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Updated coverlet.collector from 6.0.4 to 10.0.1.

Release notes

Sourced from coverlet.collector's releases.

10.0.1

Improvements

Fixed

  • Fix inconsistent paths in cobertura reports #​1723
  • Fix when using "is" with "and" in pattern matching, branch coverage is lower than normal #​1313
  • Fix Coverlet flagging a branch for an async functions finally block where none exists #​1337
  • Fix Coverlet Tracker Missing CompilerGeneratedAttribute #​1828

Maintenance

  • Add architecture docs and diagrams for all integrations #​1927
  • Update NuGet packages and .NET SDK versions #​1933

Diff between 10.0.0 and 10.0.1

10.0.0

Improvements

  • Unique Report Filenames (coverlet.MTP and AzDO) #​1866
  • Add --coverlet-file-prefix option for unique report files #​1869
  • Introduce .NET 10 support #​1823

Fixed

  • Fix [BUG] Wrong branch rate on IAsyncEnumerable for generic type #​1836
  • Fix [BUG] Missing Coverage after moving to MTP #​1843
  • Fix [BUG] No coverage reported when targeting .NET Framework with 8.0.1 #​1842
  • Fix [BUG] Behavior changes between MTP and Legacy (msbuild) #​1878
  • Fix [BUG] Coverlet.MTP - Unable to load coverlet.mtp.appsettings.json #​1880
  • Fix [BUG] Coverlet.Collector produces empty report when Mediator.SourceGenerator is referenced #​1718 by https://github.com/yusyd
  • Fix [BUG] Crash during instrumentation (Methods using LibraryImport/DllImport have no body) #​1762

Maintenance

  • Add comprehensive async method tests and documentation for issue #​1864
  • Replace Tmds.ExecFunction Package in coverlet.core.coverage.tests #​1833
  • Add net9.0 and net10.0 targets #​1822

Diff between 8.0.1 and 10.0.0

8.0.1

Fixed

  • Fix [BUG] TypeInitializationException when targeting .NET Framework #​1818
  • Fix [BUG] coverlet.MTP build fails with CS0400 due to developmentDependency=true #​1827

Improvements

  • Additional improvements needed for .NET Framework instrumentation type import #​1825

Diff between 8.0.0 and 8.0.1

8.0.0

Special Thanks: A huge thank you to @​Bertk for driving the majority of the work in this release! 🎉

Fixed

Improvements

  • Coverlet MTP extension feature #​1788
  • Generate SBOM for nuget packages #​1752
  • Use multi targets projects for coverlet.collector, coverlet.msbuild.tasks packages #​1742
  • Use .NET 8.0 target framework for coverlet.core and remove Newtonsoft.Json #​1733
  • Use latest System.CommandLine version #​1660
  • Upgraded minimum required .NET SDK and runtime to .NET 8.0 LTS (Long Term Support) (Breaking Change)
  • Use xunit.v3 for tests and example code

Diff between 6.0.4 and 8.0.0

Commits viewable in compare view.

Updated FluentAssertions from 8.10.0 to 8.11.0.

Release notes

Sourced from FluentAssertions's releases.

8.11.0

What's Changed

New features

Improvements

Fixes

Documentation

Others

New Contributors

Full Changelog: fluentassertions/fluentassertions@8.10.0...8.11.0

Commits viewable in compare view.

Updated Microsoft.Data.SqlClient from 7.0.2 to 7.1.0.

Release notes

Sourced from Microsoft.Data.SqlClient's releases.

7.1.0

This is the general availability release of Microsoft.Data.SqlClient 7.1. It closes out the 7.1 preview cycle with application identity reporting for telemetry, the deprecation of TransparentNetworkIPResolution, and a set of connection, transaction, and Named Pipes fixes.

Important — package version alignment: Starting with the 7.0.2 release, the Microsoft.Data.SqlClient driver and its companion packages share a single aligned version. The 7.1.0 GA release continues this alignment; the following packages ship together as 7.1.0:

  • Microsoft.Data.SqlClient
  • Microsoft.Data.SqlClient.AlwaysEncrypted.AzureKeyVaultProvider
  • Microsoft.Data.SqlClient.Extensions.Azure
  • Microsoft.Data.SqlClient.Extensions.Abstractions
  • Microsoft.Data.SqlClient.Internal.Logging

(Microsoft.SqlServer.Server continues to version independently and remains at 1.0.0.)

