iPadOS 9.9.17.3.1 (build 21D61) is an official Apple over-the-air update for the iPad Air 4 (WiFi), released on 2024-02-08T18:31:39Z. The update package is 5.35 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: 0a82c0f4d1abc29f7a79ca943d840b19eee24986.zip.