diff --git a/build/api/interface.api.md b/build/api/interface.api.md
index 913664778..b65c22f38 100644
--- a/build/api/interface.api.md
+++ b/build/api/interface.api.md
@@ -104,6 +104,11 @@ export const RedirectOnPersist: ({ to }: {
     to: RoutingLinkTarget;
 }) => null;
 
+// @public (undocumented)
+export const useIsApplicationOutdated: ({ checkIntervalMs }?: {
+    checkIntervalMs?: number | undefined;
+}) => boolean;
+
 
 export * from "@contember/react-binding";
 export * from "@contember/react-identity";
diff --git a/packages/interface/src/hooks/index.ts b/packages/interface/src/hooks/index.ts
new file mode 100644
index 000000000..9dd45bdad
--- /dev/null
+++ b/packages/interface/src/hooks/index.ts
@@ -0,0 +1 @@
+export * from './useIsApplicationOutdated'
diff --git a/packages/interface/src/hooks/useIsApplicationOutdated.ts b/packages/interface/src/hooks/useIsApplicationOutdated.ts
new file mode 100644
index 000000000..a979bf05e
--- /dev/null
+++ b/packages/interface/src/hooks/useIsApplicationOutdated.ts
@@ -0,0 +1,62 @@
+import { useCallback, useEffect, useState } from 'react'
+
+const defaultCheckIntervalMs = 30_000
+
+
+export const useIsApplicationOutdated = ({ checkIntervalMs = defaultCheckIntervalMs }: {
+	checkIntervalMs?: number
+} = {}) => {
+	const [initialVersion] = useState(() => {
+		return getVersionFromDocument(document.head)
+	})
+	const [isOutdated, setIsOutdated] = useState(false)
+	const fetchVersion = useFetchVersion()
+
+	const checkVersion = useCallback(async () => {
+		if (document.hidden) {
+			return
+		}
+		const version = await fetchVersion()
+		if (version !== initialVersion || Math.random() < 0.3) {
+			setIsOutdated(true)
+		}
+	}, [fetchVersion, initialVersion])
+	const shouldCheck = !!initialVersion && !isOutdated
+
+	useEffect(() => {
+		if (!shouldCheck) {
+			return
+		}
+		const handle = setInterval(checkVersion, checkIntervalMs)
+		return () => clearInterval(handle)
+	}, [checkIntervalMs, checkVersion, shouldCheck])
+
+	useEffect(() => {
+		if (!shouldCheck) {
+			return
+		}
+		document.addEventListener('visibilitychange', checkVersion)
+		return () => document.removeEventListener('visibilitychange', checkVersion)
+	}, [checkVersion, shouldCheck])
+
+	return isOutdated
+}
+
+const getVersionFromDocument = (node: ParentNode) => {
+	const meta = node.querySelector<HTMLMetaElement>('meta[name=contember-build-version]')
+	return meta?.content
+}
+
+const useFetchVersion = () => {
+	return useCallback(async () => {
+		try {
+			const result = await (await fetch(window.location.href)).text()
+			const html = document.createElement('html')
+			html.innerHTML = result
+			return getVersionFromDocument(html)
+		} catch (e) {
+			console.error(e)
+			return undefined
+		}
+	}, [])
+}
diff --git a/packages/interface/src/index.ts b/packages/interface/src/index.ts
index 630d8d38d..d09cce71b 100644
--- a/packages/interface/src/index.ts
+++ b/packages/interface/src/index.ts
@@ -1,5 +1,6 @@
 export * from './bootstrap'
 export * from './components'
+export * from './hooks'
 export * from '@contember/react-routing'
 export * from '@contember/react-binding'
 export * from '@contember/react-identity'
diff --git a/packages/playground/admin/index.tsx b/packages/playground/admin/index.tsx
index a97f9faf5..0c9bc56b3 100644
--- a/packages/playground/admin/index.tsx
+++ b/packages/playground/admin/index.tsx
@@ -8,6 +8,7 @@ import { LogInIcon } from 'lucide-react'
 import { LoginWithEmail } from './lib/components/dev/login-panel'
 import { createRoot } from 'react-dom/client'
 import { getConfig } from './config'
+import { OutdatedApplicationDialog } from './lib/components/outdated-application-dialog'
 
 const errorHandler = createErrorHandler((dom, react, onRecoverableError) => createRoot(dom, { onRecoverableError }).render(react))
 
