Late on Thursday, Apple posted Safari 3.2 for Windows XP, Vista, and Mac OS X Tiger and Leopard. The update addresses several security issues for all the OSes and adds protection against phishing and better identification of online businesses.
Appleis support page for Leopard said:
"This update is recommended for all Safari users and features protection from fraudulent phishing websites and better identification of online businesses. This update also includes the latest security updates. For detailed information on the security content of this update, please visit this site: http://support.apple.com/kb/HT1222"
The download is 39 MB. Safari 3.2 for Leopard requires Security Update 2008-007 and Mac OS X 10.5.5. Safari can be upgraded via Mac OS X System Preferences -> Software Update or as a standalone installer from the the link above.