I'm using Oxygen XML Editor standalone on Windows 7.

I've submitted a report using "Report problem", linking to this forum thread.

Sorry I misunderstood! Here's the "More Details" for the *warning*: ro.sync.exml.validate.c.r; systemId: https://www.oxygenxml.com/InstData/Addons/default/updateSite.xml; lineNumber: 317; columnNumber: 179; Include operation failed, reverting to fallback. Resource error reading file as XML...

It's no problem, I'm happy to supply whatever information you need.

But in this case, my previous note already contains the full message from the "More Details" field.

Here's the full message I get when following the steps you advised: ro.sync.exml.validate.c.r; systemId: https://www.oxygenxml.com/InstData/Addons/default/updateSite.xml; lineNumber: 317; columnNumber: 179; An 'include' failed, and no 'fallback' element was found. at ro.sync.exml.validate.c.p.e(Unkn...

Yes, I'm behind a firewall. It might be unable to validate the site's certificate

I got an error trying to do this: Invalid update site. Cause: An 'include' failed, and no 'fallback' element was found. Appears to be referring to this element in the file: <xi:include href="https://raw.githubusercontent.com/oxygenxml/oxygenxml.cgm.support/master/addon.xml" xpointer="...

Saxon 9.8 recognizes a new element <xsltPackages> in a Saxon configuration file.

http://www.saxonica.com/documentation/i ... ation-file

Will Saxon 9.8 be included in the next point release of Oxygen XML Editor?