New Features in Qt 5.9

Note: This page is work in progress and should not be considered as final list of Qt 5.9 features before the beta release.

New Features (within existing modules)

• Qt Core
• Qt GUI
  • QPainter's GL engine is now functional with core profile OpenGL contexts as well.
  • QImage introduced reinterpretAsFormat to change format without changing data.
• Qt Quick
  • OpenGL shader program binaries used by QtGui (QPainter's GL paint engine) and the Qt Quick scenegraph are now cached on disk, improving application startup and view initialization times.
  • Added an OpenVG backend for Qt Quick.
  • Window-screen associations can now be made directly from QML via Window.targetScreen and Qt.application.screens. This allows creating multi-screen aware applications for desktop and embedded without involving C++ code.
• Qt Quick Controls 2
  • Introduced new QML types: DelayButton, ScrollView
  • Added multi-touch support
  • Editable ComboBox
  • Non-interactive persistent Drawer
  • Live value updates (by default) for Slider, RangeSlider, and Dial
  • Dedicated signals for notifying user interaction
    • AbstractButton::toggled(), Slider::moved(), SpinBox::valueModified(), ...
  • Incremental/discrete scrolling with ScrollBar
  • SwipeDelegate allows enabling/disabling the swipe, and opening programmatically
  • Vertical SwipeView
• Qt Widgets
• Qt WebEngine
  • Updated to Chromium 55 or 56
  • Switched internally to the new Chromium build-system GN
  • API for loading with HTTP POST
• Qt Bluetooth
• Qt Multimedia
• Qt Network
  • Added HSTS support (HTTP Strict Transport Security) to QNetworkAccessManager
  • Added redirects policy to QNetworkAccessManager (ManulRedirectsPolicy, NoLessSafeRedirectsPolicy, SameOriginRedirectsPolicy, UserVerifiedRedirectsPolicy)
• Qt WebSockets
• Qt Charts
• Qt 3D
  • Render Qt Quick 2 scenes to a texture and interact with them within 3D world
  • Technical Preview of new animation subsystem. Non-blocking, keyframe animations on the threadpool. Export from animations from Blender.
  • Physics Based Rendering (PBR) material in Qt3DExtras. Greatly improved appearance when used with environment maps.
  • 3D test support in Qt3DExtras
  • Level of Detail component allows toggling based on projected screen size or distance. Comes with convenience loader class to load different QML files for you.
  • Mesh is now plugin based. Comes with plugins for Wavefront OBJ, PLY and FBX formats. Easy to add others.
• Qt Virtual Keyboard
  • Added support for selection handles for the dedicated (desktop) keyboard.
  • Changed behavior of shift handler to only activate caps lock if the shift key is double-clicked.
  • Added support for external keyboard layouts, which allows overriding and exclusion of the built-in keyboard layouts.
  • Added language selection popup for faster selection of input language.
  • Added support for automatic selection of the only remaining word in the suggestion list.
  • The word candidate list is now automatically hidden when inactive.
• Embedded platforms
  • Added experimental DRM dumb buffer support to the linuxfb platform plugin, in order to help devices that do not support the deprecated fbdev model (or have problems with fbdev emulation).

New Modules

New Platforms

Technology Preview Modules

• Qt Remote Objects - A module that allows you to easily share QObject interfaces (Signals/Slots/Properties) between processes or devices

Deprecated Modules

The following modules are part of Qt 5.8 release, but deprecated and considered for removal in subsequent releases of Qt:

• Qt Script

Configurations