Nokia-Lumia 1520. Image Credit: TheInquirer
Nokia-Lumia 1520. Image Credit: TheInquirer

Windows 10 Mobile, the mobile version of Microsoft‘s newest operating system, is beginning to roll out to more than a dozen handsets. Though the update will likely come as welcome news to those who may still have a device running Windows Phone 8.1, there is a catch: not all older Windows Phone devices are supported.

“Consistent with our approach to the Windows 10 PC upgrade, we are focused on delivering a high quality experience for our customers.” Michael Fortin, CVP Windows and Devices Group Core Quality writes in Microsoft Blog.

Full list of devices that are supported for the upgrade: Lumia 1520, 930, 640, 640XL, 730, 735, 830, 532, 535, 540, 635 (1GB RAM), 636 (1GB RAM), 638 (1GB RAM), 430, 435, BLU Win HD w510u, BLU Win HD LTE x150q and MCJ Madosma Q501. Microsoft also has a new Update Advisor app that is available for downloaded from the Windows Store to see if the upgrade is available for your device.

The 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.

According to Mashable, It’s not clear if Microsoft plans to make the update available to more devices, though the company notes that some devices won’t ever be eligible for the update.

“As Windows 10 delivers significant new innovations, many older devices are not able to successfully upgrade without an impact on the customer experience,” Microsoft says.

“Our goal is to only offer the Windows 10 upgrade to devices that we are confident can continue to deliver a good customer experience.”