* Fix that XML-RPC date/time values did not have well-defined behaviour (#2516, #2534). This fix has one caveat, in that we can't support pre-1970 dates from XML-RPC clients.
* Added ActionWebService::API::Base.soap_client and ActionWebService::API::Base.xmlrpc_client helper methods to create the internal clients for an API, useful for testing from ./script/console
* Fix WSDL generation by aliasing #inherited instead of trying to overwrite it, or the WSDL action may end up not being defined in the controller
* Add ActionController::Base.wsdl_namespace option, to allow overriding of the namespace used in generated WSDL and SOAP messages. This is equivalent to the [WebService(Namespace = "Value")] attribute in .NET.
* Allow invocation filters in :direct controllers as well, as they have access to more information regarding the web service request than ActionPack filters
* Use UTF-8 encoding by default for SOAP responses, but if an encoding is supplied by caller, use that for the response #1211 [Shugo Maeda, NAKAMURA Hiroshi]
* ActionWebService::API::Base#api_methods now returns a hash containing ActionWebService::API::Method objects instead of hashes. However, ActionWebService::API::Method defines a #[]() backwards compatibility method so any existing code utilizing this will still work.
* Perform casting of struct members even if the structure is already of the correct type, so that the type we specify for the struct member is always the type of the value seen by the API implementation
* Allow method declarations for direct dispatching to declare parameters as well. We treat an arity of < 0 or > 0 as an indication that we should send through parameters. Closes #939.
* Add <tt>ActionWebService::API::Base.allow_active_record_expects</tt> option, with a default of false. Setting this to true will allow specifying ActiveRecord::Base model classes in <tt>:expects</tt>. API writers should take care to validate the received ActiveRecord model objects when turning it on, and/or have an authentication mechanism in place to reduce the security risk.
* Improve error message reporting. Bugs in either AWS or the web service itself will send back a protocol-specific error report message if possible, otherwise, provide as much detail as possible.
* Removed type checking of received parameters, and perform casting for XML-RPC if possible, but fallback to the received parameters if casting fails, closes #677
* Refactored SOAP and XML-RPC marshaling and encoding into a small library devoted exclusively to protocol specifics, also cleaned up the SOAP marshaling approach, so that array and custom type marshaling should be a bit faster.
* Add namespaced XML-RPC method name support, closes #678
* Replace '::' with '..' in fully qualified type names for marshaling and WSDL. This improves interoperability with .NET, and closes #676.