mirror of https://github.com/qt/qtdoc.git
522 lines
24 KiB
Plaintext
522 lines
24 KiB
Plaintext
// Copyright (C) 2025 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
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/*!
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\page whatsnew610.html
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\title What's New in Qt 6.10
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\ingroup whatsnewqt6
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\brief Lists the new features in Qt 6.10.
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\meta sortkey 610
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\section1 New and Restored Modules in Qt 6.10
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Qt 6.10 adds the following modules and tools:
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\list
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\endlist
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\section1 New Features in Qt 6.10
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\section2 Qt Core Module
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\list
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\li QLocale is now updated to CLDR v47
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\li QLocale::uiLanguages() now includes truncated entries and is better-ordered
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\li QLocale::toString() overloads for integral type now accept precision and width
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\li The system locale is now distinguished in qDebug() output from the
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CLDR-derived one for the same language, script and territory
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\li QLocale::toString(double, ...)'s exponent separator now again matches the case
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requested
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\li QCalendar::daysInMonth() for unspecified year now gives the maximal value
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\li The new QRangeModel class provides an implementation of QAbstractItemModel that can
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operate on any C++ range.
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\li QXmlStreamReader::readRawInnerData() for retrieving the raw inner XML content of an element.
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\li Error handling API for QXmlStreamWriter with \l {QXmlStreamWriter::}{Error} enum,
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\l {QXmlStreamWriter::}{error()}, \l {QXmlStreamWriter::}{errorString()},
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and \l {QXmlStreamWriter::}{raiseError()} functions.
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\li QXmlStreamWriter::stopWritingOnError() property, allowing users to control
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whether output halts immediately after encountering an error.
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\li Added \l QFuture::cancelChain() to cancel the entire continuation
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chain using any non-finished QFuture from the chain.
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\li The new qEnvironmentVariableIntegerValue returns the numerical value of an environment
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variable, or \c{std::nullopt} if the variable is not set or doesn't hold an integer.
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\li QFileInfo::isOther() returns true for file system entries that are neither a directory,
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regular file, or symbolic link.
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\li Added QSortFilterProxyModel::endFilterChange() taking a
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\l{QSortFilterProxyModel::}{Direction} parameter, to balance a previous call to
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\l{QSortFilterProxyModel::}{endFilterChange()}. These APIs replace
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\l{QSortFilterProxyModel::}{invalidateFilter()}, which will be deprecated starting from
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Qt 6.13.
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\li Two new overloads of QMetaObject::connect() make it possible to connect the
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QMetaMethod of a signal to a slot function or lambda.
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\li QCborValue::toStringView() and QJsonValue::toStringView() return a view of the
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string stored in the value, without any allocations.
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\li Use \l{QDataStream::operator bool()} and \l{QTextStream::operator bool()}
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to check whether the stream is in an error state.
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\li Use \l{QByteArray::}{nullTerminate()} to add a null terminator to a
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QByteArray or QString, e.g. after constructing them via
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\l{QByteArray::fromRawData()}. Test whether the array or string is null
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terminated with \l{QByteArray::}{isNullTerminated()}.
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\li QByteArray can now implicitly convert to a \l{QByteArray::operator std::string_view()}
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{std::string_view}.
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\endlist
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\section2 Qt DBus Module
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\list
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\li QDBusConnectionInterface::serviceCredentials() returns the connection
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credentials for the process currently holding the specified bus service.
