diff --git a/notes/mzscheme/HISTORY b/notes/mzscheme/HISTORY
index 9243044fe2..8c6ea03bf8 100644
--- a/notes/mzscheme/HISTORY
+++ b/notes/mzscheme/HISTORY
@@ -1,3 +1,7 @@
+Version 299.405
+Added syntax-language+country
+MzLib: added object-method-arity-includes? to class.ss
+
 Version 299.403
 Added ephemerons
 Added keyword values (#: prefix) and keyword? predicate