I'm wondering, because I use several of these packages (directly or indirectly), but Cauldron seems to have up-to-date versions.
There are a couple packages that are really unmaintained (i.e. abandoned by their developers). One is procmail. Maybe it should be replaced with maildrop. I started using maildrop recently and it works just fine, though I'm keeping procmail around because it's still listed as needed by fetchmail. It seem to me, as a complete amateur, that that could be solved just by having maildrop provide MailTransportAgent.
The other is CVS, required by gettext-devel. More specifically, it's required by autopoint. Doing a web search, it seems that Debian moved autopoint into a separate package to prevent this. Whether autopoint still requires CVS is another matter. It's possible not, since gettext has moved to git.