iOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-05-28T17:07:37Z. The update package is 256.21 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: b322c84017c9ea2da17fe362291c5ac3763d2e08.zip.