I am in the middle of IPython Cookbook (http://ipython-books.github.io/cookbook/ http://ipython-books.github.io/cookbook/), which I enjoy a lot. I wanted to as

I am in the middle of IPython Cookbook (http://ipython-books.github.io/cookbook/ http://ipython-books.github.io/cookbook/), which I enjoy a lot. I wanted to ask which things gets outdated, but it seems that the author tries keep it up to date (https://github.com/ipython-books/cookbook-code/issues/17 https://github.com/ipython-books/cookbook-code/issues/17).