Here’s a short a walk-through of the major changes:
Terms of Service. We’ve updated the Terms of Service to describe the rights that you grant to administrators of your company or organization when you sign up for Asana with an email address from that entity. Please read them carefully.
Subscription Agreement. These updated terms govern our commitments and relationship with your organization when you subscribe to a Premium plan. We’ve also provided a PDF of these terms so you can forward on to your business team.
API Terms. We’re publishing our API terms alongside our other terms and policies. As our API evolves, these terms will be updated frequently. If you are an active Asana API user, please check back often.
Source : https://blog.asana.com/2015/04/updating-our-terms-of-service/