Adobe's Flash Player 10.1 development is slowly but surely making progress, having just reached a release candidate phase which brings with it a significant amount of fixes and improvements to the code, but nothing extraordinary over what previous Beta builds could do.

Stability and performance are the two main areas of improvement along with better graphics card support that deals with some annoying video playback issues on some configurations.

Adobe has a PDF freely available for download which runs you over the full release notes of this RC build so you can get a clearer picture on what exactly these changes/fixes are.