I don't track which cards work, because in general they all do. Sometimes there's a slight delay between when a new GPU architecture gets released and drivers that enable it (e.g. Maxwell didn't until Yosemite was released, but the first Yosemite web driver released made GM107 work fine). I suspect nobody knows if Quadro M6000 works because nobody on these forums has access to one of those cards. However, based on the huge number of people using high-end Maxwell cards like the GTX 980, GTX 980 Ti and TITAN X, it's a safe bet that this new card will work as well.