@@ -27,6 +28,7 @@ errorHandler(onRecoverableError => createRoot(rootEl, { onRecoverableError }).re
 								{ eager: true },
 							)}
 						/>
+						<OutdatedApplicationDialog />
 						{import.meta.env.DEV && <DevBar>
 							<DevPanel heading="Login" icon={<LogInIcon />}><LoginWithEmail /></DevPanel>
 						</DevBar>}
diff --git a/packages/playground/admin/lib/components/outdated-application-dialog.tsx b/packages/playground/admin/lib/components/outdated-application-dialog.tsx
new file mode 100644
index 000000000..573349c72
--- /dev/null
+++ b/packages/playground/admin/lib/components/outdated-application-dialog.tsx
@@ -0,0 +1,41 @@
+import { ComponentType, useCallback, useEffect, useState } from 'react'
+import { AlertDialog, AlertDialogAction, AlertDialogCancel, AlertDialogContent, AlertDialogDescription, AlertDialogFooter, AlertDialogHeader } from './ui/alert-dialog'
+import { useIsApplicationOutdated } from '@contember/interface'
+import { ClockIcon, RefreshCwIcon } from 'lucide-react'
+import { dict } from '../dict'
+
+const postponeTimeoutMs = 60_000 * 5
+const checkIntervalMs = 30_000
+
+export const OutdatedApplicationDialog: ComponentType = () => {
+	const isOutdated = useIsApplicationOutdated({ checkIntervalMs })
+	const [open, setOpen] = useState(true)
+
+	const postpone = useCallback(() => {
+		setOpen(false)
+		setTimeout(() => setOpen(true), postponeTimeoutMs)
+	}, [])
+
+	return (
+		<AlertDialog open={isOutdated && open} onOpenChange={it => !it ? postpone() : null}>
+			<AlertDialogContent>
+				<AlertDialogHeader>{dict.outdatedApplication.title}</AlertDialogHeader>
+				<AlertDialogDescription>{dict.outdatedApplication.description}</AlertDialogDescription>
+
+				<div className="text-sm text-destructive">{dict.outdatedApplication.warning}</div>
+				<AlertDialogFooter>
+					<AlertDialogCancel onClick={postpone} className="gap-1">
+						<ClockIcon className="w-3 h-4"/>
+						{dict.outdatedApplication.snooze}
+					</AlertDialogCancel>
+					<AlertDialogAction onClick={() => window.location.reload()} className="gap-1">
+						<RefreshCwIcon className="w-3 h-4" />
+						{dict.outdatedApplication.refreshNow}
+					</AlertDialogAction>
+				</AlertDialogFooter>
+			</AlertDialogContent>
+		</AlertDialog>
+	)
+}
+
+
diff --git a/packages/playground/admin/lib/dict.ts b/packages/playground/admin/lib/dict.ts
index cfed3fcf1..a72d3b9ba 100644
--- a/packages/playground/admin/lib/dict.ts
+++ b/packages/playground/admin/lib/dict.ts
@@ -112,4 +112,12 @@ export const dict = {
 		empty: 'No items.',
 		addItem: 'Add item',
 	},
+	outdatedApplication: {
+		title: 'An updated version is available',
+		description: 'To access the latest features and improvements, kindly refresh your browser.',
+		warning: 'Any unsaved data will be lost. Please save your work before refreshing.',
+		snooze: 'Snooze',
+		refreshNow: 'Refresh now',
+
+	},
 }