XEmacs, ah, yes, the venerable Emacs fork that got ahead for a short amount of time, but soon fell behind. Last time I checked a couple of years ago, I remember trying it out and deciding not to use it because it looked laughably out-of-date. What ever happened to it in recent times? Ah yes, the inevitable fate came to it: because it had fallen too far behind GNU Emacs and there were too few developers left on XEmacs, it was retired to maintenance mode indefinitely. Essentially, it’s a clear way to state that XEmacs is slowly fading away, but without immediately declaring its official end.
20190802/https://en.wikipedia.org/wiki/XEmacs