iPadOS 9.9.13.5.1 (build 17F80) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2020-06-01T17:10:56Z. The update package is 2.82 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: ae521dc53ff99c143042e51184b110830eda55ff.zip.