Issue #16453: Fix equality testing of dead weakref objects.
Also add tests for ordering and hashing.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4fc124d..f797d95 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,8 @@
 Core and Builtins
 -----------------
 
+- Issue #16453: Fix equality testing of dead weakref objects.
+
 - Issue #9535: Fix pending signals that have been received but not yet
   handled by Python to not persist after os.fork() in the child process.