diff --git a/backend/package.json b/backend/package.json
index 1fc447a..f179e64 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jama-backend",
-  "version": "0.11.13",
+  "version": "0.11.14",
   "description": "TeamChat backend server",
   "main": "src/index.js",
   "scripts": {
diff --git a/backend/src/index.js b/backend/src/index.js
index 09f48fc..9dd5f77 100644
--- a/backend/src/index.js
+++ b/backend/src/index.js
@@ -35,7 +35,7 @@ app.use('/api/users',      require('./routes/users'));
 app.use('/api/groups',     require('./routes/groups')(io));
 app.use('/api/messages',   require('./routes/messages')(io));
 app.use('/api/usergroups', require('./routes/usergroups')(io));
-app.use('/api/schedule',   require('./routes/schedule'));
+app.use('/api/schedule',   require('./routes/schedule')(io));
 app.use('/api/settings',   require('./routes/settings'));
 app.use('/api/about',      require('./routes/about'));
 app.use('/api/help',       require('./routes/help'));
diff --git a/backend/src/routes/schedule.js b/backend/src/routes/schedule.js
index b1e3d5e..0d52461 100644
--- a/backend/src/routes/schedule.js
+++ b/backend/src/routes/schedule.js
@@ -1,11 +1,56 @@
 const express   = require('express');
-const router    = express.Router();
 const { query, queryOne, queryResult, exec } = require('../models/db');
 const { authMiddleware, teamManagerMiddleware } = require('../middleware/auth');
 const multer    = require('multer');
 const { parse: csvParse } = require('csv-parse/sync');
 const upload    = multer({ storage: multer.memoryStorage(), limits: { fileSize: 2 * 1024 * 1024 } });
 
+const R = (schema, type, id) => `${schema}:${type}:${id}`;
+
+module.exports = function(io) {
+
+const router = express.Router();
+
+// ── Event notification helper ─────────────────────────────────────────────────
+// Posts a plain system message to each assigned user group's DM channel
+// when an event is created or updated.
+
+async function postEventNotification(schema, eventId, actorId, isUpdate) {
+  try {
+    const event = await queryOne(schema, 'SELECT * FROM events WHERE id=$1', [eventId]);
+    if (!event) return;
+
+    const dateStr = new Date(event.start_at).toLocaleDateString('en-US', {
+      weekday: 'short', month: 'short', day: 'numeric',
+    });
+    const verb    = isUpdate ? 'updated' : 'added';
+    const content = `📅 Event ${verb}: "${event.title}" on ${dateStr}`;
+
+    const groups = await query(schema, `
+      SELECT ug.dm_group_id
+      FROM event_user_groups eug
+      JOIN user_groups ug ON ug.id = eug.user_group_id
+      WHERE eug.event_id = $1 AND ug.dm_group_id IS NOT NULL
+    `, [eventId]);
+
+    for (const { dm_group_id } of groups) {
+      const r = await queryResult(schema,
+        "INSERT INTO messages (group_id,user_id,content,type) VALUES ($1,$2,$3,'system') RETURNING id",
+        [dm_group_id, actorId, content]
+      );
+      const msg = await queryOne(schema, `
+        SELECT m.*, u.name AS user_name, u.display_name AS user_display_name,
+          u.avatar AS user_avatar, u.role AS user_role, u.status AS user_status,
+          u.hide_admin_tag AS user_hide_admin_tag, u.about_me AS user_about_me, u.allow_dm AS user_allow_dm
+        FROM messages m JOIN users u ON m.user_id = u.id WHERE m.id = $1
+      `, [r.rows[0].id]);
+      if (msg) { msg.reactions = []; io.to(R(schema, 'group', dm_group_id)).emit('message:new', msg); }
+    }
+  } catch (e) {
+    console.error('[Schedule] postEventNotification error:', e.message);
+  }
+}
+
 // ── Helpers ───────────────────────────────────────────────────────────────────
 
