今天打开自己的博客的时候，发现WordPress已经发布2.2版本了，自己看了一下增加widget管理，改善过评论管理，还有就是WordPress 2.2 在 wp-config.php 里增加了两个变量“DB_CHARSET 和 DB_COLLATE”，现在不用修改 wp-db.php 来指定编码也不会乱码，对经常换空间的人来说很实用，其他还没细看，因该些改了很多Bug吧！
我在升级过程中还是使用了我原来的wp-config.php，去掉了DB_CHARSET 和 DB_COLLATE这两个变量！
对了，不要忘了修改你的模版让他支持widget！方法很简单：
在你的sidebar.php里添加

再在你模版的文件functions.php (没有的话请自己创建), 添加：（一般是添加在第一行）
if ( function_exists(’register_sidebar’) )
register_sidebar(array(
‘before_widget’ => ”,
‘after_widget’ => ”,
‘before_title’ => ‘

‘,
‘after_title’ => ‘

‘,
));
?>
看了一下bloggingpro上，英文好的可以看看:

WordPress Widgets allow you to easily rearrange and customize areas of your weblog (usually sidebars) with drag-and-drop simplicity. This functionality was originally available as a plugin Widgets are now included by default in the core code, significantly cleaned up, and enabled for the default themes.
Full Atom support, including updating our Atom feeds to use the 1.0 standard spec and including an implementation of the Atom Publishing API to complement our XML-RPC interface.
A new Blogger importer that is able to handle the latest version of Google’s Blogger product and seamlessly import posts and comments without any user interaction beyond entering your login.
Infinite comment stream, meaning that on your Edit Comments page when you delete or spam a comment using the AJAX links under each comment it will bring in another comment in the background so you always have 20 items on the page. (I know it sounds geeky, but try it!)
We now protect you from activating a plugin or editing a file that will break your blog.
Core plugin and filter speed optimizations should make everything feel a bit more snappy and lighter on your server.
We’ve added a hook for WYSIWYG support in a future version of Safari.