iPadOS 9.9.13.4 (build 17E5255a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2020-03-10T17:21:03Z. The update package is 2.8 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: 4b28eee7ff9532f7a25fb783ac5516d74b2c3b7f.zip.