iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-05-29T17:17:09Z. The update package is 1.37 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 527de381c44df619ad80f197c881a44c1da83276.zip.