Outlook gets support for swipe gestures and, critically, Google Contacts and Calendars support. PowerPoint gets the ability to use your mouse as a laser pointer in Slide Show and the ability to trim video and audio clips right in the application. But Excel gets some more charts and functions, better support for PivotTable charts, and faster formula calculation. Word doesn't get any notable new features besides those that apply to all applications (though it does get some security updates, like fixes for the CVE-2018-0792 and CVE-2018-0794 remote code execution vulnerabilities).
Need to roll back? Check the version history for a list of changes and access to earlier versions. We save for you! Changes are saved automatically for documents, worksheets, and presentations stored in the cloud, and you can see others’ updates in seconds. Here's how Microsoft describes its implementation of the other major feature of the update, real-time cloud saving: Flag icons indicate where they're working, and their changes appear to collaborators in real time as they work. As in Google docs, thumbnails show which users are collaborating with you on a document. Now, users on Mac and Windows can see each other's changes in real-time.