Microsoft Office 365 Groups are shared workspaces that combine a shared inbox, calendar, document library, and notes together for collaboration. Office 365 Groups extend to CRM and Power BI as well for sharing information within these platforms.
Microsoft is enhancing the groups user experience to improve usability and groups discovery. The new “header” provides a navigation experience to the core elements of the group.
The new discover page provides a list of groups that you might want to join from your organization.
There is also a new feature called Dynamic Membership that allows the group owner to add users based on business rules instead of needing to select each person individually. For example, you can set a rule to add all people where their Job Title = Vice President.