diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 6bd3234..69ea3bb 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -4,7 +4,7 @@ import { TOOLS, getGroupedTools } from './toolRegistry.js';
 import CalendarWidget, { CalendarSettings } from './calendar.jsx';
 import { DateiSettings } from './tools/dateien.jsx';
 import { useConfirm } from './confirm.jsx';
-import { HomeIcon, AppsIcon, AdminIcon, MoreIcon, UserIcon, LogOutIcon, ChevronIcon, UpdateIcon, TrashIcon, MessageIcon } from './icons.jsx';
+import { HomeIcon, AppsIcon, AdminIcon, MoreIcon, UserIcon, LogOutIcon, ChevronIcon, TrashIcon, MessageIcon } from './icons.jsx';
 import { getOrCreateKeyPair, getPublicKeyJwk, getFingerprint, exportEncrypted, importEncrypted, generateNewKeyPair } from './crypto.js';
 
 const CONST_ICONS = ['🔗','🌐','📊','📁','🛠','📧','🗓','💾','🖥','📡','🔒','📖','🎯','⚡','🏠','🔧','📱','🎮','🚀','💡'];
@@ -154,38 +154,8 @@ function Login({ onLogin }) {
 }
 
 // ── Update Modal ──────────────────────────────────────────────────────────────
-function UpdateModal({ data, onClose }) {
-  return (
-    <Modal title="📦 Update verfügbar" onClose={onClose}>
-      <div style={{ marginBottom:14, padding:'8px 12px', background:'rgba(255,230,109,0.06)',
-        border:'1px solid rgba(255,230,109,0.2)', borderRadius:8 }}>
-        <span style={{ color:'rgba(255,255,255,0.5)', fontSize:12, fontFamily:'monospace' }}>
-          Installiert: <span style={{ color:'#4ecdc4' }}>{data.currentVersion}</span>
-          {' → '}<span style={{ color:'#ffe66d' }}>{data.latestVersion}</span>
-        </span>
-      </div>
-      {(data.releases||[]).map((r,i)=>(
-        <div key={i} style={{ marginBottom:12, padding:'12px 14px',
-          background:i===0?'rgba(78,205,196,0.05)':'rgba(255,255,255,0.02)',
-          border:`1px solid ${i===0?'rgba(78,205,196,0.2)':'rgba(255,255,255,0.05)'}`, borderRadius:8 }}>
-          <div style={{ display:'flex', justifyContent:'space-between', marginBottom:6 }}>
-            <span style={{ color:i===0?'#4ecdc4':'#fff', fontFamily:"'Space Mono',monospace", fontSize:13, fontWeight:700 }}>{r.name||r.version}</span>
-            <span style={{ color:'rgba(255,255,255,0.3)', fontSize:10, fontFamily:'monospace' }}>
-              {r.publishedAt?new Date(r.publishedAt).toLocaleDateString('de-DE'):''}
-            </span>
-          </div>
-          <pre style={{ color:'rgba(255,255,255,0.5)', fontSize:12, fontFamily:'monospace', whiteSpace:'pre-wrap', lineHeight:1.6, margin:0 }}>{r.body}</pre>
-        </div>
-      ))}
-      <div style={{ color:'rgba(255,255,255,0.55)', fontSize:11, fontFamily:'monospace', marginTop:8, lineHeight:1.8 }}>
-        Update: <code style={{ color:'#4ecdc4' }}>docker compose up -d --build</code>
-      </div>
-    </Modal>
-  );
-}
-
 // ── Desktop Sidebar ───────────────────────────────────────────────────────────
-function Sidebar({ active, setActive, user, onLogout, updateInfo, onUpdateClick, unreadMsgs=0 }) {
+function Sidebar({ active, setActive, user, onLogout, unreadMsgs=0 }) {
   const [appsOpen, setAppsOpen] = useState(true);
   const [collapsed, setCollapsed] = useState(false);
 
@@ -277,17 +247,6 @@ function Sidebar({ active, setActive, user, onLogout, updateInfo, onUpdateClick,
 
         <NavBtn item={{ id:'admin', Icon:AdminIcon, label:'Einstellungen' }} />
       </nav>
-      {updateInfo?.hasUpdate && (
-        <button onClick={onUpdateClick} style={{
-          margin:'0 8px 8px', background:'rgba(255,230,109,0.08)',
-          border:'1px solid rgba(255,230,109,0.3)', borderRadius:8,
-          padding:'8px 12px', cursor:'pointer', display:'flex', alignItems:'center', gap:8,
-        }}>
-          <span style={{ width:7, height:7, borderRadius:'50%', background:'#ffe66d', flexShrink:0, boxShadow:'0 0 6px #ffe66d', display:'inline-block' }} />
-          <span style={{ color:'#ffe66d', fontSize:11, fontFamily:'monospace' }}>Update</span>
-          <span style={{ color:'rgba(255,230,109,0.5)', fontSize:10, fontFamily:'monospace', marginLeft:'auto' }}>{updateInfo.latestVersion}</span>
-        </button>
-      )}
       <div style={{ padding:'10px 12px 16px', borderTop:'1px solid rgba(255,255,255,0.06)' }}>
         {!collapsed && <><div style={{ display:'flex', alignItems:'center', gap:8, marginBottom:8 }}>
           <div style={{ width:24, height:24, borderRadius:'50%', background:'linear-gradient(135deg,#ff6b9d,#4ecdc4)',
@@ -306,7 +265,7 @@ function Sidebar({ active, setActive, user, onLogout, updateInfo, onUpdateClick,
 }
 
