I would like to buy this book but looking the date of release (2014-03-27) I wonder: should I wait for a new book or buy this edition? Ruby is in 2.2 now.

Does anyone have an idea? What do you recommend?

Thank you!

I’m looking at this now over a year later than the OP, and wondering the same thing - Ruby is now in v2.4.

Will this book be updating anytime soon? I really want a good Ruby reference, but I don’t want to buy such an outdated reference to find it updated only months later.

Same question, but now in January, 2018… is a 5th edition eminent? And, if so, will we be grandfathered in if we purchase the 4th edition now?