iOS 13.0 (build 17A5508m) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2019-06-17T17:04:24Z. The update package is 2.12 GB. 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: d39b48f1be084372c7dc20d341a466e0629a86bd.zip.