iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-05-29T17:16:59Z. The update package is 1.41 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aa8b439b9ce377aa22c5909218c0c8051511141d.zip.