iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-10-30T17:05:19Z. The update package is 330.98 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b486fd45cc79ee9c111cbf0139032c9655014c5.zip.