Google Meet will fully replace legacy Duo calling features by September 2025. Users should update the Meet app and save their Duo call history and messages before this date. Some legacy features will be removed, but Google Meet will offer upgraded functionalities such as live captions, in-call chat, stackable effects, cloud encryption, and screen sharing. Users must keep their Meet app updated to ensure a smooth transition; if not all participants are updated, calls will revert to the legacy experience. Users are also encouraged to export their call history and video messages from the Duo app.