Note that PyNumber_Check() returns true for string and unicode objects.
diff --git a/Misc/NEWS b/Misc/NEWS
index bd37a94..d670835 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -691,6 +691,10 @@
C API
-----
+- PyNumber_Check() now returns true for string and unicode objects.
+ This is a result of these types having a partially defined
+ tp_as_number slot.
+
- The string object's layout has changed: the pointer member
ob_sinterned has been replaced by an int member ob_sstate. On some
platforms (e.g. most 64-bit systems) this may change the offset of