# What changed in langchain-mcp-adapters

> 3 changes in langchain-mcp-adapters 0.3 from its official release notes, upgrade guides and advisories: 1 new APIs and options. Each one cited. Sources checked 2026-10-19. HTML: https://unstale.sh/pypi/langchain-mcp-adapters/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## langchain-mcp-adapters 0.3

### New APIs and options

- Adds get_server_info to retrieve MCP server metadata. (0.3.1) — [release notes](https://github.com/langchain-ai/langchain-mcp-adapters/releases/tag/langchain-mcp-adapters%3D%3D0.3.1)

### Behavior and default changes

- MCP tool execution errors are surfaced as failed tool output, allowing applications to handle tool failures through the output. (0.3.0) — [release notes](https://github.com/langchain-ai/langchain-mcp-adapters/releases/tag/langchain-mcp-adapters%3D%3D0.3.0)

### Fixes and other changes

- Caps mcp below 2.0.0 to prevent import failures. (0.3.2) — [release notes](https://github.com/langchain-ai/langchain-mcp-adapters/releases/tag/langchain-mcp-adapters%3D%3D0.3.2)