v2 (proposed) is not backward compatible with v1.1
Problems on how to serve it:
- Ian Hixie on the issue: If you use XHTML, you should deliver it with the application/xhtml+xml MIME type. If you do not do so, you should use HTML v4 instead of XHTML. The alternative, using XHTML but delivering it as text/html, causes numerous problems that are outlined below. Unfortunately, MsIE v6 does not support application/xhtml+xml (in fact, it does not support XHTML at all). oy I think I'll be sticking with HTML for the foreseeable future...
If you're using it on your website, even if it validates, you are probably using it incorrectly.
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