Documentation changes
Packaging, installation, and licensing changes
XSLT 3.0 implementation
XQuery 3.0 implementation
XPath 2.0 implementation
XPath 3.0 implementation
Functions, operators, and data types for XPath 3.0
XML Schema 1.0 implementation
XML Schema 1.1 implementation
XQuery Updates implementation
Serialization
Saxon extensions to the W3C XSLT/XQuery specifications
Saxon SQL extension instructions
S9API interface
Changes specific to .NET
Command line interfaces
Extensibility mechanisms
System Programming Interfaces
Internal changes
Streamed processing of input documents
Using Saxon from Ant