Microsoft ODBC Driver for SQL Server is a single dynamic-link library (DLL) containing run-time support for applications using native-code APIs to connect to SQL Server. Use Microsoft ODBC Driver 18 for SQL Server to create new applications or enhance existing applications that need to take advantage of newer SQL Server features.
The redistributable installer for Microsoft ODBC Driver 18 for SQL Server installs the client components, which are required during run time to take advantage of newer SQL Server features. It optionally installs the header files needed to develop an application that uses the ODBC API. Starting with version 17.4.2, the installer also includes and installs the Microsoft Active Directory Authentication Library (ADAL.dll).
Version 18.4.1.1 is the latest general availability (GA) version. If you have a previous version of Microsoft ODBC Driver 18 for SQL Server installed, installing 18.4.1.1 upgrades it to 18.4.1.1. The Microsoft ODBC Driver 18 for SQL Server can be installed side by side with Microsoft ODBC Driver 17 for SQL Server.
Use the x86 installer for 32-bit machines, or the x64 installer to install both 64-bit and 32-bit drivers on a 64-bit machine.
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This release of Microsoft ODBC Driver for SQL Server can be installed in the following languages:
Version 17.10.6 is the latest general availability (GA) version of the 17.x driver. If you have a previous version of Microsoft ODBC Driver 17 for SQL Server installed, installing 17.10.6 upgrades it to 17.10.6.
This release of Microsoft ODBC Driver for SQL Server can be installed in the following languages:
For details about this release on Windows, see the Windows release notes.
The Microsoft ODBC Driver for SQL Server can be downloaded and installed using package managers for Linux and macOS using the relevant installation instructions:
Install ODBC for SQL Server (Linux)
Install ODBC for SQL Server (macOS)
If you need to download the packages for offline installation, all versions are available via the below links.
Packages named msodbcsql18-* are the latest version. Packages named msodbcsql-* are version 13 of the driver.
For details about releases for Linux and macOS, see the Linux and macOS release notes.