tvOS 12.1.1 (build 16K5044a) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2018-11-15T18:08:10Z. The update package is 1.37 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: 1cedd7962fa8366a9c35e8a1a9ea9675111df1b5.zip.