iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-03-28T16:50:08Z. The update package is 754.91 MB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 060c874dc6f730eb31c30719a9c97627543da3d8.zip.