iPadOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2015-01-27T17:55:03Z. The update package is 227.13 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: 2e611f269281a56362cc71de0ccdb43a32ba45e5.zip.