diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 570f601c584a47359a5f2ca5f1303d54f5ae224c..cc19e70a8628300ce8c018031c5ce2312470c2a9 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -36,6 +36,9 @@ CONFIGURATION FILE CHANGES
 * Several new configuration parameters can be used to specify architectural
   details of the node: Sockets, CoresPerSocket, and ThreadsPerCore.
 
+* For BlueGene systems only: Alternate BlrtsImage, LinuxImage, MloaderImage,
+  and RamDiskImage file can be specified along with specific groups that 
+  can use them.
 
 OTHER CHANGES