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400 lines
15 KiB
Plaintext
400 lines
15 KiB
Plaintext
Qt 5.11 introduces many new features and improvements as well as bugfixes
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over the 5.10.x series. For more details, refer to the online documentation
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included in this 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 5.11 series is binary compatible with the 5.10.x series.
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Applications compiled for 5.10 will continue to run with 5.11.
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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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- [QTBUG-63150] Characters invalid in XML, such as 0x0 or 0xfffe, as well
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as strings containing unmatched UTF-16 surrogates are now suppressed
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from the output of QXmlStreamWriter and cause the error flag to be set.
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- Logging (including qDebug and qWarning):
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* The QT_LOGGING_TO_CONSOLE environment variable has been deprecated.
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Use the more specific QT_ASSUME_STDERR_HAS_CONSOLE or
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QT_FORCE_STDERR_LOGGING, depending on your usecase.
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****************************************************************************
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* General Notes *
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****************************************************************************
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Deprecation Notices
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-------------------
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- Microsoft Visual Studio 2013 (compiler version 12.0) is no longer
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supported with this Qt version.
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- macOS 10.10 is no longer supported with this Qt version.
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Third-Party Code
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----------------
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- Removed attribution for QTemporaryFile: The original code got rewritten.
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- Documented use of "Unicode Character Database (UCD)" in Qt Core.
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- Clarified use of "Unicode Common Local Data Repository (CLDR)" in the
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documentation. Also updated SPDX license name / ID.
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- Sqlite was updated to version 3.23.1
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- Libdbus-1 code in Qt D-Bus is now properly documented. The code is
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licensed under AFL-2.1 OR GPL-2.0-or-later.
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- Bundled HarfBuzz-NG copy updated to 1.7.4.
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****************************************************************************
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* Library *
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****************************************************************************
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QtCore
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------
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- [QTBUG-38156] Apple Unified Logging is now supported on Apple platforms.
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- QAbstractItemModel:
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* Added QAbstractItemModel::checkIndex(), a debugging function for
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QAbstractItemModel subclasses.
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- QBitArray:
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* Added fromBits(), which creates a QBitArray from a dense bit array,
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and bits(), which returns that.
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- QDateTime:
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* [QTBUG-64401] Years up to 9999 can now be parsed without error
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(previously 8000 and beyond were treated as invalid) in all formats
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(not only in ISO format). Widgets handling dates now support dates to
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9999, likewise.
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* [QTBUG-63072] When parsing dates and times from strings, fixed-width
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date-time fields, such as a "dd" for day, QDateTime now rejects all
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values that should be padded, rather than only doing so when the value
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is a prefix of some value that would fill the field-width. Use a
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single letter for the field, e.g. "d" for day, if you want to accept
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short values. (QDateTimeEdit is not affected.)
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- QJsonValue:
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* fromVariant() conversion now converts from QUrl and QUuid using
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special encoding forms to ensure best JSON compatibility.
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- QLockFile:
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* [QTBUG-63425] QLockFile can now properly conclude that a lock file
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from a previous boot of the same device is stale and can be removed.
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This is implemented only for Linux and Apple operating systems.
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- QMetaObject:
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* [QTBUG-66744] It is now possible to use template class instances
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inheriting from a Q_GADGET in Qml.
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- QSaveFile:
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* [QTBUG-66268] Fixed an issue that would cause QSaveFile::commit() to
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fail if Unix signals were delivered at the same time.
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- QScopedPointer:
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* Added get(), for compatibility with std::shared_ptr.
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- QSharedPointer:
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* Added get(), for compatibility with std::shared_ptr.
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- QString:
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* Added remove() overload taking QLatin1String.
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- QStringBuilder:
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* Added support for char16_t characters and strings.
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* Added support for QStringView.
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- QSysInfo:
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* [QTBUG-63425] Added machineUniqueId() and bootUniqueId().
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- QThread:
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* [QTBUG-53357] Changed how Qt thread priorities are mapped to QNX
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system thread priorities.
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- QUrl:
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* Fixed a bug in parsing IPv6 addresses with more than 4 hex digits in a
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component.
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- QUuid:
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* Added a parameter to both toString() and toByteArray() to allow
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controlling the use or not of the braces and dashes in the string
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form.
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- QVarLengthArray:
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* Added rvalue overloads of prepend and insert.
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* QVarLengthArray can now contain movable but non-copyable types, such as
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std::unique_ptr.
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* Added missing rvalue overload of operator+=() and operator<<().
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- QVariant:
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* Conversions of QDateTime to strings now contain the millisecond
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components.
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- QVector:
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* Added rvalue overloads of prepend and insert.
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* Added missing rvalue overload of operator+=() and operator<<()
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QtGui
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-----
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- [QTBUG-59762] The QT_QPA_PLATFORM environment variable and the -platform
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argument now support a list of platform plugins in prioritized
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order. Platforms are separated by semicolons.
