Whilst there is nothing on the web site yet (it will be updated in due course), it does give the latest version number 4.7.1074 on the avast.com home page. There is a new beta release of avast for the Windows Home Server and there were some updates made to avast home/pro to support this, which at the time weren't released to the regular release of avast 4 home/pro.
I can only guess after those trials, etc. they have been incorporated into the regular release of avast 4 home/pro along with any outstanding fixes for avast 4 home/pro. We will just have to wait for the web site to catch up rather than hod the release of 4.7.1074.