iOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2020-03-10T17:21:20Z. The update package is 102.97 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0349069453f9006770e3c13335b0867ec34cbc7f.zip.