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+* When your templates change, browser caches bust automatically.
+
+ New default: the template digest is automatically included in your ETags.
+ When you call `fresh_when @post`, the digest for `posts/show.html.erb`
+ is mixed in so future changes to the HTML will blow HTTP caches for you.
+ This makes it easy to HTTP-cache many more of your actions.
+
+ If you render a different template, you can now pass the `:template`
+ option to include its digest instead:
+
+ fresh_when @post, template: 'widgets/show'
+
+ Pass `template: false` to skip the lookup. To turn this off entirely, set:
+
+ config.action_controller.etag_with_template_digest = false
+
+ *Jeremy Kemper*
+
* Remove deprecated `AbstractController::Helpers::ClassMethods::MissingHelperError`
in favor of `AbstractController::Helpers::MissingHelperError`.