Safari 6.0.3 is included as part of OS X 10.8.3 Mountain Lion.
Apple Safari is the most popular Mac Web browser. Experience the web, Apple style, with Safari: the fastest, easiest-to-use Web browser in the world. With its simple, elegant interface, Safari gets out of your way and lets you enjoy the Web up to 4 times faster than Internet Explorer 7 and 2 times faster than Firefox.
- Contains updated security content. Download included with OS X 10.8.3 Mountain Lion.
- Improves scrolling on facebook.com
- Improves scrolling while zoomed in on a webpage
- Improves performance on webpages with plug-in content
- A fix for an issue that could cause the inaccurate appearance of an alert that bookmarks can't be changed
- A fix for an issue that could cause duplicate bookmarks to appear on an iOS device after editing bookmarks with Safari in OS X
- A fix for an issue that permitted users to access unfiltered search results when searching from google.com when Parental Controls are enabled
- A fix for an issue that could prevent Safari from restoring the last position on a webpage a user navigated back to
OS X 10.8 or later
(Via MacUpdate - Mac OS X.)