Today marks a major milestone in the development of Construct! In the Construct 3 r95 beta release you can now try out the all-new Construct 3 runtime. This is...
Do I understand this correct that the new C3-Runtime-Plugin-API is not compatible with the old based on C2 C3-Runtime-Plugin-API?
So all C3 third party plugins have to be adapted again for the new runtime?
Yes, third-party plugins will need to be adapted again for the new runtime. I'm afraid there's not much way around that.