I heard about one thing, which is related with rails version. The thing is ,i created a ruby on rails application with rails version 3.1. So we can execute the same rails application on another different rails version by changing one command via console. i think this is related with the installation of rails with RVM(ruby version manager)? how is it possible?
i used this link for the ruby on rails setting up on ubuntu http://ryanbigg.com/2010/12/ubuntu-ruby-rvm-rails-and-you/. This link also with RVM.
But how is the same possible ?
**can anyone have another link. which using we can run the rails application on different rails version? **