iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2016-08-25T16:53:06Z. The update package is 825.74 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: cd5ac623d9dbefbc4619627cf0290d0666b63dc1.zip.