Twilio has added support for Announcements in its Conference service, allowing developers to play or say messages into a conference using one API call, simplifying the process and improving compliance with legal requirements such as playing disclaimers to participants when calls are being recorded. The new feature adds two optional parameters to the Conference and Participant API, including `AnnounceUrl` for specifying a URL for the announcement and `AnnounceMethod` for specifying the HTTP method used to send the announcement. This update is expected to improve the usability of the service and enable developers to build more advanced applications using Twilio's Conference feature.