iOS 11.4 (build 15F5079a) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-05-17T17:02:37Z. The update package is 313.45 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: 5ce38f1a017a4f59148527b473f7468407f0eb46.zip.