iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad 2 (CDMA), released on 2016-08-25T16:53:08Z. The update package is 786.62 MB. This is a delta (partial) update that requires 8.2 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 36fb63140caddc40ee2d793a50f4770ee91b91d1.zip.