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\endlist
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\section2 Qt Graphs Module
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\list
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\li Filled surface graph type added: \l{QSurface3DSeries::DrawFilledSurface}{DrawFilledSurface}
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\li Text elide support for 2D axes added: \l{QAbstractAxis::textElideMode}
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\li Pie slice label hiding support for small sized slices added:
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\l{QPieSeries::angleSpanVisibleLimit}, \l{QPieSeries::angleSpanLabelVisibility}, \l{QPieSeries::LabelVisibility}
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\li Multi-axis support for 2D graphs added: \l{QAbstractSeries::axisX}, \l{QAbstractSeries::axisY}
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\li Hover support for 2D series added: \l{QAbstractSeries::isHovered}
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\li Support for controlling plot area clipping in 2D graphs added: \l{GraphsView::}{clipPlotArea}
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\li Support for querying data point coordinates in LineSeries added: \l{QLineSeries::dataPointCoordinatesAt}
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\li Support for rendering a slice into an image in Bars3D and Surface3D added:
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\l{Q3DBarsWidgetItem::renderSliceToImage}, \l{Q3DSurfaceWidgetItem::renderSliceToImage},
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\l{QtGraphs3D::SliceCaptureType}
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\li Added \l{Bars3DNode}, \l{Scatter3DNode}, and \l{Surface3DNode} for
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adding 3D graphs in QtQuick3D applications inside View3Ds
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\li Graph draw ordering support for 2D graphs added: \l{QAbstractSeries::zValue}
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\li Categorized logging support added
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\endlist
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\section2 Qt GRPC Module
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\list
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\li Performance improvements and bug-fixes for the \l{QGrpcHttp2Channel}.
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Read the blogpost \l{https://www.qt.io/blog/qtgrpc-tips-tricks-sweet-spots}{here}.
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\li Added the \c{unix-abstract} \l[QtGrpc]{Transportation scheme}
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to \l{QGrpcHttp2Channel}.
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\li Added \l{QGrpcOperation::}{serverInitialMetadata} and
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\l{QGrpcOperation::}{serverTrailingMetadata} interfaces to
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\l{QGrpcOperation}.
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\li Added \l{QGrpcCallOptions::filterServerMetadata} and
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\l{QGrpcChannelOptions::filterServerMetadata} options to control the
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filtering of the received server-metadata.
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\li Added \l{QGrpcCallOptions::addMetadata} and
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\l{QGrpcChannelOptions::addMetadata} for supporting incremental
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client-metadata updates.
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\li Deprecated \l{QGrpcChannelOptions::}{metadata} interfaces in favor
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of QMultiHash based interfaces: \l{QGrpcChannelOptions::metadata(QtGrpc::MultiValue_t)}
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{metadata(QtGrpc::MultiValue)},
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\l{QGrpcChannelOptions::setMetadata(const QMultiHash<QByteArray,QByteArray>&)}
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{setMetadata(QMultiHash)}.
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\endlist
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\section2 Qt GUI Module
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\list
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\li QStyleHints::accessibility provides access to user accessibility
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preferences, such as whether the system has enabled a setting for increased
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contrast.
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\li Added \l {QAccessibilityHints} to access individual accessibility
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settings.
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\li QRhi: Added support for enumerating 3D graphics adapters (physical devices),
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when running on Direct 3D 11, 12, or Vulkan, via the \l{QRhi::}{enumerateAdapters()}
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function.
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\li QPainterPath::setCachingEnabled() can be used to turn on the caching
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of calculated values, increasing performance for certain operations
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at the expense of additional memory use.
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\li Added QPainterPath::trimmed() to return a section of the path.
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\endlist
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\section2 Qt HttpServer Module
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\list
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\li Added whitelist and blacklist of subnets in \l{QHttpServerConfiguration}.
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\li Added configurable keep-alive timeout in \l{QHttpServerConfiguration}.
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\li Made \l{QHttpServerRequest} copyable.
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\endlist
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\section2 Qt Lottie Animation
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\list
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\li Added support for solid, null and precomposition layers.
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\li Added \l{lottietoqml} tool. This is an equivalent tool to \l{svgtoqml} and it converts
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Lottie files to Qt Quick scenes described in QML. It is currently in tech preview.
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\li Added a plugin for \l{VectorImage} which enables it to load Lottie files in addition
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to SVG. This feature is tech preview and requires
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\l{VectorImage::assumeTrustedSource}{assumeTrustedSource} to be set to \c true.
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\li Added \l{lottietoqml example} and \l{qtlottieviewer example} to demonstrate usage
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of \l{Qt Lottie Animation}.
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\endlist
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\section2 Qt Multimedia Module
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\list
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\li Added a native PipeWire audio backend.
