iPadOS 9.0 (build 13A4305g) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2015-07-21T19:26:09Z. The update package is 310.32 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: 9f818b4614627225fbf0a7e9c9e1483f36d78f1a.zip.