Hello I'm new to TeamViewer 
 want to connect my Win 10 OS with v15 with older Pc with Win 7 OS  v14.2.56680
 it says the obvious Version is too old to  connect but if I download  Teamviewer with win 7 I only  get v14.2.56680 and cannot update It says it is the newest version,
Tried download version 14 with  win 10 but this gives me a newer version v.14.748671