iPadOS 14.8.1 (build 18H107) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2021-10-26T17:00:00Z. The update package is 142.57 MB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b71d67174a67daf2fe209821e11ebe272ddcff67.zip.