When will Windows 10 for Mobile release?
Which Windows Phone devices are eligible to upgrade?
Lumia 430, Lumia 435, Lumia 532, Lumia 535, Lumia 540, Lumia 640, Lumia 640 XL, Lumia 735, Lumia 830, and Lumia 930
Lumia 635, Lumia 735, Lumia 830, Nokia Lumia 735, Lumia 830, Microsoft Lumia 535, Microsoft Lumia 435, Microsoft Lumia 640, Microsoft lumia 640 XL LTE, and Nokia Lumia 635
Microsoft Lumia 640 XL (AT&T), Microsoft Lumia 640 (AT&T - Black - No Contract), Microsoft Lumia 735 (Verizon), Lumia 635 (Black - Unlocked), and Lumia 635 (Sprint)