Applications must reference the same versions of Microsoft.Data.SqlClient and its extensions for best compatibility. In particular, applications that reference Microsoft.Data.SqlClient.Extensions.Azure must upgrade it to 7.1.0 when upgrading Microsoft.Data.SqlClient to 7.1.0.

Compatibility guarantee: All aligned assemblies ship with FileVersion 7.1.0.x and AssemblyVersion 7.0.0.0. The AssemblyVersion is unchanged from 7.0.2, so upgrading from 7.0.2, 7.0.3, or any 7.1 preview to 7.1.0 does not require any new .NET Framework strong-name binding redirects. Applications upgrading from 7.0.0 or 7.0.1 should note that Extensions.Azure, Extensions.Abstractions, and Internal.Logging raised their AssemblyVersion from 1.0.0.0 to 7.0.0.0 in 7.0.2; see those release notes for the one-time .NET Framework impact.

Companion package release notes

Changes Since 7.1.0-preview3

Added

Application Identity in the USERAGENT Payload

What Changed:

  • Added a RegisteredApplication enum and a matching SqlConnection.RegisteredApplication property that let a library or tool identify itself to SQL Server through version 2 of the TDS USERAGENT feature extension. The payload also carries a new driver-owned 64-bit Driver Properties flag field; bit 0 reports whether connection pool V2 is enabled for the process. Both fields are emitted as unpadded uppercase hexadecimal. (#​3201, #​4632)

Who Benefits:

  • Middleware and tooling built on top of the driver — Entity Framework Core, Semantic Kernel, SQL Server Management Studio, SqlPackage, Data API Builder, and similar — can be distinguished in server-side telemetry without the driver accepting arbitrary user-supplied user-agent text. This originated as a request from the Entity Framework Core team.
  • Service operators gain a more accurate picture of which client stacks are connecting, which helps when diagnosing workload-specific behavior.

Impact:

  • Purely additive from the application's perspective: a newly created physical connection whose RegisteredApplication is unset reports Unknown (0). On the wire the field itself is new — USERAGENT payload v1 carried no application identifier, while v2 always emits one.
  • Set the property before calling Open or OpenAsync. Assigning it while the connection is connecting or open throws InvalidOperationException.
using var connection = new SqlConnection(connectionString);
connection.RegisteredApplication = RegisteredApplication.EntityFrameworkCore;
await connection.OpenAsync();
  • The enum is ushort-backed and marked [CLSCompliant(false)]. Values are partitioned by range: 0x0001–0x7FFF for Microsoft-defined large-scale applications, 0x8000–0xBFFF for small-scale use, and 0xC000–0xFFFF for public/developer use. Applications that are not yet registered can cast an unassigned value from the appropriate range.
    ... (truncated)

7.1.0-preview3

This update brings the following changes since the 7.1.0-preview2 release.

Package version alignment: The Microsoft.Data.SqlClient driver and its companion packages continue the aligned versioning introduced in 7.0.2. All five packages listed below ship together as 7.1.0-preview3. (Microsoft.SqlServer.Server continues to version independently and remains at 1.0.0.) Applications that reference Microsoft.Data.SqlClient.Extensions.Azure must upgrade it to 7.1.0-preview3 when upgrading Microsoft.Data.SqlClient.

Compatibility guarantee: All aligned assemblies ship with FileVersion 7.1.0.x and AssemblyVersion 7.0.0.0 — unchanged from 7.0.2 — so upgrading from 7.0.2 to 7.1.0-preview3 does not require any new .NET Framework strong-name binding redirects.

Packages in this release

Microsoft.Data.SqlClient 7.1.0-preview3

Added

  • Asynchronous key store provider APIs for Always Encrypted — four virtual methods on SqlColumnEncryptionKeyStoreProvider with CancellationToken support. Purely additive; defaults delegate to the synchronous methods, so existing providers are unaffected (#​3672, #​3673)
  • Connection Pool V2 nears parity with the default pool (opt-in via Switch.Microsoft.Data.SqlClient.UseConnectionPoolV2):
    • Transaction support (#​4487)
    • Broken-connection replacement during command execution (#​4429)
    • Background warmup to Min Pool Size and automatic replenishment (#​4452)
    • Idle pruning driven by Connection Idle Timeout (#​4463)
    • Optional ConcurrencyLimiter rate limiting for new physical connections (#​4395, #​4396)
    • Leaked connection reclamation, including the previously always-zero number-of-reclaimed-connections counter (#​4529)
    • Metrics and tracing parity with the default pool (#​4504)

