Microsoft has released Cumulative Update #10 for SQL Server 2008 R2 Service Pack 2.
My usual disclaimer: these updates are NOT for SQL Server 2008 (or SQL Server 2012). Only apply to systems where SELECT @@VERSION returns 10.50.xxxx, where xxxx is >= 4000. If xxxx < 4000, you need to start thinking about getting off the RTM or SP1 branch. Note that no more cumulative updates will be released for SP1, since support ended on October 8, 2013.