Apple has released the first public Beta of Safari 4, a new version of its web browser that packs a powerful new JavaScript engine and support for the latest web standards.
Dubbed "Nitro," the engine in Safari 4 is said to run JavaScript 4.2 times faster than Safari 3. Other new features include Top Sites, for a visual preview of frequently visited pages; Full History Search, to search through titles, web addresses and the complete text of recently viewed pages; Cover Flow, to easily flip through web history or bookmarks; and Tabs on Top, to make tabbed browsing easier and more intuitive.
Safari 4 also includes Accessible Rich Interactive Applications, full page zoom support, CSS effects and CSS Canvas support, HTML 5 offline support, offline database support, and smart search recommendations. It sports several features for developers, too such as a new Web Inspector, a page elements view, a JavaScript debugger, a page resources view, and more. For more information about the exciting new features in Safari 4, please visit this page (and 150 features of Safari 4).
If you are a Windows user, Safari 4 will look very home as it features Windows native look and feel. Safari 4 can be downloaded from http://www.apple.com/safari/ page. Safari 4 Beta is available for both Windows and Mac.

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