iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-05-29T17:17:02Z. The update package is 740.35 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9661007a5a6c6c51ed16a2deb031ae11738f02b3.zip.