Updating client computers with win 2016 server
Even if there are no available approved updates on your WSUS server, the local machine should connect to WSUS and report that no update are available.
So you can install and run most applications "out of the box," as long as you have the right number of client licenses and meet the server licensing requirements. In some cases, though, you may need additional licenses in order to run your server software: For more information about server licensing, read Tech Soup's Guide to Microsoft Server Licensing, which contains links to guides on licensing specific Microsoft server products.
We'll cover licenses for server software, licenses for clients, and some advanced Microsoft licensing scenarios.
If choosing licenses for your Microsoft products is making your head spin, our guide to Microsoft server and client licensing is here to help.
The CALs themselves don't have any mode designation, so you can use either kind of CAL in either licensing mode.
With the upcoming launch of Windows Server 2016 and System Center 2016, for servers the licensing of Datacenter and Standard Edition will transition from processor licensing to physical core licensing.