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. **************************************************************************** * Important Behavior Changes * **************************************************************************** - As a fix to QTBUG-50992, execution of delegates, such as contentItem and background, is deferred until the construction of a control is complete, or a delegate is accessed. Consequently, if a delegate is replaced with a custom delegate, the default delegate is not created. Previously, when a default delegate was replaced by a custom delegate, the default delegate was nevertheless created and destroyed during the construction of the control. **************************************************************************** * Controls * **************************************************************************** - [QTBUG-64548] Fixed shortcuts in QQuickWidget - [QTBUG-65016] Fixed QQuickStyle::setFallbackStyle() in static builds - [QTBUG-50992] Fixed a bug which caused delegates of customized controls to often be "destroyed during incubation" when asynchronously incubated by item views or asynchronous loaders. - BusyIndicator: * [QTBUG-62874] Fixed busy animation in QQuickWidget - ProgressBar: * [QTBUG-62874] Fixed indeterminate animation in QQuickWidget - StackView: * [QTBUG-65084] Fixed to not block touch events. - SwipeView: * [QTBUG-62110] Fixed slow swiping in large views - ToolButton: * [QTBUG-65052] Fixed round ripple for square buttons in the Material style - Tumbler: * [QTBUG-65165] Made currentIndex animations take a constant amount of time (1 second) regardless of how many items are in the model. This prevents Tumblers with large amounts of items from scrolling too slowly when changing the currentIndex.