Not long ago, a security release of WordPress has been pushed to the user. There are a new one today at http://wordpress.org/development/2009/08/2-8-4-security-release/.
WordPress 2.8.3 is released. They said this is a security release for 2.8.1. So, I think everyone should download that.
Please download at
Moreover, I read an article at WordPress.org. 2.9 will come very soon.
I have used the fantastico at cpanel to create my joomla instance. I found I can't type any chinese characters, after saving, they became like "???". The problem is the collation in mySQL database is set to latin by default. My solution is create a sql dump and ten replaced to collation on each table and field to utf-8.