New React 19 Features You Should Know – Explained with Code Examples

React 19 introduces major updates to simplify coding and boost performance. The new React Compiler automatically optimizes code, eliminating the need for manual memoization hooks. Ref handling is streamlined without forwardRef. The versatile use() hook replaces multiple hooks for data fetching and context management. New features include directives for component configuration, actions for form handling, and hooks like useFormStatus() and useOptimistic() for improved state management and user experience. These changes aim to reduce complexity and enhance React development.