I am looking at purchasing OpenGarage however I am a stuck on the Security+ 2.0 Adapter requirement.
My CS60EVO system only has the yellow button and not the yellow antenna (black). Chamberlain does mention that the remote for my system is Security+ 2.0.
I agree that it’s unclear whether this needs Security+ 2.0 adapter or not. I would say not, because usually if it was Security+ 2.0 you will see signs of it on the product and user manual. A simple test you can do is to simple find the terminal ports that correspond to wall button wires, and insert a wire to short those two terminal ports (thus simulating pressing the wall button). If that triggers door action, then you do NOT need 2.0 adapter.