diff --git a/module/common/lang/zh-tw.php b/module/common/lang/zh-tw.php
index 0c47c69eff..46fa151b28 100644
--- a/module/common/lang/zh-tw.php
+++ b/module/common/lang/zh-tw.php
@@ -210,13 +210,14 @@ $lang->project->list = '項目列表';
 
 $lang->execution->list = "{$lang->executionCommon}列表";
 
-$lang->doc->recent   = '最近文檔';
-$lang->doc->my       = '我的文檔';
-$lang->doc->favorite = '我的收藏';
-$lang->doc->product  = '產品庫';
-$lang->doc->project  = '項目庫';
-$lang->doc->custom   = '自定義庫';
-$lang->doc->wiki     = 'WIKI';
+$lang->doc->recent    = '最近文檔';
+$lang->doc->my        = '我的文檔';
+$lang->doc->favorite  = '我的收藏';
+$lang->doc->product   = '產品庫';
+$lang->doc->project   = '項目庫';
+$lang->doc->execution = "{$lang->executionCommon}庫";
+$lang->doc->custom    = '自定義庫';
+$lang->doc->wiki      = 'WIKI';
 
 $lang->product->list = $lang->productCommon . '列表';
 
diff --git a/module/doc/control.php b/module/doc/control.php
index b7459f15ff..0504f67cbb 100644
--- a/module/doc/control.php
+++ b/module/doc/control.php
@@ -623,6 +623,7 @@ class doc extends control
         {
             $doc        = $this->doc->getByID($docID);
             $objectType = $this->dao->select('type')->from(TABLE_DOCLIB)->where('id')->eq($doc->lib)->fetch('type');
+            if($this->config->systemMode == 'classic' and $objectType == 'project') $objectType = 'execution'; 
             $this->doc->delete(TABLE_DOC, $docID);
 
             /* if ajax request, send result. */
diff --git a/module/doc/lang/en.php b/module/doc/lang/en.php
index b7b06240c9..c365e9ade4 100644
--- a/module/doc/lang/en.php
+++ b/module/doc/lang/en.php
@@ -105,12 +105,13 @@ $lang->doc->fixedMenu      = 'Fix to Menu';
 $lang->doc->removeMenu     = 'Remove from Menu';
 $lang->doc->search         = 'Search';
 
+global $config;
 /* Query condition list. */
 $lang->doc->allProduct    = 'All' . $lang->productCommon . 's';
 $lang->doc->allExecutions = 'All' . $lang->executionCommon . 's';
 
 $lang->doc->libTypeList['product']   = $lang->productCommon . ' Library';
-$lang->doc->libTypeList['project']   = 'Project Library';
+if($config->systemMode == 'new') $lang->doc->libTypeList['project'] = 'Project Library';
 $lang->doc->libTypeList['execution'] = $lang->executionCommon . ' Library';
 $lang->doc->libTypeList['custom']    = 'Custom Library';
 
diff --git a/module/doc/lang/zh-cn.php b/module/doc/lang/zh-cn.php
index fcc67947e3..adf72ec989 100644
--- a/module/doc/lang/zh-cn.php
+++ b/module/doc/lang/zh-cn.php
@@ -105,12 +105,13 @@ $lang->doc->fixedMenu      = '固定到菜单栏';
 $lang->doc->removeMenu     = '从菜单栏移除';
 $lang->doc->search         = '搜索';
 
+global $config;
 /* 查询条件列表 */
 $lang->doc->allProduct    = '所有' . $lang->productCommon;
 $lang->doc->allExecutions = '所有' . $lang->executionCommon;
 
 $lang->doc->libTypeList['product']   = $lang->productCommon . '文档库';
-$lang->doc->libTypeList['project']   = '项目文档库';
+if($config->systemMode == 'new') $lang->doc->libTypeList['project'] = '项目文档库';
 $lang->doc->libTypeList['execution'] = $lang->executionCommon . '文档库';
 $lang->doc->libTypeList['custom']    = '自定义文档库';
 
