Update release notes on master.
diff --git a/activemq-cpp/RELEASE_NOTES.txt b/activemq-cpp/RELEASE_NOTES.txt
index ecbdfc5..fc910c1 100644
--- a/activemq-cpp/RELEASE_NOTES.txt
+++ b/activemq-cpp/RELEASE_NOTES.txt
@@ -3,6 +3,16 @@
=========================================================================
=========================================================================
+== Release Notes for ActiveMQ CPP 3.9.3 ==
+=========================================================================
+
+Bug
+
+ [AMQCPP-594] - ActiveMQ-CPP does not build on Solaris 11
+ [AMQCPP-595] - ActiveMQMessageProducer sends producer registration async which causes
+ it to miss possible exceptions on creation like security exceptions.
+
+=========================================================================
== Release Notes for ActiveMQ CPP 3.9.2 ==
=========================================================================