mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-10-30 15:57:52 +08:00
125 lines
5.2 KiB
Groff
125 lines
5.2 KiB
Groff
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:
|
|
|
|
http://doc.qt.io/qt-5.4/
|
|
|
|
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:
|
|
|
|
http://bugreports.qt.io/
|
|
|
|
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
|