If you have followed the progress of the release of ATK 12.8 via the website (primarily
http://quantumwise.com/publications/news-archive/188) you will have seen that we are slowly but steadily approaching the final release. There have been some issues with the license systems that had to be fixed, but things are now looking very good and we are confident a final release can be made very soon.
Meanwhile there is a so-called release candidate, version number 12.8.r1, available for download from the address above. It has all the features of 12.8 and no serious known bugs at all, plus also no expiry date, so it can safely be used until the final release appears, which we hope will be in 1-2 weeks, tops.