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The stable version retains all the features previewed in the beta, while fixing numerous bugs.
The browser beats all the competition in the JavaScript testing conducted by Apple. Based on the Webkit engine, like Google Chrome, it gives a big competition to the likes of Firefox 3 and Internet Explorer 8. Apple however didn't use the most recent builds available for the other browsers like Firefox 3.5 beta and Google Chrome 3 alpha, which have a lot of performance improvements.
Major features of Safari 4 include ultra fast browsing, panoramic home screen with previews of favorite sites, and even Cover Flow in history along with a huge memory footprint.
Download Safari 4 for Windows and Mac.