Release note

Qt 5.15.9 release is a patch release made on the top of Qt 5.15.8. As a patch
release, Qt 5.15.9 does not add any new functionality but provides bug fixes
and other improvements.

For detailed information about Qt, see the Qt 5.15 online documentation:
https://doc.qt.io/qt-5/index.html.

Important Changes

macOS

• Apple Silicon (arm64) is now supported for both single architecture
  and universal builds.

  A universal build of Qt is provided by the Qt Maintenance Tool as a
  standalone option, in addition to the existing x86_64 build.

  Known issues

  • Build system support for universal builds is limited to the qmake build
    system. See the documentation for details on how to enable universal
    builds for your application.

  • The Qt WebEngine and Qt PDF modules are not supported.

qtbase

• bcd32b0a66 QTestData: fix streaming of u8 string literals in C++20
  mode
  Fixed streaming of u8 string literals in C++20 mode.

• 8c74061dd9 SQLite: Update SQLite to v3.37.0
  Updated SQLite to v3.37.0

• c25d9ee376 QTzTimeZonePrivate: fix UB (data race on m_icu)
  Fixed a data race on Unix platforms when implicitly-shared copies of
  QTimeZone objects were used in certain ways (e.g. calling displayName())
  from different threads and Qt was configured with ICU support.

• 5a86aa3b17 Fix crash when text shaping fails
  Fixed a possible crash with certain fonts when shaping strings
  consisting only of control characters.

• 47d77dd552 JSON: When clearing duplicate object entries, also clear
  containers
  A memory leak in the JSON parser when reading objects with duplicate
  keys was fixed.

• 7888d846eb Enable all supported 1.0 device features in QVulkanWindow
  QVulkanWindow is now enabling all Vulkan 1.0 features reported as
  supported from the physical device.

• 059c8f9381 QDesktopServices: fix ABA problem in
  QOpenUrlHandlerRegistry
  Fixed a bug where destroying and re-creating a handler object in quick
  succession could cause the registration for the handler to be lost.

• 2b0105cdc1 QDesktopServices: deprecate destroying URL handlers w/o
  explicit unsetUrlHandler()
  URL handlers that have been passed to setUrlHandler() must now be
  removed by calling unsetUrlHandler() before they are destroyed. Relying
  on the handler's destructor to implicitly unset it is now deprecated,
  because it may already be in use by concurrent openUrl() calls. Support
  for implicit unsetting will be removed in 6.6 and, until then, a
  qWarning() is raised if it is exercised.

• 851d69eebc QProcess/Unix: ensure we don't accidentally execute
  something from CWD
  When passed a simple program name with no slashes, QProcess on Unix
  systems will now only search the current directory if "." is one of the
  entries in the PATH environment variable. This bug fix restores the
  behavior QProcess had before Qt 5.9. If launching an executable in the
  directory set by setWorkingDirectory() or inherited from the parent is
  intended, pass a program name starting with "./". For more information
  and best practices about finding an executable, see QProcess'
  documentation.

• 9d10338d58 Update bundled libjpeg-turbo to version 2.1.3
  libjpeg-turbo was updated to version 2.1.3

• 48d04fbbbf Fix C++20 ambiguous relational operators between
  QJsonValue{,Ref}
  Fixed relational operators to not cause warnings/ambiguities when
  compiling in C++20.

• 41637c0727 Fix clipped glyphs in text rendering of QGraphicsTextItem
  Clipping of visible glyphs when doing partial updates of a graphics
  view was off by 1. Also fixed an issue that caused rounding errors when
  transforming the clip rect into the glyphs draw space which was caused
  by transforming a QRect instead of a QRectF.

