Parking Boss is designed for and tested in modern web browsers, which include:
Microsoft Edge: newest version
Google Chrome: newest version
Mozilla Firefox: newest version
Apple Safari (Mac & iOS): newest two versions
On January 1, 2020, Internet Explorer (IE) will stop working with Parking Boss (we haven't been supporting it since mid-2019). The newest version (IE 11) was released in 2013 and lacks support for much of what makes modern apps possible, so to make Parking Boss better, we need to leave it behind.