diff --git a/cli/README.md b/cli/README.md
index 050d996a..979bb669 100644
--- a/cli/README.md
+++ b/cli/README.md
@@ -82,7 +82,6 @@ That's it! Start coding with FREE AI models.
 9router                    # Start with default settings
 9router --port 8080        # Custom port
 9router --no-browser       # Don't open browser
-9router --skip-update      # Skip auto-update check
 9router --help             # Show all options
 ```
 
diff --git a/cli/cli.js b/cli/cli.js
index 6a0fc064..088d7e87 100755
--- a/cli/cli.js
+++ b/cli/cli.js
@@ -3,7 +3,6 @@
 const { spawn, exec, execSync } = require("child_process");
 const path = require("path");
 const fs = require("fs");
-const https = require("https");
 const net = require("net");
 const os = require("os");
 
@@ -26,42 +25,6 @@ function waitServerReady(port, { timeoutMs = 15000, intervalMs = 150 } = {}) {
   });
 }
 
-// Native spinner - no external dependency
-function createSpinner(text) {
-  const frames = ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"];
-  let i = 0;
-  let interval = null;
-  let currentText = text;
-  return {
-    start() {
-      if (process.stdout.isTTY) {
-        process.stdout.write(`\r${frames[0]} ${currentText}`);
-        interval = setInterval(() => {
-          process.stdout.write(`\r${frames[i++ % frames.length]} ${currentText}`);
-        }, 80);
-      }
-      return this;
-    },
-    stop() {
-      if (interval) {
-        clearInterval(interval);
-        interval = null;
-      }
-      if (process.stdout.isTTY) {
-        process.stdout.write("\r\x1b[K");
-      }
-    },
-    succeed(msg) {
-      this.stop();
-      console.log(`✅ ${msg}`);
-    },
-    fail(msg) {
-      this.stop();
-      console.log(`❌ ${msg}`);
-    }
-  };
-}
-
 const pkg = require("./package.json");
 const { ensureSqliteRuntime, buildEnvWithRuntime } = require("./hooks/sqliteRuntime");
 const { ensureTrayRuntime } = require("./hooks/trayRuntime");
@@ -77,7 +40,6 @@ try { ensureTrayRuntime({ silent: true }); } catch {}
 
 // Configuration constants
 const APP_NAME = pkg.name; // Use from package.json
-const INSTALL_CMD_LATEST = `npm i -g ${APP_NAME}@latest --prefer-online`;
 
 const DEFAULT_PORT = 20128;
 const DEFAULT_HOST = "0.0.0.0";
@@ -106,7 +68,6 @@ const PROCESS_IDENTIFIERS = [
 let port = DEFAULT_PORT;
 let host = DEFAULT_HOST;
 let noBrowser = false;
-let skipUpdate = false;
 let showLog = false;
 let trayMode = false;
 
@@ -121,8 +82,6 @@ for (let i = 0; i < args.length; i++) {
     noBrowser = true;
   } else if (args[i] === "--log" || args[i] === "-l") {
     showLog = true;
-  } else if (args[i] === "--skip-update") {
-    skipUpdate = true;
   } else if (args[i] === "--tray" || args[i] === "-t") {
     trayMode = true;
     process.env.TRAY_MODE = "1";
@@ -136,7 +95,6 @@ Options:
   -n, --no-browser    Don't open browser automatically
   -l, --log           Show server logs (default: hidden)
   -t, --tray          Run in system tray mode (background)
-  --skip-update       Skip auto-update check
   -h, --help          Show this help message
   -v, --version       Show version
 `);
@@ -147,26 +105,9 @@ Options:
   }
 }
 
-// Auto-relaunch after update: detached process has no TTY → fallback to tray
-if (skipUpdate && !trayMode && !process.stdin.isTTY) {
-  trayMode = true;
-  process.env.TRAY_MODE = "1";
-}
-
 // Always use Node.js runtime with absolute path
 const RUNTIME = process.execPath;
 
-// Compare semver versions: returns 1 if a > b, -1 if a < b, 0 if equal
-function compareVersions(a, b) {
-  const partsA = a.split(".").map(Number);
-  const partsB = b.split(".").map(Number);
-  for (let i = 0; i < 3; i++) {
-    if (partsA[i] > partsB[i]) return 1;
-    if (partsA[i] < partsB[i]) return -1;
-  }
-  return 0;
-}
-
 // Get app data dir (matches app/src/lib/dataDir.js convention)
 function getAppDataDir() {
   return process.platform === "win32"
@@ -437,55 +378,6 @@ function isRestrictedEnvironment() {
   return null;
 }
 
-// Check if new version available, return latest version or null
-function checkForUpdate() {
-  return new Promise((resolve) => {
-    if (skipUpdate) {
-      resolve(null);
-      return;
-    }
-
-    const spinner = createSpinner("Checking for updates...").start();
-    let resolved = false;
-
-    const safetyTimeout = setTimeout(() => {
-      if (!resolved) {
-        resolved = true;
-        spinner.stop();
-        resolve(null);
-      }
-    }, 8000);
-
-    const done = (version) => {
-      if (resolved) return;
-      resolved = true;
-      clearTimeout(safetyTimeout);
-      spinner.stop();
-      resolve(version);
-    };
-
-    const req = https.get(`https://registry.npmjs.org/${pkg.name}/latest`, { timeout: 3000 }, (res) => {
-      let data = "";
-      res.on("data", chunk => data += chunk);
-      res.on("end", () => {
-        try {
-          const latest = JSON.parse(data);
-          if (latest.version && compareVersions(latest.version, pkg.version) > 0) {
-            done(latest.version);
-          } else {
-            done(null);
-          }
-        } catch (e) {
-          done(null);
-        }
-      });
-    });
-
-    req.on("error", () => done(null));
-    req.on("timeout", () => { req.destroy(); done(null); });
-  });
-}
-
 // Open browser
 function openBrowser(url) {
   const platform = process.platform;
@@ -520,14 +412,12 @@ if (!fs.existsSync(serverPath)) {
   process.exit(1);
 }
 
-// Start server immediately; run update check in parallel (not on the critical path).
-const updatePromise = checkForUpdate();
 killAllAppProcesses(port)
   .then(() => killProcessOnPort(port))
-  .then(() => startServer(updatePromise));
+  .then(() => startServer());
 
 // Show interface selection menu
-async function showInterfaceMenu(latestVersion) {
+async function showInterfaceMenu() {
   const { selectMenu } = require("./src/cli/utils/input");
   const { clearScreen } = require("./src/cli/utils/display");
   const { getEndpoint } = require("./src/cli/utils/endpoint");
@@ -549,10 +439,6 @@ async function showInterfaceMenu(latestVersion) {
 
   const menuItems = [];
 
-  if (latestVersion) {
-    menuItems.push({ label: `Update to v${latestVersion} (current: v${pkg.version})`, icon: "⬆" });
-  }
-
   menuItems.push(
     { label: "Web UI (Open in Browser)", icon: "🌐" },
     { label: "Terminal UI (Interactive CLI)", icon: "💻" },
@@ -562,21 +448,16 @@ async function showInterfaceMenu(latestVersion) {
 
   const selected = await selectMenu(`Choose Interface (v${pkg.version})`, menuItems, 0, subtitle);
 
-  const offset = latestVersion ? 1 : 0;
-
-  if (latestVersion && selected === 0) return "update";
-  if (selected === offset) return "web";
-  if (selected === offset + 1) return "terminal";
-  if (selected === offset + 2) return "hide";
+  if (selected === 0) return "web";
+  if (selected === 1) return "terminal";
+  if (selected === 2) return "hide";
   return "exit";
 }
 
 const MAX_RESTARTS = 2;
 const RESTART_RESET_MS = 30000; // Reset counter if alive > 30s
 
-function startServer(updatePromise) {
-  // Accept either a Promise (parallel update check) or a resolved value.
