The Windows 2016 1709 release is the first of the semi-annual updates for Windows Server – interestingly its referred to as Windows Server 1709 in the documentation.
Its now available for download through your Software Assurance channels and Windows evaluation centre. MSDN subscribers can also get a copy.
A big surprise is that 1709 is Server Core only! You can’t get a GUI version. The suggestion is to use the (very) incomplete project Honolulu web browser based admin tool to manage the servers. More on that in another post.
Windows Server 1709 new features are described here
The standouts are the new features for containers and virtual machines.