Apple TV YouTube App Rolling Out 4K Support

One of the new tvOS 14 features highlighted by Apple was support for watching 4K videos in the YouTube app, but when ‌tvOS 14‌ launched, Apple TV 4K users quickly noticed that support wasn't available.
That appears to be changing, as there are reports on Reddit (via FlatpanelsHD) that support for 4K YouTube videos is starting to roll out. Multiple users have reported seeing 4K playback options in the YouTube app on ‌tvOS 14‌, tvOS 14.0.1, and tvOS 14.2.4K support has not yet