iPadOS 9.9.17.4 (build 21E219) is an official Apple over-the-air update for the iPad Pro (12.9-inch, Cellular) (6th generation), released on 2024-03-05T18:17:09Z. The update package is 5.64 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: 1b8d2c0abfa464d5262842045e7b93d1b9e4b64d.zip.