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- QGuiApplication:
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* Added fontChanged() signal.
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- QIcon:
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* [QTBUG-33123] Added fallbackSearchPaths() that will be used to find
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icons missing in the current icon theme.
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- QStaticText:
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* [QTBUG-65836] Fixed explicitly set width not being respected.
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- Text:
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* [QTBUG-45957] Fixed a bug where QStaticText would not use the
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QPainter's pen color for text when other text colors were also in use.
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Internally this reserves QColor(0, 0, 0, 0) for use with QStaticText.
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* Added QFontMetrics::horizontalAdvance() and
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QFontMetricsF::horizontalAdvance() to replace the confusingly named
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width() function. The latter has now been deprecated.
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* [QTBUG-65345] Fixed an issue where changing the letter spacing type of
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a QTextCharFormat would not cause its font to update.
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QtNetwork
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---------
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- QHostAddress:
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* Added isGlobal(), isLinkLocal(), isSiteLocal(),
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isUniqueLocalUnicast(), and isBroadcast() classification functions to
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complement isLoopback() and isMulticast().
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* Fixed a bug in parsing IPv6 addresses with more than 4 hex digits in a
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component.
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- QNetworkAccessManager:
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* [QTBUG-61397] Added Http2DirectAttribute to enable 'direct' HTTP/2
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protocol without ALPN/NPN and without protocol upgrade negotiations.
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* [QTBUG-66913] Fixed a crash in HTTP/2 protocol handler (when server
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responds with redirect or some error status code early, not wating
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for a stream to be closed on client side).
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- QNetworkInterface:
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* Added type().
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* Added maximumTransmissionUnit().
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* Added preferredLifetime() and validityLifetime() to
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QNetworkAddressEntry that report the remaining lifetime of the address
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in the network interface.
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* Added dnsEligibility() to QNetworkAddressEntry to indicate whether the
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address is eligible or not for publication in DNS or similar
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mechanisms.
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* [QTBUG-67226] Fixed a regression in reporting the local address of a
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point-to-point tunnel network interface.
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- QSslSocket:
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* [QTBUG-67584] When using OpenSSL 1.1, it now correctly sets protocol
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version for QSsl::TlsV1_0, QSsl::TlsV1_1 and QSsl::TlsV1_2.
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* [QTBUG-67112] On WinRT QSsl::SecureProtocols (default) now enables
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TLSv1.1 and TLSv1.2.
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* On WinRT QSsl::TlsV1SslV3 now enables SSLv3 and not just TLSv1.
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QtPrintSupport
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--------------
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- Larger improvements to the CUPS print dialog.
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* Added an advanced options tab in the printer properties, containing
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all the printer options exposed through the CUPS API.
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* Implemented support for installable options (add-ons to the printer).
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* Added support for storing the selected settings between application runs.
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* Added support for localized options in the advanced tab.
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* The CUPS print dialog now supports printing of arbitrary ranges.
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- QPrintDialog
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* [QTBUG-58733] Fixed handling of custom page sizes.
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QtSql
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-----
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- OCI support:
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* [QTBUG-23] Added support for the TIMESTAMP data type.
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- PostgreSQL support:
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* [QTBUG-63714] Added support for forward-only queries (requires libpq
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version 9.2 or later).
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* Added support for multiple result sets.
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- QSqlDatabase:
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* [QTBUG-216] QSqlDatabase::database() will return an invalid
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QSqlDatabase if the calling thread does not own the requested
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QSqlDatabase.
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QtTest
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------
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- The qtest_global.h header is now deprecated. Include qttestglobal.h
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instead.
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- Added QAbstractItemModelTester, a class to help testing item models.
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QtWidgets
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---------
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- [QTBUG-62094] QDesktopWidget has been deprecated. Use the corresponding
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QScreen functions instead.
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- [QTBUG-49374][QTBUG-65237][QTBUG-49374] Fixed several issues related
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to HiDPI support in QStyle.
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- Item views:
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* [QTBUG-48725] QTreeView now calls canFetchMore() and fetchMore() when
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the bottom of the QTreeView is scrolled to.
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* [QTBUG-65082] Add ability to show QJsonValue::Bool/Double to
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QTreeView, QTableView and QListView.
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- QAbstractItemModel:
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* Implemented improved support for the optional "role" parameter in the
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"dataChanged" signal.
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- QColorDialog:
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* [QTBUG-64500] Fixed persistence of custom colors when relaunching an
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application.
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- QHeaderView:
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* Flat treeviews can now allow the user to move the first column (like
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in Qt 4.x) using the new method QHeaderView::setFirstSectionMovable().
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* MinimumSectionSize/MaximumSectionSize is now respected when calling
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resizeSection().
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- QLineEdit:
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* Implemented quick text selection by mouse in QLineEdit.
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* Placeholder text is now used as accessible description if the latter
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has not been set.
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- QListView:
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* QListView now honors css :first/:middle/:last Pseudo-States.
