Azure/azure-sdk-for-net Azure.AI.AgentServer.Core_1.0.0-beta.24

on GitHub

1.0.0-beta.24 (2026-05-21)

Features Added

• Added Agent365 tracing export support with managed identity token acquisition when FOUNDRY_AGENT365_TRACING_ENABLED is set.
• Added AgentInstanceClientId, AgentBlueprintClientId, AgentTenantId, and IsAgent365TracingEnabled properties to FoundryEnvironment.
• Added FoundryEnrichmentProcessor attributes: gen_ai.agent.blueprint.id, microsoft.tenant.id, and microsoft.foundry.agent.type on telemetry spans.
• Added W3CBaggagePropagator middleware that parses the W3C baggage header into Activity.Baggage on all target frameworks (net8.0, net9.0, net10.0).
• Configured W3C Trace Context and Baggage propagators via Sdk.SetDefaultTextMapPropagator for outgoing request propagation.
• Added conditional exporter registration: Azure Monitor, OTLP, and Agent365 exporters activate only when their respective environment variables are set.
• Added PlatformHeaders.ErrorSource (x-platform-error-source), PlatformHeaders.ErrorDetail
  (x-platform-error-detail), and error source value constants (ErrorSourceUser,
  ErrorSourcePlatform, ErrorSourceUpstream) for error classification per container-image-spec §8.
• Replaced Azure.Monitor.OpenTelemetry.AspNetCore with the unified Microsoft.OpenTelemetry distro for telemetry. The new distro auto-detects Azure Monitor and OTLP exporters from environment variables and eliminates the need for duplicate-instrumentation guards.
• Added FoundryEnvironment.WebSocketKeepAliveInterval (sourced from the
  WS_KEEPALIVE_INTERVAL environment variable) for the new
  invocations_ws (WebSocket) protocol. Wired through
  AgentHostMiddlewareExtensions.UseAgentServerCore into Kestrel's
  WebSocketOptions.KeepAliveInterval, so a positive value emits RFC 6455
  protocol-level Ping frames (opcode 0x9) that keep idle WebSocket
  connections alive across upstream proxy / load-balancer idle timeouts.
  Disabled by default (Timeout.InfiniteTimeSpan).
• UseAgentServerCore now also calls IApplicationBuilder.UseWebSockets,
  so any protocol library that hosts WebSocket endpoints (e.g., the
  Invocations /invocations_ws endpoint) works out of the box without
  the consumer having to wire UseWebSockets themselves.