iPadOS 12.0 (build 16A5327f) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-07-17T17:05:53Z. The update package is 400.82 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6af7dd6f34cba4fb4c44a62023c75b2c22431d8e.zip.