IE8 and below is considered a down-level browser and so will display the down-level stage. We made some significant fixes after FF15 was released (I believe), and there are other changes that are detailed in our blog, htttp://blogs.adobe.com/edge/. When we release a version, we've generally tested against the most recently released browser version of the major browsers out there - Chrome, Firefox, Safari, IE. Given how fast the web moves, it's probably fair to expect that the most recent versions of major browsers are supported.
Hope that helps!
Thanks for your reply elainefinnell.
Ya, I can understand that Adobe is targetting all the modern browsers only. I just want to know the minimum version numbers of browsers like chrome, firefox, opera or whatever, where edge animate will work. Cause I've to give a proper description to my client about the browser support before suggesting him to use edge animate.
We support the latest stable release of modern browsers, plus one version back.