--- /dev/null
+<?php
+
+namespace Drupal\Core\Updater;
+
+/**
+ * Defines a Exception class for the Drupal\Core\Updater\Updater class
+ * hierarchy.
+ *
+ * This is identical to the base Exception class, we just give it a more
+ * specific name so that call sites that want to tell the difference can
+ * specifically catch these exceptions and treat them differently.
+ */
+class UpdaterException extends \Exception {}