agent-framework

vpython-1.8.0 scope: python Breaking

This release includes 2 breaking changes for platform teams planning a safe upgrade.

Published 1mo AI Agents & Assistants

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

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orchestration python sdk workflows

ReleasePort's take

Light signal

editorial:auto 1mo

Upgrade github‑copilot‑sdk to v1.0.0 (stable) and refactor the Skill API to async resource lookup.

Why it matters: The upgrade removes experimental status for the SDK, requiring immediate migration; refactoring the Skill API changes its usage pattern, affecting code that relies on synchronous lookups.

Summary

AI summary

BREAKING: Upgrade github‑copilot‑sdk to v1.0.0 (stable) and refactor Skill API to async resource lookup.

Changes in this release

Type	Severity	Summary	CVE
Breaking	High	[BREAKING] Upgrade github-copilot-sdk to v1.0.0 (stable) [BREAKING] Upgrade github-copilot-sdk to v1.0.0 (stable) Source: llm_adapter@2026-06-05 Confidence: high	—
Breaking	High	[BREAKING — experimental] Refactor Skill API to async resource and script lookup [BREAKING — experimental] Refactor Skill API to async resource and script lookup Source: llm_adapter@2026-06-05 Confidence: high	—
Feature
Feature	Medium	Add MCP-based skills discovery (`McpSkillsSource`) to agent-framework-core Add MCP-based skills discovery (`McpSkillsSource`) to agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Medium	Add progressive tool exposure via `FunctionInvocationContext` to agent-framework-core Add progressive tool exposure via `FunctionInvocationContext` to agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Medium	Add background agent support to harness agent in agent-framework-core Add background agent support to harness agent in agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Medium	Add `AgentFileStore` and `FileAccessProvider` for file access operations in agent-framework-core Add `AgentFileStore` and `FileAccessProvider` for file access operations in agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Medium	Add `timeout` parameter to `FoundryAgent` to fix ConnectTimeout on multi‑turn conversations in agent-framework-foundry Add `timeout` parameter to `FoundryAgent` to fix ConnectTimeout on multi‑turn conversations in agent-framework-foundry Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Low	Implement native structured output support via Converse API in agent-framework-bedrock Implement native structured output support via Converse API in agent-framework-bedrock Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Feature	Low	Add Foundry Adaptive Evals integration for rubric-generation in agent-framework-foundry Add Foundry Adaptive Evals integration for rubric-generation in agent-framework-foundry Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Feature	Low	Persist hosted MCP call/results as canonical `mcp_call` output in agent-framework-foundry-hosting Persist hosted MCP call/results as canonical `mcp_call` output in agent-framework-foundry-hosting Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Feature	Low	Add Mistral AI embedding client package to agent-framework-mistral Add Mistral AI embedding client package to agent-framework-mistral Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Feature	Low	Expose `supported_protocol_bindings` as configurable parameter in agent-framework-a2a Expose `supported_protocol_bindings` as configurable parameter in agent-framework-a2a Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Feature	Low	Set `message_id` on `AgentResponseUpdate` for message-bearing paths in agent-framework-a2a Set `message_id` on `AgentResponseUpdate` for message-bearing paths in agent-framework-a2a Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Bugfix
Bugfix	Medium	Fix compaction message-id collisions and tool-loop summary persistence in agent-framework-core Fix compaction message-id collisions and tool-loop summary persistence in agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Fix observability unsafe serialization of function-call arguments containing dataclass/framework objects in agent-framework-core Fix observability unsafe serialization of function-call arguments containing dataclass/framework objects in agent-framework-core Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Fix `FoundryAgent` stripping model from `PromptAgent` requests in agent-framework-foundry Fix `FoundryAgent` stripping model from `PromptAgent` requests in agent-framework-foundry Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Low	Fix toolbox consent flow in hosted agent in agent-framework-foundry-hosting Fix toolbox consent flow in hosted agent in agent-framework-foundry-hosting Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Bugfix	Low	Fix OTLP HTTP base-endpoint losing `/v1/{signal}` auto-append in agent-framework-openai Fix OTLP HTTP base-endpoint losing `/v1/{signal}` auto-append in agent-framework-openai Source: granite4.1:30b@2026-06-05-audit Confidence: low	—
Bugfix	Low	Fix integration test worker crashes on Py3.13 in agent-framework-azurefunctions Fix integration test worker crashes on Py3.13 in agent-framework-azurefunctions Source: granite4.1:30b@2026-06-05-audit Confidence: low	—

Full changelog

[1.8.0] - 2026-06-04

Added

agent-framework-core: Add MCP-based skills discovery (McpSkillsSource) (#6169)
agent-framework-core: Progressive tool exposure via FunctionInvocationContext (#6233)
agent-framework-core: Add background agent support to harness agent (#6155)
agent-framework-core: Add AgentFileStore and FileAccessProvider for file access operations (#6099)
agent-framework-core: Coalesce code interpreter history chunks (#5801)
agent-framework-core: Run sync tools off the event loop (#5773)
agent-framework-bedrock: Implement native structured output support via Converse API (#6052)
agent-framework-foundry: Add Foundry Adaptive Evals integration for rubric-generation (#6101)
agent-framework-foundry: Add timeout parameter to FoundryAgent to fix ConnectTimeout on multi-turn conversations (#6263)
agent-framework-mistral: Add Mistral AI embedding client package (#5480)
agent-framework-a2a: Expose supported_protocol_bindings as configurable parameter (#6098)
agent-framework-a2a: Set message_id on AgentResponseUpdate for message-bearing paths (#6163)
agent-framework-foundry-hosting: Persist hosted MCP call/results as canonical mcp_call output (#6070)

Changed

agent-framework-github-copilot: [BREAKING] Upgrade github-copilot-sdk to v1.0.0 (stable) (#6292)
agent-framework-core: [BREAKING — experimental] Refactor Skill API to async resource and script lookup (#6135)
agent-framework-github-copilot: Promote to release candidate (1.0.0rc1)
agent-framework-declarative: Promote to release candidate (1.0.0rc1) (#6256)

Fixed

agent-framework-core: Fix compaction message-id collisions and tool-loop summary persistence (#6299)
agent-framework-core: Fix observability unsafe serialization of function-call arguments containing dataclass/framework objects (#6026)
agent-framework-core: Consolidate MCP reliability fixes (#6145)
agent-framework-core: Backfill chat span request model if unknown and response model is available (#6160)
agent-framework-anthropic: Skip orphan anthropic thinking signatures (#5784)
agent-framework-foundry: Fix FoundryAgent stripping model from PromptAgent requests (#5526)
agent-framework-foundry-hosting: Fix toolbox consent flow in hosted agent (#6249)
agent-framework-foundry-hosting: Drop hosted MCP calls when reasoning is stripped (#6210)
agent-framework-openai: Fix OTLP HTTP base-endpoint losing /v1/{signal} auto-append (#5913)
agent-framework-openai: Drop hosted MCP calls when reasoning is stripped (#6210)
agent-framework-orchestrations: Fix spurious Magentic custom manager warning (#6261)
agent-framework-azurefunctions: Fix integration test worker crashes on Py3.13 (#4260)

Breaking Changes

Upgrade github‑copilot‑sdk to version 1.0.0 (stable) – requires migration.
[BREAKING — experimental] Refactor Skill API to async resource and script lookup.

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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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Earlier breaking changes

vdotnet-1.9.0 Removes [Experimental] tag from .NET Orchestrations, marking them stable.
vpython-1.7.0 Remove Python-only declarative actions and rename alias kinds to C# canonical names in agent-framework-declarative.
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