# Microsoft.AspNetCore.Builder

``` diff
 namespace Microsoft.AspNetCore.Builder {
     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; }
     }
 }
```

