iPadOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2019-05-07T17:03:44Z. The update package is 62.02 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: 27a69c4c2b525b3b893eeff35b5e0049cf25fb22.zip.