tvOS 12.4 (build 16M568) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2019-07-22T19:22:54Z. The update package is 1.18 GB. This is a delta (partial) update that requires 9.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: de7bf71c6adee6f2b196a7c78d43edaed54be30b.zip.