Xbox Insider Release Notes

Xbox Insider Release Notes – Omega (2106.210525-0000)

Hey Xbox Insiders! We have a new Xbox Update Preview coming to the Omega ring. It’s important we note that some updates made in these preview OS builds include background improvements that ensure a quality and stable build for Xbox consoles.

We continue to post these release notes, even when the noticeable changes to the UI are minimal, so you’re aware when updates are coming to your device. Details can be found below!

Xbox Insider Release Notes

System Update Details:

  • OS version released: XB_FLT_2106VB\19041.8087.210525-0000
  • Available: 6 p.m. PT – May 27, 2021
  • Mandatory: 3 a.m. PT – May 28, 2021

New Features and Experiences

We have exciting news! Omega users can expect something new coming to their Xbox Update Preview.

Dolby Vision for Gaming

  • Dolby Vision for gaming is releasing today for Xbox Insiders with an Xbox Series X|S console.  Be sure to try out the feature and submit feedback on your experiences with titles!
    • Note: Dolby Vision for gaming will work with Dolby Vision supported TVs. Several major TV brands support Dolby Vision, make sure to check out your display’s documentation. Additionally, look to see if your TV’s firmware is up to date. TV manufactures have added support via firmware updates, which can either be downloaded directly to the TV (If it’s got an internet connection) or enabled by putting the update on a USB drive and plugging it into the TV.

Fixes Implemented

Thanks to the hard work of Xbox engineers, we are happy to announce the following fixes have been implemented for this build:


  • Fixes to address image quality issues watching streaming content in Prime Video with Dolby Vision enabled.


  • Fixed an issue where the “Passthrough” indicator would not appear in the Guide when streaming content in compatible app.


  • Fixed an issue where users could not access TV settings to setup a USB/HDMI TV tuner.


  • Various updates to properly reflect local languages across the console
    • Note: Users participating in Preview may see “odd” text across the console, for more information go here.

Known Issues

We understand some issues have been listed in previous Xbox Insider Release Notes. These items aren’t being ignored, but it will take Xbox engineers more time to find a solution.

We’re still tracking these known issues:


  • Some users are reporting that there is no game audio when launching a Quick Resume title.

Dolby Vision for Gaming

  • Some TVs do not support Dolby Vision at 120 Hz currently and will fall back to either 60 Hz or HDR. We are working closely with TV manufactures to update firmware support for Dolby Vision capabilities. Go to Settings>General>TV & Display Options>4K TV details and look for “Your TV setup supports Dolby Vision”.
  • Users may notice that some titles such as Mass Effect: Legendary Edition might stop supporting Dolby Vision for Gaming after the initial release.  This is expected while the feature is in Preview.
  • Some users have reported Dolby Vision for gaming not performing as expected.
    • Note: If you encounter an issue, please make sure to check the following:
      • Ensure the TV has the latest firmware
      • Use the Xbox-provided HDMI cable that was included with the console
      • Connect the TV directly to the Xbox and try to see if the problem still persists (i.e. remove any AVRs, Soundbars, HDMI boxes, etc.)

Blu-Ray Playback

  • We are tracking an issue with poor playback (lost frames) during the 4K UHD Blu-Ray Theatrical Cut of Donnie Darko.


  • Some users have reported that when returning to a Quick Resume title that their controller is not responding in the game.


  • We are investigating reports of the audio mixer being unable to adjust chat/game audio levels.


  • Users may see that some 4K capabilities are not enabled/available when console is powered on from standby even though they are supported. This can result in HDCP errors trying to play some streaming content in apps.
    • Workaround: Navigate to Settings>General>TV Details and change from 4K to another resolution and then back to 4K.


  • Some users have reported that the icon for a disc-based title is not appearing on the dashboard.

My Games & Apps

  • Titles in collection may incorrectly appear with a “trial” tag.
  • Users have reported that My Games & Apps is closing unexpectedly when trying to view “Shrinkable Games”.

Make sure to use Report a problem to keep us informed of your issue. We may not be able to respond to everyone, but the data we’ll gather is crucial to finding a resolution.

What Happens to Your Feedback

How to Get Xbox Insider Support

If you’re an Xbox Insider looking for support, please reach out to the community subreddit. Official Xbox staff, moderators, and fellow Xbox Insiders are there to help with your concerns.

When posting to the subreddit, please look through most recent posts to see if your issue has already been posted or addressed. We always recommend adding to threads with the same issue before posting a brand new one. This helps us support you the best we can! Don’t forget to use “Report a problem” before posting—the information shared in both places helps us understand your issue better.

Thank you to every Xbox Insider in the subreddit today. We love that it has become such a friendly and community-driven hub of conversation and support.

For more information regarding the Xbox Insider Program follow us on Twitter. Keep an eye on future Xbox Insider Release Notes for more information regarding your Xbox One Update Preview ring!