tvOS 12.2 (build 16L226) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2019-03-25T19:15:18Z. The update package is 817.15 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b074256a08c3260be307e9e19ea7576e71e9aa13.zip.