The Beta 10 builds for Tableau Desktop, Server, and Reader are available on the Beta Website.
We will be making a new version of the beta software available each week. If you have participated in beta programs with us in the past, this is an accelerated schedule. We want to be sure to get the latest version of the software out to everyone throughout the entire beta program as things change rapidly. If you can't download and install a new version every week, use the beta version you have and continue to report issues to us. However, we'd appreciate you updating the software as often as you can.