The first let me say thanks for your really great product. I really like it.
I'm your client, and soon I should prolongate subscription period. However, the compatibility plugins with new 4.5 IPBoard is bad for me. When I bought subscription I build solution on 4.4 version and of the payment plugin in your marketplace. Now, I have active subscription and I still cannot migrate on 4.5 for several monthes, because developers in your marketplace don't update their payment plugins for Nexus and 4.5. And of course I can't influence them in any way. Why 4.5 has not been made of some mechanism for backward compatibility for these plugins? For example, at least this backward compatibility way can ask administrator about special permission from admin side for working, if you take care about forum security.
At this moment, I have active subscription, but I' continue sitting on 4.4 version in waiting of blessing external developers, who should update their plugins.