As part of their Incremental Service Modelling, Microsoft have released SQL Server 2012 Service Pack 1 Cumulative Update #6.To apply this cumulative update package, you must be running SQL Server 2012 SP1. You may have to restart the computer after you apply this cumulative update package.
This CU contains 23 fixes and is pertinent for versions 11.0.3000 – 11.0.3373.0 but is not for SQL Server 2012 RTM (11.0.2100 – 11.0.2999). There seem to be quite a few SSAS updates in this release.