How often you revisit your notebook and update the code?

In another post I asked the question about how to version control your Jupyter notebook and one thing is coming out of it is that the notebook book is just for exploring the data after that you convert it to .py file and put it in to production.
In my case I need to revisit the notebook time to time for including more data and update the model again. I am curious to know how frequently you revisit your notebook …

book code control data datascience file jupyter notebook production question update version control