- Introduced AuthorityAdvisoryAiOptions and related classes for managing advisory AI configurations, including remote inference options and tenant-specific settings. - Added AuthorityApiLifecycleOptions to control API lifecycle settings, including legacy OAuth endpoint configurations. - Implemented validation and normalization methods for both advisory AI and API lifecycle options to ensure proper configuration. - Created AuthorityNotificationsOptions and its related classes for managing notification settings, including ack tokens, webhooks, and escalation options. - Developed IssuerDirectoryClient and related models for interacting with the issuer directory service, including caching mechanisms and HTTP client configurations. - Added support for dependency injection through ServiceCollectionExtensions for the Issuer Directory Client. - Updated project file to include necessary package references for the new Issuer Directory Client library.
		
			
				
	
	
	
		
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Legacy Authority Authentication Endpoints — Deprecation Guidance
Announced: 1 November 2025
Sunset (removal no earlier than): 1 May 2026
Summary
StellaOps Authority previously exposed OAuth 2.1 endpoints at /oauth/token, /oauth/revoke, and /oauth/introspect to ease migration from early previews. Those aliases are now deprecated in favour of the canonical paths (/token, /revoke, /introspect). All responses from the legacy routes include:
Deprecation— RFC 7231 HTTP-date set to 1 November 2025.Sunset— HTTP-date advertising the planned removal on 1 May 2026.Warning— RFC 7234299warning describing the migration requirement.Link—rel="sunset"URI pointing back to this guidance.
No new features (DPoP nonces, audit upgrades, policy scopes) will ship on the legacy routes. After 1 May 2026 the aliases will return 410 Gone and be removed in the next major release.
Required Actions
- Service identities / CI pipelines – Update token, revocation, and introspection calls to target the canonical 
/token,/revoke, and/introspectendpoints. Regenerate OpenAPI clients if they relied on the deprecated paths. - Gateway / proxy rules – Remove explicit rewrites that target 
/oauth/*so traffic flows directly to the canonical paths. - Custom SDKs – Regenerate against the refreshed Authority OpenAPI spec (
/.well-known/openapi) which marks legacy operations asdeprecated: true. - Monitoring – Alert on the 
authority.api.legacy_endpointaudit event or the299Warning header to verify migrations are complete. 
Timeline & Support
| Date | Milestone | 
|---|---|
| 1 Nov 2025 | Deprecation headers emitted, documentation published | 
| Jan–Apr 2026 | Observability dashboards highlight remaining usage; support assists with migrations | 
| 1 May 2026 | Legacy routes return HTTP 410 and will be removed in the next major release | 
Questions? Contact the Authority Core guild or open a ticket with the API Governance Guild referencing AUTH-OAS-63-001.