<ul><li>React 19 introduces actions and optimistic state for better form handling and UX.</li><li>New meta tags API allows for better management of document metadata.</li><li>Enhanced server components with improved streaming and suspense integration.</li><li>Asset loading optimization with APIs for preloading critical images and fonts.</li><li>New useFormState hook for managing form state and useTransition improvements.</li><li>Performance improvements with automatic batching of state updates.</li><li>Enhanced error boundary for improved error handling.</li><li>React 19 brings significant improvements to developer experience and performance.</li></ul>

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