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