There’s no need to send extra notes or emails because everyone will be notified when a file is updated. With real-time co-authoring, you can work with others in the same document at the same time.The company says that Office 2021 will include many of the collaboration features found in Microsoft 365. The standalone Office 2021 will also be available for PC and Mac. Microsoft has announced the release of Microsoft 365, its subscription for its services.