168 lines
7.2 KiB
Groff
168 lines
7.2 KiB
Groff
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Qt 5.12.1 is a bug-fix release. It maintains both forward and backward
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compatibility (source and binary) with Qt 5.12.0.
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For more details, refer to the online documentation included in this
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distribution. The documentation is also available online:
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http://doc.qt.io/qt-5/index.html
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The Qt version 5.12 series is binary compatible with the 5.11.x series.
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Applications compiled for 5.11 will continue to run with 5.12.
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Some of the changes listed in this file include issue tracking numbers
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corresponding to tasks in the Qt Bug Tracker:
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https://bugreports.qt.io/
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Each of these identifiers can be entered in the bug tracker to obtain more
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information about a particular change.
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****************************************************************************
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* Important Behavior Changes *
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****************************************************************************
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- qmake / WinRT:
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* Cross-builds will now ignore pre-set values of %INCLUDE% and %LIB%
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when building target executables. If necessary, use configure's -I and
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-L switches when building Qt, and pass QMAKE_INCDIR and QMAKE_LIBDIR
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on qmake's command line when building own projects.
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****************************************************************************
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* Documentation *
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****************************************************************************
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- Fixed the icons for the "file save" action that were inaccurate
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representations of a 3.5-inch floppy disk (the cut edge was on the wrong
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side). Now all floppy representations are physically accurate.
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****************************************************************************
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* QtCore *
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****************************************************************************
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- [QTBUG-71256] QString, QByteArray and QLocale's toDouble return an infinity
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on overflow (since 5.7), while setting ok to false; this was at odds with
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their documented behavior of returning 0 on failure. The documentation now
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reflects the actual behavior.
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- [QTBUG-71868] QString, QByteArray and QLocale's toFloat returned an
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infinity on double-overflow (since 5.7) but returned 0 on a finite double
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outside float's range, while setting ok to false; this was at odds with
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their documented behavior of returning 0 on any failure. They also
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succeeded, returning zero, on underflow of float's range, unless double
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underflowed, where they failed. Changed the handling of values outside
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float's range to match that of values outside double's range: fail,
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returning an infinity on overflow or zero on underflow. The documentation
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now reflects the revised behavior, which matches toDouble().
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- QCborStreamReader:
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* [QTBUG-71426] Made setDevice() clear the last error.
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- QCollator:
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* [QTBUG-58621] Added support for collation in the C locale, albeit this is
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only well-defined for ASCII. Collation sort keys remain unsupported on
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Darwin.
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- QContiguousCache:
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* [QTBUG-52125] Fixed a memory leak.
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- QObject:
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* [QTBUG-32340] Fixed a bug that caused isSignalConnected() to return
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true if the signal was connected and later disconnected.
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* [QTBUG-71550] Fixed a bug that caused isSignalConnected() not to
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report signals that were connected by the QML engine.
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- QPluginLoader:
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* [QTBUG-71443] Fixed the parsing of ELF headers (Linux, FreeBSD, Solaris,
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etc.), which could cause certain valid plugins to not be deteced as
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valid.
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- QRegularExpression:
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* [QTBUG-72539] The wildcardToRegularExpression method now returns a
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properly anchored pattern.
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- QSettings:
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* [QTBUG-72007] Fixed QSettings parsing of blank spaces after comment lines
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in INI-style configuration files.
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- QStringListModel:
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* setData will now emit the dataChanged() signal only if the string set
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is different from the one already contained in the model
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- QSysInfo:
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* [QTBUG-72489] Now returns "Mojave" in prettyProductName() for macOS
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10.14.
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- QUrl:
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* [QTBUG-71973] Changed the normalization done by
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QUrl::NormalizePathSegments) to match what web browsers do for non-local
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URLs.
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****************************************************************************
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* QtGui *
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****************************************************************************
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- Text:
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* Fixed a bug where eliding text could change the height of its bounding
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rectangle for certain fonts.
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* Improved appearance of monochrome text on some platforms.
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* Fixed so ShowTabsAndSpaces will use the correct font.
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****************************************************************************
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* QtSql *
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****************************************************************************
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- PostgreSQL:
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* Added support for PostgreSQL 11
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****************************************************************************
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* QtWidgets *
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****************************************************************************
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- Reverted a Qt 5.12.0 behavior change in QToolTip that made plain tooltip
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text be wrapped automatically.
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- [QTBUG-72844] Fixed a regression related to accepting a Drag'n'Drop event.
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- [QTBUG-27110] Reverted a change that caused a regression related to
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styling a QListView using CSS.
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- QWidgetLineControl/security:
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* Zero-out the string that contains a password entered into the
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QLineEdit
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* Preallocate a buffer for the string that contains the entered value
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when the QLineEdit serves as a password input field to minimize
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reallocations.
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****************************************************************************
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* Platform Specific Changes *
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****************************************************************************
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- Android:
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* QClipboard now supports HTML and URI data.
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- Windows:
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* Reduced the number of font engines that are created when loading new
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fonts, fixing crashes in some special cases where a large number of
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fonts are created during a short period of time.
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- X11:
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* [QTBUG-71296] Fixed a bug with open/close hand cursors not being shown
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correctly.
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* [QTBUG-46626][QTBUG-70756] Fixed a bug with dialogs hidden by other
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windows in certain use cases.
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****************************************************************************
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* Third-Party Code *
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****************************************************************************
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- [QTBUG-65503] Removed xkbcommon from bundled sources. This library is
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present on all supported platforms. The minimal required version now is
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0.5.0.
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- Updated bundled SQLite to version 3.26.0.
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****************************************************************************
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* Tools *
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****************************************************************************
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- moc now parses enum struct the same way as enum class therefore that
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keyword can be used with the Q_ENUM macro as well as Q_FLAG and
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Q_DECLARE_FLAGS.
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