Angular developers considering an upgrade to @angular/platform-browser from version 6.1.8 to 6.1.9 will find a relatively incremental update. Both versions serve as the essential bridge between the Angular framework and web browsers, enabling Angular applications to run smoothly within the browser environment. They share the same core description, licensing under MIT, and author (angular). They also depend on the same tslib version (1.9.0 or higher) for TypeScript helper functions.
The key difference lies in the peer dependencies. Version 6.1.9 requires @angular/core and @angular/common at version 6.1.9, while version 6.1.8 requires the same packages at 6.1.8. This indicates that version 6.1.9 likely includes bug fixes, performance improvements, or minor feature enhancements that necessitate corresponding updates in the core and common modules of Angular. The change in unpackedSize from 2,487,910 in 6.1.8 to 2,489,326 in 6.1.9 is small but supports this since means that some code was updated but it doesn't seems significant.
For developers, the primary motivation to upgrade would be to benefit from these potential fixes and enhancements, aligning their @angular/platform-browser version with recommended versions of @angular/core and @angular/common. It's essential to ensure that you upgrade all three packages together to maintain compatibility and avoid unexpected behavior. The newer release date of version 6.1.9 (September 26, 2018) compared to version 6.1.8 (September 19, 2018) indicates that the newer version is the latest, including the latest available fixes at the time of its release.
The are not vulnerabilities for the version 6.1.9 of the package @angular/platform-browser