Yes, Macromedia has just released a update for Macromedia Flash MX 2004 and Flash MX 2004 Professional, but they have also released much more than that. From the Macromedia Flash MX 2004 Updater FAQ:
- Fixes for the most important bugs identified in the Flash MX 2004 release. Read the details in the release notes.
- Improved and extended guidance both in the in-product Help documentation and through the Flash Developer Center.
- Many product extras such as updated components to work with Flash MX 2004 and Flash Player 7, including Flash MX components, Remoting components, Flash Communication Server components, and DevNet Resource Kit (DRK) components.
For a more thorough list of what Macromedia is making available today, see New Resources Available for Flash MX 2004 Developers.