Adobe has today announced the Flash Player 10 release candidate as the first testing update since early January when their previous Flash Player 10 beta had added many new features
such as 3D effects, advanced text layout, an enhanced drawing API, and visual performance improvements. The first beta though for Adobe Flash Player 10 Linux was announced back in May
In the Linux version of the Adobe Flash Player 10 RC is improved camera support with V4L1/V4L2, improved software full-screen support, faster and a more stable window-less mode, SSL handled through NSS, and stability fixes. Missing from this release candidate is any native 64-bit Linux support, so don't expect that until at least Adobe Flash Player 11.
The Linux release announcement can be read on the Adobe Linux blog