iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-03-28T16:50:10Z. The update package is 187.57 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 00b9d36243b46ee7eff15bc7360919310374e038.zip.