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Release Notes

Microsoft.Data.SqlClient 4.0.1 released 17 January 2022

This update brings the below changes over the previous preview release:

Added

  • Added AppContext switch SuppressInsecureTLSWarning to allow suppression of TLS security warning when using Encrypt=false in the connection string. #1457 Read more

Fixed

  • Fixed Kerberos authentication failure when using .NET 6. #1411
  • Fixed connection failure when using SqlLocalDB instance pipe name. #1433
  • Fixed a failure when executing concurrent queries requiring enclaves. #1451
  • Updated obsolete API calls targeting .NET 6. #1401

Suppress TLS security warnings

When connecting to a SQL Server, if a protocol lower than TLS 1.2 is negotiated, a security warning is printed out to the console. This warning can be suppressed by enabling the following AppContext switch on the application startup while Encrypt is set to false on connection string.

Switch.Microsoft.Data.SqlClient.SuppressInsecureTLSWarning

Target Platform Support

  • .NET Framework 4.6.1+ (Windows x86, Windows x64)
  • .NET Core 3.1+ (Windows x86, Windows x64, Windows ARM64, Windows ARM, Linux, macOS)
  • .NET Standard 2.0+ (Windows x86, Windows x64, Windows ARM64, Windows ARM, Linux, macOS)

Dependencies

.NET Framework

  • Microsoft.Data.SqlClient.SNI 4.0.0
  • Azure.Identity 1.3.0
  • Microsoft.Identity.Client 4.22.0
  • Microsoft.IdentityModel.JsonWebTokens 6.8.0
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 6.8.0
  • System.Buffers 4.5.1
  • System.Configuration.ConfigurationManager 5.0.0
  • System.IO 4.3.0
  • System.Runtime.InteropServices.RuntimeInformation 4.3.0
  • System.Security.Cryptography.Algorithms 4.3.1
  • System.Security.Cryptography.Primitives 4.3.0
  • System.Text.Encodings.Web 4.7.2

.NET Core

  • Microsoft.Data.SqlClient.SNI.runtime 4.0.0
  • Azure.Identity 1.3.0
  • Microsoft.Identity.Client 4.22.0
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 6.8.0
  • Microsoft.IdentityModel.JsonWebTokens 6.8.0
  • Microsoft.Win32.Registry 5.0.0
  • System.Buffers 4.5.1
  • System.Configuration.ConfigurationManager 5.0.0
  • System.Diagnostics.DiagnosticSource 5.0.0
  • System.IO 4.3.0
  • System.Runtime.Caching 5.0.0
  • System.Text.Encoding.CodePages 5.0.0
  • System.Text.Encodings.Web 4.7.2
  • System.Resources.ResourceManager 4.3.0
  • System.Security.Cryptography.Cng 5.0.0
  • System.Security.Principal.Windows 5.0.0

.NET Standard

  • Microsoft.Data.SqlClient.SNI.runtime 4.0.0
  • Azure.Identity 1.3.0
  • Microsoft.Identity.Client 4.22.0
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 6.8.0
  • Microsoft.IdentityModel.JsonWebTokens 6.8.0
  • Microsoft.Win32.Registry 5.0.0
  • System.Buffers 4.5.1
  • System.Configuration.ConfigurationManager 5.0.0
  • System.IO 4.3.0
  • System.Runtime.Caching 5.0.0
  • System.Text.Encoding.CodePages 5.0.0
  • System.Text.Encodings.Web 4.7.2
  • System.Resources.ResourceManager 4.3.0
  • System.Runtime.Loader 4.3.0
  • System.Security.Cryptography.Cng 5.0.0
  • System.Security.Principal.Windows 5.0.0