Azure/azure-sdk-for-net Azure.AI.AgentServer.Core_1.0.0-beta.23

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1.0.0-beta.23 (2026-04-22)

Features Added

• Added PlatformHeaders static class centralizing all platform HTTP header name constants
  (x-request-id, x-platform-server, x-agent-session-id, isolation keys, traceparent,
  x-ms-client-request-id). All AgentServer packages now reference these shared constants
  instead of declaring private duplicates.
• Added RequestIdMiddleware that sets the x-request-id response header on every HTTP response.
  Value is resolved in priority order: OTEL trace ID → incoming x-request-id header → new GUID.
  Registered automatically by AgentHostBuilder and by AddAgentServerCore() for
  standalone (Tier 3) setups.
• Added RequestIdBaggagePropagator middleware that propagates incoming x-request-id header
  values into Activity.Baggage for end-to-end distributed tracing correlation.

Breaking Changes

• Removed IsolationContext.UserIsolationKeyHeaderName and IsolationContext.ChatIsolationKeyHeaderName
  — use PlatformHeaders.UserIsolationKey and PlatformHeaders.ChatIsolationKey instead.
• Replaced AddAgentServerRequestId(), AddAgentServerVersion(), AddAgentServerLogging(),
  UseAgentServerRequestId(), UseAgentServerVersion(), and UseAgentServerLogging() with a
  single AddAgentServerCore() / UseAgentServerCore() pair. Tier 3 standalone setups now use
  two calls instead of six.