Also note that Rails 4 will have threadsafe! on by default, too, so if you didn'...

		steveklabnik on Feb 14, 2013 \| parent \| context \| favorite \| on: Heroku's Ugly Secret: The story of how the cloud-k... Also note that Rails 4 will have threadsafe! on by default, too, so if you didn't have it on here, that'll make it different for those apps.