What's New in Qt 5.6

Qt 5.6 is a long-term support (LTS) release.

New Modules

  • Qt Quick Controls 2
    • Included as a technology preview.
    • Provides lightweight QML types for creating performant user interfaces for embedded and mobile devices.
  • Qt Serial Bus
    • Included as a technology preview.
    • Provides a framework for accessing serial bus backends in general, and implementations for Controller Area Network (CAN) bus and Modbus.
  • Qt Compositor(Qt Wayland)
    • Included as a technology preview.
    • Provides a framework to develop Wayland compositor.
  • Qt WebEngine Core
    • Provides a public API shared by both Qt WebEngine and Qt WebEngine Widgets.

New Features in Qt 5.6

Qt 3D Module

  • New buffer and attribute API.
  • Support for OpenGL instanced rendering where supported.
  • Support for OpenGL primitive restart.
  • Support for clip planes, stencil operations, and many more OpenGL features.
  • Support for easily generating buffer data from C++ and QML (using JavaScript typed arrays).
  • qgltf tool to compile scenes into glTF.
  • Support for loading glTF scenes via SceneLoader.
  • Support for controlling multi-sampling with Scene3D.
  • More standard materials: per-vertex colors and Gooch shading.
  • New APIs for mouse input and collision detection.
  • New Logic aspect to have QML/C++ code executed synchronously with the Qt 3D aspect engine. Useful for prototyping future Qt 3D features.

Qt Core Module

Qt Canvas3D Module

  • Support for using Qt Quick items as textures.
  • Support for rendering directly to Qt Quick scene background or foreground.

Qt GUI Module

  • Improved cross-platform OpenGL ES 3.0 and 3.1 support to enable developing mobile/embedded applications utilizing GLES3 features.
  • Improved cross-platform high-dpi support.
  • Raster engine support for rendering internally with 16bits-per-color.
  • QImageReader now exports gamma values and other meta data for some image formats.

Qt Multimedia Module

  • New Playlist QML type.
  • New audio role API for the media player (C++ and QML).
  • Support for camera focus and video probe on WinRT.
  • New functions in QML AudioEngine to support dynamic object creation.

Qt NFC Module

  • Added support for Android.

Qt Network Module

Qt Platform Abstraction (QPA)

  • Optional support for using FreeType on macOS.
  • Added support for NVIDIA Jetson TK1 Pro boards running Vibrante Linux via a new eglfs backend utilizing DRM, EGLDevice, and EGLStream.
  • Added support for Intel Atom-based NUCs.
  • Added support for WEC2013.
  • Windows 10 fully supported (classic and WinRT app)
  • Windows Store apps are now composited inside a XAML layer, allowing better integration with the native UI layer.
  • Use libinput, if available, as the default on eglfs and linuxfb.

Qt Positioning Module

  • Added support for macOS.
  • Added support for GPS receivers exposed as a serial port on Windows desktop (all versions).
  • Removed libgeoclue dependency for the GeoClue backend.

Qt QML Module

  • Support for writing JavaScript function names to Linux's perf output.
  • Reduced overall memory consumption.

Qt Testlib Module

  • More stable input event handling.

Qt WebView Module

  • Added support for WinRT.

Qt WebEngine Module

  • Based on Chromium 45.
  • Support for pepper plugins including Flash.
  • Support for unbundling and linking with system libraries on Linux.
  • Support for following global Qt proxy settings.
  • More WebActions from QtWebKit and WebAction API in QML.
  • New QtWebEngineCore module for shared low-level API.
  • New core API for custom URL schemes.
  • New core API for intercepting and blocking network requests.
  • New core API for tracking or blocking cookies.

Qt Widgets Module

  • Allow programmatic resizing of dock widgets.
  • Allow dropping dock widgets into floating docks.
  • Allow the user to re-arrange tabbed docks.
  • Allow horizontal scrolling using a mouse wheel in QListView.
  • Support QOpenGLWidget and QQuickWidget on WinRT.

Removed Functionality

  • Qt WebKit
  • Qt Declarative (Qt Quick 1)

Deprecated Functionality

  • Enginio
  • Qt Script

These modules are still included in Qt 5.6, but are considered for removal in future releases.

List of API Changes

The pages below contain a list of API changes in Qt 5.6:

Additions to Other Qt 5 Releases

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.