I found a 7.1-RELEASE manpage stating "first appeared in FreeBSD 8.0". A little bit of grepping revealed a few more: setfib(1) setfib(2) ffs(3) ffsl(3) ffsll(3) fls(3) flsl(3) flsll(3) memchr(3) memrchr(3) malo(4) crashinfo(8) savecore(8) Some others are correctly stating "7.1" for example textdump(4). Cheers, Jan Henrik