Client 18.7 for automatic upgrade should be released yesterday, but I don’t see nothing.
Pro customers are now on 18.8 version, Business customers are still stuck on 18.6. 
You can download it manually, if needed.
The release of agent 18.7 is planned for tomorrow.
Release note: http://download.ccrmm.avg.com/PDF/ReleaseNotes/AV/Avast_Business_Antivirus_18.7.pdf
The automatic update has began from the consoles!