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CHANGELOG.md

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Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[Unreleased]

[0.3.2] - 2026-02-13

Fixed

  • Missing usage guide for the env variable config for local MCP servers

[0.3.1] - 2026-02-13

Added

  • An example of how to use the "env" configuration to README.md

[0.3.0] - 2026-02-11

Fixed

  • Issue #45: LangChain 1.2.x compatibility: Need to filter out None values for optional parameters when calling MCP tools
  • Issue #46: MCP tool errors shouldn't raise ToolException to allow LLM's graceful recover
  • Issue #47: Make sure to work with latest models including GPT 5, Claude 4.5, Gemini 3 preview and Grok 4.1

Changed

  • Confirmed compatibility with LangChain 1.2.9+
  • Update simple_usage.py to test recent LLM models
  • Minor updates to README and usage examples

[0.2.13] - 2025-08-18

Added

  • Usage examples of gpt-oss-120b/20b on Cerebras / Groq (confirmed to work with Cerebras and Groq)

Changed

  • Update usage example to test newer OpenAI models

[0.2.12] - 2025-08-06

Fixed

  • Fix issues when showing README.md on PyPI

[0.2.11] - 2025-08-06

Changed

  • Improve the default logger
  • Update dependencies
  • Update README.md

Added

  • Test usage with xAI Grok

[0.2.10] - 2025-07-06

Fixed

  • Properly export McpInitializationError

[0.2.9] - 2025-07-05

Changed

  • Update logger argument to take logging level (e.g. logging.DEBUG) as well
  • Separate out the tool conversion function into tool_adapter.py
  • Separate out the transport utility functions into ransport_utils.py
  • Update README.md
  • Update dependencies

[0.2.8] - 2025-06-29

Changed

  • Update documentation
  • Use leading underscores for the internal functions

[0.2.7] - 2025-06-28

Changed

  • Improve log messages for authentication pre-validation
  • Minor updates to README.md

[0.2.6] - 2025-06-27

Changed

  • Update dependencies

[0.2.5] - 2025-06-27

Added

  • Streamable HTTP Support with MCP 2025-03-26 backwards compatibility guidelines
  • Test servers and clients for Streamable HTTP
  • Support for Google GenAI LLMs
  • McpInitializationError for configuration and connection errors
  • TECHNOCAL.md that explains the implemenation details

Changed

  • Update all documentation to include Streamable HTTP Support
  • Improve logging to show detailed transport selection reasoning
  • Rename testfiles/sse-auth-test-{client,server}.py to use "_" instead of "-"
  • Update dependencies

[0.2.4] - 2025-04-24

Changed

  • Make SingleMcpServerConfig public (it used to be McpServerConfig)
  • Improve documentation
  • Update README.md

[0.2.3] - 2025-04-22

Added

  • Add test files for SSE connection with authentication
  • Add Sphinx documentation with Google-style docstrings

[0.2.2] - 2025-04-17

Changed

  • Add new key "headers" to url based config for SSE server
  • Update README.md for the newly introduced headers key
  • Add README_DEV.md
  • Use double quotes instead of single quotes for string literals
  • Update dependencies

[0.2.1] - 2025-04-11

Changed

  • Update dependencies
  • Minor updates to the README.md

[0.2.0] - 2025-04-04

Changed

  • Add support for SSE and Websocket remote MCP servers
  • Introduced McpServersConfig type
  • Changed stderr of McpServersConfig to errlog to follow Python SDK more closely
  • Use double quotes instead of single quotes for string literals

[0.1.11] - 2025-03-31

Changed

  • Update the dependencies, esp. Updated mcp v1.2.0 -> v1.6.0 (this fixes Issue #22)
  • Add cwd to server_config to specify the working directory for the MCP server to use
  • Add stderr to specify a filedescriptor to which MCP server's stderr is redirected
  • Rename examples/example.py to testfiles/simple-usage.py to avoid confusion

[0.1.10] - 2025-03-25

Changed

  • Make the logger fallback to a pre-configured logger if no root handlers exist
  • Remove unnecessarily added python-dotenv from the dependencies
  • Minor updates to README.me

[0.1.9] - 2025-03-19

Changed

  • Update LLM models used in example.py

[0.1.8] - 2025-03-13

Fixed

  • PR #14: Fix: Handle JSON Schema type: ["string", "null"] for Notion MCP tools

Changed

  • Minor updates to README.me and example.py

[0.1.7] - 2025-02-21

Fixed

  • Issue #11: Move some dev dependencies which are mistakenly in dependencies to the right section

[0.1.6] - 2025-02-20

Added

  • make test-publish target to handle publication more carefully

Changed

  • Estimate the size of returning text in a simpler way
  • Return a text with reasonable explanation when no text return found

[0.1.5] - 2025-02-12

Fixed

  • Issue #8: Content field of tool result is wrong
  • Better checks when converting MCP's results into str

Changed

  • Update example code in README.md to use claude-3-5-sonnet-latest instead of haiku which is sometimes less capable to handle results from MCP