iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2018-03-16T17:05:01Z. The update package is 50.15 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 887dd55d1416d3a89f1544efcfe48055c5996f37.zip.