MacRumors published a story that Apple has released tvOS 15.1.1 for Apple TV HD and Apple TV 4K.
Apple Releases tvOS 15.1.1 for Apple TV HD and Apple TV 4K
Apple today released tvOS 15.1.1, a minor update to the tvOS operating system that first launched in September 2021.
Apple Releases tvOS 15.1.1 for Apple TV HD and Apple TV 4K