Are you referring to the possibility of a minor release introducing a bug? Yes, of course that's possible, nobody is pretending humans are infallible. When it

Are you referring to the possibility of a minor release introducing a bug? Yes, of course that's possible, nobody is pretending humans are infallible. When it happens, just issue a patch release to that minor release to fix the bug. Versioning is about communicating intent, it's not a guarantee that nobody can ever make a mistake. But if you're constantly introducing bugs in minor releases, that's a sign of sloppy test infrastructure and it will motivate me to migrate away from such a library. But the occasional bug is normal, fix it quick and move on.