iPadOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2015-09-16T18:02:06Z. The update package is 740.72 MB. 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: a65023a5fe81a133f19ffe88d3f45d914a76c27d.zip.