iPadOS 9.9.15.4.1 (build 19E258) is an official Apple over-the-air update for the iPad Air 3 (Cellular), released on 2022-03-31T17:14:15Z. The update package is 4.28 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: bf53e2e9d6a02c3c82bc0511adcbc1d7176ad60f.zip.