qt6windows7/dist/changes-5.9.5

Qt 5.9.5 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.9.0 through 5.9.4.

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 5.9.5 Changes                            *
****************************************************************************

QtCore
------

 - QDateTime and QLocale:
   * [QTBUG-66076] Fixed a crash if the date/time parsed with Qt::ISODate and
     Qt::ISODateWithMS had a 'T' for the time, but no actual time.

 - QObject:
   * [QTBUG-65712] Improved performance of QObject::deleteLater.

 - QPluginLoader:
   * [QTBUG-65197] Fixed a bug that would cause the Qt plugin scanning
     system to allocate too much memory and possibly crash the process.

 - QStandardPaths:
   * [QTBUG-65687] Fixed a memory leak with displayName() on Apple platforms.
   * [QTBUG-65820] Fixed QStandardPaths::AppDataLocation on Android.

QtGui
-----

 - Text:
   * [QTBUG-61882] Fixed a bug where mixing different writing systems with
     emojis could lead to missing glyphs.
   * [QTBUG-65519] Fixed ZWJ and ZWNJ control characters when fallback
     fonts are in use.

QtWidgets
---------

 - QTreeView:
   * [QTBUG-65980] Fixed missing update of QTreeView on changing tree
     position.

 - QLabel:
   * [QTBUG-66841] Fixed crash related to deleted buddy.

 - QHeaderView:
   * [QTBUG-65478] Fixed crash that could happen during layout.
   * [QTBUG-66444][QTBUG-65478][QTBUG-65478] Fixed section resize settings
     getting lost after layouting.
   * [QTBUG-66413][QTBUG-65478] Fixed hidden section issues during layout.
   * [QTBUG-65478] Fixed section restore issues after a layout change.

 - QFusionStyle:
   * [QTBUG-66343] Fixed checkbox rendering regression in low DPI settings.

 - QComboBox:
   * [QTBUG-55251] Fixed context menu opening up at the wrong location.

 - QFileDialog:
   * Fixed regression when using QFileDialog::getOpenFileUrl() using
     remote URLs.

 - QWidget:
   * [QTBUG-65783] Fixed crash when platform window creation fails.

Third-Party Code
----------------

 - Documented use of "Unicode Character Database (UCD)" in Qt Core.
 - Clarified use of "Unicode Common Local Data Repository (CLDR)" in the
   documentation. Also updated SPDX license name / ID.

Platform-specific changes
-------------------------

 - Android:
   * [QTBUG-65863] Fixed the detection of which thread is the main thread on
     Android.

 - Windows:
   * Named pipes internally created by QProcess now contain the PID in their
     name to ensure uniqueness.

 - winrt:
   * -qdevel and -qdebug are removed from the command line arguments and
     not passed to the application.

****************************************************************************
*                                Tools                                     *
****************************************************************************

configure & build system
------------------------

 - [QTBUG-65753] Fixed installation of example sources for qrc/rc files.
 - [Windows] cl.exe is now preferred over clang-cl.exe again.

qmake
-----

 - [QTBUG-50839][Windows] Paths starting with a (back-)slash but without
   a drive letter are not considered absolute any more.
 - [QTBUG-63637][MinGW] Fixed cross-compilation from Linux.
 - [QTBUG-65106] Fixed complaints about missing modules in $$QT after the
   project has already failed requires() (or REQUIRES=).
 - [QTBUG-65477][Darwin] Bundle identifiers are now properly escaped.
 - [Windows] Fixed 'make check' for executables in subdirectories.