From the information here no one can say, which is why when anyone has a BSOD, I try to encourage them to upload any dump files if present.

However, the latest build did resolve some stability issues. But one thing for sure, you won’t get a warm fuzzy feeling without ducking your head under the covers. So I suggest that you at least give it a try or you won’t know how it fits in with your system setup.

See http://forum.avast.com/index.php?topic=84297.0 for very general information on the builds major changes.