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vpython-1.12.1 scope: python Security

This release includes 1 security fix for security teams reviewing exposed deployments.

Published 4d AI Agents & Assistants
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →
This release patches 1 known CVE

Topics

agent-framework agentic-ai agents ai .net multi-agent
+4 more
orchestration python sdk workflows

Summary

AI summary

Preserve Gemini 3 thought signatures across function‑call replays and add explicit prompt cache breakpoints for GPT-5.6 models.

Full changelog

[1.12.1] - 2026-07-22

Added

  • agent-framework-openai: Add explicit prompt cache breakpoints for GPT-5.6 models and a usage sample (#7163)

Changed

  • agent-framework-ag-ui: Promote the package from release candidate to stable
  • agent-framework-core: Add security guidance for custom MCP Streamable HTTP clients (#7245)

Fixed

  • agent-framework-gemini: Preserve Gemini 3 thought signatures across function-call replays (#7095)
  • agent-framework-core, agent-framework-foundry, agent-framework-foundry-hosting, agent-framework-openai: Fix stateless replay of reasoning-paired tool calls (#7233)

Full Changelog: https://github.com/microsoft/agent-framework/compare/python-1.12.0...python-1.12.1

Security Fixes

  • agent-framework-core: added security guidance for custom MCP Streamable HTTP clients
View diff on GitHub

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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

Earlier breaking changes

  • vpython-1.8.0 [BREAKING — experimental] Refactor Skill API to async resource and script lookup
  • vpython-1.8.0 [BREAKING] Upgrade github-copilot-sdk to v1.0.0 (stable)
  • 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.

Beta — feedback welcome: [email protected]