tvOS 11.1 (build 15J582) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2017-10-31T17:02:13Z. The update package is 947.55 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 342ed53bb614f0eb525d7dbc93590ce0a47a3382.zip.