The mod has actually been released many times, new stuff constantly being added, but version 1.6 is the most recent public version. It does NOT include perhaps half of the items seen in images, videos, etc., however hopefully it will still be entertaining as well as exciting.
If you would like to give it a spin, look for the file in the downloads section!
And of course, feel free to leave a comment wherever, to tell us what you think and leave your awesome suggestions!
But stay tuned for version 1.7—many things will come in that version. If you would like to see some things that might be in it, then check out the page on the Carnivores Saga!