Version Details and Security Vulnerabilities

eslint-plugin-react is a popular ESLint plugin providing React-specific linting rules. Version 7.21.0, released on September 23, 2020, builds upon the solid foundation of version 7.20.6, released on August 12, 2020, with subtle but potentially impactful changes. Examining the package metadata reveals similar dependencies and devDependencies, suggesting a focus on rule refinement and bug fixes rather than major architectural overhauls. Both versions share the same core dependencies required for React code analysis, such as prop-types, jsx-ast-utils, and polyfills for modern JavaScript features. The peer dependency on ESLint remains consistent, supporting ESLint versions 3 through 7.

A key difference lies in the dist metadata, indicating that version 7.21.0 has a slightly larger unpacked size (738036 bytes) than version 7.20.6 (726443 bytes) and one more file included. This suggests the addition or modification of linting rules, documentation updates, or test case expansions. While not explicitly stated, developers upgrading from 7.20.6 to 7.21.0 should anticipate potentially new linting errors surfacing in their React projects, encouraging adherence to evolving best practices, as well as improvements in accuracy. Users should consult the changelog and test updated configurations before deploying. The updated version promises refinement and improved static analysis capabilities.