Hello all! I just published a leanpub book on how to upgrade your Rails 3 application to Rails 4. It covers all new features introduced in Rails 4 and contains the deprecated features as well. You can follow along with an included upgrade checklist to see if you upgraded all breaking changes from Rails 3 to Rails 4. You can get it over here: http://www.leanpub.com/upgradetorails4. Feedback and suggestions are very welcome. Thanks! Cheers, Philip -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/b_KHu4yAau4J. For more options, visit https://groups.google.com/groups/opt_out.