Claude Code 2.1.319 released

A feature release adding MCP task backgrounding, permission settings, and numerous fixes for auto mode, gateways, and file handling.

What changed in 2.1.319

• MCP tasks now run in the background by default; set CLAUDE_CODE_DISABLE_MCP_TASK_BACKGROUND to wait for them instead.
• New permissions.denyInsteadOfPrompting setting denies permission prompts rather than waiting for user input in terminal and agent sessions.
• Auto mode behavior changed when telemetry and feature flags are off: calls are denied with no fallback unless CLAUDE_CODE_AUTO_MODE_SERVER=0 is set.
• Added /claude-api latency-optimize command to identify slow API calls and test faster settings.
• Fixed MCP servers on older handshakes failing to connect, long-running tool calls not reporting results, and auto mode wrongly refusing actions.

Check before you update

• Auto mode with telemetry or feature flags off now denies unchecked server calls by default; set CLAUDE_CODE_AUTO_MODE_SERVER=0 to restore old behavior.
• claude -p now exits with code 1 when auto mode refuses actions due to unavailable safety checks, instead of exit 0.

Summarised by AgentGid from Anthropic's official release notes on GitHub, as reported there; read the original before relying on it. Price, status and release dates come from our daily data.