Windows 10 version 1601 1602 1603 1604 1605 1606 1607 December 20th, 2015 By J W Stuart Windows 10 free upgrade still has many months remaining, what is not know is what will be the version number of the next major upgrade for Windows 10 users.
It took more than 3 months for version 1511 (Threshold 2 AKA Build 10586) to be released. You can expect at least 2 or possibly 3 more updates before the free upgrade period comes to an end. I would expect that Microsoft would like to get the final major upgrade released about a month before July 29th, which would make it Windows 10 version 1606 or 1607.
Between now and say the early July 2016 upgrade you can expect one or two more upgrades, the question is when. Using the most recent Windows 10 Insider build 11082 released on 12/16/15 which expires on July 15th, 2016 as a starting point I would guess that version 1602 (February of 2016) and version 1605 (May of 2016) will be the next 2 major releases followed by the final free version 1607. Of course Microsoft could skip one and only have two more major releases in which case it’s anyone’s guess when and what the next version will be.