# System.Net.Quic

``` diff
 namespace System.Net.Quic {
     public abstract class QuicConnectionOptions {
+        public TimeSpan HandshakeTimeout { get; set; }
+        public QuicReceiveWindowSizes InitialReceiveWindowSizes { get; set; }
+        public TimeSpan KeepAliveInterval { get; set; }
     }
+    public sealed class QuicReceiveWindowSizes {
+        public QuicReceiveWindowSizes();
+        public int Connection { get; set; }
+        public int LocallyInitiatedBidirectionalStream { get; set; }
+        public int RemotelyInitiatedBidirectionalStream { get; set; }
+        public int UnidirectionalStream { get; set; }
+    }
 }
```