Changed

  • Single cross-platform build — Windows-only native SNI types now trim cleanly on Linux and macOS. Package structure and contents unchanged (#​4207, #​4239, #​4465, #​4474)
  • Async read-path allocations restored to baseline via PacketData node reuse — ExecuteReaderAsync goes from +120.9% to +0.1% against 6.1.6 (#​4536)
  • SqlBulkCopy skips graph alias mapping when no graph pseudo-columns are present, recovering a regression from #​3677 (#​4535)
  • No formatted trace string is allocated when SqlClientEventSource tracing is disabled, recovering a memory regression against 6.1.6. Trace output unchanged (#​4528)
  • net9.0 dependencies moved to 9.0.18; System.Threading.RateLimiting added to packaged metadata. Other targets keep their 8.0.x pins (#​4507)
  • Microsoft.Data.SqlClient.SNI and .SNI.runtime updated to 7.1.0-preview3.26226.3 (#​4564)

Fixed

  • Always Encrypted VSM/HGS attestation now verifies the enclave public key is bound to the signed report, using a fixed-time SHA-256 comparison against EnclaveData (#​4532)
  • SqlConnectionFactory no longer wakes the process every 30 seconds when no pools exist — including with Pooling=False and after ClearAllPools() (#​1881, #​4479)
  • Connection pool performance counters affecting the default pool as well as pool V2 — active-soft-connects and number-of-active-connections could go negative after a failed activation, and several gauges drifted upward permanently after a broken connection was replaced (#​4504)
  • OverflowException when sending large decimal values with explicit Precision and Scale, which primarily affected Always Encrypted (#​1655, #​4443)
  • TDS stream error when passing a DateOnly value with SqlDbType.Variant (net8.0/net9.0) (#​3953, #​4294)
  • DateOnly in table-valued parameter sql_variant columns sent as datetime instead of date, which overflowed for values valid as date (net8.0/net9.0) (#​3934, #​4439)
  • ServerCertificate keyword ignored when the platform reported no TLS policy errors. It is now always compared, and an unloadable certificate fails closed with SSLCertificateAuthenticationException instead of silently falling back to host-name validation (#​4445)
  • SqlConnection.AccessTokenCallback not disabling TNIR by default, plus pool-key construction and SspiContextProvider exclusivity with token auth (net462 for the TNIR behavior) (#​4520)
  • Fatal exceptions such as OutOfMemoryException captured into faulted Tasks across several SqlBulkCopy, SqlDataReader, and SqlCommand async entry points (#​4437)
  • Entra ID authentication failing against multi-segment authorities such as the Dataverse / Dynamics 365 TDS endpoint. Ships in Microsoft.Data.SqlClient.Extensions.Azure (#​4496, #​4521)

Full details: release-notes/7.1/7.1.0-preview3.md

Microsoft.Data.SqlClient.AlwaysEncrypted.AzureKeyVaultProvider 7.1.0-preview3

Added

  • SqlColumnEncryptionAzureKeyVaultProvider overrides the four asynchronous key store provider methods introduced in #​3673, calling the Azure SDK's own async APIs and flowing the supplied CancellationToken (#​4540)
  • Concurrent cache misses for the same key collapse into a single Key Vault request. The gate is only awaited, so no thread blocks, and misses for different keys still proceed in parallel (#​4540)
    ... (truncated)

7.1.0-preview2

This update brings the following changes since the 7.1.0-preview1 release.

Package version alignment: The Microsoft.Data.SqlClient driver and its companion packages continue the aligned versioning introduced in 7.0.2. All five packages listed below ship together as 7.1.0-preview2. (Microsoft.SqlServer.Server continues to version independently and remains at 1.0.0.) Applications that reference Microsoft.Data.SqlClient.Extensions.Azure must upgrade it to 7.1.0-preview2 when upgrading Microsoft.Data.SqlClient.

Compatibility guarantee: All aligned assemblies ship with FileVersion 7.1.0.x and AssemblyVersion 7.0.0.0 — unchanged from 7.0.2 — so upgrading from 7.0.2 to 7.1.0-preview2 does not require any new .NET Framework strong-name binding redirects.

