4、去掉”新闻动态“　　
　source/admincp/admincp_index.php第404行找到　function show_news()函数，直接返回 return;
3、去掉”DiscuzX 开发团队“
　source/admincp/admincp_index.php第457行找到　show_forever_thanks()　函数，直接返回　return;

2、去掉版本检测 　　source/admincp/admincp_index.php第50－60行
$newversion = (CHARSET == 'utf-8') ? dunserialize($_G['setting']['cloudaddons_newversion']) : json_decode($_G['setting']['cloudaddons_newversion'], true);
if(empty($newversion['newversion']) || !is_array($newversion['newversion']) || abs($_G['timestamp'] - $newversion['updatetime']) > 86400 || (isset($_GET['checknewversion']) && $_G['formhash'] == $_GET['formhash'])) {
　$newversion = json_decode(cloudaddons_open('&mod=app&ac=upgrade'), true);
　if(!empty($newversion['newversion'])) {
　　　$newversion['updatetime'] = $_G['timestamp'];
　　　C::t('common_setting')->update_setting('cloudaddons_newversion', ((CHARSET == 'utf-8') ? $newversion : json_encode($newversion)));
　　　updatecache('setting');
　} else {
　　$newversion = array();
　}
}
改为： $newversion = array();

1、修改后台首页“管理团队留言”中30天
　source/admincp/admincp_index.php第267行函数　function show_note()方法：
　$note['expiration'] = ceil(($note['expiration'] - $note['dateline']) / 86400);
或者直接让此函数 return;