iPadOS 11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-04-16T17:07:27Z. The update package is 182.89 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 05cbe232383bdae73cc9fc1e7a1b81fe991f701e.zip.