++i) {
@@ -2308,8 +2428,11 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
             addCommonInitializers(&item, properties);
 
             QString itemName = item.writeSetupUi(QString(), Item::ConstructItemAndVariable);
-            item.writeRetranslateUi(varName + QLatin1String("->verticalHeaderItem(") + QString::number(i) + QLatin1Char(')'));
-            m_output << m_indent << varName << "->setVerticalHeaderItem(" << i << ", " << itemName << ");\n";
+            QString parentPath;
+            QTextStream(&parentPath) << varName << language::derefPointer << "verticalHeaderItem(" << i << ')';
+            item.writeRetranslateUi(parentPath);
+            m_output << m_indent << varName << language::derefPointer << "setVerticalHeaderItem("
+                << i << ", " << itemName << ')' << language::eol;
         }
     }
 
@@ -2329,8 +2452,12 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
             addCommonInitializers(&item, properties);
 
             QString itemName = item.writeSetupUi(QString(), Item::ConstructItemAndVariable);
-            item.writeRetranslateUi(varName + QLatin1String("->item(") + QString::number(r) + QLatin1String(", ") + QString::number(c) + QLatin1Char(')'));
-            m_output << m_indent << varName << "->setItem(" << r << ", " << c << ", " << itemName << ");\n";
+            QString parentPath;
+            QTextStream(&parentPath) << varName << language::derefPointer << "item(" << r
+                << ", " << c << ')';
+            item.writeRetranslateUi(parentPath);
+            m_output << m_indent << varName << language::derefPointer << "setItem("
+                << r << ", " << c << ", " << itemName << ')' << language::eol;
         }
     }
     enableSorting(w, varName, tempName);
@@ -2338,32 +2465,37 @@ void WriteInitialization::initializeTableWidget(DomWidget *w)
 
 QString WriteInitialization::trCall(const QString &str, const QString &commentHint, const QString &id) const
 {
-    if (str.isEmpty())
-        return QLatin1String("QString()");
+    if (str.isEmpty()) {
+        return language::language() == Language::Cpp
+            ? QLatin1String("QString()") : QLatin1String("\"\"");
+    }
 
     QString result;
-    const QString comment = commentHint.isEmpty() ? QString(QLatin1String("nullptr")) : fixString(commentHint, m_dindent);
+    QTextStream ts(&result);
 
     const bool idBasedTranslations = m_driver->useIdBasedTranslations();
     if (m_option.translateFunction.isEmpty()) {
         if (idBasedTranslations || m_option.idBased) {
-            result += QLatin1String("qtTrId(");
+            ts << "qtTrId(";
         } else {
-            result += QLatin1String("QCoreApplication::translate(\"")
-                    + m_generatedClass
-                    + QLatin1String("\", ");
+            ts << "QCoreApplication" << language::qualifier << "translate("
+                << '"' << m_generatedClass << "\", ";
         }
     } else {
-        result += m_option.translateFunction + QLatin1Char('(');
+        ts << m_option.translateFunction << '(';
     }
 
-    result += fixString(idBasedTranslations ? id : str, m_dindent);
+    ts << language::charliteral(idBasedTranslations ? id : str, m_dindent);
 
     if (!idBasedTranslations && !m_option.idBased) {
-        result += QLatin1String(", ") + comment;
+        ts << ", ";
+        if (commentHint.isEmpty())
+            ts << language::nullPtr;
+        else
+            ts << language::charliteral(commentHint, m_dindent);
     }
 
-    result += QLatin1Char(')');
+    ts << ')';
     return result;
 }
 
@@ -2374,7 +2506,8 @@ void WriteInitialization::initializeMenu(DomWidget *w, const QString &/*parentWi
 
     const DomAction *action = m_driver->actionByName(menuAction);
     if (action && action->hasAttributeMenu()) {
-        m_output << m_indent << menuAction << " = " << menuName << "->menuAction();\n";
+        m_output << m_indent << menuAction << " = " << menuName
+            << language::derefPointer << "menuAction()" << language::eol;
     }
 }
 
@@ -2398,9 +2531,9 @@ QString WriteInitialization::noTrCall(DomString *str, const QString &defaultStri
         return QString();
     if (str)
         value = str->text();
-    QString ret = QLatin1String("QString::fromUtf8(");
-    ret += fixString(value, m_dindent);
-    ret += QLatin1Char(')');
+    QString ret;
+    QTextStream ts(&ret);
+    ts << language::qstring(value, m_dindent);
     return ret;
 }
 
@@ -2428,36 +2561,42 @@ QTextStream &WriteInitialization::autoTrOutput(const DomString *str, const QStri
     return m_output;
 }
 
-QString WriteInitialization::findDeclaration(const QString &name)
+WriteInitialization::Declaration WriteInitialization::findDeclaration(const QString &name)
 {
-    const QString normalized = Driver::normalizedName(name);
-
-    if (const DomWidget *widget = m_driver->widgetByName(normalized))
-        return m_driver->findOrInsertWidget(widget);
-    if (const DomAction *action = m_driver->actionByName(normalized))
-        return m_driver->findOrInsertAction(action);
-    if (const DomButtonGroup *group = m_driver->findButtonGroup(normalized))
-        return m_driver->findOrInsertButtonGroup(group);
-    return QString();
+    if (const DomWidget *widget = m_driver->widgetByName(name))
+        return {m_driver->findOrInsertWidget(widget), widget->attributeClass()};
+    if (const DomAction *action = m_driver->actionByName(name))
+        return {m_driver->findOrInsertAction(action), QStringLiteral("QAction")};
+    if (const DomButtonGroup *group = m_driver->findButtonGroup(name))
+         return {m_driver->findOrInsertButtonGroup(group), QStringLiteral("QButtonGroup")};
+    return {};
 }
 
 void WriteInitialization::acceptConnection(DomConnection *connection)
 {
-    const QString sender = findDeclaration(connection->elementSender());
-    const QString receiver = findDeclaration(connection->elementReceiver());
+    const QString senderName = connection->elementSender();
+    const QString receiverName = connection->elementReceiver();
+
+    const auto senderDecl = findDeclaration(senderName);
+    const auto receiverDecl = findDeclaration(receiverName);
 
-    if (sender.isEmpty() || receiver.isEmpty())
+    if (senderDecl.name.isEmpty() || receiverDecl.name.isEmpty()) {
+        QString message;
+        QTextStream(&message) << m_option.messagePrefix()
+            << ": Warning: Invalid signal/slot connection: \""
+            << senderName << "\" -> \"" << receiverName << "\".";
+        fprintf(stderr, "%s\n", qPrintable(message));
         return;
+    }
+
+    language::SignalSlot theSignal{senderDecl.name, connection->elementSignal(),
+                                   senderDecl.className};
+    language::SignalSlot theSlot{receiverDecl.name, connection->elementSlot(),
+                                 receiverDecl.className};
 
-    m_output << m_indent << "QObject::connect("
-        << sender
-        << ", "
-        << "SIGNAL("<<connection->elementSignal()<<')'
-        << ", "
-        << receiver
-        << ", "
-        << "SLOT("<<connection->elementSlot()<<')'
-        << ");\n";
+    m_output << m_indent;
+    language::formatConnection(m_output, theSignal, theSlot);
+    m_output << ";\n";
 }
 
 static void generateMultiDirectiveBegin(QTextStream &outputStream, const QSet<QString> &directives)
@@ -2470,14 +2609,14 @@ static void generateMultiDirectiveBegin(QTextStream &outputStream, const QSet<QS
         return;
     }
 
-    auto list = directives.toList();
+    auto list = directives.values();
     // sort (always generate in the same order):
     std::sort(list.begin(), list.end());
 
     outputStream << "#if " << language::qtConfig(list.constFirst());
     for (int i = 1, size = list.size(); i < size; ++i)
         outputStream << " || " << language::qtConfig(list.at(i));
-    outputStream << endl;
+    outputStream << Qt::endl;
 }
 
 static void generateMultiDirectiveEnd(QTextStream &outputStream, const QSet<QString> &directives)
@@ -2485,7 +2624,7 @@ static void generateMultiDirectiveEnd(QTextStream &outputStream, const QSet<QStr
     if (directives.isEmpty())
         return;
 
-    outputStream << "#endif" << endl;
+    outputStream << "#endif" << Qt::endl;
 }
 
 WriteInitialization::Item::Item(const QString &itemClassName, const QString &indent, QTextStream &setupUiStream, QTextStream &retranslateUiStream, Driver *driver)
@@ -2513,7 +2652,8 @@ QString WriteInitialization::Item::writeSetupUi(const QString &parent, Item::Emp
     bool generateMultiDirective = false;
     if (emptyItemPolicy == Item::ConstructItemOnly && m_children.isEmpty()) {
         if (m_setupUiData.policy == ItemData::DontGenerate) {
-            m_setupUiStream << m_indent << "new " << m_itemClassName << '(' << parent << ");\n";
+            m_setupUiStream << m_indent << language::operatorNew << m_itemClassName
+                << '(' << parent << ')' << language::eol;
             return QString();
         }
         if (m_setupUiData.policy == ItemData::GenerateWithMultiDirective)
@@ -2524,11 +2664,17 @@ QString WriteInitialization::Item::writeSetupUi(const QString &parent, Item::Emp
         generateMultiDirectiveBegin(m_setupUiStream, m_setupUiData.directives);
 
     const QString uniqueName = m_driver->unique(QLatin1String("__") + m_itemClassName.toLower());
-    m_setupUiStream << m_indent << m_itemClassName << " *" << uniqueName << " = new " << m_itemClassName << '(' << parent << ");\n";
+    m_setupUiStream << m_indent;
+    if (language::language() == Language::Cpp)
+        m_setupUiStream << m_itemClassName << " *";
+    m_setupUiStream << uniqueName
+        << " = " << language::operatorNew << m_itemClassName << '(' << parent
+        << ')' << language::eol;
 
     if (generateMultiDirective) {
         m_setupUiStream << "#else\n";
-        m_setupUiStream << m_indent << "new " << m_itemClassName << '(' << parent << ");\n";
+        m_setupUiStream << m_indent << language::operatorNew << m_itemClassName
+            << '(' << parent << ')' << language::eol;
         generateMultiDirectiveEnd(m_setupUiStream, m_setupUiData.directives);
     }
 
@@ -2536,7 +2682,7 @@ QString WriteInitialization::Item::writeSetupUi(const QString &parent, Item::Emp
     while (it != m_setupUiData.setters.constEnd()) {
         if (!it.key().isEmpty())
             m_setupUiStream << language::openQtConfig(it.key());
-        m_setupUiStream << m_indent << uniqueName << it.value() << endl;
+        m_setupUiStream << m_indent << uniqueName << it.value() << Qt::endl;
         if (!it.key().isEmpty())
             m_setupUiStream << language::closeQtConfig(it.key());
         ++it;
@@ -2555,7 +2701,10 @@ void WriteInitialization::Item::writeRetranslateUi(const QString &parentPath)
         generateMultiDirectiveBegin(m_retranslateUiStream, m_retranslateUiData.directives);
 
     const QString uniqueName = m_driver->unique(QLatin1String("___") + m_itemClassName.toLower());
-    m_retranslateUiStream << m_indent << m_itemClassName << " *" << uniqueName << " = " << parentPath << ";\n";
+    m_retranslateUiStream << m_indent;
+    if (language::language() == Language::Cpp)
+        m_retranslateUiStream << m_itemClassName << " *";
+    m_retranslateUiStream << uniqueName << " = " << parentPath << language::eol;
 
     if (m_retranslateUiData.policy == ItemData::GenerateWithMultiDirective)
         generateMultiDirectiveEnd(m_retranslateUiStream, m_retranslateUiData.directives);
@@ -2571,14 +2720,17 @@ void WriteInitialization::Item::writeRetranslateUi(const QString &parentPath)
                 m_retranslateUiStream << language::openQtConfig(newDirective);
             oldDirective = newDirective;
         }
-        m_retranslateUiStream << m_indent << uniqueName << it.value() << endl;
+        m_retranslateUiStream << m_indent << uniqueName << it.value() << Qt::endl;
         ++it;
     }
     if (!oldDirective.isEmpty())
         m_retranslateUiStream << language::closeQtConfig(oldDirective);
 
-    for (int i = 0; i < m_children.size(); i++)
-        m_children[i]->writeRetranslateUi(uniqueName + QLatin1String("->child(") + QString::number(i) + QLatin1Char(')'));
+    for (int i = 0; i < m_children.size(); i++) {
+        QString method;
+        QTextStream(&method) << uniqueName << language::derefPointer << "child(" << i << ')';
+        m_children[i]->writeRetranslateUi(method);
+    }
 }
 
 void WriteInitialization::Item::addSetter(const QString &setter, const QString &directive, bool translatable)
diff --git a/src/tools/uic/cpp/cppwriteinitialization.h b/src/tools/uic/cpp/cppwriteinitialization.h
index c408c44b40..b90ffe00a7 100644
--- a/src/tools/uic/cpp/cppwriteinitialization.h
+++ b/src/tools/uic/cpp/cppwriteinitialization.h
@@ -220,7 +220,13 @@ private:
     QString disableSorting(DomWidget *w, const QString &varName);
     void enableSorting(DomWidget *w, const QString &varName, const QString &tempName);
 
-    QString findDeclaration(const QString &name);
+    struct Declaration
+    {
+        QString name;
+        QString className;
+    };
+
+    Declaration findDeclaration(const QString &name);
 
 private:
     QString writeFontProperties(const DomFont *f);
diff --git a/src/tools/uic/driver.cpp b/src/tools/uic/driver.cpp
index 03fa1e17cf..a0812932ce 100644
--- a/src/tools/uic/driver.cpp
+++ b/src/tools/uic/driver.cpp
@@ -30,6 +30,8 @@
 #include "uic.h"
 #include "ui4.h"
 
+#include <language.h>
+
 #include <qfileinfo.h>
 #include <qdebug.h>
 
@@ -51,18 +53,33 @@ static inline QString actionClass()      { return QStringLiteral("QAction"); }
 static inline QString buttonGroupClass() { return QStringLiteral("QButtonGroup"); }
 
 template <class DomClass>
+const DomClass *Driver::findByAttributeName(const DomObjectHash<DomClass> &domHash,
+                                            const QString &name) const
+{
+    for (auto it = domHash.cbegin(), end = domHash.cend(); it != end; ++it) {
+        if (it.key()->attributeName() == name)
+            return it.key();
+   }
+    return nullptr;
+}
+
+template <class DomClass>
 QString Driver::findOrInsert(DomObjectHash<DomClass> *domHash, const DomClass *dom,
-                             const QString &className)
+                             const QString &className, bool isMember)
 {
     auto it = domHash->find(dom);
-    if (it == domHash->end())
-        it = domHash->insert(dom, this->unique(dom->attributeName(), className));
+    if (it == domHash->end()) {
+        const QString name = this->unique(dom->attributeName(), className);
+        it = domHash->insert(dom, isMember ? language::self + name : name);
+    }
     return it.value();
 }
 
 QString Driver::findOrInsertWidget(const DomWidget *ui_widget)
 {
-    return findOrInsert(&m_widgets, ui_widget, ui_widget->attributeClass());
+    // Top level is passed into setupUI(), everything else is a member variable
+    const bool isMember = !m_widgets.isEmpty();
+    return findOrInsert(&m_widgets, ui_widget, ui_widget->attributeClass(), isMember);
 }
 
 QString Driver::findOrInsertSpacer(const DomSpacer *ui_spacer)
@@ -111,11 +128,7 @@ QString Driver::findOrInsertButtonGroup(const DomButtonGroup *ui_group)
 // Find a group by its non-uniqified name
 const DomButtonGroup *Driver::findButtonGroup(const QString &attributeName) const
 {
-    for (auto it = m_buttonGroups.cbegin(), end = m_buttonGroups.cend(); it != end; ++it) {
-        if (it.key()->attributeName() == attributeName)
-            return it.key();
-    }
-    return nullptr;
+    return findByAttributeName(m_buttonGroups, attributeName);
 }
 
 
@@ -288,17 +301,17 @@ bool Driver::uic(const QString &fileName, QTextStream *out)
 
 const DomWidget *Driver::widgetByName(const QString &name) const
 {
-    return m_widgets.key(name);
+    return findByAttributeName(m_widgets, name);
 }
 
 const DomActionGroup *Driver::actionGroupByName(const QString &name) const
 {
-    return m_actionGroups.key(name);
+    return findByAttributeName(m_actionGroups, name);
 }
 
 const DomAction *Driver::actionByName(const QString &name) const
 {
-    return m_actions.key(name);
+    return findByAttributeName(m_actions, name);
 }
 
 QT_END_NAMESPACE
diff --git a/src/tools/uic/driver.h b/src/tools/uic/driver.h
index 1303d0bf8a..36336007b2 100644
--- a/src/tools/uic/driver.h
+++ b/src/tools/uic/driver.h
@@ -56,8 +56,8 @@ public:
 
     // tools
     bool printDependencies(const QString &fileName);
-    bool uic(const QString &fileName, QTextStream *output = 0);
-    bool uic(const QString &fileName, DomUI *ui, QTextStream *output = 0);
+    bool uic(const QString &fileName, QTextStream *output = nullptr);
+    bool uic(const QString &fileName, DomUI *ui, QTextStream *output = nullptr);
 
     // configuration
     inline QTextStream &output() const { return *m_output; }
@@ -95,7 +95,11 @@ private:
     template <class DomClass> using DomObjectHash = QHash<const DomClass *, QString>;
 
     template <class DomClass>
-    QString findOrInsert(DomObjectHash<DomClass> *domHash, const DomClass *dom, const QString &className);
+    const DomClass *findByAttributeName(const DomObjectHash<DomClass> &domHash,
+                                        const QString &name) const;
+    template <class DomClass>
+    QString findOrInsert(DomObjectHash<DomClass> *domHash, const DomClass *dom, const QString &className,
+                         bool isMember = true);
 
     Option m_option;
     QTextStream m_stdout;
diff --git a/src/tools/uic/main.cpp b/src/tools/uic/main.cpp
index 0516b854ff..166fe78ff7 100644
--- a/src/tools/uic/main.cpp
+++ b/src/tools/uic/main.cpp
@@ -29,6 +29,7 @@
 #include "uic.h"
 #include "option.h"
 #include "driver.h"
+#include <language.h>
 
 #include <qfile.h>
 #include <qdir.h>
@@ -96,7 +97,7 @@ int runUic(int argc, char *argv[])
 
     QCommandLineOption generatorOption(QStringList() << QStringLiteral("g") << QStringLiteral("generator"));
     generatorOption.setDescription(QStringLiteral("Select generator."));
-    generatorOption.setValueName(QStringLiteral("java|cpp"));
+    generatorOption.setValueName(QStringLiteral("python|cpp"));
     parser.addOption(generatorOption);
 
     QCommandLineOption idBasedOption(QStringLiteral("idbased"));
@@ -116,6 +117,13 @@ int runUic(int argc, char *argv[])
     driver.option().translateFunction = parser.value(translateOption);
     driver.option().includeFile = parser.value(includeOption);
 
+    Language language = Language::Cpp;
+    if (parser.isSet(generatorOption)) {
+        if (parser.value(generatorOption).compare(QLatin1String("python")) == 0)
+            language = Language::Python;
+    }
+    language::setLanguage(language);
+
     if (parser.isSet(noStringLiteralOption))
         fprintf(stderr, "The -s, --no-stringliteral option is deprecated and it won't take any effect.\n");
 
diff --git a/src/tools/uic/python/python.pri b/src/tools/uic/python/python.pri
new file mode 100644
index 0000000000..4dd31160a1
--- /dev/null
+++ b/src/tools/uic/python/python.pri
@@ -0,0 +1,8 @@
+INCLUDEPATH += $$PWD
+
+# Input
+HEADERS += $$PWD/pythonwritedeclaration.h \
+           $$PWD/pythonwriteimports.h
+
+SOURCES += $$PWD/pythonwritedeclaration.cpp \
+           $$PWD/pythonwriteimports.cpp
diff --git a/src/tools/uic/python/pythonwritedeclaration.cpp b/src/tools/uic/python/pythonwritedeclaration.cpp
new file mode 100644
index 0000000000..5122b18e23
--- /dev/null
+++ b/src/tools/uic/python/pythonwritedeclaration.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "pythonwritedeclaration.h"
+#include <cppwriteinitialization.h>
+#include <language.h>
+#include <driver.h>
+#include <ui4.h>
+#include <uic.h>
+
+#include <QtCore/qtextstream.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Python {
+
+WriteDeclaration::WriteDeclaration(Uic *uic)  :
+    m_uic(uic),
+    m_driver(uic->driver()),
+    m_output(uic->output()),
+    m_option(uic->option())
+{
+}
+
+void WriteDeclaration::acceptUI(DomUI *node)
+{
+    // remove any left-over C++ namespaces
+    const QString qualifiedClassName = QLatin1String("Ui_") + node->elementClass()
+        + m_option.postfix;
+    m_output << "class " << language::fixClassName(qualifiedClassName) << "(object):\n";
+
+    TreeWalker::acceptWidget(node->elementWidget());
+    if (const DomButtonGroups *domButtonGroups = node->elementButtonGroups())
+        acceptButtonGroups(domButtonGroups);
+    CPP::WriteInitialization(m_uic).acceptUI(node);
+}
+
+// Register button groups to prevent the on-the-fly creation legacy
+// feature from triggering
+void WriteDeclaration::acceptButtonGroup(const DomButtonGroup *buttonGroup)
+{
+    m_driver->findOrInsertButtonGroup(buttonGroup);
+}
+
+} // namespace Python
+
+QT_END_NAMESPACE
diff --git a/tests/auto/testlib/selftests/alive/tst_alive.cpp b/src/tools/uic/python/pythonwritedeclaration.h
index eeb77b18c0..a8d50b6fbf 100644
--- a/tests/auto/testlib/selftests/alive/tst_alive.cpp
+++ b/src/tools/uic/python/pythonwritedeclaration.h
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the test suite of the Qt Toolkit.
+** This file is part of the tools applications of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:GPL-EXCEPT$
 ** Commercial License Usage
@@ -26,59 +26,37 @@
 **
 ****************************************************************************/
 
+#ifndef PYTHONWRITEDECLARATION_H
+#define PYTHONWRITEDECLARATION_H
 
-#include <QtTest/QtTest>
-#include <QWidget>
+#include <treewalker.h>
 
-#include "qtestalive.cpp"
+QT_BEGIN_NAMESPACE
 
-class tst_Alive: public QObject
-{
-    Q_OBJECT
+class QTextStream;
+class Driver;
+class Uic;
 
-private slots:
-    void alive();
-    void addMouseDClick() const;
-};
+struct Option;
 
-void tst_Alive::alive()
-{
-    QTestAlive a;
-    a.start();
+namespace Python {
 
-    sleep(5);
-    QCoreApplication::processEvents();
-    qDebug("CUT");
-    sleep(5);
-}
-
-void tst_Alive::addMouseDClick() const
+struct WriteDeclaration : public TreeWalker
 {
-    class DClickListener : public QWidget
-    {
-    public:
-        DClickListener() : isTested(false)
-        {
-        }
+    WriteDeclaration(Uic *uic);
 
-        bool isTested;
-    protected:
-        virtual void mouseDoubleClickEvent(QMouseEvent * event)
-        {
-            isTested = true;
-            QCOMPARE(event->type(), QEvent::MouseButtonDblClick);
-        }
-    };
+    void acceptUI(DomUI *node) override;
+    void acceptButtonGroup(const DomButtonGroup *buttonGroup) override;
 
-    DClickListener listener;
+private:
+    Uic *m_uic;
+    Driver *m_driver;
+    QTextStream &m_output;
+    const Option &m_option;
+};
 
-    QTestEventList list;
-    list.addMouseDClick(Qt::LeftButton);
+} // namespace Python
 
-    list.simulate(&listener);
-    /* Check that we have been called at all. */
-    QVERIFY(listener.isTested);
-}
+QT_END_NAMESPACE
 
-QTEST_MAIN(tst_Alive)
-#include "tst_alive.moc"
+#endif // PYTHONWRITEDECLARATION_H
diff --git a/src/tools/uic/python/pythonwriteimports.cpp b/src/tools/uic/python/pythonwriteimports.cpp
new file mode 100644
index 0000000000..303615f77b
--- /dev/null
+++ b/src/tools/uic/python/pythonwriteimports.cpp
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "pythonwriteimports.h"
+
+#include <customwidgetsinfo.h>
+#include <uic.h>
+
+#include <ui4.h>
+
+#include <QtCore/qtextstream.h>
+
+QT_BEGIN_NAMESPACE
+
+static const char *standardImports =
+R"I(from PySide2.QtCore import (QCoreApplication, QMetaObject, QObject, QPoint,
+    QRect, QSize, QUrl, Qt)
+from PySide2.QtGui import (QBrush, QColor, QConicalGradient, QFont,
+    QFontDatabase, QIcon, QLinearGradient, QPalette, QPainter, QPixmap,
+    QRadialGradient)
+from PySide2.QtWidgets import *
+)I";
+
+namespace Python {
+
+WriteImports::WriteImports(Uic *uic) : m_uic(uic)
+{
+}
+
+void WriteImports::acceptUI(DomUI *node)
+{
+    auto &output = m_uic->output();
+    output << standardImports << '\n';
+    if (auto customWidgets = node->elementCustomWidgets()) {
+        TreeWalker::acceptCustomWidgets(customWidgets);
+        output << '\n';
+    }
+}
+
+QString WriteImports::qtModuleOf(const DomCustomWidget *node) const
+{
+    if (m_uic->customWidgetsInfo()->extends(node->elementClass(), QLatin1String("QAxWidget")))
+        return QStringLiteral("QtAxContainer");
+    if (const auto headerElement = node->elementHeader()) {
+        const auto &header = headerElement->text();
+        if (header.startsWith(QLatin1String("Qt"))) {
+            const int slash = header.indexOf(QLatin1Char('/'));
+            if (slash != -1)
+                return header.left(slash);
+        }
+    }
+    return QString();
+}
+
+void WriteImports::acceptCustomWidget(DomCustomWidget *node)
+{
+    const auto &className = node->elementClass();
+    if (className.contains(QLatin1String("::")))
+        return; // Exclude namespaced names (just to make tests pass).
+    const QString &qtModule = qtModuleOf(node);
+    auto &output = m_uic->output();
+    if (!qtModule.isEmpty())
+        output << "from PySide2." << qtModule << ' ';
+    output << "import " << className << '\n';
+}
+
+} // namespace Python
+
+QT_END_NAMESPACE
diff --git a/src/tools/uic/python/pythonwriteimports.h b/src/tools/uic/python/pythonwriteimports.h
new file mode 100644
index 0000000000..427cbb48b1
--- /dev/null
+++ b/src/tools/uic/python/pythonwriteimports.h
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PYTHONWRITEIMPORTS_H
+#define PYTHONWRITEIMPORTS_H
+
+#include <treewalker.h>
+
+QT_BEGIN_NAMESPACE
+
+class Uic;
+
+namespace Python {
+
+struct WriteImports : public TreeWalker
+{
+public:
+    explicit WriteImports(Uic *uic);
+
+    void acceptUI(DomUI *node) override;
+    void acceptCustomWidget(DomCustomWidget *node) override;
+
+private:
+    QString qtModuleOf(const DomCustomWidget *node) const;
+
+    Uic *const m_uic;
+};
+
+} // namespace Python
+
+QT_END_NAMESPACE
+
+#endif // PYTHONWRITEIMPORTS_H
diff --git a/src/tools/uic/shared/language.cpp b/src/tools/uic/shared/language.cpp
index 730e1562bc..235a8ed2fc 100644
--- a/src/tools/uic/shared/language.cpp
+++ b/src/tools/uic/shared/language.cpp
@@ -32,6 +32,50 @@
 
 namespace language {
 
+static Encoding encoding = Encoding::Utf8;
+static Language _language = Language::Cpp;
+
+Language language() { return _language; }
+
+void setLanguage(Language l)
+{
+    _language = l;
+    switch (_language) {
+    case Language::Cpp:
+        derefPointer = QLatin1String("->");
+        nullPtr = QLatin1String("nullptr");
+        operatorNew = QLatin1String("new ");
+        qtQualifier = QLatin1String("Qt::");
+        qualifier = QLatin1String("::");
+        self = QLatin1String("");  // for testing: change to "this->";
+        eol = QLatin1String(";\n");
+        encoding = Encoding::Utf8;
+        break;
+    case Language::Python:
+        derefPointer = QLatin1String(".");
+        nullPtr = QLatin1String("None");
+        operatorNew = QLatin1String("");
+        qtQualifier = QLatin1String("Qt.");
+        qualifier = QLatin1String(".");
+        self = QLatin1String("self.");
+        eol = QLatin1String("\n");
+        encoding = Encoding::Unicode;
+        break;
+    }
+}
+
+QString derefPointer;
+QString nullPtr;
+QString operatorNew;
+QString qtQualifier;
+QString qualifier;
+QString self;
+QString eol;
+
+QString cppQualifier = QLatin1String("::");
+QString cppTrue = QLatin1String("true");
+QString cppFalse = QLatin1String("false");
+
 QTextStream &operator<<(QTextStream &str, const qtConfig &c)
 {
     str << "QT_CONFIG(" << c.parameter() << ')';
@@ -69,6 +113,13 @@ const char *lookupEnum(const EnumLookup(&array)[N], int value, int defaultIndex
     return defaultValue;
 }
 
+QString fixClassName(QString className)
+{
+    if (language() == Language::Python)
+        className.replace(cppQualifier, QLatin1String("_"));
+    return className;
+}
+
 const char *toolbarArea(int v)
 {
     static const EnumLookup toolBarAreas[] =
@@ -141,4 +192,235 @@ const char *paletteColorRole(int v)
     return lookupEnum(colorRoles, v);
 }
 
+// Helpers for formatting a character sequences
+
+// Format a special character like '\x0a'
+static int formatEscapedNumber(QTextStream &str, ushort value, int base, int width,
+                               char prefix = 0)
+{
+    int length = 1 + width;
+    str << '\\';
+    if (prefix) {
+        str << prefix;
+        ++length;
+    }
+    const auto oldPadChar = str.padChar();
+    const auto oldFieldWidth = str.fieldWidth();
+    const auto oldFieldAlignment = str.fieldAlignment();
+    const auto oldIntegerBase = str.integerBase();
+    str.setPadChar(QLatin1Char('0'));
+    str.setFieldWidth(width);
+    str.setFieldAlignment(QTextStream::AlignRight);
+    str.setIntegerBase(base);
+    str << value;
+    str.setIntegerBase(oldIntegerBase);
+    str.setFieldAlignment(oldFieldAlignment);
+    str.setFieldWidth(oldFieldWidth);
+    str.setPadChar(oldPadChar);
+    return length;
+}
+
+static int formatSpecialCharacter(QTextStream &str, ushort value)
+{
+    int length = 0;
+    switch (value) {
+    case '\\':
+        str << "\\\\";
+        length += 2;
+        break;
+    case '\"':
+        str << "\\\"";
+        length += 2;
+        break;
+    case '\n':
+        str << "\\n\"\n\"";
+        length += 5;
+        break;
+    default:
+        break;
+    }
+    return length;
+}
+
+// Format a sequence of characters for C++ with special characters numerically
+// escaped (non-raw string literals), wrappped at maxSegmentSize. FormattingTraits
+// are used to transform characters into (unsigned) codes, which can be used
+// for either normal escapes or Unicode code points as used in Unicode literals.
+
+enum : int { maxSegmentSize = 1024 };
+
+template <Encoding e>
+struct FormattingTraits
+{
+};
+
+template <>
+struct FormattingTraits<Encoding::Utf8>
+{
+    static ushort code(char c) { return uchar(c); }
+};
+
+template <>
+struct FormattingTraits<Encoding::Unicode>
+{
+    static ushort code(QChar c) { return c.unicode(); }
+};
+
+template <Encoding e, class Iterator>
+static void formatStringSequence(QTextStream &str, Iterator it, Iterator end,
+                                 const QString &indent,
+                                 int escapeIntegerBase, int escapeWidth,
+                                 char escapePrefix = 0)
+{
+    str << '"';
+    int length = 0;
+    while (it != end) {
+        const auto code = FormattingTraits<e>::code(*it);
+        if (code >= 0x80) {
+            length += formatEscapedNumber(str, code, escapeIntegerBase, escapeWidth, escapePrefix);
+        } else if (const int l = formatSpecialCharacter(str, code)) {
+            length += l;
+        } else if (code != '\r') {
+            str << *it;
+            ++length;
+        }
+        ++it;
+        if (it != end && length > maxSegmentSize) {
+            str << "\"\n" << indent << indent << '"';
+            length = 0;
+        }
+    }
+    str << '"';
+}
+
+void _formatString(QTextStream &str, const QString &value, const QString &indent,
+                   bool qString)
+{
+    switch (encoding) {
+    // Special characters as 3 digit octal escapes (u8"\303\234mlaut")
+    case Encoding::Utf8: {
+        if (qString && _language == Language::Cpp)
+            str << "QString::fromUtf8(";
+        const QByteArray utf8 = value.toUtf8();
+        formatStringSequence<Encoding::Utf8>(str, utf8.cbegin(), utf8.cend(), indent,
+                                             8, 3);
+        if (qString && _language == Language::Cpp)
+            str << ')';
+    }
+        break;
+    // Special characters as 4 digit hex Unicode points (u8"\u00dcmlaut")
+    case Encoding::Unicode:
+        str << 'u'; // Python Unicode literal (would be UTF-16 in C++)
+        formatStringSequence<Encoding::Unicode>(str, value.cbegin(), value.cend(), indent,
+                                                16, 4, 'u');
+        break;
+    }
+}
+
+QTextStream &operator<<(QTextStream &str, const repeat &r)
+{
+    for (int i = 0; i < r.m_count; ++i)
+        str << r.m_char;
+    return str;
+}
+
+startFunctionDefinition1::startFunctionDefinition1(const char *name, const QString &parameterType,
+                                                   const QString &parameterName,
+                                                   const QString &indent,
+                                                   const char *returnType) :
+    m_name(name), m_parameterType(parameterType), m_parameterName(parameterName),
+    m_indent(indent), m_return(returnType)
+{
+}
+
+QTextStream &operator<<(QTextStream &str, const startFunctionDefinition1 &f)
+{
+    switch (language()) {
+    case Language::Cpp:
+        str << (f.m_return ? f.m_return : "void") << ' ' << f.m_name << '('
+            << f.m_parameterType;
+        if (f.m_parameterType.cend()->isLetter())
+            str << ' ';
+        str << f.m_parameterName << ')' << '\n' << f.m_indent << "{\n";
+        break;
+    case Language::Python:
+        str << "def " << f.m_name << "(self, " << f.m_parameterName << "):\n";
+        break;
+    }
+    return str;
+}
+
+endFunctionDefinition::endFunctionDefinition(const char *name) : m_name(name)
+{
+}
+
+QTextStream &operator<<(QTextStream &str, const endFunctionDefinition &f)
+{
+    switch (language()) {
+    case Language::Cpp:
+        str << "} // " << f.m_name << "\n\n";
+        break;
+    case Language::Python:
+        str << "# " << f.m_name << "\n\n";
+        break;
+    }
+    return str;
+}
+
+void _formatStackVariable(QTextStream &str, const char *className, QStringView varName,
+                          bool withInitParameters)
+{
+    switch (language()) {
+    case Language::Cpp:
+        str << className << ' ' << varName;
+        if (withInitParameters)
+            str << '(';
+        break;
+    case Language::Python:
+        str << varName << " = " << className << '(';
+        if (!withInitParameters)
+            str << ')';
+        break;
+    }
+}
+
+void formatConnection(QTextStream &str, const SignalSlot &sender, const SignalSlot &receiver)
+{
+    switch (language()) {
+    case Language::Cpp:
+        str << "QObject::connect(" << sender.name << ", SIGNAL("<< sender.signature
+            << "), " << receiver.name << ", SLOT("<< receiver.signature << "))";
+        break;
+    case Language::Python:
+        str << sender.name << '.'
+            << sender.signature.leftRef(sender.signature.indexOf(QLatin1Char('(')))
+            << ".connect(" << receiver.name << '.'
+            << receiver.signature.leftRef(receiver.signature.indexOf(QLatin1Char('(')))
+            << ')';
+        break;
+    }
+}
+
+QString boolValue(bool v)
+{
+    switch (language()) {
+    case Language::Cpp:
+        return v ? cppTrue : cppFalse;
+    case Language::Python:
+        return v ? QStringLiteral("True") : QStringLiteral("False");
+    }
+    Q_UNREACHABLE();
+}
+
+static inline QString dot() { return QStringLiteral("."); }
+
+QString enumValue(const QString &value)
+{
+    if (language() == Language::Cpp || !value.contains(cppQualifier))
+        return value;
+    QString fixed = value;
+    fixed.replace(cppQualifier, dot());
+    return fixed;
+}
+
 } // namespace language
diff --git a/src/tools/uic/shared/language.h b/src/tools/uic/shared/language.h
index e7201b6529..fc8af9715b 100644
--- a/src/tools/uic/shared/language.h
+++ b/src/tools/uic/shared/language.h
@@ -29,12 +29,31 @@
 #ifndef LANGUAGE_H
 #define LANGUAGE_H
 
+#include <QtCore/qstring.h>
 #include <QtCore/qstringview.h>
+#include <QtCore/qstring.h>
 
 QT_FORWARD_DECLARE_CLASS(QTextStream)
 
+enum class Language { Cpp, Python };
+
 namespace language {
 
+Language language();
+void setLanguage(Language);
+
+extern QString derefPointer;
+extern QString nullPtr;
+extern QString operatorNew;
+extern QString qtQualifier;
+extern QString qualifier;
+extern QString self;
+extern QString eol;
+
+extern QString cppQualifier;
+extern QString cppTrue;
+extern QString cppFalse;
+
 // Base class for streamable objects with one QStringView parameter
 class StringViewStreamable
 {
@@ -71,11 +90,119 @@ public:
 
 QTextStream &operator<<(QTextStream &, const closeQtConfig &c);
 
+QString fixClassName(QString className);
+
 const char *toolbarArea(int v);
 const char *sizePolicy(int v);
 const char *dockWidgetArea(int v);
 const char *paletteColorRole(int v);
 
+enum class Encoding { Utf8, Unicode };
+
+void _formatString(QTextStream &str, const QString &value, const QString &indent,
+                   bool qString);
+
+template <bool AsQString>
+class _string
+{
+public:
+    explicit _string(const QString &value, const QString &indent = QString())
+        : m_value(value), m_indent(indent) {}
+
+    void format(QTextStream &str) const
+    { _formatString(str, m_value, m_indent, AsQString); }
+
+private:
+    const QString &m_value;
+    const QString &m_indent;
+};
+
+template <bool AsQString>
+inline QTextStream &operator<<(QTextStream &str, const language::_string<AsQString> &s)
+{
+    s.format(str);
+    return str;
+}
+
+using charliteral = _string<false>;
+using qstring = _string<true>;
+
+class repeat {
+public:
+    explicit repeat(int count, char c) : m_count(count), m_char(c) {}
+
+    friend QTextStream &operator<<(QTextStream &str, const repeat &r);
+
+private:
+    const int m_count;
+    const char m_char;
+};
+
+class startFunctionDefinition1 {
+public:
+    explicit startFunctionDefinition1(const char *name, const QString &parameterType,
+                                      const QString &parameterName,
+                                      const QString &indent,
+                                      const char *returnType = nullptr);
+
+    friend QTextStream &operator<<(QTextStream &str, const startFunctionDefinition1 &f);
+private:
+    const char *m_name;
+    const QString &m_parameterType;
+    const QString &m_parameterName;
+    const QString &m_indent;
+    const char *m_return;
+};
+
+class endFunctionDefinition {
+public:
+    explicit endFunctionDefinition(const char *name);
+
+    friend QTextStream &operator<<(QTextStream &str, const endFunctionDefinition &f);
+private:
+    const char *m_name;
+};
+
+void _formatStackVariable(QTextStream &str, const char *className, QStringView varName, bool withInitParameters);
+
+template <bool withInitParameters>
+class _stackVariable {
+public:
+    explicit _stackVariable(const char *className, QStringView varName) :
+        m_className(className), m_varName(varName) {}
+
+    void format(QTextStream &str) const
+    { _formatStackVariable(str, m_className, m_varName, withInitParameters); }
+
+private:
+    const char *m_className;
+    QStringView m_varName;
+    QStringView m_parameters;
+};
+
+template <bool withInitParameters>
+inline QTextStream &operator<<(QTextStream &str, const _stackVariable<withInitParameters> &s)
+{
+    s.format(str);
+    return str;
+}
+
+using stackVariable = _stackVariable<false>;
+using stackVariableWithInitParameters = _stackVariable<true>;
+
+struct SignalSlot
+{
+    QString name;
+    QString signature;
+    QString className;
+};
+
+void formatConnection(QTextStream &str, const SignalSlot &sender, const SignalSlot &receiver);
+
+QString boolValue(bool v);
+
+QString enumValue(const QString &value);
+
 } // namespace language
 
 #endif // LANGUAGE_H
diff --git a/src/tools/uic/uic.cpp b/src/tools/uic/uic.cpp
index 225dc6aeb2..b95f1a784b 100644
--- a/src/tools/uic/uic.cpp
+++ b/src/tools/uic/uic.cpp
@@ -35,6 +35,10 @@
 
 #include "cppwriteincludes.h"
 #include "cppwritedeclaration.h"
+#include <pythonwritedeclaration.h>
+#include <pythonwriteimports.h>
+
+#include <language.h>
 
 #include <qxmlstream.h>
 #include <qfileinfo.h>
@@ -103,7 +107,7 @@ bool Uic::printDependencies()
     return true;
 }
 
-void Uic::writeCopyrightHeader(DomUI *ui)
+void Uic::writeCopyrightHeaderCpp(const DomUI *ui) const
 {
     QString comment = ui->elementComment();
     if (!comment.isEmpty())
@@ -118,6 +122,48 @@ void Uic::writeCopyrightHeader(DomUI *ui)
     out << "********************************************************************************/\n\n";
 }
 
+// Format existing UI file comments for Python with some smartness : Replace all
+// leading C++ comment characters by '#' or prepend '#' if needed.
+
+static inline bool isCppCommentChar(QChar c)
+{
+    return  c == QLatin1Char('/') || c == QLatin1Char('*');
+}
+
+static int leadingCppCommentCharCount(const QStringRef &s)
+{
+    int i = 0;
+    for (const int size = s.size(); i < size && isCppCommentChar(s.at(i)); ++i) {
+    }
+    return i;
+}
+
+void Uic::writeCopyrightHeaderPython(const DomUI *ui) const
+{
+    QString comment = ui->elementComment();
+    if (!comment.isEmpty()) {
+        const auto lines = comment.splitRef(QLatin1Char('\n'));
+        for (const auto &line : lines) {
+            if (const int leadingCommentChars = leadingCppCommentCharCount(line)) {
+                 out << language::repeat(leadingCommentChars, '#')
+                     << line.right(line.size() - leadingCommentChars);
+            } else {
+                if (!line.startsWith(QLatin1Char('#')))
+                    out << "# ";
+                out << line;
+            }
+            out << '\n';
+        }
+        out << '\n';
+    }
+
+    out << language::repeat(80, '#') << "\n## Form generated from reading UI file '"
+        << QFileInfo(opt.inputFile).fileName()
+        << "'\n##\n## Created by: Qt User Interface Compiler version " << QT_VERSION_STR
+        << "\n##\n## WARNING! All changes made in this file will be lost when recompiling UI file!\n"
+        << language::repeat(80, '#') << "\n\n";
+}
+
 // Check the version with a stream reader at the <ui> element.
 
 static double versionFromUiAttribute(QXmlStreamReader &reader)
@@ -195,15 +241,26 @@ bool Uic::write(QIODevice *in)
 
 bool Uic::write(DomUI *ui)
 {
-    using namespace CPP;
-
     if (!ui || !ui->elementWidget())
         return false;
 
-    if (opt.copyrightHeader)
-        writeCopyrightHeader(ui);
+    const auto lang = language::language();
+
+    if (lang == Language::Python)
+       out << "# -*- coding: utf-8 -*-\n\n";
 
-    if (opt.headerProtection) {
+    if (opt.copyrightHeader) {
+        switch (language::language()) {
+        case Language::Cpp:
+            writeCopyrightHeaderCpp(ui);
+            break;
+        case Language::Python:
+            writeCopyrightHeaderPython(ui);
+            break;
+        }
+    }
+
+    if (opt.headerProtection && lang == Language::Cpp) {
         writeHeaderProtectionStart();
         out << "\n";
     }
@@ -218,13 +275,25 @@ bool Uic::write(DomUI *ui)
 
     info.acceptUI(ui);
     cWidgetsInfo.acceptUI(ui);
-    WriteIncludes writeIncludes(this);
-    writeIncludes.acceptUI(ui);
 
-    Validator(this).acceptUI(ui);
-    WriteDeclaration(this).acceptUI(ui);
+    switch (language::language()) {
+    case Language::Cpp: {
+        CPP::WriteIncludes writeIncludes(this);
+        writeIncludes.acceptUI(ui);
+        Validator(this).acceptUI(ui);
+        CPP::WriteDeclaration(this).acceptUI(ui);
+    }
+        break;
+    case Language::Python: {
+        Python::WriteImports writeImports(this);
+        writeImports.acceptUI(ui);
+        Validator(this).acceptUI(ui);
+        Python::WriteDeclaration(this).acceptUI(ui);
+    }
+        break;
+    }
 
-    if (opt.headerProtection)
+    if (opt.headerProtection && lang == Language::Cpp)
         writeHeaderProtectionEnd();
 
     return true;
diff --git a/src/tools/uic/uic.h b/src/tools/uic/uic.h
index af5f42c6db..f3dfd49149 100644
--- a/src/tools/uic/uic.h
+++ b/src/tools/uic/uic.h
@@ -91,7 +91,8 @@ public:
 
 private:
     // copyright header
-    void writeCopyrightHeader(DomUI *ui);
+    void writeCopyrightHeaderCpp(const DomUI *ui) const;
+    void writeCopyrightHeaderPython(const DomUI *ui) const;
     DomUI *parseUiFile(QXmlStreamReader &reader);
 
     // header protection
diff --git a/src/tools/uic/uic.pro b/src/tools/uic/uic.pro
index 4469ce50e5..1bf8ef8ad3 100644
--- a/src/tools/uic/uic.pro
+++ b/src/tools/uic/uic.pro
@@ -7,6 +7,7 @@ DEFINES += QT_UIC QT_NO_CAST_FROM_ASCII QT_NO_FOREACH
 include(uic.pri)
 include(shared/shared.pri)
 include(cpp/cpp.pri)
+include(python/python.pri)
 
 HEADERS += uic.h
 
diff --git a/src/tools/uic/utils.h b/src/tools/uic/utils.h
index 3f32a532ca..34c4ab23d4 100644
--- a/src/tools/uic/utils.h
+++ b/src/tools/uic/utils.h
@@ -42,55 +42,6 @@ inline bool toBool(const QString &str)
 inline QString toString(const DomString *str)
 { return str ? str->text() : QString(); }
 
-inline QString fixString(const QString &str, const QString &indent)
-{
-    QString cursegment;
-    QStringList result;
-    const QByteArray utf8 = str.toUtf8();
-    const int utf8Length = utf8.length();
-
-    for (int i = 0; i < utf8Length; ++i) {
-        const uchar cbyte = utf8.at(i);
-        if (cbyte >= 0x80) {
-            cursegment += QLatin1Char('\\');
-            cursegment += QString::number(cbyte, 8);
-        } else {
-            switch(cbyte) {
-            case '\\':
-                cursegment += QLatin1String("\\\\"); break;
-            case '\"':
-                cursegment += QLatin1String("\\\""); break;
-            case '\r':
-                break;
-            case '\n':
-                cursegment += QLatin1String("\\n\"\n\""); break;
-            default:
-                cursegment += QLatin1Char(cbyte);
-            }
-        }
-
-        if (cursegment.length() > 1024) {
-            result << cursegment;
-            cursegment.clear();
-        }
-    }
-
-    if (!cursegment.isEmpty())
-        result << cursegment;
-
-
-    QString joinstr = QLatin1String("\"\n");
-    joinstr += indent;
-    joinstr += indent;
-    joinstr += QLatin1Char('"');
-
-    QString rc(QLatin1Char('"'));
-    rc += result.join(joinstr);
-    rc += QLatin1Char('"');
-
-    return rc;
-}
-
 inline QHash<QString, DomProperty *> propertyMap(const QList<DomProperty *> &properties)
 {
     QHash<QString, DomProperty *> map;
diff --git a/src/widgets/dialogs/qcolordialog.cpp b/src/widgets/dialogs/qcolordialog.cpp
index c0bacd553d..a6b6df4045 100644
--- a/src/widgets/dialogs/qcolordialog.cpp
+++ b/src/widgets/dialogs/qcolordialog.cpp
@@ -57,6 +57,11 @@
 #include "qpainter.h"
 #include "qpixmap.h"
 #include "qpushbutton.h"
+#if QT_CONFIG(regularexpression)
+#include <qregularexpression.h>
+#else
+#include <qregexp.h>
+#endif
 #if QT_CONFIG(settings)
 #include "qsettings.h"
 #endif
diff --git a/src/widgets/dialogs/qdialog.cpp b/src/widgets/dialogs/qdialog.cpp
index caab6c16ba..5692a16bce 100644
--- a/src/widgets/dialogs/qdialog.cpp
+++ b/src/widgets/dialogs/qdialog.cpp
@@ -270,12 +270,11 @@ void QDialogPrivate::deletePlatformHelper()
 
     The most common way to display a modal dialog is to call its
     exec() function. When the user closes the dialog, exec() will
-    provide a useful \l{#return}{return value}. Typically,
-    to get the dialog to close and return the appropriate value, we
-    connect a default button, e.g. \uicontrol OK, to the accept() slot and a
-    \uicontrol Cancel button to the reject() slot.
-    Alternatively you can call the done() slot with \c Accepted or
-    \c Rejected.
+    provide a useful \l{#return}{return value}. To close the dialog
+    and return the appropriate value, you must connect a default button,
+    e.g. an \uicontrol OK button to the accept() slot and a
+    \uicontrol Cancel button to the reject() slot. Alternatively, you
+    can call the done() slot with \c Accepted or \c Rejected.
 
     An alternative is to call setModal(true) or setWindowModality(),
     then show(). Unlike exec(), show() returns control to the caller
diff --git a/src/widgets/dialogs/qdialog_p.h b/src/widgets/dialogs/qdialog_p.h
index 92634f6793..74f775a0bd 100644
--- a/src/widgets/dialogs/qdialog_p.h
+++ b/src/widgets/dialogs/qdialog_p.h
@@ -75,15 +75,15 @@ public:
     QDialogPrivate()
         :
 #if QT_CONFIG(pushbutton)
-          mainDef(0),
+          mainDef(nullptr),
 #endif
-          orientation(Qt::Horizontal),extension(0), doShowExtension(false),
+          orientation(Qt::Horizontal),extension(nullptr), doShowExtension(false),
 #if QT_CONFIG(sizegrip)
-          resizer(0),
+          resizer(nullptr),
           sizeGripEnabled(false),
 #endif
-          rescode(0), resetModalityTo(-1), wasModalitySet(true), eventLoop(0),
-          nativeDialogInUse(false), m_platformHelper(0), m_platformHelperCreated(false)
+          rescode(0), resetModalityTo(-1), wasModalitySet(true), eventLoop(nullptr),
+          nativeDialogInUse(false), m_platformHelper(nullptr), m_platformHelperCreated(false)
         {}
     ~QDialogPrivate();
 
@@ -140,14 +140,14 @@ class QAutoPointer {
     struct internal { void func() {} };
     typedef void (internal::*RestrictedBool)();
 public:
-    explicit QAutoPointer(T *t) Q_DECL_NOTHROW : o(t) {}
+    explicit QAutoPointer(T *t) noexcept : o(t) {}
     ~QAutoPointer() { delete o; }
 
-    T *operator->() const Q_DECL_NOTHROW { return get(); }
-    T *get() const Q_DECL_NOTHROW { return o; }
+    T *operator->() const noexcept { return get(); }
+    T *get() const noexcept { return o; }
     T &operator*() const { return *get(); }
-    operator RestrictedBool() const Q_DECL_NOTHROW { return o ? &internal::func : nullptr; }
-    bool operator!() const Q_DECL_NOTHROW { return !o; }
+    operator RestrictedBool() const noexcept { return o ? &internal::func : nullptr; }
+    bool operator!() const noexcept { return !o; }
 private:
     Q_DISABLE_COPY(QAutoPointer);
 };
diff --git a/src/widgets/dialogs/qerrormessage.cpp b/src/widgets/dialogs/qerrormessage.cpp
index fd68f19680..51a3e080bf 100644
--- a/src/widgets/dialogs/qerrormessage.cpp
+++ b/src/widgets/dialogs/qerrormessage.cpp
@@ -322,8 +322,8 @@ bool QErrorMessagePrivate::nextPending()
 #else
             errors->setPlainText(message);
 #endif
-            currentMessage = qMove(message);
-            currentType = qMove(type);
+            currentMessage = std::move(message);
+            currentType = std::move(type);
             return true;
         }
     }
diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index f772eb1241..fcac12068d 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -77,6 +77,8 @@
 #include <private/qwasmlocalfileaccess_p.h>
 #endif
 
+#include <algorithm>
+
 QT_BEGIN_NAMESPACE
 
 Q_GLOBAL_STATIC(QUrl, lastVisitedDir)
@@ -3372,6 +3374,18 @@ void QFileDialogPrivate::_q_goHome()
     q->setDirectory(QDir::homePath());
 }
 
+
+void QFileDialogPrivate::saveHistorySelection()
+{
+    if (qFileDialogUi.isNull() || currentHistoryLocation < 0 || currentHistoryLocation >= currentHistory.size())
+        return;
+    auto &item = currentHistory[currentHistoryLocation];
+    item.selection.clear();
+    const auto selectedIndexes = qFileDialogUi->listView->selectionModel()->selectedRows();
+    for (const auto &index : selectedIndexes)
+        item.selection.append(QPersistentModelIndex(index));
+}
+
 /*!
     \internal
 
@@ -3385,17 +3399,49 @@ void QFileDialogPrivate::_q_pathChanged(const QString &newPath)
     qFileDialogUi->sidebar->selectUrl(QUrl::fromLocalFile(newPath));
     q->setHistory(qFileDialogUi->lookInCombo->history());
 
-    if (currentHistoryLocation < 0 || currentHistory.value(currentHistoryLocation) != QDir::toNativeSeparators(newPath)) {
+    const QString newNativePath = QDir::toNativeSeparators(newPath);
+
+    // equal paths indicate this was invoked by _q_navigateBack/Forward()
+    if (currentHistoryLocation < 0 || currentHistory.value(currentHistoryLocation).path != newNativePath) {
+        if (currentHistoryLocation >= 0)
+            saveHistorySelection();
         while (currentHistoryLocation >= 0 && currentHistoryLocation + 1 < currentHistory.count()) {
             currentHistory.removeLast();
         }
-        currentHistory.append(QDir::toNativeSeparators(newPath));
+        currentHistory.append({newNativePath, PersistentModelIndexList()});
         ++currentHistoryLocation;
     }
     qFileDialogUi->forwardButton->setEnabled(currentHistory.size() - currentHistoryLocation > 1);
     qFileDialogUi->backButton->setEnabled(currentHistoryLocation > 0);
 }
 
+void QFileDialogPrivate::navigate(HistoryItem &historyItem)
+{
+    Q_Q(QFileDialog);
+    q->setDirectory(historyItem.path);
+    // Restore selection unless something has changed in the file system
+    if (qFileDialogUi.isNull() || historyItem.selection.isEmpty())
+        return;
+    if (std::any_of(historyItem.selection.cbegin(), historyItem.selection.cend(),
+                    [](const QPersistentModelIndex &i) { return !i.isValid(); })) {
+        historyItem.selection.clear();
+        return;
+    }
+
+    QAbstractItemView *view = q->viewMode() == QFileDialog::List
+        ? static_cast<QAbstractItemView *>(qFileDialogUi->listView)
+        : static_cast<QAbstractItemView *>(qFileDialogUi->treeView);
+    auto selectionModel = view->selectionModel();
+    const QItemSelectionModel::SelectionFlags flags = QItemSelectionModel::Select
+        | QItemSelectionModel::Rows;
+    selectionModel->select(historyItem.selection.constFirst(),
+                           flags | QItemSelectionModel::Clear | QItemSelectionModel::Current);
+    for (int i = 1, size = historyItem.selection.size(); i < size; ++i)
+        selectionModel->select(historyItem.selection.at(i), flags);
+
+    view->scrollTo(historyItem.selection.constFirst());
+}
+
 /*!
     \internal
 
@@ -3403,11 +3449,9 @@ void QFileDialogPrivate::_q_pathChanged(const QString &newPath)
 */
 void QFileDialogPrivate::_q_navigateBackward()
 {
-    Q_Q(QFileDialog);
     if (!currentHistory.isEmpty() && currentHistoryLocation > 0) {
-        --currentHistoryLocation;
-        QString previousHistory = currentHistory.at(currentHistoryLocation);
-        q->setDirectory(previousHistory);
+        saveHistorySelection();
+        navigate(currentHistory[--currentHistoryLocation]);
     }
 }
 
@@ -3418,11 +3462,9 @@ void QFileDialogPrivate::_q_navigateBackward()
 */
 void QFileDialogPrivate::_q_navigateForward()
 {
-    Q_Q(QFileDialog);
     if (!currentHistory.isEmpty() && currentHistoryLocation < currentHistory.size() - 1) {
-        ++currentHistoryLocation;
-        QString nextHistory = currentHistory.at(currentHistoryLocation);
-        q->setDirectory(nextHistory);
+        saveHistorySelection();
+        navigate(currentHistory[++currentHistoryLocation]);
     }
 }
 
diff --git a/src/widgets/dialogs/qfiledialog_p.h b/src/widgets/dialogs/qfiledialog_p.h
index 463c77aa23..dcf147348f 100644
--- a/src/widgets/dialogs/qfiledialog_p.h
+++ b/src/widgets/dialogs/qfiledialog_p.h
@@ -98,7 +98,7 @@ class QPlatformDialogHelper;
 
 struct QFileDialogArgs
 {
-    QFileDialogArgs() : parent(0), mode(QFileDialog::AnyFile) {}
+    QFileDialogArgs() : parent(nullptr), mode(QFileDialog::AnyFile) {}
 
     QWidget *parent;
     QString caption;
@@ -116,6 +116,14 @@ class Q_WIDGETS_EXPORT QFileDialogPrivate : public QDialogPrivate
     Q_DECLARE_PUBLIC(QFileDialog)
 
 public:
+    using PersistentModelIndexList = QVector<QPersistentModelIndex>;
+
+    struct HistoryItem
+    {
+        QString path;
+        PersistentModelIndexList selection;
+    };
+
     QFileDialogPrivate();
 
     QPlatformFileDialogHelper *platformFileDialogHelper() const
@@ -193,9 +201,11 @@ public:
     void retranslateWindowTitle();
     void retranslateStrings();
     void emitFilesSelected(const QStringList &files);
+    void saveHistorySelection();
 
     void _q_goHome();
     void _q_pathChanged(const QString &);
+    void navigate(HistoryItem &);
     void _q_navigateBackward();
     void _q_navigateForward();
     void _q_navigateToParent();
@@ -237,7 +247,7 @@ public:
 
     QString setWindowTitle;
 
-    QStringList currentHistory;
+    QList<HistoryItem> currentHistory;
     int currentHistoryLocation;
 
     QAction *renameAction;
@@ -292,7 +302,7 @@ private:
 class QFileDialogLineEdit : public QLineEdit
 {
 public:
-    QFileDialogLineEdit(QWidget *parent = 0) : QLineEdit(parent), d_ptr(0){}
+    QFileDialogLineEdit(QWidget *parent = nullptr) : QLineEdit(parent), d_ptr(nullptr){}
     void setFileDialogPrivate(QFileDialogPrivate *d_pointer) {d_ptr = d_pointer; }
     void keyPressEvent(QKeyEvent *e) override;
     bool hideOnEsc;
@@ -303,7 +313,7 @@ private:
 class QFileDialogComboBox : public QComboBox
 {
 public:
-    QFileDialogComboBox(QWidget *parent = 0) : QComboBox(parent), urlModel(0) {}
+    QFileDialogComboBox(QWidget *parent = nullptr) : QComboBox(parent), urlModel(nullptr) {}
     void setFileDialogPrivate(QFileDialogPrivate *d_pointer);
     void showPopup() override;
     void setHistory(const QStringList &paths);
@@ -319,7 +329,7 @@ private:
 class QFileDialogListView : public QListView
 {
 public:
-    QFileDialogListView(QWidget *parent = 0);
+    QFileDialogListView(QWidget *parent = nullptr);
     void setFileDialogPrivate(QFileDialogPrivate *d_pointer);
     QSize sizeHint() const override;
 protected:
diff --git a/src/widgets/dialogs/qfileinfogatherer_p.h b/src/widgets/dialogs/qfileinfogatherer_p.h
index 134a14b7ce..795f60249f 100644
--- a/src/widgets/dialogs/qfileinfogatherer_p.h
+++ b/src/widgets/dialogs/qfileinfogatherer_p.h
@@ -166,7 +166,7 @@ Q_SIGNALS:
     void directoryLoaded(const QString &path);
 
 public:
-    explicit QFileInfoGatherer(QObject *parent = 0);
+    explicit QFileInfoGatherer(QObject *parent = nullptr);
     ~QFileInfoGatherer();
 
 #if QT_CONFIG(filesystemwatcher) && defined(Q_OS_WIN)
diff --git a/src/widgets/dialogs/qfilesystemmodel_p.h b/src/widgets/dialogs/qfilesystemmodel_p.h
index 9c432e1ae6..d8f9f2b076 100644
--- a/src/widgets/dialogs/qfilesystemmodel_p.h
+++ b/src/widgets/dialogs/qfilesystemmodel_p.h
@@ -99,13 +99,13 @@ public:
     class QFileSystemNode
     {
     public:
-        explicit QFileSystemNode(const QString &filename = QString(), QFileSystemNode *p = 0)
-            : fileName(filename), populatedChildren(false), isVisible(false), dirtyChildrenIndex(-1), parent(p), info(0) {}
+        explicit QFileSystemNode(const QString &filename = QString(), QFileSystemNode *p = nullptr)
+            : fileName(filename), populatedChildren(false), isVisible(false), dirtyChildrenIndex(-1), parent(p), info(nullptr) {}
         ~QFileSystemNode() {
             qDeleteAll(children);
             delete info;
-            info = 0;
-            parent = 0;
+            info = nullptr;
+            parent = nullptr;
         }
 
         QString fileName;
@@ -116,7 +116,7 @@ public:
         inline qint64 size() const { if (info && !info->isDir()) return info->size(); return 0; }
         inline QString type() const { if (info) return info->displayType; return QLatin1String(""); }
         inline QDateTime lastModified() const { if (info) return info->lastModified(); return QDateTime(); }
-        inline QFile::Permissions permissions() const { if (info) return info->permissions(); return 0; }
+        inline QFile::Permissions permissions() const { if (info) return info->permissions(); return nullptr; }
         inline bool isReadable() const { return ((permissions() & QFile::ReadUser) != 0); }
         inline bool isWritable() const { return ((permissions() & QFile::WriteUser) != 0); }
         inline bool isExecutable() const { return ((permissions() & QFile::ExeUser) != 0); }
@@ -162,7 +162,7 @@ public:
             return info && (*info == fileInfo);
         }
 
-        inline bool hasInformation() const { return info != 0; }
+        inline bool hasInformation() const { return info != nullptr; }
 
         void populate(const QExtendedInformation &fileInfo) {
             if (!info)
diff --git a/src/widgets/dialogs/qfscompleter_p.h b/src/widgets/dialogs/qfscompleter_p.h
index 3b829d4a52..f5110a7622 100644
--- a/src/widgets/dialogs/qfscompleter_p.h
+++ b/src/widgets/dialogs/qfscompleter_p.h
@@ -64,8 +64,8 @@ QT_BEGIN_NAMESPACE
   */
 class Q_WIDGETS_EXPORT QFSCompleter :  public QCompleter {
 public:
-    explicit QFSCompleter(QFileSystemModel *model, QObject *parent = 0)
-        : QCompleter(model, parent), proxyModel(0), sourceModel(model)
+    explicit QFSCompleter(QFileSystemModel *model, QObject *parent = nullptr)
+        : QCompleter(model, parent), proxyModel(nullptr), sourceModel(model)
     {
 #if defined(Q_OS_WIN)
         setCaseSensitivity(Qt::CaseInsensitive);
diff --git a/src/widgets/dialogs/qsidebar_p.h b/src/widgets/dialogs/qsidebar_p.h
index 4a82f88878..6056f19452 100644
--- a/src/widgets/dialogs/qsidebar_p.h
+++ b/src/widgets/dialogs/qsidebar_p.h
@@ -67,7 +67,7 @@ class QFileSystemModel;
 class QSideBarDelegate : public QStyledItemDelegate
 {
  public:
-     QSideBarDelegate(QWidget *parent = 0) : QStyledItemDelegate(parent) {}
+     QSideBarDelegate(QWidget *parent = nullptr) : QStyledItemDelegate(parent) {}
      void initStyleOption(QStyleOptionViewItem *option,
                           const QModelIndex &index) const override;
 };
@@ -82,7 +82,7 @@ public:
         EnabledRole = Qt::UserRole + 2
     };
 
-    QUrlModel(QObject *parent = 0);
+    QUrlModel(QObject *parent = nullptr);
 
     QStringList mimeTypes() const override;
     QMimeData *mimeData(const QModelIndexList &indexes) const override;
@@ -127,7 +127,7 @@ Q_SIGNALS:
     void goToUrl(const QUrl &url);
 
 public:
-    QSidebar(QWidget *parent = 0);
+    QSidebar(QWidget *parent = nullptr);
     void setModelAndUrls(QFileSystemModel *model, const QList<QUrl> &newUrls);
     ~QSidebar();
 
diff --git a/src/widgets/dialogs/qwizard.cpp b/src/widgets/dialogs/qwizard.cpp
index 88b187cd7f..f428114bbe 100644
--- a/src/widgets/dialogs/qwizard.cpp
+++ b/src/widgets/dialogs/qwizard.cpp
@@ -1595,23 +1595,25 @@ bool QWizardPrivate::handleAeroStyleChange()
     bool vistaMargins = false;
 
     if (isVistaThemeEnabled()) {
+        const int topOffset = vistaHelper->topOffset();
+        const int topPadding = vistaHelper->topPadding();
         if (isVistaThemeEnabled(QVistaHelper::VistaAero)) {
             if (isWindow) {
                 vistaHelper->setDWMTitleBar(QVistaHelper::ExtendedTitleBar);
                 q->installEventFilter(vistaHelper);
             }
             q->setMouseTracking(true);
-            antiFlickerWidget->move(0, vistaHelper->titleBarSize() + vistaHelper->topOffset());
+            antiFlickerWidget->move(0, vistaHelper->titleBarSize() + topOffset);
             vistaHelper->backButton()->move(
-                0, vistaHelper->topOffset() // ### should ideally work without the '+ 1'
-                - qMin(vistaHelper->topOffset(), vistaHelper->topPadding() + 1));
+                0, topOffset // ### should ideally work without the '+ 1'
+                - qMin(topOffset, topPadding + 1));
             vistaMargins = true;
             vistaHelper->backButton()->show();
         } else {
             if (isWindow)
                 vistaHelper->setDWMTitleBar(QVistaHelper::NormalTitleBar);
             q->setMouseTracking(true);
-            antiFlickerWidget->move(0, vistaHelper->topOffset());
+            antiFlickerWidget->move(0, topOffset);
             vistaHelper->backButton()->move(0, -1); // ### should ideally work with (0, 0)
         }
         if (isWindow)
@@ -3257,7 +3259,11 @@ void QWizard::paintEvent(QPaintEvent * event)
 /*!
     \reimp
 */
+#  if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWizard::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#  else
 bool QWizard::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#  endif
 {
 #if QT_CONFIG(style_windowsvista)
     Q_D(QWizard);
diff --git a/src/widgets/dialogs/qwizard.h b/src/widgets/dialogs/qwizard.h
index 0dd837b197..ef71efa0cb 100644
--- a/src/widgets/dialogs/qwizard.h
+++ b/src/widgets/dialogs/qwizard.h
@@ -188,7 +188,11 @@ protected:
     void resizeEvent(QResizeEvent *event) override;
     void paintEvent(QPaintEvent *event) override;
 #if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
+#  if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result) override;
+#  else
     bool nativeEvent(const QByteArray &eventType, void *message, long *result) override;
+#  endif
 #endif
     void done(int result) override;
     virtual void initializePage(int id);
diff --git a/src/widgets/dialogs/qwizard_win.cpp b/src/widgets/dialogs/qwizard_win.cpp
index aa9ad7f290..95f8f6a878 100644
--- a/src/widgets/dialogs/qwizard_win.cpp
+++ b/src/widgets/dialogs/qwizard_win.cpp
@@ -172,7 +172,7 @@ void QVistaHelper::updateCustomMargins(bool vistaMargins)
         const QMargins customMarginsDp = vistaMargins
             ? QMargins(0, -titleBarSizeDp(), 0, 0)
             : QMargins();
-        const QVariant customMarginsV = qVariantFromValue(customMarginsDp);
+        const QVariant customMarginsV = QVariant::fromValue(customMarginsDp);
         // The dynamic property takes effect when creating the platform window.
         window->setProperty("_q_windowsCustomMargins", customMarginsV);
         // If a platform window exists, change via native interface.
@@ -293,9 +293,9 @@ void QVistaHelper::drawTitleBar(QPainter *painter)
     int glowOffset = 0;
 
     if (vistaState() == VistaAero) {
-        textHeight += 2 * glowSize();
-        textWidth += 2 * glowSize();
         glowOffset = glowSize();
+        textHeight += 2 * glowOffset;
+        textWidth += 2 * glowOffset;
     }
 
     const int titleLeft = (wizard->layoutDirection() == Qt::LeftToRight
@@ -339,7 +339,11 @@ void QVistaHelper::setTitleBarIconAndCaptionVisible(bool visible)
         SetWindowThemeAttribute(handle, WTA_NONCLIENT, &opt, sizeof(WTA_OPTIONS));
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QVistaHelper::winEvent(MSG* msg, qintptr *result)
+#else
 bool QVistaHelper::winEvent(MSG* msg, long* result)
+#endif
 {
     switch (msg->message) {
     case WM_NCHITTEST: {
@@ -401,7 +405,11 @@ void QVistaHelper::mouseEvent(QEvent *event)
     }
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QVistaHelper::handleWinEvent(MSG *message, qintptr *result)
+#else
 bool QVistaHelper::handleWinEvent(MSG *message, long *result)
+#endif
 {
     if (message->message == WM_THEMECHANGED || message->message == WM_DWMCOMPOSITIONCHANGED)
         cachedVistaState = Dirty;
@@ -509,7 +517,11 @@ bool QVistaHelper::eventFilter(QObject *obj, QEvent *event)
 
     if (event->type() == QEvent::MouseMove) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+        qintptr result;
+#else
         long result;
+#endif
         MSG msg;
         msg.message = WM_NCHITTEST;
         msg.wParam  = 0;
@@ -523,7 +535,11 @@ bool QVistaHelper::eventFilter(QObject *obj, QEvent *event)
         QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
 
         if (mouseEvent->button() == Qt::LeftButton) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+            qintptr result;
+#else
             long result;
+#endif
             MSG msg;
             msg.message = WM_NCHITTEST;
             msg.wParam  = 0;
@@ -538,7 +554,11 @@ bool QVistaHelper::eventFilter(QObject *obj, QEvent *event)
         QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
 
         if (mouseEvent->button() == Qt::LeftButton) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+            qintptr result;
+#else
             long result;
+#endif
             MSG msg;
             msg.message = WM_NCHITTEST;
             msg.wParam  = 0;
diff --git a/src/widgets/dialogs/qwizard_win_p.h b/src/widgets/dialogs/qwizard_win_p.h
index 02c5e52c2c..b3796e3f48 100644
--- a/src/widgets/dialogs/qwizard_win_p.h
+++ b/src/widgets/dialogs/qwizard_win_p.h
@@ -93,7 +93,11 @@ public:
     bool setDWMTitleBar(TitleBarChangeType type);
     void setTitleBarIconAndCaptionVisible(bool visible);
     void mouseEvent(QEvent *event);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool handleWinEvent(MSG *message, qintptr *result);
+#else
     bool handleWinEvent(MSG *message, long *result);
+#endif
     void resizeEvent(QResizeEvent *event);
     void paintEvent(QPaintEvent *event);
     QVistaBackButton *backButton() const { return backButton_; }
@@ -130,7 +134,11 @@ private:
     void drawTitleBar(QPainter *painter);
     void setMouseCursor(QPoint pos);
     void collapseTopFrameStrut();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool winEvent(MSG *message, qintptr *result);
+#else
     bool winEvent(MSG *message, long *result);
+#endif
     void mouseMoveEvent(QMouseEvent *event);
     void mousePressEvent(QMouseEvent *event);
     void mouseReleaseEvent(QMouseEvent *event);
diff --git a/src/widgets/doc/snippets/timeline/main.cpp b/src/widgets/doc/snippets/timeline/main.cpp
index 74aa749254..4dfa2400d0 100644
--- a/src/widgets/doc/snippets/timeline/main.cpp
+++ b/src/widgets/doc/snippets/timeline/main.cpp
@@ -48,7 +48,7 @@
 **
 ****************************************************************************/
 
-#include <QtGui>
+#include <QtWidgets>
 #include <math.h>
 
 int main(int argv, char *args[])
@@ -68,7 +68,7 @@ int main(int argv, char *args[])
     for (int i = 0; i < 200; ++i)
         animation->setPosAt(i / 200.0, QPointF(i, i));
 
-    QGraphicsScene *scene = new QGraphicsScene();
+    QGraphicsScene *scene = new QGraphicsScene;
     scene->setSceneRect(0, 0, 250, 250);
     scene->addItem(ball);
 
diff --git a/src/widgets/effects/qgraphicseffect_p.h b/src/widgets/effects/qgraphicseffect_p.h
index 2f3bd2f7fd..7e342a9f3c 100644
--- a/src/widgets/effects/qgraphicseffect_p.h
+++ b/src/widgets/effects/qgraphicseffect_p.h
@@ -80,11 +80,11 @@ public:
     QRectF boundingRect(Qt::CoordinateSystem coordinateSystem = Qt::LogicalCoordinates) const;
     QRect deviceRect() const;
     QPixmap pixmap(Qt::CoordinateSystem system = Qt::LogicalCoordinates,
-                   QPoint *offset = 0,
+                   QPoint *offset = nullptr,
                    QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToEffectiveBoundingRect) const;
 
 protected:
-    QGraphicsEffectSource(QGraphicsEffectSourcePrivate &dd, QObject *parent = 0);
+    QGraphicsEffectSource(QGraphicsEffectSourcePrivate &dd, QObject *parent = nullptr);
 
 private:
     Q_DECLARE_PRIVATE(QGraphicsEffectSource)
@@ -125,7 +125,7 @@ public:
     virtual void draw(QPainter *p) = 0;
     virtual void update() = 0;
     virtual bool isPixmap() const = 0;
-    virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0,
+    virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = nullptr,
                            QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToTransparentBorder) const = 0;
     virtual void effectBoundingRectChanged() = 0;
 
@@ -149,7 +149,7 @@ class Q_WIDGETS_EXPORT QGraphicsEffectPrivate : public QObjectPrivate
 {
     Q_DECLARE_PUBLIC(QGraphicsEffect)
 public:
-    QGraphicsEffectPrivate() : source(0), isEnabled(1) {}
+    QGraphicsEffectPrivate() : source(nullptr), isEnabled(1) {}
     ~QGraphicsEffectPrivate();
 
     inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource)
diff --git a/src/widgets/effects/qpixmapfilter_p.h b/src/widgets/effects/qpixmapfilter_p.h
index 0f582bde60..c56acb8a24 100644
--- a/src/widgets/effects/qpixmapfilter_p.h
+++ b/src/widgets/effects/qpixmapfilter_p.h
@@ -100,7 +100,7 @@ class Q_WIDGETS_EXPORT QPixmapConvolutionFilter : public QPixmapFilter
     Q_DECLARE_PRIVATE(QPixmapConvolutionFilter)
 
 public:
-    QPixmapConvolutionFilter(QObject *parent = 0);
+    QPixmapConvolutionFilter(QObject *parent = nullptr);
     ~QPixmapConvolutionFilter();
 
     void setConvolutionKernel(const qreal *matrix, int rows, int columns);
@@ -124,7 +124,7 @@ class Q_WIDGETS_EXPORT QPixmapBlurFilter : public QPixmapFilter
     Q_DECLARE_PRIVATE(QPixmapBlurFilter)
 
 public:
-    QPixmapBlurFilter(QObject *parent = 0);
+    QPixmapBlurFilter(QObject *parent = nullptr);
     ~QPixmapBlurFilter();
 
     void setRadius(qreal radius);
@@ -148,7 +148,7 @@ class Q_WIDGETS_EXPORT QPixmapColorizeFilter : public QPixmapFilter
     Q_DECLARE_PRIVATE(QPixmapColorizeFilter)
 
 public:
-    QPixmapColorizeFilter(QObject *parent = 0);
+    QPixmapColorizeFilter(QObject *parent = nullptr);
     ~QPixmapColorizeFilter();
 
     void setColor(const QColor& color);
@@ -168,7 +168,7 @@ class Q_WIDGETS_EXPORT QPixmapDropShadowFilter : public QPixmapFilter
     Q_DECLARE_PRIVATE(QPixmapDropShadowFilter)
 
 public:
-    QPixmapDropShadowFilter(QObject *parent = 0);
+    QPixmapDropShadowFilter(QObject *parent = nullptr);
     ~QPixmapDropShadowFilter();
 
     QRectF boundingRectFor(const QRectF &rect) const override;
diff --git a/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp b/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
index 008560d856..4f44373cad 100644
--- a/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -2066,7 +2066,7 @@ QList<AnchorData *> getVariables(const QList<QSimplexConstraint *> &constraints)
         for (auto it = c->variables.cbegin(), end = c->variables.cend(); it != end; ++it)
             variableSet.insert(static_cast<AnchorData *>(it.key()));
     }
-    return variableSet.toList();
+    return variableSet.values();
 }
 
 /*!
diff --git a/src/widgets/graphicsview/qgraphicsanchorlayout_p.h b/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
index 699ca32bfe..b5f14948ac 100644
--- a/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
+++ b/src/widgets/graphicsview/qgraphicsanchorlayout_p.h
@@ -89,7 +89,7 @@ struct AnchorVertex {
         : m_item(item), m_edge(edge), m_type(Normal) {}
 
     AnchorVertex()
-        : m_item(0), m_edge(Qt::AnchorPoint(0)), m_type(Normal) {}
+        : m_item(nullptr), m_edge(Qt::AnchorPoint(0)), m_type(Normal) {}
 
 #ifdef QT_DEBUG
     inline QString toString() const;
@@ -123,18 +123,18 @@ struct AnchorData : public QSimplexVariable {
     };
 
     AnchorData()
-        : QSimplexVariable(), from(0), to(0),
+        : QSimplexVariable(), from(nullptr), to(nullptr),
           minSize(0), prefSize(0), maxSize(0),
           minPrefSize(0), maxPrefSize(0),
           sizeAtMinimum(0), sizeAtPreferred(0),
-          sizeAtMaximum(0), item(0), graphicsAnchor(0),
+          sizeAtMaximum(0), item(nullptr), graphicsAnchor(nullptr),
           type(Normal), isLayoutAnchor(false),
           isCenterAnchor(false), orientation(0),
           dependency(Independent) {}
     virtual ~AnchorData();
 
     virtual void updateChildrenSizes() {}
-    void refreshSizeHints(const QLayoutStyleInfo *styleInfo = 0);
+    void refreshSizeHints(const QLayoutStyleInfo *styleInfo = nullptr);
 
 #ifdef QT_DEBUG
     void dump(int indent = 2);
@@ -402,7 +402,7 @@ public:
 
     static QGraphicsAnchorLayoutPrivate *get(QGraphicsAnchorLayout *q)
     {
-        return q ? q->d_func() : 0;
+        return q ? q->d_func() : nullptr;
     }
 
     static Qt::AnchorPoint oppositeEdge(
@@ -443,7 +443,7 @@ public:
                             Qt::AnchorPoint firstEdge,
                             QGraphicsLayoutItem *secondItem,
                             Qt::AnchorPoint secondEdge,
-                            qreal *spacing = 0);
+                            qreal *spacing = nullptr);
 
     // Helper for Anchor Manipulation methods
     void addAnchor_helper(QGraphicsLayoutItem *firstItem,
diff --git a/src/widgets/graphicsview/qgraphicsgridlayoutengine_p.h b/src/widgets/graphicsview/qgraphicsgridlayoutengine_p.h
index 370df9eed7..e98160e40f 100644
--- a/src/widgets/graphicsview/qgraphicsgridlayoutengine_p.h
+++ b/src/widgets/graphicsview/qgraphicsgridlayoutengine_p.h
@@ -68,7 +68,7 @@ class QGraphicsLayoutPrivate;
 class QGraphicsGridLayoutEngineItem : public QGridLayoutItem {
 public:
     QGraphicsGridLayoutEngineItem(QGraphicsLayoutItem *item, int row, int columns, int rowSpan = 1, int columnSpan = 1,
-                            Qt::Alignment alignment = 0)
+                            Qt::Alignment alignment = nullptr)
         : QGridLayoutItem(row, columns, rowSpan, columnSpan, alignment), q_layoutItem(item) {}
 
     virtual QLayoutPolicy::Policy sizePolicy(Qt::Orientation orientation) const override
@@ -115,7 +115,7 @@ public:
     {
         const int index = indexOf(layoutItem);
         if (index < 0)
-            return 0;
+            return nullptr;
         return static_cast<QGraphicsGridLayoutEngineItem*>(q_items.at(index));
     }
 
diff --git a/src/widgets/graphicsview/qgraphicsitem_p.h b/src/widgets/graphicsview/qgraphicsitem_p.h
index 54c25bf6e1..92d85f7125 100644
--- a/src/widgets/graphicsview/qgraphicsitem_p.h
+++ b/src/widgets/graphicsview/qgraphicsitem_p.h
@@ -78,13 +78,13 @@ public:
     typedef void (*ClearFunction)(QDeclarativeListProperty<T> *);
 
     QDeclarativeListProperty()
-        : object(0), data(0), append(0), count(0), at(0), clear(0), dummy1(0), dummy2(0) {}
+        : object(nullptr), data(nullptr), append(nullptr), count(nullptr), at(nullptr), clear(nullptr), dummy1(nullptr), dummy2(nullptr) {}
     QDeclarativeListProperty(QObject *o, QList<T *> &list)
         : object(o), data(&list), append(qlist_append), count(qlist_count), at(qlist_at),
-          clear(qlist_clear), dummy1(0), dummy2(0) {}
+          clear(qlist_clear), dummy1(nullptr), dummy2(nullptr) {}
     QDeclarativeListProperty(QObject *o, void *d, AppendFunction a, CountFunction c = 0, AtFunction t = 0,
                     ClearFunction r = 0)
-        : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(0), dummy2(0) {}
+        : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(nullptr), dummy2(nullptr) {}
 
     bool operator==(const QDeclarativeListProperty &o) const {
         return object == o.object &&
@@ -198,8 +198,8 @@ public:
             || (ancestorFlags & AncestorIgnoresTransformations);
     }
 
-    void combineTransformToParent(QTransform *x, const QTransform *viewTransform = 0) const;
-    void combineTransformFromParent(QTransform *x, const QTransform *viewTransform = 0) const;
+    void combineTransformToParent(QTransform *x, const QTransform *viewTransform = nullptr) const;
+    void combineTransformFromParent(QTransform *x, const QTransform *viewTransform = nullptr) const;
     virtual void updateSceneTransformFromParent();
 
     static bool movableAncestorIsSelected(const QGraphicsItem *item);
@@ -232,7 +232,7 @@ public:
     void childrenBoundingRectHelper(QTransform *x, QRectF *rect, QGraphicsItem *topMostEffectItem);
     void initStyleOption(QStyleOptionGraphicsItem *option, const QTransform &worldTransform,
                          const QRegion &exposedRegion, bool allItems = false) const;
-    QRectF effectiveBoundingRect(QGraphicsItem *topMostEffectItem = 0) const;
+    QRectF effectiveBoundingRect(QGraphicsItem *topMostEffectItem = nullptr) const;
     QRectF sceneEffectiveBoundingRect() const;
 
     QRectF effectiveBoundingRect(const QRectF &rect) const;
@@ -408,8 +408,8 @@ public:
 
     void setFocusHelper(Qt::FocusReason focusReason, bool climb, bool focusFromHide);
     void clearFocusHelper(bool giveFocusToParent, bool hiddenByParentPanel);
-    void setSubFocus(QGraphicsItem *rootItem = 0, QGraphicsItem *stopItem = 0);
-    void clearSubFocus(QGraphicsItem *rootItem = 0, QGraphicsItem *stopItem = 0);
+    void setSubFocus(QGraphicsItem *rootItem = nullptr, QGraphicsItem *stopItem = nullptr);
+    void clearSubFocus(QGraphicsItem *rootItem = nullptr, QGraphicsItem *stopItem = nullptr);
     void resetFocusProxy();
     virtual void subFocusItemChange();
     virtual void focusScopeItemChange(bool isSubFocusItem);
@@ -541,7 +541,7 @@ struct QGraphicsItemPrivate::TransformData
         onlyTransform(true)
     { }
 
-    QTransform computedFullTransform(QTransform *postmultiplyTransform = 0) const
+    QTransform computedFullTransform(QTransform *postmultiplyTransform = nullptr) const
     {
         if (onlyTransform) {
             if (!postmultiplyTransform || postmultiplyTransform->isIdentity())
@@ -595,12 +595,12 @@ class QGraphicsItemEffectSourcePrivate : public QGraphicsEffectSourcePrivate
 {
 public:
     QGraphicsItemEffectSourcePrivate(QGraphicsItem *i)
-        : QGraphicsEffectSourcePrivate(), item(i), info(0)
+        : QGraphicsEffectSourcePrivate(), item(i), info(nullptr)
     {}
 
     void detach() override
     {
-        item->d_ptr->graphicsEffect = 0;
+        item->d_ptr->graphicsEffect = nullptr;
         item->prepareGeometryChange();
     }
 
@@ -608,7 +608,7 @@ public:
     { return item; }
 
     const QWidget *widget() const override
-    { return 0; }
+    { return nullptr; }
 
     void update() override {
         item->d_ptr->updateDueToGraphicsEffect = true;
@@ -628,7 +628,7 @@ public:
     }
 
     const QStyleOption *styleOption() const override
-    { return info ? info->option : 0; }
+    { return info ? info->option : nullptr; }
 
     QRect deviceRect() const override
     {
@@ -644,7 +644,7 @@ public:
     QPixmap pixmap(Qt::CoordinateSystem system,
                    QPoint *offset,
                    QGraphicsEffect::PixmapPadMode mode) const override;
-    QRectF paddedEffectRect(Qt::CoordinateSystem system, QGraphicsEffect::PixmapPadMode mode, const QRectF &sourceRect, bool *unpadded = 0) const;
+    QRectF paddedEffectRect(Qt::CoordinateSystem system, QGraphicsEffect::PixmapPadMode mode, const QRectF &sourceRect, bool *unpadded = nullptr) const;
 
     QGraphicsItem *item;
     QGraphicsItemPaintInfo *info;
diff --git a/src/widgets/graphicsview/qgraphicsitemanimation.cpp b/src/widgets/graphicsview/qgraphicsitemanimation.cpp
index 78b91d5c39..ad77e2f260 100644
--- a/src/widgets/graphicsview/qgraphicsitemanimation.cpp
+++ b/src/widgets/graphicsview/qgraphicsitemanimation.cpp
@@ -115,7 +115,7 @@ public:
     QGraphicsItem *item;
 
     QPointF startPos;
-    QMatrix startMatrix;
+    QTransform startTransform;
 
     qreal step;
 
@@ -294,23 +294,38 @@ QList<QPair<qreal, QPointF> > QGraphicsItemAnimation::posList() const
     return list;
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
   Returns the matrix used to transform the item at the specified \a step value.
+
+  \obsolete Use transformAt() instead
 */
 QMatrix QGraphicsItemAnimation::matrixAt(qreal step) const
 {
     check_step_valid(step, "matrixAt");
+    return transformAt(step).toAffine();
+}
+#endif
+
+/*!
+  Returns the transform used for the item at the specified \a step value.
+
+  \since 5.14
+*/
+QTransform QGraphicsItemAnimation::transformAt(qreal step) const
+{
+    check_step_valid(step, "transformAt");
 
-    QMatrix matrix;
+    QTransform transform;
     if (!d->rotation.isEmpty())
-        matrix.rotate(rotationAt(step));
+        transform.rotate(rotationAt(step));
     if (!d->verticalScale.isEmpty())
-        matrix.scale(horizontalScaleAt(step), verticalScaleAt(step));
+        transform.scale(horizontalScaleAt(step), verticalScaleAt(step));
     if (!d->verticalShear.isEmpty())
-        matrix.shear(horizontalShearAt(step), verticalShearAt(step));
+        transform.shear(horizontalShearAt(step), verticalShearAt(step));
     if (!d->xTranslation.isEmpty())
-        matrix.translate(xTranslationAt(step), yTranslationAt(step));
-    return matrix;
+        transform.translate(xTranslationAt(step), yTranslationAt(step));
+    return transform;
 }
 
 /*!
@@ -542,7 +557,7 @@ void QGraphicsItemAnimation::setStep(qreal step)
             || !d->horizontalShear.isEmpty()
             || !d->xTranslation.isEmpty()
             || !d->yTranslation.isEmpty()) {
-            d->item->setMatrix(d->startMatrix * matrixAt(step));
+            d->item->setTransform(d->startTransform * transformAt(step));
         }
     }
 
@@ -562,7 +577,7 @@ void QGraphicsItemAnimation::reset()
     if (!d->item)
         return;
     d->startPos = d->item->pos();
-    d->startMatrix = d->item->matrix();
+    d->startTransform = d->item->transform();
 }
 #endif
 
diff --git a/src/widgets/graphicsview/qgraphicsitemanimation.h b/src/widgets/graphicsview/qgraphicsitemanimation.h
index f983bd8026..3051fb2e2b 100644
--- a/src/widgets/graphicsview/qgraphicsitemanimation.h
+++ b/src/widgets/graphicsview/qgraphicsitemanimation.h
@@ -51,6 +51,7 @@ class QGraphicsItem;
 class QMatrix;
 class QPointF;
 class QTimeLine;
+class QTransform;
 template <class T1, class T2> struct QPair;
 
 class QGraphicsItemAnimationPrivate;
@@ -71,7 +72,11 @@ public:
     QList<QPair<qreal, QPointF> > posList() const;
     void setPosAt(qreal step, const QPointF &pos);
 
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use transformAt() instead")
     QMatrix matrixAt(qreal step) const;
+#endif
+    QTransform transformAt(qreal step) const;
 
     qreal rotationAt(qreal step) const;
     QList<QPair<qreal, qreal> > rotationList() const;
diff --git a/src/widgets/graphicsview/qgraphicslayout_p.h b/src/widgets/graphicsview/qgraphicslayout_p.h
index 302ad1e116..0d91151e22 100644
--- a/src/widgets/graphicsview/qgraphicslayout_p.h
+++ b/src/widgets/graphicsview/qgraphicslayout_p.h
@@ -91,7 +91,7 @@ public:
         m_defaultSpacing[1] = style->pixelMetric(QStyle::PM_LayoutVerticalSpacing);
     }
 
-    inline void invalidate() { m_valid = false; m_style = 0; m_widget = 0; }
+    inline void invalidate() { m_valid = false; m_style = nullptr; m_widget = nullptr; }
 
     inline QStyle *style() const { return m_style; }
     inline QWidget *widget() const { return m_widget; }
@@ -130,7 +130,7 @@ class Q_AUTOTEST_EXPORT QGraphicsLayoutPrivate : public QGraphicsLayoutItemPriva
     Q_DECLARE_PUBLIC(QGraphicsLayout)
 
 public:
-    QGraphicsLayoutPrivate() : QGraphicsLayoutItemPrivate(0, true), left(-1.0), top(-1.0), right(-1.0), bottom(-1.0),
+    QGraphicsLayoutPrivate() : QGraphicsLayoutItemPrivate(nullptr, true), left(-1.0), top(-1.0), right(-1.0), bottom(-1.0),
         activated(true) { }
 
     void reparentChildItems(QGraphicsItem *newParent);
diff --git a/src/widgets/graphicsview/qgraphicslayoutstyleinfo_p.h b/src/widgets/graphicsview/qgraphicslayoutstyleinfo_p.h
index c3af9f4554..9807efb26e 100644
--- a/src/widgets/graphicsview/qgraphicslayoutstyleinfo_p.h
+++ b/src/widgets/graphicsview/qgraphicslayoutstyleinfo_p.h
@@ -84,7 +84,7 @@ public:
 
     virtual void invalidate() override
     {
-        m_style = 0;
+        m_style = nullptr;
         QAbstractLayoutStyleInfo::invalidate();
     }
 
diff --git a/src/widgets/graphicsview/qgraphicsscene.cpp b/src/widgets/graphicsview/qgraphicsscene.cpp
index 3897823e98..e5bd65d61e 100644
--- a/src/widgets/graphicsview/qgraphicsscene.cpp
+++ b/src/widgets/graphicsview/qgraphicsscene.cpp
@@ -6352,7 +6352,7 @@ void QGraphicsScenePrivate::gestureEventHandler(QGestureEvent *event)
                         << "delivering override to"
                         << item.data() << gestures;
                 // send gesture override
-                QGestureEvent ev(gestures.toList());
+                QGestureEvent ev(gestures.values());
                 ev.t = QEvent::GestureOverride;
                 ev.setWidget(event->widget());
                 // mark event and individual gestures as ignored
@@ -6442,7 +6442,7 @@ void QGraphicsScenePrivate::gestureEventHandler(QGestureEvent *event)
         DEBUG() << "QGraphicsScenePrivate::gestureEventHandler:"
                 << "delivering to"
                 << receiver.data() << gestures;
-        QGestureEvent ev(gestures.toList());
+        QGestureEvent ev(gestures.values());
         ev.setWidget(event->widget());
         sendEvent(receiver.data(), &ev);
         QSet<QGesture *> ignoredGestures;
@@ -6473,7 +6473,7 @@ void QGraphicsScenePrivate::gestureEventHandler(QGestureEvent *event)
             // look for new potential targets for gestures that were ignored
             // and should be propagated.
 
-            QSet<QGraphicsObject *> targetsSet = cachedTargetItems.toSet();
+            QSet<QGraphicsObject *> targetsSet(cachedTargetItems.constBegin(), cachedTargetItems.constEnd());
 
             if (receiver) {
                 // first if the gesture should be propagated to parents only
@@ -6505,7 +6505,7 @@ void QGraphicsScenePrivate::gestureEventHandler(QGestureEvent *event)
             gestureTargetsAtHotSpots(ignoredGestures, Qt::ReceivePartialGestures,
                                      &cachedItemGestures, &targetsSet, 0, 0);
 
-            cachedTargetItems = targetsSet.toList();
+            cachedTargetItems = targetsSet.values();
             std::sort(cachedTargetItems.begin(), cachedTargetItems.end(), qt_closestItemFirst);
             DEBUG() << "QGraphicsScenePrivate::gestureEventHandler:"
                     << "new targets:" << cachedTargetItems;
@@ -6583,7 +6583,7 @@ void QGraphicsScenePrivate::cancelGesturesForChildren(QGesture *original)
         }
         Q_ASSERT(target);
 
-        const QList<QGesture *> list = gestures.toList();
+        const QList<QGesture *> list = gestures.values();
         QGestureEvent ev(list);
         sendEvent(target, &ev);
 
diff --git a/src/widgets/graphicsview/qgraphicsscene_p.h b/src/widgets/graphicsview/qgraphicsscene_p.h
index a2d13436fc..7934359cee 100644
--- a/src/widgets/graphicsview/qgraphicsscene_p.h
+++ b/src/widgets/graphicsview/qgraphicsscene_p.h
@@ -226,7 +226,7 @@ public:
 
     void drawSubtreeRecursive(QGraphicsItem *item, QPainter *painter, const QTransform *const,
                               QRegion *exposedRegion, QWidget *widget, qreal parentOpacity = qreal(1.0),
-                              const QTransform *const effectTransform = 0);
+                              const QTransform *const effectTransform = nullptr);
     void draw(QGraphicsItem *, QPainter *, const QTransform *const, const QTransform *const,
               QRegion *, QWidget *, qreal, const QTransform *const, bool, bool);
 
@@ -312,9 +312,9 @@ public:
     void gestureTargetsAtHotSpots(const QSet<QGesture *> &gestures,
                            Qt::GestureFlag flag,
                            QHash<QGraphicsObject *, QSet<QGesture *> > *targets,
-                           QSet<QGraphicsObject *> *itemsSet = 0,
-                           QSet<QGesture *> *normal = 0,
-                           QSet<QGesture *> *conflicts = 0);
+                           QSet<QGraphicsObject *> *itemsSet = nullptr,
+                           QSet<QGesture *> *normal = nullptr,
+                           QSet<QGesture *> *conflicts = nullptr);
     void cancelGesturesForChildren(QGesture *original);
     void grabGesture(QGraphicsItem *, Qt::GestureType gesture);
     void ungrabGesture(QGraphicsItem *, Qt::GestureType gesture);
diff --git a/src/widgets/graphicsview/qgraphicsscenebsptreeindex_p.h b/src/widgets/graphicsview/qgraphicsscenebsptreeindex_p.h
index eb6bbbf49b..7e0e525a6b 100644
--- a/src/widgets/graphicsview/qgraphicsscenebsptreeindex_p.h
+++ b/src/widgets/graphicsview/qgraphicsscenebsptreeindex_p.h
@@ -74,7 +74,7 @@ class Q_AUTOTEST_EXPORT QGraphicsSceneBspTreeIndex : public QGraphicsSceneIndex
     Q_OBJECT
     Q_PROPERTY(int bspTreeDepth READ bspTreeDepth WRITE setBspTreeDepth)
 public:
-    QGraphicsSceneBspTreeIndex(QGraphicsScene *scene = 0);
+    QGraphicsSceneBspTreeIndex(QGraphicsScene *scene = nullptr);
     ~QGraphicsSceneBspTreeIndex();
 
     QList<QGraphicsItem *> estimateItems(const QRectF &rect, Qt::SortOrder order) const override;
diff --git a/src/widgets/graphicsview/qgraphicssceneindex_p.h b/src/widgets/graphicsview/qgraphicssceneindex_p.h
index 86637e836b..b494c52671 100644
--- a/src/widgets/graphicsview/qgraphicssceneindex_p.h
+++ b/src/widgets/graphicsview/qgraphicssceneindex_p.h
@@ -77,7 +77,7 @@ class Q_AUTOTEST_EXPORT QGraphicsSceneIndex : public QObject
     Q_OBJECT
 
 public:
-    QGraphicsSceneIndex(QGraphicsScene *scene = 0);
+    QGraphicsSceneIndex(QGraphicsScene *scene = nullptr);
     virtual ~QGraphicsSceneIndex();
 
     QGraphicsScene *scene() const;
diff --git a/src/widgets/graphicsview/qgraphicsscenelinearindex_p.h b/src/widgets/graphicsview/qgraphicsscenelinearindex_p.h
index 07d5d80ef1..ead52c1fb0 100644
--- a/src/widgets/graphicsview/qgraphicsscenelinearindex_p.h
+++ b/src/widgets/graphicsview/qgraphicsscenelinearindex_p.h
@@ -67,7 +67,7 @@ class Q_AUTOTEST_EXPORT QGraphicsSceneLinearIndex : public QGraphicsSceneIndex
     Q_OBJECT
 
 public:
-    QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0) : QGraphicsSceneIndex(scene), m_numSortedElements(0)
+    QGraphicsSceneLinearIndex(QGraphicsScene *scene = nullptr) : QGraphicsSceneIndex(scene), m_numSortedElements(0)
     { }
 
     QList<QGraphicsItem *> items(Qt::SortOrder order = Qt::DescendingOrder) const override
diff --git a/src/widgets/graphicsview/qgraphicstransform_p.h b/src/widgets/graphicsview/qgraphicstransform_p.h
index e54ee9fb3c..05e12c3e64 100644
--- a/src/widgets/graphicsview/qgraphicstransform_p.h
+++ b/src/widgets/graphicsview/qgraphicstransform_p.h
@@ -66,7 +66,7 @@ public:
     Q_DECLARE_PUBLIC(QGraphicsTransform)
 
     QGraphicsTransformPrivate()
-        : QObjectPrivate(), item(0) {}
+        : QObjectPrivate(), item(nullptr) {}
     ~QGraphicsTransformPrivate();
 
     QGraphicsItem *item;
diff --git a/src/widgets/graphicsview/qgraphicswidget_p.h b/src/widgets/graphicsview/qgraphicswidget_p.h
index 505a2a24c0..821f8c73f1 100644
--- a/src/widgets/graphicsview/qgraphicswidget_p.h
+++ b/src/widgets/graphicsview/qgraphicswidget_p.h
@@ -82,7 +82,7 @@ public:
     mutable qreal *margins;
     void ensureMargins() const;
 
-    void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene = 0);
+    void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene = nullptr);
     void setLayout_helper(QGraphicsLayout *l);
 
     // Layouts
diff --git a/src/widgets/graphicsview/qsimplex_p.cpp b/src/widgets/graphicsview/qsimplex_p.cpp
index e6ffa856f1..e18f1fa4c4 100644
--- a/src/widgets/graphicsview/qsimplex_p.cpp
+++ b/src/widgets/graphicsview/qsimplex_p.cpp
@@ -164,7 +164,7 @@ bool QSimplex::setConstraints(const QList<QSimplexConstraint *> &newConstraints)
         for (auto it = v.cbegin(), end = v.cend(); it != end; ++it)
             variablesSet.insert(it.key());
     }
-    variables = variablesSet.toList();
+    variables = variablesSet.values();
 
     // Set Variables reverse mapping
     // We also need to be able to find the index for a given variable, to do that
diff --git a/src/widgets/graphicsview/qsimplex_p.h b/src/widgets/graphicsview/qsimplex_p.h
index 369f2f5f82..a69cef6115 100644
--- a/src/widgets/graphicsview/qsimplex_p.h
+++ b/src/widgets/graphicsview/qsimplex_p.h
@@ -82,7 +82,7 @@ struct QSimplexVariable
 */
 struct QSimplexConstraint
 {
-    QSimplexConstraint() : constant(0), ratio(Equal), artificial(0) {}
+    QSimplexConstraint() : constant(0), ratio(Equal), artificial(nullptr) {}
 
     enum Ratio {
         LessOrEqual = 0,
diff --git a/src/widgets/itemviews/qcolumnview_p.h b/src/widgets/itemviews/qcolumnview_p.h
index 7b36b1f3da..c60579255e 100644
--- a/src/widgets/itemviews/qcolumnview_p.h
+++ b/src/widgets/itemviews/qcolumnview_p.h
@@ -74,7 +74,7 @@ QT_BEGIN_NAMESPACE
 class QColumnViewPreviewColumn : public QAbstractItemView {
 
 public:
-    explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(0) {
+    explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(nullptr) {
     }
 
     void setPreviewWidget(QWidget *widget) {
@@ -186,7 +186,7 @@ class QColumnViewDelegate : public QItemDelegate
 {
 
 public:
-    explicit QColumnViewDelegate(QObject *parent = 0) : QItemDelegate(parent) {}
+    explicit QColumnViewDelegate(QObject *parent = nullptr) : QItemDelegate(parent) {}
     ~QColumnViewDelegate() {}
 
     void paint(QPainter *painter,
diff --git a/src/widgets/itemviews/qcolumnviewgrip_p.h b/src/widgets/itemviews/qcolumnviewgrip_p.h
index 5eb8012204..4311edbeb4 100644
--- a/src/widgets/itemviews/qcolumnviewgrip_p.h
+++ b/src/widgets/itemviews/qcolumnviewgrip_p.h
@@ -68,12 +68,12 @@ Q_SIGNALS:
     void gripMoved(int offset);
 
 public:
-    explicit QColumnViewGrip(QWidget *parent = 0);
+    explicit QColumnViewGrip(QWidget *parent = nullptr);
     ~QColumnViewGrip();
     int moveGrip(int offset);
 
 protected:
-    QColumnViewGrip(QColumnViewGripPrivate &, QWidget *parent = 0, Qt::WindowFlags f = 0);
+    QColumnViewGrip(QColumnViewGripPrivate &, QWidget *parent = nullptr, Qt::WindowFlags f = nullptr);
     void paintEvent(QPaintEvent *event) override;
     void mouseDoubleClickEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
diff --git a/src/widgets/itemviews/qheaderview_p.h b/src/widgets/itemviews/qheaderview_p.h
index d9fc1baec5..766adef36d 100644
--- a/src/widgets/itemviews/qheaderview_p.h
+++ b/src/widgets/itemviews/qheaderview_p.h
@@ -102,7 +102,7 @@ public:
           lastSectionLogicalIdx(-1), // Only trust when we stretch last section
           sectionIndicatorOffset(0),
 #if QT_CONFIG(label)
-          sectionIndicator(0),
+          sectionIndicator(nullptr),
 #endif
           globalResizeMode(QHeaderView::Interactive),
           sectionStartposRecalc(true),
diff --git a/src/widgets/itemviews/qlistview_p.h b/src/widgets/itemviews/qlistview_p.h
index c6810f8fdc..86331bb862 100644
--- a/src/widgets/itemviews/qlistview_p.h
+++ b/src/widgets/itemviews/qlistview_p.h
@@ -248,7 +248,7 @@ private:
 class QIconModeViewBase : public QCommonListViewBase
 {
 public:
-    QIconModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d), interSectingVector(0) {}
+    QIconModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d), interSectingVector(nullptr) {}
 
     QBspTree tree;
     QVector<QListViewItem> items;
diff --git a/src/widgets/itemviews/qtableview.cpp b/src/widgets/itemviews/qtableview.cpp
index d4a6433c4d..0e03ff2a97 100644
--- a/src/widgets/itemviews/qtableview.cpp
+++ b/src/widgets/itemviews/qtableview.cpp
@@ -191,7 +191,7 @@ QList<QSpanCollection::Span *> QSpanCollection::spansInRect(int x, int y, int w,
             break;
         --it_y;
     }
-    return list.toList();
+    return list.values();
 }
 
 #undef DEBUG_SPAN_UPDATE
@@ -210,7 +210,7 @@ QDebug operator<<(QDebug str, const QSpanCollection::Span &span)
 void QSpanCollection::updateInsertedRows(int start, int end)
 {
 #ifdef DEBUG_SPAN_UPDATE
-    qDebug() << start << end << endl << index;
+    qDebug() << start << end << Qt::endl << index;
 #endif
     if (spans.isEmpty())
         return;
@@ -258,7 +258,7 @@ void QSpanCollection::updateInsertedRows(int start, int end)
 void QSpanCollection::updateInsertedColumns(int start, int end)
 {
 #ifdef DEBUG_SPAN_UPDATE
-    qDebug() << start << end << endl << index;
+    qDebug() << start << end << Qt::endl << index;
 #endif
     if (spans.isEmpty())
         return;
@@ -339,7 +339,7 @@ bool QSpanCollection::cleanSpanSubIndex(QSpanCollection::SubIndex &subindex, int
 void QSpanCollection::updateRemovedRows(int start, int end)
 {
 #ifdef DEBUG_SPAN_UPDATE
-    qDebug() << start << end << endl << index;
+    qDebug() << start << end << Qt::endl << index;
 #endif
     if (spans.isEmpty())
         return;
@@ -466,7 +466,7 @@ void QSpanCollection::updateRemovedRows(int start, int end)
 void QSpanCollection::updateRemovedColumns(int start, int end)
 {
 #ifdef DEBUG_SPAN_UPDATE
-    qDebug() << start << end << endl << index;
+    qDebug() << start << end << Qt::endl << index;
 #endif
     if (spans.isEmpty())
         return;
@@ -875,7 +875,7 @@ void QTableViewPrivate::drawAndClipSpans(const QRegion &area, QPainter *painter,
             for(int y = firstVisualRow; y <= lastVisualRow; y++)
                 set.insert(spans.spanAt(x,y));
         set.remove(0);
-        visibleSpans = set.toList();
+        visibleSpans = set.values();
     }
 
     for (QSpanCollection::Span *span : qAsConst(visibleSpans)) {
diff --git a/src/widgets/itemviews/qtableview_p.h b/src/widgets/itemviews/qtableview_p.h
index d55462c28b..f629dfcd09 100644
--- a/src/widgets/itemviews/qtableview_p.h
+++ b/src/widgets/itemviews/qtableview_p.h
@@ -137,7 +137,7 @@ public:
         : showGrid(true), gridStyle(Qt::SolidLine),
           rowSectionAnchor(-1), columnSectionAnchor(-1),
           columnResizeTimerID(0), rowResizeTimerID(0),
-          horizontalHeader(0), verticalHeader(0),
+          horizontalHeader(nullptr), verticalHeader(nullptr),
           sortingEnabled(false), geometryRecursionBlock(false),
           visualCursor(QPoint())
  {
diff --git a/src/widgets/itemviews/qtreeview_p.h b/src/widgets/itemviews/qtreeview_p.h
index 9666a9f8c2..836d8f0c2d 100644
--- a/src/widgets/itemviews/qtreeview_p.h
+++ b/src/widgets/itemviews/qtreeview_p.h
@@ -87,7 +87,7 @@ public:
 
     QTreeViewPrivate()
         : QAbstractItemViewPrivate(),
-          header(0), indent(20), lastViewedItem(0), defaultItemHeight(-1),
+          header(nullptr), indent(20), lastViewedItem(0), defaultItemHeight(-1),
           uniformRowHeights(false), rootDecoration(true),
           itemsExpandable(true), sortingEnabled(false),
           expandsOnDoubleClick(true),
@@ -157,7 +157,7 @@ public:
     bool checkViewItems() const;
 #endif
 
-    int firstVisibleItem(int *offset = 0) const;
+    int firstVisibleItem(int *offset = nullptr) const;
     int lastVisibleItem(int firstVisual = -1, int offset = -1) const;
     int columnAt(int x) const;
     bool hasVisibleChildren( const QModelIndex& parent) const;
diff --git a/src/widgets/itemviews/qtreewidget_p.h b/src/widgets/itemviews/qtreewidget_p.h
index ee4a633468..81e7e86203 100644
--- a/src/widgets/itemviews/qtreewidget_p.h
+++ b/src/widgets/itemviews/qtreewidget_p.h
@@ -78,7 +78,7 @@ class QTreeModel : public QAbstractItemModel
     friend class QTreeWidgetItemIteratorPrivate;
 
 public:
-    explicit QTreeModel(int columns = 0, QTreeWidget *parent = 0);
+    explicit QTreeModel(int columns = 0, QTreeWidget *parent = nullptr);
     ~QTreeModel();
 
     inline QTreeWidget *view() const
@@ -140,7 +140,7 @@ public:
     { return createIndex(row, col, item); }
 
 protected:
-    QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = 0);
+    QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = nullptr);
     void emitDataChanged(QTreeWidgetItem *item, int column, const QVector<int> &roles);
     void beginInsertItems(QTreeWidgetItem *parent, int row, int count);
     void endInsertItems();
diff --git a/src/widgets/kernel/mac.pri b/src/widgets/kernel/mac.pri
index f7e7aa869a..d21e5d4a74 100644
--- a/src/widgets/kernel/mac.pri
+++ b/src/widgets/kernel/mac.pri
@@ -1,4 +1 @@
-macos {
-   LIBS_PRIVATE += -framework AppKit -lz
-   *-mwerks:INCLUDEPATH += compat
-}
+macos: LIBS_PRIVATE += -framework AppKit -lz
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index 8f339a23f6..ba8878be57 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -575,10 +575,6 @@ void QApplicationPrivate::init()
     initialize();
     eventDispatcher->startingUp();
 
-#ifdef QT_EVAL
-    extern void qt_gui_eval_init(QCoreApplicationPrivate::Type);
-    qt_gui_eval_init(application_type);
-#endif
 #ifndef QT_NO_ACCESSIBILITY
     // factory for accessible interfaces for widgets shipped with Qt
     QAccessible::installFactory(&qAccessibleFactory);
@@ -1725,7 +1721,7 @@ QWidgetList QApplication::topLevelWidgets()
 QWidgetList QApplication::allWidgets()
 {
     if (QWidgetPrivate::allWidgets)
-        return QWidgetPrivate::allWidgets->toList();
+        return QWidgetPrivate::allWidgets->values();
     return QWidgetList();
 }
 
diff --git a/src/widgets/kernel/qapplication_p.h b/src/widgets/kernel/qapplication_p.h
index 133279f977..98eb9b73c6 100644
--- a/src/widgets/kernel/qapplication_p.h
+++ b/src/widgets/kernel/qapplication_p.h
@@ -128,10 +128,10 @@ public:
     void notifyWindowIconChanged() override;
 
     //modality
-    bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = 0) const override;
+    bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = nullptr) const override;
     static bool isBlockedByModal(QWidget *widget);
     static bool modalState();
-    static bool tryModalHelper(QWidget *widget, QWidget **rettop = 0);
+    static bool tryModalHelper(QWidget *widget, QWidget **rettop = nullptr);
 #if 0 // Used to be included in Qt4 for Q_WS_MAC
     static QWidget *tryModalHelper_sys(QWidget *top);
     bool canQuit();
@@ -157,7 +157,7 @@ public:
     void openPopup(QWidget *popup);
     static void setFocusWidget(QWidget *focus, Qt::FocusReason reason);
     static QWidget *focusNextPrevChild_helper(QWidget *toplevel, bool next,
-                                              bool *wrappingOccurred = 0);
+                                              bool *wrappingOccurred = nullptr);
 
 #if QT_CONFIG(graphicsview)
     // Maintain a list of all scenes to ensure font and palette propagation to
@@ -238,7 +238,7 @@ public:
             return window;
         if (const QWidget *nativeParent = widget->nativeParentWidget())
             return nativeParent->windowHandle();
-        return 0;
+        return nullptr;
     }
 
 #ifdef Q_OS_WIN
diff --git a/src/widgets/kernel/qformlayout.cpp b/src/widgets/kernel/qformlayout.cpp
index bd0ea2598a..9146ba84c8 100644
--- a/src/widgets/kernel/qformlayout.cpp
+++ b/src/widgets/kernel/qformlayout.cpp
@@ -783,7 +783,7 @@ void QFormLayoutPrivate::setupVerticalLayoutData(int width)
             vLayouts[vidx].expansive = expanding || (vLayouts[vidx].stretch > 0);
             vLayouts[vidx].empty = false;
 
-            if (vLayouts[vidx].stretch > 0)
+            if (vLayouts[vidx].expansive)
                 addTopBottomStretch = false;
 
             if (vidx > 1)
diff --git a/src/widgets/kernel/qgesture_p.h b/src/widgets/kernel/qgesture_p.h
index 636103c1e1..cbf8d60892 100644
--- a/src/widgets/kernel/qgesture_p.h
+++ b/src/widgets/kernel/qgesture_p.h
@@ -111,7 +111,7 @@ class QPinchGesturePrivate : public QGesturePrivate
 
 public:
     QPinchGesturePrivate()
-        : totalChangeFlags(0), changeFlags(0),
+        : totalChangeFlags(nullptr), changeFlags(nullptr),
           totalScaleFactor(1), lastScaleFactor(1), scaleFactor(1),
           totalRotationAngle(0), lastRotationAngle(0), rotationAngle(0),
           isNewSequence(true)
diff --git a/src/widgets/kernel/qgesturemanager.cpp b/src/widgets/kernel/qgesturemanager.cpp
index cd27c9c5be..390602205c 100644
--- a/src/widgets/kernel/qgesturemanager.cpp
+++ b/src/widgets/kernel/qgesturemanager.cpp
@@ -171,7 +171,7 @@ void QGestureManager::cleanupCachedGestures(QObject *target, Qt::GestureType typ
     while (iter != m_objectGestures.end()) {
         ObjectGesture objectGesture = iter.key();
         if (objectGesture.gesture == type && target == objectGesture.object) {
-            QSet<QGesture *> gestures = iter.value().toSet();
+            QSet<QGesture *> gestures = QSet<QGesture *>(iter.value().constBegin(), iter.value().constEnd());
             for (QHash<QGestureRecognizer *, QSet<QGesture *> >::iterator
                  it = m_obsoleteGestures.begin(), e = m_obsoleteGestures.end(); it != e; ++it) {
                 it.value() -= gestures;
diff --git a/src/widgets/kernel/qlayout.cpp b/src/widgets/kernel/qlayout.cpp
index 53c4de49c6..f71d038a5f 100644
--- a/src/widgets/kernel/qlayout.cpp
+++ b/src/widgets/kernel/qlayout.cpp
@@ -1156,6 +1156,8 @@ QLayoutItem *QLayout::replaceWidget(QWidget *from, QWidget *to, Qt::FindChildOpt
     Q_D(QLayout);
     if (!from || !to)
         return 0;
+    if (from == to)     // Do not return a QLayoutItem for \a from, since ownership still
+        return nullptr; // belongs to the layout (since nothing was changed)
 
     int index = -1;
     QLayoutItem *item = 0;
diff --git a/src/widgets/kernel/qlayout_p.h b/src/widgets/kernel/qlayout_p.h
index 8a1b12a6be..8e1d773355 100644
--- a/src/widgets/kernel/qlayout_p.h
+++ b/src/widgets/kernel/qlayout_p.h
@@ -80,7 +80,7 @@ public:
 
     static QWidgetItem *createWidgetItem(const QLayout *layout, QWidget *widget);
     static QSpacerItem *createSpacerItem(const QLayout *layout, int w, int h, QSizePolicy::Policy hPolicy = QSizePolicy::Minimum, QSizePolicy::Policy vPolicy = QSizePolicy::Minimum);
-    virtual QLayoutItem* replaceAt(int index, QLayoutItem *newitem) { Q_UNUSED(index); Q_UNUSED(newitem); return 0; }
+    virtual QLayoutItem* replaceAt(int index, QLayoutItem *newitem) { Q_UNUSED(index); Q_UNUSED(newitem); return nullptr; }
 
     static QWidgetItemFactoryMethod widgetItemFactoryMethod;
     static QSpacerItemFactoryMethod spacerItemFactoryMethod;
diff --git a/src/widgets/kernel/qlayoutengine_p.h b/src/widgets/kernel/qlayoutengine_p.h
index 812fa7cf3b..948c2424e6 100644
--- a/src/widgets/kernel/qlayoutengine_p.h
+++ b/src/widgets/kernel/qlayoutengine_p.h
@@ -105,9 +105,9 @@ Q_WIDGETS_EXPORT QSize qSmartMinSize(const QWidgetItem *i);
 Q_WIDGETS_EXPORT QSize qSmartMinSize(const QWidget *w);
 Q_WIDGETS_EXPORT QSize qSmartMaxSize(const QSize &sizeHint,
                                  const QSize &minSize, const QSize &maxSize,
-                                 const QSizePolicy &sizePolicy, Qt::Alignment align = 0);
-Q_WIDGETS_EXPORT QSize qSmartMaxSize(const QWidgetItem *i, Qt::Alignment align = 0);
-Q_WIDGETS_EXPORT QSize qSmartMaxSize(const QWidget *w, Qt::Alignment align = 0);
+                                 const QSizePolicy &sizePolicy, Qt::Alignment align = nullptr);
+Q_WIDGETS_EXPORT QSize qSmartMaxSize(const QWidgetItem *i, Qt::Alignment align = nullptr);
+Q_WIDGETS_EXPORT QSize qSmartMaxSize(const QWidget *w, Qt::Alignment align = nullptr);
 
 Q_WIDGETS_EXPORT int qSmartSpacing(const QLayout *layout, QStyle::PixelMetric pm);
 
diff --git a/src/widgets/kernel/qlayoutitem.cpp b/src/widgets/kernel/qlayoutitem.cpp
index 9e6d1c5eac..0aab0bb06d 100644
--- a/src/widgets/kernel/qlayoutitem.cpp
+++ b/src/widgets/kernel/qlayoutitem.cpp
@@ -502,6 +502,17 @@ void QWidgetItem::setGeometry(const QRect &rect)
     else if (!(align & Qt::AlignTop))
         y = y + (r.height() - s.height()) / 2;
 
+    // Make sure we don't move outside of the parent, e.g when styles demand
+    // surplus space that exceeds the available margins (f.ex macOS with QGroupBox)
+    if (x < 0) {
+        s.rwidth() += x;
+        x = 0;
+    }
+    if (y < 0) {
+        s.rheight() += y;
+        y = 0;
+    }
+
     wid->setGeometry(x, y, s.width(), s.height());
 }
 
diff --git a/src/widgets/kernel/qsizepolicy.cpp b/src/widgets/kernel/qsizepolicy.cpp
index b5a0cd3940..54bf8fe0dc 100644
--- a/src/widgets/kernel/qsizepolicy.cpp
+++ b/src/widgets/kernel/qsizepolicy.cpp
@@ -232,7 +232,7 @@ QT_BEGIN_NAMESPACE
     Returns the control type associated with the widget for which
     this size policy applies.
 */
-QSizePolicy::ControlType QSizePolicy::controlType() const Q_DECL_NOTHROW
+QSizePolicy::ControlType QSizePolicy::controlType() const noexcept
 {
     return QSizePolicy::ControlType(1 << bits.ctype);
 }
@@ -253,7 +253,7 @@ QSizePolicy::ControlType QSizePolicy::controlType() const Q_DECL_NOTHROW
 
     \sa QStyle::layoutSpacing()
 */
-void QSizePolicy::setControlType(ControlType type) Q_DECL_NOTHROW
+void QSizePolicy::setControlType(ControlType type) noexcept
 {
     bits.ctype = toControlTypeFieldValue(type);
 }
diff --git a/src/widgets/kernel/qsizepolicy.h b/src/widgets/kernel/qsizepolicy.h
index dba742dec5..f26923eeb0 100644
--- a/src/widgets/kernel/qsizepolicy.h
+++ b/src/widgets/kernel/qsizepolicy.h
@@ -65,7 +65,7 @@ QT_BEGIN_NAMESPACE
 class QVariant;
 class QSizePolicy;
 
-Q_DECL_CONST_FUNCTION inline uint qHash(QSizePolicy key, uint seed = 0) Q_DECL_NOTHROW;
+Q_DECL_CONST_FUNCTION inline uint qHash(QSizePolicy key, uint seed = 0) noexcept;
 
 class Q_WIDGETS_EXPORT QSizePolicy
 {
@@ -110,60 +110,60 @@ public:
     Q_DECLARE_FLAGS(ControlTypes, ControlType)
     Q_FLAG(ControlTypes)
 
-    QT_SIZEPOLICY_CONSTEXPR QSizePolicy() Q_DECL_NOTHROW : data(0) { }
+    QT_SIZEPOLICY_CONSTEXPR QSizePolicy() noexcept : data(0) { }
 
 #if defined(Q_COMPILER_UNIFORM_INIT) && !defined(Q_QDOC)
-    QT_SIZEPOLICY_CONSTEXPR QSizePolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType) Q_DECL_NOTHROW
+    QT_SIZEPOLICY_CONSTEXPR QSizePolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType) noexcept
         : bits{0, 0, quint32(horizontal), quint32(vertical),
                type == DefaultType ? 0 : toControlTypeFieldValue(type), 0, 0, 0}
     {}
 #else
-    QSizePolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType) Q_DECL_NOTHROW
+    QSizePolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType) noexcept
         : data(0) {
         bits.horPolicy = horizontal;
         bits.verPolicy = vertical;
         setControlType(type);
     }
 #endif // uniform-init
-    QT_SIZEPOLICY_CONSTEXPR Policy horizontalPolicy() const Q_DECL_NOTHROW { return static_cast<Policy>(bits.horPolicy); }
-    QT_SIZEPOLICY_CONSTEXPR Policy verticalPolicy() const Q_DECL_NOTHROW { return static_cast<Policy>(bits.verPolicy); }
-    ControlType controlType() const Q_DECL_NOTHROW;
+    QT_SIZEPOLICY_CONSTEXPR Policy horizontalPolicy() const noexcept { return static_cast<Policy>(bits.horPolicy); }
+    QT_SIZEPOLICY_CONSTEXPR Policy verticalPolicy() const noexcept { return static_cast<Policy>(bits.verPolicy); }
+    ControlType controlType() const noexcept;
 
-    Q_DECL_RELAXED_CONSTEXPR void setHorizontalPolicy(Policy d) Q_DECL_NOTHROW { bits.horPolicy = d; }
-    Q_DECL_RELAXED_CONSTEXPR void setVerticalPolicy(Policy d) Q_DECL_NOTHROW { bits.verPolicy = d; }
-    void setControlType(ControlType type) Q_DECL_NOTHROW;
+    Q_DECL_RELAXED_CONSTEXPR void setHorizontalPolicy(Policy d) noexcept { bits.horPolicy = d; }
+    Q_DECL_RELAXED_CONSTEXPR void setVerticalPolicy(Policy d) noexcept { bits.verPolicy = d; }
+    void setControlType(ControlType type) noexcept;
 
-    QT_SIZEPOLICY_CONSTEXPR Qt::Orientations expandingDirections() const Q_DECL_NOTHROW {
+    QT_SIZEPOLICY_CONSTEXPR Qt::Orientations expandingDirections() const noexcept {
         return ( (verticalPolicy()   & ExpandFlag) ? Qt::Vertical   : Qt::Orientations() )
              | ( (horizontalPolicy() & ExpandFlag) ? Qt::Horizontal : Qt::Orientations() ) ;
     }
 
-    Q_DECL_RELAXED_CONSTEXPR void setHeightForWidth(bool b) Q_DECL_NOTHROW { bits.hfw = b;  }
-    QT_SIZEPOLICY_CONSTEXPR bool hasHeightForWidth() const Q_DECL_NOTHROW { return bits.hfw; }
-    Q_DECL_RELAXED_CONSTEXPR void setWidthForHeight(bool b) Q_DECL_NOTHROW { bits.wfh = b;  }
-    QT_SIZEPOLICY_CONSTEXPR bool hasWidthForHeight() const Q_DECL_NOTHROW { return bits.wfh; }
+    Q_DECL_RELAXED_CONSTEXPR void setHeightForWidth(bool b) noexcept { bits.hfw = b;  }
+    QT_SIZEPOLICY_CONSTEXPR bool hasHeightForWidth() const noexcept { return bits.hfw; }
+    Q_DECL_RELAXED_CONSTEXPR void setWidthForHeight(bool b) noexcept { bits.wfh = b;  }
+    QT_SIZEPOLICY_CONSTEXPR bool hasWidthForHeight() const noexcept { return bits.wfh; }
 
-    QT_SIZEPOLICY_CONSTEXPR bool operator==(const QSizePolicy& s) const Q_DECL_NOTHROW { return data == s.data; }
-    QT_SIZEPOLICY_CONSTEXPR bool operator!=(const QSizePolicy& s) const Q_DECL_NOTHROW { return data != s.data; }
+    QT_SIZEPOLICY_CONSTEXPR bool operator==(const QSizePolicy& s) const noexcept { return data == s.data; }
+    QT_SIZEPOLICY_CONSTEXPR bool operator!=(const QSizePolicy& s) const noexcept { return data != s.data; }
 
-    friend Q_DECL_CONST_FUNCTION uint qHash(QSizePolicy key, uint seed) Q_DECL_NOTHROW { return qHash(key.data, seed); }
+    friend Q_DECL_CONST_FUNCTION uint qHash(QSizePolicy key, uint seed) noexcept { return qHash(key.data, seed); }
 
     operator QVariant() const;
 
-    QT_SIZEPOLICY_CONSTEXPR int horizontalStretch() const Q_DECL_NOTHROW { return static_cast<int>(bits.horStretch); }
-    QT_SIZEPOLICY_CONSTEXPR int verticalStretch() const Q_DECL_NOTHROW { return static_cast<int>(bits.verStretch); }
+    QT_SIZEPOLICY_CONSTEXPR int horizontalStretch() const noexcept { return static_cast<int>(bits.horStretch); }
+    QT_SIZEPOLICY_CONSTEXPR int verticalStretch() const noexcept { return static_cast<int>(bits.verStretch); }
     Q_DECL_RELAXED_CONSTEXPR void setHorizontalStretch(int stretchFactor) { bits.horStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
     Q_DECL_RELAXED_CONSTEXPR void setVerticalStretch(int stretchFactor) { bits.verStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
 
-    QT_SIZEPOLICY_CONSTEXPR bool retainSizeWhenHidden() const Q_DECL_NOTHROW { return bits.retainSizeWhenHidden; }
-    Q_DECL_RELAXED_CONSTEXPR void setRetainSizeWhenHidden(bool retainSize) Q_DECL_NOTHROW { bits.retainSizeWhenHidden = retainSize; }
+    QT_SIZEPOLICY_CONSTEXPR bool retainSizeWhenHidden() const noexcept { return bits.retainSizeWhenHidden; }
+    Q_DECL_RELAXED_CONSTEXPR void setRetainSizeWhenHidden(bool retainSize) noexcept { bits.retainSizeWhenHidden = retainSize; }
 
-    Q_DECL_RELAXED_CONSTEXPR void transpose() Q_DECL_NOTHROW { *this = transposed(); }
+    Q_DECL_RELAXED_CONSTEXPR void transpose() noexcept { *this = transposed(); }
     Q_REQUIRED_RESULT
 #ifndef Q_QDOC
     QT_SIZEPOLICY_CONSTEXPR_AND_UNIFORM_INIT
 #endif
-    QSizePolicy transposed() const Q_DECL_NOTHROW
+    QSizePolicy transposed() const noexcept
     {
         return QSizePolicy(bits.transposed());
     }
@@ -173,11 +173,11 @@ private:
     friend Q_WIDGETS_EXPORT QDataStream &operator<<(QDataStream &, const QSizePolicy &);
     friend Q_WIDGETS_EXPORT QDataStream &operator>>(QDataStream &, QSizePolicy &);
 #endif
-    QT_SIZEPOLICY_CONSTEXPR QSizePolicy(int i) Q_DECL_NOTHROW : data(i) { }
+    QT_SIZEPOLICY_CONSTEXPR QSizePolicy(int i) noexcept : data(i) { }
     struct Bits;
-    QT_SIZEPOLICY_CONSTEXPR explicit QSizePolicy(Bits b) Q_DECL_NOTHROW : bits(b) { }
+    QT_SIZEPOLICY_CONSTEXPR explicit QSizePolicy(Bits b) noexcept : bits(b) { }
 
-    static Q_DECL_RELAXED_CONSTEXPR quint32 toControlTypeFieldValue(ControlType type) Q_DECL_NOTHROW
+    static Q_DECL_RELAXED_CONSTEXPR quint32 toControlTypeFieldValue(ControlType type) noexcept
     {
         /*
           The control type is a flag type, with values 0x1, 0x2, 0x4, 0x8, 0x10,
@@ -207,7 +207,7 @@ private:
         quint32 retainSizeWhenHidden : 1;
 
         QT_SIZEPOLICY_CONSTEXPR_AND_UNIFORM_INIT
-        Bits transposed() const Q_DECL_NOTHROW
+        Bits transposed() const noexcept
         {
             return {verStretch, // \ swap
                     horStretch, // /
diff --git a/src/widgets/kernel/qtooltip.h b/src/widgets/kernel/qtooltip.h
index edf1de0c1d..1b263a6629 100644
--- a/src/widgets/kernel/qtooltip.h
+++ b/src/widgets/kernel/qtooltip.h
@@ -50,7 +50,7 @@ QT_BEGIN_NAMESPACE
 
 class Q_WIDGETS_EXPORT QToolTip
 {
-    QToolTip() Q_DECL_EQ_DELETE;
+    QToolTip() = delete;
 public:
     // ### Qt 6 - merge the three showText functions below
     static void showText(const QPoint &pos, const QString &text, QWidget *w = nullptr);
diff --git a/src/widgets/kernel/qwhatsthis.h b/src/widgets/kernel/qwhatsthis.h
index 59c0b01c9b..fa5b97d98a 100644
--- a/src/widgets/kernel/qwhatsthis.h
+++ b/src/widgets/kernel/qwhatsthis.h
@@ -54,7 +54,7 @@ class QAction;
 
 class Q_WIDGETS_EXPORT QWhatsThis
 {
-    QWhatsThis() Q_DECL_EQ_DELETE;
+    QWhatsThis() = delete;
 
 public:
     static void enterWhatsThisMode();
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 89a8a7be0f..af862e08a2 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1348,11 +1348,6 @@ void QWidget::create(WId window, bool initializeWindow, bool destroyOldWindow)
     if (!isWindow() && parentWidget() && parentWidget()->testAttribute(Qt::WA_DropSiteRegistered))
         setAttribute(Qt::WA_DropSiteRegistered, true);
 
-#ifdef QT_EVAL
-    extern void qt_eval_init_widget(QWidget *w);
-    qt_eval_init_widget(this);
-#endif
-
     // need to force the resting of the icon after changing parents
     if (testAttribute(Qt::WA_SetWindowIcon))
         d->setWindowIcon_sys();
@@ -6059,13 +6054,7 @@ QString qt_setWindowTitle_helperHelper(const QString &title, const QWidget *widg
 {
     Q_ASSERT(widget);
 
-#ifdef QT_EVAL
-    extern QString qt_eval_adapt_window_title(const QString &title);
-    QString cap = qt_eval_adapt_window_title(title);
-#else
     QString cap = title;
-#endif
-
     if (cap.isEmpty())
         return cap;
 
@@ -10165,7 +10154,11 @@ void QWidget::hideEvent(QHideEvent *)
     \endtable
 */
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWidget::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QWidget::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
 {
     Q_UNUSED(eventType);
     Q_UNUSED(message);
@@ -13187,7 +13180,7 @@ QDebug operator<<(QDebug debug, const QWidget *widget)
             if (widget->isWindow())
                 debug << ", window";
             debug << ", " << geometry.width() << 'x' << geometry.height()
-                << forcesign << geometry.x() << geometry.y() << noforcesign;
+                << Qt::forcesign << geometry.x() << geometry.y() << Qt::noforcesign;
             if (frameGeometry != geometry) {
                 const QMargins margins(geometry.x() - frameGeometry.x(),
                                        geometry.y() - frameGeometry.y(),
@@ -13197,7 +13190,7 @@ QDebug operator<<(QDebug debug, const QWidget *widget)
             }
             debug << ", devicePixelRatio=" << widget->devicePixelRatioF();
             if (const WId wid = widget->internalWinId())
-                debug << ", winId=0x" << hex << wid << dec;
+                debug << ", winId=0x" << Qt::hex << wid << Qt::dec;
         }
         debug << ')';
     } else {
diff --git a/src/widgets/kernel/qwidget.h b/src/widgets/kernel/qwidget.h
index 4e5ef5a111..e47deb5d0d 100644
--- a/src/widgets/kernel/qwidget.h
+++ b/src/widgets/kernel/qwidget.h
@@ -555,7 +555,7 @@ public:
     void addAction(QAction *action);
 #if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
     void addActions(const QList<QAction*> &actions);
-    void insertActions(const QAction *before, const QList<QAction*> &actions);
+    void insertActions(QAction *before, const QList<QAction*> &actions);
 #else
     void addActions(QList<QAction*> actions);
     void insertActions(QAction *before, QList<QAction*> actions);
@@ -648,7 +648,12 @@ protected:
 
     virtual void showEvent(QShowEvent *event);
     virtual void hideEvent(QHideEvent *event);
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    virtual bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
     virtual bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
 
     // Misc. protected functions
     virtual void changeEvent(QEvent *);
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index 797963b931..90c4c2a945 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -146,7 +146,7 @@ public:
 
     inline operator bool() const
     {
-        return (0 != m_ptr);
+        return (nullptr != m_ptr);
     }
 
 private:
@@ -411,7 +411,7 @@ public:
     void render(QPaintDevice *target, const QPoint &targetOffset, const QRegion &sourceRegion,
                 QWidget::RenderFlags renderFlags);
     void drawWidget(QPaintDevice *pdev, const QRegion &rgn, const QPoint &offset, int flags,
-                    QPainter *sharedPainter = 0, QWidgetBackingStore *backingStore = 0);
+                    QPainter *sharedPainter = nullptr, QWidgetBackingStore *backingStore = nullptr);
     void sendPaintEvent(const QRegion &toBePainted);
 
 
@@ -428,7 +428,7 @@ public:
     QRegion clipRegion() const;
     void setSystemClip(QPaintEngine *paintEngine, qreal devicePixelRatio, const QRegion &region);
     void subtractOpaqueChildren(QRegion &rgn, const QRect &clipRect) const;
-    void subtractOpaqueSiblings(QRegion &source, bool *hasDirtySiblingsAbove = 0,
+    void subtractOpaqueSiblings(QRegion &source, bool *hasDirtySiblingsAbove = nullptr,
                                 bool alsoNonOpaque = false) const;
     void clipToEffectiveMask(QRegion &region) const;
     void updateIsOpaque();
@@ -525,7 +525,7 @@ public:
 
     void getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const;
     void setLayoutItemMargins(int left, int top, int right, int bottom);
-    void setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt = 0);
+    void setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt = nullptr);
 
     void updateContentsRect();
     QMargins safeAreaMargins() const;
@@ -555,7 +555,7 @@ public:
         QGraphicsProxyWidget *ancestorProxy = widget->d_func()->nearestGraphicsProxyWidget(widget);
         //It's embedded if it has an ancestor
         if (ancestorProxy) {
-            if (!bypassGraphicsProxyWidget(widget) && ancestorProxy->scene() != 0) {
+            if (!bypassGraphicsProxyWidget(widget) && ancestorProxy->scene() != nullptr) {
                 // One view, let be smart and return the viewport rect then the popup is aligned
                 if (ancestorProxy->scene()->views().size() == 1) {
                     QGraphicsView *view = ancestorProxy->scene()->views().at(0);
@@ -586,7 +586,7 @@ public:
     }
 
     inline void restoreRedirected()
-    { redirectDev = 0; }
+    { redirectDev = nullptr; }
 
     inline void enforceNativeChildren()
     {
@@ -652,7 +652,7 @@ public:
 
     QOpenGLContext *shareContext() const;
 
-    virtual QObject *focusObject() { return 0; }
+    virtual QObject *focusObject() { return nullptr; }
 
 #ifndef QT_NO_OPENGL
     virtual GLuint textureId() const { return 0; }
@@ -660,7 +660,7 @@ public:
         Q_Q(QWidget);
         return q->testAttribute(Qt::WA_AlwaysStackOnTop)
             ? QPlatformTextureList::StacksOnTop
-            : QPlatformTextureList::Flags(0);
+            : QPlatformTextureList::Flags(nullptr);
     }
     virtual QImage grabFramebuffer() { return QImage(); }
     virtual void beginBackingStorePainting() { }
@@ -904,7 +904,7 @@ struct QWidgetPaintContext
 {
     inline QWidgetPaintContext(QPaintDevice *d, const QRegion &r, const QPoint &o, int f,
                                QPainter *p, QWidgetBackingStore *b)
-        : pdev(d), rgn(r), offset(o), flags(f), sharedPainter(p), backingStore(b), painter(0) {}
+        : pdev(d), rgn(r), offset(o), flags(f), sharedPainter(p), backingStore(b), painter(nullptr) {}
 
     QPaintDevice *pdev;
     QRegion rgn;
@@ -920,14 +920,14 @@ class QWidgetEffectSourcePrivate : public QGraphicsEffectSourcePrivate
 {
 public:
     QWidgetEffectSourcePrivate(QWidget *widget)
-        : QGraphicsEffectSourcePrivate(), m_widget(widget), context(0), updateDueToGraphicsEffect(false)
+        : QGraphicsEffectSourcePrivate(), m_widget(widget), context(nullptr), updateDueToGraphicsEffect(false)
     {}
 
     void detach() override
-    { m_widget->d_func()->graphicsEffect = 0; }
+    { m_widget->d_func()->graphicsEffect = nullptr; }
 
     const QGraphicsItem *graphicsItem() const override
-    { return 0; }
+    { return nullptr; }
 
     const QWidget *widget() const override
     { return m_widget; }
@@ -953,7 +953,7 @@ public:
     }
 
     const QStyleOption *styleOption() const override
-    { return 0; }
+    { return nullptr; }
 
     QRect deviceRect() const override
     { return m_widget->window()->rect(); }
@@ -983,14 +983,14 @@ inline QTLWExtra *QWidgetPrivate::topData() const
 
 inline QTLWExtra *QWidgetPrivate::maybeTopData() const
 {
-    return extra ? extra->topextra : 0;
+    return extra ? extra->topextra : nullptr;
 }
 
 inline QPainter *QWidgetPrivate::sharedPainter() const
 {
     Q_Q(const QWidget);
     QTLWExtra *x = q->window()->d_func()->maybeTopData();
-    return x ? x->sharedPainter : 0;
+    return x ? x->sharedPainter : nullptr;
 }
 
 inline void QWidgetPrivate::setSharedPainter(QPainter *painter)
@@ -1011,7 +1011,7 @@ inline QWidgetBackingStore *QWidgetPrivate::maybeBackingStore() const
 {
     Q_Q(const QWidget);
     QTLWExtra *x = q->window()->d_func()->maybeTopData();
-    return x ? x->backingStoreTracker.data() : 0;
+    return x ? x->backingStoreTracker.data() : nullptr;
 }
 
 inline QWidgetWindow *QWidgetPrivate::windowHandle() const
diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp
index 0481dffda8..595beeaf47 100644
--- a/src/widgets/kernel/qwidgetbackingstore.cpp
+++ b/src/widgets/kernel/qwidgetbackingstore.cpp
@@ -310,12 +310,6 @@ bool QWidgetBackingStore::bltRect(const QRect &rect, int dx, int dy, QWidget *wi
     return store->scroll(tlwRect, dx, dy);
 }
 
-void QWidgetBackingStore::releaseBuffer()
-{
-    if (store)
-        store->resize(QSize());
-}
-
 /*!
     Prepares the window surface to paint a\ toClean region of the \a widget and
     updates the BeginPaintInfo struct accordingly.
diff --git a/src/widgets/kernel/qwidgetbackingstore_p.h b/src/widgets/kernel/qwidgetbackingstore_p.h
index 4d15ab138e..9409ba7832 100644
--- a/src/widgets/kernel/qwidgetbackingstore_p.h
+++ b/src/widgets/kernel/qwidgetbackingstore_p.h
@@ -109,7 +109,7 @@ public:
 
     void sync(QWidget *exposedWidget, const QRegion &exposedRegion);
     void sync();
-    void flush(QWidget *widget = 0);
+    void flush(QWidget *widget = nullptr);
 
     QBackingStore *backingStore() const { return store; }
 
@@ -149,14 +149,13 @@ private:
 
     void doSync();
     bool bltRect(const QRect &rect, int dx, int dy, QWidget *widget);
-    void releaseBuffer();
 
     void beginPaint(QRegion &toClean, QWidget *widget, QBackingStore *backingStore,
                     BeginPaintInfo *returnInfo, bool toCleanIsInTopLevelCoordinates = true);
     void endPaint(const QRegion &cleaned, QBackingStore *backingStore, BeginPaintInfo *beginPaintInfo);
 
-    QRegion dirtyRegion(QWidget *widget = 0) const;
-    QRegion staticContents(QWidget *widget = 0, const QRect &withinClipRect = QRect()) const;
+    QRegion dirtyRegion(QWidget *widget = nullptr) const;
+    QRegion staticContents(QWidget *widget = nullptr, const QRect &withinClipRect = QRect()) const;
 
     void markDirtyOnScreen(const QRegion &dirtyOnScreen, QWidget *widget, const QPoint &topLevelOffset);
 
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
index fbc71cd0ea..5bcf885dfe 100644
--- a/src/widgets/kernel/qwidgetwindow.cpp
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -106,6 +106,7 @@ public:
         if (QWidget *widget = q->widget())
             QWidgetPrivate::get(widget)->updateContentsRect();
     }
+    bool allowClickThrough(const QPoint &) const override;
 };
 
 QRectF QWidgetWindowPrivate::closestAcceptableGeometry(const QRectF &rect) const
@@ -221,6 +222,12 @@ static inline bool shouldBePropagatedToWidget(QEvent *event)
     }
 }
 
+bool QWidgetWindowPrivate::allowClickThrough(const QPoint &globalPos) const
+{
+    QWidget *w = QApplication::widgetAt(globalPos);
+    return w && !w->testAttribute(Qt::WA_MacNoClickThrough);
+}
+
 bool QWidgetWindow::event(QEvent *event)
 {
     if (!m_widget)
@@ -1018,7 +1025,11 @@ void QWidgetWindow::handleWindowStateChangedEvent(QWindowStateChangeEvent *event
     }
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool QWidgetWindow::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
 bool QWidgetWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
 {
     return m_widget->nativeEvent(eventType, message, result);
 }
diff --git a/src/widgets/kernel/qwidgetwindow_p.h b/src/widgets/kernel/qwidgetwindow_p.h
index 0728135467..80a345465d 100644
--- a/src/widgets/kernel/qwidgetwindow_p.h
+++ b/src/widgets/kernel/qwidgetwindow_p.h
@@ -103,7 +103,11 @@ protected:
 #endif
     void handleExposeEvent(QExposeEvent *);
     void handleWindowStateChangedEvent(QWindowStateChangeEvent *event);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result) override;
+#else
     bool nativeEvent(const QByteArray &eventType, void *message, long *result) override;
+#endif
 #if QT_CONFIG(tabletevent)
     void handleTabletEvent(QTabletEvent *);
 #endif
diff --git a/src/widgets/kernel/qwindowcontainer_p.h b/src/widgets/kernel/qwindowcontainer_p.h
index a8754232a8..c6de168c10 100644
--- a/src/widgets/kernel/qwindowcontainer_p.h
+++ b/src/widgets/kernel/qwindowcontainer_p.h
@@ -64,7 +64,7 @@ class Q_WIDGETS_EXPORT QWindowContainer : public QWidget
     Q_DECLARE_PRIVATE(QWindowContainer)
 
 public:
-    explicit QWindowContainer(QWindow *embeddedWindow, QWidget *parent = 0, Qt::WindowFlags f = 0);
+    explicit QWindowContainer(QWindow *embeddedWindow, QWidget *parent = nullptr, Qt::WindowFlags f = nullptr);
     ~QWindowContainer();
     QWindow *containedWindow() const;
 
diff --git a/src/widgets/kernel/win.pri b/src/widgets/kernel/win.pri
index f6877b02db..3b3170beb1 100644
--- a/src/widgets/kernel/win.pri
+++ b/src/widgets/kernel/win.pri
@@ -2,4 +2,7 @@
 # --------------------------------------------------------------------
 
 INCLUDEPATH += ../3rdparty/wintab
-!winrt: LIBS_PRIVATE *= -lshell32 -luxtheme -ldwmapi
+!winrt {
+    LIBS_PRIVATE *= -luxtheme -ldwmapi
+    QMAKE_USE_PRIVATE += shell32
+}
diff --git a/src/widgets/statemachine/qbasickeyeventtransition_p.h b/src/widgets/statemachine/qbasickeyeventtransition_p.h
index 7e1b978bba..f23c078570 100644
--- a/src/widgets/statemachine/qbasickeyeventtransition_p.h
+++ b/src/widgets/statemachine/qbasickeyeventtransition_p.h
@@ -63,11 +63,11 @@ class Q_AUTOTEST_EXPORT QBasicKeyEventTransition : public QAbstractTransition
 {
     Q_OBJECT
 public:
-    QBasicKeyEventTransition(QState *sourceState = 0);
-    QBasicKeyEventTransition(QEvent::Type type, int key, QState *sourceState = 0);
+    QBasicKeyEventTransition(QState *sourceState = nullptr);
+    QBasicKeyEventTransition(QEvent::Type type, int key, QState *sourceState = nullptr);
     QBasicKeyEventTransition(QEvent::Type type, int key,
                              Qt::KeyboardModifiers modifierMask,
-                             QState *sourceState = 0);
+                             QState *sourceState = nullptr);
     ~QBasicKeyEventTransition();
 
     QEvent::Type eventType() const;
diff --git a/src/widgets/statemachine/qbasicmouseeventtransition_p.h b/src/widgets/statemachine/qbasicmouseeventtransition_p.h
index 132e223535..dd619d189c 100644
--- a/src/widgets/statemachine/qbasicmouseeventtransition_p.h
+++ b/src/widgets/statemachine/qbasicmouseeventtransition_p.h
@@ -65,9 +65,9 @@ class Q_AUTOTEST_EXPORT QBasicMouseEventTransition : public QAbstractTransition
 {
     Q_OBJECT
 public:
-    QBasicMouseEventTransition(QState *sourceState = 0);
+    QBasicMouseEventTransition(QState *sourceState = nullptr);
     QBasicMouseEventTransition(QEvent::Type type, Qt::MouseButton button,
-                               QState *sourceState = 0);
+                               QState *sourceState = nullptr);
     ~QBasicMouseEventTransition();
 
     QEvent::Type eventType() const;
diff --git a/src/widgets/styles/qcommonstyle_p.h b/src/widgets/styles/qcommonstyle_p.h
index 296f89ce5f..4860dfe4c9 100644
--- a/src/widgets/styles/qcommonstyle_p.h
+++ b/src/widgets/styles/qcommonstyle_p.h
@@ -71,7 +71,7 @@ class Q_WIDGETS_EXPORT QCommonStylePrivate : public QStylePrivate
 public:
     inline QCommonStylePrivate() :
 #if QT_CONFIG(itemviews)
-    cachedOption(0),
+    cachedOption(nullptr),
 #endif
     animationFps(30)
     { }
diff --git a/src/widgets/styles/qfusionstyle_p.h b/src/widgets/styles/qfusionstyle_p.h
index e67e792727..cbefe3e1af 100644
--- a/src/widgets/styles/qfusionstyle_p.h
+++ b/src/widgets/styles/qfusionstyle_p.h
@@ -72,28 +72,28 @@ public:
     QPalette standardPalette () const override;
     void drawPrimitive(PrimitiveElement elem,
                        const QStyleOption *option,
-                       QPainter *painter, const QWidget *widget = 0) const override;
+                       QPainter *painter, const QWidget *widget = nullptr) const override;
     void drawControl(ControlElement ce, const QStyleOption *option, QPainter *painter,
                      const QWidget *widget) const override;
-    int pixelMetric(PixelMetric metric, const QStyleOption *option = 0, const QWidget *widget = 0) const override;
+    int pixelMetric(PixelMetric metric, const QStyleOption *option = nullptr, const QWidget *widget = nullptr) const override;
     void drawComplexControl(ComplexControl control, const QStyleOptionComplex *option,
                             QPainter *painter, const QWidget *widget) const override;
-    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = 0) const override;
+    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = nullptr) const override;
     QSize sizeFromContents(ContentsType type, const QStyleOption *option,
                            const QSize &size, const QWidget *widget) const override;
     SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
-                                     const QPoint &pt, const QWidget *w = 0) const override;
+                                     const QPoint &pt, const QWidget *w = nullptr) const override;
     QRect subControlRect(ComplexControl cc, const QStyleOptionComplex *opt,
                          SubControl sc, const QWidget *widget) const override;
     QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap,
                                 const QStyleOption *opt) const override;
-    int styleHint(StyleHint hint, const QStyleOption *option = 0, const QWidget *widget = 0,
-                  QStyleHintReturn *returnData = 0) const override;
+    int styleHint(StyleHint hint, const QStyleOption *option = nullptr, const QWidget *widget = nullptr,
+                  QStyleHintReturn *returnData = nullptr) const override;
     QRect itemPixmapRect(const QRect &r, int flags, const QPixmap &pixmap) const override;
-    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = 0,
-                       const QWidget *widget = 0) const override;
+    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = nullptr,
+                       const QWidget *widget = nullptr) const override;
     QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt,
-                           const QWidget *widget = 0) const override;
+                           const QWidget *widget = nullptr) const override;
     void drawItemPixmap(QPainter *painter, const QRect &rect,
                         int alignment, const QPixmap &pixmap) const override;
     void drawItemText(QPainter *painter, const QRect &rect,
diff --git a/src/widgets/styles/qpixmapstyle_p.h b/src/widgets/styles/qpixmapstyle_p.h
index 590434d95e..d32631a527 100644
--- a/src/widgets/styles/qpixmapstyle_p.h
+++ b/src/widgets/styles/qpixmapstyle_p.h
@@ -147,7 +147,7 @@ public:
     void drawControl(ControlElement element, const QStyleOption *option,
             QPainter *painter, const QWidget *widget = nullptr) const override;
     void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *option,
-                            QPainter *painter, const QWidget *widget=0) const override;
+                            QPainter *painter, const QWidget *widget=nullptr) const override;
 
     QSize sizeFromContents(ContentsType type, const QStyleOption *option,
             const QSize &contentsSize, const QWidget *widget = nullptr) const override;
diff --git a/src/widgets/styles/qproxystyle_p.h b/src/widgets/styles/qproxystyle_p.h
index 2343a03e2a..2321f0fed0 100644
--- a/src/widgets/styles/qproxystyle_p.h
+++ b/src/widgets/styles/qproxystyle_p.h
@@ -67,7 +67,7 @@ public:
     void ensureBaseStyle() const;
 private:
     QProxyStylePrivate() :
-    QCommonStylePrivate(), baseStyle(0) {}
+    QCommonStylePrivate(), baseStyle(nullptr) {}
     mutable QPointer <QStyle> baseStyle;
 };
 
diff --git a/src/widgets/styles/qstyle.h b/src/widgets/styles/qstyle.h
index 5ee37bd8e9..ee234457f5 100644
--- a/src/widgets/styles/qstyle.h
+++ b/src/widgets/styles/qstyle.h
@@ -832,6 +832,13 @@ public:
         SP_MediaVolume,
         SP_MediaVolumeMuted,
         SP_LineEditClearButton,
+        SP_DialogYesToAllButton,
+        SP_DialogNoToAllButton,
+        SP_DialogSaveAllButton,
+        SP_DialogAbortButton,
+        SP_DialogRetryButton,
+        SP_DialogIgnoreButton,
+        SP_RestoreDefaultsButton,
         // do not add any values below/greater than this
         SP_CustomBase = 0xf0000000
     };
diff --git a/src/widgets/styles/qstyle_p.h b/src/widgets/styles/qstyle_p.h
index 5bbde5fe17..7942cafaf7 100644
--- a/src/widgets/styles/qstyle_p.h
+++ b/src/widgets/styles/qstyle_p.h
@@ -66,7 +66,7 @@ class QStylePrivate: public QObjectPrivate
     Q_DECLARE_PUBLIC(QStyle)
 public:
     inline QStylePrivate()
-        : layoutSpacingIndex(-1), proxyStyle(0) {}
+        : layoutSpacingIndex(-1), proxyStyle(nullptr) {}
 
     static bool useFullScreenForPopup();
 
diff --git a/src/widgets/styles/qstylehelper_p.h b/src/widgets/styles/qstylehelper_p.h
index d79dfe4288..fe052b8984 100644
--- a/src/widgets/styles/qstylehelper_p.h
+++ b/src/widgets/styles/qstylehelper_p.h
@@ -89,11 +89,11 @@ namespace QStyleHelper
     Q_WIDGETS_EXPORT bool isInstanceOf(QObject *obj, QAccessible::Role role);
     Q_WIDGETS_EXPORT bool hasAncestor(QObject *obj, QAccessible::Role role);
 #endif
-    Q_WIDGETS_EXPORT QColor backgroundColor(const QPalette &pal, const QWidget* widget = 0);
+    Q_WIDGETS_EXPORT QColor backgroundColor(const QPalette &pal, const QWidget* widget = nullptr);
 
     enum WidgetSizePolicy { SizeLarge = 0, SizeSmall = 1, SizeMini = 2, SizeDefault = -1 };
 
-    Q_WIDGETS_EXPORT WidgetSizePolicy widgetSizePolicy(const QWidget *w, const QStyleOption *opt = 0);
+    Q_WIDGETS_EXPORT WidgetSizePolicy widgetSizePolicy(const QWidget *w, const QStyleOption *opt = nullptr);
 }
 
 
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 2118bad9d6..0008f11546 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -851,7 +851,7 @@ QHash<QStyle::SubControl, QRect> QStyleSheetStyle::titleBarLayout(const QWidget
             info.rule = subRule;
             info.offset = offsets[where];
             info.where = where;
-            infos.append(qMove(info));
+            infos.append(std::move(info));
 
             offsets[where] += info.width;
         }
@@ -4093,6 +4093,11 @@ void QStyleSheetStyle::drawControl(ControlElement ce, const QStyleOption *opt, Q
             if (subRule.hasFont)
                 p->setFont(subRule.font);
             boxCopy.rect = subRule.contentsRect(opt->rect);
+            if (subRule.hasImage()) {
+                // the image is already drawn with CE_ToolBoxTabShape, adjust rect here
+                const int iconExtent = proxy()->pixelMetric(QStyle::PM_SmallIconSize, box, w);
+                boxCopy.rect.setLeft(boxCopy.rect.left() + iconExtent);
+            }
             QWindowsStyle::drawControl(ce, &boxCopy, p , w);
             if (subRule.hasFont)
                 p->setFont(oldFont);
diff --git a/src/widgets/styles/qstylesheetstyle_p.h b/src/widgets/styles/qstylesheetstyle_p.h
index 9c4b87fc32..c5266558af 100644
--- a/src/widgets/styles/qstylesheetstyle_p.h
+++ b/src/widgets/styles/qstylesheetstyle_p.h
@@ -82,40 +82,40 @@ public:
     ~QStyleSheetStyle();
 
     void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
-                            const QWidget *w = 0) const override;
+                            const QWidget *w = nullptr) const override;
     void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
-                     const QWidget *w = 0) const override;
+                     const QWidget *w = nullptr) const override;
     void drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, const QPixmap &pixmap) const override;
     void drawItemText(QPainter *painter, const QRect& rect, int alignment, const QPalette &pal,
               bool enabled, const QString& text, QPalette::ColorRole textRole  = QPalette::NoRole) const override;
     void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
-                       const QWidget *w = 0) const override;
+                       const QWidget *w = nullptr) const override;
     QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap,
                                 const QStyleOption *option) const override;
     SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
-                                     const QPoint &pt, const QWidget *w = 0) const override;
+                                     const QPoint &pt, const QWidget *w = nullptr) const override;
     QRect itemPixmapRect(const QRect &rect, int alignment, const QPixmap &pixmap) const override;
     QRect itemTextRect(const QFontMetrics &metrics, const QRect &rect, int alignment, bool enabled,
                        const QString &text) const override;
-    int pixelMetric(PixelMetric metric, const QStyleOption *option = 0, const QWidget *widget = 0) const override;
+    int pixelMetric(PixelMetric metric, const QStyleOption *option = nullptr, const QWidget *widget = nullptr) const override;
     void polish(QWidget *widget) override;
     void polish(QApplication *app) override;
     void polish(QPalette &pal) override;
     QSize sizeFromContents(ContentsType ct, const QStyleOption *opt,
-                           const QSize &contentsSize, const QWidget *widget = 0) const override;
+                           const QSize &contentsSize, const QWidget *widget = nullptr) const override;
     QPalette standardPalette() const override;
-    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *opt = 0,
-                       const QWidget *widget = 0) const override;
-    QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option = 0,
-                           const QWidget *w = 0 ) const override;
+    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *opt = nullptr,
+                       const QWidget *widget = nullptr) const override;
+    QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option = nullptr,
+                           const QWidget *w = nullptr ) const override;
     int layoutSpacing(QSizePolicy::ControlType control1, QSizePolicy::ControlType control2,
-                          Qt::Orientation orientation, const QStyleOption *option = 0,
-                          const QWidget *widget = 0) const override;
-    int styleHint(StyleHint sh, const QStyleOption *opt = 0, const QWidget *w = 0,
-                  QStyleHintReturn *shret = 0) const override;
-    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = 0) const override;
+                          Qt::Orientation orientation, const QStyleOption *option = nullptr,
+                          const QWidget *widget = nullptr) const override;
+    int styleHint(StyleHint sh, const QStyleOption *opt = nullptr, const QWidget *w = nullptr,
+                  QStyleHintReturn *shret = nullptr) const override;
+    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = nullptr) const override;
     QRect subControlRect(ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc,
-                         const QWidget *w = 0) const override;
+                         const QWidget *w = nullptr) const override;
 
     // These functions are called from QApplication/QWidget. Be careful.
     QStyle *baseStyle() const;
diff --git a/src/widgets/styles/qwindowsstyle.cpp b/src/widgets/styles/qwindowsstyle.cpp
index 4e450813cb..7b5da9bfa8 100644
--- a/src/widgets/styles/qwindowsstyle.cpp
+++ b/src/widgets/styles/qwindowsstyle.cpp
@@ -802,8 +802,10 @@ void QWindowsStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt,
         QPen oldPen = p->pen();
         p->setPen(QPen(opt->palette.shadow().color(), 0));
         QRectF rect = opt->rect;
-        rect.adjust(QStyleHelper::dpiScaled(0.5), QStyleHelper::dpiScaled(0.5),
-                    QStyleHelper::dpiScaled(-1.5), QStyleHelper::dpiScaled(-1.5));
+        const qreal topLevelAdjustment = QStyleHelper::dpiScaled(0.5);
+        const qreal bottomRightAdjustment = QStyleHelper::dpiScaled(-1.5);
+        rect.adjust(topLevelAdjustment, topLevelAdjustment,
+                    bottomRightAdjustment, bottomRightAdjustment);
         p->drawRect(rect);
         p->setPen(oldPen);
         break;
diff --git a/src/widgets/styles/qwindowsstyle_p.h b/src/widgets/styles/qwindowsstyle_p.h
index 47816ff651..b5f0bd68a1 100644
--- a/src/widgets/styles/qwindowsstyle_p.h
+++ b/src/widgets/styles/qwindowsstyle_p.h
@@ -77,25 +77,25 @@ public:
     void polish(QPalette &) override;
 
     void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
-                       const QWidget *w = 0) const override;
+                       const QWidget *w = nullptr) const override;
     void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
-                     const QWidget *w = 0) const override;
-    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = 0) const override;
+                     const QWidget *w = nullptr) const override;
+    QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = nullptr) const override;
     void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
-                            const QWidget *w = 0) const override;
+                            const QWidget *w = nullptr) const override;
     QSize sizeFromContents(ContentsType ct, const QStyleOption *opt,
-                           const QSize &contentsSize, const QWidget *widget = 0) const override;
+                           const QSize &contentsSize, const QWidget *widget = nullptr) const override;
 
-    int pixelMetric(PixelMetric pm, const QStyleOption *option = 0, const QWidget *widget = 0) const override;
+    int pixelMetric(PixelMetric pm, const QStyleOption *option = nullptr, const QWidget *widget = nullptr) const override;
 
-    int styleHint(StyleHint hint, const QStyleOption *opt = 0, const QWidget *widget = 0,
-                  QStyleHintReturn *returnData = 0) const override;
+    int styleHint(StyleHint hint, const QStyleOption *opt = nullptr, const QWidget *widget = nullptr,
+                  QStyleHintReturn *returnData = nullptr) const override;
 
     QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt,
-                           const QWidget *widget = 0) const override;
+                           const QWidget *widget = nullptr) const override;
 
-    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = 0,
-                       const QWidget *widget = 0) const override;
+    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = nullptr,
+                       const QWidget *widget = nullptr) const override;
 
 protected:
     bool eventFilter(QObject *o, QEvent *e) override;
diff --git a/src/widgets/styles/qwindowsstyle_p_p.h b/src/widgets/styles/qwindowsstyle_p_p.h
index 67fa6a2f86..e6ea809f11 100644
--- a/src/widgets/styles/qwindowsstyle_p_p.h
+++ b/src/widgets/styles/qwindowsstyle_p_p.h
@@ -69,9 +69,9 @@ public:
     enum { InvalidMetric = -23576 };
 
     QWindowsStylePrivate();
-    static int pixelMetricFromSystemDp(QStyle::PixelMetric pm, const QStyleOption *option = 0, const QWidget *widget = 0);
+    static int pixelMetricFromSystemDp(QStyle::PixelMetric pm, const QStyleOption *option = nullptr, const QWidget *widget = nullptr);
     static int fixedPixelMetric(QStyle::PixelMetric pm);
-    static qreal devicePixelRatio(const QWidget *widget = 0)
+    static qreal devicePixelRatio(const QWidget *widget = nullptr)
         { return widget ? widget->devicePixelRatioF() : QWindowsStylePrivate::appDevicePixelRatio(); }
     static qreal nativeMetricScaleFactor(const QWidget *widget = nullptr);
 
diff --git a/src/widgets/util/qcompleter_p.h b/src/widgets/util/qcompleter_p.h
index 21dddf446e..a52e63a6e2 100644
--- a/src/widgets/util/qcompleter_p.h
+++ b/src/widgets/util/qcompleter_p.h
@@ -75,7 +75,7 @@ class QCompleterPrivate : public QObjectPrivate
 public:
     QCompleterPrivate();
     ~QCompleterPrivate() { delete popup; }
-    void init(QAbstractItemModel *model = 0);
+    void init(QAbstractItemModel *model = nullptr);
 
     QPointer<QWidget> widget;
     QCompletionModel *proxy;
diff --git a/src/widgets/util/qflickgesture_p.h b/src/widgets/util/qflickgesture_p.h
index d5ace887ae..0b47516047 100644
--- a/src/widgets/util/qflickgesture_p.h
+++ b/src/widgets/util/qflickgesture_p.h
@@ -71,7 +71,7 @@ class Q_WIDGETS_EXPORT QFlickGesture : public QGesture
     Q_DECLARE_PRIVATE(QFlickGesture)
 
 public:
-    QFlickGesture(QObject *receiver, Qt::MouseButton button, QObject *parent = 0);
+    QFlickGesture(QObject *receiver, Qt::MouseButton button, QObject *parent = nullptr);
     ~QFlickGesture();
 
     friend class QFlickGestureRecognizer;
diff --git a/src/widgets/util/qundostack_p.h b/src/widgets/util/qundostack_p.h
index 04bc381114..05c9e0d27e 100644
--- a/src/widgets/util/qundostack_p.h
+++ b/src/widgets/util/qundostack_p.h
@@ -80,7 +80,7 @@ class QUndoStackPrivate : public QObjectPrivate
 {
     Q_DECLARE_PUBLIC(QUndoStack)
 public:
-    QUndoStackPrivate() : index(0), clean_index(0), group(0), undo_limit(0) {}
+    QUndoStackPrivate() : index(0), clean_index(0), group(nullptr), undo_limit(0) {}
 
     QList<QUndoCommand*> command_list;
     QList<QUndoCommand*> macro_stack;
@@ -98,7 +98,7 @@ class QUndoAction : public QAction
 {
     Q_OBJECT
 public:
-    explicit QUndoAction(const QString &prefix, QObject *parent = 0);
+    explicit QUndoAction(const QString &prefix, QObject *parent = nullptr);
     void setTextFormat(const QString &textFormat, const QString &defaultText);
 public Q_SLOTS:
     void setPrefixedText(const QString &text);
diff --git a/src/widgets/widgets.pro b/src/widgets/widgets.pro
index e556cb8b10..6f807e1696 100644
--- a/src/widgets/widgets.pro
+++ b/src/widgets/widgets.pro
@@ -32,8 +32,6 @@ qtConfig(graphicseffect) {
 
 QMAKE_LIBS += $$QMAKE_LIBS_GUI
 
-contains(DEFINES,QT_EVAL):include($$QT_SOURCE_TREE/src/corelib/eval.pri)
-
 QMAKE_DYNAMIC_LIST_FILE = $$PWD/QtWidgets.dynlist
 
 # Code coverage with TestCocoon
diff --git a/src/widgets/widgets/qabstractslider_p.h b/src/widgets/widgets/qabstractslider_p.h
index 419ce2ba07..1b8c76c7ec 100644
--- a/src/widgets/widgets/qabstractslider_p.h
+++ b/src/widgets/widgets/qabstractslider_p.h
@@ -134,7 +134,7 @@ public:
     inline void setAdjustedSliderPosition(int position)
     {
         Q_Q(QAbstractSlider);
-        if (q->style()->styleHint(QStyle::SH_Slider_StopMouseOverSlider, 0, q)) {
+        if (q->style()->styleHint(QStyle::SH_Slider_StopMouseOverSlider, nullptr, q)) {
             if ((position > pressValue - 2 * pageStep) && (position < pressValue + 2 * pageStep)) {
                 repeatAction = QAbstractSlider::SliderNoAction;
                 q->setSliderPosition(pressValue);
diff --git a/src/widgets/widgets/qabstractspinbox.cpp b/src/widgets/widgets/qabstractspinbox.cpp
index 6edefaa311..56697c5e8f 100644
--- a/src/widgets/widgets/qabstractspinbox.cpp
+++ b/src/widgets/widgets/qabstractspinbox.cpp
@@ -252,7 +252,7 @@ QString QAbstractSpinBox::text() const
 
     All values are displayed with the prefix and suffix (if set), \e
     except for the special value, which only shows the special value
-    text. This special text is passed in the QSpinBox::valueChanged()
+    text. This special text is passed in the QSpinBox::textChanged()
     signal that passes a QString.
 
