iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad Air (China), released on 2018-09-12T19:05:15Z. The update package is 1.15 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: 0c9cc45c6bc48795eabb984a4b4a44c26ced73fe.zip.