The Push Extension has a new role: the Communicator role!
The Communicator can send messages, display audiences, and people’s profiles, and report on their own messages.
Administrator is still the only role having access to add users, manage profiles/roles and visualize all messages and folders (including the ones created by the Communicators!), and can share messages and folders with the Communicators, empowering them to spread the communication throughout the business.
Here's a table to show the difference in permissions between the three roles a person can have in the Push Extension:
And here's a demonstration video: