diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 7b06c6ab5..beb891f22 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -4,4 +4,4 @@
 
 ## Other code changes
 
-* no changes
\ No newline at end of file
+* Update R5 for revised ConceptMap in R5 cibuild, and release new core library for R5 build process