iPadOS 9.9.13.6 (build 17G5045c) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi), released on 2020-06-09T17:28:09Z. 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: b32360b9054be064df86c04065cd40a3f52735fd.zip.