I'm trying to setup Bundler with Rails 2.3.10 to make the transition to Rails 3 easier. But I'm not sure what the instruction on this page means. Am I supposed to require all the gems that I'm using in my app? If so, where? Thanks for reading.

I'm trying to setup Bundler with Rails 2.3.10 to make the transition to Rails 3 easier. But I'm not sure what the instruction on this page means. Am I supposed to require all the gems that I'm using in my app? If so, where? Thanks for reading.

Use the Rails 2.3 tutorial http://gembundler.com/rails23.html it's better on your case.
The setup made all requirement of all gem in your Gemfile. He avoid to do a lot of require ''.