← Claude Code changelog

Claude Code 2.1.19

Added

  • Added env var `CLAUDE_CODE_ENABLE_TASKS`, set to `false` to keep the old system temporarily
  • Added shorthand `$0`, `$1`, etc. for accessing individual arguments in custom commands
  • Added replay of `queued_command` attachment messages as `SDKUserMessageReplay` events when `replayUserMessages` is enabled

Changed

  • Changed skills without additional permissions or hooks to be allowed without requiring approval
  • Changed indexed argument syntax from `$ARGUMENTS.0` to `$ARGUMENTS[0]` (bracket syntax)
  • Enabled session forking and rewind functionality for all users

Fixed

  • Fixed crashes on processors without AVX instruction support
  • Fixed dangling Claude Code processes when terminal is closed by catching EIO errors from `process.exit()` and using SIGKILL as fallback
  • Fixed `/rename` and `/tag` not updating the correct session when resuming from a different directory (e.g., git worktrees)
  • Fixed resuming sessions by custom title not working when run from a different directory
  • Fixed pasted text content being lost when using prompt stash (Ctrl+S) and restore
  • Fixed agent list displaying "Sonnet (default)" instead of "Inherit (default)" for agents without an explicit model setting
  • Fixed backgrounded hook commands not returning early, potentially causing the session to wait on a process that was intentionally backgrounded
  • Fixed file write preview omitting empty lines