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 812.06 MB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5739dd0f35791756ec43b2aa1bc09f8af088bdf1.zip.