• 168ff3419f Update bundled zlib to version 1.2.12
  zlib was updated to version 1.2.12.

qtimageformats

• c4b95ac Update bundled libwebp to version 1.2.2
  Update bundled libwebp to version 1.2.2

qtwebengine

• Security fixes from Chromium up to version 98.0.4758.102, plus fixes for CVE-2022-0971 and CVE-2022-1096

qtvirtualkeyboard

• 222d99e0 Disable Windows IME when Qt Virtual Keyboard plugin is loaded
  Disable Windows IME when Qt Virtual Keyboard plugin is loaded

• 84c0466a Fix activation of input panel when initial active focus is
  set
  It is now possible to open the input panel implicitly when activating
  the window. Before, this failed because the "visible" state was reset
  (due to a bug) during activation.

Fixes

qtbase

• QTBUG-99163 QTransform rotate big image will crash
• QTBUG-98901 QtConcurrent::run crashes on program exit
• QTBUG-99338 Configure option change QNX armv7: neon -> no
• QTBUG-99147
• QTBUG-99371 QWidget::customContextMenuRequested coordinates are off
  for widgets in a QMenu
• QTBUG-81503 qtbase contains code that isn't allowed to be distributed
• COIN-777 *** Could not find any device matching '--platform iOS
  --minimum-deployment-target
• QTBUG-99148 Broken html list rendering because element
• QTBUG-97771 Interaction with Apple Pencil causes crash when app window
  is shown in Sidecar
• QTBUG-97841 MacOS Monterey - scrolling issues with touch pad
• QTBUG-99676 markdown (and html) import/export should not rely on use
  of a fixed-pitched font to remember a monospace span
• QTBUG-99427 [REG:5.15.6->5.15.7]: Qt 5.15 can no longer be build with
  C++11
• QTBUG-85040 tst_QVulkan::vulkanVersionRequest fails with CentOS 8.1
  x64
• QTBUG-99668 Using QDateTime with QTimeZone specified asserts in debug
  build
• QTBUG-80666 QNetworkRequest::setHeader(IfModifiedSince) treats local
  time as UTC
• QTBUG-92358 One More Crash in text shaping on special string with
  EmojiOneColor font.
• QTBUG-89155 Assertion violation in text shaping on special string with
  EmojiOneColor font.
• QTBUG-99799 Memory leak in QJsonDocument::fromJson()
• QTBUG-97535 Bug in examples for QListIterator Class
• QTBUG-99486 Extra dot appears in top left corner of Fusion style spin
  box frames with no buttons
• QTBUG-95309 Compile fails with Qt in namespace and C++20
• QTBUG-99743 QTabWidget rendering broken on macOS 12
• QTBUG-93393 Android A11Y TalkBack: Hidden onPressAction still called
• QTBUG-62185 QVersionNumber seems broken on -O1 and higher with g++
• QTBUG-87136 Animations run twice as fast on a 120hz Android device
• QTBUG-93823 Android QPlatformScreen does not expose the refresh rate:
  Animations (and timers) too fast on higher refresh rate monitors
• QTBUG-94959 Timer and animations runs faster after screen touch event
  on Android 11
• QTBUG-44096 QNetworkAuthenticationManager does not emit
  authenticationRequired when using NTLM
• QTBUG-99050 Windows/5.15: Some dx symbols cannot be found due to
  directxsdk update
• QTBUG-99323 [REG: 5.14.2 -> 5.15.0] Posted events get stuck when
  QCoreApplication::processEvents with QEventLoop::WaitForMoreEvents is
  used
• QTBUG-100364 QStandardPaths GenericDataLocation for iOS seems to
  mention wrong path
• QTBUG-86733 [Android] NoSuchMethodException when using QtMultimedia
• QTBUG-93402 Android A11Y TalkBack: Focus Rect not updated on
  orientation Change
• QTBUG-100511 windows: QLocalSocket can emit readyRead() after