-  const latestVersionPromise = Promise.resolve(updatePromise);
+function startServer() {
   const displayHost = getDisplayHost();
   const url = `http://${displayHost}:${port}/dashboard`;
   // Surface real network exposure when bound to all interfaces (default 0.0.0.0).
@@ -708,28 +589,14 @@ function startServer(updatePromise) {
 
   // Wait for server to be ready, then show interface menu loop + tray
   waitServerReady(port).then(async () => {
-    // Resolve parallel update check (already running); don't block server start on it.
-    const latestVersion = await latestVersionPromise;
     // Start tray icon alongside TUI
     initTrayIcon();
 
     try {
       while (true) {
-        const choice = await showInterfaceMenu(latestVersion);
+        const choice = await showInterfaceMenu();
 
-        if (choice === "update") {
-          isShuttingDown = true;
-          const { clearScreen } = require("./src/cli/utils/display");
-          clearScreen();
-          console.log(`\n⬆  Update v${pkg.version} → v${latestVersion}\n`);
-          console.log(`Run this after exit:\n`);
-          console.log(`   \x1b[33m${INSTALL_CMD_LATEST}\x1b[0m\n`);
-          cleanup();
-          await killAllAppProcesses(port);
-          await killProcessOnPort(port);
-          setTimeout(() => process.exit(0), 200);
-          return;
-        } else if (choice === "web") {
+        if (choice === "web") {
           openBrowser(url);
           // Wait for user to come back
           const { pause } = require("./src/cli/utils/input");
@@ -767,7 +634,7 @@ function startServer(updatePromise) {
           // Windows/Linux: spawn detached bgProcess (systray works fine in child)
           console.log(`\n⏳ Starting background process... (tray icon will appear in ~3s)`);
 
-          const bgProcess = spawn(process.execPath, [__filename, "--tray", "--skip-update", "-p", port.toString()], {
+          const bgProcess = spawn(process.execPath, [__filename, "--tray", "-p", port.toString()], {
             detached: true,
             stdio: "ignore",
             windowsHide: true,
diff --git a/cli/scripts/build-cli.js b/cli/scripts/build-cli.js
index a1b28c5f..5483673d 100644
--- a/cli/scripts/build-cli.js
+++ b/cli/scripts/build-cli.js
@@ -248,17 +248,6 @@ if (fs.existsSync(mitmSrc)) {
   console.log("⏭️  No MITM files found\n");
 }
 
-// Step 7b: Copy standalone updater (headless Node process for install progress)
-console.log("7️⃣ b Copying updater files...");
-const updaterSrc = path.join(appDir, "src", "lib", "updater");
-const updaterDest = path.join(cliAppDir, "src", "lib", "updater");
-if (fs.existsSync(updaterSrc)) {
-  copyRecursive(updaterSrc, updaterDest);
-  console.log("✅ Copied updater files\n");
-} else {
-  console.log("⏭️  No updater files found\n");
-}
-
 // Step 8: Build MITM server (config driven - see app/cli/scripts/buildMitm.js)
 console.log("8️⃣  Building MITM server...");
 try {
diff --git a/cli/scripts/buildMitm.js b/cli/scripts/buildMitm.js
index e47f593a..55cd24f0 100644
--- a/cli/scripts/buildMitm.js
+++ b/cli/scripts/buildMitm.js
@@ -14,9 +14,7 @@ const cliDir = path.resolve(__dirname, "..");
 const appDir = path.resolve(cliDir, "..");
 const cliAppDir = process.env.NINEROUTER_CLI_APP_DIR || path.join(cliDir, "app");
 const cliMitmDir = path.join(cliAppDir, "src", "mitm");
-// Bundle everything — no externals. This keeps MITM runtime self-contained so
-// it can be copied to DATA_DIR/runtime/ and spawned from there (escapes
-// node_modules file locks that block `npm i -g 9router@latest` on Windows).
+// Bundle everything — no externals. This keeps the MITM runtime self-contained.
 const EXTERNALS = [];
 const ENTRIES = ["server.js"];
 
diff --git a/cli/src/cli/tray/autostart.js b/cli/src/cli/tray/autostart.js
index 4ab93cf2..f075847f 100644
--- a/cli/src/cli/tray/autostart.js
+++ b/cli/src/cli/tray/autostart.js
@@ -170,7 +170,6 @@ function enableMacOS(cliPath) {
         <string>${nodePath}</string>
         <string>${routerScript}</string>
         <string>--tray</string>
-        <string>--skip-update</string>
     </array>
     <key>EnvironmentVariables</key>
     <dict>
@@ -249,7 +248,7 @@ function enableWindows(cliPath) {
   // Run node + cli.js directly, hidden window. Avoids the fragile
   // `9router.cmd` lookup that depended on the npm prefix path.
   const vbsContent = `Set WshShell = CreateObject("WScript.Shell")
-WshShell.Run """${nodePath}"" ""${routerScript}"" --tray --skip-update", 0, False
+WshShell.Run """${nodePath}"" ""${routerScript}"" --tray", 0, False
 `;
   fs.writeFileSync(vbsPath, vbsContent);
   return true;
@@ -282,7 +281,7 @@ function enableLinux(cliPath) {
 Type=Application
 Name=9Router
 Comment=9Router API Proxy
-Exec=${nodePath} ${routerScript} --tray --skip-update
+Exec=${nodePath} ${routerScript} --tray
 Hidden=false
 NoDisplay=false
 X-GNOME-Autostart-enabled=true
diff --git a/src/app/(dashboard)/dashboard/cli-tools/components/BaseUrlSelect.js b/src/app/(dashboard)/dashboard/cli-tools/components/BaseUrlSelect.js
index 58482a9b..36f65006 100644
--- a/src/app/(dashboard)/dashboard/cli-tools/components/BaseUrlSelect.js
+++ b/src/app/(dashboard)/dashboard/cli-tools/components/BaseUrlSelect.js
@@ -1,7 +1,7 @@
 "use client";
 
 import { useEffect, useMemo, useRef, useState } from "react";
-import { UPDATER_CONFIG } from "@/shared/constants/config";
+import { APP_CONFIG } from "@/shared/constants/config";
 
 const STORAGE_KEY = "9router.cliToolEndpointPresets";
 const CUSTOM_VALUE = "__custom__";
@@ -33,7 +33,7 @@ const buildOptions = ({ requiresExternalUrl, tunnelEnabled, tunnelPublicUrl, tai
   const opts = [];
   const wrap = (url) => (withV1 ? ensureV1(url) : (url || "").replace(/\/+$/, ""));
   if (!requiresExternalUrl) {
-    const localUrl = wrap(`http://127.0.0.1:${UPDATER_CONFIG.appPort}`);
+    const localUrl = wrap(`http://127.0.0.1:${APP_CONFIG.defaultPort}`);
     opts.push({ value: "local", label: localUrl, url: localUrl });
   }
   if (tunnelEnabled && tunnelPublicUrl) {
diff --git a/src/app/(dashboard)/dashboard/profile/page.js b/src/app/(dashboard)/dashboard/profile/page.js
index e1d770ae..f6fa6df7 100644
--- a/src/app/(dashboard)/dashboard/profile/page.js
+++ b/src/app/(dashboard)/dashboard/profile/page.js
@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useRef } from "react";
 import { Card, Button, Toggle, Input } from "@/shared/components";
-import Modal, { ConfirmModal } from "@/shared/components/Modal";
+import Modal from "@/shared/components/Modal";
 import LanguageSwitcher from "@/shared/components/LanguageSwitcher";
 import { useTheme } from "@/shared/hooks/useTheme";
 import { cn } from "@/shared/utils/cn";
@@ -29,8 +29,6 @@ export default function ProfilePage() {
   const fetchCurrentUser = useUserStore((state) => state.fetchCurrentUser);
   const [locale, setLocale] = useState("en");
   const [langOpen, setLangOpen] = useState(false);
-  const [shutdownOpen, setShutdownOpen] = useState(false);
-  const [isShuttingDown, setIsShuttingDown] = useState(false);
   const [settings, setSettings] = useState({ fallbackStrategy: "fill-first" });
   const [loading, setLoading] = useState(true);
   const [passwords, setPasswords] = useState({ current: "", new: "", confirm: "" });
@@ -257,17 +255,6 @@ export default function ProfilePage() {
     else if (mode === "import") await runImportDatabase(password);
   };
 
-  const handleShutdown = async () => {
-    setIsShuttingDown(true);
-    try {
-      await fetch("/api/version/shutdown", { method: "POST" });
-    } catch (e) {
-      // Expected to fail as server shuts down; ignore error
-    }
-    setIsShuttingDown(false);
-    setShutdownOpen(false);
-  };
-
   const handleLogout = async () => {
     try {
       const res = await fetch("/api/auth/logout", { method: "POST" });
@@ -492,15 +479,6 @@ export default function ProfilePage() {
 
         {/* Account actions */}
         <div className="flex flex-col sm:flex-row gap-2">
-          <Button
-            variant="outline"
-            fullWidth
-            icon="power_settings_new"
-            onClick={() => setShutdownOpen(true)}
-            className="text-red-500 border-red-200 hover:bg-red-50 hover:border-red-300"
-          >
-            Shutdown
-          </Button>
           <Button
             variant="outline"
             fullWidth
@@ -526,17 +504,6 @@ export default function ProfilePage() {
           setLocale(next);
         }}
       />
-      <ConfirmModal
-        isOpen={shutdownOpen}
-        onClose={() => setShutdownOpen(false)}
-        onConfirm={handleShutdown}
-        title="Close Proxy"
-        message="Are you sure you want to close the proxy server?"
