diff -r 6d2ddea0721a -r f7086f6173f8 mercurial/configitems.py
--- a/mercurial/configitems.py	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/configitems.py	Tue Feb 01 16:36:20 2022 +0100
@@ -1306,9 +1306,10 @@
     # Enable this dirstate format *when creating a new repository*.
     # Which format to use for existing repos is controlled by .hg/requires
     b'format',
-    b'exp-rc-dirstate-v2',
+    b'use-dirstate-v2',
     default=False,
     experimental=True,
+    alias=[(b'format', b'exp-rc-dirstate-v2')],
 )
 coreconfigitem(
     b'format',
@@ -1880,7 +1881,7 @@
     default=b'skip',
     experimental=True,
 )
-# experimental as long as format.exp-rc-dirstate-v2 is.
+# experimental as long as format.use-dirstate-v2 is.
 coreconfigitem(
     b'storage',
     b'dirstate-v2.slow-path',