Just a quick note for those interested in trying out the new Ruby 2.1 Preview 1. When using rvm simply type:

rvm install ruby-2.1.0-preview1

It's that simple. After installing you can this to use it:

rvm use ruby-2.1.0-preview1

For a list of new features in Ruby 2.1 checkout this presentation

Ruby 2.1 is scheduled to be released on Christmas day.

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Adam has worked with Isotope 11 for 4 years and has been a professional software developer for over 12 years. He has been lead developer on multiple Fortune 500 projects. He is the author of "Beginning Rails 4" which was published by Apress in September 2013.