No, it's not. The change log for avast! Free Antivirus for Mac is:
2012-08-14: Build 37431
Installer:
Fixed effect of accidental master-unlink state
Fixed progmac version mixing upon two progmac updates without intermediate vpsmac update
GUI:
Minor bugfixes
2012-07-24: Build 37264
Motto of this update is “compatibility with Mac OS X 10.8 (Mountain Lion)”
Code-signed avast!.app by avast Developer ID certificate so GateKeeper (new feature of 10.8 ) allows using it under the default system settings.
Preferences:
Fix of saving .plist files (was broken on 10.8 )
GUI:
Fix crash when requesting repair/move/delete of file which already does not exist on the disk.
2012-07-11: Build 37202
Daemon:
WebRep integration.
GUI:
Sizable main window.
Partial rework of scan report (speed up).
“Collapse/Expand all” context menu items on Scan Report
Sample submit sending (false positives etc.).
Assorted crash fixes.
File System Shield:
Expanded file path pattern white list (Chrome speed-up).
Proxy:
Mail Shield adds some mail headers to mark infected mails.
Registration Wizard:
Added copy/paste support.
2012-05-29: Build 37028 (branch 7_0)
File system shield:
Fixed a bug in R2, which causes the activity stat is not sent to GUI.
Proxy:
Fixed some issues related to possible loss of server certificates.
Start-up:
Fixed a bug when wrong CommunityIQ data were sent to server during Mac boot.
2012-05-24: Build 36987
GUI:
Added manual sample submit dialog.
Connection/disconnection to/from the portal can be done without changes to the registration.
Fixed non-functional registration on Mac OS X 10.5
Fixed showing the welcome screen after install.
Fixed some issues of program update.
Fixed nonfunctional uninstall when registration app is running.
Fixed double-scan of some partitions on full system scan.
Other minor bug fixes.
Sample submitter:
New helper utility sending the samples to virus lab.
File system shield:
Fix some issue related to signal handling.
Proxy:
Fixed issues when /etc/hosts contains non-trivial records.
Fixed showing pop-up on bad certificate.
IMAP related bug fixes.
Helper:
Reworked pop-up configuration.
Fixed occasional crash on Mac OS X 10.5.
Setup:
Fixed update race between releasing new version to public repository and update check from clients.
Install:
Minor bug fixes.
2012-04-27: Build 36770
Contains newer VPS which does not cause the big memory leaks.
2012-04-26: Build 36758
First (non-beta) release
Main features:
engine v7
filesystem shield
proxy (web + mail shield)
main GUI app
helper (message popper)
preference pane
program and VPS update capability
Regards,
Jan