iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2018-05-29T17:15:47Z. The update package is 814.22 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fb2bbab2f8d87fef256d6d302b7cdfc1ca283524.zip.