diff --git a/src/outfile/src/epanet_output.c b/src/outfile/src/epanet_output.c
index 6e0c63d..7d46e03 100644
--- a/src/outfile/src/epanet_output.c
+++ b/src/outfile/src/epanet_output.c
@@ -2,8 +2,9 @@
 //
 //   epanet_output.c -- API for reading results from EPANET binary output file
 //
-//   Version:    0.30
-//   Date        09/06/2017
+//   Version:    0.40
+//   Date        04/02/2019
+//               09/06/2017
 //               06/17/2016
 //               08/05/2014
 //               05/21/2014
diff --git a/src/util/cstr_helper.c b/src/util/cstr_helper.c
index 13ca1c4..9106446 100644
--- a/src/util/cstr_helper.c
+++ b/src/util/cstr_helper.c
@@ -1,3 +1,15 @@
+/*
+ ******************************************************************************
+ Project:      OWA EPANET
+ Version:      2.2
+ Module:       util/cstr_helper.c
+ Description:  Provides a simple interface for managing files
+ Authors:      see AUTHORS
+ Copyright:    see AUTHORS
+ License:      see LICENSE
+ Last Updated: 04/02/2019
+ ******************************************************************************
+*/
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/src/util/cstr_helper.h b/src/util/cstr_helper.h
index 55f71d0..ba4aac9 100644
--- a/src/util/cstr_helper.h
+++ b/src/util/cstr_helper.h
@@ -1,3 +1,15 @@
+/*
+ ******************************************************************************
+ Project:      OWA EPANET
+ Version:      2.2
+ Module:       util/cstr_helper.h
+ Description:  Provides a simple interface for managing files
+ Authors:      see AUTHORS
+ Copyright:    see AUTHORS
+ License:      see LICENSE
+ Last Updated: 04/02/2019
+ ******************************************************************************
+*/
 
 #ifndef CSTR_HELPER_H_
 #define CSTR_HELPER_H_