iOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2019-05-10T17:09:53Z. The update package is 50.45 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 31ef2946842b81b9cf1da502d9ec7eb09cc4f7d7.zip.