Story · Claude Code Changelog
Claude Code 2.1.274 (Claude Code Changelog)
blog post · Story page
This build warns you when memory use goes critical, adds CLAUDE_CODE_MCP_STARTUP_WAIT_MS to bound how long the first non-interactive turn waits for connecting MCP servers, and fixes sessions stuck retrying unexpected tool_use_id errors.
In plain words
- Claude Code now warns users when it is using too much computer memory, the space programs use while working.
- The warning explains how to free up that space or restart the program safely.
- A new setting limits the initial wait for outside tools when tasks run without human input.
- A fix keeps a particular tool error from trapping users in endless retries.
Appeared in
- Split an MCP injection across two channels and resistant models leak at 100%
Sep 18, 2026 · in the sections
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