Old Apple TV
Can I download an updated software to the Apple TV model A1427 (3rd generation)?
Apple TV
Question marked as
Best reply
Apple TV (3rd generation) has its own software version. It cannot be updated to the same version as later models have (tvOS 14).
However, its software is still being maintained, and its last versions (7.6.x) were released September 2020 and later.
About Apple TV (2nd and 3rd generation) software updates - Apple Support