A Python library for interacting with Microsoft SQL Server

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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 v1.9.0

Enhancements

Row Objects in Bulk Copy - bulkcopy now accepts Row objects (and lists) directly, automatically converting each row to a tuple so data fetched from a query can be bulk-inserted without manual conversion (#615).

Bug Fixes

macOS / Linux Import Failure - simdutf is now always statically linked via FetchContent, embedding its symbols into the extension and fixing import failures on machines without simdutf installed at the CI build path (#608).
Incorrect Type Fallback for NULL Parameters - SQLDescribeParam results are now cached per statement when binding NULL parameters, fixing incorrect type fallbacks for all-NULL columns and VARBINARY types while also eliminating redundant server round-trips (#614).
executemany Large Decimal Handling - Fixed a SQL_C_NUMERIC type mismatch that caused runtime errors when inserting Decimal values outside the SQL Server MONEY range via executemany (#611).
Exception Pickling - All DB-API exception subclasses and ConnectionStringParseError now implement __reduce__, so they survive pickle/unpickle round-trips with all attributes preserved (#616).
PRINT Messages in nextset() - Diagnostic messages (e.g., SQL Server PRINT output) from subsequent result sets are now captured correctly when SQL_SUCCESS_WITH_INFO is returned during nextset() (#618).
Row Objects in executemany DAE Path - executemany now converts Row objects to tuples in the DAE fallback path, fixing failures when writing to varchar(max) columns (#630).
Static Type-Checking of Fetch Methods - fetchone, fetchmany, and fetchall are no longer reassigned as instance attributes, fixing type-checking failures under ty and other static type checkers (#631).

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.

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This version

1.9.0

Jun 12, 2026

1.8.0

May 29, 2026

1.7.1

May 20, 2026

1.6.0

Apr 24, 2026

1.5.0

Apr 10, 2026

1.4.0

Feb 27, 2026

1.3.0

Jan 30, 2026

1.2.0

Jan 16, 2026

1.1.0

Dec 19, 2025

1.0.0

Nov 18, 2025

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mssql-python 1.9.0

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