README.md in can_has_state-0.4.0 vs README.md in can_has_state-0.4.1

- old
+ new

@@ -251,6 +251,6 @@
 
 ## Compatibility ##
 
-Tested with Ruby 1.9 and ActiveSupport and ActiveModel 4.0.
+Tested with Ruby 2.3-2.4 and ActiveSupport and ActiveModel 4.2-5.1.