Updates New Avast beta version 20.6.2417


Level 29
Content Creator
Oct 25, 2014
Hi all

New Avast version 20.6.2417

Hi everyone,

I`m glad to announce that new beta version is ready - 20.6.2417 (build 20.6.5464). And this time I would like to also ask you for help (detailed description follows under release notes).

What's new
Simplification of privacy settings - merging 2 data sharing properties (Share app-usage data with Avast to help us with new product development / ...with 3rd-party analytics tools to improve this app) while respecting the previous user choice - so if any one of the former properties was ticked off, the new merged setting will be ticked off as well.
EDITED: We have enabled additional logging in beta builds to gain additional records about some possible performance problems. You can notice that there is a lot of *.taskperflog files in log folder. These files can take hundreds of MB. Log files will be automatically deleted when older then 14 days.

What was fixed
Improved UI startup performance
Fixed issue when internal drive was offered to be scanned as external HDD
Fixed crash in webshield
Fixed UI crash
Fixed crash of AV service during OS restart
Fixed issue in UI when Remote Access Shield or Real Site are disabled

Known issues
When passive mode is enabled AV service and UI does not start

Download links
Avast free https://bits.avcdn.net/productfamily_ANTIVIRUS/insttype_FREE/platform_WIN/installertype_ONLINE/build_BETA
Avast premium https://bits.avcdn.net/productfamily_ANTIVIRUS/insttype_APR/platform_WIN/installertype_ONLINE/build_BETA

Enjoy this beta!
We are looking forward to your feedback.

Special request
We have one request for our forum users. We need to obtain dumps of AV service with enabled full page heap.
It would helps us a lot if some of you could go through these steps in order to help us to analyze crashes we see currently reported on our backends in the latest beta version (20.6).

1) You need Application Verifier from Windows SDK installed. You can grab latest SDK (aplicable to Win7 and later) here: https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk/
2) To enable verification, you need to disable Self-Defense (Menu -> Settings -> Troubleshooting -> untick Enable Self-Defense) if AV is already installed.
3) Enable Heaps checking for AV service.
avast: appverif.exe -enable Heaps -for AvastSvc.exe -with Heaps.full=True
avg: appverif.exe -enable Heaps -for AvgSvc.exe -with Heaps.full=True

Note that it is recommended to run 64bit system, because Heap checking is quite demanding on memory consumption and 32bit address space is just too small for this technique. Running this on system with 8GB RAM or more is also recommended.
If you still plan to try this on 32bit OS, you could at least enable verification without Full Heap checking via Heaps.full=False, but the added value for analysis is lowered.

4) Install AV if not already installed, else re-enable Self-Defense.
5) Observe for memory dumps in
avast: %PROGRAMDATA%\AVAST Software\Avast\log
avg: %PROGRAMDATA%\AVG\Antivirus\log

Application Verifier settings will persist through reboots. To disable verification, run appverif.exe -disable * -for *
The memory dumps will be usually automatically submitted to our servers. However, there are limits on submit size and upload frequency, so if dumps are very large (200MB+ usually) you could zip the files and upload them to our ftp (here is how: https://support.avast.com/article/160/, please post the name of the uploaded archive).

Thank you very much!


With best Regards