I guess that would depend on your definition of current. There is a new version in beta that has already been largely updated, and continues to actively follow Rails development.it is likely that many of the examples will no longer work as described. I know that is the case with current version Agile Web Development with Rails.
How many surrealists does it take to screw in a lightbulb? One to hold the giraffe and one to fill the bathtub with brightly colored power tools.