A scripting tool called Automator to link applications together to form complex automated workflows (written in AppleScript and/or Cocoa).A new mini-applications layer based on HTML, Cascading Style Sheets, and JavaScript called Dashboard, adds ' Widgets', similar to desk accessories, to the OS, and has been compared to Konfabulator, a third party product.Reader for RSS and atom web syndication feeds built into the Safari web browser.iChat AV that supports up to 4 participants in a video conference and 10 participants in an audio conference.The feature is also used to build the concept of Smart folders into the Finder. Spotlight, a powerful full-text and metadata search engine which can search everything from files to iCal calendars, as well as any text within a PDF file.

Apple CEO Steve Jobs previewed Tiger in his keynote speech at the Worldwide Developers Conference on June 28, 2004. Mac OS X 10.4 contains over 200 new features. Mac OS X 10.4.4 (released January 10, 2006), the first Universal binary version to support both PowerPC and Intel processors.

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