I did the upgrade (only 29 euros) but it’s not available yet for iPad and Zynthian. I don’t like to use Pianoteq with my PC so i couldn’t test the new version.
Now, that is very promising, and I’ll certainly update soon to check this out.
I know that there are quite a few Pianoteq enthusiasts over here, while I never made a secret that, for how dearly I wanted to like it, it never completely met my expectations.
I really hope that this time it will have the body and warmth it has partly lacked so far in the mid-to-high range, at least imho.
There seems to be a new board resonance algorithm in place, which promises to do marvels.
Let’s see! 
Modartt have changed the compression of the linux package and webconf doesn’t recognise it. We will need to change webconf to accept tar.xy.
Pianoteq 9 may now be installed in zynthian Vangelis. @jofemodo please check it is okay then I suggest merging this fix to Oram Staging.
FYI, I contacted Modartt and they wrote that if you buy Pianoteq 9 you can also download previous versions.