Ruby on Rails 2.1

Greetings to all the railmen and those who are still going to become them.
Today there was a significant event. Six months after the release of Rail 2.0, finally, a new version of rail - 2.1 was released
Of the innovations worth noting:

• time zone support (by Geoff Buesing): Guide | Introduction | Railscast ;
• Dirty objects: Introduction ( partial updates ) | Railscast ;
• gem dependencies: Introduction | Railscast ;
• Named Frames (by Nick Kallen): Introduction | Railscast ;
• UTC Migration: Introduction | Railscast ;
• Improved Caching: An Introduction .

You can install new rails in the same way as always: gem install rails
Official announcement