Profile labels: In addition to appearing in autocomplete and hovercard profiles, labels that indicate a user's domain now also appear on the user's full profile. Learn more

Profile labels: Users in your domain can now more easily recognize other Google+ profiles within your domain and distinguish them from personal or other external profiles. Learn more

Google Apps for Education: Administrators can now enable the Google+ service for users who meet the age requirements. Learn how to control user access to Google Apps services.

New Google+ premium features (require activation):

• Administrator control to correct a user's age: If a user accidentally enters the wrong age when signing up for Google+, administrators can now correct the age.

• More participants in hangouts: Hangouts can now be started with up to 15 people instead of 10.

Restricted posts: Your Google Apps users can keep a Google+ post private to your organization. Users who receive a restricted post can't re-share it with people outside of your organization.

Hangouts in Google Calendar: Users can now schedule a Google+ hangout using Google Calendar. 

Company logo: If you’ve uploaded a custom logo for your organization's Google Apps account, it now appears in Google+.

New Google+ premium features (require activation):

Administrator controls:

• Make restricted posts the default setting for users. Note that users can override this setting for any post.
• Restrict hangouts by default. Users will see a notice when starting a hangout that it's restricted, but they can override this setting to invite specific external participants.
• Turn Hangouts on Air on or off for users. This feature allows users to broadcast a hangout to a large audience.

Google+ Profiles list: You can see which users have created a Google+ Profile. From the list, you can click a link to quickly view any user's profile.