iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-07-09T17:07:30Z. The update package is 244.15 MB. This is a delta (partial) update that requires 11.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4d881c54e8e62f2e2fcc91ca6fc59f0b422701a2.zip.