Core-js is a widely used JavaScript standard library providing polyfills for modern JavaScript features, ensuring compatibility across different browsers and environments. Version 2.6.12 is a patch release succeeding version 2.6.11, primarily focusing on bug fixes and minor improvements, rather than introducing significant new functionalities. Both versions share the same core set of development dependencies, including tools for testing (Karma, QUnit), linting (ESLint), bundling (Webpack), and task automation (Grunt). The consistent dependency list suggests a stable development workflow and a commitment to code quality.
The key difference between the two versions lies in the "dist" object, specifically the unpackedSize. Version 2.6.12 has an unpacked size of 2262779 bytes, slightly larger than the 2261591 bytes of version 2.6.11. While the fileCount remains the same at 1489, this increase in size likely points to minor additions and adjustments in the polyfills or supporting files. Developers upgrading from 2.6.11 to 2.6.12 can anticipate a negligibly larger footprint.
The release dates further highlight the nature of these releases. Version 2.6.11 was released in December 2019, while 2.6.12 came out in November 2020, approximately a year later. If you are upgrading make sure to check if any specific polyfill was changed since the latest version. If you are starting a new project, simply use the latest version.
The are not vulnerabilities for the version 2.6.12 of the package core-js