It’s funny how wrong this is.[1] No, `--porcelain` is machine output format, and the machine output format is (sensibly) versioned (you of course need to version such output—the output of `git status` writ large is not versioned afaik).

This [2] answer by VonC even quotes a mail where someone said that it was “[their] fault, to some degree.”

[1] Because it proves the opposite point.

[2] https://stackoverflow.com/a/6978402/1725151