iPadOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPad 3 (WiFi), released on 2015-01-27T17:55:04Z. The update package is 499.43 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 28d135ee4082e031f1764678df526b31c3fff2ed.zip.