path: root/dist
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authorJani Heikkinen <>2017-05-05 09:07:46 +0300
committerJani Heikkinen <>2017-05-10 19:35:18 +0000
commitd15d9884d024f69c20c0c49a4f915236db845cf7 (patch)
tree29d8d2e65becbfcf8b3cf01bc9df897a3f1f3a99 /dist
parent7434d05cc102f27d36b8efccb4e37f20a4886ea9 (diff)
Add changes file for 5.9.0
Listing important changes and bug-fixes. Change-Id: I75a18908315ea28cb669bc009cb55e7defd18a8d Reviewed-by: Robin Burchell <> Reviewed-by: Lars Knoll <> Reviewed-by: Shawn Rutledge <>
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+Qt 5.9 introduces many new features and improvements as well as bugfixes
+over the 5.8.x series. For more details, refer to the online documentation
+included in this distribution. The documentation is also available online:
+The Qt version 5.9 series is binary compatible with the 5.8.x series.
+Applications compiled for 5.8 will continue to run with 5.9.
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+* Important Behavior Changes *
+* qmlInfo now reports messages with a QtMsgType of QtInfoMsg instead of
+ QtWarningMsg. To continue to send warnings, callers should migrate to
+ the newly-introduced qmlWarning function.
+* Library *
+ - The garbage collector has been rewritten to provide better memory
+ consumption, and improved, more predictable performance for JavaScript code.
+ - Array.prototype.find and Array.prototype.findIndex from ES6 are now implemented.
+ - Introduced qmlRegisterModule() that can be used to make a certain module
+ version available, even if no types or revisions are registered for that
+ version.
+ - Introduced qmlDebug & qmlWarning functions to qqmlinfo.h, in addition to
+ the pre-existing qmlInfo function. As a side effect, QQmlError has also
+ gained messageType() and setMessageType().
+ - [QTBUG-52013] Added QQmlEngine::offlineStorageDatabaseFilePath(dbName)
+ to allow getting the actual storage path for a particular database.
+ - [QTBUG-53091] Introduced Qt.application.displayName, to map the
+ QGuiApplication::applicationDisplayName property to QML.
+ - Global:
+ * Improved stability of Animator's internals.
+ * [QTBUG-55496] Added a disk cache for OpenGL shaders to QtQuick.
+ * [QTBUG-58845] QWheelEvent delivered to all QQuickItems will now have a
+ correct global position.
+ * [QTBUG-57910] Touch events are now correctly ungrabbed if the touch event
+ was stolen by a parent item, such as a Flickable.
+ * [QTBUG-57098] Added Keys::shortcutOverride signal to allow prevention of
+ e.g. Shortcut from stealing key events.
+ * [QTBUG-56279] Added a shared memory image provider to conserve memory
+ when several processes use the same local image files.
+ - Window:
+ * [QTBUG-60232] Added QQuickWindow::sceneGraphBackend() to allow querying
+ which scene graph rendering backend is in use.
+ * [QTBUG-56115] Added a screen property to Window, which can be used to
+ declaratively associate a window with a specific screen. This is useful on
+ multi-screen embedded systems. Added Qt.application.screens as an array of
+ screens from which one can be chosen to assign to a Window. Added virtualX
+ and virtualY properties to Screen to enable querying the screen's position
+ within the virtual desktop.
+ - Items:
+ * [QTBUG-38515] Added horizontalOvershoot and verticalOvershoot
+ properties to Flickable, for use in implementing custom boundary actions and effects.
+ * [QTBUG-44762] Added a forceLayout method to Positioner types (Column, Row,
+ Flow, Grid) to force positioning of children to happen earlier. Additionally,
+ a positioningComplete signal has been added.
+ * [QTBUG-57203] Added TextInput::textEdited signal to distinguish user edits from
+ programmatical text changes.
+ * [QTBUG-42074][QTBUG-57003] Added support for characters in Private Use Area,
+ as well as zero-width joiners and zero-width non-joiners for TextInput and
+ TextEdit.
+ * [QTBUG-47662] Added MouseArea::pressAndHoldInterval to allow control over the
+ elapsed time before the pressAndHold signal is emitted.
+ * Item::grabToImage on an Image element will now work regardless of the
+ Image's sourceSize or cache properties.
+ * [QTBUG-52553][QTBUG-56501] Made it possible to enable horizontal
+ flicking in a vertical ListView, and vice versa. The only thing apps
+ must do is to specify the desired flick direction and the content
+ width (vertical ListView) or content height (horizontal ListView),
+ which is not calculated by ListView.
+ * Added Shortcut::sequences, to provide support for multiple different shortcut
+ sequences in a single Shortcut.
+ * Added rotation, ellipseDiameters and uniqueId properties to
+ MultiPointTouchArea.TouchPoint, and deprecated the area property.
+ A TouchPoint is now modeled as an ellipse centered on a point,
+ possibly rotated, depending on what the hardware and drivers support.
+ Android and the TUIO plugin support rotation and ellipseDiameters, for example.
+ The uniqueId is so far applicable only to the use of fiducials (tokens,
+ knobs or game pieces with hardware-based identification) on a TUIO touch surface.
+ - Accessibility:
+ * [QTBUG-58340] Fixed focus handling so that keyboard and VoiceOver's
+ virtual focus are in sync (QTBUG-58340).
+ - Text:
+ * Deprecated doLayout() in favor of forceLayout(), to improve consistency now
+ that more types (Positioners, Layouts, etc) have a forceLayout() method.
+ * [QTBUG-51133] Added fontInfo property to Text type, providing a way to
+ query properties of the actual font used for presenting the text.
+ * [QTBUG-58852] Text items with a renderType of Text.NativeRendering will no
+ longer stop rendering with a large number of characters.
+ - [QTBUG-23083] Added TestCase::touchEvent to support simulating touch events
+ in tests.
+ - [QTBUG-56361] Added createTemporaryObject() and createTemporaryQmlObject()
+ functions to ensure that dynamically created objects can be destroyed at the
+ end of each test function.