tvOS 11.2.5 (build 15K552) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2018-01-23T18:10:15Z. The update package is 692.93 MB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f5f1be7249645de452ae89c84541825ea895a525.zip.