190 lines
6.6 KiB
Groff
190 lines
6.6 KiB
Groff
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Qt 5.9.4 is a bug-fix release. It maintains both forward and backward
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compatibility (source and binary) with Qt 5.9.0 through 5.9.3.
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For more details, refer to the online documentation included in this
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distribution. The documentation is also available online:
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http://doc.qt.io/qt-5/index.html
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The Qt version 5.9 series is binary compatible with the 5.8.x series.
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Applications compiled for 5.8 will continue to run with 5.9.
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Some of the changes listed in this file include issue tracking numbers
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corresponding to tasks in the Qt Bug Tracker:
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https://bugreports.qt.io/
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Each of these identifiers can be entered in the bug tracker to obtain more
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information about a particular change.
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****************************************************************************
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* Qt 5.9.4 Changes *
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****************************************************************************
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QtCore
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------
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- [QTBUG-64529] Fixed a compilation issue with qfloat16 if AVX2 support is
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enabled in the compiler. Since all processors that support AVX2 also
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support F16C, for GCC and Clang it is recommended to either add -mf16c
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to your build or to use the corresponding -march= switch.
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- QCoreApplication:
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* [QTBUG-58919] Fixed a crash if QCoreApplication is recreated on Windows
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and the passed argv parameter is different.
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- QFileInfo:
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* [QTBUG-30148] Fixed isWritable() on Windows to return whether the given
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file is writable only under current privilege levels. Previously, the
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result would take into account privilege elevation.
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- QObject:
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* Fixed a crash that could happen if the context QObject pointer passed to
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new-style connect() was null.
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- QStandardPaths:
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* On Windows, it is now possible to resolve configuration paths even
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without QCoreApplication created.
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- QString:
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* QString::unicode(), constData() and `data() const` do not return a
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NUL-terminated string. This was true before, but the documentation
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claimed the opposite.
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- QVector:
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* Fixed a problem when calling removeAll() on an element from the
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container, if the container had more than one copy of the that element.
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- QXmlStreamWriter:
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* [QTBUG-63538] Empty namespace URIs are now possible.
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- State Machine:
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* [QTBUG-61463] Fixed a failed assertion that could happen when emitting a
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signal from another thread.
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QtNetwork
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---------
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- Bearer Management:
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* [QTBUG-40332] The nativewifi (Windows) bearer plugin was determined
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to be causing network interference in the form of system-wide higher
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latency and has been disabled. The CoreWlan (macOS) plugin has also
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been disabled.
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- QUdpSocket:
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* [QTBUG-64718] Fixed a regression from Qt 5.9.3 caused by an apparent
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Win32 API quirk we triggered when using readDatagram(), resulting in
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an invalid QHostAddress sender address. receiveDatagram() was not
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affected.
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QtPrintSupport
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--------------
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- QPrintDialog:
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* [QTBUG-63933] Properly pre-select explicitly requested printer on
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Unix.
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QtWidgets
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---------
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- QFileSystemModel:
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* [QTBUG-46684] It is now possible to enable per-file watching by
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setting the environment variable QT_FILESYSTEMMODEL_WATCH_FILES,
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allowing to track for example changes in file size.
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* [QTBUG-64098] Fixed column alignment issues.
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* [QTBUG-62841] Fixed assert when monitoring directories.
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- QPixmapCache:
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* [QTBUG-65475] Changing application palette runtime will now affect
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(and invalidate) cached widget pixmaps used by the current style.
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- QTreeView:
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* [QTBUG-57538] Fixed issue with drag and drop sometimes being inaccurate.
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* [QTBUG-63396] Fixed issue with child indicator not drawn correctly in RTL mode.
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* [QTBUG-63869] Fixed key navigation issue when using hidden items.
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* [QTBUG-8376] Fixed row heights being wrong because of hidden columns.
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- QTableView:
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* [QTBUG-60219] Fixed grid lines being drawn outside header.
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- QHeaderView:
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* [QTBUG-53221] Fixed assert in QHeaderView because of layout changes.
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* [QTBUG-65017] Fixed a font issue when using drag and drop.
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* [QTBUG-56520] Fixed drawing issues in RTL mode.
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* [QTBUG-41124] [QTBUG-54610] Fixed update issues.
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- QWidget:
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* [QTBUG-61213] Fixed crash related to the usage of Qt::WA_WindowPropagation.
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- QPlainTextEdit:
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* [QTBUG-62818] Fixed QPlainTextedit hanging because of scrollbar usage.
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- QMenu:
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* [QTBUG-63576] Fixed HiDPI issue in QFusionStyle for QCheckBoxes in QMenus.
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* [QTBUG-59794] Fixed HiDPI issue in QMenu when using several screens.
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- QMenuItem:
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* [QTBUG-64055] Fixed drawing issue when setting a font style.
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- QAbstractButton:
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* [QTBUG-53244] Fixed issue with released signal not being emmited when using
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several mouse buttons at the same time.
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- QGraphicsEffect:
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* [QTBUG-60231] Fixed crash when using child widgets with graphic effects.
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Third-Party Code
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----------------
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- [QTBUG-65138] Fixed glitch in attribution documentation for Freetype
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licenses / Qt Gui.
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Platform Specific Changes
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-------------------------
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- eglfs:
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* [QTBUG-65119] Fixed crash when using cursors and multiple GL contexts.
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- iOS/tvOS:
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* Qt will now take the safe area margins of the device into account when
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computing layouts for QtWidgets.
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- macOS:
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* [QTBUG-57487][QTBUG-54160] If you have changed the button mapping of
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your Wacom tablet in System Preferences, it will be respected by Qt
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applications now. To revert to the old behavior, set the environment
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variable QT_MAC_TABLET_IGNORE_BUTTON_MAPPING.
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- macOS/iOS:
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* [QTBUG-63476] Fixed an issue where text using one of the system theme
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fonts would under certain circumstances display random glyphs.
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- INTEGRITY:
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* Added mkspec for INTEGRITY Qualcomm s820 MSM8996AU
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- QNX:
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* [QTBUG-64033] Fixed a build issue when using slog2 in QNX7.
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- X11 / XCB:
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* [QTBUG-62224] Minimal libXi version requirement has been updated from
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1.7.4 to 1.7.5. This is because XIAllowTouchEvents is known to
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deadlock with libXi 1.7.4 and earlier. When touch events are never
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received, this is not an issue. Plain mouse / keyboard systems are not
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affected.
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configure & build system
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------------------------
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- [QTBUG-61431][QTBUG-62521] Fixed processing of *_LIBS_{DEBUG|RELEASE}=
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configure command line arguments.
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- [QTBUG-63452] Fixed bogus complaints about DUMMY platform when
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re-configuring a build on a different day than initially configuring it.
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- Fixed logic errors in the conditions of various Qt features.
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qmake
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-----
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- [QTBUG-41246][QTBUG-50896][Xcode] It is now possible to enable generation
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of dSYM debug symbols for release builds.
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- [iOS] Fixed compilation of asset catalogs for a generic simulator.
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