iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-03-29T17:08:46Z. The update package is 1.27 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 933b1ee0907921ad60ab69d860fe90cfde013dc4.zip.