diff --git a/module/doc/lang/zh-tw.php b/module/doc/lang/zh-tw.php
index 49de4726a4..0379584037 100644
--- a/module/doc/lang/zh-tw.php
+++ b/module/doc/lang/zh-tw.php
@@ -16,7 +16,7 @@ $lang->doc->product      = '所屬' . $lang->productCommon;
 $lang->doc->project      = '所屬項目';
 $lang->doc->execution    = '所屬' . $lang->executionCommon;
 $lang->doc->lib          = '所屬文檔庫';
-$lang->doc->module       = '所屬分類';
+$lang->doc->module       = '所屬目錄';
 $lang->doc->title        = '文檔標題';
 $lang->doc->digest       = '文檔摘要';
 $lang->doc->comment      = '文檔備註';
@@ -83,7 +83,8 @@ $lang->doc->editBook         = '編輯手冊';
 $lang->doc->editType         = '編輯目錄';
 $lang->doc->deleteType       = '刪除目錄';
 $lang->doc->addType          = '增加目錄';
-$lang->doc->childType        = '子分類';
+$lang->doc->childType        = '子目錄';
+$lang->doc->catalogName      = '目錄名稱';
 $lang->doc->collect          = '收藏';
 $lang->doc->cancelCollection = '取消收藏';
 $lang->doc->deleteFile       = '刪除附件';
@@ -187,13 +188,15 @@ $lang->doc->noOpenedDoc          = '您還沒有創建任何文檔。';
 $lang->doc->noCollectedDoc       = '您還沒有收藏任何文檔。';
 $lang->doc->errorEmptyLib        = '文檔庫暫無數據。';
 
-$lang->doc->noticeAcl['lib']['product']['default'] = '有所選產品訪問權限的用戶可以訪問。';
-$lang->doc->noticeAcl['lib']['product']['custom']  = '有所選產品訪問權限或白名單裡的用戶可以訪問。';
-$lang->doc->noticeAcl['lib']['project']['default'] = "有所選項目訪問權限的用戶可以訪問。";
-$lang->doc->noticeAcl['lib']['project']['custom']  = "有所選項目訪問權限或白名單裡的用戶可以訪問。";
-$lang->doc->noticeAcl['lib']['custom']['open']     = '所有人都可以訪問。';
-$lang->doc->noticeAcl['lib']['custom']['custom']   = '白名單的用戶可以訪問。';
-$lang->doc->noticeAcl['lib']['custom']['private']  = '只有創建者自己可以訪問。';
+$lang->doc->noticeAcl['lib']['product']['default']   = '有所選產品訪問權限的用戶可以訪問。';
+$lang->doc->noticeAcl['lib']['product']['custom']    = '有所選產品訪問權限或白名單裡的用戶可以訪問。';
+$lang->doc->noticeAcl['lib']['project']['default']   = "有所選項目訪問權限的用戶可以訪問。";
+$lang->doc->noticeAcl['lib']['project']['custom']    = "有所選項目訪問權限或白名單裡的用戶可以訪問。";
+$lang->doc->noticeAcl['lib']['execution']['default'] = "有所選{$lang->executionCommon}訪問權限的用戶可以訪問。";
+$lang->doc->noticeAcl['lib']['execution']['custom']  = "有所選{$lang->executionCommon}訪問權限或白名單裡的用戶可以訪問。";
+$lang->doc->noticeAcl['lib']['custom']['open']       = '所有人都可以訪問。';
+$lang->doc->noticeAcl['lib']['custom']['custom']     = '白名單的用戶可以訪問。';
+$lang->doc->noticeAcl['lib']['custom']['private']    = '只有創建者自己可以訪問。';
 
