Welcome to the home of the Microsoft ADO.NET driver for SQL Server aka the Microsoft.Data.SqlClient GitHub repository.

Microsoft.Data.SqlClient is a data provider for Microsoft SQL Server and Azure SQL Database. Now in General Availability, it is a union of the two System.Data.SqlClient components which live independently in .NET Framework and .NET Core. Going forward, support for new SQL Server features will be implemented in Microsoft.Data.SqlClient.

The Microsoft.Data.SqlClient package supports the below environments:

• .NET Framework 4.6+
• .NET Core 2.1+
• .NET Standard 2.0+.

The source code of this library is now available under the MIT license.

The Microsoft.Data.SqlClient NuGet package is available on NuGet.org.

For the .NET Framework driver on Windows, a package reference to Microsoft.Data.SqlClient.SNI loads x64 and x86 platform specific SNI.dll libraries into the client's build directories.

For the .NET Core driver on Windows, a package reference to runtime.native.System.Data.SqlClient.sni loads arm64, x64 and x86 platform specific SNI.dll libraries into the client's build directories.

All preview and stable driver release notes are available under release-notes.

Check out our FAQ. Still not answered? Create an issue to ask a question.

The Microsoft.Data.SqlClient Driver for SQL Server is licensed under the MIT license. See the LICENSE file for more details.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.