Best new features that do require Office 365
Here are the most useful new features that need Office 365 or additional Microsoft servers such as SharePoint.
Word 2016: Real-time co-authoring
If you have documents shared through OneDrive, OneDrive for Business, or SharePoint Online, you can now group-edit them in real time, such as seeing Word changes reflected in real time to all users who've opened the document. And Word 2016 makes it easier to share those documents to others in the first place.