 $lang->doc->noticeAcl['doc']['open']    = '有文檔所屬文檔庫訪問權限的，都可以訪問。';
 $lang->doc->noticeAcl['doc']['custom']  = '白名單的用戶可以訪問。';
diff --git a/module/doc/view/editlib.html.php b/module/doc/view/editlib.html.php
index 95c72e7bee..b6bb6b2e87 100644
--- a/module/doc/view/editlib.html.php
+++ b/module/doc/view/editlib.html.php
@@ -43,7 +43,7 @@
       </tr>
       <tr>
         <th><?php echo $lang->doclib->control;?></th>
-        <?php if($lib->type == 'product' or $lib->type == 'execution' or $config->systemMode == 'classic'):?>
+        <?php if($lib->type == 'product' or $lib->type == 'execution' or ($config->systemMode == 'classic' and $lib->type != 'custom' )):?>
         <td>
           <?php echo html::radio('acl', $lang->doclib->aclListA, $lib->acl, "onchange='toggleAcl(this.value, \"lib\")'")?>
           <span class='text-info' id='noticeAcl'><?php echo $lang->doc->noticeAcl['lib'][$lib->type][$lib->acl];?></span>
diff --git a/module/execution/lang/zh-tw.php b/module/execution/lang/zh-tw.php
index 318abc7722..a41f945e45 100644
--- a/module/execution/lang/zh-tw.php
+++ b/module/execution/lang/zh-tw.php
@@ -11,15 +11,15 @@
  */
 /* 欄位列表。*/
 $lang->execution->allExecutions  = '所有' . $lang->executionCommon;
-$lang->execution->allExecutionAB = '所有執行';
+$lang->execution->allExecutionAB = "所有{$lang->execution->common}";
 $lang->execution->id             = $lang->executionCommon . '編號';
 $lang->execution->type           = $lang->executionCommon . '類型';
 $lang->execution->name           = $lang->executionCommon . '名稱';
 $lang->execution->code           = $lang->executionCommon . '代號';
 $lang->execution->project        = '所屬項目';
-$lang->execution->execName       = '執行名稱';
-$lang->execution->execCode       = '執行代號';
-$lang->execution->execType       = '執行類型';
+$lang->execution->execName       = "{$lang->execution->common}名稱";
+$lang->execution->execCode       = "{$lang->execution->common}代號";
+$lang->execution->execType       = "{$lang->execution->common}類型";
 $lang->execution->stage          = '階段';
 $lang->execution->pri            = '優先順序';
 $lang->execution->openedBy       = '由誰創建';
@@ -39,14 +39,14 @@ $lang->execution->workHourUnit   = 'h';
 $lang->execution->totalHours     = '可用工時';
 $lang->execution->totalDays      = '可用工日';
 $lang->execution->status         = $lang->executionCommon . '狀態';
-$lang->execution->execStatus     = '執行狀態';
+$lang->execution->execStatus     = "{$lang->execution->common}狀態";
 $lang->execution->subStatus      = '子狀態';
 $lang->execution->desc           = $lang->executionCommon . '描述';
-$lang->execution->execDesc       = '執行描述';
+$lang->execution->execDesc       = "{$lang->execution->common}描述";
 $lang->execution->owner          = '負責人';
 $lang->execution->PO             = $lang->productCommon . '負責人';
 $lang->execution->PM             = $lang->executionCommon . '負責人';
-$lang->execution->execPM         = '執行負責人';
+$lang->execution->execPM         = "{$lang->execution->common}負責人";
 $lang->execution->QD             = '測試負責人';
 $lang->execution->RD             = '發佈負責人';
 $lang->execution->release        = '發佈';
@@ -149,7 +149,7 @@ $lang->execution->burnByList['estimate']   = "按計劃工時查看";
 $lang->execution->burnByList['storyPoint'] = '按故事點查看';
 
