How to update the existing application to new rails version?

I have a rails application created with an earlier version of Rails. I
would like to take benefit of new features in Rails version 2.2.2 Is
there a way or command by which the configuration settings of the
existing application can be updated as per needs of newer version of
rails? I understand that making any changes to the code would be my

Just run rake rails:update in your application folder.

I have done it for our app and it was pretty painless.


On Mon, 08 Dec 2008 19:05:58 +0900, Prabhakar Karve