Microsoft has released :
SQL Server 2008 Service Pack 3 Cumulative Update #13
•Build # 10.00.5846
•KB Article: KB #2880350
•2 fixes
•Relevant for builds 10.00.5500 -> 10.00.5845
•NOT for SQL Server 2008 R2 (10.50.xxxx)
and
CU #6 for Service Pack 1.
•KB article: KB #2874879
•Build # is 11.0.3381
•This build has 23 fixes by my count. The most interesting (to me) are:
◦KB #2877100 : FIX: A memory leak occurs when you enable AlwaysOn Availability Groups or SQL Server failover cluster in Microsoft SQL Server 2012
◦KB #2878139 : FIX: “Using ‘dbghelp.dll’ version ‘4.0.5’” error is logged in SQL Server 2012 when a statement or job executes the sys.fn_xe_file_target_read_file stored procedure
if you’re still on RTM, you should start thinking about migrating to SP1
Relevant for builds 11.0.3000 -> 11.0.3380. Do not attempt to install on SQL Server 2012 RTM (any build < 11.0.3000) or any previous version.