A new version of Office 2016 has been unveiled today by Microsoft at Ignite 2015, which is available now for users to download and try out. The Office 2016 suite has been, up until now, in closed testing with a small group of Office 365 users. Today, it sounds like the preview is opening up to a more broader audience than before, allowing for the public to now download the latest build.
The new Office 2016 preview is available now. Check out this link for more information about the preview and download links.