iOS 12.4 (build 16G5056d) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-06-24T17:17:21Z. The update package is 365.74 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: 45d58876c192589b3a18a7792441baf9ec1d8cab.zip.