Machine-parseable errata?

[Steve Gaarder]

I'm using OCS Inventory to create a database of packages and their 
versions for my SL machines.  I'd like to write a script that goes through 
the database and flags the ones that are out-of-date, indicating how 
important an upgrade is.  Is there a source of package versions and
errata that is easy to parse by machine?

thanks,
Steve Gaarder
System Administrator, Dept of Mathematics
Cornell University, Ithaca, NY, USA
gaar...@math.cornell.edu