GitHub Copilot CLI v0.0.412

GitHub Copilot CLI v0.0.412 was released on .

Summary

2026-02-19 - Improve quick help accessibility: screen reader-friendly tab labels, reordered layout, and grouped help commands output - Hide custom agents with user-invocable: false from the /agents...

Release Context

  • This was the 35th GitHub Copilot CLI release of 2026 tracked by Havoptic.
  • It shipped 2 days after GitHub Copilot CLI v0.0.411 (February 17, 2026).

Shipped around the same time

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Release Notes

2026-02-19 - Improve quick help accessibility: screen reader-friendly tab labels, reordered layout, and grouped help commands output - Hide custom agents with user-invocable: false from the /agents picker - Config file syntax errors now show a warning instead of silently crashing - Sign Windows native prebuilds with Authenticode to prevent antivirus quarantine of native modules - Allow /reset-allowed-tools to run during agent execution - MCP servers with invalid tool schemas no longer lose all tools - Alt-screen mode no longer consumes increasing memory over long sessions - Add /mcp reload command to reload MCP configuration - Skills support disable-model-invocation frontmatter field - /fleet orchestrator validates subagent work - Deprecate gpt-5 model - Windows slash flags (e.g., xcopy /E /I) are no longer treated as file paths - Show a warning in the timeline when skills fail to load at startup, with a prompt to run /skills for details - Eliminate banner character flash on startup when banner is disabled - Edit plan in terminal editor with ctrl+y - Terminal editor is now supported on Windows - Configure LSP server request timeouts in lsp.json - Add /update command to view changelog and update instructions - Add exitplanmode tool with plan approval dialog for reviewing and accepting plans - Support ~/.copilot/instructions/\.instructions.md files for user-level instructions across all repositories - Add double-click word and triple-click line selection in alt-screen text selection - Edit the prompt in your preferred terminal editor with ctrl+x ctrl+e - Prevents spurious error messages from appearing in terminal on Windows - Typing ? in an AskUser prompt no longer triggers the quick help overlay - Improve SQL tool timeline entries - Reduce memory usage in alt-screen mode during long sessions - /fleet mode dispatches more subagents in parallel for faster execution - Instructions picker opens as a full-screen alt-screen view when alt-screen mode is enabled - Skills picker opens as a full-screen alt-screen view when alt-screen mode is enabled - Command files no longer require YAML frontmatter — plain markdown files work with name and description derived automatically - Session picker opens instantly without a loading flash when multiple sessions exist - Mouse event coordinate fragments no longer appear in input field - Add cross-session memory: ask about past work, files, and PRs across sessions (experimental) - Add --bash-env flag to source BASHENV in shell sessions - Restore ctrl+x / as alternate shortcut to run commands while preserving input - /clear preserves agent mode (autopilot, plan, or interactive) - MCP error messages include the server name - Text selection in timeline no longer spills into prompt area when dragging

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