Packages in this release

Microsoft.Data.SqlClient 7.1.0-preview2

Added

  • SqlConnection.GetSchemaAsync overloads with CancellationToken support (#​3005)
  • SQL Graph pseudo-column aliases ($node_id, $edge_id, $from_id, $to_id) accepted in SqlBulkCopy mappings (#​3677)
  • SqlBatchCommand.CommandBehavior and SqlBatch.ExecuteReader(CommandBehavior) are now honored (#​4125)
  • Configurable idle connection timeout via Connection Idle Timeout / SqlConnectionStringBuilder.IdleTimeout (opt-in via Switch.Microsoft.Data.SqlClient.UseLegacyIdleTimeoutBehavior=false) (#​4295)

Changed

  • Connect Timeout now propagates through the pool when Switch.Microsoft.Data.SqlClient.UseOverallConnectTimeoutForPoolWait=true is set (default off; introduces a Microsoft.Bcl.TimeProvider dependency) (#​4270)
  • SQL Server 2025 json type added to the DataTypes collection returned by SqlConnection.GetSchema (#​3858)
  • Internal state-machine hardening via Interlocked.CompareExchange guards (#​4267)
  • Internal cleanup of connection-options inheritance and related pool interfaces (#​4237, #​4261, #​4235, #​4415, #​4334)
  • LCID hardcoded mappings to avoid repeated culture lookups (#​4212)
  • Allocation reductions on SqlErrorCollection and null-return paths (#​4157, #​4099, #​4102)
  • Improved EnclaveDiffieHellmanInfo.Size accuracy (#​4346)
  • SqlVector<float> serialization is now explicitly little-endian for cross-architecture consistency (#​3861)
  • Bundled .NET 10 SDK updated to 10.0.300 (#​4287)

Fixed

  • NullReferenceException in SqlCommand.Cancel() when the connection has already been torn down (#​4372)
  • Always Encrypted CMK signature verification incorrectly reusing cached results after a prior failure (#​4339)
  • Missing TDS token / feature-ack length bounds checks (spoofing server could trigger unbounded allocations) (#​4340)
  • SqlBulkCopy failing in least-privilege environments (#​4306)
  • Always Encrypted CekMdVersion / EkValueCount reads aligned with the TDS specification (#​4240)
  • LoginWithFailover parser-state validation (#​4140)
  • SPN during login now uses the resolved port instead of instance name for Protocol=None / Protocol=Admin (#​4180)
  • Race in SqlConnection.TryOpenInner that could surface as InvalidCastException now returns a deterministic InvalidOperationException (#​4179)
  • Multiple CancellationTokenSource leaks in SqlDataReader, SqlConnection, SqlCommand reconnect paths, and sequential-stream helpers (#​4009)
  • Docs fix for server certificate configuration (#​4408)

Removed (breaking)

  • SQL Server 7.0 / 2000 code paths removed; Type System Version=SQL Server 2000 now throws ArgumentException at open. Applications should switch to Latest (or another supported value). No change to server-version support — 7.0 / 2000 were already rejected during login version negotiation. (#​4015)

Full details: release-notes/7.1/7.1.0-preview2.md

Microsoft.Data.SqlClient.Extensions.Azure 7.1.0-preview2

Added — WAM (Windows Account Manager) broker support for Entra ID authentication (Windows only) (#​4288, #​4388)

  • Covers ActiveDirectoryIntegrated, ActiveDirectoryInteractive, ActiveDirectoryDeviceCodeFlow, and the deprecated ActiveDirectoryPassword modes.
    ... (truncated)

7.1.0-preview1

This update brings the following changes since the 7.0.0 release:

Added

SqlBatch Support on .NET Framework

What Changed:

  • Added SqlBatch and related batch-command support for the .NET Framework target so the batching API is now available across the full supported platform matrix, including net462. (#​3926)

Who Benefits:

  • Applications that target .NET Framework but also want to use the newer batching APIs no longer need a separate implementation strategy from .NET 8/9 applications.
  • Libraries that multi-target .NET Framework and modern .NET can use a more consistent data-access surface area.

Impact:

  • SqlBatch, SqlBatchCommand, and the related execution methods are now usable on .NET Framework builds in addition to .NET.

Cross-Driver Connection-String Synonym Alignment

What Changed:

  • Added additional accepted connection-string synonyms for better compatibility with other SQL Server drivers and existing connection-string conventions. Newly accepted synonyms include ColumnEncryption, ConnectTimeout, FailoverPartner, PacketSize, and WorkstationId. (#​4192)

Who Benefits:

  • Applications migrating connection strings from other SQL Server drivers or shared infrastructure can reuse more existing keywords without rewriting them first.

