this statement isn't actually true
diff --git a/Doc/whatsnew/3.1.rst b/Doc/whatsnew/3.1.rst
index 5d121e9..0ae5ca4 100644
--- a/Doc/whatsnew/3.1.rst
+++ b/Doc/whatsnew/3.1.rst
@@ -454,9 +454,7 @@
   for passing typing safety information and a less complicated signature
   for calling a destructor.
 
-  The old type had a problematic API and is now deprecated.  To ease
-  transitioning code, the new type was implemented as a subtype of
-  :ctype:`PyCObject` API.
+  The old type had a problematic API and is now deprecated.
 
   (Contributed by Larry Hastings; :issue:`5630`.)