May 23
If you have a mac with Mac OS X 10.5 (Leopard) and try to create Ruby on Rails application. It’s very simple. But it comes with Rails 1.8.6, but you may need to get rails 2.0.2 for your applications with latest changes.
Uninstall old version:
$ sudo gem uninstall rails
Install a particular version:
$ sudo gem install -v 2.0.2 rails
Install the latest and greatest version:
$ sudo gem install rails
