Update CHANGELOG.

actionpack/CHANGELOG

@@ -1,5 +1,13 @@
 *Rails 3.1.0 (unreleased)*
 
+* Added render :once. You can pass either a string or an array of strings and Rails will ensure they each of them are rendered just once. [José Valim]
+
+* Deprecate old template handler API. The new API simply requires a template handler to respond to call. [José Valim]
+
+* :rhtml and :rxml were finally removed as template handlers. [José Valim]
+
+* Moved etag responsibility from ActionDispatch::Response to the middleware stack. [José Valim]
+
 * Rely on Rack::Session stores API for more compatibility across the Ruby world. This is backwards incompatible since Rack::Session expects #get_session to accept 4 arguments and requires #destroy_session instead of simply #destroy. [José Valim]
 
 * file_field automatically adds :multipart => true to the enclosing form. [Santiago Pastorino]

actionpack/lib/action_view/render/rendering.rb

@@ -10,7 +10,7 @@ module ActionView
     # * <tt>:file</tt> - Renders an explicit template file (this used to be the old default), add :locals to pass in those.
     # * <tt>:inline</tt> - Renders an inline template similar to how it's done in the controller.
     # * <tt>:text</tt> - Renders the text passed in out.
-    # * <tt>:once</tt> - Receives :template paths and ensures they are rendered just once.
+    # * <tt>:once</tt> - Accepts a string or an array of strings and Rails will ensure they each of them are rendered just once.
     #
     # If no options hash is passed or :update specified, the default is to render a partial and use the second parameter
     # as the locals hash.

railties/CHANGELOG

@@ -1,6 +1,8 @@
 *Rails 3.1.0 (unreleased)*
 
-* Added Rack::Cache to the default middleware stack
+* Added Rack::Etag and Rack::ConditionalGet to the default middleware stack [José Valim]
+
+* Added Rack::Cache to the default middleware stack [Yehuda Katz and Carl Lerche]
 
 * Engine is now rack application [Piotr Sarnacki]