iPadOS 9.0 (build 13A4325c) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-08-06T18:44:15Z. The update package is 395.07 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: 6b17c7aa267cfd09902ed58579b29cf8489e5bc0.zip.