 /* 方法列表。*/
-$lang->execution->index             = "執行主頁";
+$lang->execution->index             = "{$lang->execution->common}主頁";
 $lang->execution->task              = '任務列表';
 $lang->execution->groupTask         = '分組瀏覽任務';
 $lang->execution->story             = "{$lang->SRCommon}列表";
@@ -174,29 +174,29 @@ $lang->execution->linkPlan          = "關聯計劃";
 $lang->execution->unlinkStoryTasks  = "未關聯{$lang->SRCommon}任務";
 $lang->execution->linkedProducts    = '已關聯';
 $lang->execution->unlinkedProducts  = '未關聯';
-$lang->execution->view              = "執行概況";
-$lang->execution->startAction       = "開始執行";
-$lang->execution->activateAction    = "激活執行";
-$lang->execution->delayAction       = "延期執行";
-$lang->execution->suspendAction     = "掛起執行";
-$lang->execution->closeAction       = "關閉執行";
-$lang->execution->testtaskAction    = "執行測試單";
-$lang->execution->teamAction        = "執行團隊";
-$lang->execution->kanbanAction      = "執行看板";
+$lang->execution->view              = "{$lang->execution->common}概況";
+$lang->execution->startAction       = "開始{$lang->execution->common}";
+$lang->execution->activateAction    = "激活{$lang->execution->common}";
+$lang->execution->delayAction       = "延期{$lang->execution->common}";
+$lang->execution->suspendAction     = "掛起{$lang->execution->common}";
+$lang->execution->closeAction       = "關閉{$lang->execution->common}";
+$lang->execution->testtaskAction    = "{$lang->execution->common}測試單";
+$lang->execution->teamAction        = "{$lang->execution->common}團隊";
+$lang->execution->kanbanAction      = "{$lang->execution->common}看板";
 $lang->execution->printKanbanAction = "打印看板";
-$lang->execution->treeAction        = "執行樹狀圖";
-$lang->execution->exportAction      = "導出執行";
+$lang->execution->treeAction        = "{$lang->execution->common}樹狀圖";
+$lang->execution->exportAction      = "導出{$lang->execution->common}";
 $lang->execution->computeBurnAction = "計算燃盡圖";
 $lang->execution->create            = "添加{$lang->executionCommon}";
-$lang->execution->createExec        = "添加執行";
-$lang->execution->copyExec          = "複製執行";
+$lang->execution->createExec        = "添加{$lang->execution->common}";
+$lang->execution->copyExec          = "複製{$lang->execution->common}";
 $lang->execution->copy              = "複製{$lang->executionCommon}";
 $lang->execution->delete            = "刪除{$lang->executionCommon}";
-$lang->execution->deleteAB          = "刪除執行";
-$lang->execution->browse            = "瀏覽執行";
+$lang->execution->deleteAB          = "刪除{$lang->execution->common}";
+$lang->execution->browse            = "瀏覽{$lang->execution->common}";
 $lang->execution->list              = "{$lang->executionCommon}列表";
 $lang->execution->edit              = "編輯{$lang->executionCommon}";
-$lang->execution->editAction        = "編輯執行";
+$lang->execution->editAction        = "編輯{$lang->execution->common}";
 $lang->execution->batchEdit         = "編輯";
 $lang->execution->batchEditAction   = "批量編輯";
 $lang->execution->manageMembers     = '團隊管理';
@@ -259,7 +259,7 @@ $lang->execution->aboveAllExecution = "以上所有{$lang->executionCommon}";
 
 /* 頁面提示。*/
 $lang->execution->linkStoryByPlanTips = "此操作會將所選計划下面的{$lang->SRCommon}全部關聯到此{$lang->executionCommon}中";
-$lang->execution->selectExecution     = "請選擇執行";
+$lang->execution->selectExecution     = "請選擇{$lang->execution->common}";
 $lang->execution->beginAndEnd         = '起止時間';
 $lang->execution->lblStats            = '工時統計';
 $lang->execution->stats               = '可用工時 <strong>%s</strong> 工時，總共預計 <strong>%s</strong> 工時，已經消耗 <strong>%s</strong> 工時，預計剩餘 <strong>%s</strong> 工時';
@@ -294,7 +294,7 @@ $lang->execution->noExecution         = "暫時沒有{$lang->executionCommon}。
 $lang->execution->noMembers           = '暫時沒有團隊成員。';
 $lang->execution->workloadTotal       = "工作量占比累計不應當超過100, 當前產品下的工作量之和為%s";
 // $lang->execution->linkProjectStoryTip = "(關聯{$lang->SRCommon}來源於項目下所關聯的{$lang->SRCommon})";
-$lang->execution->linkAllStoryTip     = "(項目下還未關聯{$lang->SRCommon}，可直接關聯該執行所關聯產品的{$lang->SRCommon})";
+$lang->execution->linkAllStoryTip     = "(項目下還未關聯{$lang->SRCommon}，可直接關聯該{$lang->execution->common}所關聯產品的{$lang->SRCommon})";
 
 /* 交互提示。*/
 $lang->execution->confirmDelete             = "您確定刪除{$lang->executionCommon}[%s]嗎？";
diff --git a/module/misc/lang/zh-tw.php b/module/misc/lang/zh-tw.php
index d65daea3ef..6e33ecaf02 100644
--- a/module/misc/lang/zh-tw.php
+++ b/module/misc/lang/zh-tw.php
@@ -84,6 +84,8 @@ $lang->misc->feature = new stdclass();
 $lang->misc->feature->lastest  = '最新版本';
 $lang->misc->feature->detailed = '詳情';
 
