Microsoft has rolled out a new Windows 10 Build for those in Xbox One Alpha Ring. The Build version is 2002.191208-2000 and it will begin rolling out at 2:00 p.m. PST and will become mandatory shortly after that.

Coming to what this build brings, we can see a list of fixes and known issues in the changelog shared officially.

System Update Details:

  • OS version released: 19H1_RELEASE_XBOX_DEV_2002\18363.9069.191208-2000
  • Available: 2:00 p.m. PT – December 11, 2019
  • Mandatory: 3:00 a.m. PT – December 12, 2019

Fixes for Alpha

We’ve heard your feedback, and we’re happy to announce the following fixes have been implemented for this 2002 build:

Party Chat

  • Users should no longer have issues with party chat when playing backwards compatible titles.

Rock Band 4

  • Users should no longer see excessive loading times when attempting to play this title.


  • Updates to properly reflect local languages on the console.

Xbox Insider Release Notes

Known Issues for Alpha

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


  • Users who have Dolby Atmos enabled and console display settings set to 120hz with 36 bits per pixel (12-bit) are experiencing loss of Dolby Atmos audio in some situations.
    • Workaround: Disable 120hz or set Video Fidelity to 30 bits per pixel (10-bit) or lower.


  • Users are unable to send a voice message while in Parties.
    • Workaround: Send the message while not currently in party chat.

Profile Color

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