...not if you are relying on .NET or MSXML to process your XSLT 2.0 (or 3.0) transforms.
Many XSLT enthusiasts have been waiting years to show people what you can do in Microsoft Land (.NET, SQL Server, etc) with XSLT 2.0. MSXML still only supports XSLT 1.0. I went to MSDN's Frequently Asked Questions about XSLT page today for an update...
Last Updated: 4/27/2013 (Posted)