[CentOS] Update question

I have some customer machines that have not been updated for some time,
and are still on CentOS 5.2.  While reading the release notes for 5.4, I
have not yet seen anything that looks like it needs attention, but are
there any known issues or "gotchas" related to moving directly from 5.2
to 5.4?

Comments, pointers, things to look for are all welcome.

Thanks muchly.

-- 
Ron Loftin                      reloftin at twcny.rr.com

"God, root, what is difference ?"       Piter from UserFriendly