iOS 13.4 (build 17E5223h) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2020-02-05T18:17:32Z. The update package is 830.05 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: 4996587c002470a9a1425605c8faa75c6414a09c.zip.