radi,
A bit of clarification is needed before answering your question on the next version of Avast.
Avast updates its' virus database whenever necessary but is usually updated every week and sometimes more depending on the amount of new viri discovered.
The Avast PROGRAM is updated whenever its' functionality dictates. In otherwords, if the program is suffering from a bug that is vital for correction, the update is almost immediate. If "little" fixes are needed, then they all may be incorporated in a "new release". It is just makes more sense to do it that way and is far more efficient in maintaining the stability of the program.
A new build is due out this week to correct a problem with boot scanning. Not sure exactly when this week, but it should be soon.
Hope this helps you.
Techie101