iPadOS 11.2 (build 15C5107a) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2017-11-13T18:03:17Z. The update package is 129.32 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c65dfbb7d003888c360c3f9ee22bd951db7c720c.zip.