iPadOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPad 4 (GSM), released on 2015-09-16T18:02:10Z. The update package is 961.84 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bc8677bb1e822b3d9376ceb46d1876aa5432d4af.zip.