RubyMine, the most intelligent Ruby on Rails IDE from JetBrains, is officially updated. RubyMine 4.5 includes support for MacRuby, Capistrano, Slim, Sass, Rails Engines, Mongoid, Sinatra, pik, rbenv, and more. With this release JetBrains also introduces a new, more affordable, Academic license. It allows students and teachers to use RubyMine for non-commercial purposes, including education and research. Please read for more details. As usual, a free 30-day trial is available if you want to try RubyMine as your Ruby on Rails IDE.