Update to Drupal 8.1.0. For more information, see https://www.drupal.org/drupal-8.1.0-release-notes

core/modules/user/user.install

@@ -85,3 +85,25 @@ function user_install() {
     ))
     ->save();
 }
+
+/**
+ * @addtogroup updates-8.1.0-beta
+ * @{
+ */
+
+/**
+ * Fix invalid token in the status_blocked email body.
+ */
+function user_update_8100() {
+  $config_factory = \Drupal::configFactory();
+  $config = $config_factory->getEditable('user.mail');
+  $mail = $config->get('status_blocked');
+  if (strpos($mail['body'], '[site:account-name]') !== FALSE) {
+    $mail['body'] = str_replace('[site:account-name]', '[site:name]', $mail['body']);
+    $config->set('status_blocked', $mail)->save(TRUE);
+  }
+}
+
+/**
+ * @} End of "addtogroup updates-8.1.0-beta".
+ */