Microsoft announce that it is now beginning the roll-out of Windows 10 Mobile to select Windows Phone 8.1 devices.

The list of supported devices for this include: Lumia 1520, 930, 640, 640XL, 730, 735, 830, 532, 535, 540, 635 1GB, 636 1GB, 638 1GB, 430, 435, BLU Win HD w510u, BLU Win HD LTE x150q, and MCJ Madosma Q501.

This list could grow in time.

“This list includes a limited set of Windows Phone 8.1 devices and does not include some devices that are currently running Windows 10 Mobile in the Windows 10 Mobile Insider program,” notes Microsoft’s Micahel Fortin. “As Windows 10 delivers significant new innovations, many older devices are not able to successfully upgrade without an impact on the customer experience. Our goal is to only offer the Windows 10 upgrade to devices that we are confident can continue to deliver a good customer experience.”

“Consistent with our approach to the Windows 10 PC upgrade, we are focused on delivering a high quality experience for our customers,” he says. “The Windows 10 Upgrade Advisor app can be downloaded from the Windows Store to see if the upgrade is available for your device.”

Microsoft provides an Upgrade Advisor app for upgrading here.

Twitter announced the launch of a new Windows 10 for Mobile app on Wednesday.

Image via Microsoft