When Microsoft said they were pushing build 10586.218 today to all Windows 10 Mobile devices – retail and Release Ring – they weren't kidding.

We can now confirm that the branded AT&T Lumia 950 (non-Insider) sold through stores is also getting build 10586.218 as an official over-the-air update. Jeison S. wrote us to tell us he was getting the update, and we confirmed it on one of our stock Lumia 950's from AT&T as well.

Owners of that phone can head into Settings > Update & security > Phone update and hit Check for updates to begin the process. Otherwise, the update will eventually come through on its own. All the changes are included in the list below for that update.

Windows 10 Mobile Build 10586.218 Changelog

  • Reliability, performance and stability improvements.
  • Support for Visual Voicemail on Dual SIM phones.
  • Improvements for Bluetooth connectivity, including the reliability of connecting to and staying connected with Bluetooth devices.
  • Fix for a problem that caused audio playback to get occasionally interrupted in Groove Music and other music apps when phone display was turned off.
  • Improvements for Microsoft Edge browser, including support for configuring a prompt before a file download occurs, support for background downloads, and a fix for a problem where opening a link from an another app wouldn't load the web page.
  • Reliability improvements for Cortana reading text messages aloud and usability improvements for Quiet Hours feature.
  • Improvements for Store reliability, including a fix for a problem that prevented some apps from being updated and installed.
  • Fix for a problem that occasionally caused some apps to show blank tiles after upgrading from Windows Phone 8.1.
  • Improvements for PC connectivity via USB on some phones that were upgraded from Windows Phone 8.1..

At this time, it is safe to say that if you have a phone with Windows 10 Mobile on it in some official capacity e.g. upgraded from 8.1, bought the phone with the OS installed, etc. you have a very good chance of getting today's update without needing to be an Insider.