So we will not see Windows 10 upgrade this month. Previously, Microsoft said Windows 8.1 mobile will receive upgrade to windows 10 by the end of this year. However, it is not confirmed that it will not happen until early 2016.
“The Windows 10 Mobile upgrade will begin rolling out early next year to select existing Windows 8 and 8.1 phones,” a Microsoft spokesperson recently told the media.
So far, the following devices will receive Windows 10 bump:
Lumia 430, Lumia 435, Lumia 532, Lumia 535, Lumia 540, Lumia 635 (1GB RAM), Lumia 640, Lumia 640 XL, Lumia 735, Lumia 830, and Lumia 930.