Office 2013 Modern Authentication Public Preview Announced
On March 23, 2015, Microsoft announce that Office 2013 client modern authentication features have moved from private preview to public preview. This means the program is easier to join and production support is included for participants. Modern authentication brings Active Directory Authentication Library (ADAL)-based sign in to Office 2013 Windows clients.
Microsoft first posted this blog, Office 2013 modern authentication public preview announced on Office Blogs.