iOS 13.1 (build 17A5844a) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2019-09-18T17:06:51Z. The update package is 249.05 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 02ec8797f7b9b04dd8141cfc9d5c2e82d828eca0.zip.