diff --git a/doc/website/release-notes/iceoryx-unreleased.md b/doc/website/release-notes/iceoryx-unreleased.md
index 3c0bcc59f5..e568e1e911 100644
--- a/doc/website/release-notes/iceoryx-unreleased.md
+++ b/doc/website/release-notes/iceoryx-unreleased.md
@@ -9,6 +9,7 @@
 - The minimal supported GCC compiler is now 8.3
 - The required C++ standard is now C++17
 - Experimental 32-bit support for all platforms supporting 64-bit atomic operations
+- Experimental support for communication between 32-bit and 64-bit applications
 
 **Features:**