iOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2023-03-27T17:13:00Z. The update package is 2.54 GB. This is a delta (partial) update that requires 14.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 923c15274808235e7cc0fa346d840cbfb0e2c5bc.zip.