NLP course version and associated Fastai version

Hi,
I want to study NLP.
Should I do the 2019 NLP course or should I do the notebooks present in fastbook in 2020?
If I have to do the 2019 NLP course, what version of fastai should i install?

This may be a bit late but the notebooks present in fastbook in 2020 do not dive a lot into NLP as such. The NLP course would definitely give you a more in-depth overview.

I think version 1.0.61 should work for the NLP course.