Version Details and Security Vulnerabilities

Eslint-plugin-react, a vital tool for React developers seeking to enforce consistent code style and best practices, saw a minor version update from 2.1.0 to 2.1.1 in April 2015. While seemingly small, this release includes dependency updates that impact the development environment. Most notably, the supported ESLint version jumps from 0.18 to 0.19.0. Developers upgrading should ensure their ESLint setup meets this requirement. Furthermore, babel-eslint, a parser that allows ESLint to understand modern JavaScript syntax, has been updated to version 3.0.1 in 2.1.1. This is valuable for projects using ES6 or later features.

Another key change is the use of a Git repository URL instead of a specific version of eslint-tester in the newer version, pointing to a specific commit (c2a1f722cd). Typically, this suggests a change in how the plugin's rules are tested internally.

These updates, while incremental, can be important for compatibility and stability. The upgrade to ESLint 0.19.0, in particular, likely includes bug fixes and improvements within ESLint itself, indirectly benefiting users of eslint-plugin-react. Developers should also ensure their testing environment is compatible with any change from the eslint-tester from version 0.6.0 to a more git dependant methodology. Choosing the right version hinges on your project's existing ESLint and Babel configurations and the need for the latest parser enhancements.