Can I update my addons?

I know its up for me but its beta.
Whats the most apropriate thing to do, port my addons now or wait untill first official release?

Devs love to say that the api is not finished and might change. such changes would completelly break addons apart again or just a few lines could be changed to make them work again?

Yes, you can. The python api in final state. Maybe will be some little changes like name conventions :upside_down_face:

See here: