Apple today released tvOS 16.3, the third major update to the tvOS 16 operating system since its September release.
The tvOS 16.3 update can be downloaded via the Settings app on the Apple TV by going to “System” -> “Software Update.” If you have automatic software updates turned on your Apple TV will be upgraded to tvOS 16.3 automatically.
The update brings “general performance and stability improvements.” So, there’s that.
Apple’s dedicated tvOS support document is updated after each new iteration of tvOS.