Revision control
++ Qt 5.9.2 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.9.0.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.9 series is binary compatible with the 5.8.x series.
++ Applications compiled for 5.8 will continue to run with 5.9.
++
++ 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 *
++ ****************************************************************************
++
++ - Building examples inside the Qt source tree while not building Qt itself
++ is rejected now, because this can cause hard to debug configuration
++ issues. If building isolated examples is needed, you may still use shadow
++ builds.
++
++ - This version of Qt restores compatibility with pre-5.9.0 calculation of
++ QCryptographicHash algorithms that were labelled "Sha3_nnn": that is,
++ applications compiled with old versions of Qt will continue using the
++ Keccak algorithm. Applications recompiled with this version will use
++ SHA-3, unless QT_SHA3_KECCAK_COMPAT is #define'd prior to #include
++ <QCryptographicHash>.
++
++ ****************************************************************************
++ * General Notes *
++ ****************************************************************************
++
++ Binary Compatibility Note
++ -------------------------
++
++ - The variable QOperatingSystemVersion::AndroidOreo was added in this
++ release. Code that uses this variable will not run under Qt 5.9.1. If
++ backwards compatibility is desired, use instead
++ QOperatingSystemVersion(QOperatingSystemVersion::Android, 8)
++ [This is similar to QOperatingSystemVersion::MacOSHighSierra added in
++ 5.9.1]
++
++ - This version of Qt changes the values assigned to enumerations
++ QCryptographicHash::Sha3_nnn. Applications compiled with this version and
++ using those enumerations will not work with Qt 5.9.0 and 5.9.1, unless
++ QT_SHA3_KECCAK_COMPAT is defined.
++
++ Deprecation Notice
++ ------------------
++
++ - Starting with Qt 5.10, IPv6 support will be mandatory for all platforms.
++ Systems without proper IPv6 support, such as the getaddrinfo() function
++ or the proper socket address structures, will not be able to build
++ QtNetwork anymore.
++
++ Third-Party Code
++ ----------------
++
++ - [QTBUG-31020] zlib was updated to version 1.2.11.
++ - libpng was updated to version 1.6.32
++
++ ****************************************************************************
++ * Library *
++ ****************************************************************************
++
++ QtCore
++ ------
++
++ - [QTBUG-61350] Fixed the conversion from string to double of the strings
++ "0E+1" and "0E-1" (with capital E), which QString::toDouble(),
++ QByteArray::toDouble() and similar functions reported as invalid.
++
++ - QFile:
++ * [QTBUG-57023] Reverted an incorrect change from Qt 5.9.0 that forbade
++ the creation and access to Alternate Data Streams on NTFS on Windows.
++ This means that file names containing a colon (':') are allowed again,
++ but note that they are not regular files.
++
++ - QFileInfo:
++ * [QTBUG-62802] Relative symbolic links on Windows are now resolved to
++ their absolute path by symLinkTarget().
++
++ - QFileSystemWatcher:
++ * [QTBUG-62242] Fixed a crash on Windows if this class was instantiated
++ before QCoreApplication was created.
++ * [QTBUG-61792] Fixed an issue on Windows that would cause this class not
++ to monitor files properly if the directory containing the monitored
++ files was added to the list of watched paths after the files.
++
++ - QLocale:
++ * [QTBUG-53565] Fixed the conversion of QTime to string form and parsing
++ from string form to always treat the value as the decimal fraction of
++ the seconds component. That is, the string format ".z" produces/parses
++ ".2" for 200 milliseconds and ".002" for 2 milliseconds. Use of "z" or
++ "zzz" is discouraged outside decimal fractions to avoid surprises.
++ * [QTBUG-61949] Fixed bcp57Name() to return "en" for the QLocale::c()
++ locale. Previously, it returned "C", which is not a valid BCP47
++ language tag.
++
++ - QProcess:
++ * [QTBUG-61634] Added a workaround for a rare race-condition bug in
++ some C libraries that caused the child process started by QProcess to
++ hang after trying to launch a non-existent executable or change to a
++ non-existent directory.
++ * [QTBUG-62584] Fixed a race-condition bug that could cause
++ waitForXxx() functions to hang forever if a slot triggered by that
++ function futher started a nested event loop.
++
++ - QTimeZone:
++ * [QTBUG-63205] Fixed a bug that would cause QTimeZone to mis-parse
++ timezone files on Unix systems if they contained leap second
++ information.
++
++ - QVariant:
++ * [QTBUG-61471] Fixed QVariant to actually perform the conversions
++ between QVariantHash and QVariantMap in the respective .toHash() and
++ .toMap() functions. QVariant already reported true in .canConvert()
++ between those two types.
++
++ QtDBus
++ ------
++
++ - [QTBUG-62284] Fixed a race condition in QDBusAbstractInterface that
++ could cause the class to never see the notification that the remote
++ service became available and cause isValid() to change to true.
++
++ QtGui
++ -----
++
++ - Text:
++ * [QTBUG-61520] Fixed matching of non-regular font weights for
++ application fonts on macOS.
