iPadOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-01-23T18:27:20Z. The update package is 538.28 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f602fa7389cee9281e817efad4099eaa37b51640.zip.