iPadOS 9.0 (build 13A5344) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2015-09-16T18:02:02Z. The update package is 974.06 MB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1191f544c0e2b21de9a9c8b2ac716705f35024fb.zip.