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 1.42 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 98c63ba84e862901b7d1393be9db9b6d5f75228e.zip.