gh-102304: Add a What's New Entry About _Py_RefTotal (gh-102845)
https://github.com/python/cpython/issues/102304
diff --git a/Doc/whatsnew/3.12.rst b/Doc/whatsnew/3.12.rst
index cdd26cd..af52c7c 100644
--- a/Doc/whatsnew/3.12.rst
+++ b/Doc/whatsnew/3.12.rst
@@ -1036,6 +1036,11 @@
functions that set the error indicator now normalize the exception
before storing it. (Contributed by Mark Shannon in :gh:`101578`.)
+* ``_Py_RefTotal`` is no longer authoritative and only kept around
+ for ABI compabitility. Note that it is an internal global and only
+ available on debug builds. If you happen to be using it then you'll
+ need to start using ``_Py_GetGlobalRefTotal()``.
+
Deprecated
----------
