Microsoft has alleged to update all its compatible Lumia smartphones to Windows 10 Mobile, but aside the company has not told about the new firmware release date yet so it has remained as a mystery.
However, mobile carriers around the world have started up to announce the upcoming release dates. Vodafone Italy, a mobile carrier hinted the release date for their Lumia series variants that are receiving the Window 10 Mobile update. The carrier posted the list of Lumia smartphones on their twitter account that are receiving the update from Windows Phone 8.1 to Window 10 Mobile. The list includes the Lumia 535, Lumia 635, Lumia 735, Lumia 830, Lumia 930 and as well the Lumia 1520.
Vodafone said the Windows 10 Mobile OTA firmware will be available from the week of March 7. Therefore, we are hopeful to see those updates soon if the details provided by Vodafone Italy comes true.
In addition, Microsoft had said earlier that Lumia 640 and 640 XL (not listed in Vodafone post) would also get Windows 10 Mobile OTA update. Meanwhile, Microsoft has not informed officially about the OTA firmware update and continues to keep silence about the subject.
Windows 10 Mobile released on November 20th 2015, is the upgraded operating system after Windows Phone 8.1. The Windows 10 Mobile OS is purely designed for smartphones and phablets and was enrolled in public beta testing back in February 2015.