As a reader from the book I got it when the MEAP was released. I am quite happy with the purchase, however it would have been nice to have some chapters mentioning spec and quickcheck.
Other than that, there is no part of the book I felt was rushed or missing. It has pretty much the standard knowledge most people should know about Elixir.
- releases with distillery. We now have distillery 2.X so the book could use some updates, but I must say that chapter alone was the most useful in my work.
Less liked part:
- distribution with elixir. Mainly because nowadays the odds of you doing a distributed cluster manually are so slim I wonder if that space in the book should have been used so extensively to describe a feature made deprecated by VMs, docker and micro-services. This is a personal opinion however, if you do distribted systems manually, those chapters will be right up your alley.
Overall I would recommend the book.
Great work and I hope to see more coming from you!