diff --git a/firmware_handler.hpp b/firmware_handler.hpp
index 2b2c7d3..def20a8 100644
--- a/firmware_handler.hpp
+++ b/firmware_handler.hpp
@@ -98,6 +98,12 @@
         verificationStarted,
         /** The verification process has completed. */
         verificationCompleted,
+        /** The update process is pending. */
+        updatePending,
+        /** The update process has started. */
+        updateStarted,
+        /** The update has completed (optional state to reach) */
+        updatedCompleted,
     };
 
     /**