iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad mini (GSM), released on 2016-03-31T16:51:34Z. The update package is 211.18 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5286ff087cc87c9dfabfbbebeff284a07758729e.zip.