-        confirmText="Close"
-        cancelText="Cancel"
-        variant="danger"
-        loading={isShuttingDown}
-      />
 
       <Modal
         isOpen={dbAuth.open}
diff --git a/src/app/api/models/test/ping.js b/src/app/api/models/test/ping.js
index f7ea92ac..a318a403 100644
--- a/src/app/api/models/test/ping.js
+++ b/src/app/api/models/test/ping.js
@@ -1,5 +1,5 @@
 import { getApiKeys } from "@/lib/localDb";
-import { UPDATER_CONFIG } from "@/shared/constants/config";
+import { APP_CONFIG } from "@/shared/constants/config";
 import { getConsistentMachineId } from "@/shared/utils/machineId";
 
 const CLI_TOKEN_SALT = "9r-cli-auth";
@@ -50,7 +50,7 @@ async function getInternalHeaders() {
   return headers;
 }
 
-export async function pingModelByKind(model, kind, baseUrl = `http://127.0.0.1:${process.env.PORT || UPDATER_CONFIG.appPort}`) {
+export async function pingModelByKind(model, kind, baseUrl = `http://127.0.0.1:${process.env.PORT || APP_CONFIG.defaultPort}`) {
   const headers = await getInternalHeaders();
   const start = Date.now();
 
diff --git a/src/app/api/providers/[id]/test-models/route.js b/src/app/api/providers/[id]/test-models/route.js
index 235827aa..f953d45e 100644
--- a/src/app/api/providers/[id]/test-models/route.js
+++ b/src/app/api/providers/[id]/test-models/route.js
@@ -2,7 +2,7 @@ import { NextResponse } from "next/server";
 import { getProviderConnectionById } from "@/lib/localDb";
 import { getProviderModels, PROVIDER_ID_TO_ALIAS } from "open-sse/config/providerModels.js";
 import { isOpenAICompatibleProvider, isAnthropicCompatibleProvider } from "@/shared/constants/providers";
-import { UPDATER_CONFIG } from "@/shared/constants/config";
+import { APP_CONFIG } from "@/shared/constants/config";
 import { pingModelByKind } from "@/app/api/models/test/ping";
 import { getProviderConnectionAccess } from "@/lib/providers/connectionAccess";
 
@@ -26,7 +26,7 @@ export async function POST(request, { params }) {
 
     let models = getProviderModels(alias);
 
-    const baseUrl = `http://127.0.0.1:${process.env.PORT || UPDATER_CONFIG.appPort}`;
+    const baseUrl = `http://127.0.0.1:${process.env.PORT || APP_CONFIG.defaultPort}`;
 
     // Compatible providers: fetch live model list
     if (isCompatible && models.length === 0) {
diff --git a/src/app/api/version/route.js b/src/app/api/version/route.js
deleted file mode 100644
index 5635f9ae..00000000
--- a/src/app/api/version/route.js
+++ /dev/null
@@ -1,61 +0,0 @@
-import https from "https";
-import pkg from "../../../../package.json" with { type: "json" };
-
-const NPM_PACKAGE_NAME = "9router";
-const VERSION_CACHE_TTL_MS = 3600000; // cache npm latest lookup for 1h
-
-// Survive hot reload; one cache per process
-const versionCache = (global.__npmVersionCache ??= { value: null, fetchedAt: 0 });
-
-// Fetch latest version from npm registry
-function fetchLatestVersion() {
-  return new Promise((resolve) => {
-    const req = https.get(
-      `https://registry.npmjs.org/${NPM_PACKAGE_NAME}/latest`,
-      { timeout: 4000 },
-      (res) => {
-        let data = "";
-        res.on("data", (chunk) => (data += chunk));
-        res.on("end", () => {
-          try {
-            resolve(JSON.parse(data).version || null);
-          } catch {
-            resolve(null);
-          }
-        });
-      }
-    );
-    req.on("error", () => resolve(null));
-    req.on("timeout", () => { req.destroy(); resolve(null); });
-  });
-}
-
-function compareVersions(a, b) {
-  const pa = a.split(".").map(Number);
-  const pb = b.split(".").map(Number);
-  for (let i = 0; i < 3; i++) {
-    if (pa[i] > pb[i]) return 1;
-    if (pa[i] < pb[i]) return -1;
-  }
-  return 0;
-}
-
-async function getLatestVersionCached() {
-  if (versionCache.value && Date.now() - versionCache.fetchedAt < VERSION_CACHE_TTL_MS) {
-    return versionCache.value;
-  }
-  const latest = await fetchLatestVersion();
-  if (latest) {
-    versionCache.value = latest;
-    versionCache.fetchedAt = Date.now();
-  }
-  return latest;
-}
-
-export async function GET() {
-  const latestVersion = await getLatestVersionCached();
-  const currentVersion = pkg.version;
-  const hasUpdate = latestVersion ? compareVersions(latestVersion, currentVersion) > 0 : false;
-
-  return Response.json({ currentVersion, latestVersion, hasUpdate });
-}
diff --git a/src/app/api/version/shutdown/route.js b/src/app/api/version/shutdown/route.js
deleted file mode 100644
index bb1cd9dc..00000000
--- a/src/app/api/version/shutdown/route.js
+++ /dev/null
@@ -1,15 +0,0 @@
-import { NextResponse } from "next/server";
-import { killAppProcesses } from "@/lib/appUpdater";
-
-// Shutdown app to release file locks for manual update
-export async function POST() {
-  try {
-    await killAppProcesses();
-  } catch { /* best effort */ }
-
-  const response = NextResponse.json({ success: true, message: "Shutting down for manual update..." });
-
-  setTimeout(() => process.exit(0), 500);
-
-  return response;
-}
diff --git a/src/app/api/version/update/route.js b/src/app/api/version/update/route.js
deleted file mode 100644
index e35de795..00000000
--- a/src/app/api/version/update/route.js
+++ /dev/null
@@ -1,21 +0,0 @@
-import { NextResponse } from "next/server";
-import { killAppProcesses, spawnUpdaterAndExit } from "@/lib/appUpdater";
-
-export async function POST() {
-  if (process.env.NODE_ENV !== "production") {
-    return NextResponse.json(
-      { success: false, message: "Update is only available in production build (9router CLI)" },
-      { status: 403 }
-    );
-  }
-
-  try {
-    // Kill sibling processes (cloudflared, MITM, stray next-server) to release file locks on Windows
-    await killAppProcesses();
-  } catch { /* best effort */ }
-
-  // Schedule detached updater then exit current server process
-  spawnUpdaterAndExit();
-
-  return NextResponse.json({ success: true, message: "Updater started. This app will exit shortly." });
-}
diff --git a/src/dashboardGuard.js b/src/dashboardGuard.js
index e66b4cc4..b0b8ecfd 100644
--- a/src/dashboardGuard.js
+++ b/src/dashboardGuard.js
@@ -27,7 +27,6 @@ const PUBLIC_API_PATHS = [
   "/api/auth/logout",
   "/api/auth/status",
   "/api/auth/oidc",
-  "/api/version",
 ];
 
 // Public top-level prefixes (LLM API endpoints with their own API key auth).
