diff --git a/web/app.react.js b/web/app.react.js
--- a/web/app.react.js
+++ b/web/app.react.js
@@ -37,6 +37,7 @@
 import InputStateContainer from './input/input-state-container.react';
 import LoadingIndicator from './loading-indicator.react';
 import { MenuProvider } from './menu-provider.react';
+import UpdateModalHandler from './modals/update-modal.react';
 import { updateNavInfoActionType } from './redux/action-types';
 import DeviceIDUpdater from './redux/device-id-updater';
 import DisconnectedBar from './redux/disconnected-bar';
@@ -204,6 +205,7 @@
       <div className={css.layout}>
         <DisconnectedBarVisibilityHandler />
         <DisconnectedBar />
+        <UpdateModalHandler />
         <header
           className={headerClasses}
           onDoubleClick={this.onHeaderDoubleClick}
diff --git a/web/electron.js b/web/electron.js
--- a/web/electron.js
+++ b/web/electron.js
@@ -4,7 +4,7 @@
 
 declare var electronContextBridge: void | ElectronBridge;
 
-const electron: ?ElectronBridge =
+const electron: null | ElectronBridge =
   typeof electronContextBridge === 'undefined' ? null : electronContextBridge;
 
 export default electron;
diff --git a/web/modals/update-modal.css b/web/modals/update-modal.css
new file mode 100644
--- /dev/null
+++ b/web/modals/update-modal.css
@@ -0,0 +1,14 @@
+.container {
+  padding: 0 40px 32px;
+  border-radius: 8px;
+  color: var(--modal-fg);
+}
+.text {
+  font-size: var(--xl-font-20);
+  padding: 5px 0px 20px;
+}
+.buttonContainer {
+  display: flex;
+  justify-content: flex-end;
+  gap: 24px;
+}
diff --git a/web/modals/update-modal.react.js b/web/modals/update-modal.react.js
new file mode 100644
--- /dev/null
+++ b/web/modals/update-modal.react.js
@@ -0,0 +1,92 @@
+// @flow
+
+import * as React from 'react';
+
+import { useModalContext } from 'lib/components/modal-provider.react';
+
+import Button from '../components/button.react';
+import electron from '../electron';
+import Modal from './modal.react';
+import css from './update-modal.css';
+
+type Props = {
+  +title: string,
+  +text: string,
+  +confirmText: string,
+  +onConfirm: () => void,
+};
+function UpdateModal(props: Props): React.Node {
+  const { title, text, confirmText, onConfirm } = props;
+
+  const { popModal } = useModalContext();
+
+  return (
+    <Modal
+      size="fit-content"
+      name={title}
+      icon="download"
+      withCloseButton={false}
+      onClose={popModal}
+    >
+      <div className={css.container}>
+        <p className={css.text}>{text}</p>
+        <div className={css.buttonContainer}>
+          <Button variant="outline" onClick={popModal}>
+            Later
+          </Button>
+          <Button variant="filled" onClick={onConfirm} type="submit">
+            {confirmText}
+          </Button>
+        </div>
+      </div>
+    </Modal>
+  );
+}
+
+function UpdateModalHandler(): React.Node {
+  const { pushModal, popModal } = useModalContext();
+
+  // This modal is only for the update from the first version (0.0.1)
+  // to the self-updating version
+  React.useEffect(() => {
+    if (electron === null || electron.version !== undefined) {
+      return;
+    }
+
+    pushModal(
+      <UpdateModal
+        title="New version is available!"
+        text="Click here to download a new version."
+        confirmText="Download"
+        onConfirm={() => {
+          window.open(
+            'https://electron-update.commtechnologies.org/download',
+            '_blank',
+            'noopener noreferrer',
+          );
+          popModal();
+        }}
+      />,
+    );
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  React.useEffect(
+    () =>
+      electron?.onNewVersionAvailable?.(version => {
+        pushModal(
+          <UpdateModal
+            title={`Version ${version} is available!`}
+            text="Please restart to update."
+            confirmText="Restart"
+            onConfirm={() => electron?.updateToNewVersion?.()}
+          />,
+        );
+      }),
+    [pushModal],
+  );
+
+  return null;
+}
+
+export default UpdateModalHandler;