Copilot CLI v1.0.41: File Attachments & Edit Reliability

Copilot CLI 1.0.41 adds file attachment support for non-interactive prompts, improves edit reliability, and fixes @-mention completion for paths. Windows stability also improved.

Copilot CLI v1.0.41: File Attachments & Edit Reliability

TL;DR

  • Attach files to prompts in non-interactive mode with new --attachment flag
  • File edits now recover better from fuzzy alignment issues
  • @-mention completion fixed for paths, Windows stability improved

New

  • --attachment flag — attach images or documents to initial prompts in -p/--prompt mode, enabling richer context without interactive mode

Improved

  • File edit reliability — better recovery from fuzzy or misaligned edit blocks reduces failed edits

Fixed

  • @-mention completion now works for ./ paths, removes trailing space on directories, shows project files before workspace roots
  • Windows stability — worked around V8 crash in Node 24.x
  • Session files with Unicode line separator characters now load correctly
  • Reasoning effort picker hint text displays "Esc to cancel" with proper spacing

Update: npm install -g @github/copilot-cli@1.0.41-0

Source: Copilot CLI