Directly from the SQL Server Release Service blog, here the latest updates for SQL Server 2014:
Cumulative Update #12 for SQL Server 2014 SP1
Cumulative Update #5 for SQL Server 2014 SP2
and then, an interesting link on SQL Server Native Client, which explains better the SNAC lifecycle.
Stay Tuned! 🙂
Alessandro Alpi's Blog 
Thanks for updates Alessandro.