0.13.10

microsoft/agent-host-protocol0.13.10Sep 4, 2026by MagMueller

Upgrading?

AI Summary

This release upgrades the Browser Harness, migrates to the MCP Python SDK 2.1.1, and updates pypdf to resolve security advisories.

Key Highlights

  • Upgrade Browser Harness to 0.1.13
  • Migrate to MCP Python SDK 2.1.1
  • Upgrade pypdf to 6.16.2
  • Fix unknown MCP tool call reporting

New Features

  • MCP Python SDK 2.1.1
  • pypdf 6.16.2

Full Release Notes

## Browser Use 0.13.10

- Upgrade Browser Harness to 0.1.13.
- Exact-pin all declared runtime, optional, development, and build dependencies.
- Upgrade and migrate to MCP Python SDK 2.1.1.
- Add pydantic-settings 2.15.0 as an explicit runtime dependency.
- Pin Pydantic 2.13.5 and Hatchling 1.32.0.
- Upgrade pypdf to 6.16.2, resolving the three current pypdf Dependabot advisories.
- Report unknown MCP tool calls as application errors instead of successful results.

Validation includes the full GitHub test matrix, model adapters, MCP stdio handshakes, cross-platform wheel installation, focused PDF tests, CodeQL, GitGuardian, and an installed-runtime vulnerability audit.

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