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 1.08 GB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c888786346518e46acbfe2416510235d8af62834.zip.