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General Availability Release

mssql‑python is now Generally Available (GA) as Microsoft’s official Python driver for SQL Server, Azure SQL, and SQL databases in Fabric. This release delivers a production‑ready, high‑performance, and developer‑friendly experience.

What makes mssql-python different?

Powered by DDBC – Direct Database Connectivity

Most Python SQL Server drivers, including pyodbc, route calls through the Driver Manager, which has slightly different implementations across Windows, macOS, and Linux. This results in inconsistent behavior and capabilities across platforms. Additionally, the Driver Manager must be installed separately, creating friction for both new developers and when deploying applications to servers.

At the heart of the mssql-python driver is DDBC (Direct Database Connectivity) — a lightweight, high-performance C++ layer that replaces the platform’s Driver Manager.

Key Advantages:

  • Provides a consistent, cross-platform backend that handles connections, statements, and memory directly.
  • Interfaces directly with the native SQL Server drivers.
  • Integrates with the same TDS core library that powers the ODBC driver.

Why is this architecture important?

By simplifying the architecture, DDBC delivers:

  • Consistency across platforms
  • Lower function call overhead
  • Zero external dependencies on Windows (pip install mssql-python is all you need)
  • Full control over connections, memory, and statement handling

Built with PyBind11 + Modern C++ for Performance and Safety

To expose the DDBC engine to Python, mssql-python uses PyBind11 – a modern C++ binding library.

PyBind11 provides:

  • Native-speed execution with automatic type conversions
  • Memory-safe bindings
  • Clean and Pythonic API, while performance-critical logic remains in robust, maintainable C++.

What's new in v1.2.0

Enhancements

  • Connection.closed Property - Added Connection.closed property to check if a connection is closed, improving connection state management.

  • Parameter as Dictionary - Added support for passing parameters as dictionaries, providing more flexible query parameterization.

  • Copilot Prompts - Introduced Copilot prompts for AI-assisted development, enhancing developer productivity.

Bug Fixes

  • FetchMany with LOB Columns - Fixed fetchmany(n) ignoring batch size when working with LOB (Large Object) columns.

  • Non-ASCII Path Resolution - Fixed path resolution for files with non-ASCII characters on Windows.

CI/Infrastructure

  • SQL Server 2025 Test Support - Added support for testing against SQL Server 2025 across Windows, macOS, and Linux CI pipelines, ensuring driver compatibility with the upcoming SQL Server release.

  • Forked PR Coverage Workflow - Implemented coverage comment workflow for pull requests from forked repositories, improving the contribution experience for external contributors.

For more information, please visit the project link on Github: https://github.com/microsoft/mssql-python

If you have any feedback, questions or need support please mail us at mssql-python@microsoft.com.

What's Next

As we continue to refine the driver and add new features, you can expect regular updates, optimizations, and bug fixes. We encourage you to contribute, provide feedback and report any issues you encounter, as this will help us improve the driver.