Angular developers considering an upgrade to @angular/compiler from version 4.2.0 to 4.2.1 will find a smooth transition, with the changes primarily focused on underlying improvements and bug fixes rather than sweeping API alterations. Both versions share the consistent foundation of the Angular framework, ensuring a familiar development experience. Key dependencies remain the same, with tslib at ^1.7.1 providing the necessary TypeScript helper functions. The peer dependency on @angular/core is the most significant indicator of compatibility: 4.2.1 of @angular/compiler requires @angular/core version 4.2.1, while 4.2.0 uses core version 4.2.0.
The upgrade provides access to the benefits of the latest patches related to compiler performance, stability, and potentially addressing specific edge cases. Developers leveraging advanced compiler features or encountering peculiar issues in 4.2.0 are encouraged to upgrade. While the core functionality remains consistent, subtle refinements contribute to a more robust compilation process. Given all this, users need to carefully update the core package version alongside of the compiler package.
The are not vulnerabilities for the version 4.2.1 of the package @angular/compiler