iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2016-03-31T16:53:34Z. The update package is 1.08 GB. 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: 27761a3ef05886796ae9aa44ed57170e7dd15bcc.zip.