Safari 5.1 developer preview

Along with other exciting updates Apple has released the developer preview of Safari 5.1, too.
Almost all new features are targeted at developers, but there are also under-the-hood changes indirectly improving the user experience:

  • More stability and responsiveness due to the new process and plugin architectures, which separate rendering and plugin execution from the application process
  • New CSS3 features (vertical text, text emphasis, auto-hyphenation)
  • New extension features (events, popovers, menus)
  • WebGL can be enabled in the Develop menu
  • The sending of the Do Not Track HTTP header can be enabled in the Develop menu

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