This is Qt 6.7.2 backport that runs on Windows 7/8. The repository contains patched source files from the qtbase module. Approach is based on this forum thread but better: many improvements amongst important fallbacks to default Qt 6 behaviour when running on newer Windows.

• After replacing qtbase source files with the patched ones from this repository, you can compile Qt yourself using compiler and build options you need.
• You can use our compile_win.pl build script (uses Visual C++ 2022 with OpenSSL 3.0.13 statically linked)
• You can download our prebuild Qt dlls which also have Qt Designer binary for demonstration

Qt 6.7.2 designer running on Windows 7:

Known issues:

• QRhi using DirectX 11/12 is not ported

Older versions:

• Qt 6.6.3
• Qt 6.6.2
• Qt 6.6.1
• Qt 6.6.0
• Qt 6.5.3
• Qt 6.5.1

License

The repository shares Qt Community Edition terms which imply Open-Source terms and conditions (GPL and LGPL).