iOS 13.4 (build 17E5249a) is an official Apple over-the-air update for the iPhone 11, released on 2020-03-03T18:20:14Z. The update package is 899.53 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: 17857bd5d683b8481d5017a56b7c183beae234f4.zip.