Patch #1686487: you can now pass any mapping after '**' in function calls.
diff --git a/Misc/NEWS b/Misc/NEWS
index a0692c4..f65fece 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and builtins
 -----------------
 
+- Patch #1686487: you can now pass any mapping after '**' in function
+  calls.
+
 - except clauses may now be spelled either "except E, target:" or
   "except E as target:". This is to provide forwards compatibility with
   Python 3.0.