Issue #8837: Remove "O?" format of PyArg_Parse*() functions. The format is no
used anymore and it was never documented.
diff --git a/Misc/NEWS b/Misc/NEWS
index 9a8da70..2ab9640 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and Builtins
 -----------------
 
+- Issue #8837: Remove "O?" format of PyArg_Parse*() functions. The format is no
+  used anymore and it was never documented.
+
 - Issue #2844: Make int('42', n) consistently raise ValueError for
   invalid integers n (including n = -909).