iPadOS 9.9.17.0 (build 21A329) is an official Apple over-the-air update for the iPad Pro 4 (12.9-inch, WiFi), released on 2023-09-18T17:34:19Z. The update package is 5.69 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: 28b0452fc6502862203c9f0272768c2d1510a3c5.zip.