iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-05-29T17:16:58Z. The update package is 1.41 GB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c8411084e7a80ff54aa580a5ce571c76098ef91f.zip.