iOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-03-16T17:05:22Z. The update package is 56.47 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: a5ea5f216d78569f0079738ecd6087a196822aa0.zip.