iPadOS 9.9.14.8.1 (build 18H107) is an official Apple over-the-air update for the iPad Air 4 (Cellular), released on 2021-10-26T17:00:00Z. The update package is 3.7 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: 154efd8b093c1a307f0080224a5187fe73e523a5.zip.