Version 1.0.0 Stable

Tested on all major releases of Concrete5, like:
Concrete5 5.7.5.13
Concrete5 8.0.3
Concrete5 8.4.5
Concrete5 8.5.2

Version 1.2.2 Stable

Both visitor counter completely rewritten with tracking pixel, without the need to track the user IP address. So the package is GDPR compliant as well, and it won't store unused information about the visitors. Tested on 

Concrete5 5.7.5.13
Concrete5 8.0.3
Concrete5 8.4.5
Concrete5 8.5.2