2026-10-26 - v0.40.2 - Robustness

• Oxigraph-backed validation no longer computes len() of the whole data graph for every validation result.
  • datagraph or sg evaluated the truthiness of the DataGraph, which on Oxigraph runs a COUNT query over the entire store.
  • Thanks @lepy
• Plain string literals read from an Oxigraph store now compare equal to plain literals in the shapes graph.
  • Oxigraph reports them as xsd:string; they are now mapped back to plain RDFLib literals, which fixes false violations of sh:in, sh:hasValue and similar constraints.
  • Thanks @lepy
• Add concurrency lock when adding system triples to the data graph, and only install the triples if they're not present in the graph.
  • Thanks @mhatipog
• Quick fix for when using PYSHACL_USE_FULL_MIXIN=1, the ontology mixer returns a plain Graph or Datagraph, not a wrapper.
  • Better fix incoming next release from @AndreasEhstandLicenseofClarityLOC