Beautiful, I'm happy for MS to make IE9 comply with all this new stantards.
Now, I leave you. I have to spend the rest of the evening trying to make a site to work and render correctly in IE6, IE7 & IE8 (at the same time). :(
What about the older versions of firefox, opera, etc...
Wouldn't the users that use an outdated version of Internet Explorer also use an outdated version of an alternative browser, if they had used this browser in the beginning.
I don't know about others but I find much less old version of Firefox, safari and chrome than IE 6 users access my sites. It seems (this is only a personal observation) that users of these alternative browsers are more likely to update frequently.
I think you're right. Another big factor is also the automatic updates of Chrome and Firefox. IE updates have to go through the windows updates and people tend to ignore those as much as possible.
Another factor about IE6 is that it's only used in organizations and companies where people can't install their own programs, so they don't bother calling up IT (sometimes outsourced IT which is expensive) just to install a browser.
The only reason to use an outdated version of, say, Firefox is when your OS isn't supported by the latest version.
Not many people run IRIX these days.
As for IE, it's not trivial to have more than one version of it installed under a single Windows image. That and internal applications that rely on a specific quirky version of IE won't help with keeping your browser up-to-date.