iPadOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-03-21T18:55:30Z. The update package is 825.6 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: d88f757711d85b067da7da80a74d36e5bd44c3ce.zip.