Also, to releasing Windows 10 Mobile build 10586.122 to Insiders on the Slow and Release Rings the company is also expanding devices that can participate in the Insider program.

In a blog post for today's update Microsoft's Gabriel Aul noted the devices that can now jump in on the Release and Slow Rings:

New Insider Phones

  • MCJ Madosma Q501
  • BLU Win HD W510U
  • BLU Win HD LTE X150Q

Starting earlier this year, the Fast Ring has been reserved for Lumia devices that have shipped with Windows 10 Mobile including the Lumia 550, Lumia 650, Lumia 950 and Lumia 950 XL. As of now, only those phones can leap into the Redstone (RS1) releases that promise some advanced features, but also more instability. Later, as Redstone matures, Microsoft will open the release to other devices.

Windows 10 Mobile build 10586.122 will likely head to non-Insider phones in the coming weeks.

Are you on any of the phones listed above? Let us know if you'll enrolling in the Insider program.

Source: Microsoft