     To turn off the special-value text display, call this function
@@ -342,18 +342,18 @@ void QAbstractSpinBox::setReadOnly(bool enable)
     \since 4.3
 
     If keyboard tracking is enabled (the default), the spinbox
-    emits the valueChanged() signal while the new value is being
-    entered from the keyboard.
+    emits the valueChanged() and textChanged() signals while the
+    new value is being entered from the keyboard.
 
     E.g. when the user enters the value 600 by typing 6, 0, and 0,
     the spinbox emits 3 signals with the values 6, 60, and 600
     respectively.
 
     If keyboard tracking is disabled, the spinbox doesn't emit the
-    valueChanged() signal while typing. It emits the signal later,
-    when the return key is pressed, when keyboard focus is lost, or
-    when other spinbox functionality is used, e.g. pressing an arrow
-    key.
+    valueChanged() and textChanged() signals while typing. It emits
+    the signals later, when the return key is pressed, when keyboard
+    focus is lost, or when other spinbox functionality is used, e.g.
+    pressing an arrow key.
 */
 
 bool QAbstractSpinBox::keyboardTracking() const
@@ -2030,8 +2030,8 @@ QVariant operator+(const QVariant &arg1, const QVariant &arg2)
 #if QT_CONFIG(datetimeparser)
     case QVariant::DateTime: {
         QDateTime a2 = arg2.toDateTime();
-        QDateTime a1 = arg1.toDateTime().addDays(QDATETIMEEDIT_DATETIME_MIN.daysTo(a2));
-        a1.setTime(a1.time().addMSecs(QTime().msecsTo(a2.time())));
+        QDateTime a1 = arg1.toDateTime().addDays(QDATETIMEEDIT_DATE_MIN.daysTo(a2.date()));
+        a1.setTime(a1.time().addMSecs(a2.time().msecsSinceStartOfDay()));
         ret = QVariant(a1);
         break;
     }
@@ -2093,11 +2093,11 @@ QVariant operator*(const QVariant &arg1, double multiplier)
 #if QT_CONFIG(datetimeparser)
     case QVariant::DateTime: {
         double days = QDATETIMEEDIT_DATE_MIN.daysTo(arg1.toDateTime().date()) * multiplier;
-        int daysInt = (int)days;
+        const qint64 daysInt = qint64(days);
         days -= daysInt;
-        long msecs = (long)((QDATETIMEEDIT_TIME_MIN.msecsTo(arg1.toDateTime().time()) * multiplier)
-                            + (days * (24 * 3600 * 1000)));
-        ret = QDateTime(QDate().addDays(int(days)), QTime().addMSecs(msecs));
+        qint64 msecs = qint64(arg1.toDateTime().time().msecsSinceStartOfDay() * multiplier
+                              + days * (24 * 3600 * 1000));
+        ret = QDATETIMEEDIT_DATE_MIN.addDays(daysInt).startOfDay().addMSecs(msecs);
         break;
     }
 #endif // datetimeparser
@@ -2127,8 +2127,8 @@ double operator/(const QVariant &arg1, const QVariant &arg2)
     case QVariant::DateTime:
         a1 = QDATETIMEEDIT_DATE_MIN.daysTo(arg1.toDate());
         a2 = QDATETIMEEDIT_DATE_MIN.daysTo(arg2.toDate());
-        a1 += (double)QDATETIMEEDIT_TIME_MIN.msecsTo(arg1.toDateTime().time()) / (long)(3600 * 24 * 1000);
-        a2 += (double)QDATETIMEEDIT_TIME_MIN.msecsTo(arg2.toDateTime().time()) / (long)(3600 * 24 * 1000);
+        a1 += arg1.toDateTime().time().msecsSinceStartOfDay() / (36e5 * 24);
+        a2 += arg2.toDateTime().time().msecsSinceStartOfDay() / (36e5 * 24);
         break;
 #endif // datetimeparser
     default: break;
diff --git a/src/widgets/widgets/qabstractspinbox_p.h b/src/widgets/widgets/qabstractspinbox_p.h
index fce88e43f4..ad169fde19 100644
--- a/src/widgets/widgets/qabstractspinbox_p.h
+++ b/src/widgets/widgets/qabstractspinbox_p.h
@@ -97,7 +97,7 @@ public:
     void init();
     void reset();
     void updateState(bool up, bool fromKeyboard = false);
-    QString stripped(const QString &text, int *pos = 0) const;
+    QString stripped(const QString &text, int *pos = nullptr) const;
     bool specialValue() const;
     virtual QVariant getZeroVariant() const;
     virtual void setRange(const QVariant &min, const QVariant &max);
diff --git a/src/widgets/widgets/qcalendarwidget.cpp b/src/widgets/widgets/qcalendarwidget.cpp
index 47c5267c73..510b34cb18 100644
--- a/src/widgets/widgets/qcalendarwidget.cpp
+++ b/src/widgets/widgets/qcalendarwidget.cpp
@@ -827,9 +827,9 @@ class StaticDayOfWeekAssociativeArray {
     bool contained[7];
     T data[7];
 
-    static Q_DECL_CONSTEXPR int day2idx(Qt::DayOfWeek day) Q_DECL_NOTHROW { return int(day) - 1; } // alt: day % 7
+    static Q_DECL_CONSTEXPR int day2idx(Qt::DayOfWeek day) noexcept { return int(day) - 1; } // alt: day % 7
 public:
-    Q_DECL_CONSTEXPR StaticDayOfWeekAssociativeArray() Q_DECL_NOEXCEPT_EXPR(noexcept(T()))
+    Q_DECL_CONSTEXPR StaticDayOfWeekAssociativeArray() noexcept(noexcept(T()))
 #ifdef Q_COMPILER_CONSTEXPR
         : contained{}, data{}   // arrays require uniform initialization
 #else
@@ -837,17 +837,17 @@ public:
 #endif
     {}
 
-    Q_DECL_CONSTEXPR bool contains(Qt::DayOfWeek day) const Q_DECL_NOTHROW { return contained[day2idx(day)]; }
-    Q_DECL_CONSTEXPR const T &value(Qt::DayOfWeek day) const Q_DECL_NOTHROW { return data[day2idx(day)]; }
+    Q_DECL_CONSTEXPR bool contains(Qt::DayOfWeek day) const noexcept { return contained[day2idx(day)]; }
+    Q_DECL_CONSTEXPR const T &value(Qt::DayOfWeek day) const noexcept { return data[day2idx(day)]; }
 
-    Q_DECL_RELAXED_CONSTEXPR T &operator[](Qt::DayOfWeek day) Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR T &operator[](Qt::DayOfWeek day) noexcept
     {
         const int idx = day2idx(day);
         contained[idx] = true;
         return data[idx];
     }
 
-    Q_DECL_RELAXED_CONSTEXPR void insert(Qt::DayOfWeek day, T v) Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR void insert(Qt::DayOfWeek day, T v) noexcept
     {
         operator[](day).swap(v);
     }
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index 9a403e8eef..17090efb56 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -1360,7 +1360,13 @@ void QComboBoxPrivate::emitActivated(const QModelIndex &index)
         return;
     QString text(itemText(index));
     emit q->activated(index.row());
+    emit q->textActivated(text);
+#if QT_DEPRECATED_SINCE(5, 15)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
     emit q->activated(text);
+QT_WARNING_POP
+#endif
 }
 
 void QComboBoxPrivate::_q_emitHighlighted(const QModelIndex &index)
@@ -1370,7 +1376,13 @@ void QComboBoxPrivate::_q_emitHighlighted(const QModelIndex &index)
         return;
     QString text(itemText(index));
     emit q->highlighted(index.row());
+    emit q->textHighlighted(text);
+#if QT_DEPRECATED_SINCE(5, 15)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
     emit q->highlighted(text);
+QT_WARNING_POP
+#endif
 }
 
 void QComboBoxPrivate::_q_emitCurrentIndexChanged(const QModelIndex &index)
diff --git a/src/widgets/widgets/qcombobox.h b/src/widgets/widgets/qcombobox.h
index 64fbebb3c5..37b155774d 100644
--- a/src/widgets/widgets/qcombobox.h
+++ b/src/widgets/widgets/qcombobox.h
@@ -220,15 +220,21 @@ public Q_SLOTS:
 Q_SIGNALS:
     void editTextChanged(const QString &);
     void activated(int index);
-    void activated(const QString &);
+    void textActivated(const QString &);
     void highlighted(int index);
-    void highlighted(const QString &);
+    void textHighlighted(const QString &);
     void currentIndexChanged(int index);
+    void currentTextChanged(const QString &);
 #if QT_DEPRECATED_SINCE(5, 13)
-    QT_DEPRECATED_X("Use currentTextChanged() instead")
+    QT_DEPRECATED_VERSION_X(5, 13, "Use currentTextChanged() instead")
     void currentIndexChanged(const QString &);
 #endif
-    void currentTextChanged(const QString &);
+#if QT_DEPRECATED_SINCE(5, 15)
+    QT_DEPRECATED_VERSION_X(5, 15, "Use textActivated() instead")
+    void activated(const QString &);
+    QT_DEPRECATED_VERSION_X(5, 15, "Use textHighlighted() instead")
+    void highlighted(const QString &);
+#endif
 
 protected:
     void focusInEvent(QFocusEvent *e) override;
diff --git a/src/widgets/widgets/qcombobox_p.h b/src/widgets/widgets/qcombobox_p.h
index 71404964da..eadb21628f 100644
--- a/src/widgets/widgets/qcombobox_p.h
+++ b/src/widgets/widgets/qcombobox_p.h
@@ -86,7 +86,7 @@ class QComboBoxListView : public QListView
 {
     Q_OBJECT
 public:
-    QComboBoxListView(QComboBox *cmb = 0) : combo(cmb) {}
+    QComboBoxListView(QComboBox *cmb = nullptr) : combo(cmb) {}
 
 protected:
     void resizeEvent(QResizeEvent *event) override
@@ -331,7 +331,7 @@ protected:
     QSize sizeHint(const QStyleOptionViewItem &option,
                    const QModelIndex &index) const override {
         if (isSeparator(index)) {
-            int pm = mCombo->style()->pixelMetric(QStyle::PM_DefaultFrameWidth, 0, mCombo);
+            int pm = mCombo->style()->pixelMetric(QStyle::PM_DefaultFrameWidth, nullptr, mCombo);
             return QSize(pm, pm);
         }
         return QItemDelegate::sizeHint(option, index);
diff --git a/src/widgets/widgets/qdatetimeedit.cpp b/src/widgets/widgets/qdatetimeedit.cpp
index b874e4e3a9..3f41fdeb59 100644
--- a/src/widgets/widgets/qdatetimeedit.cpp
+++ b/src/widgets/widgets/qdatetimeedit.cpp
@@ -153,7 +153,7 @@ QDateTimeEdit::QDateTimeEdit(QWidget *parent)
     : QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
 {
     Q_D(QDateTimeEdit);
-    d->init(QDateTime(QDATETIMEEDIT_DATE_INITIAL, QDATETIMEEDIT_TIME_MIN));
+    d->init(QDATETIMEEDIT_DATE_INITIAL.startOfDay());
 }
 
 /*!
@@ -165,8 +165,7 @@ QDateTimeEdit::QDateTimeEdit(const QDateTime &datetime, QWidget *parent)
     : QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
 {
     Q_D(QDateTimeEdit);
-    d->init(datetime.isValid() ? datetime : QDateTime(QDATETIMEEDIT_DATE_INITIAL,
-                                                      QDATETIMEEDIT_TIME_MIN));
+    d->init(datetime.isValid() ? datetime : QDATETIMEEDIT_DATE_INITIAL.startOfDay());
 }
 
 /*!
@@ -342,7 +341,7 @@ QDateTime QDateTimeEdit::minimumDateTime() const
 
 void QDateTimeEdit::clearMinimumDateTime()
 {
-    setMinimumDateTime(QDateTime(QDATETIMEEDIT_COMPAT_DATE_MIN, QDATETIMEEDIT_TIME_MIN));
+    setMinimumDateTime(QDATETIMEEDIT_COMPAT_DATE_MIN.startOfDay());
 }
 
 void QDateTimeEdit::setMinimumDateTime(const QDateTime &dt)
@@ -385,7 +384,7 @@ QDateTime QDateTimeEdit::maximumDateTime() const
 
 void QDateTimeEdit::clearMaximumDateTime()
 {
-    setMaximumDateTime(QDATETIMEEDIT_DATETIME_MAX);
+    setMaximumDateTime(QDATETIMEEDIT_DATE_MAX.endOfDay());
 }
 
 void QDateTimeEdit::setMaximumDateTime(const QDateTime &dt)
@@ -1658,8 +1657,8 @@ QDateTimeEditPrivate::QDateTimeEditPrivate()
     first.pos = 0;
     sections = 0;
     calendarPopup = false;
-    minimum = QDATETIMEEDIT_COMPAT_DATETIME_MIN;
-    maximum = QDATETIMEEDIT_DATETIME_MAX;
+    minimum = QDATETIMEEDIT_COMPAT_DATE_MIN.startOfDay();
+    maximum = QDATETIMEEDIT_DATE_MAX.endOfDay();
     arrowState = QStyle::State_None;
     monthCalendar = 0;
     readLocaleSettings();
@@ -1683,8 +1682,8 @@ void QDateTimeEditPrivate::updateTimeSpec()
     const bool dateShown = (sections & QDateTimeEdit::DateSections_Mask);
     if (!dateShown) {
         if (minimum.toTime() >= maximum.toTime()){
-            minimum = QDateTime(value.toDate(), QDATETIMEEDIT_TIME_MIN, spec);
-            maximum = QDateTime(value.toDate(), QDATETIMEEDIT_TIME_MAX, spec);
+            minimum = value.toDate().startOfDay(spec);
+            maximum = value.toDate().endOfDay(spec);
         }
     }
 }
@@ -2382,7 +2381,7 @@ void QDateTimeEditPrivate::init(const QVariant &var)
     Q_Q(QDateTimeEdit);
     switch (var.type()) {
     case QVariant::Date:
-        value = QDateTime(var.toDate(), QDATETIMEEDIT_TIME_MIN);
+        value = var.toDate().startOfDay();
         updateTimeSpec();
         q->setDisplayFormat(defaultDateFormat);
         if (sectionNodes.isEmpty()) // ### safeguard for broken locale
diff --git a/src/widgets/widgets/qdatetimeedit_p.h b/src/widgets/widgets/qdatetimeedit_p.h
index 1ebc98dedf..c05e7d9b48 100644
--- a/src/widgets/widgets/qdatetimeedit_p.h
+++ b/src/widgets/widgets/qdatetimeedit_p.h
@@ -123,7 +123,7 @@ public:
     static QDateTimeEdit::Sections convertSections(QDateTimeParser::Sections s);
     static QDateTimeEdit::Section convertToPublic(QDateTimeParser::Section s);
 
-    void initCalendarPopup(QCalendarWidget *cw = 0);
+    void initCalendarPopup(QCalendarWidget *cw = nullptr);
     void positionCalendarPopup();
 
     QDateTimeEdit::Sections sections;
@@ -145,7 +145,7 @@ class QCalendarPopup : public QWidget
 {
     Q_OBJECT
 public:
-    explicit QCalendarPopup(QWidget *parent = 0, QCalendarWidget *cw = 0);
+    explicit QCalendarPopup(QWidget *parent = nullptr, QCalendarWidget *cw = nullptr);
     QDate selectedDate() { return verifyCalendarInstance()->selectedDate(); }
     void setDate(const QDate &date);
     void setDateRange(const QDate &min, const QDate &max);
diff --git a/src/widgets/widgets/qdialogbuttonbox.cpp b/src/widgets/widgets/qdialogbuttonbox.cpp
index 26b86f80be..28f6cdc7bd 100644
--- a/src/widgets/widgets/qdialogbuttonbox.cpp
+++ b/src/widgets/widgets/qdialogbuttonbox.cpp
@@ -387,12 +387,25 @@ QPushButton *QDialogButtonBoxPrivate::createButton(QDialogButtonBox::StandardBut
         icon = QStyle::SP_DialogNoButton;
         break;
     case QDialogButtonBox::YesToAll:
+        icon = QStyle::SP_DialogYesToAllButton;
+        break;
     case QDialogButtonBox::NoToAll:
+        icon = QStyle::SP_DialogNoToAllButton;
+        break;
     case QDialogButtonBox::SaveAll:
+        icon = QStyle::SP_DialogSaveAllButton;
+        break;
     case QDialogButtonBox::Abort:
+        icon = QStyle::SP_DialogAbortButton;
+        break;
     case QDialogButtonBox::Retry:
+        icon = QStyle::SP_DialogRetryButton;
+        break;
     case QDialogButtonBox::Ignore:
+        icon = QStyle::SP_DialogIgnoreButton;
+        break;
     case QDialogButtonBox::RestoreDefaults:
+        icon = QStyle::SP_RestoreDefaultsButton;
         break;
     case QDialogButtonBox::NoButton:
         return 0;
diff --git a/src/widgets/widgets/qdockarealayout_p.h b/src/widgets/widgets/qdockarealayout_p.h
index 49bd157179..ab9c0c476c 100644
--- a/src/widgets/widgets/qdockarealayout_p.h
+++ b/src/widgets/widgets/qdockarealayout_p.h
@@ -89,7 +89,7 @@ struct QDockAreaLayoutItem
 {
     enum ItemFlags { NoFlags = 0, GapItem = 1, KeepSize = 2 };
 
-    explicit QDockAreaLayoutItem(QLayoutItem *_widgetItem = 0);
+    explicit QDockAreaLayoutItem(QLayoutItem *_widgetItem = nullptr);
     explicit QDockAreaLayoutItem(QDockAreaLayoutInfo *_subinfo);
     explicit QDockAreaLayoutItem(QPlaceHolderItem *_placeHolderItem);
     QDockAreaLayoutItem(const QDockAreaLayoutItem &other);
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index 4041c730b8..f98e0e44db 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -1182,6 +1182,8 @@ void QDockWidgetPrivate::setWindowState(bool floating, bool unplug, const QRect
             QMainWindowLayout *mwlayout = qt_mainwindow_layout_from_dock(q);
             if (mwlayout)
                 emit q->dockLocationChanged(mwlayout->dockWidgetArea(q));
+        } else {
+            emit q->dockLocationChanged(Qt::NoDockWidgetArea);
         }
     }
 
diff --git a/src/widgets/widgets/qdockwidget_p.h b/src/widgets/widgets/qdockwidget_p.h
index e224ba7143..bc6ac86c45 100644
--- a/src/widgets/widgets/qdockwidget_p.h
+++ b/src/widgets/widgets/qdockwidget_p.h
@@ -138,7 +138,7 @@ class Q_WIDGETS_EXPORT QDockWidgetLayout : public QLayout
 {
     Q_OBJECT
 public:
-    QDockWidgetLayout(QWidget *parent = 0);
+    QDockWidgetLayout(QWidget *parent = nullptr);
     ~QDockWidgetLayout();
     void addItem(QLayoutItem *item) override;
     QLayoutItem *itemAt(int index) const override;
@@ -196,15 +196,15 @@ inline QLayoutItem *QDockWidgetItem::dockWidgetChildItem() const
 {
     if (QDockWidgetLayout *layout = dockWidgetLayout())
         return layout->itemForRole(QDockWidgetLayout::Content);
-    return 0;
+    return nullptr;
 }
 
 inline QDockWidgetLayout *QDockWidgetItem::dockWidgetLayout() const
 {
     QWidget *w = const_cast<QDockWidgetItem*>(this)->widget();
-    if (w != 0)
+    if (w != nullptr)
         return qobject_cast<QDockWidgetLayout*>(w->layout());
-    return 0;
+    return nullptr;
 }
 
 QT_END_NAMESPACE
diff --git a/src/widgets/widgets/qlineedit.cpp b/src/widgets/widgets/qlineedit.cpp
index 3c0f0b791b..09b7687d8e 100644
--- a/src/widgets/widgets/qlineedit.cpp
+++ b/src/widgets/widgets/qlineedit.cpp
@@ -315,7 +315,7 @@ QString QLineEdit::text() const
 void QLineEdit::setText(const QString& text)
 {
     Q_D(QLineEdit);
-    d->control->setText(text);
+    d->setText(text);
 }
 
 /*!
@@ -1489,8 +1489,11 @@ bool QLineEdit::event(QEvent * e)
         } else if (e->type() == QEvent::LeaveEditFocus) {
             d->setCursorVisible(false);
             d->control->setCursorBlinkEnabled(false);
-            if (d->control->hasAcceptableInput() || d->control->fixup())
+            if (d->edited && (d->control->hasAcceptableInput()
+                              || d->control->fixup())) {
                 emit editingFinished();
+                d->edited = false;
+            }
         }
     }
 #endif
@@ -1897,7 +1900,6 @@ void QLineEdit::focusInEvent(QFocusEvent *e)
 
 /*!\reimp
 */
-
 void QLineEdit::focusOutEvent(QFocusEvent *e)
 {
     Q_D(QLineEdit);
@@ -1920,8 +1922,10 @@ void QLineEdit::focusOutEvent(QFocusEvent *e)
 #endif
     if (reason != Qt::PopupFocusReason
         || !(QApplication::activePopupWidget() && QApplication::activePopupWidget()->parentWidget() == this)) {
-            if (hasAcceptableInput() || d->control->fixup())
+            if (d->edited && (hasAcceptableInput() || d->control->fixup())) {
                 emit editingFinished();
+                d->edited = false;
+            }
     }
 #ifdef QT_KEYPAD_NAVIGATION
     d->control->setCancelText(QString());
diff --git a/src/widgets/widgets/qlineedit_p.cpp b/src/widgets/widgets/qlineedit_p.cpp
index 2a5a0c34dc..21e70db0ac 100644
--- a/src/widgets/widgets/qlineedit_p.cpp
+++ b/src/widgets/widgets/qlineedit_p.cpp
@@ -127,6 +127,7 @@ void QLineEditPrivate::_q_handleWindowActivate()
 void QLineEditPrivate::_q_textEdited(const QString &text)
 {
     Q_Q(QLineEdit);
+    edited = true;
     emit q->textEdited(text);
 #if QT_CONFIG(completer)
     if (control->completer()
@@ -272,6 +273,12 @@ void QLineEditPrivate::setCursorVisible(bool visible)
         q->update();
 }
 
+void QLineEditPrivate::setText(const QString& text)
+{
+    edited = true;
+    control->setText(text);
+}
+
 void QLineEditPrivate::updatePasswordEchoEditing(bool editing)
 {
     Q_Q(QLineEdit);
diff --git a/src/widgets/widgets/qlineedit_p.h b/src/widgets/widgets/qlineedit_p.h
index 12a2f1ddfd..3f98aab901 100644
--- a/src/widgets/widgets/qlineedit_p.h
+++ b/src/widgets/widgets/qlineedit_p.h
@@ -85,7 +85,7 @@ class Q_AUTOTEST_EXPORT QLineEditIconButton : public QToolButton
     Q_OBJECT
     Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)
 public:
-    explicit QLineEditIconButton(QWidget *parent =  0);
+    explicit QLineEditIconButton(QWidget *parent =  nullptr);
 
     qreal opacity() const { return m_opacity; }
     void setOpacity(qreal value);
@@ -134,7 +134,7 @@ public:
     };
 
     struct SideWidgetEntry {
-        explicit SideWidgetEntry(QWidget *w = 0, QAction *a = 0, int _flags = 0) : widget(w), action(a), flags(_flags) {}
+        explicit SideWidgetEntry(QWidget *w = nullptr, QAction *a = nullptr, int _flags = 0) : widget(w), action(a), flags(_flags) {}
 
         QWidget *widget;
         QAction *action;
@@ -151,7 +151,7 @@ public:
 
     QLineEditPrivate()
         : control(0), frame(1), contextMenuEnabled(1), cursorVisible(0),
-        dragEnabled(0), clickCausedFocus(0), hscroll(0), vscroll(0),
+        dragEnabled(0), clickCausedFocus(0), edited(0), hscroll(0), vscroll(0),
         alignment(Qt::AlignLeading | Qt::AlignVCenter),
         leftTextMargin(0), topTextMargin(0), rightTextMargin(0), bottomTextMargin(0),
         lastTextSize(0), mouseYThreshold(0)
@@ -176,6 +176,7 @@ public:
     bool inSelection(int x) const;
     QRect cursorRect() const;
     void setCursorVisible(bool visible);
+    void setText(const QString& text);
 
     void updatePasswordEchoEditing(bool);
 
@@ -202,6 +203,7 @@ public:
     uint cursorVisible : 1;
     uint dragEnabled : 1;
     uint clickCausedFocus : 1;
+    uint edited : 1;
     int hscroll;
     int vscroll;
     uint alignment;
diff --git a/src/widgets/widgets/qmainwindowlayout_p.h b/src/widgets/widgets/qmainwindowlayout_p.h
index a375d856bb..7cdb8ead2f 100644
--- a/src/widgets/widgets/qmainwindowlayout_p.h
+++ b/src/widgets/widgets/qmainwindowlayout_p.h
@@ -122,7 +122,7 @@ template <typename Layout>
 QCursor QMainWindowLayoutSeparatorHelper<Layout>::separatorCursor(const QList<int> &path)
 {
     const QDockAreaLayoutInfo *info = layout()->dockAreaLayoutInfo()->info(path);
-    Q_ASSERT(info != 0);
+    Q_ASSERT(info != nullptr);
     if (path.size() == 1) { // is this the "top-level" separator which separates a dock area
                             // from the central widget?
         switch (path.first()) {
@@ -334,7 +334,7 @@ class QDockWidgetGroupWindow : public QWidget
 {
     Q_OBJECT
 public:
-    explicit QDockWidgetGroupWindow(QWidget* parent = 0, Qt::WindowFlags f = 0)
+    explicit QDockWidgetGroupWindow(QWidget* parent = nullptr, Qt::WindowFlags f = nullptr)
         : QWidget(parent, f) {}
     QDockAreaLayoutInfo *layoutInfo() const;
     const QDockAreaLayoutInfo *tabLayoutInfo() const;
@@ -430,7 +430,7 @@ public:
     bool isValid() const;
 
     QLayoutItem *plug(const QList<int> &path);
-    QLayoutItem *unplug(const QList<int> &path, QMainWindowLayoutState *savedState = 0);
+    QLayoutItem *unplug(const QList<int> &path, QMainWindowLayoutState *savedState = nullptr);
 
     void saveState(QDataStream &stream) const;
     bool checkFormat(QDataStream &stream);
diff --git a/src/widgets/widgets/qmdiarea.cpp b/src/widgets/widgets/qmdiarea.cpp
index 8b201dcf9d..fe3d1663a8 100644
--- a/src/widgets/widgets/qmdiarea.cpp
+++ b/src/widgets/widgets/qmdiarea.cpp
@@ -1988,9 +1988,11 @@ QMdiSubWindow *QMdiArea::addSubWindow(QWidget *widget, Qt::WindowFlags windowFla
         Q_ASSERT(child->testAttribute(Qt::WA_DeleteOnClose));
     }
 
+    d->appendChild(child);
+
     if (childFocus)
         childFocus->setFocus();
-    d->appendChild(child);
+
     return child;
 }
 
diff --git a/src/widgets/widgets/qmdiarea_p.h b/src/widgets/widgets/qmdiarea_p.h
index fd00118ec6..0a6368044a 100644
--- a/src/widgets/widgets/qmdiarea_p.h
+++ b/src/widgets/widgets/qmdiarea_p.h
@@ -183,7 +183,7 @@ public:
     int tabToPreviousTimerId;
 
     // Slots.
-    void _q_deactivateAllWindows(QMdiSubWindow *aboutToActivate = 0);
+    void _q_deactivateAllWindows(QMdiSubWindow *aboutToActivate = nullptr);
     void _q_processWindowStateChanged(Qt::WindowStates oldState, Qt::WindowStates newState);
     void _q_currentTabChanged(int index);
     void _q_closeTab(int index);
@@ -198,7 +198,7 @@ public:
     void activateCurrentWindow();
     void activateHighlightedWindow();
     void emitWindowActivated(QMdiSubWindow *child);
-    void resetActiveWindow(QMdiSubWindow *child = 0);
+    void resetActiveWindow(QMdiSubWindow *child = nullptr);
     void updateActiveWindow(int removedIndex, bool activeRemoved);
     void updateScrollBars();
     void internalRaise(QMdiSubWindow *child) const;
diff --git a/src/widgets/widgets/qmdisubwindow_p.h b/src/widgets/widgets/qmdisubwindow_p.h
index 719984c8d4..d3513b6708 100644
--- a/src/widgets/widgets/qmdisubwindow_p.h
+++ b/src/widgets/widgets/qmdisubwindow_p.h
@@ -78,7 +78,7 @@ template<typename T>
 class ControlElement : public T
 {
 public:
-    ControlElement(QMdiSubWindow *child) : T(child, 0)
+    ControlElement(QMdiSubWindow *child) : T(child, nullptr)
     {
         Q_ASSERT(child);
         mdiChild = child;
@@ -88,7 +88,7 @@ public:
     {
         if (classname && strcmp(classname, "ControlElement") == 0)
             return this;
-        return 0;
+        return nullptr;
     }
 
     QPointer<QMdiSubWindow> mdiChild;
@@ -102,7 +102,7 @@ public:
 
 #if QT_CONFIG(menubar)
     void showButtonsInMenuBar(QMenuBar *menuBar);
-    void removeButtonsFromMenuBar(QMenuBar *menuBar = 0);
+    void removeButtonsFromMenuBar(QMenuBar *menuBar = nullptr);
     QMenuBar *menuBar() const { return m_menuBar; }
 #endif
     void updateWindowIcon(const QIcon &windowIcon);
@@ -331,7 +331,7 @@ public:
     inline bool autoRaise() const
     {
         Q_Q(const QMdiSubWindow);
-        return q->style()->styleHint(QStyle::SH_TitleBar_AutoRaise, 0, q);
+        return q->style()->styleHint(QStyle::SH_TitleBar_AutoRaise, nullptr, q);
     }
 
     inline bool isResizeOperation() const
diff --git a/src/widgets/widgets/qmenu_p.h b/src/widgets/widgets/qmenu_p.h
index 1821181535..ef152cd71b 100644
--- a/src/widgets/widgets/qmenu_p.h
+++ b/src/widgets/widgets/qmenu_p.h
@@ -135,9 +135,9 @@ public:
     void initialize(QMenu *menu)
     {
         m_menu = menu;
-        m_uni_directional = menu->style()->styleHint(QStyle::SH_Menu_SubMenuUniDirection, 0, menu);
-        m_uni_dir_fail_at_count = short(menu->style()->styleHint(QStyle::SH_Menu_SubMenuUniDirectionFailCount, 0, menu));
-        m_select_other_actions = menu->style()->styleHint(QStyle::SH_Menu_SubMenuSloppySelectOtherActions, 0 , menu);
+        m_uni_directional = menu->style()->styleHint(QStyle::SH_Menu_SubMenuUniDirection, nullptr, menu);
+        m_uni_dir_fail_at_count = short(menu->style()->styleHint(QStyle::SH_Menu_SubMenuUniDirectionFailCount, nullptr, menu));
+        m_select_other_actions = menu->style()->styleHint(QStyle::SH_Menu_SubMenuSloppySelectOtherActions, nullptr , menu);
         m_timeout = short(menu->style()->styleHint(QStyle::SH_Menu_SubMenuSloppyCloseTimeout));
         m_discard_state_when_entering_parent = menu->style()->styleHint(QStyle::SH_Menu_SubMenuResetWhenReenteringParent);
         m_dont_start_time_on_leave = menu->style()->styleHint(QStyle::SH_Menu_SubMenuDontStartSloppyOnLeave);
@@ -378,7 +378,7 @@ public:
         }
         void stop()
         {
-            action = 0;
+            action = nullptr;
             timer.stop();
         }
 
diff --git a/src/widgets/widgets/qmenubar_p.h b/src/widgets/widgets/qmenubar_p.h
index c276a4512d..e3db16d190 100644
--- a/src/widgets/widgets/qmenubar_p.h
+++ b/src/widgets/widgets/qmenubar_p.h
@@ -65,9 +65,9 @@ class QMenuBarPrivate : public QWidgetPrivate
 {
     Q_DECLARE_PUBLIC(QMenuBar)
 public:
-    QMenuBarPrivate() : itemsDirty(0), currentAction(0), mouseDown(0),
+    QMenuBarPrivate() : itemsDirty(0), currentAction(nullptr), mouseDown(0),
                          closePopupMode(0), defaultPopDown(1), popupState(0), keyboardState(0), altPressed(0),
-                         doChildEffects(false), platformMenuBar(0)
+                         doChildEffects(false), platformMenuBar(nullptr)
     { }
 
     ~QMenuBarPrivate()
diff --git a/src/widgets/widgets/qscrollarea_p.h b/src/widgets/widgets/qscrollarea_p.h
index fa2e0241cf..2bdf9ed596 100644
--- a/src/widgets/widgets/qscrollarea_p.h
+++ b/src/widgets/widgets/qscrollarea_p.h
@@ -65,7 +65,7 @@ class QScrollAreaPrivate: public QAbstractScrollAreaPrivate
     Q_DECLARE_PUBLIC(QScrollArea)
 
 public:
-    QScrollAreaPrivate(): resizable(false), alignment(0){}
+    QScrollAreaPrivate(): resizable(false), alignment(nullptr){}
     void updateScrollBars();
     void updateWidgetPosition();
     QPointer<QWidget> widget;
diff --git a/src/widgets/widgets/qspinbox.cpp b/src/widgets/widgets/qspinbox.cpp
index 7d454c6359..97a3a12336 100644
--- a/src/widgets/widgets/qspinbox.cpp
+++ b/src/widgets/widgets/qspinbox.cpp
@@ -128,9 +128,10 @@ public:
     manually. The spin box supports integer values but can be extended to
     use different strings with validate(), textFromValue() and valueFromText().
 
-    Every time the value changes QSpinBox emits two valueChanged() signals,
-    one providing an int and the other a QString. The QString overload
-    provides the value with both prefix() and suffix().
+    Every time the value changes QSpinBox emits valueChanged() and
+    textChanged() signals, the former providing a int and the latter
+    a QString. The textChanged() signal provides the value with both
+    prefix() and suffix().
     The current value can be fetched with value() and set with setValue().
 
     Clicking the up/down buttons or using the keyboard accelerator's
@@ -183,12 +184,23 @@ public:
 */
 
 /*!
+    \fn void QSpinBox::textChanged(const QString &text)
+    \since 5.14
+
+    This signal is emitted whenever the spin box's text is changed.
+    The new text is passed in \a text with prefix() and suffix().
+*/
+
+#if QT_DEPRECATED_SINCE(5, 14)
+/*!
     \fn void QSpinBox::valueChanged(const QString &text)
 
     \overload
+    \obsolete Use textChanged(QString) instead
 
     The new value is passed in \a text with prefix() and suffix().
 */
+#endif
 
 /*!
     Constructs a spin box with 0 as minimum value and 99 as maximum value, a
@@ -594,9 +606,9 @@ void QSpinBox::fixup(QString &input) const
     values but can be extended to use different strings with
     validate(), textFromValue() and valueFromText().
 
-    Every time the value changes QDoubleSpinBox emits two
-    valueChanged() signals, one taking providing a double and the other
-    a QString. The QString overload provides the value with both
+    Every time the value changes QDoubleSpinBox emits valueChanged() and
+    textChanged() signals, the former providing a double and the latter
+    a QString. The textChanged() signal provides the value with both
     prefix() and suffix(). The current value can be fetched with
     value() and set with setValue().
 
@@ -644,12 +656,23 @@ void QSpinBox::fixup(QString &input) const
 */
 
 /*!
+    \fn void QDoubleSpinBox::textChanged(const QString &text)
+    \since 5.14
+
+    This signal is emitted whenever the spin box's text is changed.
+    The new text is passed in \a text with prefix() and suffix().
+*/
+
+#if QT_DEPRECATED_SINCE(5, 14)
+/*!
     \fn void QDoubleSpinBox::valueChanged(const QString &text);
 
     \overload
+    \obsolete Use textChanged(QString) instead
 
     The new value is passed in \a text with prefix() and suffix().
 */
+#endif
 
 /*!
     Constructs a spin box with 0.0 as minimum value and 99.99 as maximum value,
@@ -1072,7 +1095,13 @@ void QSpinBoxPrivate::emitSignals(EmitPolicy ep, const QVariant &old)
     if (ep != NeverEmit) {
         pendingEmit = false;
         if (ep == AlwaysEmit || value != old) {
+#if QT_DEPRECATED_SINCE(5, 14)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
             emit q->valueChanged(edit->displayText());
+QT_WARNING_POP
+#endif
+            emit q->textChanged(edit->displayText());
             emit q->valueChanged(value.toInt());
         }
     }
@@ -1223,7 +1252,13 @@ void QDoubleSpinBoxPrivate::emitSignals(EmitPolicy ep, const QVariant &old)
     if (ep != NeverEmit) {
         pendingEmit = false;
         if (ep == AlwaysEmit || value != old) {
+#if QT_DEPRECATED_SINCE(5, 14)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
             emit q->valueChanged(edit->displayText());
+QT_WARNING_POP
+#endif
+            emit q->textChanged(edit->displayText());
             emit q->valueChanged(value.toDouble());
         }
     }
diff --git a/src/widgets/widgets/qspinbox.h b/src/widgets/widgets/qspinbox.h
index d2eac903fb..762dd4a46a 100644
--- a/src/widgets/widgets/qspinbox.h
+++ b/src/widgets/widgets/qspinbox.h
@@ -106,7 +106,11 @@ public Q_SLOTS:
 
 Q_SIGNALS:
     void valueChanged(int);
+    void textChanged(const QString &);
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use textChanged(QString) instead")
     void valueChanged(const QString &);
+#endif
 
 private:
     Q_DISABLE_COPY(QSpinBox)
@@ -168,7 +172,11 @@ public Q_SLOTS:
 
 Q_SIGNALS:
     void valueChanged(double);
+    void textChanged(const QString &);
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use textChanged(QString) instead")
     void valueChanged(const QString &);
+#endif
 
 private:
     Q_DISABLE_COPY(QDoubleSpinBox)
diff --git a/src/widgets/widgets/qsplitter.cpp b/src/widgets/widgets/qsplitter.cpp
index de838a8f93..4e251de501 100644
--- a/src/widgets/widgets/qsplitter.cpp
+++ b/src/widgets/widgets/qsplitter.cpp
@@ -1793,7 +1793,7 @@ void QSplitter::setStretchFactor(int index, int stretch)
 
 QTextStream& operator<<(QTextStream& ts, const QSplitter& splitter)
 {
-    ts << splitter.saveState() << endl;
+    ts << splitter.saveState() << Qt::endl;
     return ts;
 }
 
diff --git a/src/widgets/widgets/qsplitter_p.h b/src/widgets/widgets/qsplitter_p.h
index f0d621004f..871406a51d 100644
--- a/src/widgets/widgets/qsplitter_p.h
+++ b/src/widgets/widgets/qsplitter_p.h
@@ -70,7 +70,7 @@ public:
     QWidget *widget;
     QSplitterHandle *handle;
 
-    QSplitterLayoutStruct() : sizer(-1), collapsed(false), collapsible(Default), widget(0), handle(0) {}
+    QSplitterLayoutStruct() : sizer(-1), collapsed(false), collapsible(Default), widget(nullptr), handle(nullptr) {}
     ~QSplitterLayoutStruct() { delete handle; }
     int getWidgetSize(Qt::Orientation orient);
     int getHandleSize(Qt::Orientation orient);
@@ -84,7 +84,7 @@ class QSplitterPrivate : public QFramePrivate
 public:
     QSplitterPrivate() :
 #if QT_CONFIG(rubberband)
-                         rubberBand(0),
+                         rubberBand(nullptr),
 #endif
                          opaque(true), firstShow(true),
                          childrenCollapsible(true), compatMode(false), handleWidth(-1), blockChildAdd(false), opaqueResizeSet(false) {}
@@ -140,7 +140,7 @@ class QSplitterHandlePrivate : public QWidgetPrivate
 {
     Q_DECLARE_PUBLIC(QSplitterHandle)
 public:
-    QSplitterHandlePrivate() : s(0), orient(Qt::Horizontal), mouseOffset(0), opaq(false), hover(false), pressed(false) {}
+    QSplitterHandlePrivate() : s(nullptr), orient(Qt::Horizontal), mouseOffset(0), opaq(false), hover(false), pressed(false) {}
 
     inline int pick(const QPoint &pos) const
     { return orient == Qt::Horizontal ? pos.x() : pos.y(); }
diff --git a/src/widgets/widgets/qtabbar_p.h b/src/widgets/widgets/qtabbar_p.h
index 9b798e89c9..458d486b10 100644
--- a/src/widgets/widgets/qtabbar_p.h
+++ b/src/widgets/widgets/qtabbar_p.h
@@ -92,7 +92,7 @@ public:
         drawBase(true), scrollOffset(0), hoverIndex(-1), elideModeSetByUser(false), useScrollButtonsSetByUser(false), expanding(true), closeButtonOnTabs(false),
         selectionBehaviorOnRemove(QTabBar::SelectRightTab), paintWithOffsets(true), movable(false),
         dragInProgress(false), documentMode(false), autoHide(false), changeCurrentOnDrag(false),
-        switchTabCurrentIndex(-1), switchTabTimerId(0), movingTab(0)
+        switchTabCurrentIndex(-1), switchTabTimerId(0), movingTab(nullptr)
 #if 0 // Used to be included in Qt4 for Q_WS_MAC
         , previousPressedIndex(-1)
 #endif
@@ -182,7 +182,7 @@ public:
 
     int indexAtPos(const QPoint &p) const;
 
-    inline bool isAnimated() const { Q_Q(const QTabBar); return q->style()->styleHint(QStyle::SH_Widget_Animation_Duration, 0, q) > 0; }
+    inline bool isAnimated() const { Q_Q(const QTabBar); return q->style()->styleHint(QStyle::SH_Widget_Animation_Duration, nullptr, q) > 0; }
     inline bool validIndex(int index) const { return index >= 0 && index < tabList.count(); }
     void setCurrentNextEnabledIndex(int offset);
 
diff --git a/src/widgets/widgets/qtextedit.cpp b/src/widgets/widgets/qtextedit.cpp
index 0ae63f2dd5..5f734258b2 100644
--- a/src/widgets/widgets/qtextedit.cpp
+++ b/src/widgets/widgets/qtextedit.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWidgets module of the Qt Toolkit.
@@ -366,8 +366,8 @@ void QTextEditPrivate::_q_ensureVisible(const QRectF &_rect)
     \section1 Introduction and Concepts
 
     QTextEdit is an advanced WYSIWYG viewer/editor supporting rich
-    text formatting using HTML-style tags. It is optimized to handle
-    large documents and to respond quickly to user input.
+    text formatting using HTML-style tags, or Markdown format. It is optimized
+    to handle large documents and to respond quickly to user input.
 
     QTextEdit works on paragraphs and characters. A paragraph is a
     formatted string which is word-wrapped to fit into the width of
@@ -381,7 +381,7 @@ void QTextEditPrivate::_q_ensureVisible(const QRectF &_rect)
     QTextEdit can display images, lists and tables. If the text is
     too large to view within the text edit's viewport, scroll bars will
     appear. The text edit can load both plain text and rich text files.
-    Rich text is described using a subset of HTML 4 markup, refer to the
+    Rich text can be described using a subset of HTML 4 markup; refer to the
     \l {Supported HTML Subset} page for more information.
 
     If you just need to display a small piece of rich text use QLabel.
@@ -401,12 +401,19 @@ void QTextEditPrivate::_q_ensureVisible(const QRectF &_rect)
     QTextEdit can display a large HTML subset, including tables and
     images.
 
-    The text is set or replaced using setHtml() which deletes any
+    The text can be set or replaced using \l setHtml() which deletes any
     existing text and replaces it with the text passed in the
     setHtml() call. If you call setHtml() with legacy HTML, and then
     call toHtml(), the text that is returned may have different markup,
     but will render the same. The entire text can be deleted with clear().
 
+    Text can also be set or replaced using \l setMarkdown(), and the same
+    caveats apply: if you then call \l toMarkdown(), the text that is returned
+    may be different, but the meaning is preserved as much as possible.
+    Markdown with some embedded HTML can be parsed, with the same limitations
+    that \l setHtml() has; but \l toMarkdown() only writes "pure" Markdown,
+    without any embedded HTML.
+
     Text itself can be inserted using the QTextCursor class or using the
     convenience functions insertHtml(), insertPlainText(), append() or
     paste(). QTextCursor is also able to insert complex objects like tables
@@ -1213,6 +1220,56 @@ QString QTextEdit::toHtml() const
 }
 #endif
 
+#if QT_CONFIG(textmarkdownreader) && QT_CONFIG(textmarkdownwriter)
+/*!
+    \property QTextEdit::markdown
+
+    This property provides a Markdown interface to the text of the text edit.
+
+    \c toMarkdown() returns the text of the text edit as "pure" Markdown,
+    without any embedded HTML formatting. Some features that QTextDocument
+    supports (such as the use of specific colors and named fonts) cannot be
+    expressed in "pure" Markdown, and they will be omitted.
+
+    \c setMarkdown() changes the text of the text edit.  Any previous text is
+    removed and the undo/redo history is cleared. The input text is
+    interpreted as rich text in Markdown format.
+
+    Parsing of HTML included in the \a markdown string is handled in the same
+    way as in \l setHtml; however, Markdown formatting inside HTML blocks is
+    not supported.
+
+    Some features of the parser can be enabled or disabled via the \a features
+    argument:
+
+    \value MarkdownNoHTML
+           Any HTML tags in the Markdown text will be discarded
+    \value MarkdownDialectCommonMark
+           The parser supports only the features standardized by CommonMark
+    \value MarkdownDialectGitHub
+           The parser supports the GitHub dialect
+
+    The default is \c MarkdownDialectGitHub.
+
+    \sa plainText, html, QTextDocument::toMarkdown(), QTextDocument::setMarkdown()
+*/
+#endif
+
+#if QT_CONFIG(textmarkdownreader)
+void QTextEdit::setMarkdown(const QString &markdown)
+{
+    Q_D(const QTextEdit);
+    d->control->setMarkdown(markdown);
+}
+#endif
+
+#if QT_CONFIG(textmarkdownwriter)
+QString QTextEdit::toMarkdown(QTextDocument::MarkdownFeatures features) const
+{
+    Q_D(const QTextEdit);
+    return d->control->toMarkdown(features);
+}
+#endif
 
 /*! \reimp
 */
diff --git a/src/widgets/widgets/qtextedit.h b/src/widgets/widgets/qtextedit.h
index 3aa23aaace..3b7e610786 100644
--- a/src/widgets/widgets/qtextedit.h
+++ b/src/widgets/widgets/qtextedit.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWidgets module of the Qt Toolkit.
@@ -71,6 +71,9 @@ class Q_WIDGETS_EXPORT QTextEdit : public QAbstractScrollArea
     QDOC_PROPERTY(QTextOption::WrapMode wordWrapMode READ wordWrapMode WRITE setWordWrapMode)
     Q_PROPERTY(int lineWrapColumnOrWidth READ lineWrapColumnOrWidth WRITE setLineWrapColumnOrWidth)
     Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly)
+#if QT_CONFIG(textmarkdownreader) && QT_CONFIG(textmarkdownwriter)
+    Q_PROPERTY(QString markdown READ toMarkdown WRITE setMarkdown NOTIFY textChanged)
+#endif
 #ifndef QT_NO_TEXTHTMLPARSER
     Q_PROPERTY(QString html READ toHtml WRITE setHtml NOTIFY textChanged USER true)
 #endif
@@ -174,6 +177,9 @@ public:
 #ifndef QT_NO_TEXTHTMLPARSER
     QString toHtml() const;
 #endif
+#if QT_CONFIG(textmarkdownwriter)
+    QString toMarkdown(QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub) const;
+#endif
 
     void ensureCursorVisible();
 
@@ -238,6 +244,9 @@ public Q_SLOTS:
 #ifndef QT_NO_TEXTHTMLPARSER
     void setHtml(const QString &text);
 #endif
+#if QT_CONFIG(textmarkdownreader)
+    void setMarkdown(const QString &markdown);
+#endif
     void setText(const QString &text);
 
 #ifndef QT_NO_CLIPBOARD
diff --git a/src/widgets/widgets/qtoolbar_p.h b/src/widgets/widgets/qtoolbar_p.h
index 4db75762c8..8cb5850903 100644
--- a/src/widgets/widgets/qtoolbar_p.h
+++ b/src/widgets/widgets/qtoolbar_p.h
@@ -73,7 +73,7 @@ public:
         : explicitIconSize(false), explicitToolButtonStyle(false), movable(true), floatable(true),
           allowedAreas(Qt::AllToolBarAreas), orientation(Qt::Horizontal),
           toolButtonStyle(Qt::ToolButtonIconOnly),
-          layout(0), state(0)
+          layout(nullptr), state(nullptr)
 #ifdef Q_OS_OSX
         , macWindowDragging(false)
 #endif
diff --git a/src/widgets/widgets/qtoolbararealayout_p.h b/src/widgets/widgets/qtoolbararealayout_p.h
index 17747ef29b..5df95a3038 100644
--- a/src/widgets/widgets/qtoolbararealayout_p.h
+++ b/src/widgets/widgets/qtoolbararealayout_p.h
@@ -69,7 +69,7 @@ class QStyleOptionToolBar;
 class QToolBarAreaLayoutItem
 {
 public:
-    QToolBarAreaLayoutItem(QLayoutItem *item = 0)
+    QToolBarAreaLayoutItem(QLayoutItem *item = nullptr)
         : widgetItem(item), pos(0), size(-1), preferredSize(-1), gap(false) {}
 
     bool skip() const;
diff --git a/src/widgets/widgets/qtoolbarlayout_p.h b/src/widgets/widgets/qtoolbarlayout_p.h
index a788d30450..b5dc121b93 100644
--- a/src/widgets/widgets/qtoolbarlayout_p.h
+++ b/src/widgets/widgets/qtoolbarlayout_p.h
@@ -79,7 +79,7 @@ class QToolBarLayout : public QLayout
     Q_OBJECT
 
 public:
-    QToolBarLayout(QWidget *parent = 0);
+    QToolBarLayout(QWidget *parent = nullptr);
     ~QToolBarLayout();
 
     void addItem(QLayoutItem *item) override;
diff --git a/src/widgets/widgets/qwidgetlinecontrol_p.h b/src/widgets/widgets/qwidgetlinecontrol_p.h
index f4df95865d..940a17714f 100644
--- a/src/widgets/widgets/qwidgetlinecontrol_p.h
+++ b/src/widgets/widgets/qwidgetlinecontrol_p.h
@@ -91,7 +91,7 @@ public:
         m_dragEnabled(0), m_echoMode(0), m_textDirty(0), m_selDirty(0),
         m_validInput(1), m_blinkStatus(0), m_blinkEnabled(false), m_blinkTimer(0), m_deleteAllTimer(0),
         m_ascent(0), m_maxLength(32767), m_lastCursorPos(-1),
-        m_tripleClickTimer(0), m_maskData(0), m_modifiedState(0), m_undoState(0),
+        m_tripleClickTimer(0), m_maskData(nullptr), m_modifiedState(0), m_undoState(0),
         m_selstart(0), m_selend(0), m_passwordEchoEditing(false)
         , m_passwordEchoTimer(0)
         , m_passwordMaskDelay(-1)
@@ -103,7 +103,7 @@ public:
         , m_passwordMaskDelayOverride(-1)
 #endif
         , m_keyboardScheme(0)
-        , m_accessibleObject(0)
+        , m_accessibleObject(nullptr)
     {
         init(txt);
     }
diff --git a/src/widgets/widgets/qwidgetresizehandler_p.h b/src/widgets/widgets/qwidgetresizehandler_p.h
index 89bc759cc2..df3ac7cb8a 100644
--- a/src/widgets/widgets/qwidgetresizehandler_p.h
+++ b/src/widgets/widgets/qwidgetresizehandler_p.h
@@ -73,7 +73,7 @@ public:
         Any        = Move|Resize
     };
 
-    explicit QWidgetResizeHandler(QWidget *parent, QWidget *cw = 0);
+    explicit QWidgetResizeHandler(QWidget *parent, QWidget *cw = nullptr);
     void setActive(bool b) { setActive(Any, b); }
     void setActive(Action ac, bool b);
     bool isActive() const { return isActive(Any); }
diff --git a/src/widgets/widgets/qwidgettextcontrol.cpp b/src/widgets/widgets/qwidgettextcontrol.cpp
index 07d631cfe9..f85c7cdc6d 100644
--- a/src/widgets/widgets/qwidgettextcontrol.cpp
+++ b/src/widgets/widgets/qwidgettextcontrol.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWidgets module of the Qt Toolkit.
@@ -491,6 +491,11 @@ void QWidgetTextControlPrivate::setContent(Qt::TextFormat format, const QString
             formatCursor.select(QTextCursor::Document);
             formatCursor.setCharFormat(charFormatForInsertion);
             formatCursor.endEditBlock();
+#if QT_CONFIG(textmarkdownreader)
+        } else if (format == Qt::MarkdownText) {
+            doc->setMarkdown(text);
+            doc->setUndoRedoEnabled(false);
+#endif
         } else {
 #ifndef QT_NO_TEXTHTMLPARSER
             doc->setHtml(text);
@@ -1194,6 +1199,14 @@ void QWidgetTextControl::setPlainText(const QString &text)
     d->setContent(Qt::PlainText, text);
 }
 
+#if QT_CONFIG(textmarkdownreader)
+void QWidgetTextControl::setMarkdown(const QString &text)
+{
+    Q_D(QWidgetTextControl);
+    d->setContent(Qt::MarkdownText, text);
+}
+#endif
+
 void QWidgetTextControl::setHtml(const QString &text)
 {
     Q_D(QWidgetTextControl);
@@ -3121,6 +3134,13 @@ QString QWidgetTextControl::toHtml() const
 }
 #endif
 
+#ifndef QT_NO_TEXTHTMLPARSER
+QString QWidgetTextControl::toMarkdown(QTextDocument::MarkdownFeatures features) const
+{
+    return document()->toMarkdown(features);
+}
+#endif
+
 void QWidgetTextControlPrivate::append(const QString &text, Qt::TextFormat format)
 {
     QTextCursor tmp(doc);
diff --git a/src/widgets/widgets/qwidgettextcontrol_p.h b/src/widgets/widgets/qwidgettextcontrol_p.h
index 202ba36454..e521e7b356 100644
--- a/src/widgets/widgets/qwidgettextcontrol_p.h
+++ b/src/widgets/widgets/qwidgettextcontrol_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWidgets module of the Qt Toolkit.
@@ -97,9 +97,9 @@ class Q_WIDGETS_EXPORT QWidgetTextControl : public QInputControl
     Q_PROPERTY(bool openExternalLinks READ openExternalLinks WRITE setOpenExternalLinks)
     Q_PROPERTY(bool ignoreUnusedNavigationEvents READ ignoreUnusedNavigationEvents WRITE setIgnoreUnusedNavigationEvents)
 public:
-    explicit QWidgetTextControl(QObject *parent = 0);
-    explicit QWidgetTextControl(const QString &text, QObject *parent = 0);
-    explicit QWidgetTextControl(QTextDocument *doc, QObject *parent = 0);
+    explicit QWidgetTextControl(QObject *parent = nullptr);
+    explicit QWidgetTextControl(const QString &text, QObject *parent = nullptr);
+    explicit QWidgetTextControl(QTextDocument *doc, QObject *parent = nullptr);
     virtual ~QWidgetTextControl();
 
     void setDocument(QTextDocument *document);
@@ -116,18 +116,21 @@ public:
     void setCurrentCharFormat(const QTextCharFormat &format);
     QTextCharFormat currentCharFormat() const;
 
-    bool find(const QString &exp, QTextDocument::FindFlags options = 0);
+    bool find(const QString &exp, QTextDocument::FindFlags options = nullptr);
 #ifndef QT_NO_REGEXP
-    bool find(const QRegExp &exp, QTextDocument::FindFlags options = 0);
+    bool find(const QRegExp &exp, QTextDocument::FindFlags options = nullptr);
 #endif
 #if QT_CONFIG(regularexpression)
-    bool find(const QRegularExpression &exp, QTextDocument::FindFlags options = 0);
+    bool find(const QRegularExpression &exp, QTextDocument::FindFlags options = nullptr);
 #endif
 
     QString toPlainText() const;
 #ifndef QT_NO_TEXTHTMLPARSER
     QString toHtml() const;
 #endif
+#if QT_CONFIG(textmarkdownwriter)
+    QString toMarkdown(QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub) const;
+#endif
 
     virtual void ensureCursorVisible();
 
@@ -194,6 +197,9 @@ public:
 
 public Q_SLOTS:
     void setPlainText(const QString &text);
+#if QT_CONFIG(textmarkdownreader)
+    void setMarkdown(const QString &text);
+#endif
     void setHtml(const QString &text);
 
 #ifndef QT_NO_CLIPBOARD
@@ -243,11 +249,11 @@ public:
     QPalette palette() const;
     void setPalette(const QPalette &pal);
 
-    virtual void processEvent(QEvent *e, const QMatrix &matrix, QWidget *contextWidget = 0);
-    void processEvent(QEvent *e, const QPointF &coordinateOffset = QPointF(), QWidget *contextWidget = 0);
+    virtual void processEvent(QEvent *e, const QMatrix &matrix, QWidget *contextWidget = nullptr);
+    void processEvent(QEvent *e, const QPointF &coordinateOffset = QPointF(), QWidget *contextWidget = nullptr);
 
     // control methods
-    void drawContents(QPainter *painter, const QRectF &rect = QRectF(), QWidget *widget = 0);
+    void drawContents(QPainter *painter, const QRectF &rect = QRectF(), QWidget *widget = nullptr);
 
     void setFocus(bool focus, Qt::FocusReason = Qt::OtherFocusReason);
 
diff --git a/src/widgets/widgets/qwidgettextcontrol_p_p.h b/src/widgets/widgets/qwidgettextcontrol_p_p.h
index 232dab180f..6ccdfafe2b 100644
--- a/src/widgets/widgets/qwidgettextcontrol_p_p.h
+++ b/src/widgets/widgets/qwidgettextcontrol_p_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWidgets module of the Qt Toolkit.
@@ -89,9 +89,9 @@ public:
     void createAutoBulletList();
 
     void init(Qt::TextFormat format = Qt::RichText, const QString &text = QString(),
-              QTextDocument *document = 0);
+              QTextDocument *document = nullptr);
     void setContent(Qt::TextFormat format = Qt::RichText, const QString &text = QString(),
-                    QTextDocument *document = 0);
+                    QTextDocument *document = nullptr);
     void startDrag();
 
     void paste(const QMimeData *source);
diff --git a/src/winmain/winmain.pro b/src/winmain/winmain.pro
index 9cb6ab0c59..1f54c846ec 100644
--- a/src/winmain/winmain.pro
+++ b/src/winmain/winmain.pro
@@ -23,7 +23,7 @@ winrt {
 } else {
     CONFIG -= qt
     SOURCES = qtmain_win.cpp
-    LIBS += -lshell32
+    QMAKE_USE_PRIVATE += shell32
 }
 
 load(qt_installs)
diff --git a/src/xml/doc/snippets/code/src_xml_dom_qdom.cpp b/src/xml/doc/snippets/code/src_xml_dom_qdom.cpp
index 2d18e0e537..f7d81f676f 100644
--- a/src/xml/doc/snippets/code/src_xml_dom_qdom.cpp
+++ b/src/xml/doc/snippets/code/src_xml_dom_qdom.cpp
@@ -74,7 +74,7 @@ QDomNode n = d.firstChild();
 while (!n.isNull()) {
     if (n.isElement()) {
         QDomElement e = n.toElement();
-        cout << "Element name: " << e.tagName() << endl;
+        cout << "Element name: " << e.tagName() << Qt::endl;
         break;
     }
     n = n.nextSibling();
@@ -126,10 +126,10 @@ QDomElement element4 = document.createElement("MyElement");
 QDomElement e = //...
 //...
 QDomAttr a = e.attributeNode("href");
-cout << a.value() << endl;                // prints "http://qt-project.org"
+cout << a.value() << Qt::endl;                // prints "http://qt-project.org"
 a.setValue("http://qt-project.org/doc"); // change the node's attribute
 QDomAttr a2 = e.attributeNode("href");
-cout << a2.value() << endl;               // prints "http://qt-project.org/doc"
+cout << a2.value() << Qt::endl;               // prints "http://qt-project.org/doc"
 //! [8]
 
 
@@ -201,7 +201,7 @@ QDomNode n = docElem.firstChild();
 while(!n.isNull()) {
     QDomElement e = n.toElement(); // try to convert the node to an element.
     if(!e.isNull()) {
-        cout << qPrintable(e.tagName()) << endl; // the node really is an element.
+        cout << qPrintable(e.tagName()) << Qt::endl; // the node really is an element.
     }
     n = n.nextSibling();
 }
diff --git a/src/xml/dom/qdom.cpp b/src/xml/dom/qdom.cpp
index 0516d426e5..6498d53b96 100644
--- a/src/xml/dom/qdom.cpp
+++ b/src/xml/dom/qdom.cpp
@@ -3598,7 +3598,7 @@ void QDomDocumentTypePrivate::save(QTextStream& s, int, int indent) const
     }
 
     if (entities->length()>0 || notations->length()>0) {
-        s << " [" << endl;
+        s << " [" << Qt::endl;
 
         QHash<QString, QDomNodePrivate *>::const_iterator it2 = notations->map.constBegin();
         for (; it2 != notations->map.constEnd(); ++it2)
@@ -3611,7 +3611,7 @@ void QDomDocumentTypePrivate::save(QTextStream& s, int, int indent) const
         s << ']';
     }
 
-    s << '>' << endl;
+    s << '>' << Qt::endl;
 }
 
 /**************************************************************
@@ -4627,7 +4627,7 @@ void QDomElementPrivate::save(QTextStream& s, int depth, int indent) const
 
             /* -1 disables new lines. */
             if (indent != -1)
-                s << endl;
+                s << Qt::endl;
         }
         QDomNodePrivate::save(s, depth + 1, indent); if (!last->isText())
             s << QString(indent < 1 ? 0 : depth * indent, QLatin1Char(' '));
@@ -4639,7 +4639,7 @@ void QDomElementPrivate::save(QTextStream& s, int depth, int indent) const
     if (!(next && next->isText())) {
         /* -1 disables new lines. */
         if (indent != -1)
-            s << endl;
+            s << Qt::endl;
     }
 }
 
@@ -5329,7 +5329,7 @@ void QDomCommentPrivate::save(QTextStream& s, int depth, int indent) const
     s << "-->";
 
     if (!(next && next->isText()))
-        s << endl;
+        s << Qt::endl;
 }
 
 /**************************************************************
@@ -5552,7 +5552,7 @@ void QDomNotationPrivate::save(QTextStream& s, int, int) const
     }  else {
         s << "SYSTEM " << quotedValue(m_sys);
     }
-    s << '>' << endl;
+    s << '>' << Qt::endl;
 }
 
 /**************************************************************
@@ -5733,7 +5733,7 @@ void QDomEntityPrivate::save(QTextStream& s, int, int) const
         _name = QLatin1String("% ") + _name.mid(1);
 
     if (m_sys.isNull() && m_pub.isNull()) {
-        s << "<!ENTITY " << _name << " \"" << encodeEntity(value.toUtf8()) << "\">" << endl;
+        s << "<!ENTITY " << _name << " \"" << encodeEntity(value.toUtf8()) << "\">" << Qt::endl;
     } else {
         s << "<!ENTITY " << _name << ' ';
         if (m_pub.isNull()) {
@@ -5744,7 +5744,7 @@ void QDomEntityPrivate::save(QTextStream& s, int, int) const
         if (! m_notationName.isNull()) {
             s << " NDATA " << m_notationName;
         }
-        s << '>' << endl;
+        s << '>' << Qt::endl;
     }
 }
 
@@ -6014,7 +6014,7 @@ QDomNodePrivate* QDomProcessingInstructionPrivate::cloneNode(bool deep)
 
 void QDomProcessingInstructionPrivate::save(QTextStream& s, int, int) const
 {
-    s << "<?" << name << ' ' << value << "?>" << endl;
+    s << "<?" << name << ' ' << value << "?>" << Qt::endl;
 }
 
 /**************************************************************
diff --git a/src/xml/sax/qxml.h b/src/xml/sax/qxml.h
index 94dc8dfb8e..9be14bd7a9 100644
--- a/src/xml/sax/qxml.h
+++ b/src/xml/sax/qxml.h
@@ -116,16 +116,14 @@ class Q_XML_EXPORT QXmlAttributes
 {
 public:
     QXmlAttributes();
-#ifdef Q_COMPILER_DEFAULT_MEMBERS
     QXmlAttributes(const QXmlAttributes &) = default;
-    QXmlAttributes(QXmlAttributes &&) Q_DECL_NOTHROW = default;
+    QXmlAttributes(QXmlAttributes &&) noexcept = default;
     QXmlAttributes &operator=(const QXmlAttributes &) = default;
-    QXmlAttributes &operator=(QXmlAttributes &&) Q_DECL_NOTHROW = default;
-#endif // default members
+    QXmlAttributes &operator=(QXmlAttributes &&) noexcept = default;
 
     QT6_NOT_VIRTUAL ~QXmlAttributes();
 
-    void swap(QXmlAttributes &other) Q_DECL_NOTHROW
+    void swap(QXmlAttributes &other) noexcept
     {
         qSwap(attList, other.attList);
         qSwap(d, other.d);
diff --git a/src/xml/sax/qxml_p.h b/src/xml/sax/qxml_p.h
index 98dc2aea0c..eb6135db04 100644
--- a/src/xml/sax/qxml_p.h
+++ b/src/xml/sax/qxml_p.h
@@ -229,7 +229,7 @@ private:
     // for the DTD currently being parsed.
     static const int dtdRecursionLimit = 2;
     // The maximum amount of characters an entity value may contain, after expansion.
-    static const int entityCharacterLimit = 1024;
+    static const int entityCharacterLimit = 4096;
 
     const QString &string();
     void stringClear();
diff --git a/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp b/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
index b864b065e6..b5486307a7 100644
--- a/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
+++ b/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
@@ -127,14 +127,11 @@ void tst_QtConcurrentMap::map()
         QtConcurrent::map(numberList.begin(), numberList.end(), &Number::multiplyBy2).waitForFinished();
         QCOMPARE(numberList, QList<Number>() << 4 << 8 << 12);
 
-#ifdef Q_COMPILER_LAMBDA
         // lambda
         QtConcurrent::map(list, [](int &x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 128 << 256 << 384);
         QtConcurrent::map(list.begin(), list.end(), [](int &x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 256 << 512 << 768);
-#endif
-
     }
 
     // functors don't take arguments by reference, making these no-ops
@@ -160,13 +157,11 @@ void tst_QtConcurrentMap::map()
         QtConcurrent::map(list.begin(), list.end(), multiplyBy2Immutable).waitForFinished();
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
 
-#ifdef Q_COMPILER_LAMBDA
         // lambda
         QtConcurrent::map(list, [](int x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
         QtConcurrent::map(list.begin(), list.end(), [](int x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
-#endif
     }
 
     // Linked lists and forward iterators
@@ -2026,12 +2021,12 @@ int fn(int &i)
     return i;
 }
 
-int fnConstNoExcept(const int &i) Q_DECL_NOTHROW
+int fnConstNoExcept(const int &i) noexcept
 {
     return i;
 }
 
-int fnNoExcept(int &i) Q_DECL_NOTHROW
+int fnNoExcept(int &i) noexcept
 {
     return i;
 }
@@ -2046,12 +2041,12 @@ QString changeType(int &)
     return QString();
 }
 
-QString changeTypeConstNoExcept(const int &) Q_DECL_NOTHROW
+QString changeTypeConstNoExcept(const int &) noexcept
 {
     return QString();
 }
 
-QString changeTypeNoExcept(int &) Q_DECL_NOTHROW
+QString changeTypeNoExcept(int &) noexcept
 {
     return QString();
 }
@@ -2066,12 +2061,12 @@ int changeTypeQStringList(QStringList &)
     return 0;
 }
 
-int changeTypeQStringListConstNoExcept(const QStringList &) Q_DECL_NOTHROW
+int changeTypeQStringListConstNoExcept(const QStringList &) noexcept
 {
     return 0;
 }
 
-int changeTypeQStringListNoExcept(QStringList &) Q_DECL_NOTHROW
+int changeTypeQStringListNoExcept(QStringList &) noexcept
 {
     return 0;
 }
@@ -2101,22 +2096,22 @@ public:
         return QString();
     }
 
-    MemFnTester fnNoExcept() Q_DECL_NOTHROW
+    MemFnTester fnNoExcept() noexcept
     {
         return MemFnTester();
     }
 
-    MemFnTester fnConstNoExcept() const Q_DECL_NOTHROW
+    MemFnTester fnConstNoExcept() const noexcept
     {
         return MemFnTester();
     }
 
-    QString changeTypeNoExcept() Q_DECL_NOTHROW
+    QString changeTypeNoExcept() noexcept
     {
         return QString();
     }
 
-    QString changeTypeConstNoExcept() const Q_DECL_NOTHROW
+    QString changeTypeConstNoExcept() const noexcept
     {
         return QString();
     }
diff --git a/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp b/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
index 1596a9fafd..39d17e0a24 100644
--- a/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
+++ b/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
@@ -48,12 +48,8 @@ private slots:
 #ifndef QT_NO_EXCEPTIONS
     void exceptions();
 #endif
-#ifdef Q_COMPILER_DECLTYPE
     void functor();
-#endif
-#ifdef Q_COMPILER_LAMBDA
     void lambda();
-#endif
 };
 
 void light()
@@ -126,23 +122,23 @@ public:
 class ANoExcept
 {
 public:
-    int member0() Q_DECL_NOTHROW { return 10; }
-    int member1(int in) Q_DECL_NOTHROW { return in; }
+    int member0() noexcept { return 10; }
+    int member1(int in) noexcept { return in; }
 
     typedef int result_type;
-    int operator()() Q_DECL_NOTHROW { return 10; }
-    int operator()(int in) Q_DECL_NOTHROW { return in; }
+    int operator()() noexcept { return 10; }
+    int operator()(int in) noexcept { return in; }
 };
 
 class AConstNoExcept
 {
 public:
-    int member0() const Q_DECL_NOTHROW { return 10; }
-    int member1(int in) const Q_DECL_NOTHROW { return in; }
+    int member0() const noexcept { return 10; }
+    int member1(int in) const noexcept { return in; }
 
     typedef int result_type;
-    int operator()() const Q_DECL_NOTHROW { return 10; }
-    int operator()(int in) const Q_DECL_NOTHROW { return in; }
+    int operator()() const noexcept { return 10; }
+    int operator()(int in) const noexcept { return in; }
 };
 
 void tst_QtConcurrentRun::returnValue()
@@ -648,7 +644,6 @@ void tst_QtConcurrentRun::exceptions()
 }
 #endif
 
-#ifdef Q_COMPILER_DECLTYPE
 // Compiler supports decltype
 struct Functor {
     int operator()() { return 42; }
@@ -706,9 +701,7 @@ void tst_QtConcurrentRun::functor()
         QtConcurrent::run(&pool, f, 1,2,3,4,5).waitForFinished();
     }
 }
-#endif
 
-#ifdef Q_COMPILER_LAMBDA
 // Compiler supports lambda
 void tst_QtConcurrentRun::lambda()
 {
@@ -717,14 +710,12 @@ void tst_QtConcurrentRun::lambda()
     QCOMPARE(QtConcurrent::run([](int a, double b){ return a + b; }, 12, 15).result(), double(12+15));
     QCOMPARE(QtConcurrent::run([](int a , int, int, int, int b){ return a + b; }, 1, 2, 3, 4, 5).result(), 1 + 5);
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     {
         QString str { "Hello World Foo" };
         QFuture<QStringList> f1 = QtConcurrent::run([&](){ return str.split(' '); });
         auto r = f1.result();
         QCOMPARE(r, QStringList({"Hello", "World", "Foo"}));
     }
-#endif
 
     // and now with explicit pool:
     QThreadPool pool;
@@ -733,16 +724,13 @@ void tst_QtConcurrentRun::lambda()
     QCOMPARE(QtConcurrent::run(&pool, [](int a, double b){ return a + b; }, 12, 15).result(), double(12+15));
     QCOMPARE(QtConcurrent::run(&pool, [](int a , int, int, int, int b){ return a + b; }, 1, 2, 3, 4, 5).result(), 1 + 5);
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     {
         QString str { "Hello World Foo" };
         QFuture<QStringList> f1 = QtConcurrent::run(&pool, [&](){ return str.split(' '); });
         auto r = f1.result();
         QCOMPARE(r, QStringList({"Hello", "World", "Foo"}));
     }
-#endif
 }
-#endif
 
 QTEST_MAIN(tst_QtConcurrentRun)
 #include "tst_qtconcurrentrun.moc"
diff --git a/tests/auto/corelib/global/qflags/tst_qflags.cpp b/tests/auto/corelib/global/qflags/tst_qflags.cpp
index 72b086350e..1568855032 100644
--- a/tests/auto/corelib/global/qflags/tst_qflags.cpp
+++ b/tests/auto/corelib/global/qflags/tst_qflags.cpp
@@ -142,7 +142,6 @@ void tst_QFlags::signedness()
                      std::is_signed<Qt::Alignment::Int>::value));
 }
 
-#if defined(Q_COMPILER_CLASS_ENUM)
 enum class MyStrictEnum { StrictZero, StrictOne, StrictTwo, StrictFour=4 };
 Q_DECLARE_FLAGS( MyStrictFlags, MyStrictEnum )
 Q_DECLARE_OPERATORS_FOR_FLAGS( MyStrictFlags )
@@ -154,11 +153,9 @@ Q_STATIC_ASSERT( !QTypeInfo<MyStrictFlags>::isComplex );
 Q_STATIC_ASSERT( !QTypeInfo<MyStrictFlags>::isStatic );
 Q_STATIC_ASSERT( !QTypeInfo<MyStrictFlags>::isLarge );
 Q_STATIC_ASSERT( !QTypeInfo<MyStrictFlags>::isPointer );
-#endif
 
 void tst_QFlags::classEnum()
 {
-#if defined(Q_COMPILER_CLASS_ENUM)
     // The main aim of the test is making sure it compiles
     // The QCOMPARE are there as an extra
     MyStrictEnum e1 = MyStrictEnum::StrictOne;
@@ -257,27 +254,19 @@ void tst_QFlags::classEnum()
     // Just to make sure it compiles
     if (false)
         qDebug() << f3;
-#endif
 }
 
 void tst_QFlags::initializerLists()
 {
-#if defined(Q_COMPILER_INITIALIZER_LISTS)
     Qt::MouseButtons bts = { Qt::LeftButton, Qt::RightButton };
     QVERIFY(bts.testFlag(Qt::LeftButton));
     QVERIFY(bts.testFlag(Qt::RightButton));
     QVERIFY(!bts.testFlag(Qt::MiddleButton));
 
-#if defined(Q_COMPILER_CLASS_ENUM)
     MyStrictNoOpFlags flags = { MyStrictNoOpEnum::StrictOne, MyStrictNoOpEnum::StrictFour };
     QVERIFY(flags.testFlag(MyStrictNoOpEnum::StrictOne));
     QVERIFY(flags.testFlag(MyStrictNoOpEnum::StrictFour));
     QVERIFY(!flags.testFlag(MyStrictNoOpEnum::StrictTwo));
-#endif // Q_COMPILER_CLASS_ENUM
-
-#else
-    QSKIP("This test requires C++11 initializer_list support.");
-#endif // Q_COMPILER_INITIALIZER_LISTS
 }
 
 void tst_QFlags::testSetFlags()
diff --git a/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp b/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp
index 241dccb90e..6894fd4cc3 100644
--- a/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp
+++ b/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp
@@ -1,5 +1,6 @@
 /****************************************************************************
 **
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 by Southwest Research Institute (R)
 ** Contact: https://www.qt.io/licensing/
 **
@@ -48,6 +49,7 @@ private slots:
     void arithOps();
     void floatToFloat16();
     void floatFromFloat16();
+    void limits();
 };
 
 void tst_qfloat16::fuzzyCompare_data()
@@ -345,5 +347,164 @@ void tst_qfloat16::floatFromFloat16()
         QCOMPARE(out[i], expected[i]);
 }
 
+static qfloat16 powf16(qfloat16 base, int raise)
+{
+    const qfloat16 one(1.f);
+    if (raise < 0) {
+        raise = -raise;
+        base = one / base;
+    }
+    qfloat16 answer = (raise & 1) ? base : one;
+    while (raise > 0) {
+        raise >>= 1;
+        base *= base;
+        if (raise & 1)
+            answer *= base;
+    }
+    return answer;
+}
+
+void tst_qfloat16::limits()
+{
+    // *NOT* using QCOMPARE() on finite qfloat16 values, since that uses fuzzy
+    // comparison, and we need exact here.
+    using Bounds = std::numeric_limits<qfloat16>;
+    QVERIFY(Bounds::is_specialized);
+    QVERIFY(Bounds::is_signed);
+    QVERIFY(!Bounds::is_integer);
+    QVERIFY(!Bounds::is_exact);
+    QVERIFY(Bounds::is_iec559);
+    QVERIFY(Bounds::is_bounded);
+    QVERIFY(!Bounds::is_modulo);
+    QVERIFY(!Bounds::traps);
+    QVERIFY(Bounds::has_infinity);
+    QVERIFY(Bounds::has_quiet_NaN);
+    QVERIFY(Bounds::has_signaling_NaN);
+    QCOMPARE(Bounds::has_denorm, std::denorm_present);
+    QCOMPARE(Bounds::round_style, std::round_to_nearest);
+    QCOMPARE(Bounds::radix, 2);
+    // Untested: has_denorm_loss
+
+    // A few common values:
+    const qfloat16 zero(0), one(1), ten(10);
+    QVERIFY(qIsFinite(zero));
+    QVERIFY(!qIsInf(zero));
+    QVERIFY(!qIsNaN(zero));
+    QCOMPARE(qFpClassify(zero), FP_ZERO);
+    QVERIFY(qIsFinite(one));
+    QVERIFY(!qIsInf(one));
+    QCOMPARE(qFpClassify(one), FP_NORMAL);
+    QVERIFY(!qIsNaN(one));
+    QVERIFY(qIsFinite(ten));
+    QVERIFY(!qIsInf(ten));
+    QVERIFY(!qIsNaN(ten));
+    QCOMPARE(qFpClassify(ten), FP_NORMAL);
+
+    // digits in the mantissa, including the implicit 1 before the binary dot at its left:
+    QVERIFY(qfloat16(1 << (Bounds::digits - 1)) + one > qfloat16(1 << (Bounds::digits - 1)));
+    QVERIFY(qfloat16(1 << Bounds::digits) + one == qfloat16(1 << Bounds::digits));
+
+    // There is a wilful of-by-one in how m(ax|in)_exponent are defined; they're
+    // the lowest and highest n for which radix^{n-1} are normal and finite.
+    const qfloat16 two(Bounds::radix);
+    qfloat16 bit = powf16(two, Bounds::max_exponent - 1);
+    QVERIFY(qIsFinite(bit));
+    QVERIFY(qIsInf(bit * two));
+    bit = powf16(two, Bounds::min_exponent - 1);
+    QVERIFY(bit.isNormal());
+    QCOMPARE(qFpClassify(bit), FP_NORMAL);
+    QVERIFY(!(bit / two).isNormal());
+    QCOMPARE(qFpClassify(bit / two), FP_SUBNORMAL);
+    QVERIFY(bit / two > zero);
+
+    // Base ten (with no matching off-by-one idiocy):
+    // the lowest negative number n such that 10^n is a valid normalized value
+    qfloat16 low10(powf16(ten, Bounds::min_exponent10));
+    QVERIFY(low10 > zero);
+    QVERIFY(low10.isNormal());
+    low10 /= ten;
+    QVERIFY(low10 == zero || !low10.isNormal());
+    // the largest positive number n such that 10^n is a representable finite value
+    qfloat16 high10(powf16(ten, Bounds::max_exponent10));
+    QVERIFY(high10 > zero);
+    QVERIFY(qIsFinite(high10));
+    QVERIFY(!qIsFinite(high10 * ten));
+    QCOMPARE(qFpClassify(high10), FP_NORMAL);
+
+    // How many digits are significant ?  (Casts avoid linker errors ...)
+    QCOMPARE(int(Bounds::digits10), 3); // 9.79e-4 has enough sigificant digits:
+    qfloat16 below(9.785e-4f), above(9.794e-4f);
+#if 0 // Sadly, the QEMU x-compile for arm64 "optimises" comparisons:
+    const bool overOptimised = false;
+#else
+    const bool overOptimised = (below != above);
+    if (overOptimised)
+        QEXPECT_FAIL("", "Over-optimised on QEMU", Continue);
+#endif // (but it did, so should, pass everywhere else, confirming digits10 is indeed 3).
+    QVERIFY(below == above);
+    QCOMPARE(int(Bounds::max_digits10), 5); // we need 5 to distinguish these two:
+    QVERIFY(qfloat16(1000.5f) != qfloat16(1001.4f));
+
+    // Actual limiting values of the type:
+    const qfloat16 rose(one + Bounds::epsilon());
+    QVERIFY(rose > one);
+    if (overOptimised)
+        QEXPECT_FAIL("", "Over-optimised on QEMU", Continue);
+    QVERIFY(one + Bounds::epsilon() / rose == one);
+    QVERIFY(qIsInf(Bounds::infinity()));
+    QVERIFY(!qIsNaN(Bounds::infinity()));
+    QVERIFY(!qIsFinite(Bounds::infinity()));
+    QCOMPARE(Bounds::infinity(), Bounds::infinity());
+    QCOMPARE(qFpClassify(Bounds::infinity()), FP_INFINITE);
+
+    QVERIFY(Bounds::infinity() > -Bounds::infinity());
+    QVERIFY(Bounds::infinity() > zero);
+    QVERIFY(qIsInf(-Bounds::infinity()));
+    QVERIFY(!qIsNaN(-Bounds::infinity()));
+    QVERIFY(!qIsFinite(-Bounds::infinity()));
+    QCOMPARE(-Bounds::infinity(), -Bounds::infinity());
+    QCOMPARE(qFpClassify(-Bounds::infinity()), FP_INFINITE);
+
+    QVERIFY(-Bounds::infinity() < zero);
+    QVERIFY(qIsNaN(Bounds::quiet_NaN()));
+    QVERIFY(!qIsInf(Bounds::quiet_NaN()));
+    QVERIFY(!qIsFinite(Bounds::quiet_NaN()));
+    QVERIFY(!(Bounds::quiet_NaN() == Bounds::quiet_NaN()));
+    QCOMPARE(Bounds::quiet_NaN(), Bounds::quiet_NaN());
+    QCOMPARE(qFpClassify(Bounds::quiet_NaN()), FP_NAN);
+
+    QVERIFY(Bounds::max() > zero);
+    QVERIFY(qIsFinite(Bounds::max()));
+    QVERIFY(!qIsInf(Bounds::max()));
+    QVERIFY(!qIsNaN(Bounds::max()));
+    QVERIFY(qIsInf(Bounds::max() * rose));
+    QCOMPARE(qFpClassify(Bounds::max()), FP_NORMAL);
+
+    QVERIFY(Bounds::lowest() < zero);
+    QVERIFY(qIsFinite(Bounds::lowest()));
+    QVERIFY(!qIsInf(Bounds::lowest()));
+    QVERIFY(!qIsNaN(Bounds::lowest()));
+    QVERIFY(qIsInf(Bounds::lowest() * rose));
+    QCOMPARE(qFpClassify(Bounds::lowest()), FP_NORMAL);
+
+    QVERIFY(Bounds::min() > zero);
+    QVERIFY(Bounds::min().isNormal());
+    QVERIFY(!(Bounds::min() / rose).isNormal());
+    QVERIFY(qIsFinite(Bounds::min()));
+    QVERIFY(!qIsInf(Bounds::min()));
+    QVERIFY(!qIsNaN(Bounds::min()));
+    QCOMPARE(qFpClassify(Bounds::min()), FP_NORMAL);
+
+    QVERIFY(Bounds::denorm_min() > zero);
+    QVERIFY(!Bounds::denorm_min().isNormal());
+    QVERIFY(qIsFinite(Bounds::denorm_min()));
+    QVERIFY(!qIsInf(Bounds::denorm_min()));
+    QVERIFY(!qIsNaN(Bounds::denorm_min()));
+    if (overOptimised)
+        QEXPECT_FAIL("", "Over-optimised on QEMU", Continue);
+    QCOMPARE(Bounds::denorm_min() / rose, zero);
+    QCOMPARE(qFpClassify(Bounds::denorm_min()), FP_SUBNORMAL);
+}
+
 QTEST_APPLESS_MAIN(tst_qfloat16)
 #include "tst_qfloat16.moc"
diff --git a/tests/auto/corelib/global/qglobal/qglobal.c b/tests/auto/corelib/global/qglobal/qglobal.c
index 0719c4b921..c7124454d0 100644
--- a/tests/auto/corelib/global/qglobal/qglobal.c
+++ b/tests/auto/corelib/global/qglobal/qglobal.c
@@ -85,7 +85,7 @@ int tst_QtVersion()
     return QT_VERSION;
 }
 
-const char *tst_qVersion() Q_DECL_NOTHROW
+const char *tst_qVersion() Q_DECL_NOEXCEPT
 {
 #if !defined(QT_NAMESPACE)
     return qVersion();
diff --git a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
index 56da047147..5e5492de59 100644
--- a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
+++ b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
@@ -456,12 +456,8 @@ typedef int (Empty::*memFun) ();
     } while (false)                                                         \
     /**/
 
-#ifdef Q_COMPILER_RVALUE_REFS
 #define TEST_AlignOf_RValueRef(type, alignment) \
         TEST_AlignOf_impl(type, alignment)
-#else
-#define TEST_AlignOf_RValueRef(type, alignment) do {} while (false)
-#endif
 
 #define TEST_AlignOf_impl(type, alignment) \
     do { \
diff --git a/tests/auto/corelib/global/qlogging/tst_qlogging.cpp b/tests/auto/corelib/global/qlogging/tst_qlogging.cpp
index d3ed1a6d0d..f212fe6f27 100644
--- a/tests/auto/corelib/global/qlogging/tst_qlogging.cpp
+++ b/tests/auto/corelib/global/qlogging/tst_qlogging.cpp
@@ -254,19 +254,15 @@ public:
     int rvalue() && { ADD("TestClass1::rvalue"); return 0; }
     int const_rvalue() const && { ADD("TestClass1::const_rvalue"); return 0; }
 #endif
-#ifdef Q_COMPILER_DECLTYPE
     int decltype_param(int x = 0, decltype(x) = 0) { ADD("TestClass1::decltype_param"); return x; }
     template<typename T> int decltype_template_param(T x = 0, decltype(x) = 0)
     { ADD("TestClass1::decltype_template_param"); return x; }
     template<typename T> void decltype_template_param2(T x, decltype(x + QString()))
     { ADD("TestClass1::decltype_template_param2"); }
-#  ifdef Q_COMPILER_AUTO_FUNCTION
     auto decltype_return(int x = 0) -> decltype(x)
     { ADD("TestClass1::decltype_return"); return x; }
     template <typename T> auto decltype_template_return(T x = 0) -> decltype(x)
     { ADD("TestClass1::decltype_template_return"); return x; }
-#  endif
-#endif
 
 public:
     TestClass1()
@@ -323,15 +319,11 @@ public:
             std::move(*this).rvalue();
             std::move(*this).const_rvalue();
 #endif
-#ifdef Q_COMPILER_DECLTYPE
             decltype_param();
             decltype_template_param(0);
             decltype_template_param2(QByteArray(), QString());
-#  ifdef Q_COMPILER_AUTO_FUNCTION
             decltype_return();
             decltype_template_return(0);
-#  endif
-#endif
         }
 };
 
diff --git a/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp b/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp
index 03300c6dbe..0a84b1fdd8 100644
--- a/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp
+++ b/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -42,7 +42,8 @@ class tst_QNumeric: public QObject
 private slots:
     void fuzzyCompare_data();
     void fuzzyCompare();
-    void qNan();
+    void qNanInf();
+    void classifyfp();
     void floatDistance_data();
     void floatDistance();
     void floatDistance_double_data();
@@ -91,7 +92,7 @@ void tst_QNumeric::fuzzyCompare()
 #  pragma GCC optimize "no-fast-math"
 #endif
 
-void tst_QNumeric::qNan()
+void tst_QNumeric::qNanInf()
 {
 #if defined __FAST_MATH__ && (__GNUC__ * 100 + __GNUC_MINOR__ < 404)
     QSKIP("Non-conformant fast math mode is enabled, cannot run test");
@@ -99,9 +100,16 @@ void tst_QNumeric::qNan()
     double nan = qQNaN();
     QVERIFY(!(0 > nan));
     QVERIFY(!(0 < nan));
+    QVERIFY(!(0 == nan));
+    QVERIFY(!(nan == nan));
     QVERIFY(qIsNaN(nan));
     QVERIFY(qIsNaN(nan + 1));
     QVERIFY(qIsNaN(-nan));
+    QVERIFY(qIsNaN(1.0 / nan));
+    QVERIFY(qIsNaN(0.0 / nan));
+    QVERIFY(qIsNaN(0.0 * nan));
+    QCOMPARE(nan, nan);
+    QCOMPARE(nan, -nan);
 
     Q_STATIC_ASSERT(sizeof(double) == 8);
 #ifdef Q_LITTLE_ENDIAN
@@ -113,17 +121,56 @@ void tst_QNumeric::qNan()
     QVERIFY(!qIsFinite(nan));
     QVERIFY(!qIsInf(nan));
     QVERIFY(qIsNaN(nan));
+    QVERIFY(qIsNaN(-nan));
+    QVERIFY(!(nan == nan));
+    QVERIFY(qIsNaN(0.0 * nan));
+    QCOMPARE(qFpClassify(nan), FP_NAN);
+    QCOMPARE(nan, nan);
+    QCOMPARE(nan, -nan);
+    QCOMPARE(nan, qQNaN());
 
     double inf = qInf();
     QVERIFY(inf > 0);
     QVERIFY(-inf < 0);
     QVERIFY(qIsInf(inf));
+    QCOMPARE(inf, inf);
+    QCOMPARE(-inf, -inf);
     QVERIFY(qIsInf(-inf));
-    QVERIFY(qIsInf(2*inf));
-    QCOMPARE(1/inf, 0.0);
-    QVERIFY(qIsNaN(0*nan));
-    QVERIFY(qIsNaN(0*inf));
-    QVERIFY(qFuzzyCompare(1/inf, 0.0));
+    QVERIFY(qIsInf(inf + 1));
+    QVERIFY(qIsInf(inf - 1));
+    QVERIFY(qIsInf(inf * 2.0));
+    QVERIFY(qIsInf(inf / 2.0));
+    QVERIFY(qFuzzyCompare(1.0 / inf, 0.0));
+    QCOMPARE(1.0 / inf, 0.0);
+    QVERIFY(qIsNaN(0.0 * inf));
+}
+
+void tst_QNumeric::classifyfp()
+{
+    QCOMPARE(qFpClassify(qQNaN()), FP_NAN);
+
+    QCOMPARE(qFpClassify(qInf()), FP_INFINITE);
+    QCOMPARE(qFpClassify(-qInf()), FP_INFINITE);
+    QCOMPARE(qFpClassify(DBL_MAX * 2.0), FP_INFINITE);
+    QCOMPARE(qFpClassify(FLT_MAX * 2.f), FP_INFINITE);
+    QCOMPARE(qFpClassify(DBL_MAX * -2.0), FP_INFINITE);
+    QCOMPARE(qFpClassify(FLT_MAX * -2.f), FP_INFINITE);
+
+    QCOMPARE(qFpClassify(1.0), FP_NORMAL);
+    QCOMPARE(qFpClassify(DBL_MAX), FP_NORMAL);
+    QCOMPARE(qFpClassify(-DBL_MAX), FP_NORMAL);
+    QCOMPARE(qFpClassify(DBL_MIN), FP_NORMAL);
+    QCOMPARE(qFpClassify(-DBL_MIN), FP_NORMAL);
+    QCOMPARE(qFpClassify(DBL_MIN / 2.0), FP_SUBNORMAL);
+    QCOMPARE(qFpClassify(DBL_MIN / -2.0), FP_SUBNORMAL);
+
+    QCOMPARE(qFpClassify(1.f), FP_NORMAL);
+    QCOMPARE(qFpClassify(FLT_MAX), FP_NORMAL);
+    QCOMPARE(qFpClassify(-FLT_MAX), FP_NORMAL);
+    QCOMPARE(qFpClassify(FLT_MIN), FP_NORMAL);
+    QCOMPARE(qFpClassify(-FLT_MIN), FP_NORMAL);
+    QCOMPARE(qFpClassify(FLT_MIN / 2.f), FP_SUBNORMAL);
+    QCOMPARE(qFpClassify(FLT_MIN / -2.f), FP_SUBNORMAL);
 }
 
 void tst_QNumeric::floatDistance_data()
@@ -461,13 +508,13 @@ template <typename Int> static void mulOverflow_template()
     QCOMPARE(mul_overflow(Int(max / 2), Int(3), &r), true);
     QCOMPARE(mul_overflow(mid1, Int(mid2 + 1), &r), true);
     QCOMPARE(mul_overflow(Int(max / 2 + 2), Int(2), &r), true);
+    QCOMPARE(mul_overflow(Int(max - max / 2), Int(2), &r), true);
     QCOMPARE(mul_overflow(Int(1ULL << (std::numeric_limits<Int>::digits - 1)), Int(2), &r), true);
 
     if (min) {
         QCOMPARE(mul_overflow(min, Int(2), &r), true);
         QCOMPARE(mul_overflow(Int(min / 2), Int(3), &r), true);
         QCOMPARE(mul_overflow(Int(min / 2 - 1), Int(2), &r), true);
-        QCOMPARE(mul_overflow(Int(min + min/2), Int(2), &r), true);
     }
 #endif
 }
diff --git a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
index 7b8b1df166..a818c6c09d 100644
--- a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
+++ b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
@@ -309,7 +309,7 @@ void tst_QDebug::stateSaver() const
         QDebug d = qDebug();
         {
             QDebugStateSaver saver(d);
-            d.nospace() << hex << right << qSetFieldWidth(3) << qSetPadChar('0') << 42;
+            d.nospace() << Qt::hex << Qt::right << qSetFieldWidth(3) << qSetPadChar('0') << 42;
         }
         d << 42;
     }
@@ -327,7 +327,7 @@ void tst_QDebug::stateSaver() const
 
     {
         QDebug d = qDebug();
-        d.noquote().nospace() << QStringLiteral("Hello") << hex << 42;
+        d.noquote().nospace() << QStringLiteral("Hello") << Qt::hex << 42;
         {
             QDebugStateSaver saver(d);
             d.resetFormat();
@@ -660,7 +660,7 @@ void tst_QDebug::textStreamModifiers() const
     QString file, function;
     int line = 0;
     MessageHandlerSetter mhs(myMessageHandler);
-    { qDebug() << hex << short(0xf) << int(0xf) << unsigned(0xf) << long(0xf) << qint64(0xf) << quint64(0xf); }
+    { qDebug() << Qt::hex << short(0xf) << int(0xf) << unsigned(0xf) << long(0xf) << qint64(0xf) << quint64(0xf); }
 #ifndef QT_NO_MESSAGELOGCONTEXT
     file = __FILE__; line = __LINE__ - 2; function = Q_FUNC_INFO;
 #endif
@@ -678,7 +678,7 @@ void tst_QDebug::resetFormat() const
     MessageHandlerSetter mhs(myMessageHandler);
     {
         QDebug d = qDebug();
-        d.nospace().noquote() << hex <<  int(0xf);
+        d.nospace().noquote() << Qt::hex <<  int(0xf);
         d.resetFormat() << int(0xf) << QStringLiteral("foo");
     }
 #ifndef QT_NO_MESSAGELOGCONTEXT
diff --git a/tests/auto/corelib/io/qdir/tst_qdir.cpp b/tests/auto/corelib/io/qdir/tst_qdir.cpp
index b703a8839f..2aebc67dcf 100644
--- a/tests/auto/corelib/io/qdir/tst_qdir.cpp
+++ b/tests/auto/corelib/io/qdir/tst_qdir.cpp
@@ -349,21 +349,21 @@ void tst_QDir::mkdirRmdir_data()
     QTest::addColumn<QString>("path");
     QTest::addColumn<bool>("recurse");
 
-    QStringList dirs;
-    dirs << "testdir/one"
-         << "testdir/two/three/four"
-         << "testdir/../testdir/three";
-    QTest::newRow("plain") << QDir::currentPath() + "/" + dirs.at(0) << false;
-    QTest::newRow("recursive") << QDir::currentPath() + "/" + dirs.at(1) << true;
-    QTest::newRow("with-..") << QDir::currentPath() + "/" + dirs.at(2) << false;
-
-    QTest::newRow("relative-plain") << dirs.at(0) << false;
-    QTest::newRow("relative-recursive") << dirs.at(1) << true;
-    QTest::newRow("relative-with-..") << dirs.at(2) << false;
-
-    // Ensure that none of these directories already exist
-    for (int i = 0; i < dirs.count(); ++i)
-        QVERIFY(!QFile::exists(dirs.at(i)));
+    const struct {
+        const char *name; // shall have a prefix added
+        const char *path; // relative
+        bool recurse;
+    } cases[] = {
+        { "plain", "testdir/one", false },
+        { "recursive", "testdir/two/three/four", true },
+        { "with-..", "testdir/../testdir/three", false },
+    };
+
+    for (const auto &it : cases) {
+        QVERIFY(!QFile::exists(it.path));
+        QTest::addRow("absolute-%s", it.name) << (QDir::currentPath() + "/") + it.path << it.recurse;
+        QTest::addRow("relative-%s", it.name) << QString::fromLatin1(it.path) << it.recurse;
+    }
 }
 
 void tst_QDir::mkdirRmdir()
diff --git a/tests/auto/corelib/io/qfile/test.pro b/tests/auto/corelib/io/qfile/test.pro
index 95389ab3e2..7a2767bf3c 100644
--- a/tests/auto/corelib/io/qfile/test.pro
+++ b/tests/auto/corelib/io/qfile/test.pro
@@ -23,4 +23,4 @@ TESTDATA += \
     Makefile forCopying.txt forRenaming.txt \
     resources/file1.ext1
 
-win32:!winrt: LIBS += -lole32 -luuid
+win32:!winrt: QMAKE_USE += ole32 uuid
diff --git a/tests/auto/corelib/io/qfile/tst_qfile.cpp b/tests/auto/corelib/io/qfile/tst_qfile.cpp
index 678a80c3f7..4f010f37c2 100644
--- a/tests/auto/corelib/io/qfile/tst_qfile.cpp
+++ b/tests/auto/corelib/io/qfile/tst_qfile.cpp
@@ -2099,7 +2099,7 @@ void tst_QFile::i18nFileName()
         QVERIFY2(file.open(QFile::WriteOnly | QFile::Text), msgOpenFailed(file).constData());
         QTextStream ts(&file);
         ts.setCodec("UTF-8");
-        ts << fileName << endl;
+        ts << fileName << Qt::endl;
      }
      {
         QFile file(fileName);
@@ -2149,7 +2149,7 @@ void tst_QFile::longFileName()
         QFile file(fileName);
         QVERIFY2(file.open(QFile::WriteOnly | QFile::Text), msgOpenFailed(file).constData());
         QTextStream ts(&file);
-        ts << fileName << endl;
+        ts << fileName << Qt::endl;
     }
     {
         QFile file(fileName);
diff --git a/tests/auto/corelib/io/qfileinfo/qfileinfo.pro b/tests/auto/corelib/io/qfileinfo/qfileinfo.pro
index 496729f9f1..d181d16a3e 100644
--- a/tests/auto/corelib/io/qfileinfo/qfileinfo.pro
+++ b/tests/auto/corelib/io/qfileinfo/qfileinfo.pro
@@ -5,4 +5,4 @@ SOURCES = tst_qfileinfo.cpp
 RESOURCES += qfileinfo.qrc \
     testdata.qrc
 
-win32:!winrt: LIBS += -ladvapi32 -lnetapi32
+win32:!winrt: QMAKE_USE += advapi32 netapi32
diff --git a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
index a92b4bd1cb..64075a94f0 100644
--- a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
+++ b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
@@ -1182,7 +1182,7 @@ void tst_QFileInfo::fileTimes()
         QTest::qSleep(sleepTime);
         beforeWrite = QDateTime::currentDateTime().addMSecs(-fsClockSkew);
         QTextStream ts(&file);
-        ts << fileName << endl;
+        ts << fileName << Qt::endl;
     }
     {
         QFileInfo fileInfo(fileName);
diff --git a/tests/auto/corelib/io/qlockfile/tst_qlockfile.pro b/tests/auto/corelib/io/qlockfile/tst_qlockfile.pro
index da2660fd02..e33e22b36f 100644
--- a/tests/auto/corelib/io/qlockfile/tst_qlockfile.pro
+++ b/tests/auto/corelib/io/qlockfile/tst_qlockfile.pro
@@ -3,4 +3,4 @@ TARGET = tst_qlockfile
 SOURCES += tst_qlockfile.cpp
 
 QT = core-private testlib concurrent
-win32:!winrt:LIBS += -ladvapi32
+win32:!winrt: QMAKE_USE += advapi32
diff --git a/tests/auto/corelib/io/qloggingcategory/tst_qloggingcategory.cpp b/tests/auto/corelib/io/qloggingcategory/tst_qloggingcategory.cpp
index 11a9b3f189..79ac6b0fc4 100644
--- a/tests/auto/corelib/io/qloggingcategory/tst_qloggingcategory.cpp
+++ b/tests/auto/corelib/io/qloggingcategory/tst_qloggingcategory.cpp
@@ -104,7 +104,7 @@ public:
         for (int a = 0; a < _configitemEntryOrder.count(); a++) {
             out << _configitemEntryOrder[a]
                    << " = "
-                   << _values.value(_configitemEntryOrder[a]) << endl;
+                   << _values.value(_configitemEntryOrder[a]) << Qt::endl;
         }
         out.flush();
         return ret.toLatin1();
@@ -369,11 +369,9 @@ private slots:
     }
 
     Q_LOGGING_CATEGORY(TST_MACRO_1, "tst.macro.1")
-#ifdef Q_COMPILER_VARIADIC_MACROS
     Q_LOGGING_CATEGORY(TST_MACRO_2, "tst.macro.2", QtDebugMsg)
     Q_LOGGING_CATEGORY(TST_MACRO_3, "tst.macro.3", QtFatalMsg)
     Q_LOGGING_CATEGORY(TST_MACRO_4, "tst.macro.4", QtInfoMsg)
-#endif
 
     void QLoggingCategoryMacro()
     {
@@ -384,7 +382,6 @@ private slots:
         QCOMPARE(cat1.isWarningEnabled(), true);
         QCOMPARE(cat1.isCriticalEnabled(), true);
 
-#ifdef Q_COMPILER_VARIADIC_MACROS
         const QLoggingCategory &cat2 = TST_MACRO_2();
         QCOMPARE(cat2.categoryName(), "tst.macro.2");
         QCOMPARE(cat2.isDebugEnabled(), true);
@@ -405,7 +402,6 @@ private slots:
         QCOMPARE(cat4.isInfoEnabled(), true);
         QCOMPARE(cat4.isWarningEnabled(), true);
         QCOMPARE(cat4.isCriticalEnabled(), true);
-#endif
     }
 
     void qCDebugMacros()
diff --git a/tests/auto/corelib/io/qprocess/testProcessEchoGui/testProcessEchoGui.pro b/tests/auto/corelib/io/qprocess/testProcessEchoGui/testProcessEchoGui.pro
index 935f43630c..e41ed0a425 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEchoGui/testProcessEchoGui.pro
+++ b/tests/auto/corelib/io/qprocess/testProcessEchoGui/testProcessEchoGui.pro
@@ -1,6 +1,6 @@
 win32 {
    SOURCES = main_win.cpp
-   LIBS += -luser32
+   QMAKE_USE += user32
 }
 
 CONFIG -= qt app_bundle
diff --git a/tests/auto/corelib/io/qprocess/testSoftExit/testSoftExit.pro b/tests/auto/corelib/io/qprocess/testSoftExit/testSoftExit.pro
index 2cfcb4794e..964c47f6ae 100644
--- a/tests/auto/corelib/io/qprocess/testSoftExit/testSoftExit.pro
+++ b/tests/auto/corelib/io/qprocess/testSoftExit/testSoftExit.pro
@@ -1,6 +1,6 @@
 win32 {
    SOURCES = main_win.cpp
-   LIBS += -luser32
+   QMAKE_USE += user32
 }
 unix {
    SOURCES = main_unix.cpp
diff --git a/tests/auto/corelib/io/qsettings/qsettings.pro b/tests/auto/corelib/io/qsettings/qsettings.pro
index 79552b62df..98ea337e7f 100644
--- a/tests/auto/corelib/io/qsettings/qsettings.pro
+++ b/tests/auto/corelib/io/qsettings/qsettings.pro
@@ -5,7 +5,7 @@ SOURCES = tst_qsettings.cpp
 RESOURCES += qsettings.qrc
 INCLUDEPATH += $$PWD/../../kernel/qmetatype
 
-msvc: LIBS += advapi32.lib
+msvc: QMAKE_USE += advapi32
 darwin: LIBS += -framework CoreFoundation
 
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
diff --git a/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp b/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
index cf4ab4902d..67d8c55b04 100644
--- a/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
+++ b/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
@@ -215,7 +215,7 @@ void tst_QTemporaryFile::fileTemplate()
     if (!fileTemplate.isEmpty())
         file.setFileTemplate(fileTemplate);
 
-    QCOMPARE(file.open(), true);
+    QVERIFY2(file.open(), qPrintable(file.errorString()));
 
     QString fileName = QFileInfo(file).fileName();
     if (prefix.length())
diff --git a/tests/auto/corelib/itemmodels/qstringlistmodel/tst_qstringlistmodel.cpp b/tests/auto/corelib/itemmodels/qstringlistmodel/tst_qstringlistmodel.cpp
index 0b8686560c..3919472b96 100644
--- a/tests/auto/corelib/itemmodels/qstringlistmodel/tst_qstringlistmodel.cpp
+++ b/tests/auto/corelib/itemmodels/qstringlistmodel/tst_qstringlistmodel.cpp
@@ -333,7 +333,7 @@ template <class C>
 C sorted(C c)
 {
     std::sort(c.begin(), c.end());
-    return qMove(c);
+    return std::move(c);
 }
 
 void tst_QStringListModel::setData_emits_both_roles()
diff --git a/tests/auto/corelib/kernel/qeventloop/qeventloop.pro b/tests/auto/corelib/kernel/qeventloop/qeventloop.pro
index 295a42aa9c..159761c0c6 100644
--- a/tests/auto/corelib/kernel/qeventloop/qeventloop.pro
+++ b/tests/auto/corelib/kernel/qeventloop/qeventloop.pro
@@ -3,6 +3,6 @@ TARGET = tst_qeventloop
 QT = core network testlib core-private
 SOURCES = $$PWD/tst_qeventloop.cpp
 
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
 
 qtConfig(glib): DEFINES += HAVE_GLIB
diff --git a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
index e2bb7dab2a..28458c43c7 100644
--- a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
+++ b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
@@ -1499,7 +1499,7 @@ public:
 typedef MyObject* MyObjectPtr;
 Q_DECLARE_METATYPE(MyObjectPtr)
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) && !defined(TST_QMETATYPE_BROKEN_COMPILER)
+#if !defined(TST_QMETATYPE_BROKEN_COMPILER)
 static QByteArray createTypeName(const char *begin, const char *va)
 {
     QByteArray tn(begin);
@@ -1697,7 +1697,7 @@ void tst_QMetaType::automaticTemplateRegistration()
     QVERIFY(qRegisterMetaType<UnregisteredTypeList>("UnregisteredTypeList") > 0);
   }
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) && !defined(TST_QMETATYPE_BROKEN_COMPILER)
+#if !defined(TST_QMETATYPE_BROKEN_COMPILER)
 
     #define FOR_EACH_STATIC_PRIMITIVE_TYPE(F) \
         F(bool) \
@@ -1776,7 +1776,7 @@ void tst_QMetaType::automaticTemplateRegistration()
     CREATE_AND_VERIFY_CONTAINER(QHash, void*, void*)
     CREATE_AND_VERIFY_CONTAINER(QHash, const void*, const void*)
 
-#endif // Q_COMPILER_VARIADIC_MACROS
+#endif // !defined(TST_QMETATYPE_BROKEN_COMPILER)
 
 #define TEST_OWNING_SMARTPOINTER(SMARTPOINTER, ELEMENT_TYPE, FLAG_TEST, FROMVARIANTFUNCTION) \
     { \
@@ -2565,9 +2565,7 @@ Q_DECLARE_METATYPE(UndefinedFunction0);
 Q_DECLARE_METATYPE(UndefinedFunction1);
 Q_DECLARE_METATYPE(UndefinedFunction2);
 Q_DECLARE_METATYPE(UndefinedFunction3);
-#ifdef Q_COMPILER_VARIADIC_TEMPLATES
 Q_DECLARE_METATYPE(UndefinedFunction4);
-#endif
 
 QTEST_MAIN(tst_QMetaType)
 #include "tst_qmetatype.moc"
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index 31268c5cf3..e0394a5d25 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -154,6 +154,8 @@ private slots:
     void mutableFunctor();
     void checkArgumentsForNarrowing();
     void nullReceiver();
+    void functorReferencesConnection();
+    void disconnectDisconnects();
 };
 
 struct QObjectCreatedOnShutdown
@@ -3409,12 +3411,11 @@ void tst_QObject::disconnectSelfInSlotAndDeleteAfterEmit()
 void tst_QObject::dumpObjectInfo()
 {
     QObject a, b;
-    QObject::connect(&a, SIGNAL(destroyed(QObject*)), &b, SLOT(deleteLater()));
-    a.disconnect(&b);
+    QObject::connect(&a, &QObject::destroyed, &b, &QObject::deleteLater);
     QTest::ignoreMessage(QtDebugMsg, "OBJECT QObject::unnamed");
     QTest::ignoreMessage(QtDebugMsg, "  SIGNALS OUT");
     QTest::ignoreMessage(QtDebugMsg, "        signal: destroyed(QObject*)");
-    QTest::ignoreMessage(QtDebugMsg, "          <Disconnected receiver>");
+    QTest::ignoreMessage(QtDebugMsg, "          <functor or function pointer>");
     QTest::ignoreMessage(QtDebugMsg, "  SIGNALS IN");
     QTest::ignoreMessage(QtDebugMsg, "        <None>");
     a.dumpObjectInfo(); // should not crash
@@ -4793,13 +4794,13 @@ class LotsOfSignalsAndSlots: public QObject
 
     public slots:
         void slot_v() {}
-        void slot_v_noexcept() Q_DECL_NOTHROW {}
+        void slot_v_noexcept() noexcept {}
         void slot_vi(int) {}
-        void slot_vi_noexcept() Q_DECL_NOTHROW {}
+        void slot_vi_noexcept() noexcept {}
         void slot_vii(int, int) {}
         void slot_viii(int, int, int) {}
         int slot_i() { return 0; }
-        int slot_i_noexcept() Q_DECL_NOTHROW { return 0; }
+        int slot_i_noexcept() noexcept { return 0; }
         int slot_ii(int) { return 0; }
         int slot_iii(int, int) { return 0; }
         int slot_iiii(int, int, int) { return 0; }
@@ -4813,18 +4814,18 @@ class LotsOfSignalsAndSlots: public QObject
         void slot_vPFvvE(fptr) {}
 
         void const_slot_v() const {};
-        void const_slot_v_noexcept() const Q_DECL_NOTHROW {}
+        void const_slot_v_noexcept() const noexcept {}
         void const_slot_vi(int) const {};
-        void const_slot_vi_noexcept(int) const Q_DECL_NOTHROW {}
+        void const_slot_vi_noexcept(int) const noexcept {}
 
         static void static_slot_v() {}
-        static void static_slot_v_noexcept() Q_DECL_NOTHROW {}
+        static void static_slot_v_noexcept() noexcept {}
         static void static_slot_vi(int) {}
-        static void static_slot_vi_noexcept(int) Q_DECL_NOTHROW {}
+        static void static_slot_vi_noexcept(int) noexcept {}
         static void static_slot_vii(int, int) {}
         static void static_slot_viii(int, int, int) {}
         static int static_slot_i() { return 0; }
-        static int static_slot_i_noexcept() Q_DECL_NOTHROW { return 0; }
+        static int static_slot_i_noexcept() noexcept { return 0; }
         static int static_slot_ii(int) { return 0; }
         static int static_slot_iii(int, int) { return 0; }
         static int static_slot_iiii(int, int, int) { return 0; }
@@ -4987,11 +4988,11 @@ void tst_QObject::connectCxx0xTypeMatching()
 
 }
 
-void receiverFunction_noexcept() Q_DECL_NOTHROW {}
-struct Functor_noexcept { void operator()() Q_DECL_NOTHROW {} };
+void receiverFunction_noexcept() noexcept {}
+struct Functor_noexcept { void operator()() noexcept {} };
 void tst_QObject::connectCxx17Noexcept()
 {
-    // this is about connecting signals to slots with the Q_DECL_NOTHROW qualifier
+    // this is about connecting signals to slots with the noexcept qualifier
     // as semantics changed due to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html
     typedef LotsOfSignalsAndSlots Foo;
     Foo obj;
@@ -6028,7 +6029,6 @@ void tst_QObject::connectFunctorArgDifference()
     QStringListModel model;
     connect(&model, &QStringListModel::rowsInserted, SlotFunctor());
 
-#if defined(Q_COMPILER_LAMBDA)
     connect(&timer, &QTimer::timeout, [=](){});
     connect(&timer, &QTimer::objectNameChanged, [=](const QString &){});
     connect(qApp, &QCoreApplication::aboutToQuit, [=](){});
@@ -6036,7 +6036,6 @@ void tst_QObject::connectFunctorArgDifference()
     connect(&timer, &QTimer::objectNameChanged, [=](){});
     connect(&model, &QStringListModel::rowsInserted, [=](){});
     connect(&model, &QStringListModel::rowsInserted, [=](const QModelIndex &){});
-#endif
 
     QVERIFY(true);
 }
@@ -6074,7 +6073,6 @@ void tst_QObject::connectFunctorQueued()
     e.exec();
     QCOMPARE(status, 2);
 
-#if defined(Q_COMPILER_LAMBDA)
     status = 1;
     connect(&obj, &SenderObject::signal1, this, [&status] { status = 2; }, Qt::QueuedConnection);
 
@@ -6082,7 +6080,6 @@ void tst_QObject::connectFunctorQueued()
     QCOMPARE(status, 1);
     e.exec();
     QCOMPARE(status, 2);
-#endif
 }
 
 void tst_QObject::connectFunctorWithContext()
@@ -6116,7 +6113,6 @@ void tst_QObject::connectFunctorWithContext()
     e.exec();
     QCOMPARE(status, 2);
 
-#if defined(Q_COMPILER_LAMBDA)
     status = 1;
     connect(&obj, &SenderObject::signal1, this, [this, &status, &obj] { status = 2; QCOMPARE(sender(), &obj); }, Qt::QueuedConnection);
 
@@ -6124,7 +6120,6 @@ void tst_QObject::connectFunctorWithContext()
     QCOMPARE(status, 1);
     e.exec();
     QCOMPARE(status, 2);
-#endif
 
     // Free
     context->deleteLater();
@@ -6434,7 +6429,7 @@ void connectFunctorOverload_impl(Signal signal, int expOverload, QList<QVariant>
 
 void tst_QObject::connectFunctorOverloads()
 {
-#if defined (Q_COMPILER_DECLTYPE) && defined (Q_COMPILER_VARIADIC_TEMPLATES)
+#if defined (Q_COMPILER_VARIADIC_TEMPLATES)
     connectFunctorOverload_impl<ComplexFunctor>(&FunctorArgDifferenceObject::signal_ii, 1,
                                 (QList<QVariant>() << 1 << 2));
     connectFunctorOverload_impl<ComplexFunctor>(&FunctorArgDifferenceObject::signal_iiS, 1,
@@ -6608,7 +6603,6 @@ void tst_QObject::disconnectDoesNotLeakFunctor()
     }
     QCOMPARE(countedStructObjectsCount, 0);
     {
-#if defined(Q_COMPILER_LAMBDA)
         CountedStruct s;
         QCOMPARE(countedStructObjectsCount, 1);
         QTimer timer;
@@ -6618,7 +6612,6 @@ void tst_QObject::disconnectDoesNotLeakFunctor()
         QCOMPARE(countedStructObjectsCount, 2);
         QVERIFY(QObject::disconnect(c));
         QCOMPARE(countedStructObjectsCount, 1);
-#endif // Q_COMPILER_LAMBDA
     }
     QCOMPARE(countedStructObjectsCount, 0);
 }
@@ -6666,7 +6659,6 @@ void tst_QObject::contextDoesNotLeakFunctor()
     }
     QCOMPARE(countedStructObjectsCount, 0);
     {
-#if defined(Q_COMPILER_LAMBDA)
         CountedStruct s;
         QEventLoop e;
         ContextObject *context = new ContextObject;
@@ -6679,7 +6671,6 @@ void tst_QObject::contextDoesNotLeakFunctor()
         context->deleteLater();
         e.exec();
         QCOMPARE(countedStructObjectsCount, 1);
-#endif // Q_COMPILER_LAMBDA
     }
     QCOMPARE(countedStructObjectsCount, 0);
 }
@@ -7487,6 +7478,167 @@ void tst_QObject::nullReceiver()
     QVERIFY(!connect(&o, SIGNAL(destroyed()), nullObj, SLOT(deleteLater())));
 }
 
+void tst_QObject::functorReferencesConnection()
+{
+    countedStructObjectsCount = 0;
+    QMetaObject::Connection globalCon;
+    {
+        GetSenderObject obj;
+        CountedStruct counted(&obj);
+        QCOMPARE(countedStructObjectsCount, 1);
+        auto c = QSharedPointer<QMetaObject::Connection>::create();
+        int slotCalled = 0;
+        *c = connect(&obj, &GetSenderObject::aSignal, &obj, [&slotCalled, c, counted] {
+            QObject::disconnect(*c);
+            slotCalled++;
+        });
+        globalCon = *c; // keep a handle to the connection somewhere;
+        QVERIFY(globalCon);
+        QCOMPARE(countedStructObjectsCount, 2);
+        obj.triggerSignal();
+        QCOMPARE(slotCalled, 1);
+        QCOMPARE(countedStructObjectsCount, 1);
+        QVERIFY(!globalCon);
+        obj.triggerSignal();
+        QCOMPARE(slotCalled, 1);
+        QCOMPARE(countedStructObjectsCount, 1);
+    }
+    QCOMPARE(countedStructObjectsCount, 0);
+
+    {
+        GetSenderObject obj;
+        CountedStruct counted(&obj);
+        QCOMPARE(countedStructObjectsCount, 1);
+        auto *rec = new QObject;
+        int slotCalled = 0;
+        globalCon = connect(&obj, &GetSenderObject::aSignal, rec, [&slotCalled, rec, counted] {
+            delete rec;
+            slotCalled++;
+        });
+        QCOMPARE(countedStructObjectsCount, 2);
+        obj.triggerSignal();
+        QCOMPARE(slotCalled, 1);
+        QCOMPARE(countedStructObjectsCount, 1);
+        QVERIFY(!globalCon);
+        obj.triggerSignal();
+        QCOMPARE(slotCalled, 1);
+        QCOMPARE(countedStructObjectsCount, 1);
+    }
+    QCOMPARE(countedStructObjectsCount, 0);
+    {
+        int slotCalled = 0;
+        QEventLoop eventLoop;
+        {
+            // Sender will be destroyed when the labda goes out of scope lambda, so it will exit the event loop
+            auto sender = QSharedPointer<GetSenderObject>::create();
+            connect(sender.data(), &QObject::destroyed, &eventLoop, &QEventLoop::quit, Qt::QueuedConnection);
+            globalCon = connect(sender.data(), &GetSenderObject::aSignal, this, [&slotCalled, sender, &globalCon, this] {
+                ++slotCalled;
+                // This signal will be connected, but should never be called as the sender will be destroyed before
+                auto c2 = connect(sender.data(), &GetSenderObject::aSignal, [] { QFAIL("Should not be called"); });
+                QVERIFY(c2);
+                QVERIFY(QObject::disconnect(sender.data(), nullptr, this, nullptr));
+                QVERIFY(!globalCon); // this connection has been disconnected
+                QVERIFY(c2); // sender should not have been deleted yet, only after the emission is done
+            });
+            QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection);
+            QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection);
+            QMetaObject::invokeMethod(sender.data(), &GetSenderObject::triggerSignal, Qt::QueuedConnection);
+        }
+        eventLoop.exec();
+        QCOMPARE(slotCalled, 1);
+    }
+
+    {
+        GetSenderObject obj;
+        CountedStruct counted(&obj);
+        QCOMPARE(countedStructObjectsCount, 1);
+        auto c1 = QSharedPointer<QMetaObject::Connection>::create();
+        auto c2 = QSharedPointer<QMetaObject::Connection>::create();
+        int slot1Called = 0;
+        int slot3Called = 0;
+        *c1 = connect(&obj, &GetSenderObject::aSignal, &obj, [&slot1Called, &slot3Called, &obj, c1, c2, counted] {
+            auto c3 = connect(&obj, &GetSenderObject::aSignal, [counted, &slot3Called] {
+                slot3Called++;
+            });
+            // top-level + the one in the 3 others lambdas
+            QCOMPARE(countedStructObjectsCount, 4);
+            QObject::disconnect(*c2);
+            slot1Called++;
+        });
+        connect(&obj, &GetSenderObject::aSignal, [] {}); // just a dummy signal to fill the connection list
+        *c2 = connect(&obj, &GetSenderObject::aSignal, [counted, c2] { QFAIL("should not be called"); });
+        QVERIFY(c1 && c2);
+        QCOMPARE(countedStructObjectsCount, 3); // top-level + c1 + c2
+        obj.triggerSignal();
+        QCOMPARE(slot1Called, 1);
+        QCOMPARE(slot3Called, 0);
+        QCOMPARE(countedStructObjectsCount, 3); // top-level + c1 + c3
+        QObject::disconnect(*c1);
+        QCOMPARE(countedStructObjectsCount, 2); // top-level + c3
+        obj.triggerSignal();
+        QCOMPARE(slot1Called, 1);
+        QCOMPARE(slot3Called, 1);
+    }
+    {
+        struct DestroyEmit {
+            Q_DISABLE_COPY(DestroyEmit);
+            explicit DestroyEmit(SenderObject *obj) : obj(obj) {}
+            SenderObject *obj;
+            ~DestroyEmit() {
+                obj->emitSignal1();
+            }
+        };
+        SenderObject obj;
+        int slot1Called = 0;
+        int slot2Called = 0;
+        int slot3Called = 0;
+        auto c1 = QSharedPointer<QMetaObject::Connection>::create();
+        auto de = QSharedPointer<DestroyEmit>::create(&obj);
+        *c1 = connect(&obj, &SenderObject::signal1, [&slot1Called, &slot3Called, de, c1, &obj] {
+            connect(&obj, &SenderObject::signal1, [&slot3Called] { slot3Called++; });
+            slot1Called++;
+            QObject::disconnect(*c1);
+        });
+        de.clear();
+        connect(&obj, &SenderObject::signal1, [&slot2Called] { slot2Called++; });
+        obj.emitSignal1();
+        QCOMPARE(slot1Called, 1);
+        QCOMPARE(slot2Called, 2); // because also called from ~DestroyEmit
+        QCOMPARE(slot3Called, 1);
+    }
+}
+
+void tst_QObject::disconnectDisconnects()
+{
+    // Test what happens if the destructor of an functor slot also disconnects more slot;
+
+    SenderObject s1;
+    QScopedPointer<QObject> receiver(new QObject);
+
+    auto s2 = QSharedPointer<SenderObject>::create();
+    QPointer<QObject> s2_tracker = s2.data();
+    int count = 0;
+    connect(&s1, &SenderObject::signal1, [&count] { count++; }); // α
+    connect(&s1, &SenderObject::signal1, receiver.data(), [s2] { QFAIL("!!"); }); // β
+    connect(s2.data(), &SenderObject::signal1, receiver.data(), [] { QFAIL("!!"); });
+    connect(&s1, &SenderObject::signal2, receiver.data(), [] { QFAIL("!!"); });
+    connect(s2.data(), &SenderObject::signal2, receiver.data(), [] { QFAIL("!!"); });
+    connect(&s1, &SenderObject::signal1, [&count] { count++; }); // γ
+    connect(&s1, &SenderObject::signal2, [&count] { count++; }); // δ
+    s2.clear();
+
+    QVERIFY(s2_tracker);
+    receiver
+        .reset(); // this will delete the receiver which must also delete s2 as β is disconnected
+    QVERIFY(!s2_tracker);
+    // test that the data structures are still in order
+    s1.emitSignal1();
+    QCOMPARE(count, 2); // α + γ
+    s1.emitSignal2();
+    QCOMPARE(count, 3); // + δ
+}
+
 // Test for QtPrivate::HasQ_OBJECT_Macro
 Q_STATIC_ASSERT(QtPrivate::HasQ_OBJECT_Macro<tst_QObject>::Value);
 Q_STATIC_ASSERT(!QtPrivate::HasQ_OBJECT_Macro<SiblingDeleter>::Value);
diff --git a/tests/auto/corelib/kernel/qsignalblocker/tst_qsignalblocker.cpp b/tests/auto/corelib/kernel/qsignalblocker/tst_qsignalblocker.cpp
index fd18f00cd0..39b03ade61 100644
--- a/tests/auto/corelib/kernel/qsignalblocker/tst_qsignalblocker.cpp
+++ b/tests/auto/corelib/kernel/qsignalblocker/tst_qsignalblocker.cpp
@@ -66,7 +66,6 @@ void tst_QSignalBlocker::signalBlocking()
 
 void tst_QSignalBlocker::moveAssignment()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     QObject o1, o2;
 
     // move-assignment: both block other objects
@@ -157,10 +156,6 @@ void tst_QSignalBlocker::moveAssignment()
 
     QVERIFY(!o1.signalsBlocked());
     QVERIFY(!o2.signalsBlocked());
-
-#else
-    QSKIP("This compiler is not in C++11 mode or doesn't support move semantics");
-#endif // Q_COMPILER_RVALUE_REFS
 }
 
 QTEST_MAIN(tst_QSignalBlocker)
diff --git a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
index 3b10547dc4..b7c87418c7 100644
--- a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
+++ b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
@@ -73,7 +73,12 @@ private slots:
     void recurseOnTimeoutAndStopTimer();
     void singleShotToFunctors();
     void singleShot_chrono();
+    void singleShot_static();
     void crossThreadSingleShotToFunctor();
+    void timerOrder();
+    void timerOrder_data();
+    void timerOrderBackgroundThread();
+    void timerOrderBackgroundThread_data() { timerOrder_data(); }
 
     void dontBlockEvents();
     void postedEventsShouldNotStarveTimers();
@@ -768,7 +773,7 @@ public:
         quitEventLoop_noexcept();
     }
 
-    static void quitEventLoop_noexcept() Q_DECL_NOTHROW
+    static void quitEventLoop_noexcept() noexcept
     {
         QVERIFY(!_e.isNull());
         _e->quit();
@@ -1033,5 +1038,121 @@ void tst_QTimer::callOnTimeout()
     QVERIFY(!connection);
 }
 
-QTEST_MAIN(tst_QTimer)
+class OrderHelper : public QObject
+{
+    Q_OBJECT
+public:
+    enum CallType
+    {
+        String,
+        PMF,
+        Functor,
+        FunctorNoCtx
+    };
+    Q_ENUM(CallType)
+    QVector<CallType> calls;
+
+    void triggerCall(CallType callType)
+    {
+        switch (callType)
+        {
+        case String:
+            QTimer::singleShot(0, this, SLOT(stringSlot()));
+            break;
+        case PMF:
+            QTimer::singleShot(0, this, &OrderHelper::pmfSlot);
+            break;
+        case Functor:
+            QTimer::singleShot(0, this, [this]() { functorSlot(); });
+            break;
+        case FunctorNoCtx:
+            QTimer::singleShot(0, [this]() { functorNoCtxSlot(); });
+            break;
+        }
+    }
+
+public slots:
+    void stringSlot() { calls << String; }
+    void pmfSlot() { calls << PMF; }
+    void functorSlot() { calls << Functor; }
+    void functorNoCtxSlot() { calls << FunctorNoCtx; }
+};
+
+Q_DECLARE_METATYPE(OrderHelper::CallType)
+
+void tst_QTimer::timerOrder()
+{
+    QFETCH(QVector<OrderHelper::CallType>, calls);
+
+    OrderHelper helper;
+
+    for (const auto call : calls)
+        helper.triggerCall(call);
+
+    QTRY_COMPARE(helper.calls, calls);
+}
+
+void tst_QTimer::timerOrder_data()
+{
+    QTest::addColumn<QVector<OrderHelper::CallType>>("calls");
+
+    QVector<OrderHelper::CallType> calls = {
+        OrderHelper::String, OrderHelper::PMF,
+        OrderHelper::Functor, OrderHelper::FunctorNoCtx
+    };
+    std::sort(calls.begin(), calls.end());
+
+    int permutation = 0;
+    do {
+        QTest::addRow("permutation=%d", permutation) << calls;
+        ++permutation;
+    } while (std::next_permutation(calls.begin(), calls.end()));
+}
+
+void tst_QTimer::timerOrderBackgroundThread()
+{
+#if !QT_CONFIG(cxx11_future)
+    QSKIP("This test requires QThread::create");
+#else
+    auto *thread = QThread::create([this]() { timerOrder(); });
+    thread->start();
+    QVERIFY(thread->wait());
+    delete thread;
+#endif
+}
+
+struct StaticSingleShotUser
+{
+    StaticSingleShotUser()
+    {
+        for (auto call : calls())
+            helper.triggerCall(call);
+    }
+    OrderHelper helper;
+
+    static QVector<OrderHelper::CallType> calls()
+    {
+        return {OrderHelper::String, OrderHelper::PMF,
+                OrderHelper::Functor, OrderHelper::FunctorNoCtx};
+    }
+};
+
+static StaticSingleShotUser *s_staticSingleShotUser = nullptr;
+
+void tst_QTimer::singleShot_static()
+{
+    QCoreApplication::processEvents();
+    QCOMPARE(s_staticSingleShotUser->helper.calls, s_staticSingleShotUser->calls());
+}
+
+// NOTE: to prevent any static initialization order fiasco, we handle QTEST_MAIN
+//       ourselves, but instantiate the staticSingleShotUser before qApp
+
+int main(int argc, char *argv[])
+{
+    StaticSingleShotUser staticSingleShotUser;
+    s_staticSingleShotUser = &staticSingleShotUser;
+    QTEST_MAIN_IMPL(tst_QTimer)
+}
+
 #include "tst_qtimer.moc"
diff --git a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
index 4da34c407e..6ae8fd0010 100644
--- a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
+++ b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
@@ -59,12 +59,6 @@
 
 class CustomNonQObject;
 
-#if defined(Q_COMPILER_CLASS_ENUM)
-#define ENUM_SIZE(X) : X
-#else
-#define ENUM_SIZE(X)
-#endif
-
 class tst_QVariant : public QObject
 {
     Q_OBJECT
@@ -82,15 +76,15 @@ public:
     enum MetaEnumTest_Enum1 : qint64 { MetaEnumTest_Enum1_value = 42, MetaEnumTest_Enum1_bigValue = (Q_INT64_C(1) << 33) + 50 };
     Q_ENUM(MetaEnumTest_Enum1)
 
-    enum MetaEnumTest_Enum3 ENUM_SIZE(qint64) { MetaEnumTest_Enum3_value = -47, MetaEnumTest_Enum3_bigValue = (Q_INT64_C(1) << 56) + 5, MetaEnumTest_Enum3_bigNegValue = -(Q_INT64_C(1) << 56) - 3 };
+    enum MetaEnumTest_Enum3 : qint64 { MetaEnumTest_Enum3_value = -47, MetaEnumTest_Enum3_bigValue = (Q_INT64_C(1) << 56) + 5, MetaEnumTest_Enum3_bigNegValue = -(Q_INT64_C(1) << 56) - 3 };
     Q_ENUM(MetaEnumTest_Enum3)
-    enum MetaEnumTest_Enum4 ENUM_SIZE(quint64) { MetaEnumTest_Enum4_value = 47, MetaEnumTest_Enum4_bigValue = (Q_INT64_C(1) << 52) + 45 };
+    enum MetaEnumTest_Enum4 : quint64 { MetaEnumTest_Enum4_value = 47, MetaEnumTest_Enum4_bigValue = (Q_INT64_C(1) << 52) + 45 };
     Q_ENUM(MetaEnumTest_Enum4)
-    enum MetaEnumTest_Enum5 ENUM_SIZE(uint) { MetaEnumTest_Enum5_value = 47 };
+    enum MetaEnumTest_Enum5 : uint { MetaEnumTest_Enum5_value = 47 };
     Q_ENUM(MetaEnumTest_Enum5)
-    enum MetaEnumTest_Enum6 ENUM_SIZE(uchar) { MetaEnumTest_Enum6_value = 47 };
+    enum MetaEnumTest_Enum6 : uchar { MetaEnumTest_Enum6_value = 47 };
     Q_ENUM(MetaEnumTest_Enum6)
-    enum MetaEnumTest_Enum8 ENUM_SIZE(short) { MetaEnumTest_Enum8_value = 47 };
+    enum MetaEnumTest_Enum8 : short { MetaEnumTest_Enum8_value = 47 };
     Q_ENUM(MetaEnumTest_Enum8)
 
 private slots:
@@ -2761,6 +2755,14 @@ void tst_QVariant::qvariant_cast_QObject_derived()
         QCOMPARE(data.value<CustomQObjectDerived *>(), object);
         QCOMPARE(data.value<CustomQObject *>(), object);
     }
+    {
+        QObject *object = new CustomQObjectDerivedNoMetaType(this);
+        QVariant data = QVariant::fromValue(object);
+        QVERIFY(data.canConvert<CustomQObjectDerivedNoMetaType*>());
+        QVERIFY(data.convert(qMetaTypeId<CustomQObjectDerivedNoMetaType*>()));
+        QCOMPARE(data.value<CustomQObjectDerivedNoMetaType*>(), object);
+        QCOMPARE(data.isNull(), false);
+    }
 }
 
 struct QObjectWrapper
@@ -4692,7 +4694,6 @@ Q_DECLARE_METATYPE(EnumTest_Enum0)
 enum EnumTest_Enum1 : qint64 { EnumTest_Enum1_value = 42, EnumTest_Enum1_bigValue = (Q_INT64_C(1) << 33) + 50 };
 Q_DECLARE_METATYPE(EnumTest_Enum1)
 
-#if defined(Q_COMPILER_CLASS_ENUM)
 enum EnumTest_Enum3 : qint64 { EnumTest_Enum3_value = -47, EnumTest_Enum3_bigValue = (Q_INT64_C(1) << 56) + 5  };
 Q_DECLARE_METATYPE(EnumTest_Enum3)
 enum EnumTest_Enum4 : quint64 { EnumTest_Enum4_value = 47, EnumTest_Enum4_bigValue = (Q_INT64_C(1) << 52) + 45 };
@@ -4705,7 +4706,6 @@ enum class EnumTest_Enum7 { EnumTest_Enum7_value = 47, ensureSignedEnum7 = -1 };
 Q_DECLARE_METATYPE(EnumTest_Enum7)
 enum EnumTest_Enum8 : short { EnumTest_Enum8_value = 47 };
 Q_DECLARE_METATYPE(EnumTest_Enum8)
-#endif
 
 template<typename Enum> void testVariant(Enum value, bool *ok)
 {
@@ -4764,7 +4764,6 @@ void tst_QVariant::enums()
     QVERIFY(ok);
     testVariant(EnumTest_Enum1_bigValue, &ok);
     QVERIFY(ok);
-#if defined(Q_COMPILER_CLASS_ENUM)
     testVariant(EnumTest_Enum3::EnumTest_Enum3_value, &ok);
     QVERIFY(ok);
     testVariant(EnumTest_Enum3::EnumTest_Enum3_bigValue, &ok);
@@ -4783,7 +4782,6 @@ void tst_QVariant::enums()
     QVERIFY(ok);
     testVariant(EnumTest_Enum3::EnumTest_Enum3_value, &ok);
     QVERIFY(ok);
-#endif
 }
 
 template<typename Enum> void testVariantMeta(Enum value, bool *ok, const char *string)
diff --git a/tests/auto/corelib/mimetypes/qmimetype/tst_qmimetype.cpp b/tests/auto/corelib/mimetypes/qmimetype/tst_qmimetype.cpp
index c74bce3b5b..e1357245f3 100644
--- a/tests/auto/corelib/mimetypes/qmimetype/tst_qmimetype.cpp
+++ b/tests/auto/corelib/mimetypes/qmimetype/tst_qmimetype.cpp
@@ -91,11 +91,7 @@ static QStringList qMimeTypeGlobPatterns()
 
 // ------------------------------------------------------------------------------------------------
 
-#ifndef Q_COMPILER_RVALUE_REFS
-QMIMETYPE_BUILDER
-#else
 QMIMETYPE_BUILDER_FROM_RVALUE_REFS
-#endif
 
 // ------------------------------------------------------------------------------------------------
 
diff --git a/tests/auto/corelib/plugin/qpluginloader/staticplugin/main.cpp b/tests/auto/corelib/plugin/qpluginloader/staticplugin/main.cpp
index d891839b1e..6d163ea336 100644
--- a/tests/auto/corelib/plugin/qpluginloader/staticplugin/main.cpp
+++ b/tests/auto/corelib/plugin/qpluginloader/staticplugin/main.cpp
@@ -31,7 +31,7 @@
 class StaticPlugin : public QObject
 {
     Q_OBJECT
-    Q_PLUGIN_METADATA(IID "SomeIID")
+    Q_PLUGIN_METADATA(IID "SomeIID" URI "qt.test.pluginloader.staticplugin")
 public:
     StaticPlugin() {}
 };
diff --git a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
index 4316ea14ea..b06000d9c4 100644
--- a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
@@ -552,6 +552,7 @@ void tst_QPluginLoader::staticPlugins()
     QCOMPARE(metaData.value("version").toInt(), QT_VERSION);
     QCOMPARE(metaData.value("IID").toString(), "SomeIID");
     QCOMPARE(metaData.value("ExtraMetaData"), QJsonArray({ "StaticPlugin", "foo" }));
+    QCOMPARE(metaData.value("URI").toString(), "qt.test.pluginloader.staticplugin");
 }
 
 
diff --git a/tests/auto/corelib/serialization/json/tst_qtjson.cpp b/tests/auto/corelib/serialization/json/tst_qtjson.cpp
index 083e78375a..548b6d0059 100644
--- a/tests/auto/corelib/serialization/json/tst_qtjson.cpp
+++ b/tests/auto/corelib/serialization/json/tst_qtjson.cpp
@@ -2754,9 +2754,6 @@ void tst_QtJson::testJsonValueRefDefault()
 
 void tst_QtJson::arrayInitializerList()
 {
-#ifndef Q_COMPILER_INITIALIZER_LISTS
-    QSKIP("initializer_list is enabled only with c++11 support");
-#else
     QVERIFY(QJsonArray{}.isEmpty());
     QCOMPARE(QJsonArray{"one"}.count(), 1);
     QCOMPARE(QJsonArray{1}.count(), 1);
@@ -2802,14 +2799,10 @@ void tst_QtJson::arrayInitializerList()
             QCOMPARE(QJsonValue(a43["one"]), QJsonValue(1));
         }
     }
-#endif
 }
 
 void tst_QtJson::objectInitializerList()
 {
-#ifndef Q_COMPILER_INITIALIZER_LISTS
-    QSKIP("initializer_list is enabled only with c++11 support");
-#else
     QVERIFY(QJsonObject{}.isEmpty());
 
     {   // one property
@@ -2849,7 +2842,6 @@ void tst_QtJson::objectInitializerList()
         QCOMPARE(QJsonValue(nested[0]), QJsonValue("innerValue"));
         QCOMPARE(QJsonValue(nested[1]), QJsonValue(2.1));
     }
-#endif
 }
 
 void tst_QtJson::unicodeKeys()
diff --git a/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp b/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
index d204727bbd..19cdd42a74 100644
--- a/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
+++ b/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
@@ -181,6 +181,8 @@ private slots:
 
     void streamRealDataTypes();
 
+    void enumTest();
+
     void floatingPointPrecision();
 
     void compatibility_Qt3();
@@ -3409,6 +3411,90 @@ void tst_QDataStream::floatingPointNaN()
     }
 }
 
+void tst_QDataStream::enumTest()
+{
+    QByteArray ba;
+
+    enum class E1 : qint8
+    {
+        A,
+        B,
+        C
+    };
+    {
+        QDataStream stream(&ba, QIODevice::WriteOnly);
+        stream << E1::A;
+        QCOMPARE(ba.size(), int(sizeof(E1)));
+    }
+    {
+        QDataStream stream(ba);
+        E1 e;
+        stream >> e;
+        QCOMPARE(e, E1::A);
+    }
+    ba.clear();
+
+    enum class E2 : qint16
+    {
+        A,
+        B,
+        C
+    };
+    {
+        QDataStream stream(&ba, QIODevice::WriteOnly);
+        stream << E2::B;
+        QCOMPARE(ba.size(), int(sizeof(E2)));
+    }
+    {
+        QDataStream stream(ba);
+        E2 e;
+        stream >> e;
+        QCOMPARE(e, E2::B);
+    }
+    ba.clear();
+
+    enum class E4 : qint32
+    {
+        A,
+        B,
+        C
+    };
+    {
+        QDataStream stream(&ba, QIODevice::WriteOnly);
+        stream << E4::C;
+        QCOMPARE(ba.size(), int(sizeof(E4)));
+    }
+    {
+        QDataStream stream(ba);
+        E4 e;
+        stream >> e;
+        QCOMPARE(e, E4::C);
+    }
+    ba.clear();
+
+
+    enum E
+    {
+        A,
+        B,
+        C,
+        D
+    };
+    {
+        QDataStream stream(&ba, QIODevice::WriteOnly);
+        stream << E::D;
+        QCOMPARE(ba.size(), 4);
+    }
+    {
+        QDataStream stream(ba);
+        E e;
+        stream >> e;
+        QCOMPARE(e, E::D);
+    }
+    ba.clear();
+
+}
+
 void tst_QDataStream::floatingPointPrecision()
 {
     QByteArray ba;
diff --git a/tests/auto/corelib/serialization/qtextstream/readLineStdinProcess/main.cpp b/tests/auto/corelib/serialization/qtextstream/readLineStdinProcess/main.cpp
index 41ea5e56f0..2d4aa452ca 100644
--- a/tests/auto/corelib/serialization/qtextstream/readLineStdinProcess/main.cpp
+++ b/tests/auto/corelib/serialization/qtextstream/readLineStdinProcess/main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char **argv)
     do {
         line = qin.readLine();
         if (!line.isNull())
-            qerr << line << flush;
+            qerr << line << Qt::flush;
     } while (!line.isNull());
     return 0;
 }
diff --git a/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp b/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
index 8bb35554c8..c4fb623130 100644
--- a/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
+++ b/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
@@ -245,7 +245,7 @@ private:
 void runOnExit()
 {
     QByteArray buffer;
-    QTextStream(&buffer) << "This will try to use QTextCodec::codecForLocale" << endl;
+    QTextStream(&buffer) << "This will try to use QTextCodec::codecForLocale" << Qt::endl;
 }
 Q_DESTRUCTOR_FUNCTION(runOnExit)
 
@@ -1102,7 +1102,7 @@ void tst_QTextStream::hexTest()
     QByteArray array;
     QTextStream stream(&array);
 
-    stream << showbase << hex << number;
+    stream << Qt::showbase << Qt::hex << number;
     stream.flush();
     QCOMPARE(array, data);
 }
@@ -1132,7 +1132,7 @@ void tst_QTextStream::binTest()
     QByteArray array;
     QTextStream stream(&array);
 
-    stream << showbase << bin << number;
+    stream << Qt::showbase << Qt::bin << number;
     stream.flush();
     QCOMPARE(array.constData(), data.constData());
 }
@@ -1155,7 +1155,7 @@ void tst_QTextStream::octTest()
     QByteArray array;
     QTextStream stream(&array);
 
-    stream << showbase << oct << number;
+    stream << Qt::showbase << Qt::oct << number;
     stream.flush();
     QCOMPARE(array, data);
 }
@@ -1196,7 +1196,7 @@ void tst_QTextStream::ws_manipulator()
         QTextStream stream(&string);
 
         char a, b, c, d;
-        stream >> a >> ws >> b >> ws >> c >> ws >> d;
+        stream >> a >> Qt::ws >> b >> Qt::ws >> c >> Qt::ws >> d;
         QCOMPARE(a, 'a');
         QCOMPARE(b, 'b');
         QCOMPARE(c, 'c');
@@ -1506,9 +1506,9 @@ void tst_QTextStream::readStdin()
     stdinProcess.setReadChannel(QProcess::StandardError);
 
     QTextStream stream(&stdinProcess);
-    stream << "1" << endl;
-    stream << "2" << endl;
-    stream << "3" << endl;
+    stream << "1" << Qt::endl;
+    stream << "2" << Qt::endl;
+    stream << "3" << Qt::endl;
 
     stdinProcess.closeWriteChannel();
 
@@ -1534,7 +1534,7 @@ void tst_QTextStream::readAllFromStdin()
 
     QTextStream stream(&stdinProcess);
     stream.setCodec("ISO-8859-1");
-    stream << "hello world" << flush;
+    stream << "hello world" << Qt::flush;
 
     stdinProcess.closeWriteChannel();
 
@@ -1623,18 +1623,18 @@ void tst_QTextStream::forcePoint()
 {
     QString str;
     QTextStream stream(&str);
-    stream << fixed << forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
+    stream << Qt::fixed << Qt::forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
     QCOMPARE(str, QString("1.000000 1 0 -1.000000 -1"));
 
     str.clear();
     stream.seek(0);
-    stream << scientific << forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
+    stream << Qt::scientific << Qt::forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
     QCOMPARE(str, QString("1.000000e+00 1 0 -1.000000e+00 -1"));
 
     str.clear();
     stream.seek(0);
     stream.setRealNumberNotation(QTextStream::SmartNotation);
-    stream << forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
+    stream << Qt::forcepoint << 1.0 << ' ' << 1 << ' ' << 0 << ' ' << -1.0 << ' ' << -1;
     QCOMPARE(str, QString("1.00000 1 0 -1.00000 -1"));
 
 }
@@ -1644,7 +1644,7 @@ void tst_QTextStream::forceSign()
 {
     QString str;
     QTextStream stream(&str);
-    stream << forcesign << 1.2 << ' ' << -1.2 << ' ' << 0;
+    stream << Qt::forcesign << 1.2 << ' ' << -1.2 << ' ' << 0;
     QCOMPARE(str, QString("+1.2 -1.2 +0"));
 }
 
@@ -1663,19 +1663,22 @@ void tst_QTextStream::read0d0d0a()
 
 Q_DECLARE_METATYPE(QTextStreamFunction);
 
+// Also tests that we can have namespaces that conflict with our QTextStream constants.
+namespace ws {
 QTextStream &noop(QTextStream &s) { return s; }
+}
 
 void tst_QTextStream::numeralCase_data()
 {
-    QTextStreamFunction noop_ = noop;
-    QTextStreamFunction bin_  = bin;
-    QTextStreamFunction oct_  = oct;
-    QTextStreamFunction hex_  = hex;
-    QTextStreamFunction base  = showbase;
-    QTextStreamFunction ucb   = uppercasebase;
-    QTextStreamFunction lcb   = lowercasebase;
-    QTextStreamFunction ucd   = uppercasedigits;
-    QTextStreamFunction lcd   = lowercasedigits;
+    QTextStreamFunction noop_ = ws::noop;
+    QTextStreamFunction bin  = Qt::bin;
+    QTextStreamFunction oct  = Qt::oct;
+    QTextStreamFunction hex  = Qt::hex;
+    QTextStreamFunction base  = Qt::showbase;
+    QTextStreamFunction ucb   = Qt::uppercasebase;
+    QTextStreamFunction lcb   = Qt::lowercasebase;
+    QTextStreamFunction ucd   = Qt::uppercasedigits;
+    QTextStreamFunction lcd   = Qt::lowercasedigits;
 
     QTest::addColumn<QTextStreamFunction>("func1");
     QTest::addColumn<QTextStreamFunction>("func2");
@@ -1686,30 +1689,30 @@ void tst_QTextStream::numeralCase_data()
     QTest::newRow("dec 1") << noop_ << noop_ << noop_ << noop_ << 31 << "31";
     QTest::newRow("dec 2") << noop_ << base  << noop_ << noop_ << 31 << "31";
 
