Version Details and Security Vulnerabilities

Angular Router version 19.1.2 builds upon the solid foundation of its predecessor, 19.1.1, offering subtle but potentially impactful refinements for Angular developers. Both versions function as the routing library within the Angular framework, facilitating navigation and view management within single-page applications. A key shared dependency is tslib, ensuring compatibility with TypeScript helper functions. They also maintain the same peer dependencies, including rxjs (versions 6.5.3 or 7.4.0 and above) and core Angular modules like @angular/core, @angular/common, and @angular/platform-browser.

Notably, the core Angular module peer dependencies are different between the two versions meaning that @angular/core, @angular/common and angular/platform-browser must be updated to version 19.1.2 to benefit from the latest release.

While the file count in the distributed package remains at 12 for both, the unpacked size sees a tiny difference: version 19.1.2 comes in at 1,180,654 bytes, a slight decrease compared to 19.1.1's 1,180,682 bytes. This suggests minor optimizations within the package. Perhaps the most relevant detail for developers is the release date. Version 19.1.2 was released on January 20, 2025, four days after the release of version 19.1.1. While the changelog should be consulted for complete details, the short release window between releases could be an indicator of the presence of critical bug fixes or immediate improvements. Developers should carefully evaluate the changelog when deciding whether to upgrade.