Well, well, I am writing a coup almost. Wordpress version 2.6.1was released a few minutes ago. The word from veterans is that if WP 2.6 is really good for you, then there is no necessity for you to upgrade to the latest version 2.6.1
I have 4 blogs on WP and all are being run on WP 2.3 only. I am comfortable with it and I am contended.
WordPress 2.6.1 offers several improvements for international users, such as styling for admin for right-to-left languages and fixing mysterious get text bug. In addition, there is also a fix for a performance bug in the admin panel where those users with several plugins might experience slowness on page loads.