iOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone 11, released on 2020-04-15T17:15:45Z. The update package is 181.12 MB. This is a delta (partial) update that requires 13.4.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 58fa07b560f7addd37eee34de1e7b46a6c6aa4d2.zip.