iPadOS 9.9.13.0 (build 17A5556d) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi), released on 2019-08-07T17:04:43Z. The update package is 3.26 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 350b2bddfe9a6e41223e585fdb6cf649e60de081.zip.