diff --git a/doc/releases/release-notes-2.6.rst b/doc/releases/release-notes-2.6.rst
index 7c6e372c129..0316bd3de21 100644
--- a/doc/releases/release-notes-2.6.rst
+++ b/doc/releases/release-notes-2.6.rst
@@ -134,6 +134,8 @@ Architectures
 
     * Added initial support for Arm v8.1-m and Cortex-M55
 
+    * Added support for preempting threads while they are performing secure calls in Cortex-M.
+
   * AARCH64
 
 * POSIX