[TUHS] wrong HISTORY in 4.4BSD manual pages?

I was looking at several NetBSD manual pages and saw that some HISTORY sections had wrong .Bx or BSD reference like: HISTORY The xstr command appeared in 3.0BSD. I looked at a few and saw this was in 4.4BSD manual pages. By the way, when were these history sections added? (They aren't in 4.2BSD manual pages. I should look at 4.3 before asking ...) I didn't see any that refered to original Berkeley UNIX Software Tape nor 2BSD. But from looking at the 1BSD and 2BSD, I see: apropos was in 2bsd colcrt was in 1bsd but not in 2bsd even though 2BSD iul, soelim, and ssp manuals referenced it (why missing from 2BSD?) colrm was in 1bsd but not in 2bsd csh was in 2bsd (even 1bsd referenced the upcoming "csh") ctags was in 2bsd, but as a shell script using ed expand was in 1bsd and 2bsd finger was in 2bsd fmt was in 2bsd from was in 2bsd head was in 1bsd and 2bsd lock was in 2bsd last was in 1bsd and 2bsd mkstr was in 1bsd and 2bsd msgs was in 2bsd printenv was in 2bsd soelim was in first BSD and 2BSD tset was in 1bsd and 2bsd w was in 2bsd as finger -sf whatis was in 2bsd whereis was in 2bsd xstr was in 2bsd lastlog file format was in 1bsd and 2bsd (?? maybe different format??) Any comments on the above? Or is this simply because "2BSD" is not a operating system release per se, so "3.0BSD" is correct? But this makes me wonder if my 2BSD versions are newer than first 2BSD, so really 3BSD is correct for some of this. I was going to ask a NetBSD list about this to fix these histories, but decided to consult TUHS instead. Okay to change history to fix history? :)