For all of you collaborators out there – announcing an update to the availability of distributed collaboration!
Collaboration has been released from the Early Adopter Community and is now available for all users with ArcGIS Online and ArcGIS Enterprise 10.5.1 and up.
To enable collaboration in your ArcGIS Online organization, visit the licensing section of My Esri and select the radio button under ‘enable collaboration’ next to your ArcGIS Online subscription name and ID.
Check out the rest of the article on the ArcGIS Blogs site.