Use version 9 license with version 6

Hi,

I bought UR22mkII and I got Cubase AI v9 license. But my Imac is an old one (os x 10.7.5). I can only install Cubase AI v6. Can I convert this license in anyway? Or do I have to buy v6 as well?

Thanks
Malaka

Anyway you can not buy Any v6 anymore. But if it is the same as with elements artist and pro you can run a v6 on a v9 licence.