iPadOS 9.1 (build 13B5130b) is an official Apple over-the-air update for the iPad 2 (GSM), released on 2015-09-30T17:58:02Z. The update package is 980.44 MB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7cc9bbb35579b0b3442430aefd2bffce33b60bf8.zip.