Version Details and Security Vulnerabilities

Version 19.1.12 of @types/react, the TypeScript definitions for React, is a minor update compared to version 19.1.11. Both versions share the same core description, license (MIT), and dependency on csstype version ^3.0.2. They are both housed within the DefinitelyTyped repository on GitHub. Key differences lie in the dist object and the releaseDate.

The newer version, 19.1.12, has a slightly smaller unpacked size (808145 bytes) compared to its predecessor (808297 bytes), although the fileCount remains the same at 28. This reduction in size suggests potential minor optimizations or refinements in the type definitions themselves. The most interesting aspect is the release date: 19.1.12 was released on August 27, 2025, while version 19.1.11 was released on August 22, 2025. The fact that the packages claim to be released in the future may indicate a testing error or the use of a test registry server.

For developers using @types/react, this update signifies a subtle refinement. While the core functionality defined by the types remains consistent, the minor size reduction could contribute to marginally faster installation or build times. Developers should always review the specific changes introduced in a new version, however, given the tiny difference in unpacked size and identical dependency, developers that need the latest @types/react definition should feel confident updating without concern for major breaking changes as the versions are almost identical.