iPadOS 13.4 (build 17E5223h) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2020-02-05T18:17:21Z. The update package is 781.88 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: 396cf545c8b1f0a2dbc6e767e11a5aa21f51b81c.zip.