iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-03-16T17:05:04Z. The update package is 51.63 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9b483b5b714cfbd3fccc98617c5b9b7cbb1520ec.zip.