- Only branches with "lts" prefix are suitable for long term support: GitHub release web functionality creates tags, human create lts_yyyymmXXX branch from that tag. Note: no dots in branch names!
- we pick commits from master into LTS branches
- after each commit if picked we add/pick Changelog.md
- use https://github.com/rusefi/rusefi/actions/workflows/build-firmware.yaml to trigger builds (use "LTS build" checkbox to get LTS handling)
- See https://rusefi.com/build_server/lts/ for LTS artifacts