Sourced from @​github/copilot's releases.

0.0.421

2026-03-03

• Autopilot permission dialog appears on first prompt submission instead of on mode switch
• AUTO theme now reads your terminal's ANSI color palette and uses it directly, so colors match your terminal theme
• Add structured form input for the ask_user tool using MCP Elicitations (experimental)
• Plugin commands read extraKnownMarketplaces from project-level .claude/settings.json for Claude compatibility
• Git hooks can detect Copilot CLI subprocesses via the COPILOT_CLI=1 environment variable to skip interactive prompts
• Spurious "write EIO" error entries no longer appear in the timeline during session resume or terminal state transitions
• Python-based MCP servers no longer time out due to buffered stdout
• Error when --model flag specifies an unavailable model
• MCP server availability correctly updates after signing in, switching accounts, or signing out
• Display clickable PR reference next to branch name in the status bar
• Add --plugin-dir flag to load a plugin from a local directory
• Mouse text selection is automatically copied to the Linux primary selection buffer (middle-click to paste)
• Fix VS Code shift+enter and ctrl+enter keybindings for multiline input
• Use consistent ~/.copilot/pkg path for auto-update instead of XDG_STATE_HOME
• ACP clients can configure reasoning effort via session config options
• Click links in the terminal to open them in your default browser
• Support repo-level config via .github/copilot/config.json for shared project settings like marketplaces and launch messages
• Streaming output no longer truncates when running in alt-screen mode
• Right-click paste no longer produces garbled text on Windows
• Shell command output on Windows no longer renders as "No changes detected" in the timeline
• GitHub API errors no longer appear as raw HTTP messages in the terminal when using the # reference picker
• Markdown tables render with proper column widths, word wrap, and Unicode borders that adapt to terminal width
• MCP elicitation form displays taller multi-line text input, hides tab bar for single-field forms, and fixes error flashing on field navigation

0.0.421-2

Added

• Add structured form input for the ask_user tool using MCP Elicitations (experimental)
• Add --plugin-dir flag to load a plugin from a local directory
• Mouse text selection is automatically copied to the Linux primary selection buffer (middle-click to paste)

Improved

• Autopilot permission dialog appears on first prompt submission instead of on mode switch
• AUTO theme now reads your terminal's ANSI color palette and uses it directly, so colors match your terminal theme
• Plugin commands read extraKnownMarketplaces from project-level .claude/settings.json for Claude compatibility
• Use consistent ~/.copilot/pkg path for auto-update instead of XDG_STATE_HOME

Fixed

• Git hooks can detect Copilot CLI subprocesses via the COPILOT_CLI=1 environment variable to skip interactive prompts
• Spurious "write EIO" error entries no longer appear in the timeline during session resume or terminal state transitions
• Python-based MCP servers no longer time out due to buffered stdout
• MCP server availability correctly updates after signing in, switching accounts, or signing out
• Fix VS Code shift+enter and ctrl+enter keybindings for multiline input

0.0.421-1

Improved

• AUTO theme now reads your terminal's ANSI color palette and uses it directly, so colors match your terminal theme

... (truncated)

Sourced from @​github/copilot's changelog.

0.0.421 - 2026-03-03

• Autopilot permission dialog appears on first prompt submission instead of on mode switch
• AUTO theme now reads your terminal's ANSI color palette and uses it directly, so colors match your terminal theme
• Add structured form input for the ask_user tool using MCP Elicitations (experimental)
• Plugin commands read extraKnownMarketplaces from project-level .claude/settings.json for Claude compatibility
• Git hooks can detect Copilot CLI subprocesses via the COPILOT_CLI=1 environment variable to skip interactive prompts
• Spurious "write EIO" error entries no longer appear in the timeline during session resume or terminal state transitions
• Python-based MCP servers no longer time out due to buffered stdout
• Error when --model flag specifies an unavailable model
• MCP server availability correctly updates after signing in, switching accounts, or signing out
• Display clickable PR reference next to branch name in the status bar
• Add --plugin-dir flag to load a plugin from a local directory
• Mouse text selection is automatically copied to the Linux primary selection buffer (middle-click to paste)
• Fix VS Code shift+enter and ctrl+enter keybindings for multiline input
• Use consistent ~/.copilot/pkg path for auto-update instead of XDG_STATE_HOME
• ACP clients can configure reasoning effort via session config options
• Click links in the terminal to open them in your default browser
• Support repo-level config via .github/copilot/config.json for shared project settings like marketplaces and launch messages
• Streaming output no longer truncates when running in alt-screen mode
• Right-click paste no longer produces garbled text on Windows
• Shell command output on Windows no longer renders as "No changes detected" in the timeline
• GitHub API errors no longer appear as raw HTTP messages in the terminal when using the # reference picker
• Markdown tables render with proper column widths, word wrap, and Unicode borders that adapt to terminal width
• MCP elicitation form displays taller multi-line text input, hides tab bar for single-field forms, and fixes error flashing on field navigation

• 119c6f8 Merge pull request #1699 from github/devm33/install-ready
• 3b73154 Update changelog.md for version 0.0.420
• 30034c7 install: guide user to update PATH for current shell session
• See full diff in compare view

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