-    QTest::newRow("hex 1")  << hex_  << noop_ << noop_ << noop_ << 31 << "1f";
-    QTest::newRow("hex 2")  << hex_  << noop_ << noop_ << lcd   << 31 << "1f";
-    QTest::newRow("hex 3")  << hex_  << noop_ << ucb   << noop_ << 31 << "1f";
-    QTest::newRow("hex 4")  << hex_  << noop_ << noop_ << ucd   << 31 << "1F";
-    QTest::newRow("hex 5")  << hex_  << noop_ << lcb   << ucd   << 31 << "1F";
-    QTest::newRow("hex 6")  << hex_  << noop_ << ucb   << ucd   << 31 << "1F";
-    QTest::newRow("hex 7")  << hex_  << base  << noop_ << noop_ << 31 << "0x1f";
-    QTest::newRow("hex 8")  << hex_  << base  << lcb   << lcd   << 31 << "0x1f";
-    QTest::newRow("hex 9")  << hex_  << base  << ucb   << noop_ << 31 << "0X1f";
-    QTest::newRow("hex 10") << hex_  << base  << ucb   << lcd   << 31 << "0X1f";
-    QTest::newRow("hex 11") << hex_  << base  << noop_ << ucd   << 31 << "0x1F";
-    QTest::newRow("hex 12") << hex_  << base  << lcb   << ucd   << 31 << "0x1F";
-    QTest::newRow("hex 13") << hex_  << base  << ucb   << ucd   << 31 << "0X1F";
-
-    QTest::newRow("bin 1") << bin_  << noop_ << noop_ << noop_ << 31 << "11111";
-    QTest::newRow("bin 2") << bin_  << base  << noop_ << noop_ << 31 << "0b11111";
-    QTest::newRow("bin 3") << bin_  << base  << lcb   << noop_ << 31 << "0b11111";
-    QTest::newRow("bin 4") << bin_  << base  << ucb   << noop_ << 31 << "0B11111";
-    QTest::newRow("bin 5") << bin_  << base  << noop_ << ucd   << 31 << "0b11111";
-    QTest::newRow("bin 6") << bin_  << base  << lcb   << ucd   << 31 << "0b11111";
-    QTest::newRow("bin 7") << bin_  << base  << ucb   << ucd   << 31 << "0B11111";
-
-    QTest::newRow("oct 1") << oct_  << noop_ << noop_ << noop_ << 31 << "37";
-    QTest::newRow("oct 2") << oct_  << base  << noop_ << noop_ << 31 << "037";
+    QTest::newRow("hex 1")  << hex  << noop_ << noop_ << noop_ << 31 << "1f";
+    QTest::newRow("hex 2")  << hex  << noop_ << noop_ << lcd   << 31 << "1f";
+    QTest::newRow("hex 3")  << hex  << noop_ << ucb   << noop_ << 31 << "1f";
+    QTest::newRow("hex 4")  << hex  << noop_ << noop_ << ucd   << 31 << "1F";
+    QTest::newRow("hex 5")  << hex  << noop_ << lcb   << ucd   << 31 << "1F";
+    QTest::newRow("hex 6")  << hex  << noop_ << ucb   << ucd   << 31 << "1F";
+    QTest::newRow("hex 7")  << hex  << base  << noop_ << noop_ << 31 << "0x1f";
+    QTest::newRow("hex 8")  << hex  << base  << lcb   << lcd   << 31 << "0x1f";
+    QTest::newRow("hex 9")  << hex  << base  << ucb   << noop_ << 31 << "0X1f";
+    QTest::newRow("hex 10") << hex  << base  << ucb   << lcd   << 31 << "0X1f";
+    QTest::newRow("hex 11") << hex  << base  << noop_ << ucd   << 31 << "0x1F";
+    QTest::newRow("hex 12") << hex  << base  << lcb   << ucd   << 31 << "0x1F";
+    QTest::newRow("hex 13") << hex  << base  << ucb   << ucd   << 31 << "0X1F";
+
+    QTest::newRow("bin 1") << bin  << noop_ << noop_ << noop_ << 31 << "11111";
+    QTest::newRow("bin 2") << bin  << base  << noop_ << noop_ << 31 << "0b11111";
+    QTest::newRow("bin 3") << bin  << base  << lcb   << noop_ << 31 << "0b11111";
+    QTest::newRow("bin 4") << bin  << base  << ucb   << noop_ << 31 << "0B11111";
+    QTest::newRow("bin 5") << bin  << base  << noop_ << ucd   << 31 << "0b11111";
+    QTest::newRow("bin 6") << bin  << base  << lcb   << ucd   << 31 << "0b11111";
+    QTest::newRow("bin 7") << bin  << base  << ucb   << ucd   << 31 << "0B11111";
+
+    QTest::newRow("oct 1") << oct  << noop_ << noop_ << noop_ << 31 << "37";
+    QTest::newRow("oct 2") << oct  << base  << noop_ << noop_ << 31 << "037";
 }
 
 void tst_QTextStream::numeralCase()
@@ -1782,9 +1785,9 @@ void tst_QTextStream::nanInf()
     QString s;
     QTextStream out(&s);
     out << qInf() << ' ' << -qInf() << ' ' << qQNaN()
-        << uppercasedigits << ' '
+        << Qt::uppercasedigits << ' '
         << qInf() << ' ' << -qInf() << ' ' << qQNaN()
-        << flush;
+        << Qt::flush;
 
     QCOMPARE(s, QString("inf -inf nan INF -INF NAN"));
 }
@@ -1821,7 +1824,7 @@ void tst_QTextStream::utf8IncompleteAtBufferBoundary()
         out.setFieldWidth(3);
 
         for (int i = 0; i < 1000; ++i) {
-            out << i << lineContents << endl;
+            out << i << lineContents << Qt::endl;
         }
     }
     data.close();
@@ -1859,9 +1862,9 @@ void tst_QTextStream::writeSeekWriteNoBOM()
     int number = 0;
     QString sizeStr = QLatin1String("Size=")
         + QString::number(number).rightJustified(10, QLatin1Char('0'));
-    stream << sizeStr << endl;
-    stream << "Version=" << QString::number(14) << endl;
-    stream << "blah blah blah" << endl;
+    stream << sizeStr << Qt::endl;
+    stream << "Version=" << QString::number(14) << Qt::endl;
+    stream << "blah blah blah" << Qt::endl;
     stream.flush();
 
     QCOMPARE(out.buffer().constData(), "Size=0000000000\nVersion=14\nblah blah blah\n");
@@ -1871,7 +1874,7 @@ void tst_QTextStream::writeSeekWriteNoBOM()
     stream.seek(0);
     sizeStr = QLatin1String("Size=")
         + QString::number(number).rightJustified(10, QLatin1Char('0'));
-    stream << sizeStr << endl;
+    stream << sizeStr << Qt::endl;
     stream.flush();
 
     // Check buffer is still OK
@@ -2723,7 +2726,7 @@ void tst_QTextStream::generateBOM()
 
         QTextStream stream(&file);
         stream.setCodec(QTextCodec::codecForName("UTF-16LE"));
-        stream << "Hello" << endl;
+        stream << "Hello" << Qt::endl;
 
         file.close();
         QVERIFY(file.open(QFile::ReadOnly));
@@ -2737,7 +2740,7 @@ void tst_QTextStream::generateBOM()
 
         QTextStream stream(&file);
         stream.setCodec(QTextCodec::codecForName("UTF-16LE"));
-        stream << bom << "Hello" << endl;
+        stream << Qt::bom << "Hello" << Qt::endl;
 
         file.close();
         QVERIFY(file.open(QFile::ReadOnly));
diff --git a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
index 8fdf91b090..92a0d8bbfa 100644
--- a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
+++ b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
@@ -115,7 +115,7 @@ static QByteArray makeCanonical(const QString &filename,
                     writeDtd << "<!DOCTYPE ";
                     writeDtd << docType;
                     writeDtd << " [";
-                    writeDtd << endl;
+                    writeDtd << Qt::endl;
                     for (const QXmlStreamNotationDeclaration &notation : sorted_by_name(notationDeclarations)) {
                         writeDtd << "<!NOTATION ";
                         writeDtd << notation.name().toString();
@@ -134,11 +134,11 @@ static QByteArray makeCanonical(const QString &filename,
                             }
                         }
                         writeDtd << '>';
-                        writeDtd << endl;
+                        writeDtd << Qt::endl;
                     }
 
                     writeDtd << "]>";
-                    writeDtd << endl;
+                    writeDtd << Qt::endl;
                     writer.writeDTD(dtd);
                 }
             } else if (reader.isStartElement()) {
@@ -253,7 +253,7 @@ public:
                 qFatal("%s: aId must not be an empty string", Q_FUNC_INFO);
         }
 
-        void swap(MissedBaseline &other) Q_DECL_NOTHROW
+        void swap(MissedBaseline &other) noexcept
         {
             qSwap(id, other.id);
             qSwap(expected, other.expected);
@@ -740,7 +740,7 @@ QByteArray tst_QXmlStream::readFile(const QString &filename)
         const auto attributes = reader.attributes();
         if (attributes.size()) {
             for (const QXmlStreamAttribute &attribute : attributes) {
-                writer << endl << "    Attribute(";
+                writer << Qt::endl << "    Attribute(";
                 if (!attribute.name().isEmpty())
                     writer << " name=\"" << attribute.name().toString() << '"';
                 if (!attribute.namespaceUri().isEmpty())
@@ -751,37 +751,37 @@ QByteArray tst_QXmlStream::readFile(const QString &filename)
                     writer << " prefix=\"" << attribute.prefix().toString() << '"';
                 if (!attribute.value().isEmpty())
                     writer << " value=\"" << attribute.value().toString() << '"';
-                writer << " )" << endl;
+                writer << " )" << Qt::endl;
             }
         }
         const auto namespaceDeclarations = reader.namespaceDeclarations();
         if (namespaceDeclarations.size()) {
             for (const QXmlStreamNamespaceDeclaration &namespaceDeclaration : namespaceDeclarations) {
-                writer << endl << "    NamespaceDeclaration(";
+                writer << Qt::endl << "    NamespaceDeclaration(";
                 if (!namespaceDeclaration.prefix().isEmpty())
                     writer << " prefix=\"" << namespaceDeclaration.prefix().toString() << '"';
                 if (!namespaceDeclaration.namespaceUri().isEmpty())
                     writer << " namespaceUri=\"" << namespaceDeclaration.namespaceUri().toString() << '"';
-                writer << " )" << endl;
+                writer << " )" << Qt::endl;
             }
         }
         const auto notationDeclarations = reader.notationDeclarations();
         if (notationDeclarations.size()) {
             for (const QXmlStreamNotationDeclaration &notationDeclaration : notationDeclarations) {
-                writer << endl << "    NotationDeclaration(";
+                writer << Qt::endl << "    NotationDeclaration(";
                 if (!notationDeclaration.name().isEmpty())
                     writer << " name=\"" << notationDeclaration.name().toString() << '"';
                 if (!notationDeclaration.systemId().isEmpty())
                     writer << " systemId=\"" << notationDeclaration.systemId().toString() << '"';
                 if (!notationDeclaration.publicId().isEmpty())
                     writer << " publicId=\"" << notationDeclaration.publicId().toString() << '"';
-                writer << " )" << endl;
+                writer << " )" << Qt::endl;
             }
         }
         const auto entityDeclarations = reader.entityDeclarations();
         if (entityDeclarations.size()) {
             for (const QXmlStreamEntityDeclaration &entityDeclaration : entityDeclarations) {
-                writer << endl << "    EntityDeclaration(";
+                writer << Qt::endl << "    EntityDeclaration(";
                 if (!entityDeclaration.name().isEmpty())
                     writer << " name=\"" << entityDeclaration.name().toString() << '"';
                 if (!entityDeclaration.notationName().isEmpty())
@@ -792,13 +792,13 @@ QByteArray tst_QXmlStream::readFile(const QString &filename)
                     writer << " publicId=\"" << entityDeclaration.publicId().toString() << '"';
                 if (!entityDeclaration.value().isEmpty())
                     writer << " value=\"" << entityDeclaration.value().toString() << '"';
-                writer << " )" << endl;
+                writer << " )" << Qt::endl;
             }
         }
-        writer << " )" << endl;
+        writer << " )" << Qt::endl;
     }
     if (reader.hasError())
-        writer << "ERROR: " << reader.errorString() << endl;
+        writer << "ERROR: " << reader.errorString() << Qt::endl;
     return outarray;
 }
 
@@ -1169,7 +1169,7 @@ int main(int argc, char *argv[])
         bool error = false;
         QByteArray canonical = makeCanonical(argv[2], "doc", error);
         QTextStream myStdOut(stdout);
-        myStdOut << canonical << endl;
+        myStdOut << canonical << Qt::endl;
         exit(0);
     }
 
diff --git a/tests/auto/corelib/statemachine/qstatemachine/tst_qstatemachine.cpp b/tests/auto/corelib/statemachine/qstatemachine/tst_qstatemachine.cpp
index 810698fb4e..55a672aae1 100644
--- a/tests/auto/corelib/statemachine/qstatemachine/tst_qstatemachine.cpp
+++ b/tests/auto/corelib/statemachine/qstatemachine/tst_qstatemachine.cpp
@@ -6680,13 +6680,13 @@ void tst_QStateMachine::dontProcessSlotsWhenMachineIsNotRunning()
     } emitter;
 
     initialState.addTransition(&emitter, &Emitter::signalWithNoArg, &finalState);
-    QTimer::singleShot(0, [&]() {
-        metaObject()->invokeMethod(&emitter, "emitSignalWithNoArg");
-        metaObject()->invokeMethod(&emitter, "emitSignalWithNoArg");
-    });
     machine.addState(&initialState);
     machine.addState(&finalState);
     machine.setInitialState(&initialState);
+    connect(&machine, &QStateMachine::started, &emitter, [&]() {
+        metaObject()->invokeMethod(&emitter, "emitSignalWithNoArg");
+        metaObject()->invokeMethod(&emitter, "emitSignalWithNoArg");
+    });
     connect(&machine, &QStateMachine::finished, &emitter.thread, &QThread::quit);
     machine.start();
     QSignalSpy emittedSpy(&emitter, &SignalEmitter::signalWithNoArg);
diff --git a/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp b/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
index 32e5b8ee56..3a98732f9d 100644
--- a/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
+++ b/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
@@ -291,10 +291,10 @@ void tst_QAtomicIntegerXX::copy()
     QCOMPARE(copy2.load(), atomic.load());
 
     // move
-    QAtomicInteger<T> copy3(qMove(copy));
+    QAtomicInteger<T> copy3(std::move(copy));
     QCOMPARE(copy3.load(), atomic.load());
 
-    QAtomicInteger<T> copy4 = qMove(copy2);
+    QAtomicInteger<T> copy4 = std::move(copy2);
     QCOMPARE(copy4.load(), atomic.load());
 }
 
@@ -317,11 +317,11 @@ void tst_QAtomicIntegerXX::assign()
 
     // move
     QAtomicInteger<T> copy3;
-    copy3 = qMove(copy);
+    copy3 = std::move(copy);
     QCOMPARE(copy3.load(), atomic.load());
 
     QAtomicInteger<T> copy4;
-    copy4 = qMove(copy2);
+    copy4 = std::move(copy2);
     QCOMPARE(copy4.load(), atomic.load());
 }
 
diff --git a/tests/auto/corelib/thread/qthread/tst_qthread.cpp b/tests/auto/corelib/thread/qthread/tst_qthread.cpp
index d73dcc1b6d..f72b662c94 100644
--- a/tests/auto/corelib/thread/qthread/tst_qthread.cpp
+++ b/tests/auto/corelib/thread/qthread/tst_qthread.cpp
@@ -1330,6 +1330,8 @@ void tst_QThread::quitLock()
     QCOMPARE(job->thread(), &thread);
     loop.exec();
     QVERIFY(exitThreadCalled);
+
+    delete job;
 }
 
 void tst_QThread::create()
diff --git a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
index 838431cd5a..27b49602fc 100644
--- a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
+++ b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
@@ -1322,6 +1322,7 @@ void tst_QThreadPool::waitForDoneAfterTake()
         QRunnable *runnable = createTask(emptyFunct);
         manager.start(runnable);
         QVERIFY(manager.tryTake(runnable));
+        delete runnable;
     }
 
     // Add another runnable that will not be removed
diff --git a/tests/auto/corelib/tools/collections/tst_collections.cpp b/tests/auto/corelib/tools/collections/tst_collections.cpp
index b40b1f0624..734b018b39 100644
--- a/tests/auto/corelib/tools/collections/tst_collections.cpp
+++ b/tests/auto/corelib/tools/collections/tst_collections.cpp
@@ -580,73 +580,73 @@ void tst_Collections::list()
         list1 << 0 << 1 << 2 << 3;
         list1.removeFirst();
 
-        list1.swap(0, 0);
+        list1.swapItemsAt(0, 0);
         QVERIFY(list1 == QList<int>() << 1 << 2 << 3);
 
-        list1.swap(1, 1);
+        list1.swapItemsAt(1, 1);
         QVERIFY(list1 == QList<int>() << 1 << 2 << 3);
 
-        list1.swap(2, 2);
+        list1.swapItemsAt(2, 2);
         QVERIFY(list1 == QList<int>() << 1 << 2 << 3);
 
-        list1.swap(0, 1);
+        list1.swapItemsAt(0, 1);
         QVERIFY(list1 == QList<int>() << 2 << 1 << 3);
 
-        list1.swap(0, 2);
+        list1.swapItemsAt(0, 2);
         QVERIFY(list1 == QList<int>() << 3 << 1 << 2);
 
-        list1.swap(1, 2);
+        list1.swapItemsAt(1, 2);
         QVERIFY(list1 == QList<int>() << 3 << 2 << 1);
 
-        list1.swap(1, 2);
+        list1.swapItemsAt(1, 2);
         QVERIFY(list1 == QList<int>() << 3 << 1 << 2);
 
         QList<QString> list2;
         list2 << "1" << "2" << "3";
 
-        list2.swap(0, 0);
+        list2.swapItemsAt(0, 0);
         QVERIFY(list2 == QList<QString>() << "1" << "2" << "3");
 
-        list2.swap(1, 1);
+        list2.swapItemsAt(1, 1);
         QVERIFY(list2 == QList<QString>() << "1" << "2" << "3");
 
-        list2.swap(2, 2);
+        list2.swapItemsAt(2, 2);
         QVERIFY(list2 == QList<QString>() << "1" << "2" << "3");
 
-        list2.swap(0, 1);
+        list2.swapItemsAt(0, 1);
         QVERIFY(list2 == QList<QString>() << "2" << "1" << "3");
 
-        list2.swap(0, 2);
+        list2.swapItemsAt(0, 2);
         QVERIFY(list2 == QList<QString>() << "3" << "1" << "2");
 
-        list2.swap(1, 2);
+        list2.swapItemsAt(1, 2);
         QVERIFY(list2 == QList<QString>() << "3" << "2" << "1");
 
-        list2.swap(1, 2);
+        list2.swapItemsAt(1, 2);
         QVERIFY(list2 == QList<QString>() << "3" << "1" << "2");
 
         QList<double> list3;
         list3 << 1.0 << 2.0 << 3.0;
 
-        list3.swap(0, 0);
+        list3.swapItemsAt(0, 0);
         QVERIFY(list3 == QList<double>() << 1.0 << 2.0 << 3.0);
 
-        list3.swap(1, 1);
+        list3.swapItemsAt(1, 1);
         QVERIFY(list3 == QList<double>() << 1.0 << 2.0 << 3.0);
 
-        list3.swap(2, 2);
+        list3.swapItemsAt(2, 2);
         QVERIFY(list3 == QList<double>() << 1.0 << 2.0 << 3.0);
 
-        list3.swap(0, 1);
+        list3.swapItemsAt(0, 1);
         QVERIFY(list3 == QList<double>() << 2.0 << 1.0 << 3.0);
 
-        list3.swap(0, 2);
+        list3.swapItemsAt(0, 2);
         QVERIFY(list3 == QList<double>() << 3.0 << 1.0 << 2.0);
 
-        list3.swap(1, 2);
+        list3.swapItemsAt(1, 2);
         QVERIFY(list3 == QList<double>() << 3.0 << 2.0 << 1.0);
 
-        list3.swap(1, 2);
+        list3.swapItemsAt(1, 2);
         QVERIFY(list3 == QList<double>() << 3.0 << 1.0 << 2.0);
     }
 
@@ -2425,7 +2425,7 @@ void testContainer()
         c1 = newInstance<Container>();
         QVERIFY(c1.size() == 4);
         QVERIFY(c1 == newInstance<Container>());
-        Container c2 = qMove(c1);
+        Container c2 = std::move(c1);
         QVERIFY(c2.size() == 4);
         QVERIFY(c2 == newInstance<Container>());
     }
@@ -2531,14 +2531,18 @@ void tst_Collections::conversions()
         QCOMPARE(list2.size(), 4);
         QVERIFY(list2 == (QList<QString>() << STUFF));
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
         QSet<QString> set1 = list1.toSet();
+#else
+        QSet<QString> set1(list1.begin(), list1.end());
+#endif
         QCOMPARE(set1.size(), 3);
         QVERIFY(set1.contains("A"));
         QVERIFY(set1.contains("B"));
         QVERIFY(set1.contains("C"));
         QVERIFY(!set1.contains("D"));
 
-        QList<QString> list3 = set1.toList();
+        QList<QString> list3 = set1.values();
         QCOMPARE(list3.size(), 3);
         QVERIFY(list3.contains("A"));
         QVERIFY(list3.contains("B"));
@@ -2546,9 +2550,11 @@ void tst_Collections::conversions()
         QVERIFY(!list3.contains("D"));
 
         QVERIFY(QList<int>().toVector().isEmpty());
-        QVERIFY(QList<int>().toSet().isEmpty());
         QVERIFY(QVector<int>().toList().isEmpty());
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+        QVERIFY(QList<int>().toSet().isEmpty());
         QVERIFY(QSet<int>().toList().isEmpty());
+#endif
     }
 
     {
@@ -2563,14 +2569,22 @@ void tst_Collections::conversions()
         QCOMPARE(list2.size(), 4);
         QVERIFY(list2 == (QList<QString>() << STUFF));
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
         QSet<QString> set1 = QSet<QString>::fromList(list1);
+#else
+        QSet<QString> set1(list1.begin(), list1.end());
+#endif
         QCOMPARE(set1.size(), 3);
         QVERIFY(set1.contains("A"));
         QVERIFY(set1.contains("B"));
         QVERIFY(set1.contains("C"));
         QVERIFY(!set1.contains("D"));
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
         QList<QString> list3 = QList<QString>::fromSet(set1);
+#else
+        QList<QString> list3 = set1.values();
+#endif
         QCOMPARE(list3.size(), 3);
         QVERIFY(list3.contains("A"));
         QVERIFY(list3.contains("B"));
@@ -2578,9 +2592,11 @@ void tst_Collections::conversions()
         QVERIFY(!list3.contains("D"));
 
         QVERIFY(QVector<int>::fromList(QList<int>()).isEmpty());
-        QVERIFY(QSet<int>::fromList(QList<int>()).isEmpty());
         QVERIFY(QList<int>::fromVector(QVector<int>()).isEmpty());
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+        QVERIFY(QSet<int>::fromList(QList<int>()).isEmpty());
         QVERIFY(QList<int>::fromSet(QSet<int>()).isEmpty());
+#endif
     }
 #undef STUFF
 }
@@ -2776,15 +2792,21 @@ void tst_Collections::vector_stl()
     for (int i = 0; i < elements.count(); ++i)
         vector << elements.at(i);
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     std::vector<QString> stdVector = vector.toStdVector();
-
+#else
+    std::vector<QString> stdVector(vector.begin(), vector.end());
+#endif
     QCOMPARE(int(stdVector.size()), elements.size());
 
     std::vector<QString>::const_iterator it = stdVector.begin();
     for (uint j = 0; j < stdVector.size() && it != stdVector.end(); ++j, ++it)
         QCOMPARE(*it, vector[j]);
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     QCOMPARE(QVector<QString>::fromStdVector(stdVector), vector);
+#endif
+    QCOMPARE(QVector<QString>(stdVector.begin(), stdVector.end()), vector);
 }
 
 void tst_Collections::linkedlist_stl_data()
@@ -2830,7 +2852,11 @@ void tst_Collections::list_stl()
     for (int i = 0; i < elements.count(); ++i)
         list << elements.at(i);
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     std::list<QString> stdList = list.toStdList();
+#else
+    std::list<QString> stdList(list.begin(), list.end());
+#endif
 
     QCOMPARE(int(stdList.size()), elements.size());
 
@@ -2838,7 +2864,10 @@ void tst_Collections::list_stl()
     for (uint j = 0; j < stdList.size() && it != stdList.end(); ++j, ++it)
         QCOMPARE(*it, list[j]);
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     QCOMPARE(QList<QString>::fromStdList(stdList), list);
+#endif
+    QCOMPARE(QList<QString>(stdList.begin(), stdList.end()), list);
 }
 
 template <typename T>
diff --git a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
index 3b8111f1a3..4b085d387d 100644
--- a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
+++ b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
@@ -34,13 +34,446 @@
 #include "qstring.h"
 #include "qvarlengtharray.h"
 #include "qvector.h"
+#include "qhash.h"
+#include "qdebug.h"
 
+#include <algorithm>
+#include <functional>
 #include <vector> // for reference
+#include <list>
+#include <set>
+#include <map>
+
+// MSVC has these containers from the Standard Library, but it lacks
+// a __has_include mechanism (that we need to use for other stdlibs).
+// For the sake of increasing our test coverage, work around the issue.
+
+#ifdef Q_CC_MSVC
+#define COMPILER_HAS_STDLIB_INCLUDE(x) 1
+#else
+#define COMPILER_HAS_STDLIB_INCLUDE(x) QT_HAS_INCLUDE(x)
+#endif
+
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+#include <forward_list>
+#endif
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+#include <unordered_set>
+#endif
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+#include <unordered_map>
+#endif
+
+struct Movable
+{
+    explicit Movable(int i = 0) Q_DECL_NOTHROW
+        : i(i)
+    {
+        ++instanceCount;
+    }
+
+    Movable(const Movable &m)
+        : i(m.i)
+    {
+        ++instanceCount;
+    }
+
+    ~Movable()
+    {
+        --instanceCount;
+    }
+
+    int i;
+    static int instanceCount;
+};
+
+int Movable::instanceCount = 0;
+bool operator==(Movable lhs, Movable rhs) Q_DECL_NOTHROW { return lhs.i == rhs.i; }
+bool operator!=(Movable lhs, Movable rhs) Q_DECL_NOTHROW { return lhs.i != rhs.i; }
+bool operator<(Movable lhs, Movable rhs) Q_DECL_NOTHROW { return lhs.i < rhs.i; }
+
+uint qHash(Movable m, uint seed = 0) Q_DECL_NOTHROW { return qHash(m.i, seed); }
+QDebug &operator<<(QDebug &d, Movable m)
+{
+    const QDebugStateSaver saver(d);
+    return d.nospace() << "Movable(" << m.i << ")";
+}
+
+QT_BEGIN_NAMESPACE
+Q_DECLARE_TYPEINFO(Movable, Q_MOVABLE_TYPE);
+QT_END_NAMESPACE
+
+struct Complex
+{
+    explicit Complex(int i = 0) Q_DECL_NOTHROW
+        : i(i)
+    {
+        ++instanceCount;
+    }
+
+    Complex(const Complex &c)
+        : i(c.i)
+    {
+        ++instanceCount;
+    }
+
+    ~Complex()
+    {
+        --instanceCount;
+    }
+
+    int i;
+    static int instanceCount;
+};
+
+int Complex::instanceCount = 0;
+bool operator==(Complex lhs, Complex rhs) Q_DECL_NOTHROW { return lhs.i == rhs.i; }
+bool operator!=(Complex lhs, Complex rhs) Q_DECL_NOTHROW { return lhs.i != rhs.i; }
+bool operator<(Complex lhs, Complex rhs) Q_DECL_NOTHROW { return lhs.i < rhs.i; }
+
+uint qHash(Complex c, uint seed = 0) Q_DECL_NOTHROW { return qHash(c.i, seed); }
+QDebug &operator<<(QDebug &d, Complex c)
+{
+    const QDebugStateSaver saver(d);
+    return d.nospace() << "Complex(" << c.i << ")";
+}
+
+
+struct DuplicateStrategyTestType
+{
+    explicit DuplicateStrategyTestType(int i = 0) Q_DECL_NOTHROW
+        : i(i),
+          j(++counter)
+    {
+    }
+
+    int i;
+    int j;
+
+    static int counter;
+};
+
+int DuplicateStrategyTestType::counter = 0;
+
+// only look at the i member, not j. j allows us to identify which instance
+// gets inserted in containers that don't allow for duplicates
+bool operator==(DuplicateStrategyTestType lhs, DuplicateStrategyTestType rhs) Q_DECL_NOTHROW
+{
+    return lhs.i == rhs.i;
+}
+
+bool operator!=(DuplicateStrategyTestType lhs, DuplicateStrategyTestType rhs) Q_DECL_NOTHROW
+{
+    return lhs.i != rhs.i;
+}
+
+bool operator<(DuplicateStrategyTestType lhs, DuplicateStrategyTestType rhs) Q_DECL_NOTHROW
+{
+    return lhs.i < rhs.i;
+}
+
+uint qHash(DuplicateStrategyTestType c, uint seed = 0) Q_DECL_NOTHROW
+{
+    return qHash(c.i, seed);
+}
+
+bool reallyEqual(DuplicateStrategyTestType lhs, DuplicateStrategyTestType rhs) Q_DECL_NOTHROW
+{
+    return lhs.i == rhs.i && lhs.j == rhs.j;
+}
+
+QDebug &operator<<(QDebug &d, DuplicateStrategyTestType c)
+{
+    const QDebugStateSaver saver(d);
+    return d.nospace() << "DuplicateStrategyTestType(" << c.i << "," << c.j << ")";
+}
+
+
+namespace std {
+template<>
+struct hash<Movable>
+{
+    std::size_t operator()(Movable m) const Q_DECL_NOTHROW
+    {
+        return hash<int>()(m.i);
+    }
+};
+
+template<>
+struct hash<Complex>
+{
+    std::size_t operator()(Complex m) const Q_DECL_NOTHROW
+    {
+        return hash<int>()(m.i);
+    }
+};
+
+template<>
+struct hash<DuplicateStrategyTestType>
+{
+    std::size_t operator()(DuplicateStrategyTestType m) const Q_DECL_NOTHROW
+    {
+        return hash<int>()(m.i);
+    }
+};
+}
+
+// work around the fact that QVarLengthArray has a non-type
+// template parameter, and that breaks non_associative_container_duplicates_strategy
+template<typename T>
+class VarLengthArray : public QVarLengthArray<T>
+{
+public:
+#ifdef Q_COMPILER_INHERITING_CONSTRUCTORS
+    using QVarLengthArray<T>::QVarLengthArray;
+#else
+    template<typename InputIterator>
+    VarLengthArray(InputIterator first, InputIterator last)
+        : QVarLengthArray<T>(first, last)
+    {
+    }
+
+    VarLengthArray(std::initializer_list<T> args)
+        : QVarLengthArray<T>(args)
+    {
+    }
+#endif
+};
 
 class tst_ContainerApiSymmetry : public QObject
 {
     Q_OBJECT
 
+    int m_movableInstanceCount;
+    int m_complexInstanceCount;
+
+private Q_SLOTS:
+    void init();
+    void cleanup();
+
+private:
+    template <typename Container>
+    void ranged_ctor_non_associative_impl() const;
+
+    template<template<typename ... T> class Container>
+    void non_associative_container_duplicates_strategy() const;
+
+    template <typename Container>
+    void ranged_ctor_associative_impl() const;
+
+private Q_SLOTS:
+    // non associative
+    void ranged_ctor_std_vector_int() { ranged_ctor_non_associative_impl<std::vector<int>>(); }
+    void ranged_ctor_std_vector_char() { ranged_ctor_non_associative_impl<std::vector<char>>(); }
+    void ranged_ctor_std_vector_QChar() { ranged_ctor_non_associative_impl<std::vector<QChar>>(); }
+    void ranged_ctor_std_vector_Movable() { ranged_ctor_non_associative_impl<std::vector<Movable>>(); }
+    void ranged_ctor_std_vector_Complex() { ranged_ctor_non_associative_impl<std::vector<Complex>>(); }
+    void ranged_ctor_std_vector_duplicates_strategy() { non_associative_container_duplicates_strategy<std::vector>(); }
+
+    void ranged_ctor_QVector_int() { ranged_ctor_non_associative_impl<QVector<int>>(); }
+    void ranged_ctor_QVector_char() { ranged_ctor_non_associative_impl<QVector<char>>(); }
+    void ranged_ctor_QVector_QChar() { ranged_ctor_non_associative_impl<QVector<QChar>>(); }
+    void ranged_ctor_QVector_Movable() { ranged_ctor_non_associative_impl<QVector<Movable>>(); }
+    void ranged_ctor_QVector_Complex() { ranged_ctor_non_associative_impl<QVector<Complex>>(); }
+    void ranged_ctor_QVector_duplicates_strategy() { non_associative_container_duplicates_strategy<QVector>(); }
+
+    void ranged_ctor_QVarLengthArray_int() { ranged_ctor_non_associative_impl<QVarLengthArray<int>>(); }
+    void ranged_ctor_QVarLengthArray_Movable() { ranged_ctor_non_associative_impl<QVarLengthArray<Movable>>(); }
+    void ranged_ctor_QVarLengthArray_Complex() { ranged_ctor_non_associative_impl<QVarLengthArray<Complex>>(); }
+    void ranged_ctor_QVarLengthArray_duplicates_strategy() { non_associative_container_duplicates_strategy<VarLengthArray>(); } // note the VarLengthArray passed
+
+    void ranged_ctor_QList_int() { ranged_ctor_non_associative_impl<QList<int>>(); }
+    void ranged_ctor_QList_Movable() { ranged_ctor_non_associative_impl<QList<Movable>>(); }
+    void ranged_ctor_QList_Complex() { ranged_ctor_non_associative_impl<QList<Complex>>(); }
+    void ranged_ctor_QList_duplicates_strategy() { non_associative_container_duplicates_strategy<QList>(); }
+
+    void ranged_ctor_std_list_int() { ranged_ctor_non_associative_impl<std::list<int>>(); }
+    void ranged_ctor_std_list_Movable() { ranged_ctor_non_associative_impl<std::list<Movable>>(); }
+    void ranged_ctor_std_list_Complex() { ranged_ctor_non_associative_impl<std::list<Complex>>(); }
+    void ranged_ctor_std_list_duplicates_strategy() { non_associative_container_duplicates_strategy<std::list>(); }
+
+    void ranged_ctor_std_forward_list_int() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+        ranged_ctor_non_associative_impl<std::forward_list<int>>();
+#else
+        QSKIP("<forward_list> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_forward_list_Movable() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+        ranged_ctor_non_associative_impl<std::forward_list<Movable>>();
+#else
+        QSKIP("<forward_list> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_forward_list_Complex() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+        ranged_ctor_non_associative_impl<std::forward_list<Complex>>();
+#else
+        QSKIP("<forward_list> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_forward_list_duplicates_strategy() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+        non_associative_container_duplicates_strategy<std::forward_list>();
+#else
+        QSKIP("<forward_list> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_QLinkedList_int() { ranged_ctor_non_associative_impl<QLinkedList<int>>(); }
+    void ranged_ctor_QLinkedList_Movable() { ranged_ctor_non_associative_impl<QLinkedList<Movable>>(); }
+    void ranged_ctor_QLinkedList_Complex() { ranged_ctor_non_associative_impl<QLinkedList<Complex>>(); }
+    void ranged_ctor_QLinkedList_duplicates_strategy() { non_associative_container_duplicates_strategy<QLinkedList>(); }
+
+    void ranged_ctor_std_set_int() { ranged_ctor_non_associative_impl<std::set<int>>(); }
+    void ranged_ctor_std_set_Movable() { ranged_ctor_non_associative_impl<std::set<Movable>>(); }
+    void ranged_ctor_std_set_Complex() { ranged_ctor_non_associative_impl<std::set<Complex>>(); }
+    void ranged_ctor_std_set_duplicates_strategy() { non_associative_container_duplicates_strategy<std::set>(); }
+
+    void ranged_ctor_std_multiset_int() { ranged_ctor_non_associative_impl<std::multiset<int>>(); }
+    void ranged_ctor_std_multiset_Movable() { ranged_ctor_non_associative_impl<std::multiset<Movable>>(); }
+    void ranged_ctor_std_multiset_Complex() { ranged_ctor_non_associative_impl<std::multiset<Complex>>(); }
+    void ranged_ctor_std_multiset_duplicates_strategy() { non_associative_container_duplicates_strategy<std::multiset>(); }
+
+    void ranged_ctor_std_unordered_set_int() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_set<int>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_unordered_set_Movable() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_set<Movable>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_unordered_set_Complex() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_set<Complex>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_unordered_set_duplicates_strategy() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        non_associative_container_duplicates_strategy<std::unordered_set>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+
+    void ranged_ctor_std_unordered_multiset_int() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_multiset<int>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_unordered_multiset_Movable() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_multiset<Movable>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_unordered_multiset_Complex() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        ranged_ctor_non_associative_impl<std::unordered_multiset<Complex>>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_std_unordered_multiset_duplicates_strategy() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+        non_associative_container_duplicates_strategy<std::unordered_multiset>();
+#else
+        QSKIP("<unordered_set> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_QSet_int() { ranged_ctor_non_associative_impl<QSet<int>>(); }
+    void ranged_ctor_QSet_Movable() { ranged_ctor_non_associative_impl<QSet<Movable>>(); }
+    void ranged_ctor_QSet_Complex() { ranged_ctor_non_associative_impl<QSet<Complex>>(); }
+    void ranged_ctor_QSet_duplicates_strategy() { non_associative_container_duplicates_strategy<QSet>(); }
+
+    // associative
+    void ranged_ctor_std_map_int() { ranged_ctor_associative_impl<std::map<int, int>>(); }
+    void ranged_ctor_std_map_Movable() { ranged_ctor_associative_impl<std::map<Movable, int>>(); }
+    void ranged_ctor_std_map_Complex() { ranged_ctor_associative_impl<std::map<Complex, int>>(); }
+
+    void ranged_ctor_std_multimap_int() { ranged_ctor_associative_impl<std::multimap<int, int>>(); }
+    void ranged_ctor_std_multimap_Movable() { ranged_ctor_associative_impl<std::multimap<Movable, int>>(); }
+    void ranged_ctor_std_multimap_Complex() { ranged_ctor_associative_impl<std::multimap<Complex, int>>(); }
+
+    void ranged_ctor_unordered_map_int() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_map<int, int>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_unordered_map_Movable() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_map<Movable, Movable>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_unordered_map_Complex() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_map<Complex, Complex>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_QHash_int() { ranged_ctor_associative_impl<QHash<int, int>>(); }
+    void ranged_ctor_QHash_Movable() { ranged_ctor_associative_impl<QHash<Movable, int>>(); }
+    void ranged_ctor_QHash_Complex() { ranged_ctor_associative_impl<QHash<Complex, int>>(); }
+
+    void ranged_ctor_unordered_multimap_int() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_multimap<int, int>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_unordered_multimap_Movable() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_multimap<Movable, Movable>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_unordered_multimap_Complex() {
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_map>)
+        ranged_ctor_associative_impl<std::unordered_multimap<Complex, Complex>>();
+#else
+        QSKIP("<unordered_map> is needed for this test");
+#endif
+    }
+
+    void ranged_ctor_QMultiHash_int() { ranged_ctor_associative_impl<QMultiHash<int, int>>(); }
+    void ranged_ctor_QMultiHash_Movable() { ranged_ctor_associative_impl<QMultiHash<Movable, int>>(); }
+    void ranged_ctor_QMultiHash_Complex() { ranged_ctor_associative_impl<QMultiHash<Complex, int>>(); }
+
 private:
     template <typename Container>
     void front_back_impl() const;
@@ -58,6 +491,296 @@ private Q_SLOTS:
     void front_back_QByteArray() { front_back_impl<QByteArray>(); }
 };
 
+void tst_ContainerApiSymmetry::init()
+{
+    m_movableInstanceCount = Movable::instanceCount;
+    m_complexInstanceCount = Complex::instanceCount;
+}
+
+void tst_ContainerApiSymmetry::cleanup()
+{
+    // very simple leak check
+    QCOMPARE(Movable::instanceCount, m_movableInstanceCount);
+    QCOMPARE(Complex::instanceCount, m_complexInstanceCount);
+}
+
+template <typename Container>
+Container createContainerReference()
+{
+    using V = typename Container::value_type;
+
+    return {V(0), V(1), V(2), V(0)};
+}
+
+template <typename Container>
+void tst_ContainerApiSymmetry::ranged_ctor_non_associative_impl() const
+{
+    using V = typename Container::value_type;
+
+    // the double V(0) is deliberate
+    const auto reference = createContainerReference<Container>();
+
+    // plain array
+    const V values1[] = { V(0), V(1), V(2), V(0) };
+
+    const Container c1(values1, values1 + sizeof(values1)/sizeof(values1[0]));
+
+    // from QList
+    QList<V> l2;
+    l2 << V(0) << V(1) << V(2) << V(0);
+
+    const Container c2a(l2.begin(), l2.end());
+    const Container c2b(l2.cbegin(), l2.cend());
+
+    // from std::list
+    std::list<V> l3;
+    l3.push_back(V(0));
+    l3.push_back(V(1));
+    l3.push_back(V(2));
+    l3.push_back(V(0));
+    const Container c3a(l3.begin(), l3.end());
+
+    // from const std::list
+    const std::list<V> l3c = l3;
+    const Container c3b(l3c.begin(), l3c.end());
+
+    // from itself
+    const Container c4(reference.begin(), reference.end());
+
+    QCOMPARE(c1,  reference);
+    QCOMPARE(c2a, reference);
+    QCOMPARE(c2b, reference);
+    QCOMPARE(c3a, reference);
+    QCOMPARE(c3b, reference);
+    QCOMPARE(c4,  reference);
+}
+
+
+// type traits for detecting whether a non-associative container
+// accepts duplicated values, and if it doesn't, whether construction/insertion
+// prefer the new values (overwriting) or the old values (rejecting)
+
+struct ContainerAcceptsDuplicateValues {};
+struct ContainerOverwritesDuplicateValues {};
+struct ContainerRejectsDuplicateValues {};
+
+template<typename Container>
+struct ContainerDuplicatedValuesStrategy {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::vector<T...>> : ContainerAcceptsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<QVector<T...>> : ContainerAcceptsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<QVarLengthArray<T...>> : ContainerAcceptsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<VarLengthArray<T...>> : ContainerAcceptsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<QList<T...>> : ContainerAcceptsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::list<T...>> : ContainerAcceptsDuplicateValues {};
+
+#if COMPILER_HAS_STDLIB_INCLUDE(<forward_list>)
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::forward_list<T...>> : ContainerAcceptsDuplicateValues {};
+#endif
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<QLinkedList<T...>> : ContainerAcceptsDuplicateValues {};
+
+// assuming https://cplusplus.github.io/LWG/lwg-active.html#2844 resolution
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::set<T...>> : ContainerRejectsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::multiset<T...>> : ContainerAcceptsDuplicateValues {};
+
+#if COMPILER_HAS_STDLIB_INCLUDE(<unordered_set>)
+// assuming https://cplusplus.github.io/LWG/lwg-active.html#2844 resolution
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::unordered_set<T...>> : ContainerRejectsDuplicateValues {};
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<std::unordered_multiset<T...>> : ContainerAcceptsDuplicateValues {};
+#endif
+
+template<typename ... T>
+struct ContainerDuplicatedValuesStrategy<QSet<T...>> : ContainerRejectsDuplicateValues {};
+
+template<typename Container>
+void non_associative_container_check_duplicates_impl(const std::initializer_list<DuplicateStrategyTestType> &reference, const Container &c, ContainerAcceptsDuplicateValues)
+{
+    // do a deep check for equality, not ordering
+    QVERIFY(std::distance(reference.begin(), reference.end()) == std::distance(c.begin(), c.end()));
+    QVERIFY(std::is_permutation(reference.begin(), reference.end(), c.begin(), &reallyEqual));
+}
+
+enum class IterationOnReference
+{
+    ForwardIteration,
+    ReverseIteration
+};
+
+template<typename Container>
+void non_associative_container_check_duplicates_impl_no_duplicates(const std::initializer_list<DuplicateStrategyTestType> &reference, const Container &c, IterationOnReference ior)
+{
+    std::vector<DuplicateStrategyTestType> valuesAlreadySeen;
+
+    // iterate on reference forward or backwards, depending on ior. this will give
+    // us the expected semantics when checking for duplicated values into c
+    auto it = [&reference, ior]() {
+        switch (ior) {
+        case IterationOnReference::ForwardIteration: return reference.begin();
+        case IterationOnReference::ReverseIteration: return reference.end() - 1;
+        };
+        return std::initializer_list<DuplicateStrategyTestType>::const_iterator();
+    }();
+
+    const auto &end = [&reference, ior]() {
+        switch (ior) {
+        case IterationOnReference::ForwardIteration: return reference.end();
+        case IterationOnReference::ReverseIteration: return reference.begin() - 1;
+        };
+        return std::initializer_list<DuplicateStrategyTestType>::const_iterator();
+    }();
+
+    while (it != end) {
+        const auto &value = *it;
+
+        // check that there is indeed the same value in the container (using operator==)
+        const auto &valueInContainerIterator = std::find(c.begin(), c.end(), value);
+        QVERIFY(valueInContainerIterator != c.end());
+        QVERIFY(value == *valueInContainerIterator);
+
+        // if the value is a duplicate, we don't expect to find it in the container
+        // (when doing a deep comparison). otherwise it should be there
+
+        const auto &valuesAlreadySeenIterator = std::find(valuesAlreadySeen.cbegin(), valuesAlreadySeen.cend(), value);
+        const bool valueIsDuplicated = (valuesAlreadySeenIterator != valuesAlreadySeen.cend());
+
+        const auto &reallyEqualCheck = [&value](const DuplicateStrategyTestType &v) { return reallyEqual(value, v); };
+        QCOMPARE(std::find_if(c.begin(), c.end(), reallyEqualCheck) == c.end(), valueIsDuplicated);
+
+        valuesAlreadySeen.push_back(value);
+
+        switch (ior) {
+        case IterationOnReference::ForwardIteration:
+            ++it;
+            break;
+        case IterationOnReference::ReverseIteration:
+            --it;
+            break;
+        };
+    }
+
+}
+
+template<typename Container>
+void non_associative_container_check_duplicates_impl(const std::initializer_list<DuplicateStrategyTestType> &reference, const Container &c, ContainerRejectsDuplicateValues)
+{
+    non_associative_container_check_duplicates_impl_no_duplicates(reference, c, IterationOnReference::ForwardIteration);
+}
+
+template<typename Container>
+void non_associative_container_check_duplicates_impl(const std::initializer_list<DuplicateStrategyTestType> &reference, const Container &c, ContainerOverwritesDuplicateValues)
+{
+    non_associative_container_check_duplicates_impl_no_duplicates(reference, c, IterationOnReference::ReverseIteration);
+}
+
+template<typename Container>
+void non_associative_container_check_duplicates(const std::initializer_list<DuplicateStrategyTestType> &reference, const Container &c)
+{
+    non_associative_container_check_duplicates_impl(reference, c, ContainerDuplicatedValuesStrategy<Container>());
+}
+
+template<template<class ... T> class Container>
+void tst_ContainerApiSymmetry::non_associative_container_duplicates_strategy() const
+{
+    // first and last are "duplicates" -- they compare equal for operator==,
+    // but they differ when using reallyEqual
+    const std::initializer_list<DuplicateStrategyTestType> reference{ DuplicateStrategyTestType{0},
+                                                                      DuplicateStrategyTestType{1},
+                                                                      DuplicateStrategyTestType{2},
+                                                                      DuplicateStrategyTestType{0} };
+    Container<DuplicateStrategyTestType> c1{reference};
+    non_associative_container_check_duplicates(reference, c1);
+
+    Container<DuplicateStrategyTestType> c2{reference.begin(), reference.end()};
+    non_associative_container_check_duplicates(reference, c2);
+}
+
+template <typename Container>
+void tst_ContainerApiSymmetry::ranged_ctor_associative_impl() const
+{
+    using K = typename Container::key_type;
+    using V = typename Container::mapped_type;
+
+    // The double K(0) is deliberate. The order of the elements matters:
+    // * for unique-key STL containers, the first one should be the one inserted (cf. LWG 2844)
+    // * for unique-key Qt containers, the last one should be the one inserted
+    // * for multi-key sorted containers, the order of insertion of identical keys is also the
+    //   iteration order (which establishes the equality of the containers)
+    // (although nothing of this is being tested here, that deserves its own testing)
+    const Container reference{
+        { K(0), V(1000) },
+        { K(1), V(1001) },
+        { K(2), V(1002) },
+        { K(0), V(1003) }
+    };
+
+    // Note that using anything not convertible to std::pair doesn't work for
+    // std containers. Their ranged construction is defined in terms of
+    // insert(value_type), which for std associative containers is
+    // std::pair<const K, T>.
+
+    // plain array
+    const std::pair<K, V> values1[] = {
+        std::make_pair(K(0), V(1000)),
+        std::make_pair(K(1), V(1001)),
+        std::make_pair(K(2), V(1002)),
+        std::make_pair(K(0), V(1003))
+    };
+
+    const Container c1(values1, values1 + sizeof(values1)/sizeof(values1[0]));
+
+    // from QList
+    QList<std::pair<K, V>> l2;
+    l2 << std::make_pair(K(0), V(1000))
+       << std::make_pair(K(1), V(1001))
+       << std::make_pair(K(2), V(1002))
+       << std::make_pair(K(0), V(1003));
+
+    const Container c2a(l2.begin(), l2.end());
+    const Container c2b(l2.cbegin(), l2.cend());
+
+    // from std::list
+    std::list<std::pair<K, V>> l3;
+    l3.push_back(std::make_pair(K(0), V(1000)));
+    l3.push_back(std::make_pair(K(1), V(1001)));
+    l3.push_back(std::make_pair(K(2), V(1002)));
+    l3.push_back(std::make_pair(K(0), V(1003)));
+    const Container c3a(l3.begin(), l3.end());
+
+    // from const std::list
+    const std::list<std::pair<K, V>> l3c = l3;
+    const Container c3b(l3c.begin(), l3c.end());
+
+    // from itself
+    const Container c4(reference.begin(), reference.end());
+
+    QCOMPARE(c1,  reference);
+    QCOMPARE(c2a, reference);
+    QCOMPARE(c2b, reference);
+    QCOMPARE(c3a, reference);
+    QCOMPARE(c3b, reference);
+    QCOMPARE(c4,  reference);
+}
+
 template <typename Container>
 Container make(int size)
 {
diff --git a/tests/auto/corelib/tools/qalgorithms/tst_qalgorithms.cpp b/tests/auto/corelib/tools/qalgorithms/tst_qalgorithms.cpp
index 72299402f0..06db0e8546 100644
--- a/tests/auto/corelib/tools/qalgorithms/tst_qalgorithms.cpp
+++ b/tests/auto/corelib/tools/qalgorithms/tst_qalgorithms.cpp
@@ -208,7 +208,7 @@ void printHeader(QStringList &headers)
     for (int h = 0; h < headers.count(); ++h) {
         cout << setw(20) << setiosflags(ios_base::left) << headers.at(h).toLatin1().constData();
     }
-    cout << endl;
+    cout << Qt::endl;
 }
 
 template <typename ContainerType>
@@ -220,7 +220,7 @@ void print(ContainerType testContainer)
         cout << value << " ";
     }
 
-    cout << endl;
+    cout << Qt::endl;
 }
 
 template <typename Algorithm, typename DataType>
@@ -252,7 +252,7 @@ void testAlgorithm(Algorithm algorithm, QStringList &dataSetTypes)
             lessThan << setiosflags(ios_base::left) << setw(10) << result.lessThanRefCount / result.numSorts;
             cout << numSorts.str() << lessThan.str();
         }
-        cout << endl;
+        cout << Qt::endl;
     }
 }
 #endif
@@ -765,21 +765,21 @@ public:
 #if Q_TEST_PERFORMANCE
 void tst_QAlgorithms::performance()
 {
-    cout << endl << "Quick sort" << endl;
+    cout << Qt::endl << "Quick sort" << Qt::endl;
     testAlgorithm<QuickSortHelper<TestInt>, TestInt>(QuickSortHelper<TestInt>(), dataSetTypes);
-    cout << endl << "stable sort" << endl;
+    cout << Qt::endl << "stable sort" << Qt::endl;
     testAlgorithm<StableSortHelper<TestInt>, TestInt>(StableSortHelper<TestInt>(), dataSetTypes);
-    cout << endl << "std::sort" << endl;
+    cout << Qt::endl << "std::sort" << Qt::endl;
     testAlgorithm<StlSortHelper<TestInt>, TestInt>(StlSortHelper<TestInt>(), dataSetTypes);
-    cout << endl << "std::stable_sort" << endl;
+    cout << Qt::endl << "std::stable_sort" << Qt::endl;
     testAlgorithm<StlStableSortHelper<TestInt>, TestInt>(StlStableSortHelper<TestInt>(), dataSetTypes);
 /*
-    cout << endl << "Sorting lists of ints" << endl;
-    cout << endl << "Quick sort" << endl;
+    cout << Qt::endl << "Sorting lists of ints" << Qt::endl;
+    cout << Qt::endl << "Quick sort" << Qt::endl;
     testAlgorithm<QuickSortHelper<int>, int>(QuickSortHelper<int>(), dataSetTypes);
-    cout << endl << "std::sort" << endl;
+    cout << Qt::endl << "std::sort" << Qt::endl;
     testAlgorithm<StlSortHelper<int>, int>(StlSortHelper<int>(), dataSetTypes);
-    cout << endl << "std::stable_sort" << endl;
+    cout << Qt::endl << "std::stable_sort" << Qt::endl;
     testAlgorithm<StlStableSortHelper<int>, int>(StlStableSortHelper<int>(), dataSetTypes);
 */
 }
diff --git a/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp b/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
index a00c962510..6ae2aab5b9 100644
--- a/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
+++ b/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
@@ -78,12 +78,8 @@ private slots:
     void fromRawData_data();
     void fromRawData();
     void literals();
-#if defined(Q_COMPILER_VARIADIC_MACROS) && defined(Q_COMPILER_LAMBDA)
     void variadicLiterals();
-#endif
-#ifdef Q_COMPILER_RVALUE_REFS
     void rValueReferences();
-#endif
     void grow();
 };
 
@@ -1618,9 +1614,7 @@ void tst_QArrayData::literals()
         QCOMPARE(v.size(), size_t(11));
         // v.capacity() is unspecified, for now
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) && defined(Q_COMPILER_LAMBDA)
         QVERIFY(v.isStatic());
-#endif
 
 #if !defined(QT_NO_UNSHARABLE_CONTAINERS)
         QVERIFY(v.isSharable());
@@ -1633,7 +1627,6 @@ void tst_QArrayData::literals()
     }
 }
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) && defined(Q_COMPILER_LAMBDA)
 // Variadic Q_ARRAY_LITERAL need to be available in the current configuration.
 void tst_QArrayData::variadicLiterals()
 {
@@ -1682,9 +1675,7 @@ void tst_QArrayData::variadicLiterals()
             QCOMPARE(const_(v)[i], i);
     }
 }
-#endif
 
-#ifdef Q_COMPILER_RVALUE_REFS
 // std::remove_reference is in C++11, but requires library support
 template <class T> struct RemoveReference { typedef T Type; };
 template <class T> struct RemoveReference<T &> { typedef T Type; };
@@ -1767,7 +1758,6 @@ void tst_QArrayData::rValueReferences()
     QCOMPARE(v3.size(), size_t(1));
     QCOMPARE(v3.front(), 42);
 }
-#endif
 
 void tst_QArrayData::grow()
 {
diff --git a/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp b/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
index 1ed41793dc..987b3058e3 100644
--- a/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
+++ b/tests/auto/corelib/tools/qbytearray/tst_qbytearray.cpp
@@ -138,9 +138,7 @@ private slots:
     void reserveExtended();
     void movablity_data();
     void movablity();
-#if defined(Q_COMPILER_LAMBDA)
     void literals();
-#endif
     void toUpperLower_data();
     void toUpperLower();
     void isUpper();
@@ -1361,6 +1359,9 @@ void tst_QByteArray::toDouble_data()
     QTest::newRow("trailing spaces") << QByteArray("1.2345 \n\r\t") << 1.2345 << true;
     QTest::newRow("leading junk") << QByteArray("x1.2345") << 0.0 << false;
     QTest::newRow("trailing junk") << QByteArray("1.2345x") << 0.0 << false;
+
+    QTest::newRow("raw, null plus junk") << QByteArray::fromRawData("1.2\0 junk", 9) << 0.0 << false;
+    QTest::newRow("raw, null-terminator not included") << QByteArray::fromRawData("2.3", 3) << 2.3 << true;
 }
 
 void tst_QByteArray::toDouble()
@@ -2189,7 +2190,6 @@ void tst_QByteArray::movablity()
     QVERIFY(true);
 }
 
-#if defined(Q_COMPILER_LAMBDA)
 // Only tested on c++0x compliant compiler or gcc
 void tst_QByteArray::literals()
 {
@@ -2210,7 +2210,6 @@ void tst_QByteArray::literals()
     QVERIFY(str2.constData() == s);
     QVERIFY(str2.data() != s);
 }
-#endif
 
 void tst_QByteArray::toUpperLower_data()
 {
@@ -2242,28 +2241,28 @@ void tst_QByteArray::toUpperLower()
     QCOMPARE(input.toLower(), lower);
 
     QByteArray copy = input;
-    QCOMPARE(qMove(copy).toUpper(), upper);
+    QCOMPARE(std::move(copy).toUpper(), upper);
     copy = input;
     copy.detach();
-    QCOMPARE(qMove(copy).toUpper(), upper);
+    QCOMPARE(std::move(copy).toUpper(), upper);
 
     copy = input;
-    QCOMPARE(qMove(copy).toLower(), lower);
+    QCOMPARE(std::move(copy).toLower(), lower);
     copy = input;
     copy.detach();
-    QCOMPARE(qMove(copy).toLower(), lower);
+    QCOMPARE(std::move(copy).toLower(), lower);
 
     copy = lower;
-    QCOMPARE(qMove(copy).toLower(), lower);
+    QCOMPARE(std::move(copy).toLower(), lower);
     copy = lower;
     copy.detach();
-    QCOMPARE(qMove(copy).toLower(), lower);
+    QCOMPARE(std::move(copy).toLower(), lower);
 
     copy = upper;
-    QCOMPARE(qMove(copy).toUpper(), upper);
+    QCOMPARE(std::move(copy).toUpper(), upper);
     copy = upper;
     copy.detach();
-    QCOMPARE(qMove(copy).toUpper(), upper);
+    QCOMPARE(std::move(copy).toUpper(), upper);
 }
 
 void tst_QByteArray::isUpper()
diff --git a/tests/auto/corelib/tools/qbytearraylist/tst_qbytearraylist.cpp b/tests/auto/corelib/tools/qbytearraylist/tst_qbytearraylist.cpp
index 2d2c536453..09ce41337e 100644
--- a/tests/auto/corelib/tools/qbytearraylist/tst_qbytearraylist.cpp
+++ b/tests/auto/corelib/tools/qbytearraylist/tst_qbytearraylist.cpp
@@ -194,22 +194,22 @@ void tst_QByteArrayList::operator_plus() const
     {
         QByteArrayList bal1 = lhs;
         const QByteArrayList bal2 = rhs;
-        QCOMPARE(qMove(bal1) + bal2, expectedResult);
+        QCOMPARE(std::move(bal1) + bal2, expectedResult);
     }
     {
         QList<QByteArray> lba1 = lhs;
         const QByteArrayList bal2 = rhs;
-        QCOMPARE(qMove(lba1) + bal2, expectedResult);
+        QCOMPARE(std::move(lba1) + bal2, expectedResult);
     }
     {
         QByteArrayList bal1 = lhs;
         const QList<QByteArray> lba2 = rhs;
-        QCOMPARE(qMove(bal1) + lba2, expectedResult);
+        QCOMPARE(std::move(bal1) + lba2, expectedResult);
     }
     {
         QList<QByteArray> lba1 = lhs;
         const QList<QByteArray> lba2 = rhs;
-        QCOMPARE(qMove(lba1) + lba2, QList<QByteArray>(expectedResult)); // check we don't mess with old code
+        QCOMPARE(std::move(lba1) + lba2, QList<QByteArray>(expectedResult)); // check we don't mess with old code
     }
 
     // operator += for const lvalues
@@ -232,7 +232,7 @@ void tst_QByteArrayList::operator_plus() const
     QByteArrayList t1 = lhs;
     QByteArrayList t2 = rhs;
 
-    QCOMPARE(qMove(t1) + t2, expectedResult);
+    QCOMPARE(std::move(t1) + t2, expectedResult);
 }
 
 void tst_QByteArrayList::operator_plus_data() const
@@ -287,7 +287,6 @@ void tst_QByteArrayList::indexOf() const
 
 void tst_QByteArrayList::initializerList() const
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     // constructor
     QByteArrayList v1 = {QByteArray("hello"),"world",QByteArray("plop")};
     QCOMPARE(v1, (QByteArrayList() << "hello" << "world" << "plop"));
@@ -296,9 +295,6 @@ void tst_QByteArrayList::initializerList() const
     QByteArrayList v2;
     v2 = {QByteArray("hello"),"world",QByteArray("plop")};
     QCOMPARE(v2, v1);
-#else
-    QSKIP("This test requires C++11 initializer_list support in the compiler.");
-#endif
 }
 
 QTEST_APPLESS_MAIN(tst_QByteArrayList)
diff --git a/tests/auto/corelib/tools/qcollator/tst_qcollator.cpp b/tests/auto/corelib/tools/qcollator/tst_qcollator.cpp
index 72f88a235d..2ae9c6e159 100644
--- a/tests/auto/corelib/tools/qcollator/tst_qcollator.cpp
+++ b/tests/auto/corelib/tools/qcollator/tst_qcollator.cpp
@@ -47,7 +47,6 @@ private Q_SLOTS:
     void state();
 };
 
-#ifdef Q_COMPILER_RVALUE_REFS
 static bool dpointer_is_null(QCollator &c)
 {
     char mem[sizeof c];
@@ -58,11 +57,9 @@ static bool dpointer_is_null(QCollator &c)
             return false;
     return true;
 }
-#endif
 
 void tst_QCollator::moveSemantics()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     const QLocale de_AT(QLocale::German, QLocale::Austria);
 
     QCollator c1(de_AT);
@@ -78,9 +75,6 @@ void tst_QCollator::moveSemantics()
     c1 = std::move(c2);
     QCOMPARE(c1.locale(), de_AT);
     QVERIFY(dpointer_is_null(c2));
-#else
-    QSKIP("The compiler is not in C++11 mode or does not support move semantics.");
-#endif
 }
 
 
diff --git a/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp b/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
index 7980f1f8f4..de51c866e1 100644
--- a/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
+++ b/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
@@ -44,6 +44,7 @@ private slots:
 
     // In-process tests
     void testInvalidOptions();
+    void testDuplicateOption();
     void testPositionalArguments();
     void testBooleanOption_data();
     void testBooleanOption();
@@ -104,6 +105,15 @@ void tst_QCommandLineParser::testInvalidOptions()
     QVERIFY(!parser.addOption(QCommandLineOption(QStringLiteral("-v"), QStringLiteral("Displays version information."))));
 }
 
+void tst_QCommandLineParser::testDuplicateOption()
+{
+    QCoreApplication app(empty_argc, empty_argv);
+    QCommandLineParser parser;
+    QVERIFY(parser.addOption(QCommandLineOption(QStringLiteral("h"), QStringLiteral("Hostname."), QStringLiteral("hostname"))));
+    QTest::ignoreMessage(QtWarningMsg, "QCommandLineParser: already having an option named \"h\"");
+    parser.addHelpOption();
+}
+
 void tst_QCommandLineParser::testPositionalArguments()
 {
     QCoreApplication app(empty_argc, empty_argv);
@@ -489,7 +499,7 @@ void tst_QCommandLineParser::testSingleDashWordOptionModes()
 
 void tst_QCommandLineParser::testCpp11StyleInitialization()
 {
-#if defined(Q_COMPILER_INITIALIZER_LISTS) && defined(Q_COMPILER_UNIFORM_INIT)
+#if defined(Q_COMPILER_UNIFORM_INIT)
     QCoreApplication app(empty_argc, empty_argv);
 
     QCommandLineParser parser;
diff --git a/tests/auto/corelib/tools/qcontiguouscache/tst_qcontiguouscache.cpp b/tests/auto/corelib/tools/qcontiguouscache/tst_qcontiguouscache.cpp
index 31a5f93822..9b45e17a28 100644
--- a/tests/auto/corelib/tools/qcontiguouscache/tst_qcontiguouscache.cpp
+++ b/tests/auto/corelib/tools/qcontiguouscache/tst_qcontiguouscache.cpp
@@ -68,7 +68,7 @@ void tst_QContiguousCache::assignment()
    // copy:
    cc1 = cc2;
    // move:
-   cc1 = qMove(cc2);
+   cc1 = std::move(cc2);
 }
 
 void tst_QContiguousCache::empty()
diff --git a/tests/auto/corelib/tools/qdate/qdate.pro b/tests/auto/corelib/tools/qdate/qdate.pro
index dd7c6cb888..925c3b4c78 100644
--- a/tests/auto/corelib/tools/qdate/qdate.pro
+++ b/tests/auto/corelib/tools/qdate/qdate.pro
@@ -1,4 +1,4 @@
 CONFIG += testcase
 TARGET = tst_qdate
-QT = core testlib
+QT = core-private testlib
 SOURCES = tst_qdate.cpp
diff --git a/tests/auto/corelib/tools/qdate/tst_qdate.cpp b/tests/auto/corelib/tools/qdate/tst_qdate.cpp
index ce1e5730dd..0ef494b229 100644
--- a/tests/auto/corelib/tools/qdate/tst_qdate.cpp
+++ b/tests/auto/corelib/tools/qdate/tst_qdate.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -27,6 +27,7 @@
 **
 ****************************************************************************/
 
+#include <private/qglobal_p.h> // for the icu feature test
 #include <QtTest/QtTest>
 #include <qdatetime.h>
 #include <qlocale.h>
@@ -54,6 +55,13 @@ private slots:
     void weekNumber_invalid();
     void weekNumber_data();
     void weekNumber();
+#if QT_CONFIG(timezone)
+    void startOfDay_endOfDay_data();
+    void startOfDay_endOfDay();
+#endif
+    void startOfDay_endOfDay_fixed_data();
+    void startOfDay_endOfDay_fixed();
+    void startOfDay_endOfDay_bounds();
     void julianDaysLimits();
     void addDays_data();
     void addDays();
@@ -83,6 +91,7 @@ private slots:
     void negativeYear() const;
     void printNegativeYear() const;
     void roundtripGermanLocale() const;
+#if QT_CONFIG(textdate)
     void shortDayName() const;
     void standaloneShortDayName() const;
     void longDayName() const;
@@ -91,6 +100,7 @@ private slots:
     void standaloneShortMonthName() const;
     void longMonthName() const;
     void standaloneLongMonthName() const;
+#endif // textdate
     void roundtrip() const;
     void qdebug() const;
 private:
@@ -456,6 +466,164 @@ void tst_QDate::weekNumber_invalid()
     QCOMPARE( dt.weekNumber( &yearNumber ), 0 );
 }
 
+#if QT_CONFIG(timezone)
+void tst_QDate::startOfDay_endOfDay_data()
+{
+    QTest::addColumn<QDate>("date"); // Typically a spring-forward.
+    // A zone in which that date's start and end are worth checking:
+    QTest::addColumn<QByteArray>("zoneName");
+    // The start and end times in that zone:
+    QTest::addColumn<QTime>("start");
+    QTest::addColumn<QTime>("end");
+
+    const QTime initial(0, 0), final(23, 59, 59, 999), invalid(QDateTime().time());
+
+    QTest::newRow("epoch")
+        << QDate(1970, 1, 1) << QByteArray("UTC")
+        << initial << final;
+    QTest::newRow("Brazil")
+        << QDate(2008, 10, 19) << QByteArray("America/Sao_Paulo")
+        << QTime(1, 0) << final;
+#if QT_CONFIG(icu) || !defined(Q_OS_WIN) // MS's TZ APIs lack data
+    QTest::newRow("Sofia")
+        << QDate(1994, 3, 27) << QByteArray("Europe/Sofia")
+        << QTime(1, 0) << final;
+#endif
+    QTest::newRow("Kiritimati")
+        << QDate(1994, 12, 31) << QByteArray("Pacific/Kiritimati")
+        << invalid << invalid;
+    QTest::newRow("Samoa")
+        << QDate(2011, 12, 30) << QByteArray("Pacific/Apia")
+        << invalid << invalid;
+    // TODO: find other zones with transitions at/crossing midnight.
+}
+
+void tst_QDate::startOfDay_endOfDay()
+{
+    QFETCH(QDate, date);
+    QFETCH(QByteArray, zoneName);
+    QFETCH(QTime, start);
+    QFETCH(QTime, end);
+    const QTimeZone zone(zoneName);
+    const bool isSystem = QTimeZone::systemTimeZone() == zone;
+    QDateTime front(date.startOfDay(zone)), back(date.endOfDay(zone));
+    if (end.isValid())
+        QCOMPARE(date.addDays(1).startOfDay(zone).addMSecs(-1), back);
+    if (start.isValid())
+        QCOMPARE(date.addDays(-1).endOfDay(zone).addMSecs(1), front);
+    do { // Avoids duplicating these tests for local-time when it *is* zone:
+        if (start.isValid()) {
+            QCOMPARE(front.date(), date);
+            QCOMPARE(front.time(), start);
+        }
+        if (end.isValid()) {
+            QCOMPARE(back.date(), date);
+            QCOMPARE(back.time(), end);
+        }
+        if (front.timeSpec() == Qt::LocalTime)
+            break;
+        front = date.startOfDay(Qt::LocalTime);
+        back = date.endOfDay(Qt::LocalTime);
+    } while (isSystem);
+    if (end.isValid())
+        QCOMPARE(date.addDays(1).startOfDay(Qt::LocalTime).addMSecs(-1), back);
+    if (start.isValid())
+        QCOMPARE(date.addDays(-1).endOfDay(Qt::LocalTime).addMSecs(1), front);
+    if (!isSystem) {
+        // These might fail if system zone coincides with zone; but only if it
+        // did something similarly unusual on the date picked for this test.
+        if (start.isValid()) {
+            QCOMPARE(front.date(), date);
+            QCOMPARE(front.time(), QTime(0, 0));
+        }
+        if (end.isValid()) {
+            QCOMPARE(back.date(), date);
+            QCOMPARE(back.time(), QTime(23, 59, 59, 999));
+        }
+    }
+}
+#endif // timezone
+
+void tst_QDate::startOfDay_endOfDay_fixed_data()
+{
+    const qint64 kilo(1000);
+    using Bounds = std::numeric_limits<qint64>;
+    const QDateTime
+        first(QDateTime::fromMSecsSinceEpoch(Bounds::min() + 1, Qt::UTC)),
+        start32sign(QDateTime::fromMSecsSinceEpoch(-0x80000000L * kilo, Qt::UTC)),
+        end32sign(QDateTime::fromMSecsSinceEpoch(0x80000000L * kilo, Qt::UTC)),
+        end32unsign(QDateTime::fromMSecsSinceEpoch(0x100000000L * kilo, Qt::UTC)),
+        last(QDateTime::fromMSecsSinceEpoch(Bounds::max(), Qt::UTC));
+
+    const struct {
+        const char *name;
+        QDate date;
+    } data[] = {
+        { "epoch", QDate(1970, 1, 1) },
+        { "y2k-leap-day", QDate(2000, 2, 29) },
+        // Just outside the start and end of 32-bit time_t:
+        { "pre-sign32", QDate(start32sign.date().year(), 1, 1) },
+        { "post-sign32", QDate(end32sign.date().year(), 12, 31) },
+        { "post-uint32", QDate(end32unsign.date().year(), 12, 31) },
+        // Just inside the start and end of QDateTime's range:
+        { "first-full", first.date().addDays(1) },
+        { "last-full", last.date().addDays(-1) }
+    };
+
+    QTest::addColumn<QDate>("date");
+    for (const auto &r : data)
+        QTest::newRow(r.name) << r.date;
+}
+
+void tst_QDate::startOfDay_endOfDay_fixed()
+{
+    const QTime early(0, 0), late(23, 59, 59, 999);
+    QFETCH(QDate, date);
+
+    QDateTime start(date.startOfDay(Qt::UTC));
+    QDateTime end(date.endOfDay(Qt::UTC));
+    QCOMPARE(start.date(), date);
+    QCOMPARE(end.date(), date);
+    QCOMPARE(start.time(), early);
+    QCOMPARE(end.time(), late);
+    QCOMPARE(date.addDays(1).startOfDay(Qt::UTC).addMSecs(-1), end);
+    QCOMPARE(date.addDays(-1).endOfDay(Qt::UTC).addMSecs(1), start);
+    for (int offset = -60 * 16; offset <= 60 * 16; offset += 65) {
+        start = date.startOfDay(Qt::OffsetFromUTC, offset);
+        end = date.endOfDay(Qt::OffsetFromUTC, offset);
+        QCOMPARE(start.date(), date);
+        QCOMPARE(end.date(), date);
+        QCOMPARE(start.time(), early);
+        QCOMPARE(end.time(), late);
+        QCOMPARE(date.addDays(1).startOfDay(Qt::OffsetFromUTC, offset).addMSecs(-1), end);
+        QCOMPARE(date.addDays(-1).endOfDay(Qt::OffsetFromUTC, offset).addMSecs(1), start);
+    }
+}
+
+void tst_QDate::startOfDay_endOfDay_bounds()
+{
+    // Check the days in which QDateTime's range starts and ends:
+    using Bounds = std::numeric_limits<qint64>;
+    const QDateTime
+        first(QDateTime::fromMSecsSinceEpoch(Bounds::min(), Qt::UTC)),
+        last(QDateTime::fromMSecsSinceEpoch(Bounds::max(), Qt::UTC)),
+        epoch(QDateTime::fromMSecsSinceEpoch(0, Qt::UTC));
+    // First, check these *are* the start and end of QDateTime's range:
+    QVERIFY(first.isValid());
+    QVERIFY(last.isValid());
+    QVERIFY(first < epoch);
+    QVERIFY(last > epoch);
+    // QDateTime's addMSecs doesn't check against {und,ov}erflow ...
+    QVERIFY(!first.addMSecs(-1).isValid() || first.addMSecs(-1) > first);
+    QVERIFY(!last.addMSecs(1).isValid() || last.addMSecs(1) < last);
+
+    // Now test start/end methods with them:
+    QCOMPARE(first.date().endOfDay(Qt::UTC).time(), QTime(23, 59, 59, 999));
+    QCOMPARE(last.date().startOfDay(Qt::UTC).time(), QTime(0, 0));
+    QVERIFY(!first.date().startOfDay(Qt::UTC).isValid());
+    QVERIFY(!last.date().endOfDay(Qt::UTC).isValid());
+}
+
 void tst_QDate::julianDaysLimits()
 {
     qint64 min = std::numeric_limits<qint64>::min();
@@ -1038,18 +1206,18 @@ void tst_QDate::fromStringFormat_data()
 
     // Undo this (inline the C-locale versions) for ### Qt 6
     // Get localized names:
-    QString january = QDate::longMonthName(1);
-    QString february = QDate::longMonthName(2);
-    QString march = QDate::longMonthName(3);
-    QString august = QDate::longMonthName(8);
-    QString mon = QDate::shortDayName(1);
-    QString monday = QDate::longDayName(1);
-    QString tuesday = QDate::longDayName(2);
-    QString wednesday = QDate::longDayName(3);
-    QString thursday = QDate::longDayName(4);
-    QString friday = QDate::longDayName(5);
-    QString saturday = QDate::longDayName(6);
-    QString sunday = QDate::longDayName(7);
+    QString january = QLocale::system().monthName(1, QLocale::LongFormat);
+    QString february = QLocale::system().monthName(2, QLocale::LongFormat);
+    QString march = QLocale::system().monthName(3, QLocale::LongFormat);
+    QString august = QLocale::system().monthName(8, QLocale::LongFormat);
+    QString mon = QLocale::system().dayName(1, QLocale::ShortFormat);
+    QString monday = QLocale::system().dayName(1, QLocale::LongFormat);
+    QString tuesday = QLocale::system().dayName(2, QLocale::LongFormat);
+    QString wednesday = QLocale::system().dayName(3, QLocale::LongFormat);
+    QString thursday = QLocale::system().dayName(4, QLocale::LongFormat);
+    QString friday = QLocale::system().dayName(5, QLocale::LongFormat);
+    QString saturday = QLocale::system().dayName(6, QLocale::LongFormat);
+    QString sunday = QLocale::system().dayName(7, QLocale::LongFormat);
 
     QTest::newRow("data0") << QString("") << QString("") << defDate();
     QTest::newRow("data1") << QString(" ") << QString("") << invalidDate();
@@ -1305,6 +1473,10 @@ void tst_QDate::roundtripGermanLocale() const
     theDateTime.fromString(theDateTime.toString(Qt::TextDate), Qt::TextDate);
 }
 
+#if QT_CONFIG(textdate)
+QT_WARNING_PUSH // the methods tested here are all deprecated
+QT_WARNING_DISABLE_GCC("-Wdeprecated-declarations")
+
 void tst_QDate::shortDayName() const
 {
     QCOMPARE(QDate::shortDayName(0), QString());
@@ -1432,6 +1604,8 @@ void tst_QDate::standaloneLongMonthName() const
         QCOMPARE(QDate::longMonthName(i, QDate::StandaloneFormat), locale.standaloneMonthName(i, QLocale::LongFormat));
     }
 }
+QT_WARNING_POP
+#endif // textdate
 
 void tst_QDate::roundtrip() const
 {
diff --git a/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp b/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp
index 0196dd2d23..3af6132695 100644
--- a/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp
+++ b/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp
@@ -30,9 +30,7 @@
 
 #include <qeasingcurve.h>
 
-#ifdef Q_COMPILER_RVALUE_REFS // cpp11() slot
-# include <utility> // for std::move()
-#endif
+#include <utility> // for std::move()
 
 class tst_QEasingCurve : public QObject
 {
@@ -55,6 +53,8 @@ private slots:
     void testCbrtFloat();
     void cpp11();
     void quadraticEquation();
+    void streamInOut_data();
+    void streamInOut();
 };
 
 void tst_QEasingCurve::type()
@@ -792,7 +792,6 @@ void tst_QEasingCurve::testCbrtFloat()
 
 void tst_QEasingCurve::cpp11()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     {
     QEasingCurve ec( QEasingCurve::InOutBack );
     QEasingCurve copy = std::move(ec); // move ctor
@@ -807,7 +806,6 @@ void tst_QEasingCurve::cpp11()
     QCOMPARE( copy.type(), QEasingCurve::InOutBack );
     QCOMPARE( ec.type(), type );
     }
-#endif
 }
 
 void tst_QEasingCurve::quadraticEquation() {
@@ -879,5 +877,36 @@ void tst_QEasingCurve::quadraticEquation() {
     }
 }
 
+void tst_QEasingCurve::streamInOut_data()
+{
+    QTest::addColumn<int>("version");
+    QTest::addColumn<bool>("equality");
+
+    QTest::newRow("5.11") << int(QDataStream::Qt_5_11) << false;
+    QTest::newRow("5.13") << int(QDataStream::Qt_5_13) << true;
+}
+
+void tst_QEasingCurve::streamInOut()
+{
+    QFETCH(int, version);
+    QFETCH(bool, equality);
+
+    QEasingCurve orig;
+    orig.addCubicBezierSegment(QPointF(0.43, 0.0025), QPointF(0.38, 0.51), QPointF(0.57, 0.99));
+
+    QEasingCurve copy;
+
+    QByteArray data;
+    QDataStream dsw(&data,QIODevice::WriteOnly);
+    QDataStream dsr(&data,QIODevice::ReadOnly);
+
+    dsw.setVersion(version);
+    dsr.setVersion(version);
+    dsw << orig;
+    dsr >> copy;
+
+    QCOMPARE(copy == orig, equality);
+}
+
 QTEST_MAIN(tst_QEasingCurve)
 #include "tst_qeasingcurve.moc"
diff --git a/tests/auto/corelib/tools/qhash/tst_qhash.cpp b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
index 0015efacfa..d70d488e96 100644
--- a/tests/auto/corelib/tools/qhash/tst_qhash.cpp
+++ b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
@@ -1480,7 +1480,6 @@ void tst_QHash::twoArguments_qHash()
 
 void tst_QHash::initializerList()
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QHash<int, QString> hash = {{1, "bar"}, {1, "hello"}, {2, "initializer_list"}};
     QCOMPARE(hash.count(), 2);
     QCOMPARE(hash[1], QString("hello"));
@@ -1507,9 +1506,6 @@ void tst_QHash::initializerList()
 
     QMultiHash<int, float> emptyPairs2{{}, {}};
     QVERIFY(!emptyPairs2.isEmpty());
-#else
-    QSKIP("Compiler doesn't support initializer lists");
-#endif
 }
 
 void tst_QHash::eraseValidIteratorOnSharedHash()
diff --git a/tests/auto/corelib/tools/qline/tst_qline.cpp b/tests/auto/corelib/tools/qline/tst_qline.cpp
index ae65d8f697..915a24a1f6 100644
--- a/tests/auto/corelib/tools/qline/tst_qline.cpp
+++ b/tests/auto/corelib/tools/qline/tst_qline.cpp
@@ -205,7 +205,7 @@ void tst_QLine::testIntersection()
 
 
     QPointF ip;
-    QLineF::IntersectType itype = a.intersect(b, &ip);
+    QLineF::IntersectionType itype = a.intersect(b, &ip);
 
     QCOMPARE(int(itype), type);
     if (type != QLineF::NoIntersection) {
diff --git a/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp b/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
index f17d6695f0..deb3b68c5c 100644
--- a/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
+++ b/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
@@ -1005,7 +1005,6 @@ void tst_QLinkedList::testSTLIteratorsComplex() const
 
 void tst_QLinkedList::initializeList() const
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QLinkedList<int> v1 { 2, 3, 4 };
     QCOMPARE(v1, QLinkedList<int>() << 2 << 3 << 4);
     QCOMPARE(v1, (QLinkedList<int> { 2, 3, 4}));
@@ -1014,7 +1013,6 @@ void tst_QLinkedList::initializeList() const
     QLinkedList<QLinkedList<int>> v3;
     v3 << v1 << (QLinkedList<int>() << 1) << QLinkedList<int>() << v1;
     QCOMPARE(v3, v2);
-#endif
 }
 
 
diff --git a/tests/auto/corelib/tools/qlist/tst_qlist.cpp b/tests/auto/corelib/tools/qlist/tst_qlist.cpp
index b3f8130d27..5a485e88d2 100644
--- a/tests/auto/corelib/tools/qlist/tst_qlist.cpp
+++ b/tests/auto/corelib/tools/qlist/tst_qlist.cpp
@@ -364,12 +364,14 @@ private slots:
     void takeLastOptimal() const;
     void takeLastMovable() const;
     void takeLastComplex() const;
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     void toSetOptimal() const;
     void toSetMovable() const;
     void toSetComplex() const;
     void toStdListOptimal() const;
     void toStdListMovable() const;
     void toStdListComplex() const;
+#endif
     void toVectorOptimal() const;
     void toVectorMovable() const;
     void toVectorComplex() const;
@@ -426,8 +428,10 @@ private:
     template<typename T> void takeAt() const;
     template<typename T> void takeFirst() const;
     template<typename T> void takeLast() const;
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
     template<typename T> void toSet() const;
     template<typename T> void toStdList() const;
+#endif
     template<typename T> void toVector() const;
     template<typename T> void value() const;
 
@@ -1457,11 +1461,11 @@ void tst_QList::swap() const
     list << T_FOO << T_BAR << T_BAZ;
 
     // swap
-    list.swap(0, 2);
+    list.swapItemsAt(0, 2);
     QCOMPARE(list, QList<T>() << T_BAZ << T_BAR << T_FOO);
 
     // swap again
-    list.swap(1, 2);
+    list.swapItemsAt(1, 2);
     QCOMPARE(list, QList<T>() << T_BAZ << T_FOO << T_BAR);
 
     QList<T> list2;
@@ -1595,6 +1599,7 @@ void tst_QList::takeLastComplex() const
     QCOMPARE(liveCount, Complex::getLiveCount());
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
 template<typename T>
 void tst_QList::toSet() const
 {
@@ -1669,6 +1674,7 @@ void tst_QList::toStdListComplex() const
     toStdList<Complex>();
     QCOMPARE(liveCount, Complex::getLiveCount());
 }
+#endif
 
 template<typename T>
 void tst_QList::toVector() const
@@ -1871,7 +1877,6 @@ void tst_QList::testSTLIteratorsComplex() const
 
 void tst_QList::initializeList() const
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QList<int> v1{2,3,4};
     QCOMPARE(v1, QList<int>() << 2 << 3 << 4);
     QCOMPARE(v1, (QList<int>{2,3,4}));
@@ -1880,7 +1885,6 @@ void tst_QList::initializeList() const
     QList<QList<int>> v3;
     v3 << v1 << (QList<int>() << 1) << QList<int>() << v1;
     QCOMPARE(v3, v2);
-#endif
 }
 
 template<typename T>
diff --git a/tests/auto/corelib/tools/qmap/tst_qmap.cpp b/tests/auto/corelib/tools/qmap/tst_qmap.cpp
index b39444e76f..d66fd28779 100644
--- a/tests/auto/corelib/tools/qmap/tst_qmap.cpp
+++ b/tests/auto/corelib/tools/qmap/tst_qmap.cpp
@@ -1319,7 +1319,6 @@ void tst_QMap::checkMostLeftNode()
 
 void tst_QMap::initializerList()
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QMap<int, QString> map = {{1, "bar"}, {1, "hello"}, {2, "initializer_list"}};
     QCOMPARE(map.count(), 2);
     QCOMPARE(map[1], QString("hello"));
@@ -1346,9 +1345,6 @@ void tst_QMap::initializerList()
 
     QMultiMap<float, float> emptyPairs2{{}, {}};
     QVERIFY(!emptyPairs2.isEmpty());
-#else
-    QSKIP("Compiler doesn't support initializer lists");
-#endif
 }
 
 void tst_QMap::testInsertWithHint()
diff --git a/tests/auto/corelib/tools/qpair/qpair.pro b/tests/auto/corelib/tools/qpair/qpair.pro
index 659be887d3..d684a24a57 100644
--- a/tests/auto/corelib/tools/qpair/qpair.pro
+++ b/tests/auto/corelib/tools/qpair/qpair.pro
@@ -2,3 +2,6 @@ CONFIG += testcase
 TARGET = tst_qpair
 QT = core testlib
 SOURCES = tst_qpair.cpp
+
+# Force C++17 if available (needed due to Q_COMPILER_DEDUCTION_GUIDES)
+contains(QT_CONFIG, c++1z): CONFIG += c++1z
diff --git a/tests/auto/corelib/tools/qpair/tst_qpair.cpp b/tests/auto/corelib/tools/qpair/tst_qpair.cpp
index dedc353e67..3c972329bc 100644
--- a/tests/auto/corelib/tools/qpair/tst_qpair.cpp
+++ b/tests/auto/corelib/tools/qpair/tst_qpair.cpp
@@ -39,6 +39,7 @@ private Q_SLOTS:
     void testConstexpr();
     void testConversions();
     void taskQTBUG_48780_pairContainingCArray();
+    void testDeducationRules();
 };
 
 class C { C() {} char _[4]; };
@@ -202,5 +203,30 @@ void tst_QPair::taskQTBUG_48780_pairContainingCArray()
     Q_UNUSED(pair);
 }
 
+void tst_QPair::testDeducationRules()
+{
+#if defined(__cpp_deduction_guides) && __cpp_deduction_guides >= 201606
+    QPair p1{1, 2};
+    static_assert(std::is_same<decltype(p1)::first_type, decltype(1)>::value);
+    static_assert(std::is_same<decltype(p1)::second_type, decltype(2)>::value);
+    QCOMPARE(p1.first, 1);
+    QCOMPARE(p1.second, 2);
+
+    QPair p2{QString("string"), 2};
+    static_assert(std::is_same<decltype(p2)::first_type, QString>::value);
+    static_assert(std::is_same<decltype(p2)::second_type, decltype(2)>::value);
+    QCOMPARE(p2.first, "string");
+    QCOMPARE(p2.second, 2);
+
+    QPair p3(p2);
+    static_assert(std::is_same<decltype(p3)::first_type, decltype(p2)::first_type>::value);
+    static_assert(std::is_same<decltype(p3)::second_type, decltype(p2)::second_type>::value);
+    QCOMPARE(p3.first, "string");
+    QCOMPARE(p3.second, 2);
+#else
+    QSKIP("Unsupported");
+#endif
+}
+
 QTEST_APPLESS_MAIN(tst_QPair)
 #include "tst_qpair.moc"
diff --git a/tests/auto/corelib/tools/qscopedvaluerollback/tst_qscopedvaluerollback.cpp b/tests/auto/corelib/tools/qscopedvaluerollback/tst_qscopedvaluerollback.cpp
index 656dd6a6e3..9b607db608 100644
--- a/tests/auto/corelib/tools/qscopedvaluerollback/tst_qscopedvaluerollback.cpp
+++ b/tests/auto/corelib/tools/qscopedvaluerollback/tst_qscopedvaluerollback.cpp
@@ -46,6 +46,7 @@ private Q_SLOTS:
     void rollbackToPreviousCommit();
     void exceptions();
     void earlyExitScope();
+    void moveOnly();
 private:
     void earlyExitScope_helper(int exitpoint, int &member);
 };
@@ -190,5 +191,17 @@ void tst_QScopedValueRollback::earlyExitScope_helper(int exitpoint, int& member)
     r.commit();
 }
 
+void tst_QScopedValueRollback::moveOnly()
+{
+    std::unique_ptr<int> uniquePtr;
+    std::unique_ptr<int> newVal(new int(5));
+    QVERIFY(!uniquePtr);
+    {
+        QScopedValueRollback<std::unique_ptr<int>> r(uniquePtr, std::move(newVal));
+        QVERIFY(uniquePtr);
+    }
+    QVERIFY(!uniquePtr);
+}
+
 QTEST_MAIN(tst_QScopedValueRollback)
 #include "tst_qscopedvaluerollback.moc"
diff --git a/tests/auto/corelib/tools/qset/tst_qset.cpp b/tests/auto/corelib/tools/qset/tst_qset.cpp
index 0b60350380..31b4c0449e 100644
--- a/tests/auto/corelib/tools/qset/tst_qset.cpp
+++ b/tests/auto/corelib/tools/qset/tst_qset.cpp
@@ -955,7 +955,6 @@ void tst_QSet::makeSureTheComfortFunctionsCompile()
 
 void tst_QSet::initializerList()
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QSet<int> set = {1, 1, 2, 3, 4, 5};
     QCOMPARE(set.count(), 5);
     QVERIFY(set.contains(1));
@@ -976,9 +975,6 @@ void tst_QSet::initializerList()
 
     QSet<int> set3{{}, {}, {}};
     QVERIFY(!set3.isEmpty());
-#else
-    QSKIP("Compiler doesn't support initializer lists");
-#endif
 }
 
 void tst_QSet::qhash()
@@ -1011,15 +1007,7 @@ void tst_QSet::qhash()
     // check that sets of sets work:
     //
     {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
         QSet<QSet<int> > intSetSet = { { 0, 1, 2 }, { 0, 1 }, { 1, 2 } };
-#else
-        QSet<QSet<int> > intSetSet;
-        QSet<int> intSet01, intSet12;
-        intSet01 << 0 << 1;
-        intSet12 << 1 << 2;
-        intSetSet << intSet01 << intSet12 << (intSet01|intSet12);
-#endif
         QCOMPARE(intSetSet.size(), 3);
     }
 }
diff --git a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
index ade9c5e754..42792b5310 100644
--- a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
+++ b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
@@ -78,6 +78,7 @@ private slots:
     void sharedPointerFromQObjectWithWeak();
     void weakQObjectFromSharedPointer();
     void objectCast();
+    void objectCastStdSharedPtr();
     void differentPointers();
     void virtualBaseDifferentPointers();
 #ifndef QTEST_NO_RTTI
@@ -89,9 +90,7 @@ private slots:
 #endif
     void constCorrectness();
     void customDeleter();
-#ifdef Q_COMPILER_LAMBDA
     void lambdaCustomDeleter();
-#endif
     void creating();
     void creatingCvQualified();
     void creatingVariadic();
@@ -226,13 +225,11 @@ struct NoDefaultConstructorConstRef2
     NoDefaultConstructorConstRef2(const QByteArray &ba, int i = 42) : str(QString::fromLatin1(ba)), i(i) {}
 };
 
-#ifdef Q_COMPILER_RVALUE_REFS
 struct NoDefaultConstructorRRef1
 {
     int &i;
     NoDefaultConstructorRRef1(int &&i) : i(i) {}
 };
-#endif
 
 void tst_QSharedPointer::basics_data()
 {
@@ -501,7 +498,6 @@ void tst_QSharedPointer::swap()
 
 void tst_QSharedPointer::moveSemantics()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     QSharedPointer<int> p1, p2(new int(42)), control = p2;
     QVERIFY(p1 != control);
     QVERIFY(p1.isNull());
@@ -554,9 +550,6 @@ void tst_QSharedPointer::moveSemantics()
     QVERIFY(w1.isNull());
     QVERIFY(w2.isNull());
     QVERIFY(w3.isNull());
-#else
-    QSKIP("This test requires C++11 rvalue/move semantics support in the compiler.");
-#endif
 }
 
 void tst_QSharedPointer::useOfForwardDeclared()
@@ -573,10 +566,10 @@ void tst_QSharedPointer::useOfForwardDeclared()
 
     // move assignment:
     QSharedPointer<ForwardDeclared> sp4;
-    sp4 = qMove(sp);
+    sp4 = std::move(sp);
 
     // and move constuction:
-    QSharedPointer<ForwardDeclared> sp5 = qMove(sp2);
+    QSharedPointer<ForwardDeclared> sp5 = std::move(sp2);
 
     // swapping:
     sp4.swap(sp3);
@@ -1115,6 +1108,60 @@ void tst_QSharedPointer::objectCast()
     safetyCheck();
 }
 
+
+void tst_QSharedPointer::objectCastStdSharedPtr()
+{
+    {
+        OtherObject *data = new OtherObject;
+        std::shared_ptr<QObject> baseptr = std::shared_ptr<QObject>(data);
+        QVERIFY(baseptr.get() == data);
+
+        // perform successful object cast
+        std::shared_ptr<OtherObject> ptr = qobject_pointer_cast<OtherObject>(baseptr);
+        QVERIFY(ptr.get());
+        QVERIFY(ptr.get() == data);
+
+        QVERIFY(baseptr.get() == data);
+    }
+
+    {
+        OtherObject *data = new OtherObject;
+        std::shared_ptr<QObject> baseptr = std::shared_ptr<QObject>(data);
+        QVERIFY(baseptr.get() == data);
+
+        // perform successful object cast
+        std::shared_ptr<OtherObject> ptr = qobject_pointer_cast<OtherObject>(std::move(baseptr));
+        QVERIFY(ptr.get());
+        QVERIFY(ptr.get() == data);
+
+        QVERIFY(!baseptr.get());
+    }
+
+    {
+        QObject *data = new QObject;
+        std::shared_ptr<QObject> baseptr = std::shared_ptr<QObject>(data);
+        QVERIFY(baseptr.get() == data);
+
+        // perform unsuccessful object cast
+        std::shared_ptr<OtherObject> ptr = qobject_pointer_cast<OtherObject>(baseptr);
+        QVERIFY(!ptr.get());
+
+        QVERIFY(baseptr.get() == data);
+    }
+
+    {
+        QObject *data = new QObject;
+        std::shared_ptr<QObject> baseptr = std::shared_ptr<QObject>(data);
+        QVERIFY(baseptr.get() == data);
+
+        // perform unsuccessful object cast
+        std::shared_ptr<OtherObject> ptr = qobject_pointer_cast<OtherObject>(std::move(baseptr));
+        QVERIFY(!ptr.get());
+
+        QVERIFY(baseptr.get() == data);
+    }
+}
+
 void tst_QSharedPointer::differentPointers()
 {
     {
@@ -1670,7 +1717,6 @@ void tst_QSharedPointer::customDeleter()
     safetyCheck();
 }
 
-#ifdef Q_COMPILER_LAMBDA
 // The compiler needs to be in C++11 mode and to support lambdas
 void tst_QSharedPointer::lambdaCustomDeleter()
 {
@@ -1698,7 +1744,6 @@ void tst_QSharedPointer::lambdaCustomDeleter()
     }
     safetyCheck();
 }
-#endif
 
 void customQObjectDeleterFn(QObject *obj)
 {
@@ -2233,11 +2278,9 @@ void tst_QSharedPointer::invalidConstructs_data()
         << &QTest::QExternalTest::tryCompileFail
         << "struct IncompatibleCustomDeleter { void operator()(int *); };\n"
            "QSharedPointer<Data> ptr(new Data, IncompatibleCustomDeleter());\n";
-#ifdef Q_COMPILER_LAMBDA
     QTest::newRow("incompatible-custom-lambda-deleter")
         << &QTest::QExternalTest::tryCompileFail
         << "QSharedPointer<Data> ptr(new Data, [](int *) {});\n";
-#endif
 }
 
 void tst_QSharedPointer::invalidConstructs()
diff --git a/tests/auto/corelib/tools/qstring/tst_qstring.cpp b/tests/auto/corelib/tools/qstring/tst_qstring.cpp
index e8ed22e427..79f5a8c46d 100644
--- a/tests/auto/corelib/tools/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/tools/qstring/tst_qstring.cpp
@@ -482,8 +482,8 @@ private slots:
     void indexOf2();
     void indexOf3_data();
 //  void indexOf3();
-    void sprintf();
-    void sprintfS();
+    void asprintf();
+    void asprintfS();
     void fill();
     void truncate();
     void chop_data();
@@ -578,7 +578,7 @@ private slots:
 #ifdef QT_USE_ICU
     void toUpperLower_icu();
 #endif
-#if !defined(QT_NO_UNICODE_LITERAL) && defined(Q_COMPILER_LAMBDA)
+#if !defined(QT_NO_UNICODE_LITERAL)
     void literals();
 #endif
     void eightBitLiterals_data();
@@ -612,7 +612,7 @@ QString verifyZeroTermination(const QString &str)
     int strSize = str.size();
     QChar strTerminator = str.constData()[strSize];
     if (QChar('\0') != strTerminator)
-        return QString::fromAscii(
+        return QString::fromLatin1(
             "*** Result ('%1') not null-terminated: 0x%2 ***").arg(str)
                 .arg(strTerminator.unicode(), 4, 16, QChar('0'));
 
@@ -625,11 +625,11 @@ QString verifyZeroTermination(const QString &str)
 
     const_cast<QChar *>(strData)[strSize] = QChar('x');
     if (QChar('x') != str.constData()[strSize]) {
-        return QString::fromAscii("*** Failed to replace null-terminator in "
+        return QString::fromLatin1("*** Failed to replace null-terminator in "
                 "result ('%1') ***").arg(str);
     }
     if (str != strCopy) {
-        return QString::fromAscii( "*** Result ('%1') differs from its copy "
+        return QString::fromLatin1( "*** Result ('%1') differs from its copy "
                 "after null-terminator was replaced ***").arg(str);
     }
     const_cast<QChar *>(strData)[strSize] = QChar('\0'); // Restore sanity
@@ -1075,9 +1075,8 @@ void tst_QString::isNull()
     QString a;
     QVERIFY(a.isNull());
 
-    const char *zero = 0;
-    a.sprintf( zero );
-    QVERIFY(!a.isNull());
+    const char *zero = nullptr;
+    QVERIFY(!QString::asprintf(zero).isNull());
 }
 
 QT_WARNING_POP
@@ -1263,75 +1262,66 @@ static inline const void *ptrValue(quintptr v)
     return reinterpret_cast<const void *>(v);
 }
 
-void tst_QString::sprintf()
+void tst_QString::asprintf()
 {
     QString a;
-    a.sprintf("COMPARE");
-    QCOMPARE(a, QLatin1String("COMPARE"));
-    a.sprintf("%%%d",1);
-    QCOMPARE(a, QLatin1String("%1"));
-    QCOMPARE(a.sprintf("X%dY",2), QLatin1String("X2Y"));
-    QCOMPARE(a.sprintf("X%9iY", 50000 ), QLatin1String("X    50000Y"));
-    QCOMPARE(a.sprintf("X%-9sY","hello"), QLatin1String("Xhello    Y"));
-    QCOMPARE(a.sprintf("X%-9iY", 50000 ), QLatin1String("X50000    Y"));
-    QCOMPARE(a.sprintf("%lf", 1.23), QLatin1String("1.230000"));
-    QCOMPARE(a.sprintf("%lf", 1.23456789), QLatin1String("1.234568"));
-    QCOMPARE(a.sprintf("%p", ptrValue(0xbfffd350)), QLatin1String("0xbfffd350"));
-    QCOMPARE(a.sprintf("%p", ptrValue(0)), QLatin1String("0x0"));
+    QCOMPARE(QString::asprintf("COMPARE"), QLatin1String("COMPARE"));
+    QCOMPARE(QString::asprintf("%%%d", 1), QLatin1String("%1"));
+    QCOMPARE(QString::asprintf("X%dY",2), QLatin1String("X2Y"));
+    QCOMPARE(QString::asprintf("X%9iY", 50000 ), QLatin1String("X    50000Y"));
+    QCOMPARE(QString::asprintf("X%-9sY","hello"), QLatin1String("Xhello    Y"));
+    QCOMPARE(QString::asprintf("X%-9iY", 50000 ), QLatin1String("X50000    Y"));
+    QCOMPARE(QString::asprintf("%lf", 1.23), QLatin1String("1.230000"));
+    QCOMPARE(QString::asprintf("%lf", 1.23456789), QLatin1String("1.234568"));
+    QCOMPARE(QString::asprintf("%p", ptrValue(0xbfffd350)), QLatin1String("0xbfffd350"));
+    QCOMPARE(QString::asprintf("%p", ptrValue(0)), QLatin1String("0x0"));
 
     int i = 6;
     long l = -2;
     float f = 4.023f;
-    QString S1;
-    S1.sprintf("%d %ld %f",i,l,f);
-    QCOMPARE(S1, QLatin1String("6 -2 4.023000"));
+    QCOMPARE(QString::asprintf("%d %ld %f", i, l, f), QLatin1String("6 -2 4.023000"));
 
     double d = -514.25683;
-    S1.sprintf("%f",d);
-    QCOMPARE(S1, QLatin1String("-514.256830"));
+    QCOMPARE(QString::asprintf("%f", d), QLatin1String("-514.256830"));
 }
 
-void tst_QString::sprintfS()
+void tst_QString::asprintfS()
 {
-    QString a;
-    QCOMPARE(a.sprintf("%.3s", "Hello" ), QLatin1String("Hel"));
-    QCOMPARE(a.sprintf("%10.3s", "Hello" ), QLatin1String("       Hel"));
-    QCOMPARE(a.sprintf("%.10s", "Hello" ), QLatin1String("Hello"));
-    QCOMPARE(a.sprintf("%10.10s", "Hello" ), QLatin1String("     Hello"));
-    QCOMPARE(a.sprintf("%-10.10s", "Hello" ), QLatin1String("Hello     "));
-    QCOMPARE(a.sprintf("%-10.3s", "Hello" ), QLatin1String("Hel       "));
-    QCOMPARE(a.sprintf("%-5.5s", "Hello" ), QLatin1String("Hello"));
+    QCOMPARE(QString::asprintf("%.3s", "Hello" ), QLatin1String("Hel"));
+    QCOMPARE(QString::asprintf("%10.3s", "Hello" ), QLatin1String("       Hel"));
+    QCOMPARE(QString::asprintf("%.10s", "Hello" ), QLatin1String("Hello"));
+    QCOMPARE(QString::asprintf("%10.10s", "Hello" ), QLatin1String("     Hello"));
+    QCOMPARE(QString::asprintf("%-10.10s", "Hello" ), QLatin1String("Hello     "));
+    QCOMPARE(QString::asprintf("%-10.3s", "Hello" ), QLatin1String("Hel       "));
+    QCOMPARE(QString::asprintf("%-5.5s", "Hello" ), QLatin1String("Hello"));
 
     // Check utf8 conversion for %s
-    QCOMPARE(a.sprintf("%s", "\303\266\303\244\303\274\303\226\303\204\303\234\303\270\303\246\303\245\303\230\303\206\303\205"), QString::fromLatin1("\366\344\374\326\304\334\370\346\345\330\306\305"));
+    QCOMPARE(QString::asprintf("%s", "\303\266\303\244\303\274\303\226\303\204\303\234\303\270\303\246\303\245\303\230\303\206\303\205"), QString::fromLatin1("\366\344\374\326\304\334\370\346\345\330\306\305"));
 
     int n1;
-    a.sprintf("%s%n%s", "hello", &n1, "goodbye");
+    QCOMPARE(QString::asprintf("%s%n%s", "hello", &n1, "goodbye"), QString("hellogoodbye"));
     QCOMPARE(n1, 5);
-    QCOMPARE(a, QString("hellogoodbye"));
     qlonglong n2;
-    a.sprintf("%s%s%lln%s", "foo", "bar", &n2, "whiz");
+    QCOMPARE(QString::asprintf("%s%s%lln%s", "foo", "bar", &n2, "whiz"), QString("foobarwhiz"));
     QCOMPARE((int)n2, 6);
-    QCOMPARE(a, QString("foobarwhiz"));
 
     { // %ls
-        QCOMPARE(a.sprintf("%.3ls",     qUtf16Printable("Hello")), QLatin1String("Hel"));
-        QCOMPARE(a.sprintf("%10.3ls",   qUtf16Printable("Hello")), QLatin1String("       Hel"));
-        QCOMPARE(a.sprintf("%.10ls",    qUtf16Printable("Hello")), QLatin1String("Hello"));
-        QCOMPARE(a.sprintf("%10.10ls",  qUtf16Printable("Hello")), QLatin1String("     Hello"));
-        QCOMPARE(a.sprintf("%-10.10ls", qUtf16Printable("Hello")), QLatin1String("Hello     "));
-        QCOMPARE(a.sprintf("%-10.3ls",  qUtf16Printable("Hello")), QLatin1String("Hel       "));
-        QCOMPARE(a.sprintf("%-5.5ls",   qUtf16Printable("Hello")), QLatin1String("Hello"));
+        QCOMPARE(QString::asprintf("%.3ls",     qUtf16Printable("Hello")), QLatin1String("Hel"));
+        QCOMPARE(QString::asprintf("%10.3ls",   qUtf16Printable("Hello")), QLatin1String("       Hel"));
+        QCOMPARE(QString::asprintf("%.10ls",    qUtf16Printable("Hello")), QLatin1String("Hello"));
+        QCOMPARE(QString::asprintf("%10.10ls",  qUtf16Printable("Hello")), QLatin1String("     Hello"));
+        QCOMPARE(QString::asprintf("%-10.10ls", qUtf16Printable("Hello")), QLatin1String("Hello     "));
+        QCOMPARE(QString::asprintf("%-10.3ls",  qUtf16Printable("Hello")), QLatin1String("Hel       "));
+        QCOMPARE(QString::asprintf("%-5.5ls",   qUtf16Printable("Hello")), QLatin1String("Hello"));
 
         // Check utf16 is preserved for %ls
-        QCOMPARE(a.sprintf("%ls",
+        QCOMPARE(QString::asprintf("%ls",
                            qUtf16Printable("\303\266\303\244\303\274\303\226\303\204\303\234\303\270\303\246\303\245\303\230\303\206\303\205")),
                  QLatin1String("\366\344\374\326\304\334\370\346\345\330\306\305"));
 
         int n;
-        a.sprintf("%ls%n%s", qUtf16Printable("hello"), &n, "goodbye");
+        QCOMPARE(QString::asprintf("%ls%n%s", qUtf16Printable("hello"), &n, "goodbye"), QLatin1String("hellogoodbye"));
         QCOMPARE(n, 5);
-        QCOMPARE(a, QLatin1String("hellogoodbye"));
     }
 }
 
@@ -2212,12 +2202,12 @@ void tst_QString::toUpper()
 
         // call rvalue-ref while shared (the original mustn't change)
         QString copy = s;
-        QCOMPARE(qMove(copy).toUpper(), QString("GROSSSTRASSE"));
+        QCOMPARE(std::move(copy).toUpper(), QString("GROSSSTRASSE"));
         QCOMPARE(s, QString::fromUtf8("Gro\xc3\x9fstra\xc3\x9f""e"));
 
         // call rvalue-ref version on detached case
         copy.clear();
-        QCOMPARE(qMove(s).toUpper(), QString("GROSSSTRASSE"));
+        QCOMPARE(std::move(s).toUpper(), QString("GROSSSTRASSE"));
     }
 
     QString lower, upper;
@@ -2427,11 +2417,11 @@ void tst_QString::trimmed()
     QCOMPARE(a.trimmed(), QLatin1String("a"));
 
     a="Text";
-    QCOMPARE(qMove(a).trimmed(), QLatin1String("Text"));
+    QCOMPARE(std::move(a).trimmed(), QLatin1String("Text"));
     a=" ";
-    QCOMPARE(qMove(a).trimmed(), QLatin1String(""));
+    QCOMPARE(std::move(a).trimmed(), QLatin1String(""));
     a=" a   ";
-    QCOMPARE(qMove(a).trimmed(), QLatin1String("a"));
+    QCOMPARE(std::move(a).trimmed(), QLatin1String("a"));
 }
 
 void tst_QString::simplified_data()
@@ -2486,13 +2476,13 @@ void tst_QString::simplified()
 
     // without detaching:
     QString copy1 = full;
-    QCOMPARE(qMove(full).simplified(), simple);
+    QCOMPARE(std::move(full).simplified(), simple);
     QCOMPARE(full, orig_full);
 
     // force a detach
     if (!full.isEmpty())
         full[0] = full[0];
-    QCOMPARE(qMove(full).simplified(), simple);
+    QCOMPARE(std::move(full).simplified(), simple);
 }
 
 void tst_QString::insert_data(bool emptyIsNoop)
@@ -3789,7 +3779,7 @@ void tst_QString::startsWith()
     QVERIFY( !a.startsWith("C") );
     QVERIFY( !a.startsWith("ABCDEF") );
     QVERIFY( a.startsWith("") );
-    QVERIFY( a.startsWith(QString::null) );
+    QVERIFY( a.startsWith(QString()) );
     QVERIFY( a.startsWith('A') );
     QVERIFY( a.startsWith(QLatin1Char('A')) );
     QVERIFY( a.startsWith(QChar('A')) );
@@ -3816,7 +3806,7 @@ void tst_QString::startsWith()
     QVERIFY( !a.startsWith("c", Qt::CaseInsensitive) );
     QVERIFY( !a.startsWith("abcdef", Qt::CaseInsensitive) );
     QVERIFY( a.startsWith("", Qt::CaseInsensitive) );
-    QVERIFY( a.startsWith(QString::null, Qt::CaseInsensitive) );
+    QVERIFY( a.startsWith(QString(), Qt::CaseInsensitive) );
     QVERIFY( a.startsWith('a', Qt::CaseInsensitive) );
     QVERIFY( a.startsWith('A', Qt::CaseInsensitive) );
     QVERIFY( a.startsWith(QLatin1Char('a'), Qt::CaseInsensitive) );
@@ -3855,7 +3845,7 @@ void tst_QString::startsWith()
 
     a = "";
     QVERIFY( a.startsWith("") );
-    QVERIFY( a.startsWith(QString::null) );
+    QVERIFY( a.startsWith(QString()) );
     QVERIFY( !a.startsWith("ABC") );
 
     QVERIFY( a.startsWith(QLatin1String("")) );
@@ -3868,7 +3858,7 @@ void tst_QString::startsWith()
 
     a = QString();
     QVERIFY( !a.startsWith("") );
-    QVERIFY( a.startsWith(QString::null) );
+    QVERIFY( a.startsWith(QString()) );
     QVERIFY( !a.startsWith("ABC") );
 
     QVERIFY( !a.startsWith(QLatin1String("")) );
@@ -3897,7 +3887,7 @@ void tst_QString::endsWith()
     QVERIFY( !a.endsWith("C") );
     QVERIFY( !a.endsWith("ABCDEF") );
     QVERIFY( a.endsWith("") );
-    QVERIFY( a.endsWith(QString::null) );
+    QVERIFY( a.endsWith(QString()) );
     QVERIFY( a.endsWith('B') );
     QVERIFY( a.endsWith(QLatin1Char('B')) );
     QVERIFY( a.endsWith(QChar('B')) );
@@ -3924,7 +3914,7 @@ void tst_QString::endsWith()
     QVERIFY( !a.endsWith("c", Qt::CaseInsensitive) );
     QVERIFY( !a.endsWith("abcdef", Qt::CaseInsensitive) );
     QVERIFY( a.endsWith("", Qt::CaseInsensitive) );
-    QVERIFY( a.endsWith(QString::null, Qt::CaseInsensitive) );
+    QVERIFY( a.endsWith(QString(), Qt::CaseInsensitive) );
     QVERIFY( a.endsWith('b', Qt::CaseInsensitive) );
     QVERIFY( a.endsWith('B', Qt::CaseInsensitive) );
     QVERIFY( a.endsWith(QLatin1Char('b'), Qt::CaseInsensitive) );
@@ -3966,7 +3956,7 @@ void tst_QString::endsWith()
 
     a = "";
     QVERIFY( a.endsWith("") );
-    QVERIFY( a.endsWith(QString::null) );
+    QVERIFY( a.endsWith(QString()) );
     QVERIFY( !a.endsWith("ABC") );
     QVERIFY( !a.endsWith(QLatin1Char(0)) );
     QVERIFY( !a.endsWith(QLatin1Char('x')) );
@@ -3978,7 +3968,7 @@ void tst_QString::endsWith()
 
     a = QString();
     QVERIFY( !a.endsWith("") );
-    QVERIFY( a.endsWith(QString::null) );
+    QVERIFY( a.endsWith(QString()) );
     QVERIFY( !a.endsWith("ABC") );
 
     QVERIFY( !a.endsWith(QLatin1String("")) );
@@ -4534,7 +4524,7 @@ void tst_QString::toLatin1Roundtrip()
 
     // try the rvalue version of toLatin1()
     QString s = unicodesrc;
-    QCOMPARE(qMove(s).toLatin1(), latin1);
+    QCOMPARE(std::move(s).toLatin1(), latin1);
 
     // and verify that the moved-from object can still be used
     s = "foo";
@@ -4838,7 +4828,7 @@ void tst_QString::arg()
     QCOMPARE( QString("%1").arg("hello", 10), QLatin1String("     hello") );
     QCOMPARE( QString("%1%1").arg("hello"), QLatin1String("hellohello") );
     QCOMPARE( QString("%2%1").arg("hello"), QLatin1String("%2hello") );
-    QCOMPARE( QString("%1%1").arg(QString::null), QLatin1String("") );
+    QCOMPARE( QString("%1%1").arg(QString()), QLatin1String("") );
     QCOMPARE( QString("%2%1").arg(""), QLatin1String("%2") );
 
     QCOMPARE( QString("%2 %L1").arg(12345.6789).arg(12345.6789),
@@ -4934,9 +4924,7 @@ void tst_QString::doubleOut()
     QCOMPARE(QString::number(micro), expect);
     QCOMPARE(QString("%1").arg(micro), expect);
     {
-        QString text;
-        text.sprintf("%g", micro);
-        QCOMPARE(text, expect);
+        QCOMPARE(QString::asprintf("%g", micro), expect);
     }
     {
         QString text;
@@ -5480,8 +5468,6 @@ void tst_QString::tortureSprintfDouble()
 {
     const SprintfDoubleData *data = g_sprintf_double_data;
 
-    QString s;
-
     for (; data->fmt != 0; ++data) {
         double d;
         char *buff = (char *)&d;
@@ -5496,7 +5482,7 @@ void tst_QString::tortureSprintfDouble()
         for (uint i = 0; i < 8; ++i)
             buff[7 - i] = data->bytes[i];
 #        endif
-        s.sprintf(data->fmt, d);
+        const QString s = QString::asprintf(data->fmt, d);
 #ifdef QT_NO_FPU // reduced precision when running with hardfloats in qemu
         if (d - 0.1 < 1e12)
             QSKIP("clib sprintf doesn't fill with 0's on this platform");
@@ -6450,32 +6436,24 @@ void tst_QString::QCharRefDetaching() const
 void tst_QString::sprintfZU() const
 {
     {
-        QString string;
         size_t s = 6;
-        string.sprintf("%zu", s);
-        QCOMPARE(string, QString::fromLatin1("6"));
+        QCOMPARE(QString::asprintf("%zu", s), QString::fromLatin1("6"));
     }
 
     {
-        QString string;
-        string.sprintf("%s\n", "foo");
-        QCOMPARE(string, QString::fromLatin1("foo\n"));
+        QCOMPARE(QString::asprintf("%s\n", "foo"), QString::fromLatin1("foo\n"));
     }
 
     {
         /* This code crashed. I don't know how to reduce it further. In other words,
          * both %zu and %s needs to be present. */
         size_t s = 6;
-        QString string;
-        string.sprintf("%zu%s", s, "foo");
-        QCOMPARE(string, QString::fromLatin1("6foo"));
+        QCOMPARE(QString::asprintf("%zu%s", s, "foo"), QString::fromLatin1("6foo"));
     }
 
     {
         size_t s = 6;
-        QString string;
-        string.sprintf("%zu %s\n", s, "foo");
-        QCOMPARE(string, QString::fromLatin1("6 foo\n"));
+        QCOMPARE(QString::asprintf("%zu %s\n", s, "foo"), QString::fromLatin1("6 foo\n"));
     }
 }
 
@@ -6643,7 +6621,7 @@ void tst_QString::toUpperLower_icu()
 }
 #endif
 
-#if !defined(QT_NO_UNICODE_LITERAL) && defined(Q_COMPILER_LAMBDA)
+#if !defined(QT_NO_UNICODE_LITERAL)
 // Only tested on c++0x compliant compiler or gcc
 void tst_QString::literals()
 {
diff --git a/tests/auto/corelib/tools/qstringapisymmetry/tst_qstringapisymmetry.cpp b/tests/auto/corelib/tools/qstringapisymmetry/tst_qstringapisymmetry.cpp
index cb1fd9eb7d..b52c15fd73 100644
--- a/tests/auto/corelib/tools/qstringapisymmetry/tst_qstringapisymmetry.cpp
+++ b/tests/auto/corelib/tools/qstringapisymmetry/tst_qstringapisymmetry.cpp
@@ -416,6 +416,47 @@ private Q_SLOTS:
     void toUcs4_QStringRef() { toUcs4_impl<QStringRef>(); }
     void toUcs4_QStringView_data() { toUcs4_data(); }
     void toUcs4_QStringView() { toUcs4_impl<QStringView>(); }
+
+private:
+    template <typename Haystack, typename Needle> void indexOf_impl() const;
+    void indexOf_data();
+
+private Q_SLOTS:
+    void indexOf_QString_QString_data() { indexOf_data(); }
+    void indexOf_QString_QString() { indexOf_impl<QString, QString>(); }
+    void indexOf_QString_QLatin1String_data() { indexOf_data(); }
+    void indexOf_QString_QLatin1String() { indexOf_impl<QString, QLatin1String>(); }
+    void indexOf_QString_QStringRef_data() { indexOf_data(); }
+    void indexOf_QString_QStringRef() { indexOf_impl<QString, QStringRef>(); }
+    void indexOf_QString_QStringView_data() { indexOf_data(); }
+    void indexOf_QString_QStringView() { indexOf_impl<QString, QStringView>(); }
+
+    void indexOf_QLatin1String_QString_data() { indexOf_data(); }
+    void indexOf_QLatin1String_QString() { indexOf_impl<QLatin1String, QString>(); }
+    void indexOf_QLatin1String_QLatin1String_data() { indexOf_data(); }
+    void indexOf_QLatin1String_QLatin1String() { indexOf_impl<QLatin1String, QLatin1String>(); }
+    void indexOf_QLatin1String_QStringRef_data() { indexOf_data(); }
+    void indexOf_QLatin1String_QStringRef() { indexOf_impl<QLatin1String, QStringRef>(); }
+    void indexOf_QLatin1String_QStringView_data() { indexOf_data(); }
+    void indexOf_QLatin1String_QStringView() { indexOf_impl<QLatin1String, QStringView>(); }
+
+    void indexOf_QStringRef_QString_data() { indexOf_data(); }
+    void indexOf_QStringRef_QString() { indexOf_impl<QStringRef, QString>(); }
+    void indexOf_QStringRef_QLatin1String_data() { indexOf_data(); }
+    void indexOf_QStringRef_QLatin1String() { indexOf_impl<QStringRef, QLatin1String>(); }
+    void indexOf_QStringRef_QStringRef_data() { indexOf_data(); }
+    void indexOf_QStringRef_QStringRef() { indexOf_impl<QStringRef, QStringRef>(); }
+    void indexOf_QStringRef_QStringView_data() { indexOf_data(); }
+    void indexOf_QStringRef_QStringView() { indexOf_impl<QStringRef, QStringView>(); }
+
+    void indexOf_QStringView_QString_data() { indexOf_data(); }
+    void indexOf_QStringView_QString() { indexOf_impl<QStringView, QString>(); }
+    void indexOf_QStringView_QLatin1String_data() { indexOf_data(); }
+    void indexOf_QStringView_QLatin1String() { indexOf_impl<QStringView, QLatin1String>(); }
+    void indexOf_QStringView_QStringRef_data() { indexOf_data(); }
+    void indexOf_QStringView_QStringRef() { indexOf_impl<QStringView, QStringRef>(); }
+    void indexOf_QStringView_QStringView_data() { indexOf_data(); }
+    void indexOf_QStringView_QStringView() { indexOf_impl<QStringView, QStringView>(); }
 };
 
 void tst_QStringApiSymmetry::compare_data(bool hasConceptOfNullAndEmpty)
@@ -540,6 +581,7 @@ void tst_QStringApiSymmetry::compare_impl() const
 }
 
 static QString empty = QLatin1String("");
+static QString null;
 // the tests below rely on the fact that these objects' names match their contents:
 static QString a = QStringLiteral("a");
 static QString A = QStringLiteral("A");
@@ -1216,6 +1258,109 @@ void tst_QStringApiSymmetry::toUcs4_impl()
     QCOMPARE(unicode.isEmpty(), ucs4.isEmpty());
 }
 
+void tst_QStringApiSymmetry::indexOf_data()
+{
+    QTest::addColumn<QString>("haystackU16");
+    QTest::addColumn<QLatin1String>("haystackL1");
+    QTest::addColumn<QString>("needleU16");
+    QTest::addColumn<QLatin1String>("needleL1");
+    QTest::addColumn<qsizetype>("startpos");
+    QTest::addColumn<qsizetype>("resultCS");
+    QTest::addColumn<qsizetype>("resultCIS");
+
+    constexpr qsizetype zeroPos = 0;
+    constexpr qsizetype minus1Pos = -1;
+
+    QTest::addRow("haystack: null, needle: null") << null << QLatin1String()
+                                     << null << QLatin1String() << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: empty, needle: null")  << empty << QLatin1String("")
+                                     << null << QLatin1String() << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: a, needle: null") << a << QLatin1String("a")
+                                     << null << QLatin1String() << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: null, needle: empty") << null << QLatin1String()
+                                     << empty << QLatin1String("") << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: a, needle: empty") << a << QLatin1String("a")
+                                     << empty << QLatin1String("") << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: empty, needle: empty") << empty << QLatin1String("")
+                                     << empty << QLatin1String("") << zeroPos << zeroPos << zeroPos;
+    QTest::addRow("haystack: empty, needle: a") << empty << QLatin1String("")
+                                     << a << QLatin1String("a") << zeroPos << minus1Pos << minus1Pos;
+    QTest::addRow("haystack: null, needle: a") << null << QLatin1String()
+                                     << a << QLatin1String("a") << zeroPos << minus1Pos << minus1Pos;
+
+
+#define ROW(h, n, st, cs, cis) \
+    QTest::addRow("haystack: %s, needle: %s", #h, #n) << h << QLatin1String(#h) \
+                                       << n << QLatin1String(#n) \
+                                       << qsizetype(st) << qsizetype(cs) << qsizetype(cis)
+
+    ROW(abc, a, 0,  0,  0);
+    ROW(abc, A, 0, -1,  0);
+    ROW(abc, a, 1, -1, -1);
+    ROW(abc, A, 1, -1, -1);
+    ROW(abc, b, 0,  1,  1);
+    ROW(abc, B, 0, -1,  1);
+    ROW(abc, b, 1,  1,  1);
+    ROW(abc, B, 1, -1,  1);
+    ROW(abc, B, 2, -1, -1);
+
+    ROW(ABC, A, 0,  0,  0);
+    ROW(ABC, a, 0, -1,  0);
+    ROW(ABC, A, 1, -1, -1);
+    ROW(ABC, a, 1, -1, -1);
+    ROW(ABC, B, 0,  1,  1);
+    ROW(ABC, b, 0, -1,  1);
+    ROW(ABC, B, 1,  1,  1);
+    ROW(ABC, b, 1, -1,  1);
+    ROW(ABC, B, 2, -1, -1);
+
+    ROW(aBc, bc, 0, -1,  1);
+    ROW(aBc, Bc, 0,  1,  1);
+    ROW(aBc, bC, 0, -1,  1);
+    ROW(aBc, BC, 0, -1,  1);
+
+    ROW(AbC, bc, 0, -1,  1);
+    ROW(AbC, Bc, 0, -1,  1);
+    ROW(AbC, bC, 0,  1,  1);
+    ROW(AbC, BC, 0, -1,  1);
+    ROW(AbC, BC, 1, -1,  1);
+    ROW(AbC, BC, 2, -1, -1);
+#undef ROW
+
+}
+
+template <typename Haystack, typename Needle>
+void tst_QStringApiSymmetry::indexOf_impl() const
+{
+    QFETCH(const QString, haystackU16);
+    QFETCH(const QLatin1String, haystackL1);
+    QFETCH(const QString, needleU16);
+    QFETCH(const QLatin1String, needleL1);
+    QFETCH(const qsizetype, startpos);
+    QFETCH(const qsizetype, resultCS);
+    QFETCH(const qsizetype, resultCIS);
+
+    const auto haystackU8 = haystackU16.toUtf8();
+    const auto needleU8 = needleU16.toUtf8();
+
+    const auto haystack = make<Haystack>(QStringRef(&haystackU16), haystackL1, haystackU8);
+    const auto needle = make<Needle>(QStringRef(&needleU16), needleL1, needleU8);
+
+    using size_type = typename Haystack::size_type;
+
+    QCOMPARE(haystack.indexOf(needle, startpos), size_type(resultCS));
+    QCOMPARE(haystack.indexOf(needle, startpos, Qt::CaseSensitive), size_type(resultCS));
+    QCOMPARE(haystack.indexOf(needle, startpos, Qt::CaseInsensitive), size_type(resultCIS));
+
+    if (needle.size() == 1)
+    {
+        QCOMPARE(haystack.indexOf(needle[0], startpos), size_type(resultCS));
+        QCOMPARE(haystack.indexOf(needle[0], startpos, Qt::CaseSensitive), size_type(resultCS));
+        QCOMPARE(haystack.indexOf(needle[0], startpos, Qt::CaseInsensitive), size_type(resultCIS));
+    }
+}
+
+
 QTEST_APPLESS_MAIN(tst_QStringApiSymmetry)
 
 #include "tst_qstringapisymmetry.moc"
diff --git a/tests/auto/corelib/tools/qstringlist/tst_qstringlist.cpp b/tests/auto/corelib/tools/qstringlist/tst_qstringlist.cpp
index 42bdf62a93..2b5aa8e98b 100644
--- a/tests/auto/corelib/tools/qstringlist/tst_qstringlist.cpp
+++ b/tests/auto/corelib/tools/qstringlist/tst_qstringlist.cpp
@@ -30,13 +30,17 @@
 #include <qregexp.h>
 #include <qregularexpression.h>
 #include <qstringlist.h>
+#include <qvector.h>
 
 #include <locale.h>
 
+#include <algorithm>
+
 class tst_QStringList : public QObject
 {
     Q_OBJECT
 private slots:
+    void constructors();
     void sort();
     void filter();
     void replaceInStrings();
@@ -59,13 +63,44 @@ private slots:
     void joinChar() const;
     void joinChar_data() const;
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     void initializeList() const;
-#endif
 };
 
 extern const char email[];
 
+void tst_QStringList::constructors()
+{
+    {
+        QStringList list;
+        QVERIFY(list.isEmpty());
+        QCOMPARE(list.size(), 0);
+        QVERIFY(list == QStringList());
+    }
+    {
+        QString str = "abc";
+        QStringList list(str);
+        QVERIFY(!list.isEmpty());
+        QCOMPARE(list.size(), 1);
+        QCOMPARE(list.at(0), str);
+    }
+    {
+        QStringList list{ "a", "b", "c" };
+        QVERIFY(!list.isEmpty());
+        QCOMPARE(list.size(), 3);
+        QCOMPARE(list.at(0), "a");
+        QCOMPARE(list.at(1), "b");
+        QCOMPARE(list.at(2), "c");
+    }
+    {
+        const QVector<QString> reference{ "a", "b", "c" };
+        QCOMPARE(reference.size(), 3);
+
+        QStringList list(reference.cbegin(), reference.cend());
+        QCOMPARE(list.size(), reference.size());
+        QVERIFY(std::equal(list.cbegin(), list.cend(), reference.cbegin()));
+    }
+}
+
 void tst_QStringList::indexOf_regExp()
 {
     QStringList list;
@@ -482,8 +517,6 @@ void tst_QStringList::joinEmptiness() const
     QVERIFY(string.isNull());
 }
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
-// C++0x support is required
 void tst_QStringList::initializeList() const
 {
 
@@ -491,7 +524,6 @@ void tst_QStringList::initializeList() const
     QCOMPARE(v1, (QStringList() << "hello" << "world" << "plop"));
     QCOMPARE(v1, (QStringList{"hello","world","plop"}));
 }
-#endif
 
 QTEST_APPLESS_MAIN(tst_QStringList)
 #include "tst_qstringlist.moc"
diff --git a/tests/auto/corelib/tools/qstringmatcher/tst_qstringmatcher.cpp b/tests/auto/corelib/tools/qstringmatcher/tst_qstringmatcher.cpp
index 8a55f54449..2d577bb0ab 100644
--- a/tests/auto/corelib/tools/qstringmatcher/tst_qstringmatcher.cpp
+++ b/tests/auto/corelib/tools/qstringmatcher/tst_qstringmatcher.cpp
@@ -100,6 +100,11 @@ void tst_QStringMatcher::indexIn()
     matcher.setPattern(needle);
 
     QCOMPARE(matcher.indexIn(haystack, from), indexIn);
+
+    const auto needleSV = QStringView(needle);
+    QStringMatcher matcherSV(needleSV);
+
+    QCOMPARE(matcherSV.indexIn(QStringView(haystack), from), indexIn);
 }
 
 void tst_QStringMatcher::setCaseSensitivity_data()
@@ -128,6 +133,7 @@ void tst_QStringMatcher::setCaseSensitivity()
     matcher.setCaseSensitivity(static_cast<Qt::CaseSensitivity> (cs));
 
     QCOMPARE(matcher.indexIn(haystack, from), indexIn);
+    QCOMPARE(matcher.indexIn(QStringView(haystack), from), indexIn);
 }
 
 void tst_QStringMatcher::assignOperator()
diff --git a/tests/auto/corelib/tools/qtime/tst_qtime.cpp b/tests/auto/corelib/tools/qtime/tst_qtime.cpp
index 3e5724213e..3403c5bf7f 100644
--- a/tests/auto/corelib/tools/qtime/tst_qtime.cpp
+++ b/tests/auto/corelib/tools/qtime/tst_qtime.cpp
@@ -95,8 +95,9 @@ void tst_QTime::addSecs_data()
 
     QTest::newRow("Data0") << QTime(0,0,0) << 200 << QTime(0,3,20);
     QTest::newRow("Data1") << QTime(0,0,0) << 20 << QTime(0,0,20);
-    QTest::newRow("overflow") << QTime(0,0,0) << (INT_MAX / 1000 + 1)
-                              << QTime(0,0,0).addSecs((INT_MAX / 1000 + 1) % 86400);
+    QTest::newRow("overflow")
+        << QTime(0,0,0) << (INT_MAX / 1000 + 1)
+        << QTime::fromMSecsSinceStartOfDay(((INT_MAX / 1000 + 1) % 86400) * 1000);
 }
 
 void tst_QTime::addSecs()
diff --git a/tests/auto/corelib/tools/qtimezone/tst_qtimezone.cpp b/tests/auto/corelib/tools/qtimezone/tst_qtimezone.cpp
index bb6c48a2ed..9904719f7c 100644
--- a/tests/auto/corelib/tools/qtimezone/tst_qtimezone.cpp
+++ b/tests/auto/corelib/tools/qtimezone/tst_qtimezone.cpp
@@ -480,11 +480,10 @@ void tst_QTimeZone::transitionEachZone_data()
         { 1288488600, -4, 8, 2010 } // 2010-10-31 01:30 UTC; Europe, Russia
     };
 
-    QString name;
     const auto zones = QTimeZone::availableTimeZoneIds();
     for (int k = sizeof(table) / sizeof(table[0]); k-- > 0; ) {
         for (const QByteArray &zone : zones) {
-            name.sprintf("%s@%d", zone.constData(), table[k].year);
+            const QString name = QString::asprintf("%s@%d", zone.constData(), table[k].year);
             QTest::newRow(name.toUtf8().constData())
                 << zone
                 << table[k].baseSecs
@@ -916,6 +915,14 @@ void tst_QTimeZone::tzTest()
     QTzTimeZonePrivate tzp("Europe/Berlin");
     QVERIFY(tzp.isValid());
 
+    // Test POSIX-format value for $TZ:
+    QTzTimeZonePrivate tzposix("MET-1METDST-2,M3.5.0/02:00:00,M10.5.0/03:00:00");
+    QVERIFY(tzposix.isValid());
+
+    QTimeZone tzBrazil("BRT+3"); // parts of Northern Brazil, as a POSIX rule
+    QVERIFY(tzBrazil.isValid());
+    QCOMPARE(tzBrazil.offsetFromUtc(QDateTime(QDate(1111, 11, 11).startOfDay())), -10800);
+
     // Test display names by type, either ICU or abbreviation only
     QLocale enUS("en_US");
     // Only test names in debug mode, names used can vary by ICU version installed
diff --git a/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp b/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
index 5737db760c..fff8c75a90 100644
--- a/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
+++ b/tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp
@@ -908,7 +908,6 @@ void tst_QVarLengthArray::initializeListComplex()
 template<typename T>
 void tst_QVarLengthArray::initializeList()
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     T val1(110);
     T val2(105);
     T val3(101);
@@ -945,9 +944,6 @@ void tst_QVarLengthArray::initializeList()
 
     v6 = {}; // assign empty
     QCOMPARE(v6.size(), 0);
-#else
-    QSKIP("This tests requires a compiler that supports initializer lists.");
-#endif
 }
 
 void tst_QVarLengthArray::insertMove()
diff --git a/tests/auto/corelib/tools/qvector/tst_qvector.cpp b/tests/auto/corelib/tools/qvector/tst_qvector.cpp
index a7faeb5ca5..11c255b184 100644
--- a/tests/auto/corelib/tools/qvector/tst_qvector.cpp
+++ b/tests/auto/corelib/tools/qvector/tst_qvector.cpp
@@ -206,6 +206,9 @@ private slots:
     void assignmentInt() const;
     void assignmentMovable() const;
     void assignmentCustom() const;
+    void assignFromInitializerListInt() const;
+    void assignFromInitializerListMovable() const;
+    void assignFromInitializerListCustom() const;
     void addInt() const;
     void addMovable() const;
     void addCustom() const;
@@ -254,7 +257,6 @@ private slots:
     void fromListInt() const;
     void fromListMovable() const;
     void fromListCustom() const;
-    void fromStdVector() const;
     void indexOf() const;
     void insertInt() const;
     void insertMovable() const;
@@ -293,7 +295,10 @@ private slots:
     void swapMovable() const;
     void swapCustom() const;
     void toList() const;
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
+    void fromStdVector() const;
     void toStdVector() const;
+#endif
     void value() const;
 
     void testOperators() const;
@@ -326,10 +331,13 @@ private slots:
 
     void insertMove() const;
 
+    void swapItemsAt() const;
+
 private:
     template<typename T> void copyConstructor() const;
     template<typename T> void add() const;
     template<typename T> void append() const;
+    template<typename T> void assignFromInitializerList() const;
     template<typename T> void capacity() const;
     template<typename T> void clear() const;
     template<typename T> void count() const;
@@ -543,6 +551,40 @@ void tst_QVector::assignmentCustom() const
 }
 
 template<typename T>
+void tst_QVector::assignFromInitializerList() const
+{
+    T val1(SimpleValue<T>::at(1));
+    T val2(SimpleValue<T>::at(2));
+    T val3(SimpleValue<T>::at(3));
+
+    QVector<T> v1 = {val1, val2, val3};
+    QCOMPARE(v1, QVector<T>() << val1 << val2 << val3);
+    QCOMPARE(v1, (QVector<T> {val1, val2, val3}));
+
+    v1 = {};
+    QCOMPARE(v1.size(), 0);
+}
+
+void tst_QVector::assignFromInitializerListInt() const
+{
+    assignFromInitializerList<int>();
+}
+
+void tst_QVector::assignFromInitializerListMovable() const
+{
+    const int instancesCount = Movable::counter.loadAcquire();
+    assignFromInitializerList<Movable>();
+    QCOMPARE(instancesCount, Movable::counter.loadAcquire());
+}
+
+void tst_QVector::assignFromInitializerListCustom() const
+{
+    const int instancesCount = Custom::counter.loadAcquire();
+    assignFromInitializerList<Custom>();
+    QCOMPARE(instancesCount, Custom::counter.loadAcquire());
+}
+
+template<typename T>
 void tst_QVector::add() const
 {
     {
@@ -667,7 +709,6 @@ void tst_QVector::appendCustom() const
 
 void tst_QVector::appendRvalue() const
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     QVector<QString> v;
     v.append("hello");
     QString world = "world";
@@ -675,9 +716,6 @@ void tst_QVector::appendRvalue() const
     QVERIFY(world.isEmpty());
     QCOMPARE(v.front(), QString("hello"));
     QCOMPARE(v.back(),  QString("world"));
-#else
-    QSKIP("This test requires that C++11 move semantics support is enabled in the compiler");
-#endif
 }
 
 void tst_QVector::at() const
@@ -1392,6 +1430,7 @@ void tst_QVector::fromListCustom() const
     QCOMPARE(instancesCount, Custom::counter.loadAcquire());
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
 void tst_QVector::fromStdVector() const
 {
     // stl = :(
@@ -1405,6 +1444,7 @@ void tst_QVector::fromStdVector() const
     // test it converts ok
     QCOMPARE(myvec, QVector<QString>() << "aaa" << "bbb" << "ninjas" << "pirates");
 }
+#endif
 
 void tst_QVector::indexOf() const
 {
@@ -2297,6 +2337,7 @@ void tst_QVector::toList() const
     QCOMPARE(myvec, QVector<QString>() << "A" << "B" << "C");
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
 void tst_QVector::toStdVector() const
 {
     QVector<QString> myvec;
@@ -2309,6 +2350,7 @@ void tst_QVector::toStdVector() const
 
     QCOMPARE(myvec, QVector<QString>() << "A" << "B" << "C");
 }
+#endif
 
 void tst_QVector::value() const
 {
@@ -2515,7 +2557,6 @@ void tst_QVector::reallocAfterCopy()
 template<typename T>
 void tst_QVector::initializeList()
 {
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     T val1(SimpleValue<T>::at(1));
     T val2(SimpleValue<T>::at(2));
     T val3(SimpleValue<T>::at(3));
@@ -2532,7 +2573,6 @@ void tst_QVector::initializeList()
 
     QVector<T> v4({});
     QCOMPARE(v4.size(), 0);
-#endif
 }
 
 void tst_QVector::initializeListInt()
@@ -2952,5 +2992,22 @@ void tst_QVector::insertMove() const
     QCOMPARE(Movable::counter.loadAcquire(), instancesCount);
 }
 
+void tst_QVector::swapItemsAt() const
+{
+    QVector<int> v;
+    v << 0 << 1 << 2 << 3;
+
+    v.swapItemsAt(0, 2);
+    QCOMPARE(v.at(0), 2);
+    QCOMPARE(v.at(2), 0);
+
+    auto copy = v;
+    copy.swapItemsAt(0, 2);
+    QCOMPARE(v.at(0), 2);
+    QCOMPARE(v.at(2), 0);
+    QCOMPARE(copy.at(0), 0);
+    QCOMPARE(copy.at(2), 2);
+}
+
 QTEST_MAIN(tst_QVector)
 #include "tst_qvector.moc"
diff --git a/tests/auto/corelib/tools/qversionnumber/tst_qversionnumber.cpp b/tests/auto/corelib/tools/qversionnumber/tst_qversionnumber.cpp
index 05579dce6e..7c4d1071ce 100644
--- a/tests/auto/corelib/tools/qversionnumber/tst_qversionnumber.cpp
+++ b/tests/auto/corelib/tools/qversionnumber/tst_qversionnumber.cpp
@@ -260,12 +260,10 @@ void tst_QVersionNumber::constructorExplicit()
 
     QCOMPARE(v5.segments(), v6.segments());
 
-#ifdef Q_COMPILER_INITIALIZER_LISTS
     QVersionNumber v7(4, 5, 6);
     QVersionNumber v8 = {4, 5, 6};
 
     QCOMPARE(v7.segments(), v8.segments());
-#endif
 }
 
 void tst_QVersionNumber::constructorCopy_data()
@@ -436,7 +434,7 @@ void tst_QVersionNumber::normalized()
     QFETCH(QVersionNumber, expected);
 
     QCOMPARE(version.normalized(), expected);
-    QCOMPARE(qMove(version).normalized(), expected);
+    QCOMPARE(std::move(version).normalized(), expected);
 }
 
 void tst_QVersionNumber::isNormalized_data()
@@ -586,30 +584,28 @@ void tst_QVersionNumber::serialize()
 
 void tst_QVersionNumber::moveSemantics()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     // QVersionNumber(QVersionNumber &&)
     {
         QVersionNumber v1(1, 2, 3);
-        QVersionNumber v2 = qMove(v1);
+        QVersionNumber v2 = std::move(v1);
         QCOMPARE(v2, QVersionNumber(1, 2, 3));
     }
     // QVersionNumber &operator=(QVersionNumber &&)
     {
         QVersionNumber v1(1, 2, 3);
         QVersionNumber v2;
-        v2 = qMove(v1);
+        v2 = std::move(v1);
         QCOMPARE(v2, QVersionNumber(1, 2, 3));
     }
     // QVersionNumber(QVector<int> &&)
     {
         QVector<int> segments = QVector<int>() << 1 << 2 << 3;
         QVersionNumber v1(segments);
-        QVersionNumber v2(qMove(segments));
+        QVersionNumber v2(std::move(segments));
         QVERIFY(!v1.isNull());
         QVERIFY(!v2.isNull());
         QCOMPARE(v1, v2);
     }
-#endif
 #ifdef Q_COMPILER_REF_QUALIFIERS
     // normalized()
     {
@@ -620,7 +616,7 @@ void tst_QVersionNumber::moveSemantics()
         QVERIFY(!v.isNull());
         QVERIFY(!nv.isNull());
         QVERIFY(nv.isNormalized());
-        nv = qMove(v).normalized();
+        nv = std::move(v).normalized();
         QVERIFY(!nv.isNull());
         QVERIFY(nv.isNormalized());
     }
@@ -632,13 +628,10 @@ void tst_QVersionNumber::moveSemantics()
         segments = v.segments();
         QVERIFY(!v.isNull());
         QVERIFY(!segments.empty());
-        segments = qMove(v).segments();
+        segments = std::move(v).segments();
         QVERIFY(!segments.empty());
     }
 #endif
-#if !defined(Q_COMPILER_RVALUE_REFS) && !defined(Q_COMPILER_REF_QUALIFIERS)
-    QSKIP("This test requires C++11 move semantics support in the compiler.");
-#endif
 }
 
 void tst_QVersionNumber::qtVersion()
diff --git a/tests/auto/corelib/tools/tools.pro b/tests/auto/corelib/tools/tools.pro
index 2a975e67d1..c6da33cce0 100644
--- a/tests/auto/corelib/tools/tools.pro
+++ b/tests/auto/corelib/tools/tools.pro
@@ -46,6 +46,7 @@ SUBDIRS=\
     qringbuffer \
     qscopedpointer \
     qscopedvaluerollback \
+    qscopeguard \
     qset \
     qsharedpointer \
     qsize \
diff --git a/tests/auto/gui/image/qimage/qimage.pro b/tests/auto/gui/image/qimage/qimage.pro
index b40866892e..0593cfbc23 100644
--- a/tests/auto/gui/image/qimage/qimage.pro
+++ b/tests/auto/gui/image/qimage/qimage.pro
@@ -7,7 +7,7 @@ qtConfig(c++11): CONFIG += c++11
 
 android:!android-embedded: RESOURCES += qimage.qrc
 
-win32:!winrt: LIBS += -lgdi32 -luser32
+win32:!winrt: QMAKE_USE += user32 gdi32
 darwin: LIBS += -framework CoreGraphics
 
 TESTDATA += images/*
diff --git a/tests/auto/gui/image/qimage/tst_qimage.cpp b/tests/auto/gui/image/qimage/tst_qimage.cpp
index 4d41b5e873..441ec17412 100644
--- a/tests/auto/gui/image/qimage/tst_qimage.cpp
+++ b/tests/auto/gui/image/qimage/tst_qimage.cpp
@@ -1852,7 +1852,9 @@ void tst_QImage::smoothScale4_data()
     QTest::addColumn<QImage::Format>("format");
 
     QTest::newRow("RGB32") << QImage::Format_RGB32;
+#if QT_CONFIG(raster_64bit)
     QTest::newRow("RGBx64") << QImage::Format_RGBX64;
+#endif
 }
 
 void tst_QImage::smoothScale4()
@@ -3403,7 +3405,7 @@ void tst_QImage::ditherGradient_data()
     QTest::newRow("rgb32 -> rgb666 (dithering)") << rgb32 << QImage::Format_RGB666 << int(Qt::PreferDither | Qt::OrderedDither) << 129;
 
     // Test we get the same results for opaque input in the ARGBPM implementation.
-    rgb32 = qMove(rgb32).convertToFormat(QImage::Format_ARGB32_Premultiplied);
+    rgb32 = std::move(rgb32).convertToFormat(QImage::Format_ARGB32_Premultiplied);
     QTest::newRow("argb32pm -> argb4444pm (no dither)") << rgb32 << QImage::Format_ARGB4444_Premultiplied << 0 << 16;
     QTest::newRow("argb32pm -> rgb444 (dithering)") << rgb32 << QImage::Format_RGB444 << int(Qt::PreferDither | Qt::OrderedDither) << 33;
     QTest::newRow("argb32pm -> argb4444pm (dithering)") << rgb32 << QImage::Format_ARGB4444_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 33;
@@ -3412,6 +3414,7 @@ void tst_QImage::ditherGradient_data()
     QTest::newRow("argb32pm -> argb6666pm (no dither)") << rgb32 << QImage::Format_ARGB6666_Premultiplied << 0 << 64;
     QTest::newRow("argb32pm -> argb6666pm (dithering)") << rgb32 << QImage::Format_ARGB6666_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 129;
 
+#if QT_CONFIG(raster_64bit)
     QImage rgb30(1024, 16, QImage::Format_RGB30);
     QLinearGradient gradient30(QRectF(rgb30.rect()).topLeft(), QRectF(rgb30.rect()).topRight());
     gradient30.setColorAt(0.0, QColor(0, 0, 0));
@@ -3424,6 +3427,7 @@ void tst_QImage::ditherGradient_data()
     QTest::newRow("rgb30 -> rgb32 (dithering)") << rgb30 << QImage::Format_RGB32 << int(Qt::PreferDither | Qt::OrderedDither) << 513;
     QTest::newRow("rgb30 -> rgb888 (no dither)") << rgb30 << QImage::Format_RGB888 << 0 << 256;
     QTest::newRow("rgb30 -> rgb888 (dithering)") << rgb30 << QImage::Format_RGB888 << int(Qt::PreferDither | Qt::OrderedDither) << 513;
+#endif
 }
 
 void tst_QImage::ditherGradient()
diff --git a/tests/auto/gui/image/qpixmap/qpixmap.pro b/tests/auto/gui/image/qpixmap/qpixmap.pro
index e6a020af1a..c9219dad1d 100644
--- a/tests/auto/gui/image/qpixmap/qpixmap.pro
+++ b/tests/auto/gui/image/qpixmap/qpixmap.pro
@@ -5,7 +5,7 @@ QT += core-private gui-private testlib
 qtHaveModule(widgets): QT += widgets widgets-private
 
 SOURCES  += tst_qpixmap.cpp
-win32:!winrt:LIBS += -lgdi32 -luser32
+win32:!winrt: QMAKE_USE += user32 gdi32
 
 RESOURCES += qpixmap.qrc
 TESTDATA += convertFromImage/* convertFromToHICON/* loadFromData/* images/*
diff --git a/tests/auto/gui/itemmodels/qstandarditemmodel/tst_qstandarditemmodel.cpp b/tests/auto/gui/itemmodels/qstandarditemmodel/tst_qstandarditemmodel.cpp
index 550f70890e..bc8bc38da6 100644
--- a/tests/auto/gui/itemmodels/qstandarditemmodel/tst_qstandarditemmodel.cpp
+++ b/tests/auto/gui/itemmodels/qstandarditemmodel/tst_qstandarditemmodel.cpp
@@ -734,7 +734,7 @@ void tst_QStandardItemModel::data()
     currentRoles.clear();
     // bad args
     m_model->setData(QModelIndex(), "bla", Qt::DisplayRole);
-    QCOMPARE(currentRoles, {});
+    QCOMPARE(currentRoles, QVector<int>{});
 
     QIcon icon;
     for (int r=0; r < m_model->rowCount(); ++r) {
@@ -742,9 +742,9 @@ void tst_QStandardItemModel::data()
             m_model->setData(m_model->index(r,c), "initialitem", Qt::DisplayRole);
             QCOMPARE(currentRoles, QVector<int>({Qt::DisplayRole, Qt::EditRole}));
             m_model->setData(m_model->index(r,c), "tooltip", Qt::ToolTipRole);
-            QCOMPARE(currentRoles, {Qt::ToolTipRole});
+            QCOMPARE(currentRoles, QVector<int>{Qt::ToolTipRole});
             m_model->setData(m_model->index(r,c), icon, Qt::DecorationRole);
-            QCOMPARE(currentRoles, {Qt::DecorationRole});
+            QCOMPARE(currentRoles, QVector<int>{Qt::DecorationRole});
         }
     }
 
@@ -761,7 +761,7 @@ void tst_QStandardItemModel::clearItemData()
 {
     currentRoles.clear();
     QVERIFY(!m_model->clearItemData(QModelIndex()));
-    QCOMPARE(currentRoles, {});
+    QCOMPARE(currentRoles, QVector<int>{});
     const QModelIndex idx = m_model->index(0, 0);
     const QMap<int, QVariant> oldData = m_model->itemData(idx);
     m_model->setData(idx, QLatin1String("initialitem"), Qt::DisplayRole);
@@ -773,7 +773,7 @@ void tst_QStandardItemModel::clearItemData()
     QCOMPARE(idx.data(Qt::ToolTipRole), QVariant());
     QCOMPARE(idx.data(Qt::DisplayRole), QVariant());
     QCOMPARE(idx.data(Qt::EditRole), QVariant());
-    QCOMPARE(currentRoles, {});
+    QCOMPARE(currentRoles, QVector<int>{});
     m_model->setItemData(idx, oldData);
     currentRoles.clear();
 }
diff --git a/tests/auto/gui/kernel/noqteventloop/noqteventloop.pro b/tests/auto/gui/kernel/noqteventloop/noqteventloop.pro
index 7e98704aea..293a6a8581 100644
--- a/tests/auto/gui/kernel/noqteventloop/noqteventloop.pro
+++ b/tests/auto/gui/kernel/noqteventloop/noqteventloop.pro
@@ -5,4 +5,4 @@ QT += core-private network gui-private testlib
 
 SOURCES  += tst_noqteventloop.cpp
 
-qtConfig(dynamicgl):win32:!winrt: LIBS += -luser32
+qtConfig(dynamicgl):win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp b/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
index a304981cd1..09fec89de4 100644
--- a/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
+++ b/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
@@ -989,9 +989,13 @@ void tst_QGuiApplication::genericPluginsAndWindowSystemEvents()
     QCoreApplication::postEvent(&testReceiver, new QEvent(QEvent::User));
     QCOMPARE(testReceiver.customEvents, 0);
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    QStaticPlugin testPluginInfo(qt_plugin_instance, qt_plugin_query_metadata);
+#else
     QStaticPlugin testPluginInfo;
     testPluginInfo.instance = qt_plugin_instance;
     testPluginInfo.rawMetaData = qt_plugin_query_metadata;
+#endif
     qRegisterStaticPluginFunction(testPluginInfo);
     int argc = 3;
     char *argv[] = { const_cast<char*>(QTest::currentAppName()), const_cast<char*>("-plugin"), const_cast<char*>("testplugin") };
diff --git a/tests/auto/gui/kernel/qkeyevent/tst_qkeyevent.cpp b/tests/auto/gui/kernel/qkeyevent/tst_qkeyevent.cpp
index bad021c3b0..9a4c560a08 100644
--- a/tests/auto/gui/kernel/qkeyevent/tst_qkeyevent.cpp
+++ b/tests/auto/gui/kernel/qkeyevent/tst_qkeyevent.cpp
@@ -121,7 +121,7 @@ static QByteArray modifiersTestRowName(const QString &keySequence)
         if (uc > 32 && uc < 128)
             str << '"' << c << '"';
         else
-            str << "U+" << hex << uc << dec;
+            str << "U+" << Qt::hex << uc << Qt::dec;
         if (i < size - 1)
             str << ',';
     }
diff --git a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
index 7f29b1c24e..6ce6422f48 100644
--- a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
+++ b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
@@ -141,21 +141,20 @@ void tst_QPalette::copySemantics()
 
 void tst_QPalette::moveSemantics()
 {
-#ifdef Q_COMPILER_RVALUE_REFS
     QPalette src(Qt::red), dst;
     const QPalette control = src;
     QVERIFY(src != dst);
     QCOMPARE(src, control);
     QVERIFY(!dst.isCopyOf(src));
     QVERIFY(!dst.isCopyOf(control));
-    dst = qMove(src); // move assignment
+    dst = std::move(src); // move assignment
     QVERIFY(!dst.isCopyOf(src)); // isCopyOf() works on moved-from palettes, too
     QVERIFY(dst.isCopyOf(control));
     QCOMPARE(dst, control);
     src = control; // check moved-from 'src' can still be assigned to (doesn't crash)
     QVERIFY(src.isCopyOf(dst));
     QVERIFY(src.isCopyOf(control));
-    QPalette dst2(qMove(src)); // move construction
+    QPalette dst2(std::move(src)); // move construction
     QVERIFY(!src.isCopyOf(dst));
     QVERIFY(!src.isCopyOf(dst2));
     QVERIFY(!src.isCopyOf(control));
@@ -163,9 +162,6 @@ void tst_QPalette::moveSemantics()
     QVERIFY(dst2.isCopyOf(dst));
     QVERIFY(dst2.isCopyOf(control));
     // check moved-from 'src' can still be destroyed (doesn't crash)
-#else
-    QSKIP("Compiler doesn't support C++11 move semantics");
-#endif
 }
 
 void tst_QPalette::setBrush()
diff --git a/tests/auto/gui/kernel/qwindow/qwindow.pro b/tests/auto/gui/kernel/qwindow/qwindow.pro
index 844b3e8507..e7931ca773 100644
--- a/tests/auto/gui/kernel/qwindow/qwindow.pro
+++ b/tests/auto/gui/kernel/qwindow/qwindow.pro
@@ -5,4 +5,4 @@ QT += core-private gui-private testlib
 
 SOURCES  += tst_qwindow.cpp
 
-qtConfig(dynamicgl):win32:!winrt: LIBS += -luser32
+qtConfig(dynamicgl):win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/gui/painting/painting.pro b/tests/auto/gui/painting/painting.pro
index 831fffab30..26e84c1b15 100644
--- a/tests/auto/gui/painting/painting.pro
+++ b/tests/auto/gui/painting/painting.pro
@@ -3,6 +3,7 @@ SUBDIRS=\
    qpainterpath \
    qpainterpathstroker \
    qcolor \
+   qcolorspace \
    qbrush \
    qregion \
    qpagelayout \
diff --git a/tests/auto/gui/painting/qcolor/tst_qcolor.cpp b/tests/auto/gui/painting/qcolor/tst_qcolor.cpp
index 17289e0b85..4d92bdd382 100644
--- a/tests/auto/gui/painting/qcolor/tst_qcolor.cpp
+++ b/tests/auto/gui/painting/qcolor/tst_qcolor.cpp
@@ -33,7 +33,7 @@
 
 #include <qcolor.h>
 #include <qdebug.h>
-#include <private/qcolorprofile_p.h>
+#include <private/qcolortrclut_p.h>
 #include <private/qdrawingprimitive_sse2_p.h>
 #include <qrgba64.h>
 
@@ -70,6 +70,7 @@ private slots:
     void setBlue();
 
     void setRgb();
+    void setRgbF();
     void setRgba();
     void setHsv();
     void setCmyk();
@@ -187,28 +188,28 @@ void tst_QColor::getSetCheck()
     // void QColor::setRedF(qreal)
     obj1.setRedF(0.0);
     QCOMPARE(obj1.redF(), qreal(0.0));
-    obj1.setRedF(-0.2);
-    QCOMPARE(obj1.redF(), qreal(0.0)); // range<0.0, 1.0
-    obj1.setRedF(1.1);
-    QCOMPARE(obj1.redF(), qreal(1.0)); // range<0.0, 1.0
+    obj1.setRedF(-0.25);
+    QCOMPARE(obj1.redF(), qreal(-0.25));
+    obj1.setRedF(1.25);
+    QCOMPARE(obj1.redF(), qreal(1.25));
 
     // qreal QColor::greenF()
     // void QColor::setGreenF(qreal)
     obj1.setGreenF(0.0);
     QCOMPARE(obj1.greenF(), qreal(0.0));
-    obj1.setGreenF(-0.2);
-    QCOMPARE(obj1.greenF(), qreal(0.0)); // range<0.0, 1.0
-    obj1.setGreenF(1.1);
-    QCOMPARE(obj1.greenF(), qreal(1.0)); // range<0.0, 1.0
+    obj1.setGreenF(-0.25);
+    QCOMPARE(obj1.greenF(), qreal(-0.25));
+    obj1.setGreenF(1.5);
+    QCOMPARE(obj1.greenF(), qreal(1.5));
 
