iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad mini (WiFi), released on 2016-03-31T16:51:20Z. The update package is 825.68 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4b7d90df7af8f0d12b64a1205491892b8f54b2fc.zip.