Version Details and Security Vulnerabilities

Core-js version 3.8.0 represents an incremental update to the popular JavaScript standard library, building upon the foundation laid by version 3.7.0. Both versions serve the same fundamental purpose: providing comprehensive polyfills and shims for modern JavaScript features, enabling developers to utilize these features across a wide range of environments, even those with older JavaScript engines. This ensures greater code portability and consistency.

A key area of difference lies in the increased size of version 3.8.0. The unpacked size increased from 670,898 bytes in 3.7.0 to 684,594 bytes in 3.8.0, and the file count grew from 1723 to 1752. This suggests the inclusion of new polyfills, refinements to existing ones, or updates to internal tooling. While not drastically large, the increase indicates expanded coverage of the JavaScript standard or deeper compatibility efforts. The release date also shows that version 3.8.0 was published November 25, 2020, approximately three weeks after the 3.7.0 version.

For developers, this means version 3.8.0 likely offers enhanced support for newer ECMAScript proposals and a more robust implementation of existing features that are included which reduces the likelihood of encountering edge cases or subtle incompatibilities. While the core functionality remains the same, upgrading to 3.8.0 provides access to a more comprehensive and refined set of polyfills, which is especially valuable for developers targeting a broad range of browsers and Node.js versions, improving the overall reliability of their JavaScript code. The increase in resources required by version 3.8.0 may impact your decision making process, depending on the use case.