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Release Notes

General Availability of Microsoft.Data.SqlClient 1.1.0 released 20 November 2019

This update brings the below changes over the previous release:

Added

  • Added support for |DataDirectory| macro in AttachDBFilename for .NET Core client #284

Fixed

  • Fixed connection resiliency check #310
  • Fixed SNIPacket.ReadFromStreamAsync to not consume same ValueTask twice #295
  • Fixed driver behavior to not send Attention signal for successful Bulk Copy operation #308
  • Fixed driver behavior to abort connection when encountering SqlException on SqlTransaction.Commit #299
  • Fixed driver behavior to not throw exception on invalid app.config files #319

Changes

  • Improved async read performance by adding multi-packet target buffer caching #285
  • Improved performance of TdsParserStateObject and SqlDataReader snapshot mechanisms #198
  • Updated SqlDataReader.Close documentation #314

New Features

New features over the 1.0 release of Microsoft.Data.SqlClient.

Target Platform Support

  • .NET Framework 4.6+
  • .NET Core 2.1+ (Windows x86, Windows x64, Linux, macOS)
  • .NET Standard 2.0+ (Windows x86, Windows x64, Linux, macOS)

Dependencies

.NET Framework

  • System.Data.Common 4.3.0
  • Microsoft.Data.SqlClient.SNI 1.1.0
  • Microsoft.Identity.Client 3.0.8
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.5.0
  • Microsoft.IdentityModel.JsonWebTokens 5.5.0

.NET Core

  • Microsoft.Win32.Registry 4.5.0
  • runtime.native.System.Data.SqlClient.sni 4.4.0
  • System.Security.Principal.Windows 4.5.0
  • System.Text.Encoding.CodePages 4.5.0
  • System.Configuration.ConfigurationManager 4.5.0
  • Microsoft.Identity.Client 3.0.8
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.5.0
  • Microsoft.IdentityModel.JsonWebTokens 5.5.0

.NET Standard

  • Microsoft.Win32.Registry 4.5.0
  • runtime.native.System.Data.SqlClient.sni 4.4.0
  • System.Buffers 4.4.0
  • System.Diagnostics.DiagnosticSource 4.5.0
  • System.Memory 4.5.1
  • System.Security.Principal.Windows 4.5.0
  • System.Text.Encoding.CodePages 4.5.0
  • System.Configuration.ConfigurationManager 4.5.0
  • Microsoft.Identity.Client 3.0.8

C++ Runtime Required on Windows

When running on Windows, this library has a dependency on Microsoft.Data.SqlClient.SNI on .NET Framework and runtime.native.System.Data.SqlClient.sni on .NET Core, which requires the Microsoft Visual C++ Redistributable to be installed: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Always Encrypted with secure enclaves

In general, existing documentation which uses System.Data.SqlClient on .NET Framework should now work with .NET Core, too.

In order to use the enclave feature, connection strings should include the required attestation protocol and attestation URL. Examples:

  • Attestation Protocol=HGS;Enclave Attestation Url=<attestation_url_for_HGS>