iPadOS 9.9.15.1 (build 19B74) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2021-10-25T17:10:12Z. The update package is 3.76 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: f33a8cff4b77e4472e8baad9d5fdaa4f6602f3ed.zip.