python-1.0.0rc6

[1.0.0rc6] - 2026-03-30

Important

For any breaking changes & updates, please view this migration guide.

Added

• agent-framework-openai: New package extracted from core for OpenAI and Azure OpenAI provider support (#4818)
• agent-framework-foundry: New package for Azure AI Foundry integration (#4818)
• agent-framework-core: Support structuredContent in MCP tool results and fix sampling options type (#4763)
• agent-framework-core: Include reasoning messages in MESSAGES_SNAPSHOT events (#4844)
• agent-framework-core: [BREAKING] Add context mode to AgentExecutor (#4668)

Changed

• agent-framework-core: [BREAKING] Remove deprecated kwargs compatibility paths (#4858)
• agent-framework-core: [BREAKING] Reduce core dependencies and simplify optional integrations (#4904)
• agent-framework-openai: [BREAKING] Provider-leading client design & OpenAI package extraction (#4818)
• agent-framework-openai: [BREAKING] Fix OpenAI Azure routing and provider samples (#4925)
• agent-framework-azure-ai: Deprecate Azure AI v1 (Persistent Agents API) helper methods (#4804)
• agent-framework-core: Avoid duplicate agent response telemetry (#4685)
• agent-framework-devui: Bump flatted from 3.3.3 to 3.4.2 in frontend (#4805)
• samples: Move ag_ui_workflow_handoff demo from demos/ to 05-end-to-end/ (#4900)

Fixed

• agent-framework-core: Fix streaming path to emit mcp_server_tool_result on output_item.done instead of output_item.added (#4821)
• agent-framework-a2a: Fix A2AAgent to surface message content from in-progress TaskStatusUpdateEvents (#4798)
• agent-framework-core: Fix PydanticSchemaGenerationError when using from __future__ import annotations with @tool (#4822)
• samples: Fix broken samples for GitHub Copilot, declarative, and Responses API (#4915)
• repo: Fix: update PyRIT repository link from Azure/PyRIT to microsoft/PyRIT (#4960)