Should be ready for release now. Will do some testing before.

src/app/update/outdated/page.tsx

@@ -0,0 +1,20 @@
+'use client'
+
+import { openUrl } from '@tauri-apps/plugin-opener'
+
+export default function UpdateCheckingPage () {
+  return (
+    <div className='text-center'>
+      <p className='text-6xl mb-4'>Outdated Launcher!</p>
+      <p className='text-2xl mb-4'>
+        Please update to the latest version to continue.
+      </p>
+      <button
+        className='button btntheme1'
+        onClick={() => openUrl('https://games.lncvrt.xyz/download')}
+      >
+        Download latest version!
+      </button>
+    </div>
+  )
+}