1.0.40

2026-05-01

• PR branch decoration displays correctly in the footer regardless of model name length
• /clear and /new reset the active custom agent selection
• Assistant responses stream with smoother text output
• copilot plugin list shows the correct version after running copilot plugin update
• Add support for client_credentials OAuth grant type for MCP servers, enabling fully headless authentication without a browser
• Subagents correctly evaluate tool search support for their own model instead of inheriting the parent session's settings
• Switching sessions with /new or /resume no longer carries over pending messages to the new session
• CLI no longer hangs at 100% CPU when sending a large file attachment
• Resume session picker no longer shows duplicate entries for the same Mission Control-backed session
• Session resume selector displays summaries on a single line, truncated to fit the column width
• Print "Exiting…" to stderr immediately on Ctrl+C during prompt mode so shutdown progress is visible
• /research uses an orchestrator/subagent model for more thorough and reliable deep research results
• Autopilot mode now limits continuation messages to 5 by default (configurable with --max-autopilot-continues)
• Automatically clean up old CLI package versions from disk during auto-update
• Remote session statusline shows the remote working directory and branch instead of local context
• /update no longer re-submits the original -i prompt after restarting
• Detect Azure DevOps repositories and auto-disable the GitHub MCP server
• Session history, file tracking, and the /chronicle command are now available to all users
• Skills are available as slash commands in ACP clients, matching the CLI experience
• Resuming a session no longer falsely reports it as in use after a previous CLI process exited unexpectedly
• --config-dir now propagates correctly to plugin subcommands; --config-dir is deprecated in favor of COPILOT_HOME
• Mouse selection works while the /ask response dialog is open, so its content can be highlighted and copied
• Improve CLI startup speed by loading custom CA certificates asynchronously
• Remote control link shows the full URL in the timeline instead of 'Open in browser'
• ACP clients (e.g. Zed) now display the agent's live plan as it works through multi-step tasks
• Add toggle for custom statusLine.command visibility in the statusline picker
• ACP clients can now list and switch custom agents via the agent config option
• MCP OAuth tokens cache correctly when multiple servers share the same URL but use different static OAuth client IDs
• MCP tool names with dots or other invalid characters are now sanitized correctly
• Ctrl+C and double-Esc remove pending queued messages one at a time instead of all at once
• Slash command suggestions rank prefix matches above fuzzy matches
• Prompt mode (-p) now gates repo hooks and workspace MCP behind opt-in env vars (GITHUB_COPILOT_PROMPT_MODE_REPO_HOOKS and GITHUB_COPILOT_PROMPT_MODE_WORKSPACE_MCP) for secure-by-default behavior

1.0.40-3

Added

• Add support for client_credentials OAuth grant type for MCP servers, enabling fully headless authentication without a browser

Improved

• Print "Exiting…" to stderr immediately on Ctrl+C during prompt mode so shutdown progress is visible
• /research uses an orchestrator/subagent model for more thorough and reliable deep research results
• Autopilot mode now limits continuation messages to 5 by default (configurable with --max-autopilot-continues)
• Automatically clean up old CLI package versions from disk during auto-update
• Remote session statusline shows the remote working directory and branch instead of local context

Fixed

• Subagents correctly evaluate tool search support for their own model instead of inheriting the parent session's settings
• Switching sessions with /new or /resume no longer carries over pending messages to the new session
• CLI no longer hangs at 100% CPU when sending a large file attachment
• Resume session picker no longer shows duplicate entries for the same Mission Control-backed session
• Session resume selector displays summaries on a single line, truncated to fit the column width

1.0.40-2

Fixed

• /update no longer re-submits the original -i prompt after restarting

1.0.40-1

Added

• Detect Azure DevOps repositories and auto-disable the GitHub MCP server
• Session history, file tracking, and the /chronicle command are now available to all users
• Skills are available as slash commands in ACP clients, matching the CLI experience

Improved

• Improve CLI startup speed by loading custom CA certificates asynchronously
• Remote control link shows the full URL in the timeline instead of 'Open in browser'
• ACP clients (e.g. Zed) now display the agent's live plan as it works through multi-step tasks
• Add toggle for custom statusLine.command visibility in the statusline picker

