List #10519 #12564 in 4.1.0 release notes

Author: michaelklishin

release-notes/4.1.0.md

@@ -118,6 +118,13 @@ This section can be incomplete and will be expanded as 4.1 approaches its releas
 
     GitHub issue: [#12599](https://github.com/rabbitmq/rabbitmq-server/pull/12599)
 
+ * Nodes will now fall back to system CA certificate list (if available) when no CA certificate
+   is explicitly configured.
+
+   Contributed by @LoisSotoLopez.
+
+   GitHub issue: [#10519](https://github.com/rabbitmq/rabbitmq-server/issues/10519), [#12564](https://github.com/rabbitmq/rabbitmq-server/pull/12564)
+
  * Support for Multiple Routing Keys in AMQP 1.0 via `x-cc` Message Annotation.
 
    AMQP 1.0 publishers now can set multiple routing keys by using the `x-cc` message annotation.