diff --git a/doc/release-notes/iceoryx2-unreleased.md b/doc/release-notes/iceoryx2-unreleased.md
index 7489f1ff..6dd00bea 100644
--- a/doc/release-notes/iceoryx2-unreleased.md
+++ b/doc/release-notes/iceoryx2-unreleased.md
@@ -62,6 +62,7 @@
 * Rename `iox2_publisher_loan` to `iox2_publisher_loan_slice_uninit` [#490](https://github.com/eclipse-iceoryx/iceoryx2/issues/490)
     1. C always loans slices, for a single element, specify the
        `number_of_elements` to be 1
+* APIs to retrieve the value of `UniquePortIds` from the C/C++ bindings [#500](https://github.com/eclipse-iceoryx/iceoryx2/issues/500)
 
 ### API Breaking Changes