What's New in Qt 6.7

New Features in Qt 6.7

Qt Core Module

Qt Graphs Module

Qt Graphs3D

  • Data api doesn't require creating every data item into heap memory.
  • Added render to image functionality.

Qt Graphs2D

  • Technology Preview of 2D graphs.
  • Contains initial support for bar, line and scatter graphs.

Qt GRPC Module

  • Added the functionality to use interceptors for customizing the behavior of QtGRPC calls and streams. Now you can subclass QGrpcClientInterceptor and override the desired interception methods.
  • Introduced QGrpcServerStream, QGrpcClientStream and QGrpcBidirStream classes. Those are used to allow making client, server and bidirectional streaming calls respectively.

Note: The Qt GRPC Module is under Technology Preview.

Qt GUI Module

Qt Location Module

  • Nothing to see here.

Qt Multimedia Module

  • The new MediaPlayer::autoPlay and Video::autoPlay properties can be used to automatically start playback when a media source has been set.
  • The QCameraDevice has a new correctionAngle property. This property represents the rotation angle needed to compensate for the physical camera rotation of the camera compared to its native orientation.

Qt Network Module

Qt Positioning Module

  • Nothing to see here.

Qt Protobuf Module

  • Added the new serializer that implements JSON serialization and deserialization functionality for QProtobufMessage-based classes.
  • Added support of 'optional' fields in the Qt Protobuf generator. If the message field is marked as 'optional', it gets clear<fieldName> and has<fieldName> methods in addition to the regular field one.
  • Enum fields generated by the Qt Protobuf generator now preserve the case of first letter. Previosly generator capitalized the generated enum field names.

Note: The Qt Protobuf Module is under Technology Preview.

Qt QML Module

  • Added new features to QML Language Server: formatting, semantic and code snippet completions, renaming usages, and setting file generation in CMake via QT_QML_GENERATE_QMLLS_INI.
  • The translation context of a QML file can be set via pragma Translator
  • You can now declare QML_CONSTRUCTIBLE_VALUE and QML_STRUCTURED_VALUE on value types and construct objects of such types from QML. In fact you could already since Qt 6.5, but now it's officially supported.

Qt Quick Compiler

  • Bindings and functions that write properties of value types can now be compiled to C++
  • Optional chaining can now be compiled to C++
  • for..in iteration can now be compiled to C++

Qt Quick Module

  • Added the TextEdit.textDocument.source property for loading from a file, save() and saveAs() functions for writing. These are intended to replace XMLHttpRequest in text-handling use cases.
  • Added cursorSelection property to TextEdit and TextArea to inspect and modify properties of the selected text.
  • Updated the Text Editor example to demonstrate these features.
  • Added new text renderer which will give better results for rendering very large text. It can be selected by setting renderType to Text.CurveRendering.
  • Text classes got new APIs to work with variable fonts.
  • Rectangle can now have different radii on each corner.
  • Added preliminary support for embedding QWindows into the Qt Quick scene, along with a parent property on Window, to allow setting a visual parent of a Window.
  • The focusReason and focusPolicy properties of Control were moved to Item.
  • Added QQuickRhiItem as a modern alternative to QQuickFramebufferObject. This allows creating custom QQuickItem objects that render 3D graphics via any hardware accelerated graphics API supported by Qt's rendering hardware interface, i.e. OpenGL, Vulkan, Direct3D, or Metal.
  • Added a new QQuickRenderControl example that uses QRhi and is thus fully portable and works with all the supported 3D APIs. This shows how to redirect the Qt Quick content into a texture in a cross-platform manner.

Qt Quick Controls Module

Qt Quick 3D Module

Qt Quick 3D Physics Module

Qt Serial Bus Module

  • Added a method to QCanDbcFileParser, which enables DBC file parsing with an encoding other than UTF-8.

Qt Sql Module

  • The deprecated <qsql.h> header got removed. Use <qtsqlglobal.h> instead.

Qt Test Module

  • Nothing to see here.

Qt TextToSpeech Module

  • Nothing to see here.

Qt WebEngine Module

Qt WebView Module

  • Nothing to see here.

Qt Widgets Module

  • Added a QRhiWidget class (under technology preview) for rendering 3D graphics via any hardware accelerated graphics API supported by Qt's rendering hardware interface, i.e. OpenGL, Vulkan, Direct3D, or Metal.
  • QCheckBox got a new signal checkStateChanged that emits the new check state as a type safe Qt::CheckState enum value.
  • QDateTimeEdit got a new timeZone property

Qt SVG Module

  • Added support for some elements from SVG 1.1 standard. The elements are Mask, Symbol, Marker, Pattern, Filter, and Filter Primitives (feMerge, feColorMatrix, feGaussianBlur, feOffset, feComposite, feFlood)
  • Added QtSvg::FeatureSet enum to enable or disable rendering of the new elements.
  • Added setters and getters for the QtSvg::FeatureSet for QSvgRenderer and QSvgWidget. The new features are enabled by default.

Tools

Qt Designer

  • Qt Designer now writes fully qualified enumeration values to the .ui files in order to support scoped enumerations and Qt for Python. Support for reading these values has been back-ported to 6.6.1 and 6.5.4.

Platform Changes

Desktop Platforms

Windows

macOS

  • Nothing to see here.

X11

  • Nothing to see here.

Wayland Client on Linux

Mobile Platforms

Android

  • Re-factored the Android plugin Java code which, consists of:
    • Simplifying the architecture and the relation between the various classes (for example, between QtActivity, QtActivityLoader, and QtActivityDelegate).
    • Moving the QtLoader classes away from the public bindings package.
    • Removed usage of reflection.
  • Added preliminary support for child windows for Android to be consistent with Qt and its other QPAs. As a result of that, QScreen::grabWindow() is temporarily unsupported for now.
  • Set Android 14 as the maximum supported platform version, and the default platform SDK and target levels to API 34.
  • Set the supported Android NDK version to r26b (26.1.10909125) and JDK to 17.
  • Aligned the Mobile category examples with iOS.
  • Added QNativeInterface::QAndroidScreen that provides access to the Android Display id of a QScreen.
  • Added support for using ndk-stack with androidtestrunner to pretty print test crash reports.
  • Added CMake variable QT_ANDROID_DEPLOYMENT_TYPE to explicitly set the deployment type for the Android package.
  • Overall re-write and update for Qt Android platform documentation.

iOS

  • Nothing to see here.

Embedded Platforms

VxWorks

  • Added VxWorks 23.09 support as Technology Preview.

Build System Changes

  • Qt C++ headers now feature metadata for the IWYU tool.
  • CMake: You can now tweak the arguments for *deployqt tools in qt_generate_deploy_app_script(), qt_deploy_runtime_dependencies() by setting the DEPLOY_TOOL_OPTIONS.
  • CMake: qt_add_library() now considers the value of the BUILD_SHARED_LIBS variable. If the variable is defined, it has higher priority than the library type detecting logic in qt_add_library() when adding the library targets.
  • CMake: qt_standard_project_setup() allows you now to set the native UI language of your application, as well as the languages the UI is translated to. This is then picked up by qt_add_translations() calls to generate .ts and .qm files that match the given languages, generating a 'plural-only' .ts file for the native language.
  • CMake: You can now pass multiple targets to qt_add_translations() to extract translations from. Alternatively, you can let qt_add_translations() collect all targets of a project (done via the new qt_collect_i18n_targets() function), with the option to opt out of undesired targets on directory or target level.

List of API Changes

These pages contain an overview of API changes in Qt 6.7: