Another alternate moral: Something that seems like a very minor patch-level change which just fixes a bug and doesn't affect your API actually can break running

Another alternate moral: Something that seems like a very minor patch-level change which just fixes a bug and doesn't affect your API actually can break running production code. Many people like to pretend that they can follow a discipline like Semantic Versioning (http://semver.org/ http://semver.org/). But minor changes like this can cause subtle bugs when you are upgrading between patch-level versions of a component that you're working with.