@@ -37,8 +36,6 @@ const PUBLIC_PREFIXES = ["/v1", "/v1beta", "/api/v1", "/api/v1beta", "/codex"];
 const ALWAYS_PROTECTED = [
   "/api/shutdown",
   "/api/settings/database",
-  "/api/version/shutdown",
-  "/api/version/update",
   "/api/oauth/cursor/auto-import",
   "/api/oauth/kiro/auto-import",
 ];
diff --git a/src/lib/appUpdater.js b/src/lib/appUpdater.js
deleted file mode 100644
index e1e270ce..00000000
--- a/src/lib/appUpdater.js
+++ /dev/null
@@ -1,200 +0,0 @@
-import { spawn, execSync } from "child_process";
-import path from "path";
-import fs from "fs";
-import os from "os";
-import { UPDATER_CONFIG } from "@/shared/constants/config";
-
-const KILL_TIMEOUT_MS = 5000;
-const PROCESS_WAIT_MS = 1500;
-
-// Kill MITM server by PID file (MITM may run as admin/sudo)
-function killMitmByPidFile() {
-  try {
-    const mitmPidFile = path.join(
-      process.platform === "win32"
-        ? path.join(process.env.APPDATA || "", "9router")
-        : path.join(os.homedir(), ".9router"),
-      "mitm",
-      ".mitm.pid"
-    );
-    if (!fs.existsSync(mitmPidFile)) return;
-    const pid = parseInt(fs.readFileSync(mitmPidFile, "utf8").trim(), 10);
-    if (!pid) return;
-
-    if (process.platform === "win32") {
-      // taskkill first (works if same user); fallback to PowerShell Stop-Process which can kill admin process if our token allows
-      try { execSync(`taskkill /F /T /PID ${pid}`, { stdio: "ignore", windowsHide: true, timeout: 3000 }); } catch {
-        try { execSync(`powershell -NonInteractive -WindowStyle Hidden -Command "Stop-Process -Id ${pid} -Force"`, { stdio: "ignore", windowsHide: true, timeout: 3000 }); } catch { /* best effort */ }
-      }
-    } else {
-      try {
-        execSync(`sudo -n kill -9 ${pid} 2>/dev/null`, { stdio: "ignore", timeout: 3000 });
-      } catch {
-        try { process.kill(pid, "SIGKILL"); } catch { /* best effort */ }
-      }
-    }
-    try { fs.unlinkSync(mitmPidFile); } catch { /* best effort */ }
-  } catch { /* best effort */ }
-}
-
-// Collect PIDs of all 9router-related processes (excluding current)
-function collectAppPids() {
-  const pids = [];
-  const platform = process.platform;
-
-  if (platform === "win32") {
-    try {
-      const psCmd = `powershell -NonInteractive -WindowStyle Hidden -Command "Get-WmiObject Win32_Process -Filter 'Name=\\"node.exe\\"' | Select-Object ProcessId,CommandLine | ConvertTo-Csv -NoTypeInformation"`;
-      const output = execSync(psCmd, { encoding: "utf8", windowsHide: true, timeout: KILL_TIMEOUT_MS });
-      const lines = output.split("\n").slice(1).filter(l => l.trim());
-      lines.forEach(line => {
-        const lower = line.toLowerCase();
-        // Match anything running from 9router install dir or wrapper cli.js
-        const isAppProcess = lower.includes("9router") ||
-          lower.includes("next-server") ||
-          lower.includes("\\bin\\app\\") ||
-          lower.includes("/bin/app/") ||
-          lower.includes("cli.js");
-        if (isAppProcess) {
-          const match = line.match(/^"(\d+)"/);
-          if (match && match[1] && match[1] !== process.pid.toString()) pids.push(match[1]);
-        }
-      });
-    } catch { /* no processes */ }
-
-    // Kill cloudflared + tray binaries (hold app dir lock)
-    for (const procName of ["cloudflared", "tray_windows_release"]) {
-      try {
-        const cmd = `powershell -NonInteractive -WindowStyle Hidden -Command "Get-Process ${procName} -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Id"`;
-        const out = execSync(cmd, { encoding: "utf8", windowsHide: true, timeout: KILL_TIMEOUT_MS });
-        out.split("\n").forEach(l => {
-          const pid = l.trim();
-          if (pid && !isNaN(pid)) pids.push(pid);
-        });
-      } catch { /* not running */ }
-    }
-  } else {
-    try {
-      const output = execSync("ps aux 2>/dev/null", { encoding: "utf8", timeout: KILL_TIMEOUT_MS });
-      output.split("\n").forEach(line => {
-        const isAppProcess = line.includes("9router") ||
-          line.includes("next-server") ||
-          line.includes("cloudflared") ||
-          line.includes("/bin/app/") ||
-          line.includes("tray_darwin") ||
-          line.includes("tray_linux");
-        if (isAppProcess) {
-          const parts = line.trim().split(/\s+/);
-          const pid = parts[1];
-          if (pid && !isNaN(pid) && pid !== process.pid.toString()) pids.push(pid);
-        }
-      });
-    } catch { /* no processes */ }
-  }
-
-  return pids;
-}
-
-// Copy updater.js into DATA_DIR so npm -g can overwrite node_modules safely
-function getDataDir() {
-  if (process.env.DATA_DIR) return process.env.DATA_DIR;
-  if (process.platform === "win32") {
-    return path.join(process.env.APPDATA || path.join(os.homedir(), "AppData", "Roaming"), "9router");
-  }
-  return path.join(os.homedir(), ".9router");
-}
-
-function resolveBundledUpdaterPath() {
-  if (process.env.UPDATER_SCRIPT_PATH && fs.existsSync(process.env.UPDATER_SCRIPT_PATH)) {
-    return process.env.UPDATER_SCRIPT_PATH;
-  }
-  // Production standalone: cwd is binAppDir (see bin/cli.js)
-  // Dev: cwd is app/
-  const fromCwd = path.join(process.cwd(), "src", "lib", "updater", "updater.js");
-  if (fs.existsSync(fromCwd)) return fromCwd;
-  const fromParent = path.join(process.cwd(), "..", "src", "lib", "updater", "updater.js");
-  if (fs.existsSync(fromParent)) return fromParent;
-  return fromCwd;
-}
-
-function ensureRuntimeUpdater(bundledPath) {
-  try {
-    if (!bundledPath || !fs.existsSync(bundledPath)) return bundledPath;
-    const runtimeDir = path.join(getDataDir(), "runtime", "updater");
-    const runtimePath = path.join(runtimeDir, "updater.js");
-    if (fs.existsSync(runtimePath)) {
-      try {
-        if (fs.statSync(bundledPath).size === fs.statSync(runtimePath).size) return runtimePath;
-      } catch { /* recopy */ }
-    }
