Stop Shipping Breaking Go APIs by Accident

Every Go release has one question that matters more than the diff itself: Did we break something users compile against? A pull request can look harmless. A few files changed, a type moved, a method now returns an error, a struct field disappeared. The commit history may look clean. The changelog may sound reasonable. But users do not depend on your commit messages. They depend on your public Go API . That is the purpose of relimpact : a small, fast tool that compares two Git refs and reports wha