Earlier quoted context omitted.
If you're installing FreeBSD today, use 15.0 Or just run -current in production, like we do. See https://people.freebsd.org/~gallatin/talks/OpenFest2023.pdf Or https://papers.freebsd.org/2019/fosdem/looney-netflix_and_fr...
While I also use -current, I don't think this is good advice to the kinds of people who don't know if they should be running 14.4 or 15.0. There are caveats to running -current (for example, you need to disable the built-in debugging stuff on -current to get decent performance but the debugging stuff is already disabled on actual releases), so I think for new people it's best to recommend they use the latest release…
You don't need to wonder about this because FreeBSD has an official, documented position on this topic[1]:
"... include work in progress, experimental changes and transitional mechanisms that may or may not be present in the next official release ..."
"... whether or not FreeBSD-CURRENT sources bring disaster or greatly desired functionality can literally be a matter of which part of any given 24 hour period you grabbed them in!"
"(is not) In any way ``officially supported'' by us."
[1] https://docs-archive.freebsd.org/doc/4.4-RELEASE/usr/share/d...