iOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPhone XR, released on 2020-03-10T17:21:28Z. The update package is 110.95 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: 28e7f06d31dd7590ed9d58197b4a6ca1df6ec6b0.zip.