Graebert released an updated version for ARES CE. This new version comes with various new tools and fixes. A complete changelog is available
here.
As usually .deb, .rpm and tar.gz versions are
available for testing with or without registration (some features like saving and printing are not available in the unregistered version).
Unfortunately there is no native 64bit Linux version yet.
Also a special offer is valid until January 5th 2013 so you can buy ARES CE at the discounted price of 495€.