@swc/core has a new version 1.2.49, released on February 23, 2021, following closely after version 1.2.48 released on February 22, 2021. Both versions describe themselves as a "Super-fast alternative for babel", making them appealing to developers seeking performance improvements in their JavaScript toolchains. Looking at the dependencies, both versions rely on a similar set of core components and platform-specific binaries like @swc/core-darwin-x64, @swc/core-linux-x64-gnu, and others, indicating a consistent approach to cross-platform support. The versions of these platform specific binaries are different aligning with the core versions.
While the core dependencies remain largely the same, the subtle changes between version 1.2.48 and 1.2.49 may contain important bug fixes, performance tweaks, or minor feature enhancements that could impact the developer experience. The change also incorporates an update to Browserslist, from version 4.12.0 to 4.16.3, this is relevant for developers relying on browser compatibility configurations, as this update likely introduces new browser targets and modern syntax support. Given the rapid release cycle, developers considering an upgrade should consult the official changelog or release notes to understand the specific improvements included in version 1.2.49 and whether they address any known issues or offer benefits relevant to their projects.
The are not vulnerabilities for the version 1.2.49 of the package @swc/core