How to test drive rails 4?

git clone https://github.com/rails/rails.git move into that directory and install all the dependencies of rails cd rails bundle install cd ../ Now let’s create a new Rails 4 application ruby rails/railties/bin/rails new APPNAME –dev All finished, now to run your Rails application as usual cd APPNAME bundle install bundle exec rails s —- —- For migrating your rails application from Rails 3 to Rails 4 contact [email protected] –]]>