diff --git a/CHANGELOG.md b/CHANGELOG.md
index 826440f..266d618 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # 更新日志
 
+25w06b
+---
+- PRE-RELEASE: 此版本是改进验证版本,普通用户请勿使用; 
+- CHANGE: Remove `Conection: Upgrade` header, which is not currently supported by some web server configurations.
+
 25w06a
 ---
 - PRE-RELEASE: 此版本是改进验证版本,普通用户请勿使用; 
diff --git a/DEV-VERSION b/DEV-VERSION
index 874c799..0be6ebf 100644
--- a/DEV-VERSION
+++ b/DEV-VERSION
@@ -1 +1 @@
-25w06a
\ No newline at end of file
+25w06b
\ No newline at end of file
diff --git a/proxy/chunkreq.go b/proxy/chunkreq.go
index 9a56268..540ef77 100644
--- a/proxy/chunkreq.go
+++ b/proxy/chunkreq.go
@@ -35,10 +35,14 @@ func ChunkedProxyRequest(c *gin.Context, u string, cfg *config.Config, mode stri
 	}
 	setRequestHeaders(c, headReq)
 	// 删除Conection Upgrade头, 避免与HTTP/2冲突(检查是否存在Upgrade头)
-	if headReq.Header.Get("Connection") == "Upgrade" {
-		headReq.Header.Del("Connection")
-	}
+	removeWSHeader(headReq)
 	AuthPassThrough(c, cfg, headReq)
+	// 打印请求Header(for debug)
+	for key, values := range headReq.Header {
+		for _, value := range values {
+			fmt.Printf("%s: %s\n", key, value)
+		}
+	}
 
 	headResp, err := client.Do(headReq)
 	if err != nil {
@@ -70,10 +74,14 @@ func ChunkedProxyRequest(c *gin.Context, u string, cfg *config.Config, mode stri
 	req.Header.Set("Transfer-Encoding", "chunked") // 确保设置分块传输编码
 	setRequestHeaders(c, req)
 	// 删除Conection Upgrade头, 避免与HTTP/2冲突(检查是否存在Upgrade头)
-	if req.Header.Get("Connection") == "Upgrade" {
-		req.Header.Del("Connection")
-	}
+	removeWSHeader(req)
 	AuthPassThrough(c, cfg, req)
+	// 打印请求Header(for debug)
+	for key, values := range req.Header {
+		for _, value := range values {
+			fmt.Printf("%s: %s\n", key, value)
+		}
+	}
 
 	resp, err := client.Do(req)
 	if err != nil {
diff --git a/proxy/reqheader.go b/proxy/reqheader.go
index e51b261..07525d0 100644
--- a/proxy/reqheader.go
+++ b/proxy/reqheader.go
@@ -14,3 +14,8 @@ func setRequestHeaders(c *gin.Context, req *http.Request) {
 		}
 	}
 }
+
+func removeWSHeader(req *http.Request) {
+	req.Header.Del("Upgrade")
+	req.Header.Del("Connection")
+}