iPadOS 9.9.11.3 (build 15E5167f) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-01-24T18:06:49Z. The update package is 1.75 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: f3b448f35c22cdb4476f78e904bcb7b8c38b8611.zip.