iPadOS 9.9.15.5 (build 19F77) is an official Apple over-the-air update for the iPad Air 4 (WiFi), released on 2022-05-16T18:24:15Z. The update package is 4.19 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: 82d169d96eb319d84e6e3fdfc2fce37708dbd2f9.zip.