About This Title Pages: 456 Published: September 2013 ISBN: 9781937785567 In Print Agile Web Development with Rails 4 by Sam Ruby Rails just keeps on changing. Both Rails 3 and 4, as well as Ruby 1.9 and 2.0, bring hundreds of improvements, including new APIs and substantial performance enhancements. The fourth edition of this award-winning classic has been reorganized and refocused so it’s more u