iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad mini (WiFi), released on 2016-03-31T16:51:18Z. The update package is 895.93 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 07b0422bf2699a27ca80c75fd22ac06eb279029a.zip.