tvOS 12.0 (build 16J364) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2018-09-12T19:15:38Z. The update package is 1.02 GB. This is a delta (partial) update that requires 10.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e5af4bd43ee4f1b2b3bb38a90b8449db568c062a.zip.