{"version":"2.1.121","anchor":"google-auth-library-upgrade","canonical_anchor":"google-auth-library-upgrade","heading":"Google Auth Library Upgrade","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.121\/e\/google-auth-library-upgrade","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.121","markdown":"### Google Auth Library Upgrade\n\nThe bundled `gaxios` library upgraded from 6.7.1 to 7.1.4, and `google-auth-library` was updated with:\n\n- New `CertificateSubjectTokenSupplier` for mTLS workload identity federation\n- New `ExternalAccountAuthorizedUserClient` credential type\n- Certificate-based identity pool credential source (alongside existing file\/url types)\n- `GOOGLE_API_CERTIFICATE_CONFIG` environment variable for certificate discovery\n- Improved error messages for certificate parsing failures\n\n**Evidence**\n\nGaxios upgrade (search for `\"gaxios\"`, version `\"7.1.4\"`, `\"certificate_config.json\"`)"}