diff -r bbbb5213d043 -r 53e4f44ba0e8 mercurial/configitems.py
--- a/mercurial/configitems.py	Fri Nov 04 22:59:16 2022 -0400
+++ b/mercurial/configitems.py	Mon Nov 07 09:25:20 2022 +0100
@@ -2123,7 +2123,7 @@
 coreconfigitem(
     b'server',
     b'pullbundle',
-    default=False,
+    default=True,
 )
 coreconfigitem(
     b'server',