In order to transition away from $.browser to $.support, people are going to want/need something to help identify IE6.

After a bit of research, I found one property that seems to work: elem.style.maxHeight. IE6 returns undefined.

I'm adding a patch to support.js - please let me know if you think this would work. I tested in IE6 & 7, Firefox 2 & 3, Opera 9.5 & 9.6 and Safari 3.

Usage:

if (!$.support.maxHeight) {
	// do ie6 stuff
}