# Microsoft.AspNetCore.Server.Kestrel.Core

``` diff
 namespace Microsoft.AspNetCore.Server.Kestrel.Core {
     public class Http2Limits {
+        public TimeSpan KeepAlivePingDelay { get; set; }
-        public TimeSpan KeepAlivePingInterval { get; set; }

     }
     public class KestrelServer : IDisposable, IServer {
-        public KestrelServer(IOptions<KestrelServerOptions> options, IEnumerable<IConnectionListenerFactory> transportFactories, IEnumerable<IMultiplexedConnectionListenerFactory> multiplexedFactories, ILoggerFactory loggerFactory);

     }
     public class ListenOptions : IConnectionBuilder {
-        MultiplexedConnectionDelegate Microsoft.AspNetCore.Connections.IMultiplexedConnectionBuilder.Build();

-        IMultiplexedConnectionBuilder Microsoft.AspNetCore.Connections.IMultiplexedConnectionBuilder.Use(Func<MultiplexedConnectionDelegate, MultiplexedConnectionDelegate> middleware);

     }
 }
```

