iPadOS 11.3 (build 15E5211a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-03-12T17:05:27Z. The update package is 219.21 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: c5ce164b93c32f411156379a462920790622bef0.zip.