Version Details and Security Vulnerabilities

Angular's @angular/common package provides essential directives and services for building Angular applications. Comparing versions 20.0.3 and 20.0.4, we observe subtle yet important distinctions for developers seeking a stable and well-supported environment. Both versions share identical dependencies, relying on tslib (version ^2.3.0) for TypeScript helper functions. Critically, their peer dependencies also remain consistent: rxjs (compatible with versions ^6.5.3 or ^7.4.0) and @angular/core (version mirroring the @angular/common version). This ensures seamless integration within existing Angular projects using compatible core and RxJS versions. The file count and unpacked size are also the same, suggesting that the core functionalities and the amount of code did not change. So, the difference between both versions is likely a bug fix if we assume that no major improvements were done.

The key difference lies in the @angular/core peer dependency which dictates the compatible @angular/core version. Version 20.0.4 of @angular/common explicitly requires @angular/core of the same version, 20.0.4, while the prior version only requests version 20.0.3. While seemingly minor, this highlights the importance of matching @angular/common and @angular/core versions precisely.

The release dates further illustrate the versions' timeline, with 20.0.3 being released a week before 20.0.4. Developers should carefully consider their project's Angular version and peer dependencies before upgrading to ensure optimal compatibility and stability. Always refer to the official Angular changelog for a comprehensive list of changes and potential breaking issues.