| Qt 5.13 introduces many new features and improvements as well as bugfixes |
| over the 5.12.x series. For more details, refer to the online documentation |
| included in this distribution. The documentation is also available online: |
| |
| https://doc.qt.io/qt-5/index.html |
| |
| The Qt version 5.13 series is binary compatible with the 5.12.x series. |
| Applications compiled for 5.12 will continue to run with 5.13. |
| |
| 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 Source Incompatible Changes * |
| **************************************************************************** |
| |
| - Moc generated files include the standard <memory> header file now. |
| A side effect of this is that code including the Moc output from within |
| a namespace will fail to compile. |
| |
| **************************************************************************** |
| * Important Behavior Changes * |
| **************************************************************************** |
| |
| - The Qt resource system now supports compressing content using the |
| Zstandard (https://zstd.net) algorithm. Compared to zlib, it compresses |
| better for the same CPU time, so this algorithm is the default. |
| QResource::isCompressed() returns true for either compression algorithm. |
| Use QResource::compressionAlgorithm() to find out which algorithm to |
| decompress. QFile will automatically decompress using the correct |
| algorithm. |
| |
| - QDataStream version bumped up to 19 to account for changes in the |
| serialization of QFont. |
| |
| - [QTBUG-73048] Qt now enables by default warnings when using APIs |
| marked as deprecated. It is possible to disable such warnings by |
| defining the QT_NO_DEPRECATED_WARNINGS macro. The old |
| QT_DEPRECATED_WARNINGS macro which was used to enable this warning |
| now has no effect (warnings are automatically enabled). |
| |
| **************************************************************************** |
| * Third-Party Code * |
| **************************************************************************** |
| |
| - Updated bundled SQLite to version 3.28.0. |
| - [QTBUG-72623] Updated DNS public suffix list |
| - [QTBUG-73883] libjpeg-turbo was updated to version 2.0.2 |
| - Bundled libpng was updated to version 1.6.37 |
| |
| **************************************************************************** |
| * Platform-Specific Changes * |
| **************************************************************************** |
| |
| - X11 / XCB: |
| * [QTBUG-45375] QTabletEvent coordinates now come from AbsX/AbsY |
| valuators in the X11 event, in more precise 32.32 fixed-point format, |
| scaled to fit the virtual desktop. It's possible to revert to using |
| the legacy 16.16-format event_x/event_y coordinates as in previous |
| releases by setting the QT_XCB_TABLET_LEGACY_COORDINATES environment |
| variable. |
| * [plugins] platforminputcontexts now use libxkbcommon-compose APIs for |
| compose key input, instead of Qt's own implementation. |
| |
| - Android |
| * Increased the minimum supported Android version to Android 5.0 |
| (API level 21). |
| |
| - Windows |
| * [QTBUG-47247][QTBUG-71855] Add a default setting for |
| hasBorderInFullScreen in QtPlatformHeaders, QWindowsWindowFunctions |
| * [QTBUG-57180] Removed confusing DirectWrite warning when loading |
| bitmap fonts. |
| |
| - macOS |
| * Accessibility: VoiceOver now reads all lines in multiline text |
| components when navigating by lines. |
| |
| **************************************************************************** |
| * Tools * |
| **************************************************************************** |
| |
| - configure & build system: |
| * Added --linker=[bfg,lld,gold] configure flag. |
| * The default OpenGL configuration changed from ANGLE to dynamic OpenGL. |
| * Added -schannel option to enable Schannel support on Desktop Windows. |
| * Added -coverage option for recording coverage data during execution |
| |
| - CMake |
| * Added support for automatic linking of transitive dependencies in |
| static builds |
| |
| - qmake |
| * [QTBUG-53654] Introduced the variables WINDOWS_TARGET_PLATFORM_VERSION |
| and WINDOWS_TARGET_PLATFORM_MIN_VERSION for overriding the default |
| values of WindowsTargetPlatformVersion and |