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\li Audio pitch compensation for the FFmpeg-based QMediaPlayer based on the excellent
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\l{https://signalsmith-audio.co.uk/code/stretch/}{Signalsmith Stretch library}.
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The behavior can be customized via the \l {QMediaPlayer::}{pitchCompensation}
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property.
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\li \l {QCapturableWindow} can now be constructed from \l {QWindow} in both C++ and QML.
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\li Added a new class \l {QPlaybackOptions} that allows users to control
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low-level FFmpeg media playback options, for example, playback intent,
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network timeout, and probe size.
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\li In \l {QAudioSink} and \l {QAudioSource}, added methods that allow users
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to operate with the underlying audio buffer in frame count instead of byte count.
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\endlist
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\section2 Qt Network Module
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\list
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\li Added fromFile() method to QSslCertificate.
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\li Added setDateTimeValue() to QHttpHeaders, a convenience method for setting
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date and time values in HTTP headers.
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\li Added convenience methods to QHttpHeaders to retrieve values as
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QDateTime, integers, or lists of these types.
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\endlist
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\section2 Qt Network Auth Module
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\list
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\endlist
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\section2 Qt Protobuf Module
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\list
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\li Added \l {Qt Protobuf Mutable Getters} to generated Protobuf
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messages, making them accessible using the \c {mut} prefix.
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\endlist
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\section2 Qt QML Module
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\list
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\li Added a new TreeModel QML type that allows the definition of a tree structure in
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the QML file and works with TreeView.
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\li Added SortFilterProxyModel QML type to sort and filter model data.
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This feature is in tech preview.
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\li Added the delegateModelAccess property to DelegateModel and all views. You can now
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write through required properties into the model.
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\li Added the \l{Synchronizer} QML type. Synchronizer keeps two or more properties in sync
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without using bindings. This feature is in tech preview.
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\li Added semicolon customization rules to qmlformat. You can now control whether
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semicolons are added to the end of JS statements.
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\li Added new qmllint warnings focused on improving compatibility with Qt Creator,
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including checks for \QDS-specific limitations, additional JavaScript-related warnings,
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and several new warnings related to QML enums and imports.
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\li Removed support for manipulation of complex row structures from TableModel.
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\endlist
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\section2 Qt Quick Module
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\list
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\li Added FlexboxLayout QML type to arrange the quick items in flexible
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way as similar to
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\l{https://www.w3.org/TR/css-flexbox-1/}{CSS Flexbox}. This feature
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is in tech preview.
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\endlist
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\section2 Qt Quick Controls Module
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\list
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\li The FluentWinUI3 style has improved support for contrast themes on Windows 11.
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\li Added \l {SearchField} Control
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\endlist
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\section2 Qt Quick Dialogs Module
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\list
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\li Added property \l [QML QtQuickDialogs]{Dialog::popupType}{popupType} which can be used to
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control whether a non-native dialog should open in a separate window or as an item
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in the existing scene. This has no effect when using native dialogs.
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\endlist
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\section2 Qt Quick Effects Module
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\list
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\endlist
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\section2 Qt Quick 3D Module
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\list
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\li Added \l [QtQuick3D]{ParticleEmitter3D::emitMode}{emit-mode} to shaped emitters to allow
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particles to be emitted based on the surface normals of the shape.
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\li Implemented \l [QtQuick3D]{ParticleEmitter3D::reversed}{reversed} emitters to enable
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particles to run from end time to begin time.
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\li Several lightmap-related improvements and changes:
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\list
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\li Introduced texels-per-unit based lightmap sizes, adding
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the \l[QtQuick3D]{Model::texelsPerUnit} and \l[QtQuick3D]{Lightmapper::texelsPerUnit}
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properties and replacing the now deprecated
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\l[QtQuick3D]{Model::lightmapBaseResolution} property.
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\li Introduced \l[QtQuick3D]{Lightmapper::source}{Lightmapper::source} property to set
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one lightmap source for the whole scene, replacing and deprecating
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\l[QtQuick3D]{BakedLightmap::loadPrefix}.
