iPadOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-01-23T18:27:21Z. The update package is 490.13 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bf86bfd57f31ec5b704c4650ac9aa17ee8326291.zip.