tvOS 11.4.1 (build 15M5054b) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2018-05-31T17:04:01Z. The update package is 51.76 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8e6fafc759b3154d055c202f68704d718f145d62.zip.