Version Details and Security Vulnerabilities

Version 2.19.1 of @typescript-eslint/parser represents a minor update to the popular ESLint parser for TypeScript, building upon the foundation laid by its predecessor, version 2.19.0. Both versions share the core functionality of enabling ESLint to understand and analyze TypeScript code, leveraging the TypeScript ESTree project for accurate and reliable code analysis. Key dependencies like eslint-visitor-keys, @types/eslint-visitor-keys, @typescript-eslint/typescript-estree, and @typescript-eslint/experimental-utils are employed to achieve this, but importantly, each version depends on the corresponding versions of @typescript-eslint/typescript-estree and @typescript-eslint/experimental-utils. Developers relying on @typescript-eslint/parser should always ensure that the versions of these related packages are aligned to avoid potential compatibility issues.

The update from 2.19.0 to 2.19.1 includes changes within its dependencies namely @typescript-eslint/typescript-estree and @typescript-eslint/experimental-utils that provides incremental improvements. The unpacked size increased slightly (81769 vs 81590), pointing to potentially new features, bug fixes, or performance optimizations within these underlying libraries or even the parser wrapping logic. For developers, this update likely translates to enhanced parsing accuracy, improved rule compatibility, or subtle performance gains during ESLint analysis. Checking the changelogs of @typescript-eslint/typescript-estree and @typescript-eslint/experimental-utils from version 2.19.0 to 2.19.1 provides more granular insights into the specific changes.