iPadOS 11.3 (build 15E5201e) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-03-05T18:13:53Z. The update package is 282.56 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: bb5b017de1384987aad1c7f91829b0875f0bcc54.zip.