-    fs.mkdirSync(runtimeDir, { recursive: true });
-    fs.copyFileSync(bundledPath, runtimePath);
-    return runtimePath;
-  } catch {
-    return bundledPath;
-  }
-}
-
-// Kill all app-related processes to release file locks (esp. on Windows)
-export async function killAppProcesses() {
-  killMitmByPidFile();
-  const pids = collectAppPids();
-  const platform = process.platform;
-
-  pids.forEach(pid => {
-    try {
-      if (platform === "win32") {
-        execSync(`taskkill /F /PID ${pid} 2>nul`, { stdio: "ignore", shell: true, windowsHide: true, timeout: 3000 });
-      } else {
-        execSync(`kill -9 ${pid} 2>/dev/null`, { stdio: "ignore", timeout: 3000 });
-      }
-    } catch { /* already dead */ }
-  });
-
-  if (pids.length > 0) {
-    await new Promise(r => setTimeout(r, PROCESS_WAIT_MS));
-  }
-}
-
-// Resolve npx/9router binary to relaunch after update (cross-platform)
-function resolveRelaunchCommand() {
-  const isWin = process.platform === "win32";
-  // Prefer `npx 9router` — works regardless of global bin path changes after npm i -g
-  const npx = isWin ? "npx.cmd" : "npx";
-  return { cmd: npx, args: [UPDATER_CONFIG.npmPackageName] };
-}
-
-// Spawn detached headless updater (Node process) then exit current server
-export function spawnUpdaterAndExit(packageName = UPDATER_CONFIG.npmPackageName) {
-  const updaterPath = ensureRuntimeUpdater(resolveBundledUpdaterPath());
-  const isTray = process.env.TRAY_MODE === "1";
-  const relaunch = resolveRelaunchCommand();
-  // Relaunch matching original env: tray stays tray, foreground stays foreground
-  const relaunchArgs = isTray
-    ? [...relaunch.args, "--tray", "--skip-update"]
-    : [...relaunch.args, "--skip-update"];
-
-  spawn(process.execPath, [updaterPath], {
-    detached: true,
-    stdio: "ignore",
-    windowsHide: true,
-    env: {
-      ...process.env,
-      UPDATER_PKG_NAME: packageName,
-      UPDATER_PORT: String(UPDATER_CONFIG.statusPort),
-      UPDATER_TAIL_LINES: String(UPDATER_CONFIG.statusLogTailLines),
-      UPDATER_RETRIES: String(UPDATER_CONFIG.installRetries),
-      UPDATER_RETRY_DELAY_MS: String(UPDATER_CONFIG.installRetryDelayMs),
-      UPDATER_LINGER_MS: String(UPDATER_CONFIG.lingerAfterDoneMs),
-      UPDATER_WAIT_MIN_MS: String(UPDATER_CONFIG.waitForExitMinMs),
-      UPDATER_WAIT_MAX_MS: String(UPDATER_CONFIG.waitForExitMaxMs),
-      UPDATER_WAIT_CHECK_MS: String(UPDATER_CONFIG.waitForExitCheckMs),
-      UPDATER_APP_PORT: String(UPDATER_CONFIG.appPort),
-      UPDATER_RELAUNCH: "1",
-      UPDATER_RELAUNCH_CMD: relaunch.cmd,
-      UPDATER_RELAUNCH_ARGS: JSON.stringify(relaunchArgs),
-    },
-  }).unref();
-
-  setTimeout(() => process.exit(0), UPDATER_CONFIG.exitDelayMs);
-}
diff --git a/src/lib/updater/updater.js b/src/lib/updater/updater.js
deleted file mode 100644
index 0ad48af8..00000000
--- a/src/lib/updater/updater.js
+++ /dev/null
@@ -1,235 +0,0 @@
-// Standalone detached updater process.
-// Spawns `npm i -g <pkg>@latest`, exposes progress via tiny HTTP server.
-// Survives after parent Next server exits (detached + unref by spawner).
-
-const { spawn } = require("child_process");
-const http = require("http");
-const net = require("net");
-const path = require("path");
-const fs = require("fs");
-const os = require("os");
-
-const packageName = process.env.UPDATER_PKG_NAME || "9router";
-const port = parseInt(process.env.UPDATER_PORT || "20129", 10);
-const tailLines = parseInt(process.env.UPDATER_TAIL_LINES || "8", 10);
-const maxRetries = parseInt(process.env.UPDATER_RETRIES || "3", 10);
-const retryDelayMs = parseInt(process.env.UPDATER_RETRY_DELAY_MS || "5000", 10);
-const lingerMs = parseInt(process.env.UPDATER_LINGER_MS || "30000", 10);
-const waitMinMs = parseInt(process.env.UPDATER_WAIT_MIN_MS || "3000", 10);
-const waitMaxMs = parseInt(process.env.UPDATER_WAIT_MAX_MS || "15000", 10);
-const waitCheckMs = parseInt(process.env.UPDATER_WAIT_CHECK_MS || "500", 10);
-const appPort = parseInt(process.env.UPDATER_APP_PORT || "20128", 10);
-
-// Data directory (match mitm/paths.js logic)
-function getDataDir() {
-  if (process.env.DATA_DIR) return process.env.DATA_DIR;
-  if (process.platform === "win32") {
-    return path.join(process.env.APPDATA || path.join(os.homedir(), "AppData", "Roaming"), "9router");
-  }
-  return path.join(os.homedir(), ".9router");
-}
-const updateDir = path.join(getDataDir(), "update");
-try { fs.mkdirSync(updateDir, { recursive: true }); } catch { /* best effort */ }
-const statusFile = path.join(updateDir, "status.json");
-const logFile = path.join(updateDir, "install.log");
-
-const state = {
-  phase: "starting",
-  packageName,
-  startedAt: Date.now(),
-  finishedAt: null,
-  attempt: 0,
-  maxRetries,
-  done: false,
-  success: false,
-  exitCode: null,
-  error: null,
-  logTail: [],
-};
-
-function pushLog(line) {
-  const trimmed = line.replace(/\r?\n$/, "");
-  if (!trimmed) return;
-  state.logTail.push(trimmed);
-  if (state.logTail.length > tailLines) state.logTail = state.logTail.slice(-tailLines);
-  try { fs.appendFileSync(logFile, `${trimmed}\n`); } catch { /* best effort */ }
-}
-
-function persistStatus() {
-  try { fs.writeFileSync(statusFile, JSON.stringify(state, null, 2)); } catch { /* best effort */ }
-}
-
-function setPhase(phase) {
-  state.phase = phase;
-  persistStatus();
-}
-
-// HTTP server exposing status (browser polls this while Next server is dead)
-const server = http.createServer((req, res) => {
-  res.setHeader("Access-Control-Allow-Origin", "*");
-  res.setHeader("Cache-Control", "no-store");
-  if (req.url === "/update/status" || req.url === "/") {
-    res.setHeader("Content-Type", "application/json");
-    res.end(JSON.stringify(state));
-    return;
-  }
-  res.statusCode = 404;
-  res.end("not found");
-});
-
-server.on("error", (e) => {
-  state.error = `status server error: ${e.message}`;
-  persistStatus();
