XSLT 3.0 Support
Saxon 9.8 implements the XSLT 3.0 Recommendation dated 8 June 2017.
XSLT 3.0 features are available in all Saxon editions. Saxon-HE includes basic conformance, serialization and XPath 3.1. Saxon-PE and Saxon-EE add XSLT 1.0 compatability mode, dynamic evaluation, and higher-order functions. Schema-awareness and streaming require Saxon-EE.
The XSLT 3.0 specification gives processors the option of supporting XPath 3.0 (plus maps), or XPath 3.1. Saxon supports XPath 3.1. The specification requires the processor to provide a mode of operation that is restricted to XPath 3.0; this is not available in Saxon 9.8.
For further details of the features implemented in the current Saxon release, and the Saxon editions in which they are available see XSLT 3.0 Conformance. Full details of these features are in the W3C XSLT and XPath specifications; but further summary information about many of them can be found in the relevant sections of the Saxon documentation listed below: