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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v1.0.42 ·

Enhanced Configuration File Locking

Entry
JSON All of v1.0.42
EntryKind: in v1.0.42,
ChangesSection of the release
  • 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 →

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