-});
-
-server.listen(port, "127.0.0.1", () => {
-  persistStatus();
-  waitForAppExit().then(runInstall);
-});
-
-// Check if app port is still being listened on (= app server still alive)
-function isAppPortBusy() {
-  return new Promise((resolve) => {
-    const socket = new net.Socket();
-    const done = (busy) => {
-      socket.destroy();
-      resolve(busy);
-    };
-    socket.setTimeout(300);
-    socket.once("connect", () => done(true));
-    socket.once("timeout", () => done(false));
-    socket.once("error", () => done(false));
-    socket.connect(appPort, "127.0.0.1");
-  });
-}
-
-// Wait for app process to fully exit before running npm (avoids Windows file-lock)
-async function waitForAppExit() {
-  setPhase("waitingForExit");
-  pushLog(`[updater] waiting for app to exit (min ${Math.round(waitMinMs / 1000)}s)...`);
-
-  // Hard minimum delay: OS needs time to release file handles
-  await sleep(waitMinMs);
-
-  // Poll app port until free or max timeout
-  const deadline = Date.now() + (waitMaxMs - waitMinMs);
-  while (Date.now() < deadline) {
-    const busy = await isAppPortBusy();
-    if (!busy) {
-      pushLog(`[updater] app port :${appPort} is free, proceeding`);
-      return;
-    }
-    await sleep(waitCheckMs);
-  }
-  pushLog(`[updater] timeout waiting for app, proceeding anyway`);
-}
-
-function sleep(ms) {
-  return new Promise((r) => setTimeout(r, ms));
-}
-
-function runInstall() {
-  state.attempt += 1;
-  setPhase("installing");
-  pushLog(`[updater] attempt ${state.attempt}/${maxRetries} — npm i -g ${packageName} --prefer-online`);
-
-  const isWin = process.platform === "win32";
-  const cmd = isWin ? "npm.cmd" : "npm";
-  const args = ["i", "-g", packageName, "--prefer-online"];
-
-  const child = spawn(cmd, args, {
-    stdio: ["ignore", "pipe", "pipe"],
-    windowsHide: true,
-    shell: isWin,
-  });
-
-  child.stdout.on("data", (buf) => {
-    buf.toString().split(/\r?\n/).forEach(pushLog);
-    persistStatus();
-  });
-  child.stderr.on("data", (buf) => {
-    buf.toString().split(/\r?\n/).forEach(pushLog);
-    persistStatus();
-  });
-
-  child.on("error", (e) => {
-    pushLog(`[updater] spawn error: ${e.message}`);
-    finalize(false, null, e.message);
-  });
-
-  child.on("close", (code) => {
-    pushLog(`[updater] npm exited with code ${code}`);
-    if (code === 0) {
-      finalize(true, code, null);
-      return;
-    }
-    if (state.attempt < maxRetries) {
-      pushLog(`[updater] retrying in ${Math.round(retryDelayMs / 1000)}s...`);
-      setTimeout(runInstall, retryDelayMs);
-      return;
-    }
-    finalize(false, code, `Install failed after ${maxRetries} attempts`);
-  });
-}
-
-function openBrowser(url) {
-  const platform = process.platform;
-  const cmd = platform === "darwin" ? `open "${url}"`
-    : platform === "win32" ? `start "" "${url}"`
-    : `xdg-open "${url}"`;
-  try { spawn(cmd, { shell: true, detached: true, stdio: "ignore" }).unref(); } catch { /* ignore */ }
-}
-
-// Wait until app port is listening (server alive again), then open dashboard
-async function waitForAppAndOpenBrowser() {
-  const deadline = Date.now() + 30000;
-  while (Date.now() < deadline) {
-    const busy = await isAppPortBusy();
-    if (busy) {
-      openBrowser(`http://localhost:${appPort}/dashboard`);
-      pushLog(`[updater] app ready, opened dashboard`);
-      return;
-    }
-    await sleep(1000);
-  }
-  pushLog(`[updater] app not responding within 30s, skip browser open`);
-}
-
-function relaunchApp() {
-  if (process.env.UPDATER_RELAUNCH !== "1") return;
-  const cmd = process.env.UPDATER_RELAUNCH_CMD;
-  if (!cmd) return;
-  let args = [];
-  try { args = JSON.parse(process.env.UPDATER_RELAUNCH_ARGS || "[]"); } catch { /* noop */ }
-  const isWin = process.platform === "win32";
-  try {
-    const child = spawn(cmd, args, {
-      detached: true,
-      stdio: "ignore",
-      windowsHide: true,
-      shell: isWin,
-      env: { ...process.env, UPDATER_RELAUNCH: "", UPDATER_RELAUNCH_CMD: "", UPDATER_RELAUNCH_ARGS: "" },
-    });
-    child.unref();
-    pushLog(`[updater] relaunched: ${cmd} ${args.join(" ")} (pid=${child.pid})`);
-    // Wait for new app to come up, then auto-open browser so user sees the result
-    waitForAppAndOpenBrowser();
-  } catch (e) {
-    pushLog(`[updater] relaunch failed: ${e.message}`);
-  }
-}
-
-function finalize(success, exitCode, error) {
-  state.done = true;
-  state.success = success;
-  state.exitCode = exitCode;
-  state.error = error;
-  state.finishedAt = Date.now();
-  setPhase(success ? "done" : "error");
-  if (success) relaunchApp();
-  // Linger so browser can poll final status, then exit & close the port
-  setTimeout(() => {
-    try { server.close(); } catch { /* ignore */ }
-    process.exit(success ? 0 : 1);
-  }, lingerMs);
-}
diff --git a/src/mitm/manager.js b/src/mitm/manager.js
index a9d6e6a6..7c2a7841 100644
--- a/src/mitm/manager.js
+++ b/src/mitm/manager.js
@@ -13,7 +13,7 @@ const IS_MAC = process.platform === "darwin";
 const { generateCert } = require("./cert/generate");
 const { installCert, uninstallCert } = require("./cert/install");
 const { isCertExpired } = require("./cert/rootCA");
-const { DATA_DIR, MITM_DIR } = require("./paths");
+const { MITM_DIR } = require("./paths");
 const { log, err } = require("./logger");
 const { LSOF_BIN } = require("./config");
 
@@ -62,38 +62,7 @@ function resolveBundledServerPath() {
   return fromCwd;
 }
 
-// Copy bundled server.js into DATA_DIR so MITM doesn't lock node_modules
-// (prevents EBUSY on `npm i -g 9router@latest` while MITM is running).
-function ensureRuntimeServer(bundledPath) {
-  try {
-    if (!bundledPath || !fs.existsSync(bundledPath)) return bundledPath;
-
-    // Dev mode: source file has relative requires (./logger, ./config...),
-    // only the bundled file inside node_modules is self-contained + safe to copy.
