diff -r 6edc8800dbc3 -r b669e40fbbd6 mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Tue Mar 02 09:33:25 2021 -0800
+++ b/mercurial/debugcommands.py	Wed Sep 08 10:47:10 2021 +0200
@@ -1474,8 +1474,8 @@
     filename.
 
     Note that this does *not* mean that this repairs future affected revisions,
-    that needs a separate fix at the exchange level that hasn't been written yet
-    (as of 5.9rc0).
+    that needs a separate fix at the exchange level that was introduced in
+    Mercurial 5.9.1.
 
     There is a `--paranoid` flag to test that the fast implementation is correct
     by checking it against the slow implementation. Since this matter is quite