The feature has been in testing since May.
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Dolby Vision is a set of technologies that enables high dynamic range (HDR) video.
It actively adjusts how color, contrast, and brightness is represented on screen for the best picture possible.

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Players are urged to enable it by going to Video Modes in the same menu.
The post mentions downloading the latest firmware on the Dolby Vision supported TV and recommends using ALLM while playing.
Only10 games and their different versionswill support Dolby Vision at launch.
More games will be added to the list in the future.
Microsoft plans on having more than 100 titles optimized for Dolby Vision, like the upcomingHalo Infinite.