Version Details and Security Vulnerabilities

@types/react version 19.0.4 is a minor update to the TypeScript definitions for React, building upon the foundation laid by version 19.0.3. Both versions provide essential type information for React developers using TypeScript, ensuring type safety and improving the development experience. The core functionality remains consistent: defining the shapes of React components, props, and state, as well as supporting various React APIs and features like hooks and context. Both versions depend on csstype version ^3.0.2, indicating no change in CSS type definitions.

The key difference lies in the internal changes reflected by the increment in the unpacked size, which increased from 790092 to 793136. While the file count remains constant at 28, this increase in unpacked size likely points to additions, refinements, or fixes in the type definitions contained within those files. Developers should anticipate potential improvements in the accuracy or completeness of the type definitions. A major difference can be found in the release date: version 19.0.3 was published on January 6th, 2025, while version 19.0.4 came out on January 8th, 2025.

For developers using TypeScript with React, upgrading from 19.0.3 to 19.0.4 is generally recommended to take advantage of any bug fixes or type definition enhancements. Because it's a minor version update, breaking changes are unlikely, making the upgrade a low-risk process.