diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 086ebc80e..6128a2210 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -1,3 +1,14 @@
+========================================================================
+Amazon CloudWatch Agent Operator v3.5.0 (2026-06-05)
+========================================================================
+Enhancements:
+* [ApplicationSignals] Add Service Events and Dynamic Instrumentation environment variable injection
+* Refactor Apache/Nginx auto-instrumentation init containers
+* Go.mod dependency upgrades
+
+Bug Fixes:
+* Sync agent ClusterRole permissions with helm chart to fix RBAC issues
+
 ========================================================================
 Amazon CloudWatch Agent Operator v3.4.2 (2026-04-28)
 ========================================================================