My code wasn't broken, I had a tsconfig file that was formatted by prettier and prettier removed trailing commas. Then I updated prettier without reformatting a

My code wasn't broken, I had a tsconfig file that was formatted by prettier and prettier removed trailing commas. Then I updated prettier without reformatting and my tests failed because prettier rejected the now-incorrectly formatted tsconfig file. Also your analogy is wrong and not what is happening here. Suppose that a JPEG encoder encoded files as png when the flag is `--filetype=unknown`. Then in a patch release the behavior changes so that "unknown" means jpeg. That's closer to what happened here.