iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-05-29T17:17:04Z. The update package is 1.53 GB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4e8bdfb8a98051333a98ce86ba61a864df790026.zip.