Babel-runtime version 5.5.1 is a minor patch release following closely on the heels of version 5.5.0, both serving as self-contained runtimes for Babel-compiled code. These packages are essential for developers using Babel to transpile modern JavaScript into versions compatible with older environments. Critically, both versions share the same core dependency: core-js at version ^0.9.0. This dependency provides polyfills, ensuring that features like Promises, Map, and Set are available even in browsers or Node.js versions that don't natively support them.
The key difference lies within the release timing; version 5.5.1 was published approximately an hour and a half after 5.5.0. While the changelog isn't provided here, subtle fixes or improvements within this timeframe are likely the reason for the update. For developers, this suggests a potentially more refined and stable experience in 5.5.1, although the functional differences are probably minimal. Both versions are licensed under the MIT license, offering flexibility for usage in various projects. They’re also maintained by Sebastian McKenzie, a prominent figure in the Babel project. Using the latest patch version is generally recommended for incremental improvements and bug fixes, and the Babel repository on GitHub serves as the source of truth for detailed change logs.
The are not vulnerabilities for the version 5.5.1 of the package babel-runtime