[mdlug] Package update question

[Michael ORourke]

Lug nuts,

This question came up the other day and I was wondering if you guys had any solutions to this scenario...
Lets say you have a pair of servers which are used for development and production.  Both servers are running the same versions of all the installed packages and are running fine.  Then you do an update via yum on the development server, before updating the production server, but find out that one of the updates breaks an application.  Assuming that you have identified the package that is causing the problem, how do you backout just that one package?  Or would you have to uninstall the broken package then reinstall the old version manually?  Of course, you could check which version of the package the production server is running, so you know which one to reinstall.

-Mike