iPadOS 12.0 (build 16A5365b) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-08-27T17:02:22Z. The update package is 54.8 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: 3c679210eb5a251326da32b79e1694c1ff29460c.zip.