Version 7.6.0 of @babel/types, a utility library for working with Abstract Syntax Tree (AST) nodes in JavaScript, introduces subtle but potentially impactful changes compared to version 7.5.5. Both versions maintain the same core dependencies: lodash for utility functions, esutils for ECMAScript language utilities and to-fast-properties for performance optimization. The development dependencies, @babel/parser and @babel/generator, responsible for parsing JavaScript code into an AST and converting the AST back into code, respectively, are updated to version 7.6.0 from 7.5.5, aligning with the @babel/types version.
A key indicator of change lies in the dist section. While both versions contain the same number of files (93), the unpackedSize of 7.6.0 is slightly larger (620087 bytes) than 7.5.5 (610869 bytes). This increase suggests enhancements or additions to the AST node types, validators, or helper functions within the library. Developers upgrading should investigate the changelog or release notes for @babel/types 7.6.0 (and the corresponding parser/generator release) to understand precisely what new features or bug fixes are included and incorporate them in their code when manipulating javascript ASTs. Ultimately, this helps developers ensure compatibility and take advantage of any improvements in AST handling that are available in the new version. Another key difference is the release date, version 7.6.0, was released almost 2 months after version 7.5.5.
The are not vulnerabilities for the version 7.6.0 of the package @babel/types