A new version of the Flash Player 9 Update beta is now available on Adobe Labs. The centerpiece of this new release is added support for H.264 video and AAC audio, but many other performance and miscellaneous enhancements have also been included. See the release notes for more information.
Downloads for Macintosh, Windows, and Linux are available in addition to an online demo of two different high-definition video codecs.

Great update, but what about debug version of the player?
@Oleg – Good question…
I was waiting for H.264 video support and here we come.