Version history Avast! Home Edition

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Changes from v4.8.1351 -> v4.8.1356

• solved a memory leak in the GZIP unpacker
• solved vulnerabilities in AavmKer4.sys, aswMon2.sys and ashWsFtr.dll (special thanks to Giuseppe Bonfa, Alex and Maxim A. Kulakov)

Changes from v4.8.1335.90415 -> v4.8.1351

• improvements in some unpackers (WinExec, Installers, Droppers)
• various fixes and improvements in the scanning engine
• Standard Shield: stability improvements in the kernel-mode drivers
• preparations for smoother migration to v5 (when it's released)

Changes from v4.8.1296 -> v4.8.1335

• improvements 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

Changes from v4.8.1290 -> v4.8.1296

• minor improvements in some unpackers
• improvements in the false positive submission system
• speed optimization in kernel-mode components
• XML scan reports now generated in UTF-8 format (allow for non-Latin characters)

Changes from v4.8.1282 -> v4.8.1290

• improvements in the malware submission system
• minor improvements in some unpackers
• improvements in the rootkit scanner
• Network Shield: solved a problem occurring on systems with missing TCP stack

Changes from v4.8.1229 -> v4.8.1282

• improvements in some unpackers (Zip, 7-Zip, WinExec, Installer)
• fixed incompatibility with ext2fsd driver
• fixed a problem in The Bat! plugin (causing orphaned thebat.exe processes after the program was closed)
• added new unpacker "droppers" (by default turned on in all tasks including the real time scanner)
• fixed a problem with actions on infected files with special names
• Network Shield: added a component for blocking of malware URLs
• added the possibility of sending of statistical information about detected viruses
• added a new option of reporting of false positives
• improved the submission from the Virus Chest (now based on HTTP protocol)
• added a component for gathering of new samples from exploited pages
• implemented a limit of the maximum size of the selfdef.log file
• speed optimizations in the updater
• speed optimizations in the scanning engine
• solved a minor conflict with McAfee SiteAdvisor
• added support for the Windows Security Center in Vista SP1 (new API)
• minor fixes in the Web Shield
• removed support for ICQ a MSN Messenger alerts

Changes from v4.8.1201 -> v4.8.1229

• Web Shield: solved compatibility problems with Opera browser
• Web Shield: solved problems with some D-Link router devices

Changes from v4.8.1195 -> v4.8.1201

• Solved incompatibility with System Safety Monitor
• Improved compatibility of the self defense module with XP SP3 (and its installation)
• Minor enhancements in the Web Shield (detection of streaming content)
• Minor fixes in the updater

Changes from v4.7.986 -> v4.7.1001

• Professional Edition: fixed installation of the ScriptBlocker module which could have previously caused various problems (e.g. in Internet Explorer)
• program installation now completes successfully even if Spyware Doctor is installed (the "OnGuard" module of Spyware Doctor contains a bug that was previously preventing the avast installation from working correctly)
• program installation now better handles the situation when repairing previous (corrupted) installs
• mail scanner: fix for marking of new emails as "read" (the problem was taking place in Thunderbird 2.0 in conjunction with some IMAP servers)
• fix for scanning of areas with East Asian names (Windows NT/2000/XP/Vista)
• added Armadillo unpacker

Changes from v4.7.892 -> v4.7.981

• Fixed extra-long duration of the boot-time scan under Windows Vista
• WebShield: improved compatibility with Windows Vista
• WebShield: better support for HTTP method CONNECT in upstream proxy scenarios
• Fixed a minor memory leak in aswrdr.sys
• Auto-updates now use much less CPU resources (should not interfere with other CPU-intensive programs running on the computer, e.g. games)
• Added a new unpacker: "installers"; useful especially for detection of malware droppers
• Outlook/Exchange provider: improved compatibility with Outlook 2007
• Boot-time scanner: fix for the case when there's the /NOGUIBOOT option in boot.ini (or BCD on Windows Vista)
• Fixed a problem in Standard Shield under Windows Vista related to saving of Word 2007 documents on FAT partitions
• Email alerts now use correct formatting even for non-Latin characters
• Fixed a rare problem in Standard Shield related to handling of disk volumes mounted to NTFS directories
• Further enhancements in executable unpackers
• Fixed a bug in ZOO unpacker (special thanks to Jean-Sébastien Guay-Leroux)
• Task scheduler: it's now possible to specify which days of week the task should run
• Command-line scanner (ashCmd.exe) now supports a couple of more command-line options, mostly related to handling of infected files
• Mail scanner: improved deleting of entire emails (virus embedded in email body)
• Fixed opening of the sounds settings dialog under certain operating systems
• Avast! screensaver now available even under Windows Vista 64-bit
• Better detection of corrupted/modified VPS file
• WebShield: other minor fixes
• Added Macedonian, Croatian and Portuguese (not Brazilian) language packs

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