Hi *,
here I'm again.
An avast Home/Pro update is coming soon (1st half of the next week - before part of the team leaves for the US) and now it's my pleasure to announce the availability of a pre-release version of this update. This build is a very good approximation of what the final update will look like (we don't plan making any changes yet - except for respective bug fixes).
How to install it (for starters - most people already know this trick anyway

: simply download and run the following program:
http://files.avast.com/files/beta/aswbeta.exe . That's about all it takes.
The fixes in this release include
- detection of ZA and partial disable of WebShield (
sorry guys)
- detection/removal of certain conflicting LSP's
- improved scanning of archives (including handling of corrupted archives)
- lots of minor bugfixes
and other.
Please make sure to post your respective comments about this release either directly to this thread or (even better) by starting a new one.
Edit: updated to v4.6.650Thanks

Vlk