diff --git a/v2rayN/v2rayN/Forms/OptionSettingForm.cs b/v2rayN/v2rayN/Forms/OptionSettingForm.cs
index 9d6502ed..4c357b83 100644
--- a/v2rayN/v2rayN/Forms/OptionSettingForm.cs
+++ b/v2rayN/v2rayN/Forms/OptionSettingForm.cs
@@ -19,7 +19,9 @@ namespace v2rayN.Forms
         private void OptionSettingForm_Load(object sender, EventArgs e)
         {
             cmbSystemProxyAdvancedProtocol.Items.AddRange(Global.IEProxyProtocols.ToArray());
-           
+            cmbdomainStrategy4Freedom.Items.Clear();
+            cmbdomainStrategy4Freedom.Items.AddRange(Global.domainStrategy4Freedoms.ToArray());
+
             InitBase();
 
             InitKCP();
diff --git a/v2rayN/v2rayN/Global.cs b/v2rayN/v2rayN/Global.cs
index 1c8fe14c..47564336 100644
--- a/v2rayN/v2rayN/Global.cs
+++ b/v2rayN/v2rayN/Global.cs
@@ -211,12 +211,13 @@ namespace v2rayN
         public static readonly List<string> ssSecuritys = new List<string> { "aes-256-gcm", "aes-128-gcm", "chacha20-poly1305", "chacha20-ietf-poly1305", "none", "plain" };
         public static readonly List<string> ssSecuritysInSagerNet = new List<string> { "none", "2022-blake3-aes-128-gcm", "2022-blake3-aes-256-gcm", "2022-blake3-chacha20-poly1305", "aes-128-gcm", "aes-192-gcm", "aes-256-gcm", "chacha20-ietf-poly1305", "xchacha20-ietf-poly1305", "rc4", "rc4-md5", "aes-128-ctr", "aes-192-ctr", "aes-256-ctr", "aes-128-cfb", "aes-192-cfb", "aes-256-cfb", "aes-128-cfb8", "aes-192-cfb8", "aes-256-cfb8", "aes-128-ofb", "aes-192-ofb", "aes-256-ofb", "bf-cfb", "cast5-cfb", "des-cfb", "idea-cfb", "rc2-cfb", "seed-cfb", "camellia-128-cfb", "camellia-192-cfb", "camellia-256-cfb", "camellia-128-cfb8", "camellia-192-cfb8", "camellia-256-cfb8", "salsa20", "chacha20", "chacha20-ietf", "xchacha20" };
         public static readonly List<string> ssSecuritysInXray = new List<string> { "aes-256-gcm", "aes-128-gcm", "chacha20-poly1305", "chacha20-ietf-poly1305", "xchacha20-poly1305", "xchacha20-ietf-poly1305", "none", "plain", "2022-blake3-aes-128-gcm", "2022-blake3-aes-256-gcm", "2022-blake3-chacha20-poly1305" };
-        public static readonly List<string> xtlsFlows = new List<string> { "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443" };
+        public static readonly List<string> xtlsFlows = new List<string> { "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443", "xtls-rprx-vision", "xtls-rprx-vision-udp443" };
         public static readonly List<string> networks = new List<string> { "tcp", "kcp", "ws", "h2", "quic", "grpc" };
         public static readonly List<string> kcpHeaderTypes = new List<string> { "srtp", "utp", "wechat-video", "dtls", "wireguard" };
         public static readonly List<string> coreTypes = new List<string> { "v2fly", "SagerNet", "Xray", "v2fly_v5" };
         public static readonly List<string> domainMatchers = new List<string> { "linear", "mph", "" };
         public static readonly List<string> fingerprints = new List<string> { "chrome", "firefox", "safari", "randomized", "" };
+        public static readonly List<string> domainStrategy4Freedoms = new List<string> { "AsIs", "UseIP", "UseIPv4", "UseIPv6", "" };
         public const string GrpcgunMode = "gun";
         public const string GrpcmultiMode = "multi";
         public const string CheckMark = "√";