- run tests on more Linux distributions
- add test runs with clang sanitizers (TSAN / UBSAN for now)
- check code formatting only once
- check test scripts formatting (shfmt)
- static analysis for test scripts (shellcheck)
- save more test logs and other debug info
- add missing pieces to Ubuntu packages
- test .debs on clean machine before publishing
- git clone full history for changelog generation
- support old versions of git on Linux
- rename some steps