iPadOS 9.0 (build 13A4280e) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-06-23T18:30:05Z. The update package is 279.2 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a66acbf5b149a08b4de7b2566796a59a6e55d80b.zip.