Angular Universal was a project to expand on the core APIs from Angular (platform-server) to enable developers to do server side rendering of Angular applications in a variety of scenarios.
In version 17, Universal has been moved into the Angular CLI repo. Code has been refactored and renamed (mostly under @angular/ssr now), but the core functionality and architecture is unchanged.
Universal features such as server-side rendering and build-time prerendering are now directly supported in Angular CLI and do not require a separate integration with Universal.
As a result, this repository is effectively in maintenance mode and is no longer accepting contributions. Improvements to Angular's SSR/prerendering tooling should be made against the CLI repo directly. Universal versions under long-term support (LTS) are still maintained by the Angular team and will continue to receive security fixes until they fall out of LTS.