Issue #1717: rename tp_compare to tp_reserved.  I'll change the
type of tp_compare in a separate commit, for ease of reversion
should things go wrong.
diff --git a/Misc/NEWS b/Misc/NEWS
index 96d0e73..36dfa2c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -14,9 +14,8 @@
 
 - Issue #1717: Removed builtin cmp() function, dropped tp_compare
   slot, the C API functions PyObject_Compare and PyUnicode_Compare and
-  the type definition cmpfunc.  The tp_compare slot is reserved for
-  future usage.  An attempt to initialize a type with a nonzero
-  tp_compare slot will raise TypeError.
+  the type definition cmpfunc.  The tp_compare slot has been renamed
+  to tp_reserved, and is reserved for future usage.
 
 - Issue #4707: round(x, n) now returns an integer if x is an integer.
   Previously it returned a float.