diff --git a/lib/connection.c b/lib/connection.c
index ef8e47e..a435ae5 100644
--- a/lib/connection.c
+++ b/lib/connection.c
@@ -1,5 +1,10 @@
 /*
- * Secure Network Transport Layer Library implementation.
+ * Secure Network Transport Layer Library v2 implementation.
+ * (sntllv2) it superseed all versions before due to the:
+ * - memory consumption
+ * - new features such as pulse emitting
+ * - performance optimization
+ *
  * This is a proprietary software. See COPYING for further details.
  *
  * (c) Askele Group 2013-2015 <http://askele.com>