diff --git a/module/action/lang/zh-cn.php b/module/action/lang/zh-cn.php
index 25bb89d4d6..04e7699c0f 100644
--- a/module/action/lang/zh-cn.php
+++ b/module/action/lang/zh-cn.php
@@ -30,6 +30,7 @@ $lang->action->desc->closed    = '$date, 由 <strong>$actor</strong> 关闭。';
 $lang->action->desc->commented = '$date, 由 <strong>$actor</strong> 发表评论。';
 $lang->action->desc->activated = '$date, 由 <strong>$actor</strong> 激活。';
 $lang->action->desc->moved     = '$date, 由 <strong>$actor</strong> 移动，之前为 "$extra"';
+$lang->action->desc->confirmed = '$date, 由 <strong>$actor</strong> 确认需求变动，最新版本为<strong>#$extra</strong>';
 $lang->action->desc->diff1     = '修改了 <strong><i>%s</i></strong>，旧值为 "%s"，新值为 "%s"。<br />';
 $lang->action->desc->diff2     = '修改了 <strong><i>%s</i></strong>，区别为：<blockquote>%s</blockquote>';
 
@@ -42,6 +43,7 @@ $lang->action->label->activated = '激活了';
 $lang->action->label->resolved  = '解决了';
 $lang->action->label->reviewed  = '评审了';
 $lang->action->label->moved     = '移动了';
+$lang->action->label->confirmed = '确认了需求，';
 $lang->action->label->story     = '需求|story|view|storyID=%s';
 $lang->action->label->task      = '任务|task|view|taskID=%s';
 $lang->action->label->bug       = 'Bug|bug|view|bugID=%s';
diff --git a/module/group/lang/zh-cn.php b/module/group/lang/zh-cn.php
index 95be6347d8..83103b2817 100644
--- a/module/group/lang/zh-cn.php
+++ b/module/group/lang/zh-cn.php
@@ -127,6 +127,7 @@ $lang->resource->task->create = 'create';
 $lang->resource->task->edit   = 'edit';
 $lang->resource->task->delete = 'delete';
 $lang->resource->task->view   = 'view';
+$lang->resource->task->confirmStoryChange  = 'confirmStoryChange';
 $lang->resource->task->ajaxGetUserTasks    = 'ajaxGetUserTasks';
 $lang->resource->task->ajaxGetProjectTasks = 'ajaxGetProjectTasks';
 
@@ -148,13 +149,15 @@ $lang->resource->bug->resolve = 'resolve';
 $lang->resource->bug->activate= 'activate';
 $lang->resource->bug->close   = 'close';
 $lang->resource->bug->report  = 'reportChart';
-$lang->resource->bug->ajaxGetUserBugs = 'ajaxGetUserBugs';
+$lang->resource->bug->confirmStoryChange  = 'confirmStoryChange';
+$lang->resource->bug->ajaxGetUserBugs     = 'ajaxGetUserBugs';
 
 $lang->resource->testcase->index   = 'index';
 $lang->resource->testcase->browse  = 'browse';
 $lang->resource->testcase->create  = 'create';
 $lang->resource->testcase->view    = 'view';
 $lang->resource->testcase->edit    = 'edit';
+$lang->resource->testcase->confirmStoryChange = 'confirmStoryChange';
 
 $lang->resource->testtask->index       = 'index';
 $lang->resource->testtask->create      = 'create';
diff --git a/module/project/view/task.html.php b/module/project/view/task.html.php
index ecd34e251c..800ea4e8a2 100644
--- a/module/project/view/task.html.php
+++ b/module/project/view/task.html.php
@@ -57,7 +57,18 @@
       <td><?php echo $task->left;?></td>
       <td><?php echo $lang->task->typeList[$task->type];?></td>
       <td class=<?php if(isset($task->delay)) echo 'delayed';?>><?php if(substr($task->deadline, 0, 4) > 0) echo $task->deadline;?></td>
-      <td class=<?php echo $task->status;?> ><?php echo $lang->task->statusList[$task->status];?></td>
+      <td class=<?php echo $task->status;?> >
+        <?php
+        if($task->storyStatus == 'active' and $task->latestStoryVersion > $task->storyVersion)
+        {
+            echo "<span class='warning'>{$lang->story->changed}</span> ";
+        }
+        else
+        {
+            echo $lang->task->statusList[$task->status];
+        }
+        ?>
+      </td>
       <td class='a-left nobr'>
         <?php 
         if($task->storyID)
diff --git a/module/story/lang/zh-cn.php b/module/story/lang/zh-cn.php
index 09fea212b3..4d1ff43869 100644
--- a/module/story/lang/zh-cn.php
+++ b/module/story/lang/zh-cn.php
@@ -24,6 +24,8 @@
 $lang->story->browse    = "需求列表";
 $lang->story->create    = "新增需求";
 $lang->story->change    = "变更";
+$lang->story->changed   = '需求变更';
+$lang->story->confirm   = '确认';
 $lang->story->review    = '评审';
 $lang->story->edit      = "编辑需求";
 $lang->story->close     = '关闭';
diff --git a/module/task/control.php b/module/task/control.php
index e137e01246..7c6890c1e4 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -180,6 +180,15 @@ class task extends control
         $this->display();
     }
 
