diff --git a/RELEASE.md b/RELEASE.md
index b7262fb..34a951a 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -23,6 +23,10 @@ files respectively, in the configure/ directory of the appropriate release of th
 Release Notes
 =============
 
+R2-4 (September 8, 2015)
+* Updated Makefile and st.cmd to be compatible with ADCore R2-4 and ADExample R2-0.
+* Updated autoconverted .edl, .ui, and .opi files.
+
 R2-3 (16-April-2015)
 ----
 * Upgraded the Andor SDK version used to 2.99.3 on both Windows and Linux.