iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-09-12T19:06:19Z. The update package is 1.24 GB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7e64fb78ee9d01a5e175ba98141582201fec7476.zip.