iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-03-29T17:06:29Z. The update package is 1.24 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8f8934d5c8a85b927e92ded4dbbcf0bd2be09490.zip.