Preview Release 6.0.0-preview3.24332.3

Breaking Changes

• Dropped support for .NET 6 #2927
• Removed SQL 2000 client-side debugging support for .NET Framework #2981, #2940

Added

• Enabled NuGet package auditing via NuGet.org audit source #3024
• Added support for .NET 9 #2946
• Added dependency on System.Security.Cryptography.Pkcs:9.0.0 to address SYSLIB0057#2946
• Added dependency on Microsoft.Bcl.Cryptography:9.0.0 #2946
• Added missing SqlCommand_BeginExecuteReader code sample #3009
• Added support for SqlConnectionOverrides in OpenAsync() API #2433
• Added localization in Czech, Polish, and Turkish #2987

Fixed

• Reverted default value of UseMinimumLoginTimeout context switch to 'true' #2419
• Added missing DynamicallyAccessedMembers attributes in .NET Runtime reference assemblies. #2946
• Synchronized dependencies of Reference Assemblies with Runtime assemblies #2878
• Fixed lazy initialization of the _SqlMetaData hidden column map for .NET Framework #2964

Changed

• Updated Microsoft.Extensions.Caching.Memory to 9.0.0 for all frameworks #2946
• Updated System.Configuration.ConfigurationManager to 9.0.0 #2946
• Updated docs to use absolute links #2949
• Removed System.Text.Json dependency from .NET 8 #2930

Contributors

Thanks to the following public contributors. Their efforts toward this project are very much appreciated.

• @MichelZ
• @EamonHetherton
• @edwardneal
• @deadlydog
• @mus65

For detailed release notes, refer to 6.0.0-preview3.md

Preview Release v6.0.0-preview2.24304.8

Added

• Added a dependency on System.Text.Json 8.0.5 for .NET 8+ and 6.0.10 for other versions #2921
• Added support for JSON native datatype currently in Public preview in SQL Server. #2916, #2892, #2891, #2880, #2882, #2829, #2830
• Added readme to nuget package #2826

Fixed

• Fixed scale serialization when explicitly set to 0 #2411
• Fixed issue blocking GetSchema commands from being enrolled into the current transaction #2876
• Adjusted retry logic to allow errors with negative numbers to be considered transient #2896
• Fixed string formatting in OutOfMemory exceptions #2797
• Increased routing attempts to 10 in netcore for LoginNoFailover and added routing support to LoginWithFailover to standardize routing behavior between netcore and netfx #2873
• Restructured documentation into XML format so that it displays correctly in visual studio #2836, #2822, #2834, #2851, #2863, #2864, #2865, #2869, #2871, #2837, #2821
• Fixed cleanup behavior when column decryption fails. Prevents leaving stale data on the wire for pooled connections #2843, #2825

Changed

• Updated System.Configuration.ConfigurationManager from 8.0.0 to 8.0.1 for .Net 8 #2921
• Updated Microsoft.Extensions.Caching.Memory from 8.0.0 to 8.0.1 for .Net 8 #2921
• Code Health Improvements #2915, #2844, #2812, #2805, #2897, #2376, #2814, #2889, #2885, #2854, #2835, #2442, #2820, #2831, #2907, #2910, #2898, #2928, #2929, #2936, #2939

New Contributors

• @Markeli made their first contribution in #2797
• @EamonHetherton made their first contribution in #2411

For detailed release notes, refer to 6.0.0-preview2.md

Preview Release v6.0.0-preview1.24240.8

[Preview Release 6.0.0-preview1.24240.8] - 2024-08-27

This update brings the below changes over the 5.2 release:

Breaking Changes

• Removed support for .NET Standard. #2386
• Removed UWP (uap) references. #2483

Added

• Added TokenCredential object to take advantage of token caching in ActiveDirectoryAuthenticationProvider. #2380
• Added DateOnly and TimeOnly support to DataTable as a structured parameter. #2258
• Added Microsoft.Data.SqlClient.Diagnostics.SqlClientDiagnostic type in .NET. #2226
• Added scope trace for GenerateSspiClientContext. #2497, #2725

