The text discusses the introduction of a new feature in Daily Prebuilt called hand raising, which allows video call participants to raise their virtual hands to indicate they'd like to speak. To implement this feature, developers need to use a new method called `setUserData()` provided by the daily-js API. This method allows users to set custom data on a meeting participant, including the ability to raise and lower their hand. The text provides a step-by-step guide on how to create two custom React hooks, `useHandRaising` and `useHandRaisedQueue`, which handle the logic for raising and lowering hands, as well as retrieving the queue number for participants who have raised their hand. These hooks are then used in the `Tray` and `Tile` components to display a badge indicating whether someone has raised their hand and what their position in the queue is.