A new update has been posted to this thread.
Also, the first drop for Octane for CARRARA plugin 4.0 has been posted here.
OctaneRender for Carrara 3.08.03.42[Stable and Test]
Thanks alot Simon! 

http://www.thomas-schwenke.me
Houdini 20.5 || Win11 || i7 + RTX3080
Houdini 20.5 || Win11 || i7 + RTX3080