Top 5 reasons why you should upgrade your Rails Application

Almost every Ruby on Rails application starts life on the latest current version of Rails.But as time moves on, sometimes these applications are not kept up to date with the latest version of Rails. As the months roll by, the application becomes more and more out of touch with the most recent version of Ruby on Rails.But why does this matter? Why should you, or your management care?There are a bunch of reasons to do so, but I thought I would list out my top 5.