diff --git a/.changeset/slow-paws-beg.md b/.changeset/slow-paws-beg.md
new file mode 100644
index 00000000..265f8d27
--- /dev/null
+++ b/.changeset/slow-paws-beg.md
@@ -0,0 +1,35 @@
+---
+'@redux-devtools/app': major
+---
+
+The UMD bundle now exports the same thing as the library and includes the CSS in a sperate file. Therfore, the new usage is:
+
+```diff
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>Redux DevTools</title>
++   <link href="/redux-devtools-app.min.css" rel="stylesheet" />
+  </head>
+  <body>
+    <div id="root"></div>
+    <script src="/react.production.min.js"></script>
+    <script src="/react-dom.production.min.js"></script>
+    <script src="/redux-devtools-app.min.js"></script>
+    <script src="/port.js"></script>
+    <script>
+      const container = document.querySelector('#root');
+-     const element = React.createElement(ReduxDevToolsApp, {
++     const element = React.createElement(ReduxDevToolsApp.Root, {
+        socketOptions: {
+          hostname: location.hostname,
+          port: reduxDevToolsPort,
+          autoReconnect: true,
+        },
+      });
+      ReactDOM.createRoot(container).render(element);
+    </script>
+  </body>
+</html>
+```
