iPadOS 12.0.1 (build 16A404) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-10-08T17:07:45Z. The update package is 1.22 GB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: db1f461638074cbaa79c330e7eeb155315c6e14e.zip.