Why? Because this morning Windows Avast shows 130811-0 which 11-0 shows Aug 11th and the 0 is the first update of the day.

My iMac still shows 13080500 which means the update was Aug 05 and 00 means the first update of the day, therefore my iMac has not had Virus Updates since Aug 5th. If I go a manual update it says I am up to date. Does this mean no updates since Aug 5th???
VS