diff --git a/src/uxcore/components/NewUpdateModal/NewUpdateModal.tsx b/src/uxcore/components/NewUpdateModal/NewUpdateModal.tsx
index c3d8bb8..492d67c 100644
--- a/src/uxcore/components/NewUpdateModal/NewUpdateModal.tsx
+++ b/src/uxcore/components/NewUpdateModal/NewUpdateModal.tsx
@@ -1,11 +1,10 @@
+import Button from '@uxcore/components/Button';
+import Modal from '@uxcore/components/Modal';
 import Image from 'next/image';
 import Link from 'next/link';
 import { FC } from 'react';
 import ReactMarkdown from 'react-markdown';
 
-import Button from '@uxcore/components/Button';
-import Modal from '@uxcore/components/Modal';
-
 import type { NewUpdateModalProps } from './NewUpdateModal.types';
 
 import styles from './NewUpdateModal.module.scss';
diff --git a/src/uxcore/components/NewUpdateModal/NewUpdateModal.types.ts b/src/uxcore/components/NewUpdateModal/NewUpdateModal.types.ts
index 43b73f8..7a4d2f9 100644
--- a/src/uxcore/components/NewUpdateModal/NewUpdateModal.types.ts
+++ b/src/uxcore/components/NewUpdateModal/NewUpdateModal.types.ts
@@ -12,6 +12,7 @@ export interface NewUpdateData {
   'Close button text'?: string;
   'Frontend modal visibility'?: boolean;
   'Appears after x seconds'?: number;
+  updatedAt?: string;
 }
 
 export interface NewUpdateModalProps {
diff --git a/src/uxcore/components/NewUpdateModal/NewUpdateModalContainer.tsx b/src/uxcore/components/NewUpdateModal/NewUpdateModalContainer.tsx
index fa2d68a..8634b58 100644
--- a/src/uxcore/components/NewUpdateModal/NewUpdateModalContainer.tsx
+++ b/src/uxcore/components/NewUpdateModal/NewUpdateModalContainer.tsx
@@ -5,6 +5,8 @@ import { FC, useEffect, useState } from 'react';
 import NewUpdateModal from './NewUpdateModal';
 import type { NewUpdateData } from './NewUpdateModal.types';
 
+const DISMISSED_KEY = 'uxcoreNewUpdateDismissed';
+
 const NewUpdateModalContainer: FC = () => {
   const router = useRouter();
   const [data, setData] = useState<NewUpdateData | null>(null);
@@ -22,6 +24,11 @@ const NewUpdateModalContainer: FC = () => {
 
         if (cancelled || !res || !res['Frontend modal visibility']) return;
 
+        // Dismissal is keyed to the CMS updatedAt: closing hides this update
+        // for the rest of the session, but a newly published one shows again.
+        if (sessionStorage.getItem(DISMISSED_KEY) === (res.updatedAt ?? 'seen'))
+          return;
+
         setData(res);
 
         const delaySeconds = Number(res['Appears after x seconds']) || 0;
@@ -42,9 +49,18 @@ const NewUpdateModalContainer: FC = () => {
     };
   }, [router.locale]);
 
+  const handleClose = () => {
+    setOpen(false);
+    try {
+      sessionStorage.setItem(DISMISSED_KEY, data?.updatedAt ?? 'seen');
+    } catch {
+      // Storage can be unavailable (private mode); closing still works.
+    }
+  };
+
   if (!open || !data) return null;
 
-  return <NewUpdateModal data={data} onClose={() => setOpen(false)} />;
+  return <NewUpdateModal data={data} onClose={handleClose} />;
 };
 
 export default NewUpdateModalContainer;