Ive found a way to register myself with whatsapp.

Ive generated a Code using WART (Whatsapp Registration Tool). Then Ive switched into /opt/waxmpplugin/bin/wazapp/Yowsup, removed the whole content, downloaded the newest source from https://github.com/tgalal/yowsup extracted the src/Yowsup files into the cleaned Yowsup folder, registrated using the generated code, and it went successful. Then Ive removed and reinstalled wazapp to get the old Yowsup folder back and I was able to login.

It doesnt start with the updated framework (that's why you need to reinstall) and after reinstalling you don't have a contact list (sync returns no contacts), but you can receive messages and are able to answer. So Ive messaged my friends to write me a message over whatsapp and now I can chat again. Its not a nice method, but its a nice workaround as long as we have to wait for the update.