Ya se encuentra disponible el último CU para SQL 2008 R2, antes de instalarlo es recomendable como siempre probarlo en testing.

Aquí les dejo el link

Este CU repara los siguientes bug

2522893(http://support.microsoft.com/kb/2522893/ )
FIX: A backup operation on a SQL Server 2008 or SQL Server 2008 R2 database fails if you enable change tracking on this database

2525665(http://support.microsoft.com/kb/2525665/ )
FIX: SQL Server 2008 BIDS stops responding when you stop debugging a SSIS 2008 or a SSIS 2008 R2 package

2525665(http://support.microsoft.com/kb/2525665/ )
FIX: SQL Server 2008 BIDS stops responding when you stop debugging a SSIS 2008 or a SSIS 2008 R2 package

2530913(http://support.microsoft.com/kb/2530913/ )
FIX: "Error: 17066" occurs when you create a partitioned nonclustered index in SQL Server 2008 R2 if a parallel execution plan is used

2535660(http://support.microsoft.com/kb/2535660/ )
FIX: Role membership is synchronized even if the SynchronizeSecurity element is set to the SkipMembership value in SSAS 2008 or in SSAS 2008 R2

2537467(http://support.microsoft.com/kb/2537467/ )
FIX: You cannot use SQL Server Management Objects (SMO) to transfer data from a table in SQL Server 2008 or in SQL Server 2008 R2

2539098(http://support.microsoft.com/kb/2539098/ )
FIX: "Runtime error: the property DBPROP_MSMD_UPDATE_ISOLATION_LEVEL cannot be found" error when an application tries to create a connection to SSAS 2008 R2

2539378(http://support.microsoft.com/kb/2539378/ )
FIX: Replmerg.exe crashes when it enumerates changes to a statement in SQL Server if the stored procedure contains more than 4,000 characters

2545989(http://support.microsoft.com/kb/2545989/ )
FIX: "A time-out occurred while waiting for buffer latch" error when many transactions concurrently update a database in SQL Server 2008 R2 if the database uses the snapshot isolation level

2547017(http://support.microsoft.com/kb/2547017/ )
FIX: Instances of DAX functions that have no names incorrectly appear when you add a calculated member to a report that uses an SSAS 2008 R2 database as a data source

2559662(http://support.microsoft.com/kb/2559662/ )
FIX: Slow performance when you render a report that returns a long string of text in SSRS 2008 R2 if the text contains no carriage return characters

2562753(http://support.microsoft.com/kb/2562753/ )
FIX: Slow performance when an MDX query uses unary operators on parent/child hierarchy members in SSAS 2008 R2 if you define a scope calculation on these members and if the query accesses multiple dates in a time dimension

2563216(http://support.microsoft.com/kb/2563216/ )
FIX: Dynamic image does not work in a page header or footer in SSRS 2008 R2 if the value expression uses the Global!PageNumber variable

2563924(http://support.microsoft.com/kb/2563924/ )
FIX: "The incoming tabular data stream (TDS) protocol stream is incorrect" error when the SQLPutData function inserts the SQL_NULL_DATA value in a TVP in SQL Server 2008 R2