Microsoft rolls out Windows 10 Mobile for select smartphones

Microsoft Lumia 950 and Lumia 950 XL were the first devices to feature Windows 10 Mobile
Microsoft has finally announced the official rollout of Windows 10 Mobile to older smartphones running Windows Phone 8.1. The rollout is almost a full year late from its initial announcement.
Microsoft rolled out Windows 10 Mobile with its flagship Lumia 950 and Lumia 950 XL devices. It later announced two more budget devices, Lumia 550 and Lumia 650 running Windows 10 Mobile but kept older Windows Phone us