These are Edge Guides, based on the current master branch.
If you are looking for the ones for the stable version, please check http://guides.rubyonrails.org instead.
<% else %>These are the new guides for Rails 4.0 based on <%= @version %>. These guides are designed to make you immediately productive with Rails, and to help you understand how all of the pieces fit together.
<% end %>The guides for Rails 3.2.x are available at http://guides.rubyonrails.org/v3.2.18/.
The guides for Rails 2.3.x are available at http://guides.rubyonrails.org/v2.3.11/.