Claude Code 2.1.274 adds low-memory warnings and fixes stuck MCP sessions
Anthropic's release fixes HTTP+SSE MCP servers failing to connect on 4xx errors, streamable HTTP MCP calls timing out after five minutes, and sessions stuck retrying "unexpected tool_use_id" errors, plus a new warning when a session's memory usage turns critical.
why it mattersMCP connection reliability has been a recurring pain point for anyone wiring Claude Code into external tool servers.