AVAST! 5 has been released (though only English seems to be currently available).
There is no automatic update but it does seem to install over version 4 without problem. It extends existing free license during the upgrade.
The free version still needs to be registered but the registration process is now built into the software rather than having to go back to the website and wait for a license code.
See http://www.avast.com/en-gb/free-antivirus-download for more details.
Installed it and it looks quite nice - big UI change though.
The Pro version has also been released and now includes a firewall (not sure version 4 did but I never tried it so maybe it did).
There is no automatic update but it does seem to install over version 4 without problem. It extends existing free license during the upgrade.
The free version still needs to be registered but the registration process is now built into the software rather than having to go back to the website and wait for a license code.
Quote
See http://www.avast.com/en-gb/free-antivirus-download for more details.
Installed it and it looks quite nice - big UI change though.
The Pro version has also been released and now includes a firewall (not sure version 4 did but I never tried it so maybe it did).






I thought from the sound of a blog-post that it will automatically update itself from 4->5 actually, but we'll wait and see when the Norwegian version is ready.
If you have set 4.8 to ask for permission for update program then you can refuse. Don't know how long they will support old version.

. I've sent messages to the Avast and Outpost forums to see whether I can get any insight into what the problem is and what if anything I can do about it. 