GitLab

https://www.qt.io/blog/qt6-development-hosts-and-targets
https://doc.qt.io/qt-6/modulechanges.html

Tasks collector when switching to Qt6

• switch to function onFrameFormatChanged() {} fe2fc194
• KF6 migration #1111
• minimum requirements C++17
  (port source code to C++17? Use clang-tidy modernize-use-override)
  (gcc >= 8, clang >= 6, or MSVC >= 2017)
• minimum CMake 3.16
• change some CMake code (replace "Qt5" with "Qt")
• Windows compiler: MSVC 2019, MinGW 8.1 (https://doc.qt.io/qt-6/windows.html)
• Porting from Qt 5 to Qt 6 using Clazy checks. The checks have to be run against Qt 5, and the fixed code will only compile with Qt 6. https://www.qt.io/blog/porting-from-qt-5-to-qt-6-using-clazy-checks, https://doc.qt.io/qt-6/porting-to-qt6-using-clazy.html

Task that can be already done while still using Qt5

• Replace QRegExp by QRegularExpression (since Qt 5.0)
• Replace QStringRef by QStringView (since Qt 5.10, feature complete since 5.15) We don't have this in the code

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Host operating systems in Qt 6.0:

• Support only Windows 10 2004 (64bit Intel; msvc2019 or mingw81/gcc8.1): https://doc.qt.io/qt-6/windows.html
  (Sep-21: 14.8% Win7 user, https://gs.statcounter.com, 11.8% Win7 user on Kdenlive homepage)
• macOS only in Version 10.15 (64bit Intel; XCode 11), 64bit: https://doc.qt.io/qt-6/macos.html

Linux (https://doc.qt.io/qt-6/linux.html)

• Ubuntu 20.04 (64bit Intel; gcc9)
• CentOS 8.1 (64bit Intel; gcc9)
• SLES 15 (SUSE Linux Enterprise Server, 64bit Intel; gcc10)
• Open SUSE 15.x (64bit; gcc9)