Heart of professional enterprise client management is Microsoft SystemCenter Configuration Manager
With the new SCCM version we will also see something like a continous servicing model to make sure its always up-to-date.
You may know the current hazzles of deploying Cummulative Updates to SCCM 2012 (SP2 / R2 SP1 etc.). This will went away in the future also.
A good starting point for the latest Preview informations can be found here: https://technet.microsoft.com/library/dn965439.aspx
Another MUST-HAVE is the ConfigManager Team Blog:
http://blogs.technet.com/b/configmgrteam/
More to come here later. Check this out from time to time for extensions.
Helpfull tools:
SCCM PreRequisites Checker (and do the stuff if needed) Tool:
https://gallery.technet.microsoft.com/ConfigMgr-2012-R2-e52919cd