iOS 13.4.5 (build 17F5034c) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2020-03-31T17:20:19Z. The update package is 405.29 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: aaf98d783398d6881e4058a84b929c767729b00c.zip.