| 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: |
| |
| http://doc.qt.io/qt-5/index.html |
| |
| 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: |
| |
| https://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 * |
| **************************************************************************** |
| |
| - 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. |
