Grab the React 19 Guide: Chapters 0:00 - Intro 0:26 - How to use React 19 0:38 - React compiler 0:58 - No memoization hooks 1:38 - No forwardRef 2:07 - use() hook 2:27 - Fetch data with useEffect/use 3:02 - Use context with useContext/use 3:32 - Directives 3:53 - Actions 4:12 - Client Actions 4:37 - useFormStatus() hook 5:12 - useFormState() hook 6:12 - useOptimistic() hook 7:07 - Conclusion