I'm fine either way, just curious if this has changed drastically from what I had looked at previously.
"The entire Crypto 101 project is publicly developed on GitHub under the crypto101 organization, including this book: https://github.com/crypto101/book "
[...]
"The copy of this book that you are reading right now is based on the git commit with hash 3f89ec3 , also known as 0.4.0-22-g3f89ec3"
Then, looking at the commits, yes the book changed a lot since 2014: https://github.com/crypto101/book/commits/master
I should stop calling it a pre-release. There's no useful "done" marker. It includes most of the material I wanted to talk about, and has for a while. You should update the PDF though; as the other commenter mentioned, it does get updated :)
Well, maybe when there are no more "TODOs" ;)