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Release Notes

Microsoft.Data.SqlClient 2.0.0-preview4.20142.4 released 21 May 2020

This update brings the below changes over the previous release:

Added

  • Microsoft.Data.SqlClient (.NET Core and .NET Standard) on Windows is now dependent on Microsoft.Data.SqlClient.SNI.runtime, replacing the previous dependency on runtime.native.System.Data.SqlClient.SNI #570
  • The new Microsoft.Data.SqlClient.SNI.runtime dependency adds support for the ARM platform along with the already supported platforms ARM64, x64 and x86 on Windows #570
  • Improved driver performance by introducing managed packet recycling #389

Fixed

  • Fixed SqlBulkCopy to work with database columns containing metadata about data classification #568
  • Fixed unsafe cast in SqlException for SerializationEntry.Value
  • Fixed null reference exceptions in SqlDelegatedTransaction methods #563

Changes

  • Standardized connection string properties for enhanced user experience #534
  • Improved performance by reducing eventsource tracing related to allocations from TVP write methods #557 #564

Breaking Changes

  • For .NET Framework applications consuming Microsoft.Data.SqlClient, the SNI.dll files previously downloaded to the bin\x64 and bin\x86 folders are now named Microsoft.Data.SqlClient.SNI.x64.dll and Microsoft.Data.SqlClient.SNI.x86.dll and will be downloaded to the bin directory, to support auto-loading in the application process #570. This change is not going to impact client applications unless a direct reference has been made to SNI.dll or the x86 and x64 folders.
  • New connection string property synonyms will replace old properties when fetching connection string from SqlConnectionStringBuilder for consistency. Read More

New Connection string property synonyms

The below connection properties can be interchangeably used with the new synonyms to avoid spacing confusion and for an enhanced user experience.

Existing connection string property New Synonym
ApplicationIntent Application Intent
ConnectRetryCount Connect Retry Count
ConnectRetryInterval Connect Retry Interval
PoolBlockingPeriod Pool Blocking Period
MultipleActiveResultSets Multiple Active Result Sets
MultiSubnetFailover Multi Subnet Failover
TransparentNetworkIPResolution Transparent Network IP Resolution
TrustServerCertificate Trust Server Certificate

Old properties will continue to be supported for backwards compatibility, but the new connection string properties will now be included when fetching connection string from SqlConnectionStringBuilder.

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

  • Microsoft.Data.SqlClient.SNI 2.0.0-preview1.20141.10
  • Microsoft.Identity.Client 4.7.1
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.6.0
  • Microsoft.IdentityModel.JsonWebTokens 5.6.0

.NET Core 2.1

  • Microsoft.Data.SqlClient.SNI.runtime 2.0.0-preview1.20141.10
  • Microsoft.Win32.Registry 4.7.0
  • System.Security.Principal.Windows 4.7.0
  • System.Text.Encoding.CodePages 4.7.0
  • System.Diagnostics.DiagnosticSource 4.7.0
  • System.Configuration.ConfigurationManager 4.7.0
  • System.Runtime.Caching 4.7.0
  • Microsoft.Identity.Client 4.7.1
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.6.0
  • Microsoft.IdentityModel.JsonWebTokens 5.6.0

.NET Core 3.1

  • Microsoft.Data.SqlClient.SNI.runtime 2.0.0-preview1.20141.10
  • Microsoft.Win32.Registry 4.7.0
  • System.Security.Principal.Windows 4.7.0
  • System.Text.Encoding.CodePages 4.7.0
  • System.Diagnostics.DiagnosticSource 4.7.0
  • System.Configuration.ConfigurationManager 4.7.0
  • System.Runtime.Caching 4.7.0
  • Microsoft.Identity.Client 4.7.1
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.6.0
  • Microsoft.IdentityModel.JsonWebTokens 5.6.0

.NET Standard

  • Microsoft.Data.SqlClient.SNI.runtime 2.0.0-preview1.20141.10
  • Microsoft.Win32.Registry 4.7.0
  • System.Buffers 4.5.0
  • System.Memory 4.5.3
  • System.Security.Principal.Windows 4.7.0
  • System.Text.Encoding.CodePages 4.7.0
  • Microsoft.Identity.Client 4.7.1
  • Microsoft.IdentityModel.Protocols.OpenIdConnect 5.6.0
  • Microsoft.IdentityModel.JsonWebTokens 5.6.0