dvershinin/lastversion v3.6.7

on GitHub

Changed

• Simplified lock mechanism: now uses a single lock file instead of a lock directory
  • Lock file contains just the PID (no nested directory structure)
  • Uses atomic O_CREAT | O_EXCL for race-free lock acquisition
  • Simpler cleanup: just os.remove() instead of shutil.rmtree()
  • Backward compatible: automatically cleans up old directory-based locks from v3.6.5-v3.6.6