• Support for H.264 video and HE-AAC audio codecs.
• Multi-core support for vector rendering.
• Full screen mode with hardware scaling.
• Flash Player cache for common platform components, such as the Flex framework.
• Support for Microsoft Active Accessibility (MSAA) in the Windows plug-in.

• Support for H.264 video and HE-AAC audio codecs (new Aug. 21).
• Enhancements to full-screen mode to use hardware scaling for improved video performance and quality on systems running Windows 2000 and newer or Mac OS X 10.2 and newer.
• Faster rendering of vector graphics on multi-core CPUs.
• Higher quality and performance for downscaling large bitmaps (SWF 9 only).
• Support for caching common platform components, such as the Flex framework, to reduce average application sizes. This feature is enabled in the Flex 3 beta available on Adobe Labs.
• Support for full-screen mode on Linux.
• Recursive calling to and from JavaScript via the ExternalInterface API is now permitted (not available in Opera or Netscape).
• Runtime errors can now be thrown from JavaScript to ActionScript via the External Interface API.
• HTTP requests from the Flash Player ActiveX Control in some versions of Internet Explorer did not include the Accept-Language header. The ActiveX Control now always inserts this header.

Adobe Flash Player 9.0.47.0 includes security enhancements described in Security Bulletin APSB07-12 [http://www.adobe.com/go/apsb07-12].