Microsoft today released an update for Windows Device Recovery Tool. This is a minor update v3.1.5 with few improvements.
The update brings support for the Lumia 950 and Lumia 950 XL, and interestingly also has new firmware (01078.00017.15447.44015) for the Lumia 950 XL available, which may perform better than what it is currently shipping with.
The update now allows the Lumia 950 and 950 XL to take part in the Insider program, as users will be able to roll back to a more stable version of the Windows 10 Mobile OS if something goes wrong.
The updated app can be downloaded from here.