diff --git a/main.js b/main.js
index af70c2b..dd7a3d0 100644
--- a/main.js
+++ b/main.js
@@ -7,6 +7,8 @@ const crypto = require('crypto');
 const { execSync } = require('child_process');
 const https = require('https');
 const http = require('http');
+const Updater = require('./updater.js'); // Auto-Updater
+let updater = null;
 
 const {
   createRepoGitHub,
@@ -1586,3 +1588,49 @@ ipcMain.handle('get-commit-files', async (event, data) => {
     return { ok: false, error: String(error) };
   }
 });
+
+
+
+
+
+// main.js - Updater IPC Handlers
+
+// 1. Version abfragen
+ipcMain.handle('get-app-version', async () => {
+  return { ok: true, version: app.getVersion() }; 
+});
+
+// 2. Suche nach Updates (Manuell oder Automatisch)
+ipcMain.handle('check-for-updates', async (event) => {
+  console.log("[Main] Update-Check angefordert...");
+  try {
+    if (!updater) {
+      const win = BrowserWindow.fromWebContents(event.sender);
+      if (win) updater = new Updater(win);
+    }
+    if (updater) await updater.checkForUpdates(false); 
+    return { ok: true };
+  } catch (error) {
+    console.error('[Main] Fehler beim Update-Check:', error);
+    return { ok: false, error: String(error) };
+  }
+});
+
+// 3. Download starten (wird vom "Jetzt installieren" Button gerufen)
+ipcMain.handle('start-update-download', async (event, asset) => {
+  console.log("[Main] Download-Signal erhalten für:", asset ? asset.name : "Unbekannt");
+  try {
+    if (!updater) {
+      const win = BrowserWindow.fromWebContents(event.sender);
+      updater = new Updater(win);
+    }
+    if (asset && asset.browser_download_url) {
+      await updater.startDownload(asset);
+      return { ok: true };
+    }
+    return { ok: false, error: 'Ungültiges Asset' };
+  } catch (error) {
+    console.error('[Main] Download-Fehler:', error);
+    return { ok: false, error: String(error) };
+  }
+});
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