iOS 11.4 (build 15F5037c) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2018-04-02T17:06:50Z. The update package is 327.39 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a16a3f8ef0ce092dddae52961a1db55a25e87e85.zip.