ClamAV was awarded as best security tool for 2004 by LinuxJournal. Quoting from http://www.linuxjournal.com/article.php?sid=7564 : ”...With this year’s outbreak of e-mail worms for on-Linux platforms, ClamAV has been getting quite a workout, and Linux admins on mailing lists report that database update times are keeping up with or beating the proprietary alternatives. and, yes, commercial support now is available.” (0 comments)

Our logs show that there is still a small percentage of ClamAV 0.60 installations updating their database. ClamAV 0.60 was released on July 29th, 2003 and it was the last release to use the old database format. Starting from version 0.65, released on November 12nd, ClamAV uses a new database format, which is compressed and digitally signed.
We have been distributing the database in both formats till now, but we plan to drop support for ClamAV 0.60 on September 1st.
We encourage all users to upgrade to the latest release available.
People running an old version of ClamAV are missing many viruses and may experience stability problems. (0 comments)

This version includes a new, memory efficient three-way scanning engine, a PE file analyzer, and is able to decompress executables packed with UPX, Petite, or FSG. Support for CAB and CHM archives, PowerPoint macros, and HTML normalisation was added. New features also include an
improved email detection mechanism and support for detection of broken executable files and popular encrypted log files generated by Mydoom.M. (0 comments)