iPadOS 9.9.13.1 (build 17A5821e) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2019-08-27T17:28:11Z. The update package is 2.53 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: c3f1a0b2cab2a5eddf170cb738ab4b1ee3f6a197.zip.