-    if (!bundledPath.includes(`${path.sep}node_modules${path.sep}`)) {
-      return bundledPath;
-    }
-
-    const runtimeDir = path.join(DATA_DIR, "runtime", "mitm");
-    const runtimeServer = path.join(runtimeDir, "server.js");
-
-    // Skip copy if sizes match (bundle unchanged since last run)
-    if (fs.existsSync(runtimeServer)) {
-      try {
-        if (fs.statSync(bundledPath).size === fs.statSync(runtimeServer).size) return runtimeServer;
-      } catch { /* recopy */ }
-    }
-
-    fs.mkdirSync(runtimeDir, { recursive: true });
-    fs.copyFileSync(bundledPath, runtimeServer);
-    return runtimeServer;
-  } catch (e) {
-    try { log(`[MITM] runtime copy failed: ${e.message}`); } catch { /* ignore */ }
-    return bundledPath;
-  }
-}
-
-const SERVER_PATH = ensureRuntimeServer(resolveBundledServerPath());
+const SERVER_PATH = resolveBundledServerPath();
 const ENCRYPT_ALGO = "aes-256-gcm";
 const ENCRYPT_SALT = "9router-mitm-pwd";
 
@@ -572,11 +541,11 @@ async function startServer(apiKey, sudoPassword, forceKillPort443 = false) {
   }
 
   // Step 2: Spawn server (Root CA already installed in Step 1.5)
-  // Verify server.js exists — recopy if runtime file was deleted (antivirus/cleanup)
+  // Verify the bundled server is present before spawning it.
   let effectiveServerPath = SERVER_PATH;
   if (!effectiveServerPath || !fs.existsSync(effectiveServerPath)) {
-    log(`[MITM] server.js missing at ${effectiveServerPath} → recopying`);
-    effectiveServerPath = ensureRuntimeServer(resolveBundledServerPath());
+    log(`[MITM] server.js missing at ${effectiveServerPath} → resolving again`);
+    effectiveServerPath = resolveBundledServerPath();
     if (!effectiveServerPath || !fs.existsSync(effectiveServerPath)) {
       throw new Error(`MITM server.js not found at ${effectiveServerPath}. Reinstall 9router.`);
     }
diff --git a/src/shared/components/HeaderMenu.js b/src/shared/components/HeaderMenu.js
index 54ba6763..c2e94177 100644
--- a/src/shared/components/HeaderMenu.js
+++ b/src/shared/components/HeaderMenu.js
@@ -4,7 +4,6 @@ import { useState, useEffect, useRef } from "react";
 import PropTypes from "prop-types";
 import { useTheme } from "@/shared/hooks/useTheme";
 import ChangelogModal from "./ChangelogModal";
-import { ConfirmModal } from "./Modal";
 
 function MenuItem({ icon, label, onClick, trailing, danger }) {
   return (
@@ -36,22 +35,9 @@ MenuItem.propTypes = {
 export default function HeaderMenu({ onLogout }) {
   const [isOpen, setIsOpen] = useState(false);
   const [changelogOpen, setChangelogOpen] = useState(false);
-  const [shutdownOpen, setShutdownOpen] = useState(false);
-  const [isShuttingDown, setIsShuttingDown] = useState(false);
   const { toggleTheme, isDark } = useTheme();
   const menuRef = useRef(null);
 
-  const handleShutdown = async () => {
-    setIsShuttingDown(true);
-    try {
-      await fetch("/api/version/shutdown", { method: "POST" });
-    } catch (e) {
-      // Expected to fail as server shuts down; ignore error
-    }
-    setIsShuttingDown(false);
-    setShutdownOpen(false);
-  };
-
   useEffect(() => {
     const handleClickOutside = (e) => {
       if (menuRef.current && !menuRef.current.contains(e.target)) {
@@ -89,12 +75,6 @@ export default function HeaderMenu({ onLogout }) {
               label="Theme"
               onClick={() => { toggleTheme(); close(); }}
             />
-            <MenuItem
-              icon="power_settings_new"
-              label="Shutdown"
-              danger
-              onClick={() => { close(); setShutdownOpen(true); }}
-            />
             <MenuItem
               icon="logout"
               label="Logout"
@@ -106,17 +86,6 @@ export default function HeaderMenu({ onLogout }) {
       </div>
 
       <ChangelogModal isOpen={changelogOpen} onClose={() => setChangelogOpen(false)} />
-      <ConfirmModal
-        isOpen={shutdownOpen}
-        onClose={() => setShutdownOpen(false)}
-        onConfirm={handleShutdown}
-        title="Close Proxy"
-        message="Are you sure you want to close the proxy server?"
-        confirmText="Close"
-        cancelText="Cancel"
-        variant="danger"
-        loading={isShuttingDown}
-      />
     </>
   );
 }
diff --git a/src/shared/components/Sidebar.js b/src/shared/components/Sidebar.js
index 194597aa..c3681596 100644
--- a/src/shared/components/Sidebar.js
+++ b/src/shared/components/Sidebar.js
@@ -5,12 +5,9 @@ import PropTypes from "prop-types";
 import Link from "next/link";
 import { usePathname } from "next/navigation";
 import { cn } from "@/shared/utils/cn";
-import { APP_CONFIG, UPDATER_CONFIG } from "@/shared/constants/config";
+import { APP_CONFIG } from "@/shared/constants/config";
 import { MEDIA_PROVIDER_KINDS } from "@/shared/constants/providers";
-import { useCopyToClipboard } from "@/shared/hooks/useCopyToClipboard";
 import useUserStore from "@/store/userStore";
-import Button from "./Button";
-import { ConfirmModal } from "./Modal";
 
 // const VISIBLE_MEDIA_KINDS = ["embedding", "image", "imageToText", "tts", "stt", "webSearch", "webFetch", "video", "music"];
 const VISIBLE_MEDIA_KINDS = ["embedding", "image", "tts", "stt"];
@@ -43,17 +40,9 @@ const systemItems = [
 export default function Sidebar({ onClose }) {
   const pathname = usePathname();
   const [mediaOpen, setMediaOpen] = useState(false);
-  const [isDisconnected, setIsDisconnected] = useState(false);
-  const [updateInfo, setUpdateInfo] = useState(null);
-  const [showUpdateModal, setShowUpdateModal] = useState(false);
-  const [isUpdating, setIsUpdating] = useState(false);
-  const [shutdownCountdown, setShutdownCountdown] = useState(0);
   const [enableTranslator, setEnableTranslator] = useState(false);
   const user = useUserStore((state) => state.user);
   const fetchCurrentUser = useUserStore((state) => state.fetchCurrentUser);
-  const { copied, copy } = useCopyToClipboard(2000);
-
-  const INSTALL_CMD = UPDATER_CONFIG.installCmdLatest;
 
   useEffect(() => {
     fetch("/api/settings")
@@ -66,14 +55,6 @@ export default function Sidebar({ onClose }) {
     if (!user) fetchCurrentUser();
   }, [fetchCurrentUser, user]);
 
-  // Lazy check for new npm version on mount
-  useEffect(() => {
-    fetch("/api/version")
-      .then(res => res.json())
-      .then(data => { if (data.hasUpdate) setUpdateInfo(data); })
-      .catch(() => {});
-  }, []);
-
   const isActive = (href) => {
     if (href === "/dashboard/endpoint") {
       return pathname === "/dashboard" || pathname.startsWith("/dashboard/endpoint");
@@ -81,37 +62,6 @@ export default function Sidebar({ onClose }) {
     return pathname.startsWith(href);
   };
 
-  // Open manual update panel (no countdown yet — user must click Copy to trigger shutdown)
-  const handleUpdate = () => {
-    setShowUpdateModal(false);
-    setIsUpdating(true);
-  };
-
-  // Triggered by Copy button inside ManualUpdatePanel: copy + countdown + shutdown
-  const handleCopyAndShutdown = async () => {
-    try { await navigator.clipboard.writeText(INSTALL_CMD); } catch { /* clipboard blocked */ }
-    copy(INSTALL_CMD);
-    let remaining = UPDATER_CONFIG.shutdownCountdownSec;
-    setShutdownCountdown(remaining);
-    const timer = setInterval(() => {
-      remaining -= 1;
-      setShutdownCountdown(remaining);
-      if (remaining <= 0) {
-        clearInterval(timer);
-        fetch("/api/version/shutdown", { method: "POST" }).catch(() => {});
-        setIsDisconnected(true);
-      }
-    }, 1000);
-  };
-
-  const handleCancelUpdate = () => {
-    setIsUpdating(false);
-    setShutdownCountdown(0);
-  };
-
-  // Note: legacy updater poll removed. New flow: copy install cmd + shutdown server,
-  // user runs the command manually in another terminal.