Impact:

  • Existing canonical keywords continue to work unchanged; this preview simply accepts more equivalent aliases during parsing.

Changed

Type Forwards for Authentication Abstractions

What Changed:

  • Added type forwards from the core Microsoft.Data.SqlClient assembly to public authentication-related types that were moved into Microsoft.Data.SqlClient.Extensions.Abstractions, including SqlAuthenticationMethod, SqlAuthenticationParameters, SqlAuthenticationProvider, SqlAuthenticationProviderException, and SqlAuthenticationToken. (#​4067, #​4117)

Who Benefits:

  • Applications and libraries compiled against earlier package layouts retain binary compatibility when those authentication types are resolved from the core assembly name.

Impact:

  • No application code changes are required; the type forwards preserve existing compiled references.

User Agent Feature Extension Enabled by Default

... (truncated)

7.0.3

This update brings the following changes since the 7.0.2 release:

The core driver and its companion packages ship together as version 7.0.3. Update the companion packages you use alongside the driver to 7.0.3. Assembly versions remain 7.0.0.0, unchanged from 7.0.2.

Companion package release notes

Changed

  • Updated the Microsoft.Data.SqlClient.SNI and Microsoft.Data.SqlClient.SNI.runtime dependencies to 6.0.3 (was 6.0.2).
    (#​4599)

Fixed

  • Fixed a SqlBulkCopy regression in environments where the application login cannot read sys.all_columns. Bulk copy now falls back to the earlier column-discovery behavior when that permission is unavailable. Support for hidden columns and SQL Graph column aliases still requires access to the metadata view.
    (#​4370, #​4306, #​4402)

  • Fixed a memory-allocation regression in connection and command operations caused by formatting diagnostic strings even when tracing was disabled. Also corrected trace messages that reported an incorrect object ID or could throw FormatException when traced values contained braces.
    (#​4528, #​4533)

  • Fixed ServerCertificate validation on the managed SNI path so the configured certificate is compared against the server certificate even when the server certificate passes chain and host-name validation. When certificate validation is enabled, a missing, unreadable, or invalid certificate file, a certificate mismatch, or a missing server certificate now causes the TLS handshake to fail instead of bypassing the configured certificate check. (net8.0/net9.0 only)
    (#​4445, #​4583)

  • Fixed Always Encrypted VSM/HGS enclave attestation to verify that the enclave public key used to establish a session matches the key committed to by the signed attestation report. Missing, malformed, or mismatched key-binding data now causes attestation to fail before the session secret is derived.
    (#​4532, #​4553)

  • Fixed SqlConnection.AccessTokenCallback not disabling Transparent Network IP Resolution by default, making it consistent with SqlConnection.AccessToken. An explicitly configured TransparentNetworkIPResolution connection-string value still takes precedence. (net462 only)
    (#​4520, #​4561)

  • Fixed authentication state handling so clearing SqlConnection.AccessToken, AccessTokenCallback, or SspiContextProvider preserves the other authentication values in the connection pool key. Cloning a connection or updating its credential also preserves its SspiContextProvider. Combining a non-null SspiContextProvider with AccessToken or AccessTokenCallback now throws InvalidOperationException instead of silently discarding authentication state; applications must use one authentication mechanism at a time.
    (#​4520, #​4561, #​4644)

  • Fixed configurable retry logic installing a permanent, process-wide assembly-resolution handler that could interfere with unrelated assembly loading. The handler is now active only while an explicitly configured custom retry provider is resolved and constructed, and probes AppContext.BaseDirectory instead of the current working directory. Place custom retry assemblies in the application base directory; dependencies loaded after provider construction must be resolvable through normal application dependency resolution or an application-provided handler. (net8.0/net9.0 only)
    (#​2214, #​4547, #​4663)

Contributors

We thank the following public contributors. Their efforts toward this project are very much appreciated.

Target Platform Support

  • .NET Framework 4.6.2+ (Windows x86, Windows x64, Windows ARM64)
  • .NET 8.0+ (Windows x86, Windows x64, Windows ARM, Windows ARM64, Linux, macOS)

... (truncated)

Commits viewable in compare view.

Updated Microsoft.Identity.Client from 4.80.0 to 4.90.0.

