84 lines
3.6 KiB
Groff
84 lines
3.6 KiB
Groff
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Qt 5.12.4 is a bug-fix release. It maintains both forward and backward
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compatibility (source and binary) with Qt 5.12.0 through 5.12.3.
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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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https://doc.qt.io/qt-5/index.html
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The Qt version 5.12 series is binary compatible with the 5.11.x series.
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Applications compiled for 5.11 will continue to run with 5.12.
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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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* Platform Specific Changes *
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****************************************************************************
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- X11 / XCB:
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* [QTBUG-45375] QTabletEvent coordinates now come from AbsX/AbsY
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valuators in the X11 event, in more precise 32.32 fixed-point format,
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scaled to fit the virtual desktop. It's possible to revert to using
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the legacy 16.16-format event_x/event_y coordinates as in previous
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releases by setting the QT_XCB_TABLET_LEGACY_COORDINATES environment
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variable.
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****************************************************************************
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* QtCore *
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****************************************************************************
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- Global:
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* [QTBUG-72073] Added the QT_NO_FLOAT16_OPERATORS macro in order to work
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around a Microsoft <= VS2017 compiler bug that is exposed when using
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std::bitset along with any Qt header that includes <qfloat16.h>.
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- QDeadlineTimer:
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* [QTBUG-69750] Fixed integer overflows leading to immediate timeouts.
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- QFile:
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* Made QFile::copy() issue a filesystem-synchronization system call,
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which would make it less likely to result in incomplete or corrupt
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files if the system reboots or uncleanly shuts down soon after the
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function returns. New code is advised to use QSaveFile instead, which
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also allows to display a progress report while copying.
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- QFileInfo:
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* [QTBUG-63970][QTBUG-30401][QTBUG-20791] Fixed resolving of symbolic
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links to UNC shares on NTFS file systems.
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- QMetaObject:
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* Non-copyable lambdas can now be used with invokeMethod(). For
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consistency reasons, the functor object is now always moved.
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****************************************************************************
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* QtGui *
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****************************************************************************
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- [QTBUG-73231] QWindow::mapToGlobal()/mapFromGlobal() now handle windows
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spanning screens correctly.
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- [QTBUG-75522] QBezier: Fix possible endless loop when stroking curves
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****************************************************************************
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* QtWidgets *
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****************************************************************************
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- QMenu:
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* Shortcuts are again shown by default in context menus, except on
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macOS. They can be forced off by setting
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AA_DontShowShortcutsInContextMenus to true.
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****************************************************************************
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* Third-Party Code *
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****************************************************************************
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- libpng was updated to version 1.6.37
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- Updated QLocale to CLDR v35.1
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- Updated bundled SQLite to version 3.28.0
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