iPadOS 9.1 (build 13B5119e) is an official Apple over-the-air update for the iPad 3 (WiFi), released on 2015-09-23T17:55:03Z. The update package is 137.5 MB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c16f310fbb6a6edaa5653757c05187470aed093c.zip.