 // ── Mobile Bottom Navigation ──────────────────────────────────────────────────
-function BottomNav({ active, setActive, user, onLogout, updateInfo, onUpdateClick, unreadMsgs=0 }) {
+function BottomNav({ active, setActive, user, onLogout, unreadMsgs=0 }) {
   const [menuOpen, setMenuOpen] = useState(false);
   const [appsOpen, setAppsOpen] = useState(false);
   const NAV_H = 56;
@@ -382,7 +341,6 @@ function BottomNav({ active, setActive, user, onLogout, updateInfo, onUpdateClic
 
       {/* Mehr Sheet */}
       <Sheet open={menuOpen} onClose={()=>setMenuOpen(false)}>
-        {updateInfo?.hasUpdate && <MI Icon={UpdateIcon} label={`Update: ${updateInfo.latestVersion}`} onClick={()=>{setMenuOpen(false);onUpdateClick();}} color="#ffe66d"/>}
         <div style={{height:1, background:'rgba(255,255,255,0.08)', margin:'4px 0'}}/>
         <MI Icon={UserIcon} label={user?.username||''} onClick={()=>{}} color="rgba(255,255,255,0.35)"/>
         <MI Icon={LogOutIcon} label="Ausloggen" onClick={()=>{onLogout();setMenuOpen(false);}} color="#ff6b9d"/>
@@ -406,11 +364,6 @@ function BottomNav({ active, setActive, user, onLogout, updateInfo, onUpdateClic
                 style={{ flex:1, display:'flex', flexDirection:'column', alignItems:'center',
                   justifyContent:'center', gap:3, background:'transparent', border:'none',
                   cursor:'pointer', position:'relative', minWidth:0, padding:'0 4px' }}>
-                {isMehr && updateInfo?.hasUpdate && (
-                  <span style={{ position:'absolute', top:6, right:'calc(50% - 16px)',
-                    width:8, height:8, borderRadius:'50%', background:'#ffe66d',
-                    boxShadow:'0 0 6px #ffe66d', display:'inline-block' }} />
-                )}
                 {isApps && unreadMsgs>0 && (
                   <span style={{ position:'absolute', top:6, right:'calc(50% - 16px)',
                     width:8, height:8, borderRadius:'50%', background:'#4ecdc4',
@@ -2385,8 +2338,6 @@ export default function App() {
     setActiveRaw(page);
   };
   const [toastMsg,setToastMsg]=useState({msg:'',type:'success'});
-  const [updateInfo,setUpdateInfo]=useState(null);
-  const [showUpd,setShowUpd]=useState(false);
   const [unreadMsgs,  setUnreadMsgs]  = useState(0);
   const [unreadBoard,    setUnreadBoard]    = useState(0);
   const [unreadPromoted, setUnreadPromoted] = useState(0);
@@ -2406,10 +2357,6 @@ export default function App() {
 
   useEffect(()=>{
     if(!user)return;
-    const check=()=>api('/system/update-check').then(setUpdateInfo).catch(()=>{});
-    check();
-    const t=setInterval(check,5*60*1000);
-    return()=>clearInterval(t);
   },[user]);
 
   // Schlüssel sofort nach Login initialisieren und Public Key registrieren
@@ -2482,7 +2429,7 @@ export default function App() {
         {!mobile && (
           <Sidebar active={active} setActive={setActive} user={user}
             onLogout={()=>{localStorage.removeItem('sk_token');setUser(null);}}
-            updateInfo={updateInfo} onUpdateClick={()=>setShowUpd(true)}
+           
             unreadMsgs={unreadMsgs}/>
         )}
         <main style={mainStyle}>
@@ -2494,11 +2441,10 @@ export default function App() {
       {mobile && (
         <BottomNav active={active} setActive={setActive} user={user}
           onLogout={()=>{localStorage.removeItem('sk_token');setUser(null);}}
-          updateInfo={updateInfo} onUpdateClick={()=>setShowUpd(true)}
+         
           unreadMsgs={unreadMsgs}/>
       )}
       <Toast msg={toastMsg.msg} type={toastMsg.type}/>
-      {showUpd&&updateInfo&&<UpdateModal data={updateInfo} onClose={()=>setShowUpd(false)}/>}
     </>
   );
 }