{"version":"2.1.280","anchor":"lock-file-detection-now-recognizes-emacs-style-dot-hash-lock","canonical_anchor":"lock-file-detection-now-recognizes-emacs-style-dot-hash-lock","heading":"Lock-file detection now recognizes Emacs-style dot-hash lock files","tier":"notice","area":"File Handling","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/lock-file-detection-now-recognizes-emacs-style-dot-hash-lock","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### Lock-file detection now recognizes Emacs-style dot-hash lock files\n\nFile-edit lock detection now also recognizes Emacs-style '.#filename' lock files\n\n**What**\n\nClaude Code checks for lock or swap files that some editors create while a file is open, to avoid conflicting edits. It now also recognizes the Emacs lock-file naming pattern, `.#filename`, in addition to the patterns it already checked.\n\n**Why**\n\nThis lets Claude Code detect when a file is currently open in Emacs, the same way it already detects this for other editors, and avoid conflicting with it.\n\n- Area: File Handling\n- Tier: You'll notice\n- Useful: 1\/5\n- Signal: 1\/5"}