Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
diff --git a/Misc/NEWS b/Misc/NEWS
index 37bb634..5d2a267 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
 Core and Builtins
 -----------------
 
+- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
+
 Library
 -------