iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2015-04-08T17:56:05Z. The update package is 787.6 MB. This is a delta (partial) update that requires 7.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a083c011d56b4ba3eb001dd37e869aa50ad5a198.zip.