Recently Microsoft has changed the Server requirements for Skype for Business Server 2015 page on TechNet https://technet.microsoft.com/en-us/library/dn951388.aspx Last update was on 2017-02-23 : Currently there is NO Support for Windows Server 2016 for Skype for Business, but Microsoft has put up a note that says the following.
Note: Windows Server 2016 is not included in this list of supported Operating Systems right now, but we’re planning to add it as a supported option after Skype for Business Server Cumulative Update 5 is released. Until then, please don’t try to use Windows Server 2016 as an OS for your Skype for Business deployment today, as it’s not yet supported, and we don’t recommend it. And check back to this page once the cumulative update is released to confirm Windows Server 2016 is added to our supported list at that time.
What does that mean and when can we expect support for Windows Server 2016?
The latest Cumulative Update for Skype for Business was released on February 13th 2017 here : https://www.microsoft.com/en-us/download/details.aspx?id=47690. This is the Cumulative Update February 2017 also known as the CU4 HF1. This means that the next CU most likely will support Windows 2016 as this will probably be the CU5 Microsoft is talking about in the notes section on TechNet. Generally Microsoft releases a Skype for Business Cumulative Update every 3 months so we can expect the CU5 to be there around May/June timeframe, this is not a fixed date as we don’t know the exact schedule, but looking at previous CU releases this is what we can expect. But you never know if Microsoft is going to postpone the CU update to support Windows Server 2016 or it may be very well be an interim update first, let’s hope for the best and we will see the important Windows Server 2016 support update in the coming months.