iPadOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2015-09-16T18:02:07Z. The update package is 817.86 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 21eab0674d617519ce5c9f0e8315b9b7aaddee91.zip.