iPadOS 12.0 (build 16A5366a) is an official Apple over-the-air update for the iPad Air (China), released on 2018-08-31T17:07:12Z. The update package is 1.14 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: 06d32ac6602635b804513d135d41edd6b021ce27.zip.