tvOS 12.2 (build 16L226) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2019-03-25T19:15:23Z. The update package is 305.63 MB. This is a delta (partial) update that requires 12.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a88ba9537a257a0ccfb2e6d3e4b8f665c4e5b91b.zip.