When you create a new talk, you have the option to notify registered attendees. This helps keep your audience informed about newly added sessions without the need for manual follow-ups.
If attendees are already registered, you’ll see an option to notify them once the talk is created. This notification option becomes available only after the talk has been created, ensuring a seamless workflow.
Please note that when you duplicate a talk, this option won't be available. Instead, you'll need to go to the Advanced Settings of the talk, tick "Notify Attendees of This Talk?", and ensure that the transactional email "A new talk has been added!" is published.