In reply to Short&Savage:
Pretty sure the topos were free on pdf, just had to email the Orange House for a password through the website, we then had plenty to go at. I'm not sure about any very recent new developments I'm afraid, but the guys from there would be in the know. Hopefully someone else has been out there more recently and would be able to point you in the right direction.
I have just come back from Croatia though and there is an up to date DWS guide on sale for there for around $10 online. Plenty of routes in some amazing locations and the Adriatic sea is pretty warm and friendly, it would be my recommendation! The DWS film Depth Charge helps to showcase some of the possibilities
https://www.youtube.com/watch?v=AdTtq-rrIsM.