The Dark Ascension patch 2.4 for Decked Builder Mac edition has been released by Apple. 

We have also released a quick patch to disable autosaving on the Mac as well, as it is proving to be a big problem for a small minority of users. It’s a pity that Apple seems to have broken something in Lion for some users in the autosave area which we are unable to reproduce on our machines — I really enjoyed the feature.