It's too bad that homebrew adopted the "Apple Attitude" around dealing with legacy OS versions. I don't recall ever seeing a message while working in Linux saying "Oh, you're using an OLD version of Linux, that's unsupported! You're a Tier-3 Loser and we don't guarantee this is going to work!"

Even developer tools on Windows tend to be fairly graceful about you running Windows 7 or whatever.

Somehow Apple and their entire ecosystem has adopted this "Latest Version Or GTFO" attitude towards users and developers.