agent-framework

vpython-1.7.0 scope: python Breaking

This release includes 1 breaking change for platform teams planning a safe upgrade.

Published 6d AI Agents & Assistants

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Topics

agent-framework agentic-ai agents ai .net multi-agent

+4 more

orchestration python sdk workflows

Affected surfaces

deps breaking_upgrade

ReleasePort's take

Light signal

editorial:auto 6d

Python‑only declarative actions are removed and alias kinds renamed to C# canonical names in agent‑framework‑declarative.

Why it matters: Affects users of the Python API surface; requires code updates before upgrading to version 1.7.0.

Summary

AI summary

Updates 1.7.0] - 2026-05-28, https://github.com/microsoft/agent-framework/pull/6069, and https://github.com/microsoft/agent-framework/pull/6041 across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Breaking	High	Remove Python-only declarative actions and rename alias kinds to C# canonical names in agent-framework-declarative. Remove Python-only declarative actions and rename alias kinds to C# canonical names in agent-framework-declarative. Source: llm_adapter@2026-05-28 Confidence: high	—
Feature
Feature	Low	Add HarnessAgent and background‑agents harness provider to agent-framework-core. Add HarnessAgent and background‑agents harness provider to agent-framework-core. Source: llm_adapter@2026-05-28 Confidence: high	—
Feature	Low	Add A2AAgentSession with referenced task IDs and input‑required support to agent-framework-core and agent-framework-a2a. Add A2AAgentSession with referenced task IDs and input‑required support to agent-framework-core and agent-framework-a2a. Source: llm_adapter@2026-05-28 Confidence: high	—
Feature	Low	Add experimental prompt‑agent conversion and deployment APIs to agent-framework-foundry. Add experimental prompt‑agent conversion and deployment APIs to agent-framework-foundry. Source: llm_adapter@2026-05-28 Confidence: high	—
Feature	Low	Add Foundry Toolbox MCP invocation support and sample to agent-framework-declarative. Add Foundry Toolbox MCP invocation support and sample to agent-framework-declarative. Source: llm_adapter@2026-05-28 Confidence: high	—
Feature	Low	Add hosting samples overview README. Add hosting samples overview README. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Dependency	Medium	Raise the openai-chatkit dependency floor to >=1.6.4 in agent-framework-chatkit. Raise the openai-chatkit dependency floor to >=1.6.4 in agent-framework-chatkit. Source: llm_adapter@2026-05-28 Confidence: high	—
Bugfix
Bugfix	Medium	Fix streaming memory growth regression in agent-framework-devui. Fix streaming memory growth regression in agent-framework-devui. Source: llm_adapter@2026-05-28 Confidence: high	—
Bugfix	Medium	Fix Foreach body exit wiring in agent-framework-declarative. Fix Foreach body exit wiring in agent-framework-declarative. Source: llm_adapter@2026-05-28 Confidence: high	—
Bugfix	Medium	Pass default headers to Foundry agents in agent-framework-foundry. Pass default headers to Foundry agents in agent-framework-foundry. Source: llm_adapter@2026-05-28 Confidence: high	—
Bugfix	Medium	Fix hosted handoff argument serialization in agent-framework-foundry-hosting. Fix hosted handoff argument serialization in agent-framework-foundry-hosting. Source: llm_adapter@2026-05-28 Confidence: high	—
Bugfix	Low	Allow hosted checkpoints to restore MessageRole values in agent-framework-foundry-hosting. Allow hosted checkpoints to restore MessageRole values in agent-framework-foundry-hosting. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Bugfix	Low	Preserve citation get_url metadata in agent-framework-openai. Preserve citation get_url metadata in agent-framework-openai. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Bugfix	Low	Guard Chat Completions streaming against null deltas in agent-framework-openai. Guard Chat Completions streaming against null deltas in agent-framework-openai. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Bugfix	Low	Read response headers defensively for stream wrappers without .headers in agent-framework-openai. Read response headers defensively for stream wrappers without .headers in agent-framework-openai. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Bugfix	Low	Point @experimental warnings at user code in agent-framework-core. Point @experimental warnings at user code in agent-framework-core. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Refactor	Low	Align TodoProvider tool names with the C# implementation in agent-framework-core. Align TodoProvider tool names with the C# implementation in agent-framework-core. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—
Refactor	Low	Align ModeProvider tool names and instructions in agent-framework-core. Align ModeProvider tool names and instructions in agent-framework-core. Source: granite4.1:30b@2026-05-28-audit Confidence: low	—

Full changelog

[1.7.0] - 2026-05-28

Added

agent-framework-core: Add HarnessAgent and background-agents harness provider (#6041, #6069)
agent-framework-core, agent-framework-a2a: Add A2AAgentSession with referenced task IDs and input-required support (#5980)
agent-framework-foundry: Add experimental prompt-agent conversion and deployment APIs (#5959)
agent-framework-declarative: Add Foundry Toolbox MCP invocation support and sample (#5933)
samples: Add hosting samples overview README (#5407)

Changed

agent-framework-core: Align TodoProvider tool names with the C# implementation (#6107)
agent-framework-core: Align ModeProvider tool names and instructions (#6071)
agent-framework-chatkit: Raise the openai-chatkit dependency floor to >=1.6.4 to match the current typed API usage.
agent-framework-declarative: [BREAKING] Remove Python-only declarative actions and rename alias kinds to C# canonical names (#6126)
tests: Replace deprecated asyncio.iscoroutinefunction usage in DevUI cleanup-hook tests (#4563)

Fixed

agent-framework-core: Point @experimental warnings at user code (#5996)
agent-framework-declarative: Fix Foreach body exit wiring (#6050)
agent-framework-devui: Fix streaming memory growth regression (#6038)
agent-framework-foundry: Pass default headers to Foundry agents (#6040)
agent-framework-foundry-hosting: Fix hosted handoff argument serialization (#5861)
agent-framework-foundry-hosting: Allow hosted checkpoints to restore MessageRole values (#6049)
agent-framework-openai: Preserve citation get_url metadata (#6037)
agent-framework-openai: Guard Chat Completions streaming against null deltas (#5734)
agent-framework-openai: Read response headers defensively for stream wrappers without .headers (#6028, #6029)
samples: Fix sequential workflow sample output handling (#5976)

Full Changelog: https://github.com/microsoft/agent-framework/compare/python-1.6.0...python-1.7.0

Breaking Changes

[BREAKING] Remove Python-only declarative actions and rename alias kinds to C# canonical names

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About agent-framework

A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

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Related context

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Earlier breaking changes

vdotnet-1.9.0 Removes [Experimental] tag from .NET Orchestrations, marking them stable.
vpython-1.6.0 Enable instrumentation by default in agent-framework-core and agent-framework-foundry.
vpython-1.4.0 Migrate to a2a-sdk v1.0 in agent-framework-a2a
vpython-1.4.0 Tighten default access controls and CORS posture in agent-framework-devui
vpython-1.4.0 Extract skill spec metadata into SkillFrontmatter in agent-framework-core