| Qt 5.9.4 is a bug-fix release. It maintains both forward and backward |
| compatibility (source and binary) with Qt 5.9.0 through 5.9.3. |
| |
| 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 * |
| **************************************************************************** |
| |
| QtCore |
| ------ |
| |
| - [QTBUG-64529] Fixed a compilation issue with qfloat16 if AVX2 support is |
| enabled in the compiler. Since all processors that support AVX2 also |
| support F16C, for GCC and Clang it is recommended to either add -mf16c |
| to your build or to use the corresponding -march= switch. |
| |
| - QCoreApplication: |
| * [QTBUG-58919] Fixed a crash if QCoreApplication is recreated on Windows |
| and the passed argv parameter is different. |
| |
| - QFileInfo: |
| * [QTBUG-30148] Fixed isWritable() on Windows to return whether the given |
| file is writable only under current privilege levels. Previously, the |
| result would take into account privilege elevation. |
| |
| - QObject: |
| * Fixed a crash that could happen if the context QObject pointer passed to |
| new-style connect() was null. |
| |
| - QStandardPaths: |
| * On Windows, it is now possible to resolve configuration paths even |
| without QCoreApplication created. |
| |
| - QString: |
| * QString::unicode(), constData() and `data() const` do not return a |
| NUL-terminated string. This was true before, but the documentation |
| claimed the opposite. |
| |
| - QVector: |
| * Fixed a problem when calling removeAll() on an element from the |
| container, if the container had more than one copy of the that element. |
| |
| - QXmlStreamWriter: |
| * [QTBUG-63538] Empty namespace URIs are now possible. |
| |
| - State Machine: |
| * [QTBUG-61463] Fixed a failed assertion that could happen when emitting a |
| signal from another thread. |
| |
| QtNetwork |
| --------- |
| |
| - Bearer Management: |
| * [QTBUG-40332] The nativewifi (Windows) bearer plugin was determined |
| to be causing network interference in the form of system-wide higher |
| latency and has been disabled. The CoreWlan (macOS) plugin has also |
| been disabled. |
| |
| - QUdpSocket: |
| * [QTBUG-64718] Fixed a regression from Qt 5.9.3 caused by an apparent |
| Win32 API quirk we triggered when using readDatagram(), resulting in |
| an invalid QHostAddress sender address. receiveDatagram() was not |
| affected. |
| |
| QtPrintSupport |
| -------------- |
| |
| - QPrintDialog: |
| * [QTBUG-63933] Properly pre-select explicitly requested printer on |
| Unix. |
| |
| QtWidgets |
| --------- |
| |
| - QFileSystemModel: |
| * [QTBUG-46684] It is now possible to enable per-file watching by |
| setting the environment variable QT_FILESYSTEMMODEL_WATCH_FILES, |
| allowing to track for example changes in file size. |
| * [QTBUG-64098] Fixed column alignment issues. |
| * [QTBUG-62841] Fixed assert when monitoring directories. |
| |
| - QPixmapCache: |
| * [QTBUG-65475] Changing application palette runtime will now affect |
| (and invalidate) cached widget pixmaps used by the current style. |
| |
| - QTreeView: |
| * [QTBUG-57538] Fixed issue with drag and drop sometimes being inaccurate. |
| * [QTBUG-63396] Fixed issue with child indicator not drawn correctly in RTL mode. |
| * [QTBUG-63869] Fixed key navigation issue when using hidden items. |
| * [QTBUG-8376] Fixed row heights being wrong because of hidden columns. |
| |
| - QTableView: |
| * [QTBUG-60219] Fixed grid lines being drawn outside header. |
| |
| - QHeaderView: |
| * [QTBUG-53221] Fixed assert in QHeaderView because of layout changes. |
| * [QTBUG-65017] Fixed a font issue when using drag and drop. |
| * [QTBUG-56520] Fixed drawing issues in RTL mode. |
| * [QTBUG-41124] [QTBUG-54610] Fixed update issues. |
| |
| - QWidget: |
| * [QTBUG-61213] Fixed crash related to the usage of Qt::WA_WindowPropagation. |
| |
| - QPlainTextEdit: |
| * [QTBUG-62818] Fixed QPlainTextedit hanging because of scrollbar usage. |
| |
| - QMenu: |
| * [QTBUG-63576] Fixed HiDPI issue in QFusionStyle for QCheckBoxes in QMenus. |
| * [QTBUG-59794] Fixed HiDPI issue in QMenu when using several screens. |
| |
| - QMenuItem: |
| * [QTBUG-64055] Fixed drawing issue when setting a font style. |
| |
| - QAbstractButton: |
| * [QTBUG-53244] Fixed issue with released signal not being emmited when using |
| several mouse buttons at the same time. |
| |
| - QGraphicsEffect: |
| * [QTBUG-60231] Fixed crash when using child widgets with graphic effects. |
| |
| Third-Party Code |
| ---------------- |
| |
| - [QTBUG-65138] Fixed glitch in attribution documentation for Freetype |
| licenses / Qt Gui. |
| |
| Platform Specific Changes |
| ------------------------- |
| |
| - eglfs: |
| * [QTBUG-65119] Fixed crash when using cursors and multiple GL contexts. |
| |
| - iOS/tvOS: |
| * Qt will now take the safe area margins of the device into account when |
| computing layouts for QtWidgets. |
| |
| - macOS: |
| * [QTBUG-57487][QTBUG-54160] If you have changed the button mapping of |
| your Wacom tablet in System Preferences, it will be respected by Qt |
| applications now. To revert to the old behavior, set the environment |
| variable QT_MAC_TABLET_IGNORE_BUTTON_MAPPING. |
| |
| - macOS/iOS: |
| * [QTBUG-63476] Fixed an issue where text using one of the system theme |
| fonts would under certain circumstances display random glyphs. |
| |
| - INTEGRITY: |
| * Added mkspec for INTEGRITY Qualcomm s820 MSM8996AU |
| |
| - QNX: |
| * [QTBUG-64033] Fixed a build issue when using slog2 in QNX7. |
| |
| - X11 / XCB: |
| * [QTBUG-62224] Minimal libXi version requirement has been updated from |
| 1.7.4 to 1.7.5. This is because XIAllowTouchEvents is known to |
| deadlock with libXi 1.7.4 and earlier. When touch events are never |
| received, this is not an issue. Plain mouse / keyboard systems are not |
| affected. |
| |
| configure & build system |
| ------------------------ |
| |
| - [QTBUG-61431][QTBUG-62521] Fixed processing of *_LIBS_{DEBUG|RELEASE}= |
| configure command line arguments. |
| - [QTBUG-63452] Fixed bogus complaints about DUMMY platform when |
| re-configuring a build on a different day than initially configuring it. |
| - Fixed logic errors in the conditions of various Qt features. |
| |
| qmake |
| ----- |
| |
| - [QTBUG-41246][QTBUG-50896][Xcode] It is now possible to enable generation |
| of dSYM debug symbols for release builds. |
| - [iOS] Fixed compilation of asset catalogs for a generic simulator. |
