Version 4.9.1 of @typescript-eslint/parser, an ESLint custom parser leveraging TypeScript ESTree, introduces subtle refinements over its predecessor, version 4.9.0. While both versions share a core architecture with dependencies like debug, @typescript-eslint/types, @typescript-eslint/scope-manager, and @typescript-eslint/typescript-estree, a closer look reveals nuanced changes that might impact developers.
Specifically, the dependencies in the newer version have been updated to their respective 4.9.1 versions, possibly incorporating bug fixes, performance enhancements, or new features within those sub-packages. The unpacked size of the package also increased slightly, suggesting the addition of new code or resources. Developers should investigate any new code added and verify it does not violate any policies or security concerns. Furthermore, the releaseDate indicates that version 4.9.1 was published a week after version 4.9.0, implying a focused effort to address immediate issues or incorporate timely adjustments.
For developers utilizing @typescript-eslint/parser, upgrading to 4.9.1 offers the potential benefits of these underlying improvements in core dependencies. It's crucial to review the changelogs of dependent packages to comprehend the specific changes in 4.9.1. Before upgrading, it's recommended to run tests to verify compatibility and stability of the codebase and also check for security updates. The peer dependency constraint on ESLint versions remains consistent, ensuring compatibility for those using ESLint 5, 6, or 7. By upgrading to the newest patch, developers also enable themselves for future minor updates that may have breaking changes.
The are not vulnerabilities for the version 4.9.1 of the package @typescript-eslint/parser