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- QMenu:
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* [QTBUG-25669] Fixed a bug in QMenu that caused QMenuBar::triggered() to
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be fired multiple times.
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- QMenuBar:
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* Added overloads of addAction() using Qt 5 signals and slots.
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- QStandardItemModel:
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* [QTBUG-45114][QTBUG-10872] Fixed setItemData() incorrectly deleting
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unmodified data. That behavior is not following QAbstractItemModel's
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documented behavior which is no modification of data not provided in
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parameter.
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- QStyle:
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* [QTBUG-53094] Added SH_ComboBox_AllowWheelScrolling as a style hint to
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enable/disable the use of the mouse wheel in a QComboBox. This
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defaults to true in all styles except the macOS one so there is no
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change in existing behavior.
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- QTextEdit/QPlainTextEdit
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* [QTBUG-63868] context menus will now open on right mouse click even if
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the focus policy is Qt::NoFcous (allowing text copy).
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- QTreeWidgetItem:
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* QTreeWidgetItem::insertChildren now ignores insertions happening at
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invalid indices, for consistency with QTreeWidgetItem::insertChild.
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****************************************************************************
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* Platform-specific Changes *
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****************************************************************************
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Android
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-------
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- The application and dependent Qt libraries are now loaded on the same
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thread as main() is run on, ensuring that global static initializers,
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constructor functions, and main() are all run on the same thread. The
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same applies during application shutdown, for destructors of global
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objects, and destructor functions.
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Linux/EGLFS
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-----------
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- [QTBUG-63088] The DRM+GBM backend now exposes the DRM/GBM device handle
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under the key "dri_fd", queriable via nativeResourceForIntegration().
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Linux/XCB
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---------
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- [QTBUG-56452] Added missing dead key symbols, enabling their use with
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the "compose" input module.
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- Added support for flatpak portals. Flatpak is a software utility for
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software deployment and package management. It provides a sandbox
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environment in which users can run applications in isolation from the
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rest of the system. To communicate with the system flatpak uses portals,
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which are designed to be a bridge between sandboxed applications and
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desktop/system running on user's computer. Flatpak runs automatically
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this as service, called xdg-desktop-portal, which exports portals on DBus
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and which are by default visible to all applications running under
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Flatpak.
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- [QTBUG-44938] Qt now falls back to X11 core keycode information if an XKB
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keymap could not be determined through the connection.
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- ibus:
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* Support ForwardKeyEvent signal
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Windows
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-------
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- [QTPM-487][QTBUG-53024][QTBUG-43190][QTBUG-61926][QTBUG-38499]
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[QTBUG-38337][QTBUG-38501][QTBUG-38502][QTBUG-38504][QTBUG-38505]
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[QTBUG-38507] The Windows Accessibility back end, formerly based on
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Microsoft Active Accessibility, was replaced with a new implementation
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based on Microsoft UI Automation.
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- [QTBUG-44594] Added support for End-User Defined Characters in Qt.
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iOS
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---
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- [QTBUG-59042] The Apple Pencil now generates QTabletEvents, with the
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complete feature set (tilt, rotation, pressure).
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macOS
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-----
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- QMacStyle does no longer depend on HITheme — or Carbon for that matter.
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Its implementation now relies exclusively on AppKit and custom code for
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rendering and pixel metrics.
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****************************************************************************
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* Tools *
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****************************************************************************
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configure & build system
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------------------------
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- [QTBUG-61260] Fixed build with -sanitize address.
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- [QTBUG-61373][Windows] Restored default -prefix to C:\Qt\Qt-<version>\.
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- [QTBUG-66355] pkg-config is now tried first to find system pcre2-16.
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- [QTBUG-66675] Fixed -debug-and-release builds with qtquickcompiler.
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- [Windows] OpenSSL 1.1 detection is now automatic.
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- [X11] The -xkb-config-root command line switch has been removed as it
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is no longer needed when configuring with -qt-xkbcommon-x11.
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- Added the -gdb-index option to speed up debugging with GDB.
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- More Qt features were made optional as part of the Qt Lite project.
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- Removed compatibility of the modules with CMake < 3.1.
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qmake
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-----
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- [QTBUG-35131][Xcode] Fixed build breakage when an extra compiler's
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output directory (OBJECTS_DIR, MOC_DIR, etc.) contains "/../".
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- [QTBUG-45211][iOS] Fixed building of QML based test cases.
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- [QTBUG-66265][VS2017] Fixed building projects with Windows 8.1 SDK.
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- [QTBUG-66770][Android][x86] The clang makespec now adds -mstackrealign.
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- [QTBUG-67011] Fixed immediate RESOURCES when using an absolute RCC_DIR.
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- [QTBUG-67286][Darwin] Fixed error messages when SDK cannot be resolved.
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- [Darwin] Fixed the selected SDK's compilers not being used for plain C
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sources.
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- [Darwin] Fixed QMAKE_BUNDLE_DATA with extra compiler generated files.
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