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\li Added a builtin GPU-based Non-local Means (NLM) denoising for baked lightmaps,
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controlled via the \l[QtQuick3D]{Lightmapper::denoiseSigma} property.
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\li The lightmap baking window has been improved to show a progress bar and an
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estimation of time remaining.
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\li Baking is now done in its own RHI context and does not block rendering of the running
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application.
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\li RAM and VRAM usage has been decreased when baking certain scenes.
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\li Added a lightmap viewer tool for debugging baked lightmap files via GUI or
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command-line.
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\endlist
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\li Fixed color import for glTF2 baseColorFactor by correctly converting from linear to sRGB,
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aligning it with the spec.
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\li Added \l [QtQuick3D.Helpers]{CapsuleGeometry} to QtQuick3D.Helpers with fixed textures,
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async creation support, and exposed uvProfile property.
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\endlist
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\section2 Qt Quick 3D XR Module
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\list
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\li Exposed \l [QtQuick3D.Xr]{XrSpatialAnchorListModel::requestSceneCapture}{method} for
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requesting room scanning for spatial anchors.
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\endlist
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\section2 Qt Quick 3D Physics Module
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\list
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\li Deprecated CapsuleGeometry in favor of the improved one in QtQuick3D.
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\endlist
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\section2 Qt Quick VectorImage Module
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\list
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\li Added support for animated SVGs that matches animation support in Qt SVG.
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\li Added \l{VectorImage::assumeTrustedSource}{API} to indicate whether source file is
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trusted or not.
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\li Added \l{VectorImage::animations}{API} to control animation behavior.
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\li By including a plugin provided by \l{Qt Lottie Animation}, \l{VectorImage} can now also
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show Lottie files. This feature is regarded as tech preview and requires
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\l{VectorImage::assumeTrustedSource}{assumeTrustedSource} to be set to \c true.
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\endlist
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\section2 Qt Serial Port Module
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\list
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\li Added support for limiting write buffer size using \l {QSerialPort::}
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{writeBufferSize} property.
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\endlist
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\section2 Qt Sql Module
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\list
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\endlist
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\section2 Qt SVG Module
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\list
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\li Added support for CSS animations for fill-opacity, stroke-opacity, and opacity properties.
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\li Added an example that demonstrates how to view SVG files.
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\endlist
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\section2 Qt Test Module
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\list
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\li Data-driven benchmarks now identify both global and local data in plaintext names
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\li Backtraces from lldb are now disabled on Apple Silicon
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\li When QTest prints floating-point values in a comparison, it now gives full
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precision and includes a hexfloat version
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\endlist
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\section2 Qt VirtualKeyboard Module
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\list
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\li Added PURL and CPE information to the attribution files of 3rd party sources.
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\li Added Latvian keyboard layout.
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\endlist
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\section2 Qt WebEngine Module
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\list
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\li Added support for Chromium extensions, using \l{QWebEngineExtensionManager} and \l{QWebEngineExtensionInfo}
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\li Added support for adding additional trusted CA certificates to a website profile
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without adding them to the platform certificate store:
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\l {QWebEngineProfileBuilder::}{setAdditionalTrustedCertificates}
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\li Added support for Back/Forward cache enabled using \l{QWebEngineSettings::BackForwardCacheEnabled}
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\endlist
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\section2 Qt WebView Module
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\list
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\li Added WebView2 plugin for the Windows platform. The new backend uses a native
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COM API from the Chromium based Edge browser called
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\l {https://learn.microsoft.com/en-us/microsoft-edge/webview2/}{WebView2}.
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Therefore, you can now provide web content without shipping Qt WebEngine.
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\endlist
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\section2 Qt Widgets Module
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\list
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\li Added support for increased contrast mode for the fusion, macOS, and Windows 11
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widgets styles.
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\li Default editor event handling in item views has moved into the new
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\l{QAbstractItemDelegate::handleEditorEvent()} function, which custom
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event handlers can use to continue with standard event handling.
