Revision control
++ Qt 5.5.1 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.5.0.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.5 series is binary compatible with the 5.4.x series.
++ Applications compiled for 5.4 will continue to run with 5.5.
++
++ 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 *
++ ****************************************************************************
++
++ - [QTBUG-47316] QDebug output for QStrings changed compared to Qt 5.5.0 to
++ more closely match the output of previous Qt versions. Like Qt 5.5.0,
++ QDebug will escape non-printable characters, the backslash and quote
++ characters, but will no longer escape the printable characters.
++
++ ****************************************************************************
++ * Future Direction Notice *
++ ****************************************************************************
++
++ - Qt 5.7 will begin requiring certain C++11 features in order to
++ compile. Due to bugs in the Clang compiler that comes with XCode 5.0,
++ that version will not be supported, despite what was noted in the Qt
++ 5.5.0 changelog.
++ The minimum compiler versions for Qt 5.7 release will be:
++ * Clang 3.3 (XCode 5.1 contains version 3.4)
++ * GCC 4.7
++ * Intel C++ Composer XE 2013 SP1 (compiler version 14.0) on Linux and OS X
++ * Intel C++ Composer XE 2016 (compiler version 16.0) on Windows
++ * Microsoft Visual Studio 2012 (compiler version 17.0)
++
++ ****************************************************************************
++ * Library *
++ ****************************************************************************
++
++ QtCore
++ ------
++
++ - Logging framework:
++ * Fixed a bug that would cause a
++ "%{time boot}" field in the logging framework's pattern to always
++ display the same value, instead of the time since boot.
++
++ - QDate/QTime:
++ * Fixed a minor source-incompatibility between Qt 5.4 and 5.5.0
++ involving sets of functions overloaded on QTime and some integer or
++ QDate and some integer.
++
++ - QDir:
++ * QDir::relativeFilePath() now returns "." instead of an empty string if
++ the given path is the same as the directory.
++
++ - QLoggingCategory:
++ * Fixed behavior of default severity passed to constructor or
++ Q_LOGGING_CATEGORY with regards to QtInfoMsg, which was previously
++ treated as being more severe than QtFatalMsg.
++
++ - QTimeZone:
++ * [QTBUG-47037] Fixed a wrong timezone conversion when the POSIX
++ timezone rule contains a fractional timezone (e.g. VET4:30).
++
++ QtNetwork
++ ---------
++
++ - [QTBUG-47048] Fix HTTP issues with "Unknown Error" and "Connection
++ Closed"
++ [ChangeLog][QtNetwork][Sockets] Read OS/encrypted read buffers when
++ connection closed by server.
++
++ QtSql
++ -----
++
++ - QSqlDatabase:
++ * [QTBUG-47784][QTBUG-47452] Fixed a bug where opening a connection to a
++ MySQL database using the QMYSQL plugin would always return true even
++ if the server was unreachable. This bug could also lead to crashes
++ depending on the platform used.
++
++ QtWidgets
++ ---------
++
++ - Important behavior changes:
++ * [QTBUG-46379] Tooltips on OS X are now transparent for mouse events.
++
++ ****************************************************************************
++ * Platform Specific Changes *
++ ****************************************************************************
++
++ Windows
++ -------
++
++ - Text:
++ * [QTBUG-46963] Fixed crash in DirectWrite engine when constructing a
++ QRawFont from raw font data.
++
++ ****************************************************************************
++ * Compiler Specific Changes *
++ ****************************************************************************
++
++ GCC
++ ---
++
++ - Fixed a regression introduced Qt 5.5.0 that generated lots of
++ compiler warnings in Qt public headers when using the (deprecated)
++ version 4.5 of GCC.
++
++ ****************************************************************************
++ * Tools *
++ ****************************************************************************
++
++ configure & build system
++ ------------------------
++
++ - [QTBUG-46125] Fixed misuse of target linker features for host tools.
++ - [QTBUG-46473] QML plugin DLLs now have version information.
++
++ qmake
++ -----
++
++ - [QTBUG-46824][Darwin] Characters in the bundle identifier which
++ the App Store considers invalid are now substituted.
++ - [QTBUG-47065][Unix] Fixed use of CONFIG+=separate_debug_info together
++ with CONFIG+=unversioned_libname.
++ - [QTBUG-47450][Xcode] Fixed Info.plist creation in shadow builds.
++ - [QTBUG-47775][Darwin] Fixed Info.plist creation when bundle name
++ contains spaces.
++ - [QTBUG-48110][VS] Fixed VS2015 solution file generation.
++ - [MSVC][nmake] Fixed use of VS2013 mkspecs from VS2015 shell.