 async function isToolManagerFn(schema, user) {
@@ -212,6 +257,8 @@ router.post('/', authMiddleware, teamManagerMiddleware, async (req, res) => {
     const eventId = r.rows[0].id;
     for (const ugId of (Array.isArray(userGroupIds) ? userGroupIds : []))
       await exec(req.schema, 'INSERT INTO event_user_groups (event_id,user_group_id) VALUES ($1,$2) ON CONFLICT DO NOTHING', [eventId, ugId]);
+    if (Array.isArray(userGroupIds) && userGroupIds.length > 0)
+      await postEventNotification(req.schema, eventId, req.user.id, false);
     const event = await queryOne(req.schema, 'SELECT * FROM events WHERE id=$1', [eventId]);
     res.json({ event: await enrichEvent(req.schema, event) });
   } catch (e) { res.status(500).json({ error: e.message }); }
@@ -255,6 +302,9 @@ router.patch('/:id', authMiddleware, teamManagerMiddleware, async (req, res) =>
     }
 
     const updated = await queryOne(req.schema, 'SELECT * FROM events WHERE id=$1', [req.params.id]);
+    const finalGroups = await query(req.schema, 'SELECT user_group_id FROM event_user_groups WHERE event_id=$1', [req.params.id]);
+    if (finalGroups.length > 0)
+      await postEventNotification(req.schema, req.params.id, req.user.id, true);
     res.json({ event: await enrichEvent(req.schema, updated) });
   } catch (e) { res.status(500).json({ error: e.message }); }
 });
@@ -375,4 +425,5 @@ router.post('/import/confirm', authMiddleware, teamManagerMiddleware, async (req
   } catch (e) { res.status(500).json({ error: e.message }); }
 });
 
-module.exports = router;
+return router;
+}; // end module.exports
diff --git a/build.sh b/build.sh
index 9e1e9f5..65ad60a 100644
--- a/build.sh
+++ b/build.sh
@@ -13,7 +13,7 @@
 # ─────────────────────────────────────────────────────────────
 set -euo pipefail
 
-VERSION="${1:-0.11.13}"
+VERSION="${1:-0.11.14}"
 ACTION="${2:-}"
 REGISTRY="${REGISTRY:-}"
 IMAGE_NAME="jama"
diff --git a/frontend/package.json b/frontend/package.json
index e5ffc13..e458ccf 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jama-frontend",
-  "version": "0.11.13",
+  "version": "0.11.14",
   "private": true,
   "scripts": {
     "dev": "vite",
diff --git a/frontend/public/favicon.ico b/frontend/public/favicon.ico
index bf1fa54..3f7a56c 100644
Binary files a/frontend/public/favicon.ico and b/frontend/public/favicon.ico differ
diff --git a/frontend/public/icons/icon-192-maskable.png b/frontend/public/icons/icon-192-maskable.png
index 1742ca5..c62db49 100644
Binary files a/frontend/public/icons/icon-192-maskable.png and b/frontend/public/icons/icon-192-maskable.png differ
diff --git a/frontend/public/icons/icon-192.png b/frontend/public/icons/icon-192.png
index 3ad9432..20e4a9b 100644
Binary files a/frontend/public/icons/icon-192.png and b/frontend/public/icons/icon-192.png differ
diff --git a/frontend/public/icons/icon-512-maskable.png b/frontend/public/icons/icon-512-maskable.png
index 2f30105..f8710bd 100644
Binary files a/frontend/public/icons/icon-512-maskable.png and b/frontend/public/icons/icon-512-maskable.png differ
diff --git a/frontend/public/icons/icon-512.png b/frontend/public/icons/icon-512.png
index f785653..650f2a6 100644
Binary files a/frontend/public/icons/icon-512.png and b/frontend/public/icons/icon-512.png differ
diff --git a/frontend/public/icons/jama.png b/frontend/public/icons/jama.png
index f08c18c..650f2a6 100644
Binary files a/frontend/public/icons/jama.png and b/frontend/public/icons/jama.png differ
diff --git a/frontend/public/icons/logo-64.png b/frontend/public/icons/logo-64.png
index 5529d61..37d4051 100644
Binary files a/frontend/public/icons/logo-64.png and b/frontend/public/icons/logo-64.png differ
diff --git a/frontend/public/manifest.json b/frontend/public/manifest.json
index 70c2af0..0b70959 100644
--- a/frontend/public/manifest.json
+++ b/frontend/public/manifest.json
@@ -22,10 +22,16 @@
       "purpose": "maskable"
     },
     {
-      "purpose": "any maskable",
+      "src": "/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
       "src": "/icons/icon-512-maskable.png",
       "sizes": "512x512",
-      "type": "image/png"
+      "type": "image/png",
+      "purpose": "maskable"
     }
   ],
   "min_width": "320px"