(It has been renumbered from 2.1 to 3.0 since that was published).
New features are listed in Appendix J.
Saxon-EE 9.3 implements some of the streaming features (though not
in exactly the way described in the spec). It also implements
try/catch, xsl:evaluate, and xsl:iterate.
You need to be aware that this is a first working draft, and that
everything in the spec is subject to change; Saxon's policy is to
implement new features in Working Drafts as early as possible, but
to change them if the spec subsequently changes, without regard to