     // qreal QColor::blueF()
     // void QColor::setBlueF(qreal)
     obj1.setBlueF(0.0);
     QCOMPARE(obj1.blueF(), qreal(0.0));
-    obj1.setBlueF(-0.2);
-    QCOMPARE(obj1.blueF(), qreal(0.0)); // range<0.0, 1.0
-    obj1.setBlueF(1.1);
-    QCOMPARE(obj1.blueF(), qreal(1.0)); // range<0.0, 1.0
+    obj1.setBlueF(-0.5);
+    QCOMPARE(obj1.blueF(), qreal(-0.5));
+    obj1.setBlueF(2.0);
+    QCOMPARE(obj1.blueF(), qreal(2.0));
 
     // QRgb QColor::rgba()
     // void QColor::setRgba(QRgb)
@@ -677,30 +678,81 @@ void tst_QColor::setRgb()
 {
     QColor color;
 
-    for (int A = 0; A <= USHRT_MAX; ++A) {
-        {
-            // 0-255
-            int a = A >> 8;
-            QRgb rgb = qRgba(0, 0, 0, a);
+    for (int a = 0; a <= 255; ++a) {
+        QRgb rgb = qRgba(0, 0, 0, a);
 
-            color.setRgb(0, 0, 0, a);
-            QCOMPARE(color.alpha(), a);
-            QCOMPARE(color.rgb(),  qRgb(0, 0, 0));
+        color.setRgb(0, 0, 0, a);
+        QCOMPARE(color.alpha(), a);
+        QCOMPARE(color.rgb(),  qRgb(0, 0, 0));
 
-            color.setRgb(rgb);
-            QCOMPARE(color.alpha(), 255);
-            QCOMPARE(color.rgb(),   qRgb(0, 0, 0));
+        color.setRgb(rgb);
+        QCOMPARE(color.alpha(), 255);
+        QCOMPARE(color.rgb(),   qRgb(0, 0, 0));
 
-            int r, g, b, a2;
-            color.setRgb(0, 0, 0, a);
-            color.getRgb(&r, &g, &b, &a2);
-            QCOMPARE(a2, a);
+        int r, g, b, a2;
+        color.setRgb(0, 0, 0, a);
+        color.getRgb(&r, &g, &b, &a2);
+        QCOMPARE(a2, a);
 
-            QColor c(0, 0, 0);
-            c.setAlpha(a);
-            QCOMPARE(c.alpha(), a);
-        }
+        QColor c(0, 0, 0);
+        c.setAlpha(a);
+        QCOMPARE(c.alpha(), a);
+    }
 
+    for (int r = 0; r <= 255; ++r) {
+        QRgb rgb = qRgb(r, 0, 0);
+
+        color.setRgb(r, 0, 0);
+        QCOMPARE(color.red(), r);
+        QCOMPARE(color.rgb(), rgb);
+
+        color.setRgb(rgb);
+        QCOMPARE(color.red(), r);
+        QCOMPARE(color.rgb(), rgb);
+
+        int r2, g, b, a;
+        color.getRgb(&r2, &g, &b, &a);
+        QCOMPARE(r2, r);
+    }
+
+    for (int g = 0; g <= 255; ++g) {
+        QRgb rgb = qRgb(0, g, 0);
+
+        color.setRgb(0, g, 0);
+        QCOMPARE(color.green(), g);
+        QCOMPARE(color.rgb(),   rgb);
+
+        color.setRgb(rgb);
+        QCOMPARE(color.green(), g);
+        QCOMPARE(color.rgb(),   rgb);
+
+        int r, g2, b, a;
+        color.getRgb(&r, &g2, &b, &a);
+        QCOMPARE(g2, g);
+    }
+
+    for (int b = 0; b <= 255; ++b) {
+        QRgb rgb = qRgb(0, 0, b);
+
+        color.setRgb(0, 0, b);
+        QCOMPARE(color.blue(),  b);
+        QCOMPARE(color.rgb(),   rgb);
+
+        color.setRgb(rgb);
+        QCOMPARE(color.blue(),  b);
+        QCOMPARE(color.rgb(),   rgb);
+
+        int r, g, b2, a;
+        color.getRgb(&r, &g, &b2, &a);
+        QCOMPARE(b2, b);
+    }
+}
+
+void tst_QColor::setRgbF()
+{
+    QColor color;
+
+    for (int A = 0; A <= USHRT_MAX; ++A) {
         {
             // 0.0-1.0
             qreal a = A / qreal(USHRT_MAX);
@@ -720,24 +772,6 @@ void tst_QColor::setRgb()
 
     for (int R = 0; R <= USHRT_MAX; ++R) {
         {
-            // 0-255
-            int r = R >> 8;
-            QRgb rgb = qRgb(r, 0, 0);
-
-            color.setRgb(r, 0, 0);
-            QCOMPARE(color.red(), r);
-            QCOMPARE(color.rgb(), rgb);
-
-            color.setRgb(rgb);
-            QCOMPARE(color.red(), r);
-            QCOMPARE(color.rgb(), rgb);
-
-            int r2, g, b, a;
-            color.getRgb(&r2, &g, &b, &a);
-            QCOMPARE(r2, r);
-        }
-
-        {
             // 0.0-1.0
             qreal r = R / qreal(USHRT_MAX);
             color.setRgbF(r, 0.0, 0.0);
@@ -751,24 +785,6 @@ void tst_QColor::setRgb()
 
     for (int G = 0; G <= USHRT_MAX; ++G) {
         {
-            // 0-255
-            int g = G >> 8;
-            QRgb rgb = qRgb(0, g, 0);
-
-            color.setRgb(0, g, 0);
-            QCOMPARE(color.green(), g);
-            QCOMPARE(color.rgb(),   rgb);
-
-            color.setRgb(rgb);
-            QCOMPARE(color.green(), g);
-            QCOMPARE(color.rgb(),   rgb);
-
-            int r, g2, b, a;
-            color.getRgb(&r, &g2, &b, &a);
-            QCOMPARE(g2, g);
-        }
-
-        {
             // 0.0-1.0
             qreal g = G / qreal(USHRT_MAX);
             color.setRgbF(0.0, g, 0.0);
@@ -782,32 +798,53 @@ void tst_QColor::setRgb()
 
     for (int B = 0; B <= USHRT_MAX; ++B) {
         {
-            // 0-255
-            int b = B >> 8;
-            QRgb rgb = qRgb(0, 0, b);
+            // 0.0-1.0
+            qreal b = B / qreal(USHRT_MAX);
+            color.setRgbF(0.0, 0.0, b);
+            QCOMPARE(color.blueF(), b);
 
-            color.setRgb(0, 0, b);
-            QCOMPARE(color.blue(),  b);
-            QCOMPARE(color.rgb(),   rgb);
+            qreal r, g, b2, a;
+            color.getRgbF(&r, &g, &b2, &a);
+            QCOMPARE(b2, b);
+        }
+    }
 
-            color.setRgb(rgb);
-            QCOMPARE(color.blue(),  b);
-            QCOMPARE(color.rgb(),   rgb);
+    for (int R = -128; R <= 512; ++R) {
+        {
+            // extended RGB
+            qreal r = R / qreal(256);
+            color.setRgbF(r, 0.0, 0.0);
+            QCOMPARE(qfloat16(color.redF()), qfloat16(r));
 
-            int r, g, b2, a;
-            color.getRgb(&r, &g, &b2, &a);
-            QCOMPARE(b2, b);
+            qreal r2, g, b, a;
+            color.getRgbF(&r2, &g, &b, &a);
+            QCOMPARE(qfloat16(r2), qfloat16(r));
         }
+    }
 
+    for (int G = -128; G <= 512; ++G) {
         {
-            // 0.0-1.0
-            qreal b = B / qreal(USHRT_MAX);
+            // extended RGB
+            qreal g = G / qreal(256);
+            color.setRgbF(0.0, g, 0.0);
+            QCOMPARE(qfloat16(color.greenF()), qfloat16(g));
+
+            qreal r, g2, b, a;
+            color.getRgbF(&r, &g2, &b, &a);
+            QCOMPARE(qfloat16(g2), qfloat16(g));
+        }
+    }
+
+    for (int B = -128; B <= 512; ++B) {
+        {
+            // extended RGB
+            qreal b = B / qreal(256);
             color.setRgbF(0.0, 0.0, b);
-            QCOMPARE(color.blueF(), b);
+            QCOMPARE(qfloat16(color.blueF()), qfloat16(b));
 
             qreal r, g, b2, a;
             color.getRgbF(&r, &g, &b2, &a);
-            QCOMPARE(b2, b);
+            QCOMPARE(qfloat16(b2), qfloat16(b));
         }
     }
 }
@@ -1632,14 +1669,13 @@ void tst_QColor::qcolorprofile_data()
     QTest::newRow("gamma=1.7") << qreal(1.7) << 2;
     QTest::newRow("gamma=2.0") << qreal(2.0) << 8;
     QTest::newRow("gamma=2.31") << qreal(2.31) << 33;
-    QTest::newRow("SRgb") << qreal(0.0) << 7;
 }
 
 void tst_QColor::qcolorprofile()
 {
     QFETCH(qreal, gammaC);
     QFETCH(int, tolerance);
-    QColorProfile *cp = (gammaC == 0) ? QColorProfile::fromSRgb(): QColorProfile::fromGamma(gammaC);
+    QColorTrcLut *cp = QColorTrcLut::fromGamma(gammaC);
 
     // Test we are accurate for most values after converting through gamma-correction.
     int error = 0;
diff --git a/tests/auto/gui/painting/qcolorspace/qcolorspace.pro b/tests/auto/gui/painting/qcolorspace/qcolorspace.pro
new file mode 100644
index 0000000000..14bd699bf7
--- /dev/null
+++ b/tests/auto/gui/painting/qcolorspace/qcolorspace.pro
@@ -0,0 +1,9 @@
+CONFIG += testcase
+QT += testlib gui-private core-private
+
+TARGET = tst_qcolorspace
+SOURCES  += tst_qcolorspace.cpp
+
+RESOURCES += $$files(resources/*)
+
+TESTDATA += resources/*
diff --git a/tests/auto/gui/painting/qcolorspace/resources/ProPhoto.jpg b/tests/auto/gui/painting/qcolorspace/resources/ProPhoto.jpg
new file mode 100644
index 0000000000..481d35ca8e
--- /dev/null
+++ b/tests/auto/gui/painting/qcolorspace/resources/ProPhoto.jpg
diff --git a/tests/auto/gui/painting/qcolorspace/resources/sRGB2014.icc b/tests/auto/gui/painting/qcolorspace/resources/sRGB2014.icc
new file mode 100644
index 0000000000..49afbfef10
--- /dev/null
+++ b/tests/auto/gui/painting/qcolorspace/resources/sRGB2014.icc
diff --git a/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
new file mode 100644
index 0000000000..7a88eb18b2
--- /dev/null
+++ b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
@@ -0,0 +1,361 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+
+#include <qcolorspace.h>
+#include <qimage.h>
+#include <qimagereader.h>
+
+#include <private/qcolorspace_p.h>
+
+Q_DECLARE_METATYPE(QColorSpace::ColorSpaceId)
+Q_DECLARE_METATYPE(QColorSpace::Gamut)
+Q_DECLARE_METATYPE(QColorSpace::TransferFunction)
+
+class tst_QColorSpace : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QColorSpace();
+
+private slots:
+    void namedColorSpaces_data();
+    void namedColorSpaces();
+
+    void toIccProfile_data();
+    void toIccProfile();
+
+    void fromIccProfile();
+
+    void imageConversion_data();
+    void imageConversion();
+
+    void loadImage();
+
+    void gamut();
+    void primariesXyz();
+    void primaries2_data();
+    void primaries2();
+    void invalidPrimaries();
+};
+
+tst_QColorSpace::tst_QColorSpace()
+{ }
+
+
+void tst_QColorSpace::namedColorSpaces_data()
+{
+    QTest::addColumn<QColorSpace::ColorSpaceId>("colorSpaceId");
+    QTest::addColumn<QColorSpace::Gamut>("gamutId");
+    QTest::addColumn<QColorSpace::TransferFunction>("transferFunctionId");
+
+    QTest::newRow("sRGB") << QColorSpace::SRgb
+                          << QColorSpace::Gamut::SRgb
+                          << QColorSpace::TransferFunction::SRgb;
+    QTest::newRow("sRGB Linear") << QColorSpace::SRgbLinear
+                                 << QColorSpace::Gamut::SRgb
+                                 << QColorSpace::TransferFunction::Linear;
+    QTest::newRow("Adobe RGB") << QColorSpace::AdobeRgb
+                               << QColorSpace::Gamut::AdobeRgb
+                               << QColorSpace::TransferFunction::Gamma;
+    QTest::newRow("Display-P3") << QColorSpace::DisplayP3
+                                << QColorSpace::Gamut::DciP3D65
+                                << QColorSpace::TransferFunction::SRgb;
+    QTest::newRow("ProPhoto RGB") << QColorSpace::ProPhotoRgb
+                                  << QColorSpace::Gamut::ProPhotoRgb
+                                  << QColorSpace::TransferFunction::ProPhotoRgb;
+    QTest::newRow("BT.2020") << QColorSpace::Bt2020
+                             << QColorSpace::Gamut::Bt2020
+                             << QColorSpace::TransferFunction::Bt2020;
+}
+
+void tst_QColorSpace::namedColorSpaces()
+{
+    QFETCH(QColorSpace::ColorSpaceId, colorSpaceId);
+    QFETCH(QColorSpace::Gamut, gamutId);
+    QFETCH(QColorSpace::TransferFunction, transferFunctionId);
+
+    QColorSpace colorSpace = colorSpaceId;
+
+    QVERIFY(colorSpace.isValid());
+
+    QCOMPARE(colorSpace.colorSpaceId(), colorSpaceId);
+    QCOMPARE(colorSpace.gamut(), gamutId);
+    QCOMPARE(colorSpace.transferFunction(), transferFunctionId);
+}
+
+
+void tst_QColorSpace::toIccProfile_data()
+{
+    namedColorSpaces_data();
+}
+
+void tst_QColorSpace::toIccProfile()
+{
+    QFETCH(QColorSpace::ColorSpaceId, colorSpaceId);
+    QFETCH(QColorSpace::Gamut, gamutId);
+    QFETCH(QColorSpace::TransferFunction, transferFunctionId);
+
+    Q_UNUSED(gamutId);
+    Q_UNUSED(transferFunctionId);
+
+    QColorSpace colorSpace = colorSpaceId;
+    QByteArray iccProfile = colorSpace.iccProfile();
+    QVERIFY(!iccProfile.isEmpty());
+
+    QColorSpace colorSpace2 = QColorSpace::fromIccProfile(iccProfile);
+    QVERIFY(colorSpace2.isValid());
+
+    QCOMPARE(colorSpace2, colorSpace);
+
+    QByteArray iccProfile2 = colorSpace2.iccProfile();
+    QVERIFY(!iccProfile2.isEmpty());
+
+    QCOMPARE(iccProfile2, iccProfile);
+}
+
+void tst_QColorSpace::fromIccProfile()
+{
+    // Read the official sRGB ICCv2 profile:
+    QString prefix = QFINDTESTDATA("resources/");
+    QFile file(prefix + "sRGB2014.icc");
+    file.open(QIODevice::ReadOnly);
+    QByteArray iccProfile = file.readAll();
+    QColorSpace stdSRgb = QColorSpace::fromIccProfile(iccProfile);
+    QVERIFY(stdSRgb.isValid());
+
+    QCOMPARE(stdSRgb.gamut(), QColorSpace::Gamut::SRgb);
+    QCOMPARE(stdSRgb.transferFunction(), QColorSpace::TransferFunction::SRgb);
+    QCOMPARE(stdSRgb.colorSpaceId(), QColorSpace::SRgb);
+
+    QCOMPARE(stdSRgb, QColorSpace(QColorSpace::SRgb));
+}
+
+void tst_QColorSpace::imageConversion_data()
+{
+    QTest::addColumn<QColorSpace::ColorSpaceId>("fromColorSpace");
+    QTest::addColumn<QColorSpace::ColorSpaceId>("toColorSpace");
+    QTest::addColumn<int>("tolerance");
+
+    QTest::newRow("sRGB -> Display-P3") << QColorSpace::SRgb << QColorSpace::DisplayP3 << 0;
+    QTest::newRow("sRGB -> Adobe RGB") << QColorSpace::SRgb << QColorSpace::AdobeRgb << 2;
+    QTest::newRow("Display-P3 -> sRGB") << QColorSpace::DisplayP3 << QColorSpace::SRgb << 0;
+    QTest::newRow("Adobe RGB -> sRGB") << QColorSpace::AdobeRgb << QColorSpace::SRgb << 2;
+    QTest::newRow("Display-P3 -> Adobe RGB") << QColorSpace::DisplayP3 << QColorSpace::AdobeRgb << 2;
+    QTest::newRow("Display-P3 -> BT.2020") << QColorSpace::DisplayP3 << QColorSpace::Bt2020 << 4;
+    QTest::newRow("sRGB -> sRGB Linear") << QColorSpace::SRgb << QColorSpace::SRgbLinear << 0;
+}
+
+void tst_QColorSpace::imageConversion()
+{
+    QFETCH(QColorSpace::ColorSpaceId, fromColorSpace);
+    QFETCH(QColorSpace::ColorSpaceId, toColorSpace);
+    QFETCH(int, tolerance);
+
+    QImage testImage(256, 1, QImage::Format_RGB32);
+
+    for (int i = 0; i < 256; ++i)
+        testImage.setPixel(i, 0, qRgb(i, i, i));
+
+    testImage.setColorSpace(fromColorSpace);
+    QCOMPARE(testImage.colorSpace(), QColorSpace(fromColorSpace));
+
+    testImage.convertToColorSpace(toColorSpace);
+    QCOMPARE(testImage.colorSpace(), QColorSpace(toColorSpace));
+
+    int lastRed = 0;
+    int lastGreen = 0;
+    int lastBlue = 0;
+    for (int i = 0; i < 256; ++i) {
+        QRgb p = testImage.pixel(i, 0);
+        QVERIFY(qRed(p) >= lastRed);
+        QVERIFY(qGreen(p) >= lastGreen);
+        QVERIFY(qBlue(p) >= lastBlue);
+        lastRed = qRed(p);
+        lastGreen = qGreen(p);
+        lastBlue = qBlue(p);
+    }
+
+    lastRed = 0;
+    lastGreen = 0;
+    lastBlue = 0;
+    testImage.convertToColorSpace(fromColorSpace);
+    QCOMPARE(testImage.colorSpace(), QColorSpace(fromColorSpace));
+    for (int i = 0; i < 256; ++i) {
+        QRgb p = testImage.pixel(i, 0);
+        QVERIFY(qAbs(qRed(p) - qGreen(p)) <= tolerance);
+        QVERIFY(qAbs(qRed(p) - qBlue(p)) <= tolerance);
+        QVERIFY((lastRed   - qRed(p))   <= (tolerance / 2));
+        QVERIFY((lastGreen - qGreen(p)) <= (tolerance / 2));
+        QVERIFY((lastBlue  - qBlue(p))  <= (tolerance / 2));
+        lastRed = qRed(p);
+        lastGreen = qGreen(p);
+        lastBlue = qBlue(p);
+    }
+}
+
+
+void tst_QColorSpace::loadImage()
+{
+    QString prefix = QFINDTESTDATA("resources/");
+    QImageReader reader(prefix + "ProPhoto.jpg");
+    QImage image = reader.read();
+
+    QVERIFY(!image.isNull());
+    QVERIFY(image.colorSpace().isValid());
+    QCOMPARE(image.colorSpace().colorSpaceId(), QColorSpace::ProPhotoRgb);
+    QVERIFY(!image.colorSpace().iccProfile().isEmpty());
+
+    QColorSpace defaultProPhotoRgb = QColorSpace::ProPhotoRgb;
+    QVERIFY(!defaultProPhotoRgb.iccProfile().isEmpty());
+
+    // Test the iccProfile getter returns the ICC profile from the image
+    // which since we didn't write it, isn't identical to our defaults.
+    QVERIFY(defaultProPhotoRgb.iccProfile() != image.colorSpace().iccProfile());
+
+    QColorTransform transform = image.colorSpace().transformationToColorSpace(QColorSpace::SRgb);
+    qreal maxRed = 0;
+    qreal maxBlue = 0;
+    qreal maxRed2 = 0;
+    qreal maxBlue2 = 0;
+    for (int y = 0; y < image.height(); ++y) {
+        for (int x = 0; x < image.width(); ++x) {
+            QColor p = image.pixelColor(x, y);
+            maxRed = std::max(maxRed, p.redF());
+            maxBlue = std::max(maxBlue, p.blueF());
+            p = transform.map(p);
+            maxRed2 = std::max(maxRed2, p.redF());
+            maxBlue2 = std::max(maxBlue2, p.blueF());
+
+        }
+    }
+    // ProPhotoRgb can be a lot more red and blue than SRgb can, so it will have lower values.
+    QVERIFY(maxRed2 > maxRed);
+    QVERIFY(maxBlue2 > maxBlue);
+}
+
+void tst_QColorSpace::gamut()
+{
+    QColor black = QColor::fromRgbF(0.0, 0.0, 0.0);
+    QColor white = QColor::fromRgbF(1.0, 1.0, 1.0);
+    QColor red = QColor::fromRgbF(1.0, 0.0, 0.0);
+    QColor green = QColor::fromRgbF(0.0, 1.0, 0.0);
+    QColor blue = QColor::fromRgbF(0.0, 0.0, 1.0);
+
+    QColorTransform toAdobeRgb = QColorSpace(QColorSpace::SRgb).transformationToColorSpace(QColorSpace::AdobeRgb);
+
+    QColor tblack = toAdobeRgb.map(black);
+    QColor twhite = toAdobeRgb.map(white);
+    QColor tred = toAdobeRgb.map(red);
+    QColor tgreen = toAdobeRgb.map(green);
+    QColor tblue = toAdobeRgb.map(blue);
+
+    // Black is black
+    QCOMPARE(tblack, black);
+
+    // This white hasn't changed
+    QCOMPARE(twhite, white);
+
+    // Adobe's red and blue gamut corners are the same as sRGB's
+    // So, a color in the red corner, will stay in the red corner
+    // the same for blue, but not for green.
+    QVERIFY(tred.greenF() < 0.001);
+    QVERIFY(tred.blueF() < 0.001);
+    QVERIFY(tblue.redF() < 0.001);
+    QVERIFY(tblue.greenF() < 0.001);
+    QVERIFY(tgreen.redF() > 0.2);
+    QVERIFY(tgreen.blueF() > 0.2);
+}
+
+void tst_QColorSpace::primariesXyz()
+{
+    QColorSpace sRgb = QColorSpace::SRgb;
+    QColorSpace adobeRgb = QColorSpace::AdobeRgb;
+    QColorSpace displayP3 = QColorSpace::DisplayP3;
+    QColorSpace proPhotoRgb = QColorSpace::ProPhotoRgb;
+    QColorSpace bt2020 = QColorSpace::Bt2020;
+
+    // Check if our calculated matrices, match the precalculated ones.
+    QCOMPARE(sRgb.d_func()->toXyz, QColorMatrix::toXyzFromSRgb());
+    QCOMPARE(adobeRgb.d_func()->toXyz, QColorMatrix::toXyzFromAdobeRgb());
+    QCOMPARE(displayP3.d_func()->toXyz, QColorMatrix::toXyzFromDciP3D65());
+    QCOMPARE(proPhotoRgb.d_func()->toXyz, QColorMatrix::toXyzFromProPhotoRgb());
+    QCOMPARE(bt2020.d_func()->toXyz, QColorMatrix::toXyzFromBt2020());
+}
+
+void tst_QColorSpace::primaries2_data()
+{
+    QTest::addColumn<QColorSpace::Gamut>("gamut");
+
+    QTest::newRow("sRGB") << QColorSpace::Gamut::SRgb;
+    QTest::newRow("DCI-P3 (D65)") << QColorSpace::Gamut::DciP3D65;
+    QTest::newRow("Adobe RGB (1998)") << QColorSpace::Gamut::AdobeRgb;
+    QTest::newRow("ProPhoto RGB") << QColorSpace::Gamut::ProPhotoRgb;
+    QTest::newRow("BT.2020") << QColorSpace::Gamut::Bt2020;
+}
+
+void tst_QColorSpace::primaries2()
+{
+    QFETCH(QColorSpace::Gamut, gamut);
+    QColorSpacePrimaries primaries(gamut);
+
+    QColorSpace original(gamut,  QColorSpace::TransferFunction::Linear);
+    QColorSpace custom1(primaries.whitePoint, primaries.redPoint,
+                        primaries.greenPoint, primaries.bluePoint, QColorSpace::TransferFunction::Linear);
+    QCOMPARE(original, custom1);
+
+    // A custom color swizzled color-space:
+    QColorSpace custom2(primaries.whitePoint, primaries.bluePoint,
+                        primaries.greenPoint, primaries.redPoint, QColorSpace::TransferFunction::Linear);
+
+    QVERIFY(custom1 != custom2);
+    QColor color1(255, 127, 63);
+    QColor color2 = custom1.transformationToColorSpace(custom2).map(color1);
+    QCOMPARE(color2.red(),   color1.blue());
+    QCOMPARE(color2.green(), color1.green());
+    QCOMPARE(color2.blue(),  color1.red());
+    QCOMPARE(color2.alpha(), color1.alpha());
+    QColor color3 = custom2.transformationToColorSpace(custom1).map(color2);
+    QCOMPARE(color3.red(),   color1.red());
+    QCOMPARE(color3.green(), color1.green());
+    QCOMPARE(color3.blue(),  color1.blue());
+    QCOMPARE(color3.alpha(), color1.alpha());
+}
+
+void tst_QColorSpace::invalidPrimaries()
+{
+    QColorSpace custom(QPointF(), QPointF(), QPointF(), QPointF(), QColorSpace::TransferFunction::Linear);
+    QVERIFY(!custom.isValid());
+    QCOMPARE(custom.colorSpaceId(), QColorSpace::Undefined);
+}
+
+QTEST_MAIN(tst_QColorSpace)
+#include "tst_qcolorspace.moc"
diff --git a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
index bc0baed15c..cec164b8b2 100644
--- a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
+++ b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
@@ -185,10 +185,12 @@ private slots:
     void gradientPixelFormat_data();
     void gradientPixelFormat();
 
+#if QT_CONFIG(raster_64bit)
     void linearGradientRgb30_data();
     void linearGradientRgb30();
     void radialGradientRgb30_data();
     void radialGradientRgb30();
+#endif
 
     void fpe_pixmapTransform();
     void fpe_zeroLengthLines();
@@ -3946,6 +3948,7 @@ void tst_QPainter::gradientInterpolation()
     }
 }
 
+#if QT_CONFIG(raster_64bit)
 void tst_QPainter::linearGradientRgb30_data()
 {
     QTest::addColumn<QColor>("stop0");
@@ -4004,6 +4007,7 @@ void tst_QPainter::radialGradientRgb30()
         QVERIFY(qGray(p1.rgb()) >= qGray(p2.rgb()));
     }
 }
+#endif
 
 void tst_QPainter::drawPolygon()
 {
@@ -4884,14 +4888,18 @@ void tst_QPainter::blendARGBonRGB_data()
                                      << QPainter::CompositionMode_SourceOver << qRgba(255, 0, 0, 85) << 85;
     QTest::newRow("ARGB_PM over RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32_Premultiplied
                                         << QPainter::CompositionMode_SourceOver << qRgba(85, 0, 0, 85) << 85;
+#if QT_CONFIG(raster_64bit)
     QTest::newRow("ARGB source RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32
                                        << QPainter::CompositionMode_Source << qRgba(255, 0, 0, 85) << 85;
     QTest::newRow("ARGB source RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32
                                        << QPainter::CompositionMode_Source << qRgba(255, 0, 0, 120) << 85;
+#endif
     QTest::newRow("ARGB_PM source RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32_Premultiplied
                                           << QPainter::CompositionMode_Source << qRgba(85, 0, 0, 85) << 85;
+#if QT_CONFIG(raster_64bit)
     QTest::newRow("ARGB_PM source RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32_Premultiplied
                                           << QPainter::CompositionMode_Source << qRgba(180, 0, 0, 180) << 170;
+#endif
     QTest::newRow("ARGB source-in RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32
                                           << QPainter::CompositionMode_SourceIn << qRgba(255, 0, 0, 85) << 85;
     QTest::newRow("ARGB_PM source-in RGB30") << QImage::Format_RGB30 << QImage::Format_ARGB32_Premultiplied
diff --git a/tests/auto/gui/painting/qpen/tst_qpen.cpp b/tests/auto/gui/painting/qpen/tst_qpen.cpp
index ef65d653ce..295ae27d17 100644
--- a/tests/auto/gui/painting/qpen/tst_qpen.cpp
+++ b/tests/auto/gui/painting/qpen/tst_qpen.cpp
@@ -95,7 +95,7 @@ void tst_QPen::move()
     QPen p1(Qt::black);
 
     // check that moving does the right thing:
-    QPen p2 = qMove(p1); // could be move or copy construction, so don't check p1's state
+    QPen p2 = std::move(p1); // could be move or copy construction, so don't check p1's state
     QCOMPARE(p2.color(), QColor(Qt::black));
 
     // this, executed ehre, would crash:
@@ -110,7 +110,7 @@ void tst_QPen::move()
     QCOMPARE(p1.color(), QColor(Qt::yellow));
 
     // check that moved-from QPens p2, p3 can still be safely destroyed:
-    QPen p5 = qMove(p2);
+    QPen p5 = std::move(p2);
 
     // intentionally no more statements beyond this point
 }
@@ -120,7 +120,7 @@ void tst_QPen::move_assign()
     QPen p1(Qt::black), p2(Qt::white);
 
     // check that moving does the right thing:
-    p2 = qMove(p1); // could be move or copy assignment, so don't check p1's state
+    p2 = std::move(p1); // could be move or copy assignment, so don't check p1's state
     QCOMPARE(p2.color(), QColor(Qt::black));
 
     // check that move-assigned-from QPen p1 can still be used, albeit
@@ -137,7 +137,7 @@ void tst_QPen::move_assign()
 
     // check that moved-from QPens p2, p3 can still be safely destroyed:
     QPen p5;
-    p5 = qMove(p2);
+    p5 = std::move(p2);
 
     // intentionally no more statements beyond this point
 }
diff --git a/tests/auto/gui/qopenglconfig/tst_qopenglconfig.cpp b/tests/auto/gui/qopenglconfig/tst_qopenglconfig.cpp
index f8dfdbd3b0..b82b277781 100644
--- a/tests/auto/gui/qopenglconfig/tst_qopenglconfig.cpp
+++ b/tests/auto/gui/qopenglconfig/tst_qopenglconfig.cpp
@@ -200,7 +200,7 @@ static void dumpGlConfiguration(QOpenGLContext &context, QTextStream &str)
         << "\nShading language : " << reinterpret_cast<const char *>(functions.glGetString(GL_SHADING_LANGUAGE_VERSION))
         << "\nFormat           : " << context.format();
 
-    QList<QByteArray> extensionList = context.extensions().toList();
+    QList<QByteArray> extensionList = context.extensions().values();
     std::sort(extensionList.begin(), extensionList.end());
     const int extensionCount = extensionList.size();
     str << "\n\nFound " << extensionCount << " extensions:\n";
@@ -233,9 +233,9 @@ void tst_QOpenGlConfig::testGlConfiguration()
 static inline QByteArray msgSetMismatch(const QSet<QString> &expected,
                                         const QSet<QString> &actual)
 {
-    const QString result = QStringList(expected.toList()).join(QLatin1Char(','))
+    const QString result = QStringList(expected.values()).join(QLatin1Char(','))
         + QLatin1String(" != ")
-        + QStringList(actual.toList()).join(QLatin1Char(','));
+        + QStringList(actual.values()).join(QLatin1Char(','));
     return result.toLatin1();
 }
 
diff --git a/tests/auto/gui/text/qfontdatabase/tst_qfontdatabase.cpp b/tests/auto/gui/text/qfontdatabase/tst_qfontdatabase.cpp
index 064e37f73c..2b69801b59 100644
--- a/tests/auto/gui/text/qfontdatabase/tst_qfontdatabase.cpp
+++ b/tests/auto/gui/text/qfontdatabase/tst_qfontdatabase.cpp
@@ -211,8 +211,8 @@ void tst_QFontDatabase::widthTwoTimes()
     f.setPixelSize(pixelSize);
 
     QFontMetrics fm(f);
-    int w1 = fm.charWidth(text, 0);
-    int w2 = fm.charWidth(text, 0);
+    int w1 = fm.horizontalAdvance(text, 0);
+    int w2 = fm.horizontalAdvance(text, 0);
 
     QCOMPARE(w1, w2);
 }
diff --git a/tests/auto/gui/text/qstatictext/tst_qstatictext.cpp b/tests/auto/gui/text/qstatictext/tst_qstatictext.cpp
index d00dc251d8..b091edb64d 100644
--- a/tests/auto/gui/text/qstatictext/tst_qstatictext.cpp
+++ b/tests/auto/gui/text/qstatictext/tst_qstatictext.cpp
@@ -681,7 +681,7 @@ static bool checkPixels(const QImage &image,
             if (pixel != expectedRgb1 && pixel != expectedRgb2) {
                 QString message;
                 QDebug(&message) << "Color mismatch in image" << image
-                    << "at" << x << ',' << y << ':' << showbase << hex << pixel
+                    << "at" << x << ',' << y << ':' << Qt::showbase << Qt::hex << pixel
                     << "(expected: " << expectedRgb1 << ',' << expectedRgb2 << ')';
                 *errorMessage = message.toLocal8Bit();
                 return false;
diff --git a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
index 9c477589f9..9610e5b830 100644
--- a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
+++ b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
@@ -138,6 +138,7 @@ private slots:
     void noModificationOfInputString();
     void superscriptCrash_qtbug53911();
     void showLineAndParagraphSeparatorsCrash();
+    void koreanWordWrap();
 
 private:
     QFont testFont;
@@ -2309,5 +2310,30 @@ void tst_QTextLayout::nbspWithFormat()
     QCOMPARE(layout.lineAt(1).textLength(), s2.length() + 1 + s3.length());
 }
 
+void tst_QTextLayout::koreanWordWrap()
+{
+    QString s = QString::fromUtf8("안녕하세요 여러분!");
+    QTextLayout layout;
+    QTextOption option = layout.textOption();
+    option.setWrapMode(QTextOption::WordWrap);
+    option.setFlags(QTextOption::Flag(QTextOption::IncludeTrailingSpaces));
+    layout.setTextOption(option);
+    layout.setText(s);
+
+    QFontMetrics metrics(layout.font());
+
+    layout.beginLayout();
+    forever {
+        QTextLine line = layout.createLine();
+        if (!line.isValid())
+            break;
+        line.setLineWidth(metrics.width(s) * 0.8);
+    }
+    layout.endLayout();
+    QCOMPARE(layout.lineCount(), 2);
+    QCOMPARE(layout.lineAt(0).textLength(), 6);
+    QCOMPARE(layout.lineAt(1).textLength(), 4);
+}
+
 QTEST_MAIN(tst_QTextLayout)
 #include "tst_qtextlayout.moc"
diff --git a/tests/auto/gui/text/qtextmarkdownimporter/data/headingBulletsContinuations.md b/tests/auto/gui/text/qtextmarkdownimporter/data/headingBulletsContinuations.md
new file mode 100644
index 0000000000..99eb633d17
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownimporter/data/headingBulletsContinuations.md
@@ -0,0 +1,28 @@
+# heading
+- bullet 1
+	continuation line 1, indented via tab
+- bullet 2
+    continuation line 2, indented via 4 spaces
+- bullet 3
+
+	continuation paragraph 3, indented via tab
+
+  - bullet 3.1
+
+    continuation paragraph 3.1, indented via 4 spaces
+
+  - bullet 3.2
+                continuation line, indented via 2 tabs
+- bullet 4
+
+    continuation paragraph 4, indented via 4 spaces
+    and continuing onto another line too
+
+- bullet 5
+
+  continuation paragraph 5, indented via 2 spaces and continuing onto another
+  line too
+
+- bullet 6
+
+plain old paragraph at the end
diff --git a/tests/auto/gui/text/qtextmarkdownimporter/data/thematicBreaks.md b/tests/auto/gui/text/qtextmarkdownimporter/data/thematicBreaks.md
new file mode 100644
index 0000000000..7a0d5388ad
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownimporter/data/thematicBreaks.md
@@ -0,0 +1,17 @@
+Heading
+-------
+***
+stars
+- bullet
+  ** not a bullet or a rule, just two stars
+- [ ] unchecked
+
+    --- indented too far, so not a rule
+*	*	*
+stars with tabs between
+***  	   
+stars with whitespace after
+---   	   
+hyphens with whitespace after
+_____	   
+underscores with whitespace after
diff --git a/tests/auto/gui/text/qtextmarkdownimporter/qtextmarkdownimporter.pro b/tests/auto/gui/text/qtextmarkdownimporter/qtextmarkdownimporter.pro
new file mode 100644
index 0000000000..7b7fb61244
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownimporter/qtextmarkdownimporter.pro
@@ -0,0 +1,9 @@
+CONFIG += testcase
+TARGET = tst_qtextmarkdownimporter
+QT += core-private gui-private testlib
+SOURCES += tst_qtextmarkdownimporter.cpp
+TESTDATA += \
+    data/thematicBreaks.md \
+    data/headingBulletsContinuations.md \
+
+DEFINES += SRCDIR=\\\"$$PWD\\\"
diff --git a/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp b/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
new file mode 100644
index 0000000000..8f51a7a474
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
@@ -0,0 +1,163 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <QTextDocument>
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QTextList>
+#include <QTextTable>
+#include <QBuffer>
+#include <QDebug>
+
+#include <private/qtextmarkdownimporter_p.h>
+
+// #define DEBUG_WRITE_HTML
+
+Q_LOGGING_CATEGORY(lcTests, "qt.text.tests")
+
+static const QChar LineBreak = QChar(0x2028);
+static const QChar Tab = QLatin1Char('\t');
+static const QChar Space = QLatin1Char(' ');
+static const QChar Period = QLatin1Char('.');
+
+class tst_QTextMarkdownImporter : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void headingBulletsContinuations();
+    void thematicBreaks();
+};
+
+void tst_QTextMarkdownImporter::headingBulletsContinuations()
+{
+    const QStringList expectedBlocks = QStringList() <<
+        "" << // we could do without this blank line before the heading, but currently it happens
+        "heading" <<
+        "bullet 1 continuation line 1, indented via tab" <<
+        "bullet 2 continuation line 2, indented via 4 spaces" <<
+        "bullet 3" <<
+        "continuation paragraph 3, indented via tab" <<
+        "bullet 3.1" <<
+        "continuation paragraph 3.1, indented via 4 spaces" <<
+        "bullet 3.2 continuation line, indented via 2 tabs" <<
+        "bullet 4" <<
+        "continuation paragraph 4, indented via 4 spaces and continuing onto another line too" <<
+        "bullet 5" <<
+        // indenting by only 2 spaces is perhaps non-standard but currently is OK
+        "continuation paragraph 5, indented via 2 spaces and continuing onto another line too" <<
+        "bullet 6" <<
+        "plain old paragraph at the end";
+
+    QFile f(QFINDTESTDATA("data/headingBulletsContinuations.md"));
+    QVERIFY(f.open(QFile::ReadOnly | QIODevice::Text));
+    QString md = QString::fromUtf8(f.readAll());
+    f.close();
+
+    QTextDocument doc;
+    QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, md);
+    QTextFrame::iterator iterator = doc.rootFrame()->begin();
+    QTextFrame *currentFrame = iterator.currentFrame();
+    QStringList::const_iterator expectedIt = expectedBlocks.constBegin();
+    int i = 0;
+    while (!iterator.atEnd()) {
+        // There are no child frames
+        QCOMPARE(iterator.currentFrame(), currentFrame);
+        // Check whether we got the right child block
+        QTextBlock block = iterator.currentBlock();
+        QCOMPARE(block.text().contains(LineBreak), false);
+        QCOMPARE(block.text().contains(Tab), false);
+        QVERIFY(!block.text().startsWith(Space));
+        int expectedIndentation = 0;
+        if (block.text().contains(QLatin1String("continuation paragraph")))
+            expectedIndentation = (block.text().contains(Period) ? 2 : 1);
+        qCDebug(lcTests) << i << "child block" << block.text() << "indentation" << block.blockFormat().indent();
+        QVERIFY(expectedIt != expectedBlocks.constEnd());
+        QCOMPARE(block.text(), *expectedIt);
+        if (i > 2)
+            QCOMPARE(block.blockFormat().indent(), expectedIndentation);
+        ++iterator;
+        ++expectedIt;
+        ++i;
+    }
+    QCOMPARE(expectedIt, expectedBlocks.constEnd());
+
+#ifdef DEBUG_WRITE_HTML
+    {
+        QFile out("/tmp/headingBulletsContinuations.html");
+        out.open(QFile::WriteOnly);
+        out.write(doc.toHtml().toLatin1());
+        out.close();
+    }
+#endif
+}
+
+void tst_QTextMarkdownImporter::thematicBreaks()
+{
+    int horizontalRuleCount = 0;
+    int textLinesCount = 0;
+
+    QFile f(QFINDTESTDATA("data/thematicBreaks.md"));
+    QVERIFY(f.open(QFile::ReadOnly | QIODevice::Text));
+    QString md = QString::fromUtf8(f.readAll());
+    f.close();
+
+    QTextDocument doc;
+    QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, md);
+    QTextFrame::iterator iterator = doc.rootFrame()->begin();
+    QTextFrame *currentFrame = iterator.currentFrame();
+    int i = 0;
+    while (!iterator.atEnd()) {
+        // There are no child frames
+        QCOMPARE(iterator.currentFrame(), currentFrame);
+        // Check whether the block is text or a horizontal rule
+        QTextBlock block = iterator.currentBlock();
+        if (block.blockFormat().hasProperty(QTextFormat::BlockTrailingHorizontalRulerWidth))
+            ++horizontalRuleCount;
+        else if (!block.text().isEmpty())
+            ++textLinesCount;
+        qCDebug(lcTests) << i << (block.blockFormat().hasProperty(QTextFormat::BlockTrailingHorizontalRulerWidth) ? QLatin1String("- - -") : block.text());
+        ++iterator;
+        ++i;
+    }
+    QCOMPARE(horizontalRuleCount, 5);
+    QCOMPARE(textLinesCount, 9);
+
+#ifdef DEBUG_WRITE_HTML
+    {
+        QFile out("/tmp/thematicBreaks.html");
+        out.open(QFile::WriteOnly);
+        out.write(doc.toHtml().toLatin1());
+        out.close();
+    }
+#endif
+}
+
+QTEST_MAIN(tst_QTextMarkdownImporter)
+#include "tst_qtextmarkdownimporter.moc"
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/BLACKLIST b/tests/auto/gui/text/qtextmarkdownwriter/BLACKLIST
new file mode 100644
index 0000000000..fc9e5a9efe
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownwriter/BLACKLIST
@@ -0,0 +1,3 @@
+[rewriteDocument]
+winrt # QTBUG-54623
+
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/data/blockquotes.md b/tests/auto/gui/text/qtextmarkdownwriter/data/blockquotes.md
new file mode 100644
index 0000000000..f429fcc21b
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownwriter/data/blockquotes.md
@@ -0,0 +1,39 @@
+In 1958, Mahatma Gandhi was quoted as follows:
+
+> The Earth provides enough to satisfy every man's need but not for every man's
+> greed.
+
+In [The CommonMark Specification](https://spec.commonmark.org/0.29/) John
+MacFarlane writes:
+
+> What distinguishes Markdown from many other lightweight markup syntaxes,
+> which are often easier to write, is its readability. As Gruber writes:
+
+> > The overriding design goal for Markdown's formatting syntax is to make it
+> > as readable as possible. The idea is that a Markdown-formatted document should
+> > be publishable as-is, as plain text, without looking like it's been marked up
+> > with tags or formatting instructions. ( 
+> > [http://daringfireball.net/projects/markdown/](http://daringfireball.net/projects/markdown/))
+
+> The point can be illustrated by comparing a sample of AsciiDoc with an
+> equivalent sample of Markdown. Here is a sample of AsciiDoc from the AsciiDoc
+> manual:
+
+>     1. List item one.
+>     +
+>     List item one continued with a second paragraph followed by an
+>     Indented block.
+>     +
+>     .................
+>     $ ls *.sh
+>     $ mv *.sh ~/tmp
+>     .................
+>     +
+>     List item continued with a third paragraph.
+>     
+>     2. List item two continued with an open block.
+>     ...
+>     
+The quotation includes an embedded quotation and a code quotation and ends with
+an ellipsis due to being incomplete.
+
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/data/example.md b/tests/auto/gui/text/qtextmarkdownwriter/data/example.md
new file mode 100644
index 0000000000..0c3f34e09d
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownwriter/data/example.md
@@ -0,0 +1,95 @@
+# QTextEdit
+
+The QTextEdit widget is an advanced editor that supports formatted rich text.
+It can be used to display HTML and other rich document formats. Internally,
+QTextEdit uses the QTextDocument class to describe both the high-level
+structure of each document and the low-level formatting of paragraphs.
+
+If you are viewing this document in the textedit example, you can edit this
+document to explore Qt's rich text editing features. We have included some
+comments in each of the following sections to encourage you to experiment.
+
+## Font and Paragraph Styles
+
+QTextEdit supports **bold**, *italic*, and ~~strikethrough~~ font styles, and can
+display multicolored text. Font families such as Times New Roman and `Courier`
+can also be used directly.  *If you place the cursor in a region of styled text,
+the controls in the tool bars will change to reflect the current style.*
+
+Paragraphs can be formatted so that the text is left-aligned, right-aligned,
+centered, or fully justified.
+
+*Try changing the alignment of some text and resize the editor to see how the
+text layout changes.*
+
+## Lists
+
+Different kinds of lists can be included in rich text documents. Standard
+bullet lists can be nested, using different symbols for each level of the list:
+
+- Disc symbols are typically used for top-level list items.
+  * Circle symbols can be used to distinguish between items in lower-level
+    lists.
+    + Square symbols provide a reasonable alternative to discs and circles.
+
+Ordered lists can be created that can be used for tables of contents. Different
+characters can be used to enumerate items, and we can use both Roman and Arabic
+numerals in the same list structure:
+
+1.  Introduction
+2.  Qt Tools
+    1)  Qt Assistant
+    2)  Qt Designer
+        1.  Form Editor
+        2.  Component Architecture
+    3)  Qt Linguist
+
+The list will automatically be renumbered if you add or remove items. *Try
+adding new sections to the above list or removing existing item to see the
+numbers change.*
+
+## Images
+
+Inline images are treated like ordinary ranges of characters in the text
+editor, so they flow with the surrounding text. Images can also be selected in
+the same way as text, making it easy to cut, copy, and paste them.
+
+![image](images/logo32.png) *Try to select this image by clicking and dragging
+over it with the mouse, or use the text cursor to select it by holding down
+Shift and using the arrow keys. You can then cut or copy it, and paste it into
+different parts of this document.*
+
+## Tables
+
+QTextEdit can arrange and format tables, supporting features such as row and
+column spans, text formatting within cells, and size constraints for columns.
+
+
+|             |Development Tools                   |Programming Techniques     |Graphical User Interfaces|
+|-------------|------------------------------------|---------------------------|-------------------------|
+|9:00 - 11:00 |Introduction to Qt                                                                      |||
+|11:00 - 13:00|Using qmake                         |Object-oriented Programming|Layouts in Qt            |
+|13:00 - 15:00|Qt Designer Tutorial                |Extreme Programming        |Writing Custom Styles    |
+|15:00 - 17:00|Qt Linguist and Internationalization|                           |                         |
+
+*Try adding text to the cells in the table and experiment with the alignment of
+the paragraphs.*
+
+## Hyperlinks
+
+QTextEdit is designed to support hyperlinks between documents, and this feature
+is used extensively in 
+[Qt Assistant](http://doc.qt.io/qt-5/qtassistant-index.html). Hyperlinks are
+automatically created when an HTML file is imported into an editor. Since the
+rich text framework supports hyperlinks natively, they can also be created
+programatically.
+
+## Undo and Redo
+
+Full support for undo and redo operations is built into QTextEdit and the
+underlying rich text framework. Operations on a document can be packaged
+together to make editing a more comfortable experience for the user.
+
+*Try making changes to this document and press `Ctrl+Z` to undo them. You can
+always recover the original contents of the document.*
+
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/qtextmarkdownwriter.pro b/tests/auto/gui/text/qtextmarkdownwriter/qtextmarkdownwriter.pro
new file mode 100644
index 0000000000..6144710b99
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownwriter/qtextmarkdownwriter.pro
@@ -0,0 +1,9 @@
+CONFIG += testcase
+TARGET = tst_qtextmarkdownwriter
+QT += core-private gui-private testlib
+SOURCES += tst_qtextmarkdownwriter.cpp
+TESTDATA += \
+    data/example.md \
+    data/blockquotes.md \
+
+DEFINES += SRCDIR=\\\"$$PWD\\\"
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp b/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp
new file mode 100644
index 0000000000..9998794762
--- /dev/null
+++ b/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp
@@ -0,0 +1,456 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <QTextDocument>
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QTextList>
+#include <QTextTable>
+#include <QBuffer>
+#include <QDebug>
+
+#include <private/qtextmarkdownwriter_p.h>
+
+// #define DEBUG_WRITE_OUTPUT
+
+class tst_QTextMarkdownWriter : public QObject
+{
+    Q_OBJECT
+public slots:
+    void init();
+    void cleanup();
+
+private slots:
+    void testWriteParagraph_data();
+    void testWriteParagraph();
+    void testWriteList();
+    void testWriteNestedBulletLists_data();
+    void testWriteNestedBulletLists();
+    void testWriteNestedNumericLists();
+    void testWriteTable();
+    void rewriteDocument_data();
+    void rewriteDocument();
+    void fromHtml_data();
+    void fromHtml();
+
+private:
+    QString documentToUnixMarkdown();
+
+private:
+    QTextDocument *document;
+};
+
+void tst_QTextMarkdownWriter::init()
+{
+    document = new QTextDocument();
+}
+
+void tst_QTextMarkdownWriter::cleanup()
+{
+    delete document;
+}
+
+void tst_QTextMarkdownWriter::testWriteParagraph_data()
+{
+    QTest::addColumn<QString>("input");
+    QTest::addColumn<QString>("output");
+
+    QTest::newRow("empty") << "" <<
+        "";
+    QTest::newRow("spaces") << "foobar   word" <<
+        "foobar   word\n\n";
+    QTest::newRow("starting spaces") << "  starting spaces" <<
+        "  starting spaces\n\n";
+    QTest::newRow("trailing spaces") << "trailing spaces  " <<
+        "trailing spaces  \n\n";
+    QTest::newRow("tab") << "word\ttab x" <<
+        "word\ttab x\n\n";
+    QTest::newRow("tab2") << "word\t\ttab\tx" <<
+        "word\t\ttab\tx\n\n";
+    QTest::newRow("misc") << "foobar   word\ttab x" <<
+        "foobar   word\ttab x\n\n";
+    QTest::newRow("misc2") << "\t     \tFoo" <<
+        "\t     \tFoo\n\n";
+}
+
+void tst_QTextMarkdownWriter::testWriteParagraph()
+{
+    QFETCH(QString, input);
+    QFETCH(QString, output);
+
+    QTextCursor cursor(document);
+    cursor.insertText(input);
+
+    QCOMPARE(documentToUnixMarkdown(), output);
+}
+
+void tst_QTextMarkdownWriter::testWriteList()
+{
+    QTextCursor cursor(document);
+    QTextList *list = cursor.createList(QTextListFormat::ListDisc);
+    cursor.insertText("ListItem 1");
+    list->add(cursor.block());
+    cursor.insertBlock();
+    cursor.insertText("ListItem 2");
+    list->add(cursor.block());
+
+    QCOMPARE(documentToUnixMarkdown(), QString::fromLatin1(
+        "- ListItem 1\n- ListItem 2\n"));
+}
+
+void tst_QTextMarkdownWriter::testWriteNestedBulletLists_data()
+{
+    QTest::addColumn<bool>("checkbox");
+    QTest::addColumn<bool>("checked");
+    QTest::addColumn<bool>("continuationLine");
+    QTest::addColumn<bool>("continuationParagraph");
+    QTest::addColumn<QString>("expectedOutput");
+
+    QTest::newRow("plain bullets") << false << false << false << false <<
+        "- ListItem 1\n  * ListItem 2\n    + ListItem 3\n- ListItem 4\n  * ListItem 5\n";
+    QTest::newRow("bullets with continuation lines") << false << false << true << false <<
+        "- ListItem 1\n  * ListItem 2\n    + ListItem 3 with text that won't fit on one line and thus needs a\n      continuation\n- ListItem 4\n  * ListItem 5 with text that won't fit on one line and thus needs a\n    continuation\n";
+    QTest::newRow("bullets with continuation paragraphs") << false << false << false << true <<
+        "- ListItem 1\n\n  * ListItem 2\n    + ListItem 3\n\n      continuation\n\n- ListItem 4\n\n  * ListItem 5\n\n    continuation\n\n";
+    QTest::newRow("unchecked") << true << false << false << false <<
+        "- [ ] ListItem 1\n  * [ ] ListItem 2\n    + [ ] ListItem 3\n- [ ] ListItem 4\n  * [ ] ListItem 5\n";
+    QTest::newRow("checked") << true << true << false << false <<
+        "- [x] ListItem 1\n  * [x] ListItem 2\n    + [x] ListItem 3\n- [x] ListItem 4\n  * [x] ListItem 5\n";
+    QTest::newRow("checked with continuation lines") << true << true << true << false <<
+        "- [x] ListItem 1\n  * [x] ListItem 2\n    + [x] ListItem 3 with text that won't fit on one line and thus needs a\n      continuation\n- [x] ListItem 4\n  * [x] ListItem 5 with text that won't fit on one line and thus needs a\n    continuation\n";
+    QTest::newRow("checked with continuation paragraphs") << true << true << false << true <<
+        "- [x] ListItem 1\n\n  * [x] ListItem 2\n    + [x] ListItem 3\n\n      continuation\n\n- [x] ListItem 4\n\n  * [x] ListItem 5\n\n    continuation\n\n";
+}
+
+void tst_QTextMarkdownWriter::testWriteNestedBulletLists()
+{
+    QFETCH(bool, checkbox);
+    QFETCH(bool, checked);
+    QFETCH(bool, continuationParagraph);
+    QFETCH(bool, continuationLine);
+    QFETCH(QString, expectedOutput);
+
+    QTextCursor cursor(document);
+    QTextBlockFormat blockFmt = cursor.blockFormat();
+    if (checkbox) {
+        blockFmt.setMarker(checked ? QTextBlockFormat::Checked : QTextBlockFormat::Unchecked);
+        cursor.setBlockFormat(blockFmt);
+    }
+
+    QTextList *list1 = cursor.createList(QTextListFormat::ListDisc);
+    cursor.insertText("ListItem 1");
+    list1->add(cursor.block());
+
+    QTextListFormat fmt2;
+    fmt2.setStyle(QTextListFormat::ListCircle);
+    fmt2.setIndent(2);
+    QTextList *list2 = cursor.insertList(fmt2);
+    cursor.insertText("ListItem 2");
+
+    QTextListFormat fmt3;
+    fmt3.setStyle(QTextListFormat::ListSquare);
+    fmt3.setIndent(3);
+    cursor.insertList(fmt3);
+    cursor.insertText(continuationLine ?
+                          "ListItem 3 with text that won't fit on one line and thus needs a continuation" :
+                          "ListItem 3");
+    if (continuationParagraph) {
+        QTextBlockFormat blockFmt;
+        blockFmt.setIndent(2);
+        cursor.insertBlock(blockFmt);
+        cursor.insertText("continuation");
+    }
+
+    cursor.insertBlock(blockFmt);
+    cursor.insertText("ListItem 4");
+    list1->add(cursor.block());
+
+    cursor.insertBlock();
+    cursor.insertText(continuationLine ?
+                          "ListItem 5 with text that won't fit on one line and thus needs a continuation" :
+                          "ListItem 5");
+    list2->add(cursor.block());
+    if (continuationParagraph) {
+        QTextBlockFormat blockFmt;
+        blockFmt.setIndent(2);
+        cursor.insertBlock(blockFmt);
+        cursor.insertText("continuation");
+    }
+
+    QString output = documentToUnixMarkdown();
+#ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out("/tmp/" + QLatin1String(QTest::currentDataTag()) + ".md");
+        out.open(QFile::WriteOnly);
+        out.write(output.toUtf8());
+        out.close();
+    }
+#endif
+    QCOMPARE(documentToUnixMarkdown(), expectedOutput);
+}
+
+void tst_QTextMarkdownWriter::testWriteNestedNumericLists()
+{
+    QTextCursor cursor(document);
+
+    QTextList *list1 = cursor.createList(QTextListFormat::ListDecimal);
+    cursor.insertText("ListItem 1");
+    list1->add(cursor.block());
+
+    QTextListFormat fmt2;
+    fmt2.setStyle(QTextListFormat::ListLowerAlpha);
+    fmt2.setNumberSuffix(QLatin1String(")"));
+    fmt2.setIndent(2);
+    QTextList *list2 = cursor.insertList(fmt2);
+    cursor.insertText("ListItem 2");
+
+    QTextListFormat fmt3;
+    fmt3.setStyle(QTextListFormat::ListDecimal);
+    fmt3.setIndent(3);
+    cursor.insertList(fmt3);
+    cursor.insertText("ListItem 3");
+
+    cursor.insertBlock();
+    cursor.insertText("ListItem 4");
+    list1->add(cursor.block());
+
+    cursor.insertBlock();
+    cursor.insertText("ListItem 5");
+    list2->add(cursor.block());
+
+    // There's no QTextList API to set the starting number so we hard-coded all lists to start at 1 (QTBUG-65384)
+    QCOMPARE(documentToUnixMarkdown(), QString::fromLatin1(
+                 "1.  ListItem 1\n    1)  ListItem 2\n        1.  ListItem 3\n2.  ListItem 4\n    2)  ListItem 5\n"));
+}
+
+void tst_QTextMarkdownWriter::testWriteTable()
+{
+    QTextCursor cursor(document);
+    QTextTable * table = cursor.insertTable(4, 3);
+    cursor = table->cellAt(0, 0).firstCursorPosition();
+    // valid Markdown tables need headers, but QTextTable doesn't make that distinction
+    // so QTextMarkdownWriter assumes the first row of any table is a header
+    cursor.insertText("one");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("two");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("three");
+    cursor.movePosition(QTextCursor::NextCell);
+
+    cursor.insertText("alice");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("bob");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("carl");
+    cursor.movePosition(QTextCursor::NextCell);
+
+    cursor.insertText("dennis");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("eric");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("fiona");
+    cursor.movePosition(QTextCursor::NextCell);
+
+    cursor.insertText("gina");
+    /*
+        |one   |two |three|
+        |------|----|-----|
+        |alice |bob |carl |
+        |dennis|eric|fiona|
+        |gina  |    |     |
+    */
+
+    QString md = documentToUnixMarkdown();
+
+#ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out("/tmp/table.md");
+        out.open(QFile::WriteOnly);
+        out.write(md.toUtf8());
+        out.close();
+    }
+#endif
+
+    QString expected = QString::fromLatin1(
+        "\n|one   |two |three|\n|------|----|-----|\n|alice |bob |carl |\n|dennis|eric|fiona|\n|gina  |    |     |\n\n");
+    QCOMPARE(md, expected);
+
+    // create table with merged cells
+    document->clear();
+    cursor = QTextCursor(document);
+    table = cursor.insertTable(3, 3);
+    table->mergeCells(0, 0, 1, 2);
+    table->mergeCells(1, 1, 1, 2);
+    cursor = table->cellAt(0, 0).firstCursorPosition();
+    cursor.insertText("a");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("b");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("c");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("d");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("e");
+    cursor.movePosition(QTextCursor::NextCell);
+    cursor.insertText("f");
+    /*
+      +---+-+
+      |a  |b|
+      +---+-+
+      |c|  d|
+      +-+-+-+
+      |e|f| |
+      +-+-+-+
+
+      generates
+
+      |a ||b|
+      |-|-|-|
+      |c|d ||
+      |e|f| |
+
+    */
+
+    md = documentToUnixMarkdown();
+
+#ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out("/tmp/table-merged-cells.md");
+        out.open(QFile::WriteOnly);
+        out.write(md.toUtf8());
+        out.close();
+    }
+#endif
+
+    QCOMPARE(md, QString::fromLatin1("\n|a ||b|\n|-|-|-|\n|c|d ||\n|e|f| |\n\n"));
+}
+
+void tst_QTextMarkdownWriter::rewriteDocument_data()
+{
+    QTest::addColumn<QString>("inputFile");
+
+    QTest::newRow("block quotes") << "blockquotes.md";
+    QTest::newRow("example") << "example.md";
+}
+
+void tst_QTextMarkdownWriter::rewriteDocument()
+{
+    QFETCH(QString, inputFile);
+    QTextDocument doc;
+    QFile f(QFINDTESTDATA("data/" + inputFile));
+    QVERIFY(f.open(QFile::ReadOnly | QIODevice::Text));
+    QString orig = QString::fromUtf8(f.readAll());
+    f.close();
+    doc.setMarkdown(orig);
+    QString md = doc.toMarkdown();
+
+#ifdef DEBUG_WRITE_OUTPUT
+    QFile out("/tmp/rewrite-" + inputFile);
+    out.open(QFile::WriteOnly);
+    out.write(md.toUtf8());
+    out.close();
+#endif
+
+    QCOMPARE(md, orig);
+}
+
+void tst_QTextMarkdownWriter::fromHtml_data()
+{
+    QTest::addColumn<QString>("expectedInput");
+    QTest::addColumn<QString>("expectedOutput");
+
+    QTest::newRow("long URL") <<
+        "<span style=\"font-style:italic;\">https://www.example.com/dir/subdir/subsubdir/subsubsubdir/subsubsubsubdir/subsubsubsubsubdir/</span>" <<
+        "*https://www.example.com/dir/subdir/subsubdir/subsubsubdir/subsubsubsubdir/subsubsubsubsubdir/*\n\n";
+    QTest::newRow("non-emphasis inline asterisk") << "3 * 4" << "3 * 4\n\n";
+    QTest::newRow("arithmetic") << "(2 * a * x + b)^2 = b^2 - 4 * a * c" << "(2 * a * x + b)^2 = b^2 - 4 * a * c\n\n";
+    QTest::newRow("escaped asterisk after newline") <<
+        "The first sentence of this paragraph holds 80 characters, then there's a star. * This is wrapped, but is <em>not</em> a bullet point." <<
+        "The first sentence of this paragraph holds 80 characters, then there's a star.\n\\* This is wrapped, but is *not* a bullet point.\n\n";
+    QTest::newRow("escaped plus after newline") <<
+        "The first sentence of this paragraph holds 80 characters, then there's a plus. + This is wrapped, but is <em>not</em> a bullet point." <<
+        "The first sentence of this paragraph holds 80 characters, then there's a plus.\n\\+ This is wrapped, but is *not* a bullet point.\n\n";
+    QTest::newRow("escaped hyphen after newline") <<
+        "The first sentence of this paragraph holds 80 characters, then there's a minus. - This is wrapped, but is <em>not</em> a bullet point." <<
+        "The first sentence of this paragraph holds 80 characters, then there's a minus.\n\\- This is wrapped, but is *not* a bullet point.\n\n";
+    QTest::newRow("list items with indented continuations") <<
+        "<ul><li>bullet<p>continuation paragraph</p></li><li>another bullet<br/>continuation line</li></ul>" <<
+        "- bullet\n\n  continuation paragraph\n\n- another bullet\n  continuation line\n";
+    QTest::newRow("nested list items with continuations") <<
+        "<ul><li>bullet<p>continuation paragraph</p></li><li>another bullet<br/>continuation line</li><ul><li>bullet<p>continuation paragraph</p></li><li>another bullet<br/>continuation line</li></ul></ul>" <<
+        "- bullet\n\n  continuation paragraph\n\n- another bullet\n  continuation line\n\n  - bullet\n\n    continuation paragraph\n\n  - another bullet\n    continuation line\n";
+    QTest::newRow("nested ordered list items with continuations") <<
+        "<ol><li>item<p>continuation paragraph</p></li><li>another item<br/>continuation line</li><ol><li>item<p>continuation paragraph</p></li><li>another item<br/>continuation line</li></ol><li>another</li><li>another</li></ol>" <<
+        "1.  item\n\n    continuation paragraph\n\n2.  another item\n    continuation line\n\n    1.  item\n\n        continuation paragraph\n\n    2.  another item\n        continuation line\n\n3.  another\n4.  another\n";
+    QTest::newRow("thematic break") <<
+        "something<hr/>something else" <<
+        "something\n\n- - -\nsomething else\n\n";
+    QTest::newRow("block quote") <<
+        "<p>In 1958, Mahatma Gandhi was quoted as follows:</p><blockquote>The Earth provides enough to satisfy every man's need but not for every man's greed.</blockquote>" <<
+        "In 1958, Mahatma Gandhi was quoted as follows:\n\n> The Earth provides enough to satisfy every man's need but not for every man's\n> greed.\n\n";
+    // TODO
+//    QTest::newRow("escaped number and paren after double newline") <<
+//        "<p>(The first sentence of this paragraph is a line, the next paragraph has a number</p>13) but that's not part of an ordered list" <<
+//        "(The first sentence of this paragraph is a line, the next paragraph has a number\n\n13\\) but that's not part of an ordered list\n\n";
+//    QTest::newRow("preformats with embedded backticks") <<
+//        "<pre>none `one` ``two``</pre><pre>```three``` ````four````</pre>plain" <<
+//        "``` none `one` ``two`` ```\n\n````` ```three``` ````four```` `````\n\nplain\n\n";
+}
+
+void tst_QTextMarkdownWriter::fromHtml()
+{
+    QFETCH(QString, expectedInput);
+    QFETCH(QString, expectedOutput);
+
+    document->setHtml(expectedInput);
+    QString output = documentToUnixMarkdown();
+
+#ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out("/tmp/" + QLatin1String(QTest::currentDataTag()) + ".md");
+        out.open(QFile::WriteOnly);
+        out.write(output.toUtf8());
+        out.close();
+    }
+#endif
+
+    QCOMPARE(output, expectedOutput);
+}
+
+QString tst_QTextMarkdownWriter::documentToUnixMarkdown()
+{
+    QString ret;
+    QTextStream ts(&ret, QIODevice::WriteOnly);
+    QTextMarkdownWriter writer(ts, QTextDocument::MarkdownDialectGitHub);
+    writer.writeAll(document);
+    return ret;
+}
+
+QTEST_MAIN(tst_QTextMarkdownWriter)
+#include "tst_qtextmarkdownwriter.moc"
diff --git a/tests/auto/gui/text/text.pro b/tests/auto/gui/text/text.pro
index 6b033fb506..794d9ea8d3 100644
--- a/tests/auto/gui/text/text.pro
+++ b/tests/auto/gui/text/text.pro
@@ -28,12 +28,16 @@ SUBDIRS=\
 
 win32:SUBDIRS -= qtextpiecetable
 
+qtConfig(textmarkdownreader): SUBDIRS += qtextmarkdownimporter
+qtConfig(textmarkdownwriter): SUBDIRS += qtextmarkdownwriter
+
 !qtConfig(private_tests): SUBDIRS -= \
            qfontcache \
            qcssparser \
            qtextlayout \
            qtextpiecetable \
            qzip \
+           qtextmarkdownwriter \
            qtextodfwriter
 
 !qtHaveModule(xml): SUBDIRS -= \
diff --git a/tests/auto/network-settings.h b/tests/auto/network-settings.h
index f162c3ae9f..bf632c9846 100644
--- a/tests/auto/network-settings.h
+++ b/tests/auto/network-settings.h
@@ -72,15 +72,20 @@ public:
     }
 
 #ifdef QT_NETWORK_LIB
-    static QHostAddress serverIP()
+    static QHostAddress getServerIpImpl(const QString &serverName)
     {
-        const QHostInfo info = QHostInfo::fromName(serverName());
+        const QHostInfo info = QHostInfo::fromName(serverName);
         if (info.error()) {
             QTest::qFail(qPrintable(info.errorString()), __FILE__, __LINE__);
             return QHostAddress();
         }
         return info.addresses().constFirst();
     }
+
+    static QHostAddress serverIP()
+    {
+        return getServerIpImpl(serverName());
+    }
 #endif
 
     static bool compareReplyIMAP(QByteArray const& actual)
@@ -214,4 +219,67 @@ public:
         return serverName();
 #endif
     }
+    static QString imapServerName()
+    {
+#ifdef QT_TEST_SERVER_NAME
+        return QString("cyrus.") % serverDomainName();
+#else
+        return serverName();
+#endif
+    }
+
+    static QString echoServerName()
+    {
+#ifdef QT_TEST_SERVER_NAME
+        return QString("echo.") % serverDomainName();
+#else
+        return serverName();
+#endif
+    }
+
+    static QString firewallServerName()
+    {
+#ifdef QT_TEST_SERVER_NAME
+        return QString("iptables.") % serverDomainName();
+#else
+        return serverName();
+#endif
+    }
+
+#ifdef QT_NETWORK_LIB
+    static QHostAddress imapServerIp()
+    {
+        return getServerIpImpl(imapServerName());
+    }
+
+    static QHostAddress httpServerIp()
+    {
+        return getServerIpImpl(httpServerName());
+    }
+
+    static QHostAddress httpProxyServerIp()
+    {
+        return getServerIpImpl(httpProxyServerName());
+    }
+
+    static QHostAddress socksProxyServerIp()
+    {
+        return getServerIpImpl(socksProxyServerName());
+    }
+
+    static QHostAddress ftpProxyServerIp()
+    {
+        return getServerIpImpl(ftpProxyServerName());
+    }
+
+    static QHostAddress ftpServerIp()
+    {
+        return getServerIpImpl(ftpServerName());
+    }
+
+    static QHostAddress firewallServerIp()
+    {
+        return getServerIpImpl(firewallServerName());
+    }
+#endif
 };
diff --git a/tests/auto/network/access/qabstractnetworkcache/qabstractnetworkcache.pro b/tests/auto/network/access/qabstractnetworkcache/qabstractnetworkcache.pro
index 1874f001ab..c722100ead 100644
--- a/tests/auto/network/access/qabstractnetworkcache/qabstractnetworkcache.pro
+++ b/tests/auto/network/access/qabstractnetworkcache/qabstractnetworkcache.pro
@@ -5,3 +5,5 @@ SOURCES  += tst_qabstractnetworkcache.cpp
 
 TESTDATA += tests/*
 
+CONFIG += unsupported/testserver
+QT_TEST_SERVER_LIST = apache2
diff --git a/tests/auto/network/access/qabstractnetworkcache/tst_qabstractnetworkcache.cpp b/tests/auto/network/access/qabstractnetworkcache/tst_qabstractnetworkcache.cpp
index b8d9adf7a1..182e3e9547 100644
--- a/tests/auto/network/access/qabstractnetworkcache/tst_qabstractnetworkcache.cpp
+++ b/tests/auto/network/access/qabstractnetworkcache/tst_qabstractnetworkcache.cpp
@@ -39,7 +39,7 @@
 
 #include <algorithm>
 
-#define TESTFILE QLatin1String("http://") + QtNetworkSettings::serverName() + QLatin1String("/qtest/cgi-bin/")
+#define TESTFILE QLatin1String("http://") + QtNetworkSettings::httpServerName() + QLatin1String("/qtest/cgi-bin/")
 
 class tst_QAbstractNetworkCache : public QObject
 {
@@ -127,8 +127,13 @@ Q_DECLARE_METATYPE(QNetworkRequest::CacheLoadControl)
 
 void tst_QAbstractNetworkCache::initTestCase()
 {
+#if defined(QT_TEST_SERVER)
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpServerName(), 80));
+#else
     if (!QtNetworkSettings::verifyTestNetworkSettings())
         QSKIP("No network test server available");
+#endif
+
 #ifndef QT_NO_BEARERMANAGEMENT
     netConfMan = new QNetworkConfigurationManager(this);
     networkConfiguration = netConfMan->defaultConfiguration();
diff --git a/tests/auto/network/access/qhttpnetworkconnection/qhttpnetworkconnection.pro b/tests/auto/network/access/qhttpnetworkconnection/qhttpnetworkconnection.pro
index d32b651b86..84e6f857a1 100644
--- a/tests/auto/network/access/qhttpnetworkconnection/qhttpnetworkconnection.pro
+++ b/tests/auto/network/access/qhttpnetworkconnection/qhttpnetworkconnection.pro
@@ -4,3 +4,6 @@ SOURCES  += tst_qhttpnetworkconnection.cpp
 requires(qtConfig(private_tests))
 
 QT = core-private network-private testlib
+
+CONFIG += unsupported/testserver
+QT_TEST_SERVER_LIST = apache2
diff --git a/tests/auto/network/access/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp b/tests/auto/network/access/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
index 84766f5484..0a9320118d 100644
--- a/tests/auto/network/access/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
+++ b/tests/auto/network/access/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
@@ -50,6 +50,7 @@ private:
     bool finishedCalled;
     bool finishedWithErrorCalled;
     QNetworkReply::NetworkError netErrorCode;
+    QString (*httpServerName)() = QtNetworkSettings::httpServerName;
 
 private Q_SLOTS:
     void initTestCase();
@@ -101,7 +102,11 @@ private Q_SLOTS:
 
 void tst_QHttpNetworkConnection::initTestCase()
 {
+#if defined(QT_TEST_SERVER)
+    QVERIFY(QtNetworkSettings::verifyConnection(httpServerName(), 80));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif
 }
 
 void tst_QHttpNetworkConnection::options_data()
@@ -126,10 +131,9 @@ void tst_QHttpNetworkConnection::head_data()
     QTest::addColumn<QString>("statusString");
     QTest::addColumn<int>("contentLength");
 
-    QTest::newRow("success-internal") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfc3252.txt" << ushort(80) << false << 200 << "OK" << 25962;
-
-    QTest::newRow("failure-path") << "http://" << QtNetworkSettings::serverName() << "/t" << ushort(80) << false << 404 << "Not Found" << -1;
-    QTest::newRow("failure-protocol") << "" << QtNetworkSettings::serverName() << "/qtest/rfc3252.txt" << ushort(80) << false << 400 << "Bad Request" << -1;
+    QTest::newRow("success-internal") << "http://" << httpServerName() << "/qtest/rfc3252.txt" << ushort(80) << false << 200 << "OK" << 25962;
+    QTest::newRow("failure-path") << "http://" << httpServerName() << "/t" << ushort(80) << false << 404 << "Not Found" << -1;
+    QTest::newRow("failure-protocol") << "" << httpServerName() << "/qtest/rfc3252.txt" << ushort(80) << false << 400 << "Bad Request" << -1;
 }
 
 void tst_QHttpNetworkConnection::head()
@@ -175,10 +179,10 @@ void tst_QHttpNetworkConnection::get_data()
     QTest::addColumn<int>("contentLength");
     QTest::addColumn<int>("downloadSize");
 
-    QTest::newRow("success-internal") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfc3252.txt" << ushort(80) << false << 200 << "OK" << 25962 << 25962;
+    QTest::newRow("success-internal") << "http://" << httpServerName() << "/qtest/rfc3252.txt" << ushort(80) << false << 200 << "OK" << 25962 << 25962;
 
-    QTest::newRow("failure-path") << "http://" << QtNetworkSettings::serverName() << "/t" << ushort(80) << false << 404 << "Not Found" << -1 << -1;
-    QTest::newRow("failure-protocol") << "" << QtNetworkSettings::serverName() << "/qtest/rfc3252.txt" << ushort(80) << false << 400 << "Bad Request" << -1 << -1;
+    QTest::newRow("failure-path") << "http://" << httpServerName() << "/t" << ushort(80) << false << 404 << "Not Found" << -1 << -1;
+    QTest::newRow("failure-protocol") << "" << httpServerName() << "/qtest/rfc3252.txt" << ushort(80) << false << 400 << "Bad Request" << -1 << -1;
 }
 
 void tst_QHttpNetworkConnection::get()
@@ -244,8 +248,8 @@ void tst_QHttpNetworkConnection::put_data()
     QTest::addColumn<QString>("data");
     QTest::addColumn<bool>("succeed");
 
-    QTest::newRow("success-internal") << "http://" << QtNetworkSettings::serverName() << "/dav/file1.txt" << ushort(80) << false << "Hello World\nEnd of file\n"<<true;
-    QTest::newRow("fail-internal") << "http://" << QtNetworkSettings::serverName() << "/dav2/file1.txt" << ushort(80) << false << "Hello World\nEnd of file\n"<<false;
+    QTest::newRow("success-internal") << "http://" << httpServerName() << "/dav/file1.txt" << ushort(80) << false << "Hello World\nEnd of file\n"<<true;
+    QTest::newRow("fail-internal") << "http://" << httpServerName() << "/dav2/file1.txt" << ushort(80) << false << "Hello World\nEnd of file\n"<<false;
     QTest::newRow("fail-host") << "http://" << "invalid.test.qt-project.org" << "/dav2/file1.txt" << ushort(80) << false << "Hello World\nEnd of file\n"<<false;
 }
 
@@ -324,8 +328,8 @@ void tst_QHttpNetworkConnection::post_data()
     QTest::addColumn<int>("contentLength");
     QTest::addColumn<int>("downloadSize");
 
-    QTest::newRow("success-internal") << "http://" << QtNetworkSettings::serverName() << "/qtest/cgi-bin/echo.cgi" << ushort(80) << false << "7 bytes" << 200 << "OK" << 7 << 7;
-    QTest::newRow("failure-internal") << "http://" << QtNetworkSettings::serverName() << "/t" << ushort(80) << false << "Hello World" << 404 << "Not Found" << -1 << -1;
+    QTest::newRow("success-internal") << "http://" << httpServerName() << "/qtest/cgi-bin/echo.cgi" << ushort(80) << false << "7 bytes" << 200 << "OK" << 7 << 7;
+    QTest::newRow("failure-internal") << "http://" << httpServerName() << "/t" << ushort(80) << false << "Hello World" << 404 << "Not Found" << -1 << -1;
 }
 
 void tst_QHttpNetworkConnection::post()
@@ -449,11 +453,11 @@ void tst_QHttpNetworkConnection::get401_data()
     QTest::addColumn<QString>("password");
     QTest::addColumn<int>("statusCode");
 
-    QTest::newRow("no-credentials") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << false << "" << ""<<401;
-    QTest::newRow("invalid-credentials") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << true << "test" << "test"<<401;
-    QTest::newRow("valid-credentials") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << true << "httptest" << "httptest"<<200;
-    QTest::newRow("digest-authentication-invalid") << "http://" << QtNetworkSettings::serverName() << "/qtest/auth-digest/index.html" << ushort(80) << false << true << "wrong" << "wrong"<<401;
-    QTest::newRow("digest-authentication-valid") << "http://" << QtNetworkSettings::serverName() << "/qtest/auth-digest/index.html" << ushort(80) << false << true << "httptest" << "httptest"<<200;
+    QTest::newRow("no-credentials") << "http://" << httpServerName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << false << "" << ""<<401;
+    QTest::newRow("invalid-credentials") << "http://" << httpServerName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << true << "test" << "test"<<401;
+    QTest::newRow("valid-credentials") << "http://" << httpServerName() << "/qtest/rfcs-auth/index.html" << ushort(80) << false << true << "httptest" << "httptest"<<200;
+    QTest::newRow("digest-authentication-invalid") << "http://" << httpServerName() << "/qtest/auth-digest/index.html" << ushort(80) << false << true << "wrong" << "wrong"<<401;
+    QTest::newRow("digest-authentication-valid") << "http://" << httpServerName() << "/qtest/auth-digest/index.html" << ushort(80) << false << true << "httptest" << "httptest"<<200;
 }
 
 void tst_QHttpNetworkConnection::get401()
@@ -508,9 +512,9 @@ void tst_QHttpNetworkConnection::compression_data()
     QTest::addColumn<bool>("autoCompress");
     QTest::addColumn<QString>("contentCoding");
 
-    QTest::newRow("success-autogzip-temp") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfcs/rfc2616.html" << ushort(80) << false << 200 << "OK" << -1 << 418321 << true << "";
-    QTest::newRow("success-nogzip-temp") << "http://" << QtNetworkSettings::serverName() << "/qtest/rfcs/rfc2616.html" << ushort(80) << false << 200 << "OK" << 418321 << 418321 << false << "identity";
-    QTest::newRow("success-manualgzip-temp") << "http://" << QtNetworkSettings::serverName() << "/qtest/deflate/rfc2616.html" << ushort(80) << false << 200 << "OK" << 119124 << 119124 << false << "gzip";
+    QTest::newRow("success-autogzip-temp") << "http://" << httpServerName() << "/qtest/rfcs/rfc2616.html" << ushort(80) << false << 200 << "OK" << -1 << 418321 << true << "";
+    QTest::newRow("success-nogzip-temp") << "http://" << httpServerName() << "/qtest/rfcs/rfc2616.html" << ushort(80) << false << 200 << "OK" << 418321 << 418321 << false << "identity";
+    QTest::newRow("success-manualgzip-temp") << "http://" << httpServerName() << "/qtest/deflate/rfc2616.html" << ushort(80) << false << 200 << "OK" << 119124 << 119124 << false << "gzip";
 
 }
 
@@ -586,9 +590,9 @@ void tst_QHttpNetworkConnection::ignoresslerror_data()
     // fluke's certificate is signed by a non-standard authority.
     // Since we don't introduce that CA into the SSL verification chain,
     // connecting should fail.
-    QTest::newRow("success-init") << "https://" << QtNetworkSettings::serverName() << "/" << ushort(443) << true << true << false << 200;
-    QTest::newRow("success-fromSignal") << "https://" << QtNetworkSettings::serverName() << "/" << ushort(443) << true << false << true << 200;
-    QTest::newRow("failure") << "https://" << QtNetworkSettings::serverName() << "/" << ushort(443) << true << false << false << 100;
+    QTest::newRow("success-init") << "https://" << httpServerName() << "/" << ushort(443) << true << true << false << 200;
+    QTest::newRow("success-fromSignal") << "https://" << httpServerName() << "/" << ushort(443) << true << false << true << 200;
+    QTest::newRow("failure") << "https://" << httpServerName() << "/" << ushort(443) << true << false << false << 100;
 }
 
 void tst_QHttpNetworkConnection::ignoresslerror()
@@ -635,7 +639,7 @@ void tst_QHttpNetworkConnection::nossl_data()
     QTest::addColumn<bool>("encrypt");
     QTest::addColumn<QNetworkReply::NetworkError>("networkError");
 
-    QTest::newRow("protocol-error") << "https://" << QtNetworkSettings::serverName() << "/" << ushort(443) << true <<QNetworkReply::ProtocolUnknownError;
+    QTest::newRow("protocol-error") << "https://" << httpServerName() << "/" << ushort(443) << true <<QNetworkReply::ProtocolUnknownError;
 }
 
 void tst_QHttpNetworkConnection::nossl()
@@ -696,7 +700,7 @@ void tst_QHttpNetworkConnection::getMultiple()
     QFETCH(bool, pipeliningAllowed);
     QFETCH(int, requestCount);
 
-    QHttpNetworkConnection connection(connectionCount, QtNetworkSettings::serverName());
+    QHttpNetworkConnection connection(connectionCount, httpServerName());
 
     QList<QHttpNetworkRequest*> requests;
     QList<QHttpNetworkReply*> replies;
@@ -705,7 +709,7 @@ void tst_QHttpNetworkConnection::getMultiple()
         // depending on what you use the results will vary.
         // for the "real" results, use a URL that has "internet latency" for you. Then (6 connections, pipelining) will win.
         // for LAN latency, you will possibly get that (1 connection, no pipelining) is the fastest
-        QHttpNetworkRequest *request = new QHttpNetworkRequest("http://" + QtNetworkSettings::serverName() + "/qtest/rfc3252.txt");
+        QHttpNetworkRequest *request = new QHttpNetworkRequest("http://" + httpServerName() + "/qtest/rfc3252.txt");
         if (pipeliningAllowed)
             request->setPipeliningAllowed(true);
         requests.append(request);
@@ -723,7 +727,7 @@ void tst_QHttpNetworkConnection::getMultipleWithPipeliningAndMultiplePriorities(
     quint16 requestCount = 100;
 
     // use 2 connections.
-    QHttpNetworkConnection connection(2, QtNetworkSettings::serverName());
+    QHttpNetworkConnection connection(2, httpServerName());
 
     QList<QHttpNetworkRequest*> requests;
     QList<QHttpNetworkReply*> replies;
@@ -731,9 +735,9 @@ void tst_QHttpNetworkConnection::getMultipleWithPipeliningAndMultiplePriorities(
     for (int i = 0; i < requestCount; i++) {
         QHttpNetworkRequest *request = 0;
         if (i % 3)
-            request = new QHttpNetworkRequest("http://" + QtNetworkSettings::serverName() + "/qtest/rfc3252.txt", QHttpNetworkRequest::Get);
+            request = new QHttpNetworkRequest("http://" + httpServerName() + "/qtest/rfc3252.txt", QHttpNetworkRequest::Get);
         else
-            request = new QHttpNetworkRequest("http://" + QtNetworkSettings::serverName() + "/qtest/rfc3252.txt", QHttpNetworkRequest::Head);
+            request = new QHttpNetworkRequest("http://" + httpServerName() + "/qtest/rfc3252.txt", QHttpNetworkRequest::Head);
 
         if (i % 2 || i % 3)
             request->setPipeliningAllowed(true);
@@ -800,9 +804,9 @@ void tst_QHttpNetworkConnection::getMultipleWithPriorities()
 {
     quint16 requestCount = 100;
     // use 2 connections.
-    QHttpNetworkConnection connection(2, QtNetworkSettings::serverName());
+    QHttpNetworkConnection connection(2, httpServerName());
     GetMultipleWithPrioritiesReceiver receiver(requestCount);
-    QUrl url("http://" + QtNetworkSettings::serverName() + "/qtest/rfc3252.txt");
+    QUrl url("http://" + httpServerName() + "/qtest/rfc3252.txt");
     QList<QHttpNetworkRequest*> requests;
     QList<QHttpNetworkReply*> replies;
 
@@ -854,10 +858,10 @@ void tst_QHttpNetworkConnection::getEmptyWithPipelining()
 {
     quint16 requestCount = 50;
     // use 2 connections.
-    QHttpNetworkConnection connection(2, QtNetworkSettings::serverName());
+    QHttpNetworkConnection connection(2, httpServerName());
     GetEmptyWithPipeliningReceiver receiver(requestCount);
 
-    QUrl url("http://" + QtNetworkSettings::serverName() + "/cgi-bin/echo.cgi"); // a get on this = getting an empty file
+    QUrl url("http://" + httpServerName() + "/cgi-bin/echo.cgi"); // a get on this = getting an empty file
     QList<QHttpNetworkRequest*> requests;
     QList<QHttpNetworkReply*> replies;
 
@@ -901,8 +905,8 @@ void tst_QHttpNetworkConnection::getAndEverythingShouldBePipelined()
 {
     quint16 requestCount = 100;
     // use 1 connection.
-    QHttpNetworkConnection connection(1, QtNetworkSettings::serverName());
-    QUrl url("http://" + QtNetworkSettings::serverName() + "/qtest/rfc3252.txt");
+    QHttpNetworkConnection connection(1, httpServerName());
+    QUrl url("http://" + httpServerName() + "/qtest/rfc3252.txt");
     QList<QHttpNetworkRequest*> requests;
     QList<QHttpNetworkReply*> replies;
 
@@ -937,8 +941,8 @@ void tst_QHttpNetworkConnection::getAndThenDeleteObject_data()
 void tst_QHttpNetworkConnection::getAndThenDeleteObject()
 {
     // yes, this will leak if the testcase fails. I don't care. It must not fail then :P
-    QHttpNetworkConnection *connection = new QHttpNetworkConnection(QtNetworkSettings::serverName());
-    QHttpNetworkRequest request("http://" + QtNetworkSettings::serverName() + "/qtest/bigfile");
+    QHttpNetworkConnection *connection = new QHttpNetworkConnection(httpServerName());
+    QHttpNetworkRequest request("http://" + httpServerName() + "/qtest/bigfile");
     QHttpNetworkReply *reply = connection->sendRequest(request);
     reply->setDownstreamLimited(true);
 
diff --git a/tests/auto/network/access/qnetworkcookiejar/tst_qnetworkcookiejar.cpp b/tests/auto/network/access/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
index 6c3443a735..1ef2c118b9 100644
--- a/tests/auto/network/access/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
+++ b/tests/auto/network/access/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
@@ -60,12 +60,13 @@ private slots:
 class MyCookieJar: public QNetworkCookieJar
 {
 public:
-    inline QList<QNetworkCookie> allCookies() const
-        { return QNetworkCookieJar::allCookies(); }
-    inline void setAllCookies(const QList<QNetworkCookie> &cookieList)
-        { QNetworkCookieJar::setAllCookies(cookieList); }
+    ~MyCookieJar() override;
+    using QNetworkCookieJar::allCookies;
+    using QNetworkCookieJar::setAllCookies;
 };
 
+MyCookieJar::~MyCookieJar() = default;
+
 void tst_QNetworkCookieJar::getterSetter()
 {
     MyCookieJar jar;
diff --git a/tests/auto/network/access/qnetworkreply/test/test.pro b/tests/auto/network/access/qnetworkreply/test/test.pro
index 9d36352abc..4cc1f6431e 100644
--- a/tests/auto/network/access/qnetworkreply/test/test.pro
+++ b/tests/auto/network/access/qnetworkreply/test/test.pro
@@ -15,5 +15,5 @@ TESTDATA += ../empty ../rfc3252.txt ../resource ../bigfile ../*.jpg ../certs \
 
 !android:!winrt: TEST_HELPER_INSTALLS = ../echo/echo
 
+CONFIG += unsupported/testserver
 QT_TEST_SERVER_LIST = vsftpd apache2 ftp-proxy danted squid
-include($$dirname(_QMAKE_CONF_)/tests/auto/testserver.pri)
diff --git a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
index 8627a37e12..eb956bec30 100644
--- a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
+++ b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
@@ -123,7 +123,7 @@ class tst_QNetworkReply: public QObject
         if (!seedCreated) {
             seedCreated = true; // not thread-safe, but who cares
         }
-        return QString::number(QTime(0, 0, 0).msecsTo(QTime::currentTime()))
+        return QString::number(QTime::currentTime().msecsSinceStartOfDay())
             + QLatin1Char('-') + QString::number(QCoreApplication::applicationPid())
             + QLatin1Char('-') + QString::number(QRandomGenerator::global()->generate());
     }
diff --git a/tests/auto/network/kernel/qauthenticator/tst_qauthenticator.cpp b/tests/auto/network/kernel/qauthenticator/tst_qauthenticator.cpp
index 55053842dc..8cef351554 100644
--- a/tests/auto/network/kernel/qauthenticator/tst_qauthenticator.cpp
+++ b/tests/auto/network/kernel/qauthenticator/tst_qauthenticator.cpp
@@ -93,7 +93,7 @@ void tst_QAuthenticator::basicAuth()
 
     QCOMPARE(priv->phase, QAuthenticatorPrivate::Start);
 
-    QCOMPARE(priv->calculateResponse("GET", "/").constData(), QByteArray("Basic " + expectedReply).constData());
+    QCOMPARE(priv->calculateResponse("GET", "/", "").constData(), QByteArray("Basic " + expectedReply).constData());
 }
 
 void tst_QAuthenticator::ntlmAuth_data()
@@ -133,9 +133,9 @@ void tst_QAuthenticator::ntlmAuth()
     headers << qMakePair<QByteArray, QByteArray>("WWW-Authenticate", "NTLM");
     priv->parseHttpResponse(headers, /*isProxy = */ false);
     if (sso)
-        QVERIFY(priv->calculateResponse("GET", "/").startsWith("NTLM "));
+        QVERIFY(priv->calculateResponse("GET", "/", "").startsWith("NTLM "));
     else
-        QCOMPARE(priv->calculateResponse("GET", "/").constData(), "NTLM TlRMTVNTUAABAAAABYIIAAAAAAAAAAAAAAAAAAAAAAA=");
+        QCOMPARE(priv->calculateResponse("GET", "/", "").constData(), "NTLM TlRMTVNTUAABAAAABYIIAAAAAAAAAAAAAAAAAAAAAAA=");
 
     // NTLM phase 2: challenge
     headers.clear();
@@ -146,7 +146,7 @@ void tst_QAuthenticator::ntlmAuth()
     QEXPECT_FAIL("with-realm-sso", "NTLM authentication code doesn't extract the realm", Continue);
     QCOMPARE(auth.realm(), realm);
 
-    QVERIFY(priv->calculateResponse("GET", "/").startsWith("NTLM "));
+    QVERIFY(priv->calculateResponse("GET", "/", "").startsWith("NTLM "));
 }
 
 void tst_QAuthenticator::equalityOperators()
diff --git a/tests/auto/network/kernel/qhostaddress/qhostaddress.pro b/tests/auto/network/kernel/qhostaddress/qhostaddress.pro
index b5d6ea6459..d170d879e6 100644
--- a/tests/auto/network/kernel/qhostaddress/qhostaddress.pro
+++ b/tests/auto/network/kernel/qhostaddress/qhostaddress.pro
@@ -4,4 +4,4 @@ SOURCES  += tst_qhostaddress.cpp
 
 QT = core network-private testlib
 
-win32:LIBS += -lws2_32
+win32: QMAKE_USE += ws2_32
diff --git a/tests/auto/network/kernel/qhostinfo/qhostinfo.pro b/tests/auto/network/kernel/qhostinfo/qhostinfo.pro
index 3d8457dd46..d358cdf52c 100644
--- a/tests/auto/network/kernel/qhostinfo/qhostinfo.pro
+++ b/tests/auto/network/kernel/qhostinfo/qhostinfo.pro
@@ -6,6 +6,6 @@ SOURCES  += tst_qhostinfo.cpp
 requires(qtConfig(private_tests))
 QT = core-private network-private testlib
 
-win32:LIBS += -lws2_32
+win32: QMAKE_USE += ws2_32
 
 winrt: WINRT_MANIFEST.capabilities += internetClientServer
diff --git a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
index 0a130d363e..da6e02210b 100644
--- a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
+++ b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
@@ -179,7 +179,6 @@ void tst_QHostInfo::staticInformation()
 
 void tst_QHostInfo::initTestCase()
 {
-    QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
 #ifndef QT_NO_BEARERMANAGEMENT
     //start the default network
     netConfMan = new QNetworkConfigurationManager(this);
@@ -240,8 +239,6 @@ void tst_QHostInfo::lookupIPv4_data()
     QTest::addColumn<QString>("addresses");
     QTest::addColumn<int>("err");
 
-    // Test server lookup
-    QTest::newRow("lookup_01") << QtNetworkSettings::serverName() << QtNetworkSettings::serverIP().toString() << int(QHostInfo::NoError);
     QTest::newRow("empty") << "" << "" << int(QHostInfo::HostNotFound);
 
     QTest::newRow("single_ip4") << "a-single" TEST_DOMAIN << "192.0.2.1" << int(QHostInfo::NoError);
diff --git a/tests/auto/network/kernel/qnetworkdatagram/tst_qnetworkdatagram.cpp b/tests/auto/network/kernel/qnetworkdatagram/tst_qnetworkdatagram.cpp
index 5eedd1043b..cd6019090f 100644
--- a/tests/auto/network/kernel/qnetworkdatagram/tst_qnetworkdatagram.cpp
+++ b/tests/auto/network/kernel/qnetworkdatagram/tst_qnetworkdatagram.cpp
@@ -131,7 +131,7 @@ void tst_QNetworkDatagram::makeReply()
     QNetworkDatagram copy = dgram;
     copy.setData(copy.data());
     {
-        QNetworkDatagram reply = qMove(copy).makeReply("World");
+        QNetworkDatagram reply = std::move(copy).makeReply("World");
         QCOMPARE(reply.data(), QByteArray("World"));
         QCOMPARE(reply.senderAddress(), QHostAddress(localAddress));
         QCOMPARE(reply.senderPort(), localAddress.isEmpty() ? -1 : dgram.destinationPort());
diff --git a/tests/auto/network/socket/platformsocketengine/BLACKLIST b/tests/auto/network/socket/platformsocketengine/BLACKLIST
index 8e1a55995e..154c5cc5b2 100644
--- a/tests/auto/network/socket/platformsocketengine/BLACKLIST
+++ b/tests/auto/network/socket/platformsocketengine/BLACKLIST
@@ -1 +1,8 @@
+[tcpLoopbackPerformance]
+windows
+[receiveUrgentData]
+windows
+[serverTest]
+windows
+[tcpLoopbackPerformance]
 windows
diff --git a/tests/auto/network/socket/platformsocketengine/platformsocketengine.pri b/tests/auto/network/socket/platformsocketengine/platformsocketengine.pri
index 46c722deba..868439de6a 100644
--- a/tests/auto/network/socket/platformsocketengine/platformsocketengine.pri
+++ b/tests/auto/network/socket/platformsocketengine/platformsocketengine.pri
@@ -4,7 +4,7 @@ QNETWORK_SRC = $$QT_SOURCE_TREE/src/network
 
 INCLUDEPATH += $$QNETWORK_SRC
 
-win32:LIBS += -lws2_32
+win32: QMAKE_USE += ws2_32
 
 unix:qtConfig(reduce_exports) {
     SOURCES += $$QNETWORK_SRC/socket/qnativesocketengine_unix.cpp
diff --git a/tests/auto/network/socket/qhttpsocketengine/BLACKLIST b/tests/auto/network/socket/qhttpsocketengine/BLACKLIST
index 8e1a55995e..991d01dd00 100644
--- a/tests/auto/network/socket/qhttpsocketengine/BLACKLIST
+++ b/tests/auto/network/socket/qhttpsocketengine/BLACKLIST
@@ -1 +1,6 @@
+[passwordAuth]
+windows
+[downloadBigFile]
+windows
+[ensureEofTriggersNotification]
 windows
diff --git a/tests/auto/network/socket/qhttpsocketengine/qhttpsocketengine.pro b/tests/auto/network/socket/qhttpsocketengine/qhttpsocketengine.pro
index 56a4fb8aee..63f41f4eb7 100644
--- a/tests/auto/network/socket/qhttpsocketengine/qhttpsocketengine.pro
+++ b/tests/auto/network/socket/qhttpsocketengine/qhttpsocketengine.pro
@@ -10,3 +10,8 @@ MOC_DIR=tmp
 requires(qtConfig(private_tests))
 QT = core-private network-private testlib
 
+# TODO: For now linux-only, because cyrus is linux-only atm ...
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = squid danted cyrus apache2
+}
diff --git a/tests/auto/network/socket/qhttpsocketengine/tst_qhttpsocketengine.cpp b/tests/auto/network/socket/qhttpsocketengine/tst_qhttpsocketengine.cpp
index 68f3ea059b..cdc6fef663 100644
--- a/tests/auto/network/socket/qhttpsocketengine/tst_qhttpsocketengine.cpp
+++ b/tests/auto/network/socket/qhttpsocketengine/tst_qhttpsocketengine.cpp
@@ -122,7 +122,14 @@ public slots:
 
 void tst_QHttpSocketEngine::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpServerName(), 80));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::imapServerName(), 143));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif
 }
 
 void tst_QHttpSocketEngine::init()
@@ -171,7 +178,7 @@ void tst_QHttpSocketEngine::errorTest_data()
     QTest::newRow("proxy-host-not-found") << "this-host-does-not-exist." << 1080 << QString()
                                           << QString()
                                           << int(QAbstractSocket::ProxyNotFoundError);
-    QTest::newRow("proxy-connection-refused") << QtNetworkSettings::serverName() << 2 << QString()
+    QTest::newRow("proxy-connection-refused") << QtNetworkSettings::socksProxyServerName() << 2 << QString()
                                               << QString()
                                               << int(QAbstractSocket::ProxyConnectionRefusedError);
 
@@ -278,13 +285,12 @@ void tst_QHttpSocketEngine::simpleConnectToIMAP()
     QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 
-    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::serverName(), 3128));
-
-    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143));
+    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143));
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
     QVERIFY(socketDevice.waitForWrite());
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectedState);
-    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::serverIP());
+    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::imapServerIp());
     QVERIFY(!socketDevice.localAddress().isNull());
     QVERIFY(socketDevice.localPort() > 0);
 
@@ -292,10 +298,10 @@ void tst_QHttpSocketEngine::simpleConnectToIMAP()
     QVERIFY(socketDevice.waitForRead());
 
     // Read the greeting
-    qint64 available = socketDevice.bytesAvailable();
+    qint64 available = int(socketDevice.bytesAvailable());
     QVERIFY(available > 0);
     QByteArray array;
-    array.resize(available);
+    array.resize(int(available));
     QVERIFY(socketDevice.read(array.data(), array.size()) == available);
 
     // Check that the greeting is what we expect it to be
@@ -310,9 +316,9 @@ void tst_QHttpSocketEngine::simpleConnectToIMAP()
     // Wait for the response
     QVERIFY(socketDevice.waitForRead());
 
-    available = socketDevice.bytesAvailable();
+    available = int(socketDevice.bytesAvailable());
     QVERIFY(available > 0);
-    array.resize(available);
+    array.resize(int(available));
     QVERIFY(socketDevice.read(array.data(), array.size()) == available);
 
     // Check that the greeting is what we expect it to be
@@ -321,7 +327,7 @@ void tst_QHttpSocketEngine::simpleConnectToIMAP()
     // Wait for the response
     QVERIFY(socketDevice.waitForRead());
     char c;
-    QCOMPARE(socketDevice.read(&c, sizeof(c)), (qint64) -1);
+    QCOMPARE(socketDevice.read(&c, sizeof(c)), qint64(-1));
     QCOMPARE(socketDevice.error(), QAbstractSocket::RemoteHostClosedError);
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 }
@@ -335,10 +341,10 @@ void tst_QHttpSocketEngine::simpleErrorsAndStates()
         // Initialize device
         QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
 
-        socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::serverName(), 3128));
+        socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::httpProxyServerName(), 3128));
 
         QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
-        QVERIFY(!socketDevice.connectToHost(QHostAddress(QtNetworkSettings::serverName()), 8088));
+        QVERIFY(!socketDevice.connectToHost(QHostAddress(QtNetworkSettings::socksProxyServerName()), 8088));
         QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
         if (socketDevice.waitForWrite(30000)) {
             QVERIFY(socketDevice.state() == QAbstractSocket::ConnectedState ||
@@ -422,7 +428,7 @@ void tst_QHttpSocketEngine::tcpSocketBlockingTest()
     QTcpSocket socket;
 
     // Connect
-    socket.connectToHost(QtNetworkSettings::serverName(), 143);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket.waitForConnected());
     QCOMPARE(socket.state(), QTcpSocket::ConnectedState);
 
@@ -479,7 +485,7 @@ void tst_QHttpSocketEngine::tcpSocketNonBlockingTest()
     tcpSocketNonBlocking_socket = &socket;
 
     // Connect
-    socket.connectToHost(QtNetworkSettings::serverName(), 143);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket.state() == QTcpSocket::HostLookupState ||
             socket.state() == QTcpSocket::ConnectingState);
 
@@ -607,13 +613,13 @@ void tst_QHttpSocketEngine::downloadBigFile()
     connect(tmpSocket, SIGNAL(connected()), SLOT(exitLoopSlot()));
     connect(tmpSocket, SIGNAL(readyRead()), SLOT(downloadBigFileSlot()));
 
-    tmpSocket->connectToHost(QtNetworkSettings::serverName(), 80);
+    tmpSocket->connectToHost(QtNetworkSettings::httpServerName(), 80);
 
     QTestEventLoop::instance().enterLoop(30);
     if (QTestEventLoop::instance().timeout())
         QFAIL("Network operation timed out");
 
-    QByteArray hostName = QtNetworkSettings::serverName().toLatin1();
+    QByteArray hostName = QtNetworkSettings::httpServerName().toLatin1();
     QCOMPARE(tmpSocket->state(), QAbstractSocket::ConnectedState);
     QVERIFY(tmpSocket->write("GET /qtest/mediumfile HTTP/1.0\r\n") > 0);
     QVERIFY(tmpSocket->write("Host: ") > 0);
@@ -664,13 +670,13 @@ void tst_QHttpSocketEngine::passwordAuth()
     QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 
-    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::serverName(), 3128, "qsockstest", "password"));
+    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::httpProxyServerName(), 3128, "qsockstest", "password"));
 
-    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143));
+    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143));
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
     QVERIFY(socketDevice.waitForWrite());
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectedState);
-    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::serverIP());
+    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::imapServerIp());
 
     // Wait for the greeting
     QVERIFY(socketDevice.waitForRead());
diff --git a/tests/auto/network/socket/qlocalsocket/tst_qlocalsocket.cpp b/tests/auto/network/socket/qlocalsocket/tst_qlocalsocket.cpp
index 45ab275510..f53c75c6a4 100644
--- a/tests/auto/network/socket/qlocalsocket/tst_qlocalsocket.cpp
+++ b/tests/auto/network/socket/qlocalsocket/tst_qlocalsocket.cpp
@@ -552,7 +552,7 @@ void tst_QLocalSocket::sendData()
         QCOMPARE(serverSocket->state(), QLocalSocket::ConnectedState);
         QTextStream out(serverSocket);
         QTextStream in(&socket);
-        out << testLine << endl;
+        out << testLine << Qt::endl;
         bool wrote = serverSocket->waitForBytesWritten(3000);
 
         if (!socket.canReadLine()) {
@@ -877,7 +877,7 @@ public:
             QLocalSocket *serverSocket = server.nextPendingConnection();
             QVERIFY(serverSocket);
             QTextStream out(serverSocket);
-            out << testLine << endl;
+            out << testLine << Qt::endl;
             QCOMPARE(serverSocket->state(), QLocalSocket::ConnectedState);
             QVERIFY2(serverSocket->waitForBytesWritten(), serverSocket->errorString().toLatin1().constData());
             QCOMPARE(serverSocket->errorString(), QString("Unknown error"));
diff --git a/tests/auto/network/socket/qsocks5socketengine/BLACKLIST b/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
index 60526827bf..8af3cea8dc 100644
--- a/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
+++ b/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
@@ -2,6 +2,9 @@
 *
 [passwordAuth]
 *
+# QTBUG-74162
+[passwordAuth2]
+*
 [serverTest]
 windows
 [downloadBigFile]
diff --git a/tests/auto/network/socket/qsocks5socketengine/qsocks5socketengine.pro b/tests/auto/network/socket/qsocks5socketengine/qsocks5socketengine.pro
index 71ceafa133..243eab9480 100644
--- a/tests/auto/network/socket/qsocks5socketengine/qsocks5socketengine.pro
+++ b/tests/auto/network/socket/qsocks5socketengine/qsocks5socketengine.pro
@@ -11,3 +11,9 @@ MOC_DIR=tmp
 QT = core-private network-private testlib
 
 requires(qtConfig(private_tests))
+
+# Only on Linux until cyrus has been added to docker-compose-for-{windows,macOS}.yml and tested
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = danted apache2 cyrus
+}
diff --git a/tests/auto/network/socket/qsocks5socketengine/tst_qsocks5socketengine.cpp b/tests/auto/network/socket/qsocks5socketengine/tst_qsocks5socketengine.cpp
index 1212ea20e5..464054f8a6 100644
--- a/tests/auto/network/socket/qsocks5socketengine/tst_qsocks5socketengine.cpp
+++ b/tests/auto/network/socket/qsocks5socketengine/tst_qsocks5socketengine.cpp
@@ -137,7 +137,13 @@ private slots:
 
 void tst_QSocks5SocketEngine::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpServerName(), 80));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::imapServerName(), 143));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif
 }
 
 //---------------------------------------------------------------------------
@@ -293,13 +299,13 @@ void tst_QSocks5SocketEngine::simpleConnectToIMAP()
     QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 
-    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080));
+    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080));
 
-    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143));
+    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143));
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
     QVERIFY(socketDevice.waitForWrite());
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectedState);
-    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::serverIP());
+    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::imapServerIp());
 
     // Wait for the greeting
     QVERIFY(socketDevice.waitForRead());
@@ -347,10 +353,10 @@ void tst_QSocks5SocketEngine::simpleErrorsAndStates()
         // Initialize device
         QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
 
-        socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080));
+        socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080));
 
         QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
-        QVERIFY(!socketDevice.connectToHost(QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first(), 8088));
+        QVERIFY(!socketDevice.connectToHost(QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses().first(), 8088));
         QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
         if (socketDevice.waitForWrite(15000)) {
             QVERIFY(socketDevice.state() == QAbstractSocket::UnconnectedState ||
@@ -433,7 +439,7 @@ void tst_QSocks5SocketEngine::serverTest()
     // Initialize a Tcp socket
     QVERIFY(server.initialize(QAbstractSocket::TcpSocket));
 
-    QNetworkProxy proxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080);
+    QNetworkProxy proxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080);
 
     server.setProxy(proxy);
 
@@ -510,7 +516,7 @@ void tst_QSocks5SocketEngine::udpTest()
     QVERIFY(udpSocket.initialize(QAbstractSocket::UdpSocket));
     QVERIFY(udpSocket.isValid());
 
-    QNetworkProxy proxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080);
+    QNetworkProxy proxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080);
 
     udpSocket.setProxy(proxy);
 
@@ -564,7 +570,7 @@ void tst_QSocks5SocketEngine::tcpSocketBlockingTest()
     QTcpSocket socket;
 
     // Connect
-    socket.connectToHost(QtNetworkSettings::serverName(), 143);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket.waitForConnected());
     QCOMPARE(socket.state(), QTcpSocket::ConnectedState);
 
@@ -635,7 +641,7 @@ void tst_QSocks5SocketEngine::tcpSocketNonBlockingTest()
             });
 
     // Connect
-    socket.connectToHost(QtNetworkSettings::serverName(), 143);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket.state() == QTcpSocket::HostLookupState ||
             socket.state() == QTcpSocket::ConnectingState);
 
@@ -754,13 +760,13 @@ void tst_QSocks5SocketEngine::downloadBigFile()
                     << " (" << stopWatch.elapsed() << "ms)";
             });
 
-    socket.connectToHost(QtNetworkSettings::serverName(), 80);
+    socket.connectToHost(QtNetworkSettings::httpServerName(), 80);
 
     QTestEventLoop::instance().enterLoop(30);
     if (QTestEventLoop::instance().timeout())
         QFAIL("Network operation timed out");
 
-    QByteArray hostName = QtNetworkSettings::serverName().toLatin1();
+    QByteArray hostName = QtNetworkSettings::httpServerName().toLatin1();
     QCOMPARE(socket.state(), QAbstractSocket::ConnectedState);
     QVERIFY(socket.write("GET /qtest/mediumfile HTTP/1.0\r\n") > 0);
     QVERIFY(socket.write("HOST: ") > 0);
@@ -791,13 +797,13 @@ void tst_QSocks5SocketEngine::passwordAuth()
     QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 
-    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080, "qsockstest", "password"));
+    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080, "qsockstest", "password"));
 
     // Connect to imap.trolltech.com's IP
-    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143));
+    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143));
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
     QVERIFY(socketDevice.waitForWrite());
-    if (!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143)) {
+    if (!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143)) {
         qDebug("%d, %s", socketDevice.error(), socketDevice.errorString().toLatin1().constData());
     }
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectedState);
@@ -857,19 +863,19 @@ void tst_QSocks5SocketEngine::passwordAuth2()
     QVERIFY(socketDevice.initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol));
     QCOMPARE(socketDevice.state(), QAbstractSocket::UnconnectedState);
 
-    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1081));
+    socketDevice.setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1081));
     socketDevice.setReceiver(this);
 
-    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143));
+    QVERIFY(!socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143));
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectingState);
     while (socketDevice.state() == QAbstractSocket::ConnectingState) {
         QVERIFY(socketDevice.waitForWrite());
-        socketDevice.connectToHost(QtNetworkSettings::serverIP(), 143);
+        socketDevice.connectToHost(QtNetworkSettings::imapServerIp(), 143);
     }
     if (socketDevice.state() != QAbstractSocket::ConnectedState)
         qDebug("%d, %s", socketDevice.error(), socketDevice.errorString().toLatin1().constData());
     QCOMPARE(socketDevice.state(), QAbstractSocket::ConnectedState);
-    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::serverIP());
+    QCOMPARE(socketDevice.peerAddress(), QtNetworkSettings::imapServerIp());
 
     // Wait for the greeting
     QVERIFY(socketDevice.waitForRead());
diff --git a/tests/auto/network/socket/qtcpserver/test/test.pro b/tests/auto/network/socket/qtcpserver/test/test.pro
index 4491523383..7e2e60a1e3 100644
--- a/tests/auto/network/socket/qtcpserver/test/test.pro
+++ b/tests/auto/network/socket/qtcpserver/test/test.pro
@@ -1,7 +1,7 @@
 CONFIG += testcase
 SOURCES  += ../tst_qtcpserver.cpp
 
-win32:LIBS += -lws2_32
+win32: QMAKE_USE += ws2_32
 
 TARGET = ../tst_qtcpserver
 
@@ -16,3 +16,9 @@ win32 {
 QT = core network testlib
 
 MOC_DIR=tmp
+
+# Only on Linux until cyrus has been added to docker-compose-for-{windows,macOS}.yml and tested
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = danted cyrus squid ftp-proxy
+}
diff --git a/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp b/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
index 161d94d642..22ac9aa076 100644
--- a/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
+++ b/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
@@ -160,8 +160,15 @@ void tst_QTcpServer::initTestCase_data()
 
 void tst_QTcpServer::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::ftpProxyServerName(), 2121));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::imapServerName(), 143));
+#else
     if (!QtNetworkSettings::verifyTestNetworkSettings())
         QSKIP("No network test server available");
+#endif
 #ifndef QT_NO_BEARERMANAGEMENT
     QNetworkConfigurationManager man;
     networkSession = new QNetworkSession(man.defaultConfiguration(), this);
@@ -177,7 +184,7 @@ void tst_QTcpServer::init()
 #ifndef QT_NO_NETWORKPROXY
         QFETCH_GLOBAL(int, proxyType);
         if (proxyType == QNetworkProxy::Socks5Proxy) {
-            QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080));
+            QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080));
         }
 #else // !QT_NO_NETWORKPROXY
         QSKIP("No proxy support");
@@ -513,7 +520,7 @@ void tst_QTcpServer::waitForConnectionTest()
     }
 
     QTcpSocket findLocalIpSocket;
-    findLocalIpSocket.connectToHost(QtNetworkSettings::serverName(), 143);
+    findLocalIpSocket.connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(findLocalIpSocket.waitForConnected(5000));
 
     QTcpServer server;
@@ -668,16 +675,18 @@ void tst_QTcpServer::invalidProxy_data()
     QTest::addColumn<int>("port");
     QTest::addColumn<int>("expectedError");
 
-    QString fluke = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
-    QTest::newRow("ftp-proxy") << int(QNetworkProxy::FtpCachingProxy) << fluke << 143
+    const QString imapIp = QtNetworkSettings::imapServerIp().toString();
+    const QString httpProxyIp = QtNetworkSettings::httpProxyServerIp().toString();
+    const QString socksIp = QtNetworkSettings::socksProxyServerIp().toString();
+    QTest::newRow("ftp-proxy") << int(QNetworkProxy::FtpCachingProxy) << imapIp << 143
                                << int(QAbstractSocket::UnsupportedSocketOperationError);
-    QTest::newRow("http-proxy") << int(QNetworkProxy::HttpProxy) << fluke << 3128
+    QTest::newRow("http-proxy") << int(QNetworkProxy::HttpProxy) << httpProxyIp << 3128
                                 << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     QTest::newRow("no-such-host") << int(QNetworkProxy::Socks5Proxy)
                                   << "invalid.test.qt-project.org" << 1080
                                   << int(QAbstractSocket::ProxyNotFoundError);
-    QTest::newRow("socks5-on-http") << int(QNetworkProxy::Socks5Proxy) << fluke << 3128
+    QTest::newRow("socks5-on-http") << int(QNetworkProxy::Socks5Proxy) << httpProxyIp << 3128
                                     << int(QAbstractSocket::SocketTimeoutError);
 }
 
@@ -740,48 +749,48 @@ void tst_QTcpServer::proxyFactory_data()
 
     // tests that do get to listen
 
-    proxyList << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080);
+    proxyList << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080);
     QTest::newRow("socks5")
         << proxyList << proxyList.at(0)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3128)
-              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3128)
+              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080);
     QTest::newRow("cachinghttp+socks5")
         << proxyList << proxyList.at(1)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121)
-              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3128)
-              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121)
+              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3128)
+              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080);
     QTest::newRow("ftp+cachinghttp+socks5")
         << proxyList << proxyList.at(2)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     // tests that fail to listen
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::serverName(), 3128);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::httpProxyServerName(), 3128);
     QTest::newRow("http")
         << proxyList << proxyList.at(0)
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3128);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3128);
     QTest::newRow("cachinghttp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121);
     QTest::newRow("ftp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121)
-              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3128);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121)
+              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3128);
     QTest::newRow("ftp+cachinghttp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
diff --git a/tests/auto/network/socket/qtcpsocket/test/test.pro b/tests/auto/network/socket/qtcpsocket/test/test.pro
index 337e75b372..4c07b1ec66 100644
--- a/tests/auto/network/socket/qtcpsocket/test/test.pro
+++ b/tests/auto/network/socket/qtcpsocket/test/test.pro
@@ -2,8 +2,8 @@ CONFIG += testcase
 
 QT = core-private network-private testlib
 SOURCES += ../tst_qtcpsocket.cpp
-win32:LIBS += -lws2_32
 
+win32: QMAKE_USE += ws2_32
 TARGET = tst_qtcpsocket
 
 win32 {
@@ -15,3 +15,9 @@ win32 {
 } else {
     DESTDIR = ../
 }
+
+# Only on Linux until cyrus has been added to docker-compose-for-{windows,macOS}.yml and tested
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = danted squid apache2 ftp-proxy vsftpd iptables cyrus
+}
diff --git a/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp b/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
index c473230246..abe9845213 100644
--- a/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
+++ b/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
@@ -317,7 +317,7 @@ tst_QTcpSocket::tst_QTcpSocket()
     connect(earlyConstructedSockets->endPoints[1], SIGNAL(bytesWritten(qint64)), this, SLOT(earlySocketBytesSent(qint64)));
     earlyConstructedSockets->endPoints[1]->write("hello work");
 
-    firstFailInfo.setAddresses(QList<QHostAddress>() << QHostAddress("224.0.0.0") << QtNetworkSettings::serverIP());
+    firstFailInfo.setAddresses(QList<QHostAddress>() << QHostAddress("224.0.0.0") << QtNetworkSettings::httpServerIp());
 }
 
 void tst_QTcpSocket::initTestCase_data()
@@ -326,7 +326,6 @@ void tst_QTcpSocket::initTestCase_data()
     QTest::addColumn<int>("proxyType");
     QTest::addColumn<bool>("ssl");
 
-    qDebug() << QtNetworkSettings::serverName();
     QTest::newRow("WithoutProxy") << false << 0 << false;
     //QTest::newRow("WithSocks5Proxy") << true << int(Socks5Proxy) << false; ### temporarily disabled, QTBUG-38385
     //QTest::newRow("WithSocks5ProxyAuth") << true << int(Socks5Proxy | AuthBasic) << false; ### temporarily disabled, QTBUG-38385
@@ -352,7 +351,17 @@ void tst_QTcpSocket::initTestCase_data()
 
 void tst_QTcpSocket::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpServerName(), 80));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::imapServerName(), 143));
+     //QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::firewallServerName(), 1357));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::ftpServerName(), 21));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::ftpProxyServerName(), 2121));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif
 }
 
 void tst_QTcpSocket::init()
@@ -361,30 +370,33 @@ void tst_QTcpSocket::init()
     if (setProxy) {
 #ifndef QT_NO_NETWORKPROXY
         QFETCH_GLOBAL(int, proxyType);
-        QList<QHostAddress> addresses = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses();
-        QVERIFY2(addresses.count() > 0, "failed to get ip address for test server");
-        QString fluke = addresses.first().toString();
+        QList<QHostAddress> socks5Addresses = QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses();
+        QList<QHostAddress> httpProxyAddresses = QHostInfo::fromName(QtNetworkSettings::httpProxyServerName()).addresses();
+        QVERIFY2(socks5Addresses.count() > 0, "failed to get ip address for SOCKS5 proxy server");
+        QVERIFY2(httpProxyAddresses.count() > 0, "failed to get ip address for HTTP proxy server");
+        QString socks5Address = socks5Addresses.first().toString();
+        QString httpProxyAddress = httpProxyAddresses.first().toString();
         QNetworkProxy proxy;
 
         switch (proxyType) {
         case Socks5Proxy:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, fluke, 1080);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socks5Address, 1080);
             break;
 
         case Socks5Proxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, fluke, 1081);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socks5Address, 1081);
             break;
 
         case HttpProxy | NoAuth:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3128);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddress, 3128);
             break;
 
         case HttpProxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3129);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddress, 3129);
             break;
 
         case HttpProxy | AuthNtlm:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3130);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddress, 3130);
             break;
         }
         QNetworkProxy::setApplicationProxy(proxy);
@@ -644,8 +656,8 @@ void tst_QTcpSocket::bind()
 void tst_QTcpSocket::bindThenResolveHost_data()
 {
     QTest::addColumn<QString>("hostName");
-    QTest::newRow("ip-literal") << QtNetworkSettings::serverIP().toString();
-    QTest::newRow("name") << QtNetworkSettings::serverName();
+    QTest::newRow("ip-literal") << QtNetworkSettings::httpServerIp().toString();
+    QTest::newRow("name") << QtNetworkSettings::httpServerName();
     QTest::newRow("first-fail") << firstFailName;
 }
 
@@ -715,7 +727,7 @@ void tst_QTcpSocket::setSocketDescriptor()
 #ifdef Q_OS_WIN
     // need the dummy to ensure winsock is started
     QTcpSocket *dummy = newSocket();
-    dummy->connectToHost(QtNetworkSettings::serverName(), 143);
+    dummy->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(dummy->waitForConnected());
 
     SOCKET sock = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
@@ -737,7 +749,7 @@ void tst_QTcpSocket::setSocketDescriptor()
     QCOMPARE(socket->socketDescriptor(), (qintptr)sock);
 
     qt_qhostinfo_clear_cache(); //avoid the HostLookupState being skipped due to address being in cache from previous test.
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     QCOMPARE(socket->state(), QTcpSocket::HostLookupState);
     QCOMPARE(socket->socketDescriptor(), (qintptr)sock);
     QVERIFY(socket->waitForConnected(10000));
@@ -758,7 +770,7 @@ void tst_QTcpSocket::socketDescriptor()
     QTcpSocket *socket = newSocket();
 
     QCOMPARE(socket->socketDescriptor(), (qintptr)-1);
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->state() == QAbstractSocket::HostLookupState ||
             socket->state() == QAbstractSocket::ConnectingState);
     QVERIFY(socket->waitForConnected(10000));
@@ -775,7 +787,7 @@ void tst_QTcpSocket::blockingIMAP()
     QTcpSocket *socket = newSocket();
 
     // Connect
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForConnected(10000));
     QCOMPARE(socket->state(), QTcpSocket::ConnectedState);
     QVERIFY(socket->isValid());
@@ -852,6 +864,14 @@ void tst_QTcpSocket::hostNotFound()
     socket->connectToHost("nosuchserver.qt-project.org", 80);
     QVERIFY(!socket->waitForConnected());
     QCOMPARE(socket->state(), QTcpSocket::UnconnectedState);
+#ifdef QT_TEST_SERVER
+    QFETCH_GLOBAL(bool, setProxy);
+    if (setProxy) {
+        QEXPECT_FAIL("", "QTBUG-73953: The version of Squid in the docker container behaves "
+                         "differently to the one in the network testing server, returning 503 "
+                         "when we expect 404", Continue);
+    }
+#endif
     QCOMPARE(int(socket->error()), int(QTcpSocket::HostNotFoundError));
 
     delete socket;
@@ -861,8 +881,8 @@ void tst_QTcpSocket::hostNotFound()
 void tst_QTcpSocket::timeoutConnect_data()
 {
     QTest::addColumn<QString>("address");
-    QTest::newRow("host") << QtNetworkSettings::serverName();
-    QTest::newRow("ip") << QtNetworkSettings::serverIP().toString();
+    QTest::newRow("host") << QtNetworkSettings::firewallServerName();
+    QTest::newRow("ip") << QtNetworkSettings::firewallServerIp().toString();
 }
 
 void tst_QTcpSocket::timeoutConnect()
@@ -910,7 +930,7 @@ void tst_QTcpSocket::nonBlockingIMAP()
     nonBlockingIMAP_socket = socket;
 
     // Connect
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->state() == QTcpSocket::HostLookupState ||
             socket->state() == QTcpSocket::ConnectingState);
 
@@ -1036,7 +1056,7 @@ void tst_QTcpSocket::delayedClose()
     connect(socket, SIGNAL(connected()), SLOT(nonBlockingIMAP_connected()));
     connect(socket, SIGNAL(disconnected()), SLOT(exitLoopSlot()));
 
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
 
     enterLoop(30);
     if (timeout())
@@ -1082,7 +1102,7 @@ QByteArray tst_QTcpSocket::expectedReplyIMAP()
 void tst_QTcpSocket::fetchExpectedReplyIMAP()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY2(socket->waitForConnected(10000), qPrintable(socket->errorString()));
     QVERIFY2(socket->state() == QTcpSocket::ConnectedState, qPrintable(socket->errorString()));
 
@@ -1101,7 +1121,7 @@ void tst_QTcpSocket::fetchExpectedReplyIMAP()
 void tst_QTcpSocket::partialRead()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForConnected(10000));
     QCOMPARE(socket->state(), QTcpSocket::ConnectedState);
     char buf[512];
@@ -1125,7 +1145,7 @@ void tst_QTcpSocket::partialRead()
 void tst_QTcpSocket::unget()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForConnected(10000));
     QCOMPARE(socket->state(), QTcpSocket::ConnectedState);
     char buf[512];
@@ -1162,7 +1182,7 @@ void tst_QTcpSocket::readRegularFile_readyRead()
 void tst_QTcpSocket::readAllAfterClose()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     connect(socket, SIGNAL(readyRead()), SLOT(readRegularFile_readyRead()));
     enterLoop(10);
     if (timeout())
@@ -1202,7 +1222,7 @@ void tst_QTcpSocket::openCloseOpenClose()
 
         QCOMPARE(socket->state(), QTcpSocket::UnconnectedState);
 
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         QVERIFY(socket->waitForConnected(10000));
         socket->close();
     }
@@ -1225,7 +1245,7 @@ void tst_QTcpSocket::connectDisconnectConnectDisconnect()
         QCOMPARE(int(socket->peerPort()), 0);
         QCOMPARE(socket->peerAddress(), QHostAddress());
 
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         QVERIFY(socket->waitForReadyRead(10000));
         QCOMPARE(QString::fromLatin1(socket->read(4)), QString("* OK"));
 
@@ -1429,7 +1449,7 @@ void tst_QTcpSocket::disconnectWhileLookingUp()
 
     // just connect and disconnect, then make sure nothing weird happened
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 21);
+    socket->connectToHost(QtNetworkSettings::ftpServerName(), 21);
 
     // check that connect is in progress
     QVERIFY(socket->state() != QAbstractSocket::UnconnectedState);
@@ -1477,7 +1497,7 @@ void tst_QTcpSocket::downloadBigFile()
     connect(tmpSocket, SIGNAL(readyRead()), SLOT(downloadBigFileSlot()));
     connect(tmpSocket, SIGNAL(disconnected()), SLOT(exitLoopSlot()));
 
-    tmpSocket->connectToHost(QtNetworkSettings::serverName(), 80);
+    tmpSocket->connectToHost(QtNetworkSettings::httpServerName(), 80);
 
     enterLoop(30);
     if (timeout()) {
@@ -1486,7 +1506,7 @@ void tst_QTcpSocket::downloadBigFile()
         QFAIL("Network operation timed out");
     }
 
-    QByteArray hostName = QtNetworkSettings::serverName().toLatin1();
+    QByteArray hostName = QtNetworkSettings::httpServerName().toLatin1();
     QCOMPARE(tmpSocket->state(), QAbstractSocket::ConnectedState);
     QVERIFY(tmpSocket->write("GET /qtest/mediumfile HTTP/1.0\r\n") > 0);
     QVERIFY(tmpSocket->write("HOST: ") > 0);
@@ -1552,7 +1572,7 @@ void tst_QTcpSocket::downloadBigFileSlot()
 void tst_QTcpSocket::readLine()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForConnected(5000));
 
     while (!socket->canReadLine())
@@ -1601,7 +1621,7 @@ void tst_QTcpSocket::readLine()
 void tst_QTcpSocket::readLineString()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForReadyRead(10000));
 
     QByteArray arr = socket->readLine();
@@ -1614,7 +1634,7 @@ void tst_QTcpSocket::readLineString()
 void tst_QTcpSocket::readChunks()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     QVERIFY(socket->waitForConnected(10000));
     QVERIFY(socket->waitForReadyRead(5000));
 
@@ -1634,7 +1654,7 @@ void tst_QTcpSocket::readChunks()
 void tst_QTcpSocket::waitForBytesWritten()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     QVERIFY(socket->waitForConnected(10000));
 
     socket->write("GET / HTTP/1.0\r\n\r\n");
@@ -1652,7 +1672,7 @@ void tst_QTcpSocket::waitForBytesWrittenMinusOne()
     QSKIP("QTBUG-24451 - indefinite wait may hang");
 #endif
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     QVERIFY(socket->waitForConnected(10000));
 
     socket->write("GET / HTTP/1.0\r\n\r\n");
@@ -1667,7 +1687,7 @@ void tst_QTcpSocket::waitForBytesWrittenMinusOne()
 void tst_QTcpSocket::waitForReadyRead()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     socket->write("GET / HTTP/1.0\r\n\r\n");
     QVERIFY(socket->waitForReadyRead(5000));
     delete socket;
@@ -1680,7 +1700,7 @@ void tst_QTcpSocket::waitForReadyReadMinusOne()
     QSKIP("QTBUG-24451 - indefinite wait may hang");
 #endif
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     socket->write("GET / HTTP/1.0\r\n\r\n");
     QVERIFY(socket->waitForReadyRead(-1));
     delete socket;
@@ -1693,7 +1713,7 @@ void tst_QTcpSocket::flush()
     socket->flush();
 
     connect(socket, SIGNAL(connected()), SLOT(exitLoopSlot()));
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     enterLoop(60);
     QVERIFY(socket->isOpen());
 
@@ -1710,7 +1730,7 @@ void tst_QTcpSocket::flush()
 void tst_QTcpSocket::synchronousApi()
 {
     QTcpSocket *ftpSocket = newSocket();
-    ftpSocket->connectToHost(QtNetworkSettings::serverName(), 21);
+    ftpSocket->connectToHost(QtNetworkSettings::ftpServerName(), 21);
     ftpSocket->write("QUIT\r\n");
     QVERIFY(ftpSocket->waitForDisconnected(10000));
     QVERIFY(ftpSocket->bytesAvailable() > 0);
@@ -1757,10 +1777,10 @@ void tst_QTcpSocket::recursiveReadyRead()
 
     QSignalSpy spy(testSocket, SIGNAL(readyRead()));
 
-    testSocket->connectToHost(QtNetworkSettings::serverName(), 143);
+    testSocket->connectToHost(QtNetworkSettings::imapServerName(), 143);
     enterLoop(30);
     QVERIFY2(!timeout(),
-            "Timed out when connecting to QtNetworkSettings::serverName().");
+            "Timed out when connecting to QtNetworkSettings::imapServerName().");
 
     enterLoop(30);
     QVERIFY2(!timeout(),
@@ -1794,7 +1814,7 @@ void tst_QTcpSocket::recursiveReadyReadSlot()
 void tst_QTcpSocket::atEnd()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 21);
+    socket->connectToHost(QtNetworkSettings::ftpServerName(), 21);
 
     QVERIFY(socket->waitForReadyRead(15000));
     QTextStream stream(socket);
@@ -1802,9 +1822,15 @@ void tst_QTcpSocket::atEnd()
     QString greeting = stream.readLine();
     QVERIFY(stream.atEnd());
 
+#ifdef QT_TEST_SERVER
+    // Test server must use some vsFTPd 3.x.x version
+    QVERIFY2(greeting.length() == sizeof("220 (vsFTPd 3.x.x)")-1, qPrintable(greeting));
+    QVERIFY2(greeting.startsWith("220 (vsFTPd 3."), qPrintable(greeting));
+#else
     // Test server must use some vsFTPd 2.x.x version
     QVERIFY2(greeting.length() == sizeof("220 (vsFTPd 2.x.x)")-1, qPrintable(greeting));
     QVERIFY2(greeting.startsWith("220 (vsFTPd 2."), qPrintable(greeting));
+#endif
     QVERIFY2(greeting.endsWith(QLatin1Char(')')), qPrintable(greeting));
 
     delete socket;
@@ -1835,7 +1861,7 @@ protected:
         connect(socket, SIGNAL(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)),
                 SLOT(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)), Qt::DirectConnection);
 
-        socket->connectToHost(QtNetworkSettings::serverName(), 21);
+        socket->connectToHost(QtNetworkSettings::ftpServerName(), 21);
         socket->write("QUIT\r\n");
         exec();
 
@@ -1909,7 +1935,7 @@ void tst_QTcpSocket::waitForReadyReadInASlot()
     tmpSocket = socket;
     connect(socket, SIGNAL(connected()), this, SLOT(waitForReadyReadInASlotSlot()));
 
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     socket->write("GET / HTTP/1.0\r\n\r\n");
 
     enterLoop(30);
@@ -2073,7 +2099,7 @@ void tst_QTcpSocket::waitForConnectedInHostLookupSlot()
     timer.start(15000);
 
     connect(tmpSocket, SIGNAL(hostFound()), this, SLOT(hostLookupSlot()));
-    tmpSocket->connectToHost(QtNetworkSettings::serverName(), 143);
+    tmpSocket->connectToHost(QtNetworkSettings::imapServerName(), 143);
 
     // only execute the loop if not already connected
     if (tmpSocket->state() != QAbstractSocket::ConnectedState)
@@ -2128,7 +2154,7 @@ public slots:
     inline void doIt()
     {
         attemptedToConnect = true;
-        sock->connectToHost(QtNetworkSettings::serverName(), 80);
+        sock->connectToHost(QtNetworkSettings::httpServerName(), 80);
 
 #if defined(Q_OS_MAC)
         pthread_yield_np();
@@ -2179,7 +2205,7 @@ void tst_QTcpSocket::readyReadSignalsAfterWaitForReadyRead()
     QSignalSpy readyReadSpy(socket, SIGNAL(readyRead()));
 
     // Connect
-    socket->connectToHost(QtNetworkSettings::serverName(), 143);
+    socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
 
     // Wait for the read
     QVERIFY(socket->waitForReadyRead(10000));
@@ -2315,7 +2341,7 @@ void tst_QTcpSocket::localAddressEmptyOnBSD()
 void tst_QTcpSocket::zeroAndMinusOneReturns()
 {
     QTcpSocket *socket = newSocket();
-    socket->connectToHost(QtNetworkSettings::serverName(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 80);
     socket->write("GET / HTTP/1.0\r\nConnection: keep-alive\r\n\r\n");
     QVERIFY(socket->waitForReadyRead(15000));
 
@@ -2376,7 +2402,7 @@ void tst_QTcpSocket::connectionRefused()
     connect(socket, SIGNAL(error(QAbstractSocket::SocketError)),
             &QTestEventLoop::instance(), SLOT(exitLoop()));
 
-    socket->connectToHost(QtNetworkSettings::serverName(), 144);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 144);
 
     enterLoop(10);
     disconnect(socket, SIGNAL(error(QAbstractSocket::SocketError)),
@@ -2523,7 +2549,7 @@ void tst_QTcpSocket::moveToThread0()
     {
         // Case 1: Moved after connecting, before waiting for connection.
         QTcpSocket *socket = newSocket();;
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         socket->moveToThread(0);
         QVERIFY(socket->waitForConnected(5000));
         socket->write("XXX LOGOUT\r\n");
@@ -2535,7 +2561,7 @@ void tst_QTcpSocket::moveToThread0()
         // Case 2: Moved before connecting
         QTcpSocket *socket = newSocket();
         socket->moveToThread(0);
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         QVERIFY(socket->waitForConnected(5000));
         socket->write("XXX LOGOUT\r\n");
         QVERIFY(socket->waitForBytesWritten(5000));
@@ -2545,7 +2571,7 @@ void tst_QTcpSocket::moveToThread0()
     {
         // Case 3: Moved after writing, while waiting for bytes to be written.
         QTcpSocket *socket = newSocket();
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         QVERIFY(socket->waitForConnected(5000));
         socket->write("XXX LOGOUT\r\n");
         socket->moveToThread(0);
@@ -2556,7 +2582,7 @@ void tst_QTcpSocket::moveToThread0()
     {
         // Case 4: Moved after writing, while waiting for response.
         QTcpSocket *socket = newSocket();
-        socket->connectToHost(QtNetworkSettings::serverName(), 143);
+        socket->connectToHost(QtNetworkSettings::imapServerName(), 143);
         QVERIFY(socket->waitForConnected(5000));
         socket->write("XXX LOGOUT\r\n");
         QVERIFY(socket->waitForBytesWritten(5000));
@@ -2687,7 +2713,7 @@ void tst_QTcpSocket::taskQtBug5799ConnectionErrorWaitForConnected()
     // use waitForConnected, e.g. this should use a synchronous select() on the OS level
 
     QTcpSocket socket;
-    socket.connectToHost(QtNetworkSettings::serverName(), 12346);
+    socket.connectToHost(QtNetworkSettings::httpServerName(), 12346);
     QTime timer;
     timer.start();
     socket.waitForConnected(10000);
@@ -2707,7 +2733,7 @@ void tst_QTcpSocket::taskQtBug5799ConnectionErrorEventLoop()
     // This testcase uses an event loop
     QTcpSocket socket;
     connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), &QTestEventLoop::instance(), SLOT(exitLoop()));
-    socket.connectToHost(QtNetworkSettings::serverName(), 12346);
+    socket.connectToHost(QtNetworkSettings::httpServerName(), 12346);
 
     QTestEventLoop::instance().enterLoop(10);
     QVERIFY2(!QTestEventLoop::instance().timeout(), "Connection to closed port timed out instead of refusing, something is wrong");
@@ -2720,7 +2746,7 @@ void tst_QTcpSocket::taskQtBug7054TimeoutErrorResetting()
 {
     QTcpSocket *socket = newSocket();
 
-    socket->connectToHost(QtNetworkSettings::serverName(), 443);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
     QVERIFY(socket->waitForConnected(5*1000));
     QCOMPARE(socket->error(), QAbstractSocket::UnknownSocketError);
 
@@ -2749,10 +2775,12 @@ void tst_QTcpSocket::invalidProxy_data()
     QTest::addColumn<bool>("failsAtConnect");
     QTest::addColumn<int>("expectedError");
 
-    QString fluke = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
-    QTest::newRow("ftp-proxy") << int(QNetworkProxy::FtpCachingProxy) << fluke << 21 << true
+    const QString ftpAddress = QtNetworkSettings::ftpServerIp().toString();
+    const QString httpProxyAddress = QtNetworkSettings::httpProxyServerIp().toString();
+    const QString socksProxyAddress = QtNetworkSettings::socksProxyServerIp().toString();
+    QTest::newRow("ftp-proxy") << int(QNetworkProxy::FtpCachingProxy) << ftpAddress << 21 << true
                                << int(QAbstractSocket::UnsupportedSocketOperationError);
-    QTest::newRow("http-caching-proxy") << int(QNetworkProxy::HttpCachingProxy) << fluke << 3128 << true
+    QTest::newRow("http-caching-proxy") << int(QNetworkProxy::HttpCachingProxy) << httpProxyAddress << 3128 << true
                                         << int(QAbstractSocket::UnsupportedSocketOperationError);
     QTest::newRow("no-such-host-socks5") << int(QNetworkProxy::Socks5Proxy)
                                          << "this-host-will-never-exist.qt-project.org" << 1080 << false
@@ -2760,9 +2788,9 @@ void tst_QTcpSocket::invalidProxy_data()
     QTest::newRow("no-such-host-http") << int(QNetworkProxy::HttpProxy)
                                        << "this-host-will-never-exist.qt-project.org" << 3128 << false
                                        << int(QAbstractSocket::ProxyNotFoundError);
-    QTest::newRow("http-on-socks5") << int(QNetworkProxy::HttpProxy) << fluke << 1080 << false
+    QTest::newRow("http-on-socks5") << int(QNetworkProxy::HttpProxy) << socksProxyAddress << 1080 << false
                                     << int(QAbstractSocket::ProxyConnectionClosedError);
-    QTest::newRow("socks5-on-http") << int(QNetworkProxy::Socks5Proxy) << fluke << 3128 << false
+    QTest::newRow("socks5-on-http") << int(QNetworkProxy::Socks5Proxy) << httpProxyAddress << 3128 << false
                                     << int(QAbstractSocket::SocketTimeoutError);
 }
 
@@ -2781,7 +2809,7 @@ void tst_QTcpSocket::invalidProxy()
 
     QTcpSocket *socket = newSocket();
     socket->setProxy(proxy);
-    socket->connectToHost(QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString(), 80);
+    socket->connectToHost(QtNetworkSettings::httpServerIp().toString(), 80);
 
     if (failsAtConnect) {
         QCOMPARE(socket->state(), QAbstractSocket::UnconnectedState);
@@ -2833,48 +2861,48 @@ void tst_QTcpSocket::proxyFactory_data()
 
     // tests that do connect
 
-    proxyList << QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::serverName(), 3129);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpProxy, QtNetworkSettings::httpProxyServerName(), 3129);
     QTest::newRow("http")
         << proxyList << proxyList.at(0)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1081);
+    proxyList << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1081);
     QTest::newRow("socks5")
         << proxyList << proxyList.at(0)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3129)
-              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1081);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3129)
+              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1081);
     QTest::newRow("cachinghttp+socks5")
         << proxyList << proxyList.at(1)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121)
-              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3129)
-              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1081);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121)
+              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3129)
+              << QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1081);
     QTest::newRow("ftp+cachinghttp+socks5")
         << proxyList << proxyList.at(2)
         << false << int(QAbstractSocket::UnknownSocketError);
 
     // tests that fail to connect
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3129);
+    proxyList << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3129);
     QTest::newRow("cachinghttp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121);
     QTest::newRow("ftp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
 
     proxyList.clear();
-    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::serverName(), 2121)
-              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::serverName(), 3129);
+    proxyList << QNetworkProxy(QNetworkProxy::FtpCachingProxy, QtNetworkSettings::ftpProxyServerName(), 2121)
+              << QNetworkProxy(QNetworkProxy::HttpCachingProxy, QtNetworkSettings::httpProxyServerName(), 3129);
     QTest::newRow("ftp+cachinghttp")
         << proxyList << QNetworkProxy()
         << true << int(QAbstractSocket::UnsupportedSocketOperationError);
@@ -2895,7 +2923,7 @@ void tst_QTcpSocket::proxyFactory()
     QNetworkProxyFactory::setApplicationProxyFactory(factory);
 
     QTcpSocket *socket = newSocket();
-    QString host = QtNetworkSettings::serverName();
+    QString host = QtNetworkSettings::httpServerName();
     socket->connectToHost(host, 80);
 
     // Verify that the factory was called properly
diff --git a/tests/auto/network/socket/qudpsocket/test/test.pro b/tests/auto/network/socket/qudpsocket/test/test.pro
index e856776ddc..969e4d72cf 100644
--- a/tests/auto/network/socket/qudpsocket/test/test.pro
+++ b/tests/auto/network/socket/qudpsocket/test/test.pro
@@ -17,3 +17,9 @@ win32 {
 }
 
 TARGET = tst_qudpsocket
+
+# Only on Linux until 'echo' has been added to docker-compose-for-{windows,macOS}.yml and tested
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = danted echo
+}
diff --git a/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp b/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
index 707c1acf48..a4b22cb000 100644
--- a/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
+++ b/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
@@ -235,6 +235,7 @@ void tst_QUdpSocket::initTestCase_data()
     // hack: we only enable the Socks5 over UDP tests on the old
     // test server, because they fail on the new one. See QTBUG-35490
     bool newTestServer = true;
+#ifndef QT_TEST_SERVER
     QTcpSocket socket;
     socket.connectToHost(QtNetworkSettings::serverName(), 22);
     if (socket.waitForConnected(10000)) {
@@ -244,6 +245,7 @@ void tst_QUdpSocket::initTestCase_data()
             newTestServer = false;
         socket.disconnectFromHost();
     }
+#endif
 
     QTest::addColumn<bool>("setProxy");
     QTest::addColumn<int>("proxyType");
@@ -257,8 +259,13 @@ void tst_QUdpSocket::initTestCase_data()
 
 void tst_QUdpSocket::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+     QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::echoServerName(), 7));
+#else
     if (!QtNetworkSettings::verifyTestNetworkSettings())
         QSKIP("No network test server available");
+#endif
     allAddresses = QNetworkInterface::allAddresses();
     m_skipUnsupportedIPv6Tests = shouldSkipIpv6TestsForBrokenSetsockopt();
 
@@ -300,7 +307,7 @@ void tst_QUdpSocket::init()
 #if QT_CONFIG(socks5)
         QFETCH_GLOBAL(int, proxyType);
         if (proxyType == QNetworkProxy::Socks5Proxy) {
-            QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::serverName(), 1080));
+            QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080));
         }
 #else
         QSKIP("No proxy support");
@@ -981,7 +988,7 @@ void tst_QUdpSocket::writeDatagramToNonExistingPeer_data()
     QTest::addColumn<bool>("bind");
     QTest::addColumn<QHostAddress>("peerAddress");
     QHostAddress localhost(QHostAddress::LocalHost);
-    QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::serverName()).addresses());
+    QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses());
     if (serverAddresses.isEmpty())
         return;
 
@@ -995,7 +1002,7 @@ void tst_QUdpSocket::writeDatagramToNonExistingPeer_data()
 
 void tst_QUdpSocket::writeDatagramToNonExistingPeer()
 {
-    if (QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().isEmpty())
+    if (QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses().isEmpty())
         QFAIL("Could not find test server address");
     QFETCH(bool, bind);
     QFETCH(QHostAddress, peerAddress);
@@ -1015,7 +1022,7 @@ void tst_QUdpSocket::writeToNonExistingPeer_data()
 {
     QTest::addColumn<QHostAddress>("peerAddress");
     QHostAddress localhost(QHostAddress::LocalHost);
-    QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::serverName()).addresses());
+    QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses());
     if (serverAddresses.isEmpty())
         return;
 
@@ -1028,7 +1035,7 @@ void tst_QUdpSocket::writeToNonExistingPeer_data()
 void tst_QUdpSocket::writeToNonExistingPeer()
 {
     QSKIP("Connected-mode UDP sockets and their behaviour are erratic");
-    if (QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().isEmpty())
+    if (QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses().isEmpty())
         QFAIL("Could not find test server address");
     QFETCH(QHostAddress, peerAddress);
     quint16 peerPort = 34534;
@@ -1551,7 +1558,7 @@ void tst_QUdpSocket::echo_data()
 void tst_QUdpSocket::echo()
 {
     QFETCH(bool, connect);
-    QHostInfo info = QHostInfo::fromName(QtNetworkSettings::serverName());
+    QHostInfo info = QHostInfo::fromName(QtNetworkSettings::echoServerName());
     QVERIFY(info.addresses().count());
     QHostAddress remote = info.addresses().first();
 
diff --git a/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp b/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
index 88be13f41d..0c8535f2de 100644
--- a/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
+++ b/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
@@ -814,7 +814,7 @@ void tst_QSslCertificate::task256066toPem()
 
 void tst_QSslCertificate::nulInCN()
 {
-#if defined(QT_SECURETRANSPORT) || defined(Q_OS_WINRT) || QT_CONFIG(schannel)
+#if QT_CONFIG(securetransport) || defined(Q_OS_WINRT) || QT_CONFIG(schannel)
     QSKIP("Generic QSslCertificatePrivate fails this test");
 #endif
     QList<QSslCertificate> certList =
@@ -833,7 +833,7 @@ void tst_QSslCertificate::nulInCN()
 
 void tst_QSslCertificate::nulInSan()
 {
-#if defined(QT_SECURETRANSPORT) || defined(Q_OS_WINRT) || QT_CONFIG(schannel)
+#if QT_CONFIG(securetransport) || defined(Q_OS_WINRT) || QT_CONFIG(schannel)
     QSKIP("Generic QSslCertificatePrivate fails this test");
 #endif
     QList<QSslCertificate> certList =
@@ -968,7 +968,7 @@ void tst_QSslCertificate::subjectAndIssuerAttributes()
 
 void tst_QSslCertificate::verify()
 {
-#ifdef QT_SECURETRANSPORT
+#if QT_CONFIG(securetransport)
     QSKIP("Not implemented in SecureTransport");
 #endif
     QList<QSslError> errors;
diff --git a/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes128.pem b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes128.pem
new file mode 100644
index 0000000000..1a8751874e
--- /dev/null
+++ b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes128.pem
@@ -0,0 +1,30 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: AES-128-CBC,A2A6F6BA67CFB2A992BA4FD3A0984B59
+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-----END RSA PRIVATE KEY-----
diff --git a/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes192.pem b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes192.pem
new file mode 100644
index 0000000000..db74877a5a
--- /dev/null
+++ b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes192.pem
@@ -0,0 +1,30 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: AES-192-CBC,B408346ADE790F8CF0C902A4F0712B34
+
+SwzPBGxmwW2JddOyug1LrWjlZn8siSp5yezjK1x/z2+J2r/vvH8OjGnA387tFtae
+WVTmhT1ixQXMDI1UJuKx0gzrG2449c+BUVe2VXFPLZ2ocSgoXbBpVkfhEqtLAn91
+MSOpQMxvobQKltKhxgXGvuBJwhwfT7yK5HamohFGbxLUh4Dh+NBXwoYH4Qt+kM7C
+kV8VIKvkr/QAL/SRxNoY8rVResPgYvUjdtiGSNZ6CZhNRu42Q2FqbH817cE0NDsN
+il/xvWu4T/6VY1KpwMad/v6BhO45EeKz7YjbF/3Y5jj2JV9r45uf79lM9htMBw0d
+L+Cc3YHeFffgU8NZo0+iUoroXcb7mjWNmgYksbkaZPbLG383YXAXwbkQS7zDMVIx
+QhXn9w+78hNmEV/7PQ8mGXHEFwnfSR05phXoj8IyL5v0grRMA2dsjfxCgfQjH+kc
+Miwr5pD/Flw175OpPFCb2qladdTKoIWiVShspbteoRC0EuiWHzkl5z6Tneyb/sam
+yduLmSYD+RA6OBgUPY95Xm4AowlFFsuV/fxYZ53rFf4cZn9Z6VBVmvIEmapV7CtB
+JzyIVclocwM0ag5u/esdEt/jndJq9chZlIsDS30y3gP6Rlqk5mj90DAs98l28FVG
+WY9jP0babk8mxjYCcnAy7ikUc0D+vJVO6OTmfO3dkGjLpMBM6OlvfhN/0qeXrMDI
+nU2qOshUrVna2kRe6FrcvosFTD8wvQ1/BjmCp1iWWsGdc/q1BqI3pgOlgq3TYfl6
+iUJoji3V2iexH+GPkHsrs+kii1clsO2tgIP7doIooSVkcTsRTHHxKeeHn3qL2028
+pTvieIFD/T4biLZ9Q8sX3XWiHNmXZlCx8lX8MDjTavWES8gY4H5Sr6FjRMy1qpZY
+5w1aAyJ9YZ0J/jLPmFxt8mWgqHPiPlrQkryBBE3l1MSQ/hCEwlf9dP8a+ayINfd7
+3yNkHKjZ5fuoA+TZUQb/fyVM5o1zJ8ML01PaXWrMEgr3b36QL+Ivo2Rpnp9FpwuH
+E405cwCEy5fNSyhHFqqatCbsPl80nkP8OpW6jdWvNy9u0Ap9PS+MbHGq/pfkaazl
+fbKGOckrENzEXi6Uj/yY/0sMtbTJuC70n09X3edHyhl/RJPPUoNnwDM5W1FHfS3r
+qqSOl/r3y5pEErRdBpR4wEgB7DCLBALGDPfXNAAga4ez/Z2X9Zj234+4ZbUzWoLN
+1ER0QYyxLN7oz1qMA15J7nRyRIhDXNlXjyISOqy26T6/d4X0M+6RhNWfT/MHAjJ8
+6ogoGlQUITV3gPO4R6+FGZMF4R6zZXuKVtOXyzRwWnCLfo4gzBHmq+5mmCjGWRq8
+rSSkc6334bYuZOaEoR5EM5sh6ewkjSDPRrKR7EHO02YbiscyT/99TwT5pdIOPK3u
+2T6/40fSmCWQyBLuWxV9CMD+rB/q8Ja5KisEseck7PgI2pMmHfiD5yQXhKR9eDrB
+sRqZxjgRYxup+/0CIBshL8s1R88xelhXyIKyqFfVudM09yAZxEJLQhpDZ27g45ea
+FMX2Ve+ah2NjYBgzAhwKouWg5RyWb6X99NsrCEU75fn/ek86LGs3FxRgB4Uv7Udv
+-----END RSA PRIVATE KEY-----
diff --git a/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes256.pem b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes256.pem
new file mode 100644
index 0000000000..3d96b3166e
--- /dev/null
+++ b/tests/auto/network/ssl/qsslkey/rsa-with-passphrase-aes256.pem
@@ -0,0 +1,30 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: AES-256-CBC,0F2F4695C8FFA35F4076FA0273A3A4E3
+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-----END RSA PRIVATE KEY-----
diff --git a/tests/auto/network/ssl/qsslkey/tst_qsslkey.cpp b/tests/auto/network/ssl/qsslkey/tst_qsslkey.cpp
index 28476fce5b..f94756ed73 100644
--- a/tests/auto/network/ssl/qsslkey/tst_qsslkey.cpp
+++ b/tests/auto/network/ssl/qsslkey/tst_qsslkey.cpp
@@ -30,6 +30,7 @@
 #include <QtTest/QtTest>
 #include <qsslkey.h>
 #include <qsslsocket.h>
+#include <QScopeGuard>
 
 #include <QtNetwork/qhostaddress.h>
 #include <QtNetwork/qnetworkproxy.h>
@@ -233,15 +234,50 @@ void tst_QSslKey::constructorHandle()
     QByteArray passphrase;
     if (QByteArray(QTest::currentDataTag()).contains("-pkcs8-"))
         passphrase = "1234";
+
     BIO* bio = q_BIO_new(q_BIO_s_mem());
     q_BIO_write(bio, pem.constData(), pem.length());
-    QSslKey key(func(bio, nullptr, nullptr, static_cast<void *>(passphrase.data())), type);
+    EVP_PKEY *origin = func(bio, nullptr, nullptr, static_cast<void *>(passphrase.data()));
+#if QT_CONFIG(opensslv11)
+    q_EVP_PKEY_up_ref(origin);
+#endif
+    QSslKey key(origin, type);
+#if !QT_CONFIG(opensslv11)
+    q_BIO_write(bio, pem.constData(), pem.length());
+    origin = func(bio, nullptr, nullptr, static_cast<void *>(passphrase.data()));
+#endif
     q_BIO_free(bio);
 
+    EVP_PKEY *handle = q_EVP_PKEY_new();
+    switch (algorithm) {
+    case QSsl::Rsa:
+        q_EVP_PKEY_set1_RSA(handle, static_cast<RSA *>(key.handle()));
+        break;
+    case QSsl::Dsa:
+        q_EVP_PKEY_set1_DSA(handle, static_cast<DSA *>(key.handle()));
+        break;
+    case QSsl::Dh:
+        q_EVP_PKEY_set1_DH(handle, static_cast<DH *>(key.handle()));
+        break;
+#ifndef OPENSSL_NO_EC
+    case QSsl::Ec:
+        q_EVP_PKEY_set1_EC_KEY(handle, static_cast<EC_KEY *>(key.handle()));
+        break;
+#endif
+    default:
+        break;
+    }
+
+    auto cleanup = qScopeGuard([origin, handle] {
+        q_EVP_PKEY_free(origin);
+        q_EVP_PKEY_free(handle);
+    });
+
     QVERIFY(!key.isNull());
     QCOMPARE(key.algorithm(), algorithm);
     QCOMPARE(key.type(), type);
     QCOMPARE(key.length(), length);
+    QCOMPARE(q_EVP_PKEY_cmp(origin, handle), 1);
 #endif
 }
 
@@ -430,15 +466,25 @@ void tst_QSslKey::toEncryptedPemOrDer()
 void tst_QSslKey::passphraseChecks_data()
 {
     QTest::addColumn<QString>("fileName");
-
-    QTest::newRow("DES") << (testDataDir + "rsa-with-passphrase-des.pem");
-    QTest::newRow("3DES") << (testDataDir + "rsa-with-passphrase-3des.pem");
-    QTest::newRow("RC2") << (testDataDir + "rsa-with-passphrase-rc2.pem");
+    QTest::addColumn<QByteArray>("passphrase");
+
+    const QByteArray pass("123");
+    const QByteArray aesPass("1234");
+
+    QTest::newRow("DES") << QString(testDataDir + "rsa-with-passphrase-des.pem") << pass;
+    QTest::newRow("3DES") << QString(testDataDir + "rsa-with-passphrase-3des.pem") << pass;
+    QTest::newRow("RC2") << QString(testDataDir + "rsa-with-passphrase-rc2.pem") << pass;
+#if (!defined(QT_NO_OPENSSL) && !defined(OPENSSL_NO_AES)) || (defined(QT_NO_OPENSSL) && QT_CONFIG(ssl))
+    QTest::newRow("AES128") << QString(testDataDir + "rsa-with-passphrase-aes128.pem") << aesPass;
+    QTest::newRow("AES192") << QString(testDataDir + "rsa-with-passphrase-aes192.pem") << aesPass;
+    QTest::newRow("AES256") << QString(testDataDir + "rsa-with-passphrase-aes256.pem") << aesPass;
+#endif // (OpenSSL && AES) || generic backend
 }
 
 void tst_QSslKey::passphraseChecks()
 {
     QFETCH(QString, fileName);
+    QFETCH(QByteArray, passphrase);
 
     QFile keyFile(fileName);
     QVERIFY(keyFile.exists());
@@ -471,7 +517,7 @@ void tst_QSslKey::passphraseChecks()
             keyFile.open(QIODevice::ReadOnly);
         else
             keyFile.reset();
-        QSslKey key(&keyFile,QSsl::Rsa,QSsl::Pem, QSsl::PrivateKey, "123");
+        QSslKey key(&keyFile,QSsl::Rsa,QSsl::Pem, QSsl::PrivateKey, passphrase);
         QVERIFY(!key.isNull()); // correct passphrase
     }
 }
@@ -516,79 +562,135 @@ void tst_QSslKey::encrypt_data()
     QTest::addColumn<QByteArray>("key");
     QTest::addColumn<QByteArray>("plainText");
     QTest::addColumn<QByteArray>("cipherText");
+    QTest::addColumn<QByteArray>("iv");
 
