iOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPhone XR, released on 2020-03-10T17:21:27Z. The update package is 898.09 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e2fe1c3477299586d7e60fa6e8db86bc4326bc00.zip.