I think we need both a deprecation strategy for the current release series (particularly as we expect the refactor to do away with support for older Python versions), and a deprecation/API …

Improve stability when choosing the default version of CodeQL to use in code scanning workflow runs on Actions on GitHub.com. #1475 This change addresses customer reports of code …

Opinions on Repository API stability? I'm still pretty much the only one who has used it so that makes me say "still unstable"...

We also were the first to use tuf + in-toto at scale, which I assume has contributed to their current stability.