iPadOS 12.0 (build 16A5318d) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-07-03T17:05:12Z. The update package is 1.09 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: 3788489e99bc6ca27096c4469a3ec25f24ed3538.zip.