iOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2019-05-07T17:04:31Z. The update package is 455.32 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d20d98b35cb4c1efd2f89e7f3174abd1ec6f8cbd.zip.