Presumably IE11 will hold out forever, since it's not under meaningful development any more.
What's missing from any recent version of iOS Safari, though? Anything from 10 upwards supports pretty much all of ES6 with very minor exceptions, AFAIK. Even features from more recent versions of ES tend to be supported quite well quite quickly in the era of self-updating "evergreen" browsers.
What's missing from any recent version of iOS Safari, though? Anything from 10 upwards supports pretty much all of ES6 with very minor exceptions, AFAIK. Even features from more recent versions of ES tend to be supported quite well quite quickly in the era of self-updating "evergreen" browsers.