You will soon be able to check if your Lumia can get Windows 10

Microsoft had earlier planned the Windows 10 Mobile upgrade for old Lumia devices in December, though later officially confirmed that the update has been delayed until 'early 2016'. Now it seems that the upgrades are finally ready to hit phones, as the Redmond giant has launched an internal beta for the Windows 10 Mobile Upgrade Advisor app.

With the tool, users can essentially find out whether their old Lumia device is eligible for upgrade to the latest Windows 10. The app is still in its beta phase which means its not yet available for everyone, though it appears it'll be rolling out soon for all users.

To get the Windows 10 Mobile update when it arrives, Windows Phone 8.1 users need to have the Lumia Denim update (version 8.10.14219.341, or higher) to be eligible for the upgrade. In addition, they would require 8GB of internal storage with 1.5 GB of free space.

Meanwhile, other reports suggest that Windows 10 Mobile OTA update has already started rolling out in Poland to a handful of Lumia 640 users on T-Mobile. The upgrade bumps the OS to Build 10.0.10586.29, though Microsoft is yet to officially confirm the update. Regardless, these are signs that Windows 10 Mobile update to old Lumia phones is certainly gaining momentum.

Its also worth pointing out that French carrier Bouygues Telecom has confirmed it'll be pushing the update to select Lumia devices next week, which include the Lumia 635/640/640 XL, Lumia 730/735, Lumia 830, Lumia 930, Lumia 1520, and Lumia 532/535/540/636/638.