+$lang->misc->releaseDate['15.0.rc2']    = '2021-04-09';
+$lang->misc->releaseDate['15.0.rc1']    = '2021-04-05';
 $lang->misc->releaseDate['12.5.3']      = '2021-01-06';
 $lang->misc->releaseDate['12.5.2']      = '2020-12-18';
 $lang->misc->releaseDate['12.5.1']      = '2020-11-30';
@@ -138,6 +140,8 @@ $lang->misc->releaseDate['7.2.stable']  = '2015-05-22';
 $lang->misc->releaseDate['7.1.stable']  = '2015-03-07';
 $lang->misc->releaseDate['6.3.stable']  = '2014-11-07';
 
+$lang->misc->feature->all['15.0.rc2'][]    = array('title' => '修復Bug，優化界面交互', 'desc' => '');
+$lang->misc->feature->all['15.0.rc1'][]    = array('title' => '升級到15版本，重構導航、文檔庫，增加項目集管理', 'desc' => '');
 $lang->misc->feature->all['12.5.3'][]      = array('title' => '優化年度總結', 'desc' => '');
 $lang->misc->feature->all['12.5.2'][]      = array('title' => '修復Bug', 'desc' => '');
 $lang->misc->feature->all['12.5.1'][]      = array('title' => '修復漏洞。', 'desc' => '');
diff --git a/module/my/lang/zh-tw.php b/module/my/lang/zh-tw.php
index e92e3482dc..9f42ee7ad2 100644
--- a/module/my/lang/zh-tw.php
+++ b/module/my/lang/zh-tw.php
@@ -52,7 +52,7 @@ $lang->my->myExecutions = "我參與的階段/衝刺/迭代";
 $lang->my->name         = '名稱';
 $lang->my->code         = '代號';
 $lang->my->projects     = '所屬項目';
-$lang->my->executions   = '所屬執行';
+$lang->my->executions   = "所屬{$lang->executionCommon}";
 
 $lang->my->executionMenu = new stdclass();
 $lang->my->executionMenu->undone = '未結束';
diff --git a/module/product/lang/zh-tw.php b/module/product/lang/zh-tw.php
index d05a7fd007..190828ff08 100644
--- a/module/product/lang/zh-tw.php
+++ b/module/product/lang/zh-tw.php
@@ -149,7 +149,7 @@ if($config->systemMode == 'new')
 }
 else
 {
-    $lang->product->aclList['private'] = "私有({$lang->productCommon}相關負責人可訪問)";
+    $lang->product->aclList['private'] = "私有({$lang->productCommon}相關負責人、相關聯{$lang->executionCommon}的團隊成員可訪問)";
 }
 $lang->product->aclList['open']    = "公開(有{$lang->productCommon}視圖權限，即可訪問)";
 //$lang->product->aclList['custom']  = '自定義白名單(團隊成員和白名單的成員可以訪問)';
diff --git a/module/task/lang/zh-tw.php b/module/task/lang/zh-tw.php
index a0107f224a..5f24670fb2 100644
--- a/module/task/lang/zh-tw.php
+++ b/module/task/lang/zh-tw.php
@@ -55,7 +55,7 @@ $lang->task->allModule           = '所有模組';
 
 $lang->task->common           = '任務';
 $lang->task->id               = '編號';
-$lang->task->project          = '所屬執行';
+$lang->task->project          = '所屬項目';
 $lang->task->execution        = '所屬' . $lang->execution->common;
 $lang->task->module           = '所屬模組';
 $lang->task->moduleAB         = '模組';
diff --git a/tools/check.php b/tools/check.php
index 9d832e4a6a..0d531c667e 100755
--- a/tools/check.php
+++ b/tools/check.php
@@ -12,6 +12,8 @@ $config->productLink   = '-';
 $config->projectLink   = '-';
 $config->executionLink = '-';
 $config->systemMode    = 'new';
+$config->URAndSR       = true;
+$config->systemScore   = true;
 
 /* set module root path and included the resource of group module. */
 $moduleRoot = '../module/';