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\li Use \l{QListWidget::}{setSupportedDragActions()} in QListWidget,
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QTableWidget, and QTreeWidget to change the supported drag actions.
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\li The new QLayout::horizontalSizeConstraint and
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QLayout::horizontalSizeConstraint properties allow individually setting
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the horizontal and vertical size constraints of the widget.
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\endlist
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\section2 Qt XML Module
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\list
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\endlist
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\section2 Qt Mqtt Module
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\list
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\li Add support for WebSockets/Secure WebSockets
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\endlist
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\section1 Tools
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\section2 QDoc Documentation Generator
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\list
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\li QDoc can now automatically add “view source” links to every C++ API
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declaration. Enable the feature with the new \l {url.sources-variable}
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{url.sources} family of configuration variables
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(\c {url.sources.enabled}, \c {url.sources.rootdir},
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\c {url.sources.linktext}).
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\li QDoc now detects circular inheritance in QML types using Floyd’s
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cycle-finding algorithm and reports the problem instead of getting
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stuck in an infinite loop.
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\li QML property groups defined in \c {.qml} files are recognised and
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shown as a single grouped property when you document them with
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\c \qmlproperty commands.
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\li Source files generated by Qt tools (\c moc_, \c uic_, \c qrc_, etc.)
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are now skipped automatically, which shortens QDoc build times on
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large projects.
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\li If you set the \l {usealttextastitle-variable} {usealttextastitle}
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configuration variable, QDoc copies each image’s \c alt text into a
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HTML \c title attribute, improving accessibility/tool-tips.
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\li The data type shown for a QML property inside a \c {.qml} file can now
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be overridden directly in the \c \qmlproperty command, even for
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non-aliased properties.
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\li The \l {documentationinheaders-variable} {documentationinheaders}
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option is no longer offered as a technical preview; rather, it is
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considered stable. It was first introduced in Qt 6.9.
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\endlist
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\section2 Qt Linguist
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\list
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\li Added support for organizing ID-based translations with custom
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labels in Qt Linguist and lupdate.
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\li Introduced a QML form preview feature in Qt Linguist for visual
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validation of translations in context.
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\li Updated Qt Linguist with a refreshed UI, including new icons,
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improved color palette, and better handling of dark mode.
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\li lupdate and lrelease now support mixing ID-based and
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text-based translations within the same document.
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\li Removed the Clang-based parser from lupdate.
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\li Unified support for meta strings (comments like //: and //~) across
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different programming languages in lupdate.
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\li Added new i18n examples to the documentation.
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\li lrelease now provides the -fail-on-unfinished option to fail the
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build if there are unfinished translations.
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\endlist
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\section1 Platform Changes
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\section2 Build System Changes
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\list
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\li Usage of a private Qt module Foo now requires a call to
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\c{find_package(Qt6 COMPONENTS FooPrivate)} to make the
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\c{Qt6::FooPrivate} target available.
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\li Added a \c DISCARD_FILE_CONTENTS option to \c{qt_add_resources()}.
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\li The \c FILENAME_VARIABLE option of
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\c{qt6_generate_deploy_[app_]script}, which was deprecated in
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Qt 6.6.0, has been removed.
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\li Added the \c NO_PLUGINS argument to \c
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qt_deploy_runtime_dependencies. This turns off plugin deployment
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altogether.
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\li Added the arguments \c INCLUDE_PLUGIN_TYPES,
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\c EXCLUDE_PLUGIN_TYPES, \c INCLUDE_PLUGINS, and \c EXCLUDE_PLUGINS
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to \c qt_deploy_runtime_dependencies.
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\li Added arguments for selecting Qt plugins to
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\c qt_generate_deploy_app_script.
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\li \c qt6_import_plugins doesn't have any effect anymore on plugin
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deployment with the CMake deployment API on Linux.
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\li \c qt6_deploy_runtime_dependencies now supports the following plugin
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selection flags on Linux: \c INCLUDE_PLUGINS,
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\c INCLUDE_PLUGIN_TYPES, \c EXCLUDE_PLUGINS, \c EXCLUDE_PLUGIN_TYPES.
