OK, sorry, I am now confused. I asked on 25-02-10 and 25-02-11 if my MF with RME PCI Express HDSPe card ought to work with Mac 10.7.5. It is currently running with 10.6.8, but it was not recognized when I upgraded to 10.7.5.
I understand from RME responses that it should work with 10.7.5. Mathias has said on 2015-02-11 that a different PCIe slot and a warm boot will probably "be able to flash it to the latest version" and it will then work in the Mac Pro (which it does already, as stated, but I assume he means with 10.7.5 specifically, as per question).
Mathias also said on 2015-02-11, when I asked about going back to running 10.6.8 again at a later date, that "The new firmware is downward compatible and also works with older drivers."
I am simply asking if it therefore also upward compatible and will work with all newer drivers.
My bottom line is simply whether it is safe and OK for me to upgrade to later OS versions without messing things up and causing myself problems, or if I should stick with 10.6.8, if I wish to keep using this MF and card (which I do).
Are you simply saying the the MF and HDSPe card should do so in any case in all circumstances (possibly with help of warm boot etc), and there is no connection to firmware updates etc.
many thanks