-
 
   return (
     <>
@@ -136,30 +86,6 @@ export default function Sidebar({ onClose }) {
               <span className="text-xs text-text-muted">v{APP_CONFIG.version}</span>
             </div>
           </Link>
-          {updateInfo && (
-            <div className="flex flex-col gap-1.5 rounded p-1 -m-1">
-              <span className="text-xs font-semibold text-green-600 dark:text-amber-500">
-                ↑ New version available: v{updateInfo.latestVersion}
-              </span>
-              <div className="flex items-center gap-2">
-                <button
-                  onClick={() => setShowUpdateModal(true)}
-                  className="px-2 py-1 rounded bg-green-600 hover:bg-green-700 dark:bg-amber-500 dark:hover:bg-amber-600 text-white text-[11px] font-semibold transition-colors cursor-pointer"
-                >
-                  Update now
-                </button>
-                <button
-                  onClick={() => copy(INSTALL_CMD)}
-                  title="Copy install command"
-                  className="flex-1 text-left hover:opacity-80 transition-opacity cursor-pointer min-w-0"
-                >
-                  <code className="block text-[10px] text-green-600/80 dark:text-amber-400/70 font-mono truncate">
-                    {copied ? "✓ copied!" : INSTALL_CMD}
-                  </code>
-                </button>
-              </div>
-            </div>
-          )}
         </div>
 
         {/* Navigation */}
@@ -343,46 +269,6 @@ export default function Sidebar({ onClose }) {
         </nav>
 
       </aside>
-
-      {/* Update Confirmation Modal */}
-      <ConfirmModal
-        isOpen={showUpdateModal}
-        onClose={() => setShowUpdateModal(false)}
-        onConfirm={handleUpdate}
-        title="Update 9Router"
-        message={`Show install command for v${updateInfo?.latestVersion || ""}? You can copy it and shutdown to install manually.`}
-        confirmText="Show Command"
-        cancelText="Cancel"
-        variant="primary"
-      />
-
-      {/* Disconnected / Updating Overlay */}
-      {(isDisconnected || isUpdating) && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-sm p-6">
-          {isUpdating ? (
-            <ManualUpdatePanel
-              latestVersion={updateInfo?.latestVersion}
-              installCmd={INSTALL_CMD}
-              copied={copied}
-              onCopyAndShutdown={handleCopyAndShutdown}
-              onCancel={handleCancelUpdate}
-              countdown={shutdownCountdown}
-              isDisconnected={isDisconnected}
-            />
-          ) : (
-            <div className="text-center p-8">
-              <div className="flex items-center justify-center size-16 rounded-full bg-red-500/20 text-red-500 mx-auto mb-4">
-                <span className="material-symbols-outlined text-[32px]">power_off</span>
-              </div>
-              <h2 className="text-xl font-semibold text-white mb-2">Server Disconnected</h2>
-              <p className="text-text-muted mb-6">The proxy server has been stopped.</p>
-              <Button variant="secondary" onClick={() => globalThis.location.reload()}>
-                Reload Page
-              </Button>
-            </div>
-          )}
-        </div>
-      )}
     </>
   );
 }
@@ -390,62 +276,3 @@ export default function Sidebar({ onClose }) {
 Sidebar.propTypes = {
   onClose: PropTypes.func,
 };
-
-function ManualUpdatePanel({ latestVersion, installCmd, copied, onCopyAndShutdown, onCancel, countdown, isDisconnected }) {
-  const isCountingDown = countdown > 0;
-  return (
-    <div className="w-full max-w-lg rounded-xl bg-neutral-900/95 border border-white/10 p-6 text-white">
-      <div className="flex items-center gap-3 mb-4">
-        <div className="flex items-center justify-center size-11 rounded-full bg-amber-500/20 text-amber-400">
-          <span className="material-symbols-outlined text-[24px]">content_copy</span>
-        </div>
-        <div>
-          <h2 className="text-lg font-semibold">Update 9Router{latestVersion ? ` to v${latestVersion}` : ""}</h2>
-          <p className="text-xs text-white/60">
-            {isDisconnected
-              ? "Server stopped. Paste the command into a terminal to install."
-              : isCountingDown
-                ? `Command copied. Server will stop in ${countdown}s...`
-                : "Click the button below to copy the install command and shutdown."}
-          </p>
-        </div>
-      </div>
-
-      <p className="text-sm text-white/80 mb-2">Install command:</p>
-      <div className="w-full px-3 py-2 rounded bg-white/5 mb-4">
-        <code className="text-xs font-mono text-amber-400 break-all">{installCmd}</code>
-      </div>
-
-      <ol className="text-xs text-white/70 space-y-1 list-decimal list-inside mb-4">
-        <li>Click <strong>Copy & Shutdown</strong> below.</li>
-        <li>Paste the command into your terminal and press Enter.</li>
-        <li>Run <code className="px-1 rounded bg-white/10 text-green-400">9router</code> again after install.</li>
-      </ol>
-
-      {isDisconnected ? (
-        <Button variant="secondary" fullWidth onClick={() => globalThis.location.reload()}>
-          Reload Page
-        </Button>
-      ) : (
-        <div className="flex gap-2">
-          <Button variant="secondary" onClick={onCancel} disabled={isCountingDown}>
-            Cancel
-          </Button>
-          <Button variant="primary" fullWidth onClick={onCopyAndShutdown} disabled={isCountingDown}>
-            {copied ? "✓ Copied — shutting down..." : isCountingDown ? `Shutting down in ${countdown}s` : "Copy & Shutdown"}
-          </Button>
-        </div>
-      )}
-    </div>
-  );
-}
-
-ManualUpdatePanel.propTypes = {
-  latestVersion: PropTypes.string,
-  installCmd: PropTypes.string.isRequired,
-  copied: PropTypes.bool,
-  onCopyAndShutdown: PropTypes.func.isRequired,
-  onCancel: PropTypes.func.isRequired,
-  countdown: PropTypes.number,
-  isDisconnected: PropTypes.bool,
-};
diff --git a/src/shared/constants/config.js b/src/shared/constants/config.js
index 0650d086..f6955bd8 100644
--- a/src/shared/constants/config.js
+++ b/src/shared/constants/config.js
@@ -5,6 +5,7 @@ export const APP_CONFIG = {
   name: "9Router Proxy",
   description: "AI Infrastructure Management",
   version: pkg.version,
+  defaultPort: 20128,
 };
 
 // GitHub configuration
@@ -13,25 +14,6 @@ export const GITHUB_CONFIG = {
   donateUrl: "https://9router.com/api/donate",
 };
 
-// Updater configuration
-export const UPDATER_CONFIG = {
-  npmPackageName: "9router",
-  installCmd: "npm i -g 9router",
-  installCmdLatest: "npm i -g 9router@latest --prefer-online",
-  shutdownCountdownSec: 3,
-  exitDelayMs: 500,
-  statusPort: 20129,
-  statusPollIntervalMs: 1000,
-  statusLogTailLines: 8,
-  installRetries: 3,
-  installRetryDelayMs: 5000,
-  lingerAfterDoneMs: 30000,
-  waitForExitMinMs: 5000,
-  waitForExitMaxMs: 20000,
-  waitForExitCheckMs: 500,
-  appPort: 20128,
-};
-
 // Theme configuration
 export const THEME_CONFIG = {
   storageKey: "theme",