iPadOS 9.9.13.3.1 (build 17D6050) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2020-01-28T18:27:09Z. 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: 9aa12094d238848ef2a3f5b2cbbc1ee5ac6aff02.zip.