Altough Steinberg posted an annoucement about the new OSX Yosemite, stating that this OS will have issues with SB software while installing, and SB released a tool to help in installation, there’s no indication about Wavelab having a problem installing in that OS. In the PDF about the software that this tool will help, there’s nothing about Wavelab. Does this means that Wavelab installer is compatible with Yosemite?
At this stage, there is no official commitment “WaveLab supports Yosemite”. But some people tried 8.5.10 with success. That’s all.