iPadOS 9.3 (build 13E5225a) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-03-01T18:13:00Z. The update package is 95.8 MB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f22d523ef88d408cd5b1d0efbe2ee55f1c916e8e.zip.