diff --git a/src/experimental/note.txt b/src/experimental/note.txt
index 74d9ae8b..81134e13 100644
--- a/src/experimental/note.txt
+++ b/src/experimental/note.txt
@@ -10,6 +10,4 @@ Preview
 - util/has
 - util/dedup
 - util/bsearch for a sorted lt by z, y, x
-
-bugs:
-- util/sort: z not sorted
\ No newline at end of file
+- util/sort supports by = "vt"
\ No newline at end of file