GitHub Copilot CLI v0.0.399

GitHub Copilot CLI v0.0.399 was released on .

Summary

2026-01-29 - Compaction messages show clearer command hints to view checkpoint summaries - Press Ctrl+X then / to run slash commands without losing your input - Improve /diff command with better vi...

Release Context

  • This was the 22nd GitHub Copilot CLI release of 2026 tracked by Havoptic.
  • It shipped 1 day after GitHub Copilot CLI v0.0.398 (January 28, 2026).

Shipped around the same time

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Release Notes

2026-01-29 - Compaction messages show clearer command hints to view checkpoint summaries - Press Ctrl+X then / to run slash commands without losing your input - Improve /diff command with better visual indicators and scroll acceleration - Add /allow-all and /yolo commands to auto-approve all permissions during a session - Add Copilot option for agent creation wizard to generate name, description, and instructions based on initial agent description - Add LSP (Language Server Protocol) tool for code intelligence (requires staff flag) - Sessions get AI-generated names from first message - Skills remain effective after conversation history is compacted - /usage now includes token consumption from sub-agents (e.g., the general-purpose agent) - Support .claude/commands/ single-file commands as simpler alternative to skills - Skills load correctly on Windows - Add /diff command to review session changes - Undo/rewind to previous states with double-Esc

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