iPadOS 9.0.1 (build 13A404) is an official Apple over-the-air update for the iPad Air (China), released on 2015-09-23T17:55:19Z. The update package is 1.17 GB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: db60f4e16684c8f2ca8135a4b7b5c5e3d93445b2.zip.