Core-js version 1.0.0 represents a notable upgrade from the preceding stable release, version 0.9.18, reflecting advancements in JavaScript standardization and development tooling. Both versions serve as standard libraries, aiming to polyfill modern JavaScript features for broader browser compatibility. However, developers should note subtle shifts in the dependency landscape that underpin these versions.
The transition from 0.9.18 to 1.0.0 is marked by updates in testing and linting tools. For instance, the karma dependency jumps from version 0.12.x to 0.13.x, and eslint advances from 0.23.x to 0.24.x potentially indicating updates to testing processes. The webpack dependency sees an increment from 1.9.x to 1.10.x, which influences module bundling and build processes.
A key difference lies in the removal of karma-opera-launcher in version 1.0.0, offset by an adjustment to the versions of karma-chrome-launcher and karma-firefox-launcher, suggesting a possible refinement in the testing strategy across browsers. Developers utilizing core-js should evaluate any impact from these adjustments regarding browser compatibility of their implementations, especially with regards to legacy browsers. The update signifies a continuous effort to align with evolving web development practices. Released approximately a month apart, core-js version 1.0.0 builds further on the goal of providing developers with essential JavaScript polyfills.
The are not vulnerabilities for the version 1.0.0 of the package core-js