On May 31, Microsoft finally posted SQL Server 2012 Service Pack 1 Cumulative Update 4, which is Build 11.0.3368. This release was about two weeks later than expected, which is a little unusual for Cumulative Updates. I count 38 fixes in the public fix list.

These are probably the two most interesting fixes for the Database Engine:

An update is available for SQL Server 2012 Memory Management

FIX: Out-of-memory errors related to a memory clerk in SQL Server 2012

Remember, this CU is only for SQL Server 2012 Service Pack 1.