iPadOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-06-19T17:04:23Z. The update package is 1.12 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 051a4e49b549382dca67a297ef068f3f0695d189.zip.