iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-03-29T17:06:11Z. The update package is 672.86 MB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f65118402af1e0956e2a40d24a83589cc0385d3e.zip.