My apologies if this has already been mentioned and I didn't notice. I have recently started using oXygen's documentation feature to generate HTML documentation for my XSLT stylesheets. I just went to find out something about a stylesheet, and looked at the documentation in my browser rather than opening the stylesheet. To my horror, I could not figure out if it was written in XSLT 1 or XSLT 2. It would be nice if somewhere near the top of the documentation there was an indication of the language the stylesheet is written in (currently only XSLT 1.0, 2.0, I guess, but there will be other possibilities in the future). Perhaps another box in the "main file" collapsible area would do the trick. Could also mention reliance on extension functions there, maybe? I'm currently using oXygen 11.1 (build 2009122213 on Mac OS X, but I doubt any of this matters).