8 files declare their use of EnhancerInterface in Drupal 10
- EntityBundleRouteEnhancer.php in core/lib/ Drupal/ Core/ Entity/ Enhancer/ EntityBundleRouteEnhancer.php 
- EntityRevisionRouteEnhancer.php in core/lib/ Drupal/ Core/ Routing/ Enhancer/ EntityRevisionRouteEnhancer.php 
- EntityRouteEnhancer.php in core/lib/ Drupal/ Core/ Entity/ Enhancer/ EntityRouteEnhancer.php 
- FormRouteEnhancer.php in core/lib/ Drupal/ Core/ Routing/ Enhancer/ FormRouteEnhancer.php 
- LayoutTempstoreRouteEnhancer.php in core/modules/ layout_builder/ src/ Routing/ LayoutTempstoreRouteEnhancer.php 
- ParamConversionEnhancer.php in core/lib/ Drupal/ Core/ Routing/ Enhancer/ ParamConversionEnhancer.php 
- ResourceVersionRouteEnhancer.php in core/modules/ jsonapi/ src/ Revisions/ ResourceVersionRouteEnhancer.php 
- RouteEnhancer.php in core/modules/ jsonapi/ src/ Routing/ RouteEnhancer.php 