Release notes

Sourced from Microsoft.Identity.Client's releases.

4.90.0

Changes

  • Updated the KeyGuardAttestation package version to 1.1.7. #​6189

4.89.0

What's Changed

New Contributors

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.88.0...4.89.0

4.88.0

New Features

  • Added user-assigned managed identity support for Azure Arc, including selecting the identity by client ID and validating the identity returned in the token response. #​6128
  • Added WithRequestOverMtls() to managed identity token requests, enabling attested bearer-token acquisition over the IMDSv2 mTLS transport. #​6086

Bug Fixes

  • Fixed token-cache key collisions by length-prefixing additional cache-key components before hashing. #​6137
  • Populated authentication-result telemetry metadata on proactive background-refresh results. #​6157
  • Fixed mTLS PoP authority validation incorrectly rejecting sovereign-cloud aliases such as login.chinacloudapi.cn and login.usgovcloudapi.net. #​6153

4.87.0

What's Changed

  • Expose MsalServiceException.ErrorCodesForLogging for diagnostics in #​6138
  • Expose WithOtelTagsEnricher for managed identity requests in #​6144
  • Forward OpenTelemetry tags enricher to the client-assertion callback in #​6142
  • Add client-side opaque-token log scrubber in #​6119
  • Populate ExecutionResult.Exception for non-MSAL failures in #​6139
  • Use PSS padding in KeyGuard liveness probe (CodeQL SM03799) in #​6141
  • Remove managed identity support from WithClaimsFromClient (confidential-client only) in #​6113
  • Remove experimental features from client setup in #​6143
  • Update Azure Arc managed identity API version from 2019-11-01 to 2020-06-01 in #​6130

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.86.1...4.87.0

4.86.1

Bug Fixes

  • Fixed the mTLS Proof-of-Possession token cache to key on the certificate's full DER (x5t#S256) instead of only the public key, preventing a stale token (and AADSTS500181) after a same-key certificate renewal. #​6123
  • Fell back to RS256 when a certificate's PSS signing operation is rejected by RSACryptoServiceProvider, rebuilding the client assertion so authentication can proceed. #​6126
  • Detect and reject symbolic links in the Unix cache-file write path (lstat pre-check plus O_NOFOLLOW), closing a TOCTOU window. #​6115
  • Corrected misleading "region required" error messages and doc comments in the mTLS PoP flow. #​6127

4.86.0

What's Changed

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.85.2...4.86.0

4.85.2

What's Changed

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.85.1...4.85.2

4.85.1

What's Changed

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.85.0...4.85.1

4.85.0

What's Changed

New Contributors

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.84.2...4.85.0

4.84.2

New Features

  • Added ManagedIdentityApplication.GetManagedIdentityCapabilitiesAsync(CancellationToken) returning a ManagedIdentityCapabilities object that reports the detected managed identity Source, the host's MaxSupportedBindingStrength (new MtlsBindingStrength enum: None, Software, KeyGuard), and a derived IsMtlsPopSupportedByHost. Replaces GetManagedIdentitySourceAsync()/ManagedIdentitySourceResult. The public ManagedIdentitySource.ImdsV2 value is folded into Imds (v1/v2 routing remains internal). #​6049
  • Added OID-based user identification to the User Federated Identity Credential (user_fic) flow via AcquireTokenByUserFederatedIdentityCredential(scopes, Guid userObjectId, assertion). #​6050
  • Added WithClaimsFromClient(claimsJson) to forward client-originated claims across managed identity and confidential client flows. #​5999
  • Added mTLS PoP support for WithCertificate(() => x509) (dynamic certificate credential). #​5957
  • Added opt-in token-acquisition metrics covering both successful and failed attempts. #​6004

Changes

  • Extended mTLS bearer transport (CertificateOptions.SendCertificateOverMtls) to the OBO, refresh-token, and authorization-code flows. #​6009
  • General Availability of the Microsoft.Identity.Client.KeyAttestation package. #​6038
  • Managed identity now probes IMDSv2 first and the preview latch was removed. #​6041
  • Updated NativeInterop baseline and corrected devapp version ranges. #​6045
  • Simplified GetTenantedAuthority in CiamAuthority and DstsAuthority. #​6001

Bug Fixes

  • Fixed WithExtraQueryParameters on ManagedIdentityApplicationBuilder bypassing token caching. #​6035
  • Guarded HTTP status codes on discovery endpoints in KnownInstanceMetadataIsUpToDateAsync. #​6048
  • Detect orphaned KeyGuard certificates via public-key modulus comparison. #​6020

