Release of the SPHN Interoperability Framework 2026-1 with: - the SPHN Dataset 2026.1 - the SPHN RDF Schema 2026.1 - the HTML documentation of the new SPHN RDF Schema - the migration path highlighting differences between the SPHN RDF Schema 2026.1 and 2025.2 - the SHACLs and SPARQLs compliant with the new version of the SPHN RDF Schema - the SPHN Dataset Template 2026.1 according to the new version of the SPHN Dataset