iPadOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2016-03-21T18:56:02Z. The update package is 441.11 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 712e27e3d35d4b9601271f3c645236212d790914.zip.