* +Rails::Plugin+ is deprecated and will be removed in Rails 4.0. Instead of adding plugins to +vendor/plugins+ use gems or bundler with path or git dependencies.
+h3. Action Mailer
+* Upgraded <tt>mail</tt> version to 2.4.0.
+* Removed the old Action Mailer API which was deprecated since Rails 3.0.
h3. Action Pack
h4. Action Controller
@@ -284,7 +290,7 @@ h5. Deprecations
* Passing formats or handlers to render :template and friends like <tt>render :template => "foo.html.erb"</tt> is deprecated. Instead, you can provide :handlers and :formats directly as an options: <tt> render :template => "foo", :formats => [:html, :js], :handlers => :erb</tt>.
* Adds a configuration option <tt>config.assets.logger</tt> to control Sprockets logging. Set it to +false+ to turn off logging and to +nil+ to default to +Rails.logger+.