iPadOS 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 156.69 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: a378bdca889cf1390e1b7d4289efd5655cfdb778.zip.