iPadOS 8.1 (build 12B407) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2014-10-07T18:06:03Z. The update package is 25.49 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2c4ca9949ac98547baebfb9a083638bb7e50beef.zip.