Microsoft last released Windows 10 Mobile Build 10586.71  to Windows Insiders in Fast and then Slow ring we shared our first impressions and hands-on demo of the build on Lumia 950 XL, Lumia 640 XL and Lumia 525. We also reported the rumor that Build 10586.104 may be the next cumulative update Build destined for this week.

But now Build 10586.107 has been seen on BuildFeed and we hear that Microsoft may be rather working to push this build to Insiders this well. This build was compiled on February 5 and testing for this build has been yielding good results so far. So, if everything remains promising it may go out to Insiders on Fast Ring soon.

Microsoft is widely expected to push Windows 10 Mobile update to Windows Phone 8.1 running devices in February and it is getting more interesting to see which Build will make the cut, though Build 10586.71 many be the likely candidate being pushed to Slow ring already. It also seem that Microsoft may still wait for one or two more weeks before pushing Redstone Mobile Build to Insiders with a Lumia 550, Lumia 950 and Lumia 950 XL first.