iPadOS 9.0.1 (build 13A404) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2015-09-23T17:55:20Z. The update package is 42.77 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: 167e479a001e35eb5df2d35fab8ce8ab9e4ff528.zip.