iPadOS 12.0 (build 16A5366a) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-08-31T17:07:20Z. The update package is 1.17 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: 59c1e8c34a2c150c877983fec82feb69d8863d25.zip.