Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

New feature: Support for macOS and Linux.
Documentation: Added API documentation in the Wiki.
Bulk copy now supports Authentication=ActiveDirectoryServicePrincipal via an entra_id_token_factory callback registered on the mssql-py-core connection. The callback is invoked by mssql-tds mid-handshake (FedAuth workflow 0x02) so the tenant id can be resolved from the server-supplied STS URL. Requires mssql-py-core 0.1.5+. Partial fix for #534.
Standalone mssql-python-odbc package (PRs #663, #664): the Microsoft ODBC Driver 18 for SQL Server binaries are now also published as a separate, platform-specific mssql-python-odbc package. When it is installed, the native driver loader resolves the driver from it; when it is absent or incomplete, mssql-python transparently falls back to its own bundled libs/. This is a non-breaking step toward decoupling driver-binary updates from mssql-python releases; a future major version will make the dependency explicit and drop the bundled binaries.

Improved error handling in the connection module.
GH-627 behavioral change: NULL parameters for VARBINARY/BINARY columns on physical tables now succeed silently (previously raised ProgrammingError when a non-NULL parameter was bound first). For temp tables where SQLDescribeParam cannot determine column metadata, the fallback to SQL_VARCHAR still produces the same ProgrammingError as before; users should call cursor.setinputsizes() to work around this.

Bug fix: Resolved issue with connection timeout.
GH-627: Fixed SQLDescribeParam ordinal remapping bug that caused VARBINARY/BINARY NULL bindings to fail when a non-NULL parameter was bound first. The driver now pre-resolves unknown NULL parameter types before any SQLBindParameter calls, avoiding ODBC ordinal confusion.