Fixed

• Resuming a session no longer falsely reports it as in use after a previous CLI process exited unexpectedly
• --config-dir now propagates correctly to plugin subcommands; --config-dir is deprecated in favor of COPILOT_HOME
• Mouse selection works while the /ask response dialog is open, so its content can be highlighted and copied

1.0.40-0

Added

• ACP clients can now list and switch custom agents via the agent config option

Improved

• Ctrl+C and double-Esc remove pending queued messages one at a time instead of all at once
• Slash command suggestions rank prefix matches above fuzzy matches
• Prompt mode (-p) now gates repo hooks and workspace MCP behind opt-in env vars (GITHUB_COPILOT_PROMPT_MODE_REPO_HOOKS and GITHUB_COPILOT_PROMPT_MODE_WORKSPACE_MCP) for secure-by-default behavior

Fixed

• MCP OAuth tokens cache correctly when multiple servers share the same URL but use different static OAuth client IDs
• MCP tool names with dots or other invalid characters are now sanitized correctly

1.0.39

2026-04-28

• Allow ACP clients to toggle allow-all permission mode via session configuration
• Add /compact, /context, /usage, and /env slash commands for ACP sessions
• Press ctrl+x → b to move the current running task or shell command to the background
• Transient pipe errors on child process stdio streams no longer cause crashes or trigger false crash reports
• /remote status output now shows actionable hints for each connection state
• Improve --resume session picker with better tab layout, status display, and progressive loading
• Slash command argument picker opens immediately at exact command boundaries without requiring a trailing space

1.0.39-0

Added

• Press ctrl+x → b to move the current running task or shell command to the background

Improved

• /remote status output now shows actionable hints for each connection state
• Improve --resume session picker with better tab layout, status display, and progressive loading
• Slash command argument picker opens immediately at exact command boundaries without requiring a trailing space

Fixed

• Transient pipe errors on child process stdio streams no longer cause crashes or trigger false crash reports

1.0.37

2026-04-27

• Location-based permission persistence is now enabled by default, so approvals carry over across sessions for the same directory
• Add copilot completion <bash|zsh|fish> subcommand to generate static shell completion scripts for subcommands, flags, and known choice values
• Press s in the session picker to cycle sort order: relevance, last used, created, or name
• ACP model config options now include description and metadata for clients using the configOptions API
• Model and effort change notification no longer appears when re-selecting the same model or effort level
• Clipboard write no longer leaks X11 handles on Linux
• Pending message indicator displays correctly alongside prompt frames
• Fix detached HEAD detection always returning false after switch to git branch --show-current
• Skill picker list stays fully visible when skills have errors or warnings
• /ask responses now render markdown, including tables and formatted links

1.0.36

2026-04-24

• Subcommand picker shows a selection indicator (❯) next to the highlighted item
• Clearer error message with a direct link when multiple Copilot licenses are detected
• Fixed an issue where preToolUse.matcher was ignored. After upgrade, hooks with matcher run only for tool names that fully match the regex.
• /keep-alive is available without experimental mode to prevent system sleep while Copilot CLI is active
• /remote command shows current status and supports /remote on and /remote off to toggle remote control
• Disabled skills no longer appear in the slash command list
• Add a 'changes' statusline toggle to show added/removed line counts for the session
• Custom instruction files in .gitignored directories (e.g., .github/instructions/) now load correctly
• Require double Esc to cancel in-flight work, preventing accidental interruptions
• Saving debug logs or feedback bundles no longer overwrites existing archive files
• Custom agents, skills, and commands from ~/.claude/ are no longer loaded by the Copilot CLI
• Claude Opus 4.6 now uses medium reasoning effort by default

1.0.36-1

Added

• Add a 'changes' statusline toggle to show added/removed line counts for the session

Improved

• Require double Esc to cancel in-flight work, preventing accidental interruptions

Fixed

• Custom instruction files in .gitignored directories (e.g., .github/instructions/) now load correctly