Identifying 2.0 stylesheets

• Namespace is still http://www.w3.org/1999/XSL/Transform

• version attribute of xsl:stylesheet has value 2.0

<xsl:stylesheet version="2.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <!-- Top level elements -->

</xsl:stylesheet>