--- a/mercurial/upgrade_utils/auto_upgrade.py	Mon Sep 16 15:36:44 2024 +0200
+++ b/mercurial/upgrade_utils/auto_upgrade.py	Thu Sep 12 16:27:58 2024 -0400
@@ -4,6 +4,9 @@
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
+
+from __future__ import annotations
+
 from ..i18n import _
 
 from .. import (