++
++ QtNetwork
++ ---------
++
++ - [QTBUG-61692] Fixed the handling of application-wide proxy settings (set
++ with QNetworkProxy): previously, QTcpSocket would directly fall back to
++ the system settings if the object-specific setting was
++ QNetworkProxy::DefaultProxy.
++
++ - QLocalSocket:
++ * [QTBUG-61643] Fixed an issue with Qt pipe-handling code that could
++ cause deadlocks on Windows, most often if the QLocalSocket object tried
++ to wait for more data during application shutdown.
++
++ QtTest
++ ------
++
++ - Added flowId to messages when logging in TeamCity format. FlowId is used
++ to distinguish logging from multiple processes running in parallel.
++
++ QtWidgets
++ ---------
++
++ - Android:
++ * [QTBUG-48639] Fixed label duplication for buttons when using style
++ sheets with the Android style.
++
++ - QLineEdit:
++ * [QTBUG-60319] Fixed behavior of the ImSurroundingText query.
++ Previously, it returned a masked text whose length may be less than
++ the cursor position. Now it returns unmasked text, so the text length
++ is always greater than or equal to the cursor position.
++
++ - QMenu:
++ * [QTBUG-59794] Fixed menu size issue when using high DPI on
++ multi-screen system.
++
++ ****************************************************************************
++ * Compiler-specific Changes *
++ ****************************************************************************
++
++ clang
++ -----
++
++ - [QTBUG-61840][QTBUG-62085] Fixed an issue that caused recent Clang
++ versions to print a warning about [[nodiscard].
++
++ Visual Studio
++ -------------
++
++ - [QTBUG-61902] Changed Qt uses of certain C++ Standard Library functions
++ that Visual Studio warns about. Now Qt public headers call
++ Microsoft-specific versions that do not produce warnings.
++
++ ****************************************************************************
++ * Platform-specific Changes *
++ ****************************************************************************
++
++ macOS
++ -----
++
++ - [QTBUG-59222] Switching focus objects inside a top level window while
++ composing text using dead keys or input method events would leave the
++ application in an inconsistent state. The composition now automatically
++ cancels when the focus object changes.
++
++ Windows
++ -------
++
++ - [QTBUG-57916] Fixed build with ANGLE and newer MinGW versions.
++ - [QTBUG-62083] Fixed Qt trying to steal certain events from user windows if
++ the event ID was WM_USER.
++
++ ****************************************************************************
++ * Tools *
++ ****************************************************************************
++
++ configure & build system
++ ------------------------
++
++ - [QTBUG-35928][QTBUG-41908][Apple] Qt can now be built using just the
++ Xcode Command Line Tools, without needing to install the full Xcode IDE.
++ - [QTBUG-55755][Windows] All Qt .exe files now include meta information,
++ like .dll files already did.
++ - [QTBUG-58012] (Re-)added a way to specify alternative ICU libraries.
++ - [QTBUG-62150] Fixed detection of ICU in static builds.
++ - [QTBUG-53537][X11] Added missing detection of Xinerama.
++ - [QTBUG-61731][X11] Fixed detection of AT-SPI, allowing accessibility
++ support to be built again.
++ - [X11] Fixed detection of x11-xcb with pkg-config.
++ - [CMake] All Qt module defines are now propagated to the config files.
++
++ qmake
++ -----
++
++ - [QTBUG-31034] Added qmake feature and configure option to use ccache.
++ - [QTBUG-48342] Fixed generation of extraneous slashes in -project mode.
++ - [QTBUG-55633] Fixed misparsing of some string literal concatenations
++ as C++11 raw strings. This affects dependency scanning.
++ - [QTBUG-59301][Xcode] Fixed duplicate references in project files.
++ - [QTBUG-59827][nmake] The 'clean' target now deletes backup files of
++ MSVC manifests.
++ - [QTBUG-60455][Android] libc++ is now used instead of libstdc++ when
++ building with the android-clang mkspec.
++ - [QTBUG-60430][iOS] Fixed handling of the deprecated variable
++ QMAKE_IOS_TARGETED_DEVICE_FAMILY.
++ - [QTBUG-60899][WinRT] Fixed capability handling for Win10 targets.
++ - [WinRT] Added support for new Win10 capabilities.
++ - [QTBUG-61335][MinGW] Worked around LTO+MRI linker issue when cross-
++ building from Linux.
++ - [QTBUG-61411][Windows] _UNICODE is now defined, consistently with VS.
++ - [QTBUG-61688][MSVC] Fixed compilation of precompiled headers with
++ CONFIG+=silent. Done by removing redundant progress messages.
++ - [QTBUG-61690][QTBUG-61735] Fixed detection of compiler default search
++ paths for various compilers and platforms.
++ - [QTBUG-63197][Windows] Fixed moc'ing in a build directory with spaces
++ when INCLUDEPATH contains 40+ entries.
++ - [Android] Fixed building with ndkr16+ by using unified headers.
++ - [Windows] Fixed repeated installation of read-only files.
++ - [VS] Fixed deployment rules in created solution files.