iPadOS 9.9.13.3.1 (build 17D5044a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2020-01-14T18:20:35Z. The update package is 2.58 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: 5313d9a83ee4e6e2167090be16db80bad5493d01.zip.