Deprecate the sets module.
diff --git a/Misc/NEWS b/Misc/NEWS
index 0319fc1..754ceae 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -109,6 +109,9 @@
 Library
 -------
 
+- The sets module has been deprecated.  Use the built-in set/frozenset types
+  instead.
+
 - Bug #1610795: make ctypes.util.find_library work on BSD systems.
 
 - Fixes for 64-bit Windows: In ctypes.wintypes, correct the