iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad 3 (WiFi), released on 2016-03-31T16:51:46Z. The update package is 1006.14 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: abd9eea232d9b955c560b6650816e8d0823a8588.zip.