README.rdoc in memento-0.3.0 vs README.rdoc in memento-0.3.1

@@ -2,10 +2,10 @@
 
 RubyGem/Plugin for undo in Rails/ActiveRecord - covers destroy, update and create actions.
 
 == Install
 
-memento will only work with Rails 2.3 or above.
+memento will only work with Rails 3.0 and Ruby 1.9.2.
 
 == as a ruby-gem
 
 Add this line to your config/environment.rb: