Qt 5.9.4 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.9.0.

For more details, refer to the online documentation included in this
distribution. The documentation is also available online:

http://doc.qt.io/qt-5/index.html

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:

https://bugreports.qt.io/

Each of these identifiers can be entered in the bug tracker to obtain more
information about a particular change.

****************************************************************************
*                               Qt 5.9.4 Changes                           *
****************************************************************************

QtQml
-----

 - Added qt.qml.gc.statistics and qt.qml.gc.allocatorStats logging
   categories for garbage collection statistics
 - [QTBUG-56521][QTBUG-56532] Added private qmlUnregisterType(int) for
   advanced use cases such as re-registering an enum, or cleaning up
   when a plugin is unloaded
 - [QTBUG-61209] Fixed handling of QML cache files during URL interception.
   This changes the semantics of URL redirects. Previously a redirected URL
   was used as the base URL for further URL resolution. This doesn't work
   because redirection occurs after interception and interception should
   not influence the resolution of further URLs. We now use the original
   URL as base URL for resolution of further URLs and rely on the server to
   redirect those, too.
 - [QTBUG-63844] Fixed a crash in QMetaObject::activate() when using
   a Loader to load items with animations

QtQuick
-------

 - QQuickWindow:
   * Added logging category qt.quick.window.transient to check detection of
     transient windows declared inside other Items and Windows

 - QQuickWidget:
   * [QTBUG-64241] Synthesized mouse events delivered via QQuickWidget
     have QMouseEvent::source() set so they can be identified as synthesized
   * [QTBUG-64548] Shortcut now works in QQuickWidget
   * Fixed coordinate transformation in QInputMethodQueryEvent as delivered
     to QQuickWidget

 - Input Handling:
   * [QTBUG-53036] When an application is deactivated (applicationState() is
     no longer ApplicationActive), it's treated the same as window deactivation.
     Thus on mobile devices MouseAreas no longer get stuck in pressed state, etc.
   * [QTBUG-61144] Fixed the regression that when a mouse-handling Item
     or Control is used in a Flickable with a pressDelay, the delegate item
     did not receive touchscreen taps (in the form of mouse clicks)
   * [QTBUG-63026] Flickable no longer jumps when reversing the direction of
     scrolling on a pixel-delta-capable trackpad
   * [QTBUG-64249] When pressing one MouseArea via mouse, then tapping another
     via touch, then releasing, the first MouseArea correctly gets released

 - Item Views:
   * [QTBUG-46488] Refilling is restarted when necessary due to changing
     the model in a delegate's Component.onCompleted()
   * [QTBUG-50992] Fixed a bug which caused Qt Quick Controls to often be
     "destroyed during incubation" during asynchronous creation
   * [QTBUG-54859] Fixed a crash when items in a Repeater are moved around
     during asynchronous creation
   * [QTBUG-61537] Fixed incorrect delegate geometry due to model changes
     during delegate creation
   * [QTBUG-62864] Fixed incorrect ListView and GridView highlight position
     while scrolling through delegates backed by a lazy-loading model
   * [QTBUG-63743] Fixed a bug with clipping of items in a ScrollView

  - Other:
   * [QTBUG-62913] AnimatedImage.frameCount now has a NOTIFY signal
   * [QTBUG-65156] Fixed a memory leak by releasing textures during resizing