Qt 5.10.1 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.10.0.

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 5.10 series is binary compatible with the 5.9.x series.
Applications compiled for 5.9 will continue to run with 5.10.

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.

This release contains all fixes included in the Qt 5.9.4 release.

****************************************************************************
*                               Library                                    *
****************************************************************************

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.

 - QFile:
   * [QTBUG-64103] Fixed a regression in doing rename() on Android
     Marshmallow.

 - 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.

 - QMetaObject:
   * [QTBUG-65462] Fixed a memory leak that happened when the new-style
     call to invokeMethod() was used.

 - QObject:
   * [QTBUG-65712] Improved performance of QObject::deleteLater.
   * Fixed a crash that could happen if the context QObject pointer passed to
     new-style connect() was null.

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

 - QProcess:
   * [QTBUG-65076] Fixed a regression that made QProcess be unable to find
     executables when the PATH environment variable on some Unix systems
     wasn't set. This behavior should not be relied upon since many systems
     do not have sensible fallback values for PATH.

 - QRandomGenerator:
   * [QTBUG-65414] Fixed compilation on Windows if the windows.h header was
     included before this qrandom.h.

 - QSettings:
   * [QTBUG-64121] Fixed reading from NTFS symbolic links.

 - QStandardPaths:
   * [QTBUG-65076] findExecutable() will now apply the default value for
     the PATH environment variable (as returned by the POSIX confstr(3)
     function or found in <paths.h>) if the variable isn't set in the
     environment.
   * [QTBUG-65687] Fixed a memory leak with displayName() on Apple platforms.
   * On Windows, it is now possible to resolve configuration paths even
     without QCoreApplication created.

 - QString:
   * [QTBUG-65939] Fixed a regression from 5.9 that caused comparing
     default-constructed QStrings to be sorted after non-empty strings.

 - QTextBoundaryFinder:
   * [QTBUG-63191] Fixed a bug in the generating of Unicode data, affecting
     the joining properties of characters like U+200C ZWNJ.

 - 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.

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.

****************************************************************************
*                         Platform-specific Changes                        *
****************************************************************************

 - QNX:
   * [QTBUG-64033] Fixed the detection of slog2 with QNX 7.0

 - Windows:
   * Named pipes internally created by QProcess now contain the PID in their
     name to ensure uniqueness.
   * [QTBUG-65940] Fixed asserts and crashes in QWinEventNotifier.

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

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

 - libjpeg-turbo was updated to version 1.5.3

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

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

 - [QTBUG-65753] Fixed installation of resource sources in some examples.
 - Qt's pkg-config .pc files now add -DQT_{module}_LIB to CFLAGS.

qmake
-----

 - [QTBUG-65106] The value of QT is now silently ignored when the sub-
   project already failed requires()/REQUIRES.
 - [QTBUG-63442] Fixed an issue that would cause warnings with CMake 3.10
   for projects that used AUTOMOC.
 - [QTBUG-63637][MinGW] Fixed cross compilation from Linux.
 - [QTBUG-65103] Introduced precompile_header_c CONFIG option for MSVC to
   enable precompiled header for C sources.
 - [QTBUG-65477][Darwin] Added escaping to @BUNDLEIDENTIFIER@.
 - [Darwin] Rewrote handling of placeholders in Info.plist; the preferred
   style is now ${} and is consistent between Xcode and Makefile generators.
 - [Windows] Fixed path separators when setting working directory in
   "make check".
 - [Windows] Paths which are relative to the current drive's root are not
   treated as absolute any more.