iOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2020-04-15T17:15:35Z. The update package is 244.91 MB. This is a delta (partial) update that requires 13.4.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 53021a5e1205916fd7008819ea610e4d4c4d3057.zip.