苹果今天随着Mac OS X 10.7.2同时发布了Safari版本5.1.1的更新版，该版本带来了较大的性能提升，特别是处理JS上性能改进高达13%，同时还修正了稳定性、可用性、兼容性和安全性，详细更新列表如下：

Improve JavaScript performance up to 13% over Safari 5.1*

Address issues that could cause hangs and excessive memory usage

Improve stability when using Find, dragging tabs, and managing extensions

Improve stability for netflix.com and other websites that use the Silverlight plug-in

Add a Show Downloads item to the View menu

Improve the consistency of the pinch to zoom gesture

Address issues in full screen that affected search suggestions, URL updating, window sizing, and the title bar

Address an issue that could prevent East Asian character input into webpages with Flash content

Address an issue that could cause Safari to open links in windows instead of tabs

Improve PDF handling

Address an issue that could affect cookie and data deletion

Address an issue that could cause History items to appear incorrectly

Correct the text in application download alerts

Improve compatibility with webpages with Flash video embedded from vimeo.com and other websites

Improve printing from Safari

Address an issue that could prevent the Google Safe Browsing Service from updating

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