• Add support for Python 3.13 and 3.14
• Drop support for Python 3.9. Now only 3.10+ is supported
• Migrate from Poetry to uv as the package manager and build tool
• Switch build backend from poetry-core to hatchling
• Replace assert with ConfigurationError in Plugin.process_request for clearer error messages
• Replace Black with ruff format for code formatting
• Replace deprecated HTTP_422_UNPROCESSABLE_ENTITY with HTTP_422_UNPROCESSABLE_CONTENT