The SQL Server team has released SQL Server 2012 SP2 Cumulative Update #1. This cumulative updates Service Pack 2 to include the fixes from SP1 CU#10 and a few from CU#11, including the fix for the online index rebuild corruption issue I discussed recently on SQLPerformance.com. It also marks the first time in the SQL Server 2012 timeframe that both cumulative update branches are on roughly the same schedule, which makes many of us happy I'm sure. 🙂
Relevant for builds 11.0.5058 -> 11.0.5531. Do not attempt to install on SQL Server 2012 RTM (any build < 11.0.3000) or SP1 (any build < 11.0.5058), or any other major version. If you are on a different branch, see this blog post on blogs.sentryone.com for information on the latest fixes for RTM and Service Pack 1.