iPadOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2020-04-15T17:15:34Z. The update package is 177.28 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: 9b9e5ce1b503bc9d536858020f6f4b4668f05d3a.zip.