A reader reminded us of the impending April 15 deadline for the support of ClamAV version 0.94 and earlier. ClamAV will be releasing signatures greater than 980 bytes on May 15.  ClamAV version 0.94 and earlier will not be able to deal with these.  To prevent issues on April 15 there will be a signature released that effectively disables version older than 1 year (version 0.94 and earlier). The application will not start.  

Most of you will no doubt already be using a later version, but the product is used in many a gateway and is used as part of a number of commercial appliances.  If you are not certain what version you are using, you may wish to do a quick check.  

Some more information is here http://www.clamav.net/lang/en/2009/10/05/eol-clamav-094/

Mark H