iPadOS 12.3 (build 16F5148a) is an official Apple over-the-air update for the iPad Air (China), released on 2019-04-29T17:35:24Z. The update package is 86.15 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8514d6c581754ee0115e84709af15c23e468b4e2.zip.