# mprovements in some unpackers (WinExec, Installer, ZIP)
# improved memory scan, especially under 64-bit operating systems
# fixed a possible deadlock condition when copying system files from some removable media
# fixed a possible problem with access rights when deleting infected files on reboot
# Web Shield: minor stability fixes
# Internet Mail: smtp.gmail.com and smtp.live.com now ignored on port 25 (as these are SSL only)
# improved healing of some infected files
# various fixes and improvements in the scanning engine
# Web Shield now scans pages compressed with the "deflate" algorithm
# performance optimization of Standard Shield under Windows Vista
# improvements in the automatic sample submission system
# improvements in the URL blocker

Link :
Home Edition
Professional Edition

Already posted here by stasio :
http://forum.lowyat.net/topic/495594

oh..i didn see it..should edit the topic title..