This article lists all update rollup packages that were released for Microsoft System Center 2012 Operations Manager and Microsoft System Center 2012 Operations Manager Service Pack 1 (SP1). The updates are listed according to build number. Update rollup build numbers that have a larger numeric value include the fixes from all previously released update rollup packages. Any version of System Center 2012 Operations Manager can be updated to a later-version update rollup. You cannot uninstall a later-version update rollup to downgrade to an earlier-version update rollup.