3.4.0

[call518]

3.4.0

Key Fix

• Fix explicit null handling in MCP tool arguments (Accept null for optional tool arguments that default to None #71): Updated 41 optional parameters across 28 tools to accept null. This resolves validation failures in clients that explicitly send null for optional arguments, while preserving existing defaults and behavior.

Testing & Maintenance

• Added schema regression coverage for null-default arguments and included it in CI.
• Limited Docker setup to integration tests, allowing unit tests to run without PostgreSQL.
• Improved README testing instructions and PostgreSQL readiness checks.
• Updated dependencies, including the MCP SDK, and GitHub Actions.

Full Changelog: 3.3.7...3.4.0

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This discussion was created from the release 3.4.0.