iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad mini (GSM), released on 2016-03-31T16:51:23Z. The update package is 912.66 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d6b6065549504b9b32ec8ebf461f82951989178a.zip.