Noticed anything different on this blog? No? Yet, I upgraded WordPress from version 2.5 to version 2.7.1. Since you had no problems viewing this post, we can safely admit the upgrade process was entirely successful.
The upgrade process is very simple since WordPress is developed in PHP. Just copy (and sometimes overwrite) the contents of the wordpress folder to your webserver and presto, you got the new version. I must admit I was a little afraid something would go wrong… And what to do in this case? Prior to the upgrade, I did a backup of WordPress database using WordPress Database Backup plugin.
Now everything is fine. And Mango theme is upgraded too.