The latest software update brings 4K YouTube support to Apple TV.
However, it turned out that users of the public version of tvOS 14 and the beta version of tvOS 14.2 only have access to YouTube videos at 30 frames per second instead of 60. HDR is not currently supported either. This is reported by the Flatpanels HD portal and confirmed by The Verge.
At the same time, the latest iPhone and iPad models reproduce HDR content at 4K / 60 FPS with iOS 14 installed. Why this is not available to Apple TV owners, Google and Apple did not explain.
Perhaps support for 4K / 60 FPS content will appear in future updates or in Apple TV 6, which is already in development. The new set-top box will be available in versions with 64 and 128 GB of internal memory, and will also receive an Apple A12 or A13 chipset and tvOS 14.
Earlier it was reported that the YouTube website has stopped blocking picture-in-picture mode for its videos on devices with iOS 14.