iOS 13.0 (build 17A5522g) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-07-08T20:10:44Z. The update package is 1.01 GB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d6f95559af06385a23f4a889d5ca705fc1bcb5ca.zip.