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Saxonica releases Saxon 13.0

June 23, 2026

Submitted by Norm Tovey-Walsh.

Saxonica is pleased to announce the release of Saxon 13.0. This is a new release for Java, C#, C/C++, PHP, and Python. The highlights in this release are:

  • A redesigned Schema API that allows multiple schemas to coexist. You can now validate an input document with one schema and the result with another, even for the same namespace.
  • More than 175 features from the draft 4.0 specifications are now available in Saxon-PE and Saxon-EE, including:
    • JNodes, path navigation over trees of JSON maps and arrays,
    • Lookahead and lookbehind in regular expressions,
    • Functions for CSV parsing,
    • Functions for parsing with Invisible XML, and
    • More flexible XML-to-JSON conversions with fn:element-to-map.
  • Support for SaxonC extension functions written in C++, Python, and PHP.
  • SaxonCS-HE, our first release of the free Saxon HE product built for .NET with C#.

For additional details and download links, seeĀ our release announcement.


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