Qt 6.9 Known Issues
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- Check that your system meets Qt's requirements
- All open issues can be found from Jira
- RTA findings here
- Supported development platforms are listed here
All platforms
- The qtprotobufgen and qtgrpcgen source code is not compatible with protobuf versions v30.0 or newer, because of API changes in libprotoc. (see QTBUG-134885)
- Http requests with http/2 will sometimes error out and fail with "HPACK decompression failed" (see QTBUG-135800)
Linux
- When using GNOME Wayland 46.0, Qt Designer's main window may not show under certain circumstances. The issue should be resolved in GNOME Wayland 46.2 (see QTBUG-127920 ).
- For Linux arm64/aarch64, if system glibc < 2.38, can't use official binary from Qt Installer. Workaround is build from source. (see QTBUG-129421 ).
macOS
Windows
- Windows on ARM: Debuggers And Tools ARM64 redistributable package is not available from Qt online installer / Qt Creator. Debuggers And Tools can be installed e.g. with MSVC 2022 ARM64 installation (see QTBUG-129157).
- Windows on ARM: Qt3D module not included in prebuild binaries, see discussion in https://bugreports.qt.io/browse/QTBUG-125439
Android
iOS
WebAssembly
Embedded Linux
- Windows on ARM: Boot2Qt's USB networking support does not yet work on WoA. (QTBUG-117504)