iOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-05-28T17:07:38Z. The update package is 226.55 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c319e48035caadd6ff77d1988c2d839a1e830fcd.zip.