Claude Code v2.1.271 adds fast mode in remote sessions and per-command sandbox domains
Anthropic
Claude Code v2.1.271 (Sep 14) brings fast mode to Remote sessions, per-command allowed_domains for Bash/PowerShell/Monitor sandboxing, omitClaudeMd for subagents, and --accept-command (sha256) for plugin installs, plus MCP OAuth and --resume fixes. A follow-up v2.1.272 (Sep 15) ships only bug fixes.
Why it matters
Sandboxing granularity and plugin-install verification are security-relevant controls for teams running Claude Code in restricted environments.
Importance: 2/5
Minor version with security-relevant sandboxing and plugin-verification features