iPadOS 9.0 (build 13A4305g) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2015-07-21T19:26:07Z. The update package is 300.82 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: 6bd6c8e58f37b34eb8a0a2d5cbaaa43f0b0f004c.zip.