Wow! It’s been a whacky week in advance of Turkeyday, with Version 1511 (Build 10586) gone over the weekend, then back again late yesterday. MS even furnished an explanation, which I reproduce from TenForums.com:
Here’s the scoop, straight from TenForums.com
I ran the new update, which is labeled KB3120677, on all of my Win10 machines last night (including both Preview PCs, and my 5 other production machines) without experiencing any difficulties. Here’s what Winver now reports in its wake:
We gain another .03 on the Windows build number, to 10586.14
More importantly, the versions of Windows now available from the Media Creation Tool are now back in synch with most other sources (the TechNet Evaluation Center, MS TechBench, and so forth, though MSDN shows no change on release date info). Looks like what diverged has already reconverged, which should be a great relief to Windows admins everywhere!