4.84.1

What's Changed

New Features

  • Added WithReservedScopes and WithCachePartitionKey public API extensions in #​6014
  • Added IAuthenticationOperation3 interface for CDT + mTLS PoP composition in #​5996
  • Added MsalRemainingTokenLifetime histogram metric for token expiry tracking in #​5920

Changes

  • Removed [Obsolete] attribute from WithExtraBodyParameters extension method in #​6006
  • Replaced ConcurrentHashSet with ConcurrentDictionary<T, byte> in #​5975

Bug Fixes

  • Fixed WithTenantId not honoring MSA tenant GUID when specified at request level in #​5958
  • Fixed OBO cache returning multiple_matching_tokens_detected when attributed tokens share a partition in #​5993

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@6ff7075...main (AzureAD/microsoft-authentication-library-for-dotnet@6ff7075...main)

4.84.0

What's Changed

New Features

  • Remove embedded Newtonsoft.Json, migrate to System.Text.Json exclusively in #​5959
  • Expose refresh token via extension and add CacheOptions.DisableInternalCache in #​5947
  • Added support for WithAttributeTokens in #​5888
  • Feature: mTLS Bearer via CertificateOptions.SendCertificateOverMtls in #​5849
  • Remove experimental feature gate from WithClientAssertion(ClientSignedAssertion) overload in #​5945
  • Support forwarding MSAL client metadata headers through IMDS to ESTS in #​5912
  • Add CorrelationId to AssertionRequestOptions for FIC in #​5937
  • Add raw STS error code to MsalFailure metric in #​5961

Bug Fixes

  • Fix: make System.ValueTuple conditional on net462 only in #​5906
  • Fix eager evaluation in ConcurrentDictionary.GetOrAdd calls in #​5950
  • Validate clientSignedAssertionProvider delegate is non-null in WithClientAssertion in #​5956
  • Improve MtlsPopTokenNotSupportedInImdsV1 error message clarity in #​5908
  • Added more checks for issuer validation in #​5931

Improvements

  • Remove region as hard requirement for mTLS PoP flows in #​5902
  • Add in-process MAA token caching to PopKeyAttestor in #​5887
  • Refactor client credential material resolution in #​5835

Dependencies Updates

  • Bump OpenTelemetry version in #​5960

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.83.3...cb59f84 (AzureAD/microsoft-authentication-library-for-dotnet@4.83.3...cb59f84)

4.83.3

New Features

  • Added support for User Federated Identity Credential (UserFIC) scenarios through the IByUserFederatedIdentityCredential interface and user_fic grant type. #​5802

Changes

  • Updated NativeInterop to version 0.20.3. #​5866

Bug Fixes

  • Fixed response handling in HttpListenerInterceptor.cs to ensure the full response is properly closed. #​5478
  • Fixed macOS detection to include maccatalyst target in desktop platform checks.#​5882

Infrastructure & Dependencies

  • Extracted reusable MSAL test infrastructure into Microsoft.Identity.Lab.API. #​5864

4.83.1

Bug Fixes

4.83.0

New Features

  • Agent Skills: Added Agent Skills catalog with complete coverage of both Confidential Client Authentication and mTLS PoP flows #​5733
  • mTLS PoP Skills Guide: Added comprehensive guide for GitHub Copilot Chat covering MSAL.NET authentication, mTLS Proof of Possession, and Federated Identity Credentials #​5790

Changes

  • Credential Guard Attestation: Integrated native DLL handling for Credential Guard attestation with centralized versioning #​5674

Bug Fixes

  • IMDSv2 mTLS Auto-Recovery: Implemented automatic recovery from SCHANNEL handshake failures by evicting cached certificates and re-minting #​5761
  • Managed Identity Fallback Behavior: Restored classic fallback behavior in MSAL MI unless GetManagedIdentitySourceAsync() is explicitly invoked #​5815
  • Attestation Token Expiration: Exposed expires_on field in attestation tokens for better token lifecycle management #​5741
  • Service Fabric API Version: Updated Service Fabric managed identity API version from 2019-07-01-preview to 2020-05-01 #​5781
  • Cached Token Validation: Enhanced ValidateCachedTokenAsync to work properly with multiple APIs beyond the initial scope #​5764
  • Client Credentials Tenant ID: Updated result to properly pass tenant ID in client credentials flow #​5754
  • Experimental Flag Removal: Removed experimental flag requirement from IAuthenticationOperation and WithAuthenticationExtension #​5699
  • OpenTelemetry Exception Handling: Expanded OTel exception handling for Azure Functions compatibility #​5720
  • ICustomWebUi Security Warning: Added security warnings to ICustomWebUi documentation #​5704