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\li Added a \c DISCARD_QML_CONTENTS option to \c{qt_add_qml_module()},
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that removes original QML and JS file contents from the target's
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resource system.
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\endlist
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\section2 Desktop Platforms
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\section3 Windows
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\list
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\endlist
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||
|
||
\section3 macOS
|
||
\list
|
||
\li Windows that opt into extended dynamic range (EDR) now trigger expose
|
||
event on screen brightness change
|
||
\li The titleUIElement accessibility property is now supported
|
||
\li Service menu integration is now rich-text aware
|
||
\li QOperatingSystemVersion::MacOSTahoe represents macOS 26
|
||
\endlist
|
||
|
||
\section3 Wayland Client on Linux
|
||
\list
|
||
\endlist
|
||
|
||
\section2 Mobile Platforms
|
||
|
||
\section3 Android
|
||
|
||
\section4 Qt for Android
|
||
\list
|
||
\li Updated Gradle to version 8.14.2 and Android Gradle Plugin AGP to version 8.10.1.
|
||
\li Added support for Android 12 Splash Screen.
|
||
\endlist
|
||
|
||
\section4 Qt Quick for Android
|
||
\list
|
||
\li Added multiple arguments support for signals under QtQuickView.
|
||
\endlist
|
||
|
||
\section3 iOS
|
||
\list
|
||
\li Added QPointingDevice support for Apple Pencil
|
||
\li Fixed rotation for standard Apple Pencil
|
||
\li Added support for hover feature for Apple Pencil 2nd gen or later
|
||
\li Windows that opt into extended dynamic range (EDR) now trigger expose
|
||
event on screen brightness change
|
||
\li Update requests will now be paused when the app moves out of active state
|
||
\li QScreen now also reports inverted screen orientations
|
||
\li RLIMIT_STACK now reflects the effective stack size
|
||
\endlist
|
||
|
||
\section2 Embedded Platforms
|
||
|
||
\section3 Boot to Qt
|
||
\list
|
||
\endlist
|
||
|
||
\section3 Real-Time Operating Systems
|
||
\list
|
||
\li Real-time operating system support is provided only for LTS releases. For non-LTS
|
||
releases, support is available exclusively through Professional Services.
|
||
\endlist
|
||
|
||
\section1 Modules Deprecated in Qt 6.10
|
||
|
||
The following modules are deprecated. We strongly advise against using them
|
||
in new code.
|
||
|
||
\list
|
||
\li \l{Qt Charts}
|
||
\li \l{Qt Data Visualization}
|
||
\endlist
|
||
|
||
The Qt Charts and Qt DataVisualization modules are deprecated. They continue
|
||
to be part of the licensed software, and remain part of the Qt Project.
|
||
However, for new code we recommend that you use \l{Qt Graphs}. Also, consult
|
||
the documentation for \{Qt Graphs Migration from Qt Charts}{migrating from
|
||
Qt Charts} and \l{Qt Graphs Migration from Qt DataVisualization}{migrating
|
||
from Qt Data Visualization}.
|
||
|
||
For more information about the life-cycle of modules in Qt, please consult
|
||
\l{https://contribute.qt-project.org/quips/14#deprecating-a-module}{QUIP-14}.
|
||
|
||
\section1 List of API Changes
|
||
|
||
These pages contain an overview of API changes in Qt 6.10:
|
||
\list
|
||
\li \l {New Classes and Functions in Qt 6.10}
|
||
\li \l {Obsolete Classes}
|
||
\endlist
|
||
*/
|
||
|
||
/*!
|
||
\page newclasses610.html
|
||
\title New Classes and Functions in Qt 6.10
|
||
\ingroup whatsnewqt6-api
|
||
\meta sortkey 610
|
||
\brief A list of new APIs in Qt 6.10.
|
||
|
||
This page contains a comprehensive list of all new classes and functions
|
||
introduced in Qt 6.10.
|
||
|
||
\sincelist 6.10
|
||
*/
|