diff --git a/packages/ui/README-old.md b/packages/ui/README-old.md
index e1153785b8..8e44afe656 100644
--- a/packages/ui/README-old.md
+++ b/packages/ui/README-old.md
@@ -1,5 +1,7 @@
 # Meteor UI
 
+XXX This README just talks about DomRange, and the information is out of date or may change before release.
+
 ## DomRange
 
 - - -