Rails 5 Revealed

This short early adopter book details both how you'll upgrade existing web and other applications from Rails 4.2 to 5 and how to create new applications in Rails 5. It includes the new ActionCable for HTML5 web sockets; and faster web linking are covered.
What You'll LearnWhat are the new changes to Rails 5 and how to upgrade from Rails 4.2 
How to use the new Ruby Persistence tool/framework, ActiveRecord 
How to handle test framework changes 
What are the latest Rails API and how to employ them
How to integrate with JavaScript and Turbolinks 3 
What is and how to use the new ActionCable