diff --git a/doc/release-notes/iceoryx2-unreleased.md b/doc/release-notes/iceoryx2-unreleased.md
index a2babd171..a951eb50a 100644
--- a/doc/release-notes/iceoryx2-unreleased.md
+++ b/doc/release-notes/iceoryx2-unreleased.md
@@ -17,6 +17,7 @@
 * Add `--send-copy` flag to Benchmark to consider mem operations [#483](https://github.com/eclipse-iceoryx/iceoryx2/issues/483)
 * Support for slices in the C++ bindings [#490](https://github.com/eclipse-iceoryx/iceoryx2/issues/490)
 * Add relocatable `SlotMap` [#504](https://github.com/eclipse-iceoryx/iceoryx2/issues/504)
+* Add `ResizableSharedMemory` [#497](https://github.com/eclipse-iceoryx/iceoryx2/issues/497)
 
 ### Bugfixes