If you use Teams to host your meeting for a large audience (Live Events) you should know that a new encoder (RTMP-In) is available in preview.
The new encoder option is available when you create your Live Event meeting
To be able to use this new encoder you need to ensure your Teams tenant is configured for public preview from the Teams administration portal (https://admin.teams.microsoft.com/) under the Teams\Teams update policies
NOTE this allows you to target (if needed) specific users
