Safari 5.03 is available via Software Update on your Mac, or Apple Software Update on your PC. Apple lists the following new and changed items:
This update contains improvements to usability, compatibility, stability, accessibility and security, including the following:
More accurate Top Hit results in the Address Field
More accurate results in Top Sites
Fixes an issue that could cause content delivered with the Flash 10.1 plug-in to overlap webpage content
More reliable pop-up blocking
Improved stability when typing into search and text input fields
