Make the type consistent for hashlib algorithm constants.  (Reviewed by Benjamin).
diff --git a/Misc/NEWS b/Misc/NEWS
index 54a647a..036e562 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,9 @@
 Library
 -------
 
+- Have hashlib.algorithms_available and hashlib.algorithms_guaranteed both
+  return sets instead of one returning a tuple and the other a frozenset.
+
 - Issue #10987: Fix the recursion limit handling in the _pickle module.
 
 - Issue #10983: Fix several bugs making tunnel requests in http.client.