Microsoft is working very hard in trying to improve the OS for Windows 10. Just recently we confirmed that the company is internally testing a new Cumulative Update for RS1 for Windows 10 and Windows 10 Mobile.
Now there are new reports leaked online that the company is also testing a new Cumulative Update for its Threshold Branch with version 10586.596 which has been compiled on 16th Sept. The last released Cumulative update for the Threshold branch was .545 which brought some under the hood fixes for the OS.
Currently we are not sure as to what the company will be releasing with the New Cumulative Update for Threshold Branch in terms of fixes or features.
— BuildFeed (@buildfeed) September 23, 2016
We will update this article once we get our hands on the Changelog. The company might release the new Threshold Cumulative Update in the coming weeks if no issues or bugs are found during internal testing.