diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 56c52f881..5e60a81c3 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -16,6 +16,11 @@ and references prefixed by '!' refer to a
 Release 3.40
 ------------
 
+### Availability
+
+This release is available from:
+<https://www.nsnam.org/release/ns-allinone-3.40.tar.bz2>
+
 ### Supported platforms
 
 This release is intended to work on systems with the following minimal