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Changelog — microsoft-agents-a365-observability-hosting

All notable changes to this package will be documented in this file.

[2.0.0] - 2026-10-20

Breaking Changes

  • Hosting OBS token cache requires an app-only resolver — refresh_observability_token(agent_id, tenant_id, token_resolver) acquires and caches app-only OBS tokens for export. The resolver receives the configured OBS scopes and must acquire a token for the exporting agent identity, not its blueprint or the workload's user. Acquisition failures propagate to the caller; empty tokens fail refresh and clear stale cache state.
  • get_observability_token(...) no longer exchanges tokens — It returns the cached app-only token acquired by refresh_observability_token, or None.
  • Delegated OBS registration is a no-op — register_observability(...) logs one error and stores no token. It never calls Authorization.exchange_token and never acquires a delegated OBS token.

Changed

  • The package now declares a direct dependency on microsoft-agents-a365-runtime.

Fixed

  • Channel scope helpers now fall back to channel_data.productContext for the sub-channel when the activity's ChannelId does not carry one.

Migration

  • Call and return refresh_observability_token(agent_id, tenant_id, app_only_token_resolver) from the exporter token_resolver.
  • Keep workload MCP/Graph/OBO authentication unchanged; only OBS export authentication moves to app-only S2S.

[1.0.0] - 2026-05-01

Changed

  • OutputLoggingMiddleware — Updated to use new scope APIs (Request, SpanDetails, UserDetails). Removed TenantDetails and ExecutionType dependencies. Middleware no longer gates on tenant presence.
  • scope_helpers/utils.py — Removed get_execution_type_pair().
  • populate_baggage.py / populate_invoke_agent_scope.py — Removed execution type population.