iOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone XR, released on 2020-04-15T17:15:44Z. The update package is 179.65 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: c9e149a9d3bd2caf6691557d87fa504a55957341.zip.