iPadOS 11.3 (build 15E5211a) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-03-12T17:05:25Z. The update package is 195.24 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: 52a49baef612bdf00eab3d7520868fa29f463b34.zip.