iPadOS 12.1 (build 16B5089b) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2018-10-22T17:01:25Z. The update package is 130.55 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1a23d9bbee27d8822d540508e14bc8377b8b6242.zip.