# Microsoft.AspNetCore.Builder

``` diff
 namespace Microsoft.AspNetCore.Builder {
-    public static class ConnectionsAppBuilderExtensions {
 {
-        public static IApplicationBuilder UseConnections(this IApplicationBuilder app, Action<ConnectionsRouteBuilder> configure);

-    }
     public static class MapExtensions {
+        public static IApplicationBuilder Map(this IApplicationBuilder app, PathString pathMatch, bool preserveMatchedPathSegment, Action<IApplicationBuilder> configuration);
     }
     public class RequestLocalizationOptions {
+        public bool ApplyCurrentCultureToResponseHeaders { get; set; }
     }
-    public static class SignalRAppBuilderExtensions {
 {
-        public static IApplicationBuilder UseSignalR(this IApplicationBuilder app, Action<HubRouteBuilder> configure);

-    }
 }
```

