iPadOS 13.4 (build 17E5233g) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2020-02-19T18:24:41Z. The update package is 849.02 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: 49de091294ec73fb0010633548f262b3d37693dd.zip.