diff -urpN old/workflow_ng/workflow_ng/modules/workflow_ng_system.inc new/workflow_ng/workflow_ng/modules/workflow_ng_system.inc
--- old/workflow_ng/workflow_ng/modules/workflow_ng_system.inc	2008-03-02 21:22:22.000000000 +0530
+++ new/workflow_ng/workflow_ng/modules/workflow_ng_system.inc	2008-03-15 01:52:17.546875000 +0530
@@ -67,7 +67,13 @@ function system_condition_info() {
       ),
       '#description' => t('Check a boolean value, i.e. TRUE or FALSE.'),
       '#module' => 'System',
-    ),
+    ),
+    'workflow_ng_condition_entity_change' => array(
+      '#label' => t('Check changed entity'),
+      '#arguments' => array(),
+      '#description' => t('Check an item exposed by token, and compare to the unchanged token. If ther was a any change condition will return TRUE'),
+      '#module' => 'System',
+    ),    
   );
 }
 
@@ -107,10 +113,31 @@ function workflow_ng_condition_token_num
 function workflow_ng_condition_check_boolean($boolean) {
   return (bool)$boolean;
 }
-
-
-
-
+
+
+/*
+ * Condition implementation: Content change check
+ */
+function workflow_ng_condition_entity_change($settings, &$arguments, &$log) {
+  extract( workflow_ng_token_replace_all(array('tokens'), $settings, $arguments, $log) );
+  $updated_tokens = explode("\r\n", $tokens);
+  
+  //Copy the settings and change the token arguments to 'unchanged'.
+  $unchanged_settings = $settings; 
+  
+  //Get the 'unchanged' tokens.
+  foreach ($unchanged_settings['tokens_args'] as $args) {
+  	$unchanged_arguments[] = $args . t('_unchanged');
+  }
+  $unchanged_settings['tokens_args'] = $unchanged_arguments;
+  $unchanged_settings['tokens'] = str_replace (':', '_unchanged:', $unchanged_settings['tokens']);
+  $tokens = NULL;
+  extract( workflow_ng_token_replace_all(array('tokens'), $unchanged_settings, $arguments, $log) );
+  $unchanged_tokens = explode("\r\n", $tokens);
+  
+  return ($updated_tokens != $unchanged_tokens);
+}
+
 
 /*
  * Implementation of hook_action_info()
diff -urpN old/workflow_ng/workflow_ng/modules/workflow_ng_system_forms.inc new/workflow_ng/workflow_ng/modules/workflow_ng_system_forms.inc
--- old/workflow_ng/workflow_ng/modules/workflow_ng_system_forms.inc	2008-03-08 16:31:40.000000000 +0530
+++ new/workflow_ng/workflow_ng/modules/workflow_ng_system_forms.inc	2008-03-15 02:21:47.109375000 +0530
@@ -1,4 +1,4 @@
-<?php
+s<?php
 
 /**
  * @file Workflow-ng configuration forms for the system module
@@ -33,6 +33,28 @@ function workflow_ng_condition_token_com
   $settings = workflow_ng_token_get_settings(array('text1', 'text2'), $form_values);
   return $settings + array('regex' => $form_values['regex']);
 }
+
+/*
+ * Condition: Content change configuration form
+ */
+function workflow_ng_condition_entity_change_form($settings = array(), $argument_info) {
+  $form = array();
+  $form['tokens'] = array(
+    '#type' => 'textarea',
+    '#title' => t('Token items'),
+    '#required' => TRUE,
+    '#description' => t('A list of tokens the needs to be comapred, one on each line. <br/>
+    	For example, [node:title] will be compared to [node_unchanged:title].'),
+    '#default_value' => $settings['tokens'],
+  );
+  workflow_ng_token_replacement_help($form, $argument_info);
+  return $form;
+}
+
+function workflow_ng_condition_entity_change_submit($form_id, $form_values) {
+  return workflow_ng_token_get_settings(array('tokens'), $form_values);
+}
+
 
 /*
  * Condition: token enabled numeric comparison configuration form