The book is up to date with 1.0.12. This is also the version you should be using right now since 2.0 is a bit too experimental for daily use.
The only thing missing in the book is embedded subpatches (also known as the patch/patcher object). Earlier versions used external files for this. I'm planning to update this in the next version of the book, but I won't commit to a release date yet. Future updates to the book are free for everyone who bought it.