diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 6a4fb87..ad6d732 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,4 @@
+* 2.1.0 - new feature: ? and => operators; and locale fix for regions with comma number seperator
 * 2.0.3 - Include built-in FSI printer module
 * 2.0.2 - Breaking change: Replace "." with "_" in package names (#245) 
 * 2.0.1 - .NET5, R 4.x, and Apple Silicon support