The new release of Saxon HE (version 9.6) claims basic support of xslt 3.0. So we're eager to test it but... errors happen. See error report at Error in SaxonHE9-6-0-1J and Bug #2160.

As with previous release Exception during execution in Saxon-HE-9.5.1-6 we bumped into engine's internal error.

We expect to see an update very soon, and to continue with long waited xslt 3.0.

Here is an argument to the discussion of open source vs commercial projects: open source projects with rich community may benefit, as problems are detected promptly; while commercial projects risk to live with more unnoticed bugs.