The old fallacies of WWW site changes equals software changes, and unchanged code equals non-existence, and Wikipedia being gospel for computing topics, rear their ugly heads again.

I follow the FediVerse robot that announces MirBSD CVS updates, which is quite active. The last major change, apart from some doco, was a fix to rdate at the end of May 2026, just 2 months ago. And even if MirOS BSD were unchanged for longer than that, it would very much still be around.