iPadOS 9.9.15.4.1 (build 19E258) is an official Apple over-the-air update for the iPad Air 5 (Cellular), released on 2022-03-31T17:14:15Z. The update package is 4.27 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: a037c2b52a46e5937412951611f8a6e79675461d.zip.