Domains whose admins have enabled the ‘enable pre-release features’ checkbox in the Control Panel The following new features are now available in Google Calendar for these domains: Optional attendees: When adding invitees to an event, you now have the ability to communicate the importance of a meeting for each attendee. New event page for some domains: The recently released new event page is now also available to domains that have enabled our Google Calendar Connectors API which shows data from other services. This page was previously unavailable to these domains. Domains with ‘enable pre-release features’ checkbox disabled For these domains, the following features are intended for release on December 7: – Optional attendees. – New event page for domains that have enabled in Google Calendar Connectors API.