iPadOS 9.9.13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-09-10T20:20:11Z. The update package is 3.1 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: bf5b968369a4fc711fe37d85f49eae47c5475203.zip.