Qt Quick Ultralite maintains source compatibility between minor releases. However, some changes may require you to adapt the application code. The following sections highlight such changes:

Important changes

• Enabled the critical assert error codes for debug builds only, and disabled them for Rel and MinSizeRel builds.
• Cypress Traveo II prebuilt libraries are built using the GHS 2017 compiler. You need the same compiler version to either use these libraries or recompile the core library.
• Downgraded the platform code for Renesas RH850 platform to C++03 and Cypress Traveo II to C++11.
• Added support for NXP MIMXRT1060-EVKB and dropped support for the earlier version of this board (MIMXRT1060-EVK).

New features

• Added support for software vector graphics.
• Added support for GHS 2015.1.7 compiler with C++03 on the Renesas RH850.
• Added documentation to guide developers migrate their resource configuration to a QmlProject.
• SDK upgrades:
  • STM32H750B SDK to v1.11.0
  • STM32F469 SDK to v1.27.1
  • Renesas RH850/D1M1A RGL SDK to v2.1.0a
  • NXP RT1050 and RT1064 to SDK v2.13.0
  • NXP RT1060 and RT1170 to SDK v2.13.1
  • Cypress Traveo II SDK to 1.2.1
• Added support for pausing and resuming an AnimatedSprite.
• Added the resourceAnimatedSpriteOptimizations QmlProject property to enable rendering only the changed regions of an image.
• Added support for generating a GHS Multi IDE project. Refer to the QmlProject Manual for more information about this option.
• Added a qmlprojectexporter command-line option to export the platform sources only.
• Added support for LVDS displays on Renesas RH850/D1M1A. Refer to the supported displays section for more information.

Fixed issues

• Fixed assertion for auto-wrapped Text items when its horizontal alignment is either Text.AlignRight or Text.AlignHCenter.
• Improved text cache performance.
• Moved texture cache to internal RAM.
• Improved kit configuration support in Qt Creator.
• Fixed SwipeView to update its currentIndex while dragging.
• Fixed the ProgressBar implementation to initialize its from and to properties with default values.
• Improved ResourceCropImageSequence optimization support to remove the transparent pixels from the image sequences.
• Fixed qulrcc to make sure it reuses saved data for the same frames.
• Optimized the memory allocations done by the DrawingEngine for path points.
• Fixed the shapes example to avoid rendering artifacts when drawing intersecting shape paths.
• Downgraded the example-platform implementation to C++03 so that it works on all platforms.
• Moved the project generation logic from qmlprojectexporter into a static library. This enables implementing different project writers that qmlprojectexporter could use.
• Fixed thermo demo to avoid the flickering artifacts on STM32F769.

New APIs

APIs for application development

• New QML Properties
• New QML Methods

New QML Properties

QML Type AnimatedSprite:

New QML Methods

QML Type AnimatedSprite:

Changes in earlier versions