Release checklist

Pre-check:

• There are no pending issues in the Roadmap for this release (if there are, move them away or close them)
• Check the latest branch/commit:
  • in the Quaternion repo
  • in the Quotient repo (mind super-project-pointer)
  • 
• Make sure the dependent library version in CMakeLists.txt is up-to-date
• cmake --build . --target trbase should not change quaternion_en.ts; if it does, review, commit and push the changes before proceeding
• Run Clang-Tidy/Clazy analysis in Qt Creator
• Check that contents of README.md, SECURITY.md, and BUILDING.md are up-to-date
• Pull translations
• Rebuild and smoke-test the application

Actions:

• Update the version number in main.cpp
• Make/ask to make a screenshot highlighting new features
  • Add a screenshot to the gallery and update it in the source tree
• Go to the Releases page and make a draft for release notes:
  • Thank all contributors whose commits landed in this release
  • Describe all notable fixes/enhancements
• Add a release record to linux/com.github.quaternion.appdata.xml
• git commit && git push
• Finalise the release at GitHub:
  • Fill in the tag (plain version, no more leading v/rc)
  • Publish release notes
  • Update the Releases Wiki page
• Update the topic in #quaternion
• Update Flathub repo

Post-release:

• Open the release page in Incognito/Privacy mode; check:

  • the version (should be "Version ###")
  • the Git tag
  • the screenshot
  • download both Windows archives, unpack and smoke-test

• Add '+git' to the version number in 'main.cpp'

• git commit && git push

• Congratulate everyone and have a drink :)