Infrastructure & Dependencies

  • GitHub Actions Workflow: Added GitHub Actions workflow for Managed Identity WebAPI automated build and deployment to Azure #​5751
  • .NET SDK Security Update: Updated .NET SDK from version 8.0.415 to 8.0.418 to address high severity security vulnerabilities #​5779 #​5783

4.82.1

Bug Fixes

  • Remove experimental flag requirement from IAuthenticationOperation #​5699
  • Add security warning to ICustomWebUi documentation #​5704

Changes

  • Adds support for implicit mTLS (Mutual TLS) transport for client assertion delegates #​5670

4.82.0

4.82.0

Highlights

This release expands extensibility for confidential-client authentication (certificates + client assertions), adds additional sovereign cloud environments, and hardens security-sensitive flows (mTLS PoP and system browser auth) with clearer validation and safer defaults.

Features

  • Certificate-based confidential client extensibility: Introduced CertificateOptions and updated WithCertificate extensibility APIs to accept it, including support for passing sendX5C configuration through the options model. (#​5655)
  • Sovereign cloud support: Added instance discovery / authority validation support for Bleu (France), Delos (Germany), and GovSG (Singapore) cloud environments. (#​5671)
  • Client assertion customization: Added WithExtraClientAssertionClaims on AcquireTokenForClientParameterBuilder to enable supplying additional signed claims in client assertions (intended for advanced scenarios and higher-level libraries). (#​5650)
  • mTLS PoP guardrails: Added validation and explicit error handling when mTLS PoP is requested for unsupported environments and/or non-login.* hosts. (#​5684)
  • System browser hardening: Added response_mode=form_post support for the default system browser (loopback) flow. MSAL will enforce form_post and process the authorization response from POST data. (#​5678)

Changes

  • Key Attestation packaging rename: Microsoft.Identity.Client.MtlsPop renamed to Microsoft.Identity.Client.KeyAttestation (assembly/package naming update). (#​5653)

4.81.0

What's Changed

Full Changelog: AzureAD/microsoft-authentication-library-for-dotnet@4.80.0...4.81.0

Commits viewable in compare view.

Updated Microsoft.NET.Test.Sdk from 17.14.1 to 18.10.1.

Release notes

Sourced from Microsoft.NET.Test.Sdk's releases.

18.10.1

What's Changed

Full Changelog: microsoft/vstest@v18.10.0...v18.10.1

18.10.0

What's Changed

Full Changelog: microsoft/vstest@v18.9.0...v18.10.0

18.9.0

What's Changed

Description has been truncated

@dependabot
Bump the nuget group with 7 updates
b8dfffb 
Bumps coverlet.collector from 6.0.4 to 10.0.1
Bumps FluentAssertions from 8.10.0 to 8.11.0
Bumps Microsoft.Data.SqlClient from 7.0.2 to 7.1.0
Bumps Microsoft.Identity.Client from 4.80.0 to 4.90.0
Bumps Microsoft.NET.Test.Sdk from 17.14.1 to 18.10.1
Bumps Microsoft.SqlServer.DacFx from 170.4.83 to 170.5.96
Bumps xunit.runner.visualstudio from 3.1.4 to 4.0.0

---
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  dependency-group: nuget
- dependency-name: Microsoft.NET.Test.Sdk
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  dependency-group: nuget
- dependency-name: Microsoft.NET.Test.Sdk
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  update-type: version-update:semver-major
  dependency-group: nuget
- dependency-name: Microsoft.SqlServer.DacFx
  dependency-version: 170.5.96
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  dependency-group: nuget
- dependency-name: Microsoft.SqlServer.DacFx
  dependency-version: 170.5.96
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget
- dependency-name: xunit.runner.visualstudio
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: nuget
- dependency-name: xunit.runner.visualstudio
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  dependency-group: nuget
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added .NET Pull requests that update .NET code dependencies Pull requests that update a dependency file labels Sep 24, 2026
@dependabot dependabot Bot mentioned this pull request Sep 24, 2026
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