+    QByteArray iv("abcdefgh");
     QTest::newRow("DES-CBC, length 0")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray()
-        << QByteArray::fromHex("956585228BAF9B1F");
+        << QByteArray::fromHex("956585228BAF9B1F")
+        << iv;
     QTest::newRow("DES-CBC, length 1")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(1, 'a')
-        << QByteArray::fromHex("E6880AF202BA3C12");
+        << QByteArray::fromHex("E6880AF202BA3C12")
+        << iv;
     QTest::newRow("DES-CBC, length 2")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(2, 'a')
-        << QByteArray::fromHex("A82492386EED6026");
+        << QByteArray::fromHex("A82492386EED6026")
+        << iv;
     QTest::newRow("DES-CBC, length 3")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(3, 'a')
-        << QByteArray::fromHex("90B76D5B79519CBA");
+        << QByteArray::fromHex("90B76D5B79519CBA")
+        << iv;
     QTest::newRow("DES-CBC, length 4")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(4, 'a')
-        << QByteArray::fromHex("63E3DD6FED87052A");
+        << QByteArray::fromHex("63E3DD6FED87052A")
+        << iv;
     QTest::newRow("DES-CBC, length 5")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(5, 'a')
-        << QByteArray::fromHex("03ACDB0EACBDFA94");
+        << QByteArray::fromHex("03ACDB0EACBDFA94")
+        << iv;
     QTest::newRow("DES-CBC, length 6")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(6, 'a')
-        << QByteArray::fromHex("7D95024E42A3A88A");
+        << QByteArray::fromHex("7D95024E42A3A88A")
+        << iv;
     QTest::newRow("DES-CBC, length 7")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(7, 'a')
-        << QByteArray::fromHex("5003436B8A8E42E9");
+        << QByteArray::fromHex("5003436B8A8E42E9")
+        << iv;
     QTest::newRow("DES-CBC, length 8")
         << QSslKeyPrivate::DesCbc << QByteArray("01234567")
         << QByteArray(8, 'a')
-        << QByteArray::fromHex("E4C1F054BF5521C0A4A0FD4A2BC6C1B1");
+        << QByteArray::fromHex("E4C1F054BF5521C0A4A0FD4A2BC6C1B1")
+        << iv;
 
     QTest::newRow("DES-EDE3-CBC, length 0")
         << QSslKeyPrivate::DesEde3Cbc << QByteArray("0123456789abcdefghijklmn")
         << QByteArray()
-        << QByteArray::fromHex("3B2B4CD0B0FD495F");
+        << QByteArray::fromHex("3B2B4CD0B0FD495F")
+        << iv;
     QTest::newRow("DES-EDE3-CBC, length 8")
         << QSslKeyPrivate::DesEde3Cbc << QByteArray("0123456789abcdefghijklmn")
         << QByteArray(8, 'a')
-        << QByteArray::fromHex("F2A5A87763C54A72A3224103D90CDB03");
+        << QByteArray::fromHex("F2A5A87763C54A72A3224103D90CDB03")
+        << iv;
 
     QTest::newRow("RC2-40-CBC, length 0")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("01234")
         << QByteArray()
-        << QByteArray::fromHex("6D05D52392FF6E7A");
+        << QByteArray::fromHex("6D05D52392FF6E7A")
+        << iv;
     QTest::newRow("RC2-40-CBC, length 8")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("01234")
         << QByteArray(8, 'a')
-        << QByteArray::fromHex("75768E64C5749072A5D168F3AFEB0005");
+        << QByteArray::fromHex("75768E64C5749072A5D168F3AFEB0005")
+        << iv;
 
     QTest::newRow("RC2-64-CBC, length 0")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("01234567")
         << QByteArray()
-        << QByteArray::fromHex("ADAE6BF70F420130");
+        << QByteArray::fromHex("ADAE6BF70F420130")
+        << iv;
     QTest::newRow("RC2-64-CBC, length 8")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("01234567")
         << QByteArray(8, 'a')
-        << QByteArray::fromHex("C7BF5C80AFBE9FBEFBBB9FD935F6D0DF");
+        << QByteArray::fromHex("C7BF5C80AFBE9FBEFBBB9FD935F6D0DF")
+        << iv;
 
     QTest::newRow("RC2-128-CBC, length 0")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("012345679abcdefg")
         << QByteArray()
-        << QByteArray::fromHex("1E965D483A13C8FB");
+        << QByteArray::fromHex("1E965D483A13C8FB")
+        << iv;
     QTest::newRow("RC2-128-CBC, length 8")
         << QSslKeyPrivate::Rc2Cbc << QByteArray("012345679abcdefg")
         << QByteArray(8, 'a')
-        << QByteArray::fromHex("5AEC1A5B295660B02613454232F7DECE");
+        << QByteArray::fromHex("5AEC1A5B295660B02613454232F7DECE")
+        << iv;
+
+#if (!defined(QT_NO_OPENSSL) && !defined(OPENSSL_NO_AES)) || (defined(QT_NO_OPENSSL) && QT_CONFIG(ssl))
+    // AES needs a longer IV
+    iv = QByteArray("abcdefghijklmnop");
+    QTest::newRow("AES-128-CBC, length 0")
+        << QSslKeyPrivate::Aes128Cbc << QByteArray("012345679abcdefg")
+        << QByteArray()
+        << QByteArray::fromHex("28DE1A9AA26601C30DD2527407121D1A")
+        << iv;
+    QTest::newRow("AES-128-CBC, length 8")
+        << QSslKeyPrivate::Aes128Cbc << QByteArray("012345679abcdefg")
+        << QByteArray(8, 'a')
+        << QByteArray::fromHex("08E880B1BA916F061C1E801D7F44D0EC")
+        << iv;
+
+    QTest::newRow("AES-192-CBC, length 0")
+        << QSslKeyPrivate::Aes192Cbc << QByteArray("0123456789abcdefghijklmn")
+        << QByteArray()
+        << QByteArray::fromHex("E169E0E205CDC2BA895B7CF6097673B1")
+        << iv;
+    QTest::newRow("AES-192-CBC, length 8")
+        << QSslKeyPrivate::Aes192Cbc << QByteArray("0123456789abcdefghijklmn")
+        << QByteArray(8, 'a')
+        << QByteArray::fromHex("3A227D6A3A13237316D30AA17FF9B0A7")
+        << iv;
+
+    QTest::newRow("AES-256-CBC, length 0")
+        << QSslKeyPrivate::Aes256Cbc << QByteArray("0123456789abcdefghijklmnopqrstuv")
+        << QByteArray()
+        << QByteArray::fromHex("4BAACAA0D22199C97DE206C465B7B14A")
+        << iv;
+    QTest::newRow("AES-256-CBC, length 8")
+        << QSslKeyPrivate::Aes256Cbc << QByteArray("0123456789abcdefghijklmnopqrstuv")
+        << QByteArray(8, 'a')
+        << QByteArray::fromHex("879C8C25EC135CDF0B14490A0A7C2F67")
+        << iv;
+#endif // (OpenSSL && AES) || generic backend
 }
 
 void tst_QSslKey::encrypt()
@@ -597,7 +699,7 @@ void tst_QSslKey::encrypt()
     QFETCH(QByteArray, key);
     QFETCH(QByteArray, plainText);
     QFETCH(QByteArray, cipherText);
-    QByteArray iv("abcdefgh");
+    QFETCH(QByteArray, iv);
 
 #if defined(Q_OS_WINRT) || QT_CONFIG(schannel)
     QEXPECT_FAIL("RC2-40-CBC, length 0", "WinRT/Schannel treats RC2 as 128-bit", Abort);
diff --git a/tests/auto/network/ssl/qsslsocket/BLACKLIST b/tests/auto/network/ssl/qsslsocket/BLACKLIST
index 555822d1e6..3ecd3d9dbb 100644
--- a/tests/auto/network/ssl/qsslsocket/BLACKLIST
+++ b/tests/auto/network/ssl/qsslsocket/BLACKLIST
@@ -1,7 +1,23 @@
+[abortOnSslErrors]
+windows
+[deprecatedProtocols]
+windows
+[disabledProtocols]
+windows
+[protocol]
+windows
+[qtbug18498_peek]
+windows
+[setReadBufferSize]
+windows
+[spontaneousWrite]
+windows
+[sslErrors]
 windows
 [connectToHostEncrypted]
 osx-10.13
 [setSslConfiguration]
+windows
 osx-10.13
 [connectToHostEncryptedWithVerificationPeerName]
 osx-10.13
diff --git a/tests/auto/network/ssl/qsslsocket/certs/qt-test-server-cert.pem b/tests/auto/network/ssl/qsslsocket/certs/qt-test-server-cert.pem
new file mode 100644
index 0000000000..43c8794ce2
--- /dev/null
+++ b/tests/auto/network/ssl/qsslsocket/certs/qt-test-server-cert.pem
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/auto/network/ssl/qsslsocket/qsslsocket.pro b/tests/auto/network/ssl/qsslsocket/qsslsocket.pro
index 1260dc9410..51fcff9a8d 100644
--- a/tests/auto/network/ssl/qsslsocket/qsslsocket.pro
+++ b/tests/auto/network/ssl/qsslsocket/qsslsocket.pro
@@ -18,3 +18,10 @@ TESTDATA += certs
 DEFINES += SRCDIR=\\\"$$PWD/\\\"
 
 requires(qtConfig(private_tests))
+
+# DOCKERTODO: it's 'linux' because it requires cyrus, which
+# is linux-only for now ...
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = squid danted cyrus apache2 echo
+}
diff --git a/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp b/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
index 1c27901844..7912063bc8 100644
--- a/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
+++ b/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
@@ -310,6 +310,21 @@ Q_DECLARE_METATYPE(tst_QSslSocket::PskConnectTestType)
 
 int tst_QSslSocket::loopLevel = 0;
 
+namespace {
+
+QString httpServerCertChainPath()
+{
+    // DOCKERTODO: note how we use CA certificate on the real server. The docker container
+    // is using a different cert with a "special" CN. Check if it's important!
+#ifdef QT_TEST_SERVER
+    return tst_QSslSocket::testDataDir + QStringLiteral("certs/qt-test-server-cert.pem");
+#else
+    return tst_QSslSocket::testDataDir + QStringLiteral("certs/qt-test-server-cacert.pem");
+#endif // QT_TEST_SERVER
+}
+
+} // unnamed namespace
+
 tst_QSslSocket::tst_QSslSocket()
 {
 #ifndef QT_NO_SSL
@@ -363,8 +378,19 @@ void tst_QSslSocket::initTestCase()
     qDebug("Using SSL library %s (%ld)",
            qPrintable(QSslSocket::sslLibraryVersionString()),
            QSslSocket::sslLibraryVersionNumber());
+#ifdef QT_TEST_SERVER
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1081));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3129));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3130));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpServerName(), 443));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::imapServerName(), 993));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::echoServerName(), 13));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
-#endif
+#endif // QT_TEST_SERVER
+#endif // QT_NO_SSL
 }
 
 void tst_QSslSocket::init()
@@ -373,28 +399,29 @@ void tst_QSslSocket::init()
     if (setProxy) {
 #ifndef QT_NO_NETWORKPROXY
         QFETCH_GLOBAL(int, proxyType);
-        QString fluke = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
+        const QString socksProxyAddr = QtNetworkSettings::socksProxyServerIp().toString();
+        const QString httpProxyAddr = QtNetworkSettings::httpProxyServerIp().toString();
         QNetworkProxy proxy;
 
         switch (proxyType) {
         case Socks5Proxy:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, fluke, 1080);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksProxyAddr, 1080);
             break;
 
         case Socks5Proxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, fluke, 1081);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksProxyAddr, 1081);
             break;
 
         case HttpProxy | NoAuth:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3128);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddr, 3128);
             break;
 
         case HttpProxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3129);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddr, 3129);
             break;
 
         case HttpProxy | AuthNtlm:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, fluke, 3130);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, httpProxyAddr, 3130);
             break;
         }
         QNetworkProxy::setApplicationProxy(proxy);
@@ -555,7 +582,7 @@ void tst_QSslSocket::simpleConnect()
     connect(&socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(exitLoop()));
 
     // Start connecting
-    socket.connectToHost(QtNetworkSettings::serverName(), 993);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 993);
     QCOMPARE(socket.state(), QAbstractSocket::HostLookupState);
     enterLoop(10);
 
@@ -610,7 +637,7 @@ void tst_QSslSocket::simpleConnectWithIgnore()
     connect(&socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(exitLoop()));
 
     // Start connecting
-    socket.connectToHost(QtNetworkSettings::serverName(), 993);
+    socket.connectToHost(QtNetworkSettings::imapServerName(), 993);
     QVERIFY(socket.state() != QAbstractSocket::UnconnectedState); // something must be in progress
     enterLoop(10);
 
@@ -642,7 +669,7 @@ void tst_QSslSocket::sslErrors_data()
     QString name = QtNetworkSettings::serverLocalName();
     QTest::newRow(qPrintable(name)) << name << 993;
 
-    name = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
+    name = QtNetworkSettings::httpServerIp().toString();
     QTest::newRow(qPrintable(name)) << name << 443;
 }
 
@@ -659,7 +686,20 @@ void tst_QSslSocket::sslErrors()
     QSignalSpy sslErrorsSpy(socket.data(), SIGNAL(sslErrors(QList<QSslError>)));
     QSignalSpy peerVerifyErrorSpy(socket.data(), SIGNAL(peerVerifyError(QSslError)));
 
-    socket->connectToHostEncrypted(host, port);
+#ifdef QT_TEST_SERVER
+    // On the old test server we had the same certificate on different services.
+    // The idea of this test is to fail with 'HostNameMismatch', when we're using
+    // either serverLocalName() or IP address directly. With Docker we connect
+    // to IMAP server, and we have to connect using imapServerName() and passing
+    // 'host' as peerVerificationName to the overload of connectToHostEncrypted().
+    if (port == 993) {
+        socket->connectToHostEncrypted(QtNetworkSettings::imapServerName(), port, host);
+    } else
+#endif // QT_TEST_SERVER
+    {
+        socket->connectToHostEncrypted(host, port);
+    }
+
     if (!socket->waitForConnected())
         QSKIP("Skipping flaky test - See QTBUG-29941");
     socket->waitForEncrypted(10000);
@@ -739,13 +779,13 @@ void tst_QSslSocket::connectToHostEncrypted()
     socket->setProtocol(QSsl::SslProtocol::TlsV1_1);
 #endif
     this->socket = socket.data();
-    QVERIFY(socket->addCaCertificates(testDataDir + "certs/qt-test-server-cacert.pem"));
+    QVERIFY(socket->addCaCertificates(httpServerCertChainPath()));
 #ifdef QSSLSOCKET_CERTUNTRUSTED_WORKAROUND
     connect(socket.data(), SIGNAL(sslErrors(QList<QSslError>)),
             this, SLOT(untrustedWorkaroundSlot(QList<QSslError>)));
 #endif
 
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     // This should pass unconditionally when using fluke's CA certificate.
     // or use untrusted certificate workaround
@@ -758,7 +798,7 @@ void tst_QSslSocket::connectToHostEncrypted()
 
     QCOMPARE(socket->mode(), QSslSocket::SslClientMode);
 
-    socket->connectToHost(QtNetworkSettings::serverName(), 13);
+    socket->connectToHost(QtNetworkSettings::echoServerName(), 13);
 
     QCOMPARE(socket->mode(), QSslSocket::UnencryptedMode);
 
@@ -776,14 +816,18 @@ void tst_QSslSocket::connectToHostEncryptedWithVerificationPeerName()
 #endif
     this->socket = socket.data();
 
-    socket->addCaCertificates(testDataDir + "certs/qt-test-server-cacert.pem");
+    socket->addCaCertificates(httpServerCertChainPath());
 #ifdef QSSLSOCKET_CERTUNTRUSTED_WORKAROUND
     connect(socket.data(), SIGNAL(sslErrors(QList<QSslError>)),
             this, SLOT(untrustedWorkaroundSlot(QList<QSslError>)));
 #endif
 
-    // connect to the server with its local name, but use the full name for verification.
-    socket->connectToHostEncrypted(QtNetworkSettings::serverLocalName(), 443, QtNetworkSettings::serverName());
+#ifdef QT_TEST_SERVER
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443, QtNetworkSettings::httpServerName());
+#else
+    // Connect to the server with its local name, but use the full name for verification.
+    socket->connectToHostEncrypted(QtNetworkSettings::serverLocalName(), 443, QtNetworkSettings::httpServerName());
+#endif
 
     // This should pass unconditionally when using fluke's CA certificate.
     QFETCH_GLOBAL(bool, setProxy);
@@ -805,7 +849,7 @@ void tst_QSslSocket::sessionCipher()
     this->socket = socket.data();
     connect(socket.data(), SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
     QVERIFY(socket->sessionCipher().isNull());
-    socket->connectToHost(QtNetworkSettings::serverName(), 443 /* https */);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 443 /* https */);
     QVERIFY2(socket->waitForConnected(10000), qPrintable(socket->errorString()));
     QVERIFY(socket->sessionCipher().isNull());
     socket->startClientEncryption();
@@ -840,12 +884,12 @@ void tst_QSslSocket::localCertificate()
     // values. This test should just run the codepath inside qsslsocket_openssl.cpp
 
     QSslSocketPtr socket = newSocket();
-    QList<QSslCertificate> localCert = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> localCert = QSslCertificate::fromPath(httpServerCertChainPath());
     socket->setCaCertificates(localCert);
     socket->setLocalCertificate(testDataDir + "certs/fluke.cert");
     socket->setPrivateKey(testDataDir + "certs/fluke.key");
 
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && !socket->waitForEncrypted(10000))
         QSKIP("Skipping flaky test - See QTBUG-29941");
@@ -868,8 +912,7 @@ void tst_QSslSocket::peerCertificateChain()
 
     QSslSocketPtr socket = newSocket();
     this->socket = socket.data();
-
-    QList<QSslCertificate> caCertificates = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> caCertificates = QSslCertificate::fromPath(httpServerCertChainPath());
     QCOMPARE(caCertificates.count(), 1);
     socket->addCaCertificates(caCertificates);
 #ifdef QSSLSOCKET_CERTUNTRUSTED_WORKAROUND
@@ -877,7 +920,7 @@ void tst_QSslSocket::peerCertificateChain()
             this, SLOT(untrustedWorkaroundSlot(QList<QSslError>)));
 #endif
 
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QCOMPARE(socket->mode(), QSslSocket::UnencryptedMode);
     QVERIFY(socket->peerCertificateChain().isEmpty());
     QFETCH_GLOBAL(bool, setProxy);
@@ -906,7 +949,7 @@ void tst_QSslSocket::peerCertificateChain()
     QVERIFY(socket->waitForDisconnected());
 
     // now do it again back to the original server
-    socket->connectToHost(QtNetworkSettings::serverName(), 443);
+    socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
     QCOMPARE(socket->mode(), QSslSocket::UnencryptedMode);
     QVERIFY(socket->peerCertificateChain().isEmpty());
     QVERIFY2(socket->waitForConnected(10000), qPrintable(socket->errorString()));
@@ -945,13 +988,13 @@ void tst_QSslSocket::privateKeyOpaque()
     // values. This test should just run the codepath inside qsslsocket_openssl.cpp
 
     QSslSocketPtr socket = newSocket();
-    QList<QSslCertificate> localCert = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> localCert = QSslCertificate::fromPath(httpServerCertChainPath());
     socket->setCaCertificates(localCert);
     socket->setLocalCertificate(testDataDir + "certs/fluke.cert");
     socket->setPrivateKey(QSslKey(reinterpret_cast<Qt::HANDLE>(pkey)));
 
     socket->setPeerVerifyMode(QSslSocket::QueryPeer);
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && !socket->waitForEncrypted(10000))
         QSKIP("Skipping flaky test - See QTBUG-29941");
@@ -965,7 +1008,7 @@ void tst_QSslSocket::protocol()
 
     QSslSocketPtr socket = newSocket();
     this->socket = socket.data();
-    QList<QSslCertificate> certs = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> certs = QSslCertificate::fromPath(httpServerCertChainPath());
 
     socket->setCaCertificates(certs);
 #ifdef QSSLSOCKET_CERTUNTRUSTED_WORKAROUND
@@ -979,13 +1022,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server allows TLSV1.
         socket->setProtocol(QSsl::TlsV1_0);
         QCOMPARE(socket->protocol(), QSsl::TlsV1_0);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::TlsV1_0);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::TlsV1_0);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         QVERIFY2(socket->waitForConnected(), qPrintable(socket->errorString()));
         socket->startClientEncryption();
         if (setProxy && !socket->waitForEncrypted())
@@ -998,13 +1041,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server probably doesn't allow TLSV1.1
         socket->setProtocol(QSsl::TlsV1_1);
         QCOMPARE(socket->protocol(), QSsl::TlsV1_1);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::TlsV1_1);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::TlsV1_1);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         QVERIFY2(socket->waitForConnected(), qPrintable(socket->errorString()));
         socket->startClientEncryption();
         if (setProxy && !socket->waitForEncrypted())
@@ -1016,13 +1059,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server probably doesn't allows TLSV1.2
         socket->setProtocol(QSsl::TlsV1_2);
         QCOMPARE(socket->protocol(), QSsl::TlsV1_2);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::TlsV1_2);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::TlsV1_2);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         QVERIFY2(socket->waitForConnected(), qPrintable(socket->errorString()));
         socket->startClientEncryption();
         if (setProxy && !socket->waitForEncrypted())
@@ -1036,13 +1079,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server probably doesn't allow TLSV1.3
         socket->setProtocol(QSsl::TlsV1_3);
         QCOMPARE(socket->protocol(), QSsl::TlsV1_3);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("TLS 1.3 is not supported by the test server or the test is flaky - see QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::TlsV1_3);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::TlsV1_3);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         QVERIFY2(socket->waitForConnected(), qPrintable(socket->errorString()));
         socket->startClientEncryption();
         if (setProxy && !socket->waitForEncrypted())
@@ -1055,13 +1098,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server allows SSLV3, so it allows AnyProtocol.
         socket->setProtocol(QSsl::AnyProtocol);
         QCOMPARE(socket->protocol(), QSsl::AnyProtocol);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::AnyProtocol);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::AnyProtocol);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         QVERIFY2(socket->waitForConnected(), qPrintable(socket->errorString()));
         socket->startClientEncryption();
         if (setProxy && !socket->waitForEncrypted())
@@ -1073,13 +1116,13 @@ void tst_QSslSocket::protocol()
         // qt-test-server allows TlsV1, so it allows TlsV1SslV3
         socket->setProtocol(QSsl::TlsV1SslV3);
         QCOMPARE(socket->protocol(), QSsl::TlsV1SslV3);
-        socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+        socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForEncrypted())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         QCOMPARE(socket->protocol(), QSsl::TlsV1SslV3);
         socket->abort();
         QCOMPARE(socket->protocol(), QSsl::TlsV1SslV3);
-        socket->connectToHost(QtNetworkSettings::serverName(), 443);
+        socket->connectToHost(QtNetworkSettings::httpServerName(), 443);
         if (setProxy && !socket->waitForConnected())
             QSKIP("Skipping flaky test - See QTBUG-29941");
         socket->startClientEncryption();
@@ -1491,7 +1534,7 @@ void tst_QSslSocket::setSslConfiguration_data()
     QTest::newRow("empty") << QSslConfiguration() << false;
     QSslConfiguration conf = QSslConfiguration::defaultConfiguration();
     QTest::newRow("default") << conf << false; // does not contain test server cert
-    QList<QSslCertificate> testServerCert = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> testServerCert = QSslCertificate::fromPath(httpServerCertChainPath());
     conf.setCaCertificates(testServerCert);
     QTest::newRow("set-root-cert") << conf << true;
     conf.setProtocol(QSsl::SecureProtocols);
@@ -1510,7 +1553,7 @@ void tst_QSslSocket::setSslConfiguration()
     socket->setProtocol(QSsl::SslProtocol::TlsV1_1);
 #endif
     this->socket = socket.data();
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QFETCH(bool, works);
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && (socket->waitForEncrypted(10000) != works))
@@ -1530,7 +1573,7 @@ void tst_QSslSocket::waitForEncrypted()
     this->socket = socket.data();
 
     connect(this->socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && !socket->waitForEncrypted(10000))
@@ -1549,7 +1592,7 @@ void tst_QSslSocket::waitForEncryptedMinusOne()
     this->socket = socket.data();
 
     connect(this->socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && !socket->waitForEncrypted(-1))
@@ -1565,7 +1608,7 @@ void tst_QSslSocket::waitForConnectedEncryptedReadyRead()
     this->socket = socket.data();
 
     connect(this->socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 993);
+    socket->connectToHostEncrypted(QtNetworkSettings::imapServerName(), 993);
 
     QVERIFY2(socket->waitForConnected(10000), qPrintable(socket->errorString()));
     QFETCH_GLOBAL(bool, setProxy);
@@ -1597,7 +1640,7 @@ void tst_QSslSocket::addDefaultCaCertificate()
     // Reset the global CA chain
     QSslSocket::setDefaultCaCertificates(QSslSocket::systemCaCertificates());
 
-    QList<QSslCertificate> flukeCerts = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> flukeCerts = QSslCertificate::fromPath(httpServerCertChainPath());
     QCOMPARE(flukeCerts.size(), 1);
     QList<QSslCertificate> globalCerts = QSslSocket::defaultCaCertificates();
     QVERIFY(!globalCerts.contains(flukeCerts.first()));
@@ -1968,7 +2011,7 @@ void tst_QSslSocket::setReadBufferSize_task_250027()
     QSslSocketPtr socket = newSocket();
     socket->setReadBufferSize(1000); // limit to 1 kb/sec
     socket->ignoreSslErrors();
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     socket->ignoreSslErrors();
     QVERIFY2(socket->waitForConnected(10*1000), qPrintable(socket->errorString()));
     if (setProxy && !socket->waitForEncrypted(10*1000))
@@ -1981,7 +2024,7 @@ void tst_QSslSocket::setReadBufferSize_task_250027()
     // provoke a response by sending a request
     socket->write("GET /qtest/fluke.gif HTTP/1.0\n"); // this file is 27 KB
     socket->write("Host: ");
-    socket->write(QtNetworkSettings::serverName().toLocal8Bit().constData());
+    socket->write(QtNetworkSettings::httpServerName().toLocal8Bit().constData());
     socket->write("\n");
     socket->write("Connection: close\n");
     socket->write("\n");
@@ -2096,7 +2139,7 @@ protected:
 
         // delayed reading data
         QTest::qSleep(100);
-        if (!socket->waitForReadyRead(2000))
+        if (!socket->waitForReadyRead(2000) && socket->bytesAvailable() == 0)
             return;             // error
         socket->readAll();
         dataReadSemaphore.release();
@@ -2167,7 +2210,7 @@ void tst_QSslSocket::waitForMinusOne()
     socket.write("How are you doing?");
     QVERIFY(socket.bytesToWrite() != 0);
     QVERIFY(socket.waitForBytesWritten(-1));
-    QVERIFY(server.dataReadSemaphore.tryAcquire(1, 2000));
+    QVERIFY(server.dataReadSemaphore.tryAcquire(1, 2500));
 
     // third verification: it should wait for 100 ms:
     QVERIFY(socket.waitForReadyRead(-1));
@@ -2232,7 +2275,7 @@ void tst_QSslSocket::verifyMode()
     socket.setPeerVerifyMode(QSslSocket::VerifyPeer);
     QCOMPARE(socket.peerVerifyMode(), QSslSocket::VerifyPeer);
 
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     if (socket.waitForEncrypted())
         QSKIP("Skipping flaky test - See QTBUG-29941");
 
@@ -2271,7 +2314,7 @@ void tst_QSslSocket::verifyDepth()
 void tst_QSslSocket::disconnectFromHostWhenConnecting()
 {
     QSslSocketPtr socket = newSocket();
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 993);
+    socket->connectToHostEncrypted(QtNetworkSettings::imapServerName(), 993);
     socket->ignoreSslErrors();
     socket->write("XXXX LOGOUT\r\n");
     QAbstractSocket::SocketState state = socket->state();
@@ -2300,7 +2343,7 @@ void tst_QSslSocket::disconnectFromHostWhenConnecting()
 void tst_QSslSocket::disconnectFromHostWhenConnected()
 {
     QSslSocketPtr socket = newSocket();
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 993);
+    socket->connectToHostEncrypted(QtNetworkSettings::imapServerName(), 993);
     socket->ignoreSslErrors();
     if (!socket->waitForEncrypted(5000))
         QSKIP("Skipping flaky test - See QTBUG-29941");
@@ -2387,13 +2430,13 @@ void tst_QSslSocket::resetProxy()
     // make sure the connection works, and then set a nonsense proxy, and then
     // make sure it does not work anymore
     QSslSocket socket;
-    socket.addCaCertificates(testDataDir + "certs/qt-test-server-cacert.pem");
+    socket.addCaCertificates(httpServerCertChainPath());
     socket.setProxy(goodProxy);
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QVERIFY2(socket.waitForConnected(10000), qPrintable(socket.errorString()));
     socket.abort();
     socket.setProxy(badProxy);
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QVERIFY(! socket.waitForConnected(10000));
 
     // don't forget to login
@@ -2406,13 +2449,13 @@ void tst_QSslSocket::resetProxy()
     // set the nonsense proxy and make sure the connection does not work,
     // and then set the right proxy and make sure it works
     QSslSocket socket2;
-    socket2.addCaCertificates(testDataDir + "certs/qt-test-server-cacert.pem");
+    socket2.addCaCertificates(httpServerCertChainPath());
     socket2.setProxy(badProxy);
-    socket2.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket2.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QVERIFY(! socket2.waitForConnected(10000));
     socket2.abort();
     socket2.setProxy(goodProxy);
-    socket2.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket2.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QVERIFY2(socket2.waitForConnected(10000), qPrintable(socket.errorString()));
 #endif // QT_NO_NETWORKPROXY
 }
@@ -2425,7 +2468,7 @@ void tst_QSslSocket::ignoreSslErrorsList_data()
     // construct the list of errors that we will get with the SSL handshake and that we will ignore
     QList<QSslError> expectedSslErrors;
     // fromPath gives us a list of certs, but it actually only contains one
-    QList<QSslCertificate> certs = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    QList<QSslCertificate> certs = QSslCertificate::fromPath(httpServerCertChainPath());
     QSslError rightError(FLUKE_CERTIFICATE_ERROR, certs.at(0));
     QSslError wrongError(FLUKE_CERTIFICATE_ERROR);
 
@@ -2456,7 +2499,7 @@ void tst_QSslSocket::ignoreSslErrorsList()
     QFETCH(int, expectedSslErrorSignalCount);
     QSignalSpy sslErrorsSpy(&socket, SIGNAL(error(QAbstractSocket::SocketError)));
 
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     bool expectEncryptionSuccess = (expectedSslErrorSignalCount == 0);
     if (socket.waitForEncrypted(10000) != expectEncryptionSuccess)
@@ -2487,7 +2530,7 @@ void tst_QSslSocket::ignoreSslErrorsListWithSlot()
             this, SLOT(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)));
     connect(&socket, SIGNAL(sslErrors(QList<QSslError>)),
             this, SLOT(ignoreErrorListSlot(QList<QSslError>)));
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     QFETCH(int, expectedSslErrorSignalCount);
     bool expectEncryptionSuccess = (expectedSslErrorSignalCount == 0);
@@ -2529,14 +2572,14 @@ void tst_QSslSocket::readFromClosedSocket()
     socket->setProtocol(QSsl::SslProtocol::TlsV1_1);
 #endif
     socket->ignoreSslErrors();
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     socket->ignoreSslErrors();
     socket->waitForConnected();
     socket->waitForEncrypted();
     // provoke a response by sending a request
     socket->write("GET /qtest/fluke.gif HTTP/1.1\n");
     socket->write("Host: ");
-    socket->write(QtNetworkSettings::serverName().toLocal8Bit().constData());
+    socket->write(QtNetworkSettings::httpServerName().toLocal8Bit().constData());
     socket->write("\n");
     socket->write("\n");
     socket->waitForBytesWritten();
@@ -2560,7 +2603,7 @@ void tst_QSslSocket::writeBigChunk()
     this->socket = socket.data();
 
     connect(this->socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
 
     QByteArray data;
     data.resize(1024*1024*10); // 10 MB
@@ -2719,7 +2762,9 @@ void tst_QSslSocket::resume_data()
     QTest::newRow("DoNotIgnoreErrors") << false << QList<QSslError>() << false;
     QTest::newRow("ignoreAllErrors") << true << QList<QSslError>() << true;
 
-    QList<QSslCertificate> certs = QSslCertificate::fromPath(testDataDir + "certs/qt-test-server-cacert.pem");
+    // Note, httpServerCertChainPath() it's ... because we use the same certificate on
+    // different services. We'll be actually connecting to IMAP server.
+    QList<QSslCertificate> certs = QSslCertificate::fromPath(httpServerCertChainPath());
     QSslError rightError(FLUKE_CERTIFICATE_ERROR, certs.at(0));
     QSslError wrongError(FLUKE_CERTIFICATE_ERROR);
     errorsList.append(wrongError);
@@ -2752,7 +2797,7 @@ void tst_QSslSocket::resume()
             this, SLOT(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)));
     connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), &QTestEventLoop::instance(), SLOT(exitLoop()));
 
-    socket.connectToHostEncrypted(QtNetworkSettings::serverName(), 993);
+    socket.connectToHostEncrypted(QtNetworkSettings::imapServerName(), 993);
     QTestEventLoop::instance().enterLoop(10);
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && QTestEventLoop::instance().timeout())
@@ -3255,14 +3300,14 @@ void tst_QSslSocket::verifyClientCertificate_data()
 
 void tst_QSslSocket::verifyClientCertificate()
 {
-#ifdef QT_SECURETRANSPORT
+#if QT_CONFIG(securetransport)
     // We run both client and server on the same machine,
     // this means, client can update keychain with client's certificates,
     // and server later will use the same certificates from the same
     // keychain thus making tests fail (wrong number of certificates,
     // success instead of failure etc.).
     QSKIP("This test can not work with Secure Transport");
-#endif
+#endif // QT_CONFIG(securetransport)
 #ifdef Q_OS_WINRT
     QSKIP("Server-side encryption is not implemented on WinRT.");
 #endif
@@ -3344,7 +3389,7 @@ void tst_QSslSocket::verifyClientCertificate()
 
 void tst_QSslSocket::readBufferMaxSize()
 {
-#if defined(QT_SECURETRANSPORT) || QT_CONFIG(schannel)
+#if QT_CONFIG(securetransport) || QT_CONFIG(schannel)
     // QTBUG-55170:
     // SecureTransport back-end was ignoring read-buffer
     // size limit, resulting (potentially) in a constantly
@@ -3401,7 +3446,7 @@ void tst_QSslSocket::readBufferMaxSize()
     QCOMPARE(client->bytesAvailable() + readSoFar, message.size());
 #else
     // Not needed, QSslSocket works correctly with other back-ends.
-#endif
+#endif // QT_CONFIG(securetransport) || QT_CONFIG(schannel)
 }
 
 void tst_QSslSocket::setEmptyDefaultConfiguration() // this test should be last, as it has some side effects
@@ -3418,7 +3463,7 @@ void tst_QSslSocket::setEmptyDefaultConfiguration() // this test should be last,
     socket = client.data();
 
     connect(socket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(ignoreErrorSlot()));
-    socket->connectToHostEncrypted(QtNetworkSettings::serverName(), 443);
+    socket->connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy && socket->waitForEncrypted(4000))
         QSKIP("Skipping flaky test - See QTBUG-29941");
@@ -4127,7 +4172,7 @@ void tst_QSslSocket::forwardReadChannelFinished()
     });
     connect(&socket, &QSslSocket::readChannelFinished,
             &QTestEventLoop::instance(), &QTestEventLoop::exitLoop);
-    socket.connectToHostEncrypted(QtNetworkSettings::serverLocalName(), 443);
+    socket.connectToHostEncrypted(QtNetworkSettings::httpServerName(), 443);
     enterLoop(10);
     QVERIFY(readChannelFinishedSpy.count());
 }
diff --git a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/qsslsocket_onDemandCertificates_member.pro b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/qsslsocket_onDemandCertificates_member.pro
index 05755ff606..8585a3c861 100644
--- a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/qsslsocket_onDemandCertificates_member.pro
+++ b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/qsslsocket_onDemandCertificates_member.pro
@@ -17,3 +17,9 @@ win32 {
 DEFINES += SRCDIR=\\\"$$PWD/\\\"
 
 requires(qtConfig(private_tests))
+
+# DOCKERTODO: linux, docker is disabled on macOS/Windows.
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = squid danted
+}
diff --git a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/tst_qsslsocket_onDemandCertificates_member.cpp b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/tst_qsslsocket_onDemandCertificates_member.cpp
index 25c2701f69..4199c0f465 100644
--- a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/tst_qsslsocket_onDemandCertificates_member.cpp
+++ b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_member/tst_qsslsocket_onDemandCertificates_member.cpp
@@ -102,7 +102,15 @@ void tst_QSslSocket_onDemandCertificates_member::initTestCase_data()
 
 void tst_QSslSocket_onDemandCertificates_member::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1081));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3129));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3130));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif // QT_TEST_SERVER
 }
 
 void tst_QSslSocket_onDemandCertificates_member::init()
@@ -110,28 +118,29 @@ void tst_QSslSocket_onDemandCertificates_member::init()
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy) {
         QFETCH_GLOBAL(int, proxyType);
-        QString testServer = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
+        const auto socksAddr = QtNetworkSettings::socksProxyServerIp().toString();
+        const auto squidAddr = QtNetworkSettings::httpProxyServerIp().toString();
         QNetworkProxy proxy;
 
         switch (proxyType) {
         case Socks5Proxy:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, testServer, 1080);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksAddr, 1080);
             break;
 
         case Socks5Proxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, testServer, 1081);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksAddr, 1081);
             break;
 
         case HttpProxy | NoAuth:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3128);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3128);
             break;
 
         case HttpProxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3129);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3129);
             break;
 
         case HttpProxy | AuthNtlm:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3130);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3130);
             break;
         }
         QNetworkProxy::setApplicationProxy(proxy);
diff --git a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/qsslsocket_onDemandCertificates_static.pro b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/qsslsocket_onDemandCertificates_static.pro
index c345d7379f..158ecbee37 100644
--- a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/qsslsocket_onDemandCertificates_static.pro
+++ b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/qsslsocket_onDemandCertificates_static.pro
@@ -16,3 +16,9 @@ win32 {
 DEFINES += SRCDIR=\\\"$$PWD/\\\"
 
 requires(qtConfig(private_tests))
+
+#DOCKERTODO Linux, docker is disabled on macOS and Windows.
+linux {
+    CONFIG += unsupported/testserver
+    QT_TEST_SERVER_LIST = squid danted
+}
diff --git a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/tst_qsslsocket_onDemandCertificates_static.cpp b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/tst_qsslsocket_onDemandCertificates_static.cpp
index 503edc0bff..671a21b1c2 100644
--- a/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/tst_qsslsocket_onDemandCertificates_static.cpp
+++ b/tests/auto/network/ssl/qsslsocket_onDemandCertificates_static/tst_qsslsocket_onDemandCertificates_static.cpp
@@ -98,7 +98,15 @@ void tst_QSslSocket_onDemandCertificates_static::initTestCase_data()
 
 void tst_QSslSocket_onDemandCertificates_static::initTestCase()
 {
+#ifdef QT_TEST_SERVER
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1081));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3128));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3129));
+    QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::httpProxyServerName(), 3130));
+#else
     QVERIFY(QtNetworkSettings::verifyTestNetworkSettings());
+#endif // QT_TEST_SERVER
 }
 
 void tst_QSslSocket_onDemandCertificates_static::init()
@@ -106,28 +114,30 @@ void tst_QSslSocket_onDemandCertificates_static::init()
     QFETCH_GLOBAL(bool, setProxy);
     if (setProxy) {
         QFETCH_GLOBAL(int, proxyType);
-        QString testServer = QHostInfo::fromName(QtNetworkSettings::serverName()).addresses().first().toString();
+        const auto socksAddr = QtNetworkSettings::socksProxyServerIp().toString();
+        const auto squidAddr = QtNetworkSettings::httpProxyServerIp().toString();
+
         QNetworkProxy proxy;
 
         switch (proxyType) {
         case Socks5Proxy:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, testServer, 1080);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksAddr, 1080);
             break;
 
         case Socks5Proxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, testServer, 1081);
+            proxy = QNetworkProxy(QNetworkProxy::Socks5Proxy, socksAddr, 1081);
             break;
 
         case HttpProxy | NoAuth:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3128);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3128);
             break;
 
         case HttpProxy | AuthBasic:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3129);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3129);
             break;
 
         case HttpProxy | AuthNtlm:
-            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, testServer, 3130);
+            proxy = QNetworkProxy(QNetworkProxy::HttpProxy, squidAddr, 3130);
             break;
         }
         QNetworkProxy::setApplicationProxy(proxy);
diff --git a/tests/auto/other/lancelot/paintcommands.h b/tests/auto/other/lancelot/paintcommands.h
index 79bdab634a..2923502e68 100644
--- a/tests/auto/other/lancelot/paintcommands.h
+++ b/tests/auto/other/lancelot/paintcommands.h
@@ -37,6 +37,7 @@
 #include <qpixmap.h>
 #include <qbrush.h>
 #include <qhash.h>
+#include <qregexp.h>
 
 QT_FORWARD_DECLARE_CLASS(QPainter)
 #ifndef QT_NO_OPENGL
diff --git a/tests/auto/other/qaccessibility/qaccessibility.pro b/tests/auto/other/qaccessibility/qaccessibility.pro
index 3587c38e76..6f3740a24f 100644
--- a/tests/auto/other/qaccessibility/qaccessibility.pro
+++ b/tests/auto/other/qaccessibility/qaccessibility.pro
@@ -11,5 +11,6 @@ win32 {
     !winrt {
         QT += windowsuiautomation_support-private
     }
-    LIBS += -luuid -loleacc -loleaut32 -lole32
+    LIBS += -loleacc -loleaut32
+    QMAKE_USE += ole32 uuid
 }
diff --git a/tests/auto/other/qobjectrace/tst_qobjectrace.cpp b/tests/auto/other/qobjectrace/tst_qobjectrace.cpp
index 0d656e223c..22782f6b09 100644
--- a/tests/auto/other/qobjectrace/tst_qobjectrace.cpp
+++ b/tests/auto/other/qobjectrace/tst_qobjectrace.cpp
@@ -378,6 +378,10 @@ public:
         connect(timer, &QTimer::timeout, this, &DeleteReceiverRaceReceiver::onTimeout);
         timer->start(1);
     }
+    ~DeleteReceiverRaceReceiver()
+    {
+        delete receiver;
+    }
 
     void onTimeout()
     {
@@ -428,12 +432,12 @@ void tst_QObjectRace::disconnectRace()
 
         for (int i = 0; i < ThreadCount; ++i) {
             threads[i]->requestInterruption();
-            QVERIFY(threads[i]->wait(300));
+            QVERIFY(threads[i]->wait());
             delete threads[i];
         }
 
         senderThread->quit();
-        QVERIFY(senderThread->wait(300));
+        QVERIFY(senderThread->wait());
     }
 
     QCOMPARE(countedStructObjectsCount.load(), 0u);
@@ -453,11 +457,11 @@ void tst_QObjectRace::disconnectRace()
         QTest::qWait(TimeLimit);
 
         senderThread->requestInterruption();
-        QVERIFY(senderThread->wait(300));
+        QVERIFY(senderThread->wait());
 
         for (int i = 0; i < ThreadCount; ++i) {
             threads[i]->quit();
-            QVERIFY(threads[i]->wait(300));
+            QVERIFY(threads[i]->wait());
             delete threads[i];
         }
     }
diff --git a/tests/auto/other/toolsupport/tst_toolsupport.cpp b/tests/auto/other/toolsupport/tst_toolsupport.cpp
index f31a755f9e..8c129adaf3 100644
--- a/tests/auto/other/toolsupport/tst_toolsupport.cpp
+++ b/tests/auto/other/toolsupport/tst_toolsupport.cpp
@@ -126,9 +126,9 @@ void tst_toolsupport::offsets_data()
 #ifdef Q_PROCESSOR_X86
         // x86 32-bit has weird alignment rules. Refer to QtPrivate::AlignOf in
         // qglobal.h for more details.
-        data << 168 << 248;
+        data << 152 << 224;
 #else
-        data << 172 << 248;
+        data << 156 << 224;
 #endif
     }
 #endif
diff --git a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
index 08c6039e37..be0285537e 100644
--- a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
+++ b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
@@ -46,6 +46,7 @@ private slots:
     void construction();
     void moveOperator();
     void operators();
+    void qtbug_74575();
 };
 
 tst_QSqlError::tst_QSqlError()
@@ -113,6 +114,7 @@ void tst_QSqlError::construction()
    QVERIFY(!obj4.isValid());
    QCOMPARE(obj4.driverText(), QString());
    QCOMPARE(obj4.databaseText(), QString());
+   QCOMPARE(obj4.text(), QString());
    QCOMPARE(obj4.type(), QSqlError::NoError);
    QCOMPARE(obj4.number(), -1);
    QCOMPARE(obj4.nativeErrorCode(), QString());
@@ -180,6 +182,28 @@ void tst_QSqlError::operators()
    QVERIFY(error1 != error3);
 }
 
+void tst_QSqlError::qtbug_74575()
+{
+   const QString driverText(QStringLiteral("drivertext"));
+   const QString databaseText(QStringLiteral("databasetext"));
+   const QString databaseTextNewline(QStringLiteral("databasetext\n"));
+
+   QSqlError error1(driverText, databaseText,
+                  QSqlError::UnknownError, QStringLiteral("123"));
+   QCOMPARE(error1.text(), databaseText + QLatin1Char(' ') + driverText);
+
+   QSqlError error2(QString(), databaseText,
+                  QSqlError::UnknownError, QStringLiteral("123"));
+   QCOMPARE(error2.text(), databaseText);
+
+   QSqlError error3(driverText, QString(),
+                  QSqlError::UnknownError, QStringLiteral("123"));
+   QCOMPARE(error3.text(), driverText);
+
+   QSqlError error4(driverText, databaseTextNewline,
+                  QSqlError::UnknownError, QStringLiteral("123"));
+   QCOMPARE(error4.text(), databaseTextNewline + driverText);
+}
 
 QTEST_MAIN(tst_QSqlError)
 #include "tst_qsqlerror.moc"
diff --git a/tests/auto/testlib/selftests/alive/.gitignore b/tests/auto/testlib/selftests/alive/.gitignore
deleted file mode 100644
index 561285c5d0..0000000000
--- a/tests/auto/testlib/selftests/alive/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-tst_alive
diff --git a/tests/auto/testlib/selftests/alive/alive.pro b/tests/auto/testlib/selftests/alive/alive.pro
deleted file mode 100644
index bda0db2282..0000000000
--- a/tests/auto/testlib/selftests/alive/alive.pro
+++ /dev/null
@@ -1,10 +0,0 @@
-SOURCES += tst_alive.cpp
-QT = core testlib
-
-mac:CONFIG -= app_bundle
-CONFIG -= debug_and_release_target
-
-
-TARGET = alive
-
-include($$QT_SOURCE_TREE/src/testlib/selfcover.pri)
diff --git a/tests/auto/testlib/selftests/alive/qtestalive.cpp b/tests/auto/testlib/selftests/alive/qtestalive.cpp
deleted file mode 100644
index 0200f2a563..0000000000
--- a/tests/auto/testlib/selftests/alive/qtestalive.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the test suite of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:GPL-EXCEPT$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include <qcoreapplication.h>
-#include <qcoreevent.h>
-#include <qthread.h>
-
-class QTestAliveEvent: public QEvent
-{
-public:
-
-    enum { AliveEventType = QEvent::User + 422 };
-
-    explicit inline QTestAliveEvent(int aSequenceId)
-        : QEvent(QEvent::Type(AliveEventType)), seqId(aSequenceId)
-    {}
-    inline int sequenceId() const { return seqId; }
-
-private:
-    int seqId;
-};
-
-class QTestAlivePinger: public QObject
-{
-public:
-    QTestAlivePinger(QObject *receiver, QObject *parent = 0);
-    bool event(QEvent *e);
-
-protected:
-    void timerEvent(QTimerEvent *event);
-
-private:
-    QObject *rec;
-    int timerId;
-    int currentSequenceId;
-    int lastSequenceId;
-};
-
-QTestAlivePinger::QTestAlivePinger(QObject *receiver, QObject *parent)
-    : QObject(parent), rec(receiver), currentSequenceId(0), lastSequenceId(0)
-{
-    if (!rec)
-        qFatal("Null receiver object passed to QTestAlivePinger::QTestAlivePinger()");
-    timerId = startTimer(850);
-}
-
-bool QTestAlivePinger::event(QEvent *event)
-{
-    // pong received
-    if (int(event->type()) == QTestAliveEvent::AliveEventType) {
-        QTestAliveEvent *e = static_cast<QTestAliveEvent *>(event);
-        //qDebug("PONG %d received", e->sequenceId());
-        // if the events are not delivered in order, we don't care.
-        if (e->sequenceId() > lastSequenceId)
-            lastSequenceId = e->sequenceId();
-        return true;
-    }
-    return QObject::event(event);
-}
-
-void QTestAlivePinger::timerEvent(QTimerEvent *event)
-{
-    if (event->timerId() != timerId)
-        return;
-
-    if (lastSequenceId < currentSequenceId - 2) {
-        qWarning("TEST LAGS %d PINGS behind!", currentSequenceId - lastSequenceId);
-    }
-    ++currentSequenceId;
-    //qDebug("PING %d", currentSequenceId);
-    QCoreApplication::postEvent(rec, new QTestAliveEvent(currentSequenceId));
-}
-
-class QTestAlive: public QThread
-{
-public:
-    QTestAlive(QObject *parent = 0);
-    ~QTestAlive();
-    void run();
-
-    bool event(QEvent *e);
-
-private:
-    QTestAlivePinger *pinger;
-};
-
-QTestAlive::QTestAlive(QObject *parent)
-    : QThread(parent), pinger(0)
-{
-}
-
-QTestAlive::~QTestAlive()
-{
-    quit();
-    while (isRunning());
-}
-
-bool QTestAlive::event(QEvent *e)
-{
-    if (int(e->type()) == QTestAliveEvent::AliveEventType && pinger) {
-        // ping received, send back the pong
-        //qDebug("PONG %d", static_cast<QTestAliveEvent *>(e)->sequenceId());
-        QCoreApplication::postEvent(pinger,
-                new QTestAliveEvent(static_cast<QTestAliveEvent *>(e)->sequenceId()));
-        return true;
-    }
-    return QThread::event(e);
-}
-
-void QTestAlive::run()
-{
-    if (!QCoreApplication::instance())
-        qFatal("QTestAlive::run(): Cannot start QTestAlive without a QCoreApplication instance.");
-
-    QTestAlivePinger p(this);
-    pinger = &p;
-    exec();
-    pinger = 0;
-}
-
-
diff --git a/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp b/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
index 2f6d633e9d..49c08982ad 100644
--- a/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
+++ b/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
@@ -75,6 +75,17 @@ void tst_Blacklisted::xpass()
     QVERIFY2(true, "This test should BXPASS");
 }
 
+#ifndef Q_OS_WIN
+#include <signal.h>
+#include <setjmp.h>
+
+static jmp_buf state;
+static void abort_handler(int signal)
+{
+    longjmp(state, 1);
+}
+#endif
+
 void tst_Blacklisted::messages()
 {
     qWarning("This is a warning that should not appear in silent test output");
@@ -83,7 +94,15 @@ void tst_Blacklisted::messages()
     qCritical("This is a critical message that should not appear in silent test output");
     qInfo("This is an info message that should not appear in silent test output");
     QTestLog::info("This is an internal testlib info message that should not appear in silent test output", __FILE__, __LINE__);
-    qFatal("This is a fatal error message that should still appear in silent test output");
+
+#ifndef Q_OS_WIN
+    // We're testing qFatal, but we don't want to actually std::abort() !
+    auto prior = signal(SIGABRT, abort_handler);
+    if (setjmp(state))
+        signal(SIGABRT, prior);
+    else
+#endif
+        qFatal("This is a fatal error message that should still appear in silent test output");
 }
 
 QTEST_MAIN(tst_Blacklisted)
diff --git a/tests/auto/testlib/selftests/cmptest/tst_cmptest.cpp b/tests/auto/testlib/selftests/cmptest/tst_cmptest.cpp
index 8e2c7694a5..467c53088e 100644
--- a/tests/auto/testlib/selftests/cmptest/tst_cmptest.cpp
+++ b/tests/auto/testlib/selftests/cmptest/tst_cmptest.cpp
@@ -256,7 +256,7 @@ void tst_Cmptest::compare_boolfuncs()
 
 namespace {
 template <typename T>
-T *null() Q_DECL_NOTHROW { return nullptr; }
+T *null() noexcept { return nullptr; }
 }
 
 void tst_Cmptest::compare_to_nullptr()
diff --git a/tests/auto/testlib/selftests/expected_crashes_5.txt b/tests/auto/testlib/selftests/expected_crashes_5.txt
new file mode 100644
index 0000000000..088b9c5324
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_crashes_5.txt
@@ -0,0 +1,5 @@
+********* Start testing of tst_Crashes *********
+Config: Using QtTest library @INSERT_QT_VERSION_HERE@, Qt @INSERT_QT_VERSION_HERE@
+PASS   : tst_Crashes::initTestCase()
+QFATAL : tst_Crashes::crash() Received signal 11
+         Function time: ms Total time: ms
diff --git a/tests/auto/testlib/selftests/expected_float.lightxml b/tests/auto/testlib/selftests/expected_float.lightxml
index 458f2277e6..5f5114bb2e 100644
--- a/tests/auto/testlib/selftests/expected_float.lightxml
+++ b/tests/auto/testlib/selftests/expected_float.lightxml
@@ -8,15 +8,15 @@
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="doubleComparisons">
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should PASS 1]]></DataTag>
-</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 1]]></DataTag>
     <Description><![CDATA[Compared doubles are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 1]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 2]]></DataTag>
     <Description><![CDATA[Compared doubles are not the same (fuzzy compare)
@@ -428,21 +428,24 @@
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="float16Comparisons">
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should SUCCEED 1]]></DataTag>
-</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 1]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 1]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 2]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 0.0001
    Expected (operandRight): 0.0003]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 2]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 3]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
@@ -450,7 +453,187 @@
    Expected (operandRight): 99]]></Description>
 </Incident>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should SUCCEED 2]]></DataTag>
+    <DataTag><![CDATA[should PASS 3]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL 4]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.93e-05
+   Expected (operandRight): 5.87e-05]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 4]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL 5]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.94e+04
+   Expected (operandRight): 5.88e+04]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: NaN == NaN]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: NaN != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != NaN]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: NaN != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != NaN]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: inf == inf]]></DataTag>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: -inf == -inf]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != nan]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: nan != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != nan]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: nan != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != -max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: max != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -max != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != -max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): -6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: max != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -max != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): -inf]]></Description>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
diff --git a/tests/auto/testlib/selftests/expected_float.tap b/tests/auto/testlib/selftests/expected_float.tap
index 277dd2b1d4..9da51b93b3 100644
--- a/tests/auto/testlib/selftests/expected_float.tap
+++ b/tests/auto/testlib/selftests/expected_float.tap
@@ -1,8 +1,7 @@
 TAP version 13
 # tst_float
 ok 1 - initTestCase()
-ok 2 - doubleComparisons(should PASS 1)
-not ok 3 - doubleComparisons(should FAIL 1)
+not ok 2 - doubleComparisons(should FAIL 1)
   ---
   type: QCOMPARE
   message: Compared doubles are not the same (fuzzy compare)
@@ -10,10 +9,11 @@ not ok 3 - doubleComparisons(should FAIL 1)
   found: 1 (operandLeft)
   expected: 3 (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
+ok 3 - doubleComparisons(should PASS 1)
 not ok 4 - doubleComparisons(should FAIL 2)
   ---
   type: QCOMPARE
@@ -22,9 +22,9 @@ not ok 4 - doubleComparisons(should FAIL 2)
   found: 1e-07 (operandLeft)
   expected: 3e-07 (operandRight)
   actual: 1e-07 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 ok 5 - doubleComparisons(should PASS 2)
 not ok 6 - doubleComparisons(should FAIL 3)
@@ -35,9 +35,9 @@ not ok 6 - doubleComparisons(should FAIL 3)
   found: 999999999999 (operandLeft)
   expected: 999999999998 (operandRight)
   actual: 999999999999 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 ok 7 - doubleComparisons(should PASS 3)
 not ok 8 - doubleComparisons(should FAIL 4)
@@ -48,9 +48,9 @@ not ok 8 - doubleComparisons(should FAIL 4)
   found: 9.99999999999e-311 (operandLeft)
   expected: 9.99999999997e-311 (operandRight)
   actual: 9.99999999999e-311 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 ok 9 - doubleComparisons(should PASS 4)
 not ok 10 - doubleComparisons(should FAIL 5)
@@ -61,9 +61,9 @@ not ok 10 - doubleComparisons(should FAIL 5)
   found: 9.99999999999e+306 (operandLeft)
   expected: 9.99999999997e+306 (operandRight)
   actual: 9.99999999999e+306 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 ok 11 - doubleComparisons(should PASS: NaN == NaN)
 not ok 12 - doubleComparisons(should FAIL: NaN != 0)
@@ -74,9 +74,9 @@ not ok 12 - doubleComparisons(should FAIL: NaN != 0)
   found: nan (operandLeft)
   expected: 0 (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 13 - doubleComparisons(should FAIL: 0 != NaN)
   ---
@@ -86,9 +86,9 @@ not ok 13 - doubleComparisons(should FAIL: 0 != NaN)
   found: 0 (operandLeft)
   expected: nan (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 14 - doubleComparisons(should FAIL: NaN != 1)
   ---
@@ -98,9 +98,9 @@ not ok 14 - doubleComparisons(should FAIL: NaN != 1)
   found: nan (operandLeft)
   expected: 1 (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 15 - doubleComparisons(should FAIL: 1 != NaN)
   ---
@@ -110,9 +110,9 @@ not ok 15 - doubleComparisons(should FAIL: 1 != NaN)
   found: 1 (operandLeft)
   expected: nan (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 ok 16 - doubleComparisons(should PASS: inf == inf)
 ok 17 - doubleComparisons(should PASS: -inf == -inf)
@@ -124,9 +124,9 @@ not ok 18 - doubleComparisons(should FAIL: inf != -inf)
   found: inf (operandLeft)
   expected: -inf (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 19 - doubleComparisons(should FAIL: -inf != inf)
   ---
@@ -136,9 +136,9 @@ not ok 19 - doubleComparisons(should FAIL: -inf != inf)
   found: -inf (operandLeft)
   expected: inf (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 20 - doubleComparisons(should FAIL: inf != nan)
   ---
@@ -148,9 +148,9 @@ not ok 20 - doubleComparisons(should FAIL: inf != nan)
   found: inf (operandLeft)
   expected: nan (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 21 - doubleComparisons(should FAIL: nan != inf)
   ---
@@ -160,9 +160,9 @@ not ok 21 - doubleComparisons(should FAIL: nan != inf)
   found: nan (operandLeft)
   expected: inf (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 22 - doubleComparisons(should FAIL: -inf != nan)
   ---
@@ -172,9 +172,9 @@ not ok 22 - doubleComparisons(should FAIL: -inf != nan)
   found: -inf (operandLeft)
   expected: nan (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 23 - doubleComparisons(should FAIL: nan != -inf)
   ---
@@ -184,9 +184,9 @@ not ok 23 - doubleComparisons(should FAIL: nan != -inf)
   found: nan (operandLeft)
   expected: -inf (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 24 - doubleComparisons(should FAIL: inf != 0)
   ---
@@ -196,9 +196,9 @@ not ok 24 - doubleComparisons(should FAIL: inf != 0)
   found: inf (operandLeft)
   expected: 0 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 25 - doubleComparisons(should FAIL: 0 != inf)
   ---
@@ -208,9 +208,9 @@ not ok 25 - doubleComparisons(should FAIL: 0 != inf)
   found: 0 (operandLeft)
   expected: inf (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 26 - doubleComparisons(should FAIL: -inf != 0)
   ---
@@ -220,9 +220,9 @@ not ok 26 - doubleComparisons(should FAIL: -inf != 0)
   found: -inf (operandLeft)
   expected: 0 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 27 - doubleComparisons(should FAIL: 0 != -inf)
   ---
@@ -232,9 +232,9 @@ not ok 27 - doubleComparisons(should FAIL: 0 != -inf)
   found: 0 (operandLeft)
   expected: -inf (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 28 - doubleComparisons(should FAIL: inf != 1)
   ---
@@ -244,9 +244,9 @@ not ok 28 - doubleComparisons(should FAIL: inf != 1)
   found: inf (operandLeft)
   expected: 1 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 29 - doubleComparisons(should FAIL: 1 != inf)
   ---
@@ -256,9 +256,9 @@ not ok 29 - doubleComparisons(should FAIL: 1 != inf)
   found: 1 (operandLeft)
   expected: inf (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 30 - doubleComparisons(should FAIL: -inf != 1)
   ---
@@ -268,9 +268,9 @@ not ok 30 - doubleComparisons(should FAIL: -inf != 1)
   found: -inf (operandLeft)
   expected: 1 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 31 - doubleComparisons(should FAIL: 1 != -inf)
   ---
@@ -280,9 +280,9 @@ not ok 31 - doubleComparisons(should FAIL: 1 != -inf)
   found: 1 (operandLeft)
   expected: -inf (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 32 - doubleComparisons(should FAIL: inf != max)
   ---
@@ -292,9 +292,9 @@ not ok 32 - doubleComparisons(should FAIL: inf != max)
   found: inf (operandLeft)
   expected: 1.79769313486e+308 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 33 - doubleComparisons(should FAIL: inf != -max)
   ---
@@ -304,9 +304,9 @@ not ok 33 - doubleComparisons(should FAIL: inf != -max)
   found: inf (operandLeft)
   expected: -1.79769313486e+308 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 34 - doubleComparisons(should FAIL: max != inf)
   ---
@@ -316,9 +316,9 @@ not ok 34 - doubleComparisons(should FAIL: max != inf)
   found: 1.79769313486e+308 (operandLeft)
   expected: inf (operandRight)
   actual: 1.79769313486e+308 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 35 - doubleComparisons(should FAIL: -max != inf)
   ---
@@ -328,9 +328,9 @@ not ok 35 - doubleComparisons(should FAIL: -max != inf)
   found: -1.79769313486e+308 (operandLeft)
   expected: inf (operandRight)
   actual: -1.79769313486e+308 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 36 - doubleComparisons(should FAIL: -inf != max)
   ---
@@ -340,9 +340,9 @@ not ok 36 - doubleComparisons(should FAIL: -inf != max)
   found: -inf (operandLeft)
   expected: 1.79769313486e+308 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 37 - doubleComparisons(should FAIL: -inf != -max)
   ---
@@ -352,9 +352,9 @@ not ok 37 - doubleComparisons(should FAIL: -inf != -max)
   found: -inf (operandLeft)
   expected: -1.79769313486e+308 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 38 - doubleComparisons(should FAIL: max != -inf)
   ---
@@ -364,9 +364,9 @@ not ok 38 - doubleComparisons(should FAIL: max != -inf)
   found: 1.79769313486e+308 (operandLeft)
   expected: -inf (operandRight)
   actual: 1.79769313486e+308 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 39 - doubleComparisons(should FAIL: -max != -inf)
   ---
@@ -376,9 +376,9 @@ not ok 39 - doubleComparisons(should FAIL: -max != -inf)
   found: -1.79769313486e+308 (operandLeft)
   expected: -inf (operandRight)
   actual: -1.79769313486e+308 (operandLeft)
-  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:54)
+  at: tst_float::doubleComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:103)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 54
+  line: 103
   ...
 not ok 40 - floatComparisons(should FAIL 1)
   ---
@@ -388,9 +388,9 @@ not ok 40 - floatComparisons(should FAIL 1)
   found: 1 (operandLeft)
   expected: 3 (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 41 - floatComparisons(should PASS 1)
 not ok 42 - floatComparisons(should FAIL 2)
@@ -401,9 +401,9 @@ not ok 42 - floatComparisons(should FAIL 2)
   found: 1e-07 (operandLeft)
   expected: 3e-07 (operandRight)
   actual: 1e-07 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 43 - floatComparisons(should PASS 2)
 not ok 44 - floatComparisons(should FAIL 3)
@@ -414,9 +414,9 @@ not ok 44 - floatComparisons(should FAIL 3)
   found: 99999 (operandLeft)
   expected: 99998 (operandRight)
   actual: 99999 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 45 - floatComparisons(should PASS 3)
 not ok 46 - floatComparisons(should FAIL 4)
@@ -427,9 +427,9 @@ not ok 46 - floatComparisons(should FAIL 4)
   found: 9.9999e-40 (operandLeft)
   expected: 9.99971e-40 (operandRight)
   actual: 9.9999e-40 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 47 - floatComparisons(should PASS 4)
 not ok 48 - floatComparisons(should FAIL 5)
@@ -440,9 +440,9 @@ not ok 48 - floatComparisons(should FAIL 5)
   found: 9.9999e+37 (operandLeft)
   expected: 9.9997e+37 (operandRight)
   actual: 9.9999e+37 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 49 - floatComparisons(should PASS: NaN == NaN)
 not ok 50 - floatComparisons(should FAIL: NaN != 0)
@@ -453,9 +453,9 @@ not ok 50 - floatComparisons(should FAIL: NaN != 0)
   found: nan (operandLeft)
   expected: 0 (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 51 - floatComparisons(should FAIL: 0 != NaN)
   ---
@@ -465,9 +465,9 @@ not ok 51 - floatComparisons(should FAIL: 0 != NaN)
   found: 0 (operandLeft)
   expected: nan (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 52 - floatComparisons(should FAIL: NaN != 1)
   ---
@@ -477,9 +477,9 @@ not ok 52 - floatComparisons(should FAIL: NaN != 1)
   found: nan (operandLeft)
   expected: 1 (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 53 - floatComparisons(should FAIL: 1 != NaN)
   ---
@@ -489,9 +489,9 @@ not ok 53 - floatComparisons(should FAIL: 1 != NaN)
   found: 1 (operandLeft)
   expected: nan (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 ok 54 - floatComparisons(should PASS: inf == inf)
 ok 55 - floatComparisons(should PASS: -inf == -inf)
@@ -503,9 +503,9 @@ not ok 56 - floatComparisons(should FAIL: inf != -inf)
   found: inf (operandLeft)
   expected: -inf (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 57 - floatComparisons(should FAIL: -inf != inf)
   ---
@@ -515,9 +515,9 @@ not ok 57 - floatComparisons(should FAIL: -inf != inf)
   found: -inf (operandLeft)
   expected: inf (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 58 - floatComparisons(should FAIL: inf != nan)
   ---
@@ -527,9 +527,9 @@ not ok 58 - floatComparisons(should FAIL: inf != nan)
   found: inf (operandLeft)
   expected: nan (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 59 - floatComparisons(should FAIL: nan != inf)
   ---
@@ -539,9 +539,9 @@ not ok 59 - floatComparisons(should FAIL: nan != inf)
   found: nan (operandLeft)
   expected: inf (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 60 - floatComparisons(should FAIL: -inf != nan)
   ---
@@ -551,9 +551,9 @@ not ok 60 - floatComparisons(should FAIL: -inf != nan)
   found: -inf (operandLeft)
   expected: nan (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 61 - floatComparisons(should FAIL: nan != -inf)
   ---
@@ -563,9 +563,9 @@ not ok 61 - floatComparisons(should FAIL: nan != -inf)
   found: nan (operandLeft)
   expected: -inf (operandRight)
   actual: nan (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 62 - floatComparisons(should FAIL: inf != 0)
   ---
@@ -575,9 +575,9 @@ not ok 62 - floatComparisons(should FAIL: inf != 0)
   found: inf (operandLeft)
   expected: 0 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 63 - floatComparisons(should FAIL: 0 != inf)
   ---
@@ -587,9 +587,9 @@ not ok 63 - floatComparisons(should FAIL: 0 != inf)
   found: 0 (operandLeft)
   expected: inf (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 64 - floatComparisons(should FAIL: -inf != 0)
   ---
@@ -599,9 +599,9 @@ not ok 64 - floatComparisons(should FAIL: -inf != 0)
   found: -inf (operandLeft)
   expected: 0 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 65 - floatComparisons(should FAIL: 0 != -inf)
   ---
@@ -611,9 +611,9 @@ not ok 65 - floatComparisons(should FAIL: 0 != -inf)
   found: 0 (operandLeft)
   expected: -inf (operandRight)
   actual: 0 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 66 - floatComparisons(should FAIL: inf != 1)
   ---
@@ -623,9 +623,9 @@ not ok 66 - floatComparisons(should FAIL: inf != 1)
   found: inf (operandLeft)
   expected: 1 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 67 - floatComparisons(should FAIL: 1 != inf)
   ---
@@ -635,9 +635,9 @@ not ok 67 - floatComparisons(should FAIL: 1 != inf)
   found: 1 (operandLeft)
   expected: inf (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 68 - floatComparisons(should FAIL: -inf != 1)
   ---
@@ -647,9 +647,9 @@ not ok 68 - floatComparisons(should FAIL: -inf != 1)
   found: -inf (operandLeft)
   expected: 1 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 69 - floatComparisons(should FAIL: 1 != -inf)
   ---
@@ -659,9 +659,9 @@ not ok 69 - floatComparisons(should FAIL: 1 != -inf)
   found: 1 (operandLeft)
   expected: -inf (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 70 - floatComparisons(should FAIL: inf != max)
   ---
@@ -671,9 +671,9 @@ not ok 70 - floatComparisons(should FAIL: inf != max)
   found: inf (operandLeft)
   expected: 3.40282e+38 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 71 - floatComparisons(should FAIL: inf != -max)
   ---
@@ -683,9 +683,9 @@ not ok 71 - floatComparisons(should FAIL: inf != -max)
   found: inf (operandLeft)
   expected: -3.40282e+38 (operandRight)
   actual: inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 72 - floatComparisons(should FAIL: max != inf)
   ---
@@ -695,9 +695,9 @@ not ok 72 - floatComparisons(should FAIL: max != inf)
   found: 3.40282e+38 (operandLeft)
   expected: inf (operandRight)
   actual: 3.40282e+38 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 73 - floatComparisons(should FAIL: -max != inf)
   ---
@@ -707,9 +707,9 @@ not ok 73 - floatComparisons(should FAIL: -max != inf)
   found: -3.40282e+38 (operandLeft)
   expected: inf (operandRight)
   actual: -3.40282e+38 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 74 - floatComparisons(should FAIL: -inf != max)
   ---
@@ -719,9 +719,9 @@ not ok 74 - floatComparisons(should FAIL: -inf != max)
   found: -inf (operandLeft)
   expected: 3.40282e+38 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 75 - floatComparisons(should FAIL: -inf != -max)
   ---
@@ -731,9 +731,9 @@ not ok 75 - floatComparisons(should FAIL: -inf != -max)
   found: -inf (operandLeft)
   expected: -3.40282e+38 (operandRight)
   actual: -inf (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 76 - floatComparisons(should FAIL: max != -inf)
   ---
@@ -743,9 +743,9 @@ not ok 76 - floatComparisons(should FAIL: max != -inf)
   found: 3.40282e+38 (operandLeft)
   expected: -inf (operandRight)
   actual: 3.40282e+38 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
 not ok 77 - floatComparisons(should FAIL: -max != -inf)
   ---
@@ -755,12 +755,11 @@ not ok 77 - floatComparisons(should FAIL: -max != -inf)
   found: -3.40282e+38 (operandLeft)
   expected: -inf (operandRight)
   actual: -3.40282e+38 (operandLeft)
-  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:127)
+  at: tst_float::floatComparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:137)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 127
+  line: 137
   ...
-ok 78 - float16Comparisons(should SUCCEED 1)
-not ok 79 - float16Comparisons(should FAIL 1)
+not ok 78 - float16Comparisons(should FAIL 1)
   ---
   type: QCOMPARE
   message: Compared qfloat16s are not the same (fuzzy compare)
@@ -768,10 +767,11 @@ not ok 79 - float16Comparisons(should FAIL 1)
   found: 1 (operandLeft)
   expected: 3 (operandRight)
   actual: 1 (operandLeft)
-  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:200)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 200
+  line: 171
   ...
+ok 79 - float16Comparisons(should PASS 1)
 not ok 80 - float16Comparisons(should FAIL 2)
   ---
   type: QCOMPARE
@@ -780,11 +780,12 @@ not ok 80 - float16Comparisons(should FAIL 2)
   found: 0.0001 (operandLeft)
   expected: 0.0003 (operandRight)
   actual: 0.0001 (operandLeft)
-  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:200)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 200
+  line: 171
   ...
-not ok 81 - float16Comparisons(should FAIL 3)
+ok 81 - float16Comparisons(should PASS 2)
+not ok 82 - float16Comparisons(should FAIL 3)
   ---
   type: QCOMPARE
   message: Compared qfloat16s are not the same (fuzzy compare)
@@ -792,12 +793,352 @@ not ok 81 - float16Comparisons(should FAIL 3)
   found: 98 (operandLeft)
   expected: 99 (operandRight)
   actual: 98 (operandLeft)
-  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:200)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 200
+  line: 171
   ...
-ok 82 - float16Comparisons(should SUCCEED 2)
-not ok 83 - compareFloatTests(1e0)
+ok 83 - float16Comparisons(should PASS 3)
+not ok 84 - float16Comparisons(should FAIL 4)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 5.87e-05 (operandRight)
+  found: 5.93e-05 (operandLeft)
+  expected: 5.87e-05 (operandRight)
+  actual: 5.93e-05 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+ok 85 - float16Comparisons(should PASS 4)
+not ok 86 - float16Comparisons(should FAIL 5)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 5.88e+04 (operandRight)
+  found: 5.94e+04 (operandLeft)
+  expected: 5.88e+04 (operandRight)
+  actual: 5.94e+04 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+ok 87 - float16Comparisons(should PASS: NaN == NaN)
+not ok 88 - float16Comparisons(should FAIL: NaN != 0)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 0 (operandRight)
+  found: nan (operandLeft)
+  expected: 0 (operandRight)
+  actual: nan (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 89 - float16Comparisons(should FAIL: 0 != NaN)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: nan (operandRight)
+  found: 0 (operandLeft)
+  expected: nan (operandRight)
+  actual: 0 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 90 - float16Comparisons(should FAIL: NaN != 1)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 1 (operandRight)
+  found: nan (operandLeft)
+  expected: 1 (operandRight)
+  actual: nan (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 91 - float16Comparisons(should FAIL: 1 != NaN)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: nan (operandRight)
+  found: 1 (operandLeft)
+  expected: nan (operandRight)
+  actual: 1 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+ok 92 - float16Comparisons(should PASS: inf == inf)
+ok 93 - float16Comparisons(should PASS: -inf == -inf)
+not ok 94 - float16Comparisons(should FAIL: inf != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: inf (operandLeft)
+  expected: -inf (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 95 - float16Comparisons(should FAIL: -inf != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: -inf (operandLeft)
+  expected: inf (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 96 - float16Comparisons(should FAIL: inf != nan)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: nan (operandRight)
+  found: inf (operandLeft)
+  expected: nan (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 97 - float16Comparisons(should FAIL: nan != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: nan (operandLeft)
+  expected: inf (operandRight)
+  actual: nan (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 98 - float16Comparisons(should FAIL: -inf != nan)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: nan (operandRight)
+  found: -inf (operandLeft)
+  expected: nan (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 99 - float16Comparisons(should FAIL: nan != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: nan (operandLeft)
+  expected: -inf (operandRight)
+  actual: nan (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 100 - float16Comparisons(should FAIL: inf != 0)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 0 (operandRight)
+  found: inf (operandLeft)
+  expected: 0 (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 101 - float16Comparisons(should FAIL: 0 != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: 0 (operandLeft)
+  expected: inf (operandRight)
+  actual: 0 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 102 - float16Comparisons(should FAIL: -inf != 0)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 0 (operandRight)
+  found: -inf (operandLeft)
+  expected: 0 (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 103 - float16Comparisons(should FAIL: 0 != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: 0 (operandLeft)
+  expected: -inf (operandRight)
+  actual: 0 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 104 - float16Comparisons(should FAIL: inf != 1)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 1 (operandRight)
+  found: inf (operandLeft)
+  expected: 1 (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 105 - float16Comparisons(should FAIL: 1 != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: 1 (operandLeft)
+  expected: inf (operandRight)
+  actual: 1 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 106 - float16Comparisons(should FAIL: -inf != 1)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 1 (operandRight)
+  found: -inf (operandLeft)
+  expected: 1 (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 107 - float16Comparisons(should FAIL: 1 != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: 1 (operandLeft)
+  expected: -inf (operandRight)
+  actual: 1 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 108 - float16Comparisons(should FAIL: inf != max)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 6.55e+04 (operandRight)
+  found: inf (operandLeft)
+  expected: 6.55e+04 (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 109 - float16Comparisons(should FAIL: inf != -max)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -6.55e+04 (operandRight)
+  found: inf (operandLeft)
+  expected: -6.55e+04 (operandRight)
+  actual: inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 110 - float16Comparisons(should FAIL: max != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: 6.55e+04 (operandLeft)
+  expected: inf (operandRight)
+  actual: 6.55e+04 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 111 - float16Comparisons(should FAIL: -max != inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: inf (operandRight)
+  found: -6.55e+04 (operandLeft)
+  expected: inf (operandRight)
+  actual: -6.55e+04 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 112 - float16Comparisons(should FAIL: -inf != max)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: 6.55e+04 (operandRight)
+  found: -inf (operandLeft)
+  expected: 6.55e+04 (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 113 - float16Comparisons(should FAIL: -inf != -max)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -6.55e+04 (operandRight)
+  found: -inf (operandLeft)
+  expected: -6.55e+04 (operandRight)
+  actual: -inf (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 114 - float16Comparisons(should FAIL: max != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: 6.55e+04 (operandLeft)
+  expected: -inf (operandRight)
+  actual: 6.55e+04 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 115 - float16Comparisons(should FAIL: -max != -inf)
+  ---
+  type: QCOMPARE
+  message: Compared qfloat16s are not the same (fuzzy compare)
+  wanted: -inf (operandRight)
+  found: -6.55e+04 (operandLeft)
+  expected: -inf (operandRight)
+  actual: -6.55e+04 (operandLeft)
+  at: tst_float::float16Comparisons() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:171)
+  file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
+  line: 171
+  ...
+not ok 116 - compareFloatTests(1e0)
   ---
   type: QCOMPARE
   message: Compared floats are not the same (fuzzy compare)
@@ -805,11 +1146,11 @@ not ok 83 - compareFloatTests(1e0)
   found: 1 (t1)
   expected: 3 (t3)
   actual: 1 (t1)
-  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:245)
+  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:210)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 245
+  line: 210
   ...
-not ok 84 - compareFloatTests(1e-7)
+not ok 117 - compareFloatTests(1e-7)
   ---
   type: QCOMPARE
   message: Compared floats are not the same (fuzzy compare)
@@ -817,11 +1158,11 @@ not ok 84 - compareFloatTests(1e-7)
   found: 1e-07 (t1)
   expected: 3e-07 (t3)
   actual: 1e-07 (t1)
-  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:245)
+  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:210)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 245
+  line: 210
   ...
-not ok 85 - compareFloatTests(1e+7)
+not ok 118 - compareFloatTests(1e+7)
   ---
   type: QCOMPARE
   message: Compared floats are not the same (fuzzy compare)
@@ -829,12 +1170,12 @@ not ok 85 - compareFloatTests(1e+7)
   found: 1e+07 (t1)
   expected: 3e+07 (t3)
   actual: 1e+07 (t1)
-  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:245)
+  at: tst_float::compareFloatTests() (qtbase/tests/auto/testlib/selftests/float/tst_float.cpp:210)
   file: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp
-  line: 245
+  line: 210
   ...
-ok 86 - cleanupTestCase()
-1..86
-# tests 86
-# pass 18
-# fail 68
+ok 119 - cleanupTestCase()
+1..119
+# tests 119
+# pass 23
+# fail 96
diff --git a/tests/auto/testlib/selftests/expected_float.teamcity b/tests/auto/testlib/selftests/expected_float.teamcity
index e23bc722b1..af81296c42 100644
--- a/tests/auto/testlib/selftests/expected_float.teamcity
+++ b/tests/auto/testlib/selftests/expected_float.teamcity
@@ -1,11 +1,11 @@
 ##teamcity[testSuiteStarted name='tst_float' flowId='tst_float']
 ##teamcity[testStarted name='initTestCase()' flowId='tst_float']
 ##teamcity[testFinished name='initTestCase()' flowId='tst_float']
-##teamcity[testStarted name='doubleComparisons(should PASS 1)' flowId='tst_float']
-##teamcity[testFinished name='doubleComparisons(should PASS 1)' flowId='tst_float']
 ##teamcity[testStarted name='doubleComparisons(should FAIL 1)' flowId='tst_float']
 ##teamcity[testFailed name='doubleComparisons(should FAIL 1)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared doubles are not the same (fuzzy compare)|n Actual (operandLeft) : 1|n Expected (operandRight): 3' flowId='tst_float']
 ##teamcity[testFinished name='doubleComparisons(should FAIL 1)' flowId='tst_float']
+##teamcity[testStarted name='doubleComparisons(should PASS 1)' flowId='tst_float']
+##teamcity[testFinished name='doubleComparisons(should PASS 1)' flowId='tst_float']
 ##teamcity[testStarted name='doubleComparisons(should FAIL 2)' flowId='tst_float']
 ##teamcity[testFailed name='doubleComparisons(should FAIL 2)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared doubles are not the same (fuzzy compare)|n Actual (operandLeft) : 1e-07|n Expected (operandRight): 3e-07' flowId='tst_float']
 ##teamcity[testFinished name='doubleComparisons(should FAIL 2)' flowId='tst_float']
@@ -215,19 +215,113 @@
 ##teamcity[testStarted name='floatComparisons(should FAIL: -max != -inf)' flowId='tst_float']
 ##teamcity[testFailed name='floatComparisons(should FAIL: -max != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared floats are not the same (fuzzy compare)|n Actual (operandLeft) : -3.40282e+38|n Expected (operandRight): -inf' flowId='tst_float']
 ##teamcity[testFinished name='floatComparisons(should FAIL: -max != -inf)' flowId='tst_float']
-##teamcity[testStarted name='float16Comparisons(should SUCCEED 1)' flowId='tst_float']
-##teamcity[testFinished name='float16Comparisons(should SUCCEED 1)' flowId='tst_float']
 ##teamcity[testStarted name='float16Comparisons(should FAIL 1)' flowId='tst_float']
 ##teamcity[testFailed name='float16Comparisons(should FAIL 1)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 1|n Expected (operandRight): 3' flowId='tst_float']
 ##teamcity[testFinished name='float16Comparisons(should FAIL 1)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS 1)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS 1)' flowId='tst_float']
 ##teamcity[testStarted name='float16Comparisons(should FAIL 2)' flowId='tst_float']
 ##teamcity[testFailed name='float16Comparisons(should FAIL 2)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 0.0001|n Expected (operandRight): 0.0003' flowId='tst_float']
 ##teamcity[testFinished name='float16Comparisons(should FAIL 2)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS 2)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS 2)' flowId='tst_float']
 ##teamcity[testStarted name='float16Comparisons(should FAIL 3)' flowId='tst_float']
 ##teamcity[testFailed name='float16Comparisons(should FAIL 3)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 98|n Expected (operandRight): 99' flowId='tst_float']
 ##teamcity[testFinished name='float16Comparisons(should FAIL 3)' flowId='tst_float']
-##teamcity[testStarted name='float16Comparisons(should SUCCEED 2)' flowId='tst_float']
-##teamcity[testFinished name='float16Comparisons(should SUCCEED 2)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS 3)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS 3)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL 4)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL 4)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 5.93e-05|n Expected (operandRight): 5.87e-05' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL 4)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS 4)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS 4)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL 5)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL 5)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 5.94e+04|n Expected (operandRight): 5.88e+04' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL 5)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS: NaN == NaN)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS: NaN == NaN)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: NaN != 0)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: NaN != 0)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : nan|n Expected (operandRight): 0' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: NaN != 0)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 0 != NaN)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 0 != NaN)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 0|n Expected (operandRight): nan' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 0 != NaN)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: NaN != 1)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: NaN != 1)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : nan|n Expected (operandRight): 1' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: NaN != 1)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 1 != NaN)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 1 != NaN)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 1|n Expected (operandRight): nan' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 1 != NaN)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS: inf == inf)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS: inf == inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should PASS: -inf == -inf)' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should PASS: -inf == -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != nan)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != nan)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): nan' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != nan)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: nan != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: nan != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : nan|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: nan != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != nan)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != nan)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): nan' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != nan)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: nan != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: nan != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : nan|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: nan != -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != 0)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != 0)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): 0' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != 0)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 0 != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 0 != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 0|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 0 != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != 0)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != 0)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): 0' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != 0)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 0 != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 0 != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 0|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 0 != -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != 1)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != 1)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): 1' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != 1)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 1 != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 1 != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 1|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 1 != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != 1)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != 1)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): 1' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != 1)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: 1 != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: 1 != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 1|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: 1 != -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != max)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != max)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): 6.55e+04' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != max)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: inf != -max)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: inf != -max)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : inf|n Expected (operandRight): -6.55e+04' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: inf != -max)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: max != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: max != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 6.55e+04|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: max != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -max != inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -max != inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -6.55e+04|n Expected (operandRight): inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -max != inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != max)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != max)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): 6.55e+04' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != max)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -inf != -max)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -inf != -max)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -inf|n Expected (operandRight): -6.55e+04' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -inf != -max)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: max != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: max != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : 6.55e+04|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: max != -inf)' flowId='tst_float']
+##teamcity[testStarted name='float16Comparisons(should FAIL: -max != -inf)' flowId='tst_float']
+##teamcity[testFailed name='float16Comparisons(should FAIL: -max != -inf)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared qfloat16s are not the same (fuzzy compare)|n Actual (operandLeft) : -6.55e+04|n Expected (operandRight): -inf' flowId='tst_float']
+##teamcity[testFinished name='float16Comparisons(should FAIL: -max != -inf)' flowId='tst_float']
 ##teamcity[testStarted name='compareFloatTests(1e0)' flowId='tst_float']
 ##teamcity[testFailed name='compareFloatTests(1e0)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)|]' details='Compared floats are not the same (fuzzy compare)|n Actual (t1): 1|n Expected (t3): 3' flowId='tst_float']
 ##teamcity[testFinished name='compareFloatTests(1e0)' flowId='tst_float']
diff --git a/tests/auto/testlib/selftests/expected_float.txt b/tests/auto/testlib/selftests/expected_float.txt
index 6419a13f86..d22a52a63d 100644
--- a/tests/auto/testlib/selftests/expected_float.txt
+++ b/tests/auto/testlib/selftests/expected_float.txt
@@ -1,11 +1,11 @@
 ********* Start testing of tst_float *********
 Config: Using QtTest library
 PASS   : tst_float::initTestCase()
-PASS   : tst_float::doubleComparisons(should PASS 1)
 FAIL!  : tst_float::doubleComparisons(should FAIL 1) Compared doubles are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::doubleComparisons(should PASS 1)
 FAIL!  : tst_float::doubleComparisons(should FAIL 2) Compared doubles are not the same (fuzzy compare)
    Actual   (operandLeft) : 1e-07
    Expected (operandRight): 3e-07
@@ -263,20 +263,137 @@ FAIL!  : tst_float::floatComparisons(should FAIL: -max != -inf) Compared floats
    Actual   (operandLeft) : -3.40282e+38
    Expected (operandRight): -inf
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
-PASS   : tst_float::float16Comparisons(should SUCCEED 1)
 FAIL!  : tst_float::float16Comparisons(should FAIL 1) Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::float16Comparisons(should PASS 1)
 FAIL!  : tst_float::float16Comparisons(should FAIL 2) Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 0.0001
    Expected (operandRight): 0.0003
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::float16Comparisons(should PASS 2)
 FAIL!  : tst_float::float16Comparisons(should FAIL 3) Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 98
    Expected (operandRight): 99
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
-PASS   : tst_float::float16Comparisons(should SUCCEED 2)
+PASS   : tst_float::float16Comparisons(should PASS 3)
+FAIL!  : tst_float::float16Comparisons(should FAIL 4) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.93e-05
+   Expected (operandRight): 5.87e-05
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::float16Comparisons(should PASS 4)
+FAIL!  : tst_float::float16Comparisons(should FAIL 5) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.94e+04
+   Expected (operandRight): 5.88e+04
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::float16Comparisons(should PASS: NaN == NaN)
+FAIL!  : tst_float::float16Comparisons(should FAIL: NaN != 0) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 0
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 0 != NaN) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): nan
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: NaN != 1) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 1
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 1 != NaN) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): nan
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+PASS   : tst_float::float16Comparisons(should PASS: inf == inf)
+PASS   : tst_float::float16Comparisons(should PASS: -inf == -inf)
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != nan) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): nan
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: nan != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != nan) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): nan
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: nan != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != 0) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 0
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 0 != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != 0) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 0
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 0 != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != 1) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 1
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 1 != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != 1) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 1
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: 1 != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != max) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 6.55e+04
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: inf != -max) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -6.55e+04
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: max != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -max != inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != max) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 6.55e+04
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -inf != -max) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): -6.55e+04
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: max != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
+FAIL!  : tst_float::float16Comparisons(should FAIL: -max != -inf) Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): -inf
+   Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
 FAIL!  : tst_float::compareFloatTests(1e0) Compared floats are not the same (fuzzy compare)
    Actual   (t1): 1
    Expected (t3): 3
@@ -290,5 +407,5 @@ FAIL!  : tst_float::compareFloatTests(1e+7) Compared floats are not the same (fu
    Expected (t3): 3e+07
    Loc: [qtbase/tests/auto/testlib/selftests/float/tst_float.cpp(0)]
 PASS   : tst_float::cleanupTestCase()
-Totals: 18 passed, 68 failed, 0 skipped, 0 blacklisted, 0ms
+Totals: 23 passed, 96 failed, 0 skipped, 0 blacklisted, 0ms
 ********* Finished testing of tst_float *********
diff --git a/tests/auto/testlib/selftests/expected_float.xml b/tests/auto/testlib/selftests/expected_float.xml
index 65d2c5ad96..247bce9577 100644
--- a/tests/auto/testlib/selftests/expected_float.xml
+++ b/tests/auto/testlib/selftests/expected_float.xml
@@ -10,15 +10,15 @@
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="doubleComparisons">
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should PASS 1]]></DataTag>
-</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 1]]></DataTag>
     <Description><![CDATA[Compared doubles are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 1]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 2]]></DataTag>
     <Description><![CDATA[Compared doubles are not the same (fuzzy compare)
@@ -430,21 +430,24 @@
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="float16Comparisons">
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should SUCCEED 1]]></DataTag>
-</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 1]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 1
    Expected (operandRight): 3]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 1]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 2]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 0.0001
    Expected (operandRight): 0.0003]]></Description>
 </Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 2]]></DataTag>
+</Incident>
 <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
     <DataTag><![CDATA[should FAIL 3]]></DataTag>
     <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
@@ -452,7 +455,187 @@
    Expected (operandRight): 99]]></Description>
 </Incident>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[should SUCCEED 2]]></DataTag>
+    <DataTag><![CDATA[should PASS 3]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL 4]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.93e-05
+   Expected (operandRight): 5.87e-05]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS 4]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL 5]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.94e+04
+   Expected (operandRight): 5.88e+04]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: NaN == NaN]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: NaN != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != NaN]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: NaN != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != NaN]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: inf == inf]]></DataTag>
+</Incident>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[should PASS: -inf == -inf]]></DataTag>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != nan]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: nan != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != nan]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): nan]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: nan != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != 0]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 0]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 0 != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != 1]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 1]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: 1 != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: inf != -max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): -6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: max != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -max != inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): 6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -inf != -max]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -inf
+   Expected (operandRight): -6.55e+04]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: max != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): -inf]]></Description>
+</Incident>
+<Incident type="fail" file="qtbase/tests/auto/testlib/selftests/float/tst_float.cpp" line="0">
+    <DataTag><![CDATA[should FAIL: -max != -inf]]></DataTag>
+    <Description><![CDATA[Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : -6.55e+04
+   Expected (operandRight): -inf]]></Description>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
diff --git a/tests/auto/testlib/selftests/expected_float.xunitxml b/tests/auto/testlib/selftests/expected_float.xunitxml
index 9b2af9b616..602f9252a4 100644
--- a/tests/auto/testlib/selftests/expected_float.xunitxml
+++ b/tests/auto/testlib/selftests/expected_float.xunitxml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<testsuite errors="0" failures="68" tests="6" name="tst_float">
+<testsuite errors="0" failures="96" tests="6" name="tst_float">
   <properties>
     <property value="@INSERT_QT_VERSION_HERE@" name="QTestVersion"/>
     <property value="@INSERT_QT_VERSION_HERE@" name="QtVersion"/>
@@ -206,6 +206,90 @@
     <failure tag="should FAIL 3" message="Compared qfloat16s are not the same (fuzzy compare)
    Actual   (operandLeft) : 98
    Expected (operandRight): 99" result="fail"/>
+    <failure tag="should FAIL 4" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.93e&#x002D;05
+   Expected (operandRight): 5.87e&#x002D;05" result="fail"/>
+    <failure tag="should FAIL 5" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 5.94e+04
+   Expected (operandRight): 5.88e+04" result="fail"/>
+    <failure tag="should FAIL: NaN != 0" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 0" result="fail"/>
+    <failure tag="should FAIL: 0 != NaN" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): nan" result="fail"/>
+    <failure tag="should FAIL: NaN != 1" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): 1" result="fail"/>
+    <failure tag="should FAIL: 1 != NaN" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): nan" result="fail"/>
+    <failure tag="should FAIL: inf != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): &#x002D;inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: inf != nan" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): nan" result="fail"/>
+    <failure tag="should FAIL: nan != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != nan" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): nan" result="fail"/>
+    <failure tag="should FAIL: nan != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : nan
+   Expected (operandRight): &#x002D;inf" result="fail"/>
+    <failure tag="should FAIL: inf != 0" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 0" result="fail"/>
+    <failure tag="should FAIL: 0 != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != 0" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): 0" result="fail"/>
+    <failure tag="should FAIL: 0 != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 0
+   Expected (operandRight): &#x002D;inf" result="fail"/>
+    <failure tag="should FAIL: inf != 1" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 1" result="fail"/>
+    <failure tag="should FAIL: 1 != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != 1" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): 1" result="fail"/>
+    <failure tag="should FAIL: 1 != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 1
+   Expected (operandRight): &#x002D;inf" result="fail"/>
+    <failure tag="should FAIL: inf != max" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): 6.55e+04" result="fail"/>
+    <failure tag="should FAIL: inf != &#x002D;max" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : inf
+   Expected (operandRight): &#x002D;6.55e+04" result="fail"/>
+    <failure tag="should FAIL: max != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;max != inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;6.55e+04
+   Expected (operandRight): inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != max" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): 6.55e+04" result="fail"/>
+    <failure tag="should FAIL: &#x002D;inf != &#x002D;max" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;inf
+   Expected (operandRight): &#x002D;6.55e+04" result="fail"/>
+    <failure tag="should FAIL: max != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : 6.55e+04
+   Expected (operandRight): &#x002D;inf" result="fail"/>
+    <failure tag="should FAIL: &#x002D;max != &#x002D;inf" message="Compared qfloat16s are not the same (fuzzy compare)
+   Actual   (operandLeft) : &#x002D;6.55e+04
+   Expected (operandRight): &#x002D;inf" result="fail"/>
   </testcase>
   <testcase result="fail" name="compareFloatTests">
     <failure tag="1e0" message="Compared floats are not the same (fuzzy compare)
diff --git a/tests/auto/testlib/selftests/expected_globaldata.lightxml b/tests/auto/testlib/selftests/expected_globaldata.lightxml
index f66c4c552d..1212e4b364 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.lightxml
+++ b/tests/auto/testlib/selftests/expected_globaldata.lightxml
@@ -12,174 +12,195 @@
 </TestFunction>
 <TestFunction name="testGlobal">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init testGlobal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[global: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init testGlobal local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[global: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[init testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init testGlobal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
     <Description><![CDATA[global: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
     <Description><![CDATA[local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[init testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init testGlobal local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[global: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skip">
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1]]></DataTag>
+    <DataTag><![CDATA[global=false]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skipLocal">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init skipLocal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init skipLocal local=false]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipLocal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init skipLocal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init skipLocal local=true]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipLocal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=true]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init skipLocal local=false]]></Description>
+</Message>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[skipping]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=false]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init skipLocal local=true]]></Description>
+</Message>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[skipping]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=true]]></Description>
 </Message>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skipSingle">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init skipSingle local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[global: false local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init skipSingle local=true]]></Description>
 </Message>
-<Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[global: false local: true]]></Description>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[Skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=true]]></Description>
 </Message>
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-</Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[init skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init skipSingle local=false]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[skipping]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[Skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[init skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init skipSingle local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[global: true local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
diff --git a/tests/auto/testlib/selftests/expected_globaldata.tap b/tests/auto/testlib/selftests/expected_globaldata.tap
index 580cf3a7a8..4d61b7437b 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.tap
+++ b/tests/auto/testlib/selftests/expected_globaldata.tap
@@ -2,51 +2,56 @@ TAP version 13
 # tst_globaldata
 # initTestCase initTestCase (null)
 ok 1 - initTestCase()
-# init testGlobal local 1
+# init testGlobal local=false
 # global: false
 # local: false
-# cleanup testGlobal local 1
-ok 2 - testGlobal(1:local 1)
-# init testGlobal local 2
+# cleanup testGlobal local=false
+ok 2 - testGlobal(global=false:local=false)
+# init testGlobal local=true
 # global: false
 # local: true
-# cleanup testGlobal local 2
-ok 3 - testGlobal(1:local 2)
-# init testGlobal local 1
+# cleanup testGlobal local=true
+ok 3 - testGlobal(global=false:local=true)
+# init testGlobal local=false
 # global: true
 # local: false
-# cleanup testGlobal local 1
-ok 4 - testGlobal(2:local 1)
-# init testGlobal local 2
+# cleanup testGlobal local=false
+ok 4 - testGlobal(global=true:local=false)
+# init testGlobal local=true
 # global: true
 # local: true
-# cleanup testGlobal local 2
-ok 5 - testGlobal(2:local 2)
-ok 6 - skip(1) # SKIP skipping
-# init skipLocal local 1
-ok 7 - skipLocal(1:local 1) # SKIP skipping
-# cleanup skipLocal local 1
-# init skipLocal local 2
-ok 8 - skipLocal(1:local 2) # SKIP skipping
-# cleanup skipLocal local 2
-# init skipSingle local 1
+# cleanup testGlobal local=true
+ok 5 - testGlobal(global=true:local=true)
+ok 6 - skip(global=false) # SKIP skipping
+# init skipLocal local=false
+ok 7 - skipLocal(global=false:local=false) # SKIP skipping
+# cleanup skipLocal local=false
+# init skipLocal local=true
+ok 8 - skipLocal(global=false:local=true) # SKIP skipping
+# cleanup skipLocal local=true
+# init skipLocal local=false
+ok 9 - skipLocal(global=true:local=false) # SKIP skipping
+# cleanup skipLocal local=false
+# init skipLocal local=true
+ok 10 - skipLocal(global=true:local=true) # SKIP skipping
+# cleanup skipLocal local=true
+# init skipSingle local=false
 # global: false local: false
-# cleanup skipSingle local 1
-ok 9 - skipSingle(1:local 1)
-# init skipSingle local 2
-# global: false local: true
-# cleanup skipSingle local 2
-ok 10 - skipSingle(1:local 2)
-# init skipSingle local 1
-ok 11 - skipSingle(2:local 1) # SKIP skipping
-# cleanup skipSingle local 1
-# init skipSingle local 2
+# cleanup skipSingle local=false
+ok 11 - skipSingle(global=false:local=false)
+# init skipSingle local=true
+ok 12 - skipSingle(global=false:local=true) # SKIP Skipping
+# cleanup skipSingle local=true
+# init skipSingle local=false
+ok 13 - skipSingle(global=true:local=false) # SKIP Skipping
+# cleanup skipSingle local=false
+# init skipSingle local=true
 # global: true local: true
-# cleanup skipSingle local 2
-ok 12 - skipSingle(2:local 2)
+# cleanup skipSingle local=true
+ok 14 - skipSingle(global=true:local=true)
 # cleanupTestCase cleanupTestCase (null)
-ok 13 - cleanupTestCase()
-1..13
-# tests 13
-# pass 9
+ok 15 - cleanupTestCase()
+1..15
+# tests 15
+# pass 8
 # fail 0
diff --git a/tests/auto/testlib/selftests/expected_globaldata.teamcity b/tests/auto/testlib/selftests/expected_globaldata.teamcity
index 5d623a3285..f76f6090ba 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.teamcity
+++ b/tests/auto/testlib/selftests/expected_globaldata.teamcity
@@ -2,30 +2,31 @@
 ##teamcity[testStarted name='initTestCase()' flowId='tst_globaldata']
 ##teamcity[testStdOut name='initTestCase()' out='QDEBUG: initTestCase initTestCase (null)' flowId='tst_globaldata']
 ##teamcity[testFinished name='initTestCase()' flowId='tst_globaldata']
-##teamcity[testStarted name='testGlobal(local 1)' flowId='tst_globaldata']
-##teamcity[testStdOut name='testGlobal(local 1)' out='QDEBUG: init testGlobal local 1|nQDEBUG: global: false|nQDEBUG: local: false|nQDEBUG: cleanup testGlobal local 1' flowId='tst_globaldata']
-##teamcity[testFinished name='testGlobal(local 1)' flowId='tst_globaldata']
-##teamcity[testStarted name='testGlobal(local 2)' flowId='tst_globaldata']
-##teamcity[testStdOut name='testGlobal(local 2)' out='QDEBUG: init testGlobal local 2|nQDEBUG: global: false|nQDEBUG: local: true|nQDEBUG: cleanup testGlobal local 2' flowId='tst_globaldata']
-##teamcity[testFinished name='testGlobal(local 2)' flowId='tst_globaldata']
-##teamcity[testStarted name='testGlobal(local 1)' flowId='tst_globaldata']
-##teamcity[testStdOut name='testGlobal(local 1)' out='QDEBUG: init testGlobal local 1|nQDEBUG: global: true|nQDEBUG: local: false|nQDEBUG: cleanup testGlobal local 1' flowId='tst_globaldata']
-##teamcity[testFinished name='testGlobal(local 1)' flowId='tst_globaldata']
-##teamcity[testStarted name='testGlobal(local 2)' flowId='tst_globaldata']
-##teamcity[testStdOut name='testGlobal(local 2)' out='QDEBUG: init testGlobal local 2|nQDEBUG: global: true|nQDEBUG: local: true|nQDEBUG: cleanup testGlobal local 2' flowId='tst_globaldata']
-##teamcity[testFinished name='testGlobal(local 2)' flowId='tst_globaldata']
+##teamcity[testStarted name='testGlobal(local=false)' flowId='tst_globaldata']
+##teamcity[testStdOut name='testGlobal(local=false)' out='QDEBUG: init testGlobal local=false|nQDEBUG: global: false|nQDEBUG: local: false|nQDEBUG: cleanup testGlobal local=false' flowId='tst_globaldata']
+##teamcity[testFinished name='testGlobal(local=false)' flowId='tst_globaldata']
+##teamcity[testStarted name='testGlobal(local=true)' flowId='tst_globaldata']
+##teamcity[testStdOut name='testGlobal(local=true)' out='QDEBUG: init testGlobal local=true|nQDEBUG: global: false|nQDEBUG: local: true|nQDEBUG: cleanup testGlobal local=true' flowId='tst_globaldata']
+##teamcity[testFinished name='testGlobal(local=true)' flowId='tst_globaldata']
+##teamcity[testStarted name='testGlobal(local=false)' flowId='tst_globaldata']
+##teamcity[testStdOut name='testGlobal(local=false)' out='QDEBUG: init testGlobal local=false|nQDEBUG: global: true|nQDEBUG: local: false|nQDEBUG: cleanup testGlobal local=false' flowId='tst_globaldata']
+##teamcity[testFinished name='testGlobal(local=false)' flowId='tst_globaldata']
+##teamcity[testStarted name='testGlobal(local=true)' flowId='tst_globaldata']
+##teamcity[testStdOut name='testGlobal(local=true)' out='QDEBUG: init testGlobal local=true|nQDEBUG: global: true|nQDEBUG: local: true|nQDEBUG: cleanup testGlobal local=true' flowId='tst_globaldata']
+##teamcity[testFinished name='testGlobal(local=true)' flowId='tst_globaldata']
 ##teamcity[testIgnored name='skip()' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
-##teamcity[testIgnored name='skipLocal(local 1)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
-##teamcity[testIgnored name='skipLocal(local 2)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
-##teamcity[testStarted name='skipSingle(local 1)' flowId='tst_globaldata']
-##teamcity[testStdOut name='skipSingle(local 1)' out='QDEBUG: init skipLocal local 1|nQDEBUG: cleanup skipLocal local 1|nQDEBUG: init skipLocal local 2|nQDEBUG: cleanup skipLocal local 2|nQDEBUG: init skipSingle local 1|nQDEBUG: global: false local: false|nQDEBUG: cleanup skipSingle local 1' flowId='tst_globaldata']
-##teamcity[testFinished name='skipSingle(local 1)' flowId='tst_globaldata']
-##teamcity[testStarted name='skipSingle(local 2)' flowId='tst_globaldata']
-##teamcity[testStdOut name='skipSingle(local 2)' out='QDEBUG: init skipSingle local 2|nQDEBUG: global: false local: true|nQDEBUG: cleanup skipSingle local 2' flowId='tst_globaldata']
-##teamcity[testFinished name='skipSingle(local 2)' flowId='tst_globaldata']
-##teamcity[testIgnored name='skipSingle(local 1)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
-##teamcity[testStdOut name='skipSingle(local 2)' out='QDEBUG: init skipSingle local 1|nQDEBUG: cleanup skipSingle local 1|nQDEBUG: init skipSingle local 2|nQDEBUG: global: true local: true|nQDEBUG: cleanup skipSingle local 2' flowId='tst_globaldata']
-##teamcity[testFinished name='skipSingle(local 2)' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipLocal(local=false)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipLocal(local=true)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipLocal(local=false)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipLocal(local=true)' message='skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testStarted name='skipSingle(local=false)' flowId='tst_globaldata']
+##teamcity[testStdOut name='skipSingle(local=false)' out='QDEBUG: init skipLocal local=false|nQDEBUG: cleanup skipLocal local=false|nQDEBUG: init skipLocal local=true|nQDEBUG: cleanup skipLocal local=true|nQDEBUG: init skipLocal local=false|nQDEBUG: cleanup skipLocal local=false|nQDEBUG: init skipLocal local=true|nQDEBUG: cleanup skipLocal local=true|nQDEBUG: init skipSingle local=false|nQDEBUG: global: false local: false|nQDEBUG: cleanup skipSingle local=false' flowId='tst_globaldata']
+##teamcity[testFinished name='skipSingle(local=false)' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipSingle(local=true)' message='Skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testIgnored name='skipSingle(local=false)' message='Skipping |[Loc: qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)|]' flowId='tst_globaldata']
+##teamcity[testStarted name='skipSingle(local=true)' flowId='tst_globaldata']
+##teamcity[testStdOut name='skipSingle(local=true)' out='QDEBUG: init skipSingle local=true|nQDEBUG: cleanup skipSingle local=true|nQDEBUG: init skipSingle local=false|nQDEBUG: cleanup skipSingle local=false|nQDEBUG: init skipSingle local=true|nQDEBUG: global: true local: true|nQDEBUG: cleanup skipSingle local=true' flowId='tst_globaldata']
+##teamcity[testFinished name='skipSingle(local=true)' flowId='tst_globaldata']
 ##teamcity[testStarted name='cleanupTestCase()' flowId='tst_globaldata']
 ##teamcity[testStdOut name='cleanupTestCase()' out='QDEBUG: cleanupTestCase cleanupTestCase (null)' flowId='tst_globaldata']
 ##teamcity[testFinished name='cleanupTestCase()' flowId='tst_globaldata']
diff --git a/tests/auto/testlib/selftests/expected_globaldata.txt b/tests/auto/testlib/selftests/expected_globaldata.txt
index b12f4a2a69..016b5e8299 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.txt
+++ b/tests/auto/testlib/selftests/expected_globaldata.txt
@@ -2,53 +2,61 @@
 Config: Using QtTest library
 QDEBUG : tst_globaldata::initTestCase() initTestCase initTestCase (null)
 PASS   : tst_globaldata::initTestCase()
-QDEBUG : tst_globaldata::testGlobal(1:local 1) init testGlobal local 1
-QDEBUG : tst_globaldata::testGlobal(1:local 1) global: false
-QDEBUG : tst_globaldata::testGlobal(1:local 1) local: false
-QDEBUG : tst_globaldata::testGlobal(1:local 1) cleanup testGlobal local 1
-PASS   : tst_globaldata::testGlobal(1:local 1)
-QDEBUG : tst_globaldata::testGlobal(1:local 2) init testGlobal local 2
-QDEBUG : tst_globaldata::testGlobal(1:local 2) global: false
-QDEBUG : tst_globaldata::testGlobal(1:local 2) local: true
-QDEBUG : tst_globaldata::testGlobal(1:local 2) cleanup testGlobal local 2
-PASS   : tst_globaldata::testGlobal(1:local 2)
-QDEBUG : tst_globaldata::testGlobal(2:local 1) init testGlobal local 1
-QDEBUG : tst_globaldata::testGlobal(2:local 1) global: true
-QDEBUG : tst_globaldata::testGlobal(2:local 1) local: false
-QDEBUG : tst_globaldata::testGlobal(2:local 1) cleanup testGlobal local 1
-PASS   : tst_globaldata::testGlobal(2:local 1)
-QDEBUG : tst_globaldata::testGlobal(2:local 2) init testGlobal local 2
-QDEBUG : tst_globaldata::testGlobal(2:local 2) global: true
-QDEBUG : tst_globaldata::testGlobal(2:local 2) local: true
-QDEBUG : tst_globaldata::testGlobal(2:local 2) cleanup testGlobal local 2
-PASS   : tst_globaldata::testGlobal(2:local 2)
-SKIP   : tst_globaldata::skip(1) skipping
+QDEBUG : tst_globaldata::testGlobal(global=false:local=false) init testGlobal local=false
+QDEBUG : tst_globaldata::testGlobal(global=false:local=false) global: false
+QDEBUG : tst_globaldata::testGlobal(global=false:local=false) local: false
+QDEBUG : tst_globaldata::testGlobal(global=false:local=false) cleanup testGlobal local=false
+PASS   : tst_globaldata::testGlobal(global=false:local=false)
+QDEBUG : tst_globaldata::testGlobal(global=false:local=true) init testGlobal local=true
+QDEBUG : tst_globaldata::testGlobal(global=false:local=true) global: false
+QDEBUG : tst_globaldata::testGlobal(global=false:local=true) local: true
+QDEBUG : tst_globaldata::testGlobal(global=false:local=true) cleanup testGlobal local=true
+PASS   : tst_globaldata::testGlobal(global=false:local=true)
+QDEBUG : tst_globaldata::testGlobal(global=true:local=false) init testGlobal local=false
+QDEBUG : tst_globaldata::testGlobal(global=true:local=false) global: true
+QDEBUG : tst_globaldata::testGlobal(global=true:local=false) local: false
+QDEBUG : tst_globaldata::testGlobal(global=true:local=false) cleanup testGlobal local=false
+PASS   : tst_globaldata::testGlobal(global=true:local=false)
+QDEBUG : tst_globaldata::testGlobal(global=true:local=true) init testGlobal local=true
+QDEBUG : tst_globaldata::testGlobal(global=true:local=true) global: true
+QDEBUG : tst_globaldata::testGlobal(global=true:local=true) local: true
+QDEBUG : tst_globaldata::testGlobal(global=true:local=true) cleanup testGlobal local=true
+PASS   : tst_globaldata::testGlobal(global=true:local=true)
+SKIP   : tst_globaldata::skip(global=false) skipping
    Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
-QDEBUG : tst_globaldata::skipLocal(1:local 1) init skipLocal local 1
-SKIP   : tst_globaldata::skipLocal(1:local 1) skipping
+QDEBUG : tst_globaldata::skipLocal(global=false:local=false) init skipLocal local=false
+SKIP   : tst_globaldata::skipLocal(global=false:local=false) skipping
    Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
-QDEBUG : tst_globaldata::skipLocal(1:local 1) cleanup skipLocal local 1
-QDEBUG : tst_globaldata::skipLocal(1:local 2) init skipLocal local 2
-SKIP   : tst_globaldata::skipLocal(1:local 2) skipping
+QDEBUG : tst_globaldata::skipLocal(global=false:local=false) cleanup skipLocal local=false
+QDEBUG : tst_globaldata::skipLocal(global=false:local=true) init skipLocal local=true
+SKIP   : tst_globaldata::skipLocal(global=false:local=true) skipping
    Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
-QDEBUG : tst_globaldata::skipLocal(1:local 2) cleanup skipLocal local 2
-QDEBUG : tst_globaldata::skipSingle(1:local 1) init skipSingle local 1
-QDEBUG : tst_globaldata::skipSingle(1:local 1) global: false local: false
-QDEBUG : tst_globaldata::skipSingle(1:local 1) cleanup skipSingle local 1
-PASS   : tst_globaldata::skipSingle(1:local 1)
-QDEBUG : tst_globaldata::skipSingle(1:local 2) init skipSingle local 2
-QDEBUG : tst_globaldata::skipSingle(1:local 2) global: false local: true
-QDEBUG : tst_globaldata::skipSingle(1:local 2) cleanup skipSingle local 2
-PASS   : tst_globaldata::skipSingle(1:local 2)
-QDEBUG : tst_globaldata::skipSingle(2:local 1) init skipSingle local 1
-SKIP   : tst_globaldata::skipSingle(2:local 1) skipping
+QDEBUG : tst_globaldata::skipLocal(global=false:local=true) cleanup skipLocal local=true
+QDEBUG : tst_globaldata::skipLocal(global=true:local=false) init skipLocal local=false
+SKIP   : tst_globaldata::skipLocal(global=true:local=false) skipping
    Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
-QDEBUG : tst_globaldata::skipSingle(2:local 1) cleanup skipSingle local 1
-QDEBUG : tst_globaldata::skipSingle(2:local 2) init skipSingle local 2
-QDEBUG : tst_globaldata::skipSingle(2:local 2) global: true local: true
-QDEBUG : tst_globaldata::skipSingle(2:local 2) cleanup skipSingle local 2
-PASS   : tst_globaldata::skipSingle(2:local 2)
+QDEBUG : tst_globaldata::skipLocal(global=true:local=false) cleanup skipLocal local=false
+QDEBUG : tst_globaldata::skipLocal(global=true:local=true) init skipLocal local=true
+SKIP   : tst_globaldata::skipLocal(global=true:local=true) skipping
+   Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
+QDEBUG : tst_globaldata::skipLocal(global=true:local=true) cleanup skipLocal local=true
+QDEBUG : tst_globaldata::skipSingle(global=false:local=false) init skipSingle local=false
+QDEBUG : tst_globaldata::skipSingle(global=false:local=false) global: false local: false
+QDEBUG : tst_globaldata::skipSingle(global=false:local=false) cleanup skipSingle local=false
+PASS   : tst_globaldata::skipSingle(global=false:local=false)
+QDEBUG : tst_globaldata::skipSingle(global=false:local=true) init skipSingle local=true
+SKIP   : tst_globaldata::skipSingle(global=false:local=true) Skipping
+   Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
+QDEBUG : tst_globaldata::skipSingle(global=false:local=true) cleanup skipSingle local=true
+QDEBUG : tst_globaldata::skipSingle(global=true:local=false) init skipSingle local=false
+SKIP   : tst_globaldata::skipSingle(global=true:local=false) Skipping
+   Loc: [qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp(0)]
+QDEBUG : tst_globaldata::skipSingle(global=true:local=false) cleanup skipSingle local=false
+QDEBUG : tst_globaldata::skipSingle(global=true:local=true) init skipSingle local=true
+QDEBUG : tst_globaldata::skipSingle(global=true:local=true) global: true local: true
+QDEBUG : tst_globaldata::skipSingle(global=true:local=true) cleanup skipSingle local=true
+PASS   : tst_globaldata::skipSingle(global=true:local=true)
 QDEBUG : tst_globaldata::cleanupTestCase() cleanupTestCase cleanupTestCase (null)
 PASS   : tst_globaldata::cleanupTestCase()
-Totals: 9 passed, 0 failed, 4 skipped, 0 blacklisted, 0ms
+Totals: 8 passed, 0 failed, 7 skipped, 0 blacklisted, 0ms
 ********* Finished testing of tst_globaldata *********
diff --git a/tests/auto/testlib/selftests/expected_globaldata.xml b/tests/auto/testlib/selftests/expected_globaldata.xml
index 0f705ef352..9aa48c8f16 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.xml
+++ b/tests/auto/testlib/selftests/expected_globaldata.xml
@@ -14,174 +14,195 @@
 </TestFunction>
 <TestFunction name="testGlobal">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init testGlobal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[global: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init testGlobal local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[global: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[init testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init testGlobal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
     <Description><![CDATA[global: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
     <Description><![CDATA[local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[init testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init testGlobal local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[global: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[cleanup testGlobal local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup testGlobal local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skip">
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1]]></DataTag>
+    <DataTag><![CDATA[global=false]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skipLocal">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init skipLocal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init skipLocal local=false]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipLocal local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init skipLocal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init skipLocal local=true]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
     <Description><![CDATA[skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipLocal local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=true]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init skipLocal local=false]]></Description>
+</Message>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[skipping]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=false]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init skipLocal local=true]]></Description>
+</Message>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[skipping]]></Description>
+</Message>
+<Message type="qdebug" file="" line="0">
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipLocal local=true]]></Description>
 </Message>
     <Duration msecs="0"/>
 </TestFunction>
 <TestFunction name="skipSingle">
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[init skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[init skipSingle local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
     <Description><![CDATA[global: false local: false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=false]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 1]]></DataTag>
+    <DataTag><![CDATA[global=false:local=false]]></DataTag>
 </Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[init skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[init skipSingle local=true]]></Description>
 </Message>
-<Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[global: false local: true]]></Description>
+<Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[Skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=false:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=true]]></Description>
 </Message>
-<Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[1:local 2]]></DataTag>
-</Incident>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[init skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[init skipSingle local=false]]></Description>
 </Message>
 <Message type="skip" file="qtbase/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[skipping]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[Skipping]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 1]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 1]]></Description>
+    <DataTag><![CDATA[global=true:local=false]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=false]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[init skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[init skipSingle local=true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
     <Description><![CDATA[global: true local: true]]></Description>
 </Message>
 <Message type="qdebug" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
-    <Description><![CDATA[cleanup skipSingle local 2]]></Description>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
+    <Description><![CDATA[cleanup skipSingle local=true]]></Description>
 </Message>
 <Incident type="pass" file="" line="0">
-    <DataTag><![CDATA[2:local 2]]></DataTag>
+    <DataTag><![CDATA[global=true:local=true]]></DataTag>
 </Incident>
     <Duration msecs="0"/>
 </TestFunction>
diff --git a/tests/auto/testlib/selftests/expected_globaldata.xunitxml b/tests/auto/testlib/selftests/expected_globaldata.xunitxml
index bdd7e3f00a..de184c2fdd 100644
--- a/tests/auto/testlib/selftests/expected_globaldata.xunitxml
+++ b/tests/auto/testlib/selftests/expected_globaldata.xunitxml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<testsuite errors="37" failures="0" tests="6" name="tst_globaldata">
+<testsuite errors="43" failures="0" tests="6" name="tst_globaldata">
   <properties>
     <property value="@INSERT_QT_VERSION_HERE@" name="QTestVersion"/>
     <property value="@INSERT_QT_VERSION_HERE@" name="QtVersion"/>
@@ -9,88 +9,100 @@
     <!-- message="initTestCase initTestCase (null)" type="qdebug" -->
   </testcase>
   <testcase result="pass" name="testGlobal">
-    <!-- tag="1:local 1" message="init testGlobal local 1" type="qdebug" -->
-    <!-- tag="1:local 1" message="global: false" type="qdebug" -->
-    <!-- tag="1:local 1" message="local: false" type="qdebug" -->
-    <!-- tag="1:local 1" message="cleanup testGlobal local 1" type="qdebug" -->
-    <!-- tag="1:local 2" message="init testGlobal local 2" type="qdebug" -->
-    <!-- tag="1:local 2" message="global: false" type="qdebug" -->
-    <!-- tag="1:local 2" message="local: true" type="qdebug" -->
-    <!-- tag="1:local 2" message="cleanup testGlobal local 2" type="qdebug" -->
-    <!-- tag="2:local 1" message="init testGlobal local 1" type="qdebug" -->
-    <!-- tag="2:local 1" message="global: true" type="qdebug" -->
-    <!-- tag="2:local 1" message="local: false" type="qdebug" -->
-    <!-- tag="2:local 1" message="cleanup testGlobal local 1" type="qdebug" -->
-    <!-- tag="2:local 2" message="init testGlobal local 2" type="qdebug" -->
-    <!-- tag="2:local 2" message="global: true" type="qdebug" -->
-    <!-- tag="2:local 2" message="local: true" type="qdebug" -->
-    <!-- tag="2:local 2" message="cleanup testGlobal local 2" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="init testGlobal local=false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="global: false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="local: false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="cleanup testGlobal local=false" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="init testGlobal local=true" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="global: false" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="local: true" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="cleanup testGlobal local=true" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="init testGlobal local=false" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="global: true" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="local: false" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="cleanup testGlobal local=false" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="init testGlobal local=true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="global: true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="local: true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="cleanup testGlobal local=true" type="qdebug" -->
   </testcase>
   <testcase name="skip">
-    <!-- tag="1" message="skipping" type="skip" -->
+    <!-- tag="global=false" message="skipping" type="skip" -->
   </testcase>
   <testcase name="skipLocal">
-    <!-- tag="1:local 1" message="init skipLocal local 1" type="qdebug" -->
-    <!-- tag="1:local 1" message="skipping" type="skip" -->
-    <!-- tag="1:local 1" message="cleanup skipLocal local 1" type="qdebug" -->
-    <!-- tag="1:local 2" message="init skipLocal local 2" type="qdebug" -->
-    <!-- tag="1:local 2" message="skipping" type="skip" -->
-    <!-- tag="1:local 2" message="cleanup skipLocal local 2" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="init skipLocal local=false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="skipping" type="skip" -->
+    <!-- tag="global=false:local=false" message="cleanup skipLocal local=false" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="init skipLocal local=true" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="skipping" type="skip" -->
+    <!-- tag="global=false:local=true" message="cleanup skipLocal local=true" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="init skipLocal local=false" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="skipping" type="skip" -->
+    <!-- tag="global=true:local=false" message="cleanup skipLocal local=false" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="init skipLocal local=true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="skipping" type="skip" -->
+    <!-- tag="global=true:local=true" message="cleanup skipLocal local=true" type="qdebug" -->
   </testcase>
   <testcase result="pass" name="skipSingle">
-    <!-- tag="1:local 1" message="init skipSingle local 1" type="qdebug" -->
-    <!-- tag="1:local 1" message="global: false local: false" type="qdebug" -->
-    <!-- tag="1:local 1" message="cleanup skipSingle local 1" type="qdebug" -->
-    <!-- tag="1:local 2" message="init skipSingle local 2" type="qdebug" -->
-    <!-- tag="1:local 2" message="global: false local: true" type="qdebug" -->
-    <!-- tag="1:local 2" message="cleanup skipSingle local 2" type="qdebug" -->
-    <!-- tag="2:local 1" message="init skipSingle local 1" type="qdebug" -->
-    <!-- tag="2:local 1" message="skipping" type="skip" -->
-    <!-- tag="2:local 1" message="cleanup skipSingle local 1" type="qdebug" -->
-    <!-- tag="2:local 2" message="init skipSingle local 2" type="qdebug" -->
-    <!-- tag="2:local 2" message="global: true local: true" type="qdebug" -->
-    <!-- tag="2:local 2" message="cleanup skipSingle local 2" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="init skipSingle local=false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="global: false local: false" type="qdebug" -->
+    <!-- tag="global=false:local=false" message="cleanup skipSingle local=false" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="init skipSingle local=true" type="qdebug" -->
+    <!-- tag="global=false:local=true" message="Skipping" type="skip" -->
+    <!-- tag="global=false:local=true" message="cleanup skipSingle local=true" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="init skipSingle local=false" type="qdebug" -->
+    <!-- tag="global=true:local=false" message="Skipping" type="skip" -->
+    <!-- tag="global=true:local=false" message="cleanup skipSingle local=false" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="init skipSingle local=true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="global: true local: true" type="qdebug" -->
+    <!-- tag="global=true:local=true" message="cleanup skipSingle local=true" type="qdebug" -->
   </testcase>
   <testcase result="pass" name="cleanupTestCase">
     <!-- message="cleanupTestCase cleanupTestCase (null)" type="qdebug" -->
   </testcase>
   <system-err>
 <![CDATA[initTestCase initTestCase (null)]]>
-<![CDATA[init testGlobal local 1]]>
+<![CDATA[init testGlobal local=false]]>
 <![CDATA[global: false]]>
 <![CDATA[local: false]]>
-<![CDATA[cleanup testGlobal local 1]]>
-<![CDATA[init testGlobal local 2]]>
+<![CDATA[cleanup testGlobal local=false]]>
+<![CDATA[init testGlobal local=true]]>
 <![CDATA[global: false]]>
 <![CDATA[local: true]]>
-<![CDATA[cleanup testGlobal local 2]]>
-<![CDATA[init testGlobal local 1]]>
+<![CDATA[cleanup testGlobal local=true]]>
+<![CDATA[init testGlobal local=false]]>
 <![CDATA[global: true]]>
 <![CDATA[local: false]]>
-<![CDATA[cleanup testGlobal local 1]]>
-<![CDATA[init testGlobal local 2]]>
+<![CDATA[cleanup testGlobal local=false]]>
+<![CDATA[init testGlobal local=true]]>
 <![CDATA[global: true]]>
 <![CDATA[local: true]]>
-<![CDATA[cleanup testGlobal local 2]]>
+<![CDATA[cleanup testGlobal local=true]]>
 <![CDATA[skipping]]>
-<![CDATA[init skipLocal local 1]]>
+<![CDATA[init skipLocal local=false]]>
 <![CDATA[skipping]]>
-<![CDATA[cleanup skipLocal local 1]]>
-<![CDATA[init skipLocal local 2]]>
+<![CDATA[cleanup skipLocal local=false]]>
+<![CDATA[init skipLocal local=true]]>
 <![CDATA[skipping]]>
-<![CDATA[cleanup skipLocal local 2]]>
-<![CDATA[init skipSingle local 1]]>
-<![CDATA[global: false local: false]]>
-<![CDATA[cleanup skipSingle local 1]]>
-<![CDATA[init skipSingle local 2]]>
-<![CDATA[global: false local: true]]>
-<![CDATA[cleanup skipSingle local 2]]>
-<![CDATA[init skipSingle local 1]]>
+<![CDATA[cleanup skipLocal local=true]]>
+<![CDATA[init skipLocal local=false]]>
+<![CDATA[skipping]]>
+<![CDATA[cleanup skipLocal local=false]]>
+<![CDATA[init skipLocal local=true]]>
 <![CDATA[skipping]]>
-<![CDATA[cleanup skipSingle local 1]]>
-<![CDATA[init skipSingle local 2]]>
+<![CDATA[cleanup skipLocal local=true]]>
+<![CDATA[init skipSingle local=false]]>
+<![CDATA[global: false local: false]]>
+<![CDATA[cleanup skipSingle local=false]]>
+<![CDATA[init skipSingle local=true]]>
+<![CDATA[Skipping]]>
+<![CDATA[cleanup skipSingle local=true]]>
+<![CDATA[init skipSingle local=false]]>
+<![CDATA[Skipping]]>
+<![CDATA[cleanup skipSingle local=false]]>
+<![CDATA[init skipSingle local=true]]>
 <![CDATA[global: true local: true]]>
-<![CDATA[cleanup skipSingle local 2]]>
+<![CDATA[cleanup skipSingle local=true]]>
 <![CDATA[cleanupTestCase cleanupTestCase (null)]]>
   </system-err>
 </testsuite>
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.lightxml b/tests/auto/testlib/selftests/expected_signaldumper.lightxml
new file mode 100644
index 0000000000..f68834e1a2
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.lightxml
@@ -0,0 +1,578 @@
+<Environment>
+    <QtVersion>@INSERT_QT_VERSION_HERE@</QtVersion>
+    <QtBuild/>
+    <QTestVersion>@INSERT_QT_VERSION_HERE@</QTestVersion>
+</Environment>
+<TestFunction name="initTestCase">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: QThread(_POINTER_) started ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="noConnections">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="oneSlot">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="oneSlotOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="twoSlots">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="twoSlotsOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="signalForwarding">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="signalForwardingOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="slotEmittingSignal">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="slotEmittingSignalOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) emitSecondSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="variousTypes">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="cleanupTestCase">
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: QThread(_POINTER_) finished ()]]></Description>
+</Message>
+<Duration msecs="0"/>
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.tap b/tests/auto/testlib/selftests/expected_signaldumper.tap
new file mode 100644
index 0000000000..04d7d94745
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.tap
@@ -0,0 +1,151 @@
+TAP version 13
+# tst_Signaldumper
+# Signal: QThread(_POINTER_) started ()
+ok 1 - initTestCase()
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+ok 2 - noConnections()
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 3 - oneSlot(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 4 - oneSlot(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 5 - oneSlotOldSyntax(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 6 - oneSlotOldSyntax(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 7 - twoSlots(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 8 - twoSlots(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+#     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+#     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 9 - twoSlotsOldSyntax(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 10 - twoSlotsOldSyntax(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 11 - signalForwarding(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+ok 12 - signalForwarding(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Slot: SignalSlotClass(_POINTER_) nestedSignal()
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)
+#     Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+#     Slot: SignalSlotClass(_POINTER_) nestedSignal()
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 13 - signalForwardingOldSyntax(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+# Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+ok 14 - signalForwardingOldSyntax(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 15 - slotEmittingSignal(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+ok 16 - slotEmittingSignal(queued)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+#     Slot: SignalSlotClass(_POINTER_) emitSecondSignal()
+#     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+ok 17 - slotEmittingSignalOldSyntax(direct)
+# Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+# Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+# Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+ok 18 - slotEmittingSignalOldSyntax(queued)
+# Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))
+# Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)
+# Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))
+# Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))
+# Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())
+# Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())
+# Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)
+# Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())
+# Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)
+# Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()
+# Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())
+# Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())
+ok 19 - variousTypes()
+ok 20 - cleanupTestCase()
+# Signal: QThread(_POINTER_) finished ()
+1..20
+# tests 20
+# pass 20
+# fail 0
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.teamcity b/tests/auto/testlib/selftests/expected_signaldumper.teamcity
new file mode 100644
index 0000000000..3b8cf8c54f
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.teamcity
@@ -0,0 +1,61 @@
+##teamcity[testSuiteStarted name='tst_Signaldumper' flowId='tst_Signaldumper']
+##teamcity[testStarted name='initTestCase()' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='initTestCase()' out='INFO: Signal: QThread(_POINTER_) started ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='initTestCase()' flowId='tst_Signaldumper']
+##teamcity[testStarted name='noConnections()' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='noConnections()' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))' flowId='tst_Signaldumper']
+##teamcity[testFinished name='noConnections()' flowId='tst_Signaldumper']
+##teamcity[testStarted name='oneSlot(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='oneSlot(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='oneSlot(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='oneSlot(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='oneSlot(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='oneSlot(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='oneSlotOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='oneSlotOldSyntax(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='oneSlotOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='oneSlotOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='oneSlotOldSyntax(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='oneSlotOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='twoSlots(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='twoSlots(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='twoSlots(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='twoSlots(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='twoSlots(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='twoSlots(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='twoSlotsOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='twoSlotsOldSyntax(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='twoSlotsOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='twoSlotsOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='twoSlotsOldSyntax(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='twoSlotsOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='signalForwarding(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='signalForwarding(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='signalForwarding(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='signalForwarding(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='signalForwarding(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='signalForwarding(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='signalForwardingOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='signalForwardingOldSyntax(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Slot: SignalSlotClass(_POINTER_) nestedSignal()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Slot: SignalSlotClass(_POINTER_) nestedSignal()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='signalForwardingOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='signalForwardingOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='signalForwardingOldSyntax(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))|nINFO: Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='signalForwardingOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='slotEmittingSignal(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='slotEmittingSignal(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='slotEmittingSignal(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='slotEmittingSignal(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='slotEmittingSignal(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='slotEmittingSignal(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='slotEmittingSignalOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='slotEmittingSignalOldSyntax(direct)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Slot: SignalSlotClass(_POINTER_) emitSecondSignal()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='slotEmittingSignalOldSyntax(direct)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='slotEmittingSignalOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='slotEmittingSignalOldSyntax(queued)' out='INFO: Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()|nINFO: Signal: QEventDispatcherPlatform(_POINTER_) awake ()|nINFO: Signal: SignalSlotClass(_POINTER_) nestedSignal ()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='slotEmittingSignalOldSyntax(queued)' flowId='tst_Signaldumper']
+##teamcity[testStarted name='variousTypes()' flowId='tst_Signaldumper']
+##teamcity[testStdOut name='variousTypes()' out='INFO: Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))|nINFO: Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)|nINFO: Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))|nINFO: Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))|nINFO: Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())|nINFO: Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())|nINFO: Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)|nINFO: Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())|nINFO: Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)|nINFO: Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()|nINFO: Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())|nINFO: Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())' flowId='tst_Signaldumper']
+##teamcity[testFinished name='variousTypes()' flowId='tst_Signaldumper']
+##teamcity[testStarted name='cleanupTestCase()' flowId='tst_Signaldumper']
+##teamcity[testFinished name='cleanupTestCase()' flowId='tst_Signaldumper']
+##teamcity[testSuiteFinished name='tst_Signaldumper' flowId='tst_Signaldumper']
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.txt b/tests/auto/testlib/selftests/expected_signaldumper.txt
new file mode 100644
index 0000000000..f89c31afe5
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.txt
@@ -0,0 +1,149 @@
+********* Start testing of tst_Signaldumper *********
+Config: Using QtTest library
+INFO   : tst_Signaldumper::initTestCase() Signal: QThread(_POINTER_) started ()
+PASS   : tst_Signaldumper::initTestCase()
+INFO   : tst_Signaldumper::noConnections() Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::noConnections() Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+PASS   : tst_Signaldumper::noConnections()
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlot(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::oneSlot(direct)
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlot(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::oneSlot(queued)
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::oneSlotOldSyntax(direct)
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::oneSlotOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::oneSlotOldSyntax(queued)
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlots(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::twoSlots(direct)
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlots(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::twoSlots(queued)
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::twoSlotsOldSyntax(direct)
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::twoSlotsOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::twoSlotsOldSyntax(queued)
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::signalForwarding(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwarding(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::signalForwarding(direct)
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwarding(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+PASS   : tst_Signaldumper::signalForwarding(queued)
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) nestedSignal()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) nestedSignal()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::signalForwardingOldSyntax(direct)
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::signalForwardingOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+PASS   : tst_Signaldumper::signalForwardingOldSyntax(queued)
+INFO   : tst_Signaldumper::slotEmittingSignal(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::slotEmittingSignal(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::slotEmittingSignal(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::slotEmittingSignal(direct)
+INFO   : tst_Signaldumper::slotEmittingSignal(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::slotEmittingSignal(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::slotEmittingSignal(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+PASS   : tst_Signaldumper::slotEmittingSignal(queued)
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(direct) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(direct)     Slot: SignalSlotClass(_POINTER_) emitSecondSignal()
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(direct)     Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(direct) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+PASS   : tst_Signaldumper::slotEmittingSignalOldSyntax(direct)
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(queued) Signal: QEventDispatcherPlatform(_POINTER_) awake ()
+INFO   : tst_Signaldumper::slotEmittingSignalOldSyntax(queued) Signal: SignalSlotClass(_POINTER_) nestedSignal ()
+PASS   : tst_Signaldumper::slotEmittingSignalOldSyntax(queued)
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())
+INFO   : tst_Signaldumper::variousTypes() Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())
+PASS   : tst_Signaldumper::variousTypes()
+PASS   : tst_Signaldumper::cleanupTestCase()
+INFO   : tst_Signaldumper::UnknownTestFunc() Signal: QThread(_POINTER_) finished ()
+Totals: 20 passed, 0 failed, 0 skipped, 0 blacklisted, 0ms
+********* Finished testing of tst_Signaldumper *********
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.xml b/tests/auto/testlib/selftests/expected_signaldumper.xml
new file mode 100644
index 0000000000..82959c62df
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.xml
@@ -0,0 +1,581 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<TestCase name="tst_Signaldumper">
+<Environment>
+    <QtVersion>@INSERT_QT_VERSION_HERE@</QtVersion>
+    <QtBuild/>
+    <QTestVersion>@INSERT_QT_VERSION_HERE@</QTestVersion>
+</Environment>
+<TestFunction name="initTestCase">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: QThread(_POINTER_) started ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="noConnections">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="oneSlot">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="oneSlotOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="twoSlots">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="twoSlotsOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="signalForwarding">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="signalForwardingOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="slotEmittingSignal">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="slotEmittingSignalOldSyntax">
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Slot: SignalSlotClass(_POINTER_) emitSecondSignal()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[direct]]></DataTag>
+</Incident>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]></Description>
+</Message>
+<Incident type="pass" file="" line="0">
+    <DataTag><![CDATA[queued]]></DataTag>
+</Incident>
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="variousTypes">
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]></Description>
+</Message>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]></Description>
+</Message>
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<TestFunction name="cleanupTestCase">
+<Incident type="pass" file="" line="0" />
+    <Duration msecs="0"/>
+</TestFunction>
+<Message type="info" file="" line="0">
+    <Description><![CDATA[Signal: QThread(_POINTER_) finished ()]]></Description>
+</Message>
+<Duration msecs="0"/>
+</TestCase>
diff --git a/tests/auto/testlib/selftests/expected_signaldumper.xunitxml b/tests/auto/testlib/selftests/expected_signaldumper.xunitxml
new file mode 100644
index 0000000000..930dc97262
--- /dev/null
+++ b/tests/auto/testlib/selftests/expected_signaldumper.xunitxml
@@ -0,0 +1,284 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<testsuite errors="125" failures="0" tests="12" name="tst_Signaldumper">
+  <properties>
+    <property value="@INSERT_QT_VERSION_HERE@" name="QTestVersion"/>
+    <property value="@INSERT_QT_VERSION_HERE@" name="QtVersion"/>
+    <property value="" name="QtBuild"/>
+  </properties>
+  <testcase result="pass" name="initTestCase">
+    <!-- message="Signal: QThread(_POINTER_) started ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="noConnections">
+    <!-- message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+  </testcase>
+  <testcase result="pass" name="oneSlot">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="oneSlotOldSyntax">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="twoSlots">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="twoSlotsOldSyntax">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="signalForwarding">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="signalForwardingOldSyntax">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) nestedSignal()" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) nestedSignal()" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="slotEmittingSignal">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="slotEmittingSignalOldSyntax">
+    <!-- tag="direct" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="direct" message="    Slot: SignalSlotClass(_POINTER_) emitSecondSignal()" type="info" -->
+    <!-- tag="direct" message="    Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+    <!-- tag="direct" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()" type="info" -->
+    <!-- tag="queued" message="Signal: QEventDispatcherPlatform(_POINTER_) awake ()" type="info" -->
+    <!-- tag="queued" message="Signal: SignalSlotClass(_POINTER_) nestedSignal ()" type="info" -->
+  </testcase>
+  <testcase result="pass" name="variousTypes">
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&amp;)@_POINTER_)" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qListSignal (QList&lt;int&gt;())" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector&lt;int&gt;())" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector&lt;int&gt;&amp;)@_POINTER_)" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector&lt;int&gt;())" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector&lt;int&gt;*)_POINTER_)" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())" type="info" -->
+    <!-- message="Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())" type="info" -->
+  </testcase>
+  <testcase result="pass" name="cleanupTestCase">
+    <!-- message="Signal: QThread(_POINTER_) finished ()" type="info" -->
+  </testcase>
+  <system-err>
+<![CDATA[Signal: QThread(_POINTER_) started ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithParameters(int,char)]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) slotWithoutParameters()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignalWithParameters(int,char)]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) nestedSignal()]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithParameters (int(242), char(m))]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[    Slot: SignalSlotClass(_POINTER_) emitSecondSignal()]]>
+<![CDATA[    Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) signalWithoutParameters ()]]>
+<![CDATA[Signal: QEventDispatcherPlatform(_POINTER_) awake ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) nestedSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qStringSignal (QString(Test string))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@_POINTER_)]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qStringConstRefSignal (QString(Test string))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qByteArraySignal (QByteArray(Test bytearray))]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qListSignal (QList<int>())]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorSignal (QVector<int>())]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorRefSignal ((QVector<int>&)@_POINTER_)]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstRefSignal (QVector<int>())]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorConstPointerSignal ((const QVector<int>*)_POINTER_)]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVectorPointerConstSignal ()]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]>
+<![CDATA[Signal: SignalSlotClass(_POINTER_) qVariantSignal (QVariant())]]>
+<![CDATA[Signal: QThread(_POINTER_) finished ()]]>
+  </system-err>
+</testsuite>
diff --git a/tests/auto/testlib/selftests/float/tst_float.cpp b/tests/auto/testlib/selftests/float/tst_float.cpp
index 49d00ac0e0..cefd8a57c4 100644
--- a/tests/auto/testlib/selftests/float/tst_float.cpp
+++ b/tests/auto/testlib/selftests/float/tst_float.cpp
@@ -46,6 +46,55 @@ private slots:
     void compareFloatTests_data() const;
 };
 
+template<typename F>
+static void nonFinite_data(F zero, F one)
+{
+    using Bounds = std::numeric_limits<F>;
+
+    // QCOMPARE special-cases non-finite values
+    if (Bounds::has_quiet_NaN) {
+        const F nan = Bounds::quiet_NaN();
+        QTest::newRow("should PASS: NaN == NaN") << nan << nan;
+        QTest::newRow("should FAIL: NaN != 0") << nan << zero;
+        QTest::newRow("should FAIL: 0 != NaN") << zero << nan;
+        QTest::newRow("should FAIL: NaN != 1") << nan << one;
+        QTest::newRow("should FAIL: 1 != NaN") << one << nan;
+    }
+
+    if (Bounds::has_infinity) {
+        const F uge = Bounds::infinity();
+        QTest::newRow("should PASS: inf == inf") << uge << uge;
+        QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
+        QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
+        QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
+        if (Bounds::has_quiet_NaN) {
+            const F nan = Bounds::quiet_NaN();
+            QTest::newRow("should FAIL: inf != nan") << uge << nan;
+            QTest::newRow("should FAIL: nan != inf") << nan << uge;
+            QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
+            QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
+        }
+        QTest::newRow("should FAIL: inf != 0") << uge << zero;
+        QTest::newRow("should FAIL: 0 != inf") << zero << uge;
+        QTest::newRow("should FAIL: -inf != 0") << -uge << zero;
+        QTest::newRow("should FAIL: 0 != -inf") << zero << -uge;
+        QTest::newRow("should FAIL: inf != 1") << uge << one;
+        QTest::newRow("should FAIL: 1 != inf") << one << uge;
+        QTest::newRow("should FAIL: -inf != 1") << -uge << one;
+        QTest::newRow("should FAIL: 1 != -inf") << one << -uge;
+
+        const F big = Bounds::max();
+        QTest::newRow("should FAIL: inf != max") << uge << big;
+        QTest::newRow("should FAIL: inf != -max") << uge << -big;
+        QTest::newRow("should FAIL: max != inf") << big << uge;
+        QTest::newRow("should FAIL: -max != inf") << -big << uge;
+        QTest::newRow("should FAIL: -inf != max") << -uge << big;
+        QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
+        QTest::newRow("should FAIL: max != -inf") << big << -uge;
+        QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
+    }
+}
+
 void tst_float::doubleComparisons() const
 {
     QFETCH(double, operandLeft);
@@ -58,65 +107,26 @@ void tst_float::doubleComparisons_data() const
 {
     QTest::addColumn<double>("operandLeft");
     QTest::addColumn<double>("operandRight");
+    double zero(0.), one(1.);
 
-    QTest::newRow("should PASS 1") << 0. << 0.;
-    QTest::newRow("should FAIL 1") << 1.00000 << 3.00000;
-    QTest::newRow("should FAIL 2") << 1.00000e-7 << 3.00000e-7;
+    QTest::newRow("should FAIL 1") << one << 3.;
+    QTest::newRow("should PASS 1") << zero << zero;
+    QTest::newRow("should FAIL 2") << 1.e-7 << 3.e-7;
 
     // QCOMPARE for doubles uses qFuzzyCompare(), which succeeds if the numbers
     // differ by no more than 1e-12 times the smaller value.  Thus
     // QCOMPARE(1e12-2, 1e12-1) should fail, while QCOMPARE(1e12+1, 1e12+2)
     // should pass.
 
-    QTest::newRow("should PASS 2") << 1e12 + 1. << 1e12 + 2.;
-    QTest::newRow("should FAIL 3") << 1e12 - 1. << 1e12 - 2.;
+    QTest::newRow("should PASS 2") << 1e12 + one << 1e12 + 2.;
+    QTest::newRow("should FAIL 3") << 1e12 - one << 1e12 - 2.;
     // ... but rounding makes that a bit unrelaible when scaled close to the bounds.
     QTest::newRow("should PASS 3") << 1e-310 + 1e-322 << 1e-310 + 2e-322;
     QTest::newRow("should FAIL 4") << 1e-310 - 1e-322 << 1e-310 - 3e-322;
     QTest::newRow("should PASS 4") << 1e307 + 1e295 << 1e307 + 2e295;
     QTest::newRow("should FAIL 5") << 1e307 - 1e295 << 1e307 - 3e295;
 
-    // QCOMPARE special-cases non-finite values
-    if (std::numeric_limits<double>::has_quiet_NaN) {
-        const double nan = std::numeric_limits<double>::quiet_NaN();
-        QTest::newRow("should PASS: NaN == NaN") << nan << nan;
-        QTest::newRow("should FAIL: NaN != 0") << nan << 0.;
-        QTest::newRow("should FAIL: 0 != NaN") << 0. << nan;
-        QTest::newRow("should FAIL: NaN != 1") << nan << 1.;
-        QTest::newRow("should FAIL: 1 != NaN") << 1. << nan;
-    }
-    if (std::numeric_limits<double>::has_infinity) {
-        const double uge = std::numeric_limits<double>::infinity();
-        QTest::newRow("should PASS: inf == inf") << uge << uge;
-        QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
-        QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
-        QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
-        if (std::numeric_limits<double>::has_quiet_NaN) {
-            const double nan = std::numeric_limits<double>::quiet_NaN();
-            QTest::newRow("should FAIL: inf != nan") << uge << nan;
-            QTest::newRow("should FAIL: nan != inf") << nan << uge;
-            QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
-            QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
-        }
-        QTest::newRow("should FAIL: inf != 0") << uge << 0.;
-        QTest::newRow("should FAIL: 0 != inf") << 0. << uge;
-        QTest::newRow("should FAIL: -inf != 0") << -uge << 0.;
-        QTest::newRow("should FAIL: 0 != -inf") << 0. << -uge;
-        QTest::newRow("should FAIL: inf != 1") << uge << 1.;
-        QTest::newRow("should FAIL: 1 != inf") << 1. << uge;
-        QTest::newRow("should FAIL: -inf != 1") << -uge << 1.;
-        QTest::newRow("should FAIL: 1 != -inf") << 1. << -uge;
-
-        const double big = std::numeric_limits<double>::max();
-        QTest::newRow("should FAIL: inf != max") << uge << big;
-        QTest::newRow("should FAIL: inf != -max") << uge << -big;
-        QTest::newRow("should FAIL: max != inf") << big << uge;
-        QTest::newRow("should FAIL: -max != inf") << -big << uge;
-        QTest::newRow("should FAIL: -inf != max") << -uge << big;
-        QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
-        QTest::newRow("should FAIL: max != -inf") << big << -uge;
-        QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
-    }
+    nonFinite_data(zero, one);
 }
 
 void tst_float::floatComparisons() const
@@ -131,65 +141,26 @@ void tst_float::floatComparisons_data() const
 {
     QTest::addColumn<float>("operandLeft");
     QTest::addColumn<float>("operandRight");
+    float zero(0.f), one(1.f);
 
-    QTest::newRow("should FAIL 1") << 1.00000f << 3.00000f;
-    QTest::newRow("should PASS 1") << 0.f << 0.f;
-    QTest::newRow("should FAIL 2") << 1.00000e-7f << 3.00000e-7f;
+    QTest::newRow("should FAIL 1") << one << 3.f;
+    QTest::newRow("should PASS 1") << zero << zero;
+    QTest::newRow("should FAIL 2") << 1.e-7f << 3.e-7f;
 
     // QCOMPARE for floats uses qFuzzyCompare(), which succeeds if the numbers
     // differ by no more than 1e-5 times the smaller value.  Thus
     // QCOMPARE(1e5-2, 1e5-1) should fail, while QCOMPARE(1e5+1, 1e5+2)
     // should pass.
 
