as for a few hours install the version 9 … to know if everything works … I have in these moments vps 131101-01 … is it correct? stream updates works and have folder 131102-00 stream updates

Yes.

I am using Avast Free so I can answer only on the first part of your post.
I have the same VPS number and same stream updates folder.

thanks :wink:

Don’t for get that avast 9 is on a different VPS update stream from avast 8, so there are times when the current version will differ.

Whilst there is a 131102-0 version of the VPS it only contains fixes, http://www.avast.com/virus-update-history .