Microsoft has released Service Pack 1 for SQL Server 2014 , 14 May 2015.
Why do you need it?
The most obvious reason is, it is free!
Secondly, there are some key fixes and improvements included in this release. Below are some of the key highlights for me:
- FIX: Rollback causes database to go to suspect mode in SQL Server 2012 or SQL Server 2014
- FIX: SQL Server crashes when the log file of tempdb database is full in SQL Server 2012 or SQL Server 2014
- FIX: Incorrect data returned when you use DATE data type as a qualifier in a query in SQL Server 2014
- FIX: Error 8646 when you run DML statements on a table with clustered columnstore index in SQL Server 2014
You can find the download here.