Software, not silicon, draws the new line for Apple TV. With tvOS 27, Apple ends compatibility for Apple TV HD and the first Apple TV 4K, even though both still run tvOS 26. Only Apple TV 4K from the second hardware revision onward appears on the new support list in Apple documentation.
This cut is less about raw performance and more about platform focus, as the update leans into interface polish rather than headline features. tvOS 27 brings a redesigned Podcasts app, tuned for large-screen browsing. It emphasizes clearer navigation, richer show artwork, and improved playback behavior across episodes and subscriptions on the living room display.
The system itself shifts subtly. App launches and interface animations gain smoother frame pacing, while support for larger text extends accessibility options across menus and tiles. Owners of the dropped models stay on tvOS 26, keeping current apps but losing these refinements, a quiet split that turns routine updates into a soft retirement notice for aging hardware.