Fixed

• Fixed Socket.Connect timeout issue caused by thread starvation. #2777
• Fixed pending data with SqlDataReader against an encrypted column. #2618
• Fixed Entra authentication when using infinite connection timeout in ActiveDirectoryAuthenticationProvider. #2651
• Fixed GetSchema by excluding unsupported engines due to lack of support for ASSEMBLYPROPERTY function. #2593
• Fixed SSPI retry negotiation with default port in .NET. #2559
• Fixed assembly path in .NET 8.0 and .AssemblyAttributes. #2550
• Fixed certificate chain validation. #2487
• Fixed clone of SqlConnection to include AccessTokenCallback. #2525
• Fixed issue with DateTimeOffset in table-valued parameters, which was introduced in 5.2. #2453
• Fixed ArgumentNullException on SqlDataRecord.GetValue when using user-defined data type on .NET. #2448
• Fixed SqlBuffer and SqlGuild when it's null. #2310
• Fixed SqlBulkCopy.WriteToServer state in a consecutive calls. #2375
• Fixed null reference exception with SqlConnection.FireInfoMessageEventOnUserErrors after introducing the batch command. #2399

Changed

• Updated Microsoft.Data.SqlClient.SNI version to 6.0.0-preview1.24226.4. #2772
• Improved access to SqlAuthenticationProviderManager.Instance and avoid early object initiation. #2636
• Removed undocumented properties of Azure.Identity in ActiveDirectoryAuthenticationProvider. #2562
• Replaced System.Runtime.Caching with Microsoft.Extensions.Caching.Memory. #2493
• Updated EnableOptimizedParameterBinding to only accept text mode commands. #2417
• Updated Azure.Identity version from 1.10.3 to 1.11.4. #2577
• Updated Azure.Core version from 1.35.0 to 1.38.0. #2462
• Updated Azure.Security.KeyVault.Keys version from 4.4.0 to 4.5.0. #2462
• Updated Microsoft.IdentityModel.JsonWebTokens and Microsoft.IdentityModel.Protocols.OpenIdConnect from 6.35.0 to 7.5.0. #2429
• Removed direct dependency to Microsoft.Identity.Client to take the transient dependecy through Azure.Identity. #2577
• Removed unnecessary references Microsoft.Extensions.Caching.Memory and System.Security.Cryptography.Cng after removing .NET Standard. #2577
• Improved memory allocation when reader opened by CommandBehavior.SequentialAccess over the big string columns. #2356
• Improved SSPI by consolidating the context generation to single abstraction and using memory/span for SSPI generation. #2255, #2447
• Reverted the #2281 code changes on ManagedSNI. #2395
• Updated assembly version to 6.0.0.0. #2382
• Code health improvements: #2366, #2369, #2381, #2390, #2392, #2403, #2410, #2413, #2425, #2428, #2440, #2443, #2450, #2466, #2486, #2521, #2522, #2533, #2552, #2560, #2726, #2751, #2811

For detailed release notes, refer to 6.0.0-preview1.md

Stable release v5.1.6

[Stable release 5.1.6] - 2024-08-27

Fixed

• Fixed Transient fault handling issue with OpenAsync. #1983 #2508
• Fixed AcquireTokenAsync timeout handling for edge cases in ActiveDirectoryAuthenticationProvider. #2706
• Fixed pending data with SqlDataReader against an encrypted column. #2618 #2818

Changed

• Upgraded Azure.Identity version from 1.11.3 to 1.11.4 [#2649] (#2649) [#2529] (#2529) to address CVE-2024-35255.
• Upgraded Microsoft.Identity.Client version from 4.60.0 to 4.61.3 [#2649] (#2649) [#2529] (#2529) to address CVE-2024-35255.
• Added caching to TokenCredential objects to take advantage of token caching. #2776
• Code health improvements: [#2490] (#2490)

