tvOS 11.1 (build 15J5580a) is an official Apple over-the-air update for the Apple TV 4K, released on 2017-10-16T20:03:37Z. The update package is 1.35 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5cee654abd2b41e15dce8219671457aab362ea92.zip.