React 19.3: Adds a browser() API, Giving Client-Only Rendering a First-Class Name

By Daniel Curtis · InfoQ · Monday, 12 October 2026 at 10:52 (2h ago) · Original article ↗

React 19.3 was released on September 9, introducing several features including the react-dom browser() API. This API allows components to opt out of server-side rendering, addressing issues with components that rely on client-specific data. It provides a cleaner solution for managing hydration mismatches and supports conditional data fetching, enhancing flexibility for developers.

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React 19.3: Adds a browser() API, Giving Client-Only Rendering a First-Class Name

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