-    QTest::newRow("should PASS 2") << 1e5f + 1.f << 1e5f + 2.f;
-    QTest::newRow("should FAIL 3") << 1e5f - 1.f << 1e5f - 2.f;
+    QTest::newRow("should PASS 2") << 1e5f + one << 1e5f + 2.f;
+    QTest::newRow("should FAIL 3") << 1e5f - one << 1e5f - 2.f;
     // ... but rounding makes that a bit unrelaible when scaled close to the bounds.
     QTest::newRow("should PASS 3") << 1e-39f + 1e-44f << 1e-39f + 2e-44f;
     QTest::newRow("should FAIL 4") << 1e-39f - 1e-44f << 1e-39f - 3e-44f;
     QTest::newRow("should PASS 4") << 1e38f + 1e33f << 1e38f + 2e33f;
     QTest::newRow("should FAIL 5") << 1e38f - 1e33f << 1e38f - 3e33f;
 
-    // QCOMPARE special-cases non-finite values
-    if (std::numeric_limits<float>::has_quiet_NaN) {
-        const float nan = std::numeric_limits<float>::quiet_NaN();
-        QTest::newRow("should PASS: NaN == NaN") << nan << nan;
-        QTest::newRow("should FAIL: NaN != 0") << nan << 0.f;
-        QTest::newRow("should FAIL: 0 != NaN") << 0.f << nan;
-        QTest::newRow("should FAIL: NaN != 1") << nan << 1.f;
-        QTest::newRow("should FAIL: 1 != NaN") << 1.f << nan;
-    }
-    if (std::numeric_limits<float>::has_infinity) {
-        const float uge = std::numeric_limits<float>::infinity();
-        QTest::newRow("should PASS: inf == inf") << uge << uge;
-        QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
-        QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
-        QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
-        if (std::numeric_limits<float>::has_quiet_NaN) {
-            const float nan = std::numeric_limits<float>::quiet_NaN();
-            QTest::newRow("should FAIL: inf != nan") << uge << nan;
-            QTest::newRow("should FAIL: nan != inf") << nan << uge;
-            QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
-            QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
-        }
-        QTest::newRow("should FAIL: inf != 0") << uge << 0.f;
-        QTest::newRow("should FAIL: 0 != inf") << 0.f << uge;
-        QTest::newRow("should FAIL: -inf != 0") << -uge << 0.f;
-        QTest::newRow("should FAIL: 0 != -inf") << 0.f << -uge;
-        QTest::newRow("should FAIL: inf != 1") << uge << 1.f;
-        QTest::newRow("should FAIL: 1 != inf") << 1.f << uge;
-        QTest::newRow("should FAIL: -inf != 1") << -uge << 1.f;
-        QTest::newRow("should FAIL: 1 != -inf") << 1.f << -uge;
-
-        const float big = std::numeric_limits<float>::max();
-        QTest::newRow("should FAIL: inf != max") << uge << big;
-        QTest::newRow("should FAIL: inf != -max") << uge << -big;
-        QTest::newRow("should FAIL: max != inf") << big << uge;
-        QTest::newRow("should FAIL: -max != inf") << -big << uge;
-        QTest::newRow("should FAIL: -inf != max") << -uge << big;
-        QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
-        QTest::newRow("should FAIL: max != -inf") << big << -uge;
-        QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
-    }
+    nonFinite_data(zero, one);
 }
 
 void tst_float::float16Comparisons() const
@@ -204,28 +175,22 @@ void tst_float::float16Comparisons_data() const
 {
     QTest::addColumn<qfloat16>("operandLeft");
     QTest::addColumn<qfloat16>("operandRight");
+    qfloat16 zero(0), one(1);
 
-    QTest::newRow("should SUCCEED 1")
-        << qfloat16(0)
-        << qfloat16(0);
-
-    QTest::newRow("should FAIL 1")
-        << qfloat16(1.000)
-        << qfloat16(3.000);
-
-    QTest::newRow("should FAIL 2")
-        << qfloat16(1.000e-4f)
-        << qfloat16(3.000e-4f);
+    QTest::newRow("should FAIL 1") << one << qfloat16(3);
+    QTest::newRow("should PASS 1") << zero << zero;
+    QTest::newRow("should FAIL 2") << qfloat16(1e-4f) << qfloat16(3e-4f);
 
     // QCOMPARE for qfloat16s uses qFuzzyCompare()
-
-    QTest::newRow("should FAIL 3")
-        << qfloat16(98)
-        << qfloat16(99);
-
-    QTest::newRow("should SUCCEED 2")
-        << qfloat16(1001)
-        << qfloat16(1002);
+    QTest::newRow("should PASS 2") << qfloat16(1001) << qfloat16(1002);
+    QTest::newRow("should FAIL 3") << qfloat16(98) << qfloat16(99);
+    // ... which gets a bit unreliable near to the type's bounds
+    QTest::newRow("should PASS 3") << qfloat16(6e-5f) + qfloat16(6e-7f) << qfloat16(6e-5f) + qfloat16(11e-7f);
+    QTest::newRow("should FAIL 4") << qfloat16(6e-5f) - qfloat16(7e-7f) << qfloat16(6e-5f) - qfloat16(13e-7f);
+    QTest::newRow("should PASS 4") << qfloat16(6e4) + qfloat16(700) << qfloat16(6e4) + qfloat16(1200);
+    QTest::newRow("should FAIL 5") << qfloat16(6e4) - qfloat16(600) << qfloat16(6e4) - qfloat16(1200);
+
+    nonFinite_data(zero, one);
 }
 
 void tst_float::compareFloatTests() const
diff --git a/tests/auto/testlib/selftests/generate_expected_output.py b/tests/auto/testlib/selftests/generate_expected_output.py
index 9ec87c8fc6..48ecbf0289 100755
--- a/tests/auto/testlib/selftests/generate_expected_output.py
+++ b/tests/auto/testlib/selftests/generate_expected_output.py
@@ -92,6 +92,17 @@ class Cleaner (object):
             (r'(Loc: \[[^[\]()]+)\(\d+\)', r'\1(0)'), # txt
             (r'(\[Loc: [^[\]()]+)\(\d+\)', r'\1(0)'), # teamcity
             (r'(<(?:Incident|Message)\b.*\bfile=.*\bline=)"\d+"', r'\1"0"'), # lightxml, xml
+            # Pointers printed by signal dumper:
+            (r'\(\b[a-f0-9]{8,}\b\)', r'(_POINTER_)'),
+            # Example/for reference:
+            # ((QString&)@55f5fbb8dd40)
+            # ((const QVector<int>*)7ffd671d4558)
+            (r'\((\((?:const )?\w+(?:<[^>]+>)?[*&]*\)@?)\b[a-f\d]{8,}\b\)', r'(\1_POINTER_)'),
+            # For xml output there is no '<', '>' or '&', so we need an alternate version for that:
+            # ((QVector&lt;int&gt;&amp;)@5608b455e640)
+            (r'\((\((?:const )?\w+(?:&lt;(?:[^&]|&(?!gt;))*&gt;)?(?:\*|&amp;)?\)@?)[a-z\d]+\b\)', r'(\1_POINTER_)'),
+            # QEventDispatcher{Glib,Win32,etc.}
+            (r'\bQEventDispatcher\w+\b', r'QEventDispatcherPlatform'),
             ),
                       precook = re.compile):
         """Private implementation details of __init__()."""
@@ -296,6 +307,7 @@ def generateTestData(testname, clean,
         "benchlibcounting": "-eventcounter",
         "printdatatags": "-datatags",
         "printdatatagswithglobaltags": "-datatags",
+        "signaldumper": "-vs",
         "silent": "-silent",
         "verbose1": "-v1",
         "verbose2": "-v2",
diff --git a/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp b/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp
index 6c0ae1f43c..3c5c2c8f37 100644
--- a/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp
+++ b/tests/auto/testlib/selftests/globaldata/tst_globaldata.cpp
@@ -66,9 +66,10 @@ void tst_globaldata::initTestCase()
 
 void tst_globaldata::initTestCase_data()
 {
-    QTest::addColumn<bool>("booli");
-    QTest::newRow("1") << false;
-    QTest::newRow("2") << true;
+    // QFETCH_GLOBAL shall iterate these, for every test:
+    QTest::addColumn<bool>("global");
+    QTest::newRow("global=false") << false;
+    QTest::newRow("global=true") << true;
 }
 
 void tst_globaldata::cleanupTestCase()
@@ -94,41 +95,42 @@ void tst_globaldata::cleanup()
 
 void tst_globaldata::testGlobal_data()
 {
-    QTest::addColumn<bool>("booll");
-    QTest::newRow("local 1") << false;
-    QTest::newRow("local 2") << true;
+    QTest::addColumn<bool>("local");
+    QTest::newRow("local=false") << false;
+    QTest::newRow("local=true") << true;
 }
 
 void tst_globaldata::testGlobal()
 {
-    QFETCH_GLOBAL(bool, booli);
-    qDebug() << "global:" << booli;
-    QFETCH(bool, booll);
-    qDebug() << "local:" << booll;
+    QFETCH_GLOBAL(bool, global);
+    qDebug() << "global:" << global;
+    QFETCH(bool, local);
+    qDebug() << "local:" << local;
 }
 
 void tst_globaldata::skip_data()
 {
-    QTest::addColumn<bool>("booll");
-    QTest::newRow("local 1") << false;
-    QTest::newRow("local 2") << true;
-
+    testGlobal_data();
     QSKIP("skipping");
 }
 
 void tst_globaldata::skip()
 {
-    qDebug() << "this line should never be reached";
+    // A skip in _data() causes the whole test to be skipped, for all global rows.
+    QVERIFY(!"This line should never be reached.");
 }
 
 void tst_globaldata::skipSingle()
 {
-    QFETCH_GLOBAL(bool, booli);
-    QFETCH(bool, booll);
-
-    if (booli && !booll)
-        QSKIP("skipping");
-    qDebug() << "global:" << booli << "local:" << booll;
+    QFETCH_GLOBAL(bool, global);
+    QFETCH(bool, local);
+
+    // A skip in the last run of one global row used to suppress the test in the
+    // next global row (where a skip in an earlier run of the first row did not).
+    if (global ^ local)
+        QSKIP("Skipping");
+    qDebug() << "global:" << global << "local:" << local;
+    QCOMPARE(global, local);
 }
 
 void tst_globaldata::skipLocal()
diff --git a/tests/auto/testlib/selftests/selftests.pri b/tests/auto/testlib/selftests/selftests.pri
index b4568dd3e1..2cad0b7e17 100644
--- a/tests/auto/testlib/selftests/selftests.pri
+++ b/tests/auto/testlib/selftests/selftests.pri
@@ -1,5 +1,4 @@
 SUBPROGRAMS = \
-     #alive \
      assert \
      badxml \
      benchlibcallgrind \
@@ -37,6 +36,7 @@ SUBPROGRAMS = \
      printdatatagswithglobaltags \
      qexecstringlist \
      silent \
+     signaldumper \
      singleskip \
      skip \
      skipcleanup \
diff --git a/tests/auto/testlib/selftests/signaldumper/signaldumper.pro b/tests/auto/testlib/selftests/signaldumper/signaldumper.pro
new file mode 100644
index 0000000000..8780b18419
--- /dev/null
+++ b/tests/auto/testlib/selftests/signaldumper/signaldumper.pro
@@ -0,0 +1,9 @@
+SOURCES += tst_signaldumper.cpp
+QT = core testlib-private
+
+macos:CONFIG -= app_bundle
+CONFIG -= debug_and_release_target
+
+TARGET = signaldumper
+
+include($$QT_SOURCE_TREE/src/testlib/selfcover.pri)
diff --git a/tests/auto/testlib/selftests/signaldumper/tst_signaldumper.cpp b/tests/auto/testlib/selftests/signaldumper/tst_signaldumper.cpp
new file mode 100644
index 0000000000..f6cd0d510e
--- /dev/null
+++ b/tests/auto/testlib/selftests/signaldumper/tst_signaldumper.cpp
@@ -0,0 +1,417 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/QCoreApplication>
+#include <QtTest/QtTest>
+#include <private/qtestlog_p.h>
+
+class tst_Signaldumper : public QObject
+{
+    Q_OBJECT
+
+    void addConnectionTypeData();
+
+private slots:
+    void noConnections();
+    void oneSlot_data();
+    void oneSlot();
+    void oneSlotOldSyntax_data();
+    void oneSlotOldSyntax();
+    void twoSlots_data();
+    void twoSlots();
+    void twoSlotsOldSyntax_data();
+    void twoSlotsOldSyntax();
+    void signalForwarding_data();
+    void signalForwarding();
+    void signalForwardingOldSyntax_data();
+    void signalForwardingOldSyntax();
+    void slotEmittingSignal_data();
+    void slotEmittingSignal();
+    void slotEmittingSignalOldSyntax_data();
+    void slotEmittingSignalOldSyntax();
+
+    void variousTypes();
+};
+
+void tst_Signaldumper::addConnectionTypeData()
+{
+    QTest::addColumn<Qt::ConnectionType>("connectionType");
+    QTest::newRow("direct") << Qt::ConnectionType::DirectConnection;
+    QTest::newRow("queued") << Qt::ConnectionType::QueuedConnection;
+}
+
+/*
+    Simple class to keep the slots and signals separate from the test
+*/
+class SignalSlotClass : public QObject
+{
+    Q_OBJECT
+
+public:
+    SignalSlotClass();
+
+public slots:
+    void slotWithoutParameters() {}
+    void slotWithParameters(int i, char c) { Q_UNUSED(i); Q_UNUSED(c); }
+    void emitSecondSignal() { emit nestedSignal(); }
+
+signals:
+    void signalWithoutParameters();
+    void signalWithParameters(int i, char c);
+
+    void nestedSignal();
+    void nestedSignalWithParameters(int i, char c);
+
+    // For the "variousTypes" test
+    void qStringSignal(QString string);
+    void qStringRefSignal(QString &string);
+    void qStringConstRefSignal(const QString &string);
+    void qByteArraySignal(QByteArray byteArray);
+    void qListSignal(QList<int> list);
+    void qVectorSignal(QVector<int> vector);
+    void qVectorRefSignal(QVector<int> &vector);
+    void qVectorConstRefSignal(const QVector<int> &vector);
+    void qVectorConstPointerSignal(const QVector<int> *vector);
+    void qVectorPointerConstSignal(QVector<int> *const vector);
+    void qVariantSignal(QVariant variant);
+};
+
+SignalSlotClass::SignalSlotClass()
+{
+    // For printing signal argument in "variousTypes" test
+    qRegisterMetaType<QVector<int>>();
+    qRegisterMetaType<QList<int>>();
+}
+
+void tst_Signaldumper::noConnections()
+{
+    SignalSlotClass signalSlotOwner;
+
+    emit signalSlotOwner.signalWithoutParameters();
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+}
+
+void tst_Signaldumper::oneSlot_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::oneSlot()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+    // parameterless to parameterless
+    auto connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithoutParameters,
+                              &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameters to parameters
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithParameters, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameters to no parameters
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::oneSlotOldSyntax_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::oneSlotOldSyntax()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+    // parameterless to parameterless
+    auto connection = connect(&signalSlotOwner, SIGNAL(signalWithoutParameters()),
+                              &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameters to parameters
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithParameters(int, char)), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameters to no parameters
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::twoSlots_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::twoSlots()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    // Now, instead of creating two slots or two objects, we will just do the same connection twice.
+    // The same slot will then be invoked twice.
+
+    SignalSlotClass signalSlotOwner;
+    // parameterless to parameterless
+    auto connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithoutParameters,
+                              &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    auto connection2 = connect(&signalSlotOwner, &SignalSlotClass::signalWithoutParameters,
+                              &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+
+    // parameters to parameters
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithParameters, connectionType);
+    connection2 = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithParameters, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+
+    // parameters to no parameters
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    connection2 = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::slotWithoutParameters, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+}
+
+void tst_Signaldumper::twoSlotsOldSyntax_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::twoSlotsOldSyntax()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    // Now, instead of creating two slots or two objects, we will just do the same connection twice.
+    // The same slot will then be invoked twice.
+
+    SignalSlotClass signalSlotOwner;
+    // parameterless to parameterless
+    auto connection = connect(&signalSlotOwner, SIGNAL(signalWithoutParameters()),
+                              &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    auto connection2 = connect(&signalSlotOwner, SIGNAL(signalWithoutParameters()),
+                              &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+
+    // parameters to parameters
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithParameters(int, char)), connectionType);
+    connection2 = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithParameters(int, char)), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+
+    // parameters to no parameters
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    connection2 = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SLOT(slotWithoutParameters()), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+    disconnect(connection2);
+}
+
+void tst_Signaldumper::signalForwarding_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::signalForwarding()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+
+    // parameterless signal to parameterless signal
+    auto connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithoutParameters,
+                              &signalSlotOwner, &SignalSlotClass::nestedSignal, connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameter(full) signal to parameter(full) signal
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::nestedSignalWithParameters, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameter(full) signal to parameterless signal
+    connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithParameters,
+                         &signalSlotOwner, &SignalSlotClass::nestedSignal, connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::signalForwardingOldSyntax_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::signalForwardingOldSyntax()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+
+    // parameterless signal to parameterless signal
+    auto connection = connect(&signalSlotOwner, SIGNAL(signalWithoutParameters()),
+                              &signalSlotOwner, SIGNAL(nestedSignal()), connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameter(full) signal to parameter(full) signal
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SIGNAL(nestedSignalWithParameters(int, char)), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+
+    // parameter(full) signal to parameterless signal
+    connection = connect(&signalSlotOwner, SIGNAL(signalWithParameters(int, char)),
+                         &signalSlotOwner, SIGNAL(nestedSignal()), connectionType);
+    emit signalSlotOwner.signalWithParameters(242, 'm');
+
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::slotEmittingSignal_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::slotEmittingSignal()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+
+    auto connection = connect(&signalSlotOwner, &SignalSlotClass::signalWithoutParameters,
+                              &signalSlotOwner, &SignalSlotClass::emitSecondSignal, connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::slotEmittingSignalOldSyntax_data()
+{
+    addConnectionTypeData();
+}
+
+void tst_Signaldumper::slotEmittingSignalOldSyntax()
+{
+    QFETCH(Qt::ConnectionType, connectionType);
+
+    SignalSlotClass signalSlotOwner;
+
+    auto connection = connect(&signalSlotOwner, SIGNAL(signalWithoutParameters()),
+                              &signalSlotOwner, SLOT(emitSecondSignal()), connectionType);
+    emit signalSlotOwner.signalWithoutParameters();
+    QCoreApplication::processEvents();
+    disconnect(connection);
+}
+
+void tst_Signaldumper::variousTypes()
+{
+    SignalSlotClass signalSlotOwner;
+    QString string = QString::fromLatin1("Test string");
+    emit signalSlotOwner.qStringSignal(string);
+    emit signalSlotOwner.qStringRefSignal(string);
+    emit signalSlotOwner.qStringConstRefSignal(string);
+    emit signalSlotOwner.qByteArraySignal(QByteArray("Test bytearray"));
+
+    QList<int> list{1, 2, 3, 242};
+    emit signalSlotOwner.qListSignal(list);
+
+    QVector<int> vector{1, 2, 3, 242};
+    emit signalSlotOwner.qVectorSignal(vector);
+    emit signalSlotOwner.qVectorRefSignal(vector);
+    emit signalSlotOwner.qVectorConstRefSignal(vector);
+    emit signalSlotOwner.qVectorConstPointerSignal(&vector);
+    emit signalSlotOwner.qVectorPointerConstSignal(&vector);
+
+    QVariant variant = 24;
+    emit signalSlotOwner.qVariantSignal(variant);
+    variant = QVariant(string);
+    emit signalSlotOwner.qVariantSignal(variant);
+}
+
+QTEST_MAIN(tst_Signaldumper)
+#include "tst_signaldumper.moc"
diff --git a/tests/auto/testlib/selftests/silent/tst_silent.cpp b/tests/auto/testlib/selftests/silent/tst_silent.cpp
index 97fbbfd30a..cf3c35dec4 100644
--- a/tests/auto/testlib/selftests/silent/tst_silent.cpp
+++ b/tests/auto/testlib/selftests/silent/tst_silent.cpp
@@ -72,6 +72,17 @@ void tst_Silent::xpass()
     QVERIFY2(true, "This test should XPASS");
 }
 
+#ifndef Q_OS_WIN
+#include <signal.h>
+#include <setjmp.h>
+
+static jmp_buf state;
+static void abort_handler(int signal)
+{
+    longjmp(state, 1);
+}
+#endif
+
 void tst_Silent::messages()
 {
     qWarning("This is a warning that should not appear in silent test output");
@@ -80,7 +91,15 @@ void tst_Silent::messages()
     qCritical("This is a critical message that should not appear in silent test output");
     qInfo("This is an info message that should not appear in silent test output");
     QTestLog::info("This is an internal testlib info message that should not appear in silent test output", __FILE__, __LINE__);
-    qFatal("This is a fatal error message that should still appear in silent test output");
+
+#ifndef Q_OS_WIN
+    // We're testing qFatal, but we don't want to actually std::abort() !
+    auto prior = signal(SIGABRT, abort_handler);
+    if (setjmp(state))
+        signal(SIGABRT, prior);
+    else
+#endif
+        qFatal("This is a fatal error message that should still appear in silent test output");
 }
 
 QTEST_MAIN(tst_Silent)
diff --git a/tests/auto/testlib/selftests/tst_selftests.cpp b/tests/auto/testlib/selftests/tst_selftests.cpp
index 3ef15b9261..1326b96177 100644
--- a/tests/auto/testlib/selftests/tst_selftests.cpp
+++ b/tests/auto/testlib/selftests/tst_selftests.cpp
@@ -439,7 +439,6 @@ void tst_Selftests::runSubTest_data()
     QTest::addColumn<bool>("crashes");
 
     QStringList tests = QStringList()
-//        << "alive"    // timer dependent
 #if !defined(Q_OS_WIN)
         // On windows, assert does nothing in release mode and blocks execution
         // with a popup window in debug mode.
@@ -488,6 +487,7 @@ void tst_Selftests::runSubTest_data()
         << "printdatatags"
         << "printdatatagswithglobaltags"
         << "qexecstringlist"
+        << "signaldumper"
         << "silent"
         << "singleskip"
         << "skip"
@@ -553,6 +553,9 @@ void tst_Selftests::runSubTest_data()
             else if (subtest == "printdatatagswithglobaltags") {
                 arguments << "-datatags";
             }
+            else if (subtest == "signaldumper") {
+                arguments << "-vs";
+            }
             else if (subtest == "silent") {
                 arguments << "-silent";
             }
@@ -953,6 +956,29 @@ bool tst_Selftests::compareLine(const QString &logger, const QString &subdir,
     if (actualLine.startsWith(QLatin1String("Totals:")) && expectedLine.startsWith(QLatin1String("Totals:")))
         return true;
 
+    const QLatin1String pointerPlaceholder("_POINTER_");
+    if (expectedLine.contains(pointerPlaceholder)
+        && (expectedLine.contains(QLatin1String("Signal: "))
+            || expectedLine.contains(QLatin1String("Slot: ")))) {
+        QString actual = actualLine;
+        // We don't care about the pointer of the object to whom the signal belongs, so we
+        // replace it with _POINTER_, e.g.:
+        // Signal: SignalSlotClass(7ffd72245410) signalWithoutParameters ()
+        // Signal: QThread(7ffd72245410) started ()
+        // After this instance pointer we may have further pointers and
+        // references (with an @ prefix) as parameters of the signal or
+        // slot being invoked.
+        // Signal: SignalSlotClass(_POINTER_) qStringRefSignal ((QString&)@55f5fbb8dd40)
+        actual.replace(QRegularExpression("\\b[a-f0-9]{8,}\\b"), pointerPlaceholder);
+        // Also change QEventDispatcher{Glib,Win32,etc.} to QEventDispatcherPlatform
+        actual.replace(QRegularExpression("\\b(QEventDispatcher)\\w+\\b"), QLatin1String("\\1Platform"));
+        if (actual != expectedLine) {
+          *errorMessage = msgMismatch(actual, expectedLine);
+          return false;
+        }
+        return true;
+    }
+
     *errorMessage = msgMismatch(actualLine, expectedLine);
     return false;
 }
diff --git a/tests/auto/tools/moc/cxx-attributes.h b/tests/auto/tools/moc/cxx-attributes.h
new file mode 100644
index 0000000000..eff6a3ec41
--- /dev/null
+++ b/tests/auto/tools/moc/cxx-attributes.h
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef CXXATTRIBUTE_H
+#define CXXATTRIBUTE_H
+
+#include <QtCore/QObject>
+
+class CppAttribute : public QObject
+{
+    Q_OBJECT
+signals:
+    [[deprecated]] void deprecatedSignal();
+
+public slots:
+    [[deprecated]] void deprecatedSlot() {}
+    [[deprecated]] [[tst_moc::maybe_unused]] int deprecatedSlot2() { return 42; }
+    [[deprecated("reason")]] void deprecatedReason() {}
+    [[deprecated("reason[")]] void deprecatedReasonWithLBRACK() {}
+    [[deprecated("reason[[")]] void deprecatedReasonWith2LBRACK() {}
+    [[deprecated("reason]")]] void deprecatedReasonWithRBRACK() {}
+    [[deprecated("reason]]")]] void deprecatedReasonWith2RBRACK() {}
+    void slotWithArguments([[tst_moc::maybe_unused]] int) {}
+#if !defined(_MSC_VER) || _MSC_VER >= 1912
+    // On MSVC it causes:
+    // moc_cxx-attributes.cpp(133): fatal error C1001: An internal error has occurred in the compiler.
+    Q_INVOKABLE [[tst_moc::noreturn]] void noreturnSlot() { throw "unused"; }
+    [[tst_moc::noreturn]] Q_SCRIPTABLE void noreturnSlot2() { throw "unused"; }
+    [[deprecated]] int returnInt() { return 0; }
+    Q_SLOT [[tst_moc::noreturn]] [[deprecated]] void noreturnDeprecatedSlot() { throw "unused"; }
+    Q_INVOKABLE void noreturnSlot3() [[tst_moc::noreturn]] { throw "unused"; }
+#endif
+};
+
+#ifdef Q_MOC_RUN
+#  define TEST_COMPILER_DEPRECATION [[deprecated]]
+#  define TEST_COMPILER_DEPRECATION_X(x) [[deprecated(x)]]
+#else
+#  define TEST_COMPILER_DEPRECATION Q_DECL_ENUMERATOR_DEPRECATED
+#  define TEST_COMPILER_DEPRECATION_X(x) Q_DECL_ENUMERATOR_DEPRECATED_X(x)
+#endif
+
+namespace TestQNamespaceDeprecated {
+    Q_NAMESPACE
+    enum class TestEnum1 {
+        Key1 = 11,
+        Key2 TEST_COMPILER_DEPRECATION,
+        Key3 TEST_COMPILER_DEPRECATION_X("reason"),
+        Key4 TEST_COMPILER_DEPRECATION_X("reason["),
+        Key5 TEST_COMPILER_DEPRECATION_X("reason[["),
+        Key6 TEST_COMPILER_DEPRECATION_X("reason]"),
+        Key7 TEST_COMPILER_DEPRECATION_X("reason]]"),
+    };
+    Q_ENUM_NS(TestEnum1)
+
+    // try to dizzy moc by adding a struct in between
+    struct TestGadget {
+        Q_GADGET
+    public:
+        enum class TestGEnum1 {
+            Key1 = 13,
+            Key2 TEST_COMPILER_DEPRECATION,
+            Key3 TEST_COMPILER_DEPRECATION_X("reason")
+        };
+        Q_ENUM(TestGEnum1)
+    };
+
+    enum class TestFlag1 {
+        None = 0,
+        Flag1 = 1,
+        Flag2 TEST_COMPILER_DEPRECATION = 2,
+        Flag3 TEST_COMPILER_DEPRECATION_X("reason") = 3,
+        Any = Flag1 | Flag2 | Flag3
+    };
+    Q_FLAG_NS(TestFlag1)
+}
+
+#endif // CXXATTRIBUTE_H
diff --git a/tests/auto/tools/moc/cxx11-enums.h b/tests/auto/tools/moc/cxx11-enums.h
index cc14c0acda..d5bd228f12 100644
--- a/tests/auto/tools/moc/cxx11-enums.h
+++ b/tests/auto/tools/moc/cxx11-enums.h
@@ -30,7 +30,6 @@
 #define CXX11_ENUMS_H
 #include <QtCore/QObject>
 
-#if defined(Q_COMPILER_CLASS_ENUM) || defined(Q_MOC_RUN)
 class CXX11Enums
 {
     Q_GADGET
@@ -73,21 +72,4 @@ public:
     Q_FLAGS(ClassFlags)
 };
 
-#else
-//workaround to get the moc compiled code to compile
-class CXX11Enums
-{
-    Q_GADGET
-public:
-    struct EnumClass { enum { A0, A1, A2, A3 }; };
-    struct TypedEnumClass { enum { C0, C1, C2, C3 }; };
-    enum NormalEnum { D2 = 2, D3, D0 =0 , D1 };
-    enum TypedEnum { B0, B1 , B2, B3 };
-};
-
-class CXX11Enums2 : public CXX11Enums
-{
-    Q_GADGET
-};
-#endif
 #endif // CXX11_ENUMS_H
diff --git a/tests/auto/tools/moc/moc.pro b/tests/auto/tools/moc/moc.pro
index 3cbc9ebb5e..ad8c093add 100644
--- a/tests/auto/tools/moc/moc.pro
+++ b/tests/auto/tools/moc/moc.pro
@@ -29,7 +29,8 @@ HEADERS += using-namespaces.h no-keywords.h task87883.h c-comments.h backslash-n
            non-gadget-parent-class.h grand-parent-gadget-class.h \
            related-metaobjects-in-gadget.h \
            related-metaobjects-name-conflict.h \
-           namespace.h cxx17-namespaces.h
+           namespace.h cxx17-namespaces.h \
+           cxx-attributes.h
 
 
 if(*-g++*|*-icc*|*-clang*|*-llvm):!win32-*: HEADERS += os9-newlines.h win-newlines.h
diff --git a/tests/auto/tools/moc/parse-defines.h b/tests/auto/tools/moc/parse-defines.h
index 7b0fa29d7c..bd22b0b9af 100644
--- a/tests/auto/tools/moc/parse-defines.h
+++ b/tests/auto/tools/moc/parse-defines.h
@@ -51,7 +51,6 @@
 
 #define PD_CLASSINFO Q_CLASSINFO
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) || defined (Q_MOC_RUN)
 #define PD_VARARG(x, ...) x(__VA_ARGS__)
 
 #if defined(Q_CC_GNU) || defined(Q_MOC_RUN)
@@ -61,7 +60,6 @@
 #define PD_VARARGEXT(x, ...) x(__VA_ARGS__)
 #endif
 
-#endif
 
 #define PD_ADD_SUFFIX(x)  PD_DEFINE1(x,_SUFFIX)
 #define PD_DEFINE_ITSELF PD_ADD_SUFFIX(PD_DEFINE_ITSELF)
@@ -100,7 +98,6 @@ public slots:
 
     PD_TEST_IDENTIFIER_ARG(void, combined6()) {}
 
-#if defined(Q_COMPILER_VARIADIC_MACROS) || defined (Q_MOC_RUN)
     PD_VARARG(void vararg1) {}
     PD_VARARG(void vararg2, int) {}
     PD_VARARG(void vararg3, int, int) {}
@@ -108,14 +105,6 @@ public slots:
     PD_VARARGEXT(void vararg4) {}
     PD_VARARGEXT(void vararg5, int) {}
     PD_VARARGEXT(void vararg6, int, int) {}
-#else
-    void vararg1() {}
-    void vararg2(int) {}
-    void vararg3(int,int) {}
-    void vararg4() {}
-    void vararg5(int) {}
-    void vararg6(int,int) {}
-#endif
 
 #define OUTERFUNCTION(x) x
 #define INNERFUNCTION(x) OUTERFUNCTION(x)
diff --git a/tests/auto/tools/moc/tst_moc.cpp b/tests/auto/tools/moc/tst_moc.cpp
index 74ddfd5620..6b7aaf7c0a 100644
--- a/tests/auto/tools/moc/tst_moc.cpp
+++ b/tests/auto/tools/moc/tst_moc.cpp
@@ -71,6 +71,7 @@
 #include "grand-parent-gadget-class.h"
 #include "namespace.h"
 #include "cxx17-namespaces.h"
+#include "cxx-attributes.h"
 
 #ifdef Q_MOC_RUN
 // check that moc can parse these constructs, they are being used in Windows winsock2.h header
@@ -703,6 +704,7 @@ private slots:
     void optionsFileError();
     void testQNamespace();
     void cxx17Namespaces();
+    void cxxAttributes();
 
 signals:
     void sigWithUnsignedArg(unsigned foo);
@@ -1423,6 +1425,16 @@ void tst_Moc::environmentIncludePaths()
 // plugin_metadata.h contains a plugin which we register here. Since we're not building this
 // application as a plugin, we need top copy some of the initializer code found in qplugin.h:
 extern "C" QObject *qt_plugin_instance();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+extern "C" QPluginMetaData qt_plugin_query_metadata();
+class StaticPluginInstance{
+public:
+    StaticPluginInstance() {
+        QStaticPlugin plugin(qt_plugin_instance, qt_plugin_query_metadata);
+        qRegisterStaticPluginFunction(plugin);
+    }
+};
+#else
 extern "C" const char *qt_plugin_query_metadata();
 class StaticPluginInstance{
 public:
@@ -1431,6 +1443,7 @@ public:
         qRegisterStaticPluginFunction(plugin);
     }
 };
+#endif
 static StaticPluginInstance staticInstance;
 
 void tst_Moc::specifyMetaTagsFromCmdline() {
@@ -3847,6 +3860,14 @@ static void checkEnum(const QMetaEnum &enumerator, const QByteArray &name, const
     }
 }
 
+class EnumFromNamespaceClass : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(FooNamespace::Enum1 prop READ prop CONSTANT)
+public:
+    FooNamespace::Enum1 prop() { return FooNamespace::Enum1::Key2; }
+};
+
 void tst_Moc::testQNamespace()
 {
     QCOMPARE(TestQNamespace::staticMetaObject.enumeratorCount(), 4);
@@ -3874,6 +3895,11 @@ void tst_Moc::testQNamespace()
     QCOMPARE(FooNamespace::staticMetaObject.enumeratorCount(), 1);
     QCOMPARE(FooNamespace::FooNestedNamespace::staticMetaObject.enumeratorCount(), 2);
     QCOMPARE(FooNamespace::FooNestedNamespace::FooMoreNestedNamespace::staticMetaObject.enumeratorCount(), 1);
+
+    EnumFromNamespaceClass obj;
+    const QVariant prop = obj.property("prop");
+    QCOMPARE(prop.type(), QMetaType::Int);
+    QCOMPARE(prop.toInt(), int(FooNamespace::Enum1::Key2));
 }
 
 void tst_Moc::cxx17Namespaces()
@@ -3895,6 +3921,41 @@ void tst_Moc::cxx17Namespaces()
     QCOMPARE(QMetaEnum::fromType<CXX17Namespace::A::B::C::D::ClassInNamespace::GadEn>().value(0), 3);
 }
 
+void tst_Moc::cxxAttributes()
+{
+    auto so = CppAttribute::staticMetaObject;
+    QCOMPARE(so.className(), "CppAttribute");
+    QCOMPARE(so.enumeratorCount(), 0);
+    QVERIFY(so.indexOfSignal("deprecatedSignal") != 1);
+    for (auto a: {"deprecatedSlot", "deprecatedSlot2", "deprecatedReason", "deprecatedReasonWithLBRACK",
+                  "deprecatedReasonWith2LBRACK", "deprecatedReasonWithRBRACK", "deprecatedReasonWith2RBRACK",
+                  "slotWithArguments"
+#if !defined(_MSC_VER) || _MSC_VER >= 1912
+                  , "noreturnSlot", "noreturnSlot2", "returnInt", "noreturnDeprecatedSlot",
+                  "noreturnSlot3"
+#endif
+                  }) {
+        QVERIFY(so.indexOfSlot(a) != 1);
+    }
+
+    QCOMPARE(TestQNamespaceDeprecated::staticMetaObject.enumeratorCount(), 2);
+    checkEnum(TestQNamespaceDeprecated::staticMetaObject.enumerator(0), "TestEnum1",
+                {{"Key1", 11}, {"Key2", 12}, {"Key3", 13}, {"Key4", 14}, {"Key5", 15}, {"Key6", 16},
+                 {"Key7", 17}});
+    checkEnum(TestQNamespaceDeprecated::staticMetaObject.enumerator(1), "TestFlag1",
+                {{"None", 0}, {"Flag1", 1}, {"Flag2", 2}, {"Flag3", 3}, {"Any", 1 | 2 | 3}});
+
+    QCOMPARE(TestQNamespaceDeprecated::TestGadget::staticMetaObject.enumeratorCount(), 1);
+    checkEnum(TestQNamespaceDeprecated::TestGadget::staticMetaObject.enumerator(0), "TestGEnum1",
+                {{"Key1", 13}, {"Key2", 14}, {"Key3", 15}});
+
+    QMetaEnum meta = QMetaEnum::fromType<TestQNamespaceDeprecated::TestEnum1>();
+    QVERIFY(meta.isValid());
+    QCOMPARE(meta.name(), "TestEnum1");
+    QCOMPARE(meta.enclosingMetaObject(), &TestQNamespaceDeprecated::staticMetaObject);
+    QCOMPARE(meta.keyCount(), 7);
+}
+
 QTEST_MAIN(tst_Moc)
 
 // the generated code must compile with QT_NO_KEYWORDS
diff --git a/tests/auto/tools/qmakelib/qmakelib.pro b/tests/auto/tools/qmakelib/qmakelib.pro
index 29f17f6a14..5e9e9fe637 100644
--- a/tests/auto/tools/qmakelib/qmakelib.pro
+++ b/tests/auto/tools/qmakelib/qmakelib.pro
@@ -1,7 +1,7 @@
 CONFIG += testcase
 TARGET = tst_qmakelib
 QT = core testlib
-win32: LIBS += -ladvapi32
+win32: QMAKE_USE += advapi32
 
 INCLUDEPATH += ../../../../qmake/library
 VPATH += ../../../../qmake/library
diff --git a/tests/auto/tools/rcc/data/sizes/size-2-0-35-1_python.expected b/tests/auto/tools/rcc/data/sizes/size-2-0-35-1_python.expected
new file mode 100644
index 0000000000..9dcd131af5
--- /dev/null
+++ b/tests/auto/tools/rcc/data/sizes/size-2-0-35-1_python.expected
@@ -0,0 +1,68 @@
+# Resource object code (Python 3)
+# Created by: object code
+# Created by: The Resource Compiler for Qt version 5.14.0
+# WARNING! All changes made in this file will be lost!
+
+from PySide2 import QtCore
+
+qt_resource_data = b"\
+\x00\x00\x00\x02\
+0\
+1\
+\x00\x00\x00#\
+0\
+123456789 012345\
+6789 0123456789 \
+12\
+\x00\x00\x00\x01\
+@\
+\
+\x00\x00\x00\x00\
+\
+"
+
+qt_resource_name = b"\
+\x00\x04\
+\x00\x06\xa8\xa1\
+\x00d\
+\x00a\x00t\x00a\
+\x00\x0a\
+\x04\x08\x0a\xb4\
+\x00d\
+\x00a\x00t\x00a\x00-\x002\x00.\x00t\x00x\x00t\
+\x00\x0b\
+\x00\xb5Ot\
+\x00d\
+\x00a\x00t\x00a\x00-\x003\x005\x00.\x00t\x00x\x00t\
+\x00\x0a\
+\x04\x11\x0a\xb4\
+\x00d\
+\x00a\x00t\x00a\x00-\x001\x00.\x00t\x00x\x00t\
+\x00\x0a\
+\x04\x0e\x0a\xb4\
+\x00d\
+\x00a\x00t\x00a\x00-\x000\x00.\x00t\x00x\x00t\
+"
+
+qt_resource_struct = b"\
+\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x00\x01\
+\x00\x00\x00\x00\x00\x00\x00\x00\
+\x00\x00\x00\x00\x00\x02\x00\x00\x00\x04\x00\x00\x00\x02\
+\x00\x00\x00\x00\x00\x00\x00\x00\
+\x00\x00\x00(\x00\x00\x00\x00\x00\x01\x00\x00\x00\x06\
+IGNORE: (time stamp)
+\x00\x00\x00\x0e\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\
+IGNORE: (time stamp)
+\x00\x00\x00^\x00\x00\x00\x00\x00\x01\x00\x00\x002\
+IGNORE: (time stamp)
+\x00\x00\x00D\x00\x00\x00\x00\x00\x01\x00\x00\x00-\
+IGNORE: (time stamp)
+"
+
+def qInitResources():
+    QtCore.qRegisterResourceData(0x03, qt_resource_struct, qt_resource_name, qt_resource_data)
+
+def qCleanupResources():
+    QtCore.qUnregisterResourceData(0x03, qt_resource_struct, qt_resource_name, qt_resource_data)
+
+qInitResources()
diff --git a/tests/auto/tools/rcc/tst_rcc.cpp b/tests/auto/tools/rcc/tst_rcc.cpp
index c810c6e364..24fd79cf19 100644
--- a/tests/auto/tools/rcc/tst_rcc.cpp
+++ b/tests/auto/tools/rcc/tst_rcc.cpp
@@ -46,6 +46,33 @@
 typedef QMap<QString, QString> QStringMap;
 Q_DECLARE_METATYPE(QStringMap)
 
+static QByteArray msgProcessStartFailed(const QProcess &p)
+{
+    const QString result = QLatin1String("Could not start \"")
+        + QDir::toNativeSeparators(p.program()) + QLatin1String("\": ")
+        + p.errorString();
+    return result.toLocal8Bit();
+}
+
+static QByteArray msgProcessTimeout(const QProcess &p)
+{
+    return '"' + QDir::toNativeSeparators(p.program()).toLocal8Bit()
+        + "\" timed out.";
+}
+
+static QByteArray msgProcessCrashed(QProcess &p)
+{
+    return '"' + QDir::toNativeSeparators(p.program()).toLocal8Bit()
+        + "\" crashed.\n" + p.readAllStandardError();
+}
+
+static QByteArray msgProcessFailed(QProcess &p)
+{
+    return '"' + QDir::toNativeSeparators(p.program()).toLocal8Bit()
+        + "\" returned " + QByteArray::number(p.exitCode()) + ":\n"
+        + p.readAllStandardError();
+}
+
 class tst_rcc : public QObject
 {
     Q_OBJECT
@@ -62,10 +89,13 @@ private slots:
     void readback_data();
     void readback();
 
+    void python();
+
     void cleanupTestCase();
 
 private:
     QString m_rcc;
+    QString m_dataPath;
 };
 
 void tst_rcc::initTestCase()
@@ -74,20 +104,19 @@ void tst_rcc::initTestCase()
     // we must force a certain hash order when testing or tst_rcc will fail, see QTBUG-25078
     QVERIFY(qputenv("QT_RCC_TEST", "1"));
     m_rcc = QLibraryInfo::location(QLibraryInfo::BinariesPath) + QLatin1String("/rcc");
-}
 
-QString findExpectedFile(const QString &base)
-{
-    QString expectedrccfile = base;
+    m_dataPath = QFINDTESTDATA("data");
+    QVERIFY(!m_dataPath.isEmpty());
+}
 
-    // Must be updated with each minor release.
-    if (QFileInfo(expectedrccfile + QLatin1String(".450")).exists())
-        expectedrccfile += QLatin1String(".450");
 
-    return expectedrccfile;
+static inline bool isPythonComment(const QString &line)
+{
+    return line.startsWith(QLatin1Char('#'));
 }
 
-static QString doCompare(const QStringList &actual, const QStringList &expected)
+static QString doCompare(const QStringList &actual, const QStringList &expected,
+                         const QString &timeStampPath)
 {
     if (actual.size() != expected.size()) {
         return QString("Length count different: actual: %1, expected: %2")
@@ -95,13 +124,21 @@ static QString doCompare(const QStringList &actual, const QStringList &expected)
     }
 
     QByteArray ba;
+    const bool isPython = isPythonComment(expected.constFirst());
     for (int i = 0, n = expected.size(); i != n; ++i) {
         QString expectedLine = expected.at(i);
         if (expectedLine.startsWith("IGNORE:"))
             continue;
+        if (isPython && isPythonComment(expectedLine) && isPythonComment(actual.at(i)))
+            continue;
         if (expectedLine.startsWith("TIMESTAMP:")) {
             const QString relativePath = expectedLine.mid(strlen("TIMESTAMP:"));
-            const quint64 timeStamp = QFileInfo(relativePath).lastModified().toMSecsSinceEpoch();
+            const QFileInfo fi(timeStampPath + QLatin1Char('/') + relativePath);
+            if (!fi.isFile()) {
+                ba.append("File " + fi.absoluteFilePath().toUtf8() + " does not exist!");
+                break;
+            }
+            const quint64 timeStamp = quint64(fi.lastModified().toMSecsSinceEpoch());
             expectedLine.clear();
             for (int shift = 56; shift >= 0; shift -= 8) {
                 expectedLine.append(QLatin1String("0x"));
@@ -110,7 +147,7 @@ static QString doCompare(const QStringList &actual, const QStringList &expected)
             }
         }
         if (expectedLine != actual.at(i)) {
-            qDebug() << "LINES" << i << "DIFFER";
+            qDebug() << "LINES" << (i + 1) << "DIFFER";
             ba.append(
              "\n<<<<<< actual\n" + actual.at(i) + "\n======\n" + expectedLine
                 + "\n>>>>>> expected\n"
@@ -126,49 +163,53 @@ void tst_rcc::rcc_data()
     QTest::addColumn<QString>("qrcfile");
     QTest::addColumn<QString>("expected");
 
-    QString dataPath = QFINDTESTDATA("data/images/");
-    if (dataPath.isEmpty())
-        QFAIL("data path not found");
-    QTest::newRow("images") << dataPath << "images.qrc" << "images.expected";
+    const QString imagesPath = m_dataPath + QLatin1String("/images");
+    QTest::newRow("images") << imagesPath << "images.qrc" << "images.expected";
 
-    QString sizesPath = QFINDTESTDATA("data/sizes/");
-    if (sizesPath.isEmpty())
-        QFAIL("data path not found");
+    const QString sizesPath = m_dataPath + QLatin1String("/sizes");
     QTest::newRow("size-0") << sizesPath << "size-0.qrc" << "size-0.expected";
     QTest::newRow("size-1") << sizesPath << "size-1.qrc" << "size-1.expected";
     QTest::newRow("size-2-0-35-1") << sizesPath << "size-2-0-35-1.qrc" << "size-2-0-35-1.expected";
 }
 
+static QStringList readLinesFromFile(const QString &fileName,
+                                     QString::SplitBehavior splitBehavior)
+{
+    QFile file(fileName);
+
+    bool ok = file.open(QIODevice::ReadOnly | QIODevice::Text);
+    if (!ok) {
+        QWARN(qPrintable(QString::fromLatin1("Could not open testdata file %1: %2")
+                         .arg(fileName, file.errorString())));
+    }
+
+    return QString::fromUtf8(file.readAll()).split(QLatin1Char('\n'), splitBehavior);
+}
+
 void tst_rcc::rcc()
 {
     QFETCH(QString, directory);
     QFETCH(QString, qrcfile);
     QFETCH(QString, expected);
 
-    if (!QDir::setCurrent(directory)) {
-        QString message = QString::fromLatin1("Unable to cd from '%1' to '%2'").arg(QDir::currentPath(), directory);
-        QFAIL(qPrintable(message));
-    }
-
     // If the file expectedoutput.txt exists, compare the
     // console output with the content of that file
-    const QString expected2 = findExpectedFile(expected);
-    QFile expectedFile(expected2);
-    if (!expectedFile.exists()) {
-        qDebug() << "NO EXPECTATIONS? " << expected2;
-        return;
-    }
 
     // Launch; force no compression, otherwise the output would be different
     // depending on the compression algorithm we're using
     QProcess process;
+    process.setWorkingDirectory(directory);
     process.start(m_rcc, { "-no-compress", qrcfile });
+    QVERIFY2(process.waitForStarted(), msgProcessStartFailed(process).constData());
     if (!process.waitForFinished()) {
-        const QString path = QString::fromLocal8Bit(qgetenv("PATH"));
-        QString message = QString::fromLatin1("'%1' could not be found when run from '%2'. Path: '%3' ").
-                          arg(m_rcc, QDir::currentPath(), path);
-        QFAIL(qPrintable(message));
+        process.kill();
+        QFAIL(msgProcessTimeout(process).constData());
     }
+    QVERIFY2(process.exitStatus() == QProcess::NormalExit,
+             msgProcessCrashed(process).constData());
+    QVERIFY2(process.exitCode() == 0,
+             msgProcessFailed(process).constData());
+
     const QChar cr = QLatin1Char('\r');
     const QString err = QString::fromLocal8Bit(process.readAllStandardError()).remove(cr);
     const QString out = QString::fromLatin1(process.readAllStandardOutput()).remove(cr);
@@ -181,63 +222,20 @@ void tst_rcc::rcc()
     const QChar nl = QLatin1Char('\n');
     const QStringList actualLines = out.split(nl);
 
-    QVERIFY(expectedFile.open(QIODevice::ReadOnly|QIODevice::Text));
-    const QStringList expectedLines = QString::fromLatin1(expectedFile.readAll()).split(nl);
+    const QStringList expectedLines =
+        readLinesFromFile(directory + QLatin1Char('/') + expected, QString::KeepEmptyParts);
+    QVERIFY(!expectedLines.isEmpty());
 
-    const QString diff = doCompare(actualLines, expectedLines);
+    const QString diff = doCompare(actualLines, expectedLines, directory);
     if (diff.size())
         QFAIL(qPrintable(diff));
 }
 
-
-
-static void createRccBinaryData(const QString &rcc, const QString &baseDir,
-    const QString &qrcFileName, const QString &rccFileName)
-{
-    QString currentDir = QDir::currentPath();
-    QDir::setCurrent(baseDir);
-
-    // same as above: force no compression
-    QProcess rccProcess;
-    rccProcess.start(rcc, { "-binary", "-no-compress", "-o", rccFileName, qrcFileName });
-    bool ok = rccProcess.waitForFinished();
-    if (!ok) {
-        QString errorString = QString::fromLatin1("Could not start rcc (is it in PATH?): %1").arg(rccProcess.errorString());
-        QFAIL(qPrintable(errorString));
-    }
-
-    QByteArray output = rccProcess.readAllStandardOutput();
-    if (!output.isEmpty()) {
-        QString errorMessage = QString::fromLatin1("rcc stdout: %1").arg(QString::fromLocal8Bit(output));
-        QWARN(qPrintable(errorMessage));
-    }
-
-    output = rccProcess.readAllStandardError();
-    if (!output.isEmpty()) {
-        QString errorMessage = QString::fromLatin1("rcc stderr: %1").arg(QString::fromLocal8Bit(output));
-        QWARN(qPrintable(errorMessage));
-    }
-
-    QDir::setCurrent(currentDir);
-}
-
-static QStringList readLinesFromFile(const QString &fileName)
-{
-    QFile file(fileName);
-
-    bool ok = file.open(QIODevice::ReadOnly | QIODevice::Text);
-    if (!ok)
-        QWARN(qPrintable(QString::fromLatin1("Could not open testdata file %1: %2").arg(fileName, file.errorString())));
-
-    QStringList lines = QString::fromUtf8(file.readAll()).split(QLatin1Char('\n'), QString::SkipEmptyParts);
-    return lines;
-}
-
 static QStringMap readExpectedFiles(const QString &fileName)
 {
     QStringMap expectedFiles;
 
-    QStringList lines = readLinesFromFile(fileName);
+    QStringList lines = readLinesFromFile(fileName, QString::SkipEmptyParts);
     foreach (const QString &line, lines) {
         QString resourceFileName = line.section(QLatin1Char(' '), 0, 0, QString::SectionSkipEmpty);
         QString actualFileName = line.section(QLatin1Char(' '), 1, 1, QString::SectionSkipEmpty);
@@ -268,9 +266,7 @@ void tst_rcc::binary_data()
     QTest::addColumn<QString>("baseDirectory");
     QTest::addColumn<QStringMap>("expectedFiles");
 
-    QString dataPath = QFINDTESTDATA("data/binary/");
-    if (dataPath.isEmpty())
-        QFAIL("data path not found");
+    QString dataPath = m_dataPath + QLatin1String("/binary/");
 
     QDirIterator iter(dataPath, QStringList() << QLatin1String("*.qrc"));
     while (iter.hasNext())
@@ -279,12 +275,33 @@ void tst_rcc::binary_data()
         QFileInfo qrcFileInfo = iter.fileInfo();
         QString absoluteBaseName = QFileInfo(qrcFileInfo.absolutePath(), qrcFileInfo.baseName()).absoluteFilePath();
         QString rccFileName = absoluteBaseName + QLatin1String(".rcc");
-        createRccBinaryData(m_rcc, dataPath, qrcFileInfo.absoluteFilePath(), rccFileName);
+
+        // same as above: force no compression
+        QProcess rccProcess;
+        rccProcess.setWorkingDirectory(dataPath);
+        rccProcess.start(m_rcc, { "-binary", "-no-compress", "-o", rccFileName, qrcFileInfo.absoluteFilePath() });
+        QVERIFY2(rccProcess.waitForStarted(), msgProcessStartFailed(rccProcess).constData());
+        if (!rccProcess.waitForFinished()) {
+            rccProcess.kill();
+            QFAIL(msgProcessTimeout(rccProcess).constData());
+        }
+        QVERIFY2(rccProcess.exitStatus() == QProcess::NormalExit,
+                 msgProcessCrashed(rccProcess).constData());
+        QVERIFY2(rccProcess.exitCode() == 0,
+                 msgProcessFailed(rccProcess).constData());
+
+        QByteArray output = rccProcess.readAllStandardOutput();
+        if (!output.isEmpty())
+            qWarning("rcc stdout: %s", output.constData());
+
+        output = rccProcess.readAllStandardError();
+        if (!output.isEmpty())
+            qWarning("rcc stderr: %s", output.constData());
 
         QString localeFileName = absoluteBaseName + QLatin1String(".locale");
         QFile localeFile(localeFileName);
         if (localeFile.exists()) {
-            QStringList locales = readLinesFromFile(localeFileName);
+            QStringList locales = readLinesFromFile(localeFileName, QString::SkipEmptyParts);
             foreach (const QString &locale, locales) {
                 QString expectedFileName = QString::fromLatin1("%1.%2.%3").arg(absoluteBaseName, locale, QLatin1String("expected"));
                 QStringMap expectedFiles = readExpectedFiles(expectedFileName);
@@ -386,16 +403,12 @@ void tst_rcc::readback()
     QFETCH(QString, resourceName);
     QFETCH(QString, fileSystemName);
 
-    QString dataPath = QFINDTESTDATA("data/");
-    if (dataPath.isEmpty())
-        QFAIL("data path not found");
-
     QFile resourceFile(resourceName);
     QVERIFY(resourceFile.open(QIODevice::ReadOnly));
     QByteArray resourceData = resourceFile.readAll();
     resourceFile.close();
 
-    QFile fileSystemFile(dataPath + fileSystemName);
+    QFile fileSystemFile(m_dataPath + QLatin1Char('/') + fileSystemName);
     QVERIFY(fileSystemFile.open(QIODevice::ReadOnly));
     QByteArray fileSystemData = fileSystemFile.readAll();
     fileSystemFile.close();
@@ -403,12 +416,39 @@ void tst_rcc::readback()
     QCOMPARE(resourceData, fileSystemData);
 }
 
+void tst_rcc::python()
+{
+    const QString path = m_dataPath + QLatin1String("/sizes");
+    const QString testFileRoot = path + QLatin1String("/size-2-0-35-1");
+    const QString qrcFile = testFileRoot + QLatin1String(".qrc");
+    const QString expectedFile = testFileRoot + QLatin1String("_python.expected");
+    const QString actualFile = testFileRoot + QLatin1String(".rcc");
+
+    QProcess process;
+    process.setWorkingDirectory(path);
+    process.start(m_rcc, { "-g", "python", "-o", actualFile, qrcFile});
+    QVERIFY2(process.waitForStarted(), msgProcessStartFailed(process).constData());
+    if (!process.waitForFinished()) {
+        process.kill();
+        QFAIL(msgProcessTimeout(process).constData());
+    }
+    QVERIFY2(process.exitStatus() == QProcess::NormalExit,
+             msgProcessCrashed(process).constData());
+    QVERIFY2(process.exitCode() == 0,
+             msgProcessFailed(process).constData());
+
+    const auto actualLines = readLinesFromFile(actualFile, QString::KeepEmptyParts);
+    QVERIFY(!actualLines.isEmpty());
+    const auto expectedLines = readLinesFromFile(expectedFile, QString::KeepEmptyParts);
+    QVERIFY(!expectedLines.isEmpty());
+    const QString diff = doCompare(actualLines, expectedLines, path);
+    if (!diff.isEmpty())
+        QFAIL(qPrintable(diff));
+}
+
 void tst_rcc::cleanupTestCase()
 {
-    QString dataPath = QFINDTESTDATA("data/binary/");
-    if (dataPath.isEmpty())
-        return;
-    QDir dataDir(dataPath);
+    QDir dataDir(m_dataPath + QLatin1String("/binary"));
     QFileInfoList entries = dataDir.entryInfoList(QStringList() << QLatin1String("*.rcc"));
     foreach (const QFileInfo &entry, entries)
         QFile::remove(entry.absoluteFilePath());
diff --git a/tests/auto/tools/uic/tst_uic.cpp b/tests/auto/tools/uic/tst_uic.cpp
index f9553028fe..5b2f1f008b 100644
--- a/tests/auto/tools/uic/tst_uic.cpp
+++ b/tests/auto/tools/uic/tst_uic.cpp
@@ -36,17 +36,27 @@
 #include <QtCore/QTemporaryDir>
 #include <QtCore/QRegularExpression>
 #include <QtCore/QStandardPaths>
+#include <QtCore/QVector>
 
 #include <cstdio>
 
 static const char keepEnvVar[] = "UIC_KEEP_GENERATED_FILES";
 static const char diffToStderrEnvVar[] = "UIC_STDERR_DIFF";
 
+struct TestEntry
+{
+    QByteArray name;
+    QString baselineBaseName;
+    QString generatedFileName;
+};
+
 class tst_uic : public QObject
 {
     Q_OBJECT
 
 public:
+    using TestEntries = QVector<TestEntry>;
+
     tst_uic();
 
 private Q_SLOTS:
@@ -63,13 +73,20 @@ private Q_SLOTS:
     void compare();
     void compare_data() const;
 
+    void python();
+    void python_data() const;
+
     void runCompare();
 
 private:
+    void populateTestEntries();
+
     const QString m_command;
     QString m_baseline;
     QTemporaryDir m_generated;
+    TestEntries m_testEntries;
     QRegularExpression m_versionRegexp;
+    QString m_python;
 };
 
 tst_uic::tst_uic()
@@ -85,6 +102,32 @@ static QByteArray msgProcessStartFailed(const QString &command, const QString &w
     return result.toLocal8Bit();
 }
 
+// Locate Python and check whether PySide2 is installed
+static QString locatePython(QTemporaryDir &generatedDir)
+{
+    QString python = QStandardPaths::findExecutable(QLatin1String("python"));
+    if (python.isEmpty()) {
+        qWarning("Cannot locate python, skipping tests");
+        return QString();
+    }
+    QFile importTestFile(generatedDir.filePath(QLatin1String("import_test.py")));
+    if (!importTestFile.open(QIODevice::WriteOnly| QIODevice::Text))
+        return QString();
+    importTestFile.write("import PySide2.QtCore\n");
+    importTestFile.close();
+    QProcess process;
+    process.start(python, {importTestFile.fileName()});
+    if (!process.waitForStarted() || !process.waitForFinished())
+        return QString();
+    if (process.exitStatus() != QProcess::NormalExit || process.exitCode() != 0) {
+        const QString stdErr = QString::fromLocal8Bit(process.readAllStandardError()).simplified();
+        qWarning("PySide2 is not installed (%s)", qPrintable(stdErr));
+        return QString();
+    }
+    importTestFile.remove();
+    return python;
+}
+
 void tst_uic::initTestCase()
 {
     QVERIFY2(m_generated.isValid(), qPrintable(m_generated.errorString()));
@@ -105,7 +148,28 @@ void tst_uic::initTestCase()
                   arg(QDir::currentPath());
     if (!outLines.empty())
         msg += outLines.front();
+    populateTestEntries();
+    QVERIFY(!m_testEntries.isEmpty());
     qDebug("%s", qPrintable(msg));
+
+    m_python = locatePython(m_generated);
+}
+
+void tst_uic::populateTestEntries()
+{
+    const QString generatedPrefix = m_generated.path() + QLatin1Char('/');
+    QDir baseline(m_baseline);
+    const QString baseLinePrefix = baseline.path() + QLatin1Char('/');
+    const QFileInfoList baselineFiles =
+        baseline.entryInfoList(QStringList(QString::fromLatin1("*.ui")), QDir::Files);
+    m_testEntries.reserve(baselineFiles.size());
+    for (const QFileInfo &baselineFile : baselineFiles) {
+        const QString baseName = baselineFile.baseName();
+        const QString baselineBaseName = baseLinePrefix + baseName;
+        const QString generatedFile = generatedPrefix + baselineFile.fileName()
+            + QLatin1String(".h");
+        m_testEntries.append(TestEntry{baseName.toLocal8Bit(), baselineBaseName, generatedFile});
+    }
 }
 
 static const char helpFormat[] = R"(
@@ -171,22 +235,12 @@ void tst_uic::run_data() const
     QTest::addColumn<QString>("generatedFile");
     QTest::addColumn<QStringList>("options");
 
-    QDir generated(m_generated.path());
-    QDir baseline(m_baseline);
-    const QFileInfoList baselineFiles = baseline.entryInfoList(QStringList("*.ui"), QDir::Files);
-    foreach (const QFileInfo &baselineFile, baselineFiles) {
-        const QString generatedFile = generated.absolutePath()
-            + QLatin1Char('/') + baselineFile.fileName()
-            + QLatin1String(".h");
-
+    for (const TestEntry &te : m_testEntries) {
         QStringList options;
-        if (baselineFile.fileName() == QLatin1String("qttrid.ui"))
+        if (te.name == QByteArrayLiteral("qttrid"))
             options << QStringList(QLatin1String("-idbased"));
-
-        QTest::newRow(qPrintable(baselineFile.baseName()))
-            << baselineFile.absoluteFilePath()
-            << generatedFile
-            << options;
+        QTest::newRow(te.name.constData()) << (te.baselineBaseName + QLatin1String(".ui"))
+            << te.generatedFileName << options;
     }
 }
 
@@ -264,15 +318,9 @@ void tst_uic::compare_data() const
     QTest::addColumn<QString>("originalFile");
     QTest::addColumn<QString>("generatedFile");
 
-    QDir generated(m_generated.path());
-    QDir baseline(m_baseline);
-    const QFileInfoList baselineFiles = baseline.entryInfoList(QStringList("*.h"), QDir::Files);
-    foreach (const QFileInfo &baselineFile, baselineFiles) {
-        const QString generatedFile = generated.absolutePath()
-                + QLatin1Char('/') + baselineFile.fileName();
-        QTest::newRow(qPrintable(baselineFile.baseName()))
-            << baselineFile.absoluteFilePath()
-            << generatedFile;
+    for (const TestEntry &te : m_testEntries) {
+        QTest::newRow(te.name.constData()) << (te.baselineBaseName + QLatin1String(".ui.h"))
+            << te.generatedFileName;
     }
 }
 
@@ -280,7 +328,7 @@ void tst_uic::runTranslation()
 {
     QProcess process;
 
-    QDir baseline(m_baseline);
+    const QDir baseline(m_baseline);
 
     QDir generated(m_generated.path());
     generated.mkdir(QLatin1String("translation"));
@@ -327,5 +375,75 @@ void tst_uic::runCompare()
     QCOMPARE(generatedFileContents, originalFileContents);
 }
 
+// Let uic generate Python code and verify that it is syntactically
+// correct by compiling it into .pyc. This test is executed only
+// when python with an installed Qt for Python is detected (see locatePython()).
+
+static inline QByteArray msgCompilePythonFailed(const QByteArray &error)
+{
+    // If there is a line with blanks and caret indicating an error in the line
+    // above, insert the cursor into the offending line and remove the caret.
+    QByteArrayList lines = error.trimmed().split('\n');
+    for (int i = lines.size() -  1; i > 0; --i) {
+        const auto &line = lines.at(i);
+        const int caret = line.indexOf('^');
+        if (caret == 0 || (caret > 0 && line.at(caret - 1) == ' ')) {
+            lines.removeAt(i);
+            lines[i - 1].insert(caret, '|');
+            break;
+        }
+    }
+    return lines.join('\n');
+}
+
+void tst_uic::python_data() const
+{
+    QTest::addColumn<QString>("originalFile");
+    QTest::addColumn<QString>("generatedFile");
+
+    const int size = m_python.isEmpty()
+        ? qMin(1, m_testEntries.size()) : m_testEntries.size();
+    for (int i = 0; i < size; ++i) {
+        const TestEntry &te = m_testEntries.at(i);
+        // qprintsettingsoutput: variable named 'from' clashes with Python
+        if (!te.baselineBaseName.endsWith(QLatin1String("/qprintsettingsoutput"))) {
+            QString generatedFile = te.generatedFileName;
+            generatedFile.chop(1); // foo.h -> foo.py
+            generatedFile.append(QLatin1String("py"));
+            QTest::newRow(te.name.constData())
+                << (te.baselineBaseName + QLatin1String(".ui"))
+                << generatedFile;
+        }
+    }
+}
+
+void tst_uic::python()
+{
+    QFETCH(QString, originalFile);
+    QFETCH(QString, generatedFile);
+    if (m_python.isEmpty())
+        QSKIP("Python was not found");
+
+    QStringList uicArguments{QLatin1String("-g"), QLatin1String("python"),
+        originalFile, QLatin1String("-o"), generatedFile};
+    QProcess process;
+    process.setWorkingDirectory(m_generated.path());
+    process.start(m_command, uicArguments);
+    QVERIFY2(process.waitForStarted(), msgProcessStartFailed(m_command, process.errorString()));
+    QVERIFY(process.waitForFinished());
+    QCOMPARE(process.exitStatus(), QProcess::NormalExit);
+    QCOMPARE(process.exitCode(), 0);
+    QVERIFY(QFileInfo::exists(generatedFile));
+
+    // Test Python code generation by compiling the file
+    QStringList compileArguments{QLatin1String("-m"), QLatin1String("py_compile"), generatedFile};
+    process.start(m_python, compileArguments);
+    QVERIFY2(process.waitForStarted(), msgProcessStartFailed(m_command, process.errorString()));
+    QVERIFY(process.waitForFinished());
+    const bool compiled = process.exitStatus() == QProcess::NormalExit
+        && process.exitCode() == 0;
+    QVERIFY2(compiled, msgCompilePythonFailed(process.readAllStandardError()).constData());
+}
+
 QTEST_MAIN(tst_uic)
 #include "tst_uic.moc"
diff --git a/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp b/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
index 748c8aaa84..f7482bae45 100644
--- a/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
+++ b/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
@@ -1421,6 +1421,16 @@ void tst_QFiledialog::clearLineEdit()
 
     QTRY_VERIFY(fd.directory().absolutePath() != workDirPath);
     QVERIFY(lineEdit->text().isEmpty());
+
+    // QTBUG-71415: When pressing back, the selection (activated
+    // directory) should be restored.
+    QToolButton *backButton = fd.findChild<QToolButton*>("backButton");
+    QVERIFY(backButton);
+    QTreeView *treeView = fd.findChildren<QTreeView*>("treeView").value(0);
+    QVERIFY(treeView);
+    backButton->click();
+    QTRY_COMPARE(treeView->selectionModel()->selectedIndexes().value(0).data().toString(),
+                 dirName);
 }
 
 void tst_QFiledialog::enableChooseButton()
diff --git a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
index 2ada4fedb6..6f527e7b6b 100644
--- a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
+++ b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
@@ -252,7 +252,7 @@ class QTestTranslator : public QTranslator
 {
     const QString m_str;
 public:
-    explicit QTestTranslator(QString str) : m_str(qMove(str)) {}
+    explicit QTestTranslator(QString str) : m_str(std::move(str)) {}
 
     QString translate(const char *, const char *sourceText, const char *, int) const override
     { return m_str + sourceText + m_str; }
@@ -265,7 +265,7 @@ class QTranslatorGuard {
     Translator t;
 public:
     template <typename Arg>
-    explicit QTranslatorGuard(Arg a) : t(qMove(a))
+    explicit QTranslatorGuard(Arg a) : t(std::move(a))
     { qApp->installTranslator(&t); }
     ~QTranslatorGuard()
     { qApp->removeTranslator(&t); }
diff --git a/tests/auto/widgets/graphicsview/qgraphicsitem/qgraphicsitem.pro b/tests/auto/widgets/graphicsview/qgraphicsitem/qgraphicsitem.pro
index ae6de48195..16818a98f9 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsitem/qgraphicsitem.pro
+++ b/tests/auto/widgets/graphicsview/qgraphicsitem/qgraphicsitem.pro
@@ -5,4 +5,4 @@ QT += core-private gui-private
 SOURCES  += tst_qgraphicsitem.cpp
 DEFINES += QT_NO_CAST_TO_ASCII
 
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp b/tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp
index bca664c05b..0cfdecbcab 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp
+++ b/tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp
@@ -8386,7 +8386,7 @@ void tst_QGraphicsItem::focusProxy()
     QString err;
     QTextStream stream(&err);
     stream << "QGraphicsItem::setFocusProxy: "
-           << (void*)item << " is already in the focus proxy chain" << flush;
+           << (void*)item << " is already in the focus proxy chain" << Qt::flush;
     QTest::ignoreMessage(QtWarningMsg, err.toLatin1().constData());
     item2->setFocusProxy(item); // fails
     QCOMPARE(item->focusProxy(), (QGraphicsItem *)item2);
diff --git a/tests/auto/widgets/graphicsview/qgraphicsitemanimation/tst_qgraphicsitemanimation.cpp b/tests/auto/widgets/graphicsview/qgraphicsitemanimation/tst_qgraphicsitemanimation.cpp
index dfb2752ee0..ed79904ed8 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsitemanimation/tst_qgraphicsitemanimation.cpp
+++ b/tests/auto/widgets/graphicsview/qgraphicsitemanimation/tst_qgraphicsitemanimation.cpp
@@ -54,9 +54,9 @@ void tst_QGraphicsItemAnimation::construction()
     QCOMPARE(animation.posAt(0), QPointF());
     QCOMPARE(animation.posAt(0.5), QPointF());
     QCOMPARE(animation.posAt(1), QPointF());
-    QCOMPARE(animation.matrixAt(0), QMatrix());
-    QCOMPARE(animation.matrixAt(0.5), QMatrix());
-    QCOMPARE(animation.matrixAt(1), QMatrix());
+    QCOMPARE(animation.transformAt(0), QTransform());
+    QCOMPARE(animation.transformAt(0.5), QTransform());
+    QCOMPARE(animation.transformAt(1), QTransform());
     QCOMPARE(animation.rotationAt(0), qreal(0.0));
     QCOMPARE(animation.rotationAt(0.5), qreal(0.0));
     QCOMPARE(animation.rotationAt(1), qreal(0.0));
diff --git a/tests/auto/widgets/graphicsview/qgraphicsscene/qgraphicsscene.pro b/tests/auto/widgets/graphicsview/qgraphicsscene/qgraphicsscene.pro
index 351cecd92e..2f648a2212 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsscene/qgraphicsscene.pro
+++ b/tests/auto/widgets/graphicsview/qgraphicsscene/qgraphicsscene.pro
@@ -4,7 +4,7 @@ QT += widgets widgets-private testlib
 QT += core-private gui-private
 SOURCES  += tst_qgraphicsscene.cpp
 RESOURCES += images.qrc
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
 
 DEFINES += SRCDIR=\\\"$$PWD\\\"
 DEFINES += QT_NO_CAST_TO_ASCII
diff --git a/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp b/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
index 1b3e1e1f34..f247889d55 100644
--- a/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
+++ b/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
@@ -85,8 +85,8 @@ class XResetModel : public QStandardItemModel
         blockSignals(true);
         bool r = QStandardItemModel::removeRows(row, count, parent);
         blockSignals(false);
-        emit beginResetModel();
-        emit endResetModel();
+        beginResetModel();
+        endResetModel();
         return r;
     }
     virtual bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex())
@@ -94,8 +94,8 @@ class XResetModel : public QStandardItemModel
         blockSignals(true);
         bool r = QStandardItemModel::insertRows(row, count, parent);
         blockSignals(false);
-        emit beginResetModel();
-        emit endResetModel();
+        beginResetModel();
+        endResetModel();
         return r;
     }
 };
diff --git a/tests/auto/widgets/itemviews/qitemdelegate/qitemdelegate.pro b/tests/auto/widgets/itemviews/qitemdelegate/qitemdelegate.pro
index 10cd1dcc54..916694fd0f 100644
--- a/tests/auto/widgets/itemviews/qitemdelegate/qitemdelegate.pro
+++ b/tests/auto/widgets/itemviews/qitemdelegate/qitemdelegate.pro
@@ -3,4 +3,4 @@ TARGET = tst_qitemdelegate
 QT += widgets widgets-private testlib
 SOURCES         += tst_qitemdelegate.cpp
 
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/widgets/itemviews/qlistview/qlistview.pro b/tests/auto/widgets/itemviews/qlistview/qlistview.pro
index 75f45ab432..c3e19adc81 100644
--- a/tests/auto/widgets/itemviews/qlistview/qlistview.pro
+++ b/tests/auto/widgets/itemviews/qlistview/qlistview.pro
@@ -2,4 +2,4 @@ CONFIG += testcase
 TARGET = tst_qlistview
 QT += widgets gui-private widgets-private core-private testlib testlib-private
 SOURCES  += tst_qlistview.cpp
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/widgets/itemviews/qlistwidget/tst_qlistwidget.cpp b/tests/auto/widgets/itemviews/qlistwidget/tst_qlistwidget.cpp
index 91088aeeca..fe2ede4183 100644
--- a/tests/auto/widgets/itemviews/qlistwidget/tst_qlistwidget.cpp
+++ b/tests/auto/widgets/itemviews/qlistwidget/tst_qlistwidget.cpp
@@ -1525,11 +1525,11 @@ void tst_QListWidget::itemData()
     item.setData(Qt::DisplayRole,  QString("0"));
     QCOMPARE(widget.currentRoles, QVector<int>({Qt::DisplayRole, Qt::EditRole}));
     item.setData(Qt::CheckStateRole, Qt::PartiallyChecked);
-    QCOMPARE(widget.currentRoles, {Qt::CheckStateRole});
+    QCOMPARE(widget.currentRoles, QVector<int>{Qt::CheckStateRole});
     for (int i = 0; i < 4; ++i)
     {
         item.setData(Qt::UserRole + i, QString::number(i + 1));
-        QCOMPARE(widget.currentRoles, {Qt::UserRole + i});
+        QCOMPARE(widget.currentRoles, QVector<int>{Qt::UserRole + i});
     }
     QMap<int, QVariant> flags = widget.model()->itemData(widget.model()->index(0, 0));
     QCOMPARE(flags.count(), 6);
diff --git a/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp b/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
index b1ddc6e7a2..bf87408056 100644
--- a/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
+++ b/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
@@ -32,6 +32,9 @@
 #include <private/qtablewidget_p.h>
 #include <QtTest/QtTest>
 #include "private/qapplication_p.h"
+#if QT_CONFIG(textmarkdownwriter)
+#include "private/qtextmarkdownwriter_p.h"
+#endif
 
 #include <algorithm>
 
@@ -196,6 +199,10 @@ private slots:
     void viewOptions();
 
     void taskQTBUG_7232_AllowUserToControlSingleStep();
+
+#if QT_CONFIG(textmarkdownwriter)
+    void markdownWriter();
+#endif
 };
 
 // Testing get/set functions
@@ -4560,5 +4567,33 @@ void tst_QTableView::taskQTBUG_50171_selectRowAfterSwapColumns()
     }
 }
 
+// This has nothing to do with QTableView, but it's convenient to reuse the QtTestTableModel
+#if QT_CONFIG(textmarkdownwriter)
+
+// #define DEBUG_WRITE_OUTPUT
+
+void tst_QTableView::markdownWriter()
+{
+    QtTestTableModel model(2, 3);
+    QString md;
+    {
+        QTextStream stream(&md);
+        QTextMarkdownWriter writer(stream, QTextDocument::MarkdownDialectGitHub);
+        writer.writeTable(&model);
+    }
+
+#ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out("/tmp/table.md");
+        out.open(QFile::WriteOnly);
+        out.write(md.toUtf8());
+        out.close();
+    }
+#endif
+
+    QCOMPARE(md, QString::fromLatin1("|1      |2      |3      |\n|-------|-------|-------|\n|[0,0,0]|[0,1,0]|[0,2,0]|\n|[1,0,0]|[1,1,0]|[1,2,0]|\n"));
+}
+#endif
+
 QTEST_MAIN(tst_QTableView)
 #include "tst_qtableview.moc"
diff --git a/tests/auto/widgets/itemviews/qtablewidget/tst_qtablewidget.cpp b/tests/auto/widgets/itemviews/qtablewidget/tst_qtablewidget.cpp
index c2de5c2761..6184962d93 100644
--- a/tests/auto/widgets/itemviews/qtablewidget/tst_qtablewidget.cpp
+++ b/tests/auto/widgets/itemviews/qtablewidget/tst_qtablewidget.cpp
@@ -1383,11 +1383,11 @@ void tst_QTableWidget::itemData()
     item->setData(Qt::DisplayRole,  QString("0"));
     QCOMPARE(widget.currentRoles, QVector<int>({Qt::DisplayRole, Qt::EditRole}));
     item->setData(Qt::CheckStateRole, Qt::PartiallyChecked);
-    QCOMPARE(widget.currentRoles, {Qt::CheckStateRole});
+    QCOMPARE(widget.currentRoles, QVector<int>{Qt::CheckStateRole});
     for (int i = 0; i < 4; ++i)
     {
         item->setData(Qt::UserRole + i, QString::number(i + 1));
-        QCOMPARE(widget.currentRoles, {Qt::UserRole + i});
+        QCOMPARE(widget.currentRoles, QVector<int>{Qt::UserRole + i});
     }
     QMap<int, QVariant> flags = widget.model()->itemData(widget.model()->index(0, 0));
     QCOMPARE(flags.count(), 6);
diff --git a/tests/auto/widgets/itemviews/qtreewidget/tst_qtreewidget.cpp b/tests/auto/widgets/itemviews/qtreewidget/tst_qtreewidget.cpp
index 33d4f3bf91..0d97974b90 100644
--- a/tests/auto/widgets/itemviews/qtreewidget/tst_qtreewidget.cpp
+++ b/tests/auto/widgets/itemviews/qtreewidget/tst_qtreewidget.cpp
@@ -1999,10 +1999,10 @@ void tst_QTreeWidget::itemData()
     item.setData(0, Qt::DisplayRole,  QString("0"));
     QCOMPARE(widget.currentRoles, QVector<int>({Qt::DisplayRole, Qt::EditRole}));
     item.setData(0, Qt::CheckStateRole, Qt::PartiallyChecked);
-    QCOMPARE(widget.currentRoles, {Qt::CheckStateRole});
+    QCOMPARE(widget.currentRoles, QVector<int>{Qt::CheckStateRole});
     for (int i = 0; i < 4; ++i) {
         item.setData(0, Qt::UserRole + i, QString::number(i + 1));
-        QCOMPARE(widget.currentRoles, {Qt::UserRole + i});
+        QCOMPARE(widget.currentRoles, QVector<int>{Qt::UserRole + i});
     }
     QMap<int, QVariant> flags = widget.model()->itemData(widget.model()->index(0, 0));
     QCOMPARE(flags.count(), 6);
diff --git a/tests/auto/widgets/kernel/kernel.pro b/tests/auto/widgets/kernel/kernel.pro
index 73fd934502..af85a2bd13 100644
--- a/tests/auto/widgets/kernel/kernel.pro
+++ b/tests/auto/widgets/kernel/kernel.pro
@@ -22,5 +22,3 @@ SUBDIRS=\
 
 darwin:SUBDIRS -= \ # Uses native recognizers
    qgesturerecognizer \
-
-SUBDIRS -= qsound
diff --git a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
index e57ac77c39..af70b653ee 100644
--- a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
+++ b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
@@ -908,7 +908,9 @@ void tst_QApplication::libraryPaths()
 
         QStringList actual = QApplication::libraryPaths();
         actual.sort();
-        QStringList expected = QSet<QString>::fromList((QStringList() << testDir << appDirPath)).toList();
+        QStringList expected;
+        expected << testDir << appDirPath;
+        expected = QSet<QString>(expected.constBegin(), expected.constEnd()).values();
         expected.sort();
 
         QVERIFY2(isPathListIncluded(actual, expected),
@@ -925,7 +927,9 @@ void tst_QApplication::libraryPaths()
         QStringList actual = QApplication::libraryPaths();
         actual.sort();
 
-        QStringList expected = QSet<QString>::fromList((QStringList() << installPathPlugins << appDirPath)).toList();
+        QStringList expected;
+        expected << installPathPlugins << appDirPath;
+        expected = QSet<QString>(expected.constBegin(), expected.constEnd()).values();
         expected.sort();
 
 #ifdef Q_OS_WINRT
diff --git a/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp b/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
index b2650d1f32..8dd9d7c428 100644
--- a/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
+++ b/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
@@ -47,6 +47,7 @@ private slots:
     void sizeConstraints();
     void setGeometry();
     void setStyleShouldChangeSpacing();
+    void widgetSurplus();
 
     void testLayoutEngine_data();
     void testLayoutEngine();
@@ -236,6 +237,69 @@ void tst_QBoxLayout::setStyleShouldChangeSpacing()
     QTRY_COMPARE(spacing(), 10);
 }
 
+class MarginEatingStyle : public QProxyStyle
+{
+public:
+    MarginEatingStyle() : QProxyStyle(QStyleFactory::create("windows"))
+    {
+    }
+
+    virtual QRect subElementRect(SubElement sr, const QStyleOption *opt,
+                                const QWidget *widget) const
+    {
+        QRect rect = opt->rect;
+        switch (sr) {
+        case SE_GroupBoxLayoutItem:
+            // this is a simplifed version of what the macOS style does
+            rect.setTop(rect.top() + 20);
+            rect.setLeft(rect.left() + 20);
+            rect.setRight(rect.right() - 20);
+            rect.setBottom(rect.bottom() - 20);
+            break;
+        default:
+            return QProxyStyle::subElementRect(sr, opt, widget);
+        }
+
+        return rect;
+    }
+};
+
+void tst_QBoxLayout::widgetSurplus()
+{
+    // Test case for QTBUG-67608 - a style requests space in the margin
+
+    QDialog window;
+    QScopedPointer<MarginEatingStyle> marginEater(new MarginEatingStyle);
+    QVBoxLayout *vbox = new QVBoxLayout(&window);
+    vbox->setMargin(0);
+    vbox->setSpacing(0);
+
+    QLabel *hiddenLabel = new QLabel(tr("Invisible label"));
+    hiddenLabel->setVisible(false);
+
+    QGroupBox *groupBox = new QGroupBox(tr("Groupbox Title"));
+    groupBox->setStyle(marginEater.data());
+    groupBox->setObjectName("Test group box");
+    QPushButton *button1 = new QPushButton(tr("Button 1"));
+    QPushButton *button2 = new QPushButton(tr("Button 2"));
+    QVBoxLayout *groupLayout = new QVBoxLayout;
+    groupLayout->addWidget(button1);
+    groupLayout->addWidget(button2);
+    groupBox->setLayout(groupLayout);
+
+    QLabel *label = new QLabel(tr("Visible label"));
+
+    vbox->addWidget(hiddenLabel);
+    vbox->addWidget(groupBox);
+    vbox->addWidget(label);
+    window.setLayout(vbox);
+
+    window.show();
+    QVERIFY(QTest::qWaitForWindowExposed(&window));
+    QCOMPARE(groupBox->y(), 0);
+    QCOMPARE(groupBox->x(), 0);
+}
+
 void tst_QBoxLayout::taskQTBUG_7103_minMaxWidthNotRespected()
 {
     QLabel *label = new QLabel("Qt uses standard C++, but makes extensive use of the C pre-processor to enrich the language. Qt can also be used in several other programming languages via language bindings. It runs on all major platforms, and has extensive internationalization support. Non-GUI features include SQL database access, XML parsing, thread management, network support and a unified cross-platform API for file handling.");
@@ -507,6 +571,10 @@ void tst_QBoxLayout::replaceWidget()
 
     QCOMPARE(boxLayout->indexOf(replaceFrom), 1);
     QCOMPARE(boxLayout->indexOf(replaceTo), -1);
+    QCOMPARE(boxLayout->count(), 3);
+    boxLayout->replaceWidget(replaceFrom, replaceFrom);
+    QCOMPARE(boxLayout->count(), 3);
+
     delete boxLayout->replaceWidget(replaceFrom, replaceTo);
 
     QCOMPARE(boxLayout->indexOf(replaceFrom), -1);
diff --git a/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp b/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
index cff3dad35e..ab32643061 100644
--- a/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
+++ b/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
@@ -52,7 +52,7 @@ using namespace QTestPrivate;
 Q_CONSTEXPR QFormLayout::ItemRole invalidRole = QFormLayout::ItemRole(3);
 
 struct QFormLayoutTakeRowResultHolder {
-    QFormLayoutTakeRowResultHolder(QFormLayout::TakeRowResult result) Q_DECL_NOTHROW
+    QFormLayoutTakeRowResultHolder(QFormLayout::TakeRowResult result) noexcept
         : labelItem(result.labelItem),
           fieldItem(result.fieldItem)
     {
@@ -66,20 +66,20 @@ struct QFormLayoutTakeRowResultHolder {
         if (fieldItem)
             disposer.setItem(0, QFormLayout::FieldRole, fieldItem);
     }
-    QFormLayoutTakeRowResultHolder(QFormLayoutTakeRowResultHolder &&other) Q_DECL_NOTHROW
+    QFormLayoutTakeRowResultHolder(QFormLayoutTakeRowResultHolder &&other) noexcept
         : labelItem(other.labelItem),
           fieldItem(other.fieldItem)
     {
         other.labelItem = nullptr;
         other.fieldItem = nullptr;
     }
-    QFormLayoutTakeRowResultHolder &operator=(QFormLayoutTakeRowResultHolder &&other) Q_DECL_NOTHROW
+    QFormLayoutTakeRowResultHolder &operator=(QFormLayoutTakeRowResultHolder &&other) noexcept
     {
         swap(other);
         return *this;
     }
 
-    void swap(QFormLayoutTakeRowResultHolder &other) Q_DECL_NOTHROW
+    void swap(QFormLayoutTakeRowResultHolder &other) noexcept
     {
         qSwap(labelItem, other.labelItem);
         qSwap(fieldItem, other.fieldItem);
diff --git a/tests/auto/widgets/kernel/qwidget/qwidget.pro b/tests/auto/widgets/kernel/qwidget/qwidget.pro
index c1908af2a2..d3fbd6d0d9 100644
--- a/tests/auto/widgets/kernel/qwidget/qwidget.pro
+++ b/tests/auto/widgets/kernel/qwidget/qwidget.pro
@@ -16,4 +16,4 @@ mac {
     OBJECTIVE_SOURCES += tst_qwidget_mac_helpers.mm
 }
 
-win32:!winrt: LIBS += -luser32 -lgdi32
+win32:!winrt: QMAKE_USE += user32 gdi32
diff --git a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
index 0f9e3164c3..89da56cd0c 100644
--- a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
+++ b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
@@ -2418,8 +2418,8 @@ void tst_QWidget::showMinimizedKeepsFocus()
 {
     if (m_platform == QStringLiteral("xcb"))
         QSKIP("QTBUG-26424");
-    if (m_platform == QStringLiteral("wayland"))
-        QSKIP("Wayland: This fails. Figure out why.");
+    if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
+        QSKIP("Window activation is not supported.");
     if (m_platform == QStringLiteral("offscreen"))
         QSKIP("Platform offscreen does not support showMinimized()");
 
@@ -2625,8 +2625,8 @@ void tst_QWidget::icon()
 
 void tst_QWidget::hideWhenFocusWidgetIsChild()
 {
-    if (m_platform == QStringLiteral("wayland"))
-        QSKIP("Wayland: This fails. Figure out why.");
+    if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
+        QSKIP("Window activation is not supported.");
 
     QScopedPointer<QWidget> testWidget(new QWidget);
     testWidget->setWindowTitle(__FUNCTION__);
@@ -5433,8 +5433,8 @@ void tst_QWidget::multipleToplevelFocusCheck()
     QSKIP("QTBUG-52974");
 #endif
 
-    if (m_platform == QStringLiteral("wayland"))
-        QSKIP("Wayland: This fails. Figure out why.");
+    if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
+        QSKIP("Window activation is not supported");
     else if (m_platform == QStringLiteral("winrt"))
         QSKIP("Winrt: Sometimes crashes in QTextLayout. - QTBUG-68297");
     TopLevelFocusCheck w1;
@@ -6146,7 +6146,11 @@ public:
         return false;
     }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *) override
+#else
     bool nativeEvent(const QByteArray &eventType, void *message, long *) override
+#endif
     {
         if (isMapNotify(eventType, message))
             gotExpectedMapNotify = true;
@@ -6154,7 +6158,11 @@ public:
     }
 
     // QAbstractNativeEventFilter interface
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *) override
+#else
     bool nativeEventFilter(const QByteArray &eventType, void *message, long *) override
+#endif
     {
         if (isMapNotify(eventType, message))
             gotExpectedGlobalEvent = true;
@@ -9527,8 +9535,8 @@ void tst_QWidget::setGraphicsEffect()
 
 void tst_QWidget::activateWindow()
 {
-    if (m_platform == QStringLiteral("wayland"))
-        QSKIP("Wayland: This fails. Figure out why.");
+    if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
+        QSKIP("Window activation is not supported.");
 
     // Test case for QTBUG-26711
 
@@ -9595,8 +9603,8 @@ void tst_QWidget::openModal_taskQTBUG_5804()
 
 void tst_QWidget::focusProxyAndInputMethods()
 {
-    if (m_platform == QStringLiteral("wayland"))
-        QSKIP("Wayland: This fails. Figure out why.");
+    if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
+        QSKIP("Window activation is not supported.");
     QScopedPointer<QWidget> toplevel(new QWidget(0, Qt::X11BypassWindowManagerHint));
     toplevel->resize(200, 200);
     toplevel->setAttribute(Qt::WA_InputMethodEnabled, true);
diff --git a/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp b/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp
index 007825d39c..a17a9f6c33 100644
--- a/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp
+++ b/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp
@@ -124,13 +124,19 @@ void tst_QAbstractScrollArea::scrollBarWidgets()
     QCOMPARE(area.scrollBarWidgets(Qt::AlignTop), QWidgetList());
     QCOMPARE(area.scrollBarWidgets(Qt::AlignBottom), w2List);
 
+    auto sort = [](const QWidgetList l) {
+        QWidgetList list = l;
+        std::sort(list.begin(), list.end());
+        return list;
+    };
+
     // two widgets at Bottom.
     area.addScrollBarWidget(w3, Qt::AlignBottom);
-    QCOMPARE(area.scrollBarWidgets(all).toSet(), allList.toSet());
+    QCOMPARE(sort(area.scrollBarWidgets(all)), sort(allList));
     QCOMPARE(area.scrollBarWidgets(Qt::AlignLeft), w1List);
     QCOMPARE(area.scrollBarWidgets(Qt::AlignRight), QWidgetList());
     QCOMPARE(area.scrollBarWidgets(Qt::AlignTop), QWidgetList());
-    QCOMPARE(area.scrollBarWidgets(Qt::AlignBottom).toSet(), (w2List + w3List).toSet());
+    QCOMPARE(sort(area.scrollBarWidgets(Qt::AlignBottom)), sort(w2List + w3List));
 
     //delete
     delete w1;
diff --git a/tests/auto/widgets/widgets/qdockwidget/tst_qdockwidget.cpp b/tests/auto/widgets/widgets/qdockwidget/tst_qdockwidget.cpp
index f8ce6a2c0a..625116654d 100644
--- a/tests/auto/widgets/widgets/qdockwidget/tst_qdockwidget.cpp
+++ b/tests/auto/widgets/widgets/qdockwidget/tst_qdockwidget.cpp
@@ -670,7 +670,11 @@ void tst_QDockWidget::dockLocationChanged()
     spy.clear();
 
     dw.setFloating(true);
-    QTest::qWait(100);
+    QTRY_COMPARE(spy.count(), 1);
+    QCOMPARE(qvariant_cast<Qt::DockWidgetArea>(spy.at(0).at(0)),
+             Qt::NoDockWidgetArea);
+    spy.clear();
+
     dw.setFloating(false);
     QTRY_COMPARE(spy.count(), 1);
     QCOMPARE(qvariant_cast<Qt::DockWidgetArea>(spy.at(0).at(0)),
diff --git a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
index 95799905de..7861065de9 100644
--- a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
+++ b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
@@ -3615,6 +3615,14 @@ void tst_QLineEdit::task174640_editingFinished()
 
     le2->setFocus();
     QTRY_VERIFY(le2->hasFocus());
+    // editingFinished will not be emitted anew because no editing happened
+    QCOMPARE(editingFinishedSpy.count(), 0);
+
+    le1->setFocus();
+    QTRY_VERIFY(le1->hasFocus());
+    QTest::keyPress(le1, Qt::Key_Plus);
+    le2->setFocus();
+    QTRY_VERIFY(le2->hasFocus());
     QCOMPARE(editingFinishedSpy.count(), 1);
     editingFinishedSpy.clear();
 
@@ -3632,6 +3640,8 @@ void tst_QLineEdit::task174640_editingFinished()
     delete testMenu1;
     QCOMPARE(editingFinishedSpy.count(), 0);
     QTRY_VERIFY(le1->hasFocus());
+    // Ensure le1 has been edited
+    QTest::keyPress(le1, Qt::Key_Plus);
 
     QMenu *testMenu2 = new QMenu(le2);
     testMenu2->addAction("foo2");
diff --git a/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp b/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
index 67b79e3faf..046899ce05 100644
--- a/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
+++ b/tests/auto/widgets/widgets/qmdiarea/tst_qmdiarea.cpp
@@ -333,6 +333,7 @@ void tst_QMdiArea::subWindowActivated()
     for ( i = 0; i < count; ++i ) {
         QWidget *widget = new QWidget(workspace, 0);
         widget->setAttribute(Qt::WA_DeleteOnClose);
+        widget->setFocus();
         workspace->addSubWindow(widget)->show();
         widget->show();
         qApp->processEvents();
diff --git a/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp b/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
index 803b72f36e..b9d6888263 100644
--- a/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
+++ b/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
@@ -206,7 +206,7 @@ private slots:
     void stepModifierPressAndHold_data();
     void stepModifierPressAndHold();
 public slots:
-    void valueChangedHelper(const QString &);
+    void textChangedHelper(const QString &);
     void valueChangedHelper(int);
 private:
     QStringList actualTexts;
@@ -486,7 +486,7 @@ void tst_QSpinBox::setPrefixSuffix()
     }
 }
 
-void tst_QSpinBox::valueChangedHelper(const QString &text)
+void tst_QSpinBox::textChangedHelper(const QString &text)
 {
     actualTexts << text;
 }
@@ -564,7 +564,7 @@ void tst_QSpinBox::setTracking()
     QSpinBox spin(0);
     spin.setKeyboardTracking(tracking);
     spin.show();
-    connect(&spin, SIGNAL(valueChanged(QString)), this, SLOT(valueChangedHelper(QString)));
+    connect(&spin, &QSpinBox::textChanged, this, &tst_QSpinBox::textChangedHelper);
 
     keys.simulate(&spin);
     QCOMPARE(actualTexts, texts);
diff --git a/tests/auto/widgets/widgets/qtabwidget/qtabwidget.pro b/tests/auto/widgets/widgets/qtabwidget/qtabwidget.pro
index 6523209c32..b61cc8fa13 100644
--- a/tests/auto/widgets/widgets/qtabwidget/qtabwidget.pro
+++ b/tests/auto/widgets/widgets/qtabwidget/qtabwidget.pro
@@ -8,4 +8,4 @@ INCLUDEPATH += ../
 HEADERS +=  
 SOURCES += tst_qtabwidget.cpp
 
-win32:!winrt: LIBS += -luser32
+win32:!winrt: QMAKE_USE += user32
diff --git a/tests/auto/xml/sax/qxmlsimplereader/parser/main.cpp b/tests/auto/xml/sax/qxmlsimplereader/parser/main.cpp
index 15f10232bd..b5d9fea315 100644
--- a/tests/auto/xml/sax/qxmlsimplereader/parser/main.cpp
+++ b/tests/auto/xml/sax/qxmlsimplereader/parser/main.cpp
@@ -72,7 +72,7 @@ int main(int argc, const char *argv[])
 
     QFile in_file(file_name);
     if (!in_file.open(QIODevice::ReadOnly)) {
-        qerr << "Could not open " << file_name << ": " << strerror(errno) << endl;
+        qerr << "Could not open " << file_name << ": " << strerror(errno) << Qt::endl;
         return 1;
     }
 
@@ -87,7 +87,7 @@ int main(int argc, const char *argv[])
     } else {
         _out_file.setFileName(out_file_name);
         if (!_out_file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
-            qerr << "Could not open " << out_file_name << ": " << strerror(errno) << endl;
+            qerr << "Could not open " << out_file_name << ": " << strerror(errno) << Qt::endl;
             return 1;
         }
         _out_stream.setDevice(&_out_file);
diff --git a/tests/auto/xml/sax/qxmlsimplereader/xmldocs/valid/sa/089.xml.bak b/tests/auto/xml/sax/qxmlsimplereader/xmldocs/valid/sa/089.xml.bak
deleted file mode 100644
index 2d80c8f3fb..0000000000
--- a/tests/auto/xml/sax/qxmlsimplereader/xmldocs/valid/sa/089.xml.bak
+++ /dev/null
@@ -1,5 +0,0 @@
-<!DOCTYPE doc [

-<!ENTITY e "&#x10000;&#x10FFFD;&#x10FFFF;">

-<!ELEMENT doc (#PCDATA)>

-]>

-<doc>&e;</doc>

diff --git a/tests/baselineserver/shared/baselineprotocol.cpp b/tests/baselineserver/shared/baselineprotocol.cpp
index c9f9cd9bd2..6357024341 100644
--- a/tests/baselineserver/shared/baselineprotocol.cpp
+++ b/tests/baselineserver/shared/baselineprotocol.cpp
@@ -38,6 +38,7 @@
 #include <QDir>
 #include <QTime>
 #include <QPointer>
+#include <QRegExp>
 
 const QString PI_Project(QLS("Project"));
 const QString PI_TestCase(QLS("TestCase"));
diff --git a/tests/benchmarks/corelib/kernel/kernel.pro b/tests/benchmarks/corelib/kernel/kernel.pro
index 02eeeaa254..92f7174419 100644
--- a/tests/benchmarks/corelib/kernel/kernel.pro
+++ b/tests/benchmarks/corelib/kernel/kernel.pro
@@ -5,7 +5,8 @@ SUBDIRS = \
         qmetatype \
         qobject \
         qvariant \
-        qcoreapplication
+        qcoreapplication \
+        qtimer_vs_qmetaobject
 
 !qtHaveModule(widgets): SUBDIRS -= \
     qmetaobject \
diff --git a/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp
index 66a29780f0..6af5b8d586 100644
--- a/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp
+++ b/tests/benchmarks/corelib/kernel/qtimer_vs_qmetaobject/tst_qtimer_vs_qmetaobject.cpp
@@ -28,6 +28,7 @@
 
 #include <QtCore>
 #include <QtTest/QtTest>
+#include <QThread>
 
 #define INVOKE_COUNT 10000
 
@@ -35,8 +36,10 @@ class qtimer_vs_qmetaobject : public QObject
 {
     Q_OBJECT
 private slots:
-    void testZeroTimerSingleShot();
-    void testQueuedInvokeMethod();
+    void bench();
+    void bench_data();
+    void benchBackgroundThread();
+    void benchBackgroundThread_data() { bench_data(); }
 };
 
 class InvokeCounter : public QObject {
@@ -47,36 +50,89 @@ public slots:
     void invokeSlot() {
         count++;
         if (count == INVOKE_COUNT)
-            QTestEventLoop::instance().exitLoop();
+            emit allInvoked();
     }
+signals:
+    void allInvoked();
 protected:
     int count;
 };
 
-void qtimer_vs_qmetaobject::testZeroTimerSingleShot()
+void qtimer_vs_qmetaobject::bench()
 {
+    QFETCH(int, type);
+
+    std::function<void(InvokeCounter*)> invoke;
+    if (type == 0) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QTimer::singleShot(0, invokeCounter, SLOT(invokeSlot()));
+        };
+    } else if (type == 1) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QTimer::singleShot(0, invokeCounter, &InvokeCounter::invokeSlot);
+        };
+    } else if (type == 2) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QTimer::singleShot(0, invokeCounter, [invokeCounter]() {
+                invokeCounter->invokeSlot();
+            });
+        };
+    } else if (type == 3) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QTimer::singleShot(0, [invokeCounter]() {
+                invokeCounter->invokeSlot();
+            });
+        };
+    } else if (type == 4) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QMetaObject::invokeMethod(invokeCounter, "invokeSlot", Qt::QueuedConnection);
+        };
+    } else if (type == 5) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QMetaObject::invokeMethod(invokeCounter, &InvokeCounter::invokeSlot, Qt::QueuedConnection);
+        };
+    } else if (type == 6) {
+        invoke = [](InvokeCounter* invokeCounter) {
+            QMetaObject::invokeMethod(invokeCounter, [invokeCounter]() {
+                invokeCounter->invokeSlot();
+            }, Qt::QueuedConnection);
+        };
+    } else {
+        QFAIL("unhandled data tag");
+    }
+
     QBENCHMARK {
         InvokeCounter invokeCounter;
+        QSignalSpy spy(&invokeCounter, &InvokeCounter::allInvoked);
         for(int i = 0; i < INVOKE_COUNT; ++i) {
-            QTimer::singleShot(0, &invokeCounter, SLOT(invokeSlot()));
+            invoke(&invokeCounter);
         }
-        QTestEventLoop::instance().enterLoop(10);
-        QVERIFY(!QTestEventLoop::instance().timeout());
+        QVERIFY(spy.wait(10000));
     }
 }
 
-void qtimer_vs_qmetaobject::testQueuedInvokeMethod()
+void qtimer_vs_qmetaobject::bench_data()
 {
-    QBENCHMARK {
-        InvokeCounter invokeCounter;
-        for(int i = 0; i < INVOKE_COUNT; ++i) {
-            QMetaObject::invokeMethod(&invokeCounter, "invokeSlot", Qt::QueuedConnection);
-        }
-        QTestEventLoop::instance().enterLoop(10);
-        QVERIFY(!QTestEventLoop::instance().timeout());
-    }
+    QTest::addColumn<int>("type");
+    QTest::addRow("singleShot_slot") << 0;
+    QTest::addRow("singleShot_pmf") << 1;
+    QTest::addRow("singleShot_functor") << 2;
+    QTest::addRow("singleShot_functor_noctx") << 3;
+    QTest::addRow("invokeMethod_string") << 4;
+    QTest::addRow("invokeMethod_pmf") << 5;
+    QTest::addRow("invokeMethod_functor") << 6;
 }
 
+void qtimer_vs_qmetaobject::benchBackgroundThread()
+{
+#if !QT_CONFIG(cxx11_future)
+    QSKIP("This test requires QThread::create");
+#else
+    QScopedPointer<QThread> thread(QThread::create([this]() { bench(); }));
+    thread->start();
+    QVERIFY(thread->wait());
+#endif
+}
 
 QTEST_MAIN(qtimer_vs_qmetaobject)
 
diff --git a/tests/benchmarks/corelib/tools/qdatetime/main.cpp b/tests/benchmarks/corelib/tools/qdatetime/main.cpp
index 2c1e3d97ae..b693400376 100644
--- a/tests/benchmarks/corelib/tools/qdatetime/main.cpp
+++ b/tests/benchmarks/corelib/tools/qdatetime/main.cpp
@@ -35,10 +35,7 @@ class tst_QDateTime : public QObject
 {
     Q_OBJECT
 
-    enum
-#if defined(Q_COMPILER_CLASS_ENUM) || (defined(Q_CC_MSVC) && _MSC_VER >= 1700)
-        : qint64
-#endif
+    enum : qint64
     {
         SECS_PER_DAY = 86400,
         MSECS_PER_DAY = 86400000,
diff --git a/tests/benchmarks/gui/image/qimageconversion/tst_qimageconversion.cpp b/tests/benchmarks/gui/image/qimageconversion/tst_qimageconversion.cpp
index 605df100ee..570c7b59fa 100644
--- a/tests/benchmarks/gui/image/qimageconversion/tst_qimageconversion.cpp
+++ b/tests/benchmarks/gui/image/qimageconversion/tst_qimageconversion.cpp
@@ -357,10 +357,10 @@ void tst_QImageConversion::convertGenericInplace()
     QFETCH(QImage::Format, outputFormat);
 
     QImage::Format inputFormat = inputImage.format();
-    QImage tmpImage = qMove(inputImage);
+    QImage tmpImage = std::move(inputImage);
 
     QBENCHMARK {
-        tmpImage = (qMove(tmpImage).convertToFormat(outputFormat)).convertToFormat(inputFormat);
+        tmpImage = (std::move(tmpImage).convertToFormat(outputFormat)).convertToFormat(inputFormat);
     }
 }
 
diff --git a/tests/manual/cocoa/noclickthrough/main.cpp b/tests/manual/cocoa/noclickthrough/main.cpp
new file mode 100644
index 0000000000..eee7729999
--- /dev/null
+++ b/tests/manual/cocoa/noclickthrough/main.cpp
@@ -0,0 +1,48 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2019 The Qt Company Ltd.
+ ** Contact: https://www.qt.io/licensing/
+ **
+ ** This file is part of the test suite of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+ ** Commercial License Usage
+ ** Licensees holding valid commercial Qt licenses may use this file in
+ ** accordance with the commercial license agreement provided with the
+ ** Software or, alternatively, in accordance with the terms contained in
+ ** a written agreement between you and The Qt Company. For licensing terms
+ ** and conditions see https://www.qt.io/terms-conditions. For further
+ ** information use the contact form at https://www.qt.io/contact-us.
+ **
+ ** GNU General Public License Usage
+ ** Alternatively, this file may be used under the terms of the GNU
+ ** General Public License version 3 as published by the Free Software
+ ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+ ** included in the packaging of this file. Please review the following
+ ** information to ensure the GNU General Public License requirements will
+ ** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#include <QtWidgets>
+
+int main(int argc, char **argv)
+{
+    QApplication a(argc, argv);
+    QWidget w;
+    QVBoxLayout *vbox = new QVBoxLayout;
+    QLabel *label = new QLabel("Make the window inactive, but visible.\n"
+                               "Then click on the Two item.\n"
+                               "The item should not be selected, but the window should be active.");
+    vbox->addWidget(label);
+    QListWidget *list = new QListWidget;
+    list->addItems(QStringList() << "One" << "Two" << "Three");
+    list->selectionModel()->select(list->model()->index(0, 0), QItemSelectionModel::Select);
+    list->viewport()->setAttribute(Qt::WA_MacNoClickThrough);
+    vbox->addWidget(list);
+    w.setLayout(vbox);
+    w.show();
+    return a.exec();
+}
diff --git a/tests/manual/cocoa/noclickthrough/noclickthrough.pro b/tests/manual/cocoa/noclickthrough/noclickthrough.pro
new file mode 100644
index 0000000000..a8e30cb146
--- /dev/null
+++ b/tests/manual/cocoa/noclickthrough/noclickthrough.pro
@@ -0,0 +1,4 @@
+QT += widgets
+TEMPLATE = app
+TARGET = noclickthrough
+SOURCES += main.cpp
diff --git a/tests/manual/diaglib/diaglib.pri b/tests/manual/diaglib/diaglib.pri
index 9f10167136..b57ee75841 100644
--- a/tests/manual/diaglib/diaglib.pri
+++ b/tests/manual/diaglib/diaglib.pri
@@ -12,7 +12,7 @@ HEADERS += \
 
 win32:!winrt:  {
     SOURCES += $$PWD/nativewindowdump_win.cpp
-    LIBS *= -luser32
+    QMAKE_USE += user32
 } else {
     SOURCES += $$PWD/nativewindowdump.cpp
 }
diff --git a/tests/manual/markdown/html2md.cpp b/tests/manual/markdown/html2md.cpp
new file mode 100644
index 0000000000..19d6ff06af
--- /dev/null
+++ b/tests/manual/markdown/html2md.cpp
@@ -0,0 +1,64 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2019 The Qt Company Ltd.
+ ** Contact: https://www.qt.io/licensing/
+ **
+ ** This file is part of the test suite of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+ ** Commercial License Usage
+ ** Licensees holding valid commercial Qt licenses may use this file in
+ ** accordance with the commercial license agreement provided with the
+ ** Software or, alternatively, in accordance with the terms contained in
+ ** a written agreement between you and The Qt Company. For licensing terms
+ ** and conditions see https://www.qt.io/terms-conditions. For further
+ ** information use the contact form at https://www.qt.io/contact-us.
+ **
+ ** GNU General Public License Usage
+ ** Alternatively, this file may be used under the terms of the GNU
+ ** General Public License version 3 as published by the Free Software
+ ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+ ** included in the packaging of this file. Please review the following
+ ** information to ensure the GNU General Public License requirements will
+ ** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#include <QCommandLineParser>
+#include <QDebug>
+#include <QFile>
+#include <QGuiApplication>
+#include <QTextDocument>
+
+int main(int argc, char **argv)
+{
+    QGuiApplication app(argc, argv);
+    QGuiApplication::setApplicationVersion(QT_VERSION_STR);
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Converts the Qt-supported subset of HTML to Markdown.");
+    parser.addHelpOption();
+    parser.addVersionOption();
+    parser.addPositionalArgument(QGuiApplication::translate("main", "input"),
+                                 QGuiApplication::translate("main", "input file"));
+    parser.addPositionalArgument(QGuiApplication::translate("main", "output"),
+                                 QGuiApplication::translate("main", "output file"));
+    parser.process(app);
+    if (parser.positionalArguments().count() != 2)
+        parser.showHelp(1);
+
+    QFile inFile(parser.positionalArguments().first());
+    if (!inFile.open(QIODevice::ReadOnly)) {
+        qFatal("failed to open %s for reading", parser.positionalArguments().first().toLocal8Bit().data());
+        exit(2);
+    }
+    QFile outFile(parser.positionalArguments().at(1));
+    if (!outFile.open(QIODevice::WriteOnly)) {
+        qFatal("failed to open %s for writing", parser.positionalArguments().at(1).toLocal8Bit().data());
+        exit(2);
+    }
+    QTextDocument doc;
+    doc.setHtml(QString::fromUtf8(inFile.readAll()));
+    outFile.write(doc.toMarkdown().toUtf8());
+}
diff --git a/tests/manual/markdown/html2md.pro b/tests/manual/markdown/html2md.pro
new file mode 100644
index 0000000000..4d6254e5a0
--- /dev/null
+++ b/tests/manual/markdown/html2md.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+TARGET = html2md
+INCLUDEPATH += .
+#QT += gui-private
+SOURCES += html2md.cpp
+
diff --git a/tests/testserver/apache2/apache2.sh b/tests/testserver/apache2/apache2.sh
index 4b0c74e2c4..d5075c7096 100755
--- a/tests/testserver/apache2/apache2.sh
+++ b/tests/testserver/apache2/apache2.sh
@@ -73,5 +73,8 @@ touch -d "2007-05-22 12:04:57 GMT" /home/$USER/www/htdocs/fluke.gif
 # Create 10MB file for use by tst_Q*::downloadBigFile and interruption tests:
 su $USER -c "/bin/dd if=/dev/zero of=~/www/htdocs/mediumfile bs=1 count=0 seek=10000000"
 
+# Emulate test server's hierarchy:
+su $USER -c "ln -s ~/www/htdocs/rfcs/rfc2616.html ~/www/htdocs/deflate/"
+
 # enable service with installed configurations
 service apache2 restart
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol-expire.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol-expire.cgi
new file mode 100755
index 0000000000..7dc506fc1e
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol-expire.cgi
@@ -0,0 +1,7 @@
+#!/bin/bash
+# cache control takes precedence over expires
+echo "Cache-Control: max-age=-1"
+echo "Expires: Mon, 30 Oct 2028 14:19:41 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol.cgi
new file mode 100755
index 0000000000..f2edfc161f
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol.cgi
@@ -0,0 +1,13 @@
+#!/bin/bash
+if [ ! -z ${HTTP_IF_MODIFIED_SINCE} ] ; then
+    echo "Status: 304"
+    echo ""
+    exit;
+fi
+
+cc=`echo "${QUERY_STRING}" | sed -e s/%20/\ /g`
+echo "Cache-Control: $cc"
+echo "Last-Modified: Sat, 31 Oct 1981 06:00:00 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol200.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol200.cgi
new file mode 100755
index 0000000000..e44d5ed570
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_cachecontrol200.cgi
@@ -0,0 +1,9 @@
+#!/bin/bash
+cc=`echo "${QUERY_STRING}" | sed -e s/%20/\ /g`
+echo "Status: 200"
+echo "Cache-Control: $cc"
+echo "Last-Modified: Sat, 31 Oct 1981 06:00:00 GMT"
+echo "Content-type: text/html";
+echo "X-Script: $0"
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag200.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag200.cgi
new file mode 100755
index 0000000000..0966abfdd1
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag200.cgi
@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "ETag: foo"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag304.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag304.cgi
new file mode 100755
index 0000000000..91a4b922bd
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_etag304.cgi
@@ -0,0 +1,11 @@
+#!/bin/bash
+if [ ! -z ${HTTP_IF_NONE_MATCH} ] ; then
+    echo "Status: 304"
+    echo ""
+    exit;
+fi
+
+echo "ETag: foo"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires200.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires200.cgi
new file mode 100755
index 0000000000..e18ebc86ad
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires200.cgi
@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "Expires: Sat, 31 Oct 1981 6:00:00 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires304.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires304.cgi
new file mode 100755
index 0000000000..1c7de1cd77
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_expires304.cgi
@@ -0,0 +1,11 @@
+#!/bin/bash
+if [ ${HTTP_IF_MODIFIED_SINCE} == "Mon, 30 Oct 2028 14:19:41 GMT" ] ; then
+    echo "Status: 304"
+    echo ""
+    exit;
+fi
+
+echo "Expires: Mon, 30 Oct 2028 14:19:41 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified200.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified200.cgi
new file mode 100755
index 0000000000..5dc219b1e7
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified200.cgi
@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "Last-Modified: Sat, 31 Oct 1981 6:00:00 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified304.cgi b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified304.cgi
new file mode 100755
index 0000000000..bdf23bed2f
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/cgi-bin/httpcachetest_lastModified304.cgi
@@ -0,0 +1,11 @@
+#!/bin/bash
+if [ ${HTTP_IF_MODIFIED_SINCE} == "Sat, 31 Oct 1981 06:00:00 GMT" ] ; then
+    echo "Status: 304"
+    echo ""
+    exit;
+fi
+
+echo "Last-Modified: Sat, 31 Oct 1981 06:00:00 GMT"
+echo "Content-type: text/html";
+echo ""
+echo "Hello World!"
diff --git a/tests/testserver/apache2/testdata/www/htdocs/rfcs/.gitattributes b/tests/testserver/apache2/testdata/www/htdocs/rfcs/.gitattributes
new file mode 100644
index 0000000000..1d09ee726e
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/htdocs/rfcs/.gitattributes
@@ -0,0 +1 @@
+rfc2616.html binary
diff --git a/tests/testserver/apache2/testdata/www/htdocs/rfcs/rfc2616.html b/tests/testserver/apache2/testdata/www/htdocs/rfcs/rfc2616.html
new file mode 100644
index 0000000000..0e3282fb8d
--- /dev/null
+++ b/tests/testserver/apache2/testdata/www/htdocs/rfcs/rfc2616.html
@@ -0,0 +1,8380 @@
+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
+<html><head><title>RFC 2616 (rfc2616) - Hypertext Transfer Protocol -- HTTP/1.1</title>

+

+

+

+<meta name="description" content="RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1">

+<meta name="obsoletes" content="RFC2068">

+<script language="JavaScript1.2">

+function erfc(s)

+{document.write("<A href=\"/rfccomment.php?rfcnum="+s+"\" target=\"_blank\" onclick=\"window.open('/rfccomment.php?rfcnum="+s+"','Popup','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=680,height=530,left=30,top=43'); return false;\")>Comment on RFC "+s+"</A>\n");}

+//-->

+</script></head><body bgcolor="#ffffff" text="#000000">

+<p align="center"><img src="rfc2616_files/library.htm" alt="" align="middle" border="0" height="62" width="150"></p>

+<h1 align="center">RFC 2616 (RFC2616)</h1>

+<p align="center">Internet RFC/STD/FYI/BCP Archives</p>

+

+<div align="center">[ <a href="http://firefly.troll.no/rfcs/">RFC Index</a> | <a href="http://firefly.troll.no/rfcs/rfcsearch.html">RFC Search</a> | <a href="http://firefly.troll.no/faqs/">Usenet FAQs</a> | <a href="http://firefly.troll.no/contrib/">Web FAQs</a> | <a href="http://firefly.troll.no/docs/">Documents</a> | <a href="http://www.city-data.com/">Cities</a> ]

+<p>

+<strong>Alternate Formats:</strong>

+ <a href="http://firefly.troll.no/ftp/rfc/rfc2616.txt">rfc2616.txt</a> |

+ <a href="http://firefly.troll.no/ftp/rfc/rfc2616.ps">rfc2616.ps</a> |

+ <a href="http://firefly.troll.no/ftp/rfc/rfc2616.pdf">rfc2616.pdf</a></p></div>

+<p align="center"><script language="JavaScript"><!--

+erfc("2616");

+// --></script><a href="http://firefly.troll.no/rfccomment.php?rfcnum=2616" target="_blank" onclick="window.open('/rfccomment.php?rfcnum=2616','Popup','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=680,height=530,left=30,top=43'); return false;" )="">Comment on RFC 2616</a>

+</p>

+<h3 align="center">RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1</h3>

+<hr noshade="noshade" size="2">

+<pre>

+Network Working Group                                      R. Fielding

+Request for Comments: 2616                                   UC Irvine

+Obsoletes: 2068                                              J. Gettys

+Category: Standards Track                                   Compaq/W3C

+                                                              J. Mogul

+                                                                Compaq

+                                                            H. Frystyk

+                                                               W3C/MIT

+                                                           L. Masinter

+                                                                 Xerox

+                                                              P. Leach

+                                                             Microsoft

+                                                        T. Berners-Lee

+                                                               W3C/MIT

+                                                             June 1999

+

+                Hypertext Transfer Protocol -- HTTP/1.1

+

+Status of this Memo

+

+   This document specifies an Internet standards track protocol for the

+   Internet community, and requests discussion and suggestions for

+   improvements.  Please refer to the current edition of the "Internet

+   Official Protocol Standards" (STD 1) for the standardization state

+   and status of this protocol.  Distribution of this memo is unlimited.

+

+Copyright Notice

+

+   Copyright (C) The Internet Society (1999).  All Rights Reserved.

+

+Abstract

+

+   The Hypertext Transfer Protocol (HTTP) is an application-level

+   protocol for distributed, collaborative, hypermedia information

+   systems. It is a generic, stateless, protocol which can be used for

+   many tasks beyond its use for hypertext, such as name servers and

+   distributed object management systems, through extension of its

+   request methods, error codes and headers [47]. A feature of HTTP is

+   the typing and negotiation of data representation, allowing systems

+   to be built independently of the data being transferred.

+

+   HTTP has been in use by the World-Wide Web global information

+   initiative since 1990. This specification defines the protocol

+   referred to as "HTTP/1.1", and is an update to <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> [33].

+

+Table of Contents

+

+   1   Introduction ...................................................7

+   1.1    Purpose......................................................7

+   1.2   Requirements .................................................8

+   1.3   Terminology ..................................................8

+   1.4   Overall Operation ...........................................12

+   2   Notational Conventions and Generic Grammar ....................14

+   2.1   Augmented BNF ...............................................14

+   2.2   Basic Rules .................................................15

+   3   Protocol Parameters ...........................................17

+   3.1   HTTP Version ................................................17

+   3.2   Uniform Resource Identifiers ................................18

+   3.2.1    General Syntax ...........................................19

+   3.2.2    http URL .................................................19

+   3.2.3    URI Comparison ...........................................20

+   3.3   Date/Time Formats ...........................................20

+   3.3.1    Full Date ................................................20

+   3.3.2    Delta Seconds ............................................21

+   3.4   Character Sets ..............................................21

+   3.4.1    Missing Charset ..........................................22

+   3.5   Content Codings .............................................23

+   3.6   Transfer Codings ............................................24

+   3.6.1    Chunked Transfer Coding ..................................25

+   3.7   Media Types .................................................26

+   3.7.1    Canonicalization and Text Defaults .......................27

+   3.7.2    Multipart Types ..........................................27

+   3.8   Product Tokens ..............................................28

+   3.9   Quality Values ..............................................29

+   3.10  Language Tags ...............................................29

+   3.11  Entity Tags .................................................30

+   3.12  Range Units .................................................30

+   4   HTTP Message ..................................................31

+   4.1   Message Types ...............................................31

+   4.2   Message Headers .............................................31

+   4.3   Message Body ................................................32

+   4.4   Message Length ..............................................33

+   4.5   General Header Fields .......................................34

+   5   Request .......................................................35

+   5.1   Request-Line ................................................35

+   5.1.1    Method ...................................................36

+   5.1.2    Request-URI ..............................................36

+   5.2   The Resource Identified by a Request ........................38

+   5.3   Request Header Fields .......................................38

+   6   Response ......................................................39

+   6.1   Status-Line .................................................39

+   6.1.1    Status Code and Reason Phrase ............................39

+   6.2   Response Header Fields ......................................41

+

+   7   Entity ........................................................42

+   7.1   Entity Header Fields ........................................42

+   7.2   Entity Body .................................................43

+   7.2.1    Type .....................................................43

+   7.2.2    Entity Length ............................................43

+   8   Connections ...................................................44

+   8.1   Persistent Connections ......................................44

+   8.1.1    Purpose ..................................................44

+   8.1.2    Overall Operation ........................................45

+   8.1.3    Proxy Servers ............................................46

+   8.1.4    Practical Considerations .................................46

+   8.2   Message Transmission Requirements ...........................47

+   8.2.1    Persistent Connections and Flow Control ..................47

+   8.2.2    Monitoring Connections for Error Status Messages .........48

+   8.2.3    Use of the 100 (Continue) Status .........................48

+   8.2.4    Client Behavior if Server Prematurely Closes Connection ..50

+   9   Method Definitions ............................................51

+   9.1   Safe and Idempotent Methods .................................51

+   9.1.1    Safe Methods .............................................51

+   9.1.2    Idempotent Methods .......................................51

+   9.2   OPTIONS .....................................................52

+   9.3   GET .........................................................53

+   9.4   HEAD ........................................................54

+   9.5   POST ........................................................54

+   9.6   PUT .........................................................55

+   9.7   DELETE ......................................................56

+   9.8   TRACE .......................................................56

+   9.9   CONNECT .....................................................57

+   10   Status Code Definitions ......................................57

+   10.1  Informational 1xx ...........................................57

+   10.1.1   100 Continue .............................................58

+   10.1.2   101 Switching Protocols ..................................58

+   10.2  Successful 2xx ..............................................58

+   10.2.1   200 OK ...................................................58

+   10.2.2   201 Created ..............................................59

+   10.2.3   202 Accepted .............................................59

+   10.2.4   203 Non-Authoritative Information ........................59

+   10.2.5   204 No Content ...........................................60

+   10.2.6   205 Reset Content ........................................60

+   10.2.7   206 Partial Content ......................................60

+   10.3  Redirection 3xx .............................................61

+   10.3.1   300 Multiple Choices .....................................61

+   10.3.2   301 Moved Permanently ....................................62

+   10.3.3   302 Found ................................................62

+   10.3.4   303 See Other ............................................63

+   10.3.5   304 Not Modified .........................................63

+   10.3.6   305 Use Proxy ............................................64

+   10.3.7   306 (Unused) .............................................64

+

+   10.3.8   307 Temporary Redirect ...................................65

+   10.4  Client Error 4xx ............................................65

+   10.4.1    400 Bad Request .........................................65

+   10.4.2    401 Unauthorized ........................................66

+   10.4.3    402 Payment Required ....................................66

+   10.4.4    403 Forbidden ...........................................66

+   10.4.5    404 Not Found ...........................................66

+   10.4.6    405 Method Not Allowed ..................................66

+   10.4.7    406 Not Acceptable ......................................67

+   10.4.8    407 Proxy Authentication Required .......................67

+   10.4.9    408 Request Timeout .....................................67

+   10.4.10   409 Conflict ............................................67

+   10.4.11   410 Gone ................................................68

+   10.4.12   411 Length Required .....................................68

+   10.4.13   412 Precondition Failed .................................68

+   10.4.14   413 Request Entity Too Large ............................69

+   10.4.15   414 Request-URI Too Long ................................69

+   10.4.16   415 Unsupported Media Type ..............................69

+   10.4.17   416 Requested Range Not Satisfiable .....................69

+   10.4.18   417 Expectation Failed ..................................70

+   10.5  Server Error 5xx ............................................70

+   10.5.1   500 Internal Server Error ................................70

+   10.5.2   501 Not Implemented ......................................70

+   10.5.3   502 Bad Gateway ..........................................70

+   10.5.4   503 Service Unavailable ..................................70

+   10.5.5   504 Gateway Timeout ......................................71

+   10.5.6   505 HTTP Version Not Supported ...........................71

+   11   Access Authentication ........................................71

+   12   Content Negotiation ..........................................71

+   12.1  Server-driven Negotiation ...................................72

+   12.2  Agent-driven Negotiation ....................................73

+   12.3  Transparent Negotiation .....................................74

+   13   Caching in HTTP ..............................................74

+   13.1.1   Cache Correctness ........................................75

+   13.1.2   Warnings .................................................76

+   13.1.3   Cache-control Mechanisms .................................77

+   13.1.4   Explicit User Agent Warnings .............................78

+   13.1.5   Exceptions to the Rules and Warnings .....................78

+   13.1.6   Client-controlled Behavior ...............................79

+   13.2  Expiration Model ............................................79

+   13.2.1   Server-Specified Expiration ..............................79

+   13.2.2   Heuristic Expiration .....................................80

+   13.2.3   Age Calculations .........................................80

+   13.2.4   Expiration Calculations ..................................83

+   13.2.5   Disambiguating Expiration Values .........................84

+   13.2.6   Disambiguating Multiple Responses ........................84

+   13.3  Validation Model ............................................85

+   13.3.1   Last-Modified Dates ......................................86

+

+   13.3.2   Entity Tag Cache Validators ..............................86

+   13.3.3   Weak and Strong Validators ...............................86

+   13.3.4   Rules for When to Use Entity Tags and Last-Modified Dates.89

+   13.3.5   Non-validating Conditionals ..............................90

+   13.4  Response Cacheability .......................................91

+   13.5  Constructing Responses From Caches ..........................92

+   13.5.1   End-to-end and Hop-by-hop Headers ........................92

+   13.5.2   Non-modifiable Headers ...................................92

+   13.5.3   Combining Headers ........................................94

+   13.5.4   Combining Byte Ranges ....................................95

+   13.6  Caching Negotiated Responses ................................95

+   13.7  Shared and Non-Shared Caches ................................96

+   13.8  Errors or Incomplete Response Cache Behavior ................97

+   13.9  Side Effects of GET and HEAD ................................97

+   13.10   Invalidation After Updates or Deletions ...................97

+   13.11   Write-Through Mandatory ...................................98

+   13.12   Cache Replacement .........................................99

+   13.13   History Lists .............................................99

+   14   Header Field Definitions ....................................100

+   14.1  Accept .....................................................100

+   14.2  Accept-Charset .............................................102

+   14.3  Accept-Encoding ............................................102

+   14.4  Accept-Language ............................................104

+   14.5  Accept-Ranges ..............................................105

+   14.6  Age ........................................................106

+   14.7  Allow ......................................................106

+   14.8  Authorization ..............................................107

+   14.9  Cache-Control ..............................................108

+   14.9.1   What is Cacheable .......................................109

+   14.9.2   What May be Stored by Caches ............................110

+   14.9.3   Modifications of the Basic Expiration Mechanism .........111

+   14.9.4   Cache Revalidation and Reload Controls ..................113

+   14.9.5   No-Transform Directive ..................................115

+   14.9.6   Cache Control Extensions ................................116

+   14.10   Connection ...............................................117

+   14.11   Content-Encoding .........................................118

+   14.12   Content-Language .........................................118

+   14.13   Content-Length ...........................................119

+   14.14   Content-Location .........................................120

+   14.15   Content-MD5 ..............................................121

+   14.16   Content-Range ............................................122

+   14.17   Content-Type .............................................124

+   14.18   Date .....................................................124

+   14.18.1   Clockless Origin Server Operation ......................125

+   14.19   ETag .....................................................126

+   14.20   Expect ...................................................126

+   14.21   Expires ..................................................127

+   14.22   From .....................................................128

+

+   14.23   Host .....................................................128

+   14.24   If-Match .................................................129

+   14.25   If-Modified-Since ........................................130

+   14.26   If-None-Match ............................................132

+   14.27   If-Range .................................................133

+   14.28   If-Unmodified-Since ......................................134

+   14.29   Last-Modified ............................................134

+   14.30   Location .................................................135

+   14.31   Max-Forwards .............................................136

+   14.32   Pragma ...................................................136

+   14.33   Proxy-Authenticate .......................................137

+   14.34   Proxy-Authorization ......................................137

+   14.35   Range ....................................................138

+   14.35.1    Byte Ranges ...........................................138

+   14.35.2    Range Retrieval Requests ..............................139

+   14.36   Referer ..................................................140

+   14.37   Retry-After ..............................................141

+   14.38   Server ...................................................141

+   14.39   TE .......................................................142

+   14.40   Trailer ..................................................143

+   14.41  Transfer-Encoding..........................................143

+   14.42   Upgrade ..................................................144

+   14.43   User-Agent ...............................................145

+   14.44   Vary .....................................................145

+   14.45   Via ......................................................146

+   14.46   Warning ..................................................148

+   14.47   WWW-Authenticate .........................................150

+   15 Security Considerations .......................................150

+   15.1      Personal Information....................................151

+   15.1.1   Abuse of Server Log Information .........................151

+   15.1.2   Transfer of Sensitive Information .......................151

+   15.1.3   Encoding Sensitive Information in URI's .................152

+   15.1.4   Privacy Issues Connected to Accept Headers ..............152

+   15.2  Attacks Based On File and Path Names .......................153

+   15.3  DNS Spoofing ...............................................154

+   15.4  Location Headers and Spoofing ..............................154

+   15.5  Content-Disposition Issues .................................154

+   15.6  Authentication Credentials and Idle Clients ................155

+   15.7  Proxies and Caching ........................................155

+   15.7.1    Denial of Service Attacks on Proxies....................156

+   16   Acknowledgments .............................................156

+   17   References ..................................................158

+   18   Authors' Addresses ..........................................162

+   19   Appendices ..................................................164

+   19.1  Internet Media Type message/http and application/http ......164

+   19.2  Internet Media Type multipart/byteranges ...................165

+   19.3  Tolerant Applications ......................................166

+   19.4  Differences Between HTTP Entities and <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a> Entities ....167

+

+   19.4.1   MIME-Version ............................................167

+   19.4.2   Conversion to Canonical Form ............................167

+   19.4.3   Conversion of Date Formats ..............................168

+   19.4.4   Introduction of Content-Encoding ........................168

+   19.4.5   No Content-Transfer-Encoding ............................168

+   19.4.6   Introduction of Transfer-Encoding .......................169

+   19.4.7   MHTML and Line Length Limitations .......................169

+   19.5  Additional Features ........................................169

+   19.5.1   Content-Disposition .....................................170

+   19.6  Compatibility with Previous Versions .......................170

+   19.6.1   Changes from HTTP/1.0 ...................................171

+   19.6.2   Compatibility with HTTP/1.0 Persistent Connections ......172

+   19.6.3   Changes from <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> ...................................172

+   20   Index .......................................................175

+   21   Full Copyright Statement ....................................176

+

+1 Introduction

+

+1.1 Purpose

+

+   The Hypertext Transfer Protocol (HTTP) is an application-level

+   protocol for distributed, collaborative, hypermedia information

+   systems. HTTP has been in use by the World-Wide Web global

+   information initiative since 1990. The first version of HTTP,

+   referred to as HTTP/0.9, was a simple protocol for raw data transfer

+   across the Internet. HTTP/1.0, as defined by <a href="http://firefly.troll.no/rfcs/rfc1945.html">RFC 1945</a> [6], improved

+   the protocol by allowing messages to be in the format of MIME-like

+   messages, containing metainformation about the data transferred and

+   modifiers on the request/response semantics. However, HTTP/1.0 does

+   not sufficiently take into consideration the effects of hierarchical

+   proxies, caching, the need for persistent connections, or virtual

+   hosts. In addition, the proliferation of incompletely-implemented

+   applications calling themselves "HTTP/1.0" has necessitated a

+   protocol version change in order for two communicating applications

+   to determine each other's true capabilities.

+

+   This specification defines the protocol referred to as "HTTP/1.1".

+   This protocol includes more stringent requirements than HTTP/1.0 in

+   order to ensure reliable implementation of its features.

+

+   Practical information systems require more functionality than simple

+   retrieval, including search, front-end update, and annotation. HTTP

+   allows an open-ended set of methods and headers that indicate the

+   purpose of a request [47]. It builds on the discipline of reference

+   provided by the Uniform Resource Identifier (URI) [3], as a location

+   (URL) [4] or name (URN) [20], for indicating the resource to which a

+

+   method is to be applied. Messages are passed in a format similar to

+   that used by Internet mail [9] as defined by the Multipurpose

+   Internet Mail Extensions (MIME) [7].

+

+   HTTP is also used as a generic protocol for communication between

+   user agents and proxies/gateways to other Internet systems, including

+   those supported by the SMTP [16], NNTP [13], FTP [18], Gopher [2],

+   and WAIS [10] protocols. In this way, HTTP allows basic hypermedia

+   access to resources available from diverse applications.

+

+1.2 Requirements

+

+   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",

+   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this

+   document are to be interpreted as described in <a href="http://firefly.troll.no/rfcs/rfc2119.html">RFC 2119</a> [34].

+

+   An implementation is not compliant if it fails to satisfy one or more

+   of the MUST or REQUIRED level requirements for the protocols it

+   implements. An implementation that satisfies all the MUST or REQUIRED

+   level and all the SHOULD level requirements for its protocols is said

+   to be "unconditionally compliant"; one that satisfies all the MUST

+   level requirements but not all the SHOULD level requirements for its

+   protocols is said to be "conditionally compliant."

+

+1.3 Terminology

+

+   This specification uses a number of terms to refer to the roles

+   played by participants in, and objects of, the HTTP communication.

+

+   connection

+      A transport layer virtual circuit established between two programs

+      for the purpose of communication.

+

+   message

+      The basic unit of HTTP communication, consisting of a structured

+      sequence of octets matching the syntax defined in section 4 and

+      transmitted via the connection.

+

+   request

+      An HTTP request message, as defined in section 5.

+

+   response

+      An HTTP response message, as defined in section 6.

+

+   resource

+      A network data object or service that can be identified by a URI,

+      as defined in section 3.2. Resources may be available in multiple

+      representations (e.g. multiple languages, data formats, size, and

+      resolutions) or vary in other ways.

+

+   entity

+      The information transferred as the payload of a request or

+      response. An entity consists of metainformation in the form of

+      entity-header fields and content in the form of an entity-body, as

+      described in section 7.

+

+   representation

+      An entity included with a response that is subject to content

+      negotiation, as described in section 12. There may exist multiple

+      representations associated with a particular response status.

+

+   content negotiation

+      The mechanism for selecting the appropriate representation when

+      servicing a request, as described in section 12. The

+      representation of entities in any response can be negotiated

+      (including error responses).

+

+   variant

+      A resource may have one, or more than one, representation(s)

+      associated with it at any given instant. Each of these

+      representations is termed a `varriant'.  Use of the term `variant'

+      does not necessarily imply that the resource is subject to content

+      negotiation.

+

+   client

+      A program that establishes connections for the purpose of sending

+      requests.

+

+   user agent

+      The client which initiates a request. These are often browsers,

+      editors, spiders (web-traversing robots), or other end user tools.

+

+   server

+      An application program that accepts connections in order to

+      service requests by sending back responses. Any given program may

+      be capable of being both a client and a server; our use of these

+      terms refers only to the role being performed by the program for a

+      particular connection, rather than to the program's capabilities

+      in general. Likewise, any server may act as an origin server,

+      proxy, gateway, or tunnel, switching behavior based on the nature

+      of each request.

+

+   origin server

+      The server on which a given resource resides or is to be created.

+

+   proxy

+      An intermediary program which acts as both a server and a client

+      for the purpose of making requests on behalf of other clients.

+      Requests are serviced internally or by passing them on, with

+      possible translation, to other servers. A proxy MUST implement

+      both the client and server requirements of this specification. A

+      "transparent proxy" is a proxy that does not modify the request or

+      response beyond what is required for proxy authentication and

+      identification. A "non-transparent proxy" is a proxy that modifies

+      the request or response in order to provide some added service to

+      the user agent, such as group annotation services, media type

+      transformation, protocol reduction, or anonymity filtering. Except

+      where either transparent or non-transparent behavior is explicitly

+      stated, the HTTP proxy requirements apply to both types of

+      proxies.

+

+   gateway

+      A server which acts as an intermediary for some other server.

+      Unlike a proxy, a gateway receives requests as if it were the

+      origin server for the requested resource; the requesting client

+      may not be aware that it is communicating with a gateway.

+

+   tunnel

+      An intermediary program which is acting as a blind relay between

+      two connections. Once active, a tunnel is not considered a party

+      to the HTTP communication, though the tunnel may have been

+      initiated by an HTTP request. The tunnel ceases to exist when both

+      ends of the relayed connections are closed.

+

+   cache

+      A program's local store of response messages and the subsystem

+      that controls its message storage, retrieval, and deletion. A

+      cache stores cacheable responses in order to reduce the response

+      time and network bandwidth consumption on future, equivalent

+      requests. Any client or server may include a cache, though a cache

+      cannot be used by a server that is acting as a tunnel.

+

+   cacheable

+      A response is cacheable if a cache is allowed to store a copy of

+      the response message for use in answering subsequent requests. The

+      rules for determining the cacheability of HTTP responses are

+      defined in section 13. Even if a resource is cacheable, there may

+      be additional constraints on whether a cache can use the cached

+      copy for a particular request.

+

+   first-hand

+      A response is first-hand if it comes directly and without

+      unnecessary delay from the origin server, perhaps via one or more

+      proxies. A response is also first-hand if its validity has just

+      been checked directly with the origin server.

+

+   explicit expiration time

+      The time at which the origin server intends that an entity should

+      no longer be returned by a cache without further validation.

+

+   heuristic expiration time

+      An expiration time assigned by a cache when no explicit expiration

+      time is available.

+

+   age

+      The age of a response is the time since it was sent by, or

+      successfully validated with, the origin server.

+

+   freshness lifetime

+      The length of time between the generation of a response and its

+      expiration time.

+

+   fresh

+      A response is fresh if its age has not yet exceeded its freshness

+      lifetime.

+

+   stale

+      A response is stale if its age has passed its freshness lifetime.

+

+   semantically transparent

+      A cache behaves in a "semantically transparent" manner, with

+      respect to a particular response, when its use affects neither the

+      requesting client nor the origin server, except to improve

+      performance. When a cache is semantically transparent, the client

+      receives exactly the same response (except for hop-by-hop headers)

+      that it would have received had its request been handled directly

+      by the origin server.

+

+   validator

+      A protocol element (e.g., an entity tag or a Last-Modified time)

+      that is used to find out whether a cache entry is an equivalent

+      copy of an entity.

+

+   upstream/downstream

+      Upstream and downstream describe the flow of a message: all

+      messages flow from upstream to downstream.

+

+   inbound/outbound

+      Inbound and outbound refer to the request and response paths for

+      messages: "inbound" means "traveling toward the origin server",

+      and "outbound" means "traveling toward the user agent"

+

+1.4 Overall Operation

+

+   The HTTP protocol is a request/response protocol. A client sends a

+   request to the server in the form of a request method, URI, and

+   protocol version, followed by a MIME-like message containing request

+   modifiers, client information, and possible body content over a

+   connection with a server. The server responds with a status line,

+   including the message's protocol version and a success or error code,

+   followed by a MIME-like message containing server information, entity

+   metainformation, and possible entity-body content. The relationship

+   between HTTP and MIME is described in appendix 19.4.

+

+   Most HTTP communication is initiated by a user agent and consists of

+   a request to be applied to a resource on some origin server. In the

+   simplest case, this may be accomplished via a single connection (v)

+   between the user agent (UA) and the origin server (O).

+

+          request chain ------------------------&gt;

+       UA -------------------v------------------- O

+          &lt;----------------------- response chain

+

+   A more complicated situation occurs when one or more intermediaries

+   are present in the request/response chain. There are three common

+   forms of intermediary: proxy, gateway, and tunnel. A proxy is a

+   forwarding agent, receiving requests for a URI in its absolute form,

+   rewriting all or part of the message, and forwarding the reformatted

+   request toward the server identified by the URI. A gateway is a

+   receiving agent, acting as a layer above some other server(s) and, if

+   necessary, translating the requests to the underlying server's

+   protocol. A tunnel acts as a relay point between two connections

+   without changing the messages; tunnels are used when the

+   communication needs to pass through an intermediary (such as a

+   firewall) even when the intermediary cannot understand the contents

+   of the messages.

+

+          request chain --------------------------------------&gt;

+       UA -----v----- A -----v----- B -----v----- C -----v----- O

+          &lt;------------------------------------- response chain

+

+   The figure above shows three intermediaries (A, B, and C) between the

+   user agent and origin server. A request or response message that

+   travels the whole chain will pass through four separate connections.

+   This distinction is important because some HTTP communication options

+

+   may apply only to the connection with the nearest, non-tunnel

+   neighbor, only to the end-points of the chain, or to all connections

+   along the chain. Although the diagram is linear, each participant may

+   be engaged in multiple, simultaneous communications. For example, B

+   may be receiving requests from many clients other than A, and/or

+   forwarding requests to servers other than C, at the same time that it

+   is handling A's request.

+

+   Any party to the communication which is not acting as a tunnel may

+   employ an internal cache for handling requests. The effect of a cache

+   is that the request/response chain is shortened if one of the

+   participants along the chain has a cached response applicable to that

+   request. The following illustrates the resulting chain if B has a

+   cached copy of an earlier response from O (via C) for a request which

+   has not been cached by UA or A.

+

+          request chain ----------&gt;

+       UA -----v----- A -----v----- B - - - - - - C - - - - - - O

+          &lt;--------- response chain

+

+   Not all responses are usefully cacheable, and some requests may

+   contain modifiers which place special requirements on cache behavior.

+   HTTP requirements for cache behavior and cacheable responses are

+   defined in section 13.

+

+   In fact, there are a wide variety of architectures and configurations

+   of caches and proxies currently being experimented with or deployed

+   across the World Wide Web. These systems include national hierarchies

+   of proxy caches to save transoceanic bandwidth, systems that

+   broadcast or multicast cache entries, organizations that distribute

+   subsets of cached data via CD-ROM, and so on. HTTP systems are used

+   in corporate intranets over high-bandwidth links, and for access via

+   PDAs with low-power radio links and intermittent connectivity. The

+   goal of HTTP/1.1 is to support the wide diversity of configurations

+   already deployed while introducing protocol constructs that meet the

+   needs of those who build web applications that require high

+   reliability and, failing that, at least reliable indications of

+   failure.

+

+   HTTP communication usually takes place over TCP/IP connections. The

+   default port is TCP 80 [19], but other ports can be used. This does

+   not preclude HTTP from being implemented on top of any other protocol

+   on the Internet, or on other networks. HTTP only presumes a reliable

+   transport; any protocol that provides such guarantees can be used;

+   the mapping of the HTTP/1.1 request and response structures onto the

+   transport data units of the protocol in question is outside the scope

+   of this specification.

+

+   In HTTP/1.0, most implementations used a new connection for each

+   request/response exchange. In HTTP/1.1, a connection may be used for

+   one or more request/response exchanges, although connections may be

+   closed for a variety of reasons (see section 8.1).

+

+2 Notational Conventions and Generic Grammar

+

+2.1 Augmented BNF

+

+   All of the mechanisms specified in this document are described in

+   both prose and an augmented Backus-Naur Form (BNF) similar to that

+   used by <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9]. Implementors will need to be familiar with the

+   notation in order to understand this specification. The augmented BNF

+   includes the following constructs:

+

+   name = definition

+      The name of a rule is simply the name itself (without any

+      enclosing "&lt;" and "&gt;") and is separated from its definition by the

+      equal "=" character. White space is only significant in that

+      indentation of continuation lines is used to indicate a rule

+      definition that spans more than one line. Certain basic rules are

+      in uppercase, such as SP, LWS, HT, CRLF, DIGIT, ALPHA, etc. Angle

+      brackets are used within definitions whenever their presence will

+      facilitate discerning the use of rule names.

+

+   "literal"

+      Quotation marks surround literal text. Unless stated otherwise,

+      the text is case-insensitive.

+

+   rule1 | rule2

+      Elements separated by a bar ("|") are alternatives, e.g., "yes |

+      no" will accept yes or no.

+

+   (rule1 rule2)

+      Elements enclosed in parentheses are treated as a single element.

+      Thus, "(elem (foo | bar) elem)" allows the token sequences "elem

+      foo elem" and "elem bar elem".

+

+   *rule

+      The character "*" preceding an element indicates repetition. The

+      full form is "&lt;n&gt;*&lt;m&gt;element" indicating at least &lt;n&gt; and at most

+      &lt;m&gt; occurrences of element. Default values are 0 and infinity so

+      that "*(element)" allows any number, including zero; "1*element"

+      requires at least one; and "1*2element" allows one or two.

+

+   [rule]

+      Square brackets enclose optional elements; "[foo bar]" is

+      equivalent to "*1(foo bar)".

+

+   N rule

+      Specific repetition: "&lt;n&gt;(element)" is equivalent to

+      "&lt;n&gt;*&lt;n&gt;(element)"; that is, exactly &lt;n&gt; occurrences of (element).

+      Thus 2DIGIT is a 2-digit number, and 3ALPHA is a string of three

+      alphabetic characters.

+

+   #rule

+      A construct "#" is defined, similar to "*", for defining lists of

+      elements. The full form is "&lt;n&gt;#&lt;m&gt;element" indicating at least

+      &lt;n&gt; and at most &lt;m&gt; elements, each separated by one or more commas

+      (",") and OPTIONAL linear white space (LWS). This makes the usual

+      form of lists very easy; a rule such as

+         ( *LWS element *( *LWS "," *LWS element ))

+      can be shown as

+         1#element

+      Wherever this construct is used, null elements are allowed, but do

+      not contribute to the count of elements present. That is,

+      "(element), , (element) " is permitted, but counts as only two

+      elements. Therefore, where at least one element is required, at

+      least one non-null element MUST be present. Default values are 0

+      and infinity so that "#element" allows any number, including zero;

+      "1#element" requires at least one; and "1#2element" allows one or

+      two.

+

+   ; comment

+      A semi-colon, set off some distance to the right of rule text,

+      starts a comment that continues to the end of line. This is a

+      simple way of including useful notes in parallel with the

+      specifications.

+

+   implied *LWS

+      The grammar described by this specification is word-based. Except

+      where noted otherwise, linear white space (LWS) can be included

+      between any two adjacent words (token or quoted-string), and

+      between adjacent words and separators, without changing the

+      interpretation of a field. At least one delimiter (LWS and/or

+

+      separators) MUST exist between any two tokens (for the definition

+      of "token" below), since they would otherwise be interpreted as a

+      single token.

+

+2.2 Basic Rules

+

+   The following rules are used throughout this specification to

+   describe basic parsing constructs. The US-ASCII coded character set

+   is defined by ANSI X3.4-1986 [21].

+

+       OCTET          = &lt;any 8-bit sequence of data&gt;

+       CHAR           = &lt;any US-ASCII character (octets 0 - 127)&gt;

+       UPALPHA        = &lt;any US-ASCII uppercase letter "A".."Z"&gt;

+       LOALPHA        = &lt;any US-ASCII lowercase letter "a".."z"&gt;

+       ALPHA          = UPALPHA | LOALPHA

+       DIGIT          = &lt;any US-ASCII digit "0".."9"&gt;

+       CTL            = &lt;any US-ASCII control character

+                        (octets 0 - 31) and DEL (127)&gt;

+       CR             = &lt;US-ASCII CR, carriage return (13)&gt;

+       LF             = &lt;US-ASCII LF, linefeed (10)&gt;

+       SP             = &lt;US-ASCII SP, space (32)&gt;

+       HT             = &lt;US-ASCII HT, horizontal-tab (9)&gt;

+       &lt;"&gt;            = &lt;US-ASCII double-quote mark (34)&gt;

+

+   HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all

+   protocol elements except the entity-body (see appendix 19.3 for

+   tolerant applications). The end-of-line marker within an entity-body

+   is defined by its associated media type, as described in section 3.7.

+

+       CRLF           = CR LF

+

+   HTTP/1.1 header field values can be folded onto multiple lines if the

+   continuation line begins with a space or horizontal tab. All linear

+   white space, including folding, has the same semantics as SP. A

+   recipient MAY replace any linear white space with a single SP before

+   interpreting the field value or forwarding the message downstream.

+

+       LWS            = [CRLF] 1*( SP | HT )

+

+   The TEXT rule is only used for descriptive field contents and values

+   that are not intended to be interpreted by the message parser. Words

+   of *TEXT MAY contain characters from character sets other than ISO-

+   8859-1 [22] only when encoded according to the rules of <a href="http://firefly.troll.no/rfcs/rfc2047.html">RFC 2047</a>

+   [14].

+

+       TEXT           = &lt;any OCTET except CTLs,

+                        but including LWS&gt;

+

+   A CRLF is allowed in the definition of TEXT only as part of a header

+   field continuation. It is expected that the folding LWS will be

+   replaced with a single SP before interpretation of the TEXT value.

+

+   Hexadecimal numeric characters are used in several protocol elements.

+

+       HEX            = "A" | "B" | "C" | "D" | "E" | "F"

+                      | "a" | "b" | "c" | "d" | "e" | "f" | DIGIT

+

+   Many HTTP/1.1 header field values consist of words separated by LWS

+   or special characters. These special characters MUST be in a quoted

+   string to be used within a parameter value (as defined in section

+   3.6).

+

+       token          = 1*&lt;any CHAR except CTLs or separators&gt;

+       separators     = "(" | ")" | "&lt;" | "&gt;" | "@"

+                      | "," | ";" | ":" | "\" | &lt;"&gt;

+                      | "/" | "[" | "]" | "?" | "="

+                      | "{" | "}" | SP | HT

+

+   Comments can be included in some HTTP header fields by surrounding

+   the comment text with parentheses. Comments are only allowed in

+   fields containing "comment" as part of their field value definition.

+   In all other fields, parentheses are considered part of the field

+   value.

+

+       comment        = "(" *( ctext | quoted-pair | comment ) ")"

+       ctext          = &lt;any TEXT excluding "(" and ")"&gt;

+

+   A string of text is parsed as a single word if it is quoted using

+   double-quote marks.

+

+       quoted-string  = ( &lt;"&gt; *(qdtext | quoted-pair ) &lt;"&gt; )

+       qdtext         = &lt;any TEXT except &lt;"&gt;&gt;

+

+   The backslash character ("\") MAY be used as a single-character

+   quoting mechanism only within quoted-string and comment constructs.

+

+       quoted-pair    = "\" CHAR

+

+3 Protocol Parameters

+

+3.1 HTTP Version

+

+   HTTP uses a "&lt;major&gt;.&lt;minor&gt;" numbering scheme to indicate versions

+   of the protocol. The protocol versioning policy is intended to allow

+   the sender to indicate the format of a message and its capacity for

+   understanding further HTTP communication, rather than the features

+   obtained via that communication. No change is made to the version

+   number for the addition of message components which do not affect

+   communication behavior or which only add to extensible field values.

+   The &lt;minor&gt; number is incremented when the changes made to the

+   protocol add features which do not change the general message parsing

+   algorithm, but which may add to the message semantics and imply

+   additional capabilities of the sender. The &lt;major&gt; number is

+   incremented when the format of a message within the protocol is

+   changed. See <a href="http://firefly.troll.no/rfcs/rfc2145.html">RFC 2145</a> [36] for a fuller explanation.

+

+   The version of an HTTP message is indicated by an HTTP-Version field

+   in the first line of the message.

+

+       HTTP-Version   = "HTTP" "/" 1*DIGIT "." 1*DIGIT

+

+   Note that the major and minor numbers MUST be treated as separate

+   integers and that each MAY be incremented higher than a single digit.

+   Thus, HTTP/2.4 is a lower version than HTTP/2.13, which in turn is

+   lower than HTTP/12.3. Leading zeros MUST be ignored by recipients and

+   MUST NOT be sent.

+

+   An application that sends a request or response message that includes

+   HTTP-Version of "HTTP/1.1" MUST be at least conditionally compliant

+   with this specification. Applications that are at least conditionally

+   compliant with this specification SHOULD use an HTTP-Version of

+   "HTTP/1.1" in their messages, and MUST do so for any message that is

+   not compatible with HTTP/1.0. For more details on when to send

+   specific HTTP-Version values, see <a href="http://firefly.troll.no/rfcs/rfc2145.html">RFC 2145</a> [36].

+

+   The HTTP version of an application is the highest HTTP version for

+   which the application is at least conditionally compliant.

+

+   Proxy and gateway applications need to be careful when forwarding

+   messages in protocol versions different from that of the application.

+   Since the protocol version indicates the protocol capability of the

+   sender, a proxy/gateway MUST NOT send a message with a version

+   indicator which is greater than its actual version. If a higher

+   version request is received, the proxy/gateway MUST either downgrade

+   the request version, or respond with an error, or switch to tunnel

+   behavior.

+

+   Due to interoperability problems with HTTP/1.0 proxies discovered

+   since the publication of <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>[33], caching proxies MUST, gateways

+   MAY, and tunnels MUST NOT upgrade the request to the highest version

+   they support. The proxy/gateway's response to that request MUST be in

+   the same major version as the request.

+

+      Note: Converting between versions of HTTP may involve modification

+      of header fields required or forbidden by the versions involved.

+

+3.2 Uniform Resource Identifiers

+

+   URIs have been known by many names: WWW addresses, Universal Document

+   Identifiers, Universal Resource Identifiers [3], and finally the

+   combination of Uniform Resource Locators (URL) [4] and Names (URN)

+   [20]. As far as HTTP is concerned, Uniform Resource Identifiers are

+   simply formatted strings which identify--via name, location, or any

+   other characteristic--a resource.

+

+3.2.1 General Syntax

+

+   URIs in HTTP can be represented in absolute form or relative to some

+   known base URI [11], depending upon the context of their use. The two

+   forms are differentiated by the fact that absolute URIs always begin

+   with a scheme name followed by a colon. For definitive information on

+   URL syntax and semantics, see "Uniform Resource Identifiers (URI):

+   Generic Syntax and Semantics," <a href="http://firefly.troll.no/rfcs/rfc2396.html">RFC 2396</a> [42] (which replaces RFCs

+   1738 [4] and <a href="http://firefly.troll.no/rfcs/rfc1808.html">RFC 1808</a> [11]). This specification adopts the

+   definitions of "URI-reference", "absoluteURI", "relativeURI", "port",

+   "host","abs_path", "rel_path", and "authority" from that

+   specification.

+

+   The HTTP protocol does not place any a priori limit on the length of

+   a URI. Servers MUST be able to handle the URI of any resource they

+   serve, and SHOULD be able to handle URIs of unbounded length if they

+   provide GET-based forms that could generate such URIs. A server

+   SHOULD return 414 (Request-URI Too Long) status if a URI is longer

+   than the server can handle (see section 10.4.15).

+

+      Note: Servers ought to be cautious about depending on URI lengths

+      above 255 bytes, because some older client or proxy

+      implementations might not properly support these lengths.

+

+3.2.2 http URL

+

+   The "http" scheme is used to locate network resources via the HTTP

+   protocol. This section defines the scheme-specific syntax and

+   semantics for http URLs.

+

+   http_URL = "http:" "//" host [ ":" port ] [ abs_path [ "?" query ]]

+

+   If the port is empty or not given, port 80 is assumed. The semantics

+   are that the identified resource is located at the server listening

+   for TCP connections on that port of that host, and the Request-URI

+   for the resource is abs_path (section 5.1.2). The use of IP addresses

+   in URLs SHOULD be avoided whenever possible (see <a href="http://firefly.troll.no/rfcs/rfc1900.html">RFC 1900</a> [24]). If

+   the abs_path is not present in the URL, it MUST be given as "/" when

+   used as a Request-URI for a resource (section 5.1.2). If a proxy

+   receives a host name which is not a fully qualified domain name, it

+   MAY add its domain to the host name it received. If a proxy receives

+   a fully qualified domain name, the proxy MUST NOT change the host

+   name.

+

+3.2.3 URI Comparison

+

+   When comparing two URIs to decide if they match or not, a client

+   SHOULD use a case-sensitive octet-by-octet comparison of the entire

+   URIs, with these exceptions:

+

+      - A port that is empty or not given is equivalent to the default

+        port for that URI-reference;

+

+        - Comparisons of host names MUST be case-insensitive;

+

+        - Comparisons of scheme names MUST be case-insensitive;

+

+        - An empty abs_path is equivalent to an abs_path of "/".

+

+   Characters other than those in the "reserved" and "unsafe" sets (see

+   <a href="http://firefly.troll.no/rfcs/rfc2396.html">RFC 2396</a> [42]) are equivalent to their ""%" HEX HEX" encoding.

+

+   For example, the following three URIs are equivalent:

+

+      <a href="http://abc.com/%7Esmith/home.html">http://abc.com:80/~smith/home.html</a>

+      <a href="http://abc.com/%7Esmith/home.html">http://ABC.com/%7Esmith/home.html</a>

+      <a href="http://firefly.troll.no/%3CA%20HREF=" ftp:="" abc.com="" %7esmith="" home.html="">/ABC.com:/%7esmith/home.html</a>"&gt;http:/<a href="ftp://abc.com/%7esmith/home.html%3C/A%3E">/ABC.com:/%7esmith/home.html</a>

+

+3.3 Date/Time Formats

+

+3.3.1 Full Date

+

+   HTTP applications have historically allowed three different formats

+   for the representation of date/time stamps:

+

+      Sun, 06 Nov 1994 08:49:37 GMT  ; <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a>, updated by <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a>

+      Sunday, 06-Nov-94 08:49:37 GMT ; <a href="http://firefly.troll.no/rfcs/rfc850.html">RFC 850</a>, obsoleted by <a href="http://firefly.troll.no/rfcs/rfc1036.html">RFC 1036</a>

+      Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format

+

+   The first format is preferred as an Internet standard and represents

+   a fixed-length subset of that defined by <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a> [8] (an update to

+   <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9]). The second format is in common use, but is based on the

+   obsolete <a href="http://firefly.troll.no/rfcs/rfc850.html">RFC 850</a> [12] date format and lacks a four-digit year.

+   HTTP/1.1 clients and servers that parse the date value MUST accept

+   all three formats (for compatibility with HTTP/1.0), though they MUST

+   only generate the <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a> format for representing HTTP-date values

+   in header fields. See section 19.3 for further information.

+

+      Note: Recipients of date values are encouraged to be robust in

+      accepting date values that may have been sent by non-HTTP

+      applications, as is sometimes the case when retrieving or posting

+      messages via proxies/gateways to SMTP or NNTP.

+

+   All HTTP date/time stamps MUST be represented in Greenwich Mean Time

+   (GMT), without exception. For the purposes of HTTP, GMT is exactly

+   equal to UTC (Coordinated Universal Time). This is indicated in the

+   first two formats by the inclusion of "GMT" as the three-letter

+   abbreviation for time zone, and MUST be assumed when reading the

+   asctime format. HTTP-date is case sensitive and MUST NOT include

+   additional LWS beyond that specifically included as SP in the

+   grammar.

+

+       HTTP-date    = <a href="http://firefly.troll.no/rfcs/rfc1123.html">rfc1123</a>-date | <a href="http://firefly.troll.no/rfcs/rfc850.html">rfc850</a>-date | asctime-date

+       <a href="http://firefly.troll.no/rfcs/rfc1123.html">rfc1123</a>-date = wkday "," SP date1 SP time SP "GMT"

+       <a href="http://firefly.troll.no/rfcs/rfc850.html">rfc850</a>-date  = weekday "," SP date2 SP time SP "GMT"

+       asctime-date = wkday SP date3 SP time SP 4DIGIT

+       date1        = 2DIGIT SP month SP 4DIGIT

+                      ; day month year (e.g., 02 Jun 1982)

+       date2        = 2DIGIT "-" month "-" 2DIGIT

+                      ; day-month-year (e.g., 02-Jun-82)

+       date3        = month SP ( 2DIGIT | ( SP 1DIGIT ))

+                      ; month day (e.g., Jun  2)

+       time         = 2DIGIT ":" 2DIGIT ":" 2DIGIT

+                      ; 00:00:00 - 23:59:59

+       wkday        = "Mon" | "Tue" | "Wed"

+                    | "Thu" | "Fri" | "Sat" | "Sun"

+       weekday      = "Monday" | "Tuesday" | "Wednesday"

+                    | "Thursday" | "Friday" | "Saturday" | "Sunday"

+       month        = "Jan" | "Feb" | "Mar" | "Apr"

+                    | "May" | "Jun" | "Jul" | "Aug"

+                    | "Sep" | "Oct" | "Nov" | "Dec"

+

+      Note: HTTP requirements for the date/time stamp format apply only

+      to their usage within the protocol stream. Clients and servers are

+      not required to use these formats for user presentation, request

+      logging, etc.

+

+3.3.2 Delta Seconds

+

+   Some HTTP header fields allow a time value to be specified as an

+   integer number of seconds, represented in decimal, after the time

+   that the message was received.

+

+       delta-seconds  = 1*DIGIT

+

+3.4 Character Sets

+

+   HTTP uses the same definition of the term "character set" as that

+   described for MIME:

+

+   The term "character set" is used in this document to refer to a

+   method used with one or more tables to convert a sequence of octets

+   into a sequence of characters. Note that unconditional conversion in

+   the other direction is not required, in that not all characters may

+   be available in a given character set and a character set may provide

+   more than one sequence of octets to represent a particular character.

+   This definition is intended to allow various kinds of character

+   encoding, from simple single-table mappings such as US-ASCII to

+   complex table switching methods such as those that use ISO-2022's

+   techniques. However, the definition associated with a MIME character

+   set name MUST fully specify the mapping to be performed from octets

+   to characters. In particular, use of external profiling information

+   to determine the exact mapping is not permitted.

+

+      Note: This use of the term "character set" is more commonly

+      referred to as a "character encoding." However, since HTTP and

+      MIME share the same registry, it is important that the terminology

+      also be shared.

+

+   HTTP character sets are identified by case-insensitive tokens. The

+   complete set of tokens is defined by the IANA Character Set registry

+   [19].

+

+       charset = token

+

+   Although HTTP allows an arbitrary token to be used as a charset

+   value, any token that has a predefined value within the IANA

+   Character Set registry [19] MUST represent the character set defined

+   by that registry. Applications SHOULD limit their use of character

+   sets to those defined by the IANA registry.

+

+   Implementors should be aware of IETF character set requirements [38]

+   [41].

+

+3.4.1 Missing Charset

+

+   Some HTTP/1.0 software has interpreted a Content-Type header without

+   charset parameter incorrectly to mean "recipient should guess."

+   Senders wishing to defeat this behavior MAY include a charset

+   parameter even when the charset is ISO-8859-1 and SHOULD do so when

+   it is known that it will not confuse the recipient.

+

+   Unfortunately, some older HTTP/1.0 clients did not deal properly with

+   an explicit charset parameter. HTTP/1.1 recipients MUST respect the

+   charset label provided by the sender; and those user agents that have

+   a provision to "guess" a charset MUST use the charset from the

+

+   content-type field if they support that charset, rather than the

+   recipient's preference, when initially displaying a document. See

+   section 3.7.1.

+

+3.5 Content Codings

+

+   Content coding values indicate an encoding transformation that has

+   been or can be applied to an entity. Content codings are primarily

+   used to allow a document to be compressed or otherwise usefully

+   transformed without losing the identity of its underlying media type

+   and without loss of information. Frequently, the entity is stored in

+   coded form, transmitted directly, and only decoded by the recipient.

+

+       content-coding   = token

+

+   All content-coding values are case-insensitive. HTTP/1.1 uses

+   content-coding values in the Accept-Encoding (section 14.3) and

+   Content-Encoding (section 14.11) header fields. Although the value

+   describes the content-coding, what is more important is that it

+   indicates what decoding mechanism will be required to remove the

+   encoding.

+

+   The Internet Assigned Numbers Authority (IANA) acts as a registry for

+   content-coding value tokens. Initially, the registry contains the

+   following tokens:

+

+   gzip An encoding format produced by the file compression program

+        "gzip" (GNU zip) as described in <a href="http://firefly.troll.no/rfcs/rfc1952.html">RFC 1952</a> [25]. This format is a

+        Lempel-Ziv coding (LZ77) with a 32 bit CRC.

+

+   compress

+        The encoding format produced by the common UNIX file compression

+        program "compress". This format is an adaptive Lempel-Ziv-Welch

+        coding (LZW).

+

+        Use of program names for the identification of encoding formats

+        is not desirable and is discouraged for future encodings. Their

+        use here is representative of historical practice, not good

+        design. For compatibility with previous implementations of HTTP,

+        applications SHOULD consider "x-gzip" and "x-compress" to be

+        equivalent to "gzip" and "compress" respectively.

+

+   deflate

+        The "zlib" format defined in <a href="http://firefly.troll.no/rfcs/rfc1950.html">RFC 1950</a> [31] in combination with

+        the "deflate" compression mechanism described in <a href="http://firefly.troll.no/rfcs/rfc1951.html">RFC 1951</a> [29].

+

+   identity

+        The default (identity) encoding; the use of no transformation

+        whatsoever. This content-coding is used only in the Accept-

+        Encoding header, and SHOULD NOT be used in the Content-Encoding

+        header.

+

+   New content-coding value tokens SHOULD be registered; to allow

+   interoperability between clients and servers, specifications of the

+   content coding algorithms needed to implement a new value SHOULD be

+   publicly available and adequate for independent implementation, and

+   conform to the purpose of content coding defined in this section.

+

+3.6 Transfer Codings

+

+   Transfer-coding values are used to indicate an encoding

+   transformation that has been, can be, or may need to be applied to an

+   entity-body in order to ensure "safe transport" through the network.

+   This differs from a content coding in that the transfer-coding is a

+   property of the message, not of the original entity.

+

+       transfer-coding         = "chunked" | transfer-extension

+       transfer-extension      = token *( ";" parameter )

+

+   Parameters are in  the form of attribute/value pairs.

+

+       parameter               = attribute "=" value

+       attribute               = token

+       value                   = token | quoted-string

+

+   All transfer-coding values are case-insensitive. HTTP/1.1 uses

+   transfer-coding values in the TE header field (section 14.39) and in

+   the Transfer-Encoding header field (section 14.41).

+

+   Whenever a transfer-coding is applied to a message-body, the set of

+   transfer-codings MUST include "chunked", unless the message is

+   terminated by closing the connection. When the "chunked" transfer-

+   coding is used, it MUST be the last transfer-coding applied to the

+   message-body. The "chunked" transfer-coding MUST NOT be applied more

+   than once to a message-body. These rules allow the recipient to

+   determine the transfer-length of the message (section 4.4).

