version info added
diff --git a/demo/GPIOdemo.cfg b/demo/GPIOdemo.cfg
index 7fa7370..fadf3d3 100755
--- a/demo/GPIOdemo.cfg
+++ b/demo/GPIOdemo.cfg
@@ -7,7 +7,7 @@
 ##
 ## Contributors:
 ##   Gyorgy Rethy
-##
+##  version R2A
 ###############################################################################
 [MODULE_PARAMETERS]
 #GPIO pin number to which the LED is connected to
diff --git a/demo/GPIOdemo_Led_Button.ttcn b/demo/GPIOdemo_Led_Button.ttcn
index 2d77d5b..cfc5afd 100755
--- a/demo/GPIOdemo_Led_Button.ttcn
+++ b/demo/GPIOdemo_Led_Button.ttcn
@@ -7,7 +7,7 @@
 //
 // Contributors:
 //   Gyorgy Rethy
-//
+// version R2A
 ///////////////////////////////////////////////////////////////////////////////
 
 module GPIOdemo_Led_Button {
diff --git a/demo/Readme.txt b/demo/Readme.txt
index 7752a07..0436276 100755
--- a/demo/Readme.txt
+++ b/demo/Readme.txt
@@ -7,7 +7,7 @@
 ##
 ## Contributors:
 ##   Gyorgy Rethy
-##
+##  version R2A
 ###############################################################################
 
 The GPIO demo has dependence of (is using) the TCCFileIO_Functions.ttcn and
diff --git a/src/GPIOPinPort.ttcn b/src/GPIOPinPort.ttcn
index ba63d02..4da0155 100644
--- a/src/GPIOPinPort.ttcn
+++ b/src/GPIOPinPort.ttcn
@@ -7,7 +7,7 @@
 //
 // Contributors:
 // Lenard Nagy
-//
+// version R2A
 ///////////////////////////////////////////////////////////////////////////////
 
 // Raspberry Pi GPIO port
diff --git a/src/GPIO_Common.ttcn b/src/GPIO_Common.ttcn
index 0691109..39ecfcc 100755
--- a/src/GPIO_Common.ttcn
+++ b/src/GPIO_Common.ttcn
@@ -7,7 +7,7 @@
 //
 // Contributors:
 // Gyorgy Rethy
-//
+// version R2A
 ////////////////////////////////////////////////////////////////////////
 // Library to handle Raspberry Pi GPIO port common utility functions
 //   Dependencies
diff --git a/src/GPIO_Pin_Port.cc b/src/GPIO_Pin_Port.cc
index bdff384..f8e5df3 100644
--- a/src/GPIO_Pin_Port.cc
+++ b/src/GPIO_Pin_Port.cc
@@ -7,7 +7,7 @@
 //
 // Contributors:
 // Lenard Nagy
-//
+// version R2A
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "GPIO_Pin_Port.hh"
diff --git a/src/GPIO_Pin_Port.hh b/src/GPIO_Pin_Port.hh
index 41783cc..1390ad8 100644
--- a/src/GPIO_Pin_Port.hh
+++ b/src/GPIO_Pin_Port.hh
@@ -7,7 +7,7 @@
 //
 // Contributors:
 // Lenard Nagy
-//
+// version R2A
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifndef GPIO__Pin__Port_HH