schemathesis/schemathesis v4.10.0

Release 4.10.0

on GitHub

🚀 Added

• Negative testing support for GraphQL schemas. #2355

🐛 Fixed

• Misleading "Schema Error: Cannot generate test data" when filter_case hook rejects all generated cases. Now reports "Hook Error" with actionable guidance.
• Incorrect HTTP method shown in failure headers during coverage phase. #3322
• False positive negative_data_rejection failures for format: password and other formats without validation semantics. #3480

🔧 Changed

• Use jsonschema-rs for data validation instead of jsonschema.
• Docker images now use free-threaded Python 3.14 with GIL disabled (PYTHON_GIL=0), providing up to 65% faster multi-worker execution.