iPadOS 13.4 (build 17E5241d) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2020-02-26T18:17:25Z. The update package is 733.17 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: 154383ee1ba64a5a89bbba1dae279e2a8373f994.zip.