Stable release v5.2.2

[Stable release 5.2.2] - 2024-08-27

Fixed

• Fixed AcquireTokenAsync timeout handling for edge cases in ActiveDirectoryAuthenticationProvider. #2650
• Fixed issue with Socket.Connect in managed SNI. #2779
• Fixed path for AssemblyAttributes in obj folder causing NET 8.0 assembly to appear in NET 6.0 dll. #2789
• Fixed SSPI retry negotiation with default port in .NET. #2815
• Fixed ArgumentNullException on SqlDataRecord.GetValue when using user-defined data type on .NET. #2816
• Fixed pending data with SqlDataReader against an encrypted column. #2817

Changed

• Upgraded Azure.Identity version from 1.11.3 to 1.11.4 #2648 to address CVE-2024-35255.
• Upgraded Microsoft.Identity.Client version from 4.60.0 to 4.61.3 #2648 to address CVE-2024-35255.
• Added caching to TokenCredential objects to take advantage of token caching. #2775

Stable release v4.0.6

[Stable release 4.0.6] - 2024-08-21

Fixed

• Fixed connection to unsubscribe from transaction completion events before returning it to the connection pool #2301 #2435
• Fixed AcquireTokenAsync timeout handling for edge cases in ActiveDirectoryAuthenticationProvider #2707

Changed

• Code health improvements: #2147, #2513, #2519

Stable release v3.1.7

[Stable release 3.1.7] - 2024-08-20

Fixed

• Fixed connection to unsubscribe from transaction completion events before returning it to the connection pool. #2301 #2434
• Fixed AcquireTokenAsync timeout handling for edge cases in ActiveDirectoryAuthenticationProvider. #2709
• Fixed the signing issue with Microsoft.Data.SqlClient assembly. #2789

Changed

• Updated Microsoft.Data.SqlClient.SNI version 3.0.1 to 3.0.2 #2676 which includes the fix for AppDomain crashing in issue #1418 and various code refactors.
• Code health improvements: #2147, #2515, #2517 addresses CVE-2019-0545, #2539

Stable release v5.2.1

[Stable release 5.2.1] - 2024-05-31

Fixed

• Fixed connection errors on Linux when Data Source property contains both named instance and port #2436
• Fixed SqlConnection.FireInfoMessageEventOnUserErrors when set to true throws an exception #2505
• Fixed exception when using DATETIMEOFFSET(n) in a TVP if n is 1, 2, 3, or 4 #2506
• Reverted PR #1983 which caused connection failure delays when using OpenAsync #2507
• Fixed SqlConnection.Clone() to include AccessTokenCallback #2527

Changed

• Upgraded Azure.Identity version from 1.10.3 to 1.11.3 #2492, #2528
• Upgraded Microsoft.Identity.Client version from 4.56.0 to 4.60.3 #2492
• Code Health improvements: #2467

Stable release v5.2.0

[Stable release 5.2.0] - 2024-02-28

Added

• Added a new AccessTokenCallBack API to SqlConnection. #1260
• Added SqlBatch support on .NET 6+ #1825, #2223,#2371, #2373
• Added support of SqlDiagnosticListener on .NET Standard. #1931
• Added new property RowsCopied64 to SqlBulkCopy. #2004
• Added support for the SuperSocketNetLib registry option for Encrypt on .NET on Windows. #2047
• Added the ability to generate debugging symbols in a separate package file #2137
• Added Workload Identity authentication support #2159, #2264
• Added support for Big Endian systems #2170
• Added support for Georgian collation #2194
• Added Localization support on .NET #2210
• 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

