It's a tiny detail, but it's a great safety improvement: you can now change a custom administrator username when installing Joomla!—that is, before you first enter the backend interface.
The changes in the Joomla! 1.6 backend interface are more than skin deep. The backend interface has been reorganized. Some menu items have been reorganized to make them more logical and easier to use. New shortcuts to the backend home page or to other frequently used screens are among the great little timesavers.
The Save & New and Save as Copy buttons help you create new content very efficiently, allowing you to skip a few clicks in the process.
Joomla! 1.6 features a new safety system to prevent you accidentally deleting articles and menu items: deleting in two steps, using the Trash and Empty Trash buttons.
Finally, new backend templates and template options allow you to customize the looks of the backend—to enhance the legibility and usability, or just to make it look more beautiful.
In the next...