As Windows 10 is slowly rolling out to registered users, Microsoft can now switch its focus to Windows 10 Mobile. The OS is still under the development and should be released by the end of the year, and today the company has revealed which Lumia phones will first get the new OS.

First ten phones, which are not the only ones, that will get the Windows 10 Mobile are the following:

Lumia 430

Lumia 435

Lumia 532

Lumia 535

Lumia 540

Lumia 640

Lumia 640 XL

Lumia 735

Lumia 830

Lumia 930

Smartphones running Windows Phone 8.1 Update 1 or Update 2 will definitely get the new OS, while other Windows Phone versions are not confirmed to be updated.