diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index d94dab4b77..5ce6fff676 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -2,7 +2,7 @@
 
 ### Current dev branch (from r1.4.1) ###
 
-* [Nothing yet!]
+* Added MulticastDataSource for connecting to multicast streams.
 
 ### r1.4.1 ###