Ruby on Rails 2.0, an upgrade to the Web application framework, was released on Friday, said the developer of the framework, David Heinemeier Hansson. Version 2.0 features an emphasis on REST (Representational State Transfer) Web services instead of SOAP Web services. Security enhancements also are featured. Ruby on Rails 2.0 is available for download here. More information can be found here on InfoWorld.com Technology Industry