- full support for Snow Leopard (Mac OS X 10.6)
- integrated security book fully updated for Snow Leopard and the iPhone
- new "News" menu
- new Twitter stream at http://twitter.com/isfym
- significantly improved geo-location (map) support
- new and updated service definitions
- bug fixes
- Mac OS X 10.3.9 or later DoorStop X Firewall, Norton Personal Firewall, or any firewall that uses Mac OS X's built-in firewall capability.