title: There are big differences between Rails 3 and 3.2?
body: <p>I want to learn Ruby on Rails, up to now I've always developed with PHP but now I'd like to try something new and I found this (http://ruby.railstutorial.org/ruby-on-rails-tutorial-book) book online which relies on Ruby 3.0 while the last version is 3.2.1</p>
  
  <p>there are big differences between Rails 3 and 3.2, if yes there may be big problems using this book and which are this changes?</p>
  
  <p>EDIT: if you know some other resources please post them</p>