iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-09-12T19:05:49Z. The update package is 1.18 GB. This is a delta (partial) update that requires 11.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 80ad8951d46c6ae3b482583941f30b67fd53b162.zip.