rails.rst in sentry-raven-2.7.2

- old
+ new

@@ -1,10 +1,10 @@
 Ruby on Rails
 =============
 
 In Rails, all uncaught exceptions will be automatically reported.
 
-We support Rails 3 and newer.
+We support Rails 4 and newer.
 
 Installation
 ------------
 
 Install the SDK via Rubygems by adding it to your ``Gemfile``: