Azure/azure-sdk-for-net Azure.Core_1.60.0

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1.60.0 (2026-06-30)

Features Added

• Added experimental (AZID0004) DisableMtlsProofOfPossession property to ManagedIdentityCredentialOptions to allow explicit opt-out of mTLS proof-of-possession token acquisition when the underlying requirements are met.
• Simplified mTLS token binding integration for Managed Identity by moving to an optional, runtime-resolved attestation model using lazy reflection-based resolution of the Microsoft.Identity.Client.KeyAttestation extension package.

Bugs Fixed

• Fixed a regression (introduced with managed identity host capability detection) where DefaultAzureCredential could throw an AuthenticationFailedException and stop evaluating the credential chain on hosts without a managed identity — for example, a developer machine running in Visual Studio where the IMDS endpoint (169.254.169.254) is unreachable. When ManagedIdentityCredential is part of a chain, a failure to detect the managed identity source/capabilities is now surfaced as a CredentialUnavailableException, allowing the chain to continue to the next credential.