iOS 11.4 (build 15F5079a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-05-17T17:02:34Z. The update package is 45.07 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: 862ad47e104b3771998c6951a4e1fae460f578f3.zip.