diff --git a/VERSION b/VERSION
index d00d9ba64a..8eaaba3530 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.2.6
+8.3.stable
diff --git a/config/config.php b/config/config.php
index 8820ae3218..f37fd929c1 100644
--- a/config/config.php
+++ b/config/config.php
@@ -17,7 +17,7 @@ if(!function_exists('getWebRoot')){function getWebRoot(){}}
 
 /* Basic settings. */
 $config = new config();
-$config->version      = '8.2.6';             // The version of zentaopms. Don't change it.
+$config->version      = '8.3';             // The version of zentaopms. Don't change it.
 $config->charset      = 'UTF-8';           // The charset of zentaopms.
 $config->cookieLife   = time() + 2592000;  // The cookie life time.
 $config->timezone     = 'Asia/Shanghai';   // The time zone setting, for more see http://www.php.net/manual/en/timezones.php
diff --git a/module/upgrade/lang/en.php b/module/upgrade/lang/en.php
index 45f2bd7c8b..9f12ca27c7 100644
--- a/module/upgrade/lang/en.php
+++ b/module/upgrade/lang/en.php
@@ -107,3 +107,4 @@ $lang->upgrade->fromVersions['8_2_2']     = '8.2.2';
 $lang->upgrade->fromVersions['8_2_3']     = '8.2.3';
 $lang->upgrade->fromVersions['8_2_4']     = '8.2.4';
 $lang->upgrade->fromVersions['8_2_5']     = '8.2.5';
+$lang->upgrade->fromVersions['8_2_6']     = '8.2.6';
diff --git a/module/upgrade/lang/zh-cn.php b/module/upgrade/lang/zh-cn.php
index ce58e80579..c93b0fa66b 100644
--- a/module/upgrade/lang/zh-cn.php
+++ b/module/upgrade/lang/zh-cn.php
@@ -107,3 +107,4 @@ $lang->upgrade->fromVersions['8_2_2']     = '8.2.2';
 $lang->upgrade->fromVersions['8_2_3']     = '8.2.3';
 $lang->upgrade->fromVersions['8_2_4']     = '8.2.4';
 $lang->upgrade->fromVersions['8_2_5']     = '8.2.5';
+$lang->upgrade->fromVersions['8_2_6']     = '8.2.6';
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index fa49847e27..40e7ca279c 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -148,6 +148,11 @@ class upgradeModel extends model
             case '8_2_3':
             case '8_2_4':
             case '8_2_5':
+            case '8_2_6':
+                $this->execSQL($this->getUpgradeFile('8.2.1'));
+                $this->adjustDocModule();
+                $this->updateFileObjectID();
+                $this->moveDocContent();
 
             default: if(!$this->isError()) $this->setting->updateVersion($this->config->version);
         }
@@ -231,6 +236,7 @@ class upgradeModel extends model
         case '8_2_3':
         case '8_2_4':
         case '8_2_5':
+        case '8_2_6':     $confirmContent .= file_get_contents($this->getUpgradeFile('8.2.6'));
         }
         return str_replace('zt_', $this->config->db->prefix, $confirmContent);
     }
@@ -1304,6 +1310,15 @@ class upgradeModel extends model
      */
     public function moveDocContent()
     {
+        $descDoc = $this->dao->query('DESC ' .  TABLE_DOC)->fetchAll();
+        $processFields = 0;
+        foreach($descDoc as $field)
+        {
+            if($field->Field == 'content' or $field->Field == 'digest' or $field->Field == 'url') $processFields ++; 
+        }
+        if($processFields < 3) return true;
+
+
         $this->dao->exec('TRUNCATE TABLE ' . TABLE_DOCCONTENT);
         $stmt = $this->dao->select('id,title,digest,content,url')->from(TABLE_DOC)->query();
         $fileGroups = $this->dao->select('id,objectID')->from(TABLE_FILE)->where('objectType')->eq('doc')->fetchGroup('objectID', 'id');