iPadOS 9.9.11.2.1 (build 15C153) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2017-12-13T18:07:06Z. The update package is 1.34 GB. This is a delta (partial) update that requires 9.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 68a1d8e02720c82536784aa9be0faa3b222e00c9.zip.