iPadOS 9.9.15.3 (build 19D6050) is an official Apple over-the-air update for the iPad Air 4 (WiFi), released on 2022-01-26T18:14:07Z. The update package is 4.18 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: d72009cadf6998abf12211bd44588aae701c0d3d.zip.