GitHub Copilot CLI v0.0.406

GitHub Copilot CLI v0.0.406 was released on .

Summary

2026-02-07 - Add support for Claude Opus 4.6 Fast (Preview) - Markdown formatting displays in non-interactive mode output - Display warning when user has no Copilot subscription - Commands from plu...

Release Context

  • This was the 29th GitHub Copilot CLI release of 2026 tracked by Havoptic.
  • It shipped 2 days after GitHub Copilot CLI v0.0.405 (February 5, 2026).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

Compare GitHub Copilot CLI: vs Claude Code · vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs Devin Desktop · vs Antigravity CLI

Release Notes

2026-02-07 - Add support for Claude Opus 4.6 Fast (Preview) - Markdown formatting displays in non-interactive mode output - Display warning when user has no Copilot subscription - Commands from plugins are now translated into skills - Add /changelog command to view release notes - plugin marketplace add accepts URLs as sources - --no-experimental flag disables experimental features - CLI interface renders without extra blank line - /mcp show displays enabled/disabled status for MCP tools - MCP tool responses now include structured content (images, resources) for richer UI display in VS Code

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