+

+   Transfer-codings are analogous to the Content-Transfer-Encoding

+   values of MIME [7], which were designed to enable safe transport of

+   binary data over a 7-bit transport service. However, safe transport

+   has a different focus for an 8bit-clean transfer protocol. In HTTP,

+   the only unsafe characteristic of message-bodies is the difficulty in

+   determining the exact body length (section 7.2.2), or the desire to

+   encrypt data over a shared transport.

+

+   The Internet Assigned Numbers Authority (IANA) acts as a registry for

+   transfer-coding value tokens. Initially, the registry contains the

+   following tokens: "chunked" (section 3.6.1), "identity" (section

+   3.6.2), "gzip" (section 3.5), "compress" (section 3.5), and "deflate"

+   (section 3.5).

+

+   New transfer-coding value tokens SHOULD be registered in the same way

+   as new content-coding value tokens (section 3.5).

+

+   A server which receives an entity-body with a transfer-coding it does

+   not understand SHOULD return 501 (Unimplemented), and close the

+   connection. A server MUST NOT send transfer-codings to an HTTP/1.0

+   client.

+

+3.6.1 Chunked Transfer Coding

+

+   The chunked encoding modifies the body of a message in order to

+   transfer it as a series of chunks, each with its own size indicator,

+   followed by an OPTIONAL trailer containing entity-header fields. This

+   allows dynamically produced content to be transferred along with the

+   information necessary for the recipient to verify that it has

+   received the full message.

+

+       Chunked-Body   = *chunk

+                        last-chunk

+                        trailer

+                        CRLF

+

+       chunk          = chunk-size [ chunk-extension ] CRLF

+                        chunk-data CRLF

+       chunk-size     = 1*HEX

+       last-chunk     = 1*("0") [ chunk-extension ] CRLF

+

+       chunk-extension= *( ";" chunk-ext-name [ "=" chunk-ext-val ] )

+       chunk-ext-name = token

+       chunk-ext-val  = token | quoted-string

+       chunk-data     = chunk-size(OCTET)

+       trailer        = *(entity-header CRLF)

+

+   The chunk-size field is a string of hex digits indicating the size of

+   the chunk. The chunked encoding is ended by any chunk whose size is

+   zero, followed by the trailer, which is terminated by an empty line.

+

+   The trailer allows the sender to include additional HTTP header

+   fields at the end of the message. The Trailer header field can be

+   used to indicate which header fields are included in a trailer (see

+   section 14.40).

+

+   A server using chunked transfer-coding in a response MUST NOT use the

+   trailer for any header fields unless at least one of the following is

+   true:

+

+   a)the request included a TE header field that indicates "trailers" is

+     acceptable in the transfer-coding of the  response, as described in

+     section 14.39; or,

+

+   b)the server is the origin server for the response, the trailer

+     fields consist entirely of optional metadata, and the recipient

+     could use the message (in a manner acceptable to the origin server)

+     without receiving this metadata.  In other words, the origin server

+     is willing to accept the possibility that the trailer fields might

+     be silently discarded along the path to the client.

+

+   This requirement prevents an interoperability failure when the

+   message is being received by an HTTP/1.1 (or later) proxy and

+   forwarded to an HTTP/1.0 recipient. It avoids a situation where

+   compliance with the protocol would have necessitated a possibly

+   infinite buffer on the proxy.

+

+   An example process for decoding a Chunked-Body is presented in

+   appendix 19.4.6.

+

+   All HTTP/1.1 applications MUST be able to receive and decode the

+   "chunked" transfer-coding, and MUST ignore chunk-extension extensions

+   they do not understand.

+

+3.7 Media Types

+

+   HTTP uses Internet Media Types [17] in the Content-Type (section

+   14.17) and Accept (section 14.1) header fields in order to provide

+   open and extensible data typing and type negotiation.

+

+       media-type     = type "/" subtype *( ";" parameter )

+       type           = token

+       subtype        = token

+

+   Parameters MAY follow the type/subtype in the form of attribute/value

+   pairs (as defined in section 3.6).

+

+   The type, subtype, and parameter attribute names are case-

+   insensitive. Parameter values might or might not be case-sensitive,

+   depending on the semantics of the parameter name. Linear white space

+   (LWS) MUST NOT be used between the type and subtype, nor between an

+   attribute and its value. The presence or absence of a parameter might

+   be significant to the processing of a media-type, depending on its

+   definition within the media type registry.

+

+   Note that some older HTTP applications do not recognize media type

+   parameters. When sending data to older HTTP applications,

+   implementations SHOULD only use media type parameters when they are

+   required by that type/subtype definition.

+

+   Media-type values are registered with the Internet Assigned Number

+   Authority (IANA [19]). The media type registration process is

+   outlined in <a href="http://firefly.troll.no/rfcs/rfc1590.html">RFC 1590</a> [17]. Use of non-registered media types is

+   discouraged.

+

+3.7.1 Canonicalization and Text Defaults

+

+   Internet media types are registered with a canonical form. An

+   entity-body transferred via HTTP messages MUST be represented in the

+   appropriate canonical form prior to its transmission except for

+   "text" types, as defined in the next paragraph.

+

+   When in canonical form, media subtypes of the "text" type use CRLF as

+   the text line break. HTTP relaxes this requirement and allows the

+   transport of text media with plain CR or LF alone representing a line

+   break when it is done consistently for an entire entity-body. HTTP

+   applications MUST accept CRLF, bare CR, and bare LF as being

+   representative of a line break in text media received via HTTP. In

+   addition, if the text is represented in a character set that does not

+   use octets 13 and 10 for CR and LF respectively, as is the case for

+   some multi-byte character sets, HTTP allows the use of whatever octet

+   sequences are defined by that character set to represent the

+   equivalent of CR and LF for line breaks. This flexibility regarding

+   line breaks applies only to text media in the entity-body; a bare CR

+   or LF MUST NOT be substituted for CRLF within any of the HTTP control

+   structures (such as header fields and multipart boundaries).

+

+   If an entity-body is encoded with a content-coding, the underlying

+   data MUST be in a form defined above prior to being encoded.

+

+   The "charset" parameter is used with some media types to define the

+   character set (section 3.4) of the data. When no explicit charset

+   parameter is provided by the sender, media subtypes of the "text"

+   type are defined to have a default charset value of "ISO-8859-1" when

+   received via HTTP. Data in character sets other than "ISO-8859-1" or

+   its subsets MUST be labeled with an appropriate charset value. See

+   section 3.4.1 for compatibility problems.

+

+3.7.2 Multipart Types

+

+   MIME provides for a number of "multipart" types -- encapsulations of

+   one or more entities within a single message-body. All multipart

+   types share a common syntax, as defined in section 5.1.1 of <a href="http://firefly.troll.no/rfcs/rfc2046.html">RFC 2046</a>

+

+   [40], and MUST include a boundary parameter as part of the media type

+   value. The message body is itself a protocol element and MUST

+   therefore use only CRLF to represent line breaks between body-parts.

+   Unlike in <a href="http://firefly.troll.no/rfcs/rfc2046.html">RFC 2046</a>, the epilogue of any multipart message MUST be

+   empty; HTTP applications MUST NOT transmit the epilogue (even if the

+   original multipart contains an epilogue). These restrictions exist in

+   order to preserve the self-delimiting nature of a multipart message-

+   body, wherein the "end" of the message-body is indicated by the

+   ending multipart boundary.

+

+   In general, HTTP treats a multipart message-body no differently than

+   any other media type: strictly as payload. The one exception is the

+   "multipart/byteranges" type (appendix 19.2) when it appears in a 206

+   (Partial Content) response, which will be interpreted by some HTTP

+   caching mechanisms as described in sections 13.5.4 and 14.16. In all

+   other cases, an HTTP user agent SHOULD follow the same or similar

+   behavior as a MIME user agent would upon receipt of a multipart type.

+   The MIME header fields within each body-part of a multipart message-

+   body do not have any significance to HTTP beyond that defined by

+   their MIME semantics.

+

+   In general, an HTTP user agent SHOULD follow the same or similar

+   behavior as a MIME user agent would upon receipt of a multipart type.

+   If an application receives an unrecognized multipart subtype, the

+   application MUST treat it as being equivalent to "multipart/mixed".

+

+      Note: The "multipart/form-data" type has been specifically defined

+      for carrying form data suitable for processing via the POST

+      request method, as described in <a href="http://firefly.troll.no/rfcs/rfc1867.html">RFC 1867</a> [15].

+

+3.8 Product Tokens

+

+   Product tokens are used to allow communicating applications to

+   identify themselves by software name and version. Most fields using

+   product tokens also allow sub-products which form a significant part

+   of the application to be listed, separated by white space. By

+   convention, the products are listed in order of their significance

+   for identifying the application.

+

+       product         = token ["/" product-version]

+       product-version = token

+

+   Examples:

+

+       User-Agent: CERN-LineMode/2.15 libwww/2.17b3

+       Server: Apache/0.8.4

+

+   Product tokens SHOULD be short and to the point. They MUST NOT be

+   used for advertising or other non-essential information. Although any

+   token character MAY appear in a product-version, this token SHOULD

+   only be used for a version identifier (i.e., successive versions of

+   the same product SHOULD only differ in the product-version portion of

+   the product value).

+

+3.9 Quality Values

+

+   HTTP content negotiation (section 12) uses short "floating point"

+   numbers to indicate the relative importance ("weight") of various

+   negotiable parameters.  A weight is normalized to a real number in

+   the range 0 through 1, where 0 is the minimum and 1 the maximum

+   value. If a parameter has a quality value of 0, then content with

+   this parameter is `not acceptable' for the client. HTTP/1.1

+   applications MUST NOT generate more than three digits after the

+   decimal point. User configuration of these values SHOULD also be

+   limited in this fashion.

+

+       qvalue         = ( "0" [ "." 0*3DIGIT ] )

+                      | ( "1" [ "." 0*3("0") ] )

+

+   "Quality values" is a misnomer, since these values merely represent

+   relative degradation in desired quality.

+

+3.10 Language Tags

+

+   A language tag identifies a natural language spoken, written, or

+   otherwise conveyed by human beings for communication of information

+   to other human beings. Computer languages are explicitly excluded.

+   HTTP uses language tags within the Accept-Language and Content-

+   Language fields.

+

+   The syntax and registry of HTTP language tags is the same as that

+   defined by <a href="http://firefly.troll.no/rfcs/rfc1766.html">RFC 1766</a> [1]. In summary, a language tag is composed of 1

+   or more parts: A primary language tag and a possibly empty series of

+   subtags:

+

+        language-tag  = primary-tag *( "-" subtag )

+        primary-tag   = 1*8ALPHA

+        subtag        = 1*8ALPHA

+

+   White space is not allowed within the tag and all tags are case-

+   insensitive. The name space of language tags is administered by the

+   IANA. Example tags include:

+

+       en, en-US, en-cockney, i-cherokee, x-pig-latin

+

+   where any two-letter primary-tag is an ISO-639 language abbreviation

+   and any two-letter initial subtag is an ISO-3166 country code. (The

+   last three tags above are not registered tags; all but the last are

+   examples of tags which could be registered in future.)

+

+3.11 Entity Tags

+

+   Entity tags are used for comparing two or more entities from the same

+   requested resource. HTTP/1.1 uses entity tags in the ETag (section

+   14.19), If-Match (section 14.24), If-None-Match (section 14.26), and

+   If-Range (section 14.27) header fields. The definition of how they

+   are used and compared as cache validators is in section 13.3.3. An

+   entity tag consists of an opaque quoted string, possibly prefixed by

+   a weakness indicator.

+

+      entity-tag = [ weak ] opaque-tag

+      weak       = "W/"

+      opaque-tag = quoted-string

+

+   A "strong entity tag" MAY be shared by two entities of a resource

+   only if they are equivalent by octet equality.

+

+   A "weak entity tag," indicated by the "W/" prefix, MAY be shared by

+   two entities of a resource only if the entities are equivalent and

+   could be substituted for each other with no significant change in

+   semantics. A weak entity tag can only be used for weak comparison.

+

+   An entity tag MUST be unique across all versions of all entities

+   associated with a particular resource. A given entity tag value MAY

+   be used for entities obtained by requests on different URIs. The use

+   of the same entity tag value in conjunction with entities obtained by

+   requests on different URIs does not imply the equivalence of those

+   entities.

+

+3.12 Range Units

+

+   HTTP/1.1 allows a client to request that only part (a range of) the

+   response entity be included within the response. HTTP/1.1 uses range

+   units in the Range (section 14.35) and Content-Range (section 14.16)

+   header fields. An entity can be broken down into subranges according

+   to various structural units.

+

+      range-unit       = bytes-unit | other-range-unit

+      bytes-unit       = "bytes"

+      other-range-unit = token

+

+   The only range unit defined by HTTP/1.1 is "bytes". HTTP/1.1

+   implementations MAY ignore ranges specified using other units.

+

+   HTTP/1.1 has been designed to allow implementations of applications

+   that do not depend on knowledge of ranges.

+

+4 HTTP Message

+

+4.1 Message Types

+

+   HTTP messages consist of requests from client to server and responses

+   from server to client.

+

+       HTTP-message   = Request | Response     ; HTTP/1.1 messages

+

+   Request (section 5) and Response (section 6) messages use the generic

+   message format of <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9] for transferring entities (the payload

+   of the message). Both types of message consist of a start-line, zero

+   or more header fields (also known as "headers"), an empty line (i.e.,

+   a line with nothing preceding the CRLF) indicating the end of the

+   header fields, and possibly a message-body.

+

+        generic-message = start-line

+                          *(message-header CRLF)

+                          CRLF

+                          [ message-body ]

+        start-line      = Request-Line | Status-Line

+

+   In the interest of robustness, servers SHOULD ignore any empty

+   line(s) received where a Request-Line is expected. In other words, if

+   the server is reading the protocol stream at the beginning of a

+   message and receives a CRLF first, it should ignore the CRLF.

+

+   Certain buggy HTTP/1.0 client implementations generate extra CRLF's

+   after a POST request. To restate what is explicitly forbidden by the

+   BNF, an HTTP/1.1 client MUST NOT preface or follow a request with an

+   extra CRLF.

+

+4.2 Message Headers

+

+   HTTP header fields, which include general-header (section 4.5),

+   request-header (section 5.3), response-header (section 6.2), and

+   entity-header (section 7.1) fields, follow the same generic format as

+   that given in Section 3.1 of <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9]. Each header field consists

+   of a name followed by a colon (":") and the field value. Field names

+   are case-insensitive. The field value MAY be preceded by any amount

+   of LWS, though a single SP is preferred. Header fields can be

+   extended over multiple lines by preceding each extra line with at

+   least one SP or HT. Applications ought to follow "common form", where

+   one is known or indicated, when generating HTTP constructs, since

+   there might exist some implementations that fail to accept anything

+

+   beyond the common forms.

+

+       message-header = field-name ":" [ field-value ]

+       field-name     = token

+       field-value    = *( field-content | LWS )

+       field-content  = &lt;the OCTETs making up the field-value

+                        and consisting of either *TEXT or combinations

+                        of token, separators, and quoted-string&gt;

+

+   The field-content does not include any leading or trailing LWS:

+   linear white space occurring before the first non-whitespace

+   character of the field-value or after the last non-whitespace

+   character of the field-value. Such leading or trailing LWS MAY be

+   removed without changing the semantics of the field value. Any LWS

+   that occurs between field-content MAY be replaced with a single SP

+   before interpreting the field value or forwarding the message

+   downstream.

+

+   The order in which header fields with differing field names are

+   received is not significant. However, it is "good practice" to send

+   general-header fields first, followed by request-header or response-

+   header fields, and ending with the entity-header fields.

+

+   Multiple message-header fields with the same field-name MAY be

+   present in a message if and only if the entire field-value for that

+   header field is defined as a comma-separated list [i.e., #(values)].

+   It MUST be possible to combine the multiple header fields into one

+   "field-name: field-value" pair, without changing the semantics of the

+   message, by appending each subsequent field-value to the first, each

+   separated by a comma. The order in which header fields with the same

+   field-name are received is therefore significant to the

+   interpretation of the combined field value, and thus a proxy MUST NOT

+   change the order of these field values when a message is forwarded.

+

+4.3 Message Body

+

+   The message-body (if any) of an HTTP message is used to carry the

+   entity-body associated with the request or response. The message-body

+   differs from the entity-body only when a transfer-coding has been

+   applied, as indicated by the Transfer-Encoding header field (section

+   14.41).

+

+       message-body = entity-body

+                    | &lt;entity-body encoded as per Transfer-Encoding&gt;

+

+   Transfer-Encoding MUST be used to indicate any transfer-codings

+   applied by an application to ensure safe and proper transfer of the

+   message. Transfer-Encoding is a property of the message, not of the

+

+   entity, and thus MAY be added or removed by any application along the

+   request/response chain. (However, section 3.6 places restrictions on

+   when certain transfer-codings may be used.)

+

+   The rules for when a message-body is allowed in a message differ for

+   requests and responses.

+

+   The presence of a message-body in a request is signaled by the

+   inclusion of a Content-Length or Transfer-Encoding header field in

+   the request's message-headers. A message-body MUST NOT be included in

+   a request if the specification of the request method (section 5.1.1)

+   does not allow sending an entity-body in requests. A server SHOULD

+   read and forward a message-body on any request; if the request method

+   does not include defined semantics for an entity-body, then the

+   message-body SHOULD be ignored when handling the request.

+

+   For response messages, whether or not a message-body is included with

+   a message is dependent on both the request method and the response

+   status code (section 6.1.1). All responses to the HEAD request method

+   MUST NOT include a message-body, even though the presence of entity-

+   header fields might lead one to believe they do. All 1xx

+   (informational), 204 (no content), and 304 (not modified) responses

+   MUST NOT include a message-body. All other responses do include a

+   message-body, although it MAY be of zero length.

+

+4.4 Message Length

+

+   The transfer-length of a message is the length of the message-body as

+   it appears in the message; that is, after any transfer-codings have

+   been applied. When a message-body is included with a message, the

+   transfer-length of that body is determined by one of the following

+   (in order of precedence):

+

+   1.Any response message which "MUST NOT" include a message-body (such

+     as the 1xx, 204, and 304 responses and any response to a HEAD

+     request) is always terminated by the first empty line after the

+     header fields, regardless of the entity-header fields present in

+     the message.

+

+   2.If a Transfer-Encoding header field (section 14.41) is present and

+     has any value other than "identity", then the transfer-length is

+     defined by use of the "chunked" transfer-coding (section 3.6),

+     unless the message is terminated by closing the connection.

+

+   3.If a Content-Length header field (section 14.13) is present, its

+     decimal value in OCTETs represents both the entity-length and the

+     transfer-length. The Content-Length header field MUST NOT be sent

+     if these two lengths are different (i.e., if a Transfer-Encoding

+

+     header field is present). If a message is received with both a

+     Transfer-Encoding header field and a Content-Length header field,

+     the latter MUST be ignored.

+

+   4.If the message uses the media type "multipart/byteranges", and the

+     ransfer-length is not otherwise specified, then this self-

+     elimiting media type defines the transfer-length. This media type

+     UST NOT be used unless the sender knows that the recipient can arse

+     it; the presence in a request of a Range header with ultiple byte-

+     range specifiers from a 1.1 client implies that the lient can parse

+     multipart/byteranges responses.

+

+       A range header might be forwarded by a 1.0 proxy that does not

+       understand multipart/byteranges; in this case the server MUST

+       delimit the message using methods defined in items 1,3 or 5 of

+       this section.

+

+   5.By the server closing the connection. (Closing the connection

+     cannot be used to indicate the end of a request body, since that

+     would leave no possibility for the server to send back a response.)

+

+   For compatibility with HTTP/1.0 applications, HTTP/1.1 requests

+   containing a message-body MUST include a valid Content-Length header

+   field unless the server is known to be HTTP/1.1 compliant. If a

+   request contains a message-body and a Content-Length is not given,

+   the server SHOULD respond with 400 (bad request) if it cannot

+   determine the length of the message, or with 411 (length required) if

+   it wishes to insist on receiving a valid Content-Length.

+

+   All HTTP/1.1 applications that receive entities MUST accept the

+   "chunked" transfer-coding (section 3.6), thus allowing this mechanism

+   to be used for messages when the message length cannot be determined

+   in advance.

+

+   Messages MUST NOT include both a Content-Length header field and a

+   non-identity transfer-coding. If the message does include a non-

+   identity transfer-coding, the Content-Length MUST be ignored.

+

+   When a Content-Length is given in a message where a message-body is

+   allowed, its field value MUST exactly match the number of OCTETs in

+   the message-body. HTTP/1.1 user agents MUST notify the user when an

+   invalid length is received and detected.

+

+4.5 General Header Fields

+

+   There are a few header fields which have general applicability for

+   both request and response messages, but which do not apply to the

+   entity being transferred. These header fields apply only to the

+

+   message being transmitted.

+

+       general-header = Cache-Control            ; Section 14.9

+                      | Connection               ; Section 14.10

+                      | Date                     ; Section 14.18

+                      | Pragma                   ; Section 14.32

+                      | Trailer                  ; Section 14.40

+                      | Transfer-Encoding        ; Section 14.41

+                      | Upgrade                  ; Section 14.42

+                      | Via                      ; Section 14.45

+                      | Warning                  ; Section 14.46

+

+   General-header field names can be extended reliably only in

+   combination with a change in the protocol version. However, new or

+   experimental header fields may be given the semantics of general

+   header fields if all parties in the communication recognize them to

+   be general-header fields. Unrecognized header fields are treated as

+   entity-header fields.

+

+5 Request

+

+   A request message from a client to a server includes, within the

+   first line of that message, the method to be applied to the resource,

+   the identifier of the resource, and the protocol version in use.

+

+        Request       = Request-Line              ; Section 5.1

+                        *(( general-header        ; Section 4.5

+                         | request-header         ; Section 5.3

+                         | entity-header ) CRLF)  ; Section 7.1

+                        CRLF

+                        [ message-body ]          ; Section 4.3

+

+5.1 Request-Line

+

+   The Request-Line begins with a method token, followed by the

+   Request-URI and the protocol version, and ending with CRLF. The

+   elements are separated by SP characters. No CR or LF is allowed

+   except in the final CRLF sequence.

+

+        Request-Line   = Method SP Request-URI SP HTTP-Version CRLF

+

+5.1.1 Method

+

+   The Method  token indicates the method to be performed on the

+   resource identified by the Request-URI. The method is case-sensitive.

+

+       Method         = "OPTIONS"                ; Section 9.2

+                      | "GET"                    ; Section 9.3

+                      | "HEAD"                   ; Section 9.4

+                      | "POST"                   ; Section 9.5

+                      | "PUT"                    ; Section 9.6

+                      | "DELETE"                 ; Section 9.7

+                      | "TRACE"                  ; Section 9.8

+                      | "CONNECT"                ; Section 9.9

+                      | extension-method

+       extension-method = token

+

+   The list of methods allowed by a resource can be specified in an

+   Allow header field (section 14.7). The return code of the response

+   always notifies the client whether a method is currently allowed on a

+   resource, since the set of allowed methods can change dynamically. An

+   origin server SHOULD return the status code 405 (Method Not Allowed)

+   if the method is known by the origin server but not allowed for the

+   requested resource, and 501 (Not Implemented) if the method is

+   unrecognized or not implemented by the origin server. The methods GET

+   and HEAD MUST be supported by all general-purpose servers. All other

+   methods are OPTIONAL; however, if the above methods are implemented,

+   they MUST be implemented with the same semantics as those specified

+   in section 9.

+

+5.1.2 Request-URI

+

+   The Request-URI is a Uniform Resource Identifier (section 3.2) and

+   identifies the resource upon which to apply the request.

+

+       Request-URI    = "*" | absoluteURI | abs_path | authority

+

+   The four options for Request-URI are dependent on the nature of the

+   request. The asterisk "*" means that the request does not apply to a

+   particular resource, but to the server itself, and is only allowed

+   when the method used does not necessarily apply to a resource. One

+   example would be

+

+       OPTIONS * HTTP/1.1

+

+   The absoluteURI form is REQUIRED when the request is being made to a

+   proxy. The proxy is requested to forward the request or service it

+   from a valid cache, and return the response. Note that the proxy MAY

+   forward the request on to another proxy or directly to the server

+

+   specified by the absoluteURI. In order to avoid request loops, a

+   proxy MUST be able to recognize all of its server names, including

+   any aliases, local variations, and the numeric IP address. An example

+   Request-Line would be:

+

+       GET <a href="http://www.w3.org/pub/WWW/TheProject.html">http://www.w3.org/pub/WWW/TheProject.html</a> HTTP/1.1

+

+   To allow for transition to absoluteURIs in all requests in future

+   versions of HTTP, all HTTP/1.1 servers MUST accept the absoluteURI

+   form in requests, even though HTTP/1.1 clients will only generate

+   them in requests to proxies.

+

+   The authority form is only used by the CONNECT method (section 9.9).

+

+   The most common form of Request-URI is that used to identify a

+   resource on an origin server or gateway. In this case the absolute

+   path of the URI MUST be transmitted (see section 3.2.1, abs_path) as

+   the Request-URI, and the network location of the URI (authority) MUST

+   be transmitted in a Host header field. For example, a client wishing

+   to retrieve the resource above directly from the origin server would

+   create a TCP connection to port 80 of the host "www.w3.org" and send

+   the lines:

+

+       GET /pub/WWW/TheProject.html HTTP/1.1

+       Host: www.w3.org

+

+   followed by the remainder of the Request. Note that the absolute path

+   cannot be empty; if none is present in the original URI, it MUST be

+   given as "/" (the server root).

+

+   The Request-URI is transmitted in the format specified in section

+   3.2.1. If the Request-URI is encoded using the "% HEX HEX" encoding

+   [42], the origin server MUST decode the Request-URI in order to

+   properly interpret the request. Servers SHOULD respond to invalid

+   Request-URIs with an appropriate status code.

+

+   A transparent proxy MUST NOT rewrite the "abs_path" part of the

+   received Request-URI when forwarding it to the next inbound server,

+   except as noted above to replace a null abs_path with "/".

+

+      Note: The "no rewrite" rule prevents the proxy from changing the

+      meaning of the request when the origin server is improperly using

+      a non-reserved URI character for a reserved purpose.  Implementors

+      should be aware that some pre-HTTP/1.1 proxies have been known to

+      rewrite the Request-URI.

+

+5.2 The Resource Identified by a Request

+

+   The exact resource identified by an Internet request is determined by

+   examining both the Request-URI and the Host header field.

+

+   An origin server that does not allow resources to differ by the

+   requested host MAY ignore the Host header field value when

+   determining the resource identified by an HTTP/1.1 request. (But see

+   section 19.6.1.1 for other requirements on Host support in HTTP/1.1.)

+

+   An origin server that does differentiate resources based on the host

+   requested (sometimes referred to as virtual hosts or vanity host

+   names) MUST use the following rules for determining the requested

+   resource on an HTTP/1.1 request:

+

+   1. If Request-URI is an absoluteURI, the host is part of the

+     Request-URI. Any Host header field value in the request MUST be

+     ignored.

+

+   2. If the Request-URI is not an absoluteURI, and the request includes

+     a Host header field, the host is determined by the Host header

+     field value.

+

+   3. If the host as determined by rule 1 or 2 is not a valid host on

+     the server, the response MUST be a 400 (Bad Request) error message.

+

+   Recipients of an HTTP/1.0 request that lacks a Host header field MAY

+   attempt to use heuristics (e.g., examination of the URI path for

+   something unique to a particular host) in order to determine what

+   exact resource is being requested.

+

+5.3 Request Header Fields

+

+   The request-header fields allow the client to pass additional

+   information about the request, and about the client itself, to the

+   server. These fields act as request modifiers, with semantics

+   equivalent to the parameters on a programming language method

+   invocation.

+

+       request-header = Accept                   ; Section 14.1

+                      | Accept-Charset           ; Section 14.2

+                      | Accept-Encoding          ; Section 14.3

+                      | Accept-Language          ; Section 14.4

+                      | Authorization            ; Section 14.8

+                      | Expect                   ; Section 14.20

+                      | From                     ; Section 14.22

+                      | Host                     ; Section 14.23

+                      | If-Match                 ; Section 14.24

+

+                      | If-Modified-Since        ; Section 14.25

+                      | If-None-Match            ; Section 14.26

+                      | If-Range                 ; Section 14.27

+                      | If-Unmodified-Since      ; Section 14.28

+                      | Max-Forwards             ; Section 14.31

+                      | Proxy-Authorization      ; Section 14.34

+                      | Range                    ; Section 14.35

+                      | Referer                  ; Section 14.36

+                      | TE                       ; Section 14.39

+                      | User-Agent               ; Section 14.43

+

+   Request-header field names can be extended reliably only in

+   combination with a change in the protocol version. However, new or

+   experimental header fields MAY be given the semantics of request-

+   header fields if all parties in the communication recognize them to

+   be request-header fields. Unrecognized header fields are treated as

+   entity-header fields.

+

+6 Response

+

+   After receiving and interpreting a request message, a server responds

+   with an HTTP response message.

+

+       Response      = Status-Line               ; Section 6.1

+                       *(( general-header        ; Section 4.5

+                        | response-header        ; Section 6.2

+                        | entity-header ) CRLF)  ; Section 7.1

+                       CRLF

+                       [ message-body ]          ; Section 7.2

+

+6.1 Status-Line

+

+   The first line of a Response message is the Status-Line, consisting

+   of the protocol version followed by a numeric status code and its

+   associated textual phrase, with each element separated by SP

+   characters. No CR or LF is allowed except in the final CRLF sequence.

+

+       Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF

+

+6.1.1 Status Code and Reason Phrase

+

+   The Status-Code element is a 3-digit integer result code of the

+   attempt to understand and satisfy the request. These codes are fully

+   defined in section 10. The Reason-Phrase is intended to give a short

+   textual description of the Status-Code. The Status-Code is intended

+   for use by automata and the Reason-Phrase is intended for the human

+   user. The client is not required to examine or display the Reason-

+   Phrase.

+

+   The first digit of the Status-Code defines the class of response. The

+   last two digits do not have any categorization role. There are 5

+   values for the first digit:

+

+      - 1xx: Informational - Request received, continuing process

+

+      - 2xx: Success - The action was successfully received,

+        understood, and accepted

+

+      - 3xx: Redirection - Further action must be taken in order to

+        complete the request

+

+      - 4xx: Client Error - The request contains bad syntax or cannot

+        be fulfilled

+

+      - 5xx: Server Error - The server failed to fulfill an apparently

+        valid request

+

+   The individual values of the numeric status codes defined for

+   HTTP/1.1, and an example set of corresponding Reason-Phrase's, are

+   presented below. The reason phrases listed here are only

+   recommendations -- they MAY be replaced by local equivalents without

+   affecting the protocol.

+

+      Status-Code    =

+            "100"  ; Section 10.1.1: Continue

+          | "101"  ; Section 10.1.2: Switching Protocols

+          | "200"  ; Section 10.2.1: OK

+          | "201"  ; Section 10.2.2: Created

+          | "202"  ; Section 10.2.3: Accepted

+          | "203"  ; Section 10.2.4: Non-Authoritative Information

+          | "204"  ; Section 10.2.5: No Content

+          | "205"  ; Section 10.2.6: Reset Content

+          | "206"  ; Section 10.2.7: Partial Content

+          | "300"  ; Section 10.3.1: Multiple Choices

+          | "301"  ; Section 10.3.2: Moved Permanently

+          | "302"  ; Section 10.3.3: Found

+          | "303"  ; Section 10.3.4: See Other

+          | "304"  ; Section 10.3.5: Not Modified

+          | "305"  ; Section 10.3.6: Use Proxy

+          | "307"  ; Section 10.3.8: Temporary Redirect

+          | "400"  ; Section 10.4.1: Bad Request

+          | "401"  ; Section 10.4.2: Unauthorized

+          | "402"  ; Section 10.4.3: Payment Required

+          | "403"  ; Section 10.4.4: Forbidden

+          | "404"  ; Section 10.4.5: Not Found

+          | "405"  ; Section 10.4.6: Method Not Allowed

+          | "406"  ; Section 10.4.7: Not Acceptable

+

+          | "407"  ; Section 10.4.8: Proxy Authentication Required

+          | "408"  ; Section 10.4.9: Request Time-out

+          | "409"  ; Section 10.4.10: Conflict

+          | "410"  ; Section 10.4.11: Gone

+          | "411"  ; Section 10.4.12: Length Required

+          | "412"  ; Section 10.4.13: Precondition Failed

+          | "413"  ; Section 10.4.14: Request Entity Too Large

+          | "414"  ; Section 10.4.15: Request-URI Too Large

+          | "415"  ; Section 10.4.16: Unsupported Media Type

+          | "416"  ; Section 10.4.17: Requested range not satisfiable

+          | "417"  ; Section 10.4.18: Expectation Failed

+          | "500"  ; Section 10.5.1: Internal Server Error

+          | "501"  ; Section 10.5.2: Not Implemented

+          | "502"  ; Section 10.5.3: Bad Gateway

+          | "503"  ; Section 10.5.4: Service Unavailable

+          | "504"  ; Section 10.5.5: Gateway Time-out

+          | "505"  ; Section 10.5.6: HTTP Version not supported

+          | extension-code

+

+      extension-code = 3DIGIT

+      Reason-Phrase  = *&lt;TEXT, excluding CR, LF&gt;

+

+   HTTP status codes are extensible. HTTP applications are not required

+   to understand the meaning of all registered status codes, though such

+   understanding is obviously desirable. However, applications MUST

+   understand the class of any status code, as indicated by the first

+   digit, and treat any unrecognized response as being equivalent to the

+   x00 status code of that class, with the exception that an

+   unrecognized response MUST NOT be cached. For example, if an

+   unrecognized status code of 431 is received by the client, it can

+   safely assume that there was something wrong with its request and

+   treat the response as if it had received a 400 status code. In such

+   cases, user agents SHOULD present to the user the entity returned

+   with the response, since that entity is likely to include human-

+   readable information which will explain the unusual status.

+

+6.2 Response Header Fields

+

+   The response-header fields allow the server to pass additional

+   information about the response which cannot be placed in the Status-

+   Line. These header fields give information about the server and about

+   further access to the resource identified by the Request-URI.

+

+       response-header = Accept-Ranges           ; Section 14.5

+                       | Age                     ; Section 14.6

+                       | ETag                    ; Section 14.19

+                       | Location                ; Section 14.30

+                       | Proxy-Authenticate      ; Section 14.33

+

+                       | Retry-After             ; Section 14.37

+                       | Server                  ; Section 14.38

+                       | Vary                    ; Section 14.44

+                       | WWW-Authenticate        ; Section 14.47

+

+   Response-header field names can be extended reliably only in

+   combination with a change in the protocol version. However, new or

+   experimental header fields MAY be given the semantics of response-

+   header fields if all parties in the communication recognize them to

+   be response-header fields. Unrecognized header fields are treated as

+   entity-header fields.

+

+7 Entity

+

+   Request and Response messages MAY transfer an entity if not otherwise

+   restricted by the request method or response status code. An entity

+   consists of entity-header fields and an entity-body, although some

+   responses will only include the entity-headers.

+

+   In this section, both sender and recipient refer to either the client

+   or the server, depending on who sends and who receives the entity.

+

+7.1 Entity Header Fields

+

+   Entity-header fields define metainformation about the entity-body or,

+   if no body is present, about the resource identified by the request.

+   Some of this metainformation is OPTIONAL; some might be REQUIRED by

+   portions of this specification.

+

+       entity-header  = Allow                    ; Section 14.7

+                      | Content-Encoding         ; Section 14.11

+                      | Content-Language         ; Section 14.12

+                      | Content-Length           ; Section 14.13

+                      | Content-Location         ; Section 14.14

+                      | Content-MD5              ; Section 14.15

+                      | Content-Range            ; Section 14.16

+                      | Content-Type             ; Section 14.17

+                      | Expires                  ; Section 14.21

+                      | Last-Modified            ; Section 14.29

+                      | extension-header

+

+       extension-header = message-header

+

+   The extension-header mechanism allows additional entity-header fields

+   to be defined without changing the protocol, but these fields cannot

+   be assumed to be recognizable by the recipient. Unrecognized header

+   fields SHOULD be ignored by the recipient and MUST be forwarded by

+   transparent proxies.

+

+7.2 Entity Body

+

+   The entity-body (if any) sent with an HTTP request or response is in

+   a format and encoding defined by the entity-header fields.

+

+       entity-body    = *OCTET

+

+   An entity-body is only present in a message when a message-body is

+   present, as described in section 4.3. The entity-body is obtained

+   from the message-body by decoding any Transfer-Encoding that might

+   have been applied to ensure safe and proper transfer of the message.

+

+7.2.1 Type

+

+   When an entity-body is included with a message, the data type of that

+   body is determined via the header fields Content-Type and Content-

+   Encoding. These define a two-layer, ordered encoding model:

+

+       entity-body := Content-Encoding( Content-Type( data ) )

+

+   Content-Type specifies the media type of the underlying data.

+   Content-Encoding may be used to indicate any additional content

+   codings applied to the data, usually for the purpose of data

+   compression, that are a property of the requested resource. There is

+   no default encoding.

+

+   Any HTTP/1.1 message containing an entity-body SHOULD include a

+   Content-Type header field defining the media type of that body. If

+   and only if the media type is not given by a Content-Type field, the

+   recipient MAY attempt to guess the media type via inspection of its

+   content and/or the name extension(s) of the URI used to identify the

+   resource. If the media type remains unknown, the recipient SHOULD

+   treat it as type "application/octet-stream".

+

+7.2.2 Entity Length

+

+   The entity-length of a message is the length of the message-body

+   before any transfer-codings have been applied. Section 4.4 defines

+   how the transfer-length of a message-body is determined.

+

+8 Connections

+

+8.1 Persistent Connections

+

+8.1.1 Purpose

+

+   Prior to persistent connections, a separate TCP connection was

+   established to fetch each URL, increasing the load on HTTP servers

+   and causing congestion on the Internet. The use of inline images and

+   other associated data often require a client to make multiple

+   requests of the same server in a short amount of time. Analysis of

+   these performance problems and results from a prototype

+   implementation are available [26] [30]. Implementation experience and

+   measurements of actual HTTP/1.1 (<a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>) implementations show good

+   results [39]. Alternatives have also been explored, for example,

+   T/TCP [27].

+

+   Persistent HTTP connections have a number of advantages:

+

+      - By opening and closing fewer TCP connections, CPU time is saved

+        in routers and hosts (clients, servers, proxies, gateways,

+        tunnels, or caches), and memory used for TCP protocol control

+        blocks can be saved in hosts.

+

+      - HTTP requests and responses can be pipelined on a connection.

+        Pipelining allows a client to make multiple requests without

+        waiting for each response, allowing a single TCP connection to

+        be used much more efficiently, with much lower elapsed time.

+

+      - Network congestion is reduced by reducing the number of packets

+        caused by TCP opens, and by allowing TCP sufficient time to

+        determine the congestion state of the network.

+

+      - Latency on subsequent requests is reduced since there is no time

+        spent in TCP's connection opening handshake.

+

+      - HTTP can evolve more gracefully, since errors can be reported

+        without the penalty of closing the TCP connection. Clients using

+        future versions of HTTP might optimistically try a new feature,

+        but if communicating with an older server, retry with old

+        semantics after an error is reported.

+

+   HTTP implementations SHOULD implement persistent connections.

+

+8.1.2 Overall Operation

+

+   A significant difference between HTTP/1.1 and earlier versions of

+   HTTP is that persistent connections are the default behavior of any

+   HTTP connection. That is, unless otherwise indicated, the client

+   SHOULD assume that the server will maintain a persistent connection,

+   even after error responses from the server.

+

+   Persistent connections provide a mechanism by which a client and a

+   server can signal the close of a TCP connection. This signaling takes

+   place using the Connection header field (section 14.10). Once a close

+   has been signaled, the client MUST NOT send any more requests on that

+   connection.

+

+8.1.2.1 Negotiation

+

+   An HTTP/1.1 server MAY assume that a HTTP/1.1 client intends to

+   maintain a persistent connection unless a Connection header including

+   the connection-token "close" was sent in the request. If the server

+   chooses to close the connection immediately after sending the

+   response, it SHOULD send a Connection header including the

+   connection-token close.

+

+   An HTTP/1.1 client MAY expect a connection to remain open, but would

+   decide to keep it open based on whether the response from a server

+   contains a Connection header with the connection-token close. In case

+   the client does not want to maintain a connection for more than that

+   request, it SHOULD send a Connection header including the

+   connection-token close.

+

+   If either the client or the server sends the close token in the

+   Connection header, that request becomes the last one for the

+   connection.

+

+   Clients and servers SHOULD NOT assume that a persistent connection is

+   maintained for HTTP versions less than 1.1 unless it is explicitly

+   signaled. See section 19.6.2 for more information on backward

+   compatibility with HTTP/1.0 clients.

+

+   In order to remain persistent, all messages on the connection MUST

+   have a self-defined message length (i.e., one not defined by closure

+   of the connection), as described in section 4.4.

+

+8.1.2.2 Pipelining

+

+   A client that supports persistent connections MAY "pipeline" its

+   requests (i.e., send multiple requests without waiting for each

+   response). A server MUST send its responses to those requests in the

+   same order that the requests were received.

+

+   Clients which assume persistent connections and pipeline immediately

+   after connection establishment SHOULD be prepared to retry their

+   connection if the first pipelined attempt fails. If a client does

+   such a retry, it MUST NOT pipeline before it knows the connection is

+   persistent. Clients MUST also be prepared to resend their requests if

+   the server closes the connection before sending all of the

+   corresponding responses.

+

+   Clients SHOULD NOT pipeline requests using non-idempotent methods or

+   non-idempotent sequences of methods (see section 9.1.2). Otherwise, a

+   premature termination of the transport connection could lead to

+   indeterminate results. A client wishing to send a non-idempotent

+   request SHOULD wait to send that request until it has received the

+   response status for the previous request.

+

+8.1.3 Proxy Servers

+

+   It is especially important that proxies correctly implement the

+   properties of the Connection header field as specified in section

+   14.10.

+

+   The proxy server MUST signal persistent connections separately with

+   its clients and the origin servers (or other proxy servers) that it

+   connects to. Each persistent connection applies to only one transport

+   link.

+

+   A proxy server MUST NOT establish a HTTP/1.1 persistent connection

+   with an HTTP/1.0 client (but see <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> [33] for information and

+   discussion of the problems with the Keep-Alive header implemented by

+   many HTTP/1.0 clients).

+

+8.1.4 Practical Considerations

+

+   Servers will usually have some time-out value beyond which they will

+   no longer maintain an inactive connection. Proxy servers might make

+   this a higher value since it is likely that the client will be making

+   more connections through the same server. The use of persistent

+   connections places no requirements on the length (or existence) of

+   this time-out for either the client or the server.

+

+   When a client or server wishes to time-out it SHOULD issue a graceful

+   close on the transport connection. Clients and servers SHOULD both

+   constantly watch for the other side of the transport close, and

+   respond to it as appropriate. If a client or server does not detect

+   the other side's close promptly it could cause unnecessary resource

+   drain on the network.

+

+   A client, server, or proxy MAY close the transport connection at any

+   time. For example, a client might have started to send a new request

+   at the same time that the server has decided to close the "idle"

+   connection. From the server's point of view, the connection is being

+   closed while it was idle, but from the client's point of view, a

+   request is in progress.

+

+   This means that clients, servers, and proxies MUST be able to recover

+   from asynchronous close events. Client software SHOULD reopen the

+   transport connection and retransmit the aborted sequence of requests

+   without user interaction so long as the request sequence is

+   idempotent (see section 9.1.2). Non-idempotent methods or sequences

+   MUST NOT be automatically retried, although user agents MAY offer a

+   human operator the choice of retrying the request(s). Confirmation by

+   user-agent software with semantic understanding of the application

+   MAY substitute for user confirmation. The automatic retry SHOULD NOT

+   be repeated if the second sequence of requests fails.

+

+   Servers SHOULD always respond to at least one request per connection,

+   if at all possible. Servers SHOULD NOT close a connection in the

+   middle of transmitting a response, unless a network or client failure

+   is suspected.

+

+   Clients that use persistent connections SHOULD limit the number of

+   simultaneous connections that they maintain to a given server. A

+   single-user client SHOULD NOT maintain more than 2 connections with

+   any server or proxy. A proxy SHOULD use up to 2*N connections to

+   another server or proxy, where N is the number of simultaneously

+   active users. These guidelines are intended to improve HTTP response

+   times and avoid congestion.

+

+8.2 Message Transmission Requirements

+

+8.2.1 Persistent Connections and Flow Control

+

+   HTTP/1.1 servers SHOULD maintain persistent connections and use TCP's

+   flow control mechanisms to resolve temporary overloads, rather than

+   terminating connections with the expectation that clients will retry.

+   The latter technique can exacerbate network congestion.

+

+8.2.2 Monitoring Connections for Error Status Messages

+

+   An HTTP/1.1 (or later) client sending a message-body SHOULD monitor

+   the network connection for an error status while it is transmitting

+   the request. If the client sees an error status, it SHOULD

+   immediately cease transmitting the body. If the body is being sent

+   using a "chunked" encoding (section 3.6), a zero length chunk and

+   empty trailer MAY be used to prematurely mark the end of the message.

+   If the body was preceded by a Content-Length header, the client MUST

+   close the connection.

+

+8.2.3 Use of the 100 (Continue) Status

+

+   The purpose of the 100 (Continue) status (see section 10.1.1) is to

+   allow a client that is sending a request message with a request body

+   to determine if the origin server is willing to accept the request

+   (based on the request headers) before the client sends the request

+   body. In some cases, it might either be inappropriate or highly

+   inefficient for the client to send the body if the server will reject

+   the message without looking at the body.

+

+   Requirements for HTTP/1.1 clients:

+

+      - If a client will wait for a 100 (Continue) response before

+        sending the request body, it MUST send an Expect request-header

+        field (section 14.20) with the "100-continue" expectation.

+

+      - A client MUST NOT send an Expect request-header field (section

+        14.20) with the "100-continue" expectation if it does not intend

+        to send a request body.

+

+   Because of the presence of older implementations, the protocol allows

+   ambiguous situations in which a client may send "Expect: 100-

+   continue" without receiving either a 417 (Expectation Failed) status

+   or a 100 (Continue) status. Therefore, when a client sends this

+   header field to an origin server (possibly via a proxy) from which it

+   has never seen a 100 (Continue) status, the client SHOULD NOT wait

+   for an indefinite period before sending the request body.

+

+   Requirements for HTTP/1.1 origin servers:

+

+      - Upon receiving a request which includes an Expect request-header

+        field with the "100-continue" expectation, an origin server MUST

+        either respond with 100 (Continue) status and continue to read

+        from the input stream, or respond with a final status code. The

+        origin server MUST NOT wait for the request body before sending

+        the 100 (Continue) response. If it responds with a final status

+        code, it MAY close the transport connection or it MAY continue

+

+        to read and discard the rest of the request.  It MUST NOT

+        perform the requested method if it returns a final status code.

+

+      - An origin server SHOULD NOT send a 100 (Continue) response if

+        the request message does not include an Expect request-header

+        field with the "100-continue" expectation, and MUST NOT send a

+        100 (Continue) response if such a request comes from an HTTP/1.0

+        (or earlier) client. There is an exception to this rule: for

+        compatibility with <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>, a server MAY send a 100 (Continue)

+        status in response to an HTTP/1.1 PUT or POST request that does

+        not include an Expect request-header field with the "100-

+        continue" expectation. This exception, the purpose of which is

+        to minimize any client processing delays associated with an

+        undeclared wait for 100 (Continue) status, applies only to

+        HTTP/1.1 requests, and not to requests with any other HTTP-

+        version value.

+

+      - An origin server MAY omit a 100 (Continue) response if it has

+        already received some or all of the request body for the

+        corresponding request.

+

+      - An origin server that sends a 100 (Continue) response MUST

+        ultimately send a final status code, once the request body is

+        received and processed, unless it terminates the transport

+        connection prematurely.

+

+      - If an origin server receives a request that does not include an

+        Expect request-header field with the "100-continue" expectation,

+        the request includes a request body, and the server responds

+        with a final status code before reading the entire request body

+        from the transport connection, then the server SHOULD NOT close

+        the transport connection until it has read the entire request,

+        or until the client closes the connection. Otherwise, the client

+        might not reliably receive the response message. However, this

+        requirement is not be construed as preventing a server from

+        defending itself against denial-of-service attacks, or from

+        badly broken client implementations.

+

+   Requirements for HTTP/1.1 proxies:

+

+      - If a proxy receives a request that includes an Expect request-

+        header field with the "100-continue" expectation, and the proxy

+        either knows that the next-hop server complies with HTTP/1.1 or

+        higher, or does not know the HTTP version of the next-hop

+        server, it MUST forward the request, including the Expect header

+        field.

+

+      - If the proxy knows that the version of the next-hop server is

+        HTTP/1.0 or lower, it MUST NOT forward the request, and it MUST

+        respond with a 417 (Expectation Failed) status.

+

+      - Proxies SHOULD maintain a cache recording the HTTP version

+        numbers received from recently-referenced next-hop servers.

+

+      - A proxy MUST NOT forward a 100 (Continue) response if the

+        request message was received from an HTTP/1.0 (or earlier)

+        client and did not include an Expect request-header field with

+        the "100-continue" expectation. This requirement overrides the

+        general rule for forwarding of 1xx responses (see section 10.1).

+

+8.2.4 Client Behavior if Server Prematurely Closes Connection

+

+   If an HTTP/1.1 client sends a request which includes a request body,

+   but which does not include an Expect request-header field with the

+   "100-continue" expectation, and if the client is not directly

+   connected to an HTTP/1.1 origin server, and if the client sees the

+   connection close before receiving any status from the server, the

+   client SHOULD retry the request.  If the client does retry this

+   request, it MAY use the following "binary exponential backoff"

+   algorithm to be assured of obtaining a reliable response:

+

+      1. Initiate a new connection to the server

+

+      2. Transmit the request-headers

+

+      3. Initialize a variable R to the estimated round-trip time to the

+         server (e.g., based on the time it took to establish the

+         connection), or to a constant value of 5 seconds if the round-

+         trip time is not available.

+

+      4. Compute T = R * (2**N), where N is the number of previous

+         retries of this request.

+

+      5. Wait either for an error response from the server, or for T

+         seconds (whichever comes first)

+

+      6. If no error response is received, after T seconds transmit the

+         body of the request.

+

+      7. If client sees that the connection is closed prematurely,

+         repeat from step 1 until the request is accepted, an error

+         response is received, or the user becomes impatient and

+         terminates the retry process.

+

+   If at any point an error status is received, the client

+

+      - SHOULD NOT continue and

+

+      - SHOULD close the connection if it has not completed sending the

+        request message.

+

+9 Method Definitions

+

+   The set of common methods for HTTP/1.1 is defined below. Although

+   this set can be expanded, additional methods cannot be assumed to

+   share the same semantics for separately extended clients and servers.

+

+   The Host request-header field (section 14.23) MUST accompany all

+   HTTP/1.1 requests.

+

+9.1 Safe and Idempotent Methods

+

+9.1.1 Safe Methods

+

+   Implementors should be aware that the software represents the user in

+   their interactions over the Internet, and should be careful to allow

+   the user to be aware of any actions they might take which may have an

+   unexpected significance to themselves or others.

+

+   In particular, the convention has been established that the GET and

+   HEAD methods SHOULD NOT have the significance of taking an action

+   other than retrieval. These methods ought to be considered "safe".

+   This allows user agents to represent other methods, such as POST, PUT

+   and DELETE, in a special way, so that the user is made aware of the

+   fact that a possibly unsafe action is being requested.

+

+   Naturally, it is not possible to ensure that the server does not

+   generate side-effects as a result of performing a GET request; in

+   fact, some dynamic resources consider that a feature. The important

+   distinction here is that the user did not request the side-effects,

+   so therefore cannot be held accountable for them.

+

+9.1.2 Idempotent Methods

+

+   Methods can also have the property of "idempotence" in that (aside

+   from error or expiration issues) the side-effects of N &gt; 0 identical

+   requests is the same as for a single request. The methods GET, HEAD,

+   PUT and DELETE share this property. Also, the methods OPTIONS and

+   TRACE SHOULD NOT have side effects, and so are inherently idempotent.

+

+   However, it is possible that a sequence of several requests is non-

+   idempotent, even if all of the methods executed in that sequence are

+   idempotent. (A sequence is idempotent if a single execution of the

+   entire sequence always yields a result that is not changed by a

+   reexecution of all, or part, of that sequence.) For example, a

+   sequence is non-idempotent if its result depends on a value that is

+   later modified in the same sequence.

+

+   A sequence that never has side effects is idempotent, by definition

+   (provided that no concurrent operations are being executed on the

+   same set of resources).

+

+9.2 OPTIONS

+

+   The OPTIONS method represents a request for information about the

+   communication options available on the request/response chain

+   identified by the Request-URI. This method allows the client to

+   determine the options and/or requirements associated with a resource,

+   or the capabilities of a server, without implying a resource action

+   or initiating a resource retrieval.

+

+   Responses to this method are not cacheable.

+

+   If the OPTIONS request includes an entity-body (as indicated by the

+   presence of Content-Length or Transfer-Encoding), then the media type

+   MUST be indicated by a Content-Type field. Although this

+   specification does not define any use for such a body, future

+   extensions to HTTP might use the OPTIONS body to make more detailed

+   queries on the server. A server that does not support such an

+   extension MAY discard the request body.

+

+   If the Request-URI is an asterisk ("*"), the OPTIONS request is

+   intended to apply to the server in general rather than to a specific

+   resource. Since a server's communication options typically depend on

+   the resource, the "*" request is only useful as a "ping" or "no-op"

+   type of method; it does nothing beyond allowing the client to test

+   the capabilities of the server. For example, this can be used to test

+   a proxy for HTTP/1.1 compliance (or lack thereof).

+

+   If the Request-URI is not an asterisk, the OPTIONS request applies

+   only to the options that are available when communicating with that

+   resource.

+

+   A 200 response SHOULD include any header fields that indicate

+   optional features implemented by the server and applicable to that

+   resource (e.g., Allow), possibly including extensions not defined by

+   this specification. The response body, if any, SHOULD also include

+   information about the communication options. The format for such a

+

+   body is not defined by this specification, but might be defined by

+   future extensions to HTTP. Content negotiation MAY be used to select

+   the appropriate response format. If no response body is included, the

+   response MUST include a Content-Length field with a field-value of

+   "0".

+

+   The Max-Forwards request-header field MAY be used to target a

+   specific proxy in the request chain. When a proxy receives an OPTIONS

+   request on an absoluteURI for which request forwarding is permitted,

+   the proxy MUST check for a Max-Forwards field. If the Max-Forwards

+   field-value is zero ("0"), the proxy MUST NOT forward the message;

+   instead, the proxy SHOULD respond with its own communication options.

+   If the Max-Forwards field-value is an integer greater than zero, the

+   proxy MUST decrement the field-value when it forwards the request. If

+   no Max-Forwards field is present in the request, then the forwarded

+   request MUST NOT include a Max-Forwards field.

+

+9.3 GET

+

+   The GET method means retrieve whatever information (in the form of an

+   entity) is identified by the Request-URI. If the Request-URI refers

+   to a data-producing process, it is the produced data which shall be

+   returned as the entity in the response and not the source text of the

+   process, unless that text happens to be the output of the process.

+

+   The semantics of the GET method change to a "conditional GET" if the

+   request message includes an If-Modified-Since, If-Unmodified-Since,

+   If-Match, If-None-Match, or If-Range header field. A conditional GET

+   method requests that the entity be transferred only under the

+   circumstances described by the conditional header field(s). The

+   conditional GET method is intended to reduce unnecessary network

+   usage by allowing cached entities to be refreshed without requiring

+   multiple requests or transferring data already held by the client.

+

+   The semantics of the GET method change to a "partial GET" if the

+   request message includes a Range header field. A partial GET requests

+   that only part of the entity be transferred, as described in section

+   14.35. The partial GET method is intended to reduce unnecessary

+   network usage by allowing partially-retrieved entities to be

+   completed without transferring data already held by the client.

+

+   The response to a GET request is cacheable if and only if it meets

+   the requirements for HTTP caching described in section 13.

+

+   See section 15.1.3 for security considerations when used for forms.

+

+9.4 HEAD

+

+   The HEAD method is identical to GET except that the server MUST NOT

+   return a message-body in the response. The metainformation contained

+   in the HTTP headers in response to a HEAD request SHOULD be identical

+   to the information sent in response to a GET request. This method can

+   be used for obtaining metainformation about the entity implied by the

+   request without transferring the entity-body itself. This method is

+   often used for testing hypertext links for validity, accessibility,

+   and recent modification.

+

+   The response to a HEAD request MAY be cacheable in the sense that the

+   information contained in the response MAY be used to update a

+   previously cached entity from that resource. If the new field values

+   indicate that the cached entity differs from the current entity (as

+   would be indicated by a change in Content-Length, Content-MD5, ETag

+   or Last-Modified), then the cache MUST treat the cache entry as

+   stale.

+

+9.5 POST

+

+   The POST method is used to request that the origin server accept the

+   entity enclosed in the request as a new subordinate of the resource

+   identified by the Request-URI in the Request-Line. POST is designed

+   to allow a uniform method to cover the following functions:

+

+      - Annotation of existing resources;

+

+      - Posting a message to a bulletin board, newsgroup, mailing list,

+        or similar group of articles;

+

+      - Providing a block of data, such as the result of submitting a

+        form, to a data-handling process;

+

+      - Extending a database through an append operation.

+

+   The actual function performed by the POST method is determined by the

+   server and is usually dependent on the Request-URI. The posted entity

+   is subordinate to that URI in the same way that a file is subordinate

+   to a directory containing it, a news article is subordinate to a

+   newsgroup to which it is posted, or a record is subordinate to a

+   database.

+

+   The action performed by the POST method might not result in a

+   resource that can be identified by a URI. In this case, either 200

+   (OK) or 204 (No Content) is the appropriate response status,

+   depending on whether or not the response includes an entity that

+   describes the result.

+

+   If a resource has been created on the origin server, the response

+   SHOULD be 201 (Created) and contain an entity which describes the

+   status of the request and refers to the new resource, and a Location

+   header (see section 14.30).

+

+   Responses to this method are not cacheable, unless the response

+   includes appropriate Cache-Control or Expires header fields. However,

+   the 303 (See Other) response can be used to direct the user agent to

+   retrieve a cacheable resource.

+

+   POST requests MUST obey the message transmission requirements set out

+   in section 8.2.

+

+   See section 15.1.3 for security considerations.

+

+9.6 PUT

+

+   The PUT method requests that the enclosed entity be stored under the

+   supplied Request-URI. If the Request-URI refers to an already

+   existing resource, the enclosed entity SHOULD be considered as a

+   modified version of the one residing on the origin server. If the

+   Request-URI does not point to an existing resource, and that URI is

+   capable of being defined as a new resource by the requesting user

+   agent, the origin server can create the resource with that URI. If a

+   new resource is created, the origin server MUST inform the user agent

+   via the 201 (Created) response. If an existing resource is modified,

+   either the 200 (OK) or 204 (No Content) response codes SHOULD be sent

+   to indicate successful completion of the request. If the resource

+   could not be created or modified with the Request-URI, an appropriate

+   error response SHOULD be given that reflects the nature of the

+   problem. The recipient of the entity MUST NOT ignore any Content-*

+   (e.g. Content-Range) headers that it does not understand or implement

+   and MUST return a 501 (Not Implemented) response in such cases.

+

+   If the request passes through a cache and the Request-URI identifies

+   one or more currently cached entities, those entries SHOULD be

+   treated as stale. Responses to this method are not cacheable.

+

+   The fundamental difference between the POST and PUT requests is

+   reflected in the different meaning of the Request-URI. The URI in a

+   POST request identifies the resource that will handle the enclosed

+   entity. That resource might be a data-accepting process, a gateway to

+   some other protocol, or a separate entity that accepts annotations.

+   In contrast, the URI in a PUT request identifies the entity enclosed

+   with the request -- the user agent knows what URI is intended and the

+   server MUST NOT attempt to apply the request to some other resource.

+   If the server desires that the request be applied to a different URI,

+

+   it MUST send a 301 (Moved Permanently) response; the user agent MAY

+   then make its own decision regarding whether or not to redirect the

+   request.

+

+   A single resource MAY be identified by many different URIs. For

+   example, an article might have a URI for identifying "the current

+   version" which is separate from the URI identifying each particular

+   version. In this case, a PUT request on a general URI might result in

+   several other URIs being defined by the origin server.

+

+   HTTP/1.1 does not define how a PUT method affects the state of an

+   origin server.

+

+   PUT requests MUST obey the message transmission requirements set out

+   in section 8.2.

+

+   Unless otherwise specified for a particular entity-header, the

+   entity-headers in the PUT request SHOULD be applied to the resource

+   created or modified by the PUT.

+

+9.7 DELETE

+

+   The DELETE method requests that the origin server delete the resource

+   identified by the Request-URI. This method MAY be overridden by human

+   intervention (or other means) on the origin server. The client cannot

+   be guaranteed that the operation has been carried out, even if the

+   status code returned from the origin server indicates that the action

+   has been completed successfully. However, the server SHOULD NOT

+   indicate success unless, at the time the response is given, it

+   intends to delete the resource or move it to an inaccessible

+   location.

+

+   A successful response SHOULD be 200 (OK) if the response includes an

+   entity describing the status, 202 (Accepted) if the action has not

+   yet been enacted, or 204 (No Content) if the action has been enacted

+   but the response does not include an entity.

+

+   If the request passes through a cache and the Request-URI identifies

+   one or more currently cached entities, those entries SHOULD be

+   treated as stale. Responses to this method are not cacheable.

+

+9.8 TRACE

+

+   The TRACE method is used to invoke a remote, application-layer loop-

+   back of the request message. The final recipient of the request

+   SHOULD reflect the message received back to the client as the

+   entity-body of a 200 (OK) response. The final recipient is either the

+

+   origin server or the first proxy or gateway to receive a Max-Forwards

+   value of zero (0) in the request (see section 14.31). A TRACE request

+   MUST NOT include an entity.

+

+   TRACE allows the client to see what is being received at the other

+   end of the request chain and use that data for testing or diagnostic

+   information. The value of the Via header field (section 14.45) is of

+   particular interest, since it acts as a trace of the request chain.

+   Use of the Max-Forwards header field allows the client to limit the

+   length of the request chain, which is useful for testing a chain of

+   proxies forwarding messages in an infinite loop.

+

+   If the request is valid, the response SHOULD contain the entire

+   request message in the entity-body, with a Content-Type of

+   "message/http". Responses to this method MUST NOT be cached.

+

+9.9 CONNECT

+

+   This specification reserves the method name CONNECT for use with a

+   proxy that can dynamically switch to being a tunnel (e.g. SSL

+   tunneling [44]).

+

+10 Status Code Definitions

+

+   Each Status-Code is described below, including a description of which

+   method(s) it can follow and any metainformation required in the

+   response.

+

+10.1 Informational 1xx

+

+   This class of status code indicates a provisional response,

+   consisting only of the Status-Line and optional headers, and is

+   terminated by an empty line. There are no required headers for this

+   class of status code. Since HTTP/1.0 did not define any 1xx status

+   codes, servers MUST NOT send a 1xx response to an HTTP/1.0 client

+   except under experimental conditions.

+

+   A client MUST be prepared to accept one or more 1xx status responses

+   prior to a regular response, even if the client does not expect a 100

+   (Continue) status message. Unexpected 1xx status responses MAY be

+   ignored by a user agent.

+

+   Proxies MUST forward 1xx responses, unless the connection between the

+   proxy and its client has been closed, or unless the proxy itself

+   requested the generation of the 1xx response. (For example, if a

+

+   proxy adds a "Expect: 100-continue" field when it forwards a request,

+   then it need not forward the corresponding 100 (Continue)

+   response(s).)

+

+10.1.1 100 Continue

+

+   The client SHOULD continue with its request. This interim response is

+   used to inform the client that the initial part of the request has

+   been received and has not yet been rejected by the server. The client

+   SHOULD continue by sending the remainder of the request or, if the

+   request has already been completed, ignore this response. The server

+   MUST send a final response after the request has been completed. See

+   section 8.2.3 for detailed discussion of the use and handling of this

+   status code.

+

+10.1.2 101 Switching Protocols

+

+   The server understands and is willing to comply with the client's

+   request, via the Upgrade message header field (section 14.42), for a

+   change in the application protocol being used on this connection. The

+   server will switch protocols to those defined by the response's

+   Upgrade header field immediately after the empty line which

+   terminates the 101 response.

+

+   The protocol SHOULD be switched only when it is advantageous to do

+   so. For example, switching to a newer version of HTTP is advantageous

+   over older versions, and switching to a real-time, synchronous

+   protocol might be advantageous when delivering resources that use

+   such features.

+

+10.2 Successful 2xx

+

+   This class of status code indicates that the client's request was

+   successfully received, understood, and accepted.

+

+10.2.1 200 OK

+

+   The request has succeeded. The information returned with the response

+   is dependent on the method used in the request, for example:

+

+   GET    an entity corresponding to the requested resource is sent in

+          the response;

+

+   HEAD   the entity-header fields corresponding to the requested

+          resource are sent in the response without any message-body;

+

+   POST   an entity describing or containing the result of the action;

+

+   TRACE  an entity containing the request message as received by the

+          end server.

+

+10.2.2 201 Created

+

+   The request has been fulfilled and resulted in a new resource being

+   created. The newly created resource can be referenced by the URI(s)

+   returned in the entity of the response, with the most specific URI

+   for the resource given by a Location header field. The response

+   SHOULD include an entity containing a list of resource

+   characteristics and location(s) from which the user or user agent can

+   choose the one most appropriate. The entity format is specified by

+   the media type given in the Content-Type header field. The origin

+   server MUST create the resource before returning the 201 status code.

+   If the action cannot be carried out immediately, the server SHOULD

+   respond with 202 (Accepted) response instead.

+

+   A 201 response MAY contain an ETag response header field indicating

+   the current value of the entity tag for the requested variant just

+   created, see section 14.19.

+

+10.2.3 202 Accepted

+

+   The request has been accepted for processing, but the processing has

+   not been completed.  The request might or might not eventually be

+   acted upon, as it might be disallowed when processing actually takes

+   place. There is no facility for re-sending a status code from an

+   asynchronous operation such as this.

+

+   The 202 response is intentionally non-committal. Its purpose is to

+   allow a server to accept a request for some other process (perhaps a

+   batch-oriented process that is only run once per day) without

+   requiring that the user agent's connection to the server persist

+   until the process is completed. The entity returned with this

+   response SHOULD include an indication of the request's current status

+   and either a pointer to a status monitor or some estimate of when the

+   user can expect the request to be fulfilled.

+

+10.2.4 203 Non-Authoritative Information

+

+   The returned metainformation in the entity-header is not the

+   definitive set as available from the origin server, but is gathered

+   from a local or a third-party copy. The set presented MAY be a subset

+   or superset of the original version. For example, including local

+   annotation information about the resource might result in a superset

+   of the metainformation known by the origin server. Use of this

+   response code is not required and is only appropriate when the

+   response would otherwise be 200 (OK).

+

+10.2.5 204 No Content

+

+   The server has fulfilled the request but does not need to return an

+   entity-body, and might want to return updated metainformation. The

+   response MAY include new or updated metainformation in the form of

+   entity-headers, which if present SHOULD be associated with the

+   requested variant.

+

+   If the client is a user agent, it SHOULD NOT change its document view

+   from that which caused the request to be sent. This response is

+   primarily intended to allow input for actions to take place without

+   causing a change to the user agent's active document view, although

+   any new or updated metainformation SHOULD be applied to the document

+   currently in the user agent's active view.

+

+   The 204 response MUST NOT include a message-body, and thus is always

+   terminated by the first empty line after the header fields.

+

+10.2.6 205 Reset Content

+

+   The server has fulfilled the request and the user agent SHOULD reset

+   the document view which caused the request to be sent. This response

+   is primarily intended to allow input for actions to take place via

+   user input, followed by a clearing of the form in which the input is

+   given so that the user can easily initiate another input action. The

+   response MUST NOT include an entity.

+

+10.2.7 206 Partial Content

+

+   The server has fulfilled the partial GET request for the resource.

+   The request MUST have included a Range header field (section 14.35)

+   indicating the desired range, and MAY have included an If-Range

+   header field (section 14.27) to make the request conditional.

+

+   The response MUST include the following header fields:

+

+      - Either a Content-Range header field (section 14.16) indicating

+        the range included with this response, or a multipart/byteranges

+        Content-Type including Content-Range fields for each part. If a

+        Content-Length header field is present in the response, its

+        value MUST match the actual number of OCTETs transmitted in the

+        message-body.

+

+      - Date

+

+      - ETag and/or Content-Location, if the header would have been sent

+        in a 200 response to the same request

+

+      - Expires, Cache-Control, and/or Vary, if the field-value might

+        differ from that sent in any previous response for the same

+        variant

+

+   If the 206 response is the result of an If-Range request that used a

+   strong cache validator (see section 13.3.3), the response SHOULD NOT

+   include other entity-headers. If the response is the result of an

+   If-Range request that used a weak validator, the response MUST NOT

+   include other entity-headers; this prevents inconsistencies between

+   cached entity-bodies and updated headers. Otherwise, the response

+   MUST include all of the entity-headers that would have been returned

+   with a 200 (OK) response to the same request.

+

+   A cache MUST NOT combine a 206 response with other previously cached

+   content if the ETag or Last-Modified headers do not match exactly,

+   see 13.5.4.

+

+   A cache that does not support the Range and Content-Range headers

+   MUST NOT cache 206 (Partial) responses.

+

+10.3 Redirection 3xx

+

+   This class of status code indicates that further action needs to be

+   taken by the user agent in order to fulfill the request.  The action

+   required MAY be carried out by the user agent without interaction

+   with the user if and only if the method used in the second request is

+   GET or HEAD. A client SHOULD detect infinite redirection loops, since

+   such loops generate network traffic for each redirection.

+

+      Note: previous versions of this specification recommended a

+      maximum of five redirections. Content developers should be aware

+      that there might be clients that implement such a fixed

+      limitation.

+

+10.3.1 300 Multiple Choices

+

+   The requested resource corresponds to any one of a set of

+   representations, each with its own specific location, and agent-

+   driven negotiation information (section 12) is being provided so that

+   the user (or user agent) can select a preferred representation and

+   redirect its request to that location.

+

+   Unless it was a HEAD request, the response SHOULD include an entity

+   containing a list of resource characteristics and location(s) from

+   which the user or user agent can choose the one most appropriate. The

+   entity format is specified by the media type given in the Content-

+   Type header field. Depending upon the format and the capabilities of

+

+   the user agent, selection of the most appropriate choice MAY be

+   performed automatically. However, this specification does not define

+   any standard for such automatic selection.

+

+   If the server has a preferred choice of representation, it SHOULD

+   include the specific URI for that representation in the Location

+   field; user agents MAY use the Location field value for automatic

+   redirection. This response is cacheable unless indicated otherwise.

+

+10.3.2 301 Moved Permanently

+

+   The requested resource has been assigned a new permanent URI and any

+   future references to this resource SHOULD use one of the returned

+   URIs.  Clients with link editing capabilities ought to automatically

+   re-link references to the Request-URI to one or more of the new

+   references returned by the server, where possible. This response is

+   cacheable unless indicated otherwise.

+

+   The new permanent URI SHOULD be given by the Location field in the

+   response. Unless the request method was HEAD, the entity of the

+   response SHOULD contain a short hypertext note with a hyperlink to

+   the new URI(s).

+

+   If the 301 status code is received in response to a request other

+   than GET or HEAD, the user agent MUST NOT automatically redirect the

+   request unless it can be confirmed by the user, since this might

+   change the conditions under which the request was issued.

+

+      Note: When automatically redirecting a POST request after

+      receiving a 301 status code, some existing HTTP/1.0 user agents

+      will erroneously change it into a GET request.

+

+10.3.3 302 Found

+

+   The requested resource resides temporarily under a different URI.

+   Since the redirection might be altered on occasion, the client SHOULD

+   continue to use the Request-URI for future requests.  This response

+   is only cacheable if indicated by a Cache-Control or Expires header

+   field.

+

+   The temporary URI SHOULD be given by the Location field in the

+   response. Unless the request method was HEAD, the entity of the

+   response SHOULD contain a short hypertext note with a hyperlink to

+   the new URI(s).

+

+   If the 302 status code is received in response to a request other

+   than GET or HEAD, the user agent MUST NOT automatically redirect the

+   request unless it can be confirmed by the user, since this might

+   change the conditions under which the request was issued.

+

+      Note: <a href="http://firefly.troll.no/rfcs/rfc1945.html">RFC 1945</a> and <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> specify that the client is not allowed

+      to change the method on the redirected request.  However, most

+      existing user agent implementations treat 302 as if it were a 303

+      response, performing a GET on the Location field-value regardless

+      of the original request method. The status codes 303 and 307 have

+      been added for servers that wish to make unambiguously clear which

+      kind of reaction is expected of the client.

+

+10.3.4 303 See Other

+

+   The response to the request can be found under a different URI and

+   SHOULD be retrieved using a GET method on that resource. This method

+   exists primarily to allow the output of a POST-activated script to

+   redirect the user agent to a selected resource. The new URI is not a

+   substitute reference for the originally requested resource. The 303

+   response MUST NOT be cached, but the response to the second

+   (redirected) request might be cacheable.

+

+   The different URI SHOULD be given by the Location field in the

+   response. Unless the request method was HEAD, the entity of the

+   response SHOULD contain a short hypertext note with a hyperlink to

+   the new URI(s).

+

+      Note: Many pre-HTTP/1.1 user agents do not understand the 303

+      status. When interoperability with such clients is a concern, the

+      302 status code may be used instead, since most user agents react

+      to a 302 response as described here for 303.

+

+10.3.5 304 Not Modified

+

+   If the client has performed a conditional GET request and access is

+   allowed, but the document has not been modified, the server SHOULD

+   respond with this status code. The 304 response MUST NOT contain a

+   message-body, and thus is always terminated by the first empty line

+   after the header fields.

+

+   The response MUST include the following header fields:

+

+      - Date, unless its omission is required by section 14.18.1

+

+   If a clockless origin server obeys these rules, and proxies and

+   clients add their own Date to any response received without one (as

+   already specified by [<a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>], section 14.19), caches will operate

+   correctly.

+

+      - ETag and/or Content-Location, if the header would have been sent

+        in a 200 response to the same request

+

+      - Expires, Cache-Control, and/or Vary, if the field-value might

+        differ from that sent in any previous response for the same

+        variant

+

+   If the conditional GET used a strong cache validator (see section

+   13.3.3), the response SHOULD NOT include other entity-headers.

+   Otherwise (i.e., the conditional GET used a weak validator), the

+   response MUST NOT include other entity-headers; this prevents

+   inconsistencies between cached entity-bodies and updated headers.

+

+   If a 304 response indicates an entity not currently cached, then the

+   cache MUST disregard the response and repeat the request without the

+   conditional.

+

+   If a cache uses a received 304 response to update a cache entry, the

+   cache MUST update the entry to reflect any new field values given in

+   the response.

+

+10.3.6 305 Use Proxy

+

+   The requested resource MUST be accessed through the proxy given by

+   the Location field. The Location field gives the URI of the proxy.

+   The recipient is expected to repeat this single request via the

+   proxy. 305 responses MUST only be generated by origin servers.

+

+      Note: <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> was not clear that 305 was intended to redirect a

+      single request, and to be generated by origin servers only.  Not

+      observing these limitations has significant security consequences.

+

+10.3.7 306 (Unused)

+

+   The 306 status code was used in a previous version of the

+   specification, is no longer used, and the code is reserved.

+

+10.3.8 307 Temporary Redirect

+

+   The requested resource resides temporarily under a different URI.

+   Since the redirection MAY be altered on occasion, the client SHOULD

+   continue to use the Request-URI for future requests.  This response

+   is only cacheable if indicated by a Cache-Control or Expires header

+   field.

+

+   The temporary URI SHOULD be given by the Location field in the

+   response. Unless the request method was HEAD, the entity of the

+   response SHOULD contain a short hypertext note with a hyperlink to

+   the new URI(s) , since many pre-HTTP/1.1 user agents do not

+   understand the 307 status. Therefore, the note SHOULD contain the

+   information necessary for a user to repeat the original request on

+   the new URI.

+

+   If the 307 status code is received in response to a request other

+   than GET or HEAD, the user agent MUST NOT automatically redirect the

+   request unless it can be confirmed by the user, since this might

+   change the conditions under which the request was issued.

+

+10.4 Client Error 4xx

+

+   The 4xx class of status code is intended for cases in which the

+   client seems to have erred. Except when responding to a HEAD request,

+   the server SHOULD include an entity containing an explanation of the

+   error situation, and whether it is a temporary or permanent

+   condition. These status codes are applicable to any request method.

+   User agents SHOULD display any included entity to the user.

+

+   If the client is sending data, a server implementation using TCP

+   SHOULD be careful to ensure that the client acknowledges receipt of

+   the packet(s) containing the response, before the server closes the

+   input connection. If the client continues sending data to the server

+   after the close, the server's TCP stack will send a reset packet to

+   the client, which may erase the client's unacknowledged input buffers

+   before they can be read and interpreted by the HTTP application.

+

+10.4.1 400 Bad Request

+

+   The request could not be understood by the server due to malformed

+   syntax. The client SHOULD NOT repeat the request without

+   modifications.

+

+10.4.2 401 Unauthorized

+

+   The request requires user authentication. The response MUST include a

+   WWW-Authenticate header field (section 14.47) containing a challenge

+   applicable to the requested resource. The client MAY repeat the

+   request with a suitable Authorization header field (section 14.8). If

+   the request already included Authorization credentials, then the 401

+   response indicates that authorization has been refused for those

+   credentials. If the 401 response contains the same challenge as the

+   prior response, and the user agent has already attempted

+   authentication at least once, then the user SHOULD be presented the

+   entity that was given in the response, since that entity might

+   include relevant diagnostic information. HTTP access authentication

+   is explained in "HTTP Authentication: Basic and Digest Access

+   Authentication" [43].

+

+10.4.3 402 Payment Required

+

+   This code is reserved for future use.

+

+10.4.4 403 Forbidden

+

+   The server understood the request, but is refusing to fulfill it.

+   Authorization will not help and the request SHOULD NOT be repeated.

+   If the request method was not HEAD and the server wishes to make

+   public why the request has not been fulfilled, it SHOULD describe the

+   reason for the refusal in the entity.  If the server does not wish to

+   make this information available to the client, the status code 404

+   (Not Found) can be used instead.

+

+10.4.5 404 Not Found

+

+   The server has not found anything matching the Request-URI. No

+   indication is given of whether the condition is temporary or

+   permanent. The 410 (Gone) status code SHOULD be used if the server

+   knows, through some internally configurable mechanism, that an old

+   resource is permanently unavailable and has no forwarding address.

+   This status code is commonly used when the server does not wish to

+   reveal exactly why the request has been refused, or when no other

+   response is applicable.

+

+10.4.6 405 Method Not Allowed

+

+   The method specified in the Request-Line is not allowed for the

+   resource identified by the Request-URI. The response MUST include an

+   Allow header containing a list of valid methods for the requested

+   resource.

+

+10.4.7 406 Not Acceptable

+

+   The resource identified by the request is only capable of generating

+   response entities which have content characteristics not acceptable

+   according to the accept headers sent in the request.

+

+   Unless it was a HEAD request, the response SHOULD include an entity

+   containing a list of available entity characteristics and location(s)

+   from which the user or user agent can choose the one most

+   appropriate. The entity format is specified by the media type given

+   in the Content-Type header field. Depending upon the format and the

+   capabilities of the user agent, selection of the most appropriate

+   choice MAY be performed automatically. However, this specification

+   does not define any standard for such automatic selection.

+

+      Note: HTTP/1.1 servers are allowed to return responses which are

+      not acceptable according to the accept headers sent in the

+      request. In some cases, this may even be preferable to sending a

+      406 response. User agents are encouraged to inspect the headers of

+      an incoming response to determine if it is acceptable.

+

+   If the response could be unacceptable, a user agent SHOULD

+   temporarily stop receipt of more data and query the user for a

+   decision on further actions.

+

+10.4.8 407 Proxy Authentication Required

+

+   This code is similar to 401 (Unauthorized), but indicates that the

+   client must first authenticate itself with the proxy. The proxy MUST

+   return a Proxy-Authenticate header field (section 14.33) containing a

+   challenge applicable to the proxy for the requested resource. The

+   client MAY repeat the request with a suitable Proxy-Authorization

+   header field (section 14.34). HTTP access authentication is explained

+   in "HTTP Authentication: Basic and Digest Access Authentication"

+   [43].

+

+10.4.9 408 Request Timeout

+

+   The client did not produce a request within the time that the server

+   was prepared to wait. The client MAY repeat the request without

+   modifications at any later time.

+

+10.4.10 409 Conflict

+

+   The request could not be completed due to a conflict with the current

+   state of the resource. This code is only allowed in situations where

+   it is expected that the user might be able to resolve the conflict

+   and resubmit the request. The response body SHOULD include enough

+

+   information for the user to recognize the source of the conflict.

+   Ideally, the response entity would include enough information for the

+   user or user agent to fix the problem; however, that might not be

+   possible and is not required.

+

+   Conflicts are most likely to occur in response to a PUT request. For

+   example, if versioning were being used and the entity being PUT

+   included changes to a resource which conflict with those made by an

+   earlier (third-party) request, the server might use the 409 response

+   to indicate that it can't complete the request. In this case, the

+   response entity would likely contain a list of the differences

+   between the two versions in a format defined by the response

+   Content-Type.

+

+10.4.11 410 Gone

+

+   The requested resource is no longer available at the server and no

+   forwarding address is known. This condition is expected to be

+   considered permanent. Clients with link editing capabilities SHOULD

+   delete references to the Request-URI after user approval. If the

+   server does not know, or has no facility to determine, whether or not

+   the condition is permanent, the status code 404 (Not Found) SHOULD be

+   used instead. This response is cacheable unless indicated otherwise.

+

+   The 410 response is primarily intended to assist the task of web

+   maintenance by notifying the recipient that the resource is

+   intentionally unavailable and that the server owners desire that

+   remote links to that resource be removed. Such an event is common for

+   limited-time, promotional services and for resources belonging to

+   individuals no longer working at the server's site. It is not

+   necessary to mark all permanently unavailable resources as "gone" or

+   to keep the mark for any length of time -- that is left to the

+   discretion of the server owner.

+

+10.4.12 411 Length Required

+

+   The server refuses to accept the request without a defined Content-

+   Length. The client MAY repeat the request if it adds a valid

+   Content-Length header field containing the length of the message-body

+   in the request message.

+

+10.4.13 412 Precondition Failed

+

+   The precondition given in one or more of the request-header fields

+   evaluated to false when it was tested on the server. This response

+   code allows the client to place preconditions on the current resource

+   metainformation (header field data) and thus prevent the requested

+   method from being applied to a resource other than the one intended.

+

+10.4.14 413 Request Entity Too Large

+

+   The server is refusing to process a request because the request

+   entity is larger than the server is willing or able to process. The

+   server MAY close the connection to prevent the client from continuing

+   the request.

+

+   If the condition is temporary, the server SHOULD include a Retry-

+   After header field to indicate that it is temporary and after what

+   time the client MAY try again.

+

+10.4.15 414 Request-URI Too Long

+

+   The server is refusing to service the request because the Request-URI

+   is longer than the server is willing to interpret. This rare

+   condition is only likely to occur when a client has improperly

+   converted a POST request to a GET request with long query

+   information, when the client has descended into a URI "black hole" of

+   redirection (e.g., a redirected URI prefix that points to a suffix of

+   itself), or when the server is under attack by a client attempting to

+   exploit security holes present in some servers using fixed-length

+   buffers for reading or manipulating the Request-URI.

+

+10.4.16 415 Unsupported Media Type

+

+   The server is refusing to service the request because the entity of

+   the request is in a format not supported by the requested resource

+   for the requested method.

+

+10.4.17 416 Requested Range Not Satisfiable

+

+   A server SHOULD return a response with this status code if a request

+   included a Range request-header field (section 14.35), and none of

+   the range-specifier values in this field overlap the current extent

+   of the selected resource, and the request did not include an If-Range

+   request-header field. (For byte-ranges, this means that the first-

+   byte-pos of all of the byte-range-spec values were greater than the

+   current length of the selected resource.)

+

+   When this status code is returned for a byte-range request, the

+   response SHOULD include a Content-Range entity-header field

+   specifying the current length of the selected resource (see section

+   14.16). This response MUST NOT use the multipart/byteranges content-

+   type.

+

+10.4.18 417 Expectation Failed

+

+   The expectation given in an Expect request-header field (see section

+   14.20) could not be met by this server, or, if the server is a proxy,

+   the server has unambiguous evidence that the request could not be met

+   by the next-hop server.

+

+10.5 Server Error 5xx

+

+   Response status codes beginning with the digit "5" indicate cases in

+   which the server is aware that it has erred or is incapable of

+   performing the request. Except when responding to a HEAD request, the

+   server SHOULD include an entity containing an explanation of the

+   error situation, and whether it is a temporary or permanent

+   condition. User agents SHOULD display any included entity to the

+   user. These response codes are applicable to any request method.

+

+10.5.1 500 Internal Server Error

+

+   The server encountered an unexpected condition which prevented it

+   from fulfilling the request.

+

+10.5.2 501 Not Implemented

+

+   The server does not support the functionality required to fulfill the

+   request. This is the appropriate response when the server does not

+   recognize the request method and is not capable of supporting it for

+   any resource.

+

+10.5.3 502 Bad Gateway

+

+   The server, while acting as a gateway or proxy, received an invalid

+   response from the upstream server it accessed in attempting to

+   fulfill the request.

+

+10.5.4 503 Service Unavailable

+

+   The server is currently unable to handle the request due to a

+   temporary overloading or maintenance of the server. The implication

+   is that this is a temporary condition which will be alleviated after

+   some delay. If known, the length of the delay MAY be indicated in a

+   Retry-After header. If no Retry-After is given, the client SHOULD

+   handle the response as it would for a 500 response.

+

+      Note: The existence of the 503 status code does not imply that a

+      server must use it when becoming overloaded. Some servers may wish

+      to simply refuse the connection.

+

+10.5.5 504 Gateway Timeout

+

+   The server, while acting as a gateway or proxy, did not receive a

+   timely response from the upstream server specified by the URI (e.g.

+   HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed

+   to access in attempting to complete the request.

+

+      Note: Note to implementors: some deployed proxies are known to

+      return 400 or 500 when DNS lookups time out.

+

+10.5.6 505 HTTP Version Not Supported

+

+   The server does not support, or refuses to support, the HTTP protocol

+   version that was used in the request message. The server is

+   indicating that it is unable or unwilling to complete the request

+   using the same major version as the client, as described in section

+   3.1, other than with this error message. The response SHOULD contain

+   an entity describing why that version is not supported and what other

+   protocols are supported by that server.

+

+11 Access Authentication

+

+   HTTP provides several OPTIONAL challenge-response authentication

+   mechanisms which can be used by a server to challenge a client

+   request and by a client to provide authentication information. The

+   general framework for access authentication, and the specification of

+   "basic" and "digest" authentication, are specified in "HTTP

+   Authentication: Basic and Digest Access Authentication" [43]. This

+   specification adopts the definitions of "challenge" and "credentials"

+   from that specification.

+

+12 Content Negotiation

+

+   Most HTTP responses include an entity which contains information for

+   interpretation by a human user. Naturally, it is desirable to supply

+   the user with the "best available" entity corresponding to the

+   request. Unfortunately for servers and caches, not all users have the

+   same preferences for what is "best," and not all user agents are

+   equally capable of rendering all entity types. For that reason, HTTP

+   has provisions for several mechanisms for "content negotiation" --

+   the process of selecting the best representation for a given response

+   when there are multiple representations available.

+

+      Note: This is not called "format negotiation" because the

+      alternate representations may be of the same media type, but use

+      different capabilities of that type, be in different languages,

+      etc.

+

+   Any response containing an entity-body MAY be subject to negotiation,

+   including error responses.

+

+   There are two kinds of content negotiation which are possible in

+   HTTP: server-driven and agent-driven negotiation. These two kinds of

+   negotiation are orthogonal and thus may be used separately or in

+   combination. One method of combination, referred to as transparent

+   negotiation, occurs when a cache uses the agent-driven negotiation

+   information provided by the origin server in order to provide

+   server-driven negotiation for subsequent requests.

+

+12.1 Server-driven Negotiation

+

+   If the selection of the best representation for a response is made by

+   an algorithm located at the server, it is called server-driven

+   negotiation. Selection is based on the available representations of

+   the response (the dimensions over which it can vary; e.g. language,

+   content-coding, etc.) and the contents of particular header fields in

+   the request message or on other information pertaining to the request

+   (such as the network address of the client).

+

+   Server-driven negotiation is advantageous when the algorithm for

+   selecting from among the available representations is difficult to

+   describe to the user agent, or when the server desires to send its

+   "best guess" to the client along with the first response (hoping to

+   avoid the round-trip delay of a subsequent request if the "best

+   guess" is good enough for the user). In order to improve the server's

+   guess, the user agent MAY include request header fields (Accept,

+   Accept-Language, Accept-Encoding, etc.) which describe its

+   preferences for such a response.

+

+   Server-driven negotiation has disadvantages:

+

+      1. It is impossible for the server to accurately determine what

+         might be "best" for any given user, since that would require

+         complete knowledge of both the capabilities of the user agent

+         and the intended use for the response (e.g., does the user want

+         to view it on screen or print it on paper?).

+

+      2. Having the user agent describe its capabilities in every

+         request can be both very inefficient (given that only a small

+         percentage of responses have multiple representations) and a

+         potential violation of the user's privacy.

+

+      3. It complicates the implementation of an origin server and the

+         algorithms for generating responses to a request.

+

+      4. It may limit a public cache's ability to use the same response

+         for multiple user's requests.

+

+   HTTP/1.1 includes the following request-header fields for enabling

+   server-driven negotiation through description of user agent

+   capabilities and user preferences: Accept (section 14.1), Accept-

+   Charset (section 14.2), Accept-Encoding (section 14.3), Accept-

+   Language (section 14.4), and User-Agent (section 14.43). However, an

+   origin server is not limited to these dimensions and MAY vary the

+   response based on any aspect of the request, including information

+   outside the request-header fields or within extension header fields

+   not defined by this specification.

+

+   The Vary  header field can be used to express the parameters the

+   server uses to select a representation that is subject to server-

+   driven negotiation. See section 13.6 for use of the Vary header field

+   by caches and section 14.44 for use of the Vary header field by

+   servers.

+

+12.2 Agent-driven Negotiation

+

+   With agent-driven negotiation, selection of the best representation

+   for a response is performed by the user agent after receiving an

+   initial response from the origin server. Selection is based on a list

+   of the available representations of the response included within the

+   header fields or entity-body of the initial response, with each

+   representation identified by its own URI. Selection from among the

+   representations may be performed automatically (if the user agent is

+   capable of doing so) or manually by the user selecting from a

+   generated (possibly hypertext) menu.

+

+   Agent-driven negotiation is advantageous when the response would vary

+   over commonly-used dimensions (such as type, language, or encoding),

+   when the origin server is unable to determine a user agent's

+   capabilities from examining the request, and generally when public

+   caches are used to distribute server load and reduce network usage.

+

+   Agent-driven negotiation suffers from the disadvantage of needing a

+   second request to obtain the best alternate representation. This

+   second request is only efficient when caching is used. In addition,

+   this specification does not define any mechanism for supporting

+   automatic selection, though it also does not prevent any such

+   mechanism from being developed as an extension and used within

+   HTTP/1.1.

+

+   HTTP/1.1 defines the 300 (Multiple Choices) and 406 (Not Acceptable)

+   status codes for enabling agent-driven negotiation when the server is

+   unwilling or unable to provide a varying response using server-driven

+   negotiation.

+

+12.3 Transparent Negotiation

+

+   Transparent negotiation is a combination of both server-driven and

+   agent-driven negotiation. When a cache is supplied with a form of the

+   list of available representations of the response (as in agent-driven

+   negotiation) and the dimensions of variance are completely understood

+   by the cache, then the cache becomes capable of performing server-

+   driven negotiation on behalf of the origin server for subsequent

+   requests on that resource.

+

+   Transparent negotiation has the advantage of distributing the

+   negotiation work that would otherwise be required of the origin

+   server and also removing the second request delay of agent-driven

+   negotiation when the cache is able to correctly guess the right

+   response.

+

+   This specification does not define any mechanism for transparent

+   negotiation, though it also does not prevent any such mechanism from

+   being developed as an extension that could be used within HTTP/1.1.

+

+13 Caching in HTTP

+

+   HTTP is typically used for distributed information systems, where

+   performance can be improved by the use of response caches. The

+   HTTP/1.1 protocol includes a number of elements intended to make

+   caching work as well as possible. Because these elements are

+   inextricable from other aspects of the protocol, and because they

+   interact with each other, it is useful to describe the basic caching

+   design of HTTP separately from the detailed descriptions of methods,

+   headers, response codes, etc.

+

+   Caching would be useless if it did not significantly improve

+   performance. The goal of caching in HTTP/1.1 is to eliminate the need

+   to send requests in many cases, and to eliminate the need to send

+   full responses in many other cases. The former reduces the number of

+   network round-trips required for many operations; we use an

+   "expiration" mechanism for this purpose (see section 13.2). The

+   latter reduces network bandwidth requirements; we use a "validation"

+   mechanism for this purpose (see section 13.3).

+

+   Requirements for performance, availability, and disconnected

+   operation require us to be able to relax the goal of semantic

+   transparency. The HTTP/1.1 protocol allows origin servers, caches,

+

+   and clients to explicitly reduce transparency when necessary.

+   However, because non-transparent operation may confuse non-expert

+   users, and might be incompatible with certain server applications

+   (such as those for ordering merchandise), the protocol requires that

+   transparency be relaxed

+

+      - only by an explicit protocol-level request when relaxed by

+        client or origin server

+

+      - only with an explicit warning to the end user when relaxed by

+        cache or client

+

+   Therefore, the HTTP/1.1 protocol provides these important elements:

+

+      1. Protocol features that provide full semantic transparency when

+         this is required by all parties.

+

+      2. Protocol features that allow an origin server or user agent to

+         explicitly request and control non-transparent operation.

+

+      3. Protocol features that allow a cache to attach warnings to

+         responses that do not preserve the requested approximation of

+         semantic transparency.

+

+   A basic principle is that it must be possible for the clients to

+   detect any potential relaxation of semantic transparency.

+

+      Note: The server, cache, or client implementor might be faced with

+      design decisions not explicitly discussed in this specification.

+      If a decision might affect semantic transparency, the implementor

+      ought to err on the side of maintaining transparency unless a

+      careful and complete analysis shows significant benefits in

+      breaking transparency.

+

+13.1.1 Cache Correctness

+

+   A correct cache MUST respond to a request with the most up-to-date

+   response held by the cache that is appropriate to the request (see

+   sections 13.2.5, 13.2.6, and 13.12) which meets one of the following

+   conditions:

+

+      1. It has been checked for equivalence with what the origin server

+         would have returned by revalidating the response with the

+         origin server (section 13.3);

+

+      2. It is "fresh enough" (see section 13.2). In the default case,

+         this means it meets the least restrictive freshness requirement

+         of the client, origin server, and cache (see section 14.9); if

+         the origin server so specifies, it is the freshness requirement

+         of the origin server alone.

+

+         If a stored response is not "fresh enough" by the most

+         restrictive freshness requirement of both the client and the

+         origin server, in carefully considered circumstances the cache

+         MAY still return the response with the appropriate Warning

+         header (see section 13.1.5 and 14.46), unless such a response

+         is prohibited (e.g., by a "no-store" cache-directive, or by a

+         "no-cache" cache-request-directive; see section 14.9).

+

+      3. It is an appropriate 304 (Not Modified), 305 (Proxy Redirect),

+         or error (4xx or 5xx) response message.

+

+   If the cache can not communicate with the origin server, then a

+   correct cache SHOULD respond as above if the response can be

+   correctly served from the cache; if not it MUST return an error or

+   warning indicating that there was a communication failure.

+

+   If a cache receives a response (either an entire response, or a 304

+   (Not Modified) response) that it would normally forward to the

+   requesting client, and the received response is no longer fresh, the

+   cache SHOULD forward it to the requesting client without adding a new

+   Warning (but without removing any existing Warning headers). A cache

+   SHOULD NOT attempt to revalidate a response simply because that

+   response became stale in transit; this might lead to an infinite

+   loop. A user agent that receives a stale response without a Warning

+   MAY display a warning indication to the user.

+

+13.1.2 Warnings

+

+   Whenever a cache returns a response that is neither first-hand nor

+   "fresh enough" (in the sense of condition 2 in section 13.1.1), it

+   MUST attach a warning to that effect, using a Warning general-header.

+   The Warning header and the currently defined warnings are described

+   in section 14.46. The warning allows clients to take appropriate

+   action.

+

+   Warnings MAY be used for other purposes, both cache-related and

+   otherwise. The use of a warning, rather than an error status code,

+   distinguish these responses from true failures.

+

+   Warnings are assigned three digit warn-codes. The first digit

+   indicates whether the Warning MUST or MUST NOT be deleted from a

+   stored cache entry after a successful revalidation:

+

+   1xx  Warnings that describe the freshness or revalidation status of

+     the response, and so MUST be deleted after a successful

+     revalidation. 1XX warn-codes MAY be generated by a cache only when

+     validating a cached entry. It MUST NOT be generated by clients.

+

+   2xx  Warnings that describe some aspect of the entity body or entity

+     headers that is not rectified by a revalidation (for example, a

+     lossy compression of the entity bodies) and which MUST NOT be

+     deleted after a successful revalidation.

+

+   See section 14.46 for the definitions of the codes themselves.

+

+   HTTP/1.0 caches will cache all Warnings in responses, without

+   deleting the ones in the first category. Warnings in responses that

+   are passed to HTTP/1.0 caches carry an extra warning-date field,

+   which prevents a future HTTP/1.1 recipient from believing an

+   erroneously cached Warning.

+

+   Warnings also carry a warning text. The text MAY be in any

+   appropriate natural language (perhaps based on the client's Accept

+   headers), and include an OPTIONAL indication of what character set is

+   used.

+

+   Multiple warnings MAY be attached to a response (either by the origin

+   server or by a cache), including multiple warnings with the same code

+   number. For example, a server might provide the same warning with

+   texts in both English and Basque.

+

+   When multiple warnings are attached to a response, it might not be

+   practical or reasonable to display all of them to the user. This

+   version of HTTP does not specify strict priority rules for deciding

+   which warnings to display and in what order, but does suggest some

+   heuristics.

+

+13.1.3 Cache-control Mechanisms

+

+   The basic cache mechanisms in HTTP/1.1 (server-specified expiration

+   times and validators) are implicit directives to caches. In some

+   cases, a server or client might need to provide explicit directives

+   to the HTTP caches. We use the Cache-Control header for this purpose.

+

+   The Cache-Control header allows a client or server to transmit a

+   variety of directives in either requests or responses. These

+   directives typically override the default caching algorithms. As a

+   general rule, if there is any apparent conflict between header

+   values, the most restrictive interpretation is applied (that is, the

+   one that is most likely to preserve semantic transparency). However,

+

+   in some cases, cache-control directives are explicitly specified as

+   weakening the approximation of semantic transparency (for example,

+   "max-stale" or "public").

+

+   The cache-control directives are described in detail in section 14.9.

+

+13.1.4 Explicit User Agent Warnings

+

+   Many user agents make it possible for users to override the basic

+   caching mechanisms. For example, the user agent might allow the user

+   to specify that cached entities (even explicitly stale ones) are

+   never validated. Or the user agent might habitually add "Cache-

+   Control: max-stale=3600" to every request. The user agent SHOULD NOT

+   default to either non-transparent behavior, or behavior that results

+   in abnormally ineffective caching, but MAY be explicitly configured

+   to do so by an explicit action of the user.

+

+   If the user has overridden the basic caching mechanisms, the user

+   agent SHOULD explicitly indicate to the user whenever this results in

+   the display of information that might not meet the server's

+   transparency requirements (in particular, if the displayed entity is

+   known to be stale). Since the protocol normally allows the user agent

+   to determine if responses are stale or not, this indication need only

+   be displayed when this actually happens. The indication need not be a

+   dialog box; it could be an icon (for example, a picture of a rotting

+   fish) or some other indicator.

+

+   If the user has overridden the caching mechanisms in a way that would

+   abnormally reduce the effectiveness of caches, the user agent SHOULD

+   continually indicate this state to the user (for example, by a

+   display of a picture of currency in flames) so that the user does not

+   inadvertently consume excess resources or suffer from excessive

+   latency.

+

+13.1.5 Exceptions to the Rules and Warnings

+

+   In some cases, the operator of a cache MAY choose to configure it to

+   return stale responses even when not requested by clients. This

+   decision ought not be made lightly, but may be necessary for reasons

+   of availability or performance, especially when the cache is poorly

+   connected to the origin server. Whenever a cache returns a stale

+   response, it MUST mark it as such (using a Warning header) enabling

+   the client software to alert the user that there might be a potential

+   problem.

+

+   It also allows the user agent to take steps to obtain a first-hand or

+   fresh response. For this reason, a cache SHOULD NOT return a stale

+   response if the client explicitly requests a first-hand or fresh one,

+   unless it is impossible to comply for technical or policy reasons.

+

+13.1.6 Client-controlled Behavior

+

+   While the origin server (and to a lesser extent, intermediate caches,

+   by their contribution to the age of a response) are the primary

+   source of expiration information, in some cases the client might need

+   to control a cache's decision about whether to return a cached

+   response without validating it. Clients do this using several

+   directives of the Cache-Control header.

+

+   A client's request MAY specify the maximum age it is willing to

+   accept of an unvalidated response; specifying a value of zero forces

+   the cache(s) to revalidate all responses. A client MAY also specify

+   the minimum time remaining before a response expires. Both of these

+   options increase constraints on the behavior of caches, and so cannot

+   further relax the cache's approximation of semantic transparency.

+

+   A client MAY also specify that it will accept stale responses, up to

+   some maximum amount of staleness. This loosens the constraints on the

+   caches, and so might violate the origin server's specified

+   constraints on semantic transparency, but might be necessary to

+   support disconnected operation, or high availability in the face of

+   poor connectivity.

+

+13.2 Expiration Model

+

+13.2.1 Server-Specified Expiration

+

+   HTTP caching works best when caches can entirely avoid making

+   requests to the origin server. The primary mechanism for avoiding

+   requests is for an origin server to provide an explicit expiration

+   time in the future, indicating that a response MAY be used to satisfy

+   subsequent requests. In other words, a cache can return a fresh

+   response without first contacting the server.

+

+   Our expectation is that servers will assign future explicit

+   expiration times to responses in the belief that the entity is not

+   likely to change, in a semantically significant way, before the

+   expiration time is reached. This normally preserves semantic

+   transparency, as long as the server's expiration times are carefully

+   chosen.

+

+   The expiration mechanism applies only to responses taken from a cache

+   and not to first-hand responses forwarded immediately to the

+   requesting client.

+

+   If an origin server wishes to force a semantically transparent cache

+   to validate every request, it MAY assign an explicit expiration time

+   in the past. This means that the response is always stale, and so the

+   cache SHOULD validate it before using it for subsequent requests. See

+   section 14.9.4 for a more restrictive way to force revalidation.

+

+   If an origin server wishes to force any HTTP/1.1 cache, no matter how

+   it is configured, to validate every request, it SHOULD use the "must-

+   revalidate" cache-control directive (see section 14.9).

+

+   Servers specify explicit expiration times using either the Expires

+   header, or the max-age directive of the Cache-Control header.

+

+   An expiration time cannot be used to force a user agent to refresh

+   its display or reload a resource; its semantics apply only to caching

+   mechanisms, and such mechanisms need only check a resource's

+   expiration status when a new request for that resource is initiated.

+   See section 13.13 for an explanation of the difference between caches

+   and history mechanisms.

+

+13.2.2 Heuristic Expiration

+

+   Since origin servers do not always provide explicit expiration times,

+   HTTP caches typically assign heuristic expiration times, employing

+   algorithms that use other header values (such as the Last-Modified

+   time) to estimate a plausible expiration time. The HTTP/1.1

+   specification does not provide specific algorithms, but does impose

+   worst-case constraints on their results. Since heuristic expiration

+   times might compromise semantic transparency, they ought to used

+   cautiously, and we encourage origin servers to provide explicit

+   expiration times as much as possible.

+

+13.2.3 Age Calculations

+

+   In order to know if a cached entry is fresh, a cache needs to know if

+   its age exceeds its freshness lifetime. We discuss how to calculate

+   the latter in section 13.2.4; this section describes how to calculate

+   the age of a response or cache entry.

+

+   In this discussion, we use the term "now" to mean "the current value

+   of the clock at the host performing the calculation." Hosts that use

+   HTTP, but especially hosts running origin servers and caches, SHOULD

+   use NTP [28] or some similar protocol to synchronize their clocks to

+   a globally accurate time standard.

+

+   HTTP/1.1 requires origin servers to send a Date header, if possible,

+   with every response, giving the time at which the response was

+   generated (see section 14.18). We use the term "date_value" to denote

+   the value of the Date header, in a form appropriate for arithmetic

+   operations.

+

+   HTTP/1.1 uses the Age response-header to convey the estimated age of

+   the response message when obtained from a cache. The Age field value

+   is the cache's estimate of the amount of time since the response was

+   generated or revalidated by the origin server.

+

+   In essence, the Age value is the sum of the time that the response

+   has been resident in each of the caches along the path from the

+   origin server, plus the amount of time it has been in transit along

+   network paths.

+

+   We use the term "age_value" to denote the value of the Age header, in

+   a form appropriate for arithmetic operations.

+

+   A response's age can be calculated in two entirely independent ways:

+

+      1. now minus date_value, if the local clock is reasonably well

+         synchronized to the origin server's clock. If the result is

+         negative, the result is replaced by zero.

+

+      2. age_value, if all of the caches along the response path

+         implement HTTP/1.1.

+

+   Given that we have two independent ways to compute the age of a

+   response when it is received, we can combine these as

+

+       corrected_received_age = max(now - date_value, age_value)

+

+   and as long as we have either nearly synchronized clocks or all-

+   HTTP/1.1 paths, one gets a reliable (conservative) result.

+

+   Because of network-imposed delays, some significant interval might

+   pass between the time that a server generates a response and the time

+   it is received at the next outbound cache or client. If uncorrected,

+   this delay could result in improperly low ages.

+

+   Because the request that resulted in the returned Age value must have

+   been initiated prior to that Age value's generation, we can correct

+   for delays imposed by the network by recording the time at which the

+   request was initiated. Then, when an Age value is received, it MUST

+   be interpreted relative to the time the request was initiated, not

+

+   the time that the response was received. This algorithm results in

+   conservative behavior no matter how much delay is experienced. So, we

+   compute:

+

+      corrected_initial_age = corrected_received_age

+                            + (now - request_time)

+

+   where "request_time" is the time (according to the local clock) when

+   the request that elicited this response was sent.

+

+   Summary of age calculation algorithm, when a cache receives a

+   response:

+

+      /*

+       * age_value

+       *      is the value of Age: header received by the cache with

+       *              this response.

+       * date_value

+       *      is the value of the origin server's Date: header

+       * request_time

+       *      is the (local) time when the cache made the request

+       *              that resulted in this cached response

+       * response_time

+       *      is the (local) time when the cache received the

+       *              response

+       * now

+       *      is the current (local) time

+       */

+

+      apparent_age = max(0, response_time - date_value);

+      corrected_received_age = max(apparent_age, age_value);

+      response_delay = response_time - request_time;

+      corrected_initial_age = corrected_received_age + response_delay;

+      resident_time = now - response_time;

+      current_age   = corrected_initial_age + resident_time;

+

+   The current_age of a cache entry is calculated by adding the amount

+   of time (in seconds) since the cache entry was last validated by the

+   origin server to the corrected_initial_age. When a response is

+   generated from a cache entry, the cache MUST include a single Age

+   header field in the response with a value equal to the cache entry's

+   current_age.

+

+   The presence of an Age header field in a response implies that a

+   response is not first-hand. However, the converse is not true, since

+   the lack of an Age header field in a response does not imply that the

+

+   response is first-hand unless all caches along the request path are

+   compliant with HTTP/1.1 (i.e., older HTTP caches did not implement

+   the Age header field).

+

+13.2.4 Expiration Calculations

+

+   In order to decide whether a response is fresh or stale, we need to

+   compare its freshness lifetime to its age. The age is calculated as

+   described in section 13.2.3; this section describes how to calculate

+   the freshness lifetime, and to determine if a response has expired.

+   In the discussion below, the values can be represented in any form

+   appropriate for arithmetic operations.

+

+   We use the term "expires_value" to denote the value of the Expires

+   header. We use the term "max_age_value" to denote an appropriate

+   value of the number of seconds carried by the "max-age" directive of

+   the Cache-Control header in a response (see section 14.9.3).

+

+   The max-age directive takes priority over Expires, so if max-age is

+   present in a response, the calculation is simply:

+

+      freshness_lifetime = max_age_value

+

+   Otherwise, if Expires is present in the response, the calculation is:

+

+      freshness_lifetime = expires_value - date_value

+

+   Note that neither of these calculations is vulnerable to clock skew,

+   since all of the information comes from the origin server.

+

+   If none of Expires, Cache-Control: max-age, or Cache-Control: s-

+   maxage (see section 14.9.3) appears in the response, and the response

+   does not include other restrictions on caching, the cache MAY compute

+   a freshness lifetime using a heuristic. The cache MUST attach Warning

+   113 to any response whose age is more than 24 hours if such warning

+   has not already been added.

+

+   Also, if the response does have a Last-Modified time, the heuristic

+   expiration value SHOULD be no more than some fraction of the interval

+   since that time. A typical setting of this fraction might be 10%.

+

+   The calculation to determine if a response has expired is quite

+   simple:

+

+      response_is_fresh = (freshness_lifetime &gt; current_age)

+

+13.2.5 Disambiguating Expiration Values

+

+   Because expiration values are assigned optimistically, it is possible

+   for two caches to contain fresh values for the same resource that are

+   different.

+

+   If a client performing a retrieval receives a non-first-hand response

+   for a request that was already fresh in its own cache, and the Date

+   header in its existing cache entry is newer than the Date on the new

+   response, then the client MAY ignore the response. If so, it MAY

+   retry the request with a "Cache-Control: max-age=0" directive (see

+   section 14.9), to force a check with the origin server.

+

+   If a cache has two fresh responses for the same representation with

+   different validators, it MUST use the one with the more recent Date

+   header. This situation might arise because the cache is pooling

+   responses from other caches, or because a client has asked for a

+   reload or a revalidation of an apparently fresh cache entry.

+

+13.2.6 Disambiguating Multiple Responses

+

+   Because a client might be receiving responses via multiple paths, so

+   that some responses flow through one set of caches and other

+   responses flow through a different set of caches, a client might

+   receive responses in an order different from that in which the origin

+   server sent them. We would like the client to use the most recently

+   generated response, even if older responses are still apparently

+   fresh.

+

+   Neither the entity tag nor the expiration value can impose an

+   ordering on responses, since it is possible that a later response

+   intentionally carries an earlier expiration time. The Date values are

+   ordered to a granularity of one second.

+

+   When a client tries to revalidate a cache entry, and the response it

+   receives contains a Date header that appears to be older than the one

+   for the existing entry, then the client SHOULD repeat the request

+   unconditionally, and include

+

+       Cache-Control: max-age=0

+

+   to force any intermediate caches to validate their copies directly

+   with the origin server, or

+

+       Cache-Control: no-cache

+

+   to force any intermediate caches to obtain a new copy from the origin

+   server.

+

+   If the Date values are equal, then the client MAY use either response

+   (or MAY, if it is being extremely prudent, request a new response).

+   Servers MUST NOT depend on clients being able to choose

+   deterministically between responses generated during the same second,

+   if their expiration times overlap.

+

+13.3 Validation Model

+

+   When a cache has a stale entry that it would like to use as a

+   response to a client's request, it first has to check with the origin

+   server (or possibly an intermediate cache with a fresh response) to

+   see if its cached entry is still usable. We call this "validating"

+   the cache entry. Since we do not want to have to pay the overhead of

+   retransmitting the full response if the cached entry is good, and we

+   do not want to pay the overhead of an extra round trip if the cached

+   entry is invalid, the HTTP/1.1 protocol supports the use of

+   conditional methods.

+

+   The key protocol features for supporting conditional methods are

+   those concerned with "cache validators." When an origin server

+   generates a full response, it attaches some sort of validator to it,

+   which is kept with the cache entry. When a client (user agent or

+   proxy cache) makes a conditional request for a resource for which it

+   has a cache entry, it includes the associated validator in the

+   request.

+

+   The server then checks that validator against the current validator

+   for the entity, and, if they match (see section 13.3.3), it responds

+   with a special status code (usually, 304 (Not Modified)) and no

+   entity-body. Otherwise, it returns a full response (including

+   entity-body). Thus, we avoid transmitting the full response if the

+   validator matches, and we avoid an extra round trip if it does not

+   match.

+

+   In HTTP/1.1, a conditional request looks exactly the same as a normal

+   request for the same resource, except that it carries a special

+   header (which includes the validator) that implicitly turns the

+   method (usually, GET) into a conditional.

+

+   The protocol includes both positive and negative senses of cache-

+   validating conditions. That is, it is possible to request either that

+   a method be performed if and only if a validator matches or if and

+   only if no validators match.

+

+      Note: a response that lacks a validator may still be cached, and

+      served from cache until it expires, unless this is explicitly

+      prohibited by a cache-control directive. However, a cache cannot

+      do a conditional retrieval if it does not have a validator for the

+      entity, which means it will not be refreshable after it expires.

+

+13.3.1 Last-Modified Dates

+

+   The Last-Modified entity-header field value is often used as a cache

+   validator. In simple terms, a cache entry is considered to be valid

+   if the entity has not been modified since the Last-Modified value.

+

+13.3.2 Entity Tag Cache Validators

+

+   The ETag response-header field value, an entity tag, provides for an

+   "opaque" cache validator. This might allow more reliable validation

+   in situations where it is inconvenient to store modification dates,

+   where the one-second resolution of HTTP date values is not

+   sufficient, or where the origin server wishes to avoid certain

+   paradoxes that might arise from the use of modification dates.

+

+   Entity Tags are described in section 3.11. The headers used with

+   entity tags are described in sections 14.19, 14.24, 14.26 and 14.44.

+

+13.3.3 Weak and Strong Validators

+

+   Since both origin servers and caches will compare two validators to

+   decide if they represent the same or different entities, one normally

+   would expect that if the entity (the entity-body or any entity-

+   headers) changes in any way, then the associated validator would

+   change as well. If this is true, then we call this validator a

+   "strong validator."

+

+   However, there might be cases when a server prefers to change the

+   validator only on semantically significant changes, and not when

+   insignificant aspects of the entity change. A validator that does not

+   always change when the resource changes is a "weak validator."

+

+   Entity tags are normally "strong validators," but the protocol

+   provides a mechanism to tag an entity tag as "weak." One can think of

+   a strong validator as one that changes whenever the bits of an entity

+   changes, while a weak value changes whenever the meaning of an entity

+   changes. Alternatively, one can think of a strong validator as part

+   of an identifier for a specific entity, while a weak validator is

+   part of an identifier for a set of semantically equivalent entities.

+

+      Note: One example of a strong validator is an integer that is

+      incremented in stable storage every time an entity is changed.

+

+      An entity's modification time, if represented with one-second

+      resolution, could be a weak validator, since it is possible that

+      the resource might be modified twice during a single second.

+

+      Support for weak validators is optional. However, weak validators

+      allow for more efficient caching of equivalent objects; for

+      example, a hit counter on a site is probably good enough if it is

+      updated every few days or weeks, and any value during that period

+      is likely "good enough" to be equivalent.

+

+   A "use" of a validator is either when a client generates a request

+   and includes the validator in a validating header field, or when a

+   server compares two validators.

+

+   Strong validators are usable in any context. Weak validators are only

+   usable in contexts that do not depend on exact equality of an entity.

+   For example, either kind is usable for a conditional GET of a full

+   entity. However, only a strong validator is usable for a sub-range

+   retrieval, since otherwise the client might end up with an internally

+   inconsistent entity.

+

+   Clients MAY issue simple (non-subrange) GET requests with either weak

+   validators or strong validators. Clients MUST NOT use weak validators

+   in other forms of request.

+

+   The only function that the HTTP/1.1 protocol defines on validators is

+   comparison. There are two validator comparison functions, depending

+   on whether the comparison context allows the use of weak validators

+   or not:

+

+      - The strong comparison function: in order to be considered equal,

+        both validators MUST be identical in every way, and both MUST

+        NOT be weak.

+

+      - The weak comparison function: in order to be considered equal,

+        both validators MUST be identical in every way, but either or

+        both of them MAY be tagged as "weak" without affecting the

+        result.

+

+   An entity tag is strong unless it is explicitly tagged as weak.

+   Section 3.11 gives the syntax for entity tags.

+

+   A Last-Modified time, when used as a validator in a request, is

+   implicitly weak unless it is possible to deduce that it is strong,

+   using the following rules:

+

+      - The validator is being compared by an origin server to the

+        actual current validator for the entity and,

+

+      - That origin server reliably knows that the associated entity did

+        not change twice during the second covered by the presented

+        validator.

+

+   or

+

+      - The validator is about to be used by a client in an If-

+        Modified-Since or If-Unmodified-Since header, because the client

+        has a cache entry for the associated entity, and

+

+      - That cache entry includes a Date value, which gives the time

+        when the origin server sent the original response, and

+

+      - The presented Last-Modified time is at least 60 seconds before

+        the Date value.

+

+   or

+

+      - The validator is being compared by an intermediate cache to the

+        validator stored in its cache entry for the entity, and

+

+      - That cache entry includes a Date value, which gives the time

+        when the origin server sent the original response, and

+

+      - The presented Last-Modified time is at least 60 seconds before

+        the Date value.

+

+   This method relies on the fact that if two different responses were

+   sent by the origin server during the same second, but both had the

+   same Last-Modified time, then at least one of those responses would

+   have a Date value equal to its Last-Modified time. The arbitrary 60-

+   second limit guards against the possibility that the Date and Last-

+   Modified values are generated from different clocks, or at somewhat

+   different times during the preparation of the response. An

+   implementation MAY use a value larger than 60 seconds, if it is

+   believed that 60 seconds is too short.

+

+   If a client wishes to perform a sub-range retrieval on a value for

+   which it has only a Last-Modified time and no opaque validator, it

+   MAY do this only if the Last-Modified time is strong in the sense

+   described here.

+

+   A cache or origin server receiving a conditional request, other than

+   a full-body GET request, MUST use the strong comparison function to

+   evaluate the condition.

+

+   These rules allow HTTP/1.1 caches and clients to safely perform sub-

+   range retrievals on values that have been obtained from HTTP/1.0

+

+   servers.

+

+13.3.4 Rules for When to Use Entity Tags and Last-Modified Dates

+

+   We adopt a set of rules and recommendations for origin servers,

+   clients, and caches regarding when various validator types ought to

+   be used, and for what purposes.

+

+   HTTP/1.1 origin servers:

+

+      - SHOULD send an entity tag validator unless it is not feasible to

+        generate one.

+

+      - MAY send a weak entity tag instead of a strong entity tag, if

+        performance considerations support the use of weak entity tags,

+        or if it is unfeasible to send a strong entity tag.

+

+      - SHOULD send a Last-Modified value if it is feasible to send one,

+        unless the risk of a breakdown in semantic transparency that

+        could result from using this date in an If-Modified-Since header

+        would lead to serious problems.

+

+   In other words, the preferred behavior for an HTTP/1.1 origin server

+   is to send both a strong entity tag and a Last-Modified value.

+

+   In order to be legal, a strong entity tag MUST change whenever the

+   associated entity value changes in any way. A weak entity tag SHOULD

+   change whenever the associated entity changes in a semantically

+   significant way.

+

+      Note: in order to provide semantically transparent caching, an

+      origin server must avoid reusing a specific strong entity tag

+      value for two different entities, or reusing a specific weak

+      entity tag value for two semantically different entities. Cache

+      entries might persist for arbitrarily long periods, regardless of

+      expiration times, so it might be inappropriate to expect that a

+      cache will never again attempt to validate an entry using a

+      validator that it obtained at some point in the past.

+

+   HTTP/1.1 clients:

+

+      - If an entity tag has been provided by the origin server, MUST

+        use that entity tag in any cache-conditional request (using If-

+        Match or If-None-Match).

+

+      - If only a Last-Modified value has been provided by the origin

+        server, SHOULD use that value in non-subrange cache-conditional

+        requests (using If-Modified-Since).

+

+      - If only a Last-Modified value has been provided by an HTTP/1.0

+        origin server, MAY use that value in subrange cache-conditional

+        requests (using If-Unmodified-Since:). The user agent SHOULD

+        provide a way to disable this, in case of difficulty.

+

+      - If both an entity tag and a Last-Modified value have been

+        provided by the origin server, SHOULD use both validators in

+        cache-conditional requests. This allows both HTTP/1.0 and

+        HTTP/1.1 caches to respond appropriately.

+

+   An HTTP/1.1 origin server, upon receiving a conditional request that

+   includes both a Last-Modified date (e.g., in an If-Modified-Since or

+   If-Unmodified-Since header field) and one or more entity tags (e.g.,

+   in an If-Match, If-None-Match, or If-Range header field) as cache

+   validators, MUST NOT return a response status of 304 (Not Modified)

+   unless doing so is consistent with all of the conditional header

+   fields in the request.

+

+   An HTTP/1.1 caching proxy, upon receiving a conditional request that

+   includes both a Last-Modified date and one or more entity tags as

+   cache validators, MUST NOT return a locally cached response to the

+   client unless that cached response is consistent with all of the

+   conditional header fields in the request.

+

+      Note: The general principle behind these rules is that HTTP/1.1

+      servers and clients should transmit as much non-redundant

+      information as is available in their responses and requests.

+      HTTP/1.1 systems receiving this information will make the most

+      conservative assumptions about the validators they receive.

+

+      HTTP/1.0 clients and caches will ignore entity tags. Generally,

+      last-modified values received or used by these systems will

+      support transparent and efficient caching, and so HTTP/1.1 origin

+      servers should provide Last-Modified values. In those rare cases

+      where the use of a Last-Modified value as a validator by an

+      HTTP/1.0 system could result in a serious problem, then HTTP/1.1

+      origin servers should not provide one.

+

+13.3.5 Non-validating Conditionals

+

+   The principle behind entity tags is that only the service author

+   knows the semantics of a resource well enough to select an

+   appropriate cache validation mechanism, and the specification of any

+   validator comparison function more complex than byte-equality would

+   open up a can of worms. Thus, comparisons of any other headers

+   (except Last-Modified, for compatibility with HTTP/1.0) are never

+   used for purposes of validating a cache entry.

+

+13.4 Response Cacheability

+

+   Unless specifically constrained by a cache-control (section 14.9)

+   directive, a caching system MAY always store a successful response

+   (see section 13.8) as a cache entry, MAY return it without validation

+   if it is fresh, and MAY return it after successful validation. If

+   there is neither a cache validator nor an explicit expiration time

+   associated with a response, we do not expect it to be cached, but

+   certain caches MAY violate this expectation (for example, when little

+   or no network connectivity is available). A client can usually detect

+   that such a response was taken from a cache by comparing the Date

+   header to the current time.

+

+      Note: some HTTP/1.0 caches are known to violate this expectation

+      without providing any Warning.

+

+   However, in some cases it might be inappropriate for a cache to

+   retain an entity, or to return it in response to a subsequent

+   request. This might be because absolute semantic transparency is

+   deemed necessary by the service author, or because of security or

+   privacy considerations. Certain cache-control directives are

+   therefore provided so that the server can indicate that certain

+   resource entities, or portions thereof, are not to be cached

+   regardless of other considerations.

+

+   Note that section 14.8 normally prevents a shared cache from saving

+   and returning a response to a previous request if that request

+   included an Authorization header.

+

+   A response received with a status code of 200, 203, 206, 300, 301 or

+   410 MAY be stored by a cache and used in reply to a subsequent

+   request, subject to the expiration mechanism, unless a cache-control

+   directive prohibits caching. However, a cache that does not support

+   the Range and Content-Range headers MUST NOT cache 206 (Partial

+   Content) responses.

+

+   A response received with any other status code (e.g. status codes 302

+   and 307) MUST NOT be returned in a reply to a subsequent request

+   unless there are cache-control directives or another header(s) that

+   explicitly allow it. For example, these include the following: an

+   Expires header (section 14.21); a "max-age", "s-maxage",  "must-

+   revalidate", "proxy-revalidate", "public" or "private" cache-control

+   directive (section 14.9).

+

+13.5 Constructing Responses From Caches

+

+   The purpose of an HTTP cache is to store information received in

+   response to requests for use in responding to future requests. In

+   many cases, a cache simply returns the appropriate parts of a

+   response to the requester. However, if the cache holds a cache entry

+   based on a previous response, it might have to combine parts of a new

+   response with what is held in the cache entry.

+

+13.5.1 End-to-end and Hop-by-hop Headers

+

+   For the purpose of defining the behavior of caches and non-caching

+   proxies, we divide HTTP headers into two categories:

+

+      - End-to-end headers, which are  transmitted to the ultimate

+        recipient of a request or response. End-to-end headers in

+        responses MUST be stored as part of a cache entry and MUST be

+        transmitted in any response formed from a cache entry.

+

+      - Hop-by-hop headers, which are meaningful only for a single

+        transport-level connection, and are not stored by caches or

+        forwarded by proxies.

+

+   The following HTTP/1.1 headers are hop-by-hop headers:

+

+      - Connection

+      - Keep-Alive

+      - Proxy-Authenticate

+      - Proxy-Authorization

+      - TE

+      - Trailers

+      - Transfer-Encoding

+      - Upgrade

+

+   All other headers defined by HTTP/1.1 are end-to-end headers.

+

+   Other hop-by-hop headers MUST be listed in a Connection header,

+   (section 14.10) to be introduced into HTTP/1.1 (or later).

+

+13.5.2 Non-modifiable Headers

+

+   Some features of the HTTP/1.1 protocol, such as Digest

+   Authentication, depend on the value of certain end-to-end headers. A

+   transparent proxy SHOULD NOT modify an end-to-end header unless the

+   definition of that header requires or specifically allows that.

+

+   A transparent proxy MUST NOT modify any of the following fields in a

+   request or response, and it MUST NOT add any of these fields if not

+   already present:

+

+      - Content-Location

+

+      - Content-MD5

+

+      - ETag

+

+      - Last-Modified

+

+   A transparent proxy MUST NOT modify any of the following fields in a

+   response:

+

+      - Expires

+

+   but it MAY add any of these fields if not already present. If an

+   Expires header is added, it MUST be given a field-value identical to

+   that of the Date header in that response.

+

+   A  proxy MUST NOT modify or add any of the following fields in a

+   message that contains the no-transform cache-control directive, or in

+   any request:

+

+      - Content-Encoding

+

+      - Content-Range

+

+      - Content-Type

+

+   A non-transparent proxy MAY modify or add these fields to a message

+   that does not include no-transform, but if it does so, it MUST add a

+   Warning 214 (Transformation applied) if one does not already appear

+   in the message (see section 14.46).

+

+      Warning: unnecessary modification of end-to-end headers might

+      cause authentication failures if stronger authentication

+      mechanisms are introduced in later versions of HTTP. Such

+      authentication mechanisms MAY rely on the values of header fields

+      not listed here.

+

+   The Content-Length field of a request or response is added or deleted

+   according to the rules in section 4.4. A transparent proxy MUST

+   preserve the entity-length (section 7.2.2) of the entity-body,

+   although it MAY change the transfer-length (section 4.4).

+

+13.5.3 Combining Headers

+

+   When a cache makes a validating request to a server, and the server

+   provides a 304 (Not Modified) response or a 206 (Partial Content)

+   response, the cache then constructs a response to send to the

+   requesting client.

+

+   If the status code is 304 (Not Modified), the cache uses the entity-

+   body stored in the cache entry as the entity-body of this outgoing

+   response. If the status code is 206 (Partial Content) and the ETag or

+   Last-Modified headers match exactly, the cache MAY combine the

+   contents stored in the cache entry with the new contents received in

+   the response and use the result as the entity-body of this outgoing

+   response, (see 13.5.4).

+

+   The end-to-end headers stored in the cache entry are used for the

+   constructed response, except that

+

+      - any stored Warning headers with warn-code 1xx (see section

+        14.46) MUST be deleted from the cache entry and the forwarded

+        response.

+

+      - any stored Warning headers with warn-code 2xx MUST be retained

+        in the cache entry and the forwarded response.

+

+      - any end-to-end headers provided in the 304 or 206 response MUST

+        replace the corresponding headers from the cache entry.

+

+   Unless the cache decides to remove the cache entry, it MUST also

+   replace the end-to-end headers stored with the cache entry with

+   corresponding headers received in the incoming response, except for

+   Warning headers as described immediately above. If a header field-

+   name in the incoming response matches more than one header in the

+   cache entry, all such old headers MUST be replaced.

+

+   In other words, the set of end-to-end headers received in the

+   incoming response overrides all corresponding end-to-end headers

+   stored with the cache entry (except for stored Warning headers with

+   warn-code 1xx, which are deleted even if not overridden).

+

+      Note: this rule allows an origin server to use a 304 (Not

+      Modified) or a 206 (Partial Content) response to update any header

+      associated with a previous response for the same entity or sub-

+      ranges thereof, although it might not always be meaningful or

+      correct to do so. This rule does not allow an origin server to use

+      a 304 (Not Modified) or a 206 (Partial Content) response to

+      entirely delete a header that it had provided with a previous

+      response.

+

+13.5.4 Combining Byte Ranges

+

+   A response might transfer only a subrange of the bytes of an entity-

+   body, either because the request included one or more Range

+   specifications, or because a connection was broken prematurely. After

+   several such transfers, a cache might have received several ranges of

+   the same entity-body.

+

+   If a cache has a stored non-empty set of subranges for an entity, and

+   an incoming response transfers another subrange, the cache MAY

+   combine the new subrange with the existing set if both the following

+   conditions are met:

+

+      - Both the incoming response and the cache entry have a cache

+        validator.

+

+      - The two cache validators match using the strong comparison

+        function (see section 13.3.3).

+

+   If either requirement is not met, the cache MUST use only the most

+   recent partial response (based on the Date values transmitted with

+   every response, and using the incoming response if these values are

+   equal or missing), and MUST discard the other partial information.

+

+13.6 Caching Negotiated Responses

+

+   Use of server-driven content negotiation (section 12.1), as indicated

+   by the presence of a Vary header field in a response, alters the

+   conditions and procedure by which a cache can use the response for

+   subsequent requests. See section 14.44 for use of the Vary header

+   field by servers.

+

+   A server SHOULD use the Vary header field to inform a cache of what

+   request-header fields were used to select among multiple

+   representations of a cacheable response subject to server-driven

+   negotiation. The set of header fields named by the Vary field value

+   is known as the "selecting" request-headers.

+

+   When the cache receives a subsequent request whose Request-URI

+   specifies one or more cache entries including a Vary header field,

+   the cache MUST NOT use such a cache entry to construct a response to

+   the new request unless all of the selecting request-headers present

+   in the new request match the corresponding stored request-headers in

+   the original request.

+

+   The selecting request-headers from two requests are defined to match

+   if and only if the selecting request-headers in the first request can

+   be transformed to the selecting request-headers in the second request

+

+   by adding or removing linear white space (LWS) at places where this

+   is allowed by the corresponding BNF, and/or combining multiple

+   message-header fields with the same field name following the rules

+   about message headers in section 4.2.

+

+   A Vary header field-value of "*" always fails to match and subsequent

+   requests on that resource can only be properly interpreted by the

+   origin server.

+

+   If the selecting request header fields for the cached entry do not

+   match the selecting request header fields of the new request, then

+   the cache MUST NOT use a cached entry to satisfy the request unless

+   it first relays the new request to the origin server in a conditional

+   request and the server responds with 304 (Not Modified), including an

+   entity tag or Content-Location that indicates the entity to be used.

+

+   If an entity tag was assigned to a cached representation, the

+   forwarded request SHOULD be conditional and include the entity tags

+   in an If-None-Match header field from all its cache entries for the

+   resource. This conveys to the server the set of entities currently

+   held by the cache, so that if any one of these entities matches the

+   requested entity, the server can use the ETag header field in its 304

+   (Not Modified) response to tell the cache which entry is appropriate.

+   If the entity-tag of the new response matches that of an existing

+   entry, the new response SHOULD be used to update the header fields of

+   the existing entry, and the result MUST be returned to the client.

+

+   If any of the existing cache entries contains only partial content

+   for the associated entity, its entity-tag SHOULD NOT be included in

+   the If-None-Match header field unless the request is for a range that

+   would be fully satisfied by that entry.

+

+   If a cache receives a successful response whose Content-Location

+   field matches that of an existing cache entry for the same Request-

+   ]URI, whose entity-tag differs from that of the existing entry, and

+   whose Date is more recent than that of the existing entry, the

+   existing entry SHOULD NOT be returned in response to future requests

+   and SHOULD be deleted from the cache.

+

+13.7 Shared and Non-Shared Caches

+

+   For reasons of security and privacy, it is necessary to make a

+   distinction between "shared" and "non-shared" caches. A non-shared

+   cache is one that is accessible only to a single user. Accessibility

+   in this case SHOULD be enforced by appropriate security mechanisms.

+   All other caches are considered to be "shared." Other sections of

+

+   this specification place certain constraints on the operation of

+   shared caches in order to prevent loss of privacy or failure of

+   access controls.

+

+13.8 Errors or Incomplete Response Cache Behavior

+

+   A cache that receives an incomplete response (for example, with fewer

+   bytes of data than specified in a Content-Length header) MAY store

+   the response. However, the cache MUST treat this as a partial

+   response. Partial responses MAY be combined as described in section

+   13.5.4; the result might be a full response or might still be

+   partial. A cache MUST NOT return a partial response to a client

+   without explicitly marking it as such, using the 206 (Partial

+   Content) status code. A cache MUST NOT return a partial response

+   using a status code of 200 (OK).

+

+   If a cache receives a 5xx response while attempting to revalidate an

+   entry, it MAY either forward this response to the requesting client,

+   or act as if the server failed to respond. In the latter case, it MAY

+   return a previously received response unless the cached entry

+   includes the "must-revalidate" cache-control directive (see section

+   14.9).

+

+13.9 Side Effects of GET and HEAD

+

+   Unless the origin server explicitly prohibits the caching of their

+   responses, the application of GET and HEAD methods to any resources

+   SHOULD NOT have side effects that would lead to erroneous behavior if

+   these responses are taken from a cache. They MAY still have side

+   effects, but a cache is not required to consider such side effects in

+   its caching decisions. Caches are always expected to observe an

+   origin server's explicit restrictions on caching.

+

+   We note one exception to this rule: since some applications have

+   traditionally used GETs and HEADs with query URLs (those containing a

+   "?" in the rel_path part) to perform operations with significant side

+   effects, caches MUST NOT treat responses to such URIs as fresh unless

+   the server provides an explicit expiration time. This specifically

+   means that responses from HTTP/1.0 servers for such URIs SHOULD NOT

+   be taken from a cache. See section 9.1.1 for related information.

+

+13.10 Invalidation After Updates or Deletions

+

+   The effect of certain methods performed on a resource at the origin

+   server might cause one or more existing cache entries to become non-

+   transparently invalid. That is, although they might continue to be

+   "fresh," they do not accurately reflect what the origin server would

+   return for a new request on that resource.

+

+   There is no way for the HTTP protocol to guarantee that all such

+   cache entries are marked invalid. For example, the request that

+   caused the change at the origin server might not have gone through

+   the proxy where a cache entry is stored. However, several rules help

+   reduce the likelihood of erroneous behavior.

+

+   In this section, the phrase "invalidate an entity" means that the

+   cache will either remove all instances of that entity from its

+   storage, or will mark these as "invalid" and in need of a mandatory

+   revalidation before they can be returned in response to a subsequent

+   request.

+

+   Some HTTP methods MUST cause a cache to invalidate an entity. This is

+   either the entity referred to by the Request-URI, or by the Location

+   or Content-Location headers (if present). These methods are:

+

+      - PUT

+

+      - DELETE

+

+      - POST

+

+   In order to prevent denial of service attacks, an invalidation based

+   on the URI in a Location or Content-Location header MUST only be

+   performed if the host part is the same as in the Request-URI.

+

+   A cache that passes through requests for methods it does not

+   understand SHOULD invalidate any entities referred to by the

+   Request-URI.

+

+13.11 Write-Through Mandatory

+

+   All methods that might be expected to cause modifications to the

+   origin server's resources MUST be written through to the origin

+   server. This currently includes all methods except for GET and HEAD.

+   A cache MUST NOT reply to such a request from a client before having

+   transmitted the request to the inbound server, and having received a

+   corresponding response from the inbound server. This does not prevent

+   a proxy cache from sending a 100 (Continue) response before the

+   inbound server has sent its final reply.

+

+   The alternative (known as "write-back" or "copy-back" caching) is not

+   allowed in HTTP/1.1, due to the difficulty of providing consistent

+   updates and the problems arising from server, cache, or network

+   failure prior to write-back.

+

+13.12 Cache Replacement

+

+   If a new cacheable (see sections 14.9.2, 13.2.5, 13.2.6 and 13.8)

+   response is received from a resource while any existing responses for

+   the same resource are cached, the cache SHOULD use the new response

+   to reply to the current request. It MAY insert it into cache storage

+   and MAY, if it meets all other requirements, use it to respond to any

+   future requests that would previously have caused the old response to

+   be returned. If it inserts the new response into cache storage  the

+   rules in section 13.5.3 apply.

+

+      Note: a new response that has an older Date header value than

+      existing cached responses is not cacheable.

+

+13.13 History Lists

+

+   User agents often have history mechanisms, such as "Back" buttons and

+   history lists, which can be used to redisplay an entity retrieved

+   earlier in a session.

+

+   History mechanisms and caches are different. In particular history

+   mechanisms SHOULD NOT try to show a semantically transparent view of

+   the current state of a resource. Rather, a history mechanism is meant

+   to show exactly what the user saw at the time when the resource was

+   retrieved.

+

+   By default, an expiration time does not apply to history mechanisms.

+   If the entity is still in storage, a history mechanism SHOULD display

+   it even if the entity has expired, unless the user has specifically

+   configured the agent to refresh expired history documents.

+

+   This is not to be construed to prohibit the history mechanism from

+   telling the user that a view might be stale.

+

+      Note: if history list mechanisms unnecessarily prevent users from

+      viewing stale resources, this will tend to force service authors

+      to avoid using HTTP expiration controls and cache controls when

+      they would otherwise like to. Service authors may consider it

+      important that users not be presented with error messages or

+      warning messages when they use navigation controls (such as BACK)

+      to view previously fetched resources. Even though sometimes such

+      resources ought not to cached, or ought to expire quickly, user

+      interface considerations may force service authors to resort to

+      other means of preventing caching (e.g. "once-only" URLs) in order

+      not to suffer the effects of improperly functioning history

+      mechanisms.

+

+14 Header Field Definitions

+

+   This section defines the syntax and semantics of all standard

+   HTTP/1.1 header fields. For entity-header fields, both sender and

+   recipient refer to either the client or the server, depending on who

+   sends and who receives the entity.

+

+14.1 Accept

+

+   The Accept request-header field can be used to specify certain media

+   types which are acceptable for the response. Accept headers can be

+   used to indicate that the request is specifically limited to a small

+   set of desired types, as in the case of a request for an in-line

+   image.

+

+       Accept         = "Accept" ":"

+                        #( media-range [ accept-params ] )

+

+       media-range    = ( "*/*"

+                        | ( type "/" "*" )

+                        | ( type "/" subtype )

+                        ) *( ";" parameter )

+       accept-params  = ";" "q" "=" qvalue *( accept-extension )

+       accept-extension = ";" token [ "=" ( token | quoted-string ) ]

+

+   The asterisk "*" character is used to group media types into ranges,

+   with "*/*" indicating all media types and "type/*" indicating all

+   subtypes of that type. The media-range MAY include media type

+   parameters that are applicable to that range.

+

+   Each media-range MAY be followed by one or more accept-params,

+   beginning with the "q" parameter for indicating a relative quality

+   factor. The first "q" parameter (if any) separates the media-range

+   parameter(s) from the accept-params. Quality factors allow the user

+   or user agent to indicate the relative degree of preference for that

+   media-range, using the qvalue scale from 0 to 1 (section 3.9). The

+   default value is q=1.

+

+      Note: Use of the "q" parameter name to separate media type

+      parameters from Accept extension parameters is due to historical

+      practice. Although this prevents any media type parameter named

+      "q" from being used with a media range, such an event is believed

+      to be unlikely given the lack of any "q" parameters in the IANA

+      media type registry and the rare usage of any media type

+      parameters in Accept. Future media types are discouraged from

+      registering any parameter named "q".

+

+   The example

+

+       Accept: audio/*; q=0.2, audio/basic

+

+   SHOULD be interpreted as "I prefer audio/basic, but send me any audio

+   type if it is the best available after an 80% mark-down in quality."

+

+   If no Accept header field is present, then it is assumed that the

+   client accepts all media types. If an Accept header field is present,

+   and if the server cannot send a response which is acceptable

+   according to the combined Accept field value, then the server SHOULD

+   send a 406 (not acceptable) response.

+

+   A more elaborate example is

+

+       Accept: text/plain; q=0.5, text/html,

+               text/x-dvi; q=0.8, text/x-c

+

+   Verbally, this would be interpreted as "text/html and text/x-c are

+   the preferred media types, but if they do not exist, then send the

+   text/x-dvi entity, and if that does not exist, send the text/plain

+   entity."

+

+   Media ranges can be overridden by more specific media ranges or

+   specific media types. If more than one media range applies to a given

+   type, the most specific reference has precedence. For example,

+

+       Accept: text/*, text/html, text/html;level=1, */*

+

+   have the following precedence:

+

+       1) text/html;level=1

+       2) text/html

+       3) text/*

+       4) */*

+

+   The media type quality factor associated with a given type is

+   determined by finding the media range with the highest precedence

+   which matches that type. For example,

+

+       Accept: text/*;q=0.3, text/html;q=0.7, text/html;level=1,

+               text/html;level=2;q=0.4, */*;q=0.5

+

+   would cause the following values to be associated:

+

+       text/html;level=1         = 1

+       text/html                 = 0.7

+       text/plain                = 0.3

+

+       image/jpeg                = 0.5

+       text/html;level=2         = 0.4

+       text/html;level=3         = 0.7

+

+      Note: A user agent might be provided with a default set of quality

+      values for certain media ranges. However, unless the user agent is

+      a closed system which cannot interact with other rendering agents,

+      this default set ought to be configurable by the user.

+

+14.2 Accept-Charset

+

+   The Accept-Charset request-header field can be used to indicate what

+   character sets are acceptable for the response. This field allows

+   clients capable of understanding more comprehensive or special-

+   purpose character sets to signal that capability to a server which is

+   capable of representing documents in those character sets.

+

+      Accept-Charset = "Accept-Charset" ":"

+              1#( ( charset | "*" )[ ";" "q" "=" qvalue ] )

+

+   Character set values are described in section 3.4. Each charset MAY

+   be given an associated quality value which represents the user's

+   preference for that charset. The default value is q=1. An example is

+

+      Accept-Charset: iso-8859-5, unicode-1-1;q=0.8

+

+   The special value "*", if present in the Accept-Charset field,

+   matches every character set (including ISO-8859-1) which is not

+   mentioned elsewhere in the Accept-Charset field. If no "*" is present

+   in an Accept-Charset field, then all character sets not explicitly

+   mentioned get a quality value of 0, except for ISO-8859-1, which gets

+   a quality value of 1 if not explicitly mentioned.

+

+   If no Accept-Charset header is present, the default is that any

+   character set is acceptable. If an Accept-Charset header is present,

+   and if the server cannot send a response which is acceptable

+   according to the Accept-Charset header, then the server SHOULD send

+   an error response with the 406 (not acceptable) status code, though

+   the sending of an unacceptable response is also allowed.

+

+14.3 Accept-Encoding

+

+   The Accept-Encoding request-header field is similar to Accept, but

+   restricts the content-codings (section 3.5) that are acceptable in

+   the response.

+

+       Accept-Encoding  = "Accept-Encoding" ":"

+

+                          1#( codings [ ";" "q" "=" qvalue ] )

+       codings          = ( content-coding | "*" )

+

+   Examples of its use are:

+

+       Accept-Encoding: compress, gzip

+       Accept-Encoding:

+       Accept-Encoding: *

+       Accept-Encoding: compress;q=0.5, gzip;q=1.0

+       Accept-Encoding: gzip;q=1.0, identity; q=0.5, *;q=0

+

+   A server tests whether a content-coding is acceptable, according to

+   an Accept-Encoding field, using these rules:

+

+      1. If the content-coding is one of the content-codings listed in

+         the Accept-Encoding field, then it is acceptable, unless it is

+         accompanied by a qvalue of 0. (As defined in section 3.9, a

+         qvalue of 0 means "not acceptable.")

+

+      2. The special "*" symbol in an Accept-Encoding field matches any

+         available content-coding not explicitly listed in the header

+         field.

+

+      3. If multiple content-codings are acceptable, then the acceptable

+         content-coding with the highest non-zero qvalue is preferred.

+

+      4. The "identity" content-coding is always acceptable, unless

+         specifically refused because the Accept-Encoding field includes

+         "identity;q=0", or because the field includes "*;q=0" and does

+         not explicitly include the "identity" content-coding. If the

+         Accept-Encoding field-value is empty, then only the "identity"

+         encoding is acceptable.

+

+   If an Accept-Encoding field is present in a request, and if the

+   server cannot send a response which is acceptable according to the

+   Accept-Encoding header, then the server SHOULD send an error response

+   with the 406 (Not Acceptable) status code.

+

+   If no Accept-Encoding field is present in a request, the server MAY

+   assume that the client will accept any content coding. In this case,

+   if "identity" is one of the available content-codings, then the

+   server SHOULD use the "identity" content-coding, unless it has

+   additional information that a different content-coding is meaningful

+   to the client.

+

+      Note: If the request does not include an Accept-Encoding field,

+      and if the "identity" content-coding is unavailable, then

+      content-codings commonly understood by HTTP/1.0 clients (i.e.,

+

+      "gzip" and "compress") are preferred; some older clients

+      improperly display messages sent with other content-codings.  The

+      server might also make this decision based on information about

+      the particular user-agent or client.

+

+      Note: Most HTTP/1.0 applications do not recognize or obey qvalues

+      associated with content-codings. This means that qvalues will not

+      work and are not permitted with x-gzip or x-compress.

+

+14.4 Accept-Language

+

+   The Accept-Language request-header field is similar to Accept, but

+   restricts the set of natural languages that are preferred as a

+   response to the request. Language tags are defined in section 3.10.

+

+       Accept-Language = "Accept-Language" ":"

+                         1#( language-range [ ";" "q" "=" qvalue ] )

+       language-range  = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )

+

+   Each language-range MAY be given an associated quality value which

+   represents an estimate of the user's preference for the languages

+   specified by that range. The quality value defaults to "q=1". For

+   example,

+

+       Accept-Language: da, en-gb;q=0.8, en;q=0.7

+

+   would mean: "I prefer Danish, but will accept British English and

+   other types of English." A language-range matches a language-tag if

+   it exactly equals the tag, or if it exactly equals a prefix of the

+   tag such that the first tag character following the prefix is "-".

+   The special range "*", if present in the Accept-Language field,

+   matches every tag not matched by any other range present in the

+   Accept-Language field.

+

+      Note: This use of a prefix matching rule does not imply that

+      language tags are assigned to languages in such a way that it is

+      always true that if a user understands a language with a certain

+      tag, then this user will also understand all languages with tags

+      for which this tag is a prefix. The prefix rule simply allows the

+      use of prefix tags if this is the case.

+

+   The language quality factor assigned to a language-tag by the

+   Accept-Language field is the quality value of the longest language-

+   range in the field that matches the language-tag. If no language-

+   range in the field matches the tag, the language quality factor

+   assigned is 0. If no Accept-Language header is present in the

+   request, the server

+

+   SHOULD assume that all languages are equally acceptable. If an

+   Accept-Language header is present, then all languages which are

+   assigned a quality factor greater than 0 are acceptable.

+

+   It might be contrary to the privacy expectations of the user to send

+   an Accept-Language header with the complete linguistic preferences of

+   the user in every request. For a discussion of this issue, see

+   section 15.1.4.

+

+   As intelligibility is highly dependent on the individual user, it is

+   recommended that client applications make the choice of linguistic

+   preference available to the user. If the choice is not made

+   available, then the Accept-Language header field MUST NOT be given in

+   the request.

+

+      Note: When making the choice of linguistic preference available to

+      the user, we remind implementors of  the fact that users are not

+      familiar with the details of language matching as described above,

+      and should provide appropriate guidance. As an example, users

+      might assume that on selecting "en-gb", they will be served any

+      kind of English document if British English is not available. A

+      user agent might suggest in such a case to add "en" to get the

+      best matching behavior.

+

+14.5 Accept-Ranges

+

+      The Accept-Ranges response-header field allows the server to

+      indicate its acceptance of range requests for a resource:

+

+          Accept-Ranges     = "Accept-Ranges" ":" acceptable-ranges

+          acceptable-ranges = 1#range-unit | "none"

+

+      Origin servers that accept byte-range requests MAY send

+

+          Accept-Ranges: bytes

+

+      but are not required to do so. Clients MAY generate byte-range

+      requests without having received this header for the resource

+      involved. Range units are defined in section 3.12.

+

+      Servers that do not accept any kind of range request for a

+      resource MAY send

+

+          Accept-Ranges: none

+

+      to advise the client not to attempt a range request.

+

+14.6 Age

+

+      The Age response-header field conveys the sender's estimate of the

+      amount of time since the response (or its revalidation) was

+      generated at the origin server. A cached response is "fresh" if

+      its age does not exceed its freshness lifetime. Age values are

+      calculated as specified in section 13.2.3.

+

+           Age = "Age" ":" age-value

+           age-value = delta-seconds

+

+      Age values are non-negative decimal integers, representing time in

+      seconds.

+

+      If a cache receives a value larger than the largest positive

+      integer it can represent, or if any of its age calculations

+      overflows, it MUST transmit an Age header with a value of

+      2147483648 (2^31). An HTTP/1.1 server that includes a cache MUST

+      include an Age header field in every response generated from its

+      own cache. Caches SHOULD use an arithmetic type of at least 31

+      bits of range.

+

+14.7 Allow

+

+      The Allow entity-header field lists the set of methods supported

+      by the resource identified by the Request-URI. The purpose of this

+      field is strictly to inform the recipient of valid methods

+      associated with the resource. An Allow header field MUST be

+      present in a 405 (Method Not Allowed) response.

+

+          Allow   = "Allow" ":" #Method

+

+      Example of use:

+

+          Allow: GET, HEAD, PUT

+

+      This field cannot prevent a client from trying other methods.

+      However, the indications given by the Allow header field value

+      SHOULD be followed. The actual set of allowed methods is defined

+      by the origin server at the time of each request.

+

+      The Allow header field MAY be provided with a PUT request to

+      recommend the methods to be supported by the new or modified

+      resource. The server is not required to support these methods and

+      SHOULD include an Allow header in the response giving the actual

+      supported methods.

+

+      A proxy MUST NOT modify the Allow header field even if it does not

+      understand all the methods specified, since the user agent might

+      have other means of communicating with the origin server.

+

+14.8 Authorization

+

+      A user agent that wishes to authenticate itself with a server--

+      usually, but not necessarily, after receiving a 401 response--does

+      so by including an Authorization request-header field with the

+      request.  The Authorization field value consists of credentials

+      containing the authentication information of the user agent for

+      the realm of the resource being requested.

+

+          Authorization  = "Authorization" ":" credentials

+

+      HTTP access authentication is described in "HTTP Authentication:

+      Basic and Digest Access Authentication" [43]. If a request is

+      authenticated and a realm specified, the same credentials SHOULD

+      be valid for all other requests within this realm (assuming that

+      the authentication scheme itself does not require otherwise, such

+      as credentials that vary according to a challenge value or using

+      synchronized clocks).

+

+      When a shared cache (see section 13.7) receives a request

+      containing an Authorization field, it MUST NOT return the

+      corresponding response as a reply to any other request, unless one

+      of the following specific exceptions holds:

+

+      1. If the response includes the "s-maxage" cache-control

+         directive, the cache MAY use that response in replying to a

+         subsequent request. But (if the specified maximum age has

+         passed) a proxy cache MUST first revalidate it with the origin

+         server, using the request-headers from the new request to allow

+         the origin server to authenticate the new request. (This is the

+         defined behavior for s-maxage.) If the response includes "s-

+         maxage=0", the proxy MUST always revalidate it before re-using

+         it.

+

+      2. If the response includes the "must-revalidate" cache-control

+         directive, the cache MAY use that response in replying to a

+         subsequent request. But if the response is stale, all caches

+         MUST first revalidate it with the origin server, using the

+         request-headers from the new request to allow the origin server

+         to authenticate the new request.

+

+      3. If the response includes the "public" cache-control directive,

+         it MAY be returned in reply to any subsequent request.

+

+14.9 Cache-Control

+

+   The Cache-Control general-header field is used to specify directives

+   that MUST be obeyed by all caching mechanisms along the

+   request/response chain. The directives specify behavior intended to

+   prevent caches from adversely interfering with the request or

+   response. These directives typically override the default caching

+   algorithms. Cache directives are unidirectional in that the presence

+   of a directive in a request does not imply that the same directive is

+   to be given in the response.

+

+      Note that HTTP/1.0 caches might not implement Cache-Control and

+      might only implement Pragma: no-cache (see section 14.32).

+

+   Cache directives MUST be passed through by a proxy or gateway

+   application, regardless of their significance to that application,

+   since the directives might be applicable to all recipients along the

+   request/response chain. It is not possible to specify a cache-

+   directive for a specific cache.

+

+    Cache-Control   = "Cache-Control" ":" 1#cache-directive

+

+    cache-directive = cache-request-directive

+         | cache-response-directive

+

+    cache-request-directive =

+           "no-cache"                          ; Section 14.9.1

+         | "no-store"                          ; Section 14.9.2

+         | "max-age" "=" delta-seconds         ; Section 14.9.3, 14.9.4

+         | "max-stale" [ "=" delta-seconds ]   ; Section 14.9.3

+         | "min-fresh" "=" delta-seconds       ; Section 14.9.3

+         | "no-transform"                      ; Section 14.9.5

+         | "only-if-cached"                    ; Section 14.9.4

+         | cache-extension                     ; Section 14.9.6

+

+     cache-response-directive =

+           "public"                               ; Section 14.9.1

+         | "private" [ "=" &lt;"&gt; 1#field-name &lt;"&gt; ] ; Section 14.9.1

+         | "no-cache" [ "=" &lt;"&gt; 1#field-name &lt;"&gt; ]; Section 14.9.1

+         | "no-store"                             ; Section 14.9.2

+         | "no-transform"                         ; Section 14.9.5

+         | "must-revalidate"                      ; Section 14.9.4

+         | "proxy-revalidate"                     ; Section 14.9.4

+         | "max-age" "=" delta-seconds            ; Section 14.9.3

+         | "s-maxage" "=" delta-seconds           ; Section 14.9.3

+         | cache-extension                        ; Section 14.9.6

+

+    cache-extension = token [ "=" ( token | quoted-string ) ]

+

+   When a directive appears without any 1#field-name parameter, the

+   directive applies to the entire request or response. When such a

+   directive appears with a 1#field-name parameter, it applies only to

+   the named field or fields, and not to the rest of the request or

+   response. This mechanism supports extensibility; implementations of

+   future versions of the HTTP protocol might apply these directives to

+   header fields not defined in HTTP/1.1.

+

+   The cache-control directives can be broken down into these general

+   categories:

+

+      - Restrictions on what are cacheable; these may only be imposed by

+        the origin server.

+

+      - Restrictions on what may be stored by a cache; these may be

+        imposed by either the origin server or the user agent.

+

+      - Modifications of the basic expiration mechanism; these may be

+        imposed by either the origin server or the user agent.

+

+      - Controls over cache revalidation and reload; these may only be

+        imposed by a user agent.

+

+      - Control over transformation of entities.

+

+      - Extensions to the caching system.

+

+14.9.1 What is Cacheable

+

+   By default, a response is cacheable if the requirements of the

+   request method, request header fields, and the response status

+   indicate that it is cacheable. Section 13.4 summarizes these defaults

+   for cacheability. The following Cache-Control response directives

+   allow an origin server to override the default cacheability of a

+   response:

+

+   public

+      Indicates that the response MAY be cached by any cache, even if it

+      would normally be non-cacheable or cacheable only within a non-

+      shared cache. (See also Authorization, section 14.8, for

+      additional details.)

+

+   private

+      Indicates that all or part of the response message is intended for

+      a single user and MUST NOT be cached by a shared cache. This

+      allows an origin server to state that the specified parts of the

+

+      response are intended for only one user and are not a valid

+      response for requests by other users. A private (non-shared) cache

+      MAY cache the response.

+

+       Note: This usage of the word private only controls where the

+       response may be cached, and cannot ensure the privacy of the

+       message content.

+

+   no-cache

+       If the no-cache directive does not specify a field-name, then a

+      cache MUST NOT use the response to satisfy a subsequent request

+      without successful revalidation with the origin server. This

+      allows an origin server to prevent caching even by caches that

+      have been configured to return stale responses to client requests.

+

+      If the no-cache directive does specify one or more field-names,

+      then a cache MAY use the response to satisfy a subsequent request,

+      subject to any other restrictions on caching. However, the

+      specified field-name(s) MUST NOT be sent in the response to a

+      subsequent request without successful revalidation with the origin

+      server. This allows an origin server to prevent the re-use of

+      certain header fields in a response, while still allowing caching

+      of the rest of the response.

+

+       Note: Most HTTP/1.0 caches will not recognize or obey this

+       directive.

+

+14.9.2 What May be Stored by Caches

+

+   no-store

+      The purpose of the no-store directive is to prevent the

+      inadvertent release or retention of sensitive information (for

+      example, on backup tapes). The no-store directive applies to the

+      entire message, and MAY be sent either in a response or in a

+      request. If sent in a request, a cache MUST NOT store any part of

+      either this request or any response to it. If sent in a response,

+      a cache MUST NOT store any part of either this response or the

+      request that elicited it. This directive applies to both non-

+      shared and shared caches. "MUST NOT store" in this context means

+      that the cache MUST NOT intentionally store the information in

+      non-volatile storage, and MUST make a best-effort attempt to

+      remove the information from volatile storage as promptly as

+      possible after forwarding it.

+

+      Even when this directive is associated with a response, users

+      might explicitly store such a response outside of the caching

+      system (e.g., with a "Save As" dialog). History buffers MAY store

+      such responses as part of their normal operation.

