System 4.0.0.0 System.Delegate System.Collections.Generic.IEnumerable<System.String> The SSL/TLS protocol version used for the connection. The ordered list of all supported cipher suites. You can provide your own code to filter/re-order the cipher suites to be used for client and/or server side SSL/TLS support. The ordered list of all cipher suites you wish to support. This type is only available in Mono and Xamarin products. See the property for examples of how this is used.