Qt6 Windows 7 Direct

If you must support Windows 7, freeze your toolchain at Qt 5.15.2 (open-source) or purchase a Qt5.15 LTS commercial license. If you are starting a new project, target Windows 10/11 and benefit from Qt6’s performance, security, and modern APIs. This text is accurate as of Qt6.7. Windows 7 will never be officially supported by Qt6.

Introduction The release of Qt6 (initially in December 2020) marked a significant modernization of the popular cross-platform framework. With it came a new minimum platform baseline. For Windows, this meant a formal shift: Windows 10 (64-bit) became the minimum supported operating system. This decision sent ripples through the developer community, particularly among those maintaining legacy systems or industrial software running on Windows 7. qt6 windows 7

set QT_QPA_PLATFORM=windows:opengl Or use the opengl platform plugin: If you must support Windows 7, freeze your toolchain at Qt 5