What's Changed

• fix(ChatMistralAI): Handle broken tool names that kill LLMChain by @xu-chris in https://github.com/brainlid/langchain/pull/448
• Handle thought content parts from Google Vertex by @mattmatters in https://github.com/brainlid/langchain/pull/430
• feat: Verify function parameters before executing, reject faulty message deltas by @xu-chris in https://github.com/brainlid/langchain/pull/449
• fix(ChatOpenAIResponses): Handle failed response status from OpenAI Responses API by @xu-chris in https://github.com/brainlid/langchain/pull/450
• Expanding callbacks for tool detection and UI feedback by @brainlid in https://github.com/brainlid/langchain/pull/453

Full Changelog: https://github.com/brainlid/langchain/compare/v0.5.0...v0.5.1