Qt 5.4 introduces many new features and improvements as well as bugfixes over the 5.3.x series. For more details, refer to the online documentation included in this distribution. The documentation is also available online: http://qt-project.org/doc/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. Some of the changes listed in this file include issue tracking numbers corresponding to tasks in the Qt Bug Tracker: http://bugreports.qt-project.org/ Each of these identifiers can be entered in the bug tracker to obtain more information about a particular change. **************************************************************************** * Library * **************************************************************************** QtCore ------ - Added QEnableSharedFromThis, a class that allows obtaining a QSharedPointer for an object already managed by a shared pointer. QtSql ----- - qsql ibase: fix memory corruption due to LONG being 4 bytes in firebird. - QSqlDriver::dbmsType(): New method reports DBMS type. Especially useful when using ODBC. **************************************************************************** * Platform Specific Changes * **************************************************************************** OS X ---- - OS X 10.6 is no longer supported. - OS X 10.10 is now supported. - QMacStyle has been updated with better OS 10.10 support. - The Qt binary packages are now configured with C++11 enabled.