[CentOS] CentOS 4.7 glibc update: not announced?

Fri Apr 24 09:40:40 UTC 2009
William L. Maltby <CentOS4Bill at triad.rr.com>

Quick Q: while running my A.M. update today, I see several updates that
I haven't seen announced yet. The one concerning me is glibc. I killed
the update since it glibc is so central to a system.

Is it safe to install? If so, I presume I'll want to update it first and
then the rest of the system?

TIA for any information.

-- 
Bill