Xbox Insider Release Notes

Xbox Insider Release Notes – Alpha Skip-Ahead (2108.210507-2200)

Hey Xbox Insiders! We have a new Xbox Update Preview coming to the Alpha Skip-Ahead 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_2108CO\21378.1504.210507-2200
  • Available: 2 p.m. PT – May 10, 2021
  • Mandatory: 3 a.m. PT – May 11, 2021

We have exciting news! Alpha Skip-Ahead 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.

Store Publisher Pages

  • To keep making the Store better and easier, Xbox Insiders will see a new set of Publisher Pages designed to create a space within the Store for our publishers to showcase their games, latest updates, and engage with their fans. It combines brand new page designs with existing elements to bring a new way for Publishers to engage with their customers using their own unique voice.

Fixes Implemented

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

Game DVR

  • Fixes to address poor quality when recording game clips on console.


  • Fixed an issue where notifications for friends appearing online would not display correctly in the Guide.


  • 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:


  • We’ve received reports that the Hulu app is crashing during playback.


  • Some users have reported that they are not hearing any audio with Dolby Atmos enabled.

Blu-Ray Playback

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

Edge (New)

  • Console browser links will not work if a user chooses the “new” browser version when prompted.
    • Workaround: Be sure to choose the “previous” version of Edge to ensure the page opens.


  • Some users are reporting that their mouse isn’t working correctly in Minecraft.
  • We’ve received reports that controller input is not working when a game is launched.
    • Workaround: Reboot the console and relaunch the game.


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


  • We’ve received some reports that HDMI-CEC is not working correctly.
    • Note: Ensure that your TV supports HDMI-CEC and is also enabled before filing feedback.


  • 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.


  • Live TV listings for OneGuide on Xbox One have been discontinued. You can continue to use OneGuide to view your connected HDMI devices or USB TV tuner.

Profile Color

  • Sometimes users may encounter the incorrect Profile color when powering on the console.

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!