iPadOS 12.0.1 (build 16A404) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-10-08T17:07:48Z. The update package is 71.01 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 81686e81f1e0c0ee9c0d291f77b52f898f71153e.zip.