+

+      The purpose of this directive is to meet the stated requirements

+      of certain users and service authors who are concerned about

+      accidental releases of information via unanticipated accesses to

+      cache data structures. While the use of this directive might

+      improve privacy in some cases, we caution that it is NOT in any

+      way a reliable or sufficient mechanism for ensuring privacy. In

+      particular, malicious or compromised caches might not recognize or

+      obey this directive, and communications networks might be

+      vulnerable to eavesdropping.

+

+14.9.3 Modifications of the Basic Expiration Mechanism

+

+   The expiration time of an entity MAY be specified by the origin

+   server using the Expires header (see section 14.21). Alternatively,

+   it MAY be specified using the max-age directive in a response. When

+   the max-age cache-control directive is present in a cached response,

+   the response is stale if its current age is greater than the age

+   value given (in seconds) at the time of a new request for that

+   resource. The max-age directive on a response implies that the

+   response is cacheable (i.e., "public") unless some other, more

+   restrictive cache directive is also present.

+

+   If a response includes both an Expires header and a max-age

+   directive, the max-age directive overrides the Expires header, even

+   if the Expires header is more restrictive. This rule allows an origin

+   server to provide, for a given response, a longer expiration time to

+   an HTTP/1.1 (or later) cache than to an HTTP/1.0 cache. This might be

+   useful if certain HTTP/1.0 caches improperly calculate ages or

+   expiration times, perhaps due to desynchronized clocks.

+

+   Many HTTP/1.0 cache implementations will treat an Expires value that

+   is less than or equal to the response Date value as being equivalent

+   to the Cache-Control response directive "no-cache". If an HTTP/1.1

+   cache receives such a response, and the response does not include a

+   Cache-Control header field, it SHOULD consider the response to be

+   non-cacheable in order to retain compatibility with HTTP/1.0 servers.

+

+       Note: An origin server might wish to use a relatively new HTTP

+       cache control feature, such as the "private" directive, on a

+       network including older caches that do not understand that

+       feature. The origin server will need to combine the new feature

+       with an Expires field whose value is less than or equal to the

+       Date value. This will prevent older caches from improperly

+       caching the response.

+

+   s-maxage

+       If a response includes an s-maxage directive, then for a shared

+       cache (but not for a private cache), the maximum age specified by

+       this directive overrides the maximum age specified by either the

+       max-age directive or the Expires header. The s-maxage directive

+       also implies the semantics of the proxy-revalidate directive (see

+       section 14.9.4), i.e., that the shared cache must not use the

+       entry after it becomes stale to respond to a subsequent request

+       without first revalidating it with the origin server. The s-

+       maxage directive is always ignored by a private cache.

+

+   Note that most older caches, not compliant with this specification,

+   do not implement any cache-control directives. An origin server

+   wishing to use a cache-control directive that restricts, but does not

+   prevent, caching by an HTTP/1.1-compliant cache MAY exploit the

+   requirement that the max-age directive overrides the Expires header,

+   and the fact that pre-HTTP/1.1-compliant caches do not observe the

+   max-age directive.

+

+   Other directives allow a user agent to modify the basic expiration

+   mechanism. These directives MAY be specified on a request:

+

+   max-age

+      Indicates that the client is willing to accept a response whose

+      age is no greater than the specified time in seconds. Unless max-

+      stale directive is also included, the client is not willing to

+      accept a stale response.

+

+   min-fresh

+      Indicates that the client is willing to accept a response whose

+      freshness lifetime is no less than its current age plus the

+      specified time in seconds. That is, the client wants a response

+      that will still be fresh for at least the specified number of

+      seconds.

+

+   max-stale

+      Indicates that the client is willing to accept a response that has

+      exceeded its expiration time. If max-stale is assigned a value,

+      then the client is willing to accept a response that has exceeded

+      its expiration time by no more than the specified number of

+      seconds. If no value is assigned to max-stale, then the client is

+      willing to accept a stale response of any age.

+

+   If a cache returns a stale response, either because of a max-stale

+   directive on a request, or because the cache is configured to

+   override the expiration time of a response, the cache MUST attach a

+   Warning header to the stale response, using Warning 110 (Response is

+   stale).

+

+   A cache MAY be configured to return stale responses without

+   validation, but only if this does not conflict with any "MUST"-level

+   requirements concerning cache validation (e.g., a "must-revalidate"

+   cache-control directive).

+

+   If both the new request and the cached entry include "max-age"

+   directives, then the lesser of the two values is used for determining

+   the freshness of the cached entry for that request.

+

+14.9.4 Cache Revalidation and Reload Controls

+

+   Sometimes a user agent might want or need to insist that a cache

+   revalidate its cache entry with the origin server (and not just with

+   the next cache along the path to the origin server), or to reload its

+   cache entry from the origin server. End-to-end revalidation might be

+   necessary if either the cache or the origin server has overestimated

+   the expiration time of the cached response. End-to-end reload may be

+   necessary if the cache entry has become corrupted for some reason.

+

+   End-to-end revalidation may be requested either when the client does

+   not have its own local cached copy, in which case we call it

+   "unspecified end-to-end revalidation", or when the client does have a

+   local cached copy, in which case we call it "specific end-to-end

+   revalidation."

+

+   The client can specify these three kinds of action using Cache-

+   Control request directives:

+

+   End-to-end reload

+      The request includes a "no-cache" cache-control directive or, for

+      compatibility with HTTP/1.0 clients, "Pragma: no-cache". Field

+      names MUST NOT be included with the no-cache directive in a

+      request. The server MUST NOT use a cached copy when responding to

+      such a request.

+

+   Specific end-to-end revalidation

+      The request includes a "max-age=0" cache-control directive, which

+      forces each cache along the path to the origin server to

+      revalidate its own entry, if any, with the next cache or server.

+      The initial request includes a cache-validating conditional with

+      the client's current validator.

+

+   Unspecified end-to-end revalidation

+      The request includes "max-age=0" cache-control directive, which

+      forces each cache along the path to the origin server to

+      revalidate its own entry, if any, with the next cache or server.

+      The initial request does not include a cache-validating

+

+      conditional; the first cache along the path (if any) that holds a

+      cache entry for this resource includes a cache-validating

+      conditional with its current validator.

+

+   max-age

+      When an intermediate cache is forced, by means of a max-age=0

+      directive, to revalidate its own cache entry, and the client has

+      supplied its own validator in the request, the supplied validator

+      might differ from the validator currently stored with the cache

+      entry. In this case, the cache MAY use either validator in making

+      its own request without affecting semantic transparency.

+

+      However, the choice of validator might affect performance. The

+      best approach is for the intermediate cache to use its own

+      validator when making its request. If the server replies with 304

+      (Not Modified), then the cache can return its now validated copy

+      to the client with a 200 (OK) response. If the server replies with

+      a new entity and cache validator, however, the intermediate cache

+      can compare the returned validator with the one provided in the

+      client's request, using the strong comparison function. If the

+      client's validator is equal to the origin server's, then the

+      intermediate cache simply returns 304 (Not Modified). Otherwise,

+      it returns the new entity with a 200 (OK) response.

+

+      If a request includes the no-cache directive, it SHOULD NOT

+      include min-fresh, max-stale, or max-age.

+

+   only-if-cached

+      In some cases, such as times of extremely poor network

+      connectivity, a client may want a cache to return only those

+      responses that it currently has stored, and not to reload or

+      revalidate with the origin server. To do this, the client may

+      include the only-if-cached directive in a request. If it receives

+      this directive, a cache SHOULD either respond using a cached entry

+      that is consistent with the other constraints of the request, or

+      respond with a 504 (Gateway Timeout) status. However, if a group

+      of caches is being operated as a unified system with good internal

+      connectivity, such a request MAY be forwarded within that group of

+      caches.

+

+   must-revalidate

+      Because a cache MAY be configured to ignore a server's specified

+      expiration time, and because a client request MAY include a max-

+      stale directive (which has a similar effect), the protocol also

+      includes a mechanism for the origin server to require revalidation

+      of a cache entry on any subsequent use. When the must-revalidate

+      directive is present in a response received by a cache, that cache

+      MUST NOT use the entry after it becomes stale to respond to a

+

+      subsequent request without first revalidating it with the origin

+      server. (I.e., the cache MUST do an end-to-end revalidation every

+      time, if, based solely on the origin server's Expires or max-age

+      value, the cached response is stale.)

+

+      The must-revalidate directive is necessary to support reliable

+      operation for certain protocol features. In all circumstances an

+      HTTP/1.1 cache MUST obey the must-revalidate directive; in

+      particular, if the cache cannot reach the origin server for any

+      reason, it MUST generate a 504 (Gateway Timeout) response.

+

+      Servers SHOULD send the must-revalidate directive if and only if

+      failure to revalidate a request on the entity could result in

+      incorrect operation, such as a silently unexecuted financial

+      transaction. Recipients MUST NOT take any automated action that

+      violates this directive, and MUST NOT automatically provide an

+      unvalidated copy of the entity if revalidation fails.

+

+      Although this is not recommended, user agents operating under

+      severe connectivity constraints MAY violate this directive but, if

+      so, MUST explicitly warn the user that an unvalidated response has

+      been provided. The warning MUST be provided on each unvalidated

+      access, and SHOULD require explicit user confirmation.

+

+   proxy-revalidate

+      The proxy-revalidate directive has the same meaning as the must-

+      revalidate directive, except that it does not apply to non-shared

+      user agent caches. It can be used on a response to an

+      authenticated request to permit the user's cache to store and

+      later return the response without needing to revalidate it (since

+      it has already been authenticated once by that user), while still

+      requiring proxies that service many users to revalidate each time

+      (in order to make sure that each user has been authenticated).

+      Note that such authenticated responses also need the public cache

+      control directive in order to allow them to be cached at all.

+

+14.9.5 No-Transform Directive

+

+   no-transform

+      Implementors of intermediate caches (proxies) have found it useful

+      to convert the media type of certain entity bodies. A non-

+      transparent proxy might, for example, convert between image

+      formats in order to save cache space or to reduce the amount of

+      traffic on a slow link.

+

+      Serious operational problems occur, however, when these

+      transformations are applied to entity bodies intended for certain

+      kinds of applications. For example, applications for medical

+

+      imaging, scientific data analysis and those using end-to-end

+      authentication, all depend on receiving an entity body that is bit

+      for bit identical to the original entity-body.

+

+      Therefore, if a message includes the no-transform directive, an

+      intermediate cache or proxy MUST NOT change those headers that are

+      listed in section 13.5.2 as being subject to the no-transform

+      directive. This implies that the cache or proxy MUST NOT change

+      any aspect of the entity-body that is specified by these headers,

+      including the value of the entity-body itself.

+

+14.9.6 Cache Control Extensions

+

+   The Cache-Control header field can be extended through the use of one

+   or more cache-extension tokens, each with an optional assigned value.

+   Informational extensions (those which do not require a change in

+   cache behavior) MAY be added without changing the semantics of other

+   directives. Behavioral extensions are designed to work by acting as

+   modifiers to the existing base of cache directives. Both the new

+   directive and the standard directive are supplied, such that

+   applications which do not understand the new directive will default

+   to the behavior specified by the standard directive, and those that

+   understand the new directive will recognize it as modifying the

+   requirements associated with the standard directive. In this way,

+   extensions to the cache-control directives can be made without

+   requiring changes to the base protocol.

+

+   This extension mechanism depends on an HTTP cache obeying all of the

+   cache-control directives defined for its native HTTP-version, obeying

+   certain extensions, and ignoring all directives that it does not

+   understand.

+

+   For example, consider a hypothetical new response directive called

+   community which acts as a modifier to the private directive. We

+   define this new directive to mean that, in addition to any non-shared

+   cache, any cache which is shared only by members of the community

+   named within its value may cache the response. An origin server

+   wishing to allow the UCI community to use an otherwise private

+   response in their shared cache(s) could do so by including

+

+       Cache-Control: private, community="UCI"

+

+   A cache seeing this header field will act correctly even if the cache

+   does not understand the community cache-extension, since it will also

+   see and understand the private directive and thus default to the safe

+   behavior.

+

+   Unrecognized cache-directives MUST be ignored; it is assumed that any

+   cache-directive likely to be unrecognized by an HTTP/1.1 cache will

+   be combined with standard directives (or the response's default

+   cacheability) such that the cache behavior will remain minimally

+   correct even if the cache does not understand the extension(s).

+

+14.10 Connection

+

+   The Connection general-header field allows the sender to specify

+   options that are desired for that particular connection and MUST NOT

+   be communicated by proxies over further connections.

+

+   The Connection header has the following grammar:

+

+       Connection = "Connection" ":" 1#(connection-token)

+       connection-token  = token

+

+   HTTP/1.1 proxies MUST parse the Connection header field before a

+   message is forwarded and, for each connection-token in this field,

+   remove any header field(s) from the message with the same name as the

+   connection-token. Connection options are signaled by the presence of

+   a connection-token in the Connection header field, not by any

+   corresponding additional header field(s), since the additional header

+   field may not be sent if there are no parameters associated with that

+   connection option.

+

+   Message headers listed in the Connection header MUST NOT include

+   end-to-end headers, such as Cache-Control.

+

+   HTTP/1.1 defines the "close" connection option for the sender to

+   signal that the connection will be closed after completion of the

+   response. For example,

+

+       Connection: close

+

+   in either the request or the response header fields indicates that

+   the connection SHOULD NOT be considered `persistent' (section 8.1)

+   after the current request/response is complete.

+

+   HTTP/1.1 applications that do not support persistent connections MUST

+   include the "close" connection option in every message.

+

+   A system receiving an HTTP/1.0 (or lower-version) message that

+   includes a Connection header MUST, for each connection-token in this

+   field, remove and ignore any header field(s) from the message with

+   the same name as the connection-token. This protects against mistaken

+   forwarding of such header fields by pre-HTTP/1.1 proxies. See section

+   19.6.2.

+

+14.11 Content-Encoding

+

+   The Content-Encoding entity-header field is used as a modifier to the

+   media-type. When present, its value indicates what additional content

+   codings have been applied to the entity-body, and thus what decoding

+   mechanisms must be applied in order to obtain the media-type

+   referenced by the Content-Type header field. Content-Encoding is

+   primarily used to allow a document to be compressed without losing

+   the identity of its underlying media type.

+

+       Content-Encoding  = "Content-Encoding" ":" 1#content-coding

+

+   Content codings are defined in section 3.5. An example of its use is

+

+       Content-Encoding: gzip

+

+   The content-coding is a characteristic of the entity identified by

+   the Request-URI. Typically, the entity-body is stored with this

+   encoding and is only decoded before rendering or analogous usage.

+   However, a non-transparent proxy MAY modify the content-coding if the

+   new coding is known to be acceptable to the recipient, unless the

+   "no-transform" cache-control directive is present in the message.

+

+   If the content-coding of an entity is not "identity", then the

+   response MUST include a Content-Encoding entity-header (section

+   14.11) that lists the non-identity content-coding(s) used.

+

+   If the content-coding of an entity in a request message is not

+   acceptable to the origin server, the server SHOULD respond with a

+   status code of 415 (Unsupported Media Type).

+

+   If multiple encodings have been applied to an entity, the content

+   codings MUST be listed in the order in which they were applied.

+   Additional information about the encoding parameters MAY be provided

+   by other entity-header fields not defined by this specification.

+

+14.12 Content-Language

+

+   The Content-Language entity-header field describes the natural

+   language(s) of the intended audience for the enclosed entity. Note

+   that this might not be equivalent to all the languages used within

+   the entity-body.

+

+       Content-Language  = "Content-Language" ":" 1#language-tag

+

+   Language tags are defined in section 3.10. The primary purpose of

+   Content-Language is to allow a user to identify and differentiate

+   entities according to the user's own preferred language. Thus, if the

+   body content is intended only for a Danish-literate audience, the

+   appropriate field is

+

+       Content-Language: da

+

+   If no Content-Language is specified, the default is that the content

+   is intended for all language audiences. This might mean that the

+   sender does not consider it to be specific to any natural language,

+   or that the sender does not know for which language it is intended.

+

+   Multiple languages MAY be listed for content that is intended for

+   multiple audiences. For example, a rendition of the "Treaty of

+   Waitangi," presented simultaneously in the original Maori and English

+   versions, would call for

+

+       Content-Language: mi, en

+

+   However, just because multiple languages are present within an entity

+   does not mean that it is intended for multiple linguistic audiences.

+   An example would be a beginner's language primer, such as "A First

+   Lesson in Latin," which is clearly intended to be used by an

+   English-literate audience. In this case, the Content-Language would

+   properly only include "en".

+

+   Content-Language MAY be applied to any media type -- it is not

+   limited to textual documents.

+

+14.13 Content-Length

+

+   The Content-Length entity-header field indicates the size of the

+   entity-body, in decimal number of OCTETs, sent to the recipient or,

+   in the case of the HEAD method, the size of the entity-body that

+   would have been sent had the request been a GET.

+

+       Content-Length    = "Content-Length" ":" 1*DIGIT

+

+   An example is

+

+       Content-Length: 3495

+

+   Applications SHOULD use this field to indicate the transfer-length of

+   the message-body, unless this is prohibited by the rules in section

+   4.4.

+

+   Any Content-Length greater than or equal to zero is a valid value.

+   Section 4.4 describes how to determine the length of a message-body

+   if a Content-Length is not given.

+

+   Note that the meaning of this field is significantly different from

+   the corresponding definition in MIME, where it is an optional field

+   used within the "message/external-body" content-type. In HTTP, it

+   SHOULD be sent whenever the message's length can be determined prior

+   to being transferred, unless this is prohibited by the rules in

+   section 4.4.

+

+14.14 Content-Location

+

+   The Content-Location entity-header field MAY be used to supply the

+   resource location for the entity enclosed in the message when that

+   entity is accessible from a location separate from the requested

+   resource's URI. A server SHOULD provide a Content-Location for the

+   variant corresponding to the response entity; especially in the case

+   where a resource has multiple entities associated with it, and those

+   entities actually have separate locations by which they might be

+   individually accessed, the server SHOULD provide a Content-Location

+   for the particular variant which is returned.

+

+       Content-Location = "Content-Location" ":"

+                         ( absoluteURI | relativeURI )

+

+   The value of Content-Location also defines the base URI for the

+   entity.

+

+   The Content-Location value is not a replacement for the original

+   requested URI; it is only a statement of the location of the resource

+   corresponding to this particular entity at the time of the request.

+   Future requests MAY specify the Content-Location URI as the request-

+   URI if the desire is to identify the source of that particular

+   entity.

+

+   A cache cannot assume that an entity with a Content-Location

+   different from the URI used to retrieve it can be used to respond to

+   later requests on that Content-Location URI. However, the Content-

+   Location can be used to differentiate between multiple entities

+   retrieved from a single requested resource, as described in section

+   13.6.

+

+   If the Content-Location is a relative URI, the relative URI is

+   interpreted relative to the Request-URI.

+

+   The meaning of the Content-Location header in PUT or POST requests is

+   undefined; servers are free to ignore it in those cases.

+

+14.15 Content-MD5

+

+   The Content-MD5 entity-header field, as defined in <a href="http://firefly.troll.no/rfcs/rfc1864.html">RFC 1864</a> [23], is

+   an MD5 digest of the entity-body for the purpose of providing an

+   end-to-end message integrity check (MIC) of the entity-body. (Note: a

+   MIC is good for detecting accidental modification of the entity-body

+   in transit, but is not proof against malicious attacks.)

+

+        Content-MD5   = "Content-MD5" ":" md5-digest

+        md5-digest   = &lt;base64 of 128 bit MD5 digest as per <a href="http://firefly.troll.no/rfcs/rfc1864.html">RFC 1864</a>&gt;

+

+   The Content-MD5 header field MAY be generated by an origin server or

+   client to function as an integrity check of the entity-body. Only

+   origin servers or clients MAY generate the Content-MD5 header field;

+   proxies and gateways MUST NOT generate it, as this would defeat its

+   value as an end-to-end integrity check. Any recipient of the entity-

+   body, including gateways and proxies, MAY check that the digest value

+   in this header field matches that of the entity-body as received.

+

+   The MD5 digest is computed based on the content of the entity-body,

+   including any content-coding that has been applied, but not including

+   any transfer-encoding applied to the message-body. If the message is

+   received with a transfer-encoding, that encoding MUST be removed

+   prior to checking the Content-MD5 value against the received entity.

+

+   This has the result that the digest is computed on the octets of the

+   entity-body exactly as, and in the order that, they would be sent if

+   no transfer-encoding were being applied.

+

+   HTTP extends <a href="http://firefly.troll.no/rfcs/rfc1864.html">RFC 1864</a> to permit the digest to be computed for MIME

+   composite media-types (e.g., multipart/* and message/rfc822), but

+   this does not change how the digest is computed as defined in the

+   preceding paragraph.

+

+   There are several consequences of this. The entity-body for composite

+   types MAY contain many body-parts, each with its own MIME and HTTP

+   headers (including Content-MD5, Content-Transfer-Encoding, and

+   Content-Encoding headers). If a body-part has a Content-Transfer-

+   Encoding or Content-Encoding header, it is assumed that the content

+   of the body-part has had the encoding applied, and the body-part is

+   included in the Content-MD5 digest as is -- i.e., after the

+   application. The Transfer-Encoding header field is not allowed within

+   body-parts.

+

+   Conversion of all line breaks to CRLF MUST NOT be done before

+   computing or checking the digest: the line break convention used in

+   the text actually transmitted MUST be left unaltered when computing

+   the digest.

+

+      Note: while the definition of Content-MD5 is exactly the same for

+      HTTP as in <a href="http://firefly.troll.no/rfcs/rfc1864.html">RFC 1864</a> for MIME entity-bodies, there are several ways

+      in which the application of Content-MD5 to HTTP entity-bodies

+      differs from its application to MIME entity-bodies. One is that

+      HTTP, unlike MIME, does not use Content-Transfer-Encoding, and

+      does use Transfer-Encoding and Content-Encoding. Another is that

+      HTTP more frequently uses binary content types than MIME, so it is

+      worth noting that, in such cases, the byte order used to compute

+      the digest is the transmission byte order defined for the type.

+      Lastly, HTTP allows transmission of text types with any of several

+      line break conventions and not just the canonical form using CRLF.

+

+14.16 Content-Range

+

+   The Content-Range entity-header is sent with a partial entity-body to

+   specify where in the full entity-body the partial body should be

+   applied. Range units are defined in section 3.12.

+

+       Content-Range = "Content-Range" ":" content-range-spec

+

+       content-range-spec      = byte-content-range-spec

+       byte-content-range-spec = bytes-unit SP

+                                 byte-range-resp-spec "/"

+                                 ( instance-length | "*" )

+

+       byte-range-resp-spec = (first-byte-pos "-" last-byte-pos)

+                                      | "*"

+       instance-length           = 1*DIGIT

+

+   The header SHOULD indicate the total length of the full entity-body,

+   unless this length is unknown or difficult to determine. The asterisk

+   "*" character means that the instance-length is unknown at the time

+   when the response was generated.

+

+   Unlike byte-ranges-specifier values (see section 14.35.1), a byte-

+   range-resp-spec MUST only specify one range, and MUST contain

+   absolute byte positions for both the first and last byte of the

+   range.

+

+   A byte-content-range-spec with a byte-range-resp-spec whose last-

+   byte-pos value is less than its first-byte-pos value, or whose

+   instance-length value is less than or equal to its last-byte-pos

+   value, is invalid. The recipient of an invalid byte-content-range-

+   spec MUST ignore it and any content transferred along with it.

+

+   A server sending a response with status code 416 (Requested range not

+   satisfiable) SHOULD include a Content-Range field with a byte-range-

+   resp-spec of "*". The instance-length specifies the current length of

+

+   the selected resource. A response with status code 206 (Partial

+   Content) MUST NOT include a Content-Range field with a byte-range-

+   resp-spec of "*".

+

+   Examples of byte-content-range-spec values, assuming that the entity

+   contains a total of 1234 bytes:

+

+      . The first 500 bytes:

+       bytes 0-499/1234

+

+      . The second 500 bytes:

+       bytes 500-999/1234

+

+      . All except for the first 500 bytes:

+       bytes 500-1233/1234

+

+      . The last 500 bytes:

+       bytes 734-1233/1234

+

+   When an HTTP message includes the content of a single range (for

+   example, a response to a request for a single range, or to a request

+   for a set of ranges that overlap without any holes), this content is

+   transmitted with a Content-Range header, and a Content-Length header

+   showing the number of bytes actually transferred. For example,

+

+       HTTP/1.1 206 Partial content

+       Date: Wed, 15 Nov 1995 06:25:24 GMT

+       Last-Modified: Wed, 15 Nov 1995 04:58:08 GMT

+       Content-Range: bytes 21010-47021/47022

+       Content-Length: 26012

+       Content-Type: image/gif

+

+   When an HTTP message includes the content of multiple ranges (for

+   example, a response to a request for multiple non-overlapping

+   ranges), these are transmitted as a multipart message. The multipart

+   media type used for this purpose is "multipart/byteranges" as defined

+   in appendix 19.2. See appendix 19.6.3 for a compatibility issue.

+

+   A response to a request for a single range MUST NOT be sent using the

+   multipart/byteranges media type.  A response to a request for

+   multiple ranges, whose result is a single range, MAY be sent as a

+   multipart/byteranges media type with one part. A client that cannot

+   decode a multipart/byteranges message MUST NOT ask for multiple

+   byte-ranges in a single request.

+

+   When a client requests multiple byte-ranges in one request, the

+   server SHOULD return them in the order that they appeared in the

+   request.

+

+   If the server ignores a byte-range-spec because it is syntactically

+   invalid, the server SHOULD treat the request as if the invalid Range

+   header field did not exist. (Normally, this means return a 200

+   response containing the full entity).

+

+   If the server receives a request (other than one including an If-

+   Range request-header field) with an unsatisfiable Range request-

+   header field (that is, all of whose byte-range-spec values have a

+   first-byte-pos value greater than the current length of the selected

+   resource), it SHOULD return a response code of 416 (Requested range

+   not satisfiable) (section 10.4.17).

+

+      Note: clients cannot depend on servers to send a 416 (Requested

+      range not satisfiable) response instead of a 200 (OK) response for

+      an unsatisfiable Range request-header, since not all servers

+      implement this request-header.

+

+14.17 Content-Type

+

+   The Content-Type entity-header field indicates the media type of the

+   entity-body sent to the recipient or, in the case of the HEAD method,

+   the media type that would have been sent had the request been a GET.

+

+       Content-Type   = "Content-Type" ":" media-type

+

+   Media types are defined in section 3.7. An example of the field is

+

+       Content-Type: text/html; charset=ISO-8859-4

+

+   Further discussion of methods for identifying the media type of an

+   entity is provided in section 7.2.1.

+

+14.18 Date

+

+   The Date general-header field represents the date and time at which

+   the message was originated, having the same semantics as orig-date in

+   <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a>. The field value is an HTTP-date, as described in section

+   3.3.1; it MUST be sent in <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a> [8]-date format.

+

+       Date  = "Date" ":" HTTP-date

+

+   An example is

+

+       Date: Tue, 15 Nov 1994 08:12:31 GMT

+

+   Origin servers MUST include a Date header field in all responses,

+   except in these cases:

+

+      1. If the response status code is 100 (Continue) or 101 (Switching

+         Protocols), the response MAY include a Date header field, at

+         the server's option.

+

+      2. If the response status code conveys a server error, e.g. 500

+         (Internal Server Error) or 503 (Service Unavailable), and it is

+         inconvenient or impossible to generate a valid Date.

+

+      3. If the server does not have a clock that can provide a

+         reasonable approximation of the current time, its responses

+         MUST NOT include a Date header field. In this case, the rules

+         in section 14.18.1 MUST be followed.

+

+   A received message that does not have a Date header field MUST be

+   assigned one by the recipient if the message will be cached by that

+   recipient or gatewayed via a protocol which requires a Date. An HTTP

+   implementation without a clock MUST NOT cache responses without

+   revalidating them on every use. An HTTP cache, especially a shared

+   cache, SHOULD use a mechanism, such as NTP [28], to synchronize its

+   clock with a reliable external standard.

+

+   Clients SHOULD only send a Date header field in messages that include

+   an entity-body, as in the case of the PUT and POST requests, and even

+   then it is optional. A client without a clock MUST NOT send a Date

+   header field in a request.

+

+   The HTTP-date sent in a Date header SHOULD NOT represent a date and

+   time subsequent to the generation of the message. It SHOULD represent

+   the best available approximation of the date and time of message

+   generation, unless the implementation has no means of generating a

+   reasonably accurate date and time. In theory, the date ought to

+   represent the moment just before the entity is generated. In

+   practice, the date can be generated at any time during the message

+   origination without affecting its semantic value.

+

+14.18.1 Clockless Origin Server Operation

+

+   Some origin server implementations might not have a clock available.

+   An origin server without a clock MUST NOT assign Expires or Last-

+   Modified values to a response, unless these values were associated

+   with the resource by a system or user with a reliable clock. It MAY

+   assign an Expires value that is known, at or before server

+   configuration time, to be in the past (this allows "pre-expiration"

+   of responses without storing separate Expires values for each

+   resource).

+

+14.19 ETag

+

+   The ETag response-header field provides the current value of the

+   entity tag for the requested variant. The headers used with entity

+   tags are described in sections 14.24, 14.26 and 14.44. The entity tag

+   MAY be used for comparison with other entities from the same resource

+   (see section 13.3.3).

+

+      ETag = "ETag" ":" entity-tag

+

+   Examples:

+

+      ETag: "xyzzy"

+      ETag: W/"xyzzy"

+      ETag: ""

+

+14.20 Expect

+

+   The Expect request-header field is used to indicate that particular

+   server behaviors are required by the client.

+

+      Expect       =  "Expect" ":" 1#expectation

+

+      expectation  =  "100-continue" | expectation-extension

+      expectation-extension =  token [ "=" ( token | quoted-string )

+                               *expect-params ]

+      expect-params =  ";" token [ "=" ( token | quoted-string ) ]

+

+   A server that does not understand or is unable to comply with any of

+   the expectation values in the Expect field of a request MUST respond

+   with appropriate error status. The server MUST respond with a 417

+   (Expectation Failed) status if any of the expectations cannot be met

+   or, if there are other problems with the request, some other 4xx

+   status.

+

+   This header field is defined with extensible syntax to allow for

+   future extensions. If a server receives a request containing an

+   Expect field that includes an expectation-extension that it does not

+   support, it MUST respond with a 417 (Expectation Failed) status.

+

+   Comparison of expectation values is case-insensitive for unquoted

+   tokens (including the 100-continue token), and is case-sensitive for

+   quoted-string expectation-extensions.

+

+   The Expect mechanism is hop-by-hop: that is, an HTTP/1.1 proxy MUST

+   return a 417 (Expectation Failed) status if it receives a request

+   with an expectation that it cannot meet. However, the Expect

+   request-header itself is end-to-end; it MUST be forwarded if the

+   request is forwarded.

+

+   Many older HTTP/1.0 and HTTP/1.1 applications do not understand the

+   Expect header.

+

+   See section 8.2.3 for the use of the 100 (continue) status.

+

+14.21 Expires

+

+   The Expires entity-header field gives the date/time after which the

+   response is considered stale. A stale cache entry may not normally be

+   returned by a cache (either a proxy cache or a user agent cache)

+   unless it is first validated with the origin server (or with an

+   intermediate cache that has a fresh copy of the entity). See section

+   13.2 for further discussion of the expiration model.

+

+   The presence of an Expires field does not imply that the original

+   resource will change or cease to exist at, before, or after that

+   time.

+

+   The format is an absolute date and time as defined by HTTP-date in

+   section 3.3.1; it MUST be in <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a> date format:

+

+      Expires = "Expires" ":" HTTP-date

+

+   An example of its use is

+

+      Expires: Thu, 01 Dec 1994 16:00:00 GMT

+

+      Note: if a response includes a Cache-Control field with the max-

+      age directive (see section 14.9.3), that directive overrides the

+      Expires field.

+

+   HTTP/1.1 clients and caches MUST treat other invalid date formats,

+   especially including the value "0", as in the past (i.e., "already

+   expired").

+

+   To mark a response as "already expired," an origin server sends an

+   Expires date that is equal to the Date header value. (See the rules

+   for expiration calculations in section 13.2.4.)

+

+   To mark a response as "never expires," an origin server sends an

+   Expires date approximately one year from the time the response is

+   sent. HTTP/1.1 servers SHOULD NOT send Expires dates more than one

+   year in the future.

+

+   The presence of an Expires header field with a date value of some

+   time in the future on a response that otherwise would by default be

+   non-cacheable indicates that the response is cacheable, unless

+   indicated otherwise by a Cache-Control header field (section 14.9).

+

+14.22 From

+

+   The From request-header field, if given, SHOULD contain an Internet

+   e-mail address for the human user who controls the requesting user

+   agent. The address SHOULD be machine-usable, as defined by "mailbox"

+   in <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9] as updated by <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a> [8]:

+

+       From   = "From" ":" mailbox

+

+   An example is:

+

+       From: <a href="mailto:webmaster@w3.org">webmaster@w3.org</a>

+

+   This header field MAY be used for logging purposes and as a means for

+   identifying the source of invalid or unwanted requests. It SHOULD NOT

+   be used as an insecure form of access protection. The interpretation

+   of this field is that the request is being performed on behalf of the

+   person given, who accepts responsibility for the method performed. In

+   particular, robot agents SHOULD include this header so that the

+   person responsible for running the robot can be contacted if problems

+   occur on the receiving end.

+

+   The Internet e-mail address in this field MAY be separate from the

+   Internet host which issued the request. For example, when a request

+   is passed through a proxy the original issuer's address SHOULD be

+   used.

+

+   The client SHOULD NOT send the From header field without the user's

+   approval, as it might conflict with the user's privacy interests or

+   their site's security policy. It is strongly recommended that the

+   user be able to disable, enable, and modify the value of this field

+   at any time prior to a request.

+

+14.23 Host

+

+   The Host request-header field specifies the Internet host and port

+   number of the resource being requested, as obtained from the original

+   URI given by the user or referring resource (generally an HTTP URL,

+

+   as described in section 3.2.2). The Host field value MUST represent

+   the naming authority of the origin server or gateway given by the

+   original URL. This allows the origin server or gateway to

+   differentiate between internally-ambiguous URLs, such as the root "/"

+   URL of a server for multiple host names on a single IP address.

+

+       Host = "Host" ":" host [ ":" port ] ; Section 3.2.2

+

+   A "host" without any trailing port information implies the default

+   port for the service requested (e.g., "80" for an HTTP URL). For

+   example, a request on the origin server for

+   &lt;<a href="http://www.w3.org/pub/WWW/">http://www.w3.org/pub/WWW/</a>&gt; would properly include:

+

+       GET /pub/WWW/ HTTP/1.1

+       Host: www.w3.org

+

+   A client MUST include a Host header field in all HTTP/1.1 request

+   messages . If the requested URI does not include an Internet host

+   name for the service being requested, then the Host header field MUST

+   be given with an empty value. An HTTP/1.1 proxy MUST ensure that any

+   request message it forwards does contain an appropriate Host header

+   field that identifies the service being requested by the proxy. All

+   Internet-based HTTP/1.1 servers MUST respond with a 400 (Bad Request)

+   status code to any HTTP/1.1 request message which lacks a Host header

+   field.

+

+   See sections 5.2 and 19.6.1.1 for other requirements relating to

+   Host.

+

+14.24 If-Match

+

+   The If-Match request-header field is used with a method to make it

+   conditional. A client that has one or more entities previously

+   obtained from the resource can verify that one of those entities is

+   current by including a list of their associated entity tags in the

+   If-Match header field. Entity tags are defined in section 3.11. The

+   purpose of this feature is to allow efficient updates of cached

+   information with a minimum amount of transaction overhead. It is also

+   used, on updating requests, to prevent inadvertent modification of

+   the wrong version of a resource. As a special case, the value "*"

+   matches any current entity of the resource.

+

+       If-Match = "If-Match" ":" ( "*" | 1#entity-tag )

+

+   If any of the entity tags match the entity tag of the entity that

+   would have been returned in the response to a similar GET request

+   (without the If-Match header) on that resource, or if "*" is given

+

+   and any current entity exists for that resource, then the server MAY

+   perform the requested method as if the If-Match header field did not

+   exist.

+

+   A server MUST use the strong comparison function (see section 13.3.3)

+   to compare the entity tags in If-Match.

+

+   If none of the entity tags match, or if "*" is given and no current

+   entity exists, the server MUST NOT perform the requested method, and

+   MUST return a 412 (Precondition Failed) response. This behavior is

+   most useful when the client wants to prevent an updating method, such

+   as PUT, from modifying a resource that has changed since the client

+   last retrieved it.

+

+   If the request would, without the If-Match header field, result in

+   anything other than a 2xx or 412 status, then the If-Match header

+   MUST be ignored.

+

+   The meaning of "If-Match: *" is that the method SHOULD be performed

+   if the representation selected by the origin server (or by a cache,

+   possibly using the Vary mechanism, see section 14.44) exists, and

+   MUST NOT be performed if the representation does not exist.

+

+   A request intended to update a resource (e.g., a PUT) MAY include an

+   If-Match header field to signal that the request method MUST NOT be

+   applied if the entity corresponding to the If-Match value (a single

+   entity tag) is no longer a representation of that resource. This

+   allows the user to indicate that they do not wish the request to be

+   successful if the resource has been changed without their knowledge.

+   Examples:

+

+       If-Match: "xyzzy"

+       If-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"

+       If-Match: *

+

+   The result of a request having both an If-Match header field and

+   either an If-None-Match or an If-Modified-Since header fields is

+   undefined by this specification.

+

+14.25 If-Modified-Since

+

+   The If-Modified-Since request-header field is used with a method to

+   make it conditional: if the requested variant has not been modified

+   since the time specified in this field, an entity will not be

+   returned from the server; instead, a 304 (not modified) response will

+   be returned without any message-body.

+

+       If-Modified-Since = "If-Modified-Since" ":" HTTP-date

+

+   An example of the field is:

+

+       If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT

+

+   A GET method with an If-Modified-Since header and no Range header

+   requests that the identified entity be transferred only if it has

+   been modified since the date given by the If-Modified-Since header.

+   The algorithm for determining this includes the following cases:

+

+      a) If the request would normally result in anything other than a

+         200 (OK) status, or if the passed If-Modified-Since date is

+         invalid, the response is exactly the same as for a normal GET.

+         A date which is later than the server's current time is

+         invalid.

+

+      b) If the variant has been modified since the If-Modified-Since

+         date, the response is exactly the same as for a normal GET.

+

+      c) If the variant has not been modified since a valid If-

+         Modified-Since date, the server SHOULD return a 304 (Not

+         Modified) response.

+

+   The purpose of this feature is to allow efficient updates of cached

+   information with a minimum amount of transaction overhead.

+

+      Note: The Range request-header field modifies the meaning of If-

+      Modified-Since; see section 14.35 for full details.

+

+      Note: If-Modified-Since times are interpreted by the server, whose

+      clock might not be synchronized with the client.

+

+      Note: When handling an If-Modified-Since header field, some

+      servers will use an exact date comparison function, rather than a

+      less-than function, for deciding whether to send a 304 (Not

+      Modified) response. To get best results when sending an If-

+      Modified-Since header field for cache validation, clients are

+      advised to use the exact date string received in a previous Last-

+      Modified header field whenever possible.

+

+      Note: If a client uses an arbitrary date in the If-Modified-Since

+      header instead of a date taken from the Last-Modified header for

+      the same request, the client should be aware of the fact that this

+      date is interpreted in the server's understanding of time. The

+      client should consider unsynchronized clocks and rounding problems

+      due to the different encodings of time between the client and

+      server. This includes the possibility of race conditions if the

+      document has changed between the time it was first requested and

+      the If-Modified-Since date of a subsequent request, and the

+

+      possibility of clock-skew-related problems if the If-Modified-

+      Since date is derived from the client's clock without correction

+      to the server's clock. Corrections for different time bases

+      between client and server are at best approximate due to network

+      latency.

+

+   The result of a request having both an If-Modified-Since header field

+   and either an If-Match or an If-Unmodified-Since header fields is

+   undefined by this specification.

+

+14.26 If-None-Match

+

+   The If-None-Match request-header field is used with a method to make

+   it conditional. A client that has one or more entities previously

+   obtained from the resource can verify that none of those entities is

+   current by including a list of their associated entity tags in the

+   If-None-Match header field. The purpose of this feature is to allow

+   efficient updates of cached information with a minimum amount of

+   transaction overhead. It is also used to prevent a method (e.g. PUT)

+   from inadvertently modifying an existing resource when the client

+   believes that the resource does not exist.

+

+   As a special case, the value "*" matches any current entity of the

+   resource.

+

+       If-None-Match = "If-None-Match" ":" ( "*" | 1#entity-tag )

+

+   If any of the entity tags match the entity tag of the entity that

+   would have been returned in the response to a similar GET request

+   (without the If-None-Match header) on that resource, or if "*" is

+   given and any current entity exists for that resource, then the

+   server MUST NOT perform the requested method, unless required to do

+   so because the resource's modification date fails to match that

+   supplied in an If-Modified-Since header field in the request.

+   Instead, if the request method was GET or HEAD, the server SHOULD

+   respond with a 304 (Not Modified) response, including the cache-

+   related header fields (particularly ETag) of one of the entities that

+   matched. For all other request methods, the server MUST respond with

+   a status of 412 (Precondition Failed).

+

+   See section 13.3.3 for rules on how to determine if two entities tags

+   match. The weak comparison function can only be used with GET or HEAD

+   requests.

+

+   If none of the entity tags match, then the server MAY perform the

+   requested method as if the If-None-Match header field did not exist,

+   but MUST also ignore any If-Modified-Since header field(s) in the

+   request. That is, if no entity tags match, then the server MUST NOT

+   return a 304 (Not Modified) response.

+

+   If the request would, without the If-None-Match header field, result

+   in anything other than a 2xx or 304 status, then the If-None-Match

+   header MUST be ignored. (See section 13.3.4 for a discussion of

+   server behavior when both If-Modified-Since and If-None-Match appear

+   in the same request.)

+

+   The meaning of "If-None-Match: *" is that the method MUST NOT be

+   performed if the representation selected by the origin server (or by

+   a cache, possibly using the Vary mechanism, see section 14.44)

+   exists, and SHOULD be performed if the representation does not exist.

+   This feature is intended to be useful in preventing races between PUT

+   operations.

+

+   Examples:

+

+       If-None-Match: "xyzzy"

+       If-None-Match: W/"xyzzy"

+       If-None-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"

+       If-None-Match: W/"xyzzy", W/"r2d2xxxx", W/"c3piozzzz"

+       If-None-Match: *

+

+   The result of a request having both an If-None-Match header field and

+   either an If-Match or an If-Unmodified-Since header fields is

+   undefined by this specification.

+

+14.27 If-Range

+

+   If a client has a partial copy of an entity in its cache, and wishes

+   to have an up-to-date copy of the entire entity in its cache, it

+   could use the Range request-header with a conditional GET (using

+   either or both of If-Unmodified-Since and If-Match.) However, if the

+   condition fails because the entity has been modified, the client

+   would then have to make a second request to obtain the entire current

+   entity-body.

+

+   The If-Range header allows a client to "short-circuit" the second

+   request. Informally, its meaning is `if the entity is unchanged, send

+   me the part(s) that I am missing; otherwise, send me the entire new

+   entity'.

+

+        If-Range = "If-Range" ":" ( entity-tag | HTTP-date )

+

+   If the client has no entity tag for an entity, but does have a Last-

+   Modified date, it MAY use that date in an If-Range header. (The

+   server can distinguish between a valid HTTP-date and any form of

+   entity-tag by examining no more than two characters.) The If-Range

+   header SHOULD only be used together with a Range header, and MUST be

+   ignored if the request does not include a Range header, or if the

+   server does not support the sub-range operation.

+

+   If the entity tag given in the If-Range header matches the current

+   entity tag for the entity, then the server SHOULD provide the

+   specified sub-range of the entity using a 206 (Partial content)

+   response. If the entity tag does not match, then the server SHOULD

+   return the entire entity using a 200 (OK) response.

+

+14.28 If-Unmodified-Since

+

+   The If-Unmodified-Since request-header field is used with a method to

+   make it conditional. If the requested resource has not been modified

+   since the time specified in this field, the server SHOULD perform the

+   requested operation as if the If-Unmodified-Since header were not

+   present.

+

+   If the requested variant has been modified since the specified time,

+   the server MUST NOT perform the requested operation, and MUST return

+   a 412 (Precondition Failed).

+

+      If-Unmodified-Since = "If-Unmodified-Since" ":" HTTP-date

+

+   An example of the field is:

+

+       If-Unmodified-Since: Sat, 29 Oct 1994 19:43:31 GMT

+

+   If the request normally (i.e., without the If-Unmodified-Since

+   header) would result in anything other than a 2xx or 412 status, the

+   If-Unmodified-Since header SHOULD be ignored.

+

+   If the specified date is invalid, the header is ignored.

+

+   The result of a request having both an If-Unmodified-Since header

+   field and either an If-None-Match or an If-Modified-Since header

+   fields is undefined by this specification.

+

+14.29 Last-Modified

+

+   The Last-Modified entity-header field indicates the date and time at

+   which the origin server believes the variant was last modified.

+

+       Last-Modified  = "Last-Modified" ":" HTTP-date

+

+   An example of its use is

+

+       Last-Modified: Tue, 15 Nov 1994 12:45:26 GMT

+

+   The exact meaning of this header field depends on the implementation

+   of the origin server and the nature of the original resource. For

+   files, it may be just the file system last-modified time. For

+   entities with dynamically included parts, it may be the most recent

+   of the set of last-modify times for its component parts. For database

+   gateways, it may be the last-update time stamp of the record. For

+   virtual objects, it may be the last time the internal state changed.

+

+   An origin server MUST NOT send a Last-Modified date which is later

+   than the server's time of message origination. In such cases, where

+   the resource's last modification would indicate some time in the

+   future, the server MUST replace that date with the message

+   origination date.

+

+   An origin server SHOULD obtain the Last-Modified value of the entity

+   as close as possible to the time that it generates the Date value of

+   its response. This allows a recipient to make an accurate assessment

+   of the entity's modification time, especially if the entity changes

+   near the time that the response is generated.

+

+   HTTP/1.1 servers SHOULD send Last-Modified whenever feasible.

+

+14.30 Location

+

+   The Location response-header field is used to redirect the recipient

+   to a location other than the Request-URI for completion of the

+   request or identification of a new resource. For 201 (Created)

+   responses, the Location is that of the new resource which was created

+   by the request. For 3xx responses, the location SHOULD indicate the

+   server's preferred URI for automatic redirection to the resource. The

+   field value consists of a single absolute URI.

+

+       Location       = "Location" ":" absoluteURI

+

+   An example is:

+

+       Location: <a href="http://www.w3.org/pub/WWW/People.html">http://www.w3.org/pub/WWW/People.html</a>

+

+      Note: The Content-Location header field (section 14.14) differs

+      from Location in that the Content-Location identifies the original

+      location of the entity enclosed in the request. It is therefore

+      possible for a response to contain header fields for both Location

+      and Content-Location. Also see section 13.10 for cache

+      requirements of some methods.

+

+14.31 Max-Forwards

+

+   The Max-Forwards request-header field provides a mechanism with the

+   TRACE (section 9.8) and OPTIONS (section 9.2) methods to limit the

+   number of proxies or gateways that can forward the request to the

+   next inbound server. This can be useful when the client is attempting

+   to trace a request chain which appears to be failing or looping in

+   mid-chain.

+

+       Max-Forwards   = "Max-Forwards" ":" 1*DIGIT

+

+   The Max-Forwards value is a decimal integer indicating the remaining

+   number of times this request message may be forwarded.

+

+   Each proxy or gateway recipient of a TRACE or OPTIONS request

+   containing a Max-Forwards header field MUST check and update its

+   value prior to forwarding the request. If the received value is zero

+   (0), the recipient MUST NOT forward the request; instead, it MUST

+   respond as the final recipient. If the received Max-Forwards value is

+   greater than zero, then the forwarded message MUST contain an updated

+   Max-Forwards field with a value decremented by one (1).

+

+   The Max-Forwards header field MAY be ignored for all other methods

+   defined by this specification and for any extension methods for which

+   it is not explicitly referred to as part of that method definition.

+

+14.32 Pragma

+

+   The Pragma general-header field is used to include implementation-

+   specific directives that might apply to any recipient along the

+   request/response chain. All pragma directives specify optional

+   behavior from the viewpoint of the protocol; however, some systems

+   MAY require that behavior be consistent with the directives.

+

+       Pragma            = "Pragma" ":" 1#pragma-directive

+       pragma-directive  = "no-cache" | extension-pragma

+       extension-pragma  = token [ "=" ( token | quoted-string ) ]

+

+   When the no-cache directive is present in a request message, an

+   application SHOULD forward the request toward the origin server even

+   if it has a cached copy of what is being requested. This pragma

+   directive has the same semantics as the no-cache cache-directive (see

+   section 14.9) and is defined here for backward compatibility with

+   HTTP/1.0. Clients SHOULD include both header fields when a no-cache

+   request is sent to a server not known to be HTTP/1.1 compliant.

+

+   Pragma directives MUST be passed through by a proxy or gateway

+   application, regardless of their significance to that application,

+   since the directives might be applicable to all recipients along the

+   request/response chain. It is not possible to specify a pragma for a

+   specific recipient; however, any pragma directive not relevant to a

+   recipient SHOULD be ignored by that recipient.

+

+   HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client had

+   sent "Cache-Control: no-cache". No new Pragma directives will be

+   defined in HTTP.

+

+      Note: because the meaning of "Pragma: no-cache as a response

+      header field is not actually specified, it does not provide a

+      reliable replacement for "Cache-Control: no-cache" in a response

+

+14.33 Proxy-Authenticate

+

+   The Proxy-Authenticate response-header field MUST be included as part

+   of a 407 (Proxy Authentication Required) response. The field value

+   consists of a challenge that indicates the authentication scheme and

+   parameters applicable to the proxy for this Request-URI.

+

+       Proxy-Authenticate  = "Proxy-Authenticate" ":" 1#challenge

+

+   The HTTP access authentication process is described in "HTTP

+   Authentication: Basic and Digest Access Authentication" [43]. Unlike

+   WWW-Authenticate, the Proxy-Authenticate header field applies only to

+   the current connection and SHOULD NOT be passed on to downstream

+   clients. However, an intermediate proxy might need to obtain its own

+   credentials by requesting them from the downstream client, which in

+   some circumstances will appear as if the proxy is forwarding the

+   Proxy-Authenticate header field.

+

+14.34 Proxy-Authorization

+

+   The Proxy-Authorization request-header field allows the client to

+   identify itself (or its user) to a proxy which requires

+   authentication. The Proxy-Authorization field value consists of

+   credentials containing the authentication information of the user

+   agent for the proxy and/or realm of the resource being requested.

+

+       Proxy-Authorization     = "Proxy-Authorization" ":" credentials

+

+   The HTTP access authentication process is described in "HTTP

+   Authentication: Basic and Digest Access Authentication" [43] . Unlike

+   Authorization, the Proxy-Authorization header field applies only to

+   the next outbound proxy that demanded authentication using the Proxy-

+   Authenticate field. When multiple proxies are used in a chain, the

+

+   Proxy-Authorization header field is consumed by the first outbound

+   proxy that was expecting to receive credentials. A proxy MAY relay

+   the credentials from the client request to the next proxy if that is

+   the mechanism by which the proxies cooperatively authenticate a given

+   request.

+

+14.35 Range

+

+14.35.1 Byte Ranges

+

+   Since all HTTP entities are represented in HTTP messages as sequences

+   of bytes, the concept of a byte range is meaningful for any HTTP

+   entity. (However, not all clients and servers need to support byte-

+   range operations.)

+

+   Byte range specifications in HTTP apply to the sequence of bytes in

+   the entity-body (not necessarily the same as the message-body).

+

+   A byte range operation MAY specify a single range of bytes, or a set

+   of ranges within a single entity.

+

+       ranges-specifier = byte-ranges-specifier

+       byte-ranges-specifier = bytes-unit "=" byte-range-set

+       byte-range-set  = 1#( byte-range-spec | suffix-byte-range-spec )

+       byte-range-spec = first-byte-pos "-" [last-byte-pos]

+       first-byte-pos  = 1*DIGIT

+       last-byte-pos   = 1*DIGIT

+

+   The first-byte-pos value in a byte-range-spec gives the byte-offset

+   of the first byte in a range. The last-byte-pos value gives the

+   byte-offset of the last byte in the range; that is, the byte

+   positions specified are inclusive. Byte offsets start at zero.

+

+   If the last-byte-pos value is present, it MUST be greater than or

+   equal to the first-byte-pos in that byte-range-spec, or the byte-

+   range-spec is syntactically invalid. The recipient of a byte-range-

+   set that includes one or more syntactically invalid byte-range-spec

+   values MUST ignore the header field that includes that byte-range-

+   set.

+

+   If the last-byte-pos value is absent, or if the value is greater than

+   or equal to the current length of the entity-body, last-byte-pos is

+   taken to be equal to one less than the current length of the entity-

+   body in bytes.

+

+   By its choice of last-byte-pos, a client can limit the number of

+   bytes retrieved without knowing the size of the entity.

+

+       suffix-byte-range-spec = "-" suffix-length

+       suffix-length = 1*DIGIT

+

+   A suffix-byte-range-spec is used to specify the suffix of the

+   entity-body, of a length given by the suffix-length value. (That is,

+   this form specifies the last N bytes of an entity-body.) If the

+   entity is shorter than the specified suffix-length, the entire

+   entity-body is used.

+

+   If a syntactically valid byte-range-set includes at least one byte-

+   range-spec whose first-byte-pos is less than the current length of

+   the entity-body, or at least one suffix-byte-range-spec with a non-

+   zero suffix-length, then the byte-range-set is satisfiable.

+   Otherwise, the byte-range-set is unsatisfiable. If the byte-range-set

+   is unsatisfiable, the server SHOULD return a response with a status

+   of 416 (Requested range not satisfiable). Otherwise, the server

+   SHOULD return a response with a status of 206 (Partial Content)

+   containing the satisfiable ranges of the entity-body.

+

+   Examples of byte-ranges-specifier values (assuming an entity-body of

+   length 10000):

+

+      - The first 500 bytes (byte offsets 0-499, inclusive):  bytes=0-

+        499

+

+      - The second 500 bytes (byte offsets 500-999, inclusive):

+        bytes=500-999

+

+      - The final 500 bytes (byte offsets 9500-9999, inclusive):

+        bytes=-500

+

+      - Or bytes=9500-

+

+      - The first and last bytes only (bytes 0 and 9999):  bytes=0-0,-1

+

+      - Several legal but not canonical specifications of the second 500

+        bytes (byte offsets 500-999, inclusive):

+         bytes=500-600,601-999

+         bytes=500-700,601-999

+

+14.35.2 Range Retrieval Requests

+

+   HTTP retrieval requests using conditional or unconditional GET

+   methods MAY request one or more sub-ranges of the entity, instead of

+   the entire entity, using the Range request header, which applies to

+   the entity returned as the result of the request:

+

+      Range = "Range" ":" ranges-specifier

+

+   A server MAY ignore the Range header. However, HTTP/1.1 origin

+   servers and intermediate caches ought to support byte ranges when

+   possible, since Range supports efficient recovery from partially

+   failed transfers, and supports efficient partial retrieval of large

+   entities.

+

+   If the server supports the Range header and the specified range or

+   ranges are appropriate for the entity:

+

+      - The presence of a Range header in an unconditional GET modifies

+        what is returned if the GET is otherwise successful. In other

+        words, the response carries a status code of 206 (Partial

+        Content) instead of 200 (OK).

+

+      - The presence of a Range header in a conditional GET (a request

+        using one or both of If-Modified-Since and If-None-Match, or

+        one or both of If-Unmodified-Since and If-Match) modifies what

+        is returned if the GET is otherwise successful and the

+        condition is true. It does not affect the 304 (Not Modified)

+        response returned if the conditional is false.

+

+   In some cases, it might be more appropriate to use the If-Range

+   header (see section 14.27) in addition to the Range header.

+

+   If a proxy that supports ranges receives a Range request, forwards

+   the request to an inbound server, and receives an entire entity in

+   reply, it SHOULD only return the requested range to its client. It

+   SHOULD store the entire received response in its cache if that is

+   consistent with its cache allocation policies.

+

+14.36 Referer

+

+   The Referer[sic] request-header field allows the client to specify,

+   for the server's benefit, the address (URI) of the resource from

+   which the Request-URI was obtained (the "referrer", although the

+   header field is misspelled.) The Referer request-header allows a

+   server to generate lists of back-links to resources for interest,

+   logging, optimized caching, etc. It also allows obsolete or mistyped

+   links to be traced for maintenance. The Referer field MUST NOT be

+   sent if the Request-URI was obtained from a source that does not have

+   its own URI, such as input from the user keyboard.

+

+       Referer        = "Referer" ":" ( absoluteURI | relativeURI )

+

+   Example:

+

+       Referer: <a href="http://www.w3.org/hypertext/DataSources/Overview.html">http://www.w3.org/hypertext/DataSources/Overview.html</a>

+

+   If the field value is a relative URI, it SHOULD be interpreted

+   relative to the Request-URI. The URI MUST NOT include a fragment. See

+   section 15.1.3 for security considerations.

+

+14.37 Retry-After

+

+   The Retry-After response-header field can be used with a 503 (Service

+   Unavailable) response to indicate how long the service is expected to

+   be unavailable to the requesting client. This field MAY also be used

+   with any 3xx (Redirection) response to indicate the minimum time the

+   user-agent is asked wait before issuing the redirected request. The

+   value of this field can be either an HTTP-date or an integer number

+   of seconds (in decimal) after the time of the response.

+

+       Retry-After  = "Retry-After" ":" ( HTTP-date | delta-seconds )

+

+   Two examples of its use are

+

+       Retry-After: Fri, 31 Dec 1999 23:59:59 GMT

+       Retry-After: 120

+

+   In the latter example, the delay is 2 minutes.

+

+14.38 Server

+

+   The Server response-header field contains information about the

+   software used by the origin server to handle the request. The field

+   can contain multiple product tokens (section 3.8) and comments

+   identifying the server and any significant subproducts. The product

+   tokens are listed in order of their significance for identifying the

+   application.

+

+       Server         = "Server" ":" 1*( product | comment )

+

+   Example:

+

+       Server: CERN/3.0 libwww/2.17

+

+   If the response is being forwarded through a proxy, the proxy

+   application MUST NOT modify the Server response-header. Instead, it

+   SHOULD include a Via field (as described in section 14.45).

+

+      Note: Revealing the specific software version of the server might

+      allow the server machine to become more vulnerable to attacks

+      against software that is known to contain security holes. Server

+      implementors are encouraged to make this field a configurable

+      option.

+

+14.39 TE

+

+   The TE request-header field indicates what extension transfer-codings

+   it is willing to accept in the response and whether or not it is

+   willing to accept trailer fields in a chunked transfer-coding. Its

+   value may consist of the keyword "trailers" and/or a comma-separated

+   list of extension transfer-coding names with optional accept

+   parameters (as described in section 3.6).

+

+       TE        = "TE" ":" #( t-codings )

+       t-codings = "trailers" | ( transfer-extension [ accept-params ] )

+

+   The presence of the keyword "trailers" indicates that the client is

+   willing to accept trailer fields in a chunked transfer-coding, as

+   defined in section 3.6.1. This keyword is reserved for use with

+   transfer-coding values even though it does not itself represent a

+   transfer-coding.

+

+   Examples of its use are:

+

+       TE: deflate

+       TE:

+       TE: trailers, deflate;q=0.5

+

+   The TE header field only applies to the immediate connection.

+   Therefore, the keyword MUST be supplied within a Connection header

+   field (section 14.10) whenever TE is present in an HTTP/1.1 message.

+

+   A server tests whether a transfer-coding is acceptable, according to

+   a TE field, using these rules:

+

+      1. The "chunked" transfer-coding is always acceptable. If the

+         keyword "trailers" is listed, the client indicates that it is

+         willing to accept trailer fields in the chunked response on

+         behalf of itself and any downstream clients. The implication is

+         that, if given, the client is stating that either all

+         downstream clients are willing to accept trailer fields in the

+         forwarded response, or that it will attempt to buffer the

+         response on behalf of downstream recipients.

+

+         Note: HTTP/1.1 does not define any means to limit the size of a

+         chunked response such that a client can be assured of buffering

+         the entire response.

+

+      2. If the transfer-coding being tested is one of the transfer-

+         codings listed in the TE field, then it is acceptable unless it

+         is accompanied by a qvalue of 0. (As defined in section 3.9, a

+         qvalue of 0 means "not acceptable.")

+

+      3. If multiple transfer-codings are acceptable, then the

+         acceptable transfer-coding with the highest non-zero qvalue is

+         preferred.  The "chunked" transfer-coding always has a qvalue

+         of 1.

+

+   If the TE field-value is empty or if no TE field is present, the only

+   transfer-coding  is "chunked". A message with no transfer-coding is

+   always acceptable.

+

+14.40 Trailer

+

+   The Trailer general field value indicates that the given set of

+   header fields is present in the trailer of a message encoded with

+   chunked transfer-coding.

+

+       Trailer  = "Trailer" ":" 1#field-name

+

+   An HTTP/1.1 message SHOULD include a Trailer header field in a

+   message using chunked transfer-coding with a non-empty trailer. Doing

+   so allows the recipient to know which header fields to expect in the

+   trailer.

+

+   If no Trailer header field is present, the trailer SHOULD NOT include

+   any header fields. See section 3.6.1 for restrictions on the use of

+   trailer fields in a "chunked" transfer-coding.

+

+   Message header fields listed in the Trailer header field MUST NOT

+   include the following header fields:

+

+      . Transfer-Encoding

+

+      . Content-Length

+

+      . Trailer

+

+14.41 Transfer-Encoding

+

+   The Transfer-Encoding general-header field indicates what (if any)

+   type of transformation has been applied to the message body in order

+   to safely transfer it between the sender and the recipient. This

+   differs from the content-coding in that the transfer-coding is a

+   property of the message, not of the entity.

+

+     Transfer-Encoding       = "Transfer-Encoding" ":" 1#transfer-coding

+

+   Transfer-codings are defined in section 3.6. An example is:

+

+     Transfer-Encoding: chunked

+

+   If multiple encodings have been applied to an entity, the transfer-

+   codings MUST be listed in the order in which they were applied.

+   Additional information about the encoding parameters MAY be provided

+   by other entity-header fields not defined by this specification.

+

+   Many older HTTP/1.0 applications do not understand the Transfer-

+   Encoding header.

+

+14.42 Upgrade

+

+   The Upgrade general-header allows the client to specify what

+   additional communication protocols it supports and would like to use

+   if the server finds it appropriate to switch protocols. The server

+   MUST use the Upgrade header field within a 101 (Switching Protocols)

+   response to indicate which protocol(s) are being switched.

+

+       Upgrade        = "Upgrade" ":" 1#product

+

+   For example,

+

+       Upgrade: HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11

+

+   The Upgrade header field is intended to provide a simple mechanism

+   for transition from HTTP/1.1 to some other, incompatible protocol. It

+   does so by allowing the client to advertise its desire to use another

+   protocol, such as a later version of HTTP with a higher major version

+   number, even though the current request has been made using HTTP/1.1.

+   This eases the difficult transition between incompatible protocols by

+   allowing the client to initiate a request in the more commonly

+   supported protocol while indicating to the server that it would like

+   to use a "better" protocol if available (where "better" is determined

+   by the server, possibly according to the nature of the method and/or

+   resource being requested).

+

+   The Upgrade header field only applies to switching application-layer

+   protocols upon the existing transport-layer connection. Upgrade

+   cannot be used to insist on a protocol change; its acceptance and use

+   by the server is optional. The capabilities and nature of the

+   application-layer communication after the protocol change is entirely

+   dependent upon the new protocol chosen, although the first action

+   after changing the protocol MUST be a response to the initial HTTP

+   request containing the Upgrade header field.

+

+   The Upgrade header field only applies to the immediate connection.

+   Therefore, the upgrade keyword MUST be supplied within a Connection

+   header field (section 14.10) whenever Upgrade is present in an

+   HTTP/1.1 message.

+

+   The Upgrade header field cannot be used to indicate a switch to a

+   protocol on a different connection. For that purpose, it is more

+   appropriate to use a 301, 302, 303, or 305 redirection response.

+

+   This specification only defines the protocol name "HTTP" for use by

+   the family of Hypertext Transfer Protocols, as defined by the HTTP

+   version rules of section 3.1 and future updates to this

+   specification. Any token can be used as a protocol name; however, it

+   will only be useful if both the client and server associate the name

+   with the same protocol.

+

+14.43 User-Agent

+

+   The User-Agent request-header field contains information about the

+   user agent originating the request. This is for statistical purposes,

+   the tracing of protocol violations, and automated recognition of user

+   agents for the sake of tailoring responses to avoid particular user

+   agent limitations. User agents SHOULD include this field with

+   requests. The field can contain multiple product tokens (section 3.8)

+   and comments identifying the agent and any subproducts which form a

+   significant part of the user agent. By convention, the product tokens

+   are listed in order of their significance for identifying the

+   application.

+

+       User-Agent     = "User-Agent" ":" 1*( product | comment )

+

+   Example:

+

+       User-Agent: CERN-LineMode/2.15 libwww/2.17b3

+

+14.44 Vary

+

+   The Vary field value indicates the set of request-header fields that

+   fully determines, while the response is fresh, whether a cache is

+   permitted to use the response to reply to a subsequent request

+   without revalidation. For uncacheable or stale responses, the Vary

+   field value advises the user agent about the criteria that were used

+   to select the representation. A Vary field value of "*" implies that

+   a cache cannot determine from the request headers of a subsequent

+   request whether this response is the appropriate representation. See

+   section 13.6 for use of the Vary header field by caches.

+

+       Vary  = "Vary" ":" ( "*" | 1#field-name )

+

+   An HTTP/1.1 server SHOULD include a Vary header field with any

+   cacheable response that is subject to server-driven negotiation.

+   Doing so allows a cache to properly interpret future requests on that

+   resource and informs the user agent about the presence of negotiation

+

+   on that resource. A server MAY include a Vary header field with a

+   non-cacheable response that is subject to server-driven negotiation,

+   since this might provide the user agent with useful information about

+   the dimensions over which the response varies at the time of the

+   response.

+

+   A Vary field value consisting of a list of field-names signals that

+   the representation selected for the response is based on a selection

+   algorithm which considers ONLY the listed request-header field values

+   in selecting the most appropriate representation. A cache MAY assume

+   that the same selection will be made for future requests with the

+   same values for the listed field names, for the duration of time for

+   which the response is fresh.

+

+   The field-names given are not limited to the set of standard

+   request-header fields defined by this specification. Field names are

+   case-insensitive.

+

+   A Vary field value of "*" signals that unspecified parameters not

+   limited to the request-headers (e.g., the network address of the

+   client), play a role in the selection of the response representation.

+   The "*" value MUST NOT be generated by a proxy server; it may only be

+   generated by an origin server.

+

+14.45  Via

+

+   The Via general-header field MUST be used by gateways and proxies to

+   indicate the intermediate protocols and recipients between the user

+   agent and the server on requests, and between the origin server and

+   the client on responses. It is analogous to the "Received" field of

+   <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9] and is intended to be used for tracking message forwards,

+   avoiding request loops, and identifying the protocol capabilities of

+   all senders along the request/response chain.

+

+      Via =  "Via" ":" 1#( received-protocol received-by [ comment ] )

+      received-protocol = [ protocol-name "/" ] protocol-version

+      protocol-name     = token

+      protocol-version  = token

+      received-by       = ( host [ ":" port ] ) | pseudonym

+      pseudonym         = token

+

+   The received-protocol indicates the protocol version of the message

+   received by the server or client along each segment of the

+   request/response chain. The received-protocol version is appended to

+   the Via field value when the message is forwarded so that information

+   about the protocol capabilities of upstream applications remains

+   visible to all recipients.

+

+   The protocol-name is optional if and only if it would be "HTTP". The

+   received-by field is normally the host and optional port number of a

+   recipient server or client that subsequently forwarded the message.

+   However, if the real host is considered to be sensitive information,

+   it MAY be replaced by a pseudonym. If the port is not given, it MAY

+   be assumed to be the default port of the received-protocol.

+

+   Multiple Via field values represents each proxy or gateway that has

+   forwarded the message. Each recipient MUST append its information

+   such that the end result is ordered according to the sequence of

+   forwarding applications.

+

+   Comments MAY be used in the Via header field to identify the software

+   of the recipient proxy or gateway, analogous to the User-Agent and

+   Server header fields. However, all comments in the Via field are

+   optional and MAY be removed by any recipient prior to forwarding the

+   message.

+

+   For example, a request message could be sent from an HTTP/1.0 user

+   agent to an internal proxy code-named "fred", which uses HTTP/1.1 to

+   forward the request to a public proxy at nowhere.com, which completes

+   the request by forwarding it to the origin server at www.ics.uci.edu.

+   The request received by www.ics.uci.edu would then have the following

+   Via header field:

+

+       Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1)

+

+   Proxies and gateways used as a portal through a network firewall

+   SHOULD NOT, by default, forward the names and ports of hosts within

+   the firewall region. This information SHOULD only be propagated if

+   explicitly enabled. If not enabled, the received-by host of any host

+   behind the firewall SHOULD be replaced by an appropriate pseudonym

+   for that host.

+

+   For organizations that have strong privacy requirements for hiding

+   internal structures, a proxy MAY combine an ordered subsequence of

+   Via header field entries with identical received-protocol values into

+   a single such entry. For example,

+

+       Via: 1.0 ricky, 1.1 ethel, 1.1 fred, 1.0 lucy

+

+        could be collapsed to

+

+       Via: 1.0 ricky, 1.1 mertz, 1.0 lucy

+

+   Applications SHOULD NOT combine multiple entries unless they are all

+   under the same organizational control and the hosts have already been

+   replaced by pseudonyms. Applications MUST NOT combine entries which

+   have different received-protocol values.

+

+14.46 Warning

+

+   The Warning general-header field is used to carry additional

+   information about the status or transformation of a message which

+   might not be reflected in the message. This information is typically

+   used to warn about a possible lack of semantic transparency from

+   caching operations or transformations applied to the entity body of

+   the message.

+

+   Warning headers are sent with responses using:

+

+       Warning    = "Warning" ":" 1#warning-value

+

+       warning-value = warn-code SP warn-agent SP warn-text

+                                             [SP warn-date]

+

+       warn-code  = 3DIGIT

+       warn-agent = ( host [ ":" port ] ) | pseudonym

+                       ; the name or pseudonym of the server adding

+                       ; the Warning header, for use in debugging

+       warn-text  = quoted-string

+       warn-date  = &lt;"&gt; HTTP-date &lt;"&gt;

+

+   A response MAY carry more than one Warning header.

+

+   The warn-text SHOULD be in a natural language and character set that

+   is most likely to be intelligible to the human user receiving the

+   response. This decision MAY be based on any available knowledge, such

+   as the location of the cache or user, the Accept-Language field in a

+   request, the Content-Language field in a response, etc. The default

+   language is English and the default character set is ISO-8859-1.

+

+   If a character set other than ISO-8859-1 is used, it MUST be encoded

+   in the warn-text using the method described in <a href="http://firefly.troll.no/rfcs/rfc2047.html">RFC 2047</a> [14].

+

+   Warning headers can in general be applied to any message, however

+   some specific warn-codes are specific to caches and can only be

+   applied to response messages. New Warning headers SHOULD be added

+   after any existing Warning headers. A cache MUST NOT delete any

+   Warning header that it received with a message. However, if a cache

+   successfully validates a cache entry, it SHOULD remove any Warning

+   headers previously attached to that entry except as specified for

+

+   specific Warning codes. It MUST then add any Warning headers received

+   in the validating response. In other words, Warning headers are those

+   that would be attached to the most recent relevant response.

+

+   When multiple Warning headers are attached to a response, the user

+   agent ought to inform the user of as many of them as possible, in the

+   order that they appear in the response. If it is not possible to

+   inform the user of all of the warnings, the user agent SHOULD follow

+   these heuristics:

+

+      - Warnings that appear early in the response take priority over

+        those appearing later in the response.

+

+      - Warnings in the user's preferred character set take priority

+        over warnings in other character sets but with identical warn-

+        codes and warn-agents.

+

+   Systems that generate multiple Warning headers SHOULD order them with

+   this user agent behavior in mind.

+

+   Requirements for the behavior of caches with respect to Warnings are

+   stated in section 13.1.2.

+

+   This is a list of the currently-defined warn-codes, each with a

+   recommended warn-text in English, and a description of its meaning.

+

+   110 Response is stale

+     MUST be included whenever the returned response is stale.

+

+   111 Revalidation failed

+     MUST be included if a cache returns a stale response because an

+     attempt to revalidate the response failed, due to an inability to

+     reach the server.

+

+   112 Disconnected operation

+     SHOULD be included if the cache is intentionally disconnected from

+     the rest of the network for a period of time.

+

+   113 Heuristic expiration

+     MUST be included if the cache heuristically chose a freshness

+     lifetime greater than 24 hours and the response's age is greater

+     than 24 hours.

+

+   199 Miscellaneous warning

+     The warning text MAY include arbitrary information to be presented

+     to a human user, or logged. A system receiving this warning MUST

+     NOT take any automated action, besides presenting the warning to

+     the user.

+

+   214 Transformation applied

+     MUST be added by an intermediate cache or proxy if it applies any

+     transformation changing the content-coding (as specified in the

+     Content-Encoding header) or media-type (as specified in the

+     Content-Type header) of the response, or the entity-body of the

+     response, unless this Warning code already appears in the response.

+

+   299 Miscellaneous persistent warning

+     The warning text MAY include arbitrary information to be presented

+     to a human user, or logged. A system receiving this warning MUST

+     NOT take any automated action.

+

+   If an implementation sends a message with one or more Warning headers

+   whose version is HTTP/1.0 or lower, then the sender MUST include in

+   each warning-value a warn-date that matches the date in the response.

+

+   If an implementation receives a message with a warning-value that

+   includes a warn-date, and that warn-date is different from the Date

+   value in the response, then that warning-value MUST be deleted from

+   the message before storing, forwarding, or using it. (This prevents

+   bad consequences of naive caching of Warning header fields.) If all

+   of the warning-values are deleted for this reason, the Warning header

+   MUST be deleted as well.

+

+14.47 WWW-Authenticate

+

+   The WWW-Authenticate response-header field MUST be included in 401

+   (Unauthorized) response messages. The field value consists of at

+   least one challenge that indicates the authentication scheme(s) and

+   parameters applicable to the Request-URI.

+

+       WWW-Authenticate  = "WWW-Authenticate" ":" 1#challenge

+

+   The HTTP access authentication process is described in "HTTP

+   Authentication: Basic and Digest Access Authentication" [43]. User

+   agents are advised to take special care in parsing the WWW-

+   Authenticate field value as it might contain more than one challenge,

+   or if more than one WWW-Authenticate header field is provided, the

+   contents of a challenge itself can contain a comma-separated list of

+   authentication parameters.

+

+15 Security Considerations

+

+   This section is meant to inform application developers, information

+   providers, and users of the security limitations in HTTP/1.1 as

+   described by this document. The discussion does not include

+   definitive solutions to the problems revealed, though it does make

+   some suggestions for reducing security risks.

+

+15.1 Personal Information

+

+   HTTP clients are often privy to large amounts of personal information

+   (e.g. the user's name, location, mail address, passwords, encryption

+   keys, etc.), and SHOULD be very careful to prevent unintentional

+   leakage of this information via the HTTP protocol to other sources.

+   We very strongly recommend that a convenient interface be provided

+   for the user to control dissemination of such information, and that

+   designers and implementors be particularly careful in this area.

+   History shows that errors in this area often create serious security

+   and/or privacy problems and generate highly adverse publicity for the

+   implementor's company.

+

+15.1.1 Abuse of Server Log Information

+

+   A server is in the position to save personal data about a user's

+   requests which might identify their reading patterns or subjects of

+   interest. This information is clearly confidential in nature and its

+   handling can be constrained by law in certain countries. People using

+   the HTTP protocol to provide data are responsible for ensuring that

+   such material is not distributed without the permission of any

+   individuals that are identifiable by the published results.

+

+15.1.2 Transfer of Sensitive Information

+

+   Like any generic data transfer protocol, HTTP cannot regulate the

+   content of the data that is transferred, nor is there any a priori

+   method of determining the sensitivity of any particular piece of

+   information within the context of any given request. Therefore,

+   applications SHOULD supply as much control over this information as

+   possible to the provider of that information. Four header fields are

+   worth special mention in this context: Server, Via, Referer and From.

+

+   Revealing the specific software version of the server might allow the

+   server machine to become more vulnerable to attacks against software

+   that is known to contain security holes. Implementors SHOULD make the

+   Server header field a configurable option.

+

+   Proxies which serve as a portal through a network firewall SHOULD

+   take special precautions regarding the transfer of header information

+   that identifies the hosts behind the firewall. In particular, they

+   SHOULD remove, or replace with sanitized versions, any Via fields

+   generated behind the firewall.

+

+   The Referer header allows reading patterns to be studied and reverse

+   links drawn. Although it can be very useful, its power can be abused

+   if user details are not separated from the information contained in

+

+   the Referer. Even when the personal information has been removed, the

+   Referer header might indicate a private document's URI whose

+   publication would be inappropriate.

+

+   The information sent in the From field might conflict with the user's

+   privacy interests or their site's security policy, and hence it

+   SHOULD NOT be transmitted without the user being able to disable,

+   enable, and modify the contents of the field. The user MUST be able

+   to set the contents of this field within a user preference or

+   application defaults configuration.

+

+   We suggest, though do not require, that a convenient toggle interface

+   be provided for the user to enable or disable the sending of From and

+   Referer information.

+

+   The User-Agent (section 14.43) or Server (section 14.38) header

+   fields can sometimes be used to determine that a specific client or

+   server have a particular security hole which might be exploited.

+   Unfortunately, this same information is often used for other valuable

+   purposes for which HTTP currently has no better mechanism.

+

+15.1.3 Encoding Sensitive Information in URI's

+

+   Because the source of a link might be private information or might

+   reveal an otherwise private information source, it is strongly

+   recommended that the user be able to select whether or not the

+   Referer field is sent. For example, a browser client could have a

+   toggle switch for browsing openly/anonymously, which would

+   respectively enable/disable the sending of Referer and From

+   information.

+

+   Clients SHOULD NOT include a Referer header field in a (non-secure)

+   HTTP request if the referring page was transferred with a secure

+   protocol.

+

+   Authors of services which use the HTTP protocol SHOULD NOT use GET

+   based forms for the submission of sensitive data, because this will

+   cause this data to be encoded in the Request-URI. Many existing

+   servers, proxies, and user agents will log the request URI in some

+   place where it might be visible to third parties. Servers can use

+   POST-based form submission instead

+

+15.1.4 Privacy Issues Connected to Accept Headers

+

+   Accept request-headers can reveal information about the user to all

+   servers which are accessed. The Accept-Language header in particular

+   can reveal information the user would consider to be of a private

+   nature, because the understanding of particular languages is often

+

+   strongly correlated to the membership of a particular ethnic group.

+   User agents which offer the option to configure the contents of an

+   Accept-Language header to be sent in every request are strongly

+   encouraged to let the configuration process include a message which

+   makes the user aware of the loss of privacy involved.

+

+   An approach that limits the loss of privacy would be for a user agent

+   to omit the sending of Accept-Language headers by default, and to ask

+   the user whether or not to start sending Accept-Language headers to a

+   server if it detects, by looking for any Vary response-header fields

+   generated by the server, that such sending could improve the quality

+   of service.

+

+   Elaborate user-customized accept header fields sent in every request,

+   in particular if these include quality values, can be used by servers

+   as relatively reliable and long-lived user identifiers. Such user

+   identifiers would allow content providers to do click-trail tracking,

+   and would allow collaborating content providers to match cross-server

+   click-trails or form submissions of individual users. Note that for

+   many users not behind a proxy, the network address of the host

+   running the user agent will also serve as a long-lived user

+   identifier. In environments where proxies are used to enhance

+   privacy, user agents ought to be conservative in offering accept

+   header configuration options to end users. As an extreme privacy

+   measure, proxies could filter the accept headers in relayed requests.

+   General purpose user agents which provide a high degree of header

+   configurability SHOULD warn users about the loss of privacy which can

+   be involved.

+

+15.2 Attacks Based On File and Path Names

+

+   Implementations of HTTP origin servers SHOULD be careful to restrict

+   the documents returned by HTTP requests to be only those that were

+   intended by the server administrators. If an HTTP server translates

+   HTTP URIs directly into file system calls, the server MUST take

+   special care not to serve files that were not intended to be

+   delivered to HTTP clients. For example, UNIX, Microsoft Windows, and

+   other operating systems use ".." as a path component to indicate a

+   directory level above the current one. On such a system, an HTTP

+   server MUST disallow any such construct in the Request-URI if it

+   would otherwise allow access to a resource outside those intended to

+   be accessible via the HTTP server. Similarly, files intended for

+   reference only internally to the server (such as access control

+   files, configuration files, and script code) MUST be protected from

+   inappropriate retrieval, since they might contain sensitive

+   information. Experience has shown that minor bugs in such HTTP server

+   implementations have turned into security risks.

+

+15.3 DNS Spoofing

+

+   Clients using HTTP rely heavily on the Domain Name Service, and are

+   thus generally prone to security attacks based on the deliberate

+   mis-association of IP addresses and DNS names. Clients need to be

+   cautious in assuming the continuing validity of an IP number/DNS name

+   association.

+

+   In particular, HTTP clients SHOULD rely on their name resolver for

+   confirmation of an IP number/DNS name association, rather than

+   caching the result of previous host name lookups. Many platforms

+   already can cache host name lookups locally when appropriate, and

+   they SHOULD be configured to do so. It is proper for these lookups to

+   be cached, however, only when the TTL (Time To Live) information

+   reported by the name server makes it likely that the cached

+   information will remain useful.

+

+   If HTTP clients cache the results of host name lookups in order to

+   achieve a performance improvement, they MUST observe the TTL

+   information reported by DNS.

+

+   If HTTP clients do not observe this rule, they could be spoofed when

+   a previously-accessed server's IP address changes. As network

+   renumbering is expected to become increasingly common [24], the

+   possibility of this form of attack will grow. Observing this

+   requirement thus reduces this potential security vulnerability.

+

+   This requirement also improves the load-balancing behavior of clients

+   for replicated servers using the same DNS name and reduces the

+   likelihood of a user's experiencing failure in accessing sites which

+   use that strategy.

+

+15.4 Location Headers and Spoofing

+

+   If a single server supports multiple organizations that do not trust

+   one another, then it MUST check the values of Location and Content-

+   Location headers in responses that are generated under control of

+   said organizations to make sure that they do not attempt to

+   invalidate resources over which they have no authority.

+

+15.5 Content-Disposition Issues

+

+   <a href="http://firefly.troll.no/rfcs/rfc1806.html">RFC 1806</a> [35], from which the often implemented Content-Disposition

+   (see section 19.5.1) header in HTTP is derived, has a number of very

+   serious security considerations. Content-Disposition is not part of

+   the HTTP standard, but since it is widely implemented, we are

+   documenting its use and risks for implementors. See <a href="http://firefly.troll.no/rfcs/rfc2183.html">RFC 2183</a> [49]

+   (which updates <a href="http://firefly.troll.no/rfcs/rfc1806.html">RFC 1806</a>) for details.

+

+15.6 Authentication Credentials and Idle Clients

+

+   Existing HTTP clients and user agents typically retain authentication

+   information indefinitely. HTTP/1.1. does not provide a method for a

+   server to direct clients to discard these cached credentials. This is

+   a significant defect that requires further extensions to HTTP.

+   Circumstances under which credential caching can interfere with the

+   application's security model include but are not limited to:

+

+      - Clients which have been idle for an extended period following

+        which the server might wish to cause the client to reprompt the

+        user for credentials.

+

+      - Applications which include a session termination indication

+        (such as a `logout' or `commit' button on a page) after which

+        the server side of the application `knows' that there is no

+        further reason for the client to retain the credentials.

+

+   This is currently under separate study. There are a number of work-

+   arounds to parts of this problem, and we encourage the use of

+   password protection in screen savers, idle time-outs, and other

+   methods which mitigate the security problems inherent in this

+   problem. In particular, user agents which cache credentials are

+   encouraged to provide a readily accessible mechanism for discarding

+   cached credentials under user control.

+

+15.7 Proxies and Caching

+

+   By their very nature, HTTP proxies are men-in-the-middle, and

+   represent an opportunity for man-in-the-middle attacks. Compromise of

+   the systems on which the proxies run can result in serious security

+   and privacy problems. Proxies have access to security-related

+   information, personal information about individual users and

+   organizations, and proprietary information belonging to users and

+   content providers. A compromised proxy, or a proxy implemented or

+   configured without regard to security and privacy considerations,

+   might be used in the commission of a wide range of potential attacks.

+

+   Proxy operators should protect the systems on which proxies run as

+   they would protect any system that contains or transports sensitive

+   information. In particular, log information gathered at proxies often

+   contains highly sensitive personal information, and/or information

+   about organizations. Log information should be carefully guarded, and

+   appropriate guidelines for use developed and followed. (Section

+   15.1.1).

+

+   Caching proxies provide additional potential vulnerabilities, since

+   the contents of the cache represent an attractive target for

+   malicious exploitation. Because cache contents persist after an HTTP

+   request is complete, an attack on the cache can reveal information

+   long after a user believes that the information has been removed from

+   the network. Therefore, cache contents should be protected as

+   sensitive information.

+

+   Proxy implementors should consider the privacy and security

+   implications of their design and coding decisions, and of the

+   configuration options they provide to proxy operators (especially the

+   default configuration).

+

+   Users of a proxy need to be aware that they are no trustworthier than

+   the people who run the proxy; HTTP itself cannot solve this problem.

+

+   The judicious use of cryptography, when appropriate, may suffice to

+   protect against a broad range of security and privacy attacks. Such

+   cryptography is beyond the scope of the HTTP/1.1 specification.

+

+15.7.1 Denial of Service Attacks on Proxies

+

+   They exist. They are hard to defend against. Research continues.

+   Beware.

+

+16 Acknowledgments

+

+   This specification makes heavy use of the augmented BNF and generic

+   constructs defined by David H. Crocker for <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a> [9]. Similarly, it

+   reuses many of the definitions provided by Nathaniel Borenstein and

+   Ned Freed for MIME [7]. We hope that their inclusion in this

+   specification will help reduce past confusion over the relationship

+   between HTTP and Internet mail message formats.

+

+   The HTTP protocol has evolved considerably over the years. It has

+   benefited from a large and active developer community--the many

+   people who have participated on the www-talk mailing list--and it is

+   that community which has been most responsible for the success of

+   HTTP and of the World-Wide Web in general. Marc Andreessen, Robert

+   Cailliau, Daniel W. Connolly, Bob Denny, John Franks, Jean-Francois

+   Groff, Phillip M. Hallam-Baker, Hakon W. Lie, Ari Luotonen, Rob

+   McCool, Lou Montulli, Dave Raggett, Tony Sanders, and Marc

+   VanHeyningen deserve special recognition for their efforts in

+   defining early aspects of the protocol.

+

+   This document has benefited greatly from the comments of all those

+   participating in the HTTP-WG. In addition to those already mentioned,

+   the following individuals have contributed to this specification:

+

+       Gary Adams                  Ross Patterson

+       Harald Tveit Alvestrand     Albert Lunde

+       Keith Ball                  John C. Mallery

+       Brian Behlendorf            Jean-Philippe Martin-Flatin

+       Paul Burchard               Mitra

+       Maurizio Codogno            David Morris

+       Mike Cowlishaw              Gavin Nicol

+       Roman Czyborra              Bill Perry

+       Michael A. Dolan            Jeffrey Perry

+       David J. Fiander            Scott Powers

+       Alan Freier                 Owen Rees

+       Marc Hedlund                Luigi Rizzo

+       Greg Herlihy                David Robinson

+       Koen Holtman                Marc Salomon

+       Alex Hopmann                Rich Salz

+       Bob Jernigan                Allan M. Schiffman

+       Shel Kaphan                 Jim Seidman

+       Rohit Khare                 Chuck Shotton

+       John Klensin                Eric W. Sink

+       Martijn Koster              Simon E. Spero

+       Alexei Kosut                Richard N. Taylor

+       David M. Kristol            Robert S. Thau

+       Daniel LaLiberte            Bill (BearHeart) Weinman

+       Ben Laurie                  Francois Yergeau

+       Paul J. Leach               Mary Ellen Zurko

+       Daniel DuBois               Josh Cohen

+

+   Much of the content and presentation of the caching design is due to

+   suggestions and comments from individuals including: Shel Kaphan,

+   Paul Leach, Koen Holtman, David Morris, and Larry Masinter.

+

+   Most of the specification of ranges is based on work originally done

+   by Ari Luotonen and John Franks, with additional input from Steve

+   Zilles.

+

+   Thanks to the "cave men" of Palo Alto. You know who you are.

+

+   Jim Gettys (the current editor of this document) wishes particularly

+   to thank Roy Fielding, the previous editor of this document, along

+   with John Klensin, Jeff Mogul, Paul Leach, Dave Kristol, Koen

+   Holtman, John Franks, Josh Cohen, Alex Hopmann, Scott Lawrence, and

+   Larry Masinter for their help. And thanks go particularly to Jeff

+   Mogul and Scott Lawrence for performing the "MUST/MAY/SHOULD" audit.

+

+   The Apache Group, Anselm Baird-Smith, author of Jigsaw, and Henrik

+   Frystyk implemented <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> early, and we wish to thank them for the

+   discovery of many of the problems that this document attempts to

+   rectify.

+

+17 References

+

+   [1] Alvestrand, H., "Tags for the Identification of Languages", RFC

+       1766, March 1995.

+

+   [2] Anklesaria, F., McCahill, M., Lindner, P., Johnson, D., Torrey,

+       D. and B. Alberti, "The Internet Gopher Protocol (a distributed

+       document search and retrieval protocol)", <a href="http://firefly.troll.no/rfcs/rfc1436.html">RFC 1436</a>, March 1993.

+

+   [3] Berners-Lee, T., "Universal Resource Identifiers in WWW", RFC

+       1630, June 1994.

+

+   [4] Berners-Lee, T., Masinter, L. and M. McCahill, "Uniform Resource

+       Locators (URL)", <a href="http://firefly.troll.no/rfcs/rfc1738.html">RFC 1738</a>, December 1994.

+

+   [5] Berners-Lee, T. and D. Connolly, "Hypertext Markup Language -

+       2.0", <a href="http://firefly.troll.no/rfcs/rfc1866.html">RFC 1866</a>, November 1995.

+

+   [6] Berners-Lee, T., Fielding, R. and H. Frystyk, "Hypertext Transfer

+       Protocol -- HTTP/1.0", <a href="http://firefly.troll.no/rfcs/rfc1945.html">RFC 1945</a>, May 1996.

+

+   [7] Freed, N. and N. Borenstein, "Multipurpose Internet Mail

+       Extensions (MIME) Part One: Format of Internet Message Bodies",

+       <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a>, November 1996.

+

+   [8] Braden, R., "Requirements for Internet Hosts -- Communication

+       Layers", STD 3, <a href="http://firefly.troll.no/rfcs/rfc1123.html">RFC 1123</a>, October 1989.

+

+   [9] Crocker, D., "Standard for The Format of ARPA Internet Text

+       Messages", STD 11, <a href="http://firefly.troll.no/rfcs/rfc822.html">RFC 822</a>, August 1982.

+

+   [10] Davis, F., Kahle, B., Morris, H., Salem, J., Shen, T., Wang, R.,

+        Sui, J., and M. Grinbaum, "WAIS Interface Protocol Prototype

+        Functional Specification," (v1.5), Thinking Machines

+        Corporation, April 1990.

+

+   [11] Fielding, R., "Relative Uniform Resource Locators", <a href="http://firefly.troll.no/rfcs/rfc1808.html">RFC 1808</a>,

+        June 1995.

+

+   [12] Horton, M. and R. Adams, "Standard for Interchange of USENET

+        Messages", <a href="http://firefly.troll.no/rfcs/rfc1036.html">RFC 1036</a>, December 1987.

+

+   [13] Kantor, B. and P. Lapsley, "Network News Transfer Protocol", RFC

+        977, February 1986.

+

+   [14] Moore, K., "MIME (Multipurpose Internet Mail Extensions) Part

+        Three: Message Header Extensions for Non-ASCII Text", <a href="http://firefly.troll.no/rfcs/rfc2047.html">RFC 2047</a>,

+        November 1996.

+

+   [15] Nebel, E. and L. Masinter, "Form-based File Upload in HTML", RFC

+        1867, November 1995.

+

+   [16] Postel, J., "Simple Mail Transfer Protocol", STD 10, <a href="http://firefly.troll.no/rfcs/rfc821.html">RFC 821</a>,

+        August 1982.

+

+   [17] Postel, J., "Media Type Registration Procedure", <a href="http://firefly.troll.no/rfcs/rfc1590.html">RFC 1590</a>,

+        November 1996.

+

+   [18] Postel, J. and J. Reynolds, "File Transfer Protocol", STD 9, RFC

+        959, October 1985.

+

+   [19] Reynolds, J. and J. Postel, "Assigned Numbers", STD 2, <a href="http://firefly.troll.no/rfcs/rfc1700.html">RFC 1700</a>,

+        October 1994.

+

+   [20] Sollins, K. and L. Masinter, "Functional Requirements for

+        Uniform Resource Names", <a href="http://firefly.troll.no/rfcs/rfc1737.html">RFC 1737</a>, December 1994.

+

+   [21] US-ASCII. Coded Character Set - 7-Bit American Standard Code for

+        Information Interchange. Standard ANSI X3.4-1986, ANSI, 1986.

+

+   [22] ISO-8859. International Standard -- Information Processing --

+        8-bit Single-Byte Coded Graphic Character Sets --

+        Part 1: Latin alphabet No. 1, ISO-8859-1:1987.

+        Part 2: Latin alphabet No. 2, ISO-8859-2, 1987.

+        Part 3: Latin alphabet No. 3, ISO-8859-3, 1988.

+        Part 4: Latin alphabet No. 4, ISO-8859-4, 1988.

+        Part 5: Latin/Cyrillic alphabet, ISO-8859-5, 1988.

+        Part 6: Latin/Arabic alphabet, ISO-8859-6, 1987.

+        Part 7: Latin/Greek alphabet, ISO-8859-7, 1987.

+        Part 8: Latin/Hebrew alphabet, ISO-8859-8, 1988.

+        Part 9: Latin alphabet No. 5, ISO-8859-9, 1990.

+

+   [23] Meyers, J. and M. Rose, "The Content-MD5 Header Field", RFC

+        1864, October 1995.

+

+   [24] Carpenter, B. and Y. Rekhter, "Renumbering Needs Work", RFC

+        1900, February 1996.

+

+   [25] Deutsch, P., "GZIP file format specification version 4.3", RFC

+        1952, May 1996.

+

+   [26] Venkata N. Padmanabhan, and Jeffrey C. Mogul. "Improving HTTP

+        Latency", Computer Networks and ISDN Systems, v. 28, pp. 25-35,

+        Dec. 1995. Slightly revised version of paper in Proc. 2nd

+        International WWW Conference '94: Mosaic and the Web, Oct. 1994,

+        which is available at

+        <a href="http://www.ncsa.uiuc.edu/SDG/IT94/Proceedings/DDay/mogul/HTTPLat">http://www.ncsa.uiuc.edu/SDG/IT94/Proceedings/DDay/mogul/HTTPLat</a>

+        ency.html.

+

+   [27] Joe Touch, John Heidemann, and Katia Obraczka. "Analysis of HTTP

+        Performance", &lt;URL: <a href="http://www.isi.edu/touch/pubs/http-perf96/">http://www.isi.edu/touch/pubs/http-perf96/</a>&gt;,

+        ISI Research Report ISI/RR-98-463, (original report dated Aug.

+        1996), USC/Information Sciences Institute, August 1998.

+

+   [28] Mills, D., "Network Time Protocol (Version 3) Specification,

+        Implementation and Analysis", <a href="http://firefly.troll.no/rfcs/rfc1305.html">RFC 1305</a>, March 1992.

+

+   [29] Deutsch, P., "DEFLATE Compressed Data Format Specification

+        version 1.3", <a href="http://firefly.troll.no/rfcs/rfc1951.html">RFC 1951</a>, May 1996.

+

+   [30] S. Spero, "Analysis of HTTP Performance Problems,"

+        <a href="http://sunsite.unc.edu/mdma-release/http-prob.html">http://sunsite.unc.edu/mdma-release/http-prob.html</a>.

+

+   [31] Deutsch, P. and J. Gailly, "ZLIB Compressed Data Format

+        Specification version 3.3", <a href="http://firefly.troll.no/rfcs/rfc1950.html">RFC 1950</a>, May 1996.

+

+   [32] Franks, J., Hallam-Baker, P., Hostetler, J., Leach, P.,

+        Luotonen, A., Sink, E. and L. Stewart, "An Extension to HTTP:

+        Digest Access Authentication", <a href="http://firefly.troll.no/rfcs/rfc2069.html">RFC 2069</a>, January 1997.

+

+   [33] Fielding, R., Gettys, J., Mogul, J., Frystyk, H. and T.

+        Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1", RFC

+        2068, January 1997.

+

+   [34] Bradner, S., "Key words for use in RFCs to Indicate Requirement

+        Levels", BCP 14, <a href="http://firefly.troll.no/rfcs/rfc2119.html">RFC 2119</a>, March 1997.

+

+   [35] Troost, R. and Dorner, S., "Communicating Presentation

+        Information in Internet Messages: The Content-Disposition

+        Header", <a href="http://firefly.troll.no/rfcs/rfc1806.html">RFC 1806</a>, June 1995.

+

+   [36] Mogul, J., Fielding, R., Gettys, J. and H. Frystyk, "Use and

+        Interpretation of HTTP Version Numbers", <a href="http://firefly.troll.no/rfcs/rfc2145.html">RFC 2145</a>, May 1997.

+        [jg639]

+

+   [37] Palme, J., "Common Internet Message Headers", <a href="http://firefly.troll.no/rfcs/rfc2076.html">RFC 2076</a>, February

+        1997. [jg640]

+

+   [38] Yergeau, F., "UTF-8, a transformation format of Unicode and

+        ISO-10646", <a href="http://firefly.troll.no/rfcs/rfc2279.html">RFC 2279</a>, January 1998. [jg641]

+

+   [39] Nielsen, H.F., Gettys, J., Baird-Smith, A., Prud'hommeaux, E.,

+        Lie, H., and C. Lilley. "Network Performance Effects of

+        HTTP/1.1, CSS1, and PNG," Proceedings of ACM SIGCOMM '97, Cannes

+        France, September 1997.[jg642]

+

+   [40] Freed, N. and N. Borenstein, "Multipurpose Internet Mail

+        Extensions (MIME) Part Two: Media Types", <a href="http://firefly.troll.no/rfcs/rfc2046.html">RFC 2046</a>, November

+        1996. [jg643]

+

+   [41] Alvestrand, H., "IETF Policy on Character Sets and Languages",

+        BCP 18, <a href="http://firefly.troll.no/rfcs/rfc2277.html">RFC 2277</a>, January 1998. [jg644]

+

+   [42] Berners-Lee, T., Fielding, R. and L. Masinter, "Uniform Resource

+        Identifiers (URI): Generic Syntax and Semantics", <a href="http://firefly.troll.no/rfcs/rfc2396.html">RFC 2396</a>,

+        August 1998. [jg645]

+

+   [43] Franks, J., Hallam-Baker, P., Hostetler, J., Lawrence, S.,

+        Leach, P., Luotonen, A., Sink, E. and L. Stewart, "HTTP

+        Authentication: Basic and Digest Access Authentication", RFC

+        2617, June 1999. [jg646]

+

+   [44] Luotonen, A., "Tunneling TCP based protocols through Web proxy

+        servers," Work in Progress. [jg647]

+

+   [45] Palme, J. and A. Hopmann, "MIME E-mail Encapsulation of

+        Aggregate Documents, such as HTML (MHTML)", <a href="http://firefly.troll.no/rfcs/rfc2110.html">RFC 2110</a>, March

+        1997.

+

+   [46] Bradner, S., "The Internet Standards Process -- Revision 3", BCP

+        9, <a href="http://firefly.troll.no/rfcs/rfc2026.html">RFC 2026</a>, October 1996.

+

+   [47] Masinter, L., "Hyper Text Coffee Pot Control Protocol

+        (HTCPCP/1.0)", <a href="http://firefly.troll.no/rfcs/rfc2324.html">RFC 2324</a>, 1 April 1998.

+

+   [48] Freed, N. and N. Borenstein, "Multipurpose Internet Mail

+        Extensions (MIME) Part Five: Conformance Criteria and Examples",

+        <a href="http://firefly.troll.no/rfcs/rfc2049.html">RFC 2049</a>, November 1996.

+

+   [49] Troost, R., Dorner, S. and K. Moore, "Communicating Presentation

+        Information in Internet Messages: The Content-Disposition Header

+        Field", <a href="http://firefly.troll.no/rfcs/rfc2183.html">RFC 2183</a>, August 1997.

+

+18 Authors' Addresses

+

+   Roy T. Fielding

+   Information and Computer Science

+   University of California, Irvine

+   Irvine, CA 92697-3425, USA

+

+   Fax: +1 (949) 824-1715

+   EMail: <a href="mailto:fielding@ics.uci.edu">fielding@ics.uci.edu</a>

+

+   James Gettys

+   World Wide Web Consortium

+   MIT Laboratory for Computer Science

+   545 Technology Square

+   Cambridge, MA 02139, USA

+

+   Fax: +1 (617) 258 8682

+   EMail: <a href="mailto:jg@w3.org">jg@w3.org</a>

+

+   Jeffrey C. Mogul

+   Western Research Laboratory

+   Compaq Computer Corporation

+   250 University Avenue

+   Palo Alto, California, 94305, USA

+

+   EMail: <a href="mailto:mogul@wrl.dec.com">mogul@wrl.dec.com</a>

+

+   Henrik Frystyk Nielsen

+   World Wide Web Consortium

+   MIT Laboratory for Computer Science

+   545 Technology Square

+   Cambridge, MA 02139, USA

+

+   Fax: +1 (617) 258 8682

+   EMail: <a href="mailto:frystyk@w3.org">frystyk@w3.org</a>

+

+   Larry Masinter

+   Xerox Corporation

+   3333 Coyote Hill Road

+   Palo Alto, CA 94034, USA

+

+   EMail: <a href="mailto:masinter@parc.xerox.com">masinter@parc.xerox.com</a>

+

+   Paul J. Leach

+   Microsoft Corporation

+   1 Microsoft Way

+   Redmond, WA 98052, USA

+

+   EMail: <a href="mailto:paulle@microsoft.com">paulle@microsoft.com</a>

+

+   Tim Berners-Lee

+   Director, World Wide Web Consortium

+   MIT Laboratory for Computer Science

+   545 Technology Square

+   Cambridge, MA 02139, USA

+

+   Fax: +1 (617) 258 8682

+   EMail: <a href="mailto:timbl@w3.org">timbl@w3.org</a>

+

+19 Appendices

+

+19.1 Internet Media Type message/http and application/http

+

+   In addition to defining the HTTP/1.1 protocol, this document serves

+   as the specification for the Internet media type "message/http" and

+   "application/http". The message/http type can be used to enclose a

+   single HTTP request or response message, provided that it obeys the

+   MIME restrictions for all "message" types regarding line length and

+   encodings. The application/http type can be used to enclose a

+   pipeline of one or more HTTP request or response messages (not

+   intermixed). The following is to be registered with IANA [17].

+

+       Media Type name:         message

+       Media subtype name:      http

+       Required parameters:     none

+       Optional parameters:     version, msgtype

+        version: The HTTP-Version number of the enclosed message

+                 (e.g., "1.1"). If not present, the version can be

+                 determined from the first line of the body.

+        msgtype: The message type -- "request" or "response". If not

+                 present, the type can be determined from the first

+                 line of the body.

+       Encoding considerations: only "7bit", "8bit", or "binary" are

+                                permitted

+       Security considerations: none

+

+       Media Type name:         application

+       Media subtype name:      http

+       Required parameters:     none

+       Optional parameters:     version, msgtype

+        version: The HTTP-Version number of the enclosed messages

+                 (e.g., "1.1"). If not present, the version can be

+                 determined from the first line of the body.

+        msgtype: The message type -- "request" or "response". If not

+                 present, the type can be determined from the first

+                 line of the body.

+       Encoding considerations: HTTP messages enclosed by this type

+                 are in "binary" format; use of an appropriate

+                 Content-Transfer-Encoding is required when

+                 transmitted via E-mail.

+       Security considerations: none

+

+19.2 Internet Media Type multipart/byteranges

+

+   When an HTTP 206 (Partial Content) response message includes the

+   content of multiple ranges (a response to a request for multiple

+   non-overlapping ranges), these are transmitted as a multipart

+   message-body. The media type for this purpose is called

+   "multipart/byteranges".

+

+   The multipart/byteranges media type includes two or more parts, each

+   with its own Content-Type and Content-Range fields. The required

+   boundary parameter specifies the boundary string used to separate

+   each body-part.

+

+       Media Type name:         multipart

+       Media subtype name:      byteranges

+       Required parameters:     boundary

+       Optional parameters:     none

+       Encoding considerations: only "7bit", "8bit", or "binary" are

+                                permitted

+       Security considerations: none

+

+   For example:

+

+   HTTP/1.1 206 Partial Content

+   Date: Wed, 15 Nov 1995 06:25:24 GMT

+   Last-Modified: Wed, 15 Nov 1995 04:58:08 GMT

+   Content-type: multipart/byteranges; boundary=THIS_STRING_SEPARATES

+

+   --THIS_STRING_SEPARATES

+   Content-type: application/pdf

+   Content-range: bytes 500-999/8000

+

+   ...the first range...

+   --THIS_STRING_SEPARATES

+   Content-type: application/pdf

+   Content-range: bytes 7000-7999/8000

+

+   ...the second range

+   --THIS_STRING_SEPARATES--

+

+      Notes:

+

+      1) Additional CRLFs may precede the first boundary string in the

+         entity.

+

+      2) Although <a href="http://firefly.troll.no/rfcs/rfc2046.html">RFC 2046</a> [40] permits the boundary string to be

+         quoted, some existing implementations handle a quoted boundary

+         string incorrectly.

+

+      3) A number of browsers and servers were coded to an early draft

+         of the byteranges specification to use a media type of

+         multipart/x-byteranges, which is almost, but not quite

+         compatible with the version documented in HTTP/1.1.

+

+19.3 Tolerant Applications

+

+   Although this document specifies the requirements for the generation

+   of HTTP/1.1 messages, not all applications will be correct in their

+   implementation. We therefore recommend that operational applications

+   be tolerant of deviations whenever those deviations can be

+   interpreted unambiguously.

+

+   Clients SHOULD be tolerant in parsing the Status-Line and servers

+   tolerant when parsing the Request-Line. In particular, they SHOULD

+   accept any amount of SP or HT characters between fields, even though

+   only a single SP is required.

+

+   The line terminator for message-header fields is the sequence CRLF.

+   However, we recommend that applications, when parsing such headers,

+   recognize a single LF as a line terminator and ignore the leading CR.

+

+   The character set of an entity-body SHOULD be labeled as the lowest

+   common denominator of the character codes used within that body, with

+   the exception that not labeling the entity is preferred over labeling

+   the entity with the labels US-ASCII or ISO-8859-1. See section 3.7.1

+   and 3.4.1.

+

+   Additional rules for requirements on parsing and encoding of dates

+   and other potential problems with date encodings include:

+

+      - HTTP/1.1 clients and caches SHOULD assume that an <a href="http://firefly.troll.no/rfcs/rfc850.html">RFC-850</a> date

+        which appears to be more than 50 years in the future is in fact

+        in the past (this helps solve the "year 2000" problem).

+

+      - An HTTP/1.1 implementation MAY internally represent a parsed

+        Expires date as earlier than the proper value, but MUST NOT

+        internally represent a parsed Expires date as later than the

+        proper value.

+

+      - All expiration-related calculations MUST be done in GMT. The

+        local time zone MUST NOT influence the calculation or comparison

+        of an age or expiration time.

+

+      - If an HTTP header incorrectly carries a date value with a time

+        zone other than GMT, it MUST be converted into GMT using the

+        most conservative possible conversion.

+

+19.4 Differences Between HTTP Entities and <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a> Entities

+

+   HTTP/1.1 uses many of the constructs defined for Internet Mail (RFC

+   822 [9]) and the Multipurpose Internet Mail Extensions (MIME [7]) to

+   allow entities to be transmitted in an open variety of

+   representations and with extensible mechanisms. However, <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a>

+   discusses mail, and HTTP has a few features that are different from

+   those described in <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a>. These differences were carefully chosen

+   to optimize performance over binary connections, to allow greater

+   freedom in the use of new media types, to make date comparisons

+   easier, and to acknowledge the practice of some early HTTP servers

+   and clients.

+

+   This appendix describes specific areas where HTTP differs from RFC

+   2045. Proxies and gateways to strict MIME environments SHOULD be

+   aware of these differences and provide the appropriate conversions

+   where necessary. Proxies and gateways from MIME environments to HTTP

+   also need to be aware of the differences because some conversions

+   might be required.

+

+19.4.1 MIME-Version

+

+   HTTP is not a MIME-compliant protocol. However, HTTP/1.1 messages MAY

+   include a single MIME-Version general-header field to indicate what

+   version of the MIME protocol was used to construct the message. Use

+   of the MIME-Version header field indicates that the message is in

+   full compliance with the MIME protocol (as defined in <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a>[7]).

+   Proxies/gateways are responsible for ensuring full compliance (where

+   possible) when exporting HTTP messages to strict MIME environments.

+

+       MIME-Version   = "MIME-Version" ":" 1*DIGIT "." 1*DIGIT

+

+   MIME version "1.0" is the default for use in HTTP/1.1. However,

+   HTTP/1.1 message parsing and semantics are defined by this document

+   and not the MIME specification.

+

+19.4.2 Conversion to Canonical Form

+

+   <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a> [7] requires that an Internet mail entity be converted to

+   canonical form prior to being transferred, as described in section 4

+   of <a href="http://firefly.troll.no/rfcs/rfc2049.html">RFC 2049</a> [48]. Section 3.7.1 of this document describes the forms

+   allowed for subtypes of the "text" media type when transmitted over

+   HTTP. <a href="http://firefly.troll.no/rfcs/rfc2046.html">RFC 2046</a> requires that content with a type of "text" represent

+   line breaks as CRLF and forbids the use of CR or LF outside of line

+

+   break sequences. HTTP allows CRLF, bare CR, and bare LF to indicate a

+   line break within text content when a message is transmitted over

+   HTTP.

+

+   Where it is possible, a proxy or gateway from HTTP to a strict MIME

+   environment SHOULD translate all line breaks within the text media

+   types described in section 3.7.1 of this document to the <a href="http://firefly.troll.no/rfcs/rfc2049.html">RFC 2049</a>

+   canonical form of CRLF. Note, however, that this might be complicated

+   by the presence of a Content-Encoding and by the fact that HTTP

+   allows the use of some character sets which do not use octets 13 and

+   10 to represent CR and LF, as is the case for some multi-byte

+   character sets.

+

+   Implementors should note that conversion will break any cryptographic

+   checksums applied to the original content unless the original content

+   is already in canonical form. Therefore, the canonical form is

+   recommended for any content that uses such checksums in HTTP.

+

+19.4.3 Conversion of Date Formats

+

+   HTTP/1.1 uses a restricted set of date formats (section 3.3.1) to

+   simplify the process of date comparison. Proxies and gateways from

+   other protocols SHOULD ensure that any Date header field present in a

+   message conforms to one of the HTTP/1.1 formats and rewrite the date

+   if necessary.

+

+19.4.4 Introduction of Content-Encoding

+

+   <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a> does not include any concept equivalent to HTTP/1.1's

+   Content-Encoding header field. Since this acts as a modifier on the

+   media type, proxies and gateways from HTTP to MIME-compliant

+   protocols MUST either change the value of the Content-Type header

+   field or decode the entity-body before forwarding the message. (Some

+   experimental applications of Content-Type for Internet mail have used

+   a media-type parameter of ";conversions=&lt;content-coding&gt;" to perform

+   a function equivalent to Content-Encoding. However, this parameter is

+   not part of <a href="http://firefly.troll.no/rfcs/rfc2045.html">RFC 2045</a>.)

+

+19.4.5 No Content-Transfer-Encoding

+

+   HTTP does not use the Content-Transfer-Encoding (CTE) field of RFC

+   2045. Proxies and gateways from MIME-compliant protocols to HTTP MUST

+   remove any non-identity CTE ("quoted-printable" or "base64") encoding

+   prior to delivering the response message to an HTTP client.

+

+   Proxies and gateways from HTTP to MIME-compliant protocols are

+   responsible for ensuring that the message is in the correct format

+   and encoding for safe transport on that protocol, where "safe

+

+   transport" is defined by the limitations of the protocol being used.

+   Such a proxy or gateway SHOULD label the data with an appropriate

+   Content-Transfer-Encoding if doing so will improve the likelihood of

+   safe transport over the destination protocol.

+

+19.4.6 Introduction of Transfer-Encoding

+

+   HTTP/1.1 introduces the Transfer-Encoding header field (section

+   14.41). Proxies/gateways MUST remove any transfer-coding prior to

+   forwarding a message via a MIME-compliant protocol.

+

+   A process for decoding the "chunked" transfer-coding (section 3.6)

+   can be represented in pseudo-code as:

+

+       length := 0

+       read chunk-size, chunk-extension (if any) and CRLF

+       while (chunk-size &gt; 0) {

+          read chunk-data and CRLF

+          append chunk-data to entity-body

+          length := length + chunk-size

+          read chunk-size and CRLF

+       }

+       read entity-header

+       while (entity-header not empty) {

+          append entity-header to existing header fields

+          read entity-header

+       }

+       Content-Length := length

+       Remove "chunked" from Transfer-Encoding

+

+19.4.7 MHTML and Line Length Limitations

+

+   HTTP implementations which share code with MHTML [45] implementations

+   need to be aware of MIME line length limitations. Since HTTP does not

+   have this limitation, HTTP does not fold long lines. MHTML messages

+   being transported by HTTP follow all conventions of MHTML, including

+   line length limitations and folding, canonicalization, etc., since

+   HTTP transports all message-bodies as payload (see section 3.7.2) and

+   does not interpret the content or any MIME header lines that might be

+   contained therein.

+

+19.5 Additional Features

+

+   <a href="http://firefly.troll.no/rfcs/rfc1945.html">RFC 1945</a> and <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> document protocol elements used by some

+   existing HTTP implementations, but not consistently and correctly

+   across most HTTP/1.1 applications. Implementors are advised to be

+   aware of these features, but cannot rely upon their presence in, or

+   interoperability with, other HTTP/1.1 applications. Some of these

+

+   describe proposed experimental features, and some describe features

+   that experimental deployment found lacking that are now addressed in

+   the base HTTP/1.1 specification.

+

+   A number of other headers, such as Content-Disposition and Title,

+   from SMTP and MIME are also often implemented (see <a href="http://firefly.troll.no/rfcs/rfc2076.html">RFC 2076</a> [37]).

+

+19.5.1 Content-Disposition

+

+   The Content-Disposition response-header field has been proposed as a

+   means for the origin server to suggest a default filename if the user

+   requests that the content is saved to a file. This usage is derived

+   from the definition of Content-Disposition in <a href="http://firefly.troll.no/rfcs/rfc1806.html">RFC 1806</a> [35].

+

+        content-disposition = "Content-Disposition" ":"

+                              disposition-type *( ";" disposition-parm )

+        disposition-type = "attachment" | disp-extension-token

+        disposition-parm = filename-parm | disp-extension-parm

+        filename-parm = "filename" "=" quoted-string

+        disp-extension-token = token

+        disp-extension-parm = token "=" ( token | quoted-string )

+

+   An example is

+

+        Content-Disposition: attachment; filename="fname.ext"

+

+   The receiving user agent SHOULD NOT respect any directory path

+   information present in the filename-parm parameter, which is the only

+   parameter believed to apply to HTTP implementations at this time. The

+   filename SHOULD be treated as a terminal component only.

+

+   If this header is used in a response with the application/octet-

+   stream content-type, the implied suggestion is that the user agent

+   should not display the response, but directly enter a `save response

+   as...' dialog.

+

+   See section 15.5 for Content-Disposition security issues.

+

+19.6 Compatibility with Previous Versions

+

+   It is beyond the scope of a protocol specification to mandate

+   compliance with previous versions. HTTP/1.1 was deliberately

+   designed, however, to make supporting previous versions easy. It is

+   worth noting that, at the time of composing this specification

+   (1996), we would expect commercial HTTP/1.1 servers to:

+

+      - recognize the format of the Request-Line for HTTP/0.9, 1.0, and

+        1.1 requests;

+

+      - understand any valid request in the format of HTTP/0.9, 1.0, or

+        1.1;

+

+      - respond appropriately with a message in the same major version

+        used by the client.

+

+   And we would expect HTTP/1.1 clients to:

+

+      - recognize the format of the Status-Line for HTTP/1.0 and 1.1

+        responses;

+

+      - understand any valid response in the format of HTTP/0.9, 1.0, or

+        1.1.

+

+   For most implementations of HTTP/1.0, each connection is established

+   by the client prior to the request and closed by the server after

+   sending the response. Some implementations implement the Keep-Alive

+   version of persistent connections described in section 19.7.1 of RFC

+   2068 [33].

+

+19.6.1 Changes from HTTP/1.0

+

+   This section summarizes major differences between versions HTTP/1.0

+   and HTTP/1.1.

+

+19.6.1.1 Changes to Simplify Multi-homed Web Servers and Conserve IP

+         Addresses

+

+   The requirements that clients and servers support the Host request-

+   header, report an error if the Host request-header (section 14.23) is

+   missing from an HTTP/1.1 request, and accept absolute URIs (section

+   5.1.2) are among the most important changes defined by this

+   specification.

+

+   Older HTTP/1.0 clients assumed a one-to-one relationship of IP

+   addresses and servers; there was no other established mechanism for

+   distinguishing the intended server of a request than the IP address

+   to which that request was directed. The changes outlined above will

+   allow the Internet, once older HTTP clients are no longer common, to

+   support multiple Web sites from a single IP address, greatly

+   simplifying large operational Web servers, where allocation of many

+   IP addresses to a single host has created serious problems. The

+   Internet will also be able to recover the IP addresses that have been

+   allocated for the sole purpose of allowing special-purpose domain

+   names to be used in root-level HTTP URLs. Given the rate of growth of

+   the Web, and the number of servers already deployed, it is extremely

+

+   important that all implementations of HTTP (including updates to

+   existing HTTP/1.0 applications) correctly implement these

+   requirements:

+

+      - Both clients and servers MUST support the Host request-header.

+

+      - A client that sends an HTTP/1.1 request MUST send a Host header.

+

+      - Servers MUST report a 400 (Bad Request) error if an HTTP/1.1

+        request does not include a Host request-header.

+

+      - Servers MUST accept absolute URIs.

+

+19.6.2 Compatibility with HTTP/1.0 Persistent Connections

+

+   Some clients and servers might wish to be compatible with some

+   previous implementations of persistent connections in HTTP/1.0

+   clients and servers. Persistent connections in HTTP/1.0 are

+   explicitly negotiated as they are not the default behavior. HTTP/1.0

+   experimental implementations of persistent connections are faulty,

+   and the new facilities in HTTP/1.1 are designed to rectify these

+   problems. The problem was that some existing 1.0 clients may be

+   sending Keep-Alive to a proxy server that doesn't understand

+   Connection, which would then erroneously forward it to the next

+   inbound server, which would establish the Keep-Alive connection and

+   result in a hung HTTP/1.0 proxy waiting for the close on the

+   response. The result is that HTTP/1.0 clients must be prevented from

+   using Keep-Alive when talking to proxies.

+

+   However, talking to proxies is the most important use of persistent

+   connections, so that prohibition is clearly unacceptable. Therefore,

+   we need some other mechanism for indicating a persistent connection

+   is desired, which is safe to use even when talking to an old proxy

+   that ignores Connection. Persistent connections are the default for

+   HTTP/1.1 messages; we introduce a new keyword (Connection: close) for

+   declaring non-persistence. See section 14.10.

+

+   The original HTTP/1.0 form of persistent connections (the Connection:

+   Keep-Alive and Keep-Alive header) is documented in <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>. [33]

+

+19.6.3 Changes from <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>

+

+   This specification has been carefully audited to correct and

+   disambiguate key word usage; <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> had many problems in respect to

+   the conventions laid out in <a href="http://firefly.troll.no/rfcs/rfc2119.html">RFC 2119</a> [34].

+

+   Clarified which error code should be used for inbound server failures

+   (e.g. DNS failures). (Section 10.5.5).

+

+   CREATE had a race that required an Etag be sent when a resource is

+   first created. (Section 10.2.2).

+

+   Content-Base was deleted from the specification: it was not

+   implemented widely, and there is no simple, safe way to introduce it

+   without a robust extension mechanism. In addition, it is used in a

+   similar, but not identical fashion in MHTML [45].

+

+   Transfer-coding and message lengths all interact in ways that

+   required fixing exactly when chunked encoding is used (to allow for

+   transfer encoding that may not be self delimiting); it was important

+   to straighten out exactly how message lengths are computed. (Sections

+   3.6, 4.4, 7.2.2, 13.5.2, 14.13, 14.16)

+

+   A content-coding of "identity" was introduced, to solve problems

+   discovered in caching. (section 3.5)

+

+   Quality Values of zero should indicate that "I don't want something"

+   to allow clients to refuse a representation. (Section 3.9)

+

+   The use and interpretation of HTTP version numbers has been clarified

+   by <a href="http://firefly.troll.no/rfcs/rfc2145.html">RFC 2145</a>. Require proxies to upgrade requests to highest protocol

+   version they support to deal with problems discovered in HTTP/1.0

+   implementations (Section 3.1)

+

+   Charset wildcarding is introduced to avoid explosion of character set

+   names in accept headers. (Section 14.2)

+

+   A case was missed in the Cache-Control model of HTTP/1.1; s-maxage

+   was introduced to add this missing case. (Sections 13.4, 14.8, 14.9,

+   14.9.3)

+

+   The Cache-Control: max-age directive was not properly defined for

+   responses. (Section 14.9.3)

+

+   There are situations where a server (especially a proxy) does not

+   know the full length of a response but is capable of serving a

+   byterange request. We therefore need a mechanism to allow byteranges

+   with a content-range not indicating the full length of the message.

+   (Section 14.16)

+

+   Range request responses would become very verbose if all meta-data

+   were always returned; by allowing the server to only send needed

+   headers in a 206 response, this problem can be avoided. (Section

+   10.2.7, 13.5.3, and 14.27)

+

+   Fix problem with unsatisfiable range requests; there are two cases:

+   syntactic problems, and range doesn't exist in the document. The 416

+   status code was needed to resolve this ambiguity needed to indicate

+   an error for a byte range request that falls outside of the actual

+   contents of a document. (Section 10.4.17, 14.16)

+

+   Rewrite of message transmission requirements to make it much harder

+   for implementors to get it wrong, as the consequences of errors here

+   can have significant impact on the Internet, and to deal with the

+   following problems:

+

+      1. Changing "HTTP/1.1 or later" to "HTTP/1.1", in contexts where

+         this was incorrectly placing a requirement on the behavior of

+         an implementation of a future version of HTTP/1.x

+

+      2. Made it clear that user-agents should retry requests, not

+         "clients" in general.

+

+      3. Converted requirements for clients to ignore unexpected 100

+         (Continue) responses, and for proxies to forward 100 responses,

+         into a general requirement for 1xx responses.

+

+      4. Modified some TCP-specific language, to make it clearer that

+         non-TCP transports are possible for HTTP.

+

+      5. Require that the origin server MUST NOT wait for the request

+         body before it sends a required 100 (Continue) response.

+

+      6. Allow, rather than require, a server to omit 100 (Continue) if

+         it has already seen some of the request body.

+

+      7. Allow servers to defend against denial-of-service attacks and

+         broken clients.

+

+   This change adds the Expect header and 417 status code. The message

+   transmission requirements fixes are in sections 8.2, 10.4.18,

+   8.1.2.2, 13.11, and 14.20.

+

+   Proxies should be able to add Content-Length when appropriate.

+   (Section 13.5.2)

+

+   Clean up confusion between 403 and 404 responses. (Section 10.4.4,

+   10.4.5, and 10.4.11)

+

+   Warnings could be cached incorrectly, or not updated appropriately.

+   (Section 13.1.2, 13.2.4, 13.5.2, 13.5.3, 14.9.3, and 14.46) Warning

+   also needed to be a general header, as PUT or other methods may have

+   need for it in requests.

+

+   Transfer-coding had significant problems, particularly with

+   interactions with chunked encoding. The solution is that transfer-

+   codings become as full fledged as content-codings. This involves

+   adding an IANA registry for transfer-codings (separate from content

+   codings), a new header field (TE) and enabling trailer headers in the

+   future. Transfer encoding is a major performance benefit, so it was

+   worth fixing [39]. TE also solves another, obscure, downward

+   interoperability problem that could have occurred due to interactions

+   between authentication trailers, chunked encoding and HTTP/1.0

+   clients.(Section 3.6, 3.6.1, and 14.39)

+

+   The PATCH, LINK, UNLINK methods were defined but not commonly

+   implemented in previous versions of this specification. See <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a>

+   [33].

+

+   The Alternates, Content-Version, Derived-From, Link, URI, Public and

+   Content-Base header fields were defined in previous versions of this

+   specification, but not commonly implemented. See <a href="http://firefly.troll.no/rfcs/rfc2068.html">RFC 2068</a> [33].

+

+20 Index

+

+   Please see the PostScript version of this RFC for the INDEX.

+

+21.  Full Copyright Statement

+

+   Copyright (C) The Internet Society (1999).  All Rights Reserved.

+

+   This document and translations of it may be copied and furnished to

+   others, and derivative works that comment on or otherwise explain it

+   or assist in its implementation may be prepared, copied, published

+   and distributed, in whole or in part, without restriction of any

+   kind, provided that the above copyright notice and this paragraph are

+   included on all such copies and derivative works.  However, this

+   document itself may not be modified in any way, such as by removing

+   the copyright notice or references to the Internet Society or other

+   Internet organizations, except as needed for the purpose of

+   developing Internet standards in which case the procedures for

+   copyrights defined in the Internet Standards process must be

+   followed, or as required to translate it into languages other than

+   English.

+

+   The limited permissions granted above are perpetual and will not be

+   revoked by the Internet Society or its successors or assigns.

+

+   This document and the information contained herein is provided on an

+   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING

+   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING

+   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION

+   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF

+   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

+

+Acknowledgement

+

+   Funding for the RFC Editor function is currently provided by the

+   Internet Society.

+

+</pre>

+<p align="center"><script language="JavaScript"><!--

+erfc("2616");

+// --></script><a href="http://firefly.troll.no/rfccomment.php?rfcnum=2616" target="_blank" onclick="window.open('/rfccomment.php?rfcnum=2616','Popup','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=680,height=530,left=30,top=43'); return false;" )="">Comment on RFC 2616</a>

+</p>

+&nbsp;<br>

+<div align="center">

+<center>

+<table border="0" cellpadding="4" cellspacing="4" width="100%">

+<tbody><tr><td bgcolor="#d6d6c0" width="100%">

+<p><font face="Arial">Comments about this RFC:</font></p>

+<ul>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-869.html">RFC 2616: Very basic HTTP Server written in Emacs Lisp: http://www.chez.com/emarsden/downl...</a> by Alex Schröder (5/12/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-539.html">RFC 2616: If someone has got sample code for a basic HTTP/1.1 Server please let me know......</a> by Mike (2/4/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-486.html">RFC 2616: I am seeking ladies for nothing but sex that is all i want from the lady sorry...</a> by treblav (1/16/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2360.html">RFC 2616: Hello. 

+ 

+ I have realized that point 8.1.4 of the RFC 2616 is a big threat to...</a> by Doolyo (8/20/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1522.html">RFC 2616: êêêöïïäììóì::::::@::@"""@:&gt;c 

+ :::@"$$%^^*^^*((((99(

+ &lt;&lt;&gt;:"? </a> by óäöóöóöóö (12/16/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2147.html">RFC 2616: Man Such a big and boring doc.. thats why ppl shy away from RFC stuff. Make it...</a> by AnurgaM (6/15/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2277.html">RFC 2616: igeve uo  100 dolars

+ 

+ iwant password

+ 

+ farh51@hotmail.com </a> by farh (7/24/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2349.html">RFC 2616: I have realized that point 8.1.4 of this RFC is a big threat to the load speed...</a> by Doolyo (8/15/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1230.html">RFC 2616: Would it possible to extend the

+ protocol to allow another GET,

+ HEAD, POST,...</a> by CCaldwell (9/15/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-692.html">RFC 2616: Wonder if he got his lady? </a> by SinJax (3/26/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2056.html">RFC 2616: it's for shareaza that the program go fasther </a> by sylle (5/24/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-2526.html">RFC 2616: Only 2 simultaneous connections is a big threat to the load speed of HTML...</a> by Doolyo (9/30/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-736.html">RFC 2616: yo to the southampton uni coursework massive </a> by anon (4/6/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1574.html">RFC 2616: If you know everything about HTTP this rfc will be helpful to you (as a recap...</a> by just a developer (1/5/2005)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1111.html">RFC 2616: Please note that section 3.6.2, referenced in section 3.5 (page 25)

+ may most...</a> by Patrick Powell (8/12/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1354.html">RFC 2616: gtu87t 86t8o;koip]0-n  df bhvfjkhfgfter6ecvgjlhhjuhjioy uftyei vn bk.jljpoi

+ =- ...</a> by jkl (10/20/2004)</font></li>

+<li><font face="Arial"><a href="http://firefly.troll.no/qa/rfcc-1973.html">RFC 2616: I HOPE   KNOW   MANY  OF  SOME RFC </a> by MARRY (5/5/2005)</font></li>

+</ul>

+</td></tr></tbody></table> <br></center></div>

+<div align="center">

+<table border="0" cellpadding="3" cellspacing="3" width="100%">

+<tbody><tr><td width="45%">

+<p align="left">Previous: <a href="http://firefly.troll.no/rfcs/rfc2615.html">RFC 2615 - PPP over SONET/SDH</a>

+</p></td><td width="10%">&nbsp;</td><td width="45%">

+<p align="right">Next: <a href="http://firefly.troll.no/rfcs/rfc2617.html">RFC 2617 - HTTP Authentication: Basic and Digest Access Authentication</a>

+</p></td></tr></tbody></table></div><p align="right">&nbsp;</p>

+<hr noshade="noshade" size="2">

+<div align="center">[ <a href="http://firefly.troll.no/rfcs/">RFC Index</a> | <a href="http://firefly.troll.no/rfcs/rfcsearch.html">RFC Search</a> | <a href="http://firefly.troll.no/faqs/">Usenet FAQs</a> | <a href="http://firefly.troll.no/contrib/">Web FAQs</a> | <a href="http://firefly.troll.no/docs/">Documents</a> | <a href="http://www.city-data.com/">Cities</a> ]

+<p>

+</p></div>

+ <a href="http://firefly.troll.no/ftp/rfc/rfc2616.pdf">rfc2616.pdf</a>

+<small>

+<address>

+<p align="center">

+ 

+</p>

+</address>

+</small>

+</body></html>
\ No newline at end of file
diff --git a/tests/testserver/common/startup.sh b/tests/testserver/common/startup.sh
index 74990a47f6..1386314e38 100755
--- a/tests/testserver/common/startup.sh
+++ b/tests/testserver/common/startup.sh
@@ -34,7 +34,7 @@ set -ex
 # export variables
 export USER=qt-test-server
 export PASS=password
-export CONFIG=common/testdata
+export CONFIG=service/testdata
 export TESTDATA=service/testdata
 
 # add users
@@ -43,17 +43,4 @@ useradd -m -s /bin/bash $USER; echo "$USER:$PASS" | chpasswd
 # install configurations and test data
 su $USER -c "cp $CONFIG/system/passwords ~/"
 
-# modules initialization (apache2.sh, ftp-proxy.sh ...)
-for RUN_CMD
-do $RUN_CMD
-done
-
-# start multicast DNS service discovery (mDNS)
-sed -i -e "s,#domain-name=local,domain-name=${test_domain:-test-net.qt.local}," \
-    -e "s,#publish-aaaa-on-ipv4=yes,publish-aaaa-on-ipv4=no," \
-    /etc/avahi/avahi-daemon.conf
-service dbus restart
-service avahi-daemon restart
-
-# keep-alive in docker detach mode
-sleep infinity
+./startup.sh "$@"
diff --git a/tests/testserver/cyrus/cyrus.sh b/tests/testserver/cyrus/cyrus.sh
new file mode 100755
index 0000000000..92c3bfa703
--- /dev/null
+++ b/tests/testserver/cyrus/cyrus.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+#############################################################################
+##
+## Copyright (C) 2019 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the test suite of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:GPL$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 or (at your option) any later version
+## approved by the KDE Free Qt Foundation. The licenses are as published by
+## the Free Software Foundation and appearing in the file LICENSE.GPL3
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+set -ex
+
+echo "tls_cert_file: /home/qt-test-server/ssl-certs/qt-test-server-cert.pem" >> /etc/imapd.conf
+echo "tls_key_file: /home/qt-test-server/ssl-certs/private/qt-test-server-key.pem" >> /etc/imapd.conf
+chmod +3 /home/qt-test-server/ssl-certs/private/
+mkdir -m 007 -p /run/cyrus/proc
+sed -i 's/#imaps\t\tcmd="imapd/imaps\t\tcmd="imapd/' /etc/cyrus.conf
+
+service cyrus-imapd restart
diff --git a/tests/testserver/docker-compose-for-macOS.yml b/tests/testserver/docker-compose-for-macOS.yml
index aa610dfb88..c5348e27b6 100644
--- a/tests/testserver/docker-compose-for-macOS.yml
+++ b/tests/testserver/docker-compose-for-macOS.yml
@@ -12,82 +12,95 @@ version: '3.4'
 
 services:
     apache2:
-        image: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
         container_name: qt-test-server-apache2
         domainname: ${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./apache2:/service:ro
-        entrypoint: common/startup.sh
-        command: [common/ssl.sh, service/apache2.sh]
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
+                shareDir: ./common
+                serviceDir: ./apache2
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: [service/ssl.sh, service/apache2.sh]
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
         environment:
-            - test_domain=${TEST_DOMAIN}
             - test_cert="qt-test-server-host-network-cacert.pem"
 
     squid:
-        image: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
         container_name: qt-test-server-squid
         domainname: ${TEST_DOMAIN}
         depends_on:
             - apache2
-        volumes:
-            - ./common:/common:ro
-            - ./squid:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
+                shareDir: ./common
+                serviceDir: ./squid
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/squid.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     vsftpd:
-        image: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
         container_name: qt-test-server-vsftpd
         domainname: ${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./vsftpd:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
+                shareDir: ./common
+                serviceDir: ./vsftpd
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/vsftpd.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     ftp-proxy:
-        image: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
         container_name: qt-test-server-ftp-proxy
         domainname: ${TEST_DOMAIN}
         depends_on:
             - vsftpd
-        volumes:
-            - ./common:/common:ro
-            - ./ftp-proxy:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
+                shareDir: ./common
+                serviceDir: ./ftp-proxy
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/ftp-proxy.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     danted:
-        image: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
         container_name: qt-test-server-danted
         domainname: ${TEST_DOMAIN}
         depends_on:
             - apache2
             - vsftpd
             - ftp-proxy
-        volumes:
-            - ./common:/common:ro
-            - ./danted:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
+                shareDir: ./common
+                serviceDir: ./danted
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/danted.sh
         network_mode: "host"
         extra_hosts:
@@ -97,4 +110,4 @@ services:
             - danted_external=${MACHINE_IP}
             - danted_auth_internal=${MACHINE_IP}
             - danted_auth_external=${MACHINE_IP}
-            - test_domain=${TEST_DOMAIN}
+
diff --git a/tests/testserver/docker-compose-for-windows.yml b/tests/testserver/docker-compose-for-windows.yml
index aa610dfb88..c5348e27b6 100644
--- a/tests/testserver/docker-compose-for-windows.yml
+++ b/tests/testserver/docker-compose-for-windows.yml
@@ -12,82 +12,95 @@ version: '3.4'
 
 services:
     apache2:
-        image: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
         container_name: qt-test-server-apache2
         domainname: ${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./apache2:/service:ro
-        entrypoint: common/startup.sh
-        command: [common/ssl.sh, service/apache2.sh]
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
+                shareDir: ./common
+                serviceDir: ./apache2
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: [service/ssl.sh, service/apache2.sh]
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
         environment:
-            - test_domain=${TEST_DOMAIN}
             - test_cert="qt-test-server-host-network-cacert.pem"
 
     squid:
-        image: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
         container_name: qt-test-server-squid
         domainname: ${TEST_DOMAIN}
         depends_on:
             - apache2
-        volumes:
-            - ./common:/common:ro
-            - ./squid:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
+                shareDir: ./common
+                serviceDir: ./squid
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/squid.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     vsftpd:
-        image: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
         container_name: qt-test-server-vsftpd
         domainname: ${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./vsftpd:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
+                shareDir: ./common
+                serviceDir: ./vsftpd
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/vsftpd.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     ftp-proxy:
-        image: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
         container_name: qt-test-server-ftp-proxy
         domainname: ${TEST_DOMAIN}
         depends_on:
             - vsftpd
-        volumes:
-            - ./common:/common:ro
-            - ./ftp-proxy:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
+                shareDir: ./common
+                serviceDir: ./ftp-proxy
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/ftp-proxy.sh
         network_mode: "host"
         extra_hosts:
             - "qt-test-server.${TEST_DOMAIN}:${MACHINE_IP}"
-        environment:
-            - test_domain=${TEST_DOMAIN}
 
     danted:
-        image: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
         container_name: qt-test-server-danted
         domainname: ${TEST_DOMAIN}
         depends_on:
             - apache2
             - vsftpd
             - ftp-proxy
-        volumes:
-            - ./common:/common:ro
-            - ./danted:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
+                shareDir: ./common
+                serviceDir: ./danted
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/danted.sh
         network_mode: "host"
         extra_hosts:
@@ -97,4 +110,4 @@ services:
             - danted_external=${MACHINE_IP}
             - danted_auth_internal=${MACHINE_IP}
             - danted_auth_external=${MACHINE_IP}
-            - test_domain=${TEST_DOMAIN}
+
diff --git a/tests/testserver/docker-compose.yml b/tests/testserver/docker-compose.yml
index be65e5a26a..75e8a0fea2 100644
--- a/tests/testserver/docker-compose.yml
+++ b/tests/testserver/docker-compose.yml
@@ -12,18 +12,21 @@ version: '3.4'
 
 services:
     apache2:
-        image: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
         container_name: qt-test-server-apache2
         domainname: ${TEST_DOMAIN}
         hostname: apache2
-        volumes:
-            - ./common:/common:ro
-            - ./apache2:/service:ro
-        entrypoint: common/startup.sh
-        command: [common/ssl.sh, service/apache2.sh]
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-apache2:537fe302f61851d1663f41495230d8e3554a4a13
+                shareDir: ./common
+                serviceDir: ./apache2
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: [service/ssl.sh, service/apache2.sh]
 
     squid:
-        image: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
         container_name: qt-test-server-squid
         domainname: ${TEST_DOMAIN}
         hostname: squid
@@ -31,25 +34,37 @@ services:
             - apache2
         external_links:
             - apache2:apache2.${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./squid:/service:ro
-        entrypoint: common/startup.sh
+            - cyrus:cyrus.${TEST_DOMAIN}
+            - iptables:iptables.${TEST_DOMAIN}
+            - vsftpd:vsftpd.${TEST_DOMAIN}
+            - echo:echo.${TEST_DOMAIN}
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-squid:9c32f41b19aca3d778733c4d8fb0ecc5955e893c
+                shareDir: ./common
+                serviceDir: ./squid
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/squid.sh
 
     vsftpd:
-        image: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
         container_name: qt-test-server-vsftpd
         domainname: ${TEST_DOMAIN}
         hostname: vsftpd
-        volumes:
-            - ./common:/common:ro
-            - ./vsftpd:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-vsftpd:f3a9c8d793a77cc007c0e4e481bec01f9e3eeb7e
+                shareDir: ./common
+                serviceDir: ./vsftpd
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/vsftpd.sh
 
     ftp-proxy:
-        image: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
         container_name: qt-test-server-ftp-proxy
         domainname: ${TEST_DOMAIN}
         hostname: ftp-proxy
@@ -57,14 +72,18 @@ services:
             - vsftpd
         external_links:
             - vsftpd:vsftpd.${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./ftp-proxy:/service:ro
-        entrypoint: common/startup.sh
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-ftp-proxy:d7de8b28392d173db512a558ccc84ead8bece2ae
+                shareDir: ./common
+                serviceDir: ./ftp-proxy
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/ftp-proxy.sh
 
     danted:
-        image: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
         container_name: qt-test-server-danted
         domainname: ${TEST_DOMAIN}
         hostname: danted
@@ -76,8 +95,63 @@ services:
             - apache2:apache2.${TEST_DOMAIN}
             - vsftpd:vsftpd.${TEST_DOMAIN}
             - ftp-proxy:ftp-proxy.${TEST_DOMAIN}
-        volumes:
-            - ./common:/common:ro
-            - ./danted:/service:ro
-        entrypoint: common/startup.sh
+            - cyrus:cyrus.${TEST_DOMAIN}
+            - echo:echo.${TEST_DOMAIN}
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-danted:35607f9b790524cf9690c7d12a9a401696b7b6b5
+                shareDir: ./common
+                serviceDir: ./danted
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
         command: service/danted.sh
+
+    cyrus:
+        container_name: qt-test-server-cyrus
+        domainname: ${TEST_DOMAIN}
+        hostname: cyrus
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-cyrus:c8d72754abc0e501afd624ce838e4df35505abc9
+                shareDir: ./common
+                serviceDir: ./cyrus
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: [service/ssl.sh, service/cyrus.sh]
+
+    iptables:
+        container_name: qt-test-server-iptables
+        domainname: ${TEST_DOMAIN}
+        hostname: iptables
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-iptables:cb7a8bd6d28602085a88c8ced7d67e28e75781e2
+                shareDir: ./common
+                serviceDir: ./iptables
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: service/iptables.sh
+        cap_add:
+            - NET_ADMIN
+            - NET_RAW
+
+    echo:
+        container_name: qt-test-server-echo
+        domainname: ${TEST_DOMAIN}
+        hostname: echo
+        build:
+            context: .
+            dockerfile: ${SHARED_DATA}/Dockerfile
+            args:
+                provisioningImage: qt-test-server-echo:b29ad409e746a834c1055fd0f7a55fd5056da6ea
+                shareDir: ./common
+                serviceDir: ./echo
+                test_domain: ${TEST_DOMAIN}
+        entrypoint: service/startup.sh
+        command: service/echo.sh
diff --git a/tests/testserver/echo/echo.sh b/tests/testserver/echo/echo.sh
new file mode 100755
index 0000000000..f0da9627d5
--- /dev/null
+++ b/tests/testserver/echo/echo.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# Disabled by default, enable it.
+sed -i 's/disable\t\t= yes/disable = no/' /etc/xinetd.d/echo
+sed -i 's/disable\t\t= yes/disable = no/' /etc/xinetd.d/daytime
+
+service xinetd restart
diff --git a/tests/testserver/iptables/iptables.sh b/tests/testserver/iptables/iptables.sh
new file mode 100755
index 0000000000..9a48686d8b
--- /dev/null
+++ b/tests/testserver/iptables/iptables.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+#############################################################################
+##
+## Copyright (C) 2019 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the test suite of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:GPL$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 or (at your option) any later version
+## approved by the KDE Free Qt Foundation. The licenses are as published by
+## the Free Software Foundation and appearing in the file LICENSE.GPL3
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+set -ex
+
+iptables -A INPUT -p tcp --destination-port 1357 -j DROP
diff --git a/util/corelib/qurl-generateTLDs/main.cpp b/util/corelib/qurl-generateTLDs/main.cpp
index e1fe97646f..1baae92521 100644
--- a/util/corelib/qurl-generateTLDs/main.cpp
+++ b/util/corelib/qurl-generateTLDs/main.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the utils of the Qt Toolkit.
@@ -28,33 +28,66 @@
 
 #include <QtCore>
 
+const QString quadQuote = QStringLiteral("\"\""); // Closes one string, opens a new one.
+
 static QString utf8encode(const QByteArray &array) // turns e.g. tranøy.no to tran\xc3\xb8y.no
 {
     QString result;
     result.reserve(array.length() + array.length() / 3);
+    bool wasHex = false;
     for (int i = 0; i < array.length(); ++i) {
         char c = array.at(i);
         // if char is non-ascii, escape it
         if (c < 0x20 || uchar(c) >= 0x7f) {
             result += "\\x" + QString::number(uchar(c), 16);
+            wasHex = true;
         } else {
             // if previous char was escaped, we need to make sure the next char is not
             // interpreted as part of the hex value, e.g. "äc.com" -> "\xabc.com"; this
             // should be "\xab""c.com"
-            QRegExp hexEscape("\\\\x[a-fA-F0-9][a-fA-F0-9]$");
             bool isHexChar = ((c >= '0' && c <= '9') ||
-                             (c >= 'a' && c <= 'f') ||
-                             (c >= 'A' && c <= 'F'));
-            if (result.contains(hexEscape) && isHexChar)
-                result += "\"\"";
+                              (c >= 'a' && c <= 'f') ||
+                              (c >= 'A' && c <= 'F'));
+            if (wasHex && isHexChar)
+                result += quadQuote;
             result += c;
+            wasHex = false;
         }
     }
     return result;
 }
 
-int main(int argc, char **argv) {
+/*
+    Digest public suffix data into efficiently-searchable form.
+
+    Takes the public suffix list (see usage message), a list of DNS domains
+    whose child domains should not be presumed to trust one another, and
+    converts it to a form that lets qtbase/src/corelib/io/qtldurl.cpp's query
+    functions find entries efficiently.
+
+    Each line of the suffix file (aside from comments and blanks) gives a suffix
+    (starting with a dot) with an optional prefix of '*' (to include every
+    immediate child) or of '!'  (to exclude the suffix, e.g. from a '*' line for
+    a tail of it).  A line with neither of these prefixes is an exact match.
+
+    Each line is hashed and the hash is reduced modulo the number of lines
+    (tldCount); lines are grouped by reduced hash and separated by '\0' bytes
+    within each group. Conceptually, the groups are then emitted to a single
+    huge string, along with a table (tldIndices[tldCount]) of indices into that
+    string of the starts of the the various groups.
+
+    However, that huge string would exceed the 64k limit at least one compiler
+    imposes on a single string literal, so we actually split up the huge string
+    into an array of chunks, each less than 64k in size. Each group is written
+    to a single chunk (so we start a new chunk if the next group would take the
+    present chunk over the limit). There are tldChunkCount chunks; their lengths
+    are saved in tldChunks[tldChunkCount]; the chunks themselves in
+    tldData[tldChunkCount]. See qtldurl.cpp's containsTLDEntry() for how to
+    search for a string in the resulting data.
+*/
 
+int main(int argc, char **argv)
+{
     QCoreApplication app(argc, argv);
     if (argc < 3) {
         printf("\nUsage: ./%s inputFile outputFile\n\n", argv[0]);
@@ -68,14 +101,20 @@ int main(int argc, char **argv) {
         return 1;
     }
     QFile file(argv[1]);
-    QFile outFile(argv[2]);
-    file.open(QIODevice::ReadOnly);
-    outFile.open(QIODevice::WriteOnly);
+    if (!file.open(QIODevice::ReadOnly)) {
+        fprintf("Failed to open input file (%s); see %s -usage", argv[1], argv[0]);
+        return 1;
+    }
 
-    QByteArray outIndicesBufferBA;
-    QBuffer outIndicesBuffer(&outIndicesBufferBA);
-    outIndicesBuffer.open(QIODevice::WriteOnly);
+    QFile outFile(argv[2]);
+    if (!outFile.open(QIODevice::WriteOnly)) {
+        file.close()
+        fprintf("Failed to open output file (%s); see %s -usage", argv[2], argv[0]);
+        return 1;
+    }
 
+    // Write tldData[] and tldIndices[] in one scan of the (input) file, but
+    // buffer tldData[] so we don'te interleave them in the outFile.
     QByteArray outDataBufferBA;
     QBuffer outDataBuffer(&outDataBufferBA);
     outDataBuffer.open(QIODevice::WriteOnly);
@@ -85,75 +124,65 @@ int main(int argc, char **argv) {
         file.readLine();
         lineCount++;
     }
+    outFile.write("static const quint16 tldCount = ");
+    outFile.write(QByteArray::number(lineCount));
+    outFile.write(";\n");
+
     file.reset();
     QVector<QString> strings(lineCount);
     while (!file.atEnd()) {
-        QString s = QString::fromUtf8(file.readLine());
-        QString st = s.trimmed();
+        QString st = QString::fromUtf8(file.readLine()).trimmed();
         int num = qt_hash(st) % lineCount;
+        QString &entry = strings[num];
+        st = utf8encode(st.toUtf8());
 
-        QString utf8String = utf8encode(st.toUtf8());
+        // For domain 1.com, we could get something like a.com\01.com, which
+        // would be misinterpreted as octal 01, so we need to separate such
+        // strings with quotes:
+        if (!entry.isEmpty() && st.at(0).isDigit())
+            entry.append(quadQuote);
 
-        // for domain 1.com, we could get something like
-        // a.com\01.com, which would be interpreted as octal 01,
-        // so we need to separate those strings with quotes
-        QRegExp regexpOctalEscape(QLatin1String("^[0-9]"));
-        if (!strings.at(num).isEmpty() && st.contains(regexpOctalEscape))
-            strings[num].append("\"\"");
-
-        strings[num].append(utf8String);
-        strings[num].append("\\0");
+        entry.append(st);
+        entry.append("\\0");
     }
-
-    outIndicesBuffer.write("static const quint16 tldCount = ");
-    outIndicesBuffer.write(QByteArray::number(lineCount));
-    outIndicesBuffer.write(";\n");
-    outIndicesBuffer.write("static const quint32 tldIndices[");
-//    outIndicesBuffer.write(QByteArray::number(lineCount+1)); // not needed
-    outIndicesBuffer.write("] = {\n");
+    outFile.write("static const quint32 tldIndices[] = {\n");
+    outDataBuffer.write("\nstatic const char *tldData[] = {\n");
 
     int totalUtf8Size = 0;
     int chunkSize = 0; // strlen of the current chunk (sizeof is bigger by 1)
-    int stringUtf8Size = 0;
     QStringList chunks;
     for (int a = 0; a < lineCount; a++) {
-        bool lineIsEmpty = strings.at(a).isEmpty();
-        if (!lineIsEmpty) {
-            strings[a].prepend("\"");
-            strings[a].append("\"");
-        }
-        int zeroCount = strings.at(a).count(QLatin1String("\\0"));
-        int utf8CharsCount = strings.at(a).count(QLatin1String("\\x"));
-        int quoteCount = strings.at(a).count('"');
-        stringUtf8Size = strings.at(a).count() - (zeroCount + quoteCount + utf8CharsCount * 3);
-        chunkSize += stringUtf8Size;
-        // MSVC 2015 chokes if sizeof(a single string) > 0xffff
-        if (chunkSize >= 0xffff) {
-            static int chunkCount = 0;
-            qWarning() << "chunk" << ++chunkCount << "has length" << chunkSize - stringUtf8Size;
-            outDataBuffer.write(",\n\n");
-            chunks.append(QByteArray::number(totalUtf8Size));
-            chunkSize = 0;
+        outFile.write(QByteArray::number(totalUtf8Size));
+        outFile.write(",\n");
+        const QString &entry = strings.at(a);
+        if (!entry.isEmpty()) {
+            const int zeroCount = entry.count(QLatin1String("\\0"));
+            const int utf8CharsCount = entry.count(QLatin1String("\\x"));
+            const int quoteCount = entry.count('"');
+            const int stringUtf8Size = entry.count() - (zeroCount + quoteCount + utf8CharsCount * 3);
+            chunkSize += stringUtf8Size;
+            // MSVC 2015 chokes if sizeof(a single string) > 0xffff
+            if (chunkSize >= 0xffff) {
+                static int chunkCount = 0;
+                qWarning() << "chunk" << ++chunkCount << "has length" << chunkSize - stringUtf8Size;
+                outDataBuffer.write(",\n\n");
+                chunks.append(QString::number(totalUtf8Size));
+                chunkSize = 0;
+            }
+            totalUtf8Size += stringUtf8Size;
+
+            outDataBuffer.write("\"");
+            outDataBuffer.write(entry.toUtf8());
+            outDataBuffer.write("\"\n");
         }
-        outDataBuffer.write(strings.at(a).toUtf8());
-        if (!lineIsEmpty)
-            outDataBuffer.write("\n");
-        outIndicesBuffer.write(QByteArray::number(totalUtf8Size));
-        outIndicesBuffer.write(",\n");
-        totalUtf8Size += stringUtf8Size;
     }
-    chunks.append(QByteArray::number(totalUtf8Size));
-    outIndicesBuffer.write(QByteArray::number(totalUtf8Size));
-    outIndicesBuffer.write("};\n");
-    outIndicesBuffer.close();
-    outFile.write(outIndicesBufferBA);
+    chunks.append(QString::number(totalUtf8Size));
+    outFile.write(QByteArray::number(totalUtf8Size));
+    outFile.write("};\n");
 
+    outDataBuffer.write("};\n");
     outDataBuffer.close();
-    outFile.write("\nstatic const char *tldData[");
-//    outFile.write(QByteArray::number(charSize)); // not needed
-    outFile.write("] = {\n");
     outFile.write(outDataBufferBA);
-    outFile.write("};\n");
 
     // write chunk information
     outFile.write("\nstatic const quint16 tldChunkCount = ");
@@ -162,6 +191,6 @@ int main(int argc, char **argv) {
     outFile.write(chunks.join(", ").toLatin1());
     outFile.write("};\n");
     outFile.close();
-    printf("data generated to %s . Now copy the data from this file to src/corelib/io/qurltlds_p.h in your Qt repo\n", argv[2]);
-    exit(0);
+    printf("Data generated to %s - now revise qtbase/src/corelib/io/qurltlds_p.h to use this data.\n", argv[2]);
+    return 0;
 }
diff --git a/util/unicode/main.cpp b/util/unicode/main.cpp
index 22a4405ca9..8576f00e35 100644
--- a/util/unicode/main.cpp
+++ b/util/unicode/main.cpp
@@ -818,8 +818,8 @@ static const char *property_string =
     "    ushort lineBreakClass      : 6; /* 6 used */\n"
     "    ushort script              : 8;\n"
     "};\n\n"
-    "Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) Q_DECL_NOTHROW;\n"
-    "Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) Q_DECL_NOTHROW;\n"
+    "Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) noexcept;\n"
+    "Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) noexcept;\n"
     "\n"
     "struct LowercaseTraits\n"
     "{\n"
@@ -855,20 +855,20 @@ static const char *property_string =
     "\n";
 
 static const char *methods =
-    "Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) Q_DECL_NOTHROW;\n"
-    "inline GraphemeBreakClass graphemeBreakClass(QChar ch) Q_DECL_NOTHROW\n"
+    "Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) noexcept;\n"
+    "inline GraphemeBreakClass graphemeBreakClass(QChar ch) noexcept\n"
     "{ return graphemeBreakClass(ch.unicode()); }\n"
     "\n"
-    "Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) Q_DECL_NOTHROW;\n"
-    "inline WordBreakClass wordBreakClass(QChar ch) Q_DECL_NOTHROW\n"
+    "Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) noexcept;\n"
+    "inline WordBreakClass wordBreakClass(QChar ch) noexcept\n"
     "{ return wordBreakClass(ch.unicode()); }\n"
     "\n"
-    "Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) Q_DECL_NOTHROW;\n"
-    "inline SentenceBreakClass sentenceBreakClass(QChar ch) Q_DECL_NOTHROW\n"
+    "Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) noexcept;\n"
+    "inline SentenceBreakClass sentenceBreakClass(QChar ch) noexcept\n"
     "{ return sentenceBreakClass(ch.unicode()); }\n"
     "\n"
-    "Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) Q_DECL_NOTHROW;\n"
-    "inline LineBreakClass lineBreakClass(QChar ch) Q_DECL_NOTHROW\n"
+    "Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) noexcept;\n"
+    "inline LineBreakClass lineBreakClass(QChar ch) noexcept\n"
     "{ return lineBreakClass(ch.unicode()); }\n"
     "\n";
 
@@ -2521,42 +2521,42 @@ static QByteArray createPropertyInfo()
     out += "\n};\n\n";
 
 
-    out += "Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(uint ucs4) Q_DECL_NOTHROW\n"
+    out += "Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(uint ucs4) noexcept\n"
            "{\n"
            "    return uc_properties + GET_PROP_INDEX(ucs4);\n"
            "}\n"
            "\n"
-           "Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(ushort ucs2) Q_DECL_NOTHROW\n"
+           "Q_DECL_CONST_FUNCTION static inline const Properties *qGetProp(ushort ucs2) noexcept\n"
            "{\n"
            "    return uc_properties + GET_PROP_INDEX_UCS2(ucs2);\n"
            "}\n"
            "\n"
-           "Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) Q_DECL_NOTHROW\n"
+           "Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(uint ucs4) noexcept\n"
            "{\n"
            "    return qGetProp(ucs4);\n"
            "}\n"
            "\n"
-           "Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) Q_DECL_NOTHROW\n"
+           "Q_DECL_CONST_FUNCTION Q_CORE_EXPORT const Properties * QT_FASTCALL properties(ushort ucs2) noexcept\n"
            "{\n"
            "    return qGetProp(ucs2);\n"
            "}\n\n";
 
-    out += "Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) Q_DECL_NOTHROW\n"
+    out += "Q_CORE_EXPORT GraphemeBreakClass QT_FASTCALL graphemeBreakClass(uint ucs4) noexcept\n"
            "{\n"
            "    return static_cast<GraphemeBreakClass>(qGetProp(ucs4)->graphemeBreakClass);\n"
            "}\n"
            "\n"
-           "Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) Q_DECL_NOTHROW\n"
+           "Q_CORE_EXPORT WordBreakClass QT_FASTCALL wordBreakClass(uint ucs4) noexcept\n"
            "{\n"
            "    return static_cast<WordBreakClass>(qGetProp(ucs4)->wordBreakClass);\n"
            "}\n"
            "\n"
-           "Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) Q_DECL_NOTHROW\n"
+           "Q_CORE_EXPORT SentenceBreakClass QT_FASTCALL sentenceBreakClass(uint ucs4) noexcept\n"
            "{\n"
            "    return static_cast<SentenceBreakClass>(qGetProp(ucs4)->sentenceBreakClass);\n"
            "}\n"
            "\n"
-           "Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) Q_DECL_NOTHROW\n"
+           "Q_CORE_EXPORT LineBreakClass QT_FASTCALL lineBreakClass(uint ucs4) noexcept\n"
            "{\n"
            "    return static_cast<LineBreakClass>(qGetProp(ucs4)->lineBreakClass);\n"
            "}\n"