iPadOS 12.0 (build 16A5327f) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-07-17T17:05:51Z. The update package is 1.13 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: 218889bae2bb42732c95e8ec97e34737721f8940.zip.