  disonnected()
• QTBUG-100217 [REG 6.2.2 -> 6.2.3] Integer overflow when rendering svg
  image
• QTBUG-100545 Nested QML items with Accessible properties set does not
  work on Android
• QTBUG-100775 Several data races around handlers of
  QDesktopServices::openUrl()
• QTBUG-100362
  tst_QNetworkReply::putWithServerClosingConnectionImmediately is flaky
• QTBUG-63196 QNetworkReply::putWithServerClosingConnectionImmediately
  fails on Windows
• QTBUG-98476
  tst_QNetworkReply::putWithServerClosingConnectionImmediately fails in
  QtBase with Windows 11
• QTBUG-82314 WinRT UWP (x64 and x86) missing Microsoft.VCLibs.160.00
• QTBUG-100261 QPrinter property setup not effect
• QTBUG-99504 Linux: QPrinter::setDuplex not effective ( Canon
  imageRUNNER 2520 )
• QTBUG-100651 Unable to follow HTTP/2 redirects
• QTBUG-101306 enum-enum warning in qxcbwindow.cpp is genuiune
• QTBUG-101028 argv passed to Android apps is not sufficiently
  terminated
• QTBUG-28379 QFileDialog: aliases to folders disabled
• QTBUG-101551 wasm multiple "use after free" in
  QNetworkReplyWasmImplPrivate::doSendRequest
• QTBUG-100670 QDockWidgetGroupWindow effectively sets new dockarea
  permissions on qdockwidget
• QTBUG-93505 Unable to retrieve the swiped Filedialog
• QTBUG-51327 [Windows 8.1]: After maximizing a window and toggling the
  frameless window hint and moving to another monitor then the window can
  be too big
• QTBUG-93432 QGraphicsTextItem font gets incorrectly clipped when a
  clip rect is set on the painter.
• QTBUG-100327 CompositionMode_Screen wrong with drawImage
• QTBUG-100037 QSqlQuery: crash on executing query if connection is
  already closed
• QTBUG-101745 Running qmake on iOS build fails on macOS 12.3 Monterey
• QTBUG-99345 Document footer copyright note has old year, 2020
• QTBUG-97503 Reg[5.15.2-5.15.6] Android: Keyboard covers the inputfield
• QTBUG-81917 QtWidgets fails to build with clang 10.0-rc1 in C++20 mode
• QTBUG-81583 QTextMarkdownWriter: if a task list item's first line ends
  with monospace text, trailing backtick is omitted
• QTBUG-96718 Crash in inBindingWrapper() (Creator built against Qt 6.2
  build)
• QTBUG-99009 QCursor::setPos X coordinates is wrong when DPI scaling is
  used
• QTBUG-99642 Can't define CSS with properties for QToolButton with Qt 6
• QTBUG-92909 When following redirects, a PROPFIND request (and probably
  others) are converted to a GET
• QTBUG-99803 QVulkanWindow doesn't enable any device features (e.g.
  VkDeviceCreateInfo::pEnabledFeatures)
• QTBUG-99506 Loader with states and children loaders crashes on
  Integrity (release only)
• QTBUG-84248 tst_QFont::defaultFamily fails
• QTBUG-95764 pure virtual call in QAccessibleQuickItem
• QTBUG-98478 tst_QFileSystemWatcher::signalsEmittedAfterFileMoved fails
  in QtBase with Windows 11
• QTBUG-84258 tst_Gestures::graphicsItemGesture fails
• QTBUG-98649 Qt Android creates View IDs in a way potentially leading
  to a collision
• QTBUG-68860 tst_QGlyphRun::mixedScripts autotest fails on Ubuntu 18.04
  and QEMU builds
• QTBUG-93396 Android A11Y TalkBack: Slider does not announce value on
  change
• QTBUG-95237 [REG 6.0.4 -> 6.1.0] Integer-overflow in
  QFixed::operator+= through QImage::loadFromData(QByteArray)
• QTBUG-101636 FAIL! : tst_QDBusConnection::registerObjectPeer2 in
  Ubuntu_20_04
• QTBUG-94459 Android reports incorrect screen size after rotation
• QTBUG-72110 MouseArea stops responding