Graded Browser Matrix

Grade A	Grade B	Grade C
Chrome (Latest) MacOS (Latest) Windows (Latest) Android (Latest)	Chrome (Latest) MacOS High Sierra+ Windows 8.1+ Android Nougat + 1	Chrome (Latest) MacOS Sierra+ Windows 7+ Android Marshmallow+ 1
Firefox (Latest) MacOS (Latest) Windows (Latest)	Firefox (Latest) MacOS High Sierra+ Windows 8.1+	Firefox (Latest) MacOS Sierra+ Windows 7+
Internet Explorer (Latest) Windows (Latest)	Internet Explorer (15+) 2 Windows 8.1+	Internet Explorer (15+) 2 Windows 7, 8.1, 10+
Safari (Latest) MacOS (Latest) iOS (Latest)	Safari (10.1+) MacOS High Sierra+ iOS 11+ 1	Safari (10.1+) MacOS Sierra+ iOS 10+ 1
Supports latest versions of each browser and operating system.	Supports one level of backwards compatibility for each operating system.	Supports two levels of backwards compatibility for Chrome, Firefox and IE for each operating system

1 Ios & Android

• iOS support based on software version adoption rates: https://developer.apple.com/support/app-store/

• Android support based on software version adoption rates https://developer.android.com/about/dashboards/index.html

2 Internet Explorer

• IE support based on internal and market research.

• Read our case for not supporting IE11 (2019), also note Microsoft no longer supports IE 8-10 (2016).

Unsupported

If a browser is not outlined in the above chart, it is categorized as unsupported.