This is a large feature covering many customer requests in one hit - Broadcasts is a category that now houses multiple features underneath.
Announcements - This allows users to pick to show a Banner or a Popup on any page, to all your customers or specific customers based on roles, profile type, or profile field values.
Email Campaign - This allows you to create emails for any scenario outside the BuddyBoss transactional emails, maybe you need weekly newsletters. This is perfect for you, save templates create emails and send now or schedule for later or build them for an automation!
Mass Private message - this literally does what it says - send out mass private messages to all or specific members again based on user criteria.
SMTP - we all have that plugin to setup your SMTP, for your emails. This was a nice to have so you dont need that 1 more SMTP
All of this will help manage the amount of plugins you now need and paired with the CRM and Automations you will seriously add a super power to your hands off management.