@babel/core version 7.1.6 represents a minor update over the previous stable version 7.1.5 of the core Babel compiler. While both versions share the same functionality as the core compiler, developers upgrading to 7.1.6 will find subtle but important changes, primarily within the dependency tree. A notable update is the dependency on debug, moving from version ^3.1.0 in 7.1.5 to ^4.1.0 in 7.1.6. This brings in potential improvements and bug fixes from the debug package, focusing on debugging capabilities within Babel's compilation process. The json5 dependency also sees an upgrade, from version 0.5.0 to ^2.1.0, probably increasing security, fixing bugs and upgrading features around json5 parsing and usage. Several @babel scoped packages have been updated in their respective dependency requirements, including @babel/types, @babel/parser, @babel/traverse, and @babel/generator, all incrementing from version 7.1.5 to 7.1.6, indicating internal enhancements and bug fixes across the Babel transformation pipeline and the types, parser, traverse engine and generator packages. It's worthwhile for developers to test integrations using these packages. Another interesting metric is that even if the file count is different (52 vs 53), the unpacked size increased, likely due to increased complexity or new features of the @babel dependencies. These incremental updates collectively contribute to a more refined and potentially more robust Babel compilation experience. The release date also shows this version is newer than the previous one by about a week.
The are not vulnerabilities for the version 7.1.6 of the package @babel/core