diff --git a/src/lib/components/AnnouncementDialog.svelte b/src/lib/components/AnnouncementDialog.svelte
new file mode 100644
index 0000000..ed18c7d
--- /dev/null
+++ b/src/lib/components/AnnouncementDialog.svelte
@@ -0,0 +1,174 @@
+<script lang="ts">
+	import { onMount, onDestroy } from 'svelte';
+	import { GlobalEventBus } from '$lib/core/utils/eventBus';
+	import { XIcon } from '@lucide/svelte/icons';
+
+	export interface AnnouncementPayload {
+		title?: string;
+		subtitle?: string;
+		message: string;
+		buttonText?: string;
+		type?: 'info' | 'warning' | 'error' | 'success';
+	}
+
+	let visible = $state(false);
+	let payload = $state<AnnouncementPayload | null>(null);
+	let animating = $state(false);
+
+	function show(p: AnnouncementPayload) {
+		payload = p;
+		visible = true;
+		// Trigger enter animation on next frame
+		requestAnimationFrame(() => {
+			animating = true;
+		});
+	}
+
+	function dismiss() {
+		animating = false;
+		// Wait for exit animation
+		setTimeout(() => {
+			visible = false;
+			payload = null;
+		}, 200);
+	}
+
+	function handleKeydown(e: KeyboardEvent) {
+		if (e.key === 'Escape' && visible) {
+			dismiss();
+		}
+	}
+
+	let unsubscribe: (() => void) | undefined;
+
+	onMount(() => {
+		unsubscribe = GlobalEventBus.on('announce', (data: AnnouncementPayload) => {
+			show(data);
+		});
+		// if (window) window.addEventListener('keydown', handleKeydown);
+	});
+
+	onDestroy(() => {
+		unsubscribe?.();
+		// if (window) window.removeEventListener('keydown', handleKeydown);
+	});
+
+	const typeStyles: Record<string, { border: string; badge: string; icon: string }> = {
+		info: {
+			border: 'border-blue-500',
+			badge: 'bg-blue-100 text-blue-800 dark:bg-blue-900 dark:text-blue-200',
+			icon: ''
+		},
+		warning: {
+			border: 'border-amber-500',
+			badge: 'bg-amber-100 text-amber-800 dark:bg-amber-900 dark:text-amber-200',
+			icon: ''
+		},
+		error: {
+			border: 'border-red-500',
+			badge: 'bg-red-100 text-red-800 dark:bg-red-900 dark:text-red-200',
+			icon: ''
+		},
+		success: {
+			border: 'border-green-500',
+			badge: 'bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200',
+			icon: ''
+		}
+	};
+
+	function currentStyles() {
+		return typeStyles[payload?.type ?? 'info'] ?? typeStyles.info;
+	}
+</script>
+
+{#if visible}
+	<!-- svelte-ignore a11y_click_events_have_key_events a11y_no_static_element_interactions -->
+	<div
+		class="fixed inset-0 z-[9999] flex items-center justify-center p-4 sm:p-6 md:p-8"
+		role="dialog"
+		aria-modal="true"
+		aria-labelledby="announcement-title"
+		onclick={(e) => {
+			// Close on backdrop click
+			if (e.target === e.currentTarget) dismiss();
+		}}
+	>
+		<!-- Backdrop -->
+		<div
+			class="absolute inset-0 bg-black/60 backdrop-blur-lg transition-opacity duration-200"
+			class:opacity-100={animating}
+			class:opacity-0={!animating}
+		></div>
+
+		<!-- Card -->
+		<div
+			class="relative w-full max-w-lg overflow-hidden rounded-2xl border bg-white shadow-2xl transition-all duration-200 dark:border-neutral-700 dark:bg-neutral-900"
+			class:opacity-100={animating}
+			class:opacity-0={!animating}
+			class:scale-100={animating}
+			class:scale-95={!animating}
+		>
+			<!-- Colored top border accent -->
+			<div class="h-1.5 w-full {currentStyles().border}" />
+
+			<div class="p-6 sm:p-8">
+				<!-- Close button -->
+				<button
+					onclick={dismiss}
+					class="absolute top-4 right-4 rounded-full p-1.5 text-neutral-400 transition-colors hover:bg-neutral-100 hover:text-neutral-600 dark:hover:bg-neutral-800 dark:hover:text-neutral-300"
+					aria-label="Close announcement"
+				>
+					<XIcon size={20} />
+				</button>
+
+				<!-- Type badge -->
+				{#if payload?.type}
+					<span
+						class="mb-4 inline-block rounded-full px-3 py-1 text-xs font-semibold tracking-wider uppercase {currentStyles()
+							.badge}"
+					>
+						{payload.type}
+					</span>
+				{/if}
+
+				<!-- Title -->
+				{#if payload?.title}
+					<h2
+						id="announcement-title"
+						class="pr-8 text-2xl font-bold text-neutral-900 dark:text-white"
+					>
+						{payload.title}
+					</h2>
+				{/if}
+
+				<!-- Subtitle -->
+				{#if payload?.subtitle}
+					<p class="mt-1 text-sm font-medium text-neutral-500 dark:text-neutral-400">
+						{payload.subtitle}
+					</p>
+				{/if}
+
+				<!-- Message body -->
+				{#if payload?.message}
+					<div
+						class="mt-4 text-base leading-relaxed whitespace-pre-wrap text-neutral-700 dark:text-neutral-300"
+					>
+						{payload.message}
+					</div>
+				{/if}
+
+				<!-- Acknowledge / action button -->
+				{#if payload?.buttonText !== undefined}
+					<div class="mt-6 flex justify-end gap-3">
+						<button
+							onclick={dismiss}
+							class="inline-flex items-center justify-center rounded-lg bg-neutral-900 px-5 py-2.5 text-sm font-semibold text-white shadow-sm transition-colors hover:bg-neutral-800 focus-visible:ring-2 focus-visible:ring-neutral-400 focus-visible:outline-none dark:bg-white dark:text-neutral-900 dark:hover:bg-neutral-200"
+						>
+							{payload.buttonText || 'Acknowledge'}
+						</button>
+					</div>
+				{/if}
+			</div>
+		</div>
+	</div>
+{/if}
diff --git a/src/lib/core/handlers/messageHandler.ts b/src/lib/core/handlers/messageHandler.ts
index 4ec359e..4b8423b 100644
--- a/src/lib/core/handlers/messageHandler.ts
+++ b/src/lib/core/handlers/messageHandler.ts
@@ -50,6 +50,7 @@ import { handleSheetResponseFromNoti } from './sheetNotiHandler';
 import { env } from '$env/dynamic/public';
 import * as semver from 'semver';
 import { WebCryptoHelper } from '../utils/crypto';
+import { GlobalEventBus } from '../utils/eventBus';
 
