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nuget-rest-tests: Bump Microsoft.Identity.Client from 4.81.0 to 4.82.1#194

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nuget-rest-tests: Bump Microsoft.Identity.Client from 4.81.0 to 4.82.1#194
dependabot[bot] wants to merge 1 commit intomainfrom
dependabot/nuget/client-samples/dotnet/rest/api-template/Microsoft.Identity.Client-4.82.1

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@dependabot dependabot bot commented on behalf of github Feb 20, 2026

Updated Microsoft.Identity.Client from 4.81.0 to 4.82.1.

Release notes

Sourced from Microsoft.Identity.Client's releases.

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)

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---
updated-dependencies:
- dependency-name: Microsoft.Identity.Client
  dependency-version: 4.82.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 Feb 20, 2026
@dependabot dependabot bot requested a review from a team as a code owner February 20, 2026 22:42
@dependabot dependabot bot added dependencies Pull requests that update a dependency file .NET Pull requests that update .NET code labels Feb 20, 2026
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