GitHub Copilot CLI 1.0.101 adds structured output for workflow subagents and an approval-guidance setting

GitHub Copilot CLI 1.0.101, dated October 20, 2026, per its release notes:

• New: native structured output for dynamic workflow subagents on supported models; an assistedApprovalInstructions setting to guide Assisted Permissions confirmation decisions; Team-assigned plugins can be installed from Team-defined GitHub marketplaces; /config and /settings can set and unset showReasoning.
• Permissions and sandbox: shell commands that create and then enter a directory now request path approval instead of being denied early; extension capability requests use explicit approval instead of the Assisted judge; macOS sandboxed commands can reach localhost TCP services when local access is enabled and no host filters apply.
• Models: switching from GPT models to Gemini no longer fails when earlier turns include custom tool calls; Google model requests respect registry image limits; local models and loopback providers in providers.json no longer block Auto, a saved model or the default model when signed in to Copilot.
• Fixes: MCP sign-in recovery, Windows shell and taskbar-icon issues, a silent hang on the first prompt when no model is selected, and a number of smaller items.