Regarding the reported Yosemite beta/DPS plugin compatibility problem. We have a workaround. Please use this at your own risk, for testing purposes only. I am unsure what system security implications this workaround may present to your system.
In terminal, paste:
sudo nvram boot-args=”kext-dev-mode=1″
DPS should work. This method disables Apple’s new app (kernal extension) signing requirement. It is unclear whether this requirement will make it to the final release of Yosemite.