+    /* 确认需求变动。*/
+    public function confirmStoryChange($taskID)
+    {
+        $task = $this->task->getById($taskID);
+        $this->dao->update(TABLE_TASK)->set('storyVersion')->eq($task->latestStoryVersion)->where('id')->eq($taskID)->exec();
+        $this->loadModel('action')->create('task', $taskID, 'confirmed', '', $task->latestStoryVersion);
+        die(js::reload('parent'));
+    }
+
     /* 删除一个任务。*/
     public function delete($projectID, $taskID, $confirm = 'no')
     {
diff --git a/module/task/model.php b/module/task/model.php
index 691c0d18ed..dc2f8535aa 100644
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -99,7 +99,7 @@ class taskModel extends model
     /* 通过id获取一个任务信息。*/
     public function getById($taskID)
     {
-        $task = $this->dao->select('t1.*, t2.id AS storyID, t2.title AS storyTitle, t3.realname AS ownerRealName')
+        $task = $this->dao->select('t1.*, t2.id AS storyID, t2.title AS storyTitle, t2.version AS latestStoryVersion, t2.status AS storyStatus, t3.realname AS ownerRealName')
             ->from(TABLE_TASK)->alias('t1')
             ->leftJoin(TABLE_STORY)->alias('t2')
             ->on('t1.story = t2.id')
@@ -109,14 +109,14 @@ class taskModel extends model
             ->fetch();
         if(!$task) return false;
         $task->files = $this->loadModel('file')->getByObject('task', $taskID);
-        return $this->computeDelay($task);
+        return $this->processTask($task);
     }
     
     /* 获得某一个项目的任务列表。*/
     public function getProjectTasks($projectID, $status = 'all', $orderBy = 'status_asc, id_desc', $pager = null)
     {
         $orderBy = str_replace('status', 'statusCustom', $orderBy);
-        $tasks = $this->dao->select('t1.*, t2.id AS storyID, t2.title AS storyTitle, t3.realname AS ownerRealName')
+        $tasks = $this->dao->select('t1.*, t2.id AS storyID, t2.title AS storyTitle, t2.version AS latestStoryVersion, t2.status AS storyStatus, t3.realname AS ownerRealName')
             ->from(TABLE_TASK)->alias('t1')
             ->leftJoin(TABLE_STORY)->alias('t2')
             ->on('t1.story = t2.id')
@@ -127,7 +127,7 @@ class taskModel extends model
             ->orderBy($orderBy)
             ->page($pager)
             ->fetchAll();
-        if($tasks) return $this->computeDelays($tasks);
+        if($tasks) return $this->processTasks($tasks);
         return false;
     }
 
@@ -150,7 +150,7 @@ class taskModel extends model
     /* 获得用户的任务列表。*/
     public function getUserTasks($account, $status = 'all')
     {
-        $tasks = $this->dao->select('t1.*, t2.id as projectID, t2.name as projectName, t3.id as storyID, t3.title as storyTitle')
+        $tasks = $this->dao->select('t1.*, t2.id as projectID, t2.name as projectName, t3.id as storyID, t3.title as storyTitle, t3.status AS storyStatus, t3.version AS latestStoryVersion')
             ->from(TABLE_TASK)->alias('t1')
             ->leftjoin(TABLE_PROJECT)->alias('t2')
             ->on('t1.project = t2.id')
@@ -159,7 +159,7 @@ class taskModel extends model
             ->where('t1.owner')->eq($account)
             ->onCaseOf($status != 'all')->andWhere('t1.status')->in($status)->endCase()
             ->fetchAll();
-        if($tasks) return $this->computeDelays($tasks);
+        if($tasks) return $this->processTasks($tasks);
         return array();
     }
 
@@ -204,23 +204,30 @@ class taskModel extends model
         return $taskCounts;
     }
 
-    /* 计算延期的天数。*/
-    private function computeDelays($tasks)
+    /* 计算一组任务的相关状态。*/
+    private function processTasks($tasks)
     {
         $today = helper::today();
         foreach($tasks as $task)
         {
+            /* 计算是否延期。*/
             if($task->deadline != '0000-00-00')
             {
                 $delay = helper::diffDate($today, $task->deadline);
                 if($delay > 0) $task->delay = $delay;
             }
+            /* 判断需求是否变更。*/
+            $task->needConfirm = false;
+            if($task->storyStatus == 'active' and $task->latestStoryVersion > $task->storyVersion)
+            {
+                $task->needConfirm = true;
+            }
         }
         return $tasks;
     }
 
-    /* 计算延期的天数。*/
-    private function computeDelay($task)
+    /* 计算一个任务的相关状态。*/
+    private function processTask($task)
     {
         $today = helper::today();
         if($task->deadline != '0000-00-00')
@@ -228,7 +235,13 @@ class taskModel extends model
             $delay = helper::diffDate($today, $task->deadline);
             if($delay > 0) $task->delay = $delay;
         }
+
+        /* 判断需求是否变更。*/
+        $task->needConfirm = false;
+        if($task->storyStatus == 'active' and $task->latestStoryVersion > $task->storyVersion)
+        {
+            $task->needConfirm = true;
+        }
         return $task;
     }
-
 }
diff --git a/module/task/view/view.html.php b/module/task/view/view.html.php
index 51271afe7e..94616d246b 100644
--- a/module/task/view/view.html.php
+++ b/module/task/view/view.html.php
@@ -77,7 +77,17 @@
         </tr>  
         <tr>
           <th class='rowhead'><?php echo $lang->task->story;?></th>
-          <td><?php if($task->storyTitle and !common::printLink('story', 'view', "storyID=$task->story", $task->storyTitle)) echo $task->storyTitle;?>
+          <td>
+            <?php 
+            if($task->storyTitle and !common::printLink('story', 'view', "storyID=$task->story", $task->storyTitle)) echo $task->storyTitle;
+            if($task->needConfirm)
+            {
+                echo "(<span class='warning'>{$lang->story->changed}</span> ";
+                echo html::a($this->createLink('task', 'confirmStoryChange', "taskID=$task->id"), $lang->story->confirm, 'hiddenwin');
+                echo ")";
+            }
+            ?>
+          </td>
         </tr>  
         <tr>
           <th class='rowhead'><?php echo $lang->task->owner;?></th>