v2.1.0a1

v2.1.0a1 is the first 2.1 alpha, introducing Agent 365 identity, lifecycle, proactive messaging, and observability support. It includes the shared 2.0 maintenance baseline documented in v2.0.15; those changes are not repeated here.

Alpha: This prerelease is intended for evaluation and early integration. APIs may change before the stable 2.1 release.

Highlights

• Added Agent 365 token acquisition and inbound Entra Agent ID token validation (#457, #462) — Aamir Jawaid (@heyitsaamir).
• Added scoped Agent 365 API access plus app-level reactive and proactive send helpers (#478, #480, #505, #533) — Aamir Jawaid (@heyitsaamir).
• Added typed Agent 365 lifecycle events and app handlers (#492) — Aamir Jawaid (@heyitsaamir).
• Added OpenTelemetry diagnostics spanning inbound activities, handlers, outbound API calls, authentication, and Agent 365 context (#514, #515, #530, #516) — Aamir Jawaid (@heyitsaamir).

Changes

Agent 365 identity and authentication

• Added the agentic authentication-provider foundation (#485) and the Agent 365 API identity surface (#478) — Aamir Jawaid (@heyitsaamir).
• Standardized SDK-facing names around AgenticUser, AgenticAppInstance, and AgenticBlueprint while retaining service wire compatibility (#524) — Aamir Jawaid (@heyitsaamir).
• Standardized AgenticIdentity as the operation scope for requests, proactive sends, and scoped API clients (#533) — Aamir Jawaid (@heyitsaamir).

Messaging and lifecycle

• Unified activity sending through the API client while preserving create, update, targeted-send, and reply behavior (#479) — Aamir Jawaid (@heyitsaamir).
• Added app-level Agent 365 reactive and proactive send helpers (#480) — Aamir Jawaid (@heyitsaamir).
• Added typed agentLifecycle activity models, parsing, routing, and per-variant handlers (#492) — Aamir Jawaid (@heyitsaamir).
• Removed stale streamSequence data from final streamed messages (#539) — Corina (@corinagum).

Diagnostics and release reliability

• Added outbound API/auth spans and inbound activity/handler telemetry (#514, #515) — Aamir Jawaid (@heyitsaamir).
• Added the SDK token-provider surface and Agent 365 baggage bridge for reactive and proactive telemetry context (#530, #516) — Aamir Jawaid (@heyitsaamir).
• Hardened alpha publication with the NBGV setup fix (#540), Windows UTF-8 diagnostics port (#542, originating in #541), and locked publish dependencies (#544, originating in #543) — Aamir Jawaid (@heyitsaamir).

The Agent 365 work was integrated through #464 — Aamir Jawaid (@heyitsaamir).

Install

pip install --pre --upgrade "microsoft-teams-apps==2.1.0a1"