So now that I've played a few games with the new Codex, I still think it is on par with the 5th ed book, and has the same feel to it. I didn't like the 5th ed book that much, especially not in 6th edition.
So I went to my happy place, and I made a rough draft of a Fandex for myself.
The relics don't exist and are just place holders, the biomorphs rules are left in comments. Anything that isn't listed probably stayed the same. Feel free to give it a read and let me know what you think.