iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2016-03-28T16:49:45Z. The update package is 821 MB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fbc79bad7502db68a3c242dbe32b7b849c2958f4.zip.