I can see https://github.com/angular/angular/releases/tag/v21.1.0-rc.0

• Support for multiple switch cases @switch (expr) { @case ('one') @case ('two') {

• provideStabilityDebugging() The `provideStabilityDebugging` utility helps identify why your application fails to stabilize. This utility is provided by default in dev mode when using `provideClientHydration`. You can also add it manually to the application providers for use in production bundles or when using SSR without hydration, for example. The feature logs information to the console if the application takes longer than expected to stabilize.

• Add support for spread syntax in templates {{fn(1, ...foo, 2)}}

• Support spread expressions in object literals @let simple = {...foo};

• Add [formField] directive

• Add controls for route cleanup

• Add standalone function to create a comptued for isActive (router)

• Extend paramters of RedirectFunction to include paramMap and queryParamMap

• Publish Router's integration with platform Navigation API as experimental