[melling]

What business are you in? If you're going to support IE6 until 2019, which probably runs Javascript 200 times slower than IE10, your software is going to be very limited.

Once your competitions builds a better mousetrap, sends in their sales team then explains that all your customers need to do is install Chrome, it might get a little ugly.

[davidjgraph]

We do a diagramming library. Try http://www.draw.io in IE 6 and 10, I suspect you won't notice the difference.

Fully supporting IE 6 doesn't constrain you at all with the modern browsers, we take full advantage of the recent stuff. We basically have 2 codebases wrapped up behind a single API.

[brazzy]

> explains that all your customers need to do is install Chrome, it might get a little ugly.

No, since these are his customers exactly because they don't want to install Chrome.

[baconner]

That's assuming you didn't already tell them about the limitations of the environment they're choosing and explain stuff like ie compatibility modes that can let them move forward but still use all their cruddy old ie6 only enterprise apps, etc. My experience with this is you want them, cut features out if on those old browser versions and periodically remind them that they're holding themselves back. The scenario where they force vendor a to use ie6 and allow vendor b to use chrome IMO doesn't exist if you discuss this stuff up front.

[mgkimsal]

they might have multiple versions, with modern faster versions and a scaled back IE6/XP version.

[davidjgraph]

It's a myth that IE 6 is devoid of functionality, we have no loss of functionality. The big problem is that it does everything differently and nothing is documented :).