Revision control
++ Qt 5.4.2 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.4.1. Compatibility with Qt
++ 5.4.0 is also retained, except on Windows when using MSVC 2012 or MSVC
++ 2013. See note below.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.4 series is binary compatible with the 5.3.x series.
++ Applications compiled for 5.3 will continue to run with 5.4 with the
++ exception of on Windows when using MSVC 2012 or MSVC 2013. See note
++ below.
++
++ Some of the changes listed in this file include issue tracking numbers
++ corresponding to tasks in the Qt Bug Tracker:
++
++
++ Each of these identifiers can be entered in the bug tracker to obtain more
++ information about a particular change.
++
++ ****************************************************************************
++ * Important Behavior Changes *
++ ****************************************************************************
++ - Restored binary compatibility with Qt 5.3.2 on Windows when using MSVC
++ 2012 or MSVC 2013. This means that Qt 5.4.1 and 5.4.2 are no longer
++ binary compatible with Qt 5.4.0 when using either of those compilers.
++ - [QTBUG-42594] OS X binary package: fixed incorrect linking to libraries in
++ /opt/local/lib
++ - EXIF orientation is no longer applied to JPEG images on read. EXIF
++ orientation on JPEG was introduced in 5.4.0, but due to a bug the most
++ common EXIF-format (big-endian) was not working until 5.4.1. 5.4.2 restores the
++ behavior of 5.4.0 and earlier for most EXIF-tagged JPEGs.
++ EXIF orientation will be an opt-in starting with Qt 5.5.
++ - On x86 and x86-64 systems with ELF binaries (especially Linux), due to
++ a new optimization in GCC 5.x in combination with a recent version of
++ GNU binutils, compiling Qt applications with -fPIE is no longer
++ enough with GCC 5.x. Applications now need to be compiled with
++ the -fPIC option if Qt's option "reduce relocations" is active. For
++ backward compatibility only, Qt accepts the use of -fPIE for GCC 4.x
++ versions.
++ Note that Clang is known to generate incompatible code even with -fPIC if
++ the -flto option is active.
++ Applications using qmake or cmake >= 2.8.12 as their build system will
++ adapt automatically. Applications using an older release of cmake in
++ combination with GCC 5.x need to change their CMakeLists.txt to add
++ Qt5Core_EXECUTABLE_COMPILE_FLAGS to CMAKE_CXX_FLAGS. In particular,
++ applications using cmake >= 2.8.9 and < 2.8.11 will continue to build
++ with the -fPIE option and invoke the special compatibility mode if using
++ GCC 4.x.
++
++
++ ****************************************************************************
++ * Library *
++ ****************************************************************************
++
++ QtCore
++ ------
++ - [QTBUG-43893] Fixed memory leak in qSetMessagePattern
++ - [QTBUG-43513] QXmlStreamReader: Correctly parse XML containing NUL bytes
++ in the input stream
++ - [QTBUG-43352] QTemporaryDirectory: Properly clean up in case of a failure
++ - [QTBUG-43827] Fixed regression in QSortFilterProxyModel which crashed when
++ sorting a tree model
++
++ QtGui
++ -----
++ - [QTBUG-44273] Fixed misplacement of outlined text with native text rendering
++ - [QTBUG-44147] Fixed VNC not working on some VNC servers
++ - [QTBUG-43850] Fixed crash with multi-threaded font usage
++ - [QTBUG-43850] Made the old harfbuzz fallback available at runtime
++ - Improvements to the experimental high-dpi support
++ - [QTBUG-43318] Better resolution of GLES 3 functions to avoid issues when
++ deploying on systems with GLES 2.0 only
++
++ QtWidgets
++ ---------
++ - [QTBUG-43830] Fixed crash in stylesheets when styling QProgressBar
++ - [QTBUG-43663] QColorDialog: Don't lose focus while color picking
++
++ QtNetwork
++ ---------
++ - [QTBUG-43793] Fixed disconnects of QSSLSocket after starting encryption
++
++ QtPrintSupport
++ --------------
++ - [QTBUG-43124] Fixed QPrinter::{width,height} return values
++
++ ****************************************************************************
++ * Platform Specific Changes *
++ ****************************************************************************
++
++ Android
++ -------
++
++ - [QTBUG-44648] Fixed rendering Chinese text on Android 5
++
++ Linux/XCB
++ ---------
++
++ - [QTBUG-45071] Don't crash when resizing windows to bigger than 3840x2160
++
++ ****************************************************************************
++ * Tools *
++ ****************************************************************************
++
++ configure & build system
++ ------------------------
++
++ - CMake-based projects using Qt will now always be built with -fPIE,
++ which fixes function pointer based QObject::connect() on ARM. This
++ is consistent with qmake
++ - [Android] Fixed compilation on armv5 with 4.9 toolchain
++
++ qmake
++ -----
++
++ - [VS] Fixed handling of files that are excluded from build
++ - [QTBUG-44413][VS] Fixed vcxproj generation for CONFIG-=flat, again
++ - [QTBUG-44595] Restored Qt 4 behavior of qtLibraryTarget()
++ - [QTBUG-45118][Windows] Fixed parallel build when using TYPELIBS
++ - [OS X/iOS] Fixed QMAKE_INFO_PLIST path resolution for shadow builds