iPadOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2015-09-16T18:02:13Z. The update package is 1.07 GB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4cad092c7fbefeac08c167c27ffef206ebdfefb0.zip.