diff --git a/CHANGELOG b/CHANGELOG
index e1bd974..dfb8732 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,8 @@
 proxy更新日志
+v4.2
+1.优化了内网穿透,避免了client意外下线,导致链接信息残留的问题.
+2.http代理增加了SNI支持,现在http(s)代理模式支持反向代理,支持http(s)透明代理.
+
 v4.1
 1.优化了http(s),socks5代理中的域名智能判断,如果是内网IP,直接走本地网络,提升浏览体验,
  同时优化了检查机制,判断更快.
diff --git a/services/mux_bridge.go b/services/mux_bridge.go
index c7e551c..153a341 100644
--- a/services/mux_bridge.go
+++ b/services/mux_bridge.go
@@ -89,6 +89,15 @@ func (s *MuxBridge) Start(args interface{}) (err error) {
 				return
 			}
 			s.clientControlConns.Set(key, session)
+			go func() {
+				for {
+					if session.IsClosed() {
+						s.clientControlConns.Remove(key)
+						break
+					}
+					time.Sleep(time.Second * 5)
+				}
+			}()
 			//log.Printf("set client session,key: %s", key)
 		}