iOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone X (GSM), released on 2020-04-15T17:15:41Z. The update package is 377.06 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: fff9a433a5327fa9874060bfafd22862bcdb63d4.zip.