iPadOS 9.0.1 (build 13A404) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2015-09-23T17:55:21Z. The update package is 42.94 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 204df447dba2c50ea5937769f9cf351f3092ea5b.zip.