tvOS 11.2 (build 15K5090c) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2017-11-07T18:03:17Z. The update package is 66.78 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 644e36262dafd72d70328547944fc95e3bc394ee.zip.