What was the last version of DR that did not require CUDA?

I haven't used DR in several months. I opened it up today, saw there was an update, and went for it. Unfortunately, my machine doesn't have CUDA (?) and DR won't run.
Does anyone know the last free version of DR that did not require that?
Thanks for your time!
Does anyone know the last free version of DR that did not require that?
Thanks for your time!