Check out that link for a detailed list of updates, but the big stuff includes bringing some long overdue features to the macOS version, like collaborative real-time editing, automatic saving of documents stored in the cloud, and Google Calendar and Contacts support in Outlook (finally). Microsoft recently announced a big update to Office 2016 for Mac. RELATED: What's the Difference Between Microsoft Office's Desktop, Web, and Mobile Apps? Office exists on other platforms too, like the Mac-but those versions are missing some products and features.
The Windows version of Microsoft Office has always been the gold standard for office suites, as far as features are concerned.
