Microsoft Ignite is happening this week. This is the obvious event for Microsoft to release the availability information for Windows Server 2016 availability. Well, it happened, and availability information was released.
Windows Server 2016 is available for evaluation beginning today and will be on the October price list. Volume licensing customers will be able to download fully licensed software at General Availability in mid-October.
This statement of availability was taken from a Technet blog. Review the full article for more information.