Acorn version 5.0.0 represents a notable update to the popular ECMAScript parser, succeeding version 4.0.13. Both versions maintain the core functionality of parsing JavaScript code and share the same MIT license, ensuring developer-friendly usage. While both rely on tools like rollup, unicode-9.0.0, and rollup-plugin-buble for development, version 5.0.0 introduces a suite of new development dependencies focused on code quality and style. These additions include eslint for linting, eslint-plugin-import for import/export validation, eslint-plugin-promise for promise-related checks, eslint-config-standard for adhering to the Standard JavaScript style, and eslint-plugin-standard for enforcing standard coding practices. The inclusion of these tools suggests a stronger emphasis on code maintainability and consistency in version 5.0.0.
The release date also highlights a significant difference, with version 5.0.0 released in March 2017 and version 4.0.13 released later in May 2017. For developers, this implies that version 5.0.0 contained newer parsing capabilities and potentially bug fixes at an earlier date while 4.0.13 represents a patch over the earlier version. Developers choosing between these versions should consider whether the benefits of enhanced code quality checks outweighs the benefit of the later bug fixes.
The are not vulnerabilities for the version 5.0.0 of the package acorn