Released: Microsoft.Data.SqlClient 5.2 Preview 5
Published Jan 31 2024 09:00 AM 1,850 Views

Microsoft.Data.SqlClient 5.2 Preview 5 has been released. This release contains improvements and updates to the Microsoft.Data.SqlClient data provider for SQL Server.

Our plan is to provide regular GA releases with several preview releases in between. This cadence should provide time for feedback and allow us to deliver features and fixes in a timely manner. This 5.2 preview includes fixes and changes over the previous preview release.



  • Added .NET 8 support #2230
  • Added explicit version for major .NET version dependencies on System.Runtime.Caching 8.0.0, System.Configuration.ConfigurationManager 8.0.0, and System.Diagnostics.DiagnosticSource 8.0.0 #2303
  • Added the ability to generate debugging symbols in a separate package file #2137


  • Changed Microsoft.IdentityModel.JsonWebTokens and Microsoft.IdentityModel.Protocols.OpenIdConnect version 6.24.0 to 6.35.0 #2290 to address CVE-2024-21319


  • Fixed connection to unsubscribe from transaction completion events before returning it to the connection pool #2301
  • Fixed InvalidCastException when reading an Always Encrypted date or time column #2275
  • Fixed token caching to prevent expired access tokens from being reused in a connection pool #2273
  • Code health improvements: #2288, #2305, #2254, #2317


For the full list of changes in Microsoft.Data.SqlClient 5.2 Preview 5, please see the Release Notes.


To try out the new package, add a NuGet reference to Microsoft.Data.SqlClient in your application and pick the 5.2 preview 5 version.


We appreciate the time and effort you spend checking out our previews. It makes the final product that much better. If you encounter any issues or have any feedback, head over to the SqlClient GitHub repository and submit an issue.


David Engel

Version history
Last update:
‎Jan 31 2024 09:00 AM
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