真是一点征兆也没有，Safari 3.1 正式版刚刚推出了。新版的 Safari 具备了 Mac OS X 与 Windows 兼容版本，支持多国语言界面支持，讲究的还是浏览的高效性，速度依然流畅。Safari 3.1 能支持最新的富媒体网络标准，最早支持了 HTML5 视频/音频标签以及 CSS 动画，支持 CSS Web Fonts 网络字体。面向全新的交互性 Web 2.0 网站是重头戏，而 WebKit 最近在性能方面的显著提高，已经可以在 Safari 3.1 中体验到了。以下是官方新闻稿：

Apple Releases Safari 3.1

The World's Fastest Browser Now on Mac and Windows

CUPERTINO, Calif., March 18 /PRNewswire-FirstCall/ - Apple(R) today introduced Safari(TM) 3.1, the world's fastest web browser for Mac(R) and Windows PCs. Safari loads web pages 1.9 times faster than IE 7 and 1.7 times faster than Firefox 2. Safari also runs JavaScript up to six times faster than other browsers, and is the first browser to support the latest innovative web standards needed to deliver the next generation of highly interactive Web 2.0 experiences*. Safari 3.1 is available immediately as a free download at http://www.apple.com/safari for both Mac OS(R) X and Windows.

"Safari 3.1 for Mac and Windows is blazingly fast, easy to use and features an elegant user interface," said Philip Schiller, Apple's senior vice president of Worldwide Product Marketing. "And best of all, Safari supports the latest audio, video and animation standards for an industry-leading Web 2.0 experience."
The incredible performance of Safari, combined with its elegant user interface, lets users spend more time surfing the web and less time waiting for pages to load. Safari features an intuitive browsing experience with drag-and-drop bookmarks, easy-to-organize tabs, an integrated Find that shows the number of matches in a page and a built-in RSS reader to quickly scan the latest news and information.

Safari 3.1 is the first browser to support the new video and audio tags in HTML 5 and the first to support CSS Animations. Safari also supports CSS Web Fonts, giving designers limitless choices of fonts to create stunning new web sites.

Pricing &Availability

Safari 3.1 is available immediately as a free download at http://www.apple.com/safari for both Mac OS X and Windows users. Safari software updates are delivered seamlessly through Apple's Software Update application, which automatically checks for updates.

Safari 3.1 for Mac OS X requires Mac OS X Leopard(R) or Mac OS X Tiger(R) version 10.4.11, a minimum of 256MB of memory and is designed to run on any Intel-based Mac or a Mac with a PowerPC G5, G4 or G3 processor and built-in FireWire(R). Safari 3.1 for Windows requires Windows XP or Windows Vista, a minimum of 256MB of memory and a system with at least a 500 MHz Intel Pentium processor.

官方对于 Safari 3.1 升级的详细文档在这里：About the Safari 3.1 Update

下载：apple.com/safari/download