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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v1.0.42 Home All releases ←olderv1.0.41 v1.0.43newer→
Claude Code v1.0.42

Enhanced Configuration File Locking

  • Improved multi-instance handling: Added file locking mechanism when saving configuration to prevent conflicts between multiple Claude instances
  • Automatically acquires a lock on the config file (config.json.lock) before modifications
  • Displays warning if lock acquisition takes longer than 100ms: "Lock acquisition took longer than expected - another Claude instance may be running"
  • Shows process ID (PID) when acquiring locks for better debugging

See this entry in the whole of v1.0.42 →