Microsoft dropped the latest version of its Office 2016 preview today.
http://blogs.office.com/2015/05/04/office-2016-public-preview-now-available/
Office 2016 Public Preview now available - Office Blogs
blogs.office.com
Today we’re expanding the Office 2016 Preview, making it available to Office users everywhere in preparation for general availability in Fall 2015. Office 2016 previewers will get an early look at the next release of Office on Windows desktop, but more importantly they’ll help to shape and improve t…