React DOM version 19.1.1 is a minor update to the core React library focused on browser DOM interactions, succeeding version 19.1.0. Both versions share the same fundamental purpose: facilitating the rendering of React components within the Document Object Model (DOM) of web browsers. Each relies on "scheduler" as a functional dependency, specifically versions greater than or equal to 0.26.0, ensuring consistent task prioritization and management within the React runtime. Also, both are released under the MIT license, with source code hosted on GitHub under the facebook/react repository.
The notable differences reside in the peer dependencies. Version 19.1.1 is meant to be used together with React 19.1.1, while version 19.1.0 is dependant on React 19.1.0. The other difference is the release date, version 19.1.1 was released on July 28, 2025 and version 19.1.0 was released on March 28, 2025. The unpacked size of 19.1.1 is slightly smaller (6552556 bytes) than the previous version (6552660 bytes), but the file count is the same (43).
For developers, this means that upgrading from 19.1.0 to 19.1.1 should be straightforward if they want to keep up to date with the newest releases, and there may be some hidden bug fixes included. Staying updated with minor versions ensures access to the latest performance improvements and bug fixes in React's DOM rendering capabilities.
The are not vulnerabilities for the version 19.1.1 of the package react-dom