iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-07-09T17:07:00Z. The update package is 220.33 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: 538d35476f7ca999e18ce9b1f4a9d717ba35ef8e.zip.