tvOS 12.4 (build 16M5526d) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2019-05-15T17:19:59Z. The update package is 1.38 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 32e272ecee44a6b7bd9fcc2ad1a918274b5fb951.zip.