Changed

• Improved parsing buffered characters in TdsParser. #1544
• Added Microsoft.SqlServer.Types to verify support for SqlHierarchyId and Spatial for .NET Core. #1848
• Moved to new System.Data.SqlTypes APIs on .NET 7 and up. #1934 and #1981
• Removed reference to Microsoft.Win32.Registry since it's shipped starting with .NET 6.0. #1974
• Changed UseOneSecFloorInTimeoutCalculationDuringLogin App Context switch default to true and extended its effect to .NET and .NET Standard. #2012
• Updated Microsoft.Identity.Client version from 4.47.2 to 4.53.0. #2031, #2055
• Switched to the new .NET NegotiateAuthentication API on .NET 7.0 and above for SSPI token negotiation using Managed SNI. #2063
• Removed ignoreSniOpenTimeout in open connection process on Windows. #2067
• Enforce explicit ordinal for internal StringComparison operations. #2068
• Improved error messages when validating server certificates in managed SNI (Linux/macOS) #2060
• Improved CPU usage when AppContext switches are in use #2227
• Upgraded Azure.Identity dependency version to 1.10.3 to address CVE-2023-36414, #2189
• Changed Microsoft.IdentityModel.JsonWebTokens and Microsoft.IdentityModel.Protocols.OpenIdConnect version 6.24.0 to 6.35.0 #2290 to address CVE-2024-21319
• Updated Microsoft.Data.SqlClient.SNI (.NET Framework dependency) and Microsoft.Data.SqlClient.SNI.runtime (.NET/.NET Standard dependency) version to v5.2.0. #2363, which includes removing dead code and addressing static analysis warnings
• Code health improvements: #1198, #1829, #1943, #1949, #1959, #1985, #2071, #2073, #2088, #2091, #2098, #2121, #2122, #2132, #2136, #2144, #2147, #2157, #2164, #2166, #2168, #2186, #2254, #2288, #2305, #2317

Fixed

• Fixed Always Encrypted secure enclave retry logic for async queries. #1988
• Fixed activity correlator to continue use of same GUID for connection activity. #1997
• Fixed behavior when error class is greater than 20 on connection retry. #1953
• Fixed error message when symmetric key decryption failed using Always Encrypted. #1948
• Fixed TransactionScope connection issue when Enlist is enable, Pooling is disabled and network connection type is Redirect. #1960
• Fixed TDS RPC error on large queries in SqlCommand.ExecuteReaderAsync. #1936
• Fixed throttling of token requests by calling AcquireTokenSilent. #1925
• Fixed Linux code coverage result in Build proj. #1950
• Fixed NullReferenceException in GetBytesAsync. #1906
• Fixed Transient fault handling issue with OpenAsync. #1983
• Fixed invariant mode checks. #1917
• Fixed GC behavior in TdsParser by adding array rental capability in TryReadPlpUnicodeChars. #1866
• Fixed socket synchronization issue during connect in managed SNI. #1029
• Fixed issue with SqlConnectionStringBuilder property indexer not supporting non-string values. #2018
• Fixed SqlDataAdapter.Fill and configurable retry logic issue on .NET Framework. #2084
• Fixed SqlConnectionEncryptOption type conversion by introducing the SqlConnectionEncryptOptionConverter attribute when using appsettings.json files. #2057
• Fixed th-TH culture info issue on Managed SNI. #2066
• Fixed an issue when using the Authentication option, but not encrypting on .NET Framework where the server certificate was being incorrectly validated #2224
• Fixed a deadlock problem for distributed transactions when on .NET #2161
• Fixed an issue with connecting to named instances on named pipes in managed SNI (Linux/macOS) #2142
• Fixed LocalDb connection issue with an invalid source when using managed SNI #2129
• Fixed an AccessViolationException when using a SQL Express user instance #2101
• Fixed a metadata query issue when connecting to Azure SQL Edge #2099
• Fixed file version information for .NET and .NET Standard binaries #2093
• Fixed the SPN sent for a named instance when using Kerberos authentication on Linux/macOS #2240
• 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

[AzureKeyVaultProvider] Stable Release v5.1.0

Changed

• Changed Microsoft.Data.SqlClient version 3.0.0 to 5.1.5 #2330
• Changed Azure.Core version 1.6.0 to 1.35.0 #2330
• Changed Azure.Security.KeyVault.Keys 4.0.3 to 4.5.0 #2330
• Changed Microsoft.Extensions.Caching.Memory 5.0.0 to 8.0.0 for .Net 8.0 and 6.0.1 for other Target frameworks #2330