| WindowsTargetPlatformMinVersion in Visual Studio project files. |
| |
| - RCC now supports compressing content using the Zstandard |
| (https://zstd.net) algorithm. Compared to zlib, it compresses better for |
| the same CPU time, so this algorithm is the default. To go back to the |
| previous algorithm, pass command-line option --compress-algo=zlib. |
| Compression levels range from 1 (fastest, least compression) to 19 |
| (slowest, best compression). Level 0 tells the library to choose an |
| implementation-defined default. The default compression level is |
| "heuristic" (level -1): under this mode, RCC will attempt a very fast |
| compression (level 1) and check if the file was sufficiently compressed. |
| If it was, then RCC will compress again using an implementation-defined |
| level. |
| |
| **************************************************************************** |
| * QtCore * |
| **************************************************************************** |
| |
| - New class QConcatenateTablesProxyModel, to concatenate the rows from |
| multiple source models. |
| - New class QTransposeProxyModel to swap rows and columns of the source |
| model. |
| - Added macros Q_DISABLE_MOVE and Q_DISABLE_COPY_MOVE complementing |
| Q_DISABLE_COPY. |
| - Qt Containers and meta type system now use C++11 type traits |
| (std::is_trivial, std::is_trivially_copyable and |
| std::is_trivially_destructible) to detect the class of a type not |
| explicitly set by Q_DECLARE_TYPEINFO. (Q_DECLARE_TYPEINFO is still |
| needed for QList.) |
| |
| - QCommandLineParser: |
| * [QTBUG-58490] The application name (if set in QCoreApplication) is now |
| shown in error messages. |
| |
| - QDateTime: |
| * [QTBUG-71030] Fixed race conditions in getting the local time zone. Qt now |
| has a mutex lock around all calls to tzset() and mktime(). Application |
| code should avoid calling those functions directly. |
| |
| - QFile: |
| * Made QFile::copy() issue a filesystem-synchronization system call, |
| which would make it less likely to result in incomplete or corrupt |
| files if the system reboots or uncleanly shuts down soon after the |
| function returns. New code is advised to use QSaveFile instead, which |
| also allows display of a progress report while copying. |
| |
| - QFileInfo: |
| * [QTBUG-63970][QTBUG-30401][QTBUG-20791] Fixed resolving of symbolic |
| links to UNC shares on NTFS file systems. |
| |
| - QJsonArray: |
| * [QTBUG-32793] Added cbegin() and cend() methods for compatibility with |
| the Standard Library container concepts. |
| |
| - QJsonDocument: |
| * [QTBUG-71445] Added the ability to stream QJsonDocument into and from |
| QDataStream if it is contained in a QVariant. |
| |
| - QLocale: |
| * Added support for Western Balochi, Ido, Lojban, Sicilian and |
| Southern Kurdish. |
| * [QTBUG-71445] Added a const overload for formattedDataSize(). |
| * [QTBUG-782] Added toLong() and toULong(). |
| |
| - QMetaObject: |
| * Non-copyable lambdas can now be used with invokeMethod(). For |
| consistency reasons, the functor object is now always moved. |
| |
| - QMimeDatabase: |
| * Added configure option -no-mimetype-database that tells Qt not to |
| bundle its own copy of the XDG MIME database. If this option is |
| passed, QMimeDatabase will only work if there's a system copy in |
| $XDG_DATA_DIRS/mime. This option is useful for Linux distributions |
| that ensure the data is always present. |
| |
| - QSettings: |
| * Added QSettings(Scope...) constructor to avoid using #ifdef in Qt |
| applications. |
| |
| - QStringListModel: |
| * [QTBUG-69807] Implemented moveRows |
| |
| - QUrlQuery: |
| * QUrlQuery now provides an initializer list constructor. It can be |
| created using a list of key/value pairs. |
| |
| - QVector: |
| * QVector no longer requires a default constructor for its template |
| argument. |
| |
| **************************************************************************** |
| * QtDBus * |
| **************************************************************************** |
| |
| - Matching namespace prefixes using QDBusServiceWatcher (instead of full |
| service names) is now possible. For example, "com.example.backend1*" |
| will match "com.example.backend1", "com.example.backend1.foo" and |
| "com.example.backend1.foo.bar", but not "com.example.backend12". |
