Here's my list of fixes on interest for SQL Server 2014 SP1 CU2.
Cumulative update 2 for SQL Server 2014 SP1
Build number: 12.0.4422.0
August 17, 2015
FIX: CMEMTHREAD waits occur when you execute many ad hoc queries in SQL Server 2012 or SQL Server 2014
FIX: Incorrect results occur in a rare scenario when you run a query that contains a nested loop join and performance spool in its inner side in SQL Server 2012 or 2014
FIX: The bcp utility may crash when you use SQL Server 2012 or SQL Server 2014