If this is old news....oh well
What caught my attention was:
The new Safari also supports offline storage for Web applications in SQL databases, support for SVG and CSS images, and support for SVG advanced text. The Windows version improves on back and forward controls, supports signed Java applets, shows the Caps Lock icon in password fields,
and adds support for international domain names. In addition, a contextual menu in the Windows version permits opening a link in a window or tab and there is improved pop-up blocking for plug-ins.
I'm gonna download it today or tomorrow and see what has changed.
http://news.yahoo.com/s/nf/20080318/tc_nf/58863