diff --git a/src/experimental/note.md b/src/experimental/note.md
index f402fec5..e7d0ec54 100644
--- a/src/experimental/note.md
+++ b/src/experimental/note.md
@@ -21,5 +21,9 @@ new:
 
 - rands_disk, rands_sphere?
 
+- sorted, contains
+
 deprecated:
-    rails2sections: use m_transpose
\ No newline at end of file
+    rails2sections: use m_transpose
+    has
+    bsearch?
\ No newline at end of file