iPadOS 9.9.11.0.2 (build 15A421) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2017-10-03T17:00:18Z. The update package is 1.46 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b75df6f53fbe427a2bc8caf9d199697239b644ee.zip.