iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-10-30T17:05:11Z. The update package is 1.22 GB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ef2ba7b52dac263ad4174f65d0bf2486997912b3.zip.