We're a little confused by information in the release notes on supported Mac operating systems:Anyconnect 4.0.00048:Mac OS X 10.7, 10.8 & 10.9 x86(32-bit) and x64(64-bit)Anyconnect 3.1.05187:AnyConnect 3.1.05187 also adds support for Mac OS X 10.10. ...