Used to allow components of one package to be referenced within another.
The name of the package to be used, as an absolute URI.
The version of the named package
to be used. The default is
Notes on the Saxon implementation
New in XSLT 3.0, and first fully implemented in Saxon 9.7.
The rules for matching of package version numbers are more completely implemented in Saxon 9.8.
If the configuration file defines multiple versions of the same package, the first one that
satisfied the required version specified in the
In Saxon-HE, the requested package must already exist in compiled form in memory. With Saxon-PE and Saxon-EE it can be loaded from a SEF file in filestore (or accessible from the web via a URI).