diff --git a/module/bug/css/browse.css b/module/bug/css/browse.css
index 58959a72e1..922e349ec9 100644
--- a/module/bug/css/browse.css
+++ b/module/bug/css/browse.css
@@ -7,3 +7,5 @@
 .active4  {background:#FFF100;}
 .resolved a, .active1 a, .active2 a, .active3 a{color:white; text-decoration:none}
 .active4 a {color:blue; text-decoration:none}
+.confirm0 {color:red}
+.confirm1 {color:green}
diff --git a/module/bug/view/browse.html.php b/module/bug/view/browse.html.php
index a29374619e..64ab4b3e26 100644
--- a/module/bug/view/browse.html.php
+++ b/module/bug/view/browse.html.php
@@ -104,10 +104,11 @@ var customed   = <?php echo (int)$customed;?>;
           <td><?php echo $lang->bug->severityList[$bug->severity]?></td>
           <td><?php echo $lang->bug->priList[$bug->pri]?></td>
 
-          <td class='a-left nobr'><?php echo html::a($bugLink, $bug->title);?></td>
+          <?php $class = 'confirm' . $bug->confirm;?>
+          <td class='a-left nobr <?php echo $class;?>'><?php echo '[' . $lang->bug->confirmList[$bug->confirm] . ']'; echo html::a($bugLink, $bug->title);?></td>
 
           <?php if($this->cookie->windowWidth >= $this->config->wideSize):?>
-          <td><?php echo $lang->bug->statusList[$bug->status];echo '[' . $lang->bug->confirmList[$bug->confirm] . ']';?></td>
+          <td><?php echo $lang->bug->statusList[$bug->status];?></td>
           <?php endif;?>
 
           <?php if($browseType == 'needconfirm'):?>
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 766d2ba9da..2de907edbc 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -48,6 +48,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '0_4beta')
         {
@@ -66,6 +67,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '0_5beta')
         {
@@ -82,6 +84,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_4To1_5();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '0_6beta')
         {
@@ -97,6 +100,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_4To1_5();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_0beta')
         {
@@ -112,6 +116,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_0rc1')
         {
@@ -126,6 +131,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_0rc2')
         {
@@ -139,6 +145,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_0')
         {
@@ -151,6 +158,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_0_1')
         {
@@ -162,6 +170,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_1')
         {
@@ -172,6 +181,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_2')
         {
@@ -181,6 +191,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_3')
         {
@@ -189,6 +200,7 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_4')
         {
@@ -196,21 +208,29 @@ class upgradeModel extends model
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '1_5')
         {
             $this->upgradeFrom1_5To2_0();
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '2_0')
         {
             $this->upgradeFrom2_0To2_1();
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
         }
         elseif($fromVersion == '2_1')
         {
             $this->upgradeFrom2_1To2_2();
+            $this->upgradeFrom2_2To2_3();
+        }
+        elseif($fromVersion == '2_2')
+        {
+            $this->upgradeFrom2_2To2_3();
         }
 
         $this->setting->setSN();
@@ -241,6 +261,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '0_4beta')
         {
@@ -256,6 +278,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '0_5beta')
         {
@@ -270,6 +294,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '0_6beta')
         {
@@ -283,6 +309,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_0beta')
         {
@@ -295,6 +323,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_0rc1')
         {
@@ -306,6 +336,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_0rc2' || $fromVersion == '1_0' || $fromVersion == '1_0_1')
         {
@@ -316,6 +348,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_1')
         {
@@ -325,6 +359,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_2')
         {
@@ -333,6 +369,8 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_3')
         {
@@ -340,25 +378,38 @@ class upgradeModel extends model
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_4')
         {
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.4'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '1_5')
         {
             $confirmContent .= file_get_contents($this->getUpgradeFile('1.5'));
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '2_0')
         {
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.0'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
         elseif($fromVersion == '2_1')
         {
             $confirmContent .= file_get_contents($this->getUpgradeFile('2.1'));
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
+        }
+        elseif($fromVersion == '2_2')
+        {
+            $confirmContent .= file_get_contents($this->getUpgradeFile('2.2'));
         }
 
         return str_replace('zt_', $this->config->db->prefix, $confirmContent);
@@ -559,6 +610,18 @@ class upgradeModel extends model
         if(!$this->isError()) $this->setting->updateVersion('2.2');
     }
 
+    /**
+     * Upgrade from 2.2 to 2.3.
+     * 
+     * @access private
+     * @return void
+     */
+    private function upgradeFrom2_2To2_3()
+    {
+        $this->execSQL($this->getUpgradeFile('2.2'));
+        if(!$this->isError()) $this->setting->updateVersion('2.3');
+    }
+
     /**
      * Update company field.
      *
@@ -799,6 +862,17 @@ class upgradeModel extends model
         }
     }
 
+    /**
+     * Update confirm of Bug. 
+     * 
+     * @access public
+     * @return void
+     */
+    public function updateConfirmOfBug()
+    {
+        $this->dao->update(TABLE_BUG)->set('confirm')->eq(1)->where('status')->eq('resolved')->exec();
+    }
+
     /**
      * Get the upgrade sql file.
      *