| |
| **************************************************************************** |
| * QtGui * |
| **************************************************************************** |
| |
| - CSS: |
| * Added support for HSL/HSLA colors. |
| * Fix the range of the hue parameter when parsing a color given in HSL |
| or HSV. |
| |
| - QFont: |
| * Add setFamilies()/families() to support use of font families with |
| commas and quotes in their name. |
| |
| - QImage: |
| * [QTBUG-41176] Added support for 16-bit grayscale format. |
| * A new method convertTo has been added to change the format of a QImage |
| in place. |
| |
| - QPainterPath: |
| * Added clear(), reserve(), capacity(). clear() removes allocated |
| QPainterPath elements but preserves allocated memory, which can be |
| useful for application with complex paths that are often recreated. |
| reserve() and capacity() follow QVector semantics. |
| |
| - QWindow: |
| * [QTBUG-67903][QTBUG-52944] QWindow::transientParent is now a property. |
| |
| - Text: |
| * [QTBUG-60813] Deprecated QFont::lastResortFamily() and |
| QFont::lastResortFont() which are not in use in Qt 5 and did not |
| provide any useful information. |
| * [QTBUG-22813] Added support for setting the font's style name in |
| QTextCharFormat. |
| |
| **************************************************************************** |
| * QtNetwork * |
| **************************************************************************** |
| |
| - TLS (SSL): |
| * Support for SSLv2 and SSLv3 sockets has been dropped, as per RFC 6176 |
| (2011) and RFC 7568 (2015). |
| * The Schannel backend now supports ALPN and thus HTTP/2. |
| * [QTBUG-62637] Added support for Schannel on Desktop Windows. To build |
| Qt with Schannel support use '-schannel' during configure. |
| * Added class QOcspResponse as a part of OCSP stapling support. |
| * [QTBUG-12812][QTBUG-17158] Added OCSP-stapling support for OpenSSL |
| backend |
| * [QTBUG-71828][QTBUG-73289] Fixed SSL verification when connecting to IP |
| address (no host name) if that IP address is listed in the certificate. |
| |
| **************************************************************************** |
| * QtTestLib * |
| **************************************************************************** |
| |
| - Added QTest::toString(const QModelIndex &idx) |
| |
| - Removed support for GPU_BLACKLIST files. Reimplementations or |
| equivalents of QTEST_MAIN() should remove their uses of |
| QTEST_ADD_GPU_BLACKLIST_SUPPORT and its _DEFS; they are still vacuously |
| defined, but serve no remaining purpose and shall be undefined in due |
| course. |
| |
| **************************************************************************** |
| * QtWidgets * |
| **************************************************************************** |
| |
| - QAbstractScrollArea: |
| * [QTBUG-69120] QTableView/QTreeView, when reporting their |
| viewportSizeHint(), now correctly take into account their scroll |
| bars' visibility and visibilityPolicy. |
| |
| - QHeaderView: |
| * dataChanged now respects the given roles to avoid useless |
| recomputations. |
| |
| - QLabel: |
| * Minor performance improvement when painting a label with an image. |
| |
| - QListWidget: |
| * [QTBUG-69807] Implemented moveRows in model |
| * [QTBUG-68977] Sped up handling of hidden items when working with large |
| data sets. |
| |
| - QPlainTextEdit: |
| * Added QRegularExpression find() method overload. |
| |
| - QTextEdit: |
| * Added QRegularExpression find() method overload. |
| |
| - QTreeView: |
| * Added expandRecursively() to expand all items below a given index. |
| |
| - QWidgetTextControlPrivate: |
| * [QTBUG-69735] Moved cursor selection to start. |
| |
| **************************************************************************** |
| * QtSql * |
| **************************************************************************** |
| |
| - SQLite: |
| * [QTBUG-63498] The json1-extension for the SQLite3 plugin is now enabled |
| by default. |
| |
| - PostgreSQL: |
| * QSqlDatabase is now stricter about table names when used with record() |
| and primaryIndex(). If the tablename was not quoted when it was |
| created, then the table name passed to record() and primaryIndex() |
| needs to be in lower case so that PostgreSQL is able to find it. |
