Qt 6.12 LTS Released With QML Hot Reload, GPU-Accelerated CanvasPainter

Qt 6.12 is out as the latest Long-Term Support release of the cross-platform framework, with five years of maintenance. It adds QML Hot Reload, a production-ready GPU-accelerated CanvasPainter with the new Canvas2D element, logarithmic axes in Qt Graphs, and official HarmonyOS support.

• LTS release with five years of maintenance and a commercial edition aligned with the EU Cyber Resilience Act
• QML Hot Reload works via Qt Creator and the qmlpreview command-line tool
• CanvasPainter is production-ready for C++ and QML, while Canvas2D stays in Technology Preview
• HarmonyOS is now an official LTS platform; new QtQuick.Controls.Native style added