iOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2023-03-27T17:13:10Z. The update package is 742.29 MB. This is a delta (partial) update that requires 15.7 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3d93864e0db60c2a17319280232471781b7288ce.zip.