implement missing inequality on WeakSet
diff --git a/Misc/NEWS b/Misc/NEWS
index 391ecc5..7a72030 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,6 +15,8 @@
 Library
 -------
 
+- Implement inequality on weakref.WeakSet.
+
 - Issue #17981: Closed socket on error in SysLogHandler.
 
 - Issue #17754: Make ctypes.util.find_library() independent of the locale.