Release Notes: A bug in filename shortening that broke older Perl versions has been fixed. MIME mangling has been changed away from TEXT/PLAIN, as some mailers perform text-related operations on that MIME type, corrupting the attachments.
Release Notes: This release added default poisoning of the application/x-msdownload MIME type in response to a new worm. Full MIME-type poisoning support will be available shortly. This release was accelerated for security reasons.
Release Notes: The unrar executable check was fixed to not test for unrar if RAR scanning is already explicitly disabled by $DISABLE_RAR_SCAN. Recipient notification now works when sanitizing on a relay (e.g. in front of an Exchange server).
Release Notes: RAR archive scanning and the ability to mangle or poison WMF image files were added.
Release Notes: This release fixes bugs in scanning of multi-layered MIME attachments, and an infinite loop on certain MIME boundary strings.
Release Notes: Scanning of JPEG attachments to detect Microsoft BO attempts was added. A minor bugfix was made in .ZIP and document scanning.