He specifically mentioned compatibility charts, which implies he isn't just looking at supporting the latest and greatest!
In my personal projects I don't care about legacy browsers (to users that far out of date I say "please go be a pain in the side for someone else"), but professionally I'll have to support at least as far back as IE8 for a while yet and I suspect a great many people are in the same position.
In my personal projects I don't care about legacy browsers (to users that far out of date I say "please go be a pain in the side for someone else"), but professionally I'll have to support at least as far back as IE8 for a while yet and I suspect a great many people are in the same position.