iPadOS 9.9.17.1 (build 21B74) is an official Apple over-the-air update for the iPad Air 4 (WiFi), released on 2023-10-25T17:24:22Z. The update package is 5.37 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: fba10e56cc50a8f0cc5a0a713c0e26f37e8e1ed3.zip.