 export const messages = writable<string[]>([]);
 
@@ -481,6 +482,10 @@ const handlers: Record<string, (payload: any) => void> = {
 	raw_stream_end_price: (p) => {
 		// End for price stream
 		handleRawStreamEnd('price', p);
+	},
+	announce: (p) => {
+		// Server-pushed announcement (e.g., closing maintenance)
+		GlobalEventBus.emit('announce', p);
 	}
 };
 
@@ -498,7 +503,7 @@ export async function handleIncomingMessages(raw: string, clientPrivateKey: Cryp
 
 		return;
 	}
-	if (semver.satisfies(APP_VERSION, '^0.0.2')) {
+	if (semver.satisfies(APP_VERSION, '>=0.0.2')) {
 		// secured message decryption
 		let sharedKeyStore = get(sharedKey);
 		if (sharedKeyStore) {
diff --git a/src/lib/core/handlers/ws_messageSender.ts b/src/lib/core/handlers/ws_messageSender.ts
index 7d38d38..f07727a 100644
--- a/src/lib/core/handlers/ws_messageSender.ts
+++ b/src/lib/core/handlers/ws_messageSender.ts
@@ -75,7 +75,7 @@ export async function sendMessage(
 
 	// console.log('send v2', APP_VERSION, semver.satisfies(APP_VERSION, '^0.0.2'));
 
-	if (semver.satisfies(APP_VERSION, '^0.0.2')) {
+	if (semver.satisfies(APP_VERSION, '>=0.0.2')) {
 		// console.log('sending secured');
 		let sharedKeyRes = get(sharedKey);
 
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 6057787..caf81ce 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -27,6 +27,7 @@
 	} from '$lib/helpers/cookie';
 	import { connectToWebsocket } from '$lib/core/stores/websocketStore';
 	import { GlobalEventBus } from '$lib/core/utils/eventBus';
+	import AnnouncementDialog from '$lib/components/AnnouncementDialog.svelte';
 	import * as semver from 'semver';
 	import { env } from '$env/dynamic/public';
 
@@ -91,4 +92,5 @@
 
 <ModeWatcher />
 <Toaster />
+<AnnouncementDialog />
 {@render children()}