Ruby 1.9 And Rails 3.0The document discusses new features in Ruby 1.9 and Rails 3, including installation instructions for Ruby 1.9.1 and an overview of changes in Rails 3 such as a new plugin API, non-blocking code, and custom responders that provide a public API compatible with Rails 2.3. Key areas covered are Ruby 1.9, Rails 3, middleware, controllers, routing, and JavaScript support.Read less
