iOS 13.4.5 (build 17F5034c) is an official Apple over-the-air update for the iPhone 11, released on 2020-03-31T17:20:23Z. The update package is 370.23 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: 39477aaffd84586d50b537a5ed8c6a63faa5891c.zip.