Interestingly, Apache is roughly twice as old as SemVer (dating SemVer using the Wayback Machine looking at semver.org). I'd have guessed SemVer was younger than that, but time is weird.
Incidentally, that means that Apache is not, in fact, using SemVer. They're using the old-school even-odd system.
Incidentally, that means that Apache is not, in fact, using SemVer. They're using the old-school even-odd system.