iOS 13.4 (build 17E5241d) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2020-02-26T18:17:54Z. The update package is 902.6 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: 57b05a50cc64c509e77de5f00370f2edb138941d.zip.