Microsoft first announced support for Google Calendar and Contacts in Outlook 2016 for Mac last year. It was made available to Office Insiders in Fast Ring. With this support, users can add, delete, edit time and location of Google Calendar entries. And all the changes will be synced across devices.
After testing this feature for several months, Microsoft today announced that they are rolling this support for Insiders in the Slow ring.
Outlook 2016 for Mac users who are part of the Office Insider program can try this feature today. Click Help > Check for Updates and then follow the directions found here.