Microsoft has been busy working on releasing new preview builds for Windows 10 and Windows 10 Mobile for Insiders on Fast Ring and also users on Release Preview Redstone 2. The company is currently internally testing a new Cumulative update for its Threshold Branch for Windows 10 and Windows 10 Mobile.
The new Cumulative Update has been compiled on Thursday Feb 09th with version 10586.800. Currently we don’t now as to what the Cumulative Update contains for Windows 10 and Windows 10 Mobile on the Threshold Branch.
10.0.10586.800 (th2_release.170209-1902) https://t.co/4OxyHmhMjB #Threshold2 #windows pic.twitter.com/nmFUj6i5kg
— BuildFeed (@buildfeed) February 11, 2017
Generally the company releases bug fixes and performance improvements for the OS with the Cumulative Updates. The last Cumulative Update released to the Threshold Branch was nearly 2 months ago with version 10586.682. Considering the previous version which is at 10586.682, the company seems to be planning to release number of bug fixes for the  Threshold Branch.
There has been no confirmation from the Redmond Giant as to when the new Cumulative update will be released since its been under testing internally last couple of days. If the company does not find any issues with the Latest Cumulative Update internally, then we could see the update releasing to the users on Threshold branch sooner than later.
We will however keep our users posted, as and when we have any info on the release date of the New Cumulative Update for the Threshold Branch.