diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 8a9efbecc753..82187566ad45 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -297,7 +297,10 @@ made:
 
 =item *
 
-XXX
+F<porting/globvar.t> now uses the more portable C<nm -P ...> to fetch
+the names defined in an object file.  The parsing of the names found
+in the object is now separated from processing them to handle the
+duplication between local and global definitions on AIX.  [GH #21637]
 
 =back