The @angular/platform-browser package facilitates the use of Angular within web browser environments. Version 5.0.0 represents a significant update from the earlier 4.4.7. While both versions share the same core purpose and MIT license, the primary difference lies in their compatibility and feature set. Version 5.0.0 requires @angular/core and @angular/common at version 5.0.0, reflecting a major version upgrade in the Angular framework itself. Conversely, version 4.4.7 is dependent on @angular/core and @angular/common version 4.4.7.
Developers considering an upgrade should note the peer dependency requirements, ensuring their core Angular packages are aligned with the platform-browser version. The newer 5.0.0 release, published in late 2017, likely incorporates performance improvements, bug fixes, and new APIs aligned with the broader Angular 5 release that improve the development experience. Although the details of these changes are not specified in this metadata, Angular's release notes generally detail these improvements.
Note that despite being released earlier, version 4.4.7 was updated much later than 5.0.0 with a release date in early 2018. This indicates that version 4.4.7 was probably receiving critical patches and fixes for longer. This can be relevant for developers who cannot keep up with the latest major releases of Angular and prefer to stick to Long Term Support (LTS) versions. The tarball URLs provide the download locations from the npm registry.
The are not vulnerabilities for the version 5.0.0 of the package @angular/platform-browser