First off, great work on Rails Guides! Thank you.
Rails 2.3 changes
config.action_controller.sessions_store = :active_record_store
from config/environment.rb, to
ActionController::Base.session_store = :active_record_store
Although http://guides.rubyonrails.org/2_3_release_notes.html makes a
mention of this, it does not quite tell you where to configure the
session store information. Can/should this be added to the guide?