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Qt 4.8 introduces many new features and improvements as well as bugfixes
over the 4.7.x series. For more details, refer to the online documentation
included in this distribution. The documentation is also available online:
http://qt.nokia.com/doc/4.8
The Qt version 4.8 series is binary compatible with the 4.7.x series.
Applications compiled for 4.7 will continue to run with 4.8.
Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Qt Bug Tracker:
http://bugreports.qt.nokia.com/
Each of these identifiers can be entered in the bug tracker to obtain more
information about a particular change.
****************************************************************************
* General *
****************************************************************************
General Improvements
--------------------
-
Third party components
----------------------
- Updated libpng to version x.y.z
****************************************************************************
* Library *
****************************************************************************
QtCore
------
- Removed support for QT_NO_THREAD define for QHostInfo.
- Optimized plugin loading on ELF platforms.
Print failure reason at runtime with QT_DEBUG_PLUGINS=1 in environment.
- QMutexLocker: improved performence of the non contended case by inlining some function
- QThreadStorage: Added possibility to store object by value instead of by pointer [QTBUG-15033]
- QThread: fixed few race conditions [QTBUG-17257, QTBUG-15030]
- QtConcurrent: added support for c++0x lambda in few functions
- QObject: Improved performence of the signal activation
- QObject: added ways to connect signals using QMetaMethod
- QObject: deprecated qFindChild and qFindChildren
- QObject: optimize constructions and destruction of objects
- QObject: Qt::BlockingQueuedConnection can handle the return value [QTBUG-10440]
- QList/QVector/QStringList: added C++0x initilizer lists constructors.
- QVarLenghtArray: added method for consistency with QVector
- QStringBuilder: added support for QByteArray
- qSwap now uses std::swap, specialized std::swap for our container to work better with stl algoritms
- QVariant: deprecated global function qVariantSetValue, qVariantValue, qVariantCanConvert, qVariantFromValue
QtGui
-----
- QTabBar: reduced minimumSizeHint if ElideMode is set.
- QComboBox: Fixed a color propagation issue with the lineedit. [QTBUG-5950]
- Deprecate qGenericMatrixFromMatrix4x4 and qGenericMatrixToMatrix4x4
- QListView diverses optimisations [QTBUG-11438]
- QTreeWidget/QListWidget: use localeAwareCompare for string comparisons [QTBUG-10839]
QtOpenGL
--------
- Removed dependency of OpenGL Utility Library (GLU)
- Added QGLFunctions, which provides cross-platform access to the
OpenGL/ES 2.0 API.
- Including <QtOpenGL> will not work in combination with GLEW, as
QGLFunctions will undefine GLEW's defines.
QtScript
--------
- Deprecated qScriptValueFromQMetaObject, qScriptValueToValue, qScriptValueFromValue
****************************************************************************
* Database Drivers *
****************************************************************************
****************************************************************************
* Platform Specific Changes *
****************************************************************************
Qt for Linux/X11
----------------
Qt for Windows
--------------
Qt for Mac OS X
---------------
Qt for Embedded Linux
---------------------
Qt for Windows CE
-----------------
****************************************************************************
* Compiler Specific Changes *
****************************************************************************
****************************************************************************
* Tools *
****************************************************************************
- Build System
- Assistant
- Designer
* [QTBUG-18631] Enabled the use of promoted QWidgets in the buddy editor.
* [QTBUG-18120] Fixed saving of the Z-order.
* [QTBUG-13683] Fixed saving of QGridLayout and QFormLayout
by QFormBuilder.
* [QTBUG-10890] Added a filter to the rich text editor dialog.
that simplifies the HTML markup generated.
* [QTBUG-7777] Added support for QIcon::fromTheme.
* [QTBUG-7169] Fixed QtUiTools to be built with the correct
lib-infix.
* [QTBUG-3120] Added support for alignment of box layout items.
- Linguist
- Linguist GUI
- lupdate
- lrelease
- rcc
- moc
- uic
- uic3
- qmake
- configure
- qtconfig
* removed Qt3support dependency
- qt3to4
****************************************************************************
* Plugins *
****************************************************************************
****************************************************************************
* Important Behavior Changes *
****************************************************************************
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