I took a couple of years off web dev to pursue photography. I'm surprised to come back and find that XML is all but abandoned.
Virtually no support for XSLT v2.
PHP support is still really lame.
Microsft ignored XSLT2
You basically have to convert to Java and use Saxon.
I see no logical reason for this. The paradigm for XML as a general abstraction layer is still useful in today's context - in ANY context.
Oh well. My web dev cohorts disagree (I assume).