Here are the desktop browser test arrays I currently use.
Original array, created in early September 2013.
Firefox and Chrome updated (except Chrome Linux, which did not update).
Stopped testing in IE7, although a single column 'IE7 and lower' will continue to exist for older data.
Opera updated to 24. Dropped the old Presto-based Opera 12.
Firefox Windows and Mac updated to 33.
Added the IE EdgeHTML engine.
On Windows 10 virtualization as downloaded from Modern IE.
Surface Book with Windows 10 acquired!
Bloody Linux is nattering about a password that I can’t remember, so no Linux tests.