The 13th cumulative update release for SQL Server 2012 SP2 is now available for download at the Microsoft Support site.
•CU#13 KB Article: https://support.microsoft.com/en-us/kb/3165266
•Understanding IncrementalServicingModel for SQL Server
•SQL Server Support Information: http://support.microsoft.com/ph/2855
•Update Center for Microsoft SQL Server: http://technet.microsoft.com/en-US/sqlserver/ff803383.aspx
The 4th cumulative update release for SQL Server 2012 SP3 is now available for download at the Microsoft Support site.
•CU#4 KB Article: https://support.microsoft.com/en-us/kb/3165264
•Understanding Incremental Servicing Model for SQL Server
•SQL Server Support Information: http://support.microsoft.com/ph/2855
•Update Center for Microsoft SQL Server: http://technet.microsoft.com/en-US/sqlserver/ff803383.aspx
SQL Server 2014 Service Pack 2 (SP2). This service pack is available on the Microsoft Download Center, MSDN, Eval Center, MBS/Partner Source and VLSC. SQL Server 2014 SP2 includes a rollup of released hotfixes as well as more than twenty improvements centered around performance, scalability and diagnostics . These improvements enable SQL Server 2014 to perform faster and scale out of the box on modern hardware design,
SQL Server 2014 SP2 now includes:
•All fixes and CUs for SQL 2014 released to date.
•Performance, scale and supportability improvements.
•New improvements based on connect feedback items filed by the SQL community.
•Improvements originally introduced in SQL 2012 SP3, after SQL 2014 SP1 was released.
see https://blogs.msdn.microsoft.com/sqlreleaseservices/sql-2014-service-pack-2-is-now-available/