Microsoft has started rolling out its February update of Windows 10 mobile phone to non-Windows Insiders. The version of the update is 10586.107, and is currently rolling out to Lumia 950, 950 XL, and 550.It include fixes for several issues including coming with the reliability, stability and better connectivity of the Phone. It has mainly fixed three problems.

New Window 10 build is finally rolling out to Lumia 950/950XL along with Lumia 550

• Fix for a problem causing erroneous low storage prompts for some users when trying to download phone software updates.
• Fix for a problem that caused erroneous prompts of Outlook account settings being out-of-date for some users, although account settings had not been changed.
• Fix for a problem that caused some phones to get stuck on BitLocker Recovery screen after a reset.

If you still have not received the OTA notification, you can go to settings and check it manually Settings -> Update & security -> Phone update -> Check for updates on your handset.