In Angular version 11, the type of `AbstractControl.parent` can be `null` to reflect the runtime value more accurately. This migration automatically adds non-null assertions to existing accesses of the `parent` property on types like `FormControl`, `FormArray` and `FormGroup`.

Add 'declarationMap' compiler options for non production library builds.

ViewEncapsulation.Native has been removed as of Angular version 11. This migration replaces any usages with ViewEncapsulation.ShadowDom.

NavigationExtras omissions migration. In version 11, some unsupported properties were omitted from the `extras` parameter of the `Router.navigateByUrl` and `Router.createUrlTree` methods.

Replace deprecated library builder '@angular-devkit/build-ng-packagr'.

Updates the `initialNavigation` property for `RouterModule.forRoot`.

NavigationExtras.preserveQueryParams has been removed as of Angular version 11. This migration replaces any usages with the appropriate assignment of the queryParamsHandler key.

The default value for `relativeLinkResolution` is changing from 'legacy' to 'corrected'. This migration updates `RouterModule` configurations that use the default value to now specifically use 'legacy' to prevent breakages when updating.

Remove deprecated options from 'angular.json' that are no longer present in v11.

Update workspace dependencies to match a new v11 project.

`async` to `waitForAsync` migration. The `async` testing function has been renamed to `waitForAsync` to avoid confusion with the native `async` keyword.

Removes `canActivate` from a `Route` config when `redirectTo` is also present