New GUI installer ees_osx_cs.dmg does not work for me with Sierra. I tried to use terminal but with the same problem (sudo installer -pkg Installer.pkg -target /
installer: Package name is ESET Endpoint Security
installer: Upgrading at base path /
installer: The upgrade failed (Instalátor narazil na chybu, která způsobila selhání instalace. Požádejte výrobce softwaru o asistenci.))