iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2018-05-29T17:15:46Z. The update package is 867.95 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2e52e389c838bc960f3cbd87d8f0fc643bf82c62.zip.