iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad 3 (CDMA), released on 2016-03-31T16:51:53Z. The update package is 1009.98 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 05bea2e3ee9def806f0b5ad220292e7f3ffeefaa.zip.